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-rw-r--r--tools/testing/selftests/pidfd/pidfd_getfd_test.c249
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/cpus2use.sh11
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/jitter.sh30
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh3
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh13
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm.sh30
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/mkinitrd.sh55
-rw-r--r--tools/testing/selftests/rseq/param_test.c18
-rw-r--r--tools/testing/selftests/rseq/rseq.h12
-rw-r--r--tools/testing/selftests/rseq/settings1
-rw-r--r--tools/testing/selftests/safesetid/Makefile5
-rw-r--r--tools/testing/selftests/safesetid/safesetid-test.c15
-rw-r--r--tools/testing/selftests/seccomp/seccomp_bpf.c15
-rw-r--r--tools/testing/selftests/size/get_size.c24
-rw-r--r--tools/testing/selftests/tc-testing/tc-tests/filters/basic.json2
-rw-r--r--tools/testing/selftests/tc-testing/tc-tests/filters/tests.json22
-rw-r--r--tools/testing/selftests/tc-testing/tc-tests/filters/u32.json205
-rw-r--r--tools/testing/selftests/tc-testing/tc-tests/qdiscs/ets.json940
-rw-r--r--tools/testing/selftests/timens/.gitignore8
-rw-r--r--tools/testing/selftests/timens/Makefile7
-rw-r--r--tools/testing/selftests/timens/clock_nanosleep.c149
-rw-r--r--tools/testing/selftests/timens/config1
-rw-r--r--tools/testing/selftests/timens/exec.c94
-rw-r--r--tools/testing/selftests/timens/gettime_perf.c95
-rw-r--r--tools/testing/selftests/timens/log.h26
-rw-r--r--tools/testing/selftests/timens/procfs.c144
-rw-r--r--tools/testing/selftests/timens/timens.c190
-rw-r--r--tools/testing/selftests/timens/timens.h100
-rw-r--r--tools/testing/selftests/timens/timer.c122
-rw-r--r--tools/testing/selftests/timens/timerfd.c128
-rwxr-xr-xtools/testing/selftests/tpm2/test_smoke.sh6
-rw-r--r--tools/testing/selftests/tpm2/tpm2.py19
-rw-r--r--tools/testing/selftests/tpm2/tpm2_tests.py13
-rwxr-xr-xtools/testing/selftests/wireguard/netns.sh534
-rw-r--r--tools/testing/selftests/wireguard/qemu/.gitignore2
-rw-r--r--tools/testing/selftests/wireguard/qemu/Makefile387
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/aarch64.config5
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/aarch64_be.config6
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/arm.config9
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/armeb.config10
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/i686.config5
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/m68k.config9
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/mips.config11
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/mips64.config14
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/mips64el.config15
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/mipsel.config12
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/powerpc.config10
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/powerpc64le.config12
-rw-r--r--tools/testing/selftests/wireguard/qemu/arch/x86_64.config5
-rw-r--r--tools/testing/selftests/wireguard/qemu/debug.config67
-rw-r--r--tools/testing/selftests/wireguard/qemu/init.c285
-rw-r--r--tools/testing/selftests/wireguard/qemu/kernel.config88
-rw-r--r--tools/testing/vsock/.gitignore1
-rw-r--r--tools/testing/vsock/Makefile9
-rw-r--r--tools/testing/vsock/README3
-rw-r--r--tools/testing/vsock/control.c15
-rw-r--r--tools/testing/vsock/control.h2
-rw-r--r--tools/testing/vsock/timeout.h1
-rw-r--r--tools/testing/vsock/util.c375
-rw-r--r--tools/testing/vsock/util.h49
-rw-r--r--tools/testing/vsock/vsock_diag_test.c202
-rw-r--r--tools/testing/vsock/vsock_test.c379
-rw-r--r--tools/usb/usbip/README22
-rw-r--r--tools/usb/usbip/src/usbip_network.c40
-rw-r--r--tools/usb/usbip/src/usbip_network.h12
-rwxr-xr-xusr/gen_initramfs_list.sh2
-rw-r--r--usr/include/Makefile2
-rw-r--r--virt/kvm/arm/arm.c4
-rw-r--r--virt/kvm/arm/mmu.c30
-rw-r--r--virt/kvm/arm/vgic/vgic-init.c20
8579 files changed, 400180 insertions, 174424 deletions
diff --git a/.mailmap b/.mailmap
index 00581c1f0983..bf581623ee3a 100644
--- a/.mailmap
+++ b/.mailmap
@@ -74,6 +74,7 @@ Dmitry Safonov <0x7f454c46@gmail.com> <dima@arista.com>
Domen Puncer <domen@coderock.org>
Douglas Gilbert <dougg@torque.net>
Ed L. Cashin <ecashin@coraid.com>
+Erik Kaneda <erik.kaneda@intel.com> <erik.schmauss@intel.com>
Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Felipe W Damasio <felipewd@terra.com.br>
Felix Kuhling <fxkuehl@gmx.de>
@@ -99,6 +100,7 @@ Jacob Shin <Jacob.Shin@amd.com>
Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk@google.com>
Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk@motorola.com>
Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk.kim@samsung.com>
+Jakub Kicinski <kuba@kernel.org> <jakub.kicinski@netronome.com>
James Bottomley <jejb@mulgrave.(none)>
James Bottomley <jejb@titanic.il.steeleye.com>
James E Wilson <wilson@specifix.com>
@@ -137,6 +139,7 @@ Juha Yrjola <at solidboot.com>
Juha Yrjola <juha.yrjola@nokia.com>
Juha Yrjola <juha.yrjola@solidboot.com>
Julien Thierry <julien.thierry.kdev@gmail.com> <julien.thierry@arm.com>
+Kamil Konieczny <k.konieczny@samsung.com> <k.konieczny@partner.samsung.com>
Kay Sievers <kay.sievers@vrfy.org>
Kenneth W Chen <kenneth.w.chen@intel.com>
Konstantin Khlebnikov <koct9i@gmail.com> <k.khlebnikov@samsung.com>
@@ -152,6 +155,7 @@ Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@web.de>
Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
Li Yang <leoyang.li@nxp.com> <leo@zh-kernel.org>
Li Yang <leoyang.li@nxp.com> <leoli@freescale.com>
+Lukasz Luba <lukasz.luba@arm.com> <l.luba@partner.samsung.com>
Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>
Marc Zyngier <maz@kernel.org> <marc.zyngier@arm.com>
Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
@@ -207,6 +211,10 @@ Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Patrick Mochel <mochel@digitalimplant.org>
Paul Burton <paulburton@kernel.org> <paul.burton@imgtec.com>
Paul Burton <paulburton@kernel.org> <paul.burton@mips.com>
+Paul E. McKenney <paulmck@kernel.org> <paulmck@linux.ibm.com>
+Paul E. McKenney <paulmck@kernel.org> <paulmck@linux.vnet.ibm.com>
+Paul E. McKenney <paulmck@kernel.org> <paul.mckenney@linaro.org>
+Paul E. McKenney <paulmck@kernel.org> <paulmck@us.ibm.com>
Peter A Jonsson <pj@ludd.ltu.se>
Peter Oruba <peter@oruba.de>
Peter Oruba <peter.oruba@amd.com>
@@ -215,6 +223,7 @@ Praveen BP <praveenbp@ti.com>
Punit Agrawal <punitagrawal@gmail.com> <punit.agrawal@arm.com>
Qais Yousef <qsyousef@gmail.com> <qais.yousef@imgtec.com>
Quentin Perret <qperret@qperret.net> <quentin.perret@arm.com>
+Rafael J. Wysocki <rjw@rjwysocki.net> <rjw@sisk.pl>
Rajesh Shah <rajesh.shah@intel.com>
Ralf Baechle <ralf@linux-mips.org>
Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
@@ -265,6 +274,7 @@ Vinod Koul <vkoul@kernel.org> <vkoul@infradead.org>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com>
Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar2@arm.com>
+Vivien Didelot <vivien.didelot@gmail.com> <vivien.didelot@savoirfairelinux.com>
Vlad Dogaru <ddvlad@gmail.com> <vlad.dogaru@intel.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@virtuozzo.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>
diff --git a/CREDITS b/CREDITS
index 9602b0fa1c95..a97d3280a627 100644
--- a/CREDITS
+++ b/CREDITS
@@ -3302,7 +3302,9 @@ S: France
N: Aleksa Sarai
E: cyphar@cyphar.com
W: https://www.cyphar.com/
-D: `pids` cgroup subsystem
+D: /sys/fs/cgroup/pids
+D: openat2(2)
+S: Sydney, Australia
N: Dipankar Sarma
E: dipankar@in.ibm.com
diff --git a/Documentation/ABI/obsolete/sysfs-selinux-disable b/Documentation/ABI/obsolete/sysfs-selinux-disable
new file mode 100644
index 000000000000..c340278e3cf8
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-selinux-disable
@@ -0,0 +1,26 @@
+What: /sys/fs/selinux/disable
+Date: April 2005 (predates git)
+KernelVersion: 2.6.12-rc2 (predates git)
+Contact: selinux@vger.kernel.org
+Description:
+
+ The selinuxfs "disable" node allows SELinux to be disabled at runtime
+ prior to a policy being loaded into the kernel. If disabled via this
+ mechanism, SELinux will remain disabled until the system is rebooted.
+
+ The preferred method of disabling SELinux is via the "selinux=0" boot
+ parameter, but the selinuxfs "disable" node was created to make it
+ easier for systems with primitive bootloaders that did not allow for
+ easy modification of the kernel command line. Unfortunately, allowing
+ for SELinux to be disabled at runtime makes it difficult to secure the
+ kernel's LSM hooks using the "__ro_after_init" feature.
+
+ Thankfully, the need for the SELinux runtime disable appears to be
+ gone, the default Kconfig configuration disables this selinuxfs node,
+ and only one of the major distributions, Fedora, supports disabling
+ SELinux at runtime. Fedora is in the process of removing the
+ selinuxfs "disable" node and once that is complete we will start the
+ slow process of removing this code from the kernel.
+
+ More information on /sys/fs/selinux/disable can be found under the
+ CONFIG_SECURITY_SELINUX_DISABLE Kconfig option.
diff --git a/Documentation/ABI/stable/sysfs-class-tpm b/Documentation/ABI/stable/sysfs-class-tpm
index c0e23830f56a..58e94e7d55be 100644
--- a/Documentation/ABI/stable/sysfs-class-tpm
+++ b/Documentation/ABI/stable/sysfs-class-tpm
@@ -1,7 +1,7 @@
What: /sys/class/tpm/tpmX/device/
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The device/ directory under a specific TPM instance exposes
the properties of that TPM chip
@@ -9,7 +9,7 @@ Description: The device/ directory under a specific TPM instance exposes
What: /sys/class/tpm/tpmX/device/active
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "active" property prints a '1' if the TPM chip is accepting
commands. An inactive TPM chip still contains all the state of
an active chip (Storage Root Key, NVRAM, etc), and can be
@@ -21,7 +21,7 @@ Description: The "active" property prints a '1' if the TPM chip is accepting
What: /sys/class/tpm/tpmX/device/cancel
Date: June 2005
KernelVersion: 2.6.13
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "cancel" property allows you to cancel the currently
pending TPM command. Writing any value to cancel will call the
TPM vendor specific cancel operation.
@@ -29,7 +29,7 @@ Description: The "cancel" property allows you to cancel the currently
What: /sys/class/tpm/tpmX/device/caps
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "caps" property contains TPM manufacturer and version info.
Example output:
@@ -46,7 +46,7 @@ Description: The "caps" property contains TPM manufacturer and version info.
What: /sys/class/tpm/tpmX/device/durations
Date: March 2011
KernelVersion: 3.1
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "durations" property shows the 3 vendor-specific values
used to wait for a short, medium and long TPM command. All
TPM commands are categorized as short, medium or long in
@@ -69,7 +69,7 @@ Description: The "durations" property shows the 3 vendor-specific values
What: /sys/class/tpm/tpmX/device/enabled
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "enabled" property prints a '1' if the TPM chip is enabled,
meaning that it should be visible to the OS. This property
may be visible but produce a '0' after some operation that
@@ -78,7 +78,7 @@ Description: The "enabled" property prints a '1' if the TPM chip is enabled,
What: /sys/class/tpm/tpmX/device/owned
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "owned" property produces a '1' if the TPM_TakeOwnership
ordinal has been executed successfully in the chip. A '0'
indicates that ownership hasn't been taken.
@@ -86,7 +86,7 @@ Description: The "owned" property produces a '1' if the TPM_TakeOwnership
What: /sys/class/tpm/tpmX/device/pcrs
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "pcrs" property will dump the current value of all Platform
Configuration Registers in the TPM. Note that since these
values may be constantly changing, the output is only valid
@@ -109,7 +109,7 @@ Description: The "pcrs" property will dump the current value of all Platform
What: /sys/class/tpm/tpmX/device/pubek
Date: April 2005
KernelVersion: 2.6.12
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "pubek" property will return the TPM's public endorsement
key if possible. If the TPM has had ownership established and
is version 1.2, the pubek will not be available without the
@@ -161,7 +161,7 @@ Description: The "pubek" property will return the TPM's public endorsement
What: /sys/class/tpm/tpmX/device/temp_deactivated
Date: April 2006
KernelVersion: 2.6.17
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "temp_deactivated" property returns a '1' if the chip has
been temporarily deactivated, usually until the next power
cycle. Whether a warm boot (reboot) will clear a TPM chip
@@ -170,7 +170,7 @@ Description: The "temp_deactivated" property returns a '1' if the chip has
What: /sys/class/tpm/tpmX/device/timeouts
Date: March 2011
KernelVersion: 3.1
-Contact: tpmdd-devel@lists.sf.net
+Contact: linux-integrity@vger.kernel.org
Description: The "timeouts" property shows the 4 vendor-specific values
for the TPM's interface spec timeouts. The use of these
timeouts is defined by the TPM interface spec that the chip
@@ -183,3 +183,14 @@ Description: The "timeouts" property shows the 4 vendor-specific values
The four timeout values are shown in usecs, with a trailing
"[original]" or "[adjusted]" depending on whether the values
were scaled by the driver to be reported in usec from msecs.
+
+What: /sys/class/tpm/tpmX/tpm_version_major
+Date: October 2019
+KernelVersion: 5.5
+Contact: linux-integrity@vger.kernel.org
+Description: The "tpm_version_major" property shows the TCG spec major version
+ implemented by the TPM device.
+
+ Example output:
+
+ 2
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
new file mode 100644
index 000000000000..f4be46cc6cb6
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -0,0 +1,171 @@
+What: sys/bus/dsa/devices/dsa<m>/cdev_major
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The major number that the character device driver assigned to
+ this device.
+
+What: sys/bus/dsa/devices/dsa<m>/errors
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The error information for this device.
+
+What: sys/bus/dsa/devices/dsa<m>/max_batch_size
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The largest number of work descriptors in a batch.
+
+What: sys/bus/dsa/devices/dsa<m>/max_work_queues_size
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The maximum work queue size supported by this device.
+
+What: sys/bus/dsa/devices/dsa<m>/max_engines
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The maximum number of engines supported by this device.
+
+What: sys/bus/dsa/devices/dsa<m>/max_groups
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The maximum number of groups can be created under this device.
+
+What: sys/bus/dsa/devices/dsa<m>/max_tokens
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The total number of bandwidth tokens supported by this device.
+ The bandwidth tokens represent resources within the DSA
+ implementation, and these resources are allocated by engines to
+ support operations.
+
+What: sys/bus/dsa/devices/dsa<m>/max_transfer_size
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The number of bytes to be read from the source address to
+ perform the operation. The maximum transfer size is dependent on
+ the workqueue the descriptor was submitted to.
+
+What: sys/bus/dsa/devices/dsa<m>/max_work_queues
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The maximum work queue number that this device supports.
+
+What: sys/bus/dsa/devices/dsa<m>/numa_node
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The numa node number for this device.
+
+What: sys/bus/dsa/devices/dsa<m>/op_cap
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The operation capability bit mask specify the operation types
+ supported by the this device.
+
+What: sys/bus/dsa/devices/dsa<m>/state
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The state information of this device. It can be either enabled
+ or disabled.
+
+What: sys/bus/dsa/devices/dsa<m>/group<m>.<n>
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The assigned group under this device.
+
+What: sys/bus/dsa/devices/dsa<m>/engine<m>.<n>
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The assigned engine under this device.
+
+What: sys/bus/dsa/devices/dsa<m>/wq<m>.<n>
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The assigned work queue under this device.
+
+What: sys/bus/dsa/devices/dsa<m>/configurable
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: To indicate if this device is configurable or not.
+
+What: sys/bus/dsa/devices/dsa<m>/token_limit
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The maximum number of bandwidth tokens that may be in use at
+ one time by operations that access low bandwidth memory in the
+ device.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/group_id
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The group id that this work queue belongs to.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/size
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The work queue size for this work queue.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/type
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The type of this work queue, it can be "kernel" type for work
+ queue usages in the kernel space or "user" type for work queue
+ usages by applications in user space.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/cdev_minor
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The minor number assigned to this work queue by the character
+ device driver.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/mode
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The work queue mode type for this work queue.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/priority
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The priority value of this work queue, it is a vlue relative to
+ other work queue in the same group to control quality of service
+ for dispatching work from multiple workqueues in the same group.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/state
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The current state of the work queue.
+
+What: sys/bus/dsa/devices/wq<m>.<n>/threshold
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The number of entries in this work queue that may be filled
+ via a limited portal.
+
+What: sys/bus/dsa/devices/engine<m>.<n>/group_id
+Date: Oct 25, 2019
+KernelVersion: 5.6.0
+Contact: dmaengine@vger.kernel.org
+Description: The group that this engine belongs to.
diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
index 8ca498447aeb..b0d90cc696a8 100644
--- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io
+++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
@@ -1,5 +1,4 @@
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
-
Date: June 2018
KernelVersion: 4.19
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -19,7 +18,6 @@ Description: These files show with which CPLD versions have been burned
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
-
Date: December 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -29,18 +27,16 @@ Description: This file shows the system fans direction:
The files are read only.
-What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
-
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show with which CPLD versions have been burned
- on LED board.
+ on LED or Gearbox board.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
-
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -108,7 +104,6 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_pwr_fail
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_comex
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
-
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -121,6 +116,21 @@ Description: These files show the system reset cause, as following: ComEx
The files are read only.
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
+Date: November 2018
+KernelVersion: 5.0
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: These files show with which CPLD versions have been burned
+ on LED board.
+
+ The files are read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
Date: June 2019
KernelVersion: 5.3
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -134,9 +144,65 @@ Description: These files show the system reset cause, as following:
The files are read only.
-What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
-What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
-What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
-What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
-What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
-What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: These files show system static topology identification
+ like system's static I2C topology, number and type of FPGA
+ devices within the system and so on.
+
+ The files are read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_ac_pwr_fail
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_platform
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: These files show the system reset causes, as following: reset
+ due to AC power failure, reset invoked from software by
+ assertion reset signal through CPLD. reset caused by signal
+ asserted by SOC through ACPI register, reset invoked from
+ software by assertion power off signal through CPLD.
+
+ The files are read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: This file allows to retain ASIC up during PCIe root complex
+ reset, when attribute is set 1.
+
+ The file is read/write.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: This file allows to overwrite system VPD hardware wrtie
+ protection when attribute is set 1.
+
+ The file is read/write.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: This file exposes the configuration update status of burnable
+ voltage regulator devices. The status values are as following:
+ 0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimpmellanox.com>
+Description: This file exposes the firmware version of burnable voltage
+ regulator devices.
+
+ The file is read only.
diff --git a/Documentation/ABI/testing/configfs-usb-gadget b/Documentation/ABI/testing/configfs-usb-gadget
index 95a36589a66b..4594cc2435e8 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget
+++ b/Documentation/ABI/testing/configfs-usb-gadget
@@ -16,6 +16,10 @@ Description:
write UDC's name found in /sys/class/udc/*
to bind a gadget, empty string "" to unbind.
+ max_speed - maximum speed the driver supports. Valid
+ names are super-speed-plus, super-speed,
+ high-speed, full-speed, and low-speed.
+
bDeviceClass - USB device class code
bDeviceSubClass - USB device subclass code
bDeviceProtocol - USB device protocol code
diff --git a/Documentation/ABI/testing/ima_policy b/Documentation/ABI/testing/ima_policy
index 29aaedf33246..cd572912c593 100644
--- a/Documentation/ABI/testing/ima_policy
+++ b/Documentation/ABI/testing/ima_policy
@@ -25,11 +25,11 @@ Description:
lsm: [[subj_user=] [subj_role=] [subj_type=]
[obj_user=] [obj_role=] [obj_type=]]
option: [[appraise_type=]] [template=] [permit_directio]
- [appraise_flag=]
+ [appraise_flag=] [keyrings=]
base: func:= [BPRM_CHECK][MMAP_CHECK][CREDS_CHECK][FILE_CHECK][MODULE_CHECK]
[FIRMWARE_CHECK]
[KEXEC_KERNEL_CHECK] [KEXEC_INITRAMFS_CHECK]
- [KEXEC_CMDLINE]
+ [KEXEC_CMDLINE] [KEY_CHECK]
mask:= [[^]MAY_READ] [[^]MAY_WRITE] [[^]MAY_APPEND]
[[^]MAY_EXEC]
fsmagic:= hex value
@@ -42,6 +42,9 @@ Description:
appraise_flag:= [check_blacklist]
Currently, blacklist check is only for files signed with appended
signature.
+ keyrings:= list of keyrings
+ (eg, .builtin_trusted_keys|.ima). Only valid
+ when action is "measure" and func is KEY_CHECK.
template:= name of a defined IMA template type
(eg, ima-ng). Only valid when action is "measure".
pcr:= decimal value
@@ -113,3 +116,12 @@ Description:
Example of appraise rule allowing modsig appended signatures:
appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig
+
+ Example of measure rule using KEY_CHECK to measure all keys:
+
+ measure func=KEY_CHECK
+
+ Example of measure rule using KEY_CHECK to only measure
+ keys added to .builtin_trusted_keys or .ima keyring:
+
+ measure func=KEY_CHECK keyrings=.builtin_trusted_keys|.ima
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index faaa2166d741..d3e53a6d8331 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1726,3 +1726,16 @@ Contact: linux-iio@vger.kernel.org
Description:
List of valid periods (in seconds) for which the light intensity
must be above the threshold level before interrupt is asserted.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
+KernelVersion: 5.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ Center frequency in Hz for a notch filter. Used i.e. for line
+ noise suppression.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_temp_thermocouple_type
+KernelVersion: 5.5
+Contact: linux-iio@vger.kernel.org
+Description:
+ One of the following thermocouple types: B, E, J, K, N, R, S, T.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer b/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer
new file mode 100644
index 000000000000..d526e6571001
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dma-buffer
@@ -0,0 +1,19 @@
+What: /sys/bus/iio/devices/iio:deviceX/buffer/length_align_bytes
+KernelVersion: 5.4
+Contact: linux-iio@vger.kernel.org
+Description:
+ DMA buffers tend to have a alignment requirement for the
+ buffers. If this alignment requirement is not met samples might
+ be dropped from the buffer.
+
+ This property reports the alignment requirements in bytes.
+ This means that the buffer size in bytes needs to be a integer
+ multiple of the number reported by this file.
+
+ The alignment requirements in number of sample sets will depend
+ on the enabled channels and the bytes per channel. This means
+ that the alignment requirement in samples sets might change
+ depending on which and how many channels are enabled. Whereas
+ the alignment requirement reported in bytes by this property
+ will remain static and does not depend on which channels are
+ enabled.
diff --git a/Documentation/ABI/testing/sysfs-bus-mdio b/Documentation/ABI/testing/sysfs-bus-mdio
new file mode 100644
index 000000000000..da86efc7781b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-mdio
@@ -0,0 +1,63 @@
+What: /sys/bus/mdio_bus/devices/.../statistics/
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ This folder contains statistics about global and per
+ MDIO bus address statistics.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/transfers
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of transfers for this MDIO bus.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/errors
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of transfer errors for this MDIO bus.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/writes
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of write transactions for this MDIO bus.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/reads
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of read transactions for this MDIO bus.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/transfers_<addr>
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of transfers for this MDIO bus address.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/errors_<addr>
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of transfer errors for this MDIO bus address.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/writes_<addr>
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of write transactions for this MDIO bus address.
+
+What: /sys/bus/mdio_bus/devices/.../statistics/reads_<addr>
+Date: January 2020
+KernelVersion: 5.6
+Contact: netdev@vger.kernel.org
+Description:
+ Total number of read transactions for this MDIO bus address.
diff --git a/Documentation/ABI/testing/sysfs-class-devfreq b/Documentation/ABI/testing/sysfs-class-devfreq
index 01196e19afca..9758eb85ade3 100644
--- a/Documentation/ABI/testing/sysfs-class-devfreq
+++ b/Documentation/ABI/testing/sysfs-class-devfreq
@@ -7,6 +7,13 @@ Description:
The name of devfreq object denoted as ... is same as the
name of device using devfreq.
+What: /sys/class/devfreq/.../name
+Date: November 2019
+Contact: Chanwoo Choi <cw00.choi@samsung.com>
+Description:
+ The /sys/class/devfreq/.../name shows the name of device
+ of the corresponding devfreq object.
+
What: /sys/class/devfreq/.../governor
Date: September 2011
Contact: MyungJoo Ham <myungjoo.ham@samsung.com>
@@ -48,12 +55,15 @@ What: /sys/class/devfreq/.../trans_stat
Date: October 2012
Contact: MyungJoo Ham <myungjoo.ham@samsung.com>
Description:
- This ABI shows the statistics of devfreq behavior on a
- specific device. It shows the time spent in each state and
- the number of transitions between states.
+ This ABI shows or clears the statistics of devfreq behavior
+ on a specific device. It shows the time spent in each state
+ and the number of transitions between states.
In order to activate this ABI, the devfreq target device
driver should provide the list of available frequencies
- with its profile.
+ with its profile. If need to reset the statistics of devfreq
+ behavior on a specific device, enter 0(zero) to 'trans_stat'
+ as following:
+ echo 0 > /sys/class/devfreq/.../trans_stat
What: /sys/class/devfreq/.../userspace/set_freq
Date: September 2011
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 27edc06e2495..bf3b48f022dc 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -189,7 +189,8 @@ Description:
Access: Read
Valid values: "Unknown", "Good", "Overheat", "Dead",
"Over voltage", "Unspecified failure", "Cold",
- "Watchdog timer expire", "Safety timer expire"
+ "Watchdog timer expire", "Safety timer expire",
+ "Over current"
What: /sys/class/power_supply/<supply_name>/precharge_current
Date: June 2017
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index fc20cde63d1e..2e0e3b45d02a 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -196,6 +196,12 @@ Description:
does not reflect it. Likewise, if one enables a deep state but a
lighter state still is disabled, then this has no effect.
+What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/default_status
+Date: December 2019
+KernelVersion: v5.6
+Contact: Linux power management list <linux-pm@vger.kernel.org>
+Description:
+ (RO) The default status of this state, "enabled" or "disabled".
What: /sys/devices/system/cpu/cpuX/cpuidle/stateN/residency
Date: March 2014
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 9e99f2909612..1efac0ddb417 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -46,3 +46,13 @@ Description:
* 0 - normal,
* 1 - overboost,
* 2 - silent
+
+What: /sys/devices/platform/<platform>/throttle_thermal_policy
+Date: Dec 2019
+KernelVersion: 5.6
+Contact: "Leonid Maksymchuk" <leonmaxx@gmail.com>
+Description:
+ Throttle thermal policy mode:
+ * 0 - default,
+ * 1 - overboost,
+ * 2 - silent
diff --git a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
index c65a80574869..401d202f478b 100644
--- a/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
+++ b/Documentation/ABI/testing/sysfs-platform-mellanox-bootctl
@@ -1,4 +1,4 @@
-What: /sys/bus/platform/devices/MLNXBF04:00/driver/lifecycle_state
+What: /sys/bus/platform/devices/MLNXBF04:00/lifecycle_state
Date: Oct 2019
KernelVersion: 5.5
Contact: "Liming Sun <lsun@mellanox.com>"
@@ -10,7 +10,7 @@ Description:
GA Non-Secured - Non-Secure chip and not able to change state
RMA - Return Merchandise Authorization
-What: /sys/bus/platform/devices/MLNXBF04:00/driver/post_reset_wdog
+What: /sys/bus/platform/devices/MLNXBF04:00/post_reset_wdog
Date: Oct 2019
KernelVersion: 5.5
Contact: "Liming Sun <lsun@mellanox.com>"
@@ -19,7 +19,7 @@ Description:
to reboot the chip and recover it to the old state if the new
boot partition fails.
-What: /sys/bus/platform/devices/MLNXBF04:00/driver/reset_action
+What: /sys/bus/platform/devices/MLNXBF04:00/reset_action
Date: Oct 2019
KernelVersion: 5.5
Contact: "Liming Sun <lsun@mellanox.com>"
@@ -30,7 +30,7 @@ Description:
emmc - boot from the onchip eMMC
emmc_legacy - boot from the onchip eMMC in legacy (slow) mode
-What: /sys/bus/platform/devices/MLNXBF04:00/driver/second_reset_action
+What: /sys/bus/platform/devices/MLNXBF04:00/second_reset_action
Date: Oct 2019
KernelVersion: 5.5
Contact: "Liming Sun <lsun@mellanox.com>"
@@ -44,7 +44,7 @@ Description:
swap_emmc - swap the primary / secondary boot partition
none - cancel the action
-What: /sys/bus/platform/devices/MLNXBF04:00/driver/secure_boot_fuse_state
+What: /sys/bus/platform/devices/MLNXBF04:00/secure_boot_fuse_state
Date: Oct 2019
KernelVersion: 5.5
Contact: "Liming Sun <lsun@mellanox.com>"
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 6f87b9dd384b..5e6ead29124c 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -407,3 +407,16 @@ Contact: Kalesh Singh <kaleshsingh96@gmail.com>
Description:
The /sys/power/suspend_stats/last_failed_step file contains
the last failed step in the suspend/resume path.
+
+What: /sys/power/sync_on_suspend
+Date: October 2019
+Contact: Jonas Meurer <jonas@freesources.org>
+Description:
+ This file controls whether or not the kernel will sync()
+ filesystems during system suspend (after freezing user space
+ and before suspending devices).
+
+ Writing a "1" to this file enables the sync() and writing a "0"
+ disables it. Reads from the file return the current value.
+ The default is "1" if the build-time "SUSPEND_SKIP_SYNC" config
+ flag is unset, or "0" otherwise.
diff --git a/Documentation/ABI/testing/usb-charger-uevent b/Documentation/ABI/testing/usb-charger-uevent
new file mode 100644
index 000000000000..419a92dd0d86
--- /dev/null
+++ b/Documentation/ABI/testing/usb-charger-uevent
@@ -0,0 +1,46 @@
+What: Raise a uevent when a USB charger is inserted or removed
+Date: 2020-01-14
+KernelVersion: 5.6
+Contact: linux-usb@vger.kernel.org
+Description: There are two USB charger states:
+ USB_CHARGER_ABSENT
+ USB_CHARGER_PRESENT
+ There are five USB charger types:
+ USB_CHARGER_UNKNOWN_TYPE: Charger type is unknown
+ USB_CHARGER_SDP_TYPE: Standard Downstream Port
+ USB_CHARGER_CDP_TYPE: Charging Downstream Port
+ USB_CHARGER_DCP_TYPE: Dedicated Charging Port
+ USB_CHARGER_ACA_TYPE: Accessory Charging Adapter
+ https://www.usb.org/document-library/battery-charging-v12-spec-and-adopters-agreement
+
+ Here are two examples taken using udevadm monitor -p when
+ USB charger is online:
+ UDEV change /devices/soc0/usbphynop1 (platform)
+ ACTION=change
+ DEVPATH=/devices/soc0/usbphynop1
+ DRIVER=usb_phy_generic
+ MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv
+ OF_COMPATIBLE_0=usb-nop-xceiv
+ OF_COMPATIBLE_N=1
+ OF_FULLNAME=/usbphynop1
+ OF_NAME=usbphynop1
+ SEQNUM=2493
+ SUBSYSTEM=platform
+ USB_CHARGER_STATE=USB_CHARGER_PRESENT
+ USB_CHARGER_TYPE=USB_CHARGER_SDP_TYPE
+ USEC_INITIALIZED=227422826
+
+ USB charger is offline:
+ KERNEL change /devices/soc0/usbphynop1 (platform)
+ ACTION=change
+ DEVPATH=/devices/soc0/usbphynop1
+ DRIVER=usb_phy_generic
+ MODALIAS=of:Nusbphynop1T(null)Cusb-nop-xceiv
+ OF_COMPATIBLE_0=usb-nop-xceiv
+ OF_COMPATIBLE_N=1
+ OF_FULLNAME=/usbphynop1
+ OF_NAME=usbphynop1
+ SEQNUM=2494
+ SUBSYSTEM=platform
+ USB_CHARGER_STATE=USB_CHARGER_ABSENT
+ USB_CHARGER_TYPE=USB_CHARGER_UNKNOWN_TYPE
diff --git a/Documentation/RCU/NMI-RCU.txt b/Documentation/RCU/NMI-RCU.rst
index 881353fd5bff..180958388ff9 100644
--- a/Documentation/RCU/NMI-RCU.txt
+++ b/Documentation/RCU/NMI-RCU.rst
@@ -1,4 +1,7 @@
+.. _NMI_rcu_doc:
+
Using RCU to Protect Dynamic NMI Handlers
+=========================================
Although RCU is usually used to protect read-mostly data structures,
@@ -9,7 +12,7 @@ work in "arch/x86/oprofile/nmi_timer_int.c" and in
"arch/x86/kernel/traps.c".
The relevant pieces of code are listed below, each followed by a
-brief explanation.
+brief explanation::
static int dummy_nmi_callback(struct pt_regs *regs, int cpu)
{
@@ -18,12 +21,12 @@ brief explanation.
The dummy_nmi_callback() function is a "dummy" NMI handler that does
nothing, but returns zero, thus saying that it did nothing, allowing
-the NMI handler to take the default machine-specific action.
+the NMI handler to take the default machine-specific action::
static nmi_callback_t nmi_callback = dummy_nmi_callback;
This nmi_callback variable is a global function pointer to the current
-NMI handler.
+NMI handler::
void do_nmi(struct pt_regs * regs, long error_code)
{
@@ -53,11 +56,12 @@ anyway. However, in practice it is a good documentation aid, particularly
for anyone attempting to do something similar on Alpha or on systems
with aggressive optimizing compilers.
-Quick Quiz: Why might the rcu_dereference_sched() be necessary on Alpha,
- given that the code referenced by the pointer is read-only?
+Quick Quiz:
+ Why might the rcu_dereference_sched() be necessary on Alpha, given that the code referenced by the pointer is read-only?
+:ref:`Answer to Quick Quiz <answer_quick_quiz_NMI>`
-Back to the discussion of NMI and RCU...
+Back to the discussion of NMI and RCU::
void set_nmi_callback(nmi_callback_t callback)
{
@@ -68,7 +72,7 @@ The set_nmi_callback() function registers an NMI handler. Note that any
data that is to be used by the callback must be initialized up -before-
the call to set_nmi_callback(). On architectures that do not order
writes, the rcu_assign_pointer() ensures that the NMI handler sees the
-initialized values.
+initialized values::
void unset_nmi_callback(void)
{
@@ -82,7 +86,7 @@ up any data structures used by the old NMI handler until execution
of it completes on all other CPUs.
One way to accomplish this is via synchronize_rcu(), perhaps as
-follows:
+follows::
unset_nmi_callback();
synchronize_rcu();
@@ -98,24 +102,23 @@ to free up the handler's data as soon as synchronize_rcu() returns.
Important note: for this to work, the architecture in question must
invoke nmi_enter() and nmi_exit() on NMI entry and exit, respectively.
+.. _answer_quick_quiz_NMI:
-Answer to Quick Quiz
-
- Why might the rcu_dereference_sched() be necessary on Alpha, given
- that the code referenced by the pointer is read-only?
+Answer to Quick Quiz:
+ Why might the rcu_dereference_sched() be necessary on Alpha, given that the code referenced by the pointer is read-only?
- Answer: The caller to set_nmi_callback() might well have
- initialized some data that is to be used by the new NMI
- handler. In this case, the rcu_dereference_sched() would
- be needed, because otherwise a CPU that received an NMI
- just after the new handler was set might see the pointer
- to the new NMI handler, but the old pre-initialized
- version of the handler's data.
+ The caller to set_nmi_callback() might well have
+ initialized some data that is to be used by the new NMI
+ handler. In this case, the rcu_dereference_sched() would
+ be needed, because otherwise a CPU that received an NMI
+ just after the new handler was set might see the pointer
+ to the new NMI handler, but the old pre-initialized
+ version of the handler's data.
- This same sad story can happen on other CPUs when using
- a compiler with aggressive pointer-value speculation
- optimizations.
+ This same sad story can happen on other CPUs when using
+ a compiler with aggressive pointer-value speculation
+ optimizations.
- More important, the rcu_dereference_sched() makes it
- clear to someone reading the code that the pointer is
- being protected by RCU-sched.
+ More important, the rcu_dereference_sched() makes it
+ clear to someone reading the code that the pointer is
+ being protected by RCU-sched.
diff --git a/Documentation/RCU/arrayRCU.txt b/Documentation/RCU/arrayRCU.rst
index f05a9afb2c39..4051ea3871ef 100644
--- a/Documentation/RCU/arrayRCU.txt
+++ b/Documentation/RCU/arrayRCU.rst
@@ -1,19 +1,21 @@
-Using RCU to Protect Read-Mostly Arrays
+.. _array_rcu_doc:
+Using RCU to Protect Read-Mostly Arrays
+=======================================
Although RCU is more commonly used to protect linked lists, it can
also be used to protect arrays. Three situations are as follows:
-1. Hash Tables
+1. :ref:`Hash Tables <hash_tables>`
-2. Static Arrays
+2. :ref:`Static Arrays <static_arrays>`
-3. Resizeable Arrays
+3. :ref:`Resizable Arrays <resizable_arrays>`
Each of these three situations involves an RCU-protected pointer to an
array that is separately indexed. It might be tempting to consider use
of RCU to instead protect the index into an array, however, this use
-case is -not- supported. The problem with RCU-protected indexes into
+case is **not** supported. The problem with RCU-protected indexes into
arrays is that compilers can play way too many optimization games with
integers, which means that the rules governing handling of these indexes
are far more trouble than they are worth. If RCU-protected indexes into
@@ -24,16 +26,20 @@ to be safely used.
That aside, each of the three RCU-protected pointer situations are
described in the following sections.
+.. _hash_tables:
Situation 1: Hash Tables
+------------------------
Hash tables are often implemented as an array, where each array entry
has a linked-list hash chain. Each hash chain can be protected by RCU
as described in the listRCU.txt document. This approach also applies
to other array-of-list situations, such as radix trees.
+.. _static_arrays:
Situation 2: Static Arrays
+--------------------------
Static arrays, where the data (rather than a pointer to the data) is
located in each array element, and where the array is never resized,
@@ -41,13 +47,17 @@ have not been used with RCU. Rik van Riel recommends using seqlock in
this situation, which would also have minimal read-side overhead as long
as updates are rare.
-Quick Quiz: Why is it so important that updates be rare when
- using seqlock?
+Quick Quiz:
+ Why is it so important that updates be rare when using seqlock?
+
+:ref:`Answer to Quick Quiz <answer_quick_quiz_seqlock>`
+.. _resizable_arrays:
-Situation 3: Resizeable Arrays
+Situation 3: Resizable Arrays
+------------------------------
-Use of RCU for resizeable arrays is demonstrated by the grow_ary()
+Use of RCU for resizable arrays is demonstrated by the grow_ary()
function formerly used by the System V IPC code. The array is used
to map from semaphore, message-queue, and shared-memory IDs to the data
structure that represents the corresponding IPC construct. The grow_ary()
@@ -60,7 +70,7 @@ the remainder of the new, updates the ids->entries pointer to point to
the new array, and invokes ipc_rcu_putref() to free up the old array.
Note that rcu_assign_pointer() is used to update the ids->entries pointer,
which includes any memory barriers required on whatever architecture
-you are running on.
+you are running on::
static int grow_ary(struct ipc_ids* ids, int newsize)
{
@@ -112,7 +122,7 @@ a simple check suffices. The pointer to the structure corresponding
to the desired IPC object is placed in "out", with NULL indicating
a non-existent entry. After acquiring "out->lock", the "out->deleted"
flag indicates whether the IPC object is in the process of being
-deleted, and, if not, the pointer is returned.
+deleted, and, if not, the pointer is returned::
struct kern_ipc_perm* ipc_lock(struct ipc_ids* ids, int id)
{
@@ -144,8 +154,10 @@ deleted, and, if not, the pointer is returned.
return out;
}
+.. _answer_quick_quiz_seqlock:
Answer to Quick Quiz:
+ Why is it so important that updates be rare when using seqlock?
The reason that it is important that updates be rare when
using seqlock is that frequent updates can livelock readers.
diff --git a/Documentation/RCU/index.rst b/Documentation/RCU/index.rst
index 5c99185710fa..81a0a1e5f767 100644
--- a/Documentation/RCU/index.rst
+++ b/Documentation/RCU/index.rst
@@ -7,8 +7,13 @@ RCU concepts
.. toctree::
:maxdepth: 3
+ arrayRCU
+ rcubarrier
+ rcu_dereference
+ whatisRCU
rcu
listRCU
+ NMI-RCU
UP
Design/Memory-Ordering/Tree-RCU-Memory-Ordering
diff --git a/Documentation/RCU/lockdep-splat.txt b/Documentation/RCU/lockdep-splat.txt
index 9c015976b174..b8096316fd11 100644
--- a/Documentation/RCU/lockdep-splat.txt
+++ b/Documentation/RCU/lockdep-splat.txt
@@ -99,7 +99,7 @@ With this change, the rcu_dereference() is always within an RCU
read-side critical section, which again would have suppressed the
above lockdep-RCU splat.
-But in this particular case, we don't actually deference the pointer
+But in this particular case, we don't actually dereference the pointer
returned from rcu_dereference(). Instead, that pointer is just compared
to the cic pointer, which means that the rcu_dereference() can be replaced
by rcu_access_pointer() as follows:
diff --git a/Documentation/RCU/rcu_dereference.txt b/Documentation/RCU/rcu_dereference.rst
index bf699e8cfc75..c9667eb0d444 100644
--- a/Documentation/RCU/rcu_dereference.txt
+++ b/Documentation/RCU/rcu_dereference.rst
@@ -1,4 +1,7 @@
+.. _rcu_dereference_doc:
+
PROPER CARE AND FEEDING OF RETURN VALUES FROM rcu_dereference()
+===============================================================
Most of the time, you can use values from rcu_dereference() or one of
the similar primitives without worries. Dereferencing (prefix "*"),
@@ -8,7 +11,7 @@ subtraction of constants, and casts all work quite naturally and safely.
It is nevertheless possible to get into trouble with other operations.
Follow these rules to keep your RCU code working properly:
-o You must use one of the rcu_dereference() family of primitives
+- You must use one of the rcu_dereference() family of primitives
to load an RCU-protected pointer, otherwise CONFIG_PROVE_RCU
will complain. Worse yet, your code can see random memory-corruption
bugs due to games that compilers and DEC Alpha can play.
@@ -25,24 +28,24 @@ o You must use one of the rcu_dereference() family of primitives
for an example where the compiler can in fact deduce the exact
value of the pointer, and thus cause misordering.
-o You are only permitted to use rcu_dereference on pointer values.
+- You are only permitted to use rcu_dereference on pointer values.
The compiler simply knows too much about integral values to
trust it to carry dependencies through integer operations.
There are a very few exceptions, namely that you can temporarily
cast the pointer to uintptr_t in order to:
- o Set bits and clear bits down in the must-be-zero low-order
+ - Set bits and clear bits down in the must-be-zero low-order
bits of that pointer. This clearly means that the pointer
must have alignment constraints, for example, this does
-not- work in general for char* pointers.
- o XOR bits to translate pointers, as is done in some
+ - XOR bits to translate pointers, as is done in some
classic buddy-allocator algorithms.
It is important to cast the value back to pointer before
doing much of anything else with it.
-o Avoid cancellation when using the "+" and "-" infix arithmetic
+- Avoid cancellation when using the "+" and "-" infix arithmetic
operators. For example, for a given variable "x", avoid
"(x-(uintptr_t)x)" for char* pointers. The compiler is within its
rights to substitute zero for this sort of expression, so that
@@ -54,16 +57,16 @@ o Avoid cancellation when using the "+" and "-" infix arithmetic
"p+a-b" is safe because its value still necessarily depends on
the rcu_dereference(), thus maintaining proper ordering.
-o If you are using RCU to protect JITed functions, so that the
+- If you are using RCU to protect JITed functions, so that the
"()" function-invocation operator is applied to a value obtained
(directly or indirectly) from rcu_dereference(), you may need to
interact directly with the hardware to flush instruction caches.
This issue arises on some systems when a newly JITed function is
using the same memory that was used by an earlier JITed function.
-o Do not use the results from relational operators ("==", "!=",
+- Do not use the results from relational operators ("==", "!=",
">", ">=", "<", or "<=") when dereferencing. For example,
- the following (quite strange) code is buggy:
+ the following (quite strange) code is buggy::
int *p;
int *q;
@@ -81,11 +84,11 @@ o Do not use the results from relational operators ("==", "!=",
after such branches, but can speculate loads, which can again
result in misordering bugs.
-o Be very careful about comparing pointers obtained from
+- Be very careful about comparing pointers obtained from
rcu_dereference() against non-NULL values. As Linus Torvalds
explained, if the two pointers are equal, the compiler could
substitute the pointer you are comparing against for the pointer
- obtained from rcu_dereference(). For example:
+ obtained from rcu_dereference(). For example::
p = rcu_dereference(gp);
if (p == &default_struct)
@@ -93,7 +96,7 @@ o Be very careful about comparing pointers obtained from
Because the compiler now knows that the value of "p" is exactly
the address of the variable "default_struct", it is free to
- transform this code into the following:
+ transform this code into the following::
p = rcu_dereference(gp);
if (p == &default_struct)
@@ -105,14 +108,14 @@ o Be very careful about comparing pointers obtained from
However, comparisons are OK in the following cases:
- o The comparison was against the NULL pointer. If the
+ - The comparison was against the NULL pointer. If the
compiler knows that the pointer is NULL, you had better
not be dereferencing it anyway. If the comparison is
non-equal, the compiler is none the wiser. Therefore,
it is safe to compare pointers from rcu_dereference()
against NULL pointers.
- o The pointer is never dereferenced after being compared.
+ - The pointer is never dereferenced after being compared.
Since there are no subsequent dereferences, the compiler
cannot use anything it learned from the comparison
to reorder the non-existent subsequent dereferences.
@@ -124,31 +127,31 @@ o Be very careful about comparing pointers obtained from
dereferenced, rcu_access_pointer() should be used in place
of rcu_dereference().
- o The comparison is against a pointer that references memory
+ - The comparison is against a pointer that references memory
that was initialized "a long time ago." The reason
this is safe is that even if misordering occurs, the
misordering will not affect the accesses that follow
the comparison. So exactly how long ago is "a long
time ago"? Here are some possibilities:
- o Compile time.
+ - Compile time.
- o Boot time.
+ - Boot time.
- o Module-init time for module code.
+ - Module-init time for module code.
- o Prior to kthread creation for kthread code.
+ - Prior to kthread creation for kthread code.
- o During some prior acquisition of the lock that
+ - During some prior acquisition of the lock that
we now hold.
- o Before mod_timer() time for a timer handler.
+ - Before mod_timer() time for a timer handler.
There are many other possibilities involving the Linux
kernel's wide array of primitives that cause code to
be invoked at a later time.
- o The pointer being compared against also came from
+ - The pointer being compared against also came from
rcu_dereference(). In this case, both pointers depend
on one rcu_dereference() or another, so you get proper
ordering either way.
@@ -159,13 +162,13 @@ o Be very careful about comparing pointers obtained from
of such an RCU usage bug is shown in the section titled
"EXAMPLE OF AMPLIFIED RCU-USAGE BUG".
- o All of the accesses following the comparison are stores,
+ - All of the accesses following the comparison are stores,
so that a control dependency preserves the needed ordering.
That said, it is easy to get control dependencies wrong.
Please see the "CONTROL DEPENDENCIES" section of
Documentation/memory-barriers.txt for more details.
- o The pointers are not equal -and- the compiler does
+ - The pointers are not equal -and- the compiler does
not have enough information to deduce the value of the
pointer. Note that the volatile cast in rcu_dereference()
will normally prevent the compiler from knowing too much.
@@ -175,7 +178,7 @@ o Be very careful about comparing pointers obtained from
comparison will provide exactly the information that the
compiler needs to deduce the value of the pointer.
-o Disable any value-speculation optimizations that your compiler
+- Disable any value-speculation optimizations that your compiler
might provide, especially if you are making use of feedback-based
optimizations that take data collected from prior runs. Such
value-speculation optimizations reorder operations by design.
@@ -188,11 +191,12 @@ o Disable any value-speculation optimizations that your compiler
EXAMPLE OF AMPLIFIED RCU-USAGE BUG
+----------------------------------
Because updaters can run concurrently with RCU readers, RCU readers can
see stale and/or inconsistent values. If RCU readers need fresh or
consistent values, which they sometimes do, they need to take proper
-precautions. To see this, consider the following code fragment:
+precautions. To see this, consider the following code fragment::
struct foo {
int a;
@@ -244,7 +248,7 @@ to some reordering from the compiler and CPUs is beside the point.
But suppose that the reader needs a consistent view?
-Then one approach is to use locking, for example, as follows:
+Then one approach is to use locking, for example, as follows::
struct foo {
int a;
@@ -299,6 +303,7 @@ As always, use the right tool for the job!
EXAMPLE WHERE THE COMPILER KNOWS TOO MUCH
+-----------------------------------------
If a pointer obtained from rcu_dereference() compares not-equal to some
other pointer, the compiler normally has no clue what the value of the
@@ -308,7 +313,7 @@ guarantees that RCU depends on. And the volatile cast in rcu_dereference()
should prevent the compiler from guessing the value.
But without rcu_dereference(), the compiler knows more than you might
-expect. Consider the following code fragment:
+expect. Consider the following code fragment::
struct foo {
int a;
@@ -354,6 +359,7 @@ dereference the resulting pointer.
WHICH MEMBER OF THE rcu_dereference() FAMILY SHOULD YOU USE?
+------------------------------------------------------------
First, please avoid using rcu_dereference_raw() and also please avoid
using rcu_dereference_check() and rcu_dereference_protected() with a
@@ -370,7 +376,7 @@ member of the rcu_dereference() to use in various situations:
2. If the access might be within an RCU read-side critical section
on the one hand, or protected by (say) my_lock on the other,
- use rcu_dereference_check(), for example:
+ use rcu_dereference_check(), for example::
p1 = rcu_dereference_check(p->rcu_protected_pointer,
lockdep_is_held(&my_lock));
@@ -378,14 +384,14 @@ member of the rcu_dereference() to use in various situations:
3. If the access might be within an RCU read-side critical section
on the one hand, or protected by either my_lock or your_lock on
- the other, again use rcu_dereference_check(), for example:
+ the other, again use rcu_dereference_check(), for example::
p1 = rcu_dereference_check(p->rcu_protected_pointer,
lockdep_is_held(&my_lock) ||
lockdep_is_held(&your_lock));
4. If the access is on the update side, so that it is always protected
- by my_lock, use rcu_dereference_protected():
+ by my_lock, use rcu_dereference_protected()::
p1 = rcu_dereference_protected(p->rcu_protected_pointer,
lockdep_is_held(&my_lock));
@@ -410,18 +416,19 @@ member of the rcu_dereference() to use in various situations:
SPARSE CHECKING OF RCU-PROTECTED POINTERS
+-----------------------------------------
The sparse static-analysis tool checks for direct access to RCU-protected
pointers, which can result in "interesting" bugs due to compiler
optimizations involving invented loads and perhaps also load tearing.
-For example, suppose someone mistakenly does something like this:
+For example, suppose someone mistakenly does something like this::
p = q->rcu_protected_pointer;
do_something_with(p->a);
do_something_else_with(p->b);
If register pressure is high, the compiler might optimize "p" out
-of existence, transforming the code to something like this:
+of existence, transforming the code to something like this::
do_something_with(q->rcu_protected_pointer->a);
do_something_else_with(q->rcu_protected_pointer->b);
@@ -435,7 +442,7 @@ Load tearing could of course result in dereferencing a mashup of a pair
of pointers, which also might fatally disappoint your code.
These problems could have been avoided simply by making the code instead
-read as follows:
+read as follows::
p = rcu_dereference(q->rcu_protected_pointer);
do_something_with(p->a);
@@ -448,7 +455,7 @@ or as a formal parameter, with "__rcu", which tells sparse to complain if
this pointer is accessed directly. It will also cause sparse to complain
if a pointer not marked with "__rcu" is accessed using rcu_dereference()
and friends. For example, ->rcu_protected_pointer might be declared as
-follows:
+follows::
struct foo __rcu *rcu_protected_pointer;
diff --git a/Documentation/RCU/rcubarrier.txt b/Documentation/RCU/rcubarrier.rst
index a2782df69732..f64f4413a47c 100644
--- a/Documentation/RCU/rcubarrier.txt
+++ b/Documentation/RCU/rcubarrier.rst
@@ -1,4 +1,7 @@
+.. _rcu_barrier:
+
RCU and Unloadable Modules
+==========================
[Originally published in LWN Jan. 14, 2007: http://lwn.net/Articles/217484/]
@@ -21,7 +24,7 @@ given that readers might well leave absolutely no trace of their
presence? There is a synchronize_rcu() primitive that blocks until all
pre-existing readers have completed. An updater wishing to delete an
element p from a linked list might do the following, while holding an
-appropriate lock, of course:
+appropriate lock, of course::
list_del_rcu(p);
synchronize_rcu();
@@ -32,13 +35,13 @@ primitive must be used instead. This primitive takes a pointer to an
rcu_head struct placed within the RCU-protected data structure and
another pointer to a function that may be invoked later to free that
structure. Code to delete an element p from the linked list from IRQ
-context might then be as follows:
+context might then be as follows::
list_del_rcu(p);
call_rcu(&p->rcu, p_callback);
Since call_rcu() never blocks, this code can safely be used from within
-IRQ context. The function p_callback() might be defined as follows:
+IRQ context. The function p_callback() might be defined as follows::
static void p_callback(struct rcu_head *rp)
{
@@ -49,6 +52,7 @@ IRQ context. The function p_callback() might be defined as follows:
Unloading Modules That Use call_rcu()
+-------------------------------------
But what if p_callback is defined in an unloadable module?
@@ -69,10 +73,11 @@ in realtime kernels in order to avoid excessive scheduling latencies.
rcu_barrier()
+-------------
We instead need the rcu_barrier() primitive. Rather than waiting for
a grace period to elapse, rcu_barrier() waits for all outstanding RCU
-callbacks to complete. Please note that rcu_barrier() does -not- imply
+callbacks to complete. Please note that rcu_barrier() does **not** imply
synchronize_rcu(), in particular, if there are no RCU callbacks queued
anywhere, rcu_barrier() is within its rights to return immediately,
without waiting for a grace period to elapse.
@@ -88,79 +93,79 @@ must match the flavor of rcu_barrier() with that of call_rcu(). If your
module uses multiple flavors of call_rcu(), then it must also use multiple
flavors of rcu_barrier() when unloading that module. For example, if
it uses call_rcu(), call_srcu() on srcu_struct_1, and call_srcu() on
-srcu_struct_2(), then the following three lines of code will be required
-when unloading:
+srcu_struct_2, then the following three lines of code will be required
+when unloading::
1 rcu_barrier();
2 srcu_barrier(&srcu_struct_1);
3 srcu_barrier(&srcu_struct_2);
The rcutorture module makes use of rcu_barrier() in its exit function
-as follows:
+as follows::
- 1 static void
- 2 rcu_torture_cleanup(void)
- 3 {
- 4 int i;
+ 1 static void
+ 2 rcu_torture_cleanup(void)
+ 3 {
+ 4 int i;
5
- 6 fullstop = 1;
- 7 if (shuffler_task != NULL) {
+ 6 fullstop = 1;
+ 7 if (shuffler_task != NULL) {
8 VERBOSE_PRINTK_STRING("Stopping rcu_torture_shuffle task");
9 kthread_stop(shuffler_task);
-10 }
-11 shuffler_task = NULL;
-12
-13 if (writer_task != NULL) {
-14 VERBOSE_PRINTK_STRING("Stopping rcu_torture_writer task");
-15 kthread_stop(writer_task);
-16 }
-17 writer_task = NULL;
-18
-19 if (reader_tasks != NULL) {
-20 for (i = 0; i < nrealreaders; i++) {
-21 if (reader_tasks[i] != NULL) {
-22 VERBOSE_PRINTK_STRING(
-23 "Stopping rcu_torture_reader task");
-24 kthread_stop(reader_tasks[i]);
-25 }
-26 reader_tasks[i] = NULL;
-27 }
-28 kfree(reader_tasks);
-29 reader_tasks = NULL;
-30 }
-31 rcu_torture_current = NULL;
-32
-33 if (fakewriter_tasks != NULL) {
-34 for (i = 0; i < nfakewriters; i++) {
-35 if (fakewriter_tasks[i] != NULL) {
-36 VERBOSE_PRINTK_STRING(
-37 "Stopping rcu_torture_fakewriter task");
-38 kthread_stop(fakewriter_tasks[i]);
-39 }
-40 fakewriter_tasks[i] = NULL;
-41 }
-42 kfree(fakewriter_tasks);
-43 fakewriter_tasks = NULL;
-44 }
-45
-46 if (stats_task != NULL) {
-47 VERBOSE_PRINTK_STRING("Stopping rcu_torture_stats task");
-48 kthread_stop(stats_task);
-49 }
-50 stats_task = NULL;
-51
-52 /* Wait for all RCU callbacks to fire. */
-53 rcu_barrier();
-54
-55 rcu_torture_stats_print(); /* -After- the stats thread is stopped! */
-56
-57 if (cur_ops->cleanup != NULL)
-58 cur_ops->cleanup();
-59 if (atomic_read(&n_rcu_torture_error))
-60 rcu_torture_print_module_parms("End of test: FAILURE");
-61 else
-62 rcu_torture_print_module_parms("End of test: SUCCESS");
-63 }
+ 10 }
+ 11 shuffler_task = NULL;
+ 12
+ 13 if (writer_task != NULL) {
+ 14 VERBOSE_PRINTK_STRING("Stopping rcu_torture_writer task");
+ 15 kthread_stop(writer_task);
+ 16 }
+ 17 writer_task = NULL;
+ 18
+ 19 if (reader_tasks != NULL) {
+ 20 for (i = 0; i < nrealreaders; i++) {
+ 21 if (reader_tasks[i] != NULL) {
+ 22 VERBOSE_PRINTK_STRING(
+ 23 "Stopping rcu_torture_reader task");
+ 24 kthread_stop(reader_tasks[i]);
+ 25 }
+ 26 reader_tasks[i] = NULL;
+ 27 }
+ 28 kfree(reader_tasks);
+ 29 reader_tasks = NULL;
+ 30 }
+ 31 rcu_torture_current = NULL;
+ 32
+ 33 if (fakewriter_tasks != NULL) {
+ 34 for (i = 0; i < nfakewriters; i++) {
+ 35 if (fakewriter_tasks[i] != NULL) {
+ 36 VERBOSE_PRINTK_STRING(
+ 37 "Stopping rcu_torture_fakewriter task");
+ 38 kthread_stop(fakewriter_tasks[i]);
+ 39 }
+ 40 fakewriter_tasks[i] = NULL;
+ 41 }
+ 42 kfree(fakewriter_tasks);
+ 43 fakewriter_tasks = NULL;
+ 44 }
+ 45
+ 46 if (stats_task != NULL) {
+ 47 VERBOSE_PRINTK_STRING("Stopping rcu_torture_stats task");
+ 48 kthread_stop(stats_task);
+ 49 }
+ 50 stats_task = NULL;
+ 51
+ 52 /* Wait for all RCU callbacks to fire. */
+ 53 rcu_barrier();
+ 54
+ 55 rcu_torture_stats_print(); /* -After- the stats thread is stopped! */
+ 56
+ 57 if (cur_ops->cleanup != NULL)
+ 58 cur_ops->cleanup();
+ 59 if (atomic_read(&n_rcu_torture_error))
+ 60 rcu_torture_print_module_parms("End of test: FAILURE");
+ 61 else
+ 62 rcu_torture_print_module_parms("End of test: SUCCESS");
+ 63 }
Line 6 sets a global variable that prevents any RCU callbacks from
re-posting themselves. This will not be necessary in most cases, since
@@ -176,9 +181,14 @@ for any pre-existing callbacks to complete.
Then lines 55-62 print status and do operation-specific cleanup, and
then return, permitting the module-unload operation to be completed.
-Quick Quiz #1: Is there any other situation where rcu_barrier() might
+.. _rcubarrier_quiz_1:
+
+Quick Quiz #1:
+ Is there any other situation where rcu_barrier() might
be required?
+:ref:`Answer to Quick Quiz #1 <answer_rcubarrier_quiz_1>`
+
Your module might have additional complications. For example, if your
module invokes call_rcu() from timers, you will need to first cancel all
the timers, and only then invoke rcu_barrier() to wait for any remaining
@@ -188,11 +198,12 @@ Of course, if you module uses call_rcu(), you will need to invoke
rcu_barrier() before unloading. Similarly, if your module uses
call_srcu(), you will need to invoke srcu_barrier() before unloading,
and on the same srcu_struct structure. If your module uses call_rcu()
--and- call_srcu(), then you will need to invoke rcu_barrier() -and-
+**and** call_srcu(), then you will need to invoke rcu_barrier() **and**
srcu_barrier().
Implementing rcu_barrier()
+--------------------------
Dipankar Sarma's implementation of rcu_barrier() makes use of the fact
that RCU callbacks are never reordered once queued on one of the per-CPU
@@ -200,19 +211,19 @@ queues. His implementation queues an RCU callback on each of the per-CPU
callback queues, and then waits until they have all started executing, at
which point, all earlier RCU callbacks are guaranteed to have completed.
-The original code for rcu_barrier() was as follows:
+The original code for rcu_barrier() was as follows::
- 1 void rcu_barrier(void)
- 2 {
- 3 BUG_ON(in_interrupt());
- 4 /* Take cpucontrol mutex to protect against CPU hotplug */
- 5 mutex_lock(&rcu_barrier_mutex);
- 6 init_completion(&rcu_barrier_completion);
- 7 atomic_set(&rcu_barrier_cpu_count, 0);
- 8 on_each_cpu(rcu_barrier_func, NULL, 0, 1);
- 9 wait_for_completion(&rcu_barrier_completion);
-10 mutex_unlock(&rcu_barrier_mutex);
-11 }
+ 1 void rcu_barrier(void)
+ 2 {
+ 3 BUG_ON(in_interrupt());
+ 4 /* Take cpucontrol mutex to protect against CPU hotplug */
+ 5 mutex_lock(&rcu_barrier_mutex);
+ 6 init_completion(&rcu_barrier_completion);
+ 7 atomic_set(&rcu_barrier_cpu_count, 0);
+ 8 on_each_cpu(rcu_barrier_func, NULL, 0, 1);
+ 9 wait_for_completion(&rcu_barrier_completion);
+ 10 mutex_unlock(&rcu_barrier_mutex);
+ 11 }
Line 3 verifies that the caller is in process context, and lines 5 and 10
use rcu_barrier_mutex to ensure that only one rcu_barrier() is using the
@@ -226,18 +237,18 @@ This code was rewritten in 2008 and several times thereafter, but this
still gives the general idea.
The rcu_barrier_func() runs on each CPU, where it invokes call_rcu()
-to post an RCU callback, as follows:
+to post an RCU callback, as follows::
- 1 static void rcu_barrier_func(void *notused)
- 2 {
- 3 int cpu = smp_processor_id();
- 4 struct rcu_data *rdp = &per_cpu(rcu_data, cpu);
- 5 struct rcu_head *head;
+ 1 static void rcu_barrier_func(void *notused)
+ 2 {
+ 3 int cpu = smp_processor_id();
+ 4 struct rcu_data *rdp = &per_cpu(rcu_data, cpu);
+ 5 struct rcu_head *head;
6
- 7 head = &rdp->barrier;
- 8 atomic_inc(&rcu_barrier_cpu_count);
- 9 call_rcu(head, rcu_barrier_callback);
-10 }
+ 7 head = &rdp->barrier;
+ 8 atomic_inc(&rcu_barrier_cpu_count);
+ 9 call_rcu(head, rcu_barrier_callback);
+ 10 }
Lines 3 and 4 locate RCU's internal per-CPU rcu_data structure,
which contains the struct rcu_head that needed for the later call to
@@ -248,20 +259,25 @@ the current CPU's queue.
The rcu_barrier_callback() function simply atomically decrements the
rcu_barrier_cpu_count variable and finalizes the completion when it
-reaches zero, as follows:
+reaches zero, as follows::
1 static void rcu_barrier_callback(struct rcu_head *notused)
2 {
- 3 if (atomic_dec_and_test(&rcu_barrier_cpu_count))
- 4 complete(&rcu_barrier_completion);
+ 3 if (atomic_dec_and_test(&rcu_barrier_cpu_count))
+ 4 complete(&rcu_barrier_completion);
5 }
-Quick Quiz #2: What happens if CPU 0's rcu_barrier_func() executes
+.. _rcubarrier_quiz_2:
+
+Quick Quiz #2:
+ What happens if CPU 0's rcu_barrier_func() executes
immediately (thus incrementing rcu_barrier_cpu_count to the
value one), but the other CPU's rcu_barrier_func() invocations
are delayed for a full grace period? Couldn't this result in
rcu_barrier() returning prematurely?
+:ref:`Answer to Quick Quiz #2 <answer_rcubarrier_quiz_2>`
+
The current rcu_barrier() implementation is more complex, due to the need
to avoid disturbing idle CPUs (especially on battery-powered systems)
and the need to minimally disturb non-idle CPUs in real-time systems.
@@ -269,6 +285,7 @@ However, the code above illustrates the concepts.
rcu_barrier() Summary
+---------------------
The rcu_barrier() primitive has seen relatively little use, since most
code using RCU is in the core kernel rather than in modules. However, if
@@ -277,8 +294,12 @@ so that your module may be safely unloaded.
Answers to Quick Quizzes
+------------------------
+
+.. _answer_rcubarrier_quiz_1:
-Quick Quiz #1: Is there any other situation where rcu_barrier() might
+Quick Quiz #1:
+ Is there any other situation where rcu_barrier() might
be required?
Answer: Interestingly enough, rcu_barrier() was not originally
@@ -292,7 +313,12 @@ Answer: Interestingly enough, rcu_barrier() was not originally
implementing rcutorture, and found that rcu_barrier() solves
this problem as well.
-Quick Quiz #2: What happens if CPU 0's rcu_barrier_func() executes
+:ref:`Back to Quick Quiz #1 <rcubarrier_quiz_1>`
+
+.. _answer_rcubarrier_quiz_2:
+
+Quick Quiz #2:
+ What happens if CPU 0's rcu_barrier_func() executes
immediately (thus incrementing rcu_barrier_cpu_count to the
value one), but the other CPU's rcu_barrier_func() invocations
are delayed for a full grace period? Couldn't this result in
@@ -323,3 +349,5 @@ Answer: This cannot happen. The reason is that on_each_cpu() has its last
is to add an rcu_read_lock() before line 8 of rcu_barrier()
and an rcu_read_unlock() after line 8 of this same function. If
you can think of a better change, please let me know!
+
+:ref:`Back to Quick Quiz #2 <rcubarrier_quiz_2>`
diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt
index f48f4621ccbc..a360a8796710 100644
--- a/Documentation/RCU/stallwarn.txt
+++ b/Documentation/RCU/stallwarn.txt
@@ -225,18 +225,13 @@ an estimate of the total number of RCU callbacks queued across all CPUs
In kernels with CONFIG_RCU_FAST_NO_HZ, more information is printed
for each CPU:
- 0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 Nonlazy posted: ..D
+ 0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 dyntick_enabled: 1
The "last_accelerate:" prints the low-order 16 bits (in hex) of the
jiffies counter when this CPU last invoked rcu_try_advance_all_cbs()
from rcu_needs_cpu() or last invoked rcu_accelerate_cbs() from
-rcu_prepare_for_idle(). The "Nonlazy posted:" indicates lazy-callback
-status, so that an "l" indicates that all callbacks were lazy at the start
-of the last idle period and an "L" indicates that there are currently
-no non-lazy callbacks (in both cases, "." is printed otherwise, as
-shown above) and "D" indicates that dyntick-idle processing is enabled
-("." is printed otherwise, for example, if disabled via the "nohz="
-kernel boot parameter).
+rcu_prepare_for_idle(). "dyntick_enabled: 1" indicates that dyntick-idle
+processing is enabled.
If the grace period ends just as the stall warning starts printing,
there will be a spurious stall-warning message, which will include
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.rst
index 58ba05c4d97f..c7f147b8034f 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.rst
@@ -1,15 +1,18 @@
+.. _whatisrcu_doc:
+
What is RCU? -- "Read, Copy, Update"
+======================================
Please note that the "What is RCU?" LWN series is an excellent place
to start learning about RCU:
-1. What is RCU, Fundamentally? http://lwn.net/Articles/262464/
-2. What is RCU? Part 2: Usage http://lwn.net/Articles/263130/
-3. RCU part 3: the RCU API http://lwn.net/Articles/264090/
-4. The RCU API, 2010 Edition http://lwn.net/Articles/418853/
- 2010 Big API Table http://lwn.net/Articles/419086/
-5. The RCU API, 2014 Edition http://lwn.net/Articles/609904/
- 2014 Big API Table http://lwn.net/Articles/609973/
+| 1. What is RCU, Fundamentally? http://lwn.net/Articles/262464/
+| 2. What is RCU? Part 2: Usage http://lwn.net/Articles/263130/
+| 3. RCU part 3: the RCU API http://lwn.net/Articles/264090/
+| 4. The RCU API, 2010 Edition http://lwn.net/Articles/418853/
+| 2010 Big API Table http://lwn.net/Articles/419086/
+| 5. The RCU API, 2014 Edition http://lwn.net/Articles/609904/
+| 2014 Big API Table http://lwn.net/Articles/609973/
What is RCU?
@@ -24,14 +27,21 @@ the experience has been that different people must take different paths
to arrive at an understanding of RCU. This document provides several
different paths, as follows:
-1. RCU OVERVIEW
-2. WHAT IS RCU'S CORE API?
-3. WHAT ARE SOME EXAMPLE USES OF CORE RCU API?
-4. WHAT IF MY UPDATING THREAD CANNOT BLOCK?
-5. WHAT ARE SOME SIMPLE IMPLEMENTATIONS OF RCU?
-6. ANALOGY WITH READER-WRITER LOCKING
-7. FULL LIST OF RCU APIs
-8. ANSWERS TO QUICK QUIZZES
+:ref:`1. RCU OVERVIEW <1_whatisRCU>`
+
+:ref:`2. WHAT IS RCU'S CORE API? <2_whatisRCU>`
+
+:ref:`3. WHAT ARE SOME EXAMPLE USES OF CORE RCU API? <3_whatisRCU>`
+
+:ref:`4. WHAT IF MY UPDATING THREAD CANNOT BLOCK? <4_whatisRCU>`
+
+:ref:`5. WHAT ARE SOME SIMPLE IMPLEMENTATIONS OF RCU? <5_whatisRCU>`
+
+:ref:`6. ANALOGY WITH READER-WRITER LOCKING <6_whatisRCU>`
+
+:ref:`7. FULL LIST OF RCU APIs <7_whatisRCU>`
+
+:ref:`8. ANSWERS TO QUICK QUIZZES <8_whatisRCU>`
People who prefer starting with a conceptual overview should focus on
Section 1, though most readers will profit by reading this section at
@@ -49,8 +59,10 @@ everything, feel free to read the whole thing -- but if you are really
that type of person, you have perused the source code and will therefore
never need this document anyway. ;-)
+.. _1_whatisRCU:
1. RCU OVERVIEW
+----------------
The basic idea behind RCU is to split updates into "removal" and
"reclamation" phases. The removal phase removes references to data items
@@ -116,8 +128,10 @@ So how the heck can a reclaimer tell when a reader is done, given
that readers are not doing any sort of synchronization operations???
Read on to learn about how RCU's API makes this easy.
+.. _2_whatisRCU:
2. WHAT IS RCU'S CORE API?
+---------------------------
The core RCU API is quite small:
@@ -136,7 +150,7 @@ later. See the kernel docbook documentation for more info, or look directly
at the function header comments.
rcu_read_lock()
-
+^^^^^^^^^^^^^^^
void rcu_read_lock(void);
Used by a reader to inform the reclaimer that the reader is
@@ -150,7 +164,7 @@ rcu_read_lock()
longer-term references to data structures.
rcu_read_unlock()
-
+^^^^^^^^^^^^^^^^^
void rcu_read_unlock(void);
Used by a reader to inform the reclaimer that the reader is
@@ -158,15 +172,15 @@ rcu_read_unlock()
read-side critical sections may be nested and/or overlapping.
synchronize_rcu()
-
+^^^^^^^^^^^^^^^^^
void synchronize_rcu(void);
Marks the end of updater code and the beginning of reclaimer
code. It does this by blocking until all pre-existing RCU
read-side critical sections on all CPUs have completed.
- Note that synchronize_rcu() will -not- necessarily wait for
+ Note that synchronize_rcu() will **not** necessarily wait for
any subsequent RCU read-side critical sections to complete.
- For example, consider the following sequence of events:
+ For example, consider the following sequence of events::
CPU 0 CPU 1 CPU 2
----------------- ------------------------- ---------------
@@ -182,7 +196,7 @@ synchronize_rcu()
any that begin after synchronize_rcu() is invoked.
Of course, synchronize_rcu() does not necessarily return
- -immediately- after the last pre-existing RCU read-side critical
+ **immediately** after the last pre-existing RCU read-side critical
section completes. For one thing, there might well be scheduling
delays. For another thing, many RCU implementations process
requests in batches in order to improve efficiencies, which can
@@ -211,10 +225,10 @@ synchronize_rcu()
checklist.txt for some approaches to limiting the update rate.
rcu_assign_pointer()
-
+^^^^^^^^^^^^^^^^^^^^
void rcu_assign_pointer(p, typeof(p) v);
- Yes, rcu_assign_pointer() -is- implemented as a macro, though it
+ Yes, rcu_assign_pointer() **is** implemented as a macro, though it
would be cool to be able to declare a function in this manner.
(Compiler experts will no doubt disagree.)
@@ -231,7 +245,7 @@ rcu_assign_pointer()
the _rcu list-manipulation primitives such as list_add_rcu().
rcu_dereference()
-
+^^^^^^^^^^^^^^^^^
typeof(p) rcu_dereference(p);
Like rcu_assign_pointer(), rcu_dereference() must be implemented
@@ -248,13 +262,13 @@ rcu_dereference()
Common coding practice uses rcu_dereference() to copy an
RCU-protected pointer to a local variable, then dereferences
- this local variable, for example as follows:
+ this local variable, for example as follows::
p = rcu_dereference(head.next);
return p->data;
However, in this case, one could just as easily combine these
- into one statement:
+ into one statement::
return rcu_dereference(head.next)->data;
@@ -266,8 +280,8 @@ rcu_dereference()
unnecessary overhead on Alpha CPUs.
Note that the value returned by rcu_dereference() is valid
- only within the enclosing RCU read-side critical section [1].
- For example, the following is -not- legal:
+ only within the enclosing RCU read-side critical section [1]_.
+ For example, the following is **not** legal::
rcu_read_lock();
p = rcu_dereference(head.next);
@@ -290,9 +304,9 @@ rcu_dereference()
at any time, including immediately after the rcu_dereference().
And, again like rcu_assign_pointer(), rcu_dereference() is
typically used indirectly, via the _rcu list-manipulation
- primitives, such as list_for_each_entry_rcu() [2].
+ primitives, such as list_for_each_entry_rcu() [2]_.
- [1] The variant rcu_dereference_protected() can be used outside
+.. [1] The variant rcu_dereference_protected() can be used outside
of an RCU read-side critical section as long as the usage is
protected by locks acquired by the update-side code. This variant
avoids the lockdep warning that would happen when using (for
@@ -305,7 +319,7 @@ rcu_dereference()
a lockdep splat is emitted. See Documentation/RCU/Design/Requirements/Requirements.rst
and the API's code comments for more details and example usage.
- [2] If the list_for_each_entry_rcu() instance might be used by
+.. [2] If the list_for_each_entry_rcu() instance might be used by
update-side code as well as by RCU readers, then an additional
lockdep expression can be added to its list of arguments.
For example, given an additional "lock_is_held(&mylock)" argument,
@@ -315,6 +329,7 @@ rcu_dereference()
The following diagram shows how each API communicates among the
reader, updater, and reclaimer.
+::
rcu_assign_pointer()
@@ -375,12 +390,16 @@ c. RCU applied to scheduler and interrupt/NMI-handler tasks.
Again, most uses will be of (a). The (b) and (c) cases are important
for specialized uses, but are relatively uncommon.
+.. _3_whatisRCU:
3. WHAT ARE SOME EXAMPLE USES OF CORE RCU API?
+-----------------------------------------------
This section shows a simple use of the core RCU API to protect a
global pointer to a dynamically allocated structure. More-typical
-uses of RCU may be found in listRCU.txt, arrayRCU.txt, and NMI-RCU.txt.
+uses of RCU may be found in :ref:`listRCU.rst <list_rcu_doc>`,
+:ref:`arrayRCU.rst <array_rcu_doc>`, and :ref:`NMI-RCU.rst <NMI_rcu_doc>`.
+::
struct foo {
int a;
@@ -440,40 +459,43 @@ uses of RCU may be found in listRCU.txt, arrayRCU.txt, and NMI-RCU.txt.
So, to sum up:
-o Use rcu_read_lock() and rcu_read_unlock() to guard RCU
+- Use rcu_read_lock() and rcu_read_unlock() to guard RCU
read-side critical sections.
-o Within an RCU read-side critical section, use rcu_dereference()
+- Within an RCU read-side critical section, use rcu_dereference()
to dereference RCU-protected pointers.
-o Use some solid scheme (such as locks or semaphores) to
+- Use some solid scheme (such as locks or semaphores) to
keep concurrent updates from interfering with each other.
-o Use rcu_assign_pointer() to update an RCU-protected pointer.
+- Use rcu_assign_pointer() to update an RCU-protected pointer.
This primitive protects concurrent readers from the updater,
- -not- concurrent updates from each other! You therefore still
+ **not** concurrent updates from each other! You therefore still
need to use locking (or something similar) to keep concurrent
rcu_assign_pointer() primitives from interfering with each other.
-o Use synchronize_rcu() -after- removing a data element from an
- RCU-protected data structure, but -before- reclaiming/freeing
+- Use synchronize_rcu() **after** removing a data element from an
+ RCU-protected data structure, but **before** reclaiming/freeing
the data element, in order to wait for the completion of all
RCU read-side critical sections that might be referencing that
data item.
See checklist.txt for additional rules to follow when using RCU.
-And again, more-typical uses of RCU may be found in listRCU.txt,
-arrayRCU.txt, and NMI-RCU.txt.
+And again, more-typical uses of RCU may be found in :ref:`listRCU.rst
+<list_rcu_doc>`, :ref:`arrayRCU.rst <array_rcu_doc>`, and :ref:`NMI-RCU.rst
+<NMI_rcu_doc>`.
+.. _4_whatisRCU:
4. WHAT IF MY UPDATING THREAD CANNOT BLOCK?
+--------------------------------------------
In the example above, foo_update_a() blocks until a grace period elapses.
This is quite simple, but in some cases one cannot afford to wait so
long -- there might be other high-priority work to be done.
In such cases, one uses call_rcu() rather than synchronize_rcu().
-The call_rcu() API is as follows:
+The call_rcu() API is as follows::
void call_rcu(struct rcu_head * head,
void (*func)(struct rcu_head *head));
@@ -481,7 +503,7 @@ The call_rcu() API is as follows:
This function invokes func(head) after a grace period has elapsed.
This invocation might happen from either softirq or process context,
so the function is not permitted to block. The foo struct needs to
-have an rcu_head structure added, perhaps as follows:
+have an rcu_head structure added, perhaps as follows::
struct foo {
int a;
@@ -490,7 +512,7 @@ have an rcu_head structure added, perhaps as follows:
struct rcu_head rcu;
};
-The foo_update_a() function might then be written as follows:
+The foo_update_a() function might then be written as follows::
/*
* Create a new struct foo that is the same as the one currently
@@ -520,7 +542,7 @@ The foo_update_a() function might then be written as follows:
call_rcu(&old_fp->rcu, foo_reclaim);
}
-The foo_reclaim() function might appear as follows:
+The foo_reclaim() function might appear as follows::
void foo_reclaim(struct rcu_head *rp)
{
@@ -544,7 +566,7 @@ namely foo_reclaim().
The summary of advice is the same as for the previous section, except
that we are now using call_rcu() rather than synchronize_rcu():
-o Use call_rcu() -after- removing a data element from an
+- Use call_rcu() **after** removing a data element from an
RCU-protected data structure in order to register a callback
function that will be invoked after the completion of all RCU
read-side critical sections that might be referencing that
@@ -552,14 +574,16 @@ o Use call_rcu() -after- removing a data element from an
If the callback for call_rcu() is not doing anything more than calling
kfree() on the structure, you can use kfree_rcu() instead of call_rcu()
-to avoid having to write your own callback:
+to avoid having to write your own callback::
kfree_rcu(old_fp, rcu);
Again, see checklist.txt for additional rules governing the use of RCU.
+.. _5_whatisRCU:
5. WHAT ARE SOME SIMPLE IMPLEMENTATIONS OF RCU?
+------------------------------------------------
One of the nice things about RCU is that it has extremely simple "toy"
implementations that are a good first step towards understanding the
@@ -579,7 +603,7 @@ more details on the current implementation as of early 2004.
5A. "TOY" IMPLEMENTATION #1: LOCKING
-
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This section presents a "toy" RCU implementation that is based on
familiar locking primitives. Its overhead makes it a non-starter for
real-life use, as does its lack of scalability. It is also unsuitable
@@ -591,7 +615,7 @@ you allow nested rcu_read_lock() calls, you can deadlock.
However, it is probably the easiest implementation to relate to, so is
a good starting point.
-It is extremely simple:
+It is extremely simple::
static DEFINE_RWLOCK(rcu_gp_mutex);
@@ -614,7 +638,7 @@ It is extremely simple:
[You can ignore rcu_assign_pointer() and rcu_dereference() without missing
much. But here are simplified versions anyway. And whatever you do,
-don't forget about them when submitting patches making use of RCU!]
+don't forget about them when submitting patches making use of RCU!]::
#define rcu_assign_pointer(p, v) \
({ \
@@ -647,18 +671,23 @@ that the only thing that can block rcu_read_lock() is a synchronize_rcu().
But synchronize_rcu() does not acquire any locks while holding rcu_gp_mutex,
so there can be no deadlock cycle.
-Quick Quiz #1: Why is this argument naive? How could a deadlock
+.. _quiz_1:
+
+Quick Quiz #1:
+ Why is this argument naive? How could a deadlock
occur when using this algorithm in a real-world Linux
kernel? How could this deadlock be avoided?
+:ref:`Answers to Quick Quiz <8_whatisRCU>`
5B. "TOY" EXAMPLE #2: CLASSIC RCU
-
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This section presents a "toy" RCU implementation that is based on
"classic RCU". It is also short on performance (but only for updates) and
on features such as hotplug CPU and the ability to run in CONFIG_PREEMPT
kernels. The definitions of rcu_dereference() and rcu_assign_pointer()
are the same as those shown in the preceding section, so they are omitted.
+::
void rcu_read_lock(void) { }
@@ -683,14 +712,14 @@ CPU in turn. The run_on() primitive can be implemented straightforwardly
in terms of the sched_setaffinity() primitive. Of course, a somewhat less
"toy" implementation would restore the affinity upon completion rather
than just leaving all tasks running on the last CPU, but when I said
-"toy", I meant -toy-!
+"toy", I meant **toy**!
So how the heck is this supposed to work???
Remember that it is illegal to block while in an RCU read-side critical
section. Therefore, if a given CPU executes a context switch, we know
that it must have completed all preceding RCU read-side critical sections.
-Once -all- CPUs have executed a context switch, then -all- preceding
+Once **all** CPUs have executed a context switch, then **all** preceding
RCU read-side critical sections will have completed.
So, suppose that we remove a data item from its structure and then invoke
@@ -698,19 +727,32 @@ synchronize_rcu(). Once synchronize_rcu() returns, we are guaranteed
that there are no RCU read-side critical sections holding a reference
to that data item, so we can safely reclaim it.
-Quick Quiz #2: Give an example where Classic RCU's read-side
- overhead is -negative-.
+.. _quiz_2:
+
+Quick Quiz #2:
+ Give an example where Classic RCU's read-side
+ overhead is **negative**.
+
+:ref:`Answers to Quick Quiz <8_whatisRCU>`
-Quick Quiz #3: If it is illegal to block in an RCU read-side
+.. _quiz_3:
+
+Quick Quiz #3:
+ If it is illegal to block in an RCU read-side
critical section, what the heck do you do in
PREEMPT_RT, where normal spinlocks can block???
+:ref:`Answers to Quick Quiz <8_whatisRCU>`
+
+.. _6_whatisRCU:
6. ANALOGY WITH READER-WRITER LOCKING
+--------------------------------------
Although RCU can be used in many different ways, a very common use of
RCU is analogous to reader-writer locking. The following unified
diff shows how closely related RCU and reader-writer locking can be.
+::
@@ -5,5 +5,5 @@ struct el {
int data;
@@ -762,7 +804,7 @@ diff shows how closely related RCU and reader-writer locking can be.
return 0;
}
-Or, for those who prefer a side-by-side listing:
+Or, for those who prefer a side-by-side listing::
1 struct el { 1 struct el {
2 struct list_head list; 2 struct list_head list;
@@ -774,40 +816,44 @@ Or, for those who prefer a side-by-side listing:
8 rwlock_t listmutex; 8 spinlock_t listmutex;
9 struct el head; 9 struct el head;
- 1 int search(long key, int *result) 1 int search(long key, int *result)
- 2 { 2 {
- 3 struct list_head *lp; 3 struct list_head *lp;
- 4 struct el *p; 4 struct el *p;
- 5 5
- 6 read_lock(&listmutex); 6 rcu_read_lock();
- 7 list_for_each_entry(p, head, lp) { 7 list_for_each_entry_rcu(p, head, lp) {
- 8 if (p->key == key) { 8 if (p->key == key) {
- 9 *result = p->data; 9 *result = p->data;
-10 read_unlock(&listmutex); 10 rcu_read_unlock();
-11 return 1; 11 return 1;
-12 } 12 }
-13 } 13 }
-14 read_unlock(&listmutex); 14 rcu_read_unlock();
-15 return 0; 15 return 0;
-16 } 16 }
-
- 1 int delete(long key) 1 int delete(long key)
- 2 { 2 {
- 3 struct el *p; 3 struct el *p;
- 4 4
- 5 write_lock(&listmutex); 5 spin_lock(&listmutex);
- 6 list_for_each_entry(p, head, lp) { 6 list_for_each_entry(p, head, lp) {
- 7 if (p->key == key) { 7 if (p->key == key) {
- 8 list_del(&p->list); 8 list_del_rcu(&p->list);
- 9 write_unlock(&listmutex); 9 spin_unlock(&listmutex);
- 10 synchronize_rcu();
-10 kfree(p); 11 kfree(p);
-11 return 1; 12 return 1;
-12 } 13 }
-13 } 14 }
-14 write_unlock(&listmutex); 15 spin_unlock(&listmutex);
-15 return 0; 16 return 0;
-16 } 17 }
+::
+
+ 1 int search(long key, int *result) 1 int search(long key, int *result)
+ 2 { 2 {
+ 3 struct list_head *lp; 3 struct list_head *lp;
+ 4 struct el *p; 4 struct el *p;
+ 5 5
+ 6 read_lock(&listmutex); 6 rcu_read_lock();
+ 7 list_for_each_entry(p, head, lp) { 7 list_for_each_entry_rcu(p, head, lp) {
+ 8 if (p->key == key) { 8 if (p->key == key) {
+ 9 *result = p->data; 9 *result = p->data;
+ 10 read_unlock(&listmutex); 10 rcu_read_unlock();
+ 11 return 1; 11 return 1;
+ 12 } 12 }
+ 13 } 13 }
+ 14 read_unlock(&listmutex); 14 rcu_read_unlock();
+ 15 return 0; 15 return 0;
+ 16 } 16 }
+
+::
+
+ 1 int delete(long key) 1 int delete(long key)
+ 2 { 2 {
+ 3 struct el *p; 3 struct el *p;
+ 4 4
+ 5 write_lock(&listmutex); 5 spin_lock(&listmutex);
+ 6 list_for_each_entry(p, head, lp) { 6 list_for_each_entry(p, head, lp) {
+ 7 if (p->key == key) { 7 if (p->key == key) {
+ 8 list_del(&p->list); 8 list_del_rcu(&p->list);
+ 9 write_unlock(&listmutex); 9 spin_unlock(&listmutex);
+ 10 synchronize_rcu();
+ 10 kfree(p); 11 kfree(p);
+ 11 return 1; 12 return 1;
+ 12 } 13 }
+ 13 } 14 }
+ 14 write_unlock(&listmutex); 15 spin_unlock(&listmutex);
+ 15 return 0; 16 return 0;
+ 16 } 17 }
Either way, the differences are quite small. Read-side locking moves
to rcu_read_lock() and rcu_read_unlock, update-side locking moves from
@@ -825,22 +871,27 @@ delete() can now block. If this is a problem, there is a callback-based
mechanism that never blocks, namely call_rcu() or kfree_rcu(), that can
be used in place of synchronize_rcu().
+.. _7_whatisRCU:
7. FULL LIST OF RCU APIs
+-------------------------
The RCU APIs are documented in docbook-format header comments in the
Linux-kernel source code, but it helps to have a full list of the
APIs, since there does not appear to be a way to categorize them
in docbook. Here is the list, by category.
-RCU list traversal:
+RCU list traversal::
list_entry_rcu
+ list_entry_lockless
list_first_entry_rcu
list_next_rcu
list_for_each_entry_rcu
list_for_each_entry_continue_rcu
list_for_each_entry_from_rcu
+ list_first_or_null_rcu
+ list_next_or_null_rcu
hlist_first_rcu
hlist_next_rcu
hlist_pprev_rcu
@@ -854,7 +905,7 @@ RCU list traversal:
hlist_bl_first_rcu
hlist_bl_for_each_entry_rcu
-RCU pointer/list update:
+RCU pointer/list update::
rcu_assign_pointer
list_add_rcu
@@ -864,10 +915,12 @@ RCU pointer/list update:
hlist_add_behind_rcu
hlist_add_before_rcu
hlist_add_head_rcu
+ hlist_add_tail_rcu
hlist_del_rcu
hlist_del_init_rcu
hlist_replace_rcu
- list_splice_init_rcu()
+ list_splice_init_rcu
+ list_splice_tail_init_rcu
hlist_nulls_del_init_rcu
hlist_nulls_del_rcu
hlist_nulls_add_head_rcu
@@ -876,7 +929,9 @@ RCU pointer/list update:
hlist_bl_del_rcu
hlist_bl_set_first_rcu
-RCU: Critical sections Grace period Barrier
+RCU::
+
+ Critical sections Grace period Barrier
rcu_read_lock synchronize_net rcu_barrier
rcu_read_unlock synchronize_rcu
@@ -885,7 +940,9 @@ RCU: Critical sections Grace period Barrier
rcu_dereference_check kfree_rcu
rcu_dereference_protected
-bh: Critical sections Grace period Barrier
+bh::
+
+ Critical sections Grace period Barrier
rcu_read_lock_bh call_rcu rcu_barrier
rcu_read_unlock_bh synchronize_rcu
@@ -896,7 +953,9 @@ bh: Critical sections Grace period Barrier
rcu_dereference_bh_protected
rcu_read_lock_bh_held
-sched: Critical sections Grace period Barrier
+sched::
+
+ Critical sections Grace period Barrier
rcu_read_lock_sched call_rcu rcu_barrier
rcu_read_unlock_sched synchronize_rcu
@@ -910,7 +969,9 @@ sched: Critical sections Grace period Barrier
rcu_read_lock_sched_held
-SRCU: Critical sections Grace period Barrier
+SRCU::
+
+ Critical sections Grace period Barrier
srcu_read_lock call_srcu srcu_barrier
srcu_read_unlock synchronize_srcu
@@ -918,13 +979,14 @@ SRCU: Critical sections Grace period Barrier
srcu_dereference_check
srcu_read_lock_held
-SRCU: Initialization/cleanup
+SRCU: Initialization/cleanup::
+
DEFINE_SRCU
DEFINE_STATIC_SRCU
init_srcu_struct
cleanup_srcu_struct
-All: lockdep-checked RCU-protected pointer access
+All: lockdep-checked RCU-protected pointer access::
rcu_access_pointer
rcu_dereference_raw
@@ -974,15 +1036,19 @@ g. Otherwise, use RCU.
Of course, this all assumes that you have determined that RCU is in fact
the right tool for your job.
+.. _8_whatisRCU:
8. ANSWERS TO QUICK QUIZZES
+----------------------------
-Quick Quiz #1: Why is this argument naive? How could a deadlock
+Quick Quiz #1:
+ Why is this argument naive? How could a deadlock
occur when using this algorithm in a real-world Linux
kernel? [Referring to the lock-based "toy" RCU
algorithm.]
-Answer: Consider the following sequence of events:
+Answer:
+ Consider the following sequence of events:
1. CPU 0 acquires some unrelated lock, call it
"problematic_lock", disabling irq via
@@ -1021,10 +1087,14 @@ Answer: Consider the following sequence of events:
approach where tasks in RCU read-side critical sections
cannot be blocked by tasks executing synchronize_rcu().
-Quick Quiz #2: Give an example where Classic RCU's read-side
- overhead is -negative-.
+:ref:`Back to Quick Quiz #1 <quiz_1>`
+
+Quick Quiz #2:
+ Give an example where Classic RCU's read-side
+ overhead is **negative**.
-Answer: Imagine a single-CPU system with a non-CONFIG_PREEMPT
+Answer:
+ Imagine a single-CPU system with a non-CONFIG_PREEMPT
kernel where a routing table is used by process-context
code, but can be updated by irq-context code (for example,
by an "ICMP REDIRECT" packet). The usual way of handling
@@ -1046,11 +1116,15 @@ Answer: Imagine a single-CPU system with a non-CONFIG_PREEMPT
even the theoretical possibility of negative overhead for
a synchronization primitive is a bit unexpected. ;-)
-Quick Quiz #3: If it is illegal to block in an RCU read-side
+:ref:`Back to Quick Quiz #2 <quiz_2>`
+
+Quick Quiz #3:
+ If it is illegal to block in an RCU read-side
critical section, what the heck do you do in
PREEMPT_RT, where normal spinlocks can block???
-Answer: Just as PREEMPT_RT permits preemption of spinlock
+Answer:
+ Just as PREEMPT_RT permits preemption of spinlock
critical sections, it permits preemption of RCU
read-side critical sections. It also permits
spinlocks blocking while in RCU read-side critical
@@ -1069,6 +1143,7 @@ Answer: Just as PREEMPT_RT permits preemption of spinlock
Besides, how does the computer know what pizza parlor
the human being went to???
+:ref:`Back to Quick Quiz #3 <quiz_3>`
ACKNOWLEDGEMENTS
diff --git a/Documentation/admin-guide/acpi/fan_performance_states.rst b/Documentation/admin-guide/acpi/fan_performance_states.rst
new file mode 100644
index 000000000000..21d233ca50d8
--- /dev/null
+++ b/Documentation/admin-guide/acpi/fan_performance_states.rst
@@ -0,0 +1,62 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================
+ACPI Fan Performance States
+===========================
+
+When the optional _FPS object is present under an ACPI device representing a
+fan (for example, PNP0C0B or INT3404), the ACPI fan driver creates additional
+"state*" attributes in the sysfs directory of the ACPI device in question.
+These attributes list properties of fan performance states.
+
+For more information on _FPS refer to the ACPI specification at:
+
+http://uefi.org/specifications
+
+For instance, the contents of the INT3404 ACPI device sysfs directory
+may look as follows::
+
+ $ ls -l /sys/bus/acpi/devices/INT3404:00/
+ total 0
+...
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state0
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state1
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state10
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state11
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state2
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state3
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state4
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state5
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state6
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state7
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state8
+ -r--r--r-- 1 root root 4096 Dec 13 20:38 state9
+ -r--r--r-- 1 root root 4096 Dec 13 01:00 status
+ ...
+
+where each of the "state*" files represents one performance state of the fan
+and contains a colon-separated list of 5 integer numbers (fields) with the
+following interpretation::
+
+control_percent:trip_point_index:speed_rpm:noise_level_mdb:power_mw
+
+* ``control_percent``: The percent value to be used to set the fan speed to a
+ specific level using the _FSL object (0-100).
+
+* ``trip_point_index``: The active cooling trip point number that corresponds
+ to this performance state (0-9).
+
+* ``speed_rpm``: Speed of the fan in rotations per minute.
+
+* ``noise_level_mdb``: Audible noise emitted by the fan in this state in
+ millidecibels.
+
+* ``power_mw``: Power draw of the fan in this state in milliwatts.
+
+For example::
+
+ $cat /sys/bus/acpi/devices/INT3404:00/state1
+ 25:0:3200:12500:1250
+
+When a given field is not populated or its value provided by the platform
+firmware is invalid, the "not-defined" string is shown instead of the value.
diff --git a/Documentation/admin-guide/acpi/index.rst b/Documentation/admin-guide/acpi/index.rst
index 4d13eeea1eca..71277689ad97 100644
--- a/Documentation/admin-guide/acpi/index.rst
+++ b/Documentation/admin-guide/acpi/index.rst
@@ -12,3 +12,4 @@ the Linux ACPI support.
dsdt-override
ssdt-overlays
cppc_sysfs
+ fan_performance_states
diff --git a/Documentation/admin-guide/blockdev/zram.rst b/Documentation/admin-guide/blockdev/zram.rst
index 6eccf13219ff..27c77d853028 100644
--- a/Documentation/admin-guide/blockdev/zram.rst
+++ b/Documentation/admin-guide/blockdev/zram.rst
@@ -1,15 +1,15 @@
========================================
-zram: Compressed RAM based block devices
+zram: Compressed RAM-based block devices
========================================
Introduction
============
-The zram module creates RAM based block devices named /dev/zram<id>
+The zram module creates RAM-based block devices named /dev/zram<id>
(<id> = 0, 1, ...). Pages written to these disks are compressed and stored
in memory itself. These disks allow very fast I/O and compression provides
-good amounts of memory savings. Some of the usecases include /tmp storage,
-use as swap disks, various caches under /var and maybe many more :)
+good amounts of memory savings. Some of the use cases include /tmp storage,
+use as swap disks, various caches under /var and maybe many more. :)
Statistics for individual zram devices are exported through sysfs nodes at
/sys/block/zram<id>/
@@ -43,17 +43,17 @@ The list of possible return codes:
======== =============================================================
-EBUSY an attempt to modify an attribute that cannot be changed once
- the device has been initialised. Please reset device first;
+ the device has been initialised. Please reset device first.
-ENOMEM zram was not able to allocate enough memory to fulfil your
- needs;
+ needs.
-EINVAL invalid input has been provided.
======== =============================================================
-If you use 'echo', the returned value that is changed by 'echo' utility,
+If you use 'echo', the returned value is set by the 'echo' utility,
and, in general case, something like::
echo 3 > /sys/block/zram0/max_comp_streams
- if [ $? -ne 0 ];
+ if [ $? -ne 0 ]; then
handle_error
fi
@@ -65,7 +65,8 @@ should suffice.
::
modprobe zram num_devices=4
- This creates 4 devices: /dev/zram{0,1,2,3}
+
+This creates 4 devices: /dev/zram{0,1,2,3}
num_devices parameter is optional and tells zram how many devices should be
pre-created. Default: 1.
@@ -73,12 +74,12 @@ pre-created. Default: 1.
2) Set max number of compression streams
========================================
-Regardless the value passed to this attribute, ZRAM will always
-allocate multiple compression streams - one per online CPUs - thus
+Regardless of the value passed to this attribute, ZRAM will always
+allocate multiple compression streams - one per online CPU - thus
allowing several concurrent compression operations. The number of
allocated compression streams goes down when some of the CPUs
become offline. There is no single-compression-stream mode anymore,
-unless you are running a UP system or has only 1 CPU online.
+unless you are running a UP system or have only 1 CPU online.
To find out how many streams are currently available::
@@ -89,7 +90,7 @@ To find out how many streams are currently available::
Using comp_algorithm device attribute one can see available and
currently selected (shown in square brackets) compression algorithms,
-change selected compression algorithm (once the device is initialised
+or change the selected compression algorithm (once the device is initialised
there is no way to change compression algorithm).
Examples::
@@ -167,9 +168,9 @@ Examples::
zram provides a control interface, which enables dynamic (on-demand) device
addition and removal.
-In order to add a new /dev/zramX device, perform read operation on hot_add
-attribute. This will return either new device's device id (meaning that you
-can use /dev/zram<id>) or error code.
+In order to add a new /dev/zramX device, perform a read operation on the hot_add
+attribute. This will return either the new device's device id (meaning that you
+can use /dev/zram<id>) or an error code.
Example::
@@ -186,8 +187,8 @@ execute::
Per-device statistics are exported as various nodes under /sys/block/zram<id>/
-A brief description of exported device attributes. For more details please
-read Documentation/ABI/testing/sysfs-block-zram.
+A brief description of exported device attributes follows. For more details
+please read Documentation/ABI/testing/sysfs-block-zram.
====================== ====== ===============================================
Name access description
@@ -245,7 +246,7 @@ whitespace:
File /sys/block/zram<id>/mm_stat
-The stat file represents device's mm statistics. It consists of a single
+The mm_stat file represents the device's mm statistics. It consists of a single
line of text and contains the following stats separated by whitespace:
================ =============================================================
@@ -261,7 +262,7 @@ line of text and contains the following stats separated by whitespace:
Unit: bytes
mem_limit the maximum amount of memory ZRAM can use to store
the compressed data
- mem_used_max the maximum amount of memory zram have consumed to
+ mem_used_max the maximum amount of memory zram has consumed to
store the data
same_pages the number of same element filled pages written to this disk.
No memory is allocated for such pages.
@@ -271,7 +272,7 @@ line of text and contains the following stats separated by whitespace:
File /sys/block/zram<id>/bd_stat
-The stat file represents device's backing device statistics. It consists of
+The bd_stat file represents a device's backing device statistics. It consists of
a single line of text and contains the following stats separated by whitespace:
============== =============================================================
@@ -316,9 +317,9 @@ To use the feature, admin should set up backing device via::
echo /dev/sda5 > /sys/block/zramX/backing_dev
before disksize setting. It supports only partition at this moment.
-If admin want to use incompressible page writeback, they could do via::
+If admin wants to use incompressible page writeback, they could do via::
- echo huge > /sys/block/zramX/write
+ echo huge > /sys/block/zramX/writeback
To use idle page writeback, first, user need to declare zram pages
as idle::
@@ -326,7 +327,7 @@ as idle::
echo all > /sys/block/zramX/idle
From now on, any pages on zram are idle pages. The idle mark
-will be removed until someone request access of the block.
+will be removed until someone requests access of the block.
IOW, unless there is access request, those pages are still idle pages.
Admin can request writeback of those idle pages at right timing via::
@@ -341,16 +342,16 @@ to guarantee storage health for entire product life.
To overcome the concern, zram supports "writeback_limit" feature.
The "writeback_limit_enable"'s default value is 0 so that it doesn't limit
-any writeback. IOW, if admin want to apply writeback budget, he should
+any writeback. IOW, if admin wants to apply writeback budget, he should
enable writeback_limit_enable via::
$ echo 1 > /sys/block/zramX/writeback_limit_enable
Once writeback_limit_enable is set, zram doesn't allow any writeback
-until admin set the budget via /sys/block/zramX/writeback_limit.
+until admin sets the budget via /sys/block/zramX/writeback_limit.
(If admin doesn't enable writeback_limit_enable, writeback_limit's value
-assigned via /sys/block/zramX/writeback_limit is meaninless.)
+assigned via /sys/block/zramX/writeback_limit is meaningless.)
If admin want to limit writeback as per-day 400M, he could do it
like below::
@@ -361,13 +362,13 @@ like below::
/sys/block/zram0/writeback_limit.
$ echo 1 > /sys/block/zram0/writeback_limit_enable
-If admin want to allow further write again once the bugdet is exausted,
+If admins want to allow further write again once the bugdet is exhausted,
he could do it like below::
$ echo $((400<<MB_SHIFT>>4K_SHIFT)) > \
/sys/block/zram0/writeback_limit
-If admin want to see remaining writeback budget since he set::
+If admin wants to see remaining writeback budget since last set::
$ cat /sys/block/zramX/writeback_limit
@@ -375,12 +376,12 @@ If admin want to disable writeback limit, he could do::
$ echo 0 > /sys/block/zramX/writeback_limit_enable
-The writeback_limit count will reset whenever you reset zram(e.g.,
+The writeback_limit count will reset whenever you reset zram (e.g.,
system reboot, echo 1 > /sys/block/zramX/reset) so keeping how many of
writeback happened until you reset the zram to allocate extra writeback
budget in next setting is user's job.
-If admin want to measure writeback count in a certain period, he could
+If admin wants to measure writeback count in a certain period, he could
know it via /sys/block/zram0/bd_stat's 3rd column.
memory tracking
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 0636bcb60b5a..3f801461f0f3 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -61,6 +61,8 @@ v1 is available under Documentation/admin-guide/cgroup-v1/.
5-6. Device
5-7. RDMA
5-7-1. RDMA Interface Files
+ 5-8. HugeTLB
+ 5.8-1. HugeTLB Interface Files
5-8. Misc
5-8-1. perf_event
5-N. Non-normative information
@@ -2056,6 +2058,33 @@ RDMA Interface Files
mlx4_0 hca_handle=1 hca_object=20
ocrdma1 hca_handle=1 hca_object=23
+HugeTLB
+-------
+
+The HugeTLB controller allows to limit the HugeTLB usage per control group and
+enforces the controller limit during page fault.
+
+HugeTLB Interface Files
+~~~~~~~~~~~~~~~~~~~~~~~
+
+ hugetlb.<hugepagesize>.current
+ Show current usage for "hugepagesize" hugetlb. It exists for all
+ the cgroup except root.
+
+ hugetlb.<hugepagesize>.max
+ Set/show the hard limit of "hugepagesize" hugetlb usage.
+ The default value is "max". It exists for all the cgroup except root.
+
+ hugetlb.<hugepagesize>.events
+ A read-only flat-keyed file which exists on non-root cgroups.
+
+ max
+ The number of allocation failure due to HugeTLB limit
+
+ hugetlb.<hugepagesize>.events.local
+ Similar to hugetlb.<hugepagesize>.events but the fields in the file
+ are local to the cgroup i.e. not hierarchical. The file modified event
+ generated on this file reflects only the local events.
Misc
----
diff --git a/Documentation/admin-guide/device-mapper/dm-raid.rst b/Documentation/admin-guide/device-mapper/dm-raid.rst
index f6344675e395..695a2ea1d1ae 100644
--- a/Documentation/admin-guide/device-mapper/dm-raid.rst
+++ b/Documentation/admin-guide/device-mapper/dm-raid.rst
@@ -419,3 +419,5 @@ Version History
rebuild errors.
1.15.0 Fix size extensions not being synchronized in case of new MD bitmap
pages allocated; also fix those not occuring after previous reductions
+ 1.15.1 Fix argument count and arguments for rebuild/write_mostly/journal_(dev|mode)
+ on the status line.
diff --git a/Documentation/admin-guide/devices.txt b/Documentation/admin-guide/devices.txt
index 1c5d2281efc9..2a97aaec8b12 100644
--- a/Documentation/admin-guide/devices.txt
+++ b/Documentation/admin-guide/devices.txt
@@ -319,7 +319,7 @@
182 = /dev/perfctr Performance-monitoring counters
183 = /dev/hwrng Generic random number generator
184 = /dev/cpu/microcode CPU microcode update interface
- 186 = /dev/atomicps Atomic shapshot of process state data
+ 186 = /dev/atomicps Atomic snapshot of process state data
187 = /dev/irnet IrNET device
188 = /dev/smbusbios SMBus BIOS
189 = /dev/ussp_ctl User space serial port control
diff --git a/Documentation/admin-guide/ext4.rst b/Documentation/admin-guide/ext4.rst
index 059ddcbe769d..9443fcef1876 100644
--- a/Documentation/admin-guide/ext4.rst
+++ b/Documentation/admin-guide/ext4.rst
@@ -92,6 +92,8 @@ Currently Available
* efficient new ordered mode in JBD2 and ext4 (avoid using buffer head to force
the ordering)
* Case-insensitive file name lookups
+* file-based encryption support (fscrypt)
+* file-based verity support (fsverity)
[1] Filesystems with a block size of 1k may see a limit imposed by the
directory hash tree having a maximum depth of two.
@@ -181,14 +183,17 @@ When mounting an ext4 filesystem, the following option are accepted:
system after its metadata has been committed to the journal.
commit=nrsec (*)
- Ext4 can be told to sync all its data and metadata every 'nrsec'
- seconds. The default value is 5 seconds. This means that if you lose
- your power, you will lose as much as the latest 5 seconds of work (your
- filesystem will not be damaged though, thanks to the journaling). This
- default value (or any low value) will hurt performance, but it's good
- for data-safety. Setting it to 0 will have the same effect as leaving
- it at the default (5 seconds). Setting it to very large values will
- improve performance.
+ This setting limits the maximum age of the running transaction to
+ 'nrsec' seconds. The default value is 5 seconds. This means that if
+ you lose your power, you will lose as much as the latest 5 seconds of
+ metadata changes (your filesystem will not be damaged though, thanks
+ to the journaling). This default value (or any low value) will hurt
+ performance, but it's good for data-safety. Setting it to 0 will have
+ the same effect as leaving it at the default (5 seconds). Setting it
+ to very large values will improve performance. Note that due to
+ delayed allocation even older data can be lost on power failure since
+ writeback of those data begins only after time set in
+ /proc/sys/vm/dirty_expire_centisecs.
barrier=<0|1(*)>, barrier(*), nobarrier
This enables/disables the use of write barriers in the jbd code.
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 4405b7485312..4433f3929481 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -76,6 +76,7 @@ configure specific aspects of kernel behavior to your liking.
device-mapper/index
efi-stub
ext4
+ nfs/index
gpio/index
highuid
hw_random
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index ade4e6ec23e0..ec92120a7952 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -511,7 +511,7 @@
1 -- check protection requested by application.
Default value is set via a kernel config option.
Value can be changed at runtime via
- /selinux/checkreqprot.
+ /sys/fs/selinux/checkreqprot.
cio_ignore= [S390]
See Documentation/s390/common_io.rst for details.
@@ -1165,10 +1165,10 @@
efi= [EFI]
Format: { "old_map", "nochunk", "noruntime", "debug",
- "nosoftreserve" }
+ "nosoftreserve", "disable_early_pci_dma",
+ "no_disable_early_pci_dma" }
old_map [X86-64]: switch to the old ioremap-based EFI
- runtime services mapping. 32-bit still uses this one by
- default.
+ runtime services mapping. [Needs CONFIG_X86_UV=y]
nochunk: disable reading files in "chunks" in the EFI
boot stub, as chunking can cause problems with some
firmware implementations.
@@ -1180,6 +1180,10 @@
claim. Specify efi=nosoftreserve to disable this
reservation and treat the memory by its base type
(i.e. EFI_CONVENTIONAL_MEMORY / "System RAM").
+ disable_early_pci_dma: Disable the busmaster bit on all
+ PCI bridges while in the EFI boot stub
+ no_disable_early_pci_dma: Leave the busmaster bit set
+ on all PCI bridges while in the EFI boot stub
efi_no_storage_paranoia [EFI; X86]
Using this parameter you can use more than 50% of
@@ -1245,7 +1249,8 @@
0 -- permissive (log only, no denials).
1 -- enforcing (deny and log).
Default value is 0.
- Value can be changed at runtime via /selinux/enforce.
+ Value can be changed at runtime via
+ /sys/fs/selinux/enforce.
erst_disable [ACPI]
Disable Error Record Serialization Table (ERST)
@@ -1933,9 +1938,31 @@
<cpu number> begins at 0 and the maximum value is
"number of CPUs in system - 1".
- The format of <cpu-list> is described above.
-
+ managed_irq
+
+ Isolate from being targeted by managed interrupts
+ which have an interrupt mask containing isolated
+ CPUs. The affinity of managed interrupts is
+ handled by the kernel and cannot be changed via
+ the /proc/irq/* interfaces.
+
+ This isolation is best effort and only effective
+ if the automatically assigned interrupt mask of a
+ device queue contains isolated and housekeeping
+ CPUs. If housekeeping CPUs are online then such
+ interrupts are directed to the housekeeping CPU
+ so that IO submitted on the housekeeping CPU
+ cannot disturb the isolated CPU.
+
+ If a queue's affinity mask contains only isolated
+ CPUs then this parameter has no effect on the
+ interrupt routing decision, though interrupts are
+ only delivered when tasks running on those
+ isolated CPUs submit IO. IO submitted on
+ housekeeping CPUs has no influence on those
+ queues.
+ The format of <cpu-list> is described above.
iucv= [HW,NET]
@@ -3978,6 +4005,19 @@
test until boot completes in order to avoid
interference.
+ rcuperf.kfree_rcu_test= [KNL]
+ Set to measure performance of kfree_rcu() flooding.
+
+ rcuperf.kfree_nthreads= [KNL]
+ The number of threads running loops of kfree_rcu().
+
+ rcuperf.kfree_alloc_num= [KNL]
+ Number of allocations and frees done in an iteration.
+
+ rcuperf.kfree_loops= [KNL]
+ Number of loops doing rcuperf.kfree_alloc_num number
+ of allocations and frees.
+
rcuperf.nreaders= [KNL]
Set number of RCU readers. The value -1 selects
N, where N is the number of CPUs. A value
@@ -4348,9 +4388,7 @@
See security/selinux/Kconfig help text.
0 -- disable.
1 -- enable.
- Default value is set via kernel config option.
- If enabled at boot time, /selinux/disable can be used
- later to disable prior to initial policy load.
+ Default value is 1.
apparmor= [APPARMOR] Disable or enable AppArmor at boot time
Format: { "0" | "1" }
diff --git a/Documentation/filesystems/nfs/fault_injection.txt b/Documentation/admin-guide/nfs/fault_injection.rst
index f3a5b0a8ac05..eb029c0c15ce 100644
--- a/Documentation/filesystems/nfs/fault_injection.txt
+++ b/Documentation/admin-guide/nfs/fault_injection.rst
@@ -1,6 +1,7 @@
+===================
+NFS Fault Injection
+===================
-Fault Injection
-===============
Fault injection is a method for forcing errors that may not normally occur, or
may be difficult to reproduce. Forcing these errors in a controlled environment
can help the developer find and fix bugs before their code is shipped in a
diff --git a/Documentation/admin-guide/nfs/index.rst b/Documentation/admin-guide/nfs/index.rst
new file mode 100644
index 000000000000..6b5a3c90fac5
--- /dev/null
+++ b/Documentation/admin-guide/nfs/index.rst
@@ -0,0 +1,15 @@
+=============
+NFS
+=============
+
+.. toctree::
+ :maxdepth: 1
+
+ nfs-client
+ nfsroot
+ nfs-rdma
+ nfsd-admin-interfaces
+ nfs-idmapper
+ pnfs-block-server
+ pnfs-scsi-server
+ fault_injection
diff --git a/Documentation/filesystems/nfs/nfs.txt b/Documentation/admin-guide/nfs/nfs-client.rst
index f2571c8bef74..c4b777c7584b 100644
--- a/Documentation/filesystems/nfs/nfs.txt
+++ b/Documentation/admin-guide/nfs/nfs-client.rst
@@ -1,3 +1,6 @@
+==========
+NFS Client
+==========
The NFS client
==============
@@ -59,10 +62,11 @@ The DNS resolver
NFSv4 allows for one server to refer the NFS client to data that has been
migrated onto another server by means of the special "fs_locations"
-attribute. See
- http://tools.ietf.org/html/rfc3530#section-6
-and
- http://tools.ietf.org/html/draft-ietf-nfsv4-referrals-00
+attribute. See `RFC3530 Section 6: Filesystem Migration and Replication`_ and
+`Implementation Guide for Referrals in NFSv4`_.
+
+.. _RFC3530 Section 6\: Filesystem Migration and Replication: http://tools.ietf.org/html/rfc3530#section-6
+.. _Implementation Guide for Referrals in NFSv4: http://tools.ietf.org/html/draft-ietf-nfsv4-referrals-00
The fs_locations information can take the form of either an ip address and
a path, or a DNS hostname and a path. The latter requires the NFS client to
@@ -78,8 +82,8 @@ Assuming that the user has the 'rpc_pipefs' filesystem mounted in the usual
(2) If no valid entry exists, the helper script '/sbin/nfs_cache_getent'
(may be changed using the 'nfs.cache_getent' kernel boot parameter)
is run, with two arguments:
- - the cache name, "dns_resolve"
- - the hostname to resolve
+ - the cache name, "dns_resolve"
+ - the hostname to resolve
(3) After looking up the corresponding ip address, the helper script
writes the result into the rpc_pipefs pseudo-file
@@ -94,43 +98,44 @@ Assuming that the user has the 'rpc_pipefs' filesystem mounted in the usual
script, and <ttl> is the 'time to live' of this cache entry (in
units of seconds).
- Note: If <ip address> is invalid, say the string "0", then a negative
- entry is created, which will cause the kernel to treat the hostname
- as having no valid DNS translation.
+ .. note::
+ If <ip address> is invalid, say the string "0", then a negative
+ entry is created, which will cause the kernel to treat the hostname
+ as having no valid DNS translation.
A basic sample /sbin/nfs_cache_getent
=====================================
-
-#!/bin/bash
-#
-ttl=600
-#
-cut=/usr/bin/cut
-getent=/usr/bin/getent
-rpc_pipefs=/var/lib/nfs/rpc_pipefs
-#
-die()
-{
- echo "Usage: $0 cache_name entry_name"
- exit 1
-}
-
-[ $# -lt 2 ] && die
-cachename="$1"
-cache_path=${rpc_pipefs}/cache/${cachename}/channel
-
-case "${cachename}" in
- dns_resolve)
- name="$2"
- result="$(${getent} hosts ${name} | ${cut} -f1 -d\ )"
- [ -z "${result}" ] && result="0"
- ;;
- *)
- die
- ;;
-esac
-echo "${result} ${name} ${ttl}" >${cache_path}
-
+.. code-block:: sh
+
+ #!/bin/bash
+ #
+ ttl=600
+ #
+ cut=/usr/bin/cut
+ getent=/usr/bin/getent
+ rpc_pipefs=/var/lib/nfs/rpc_pipefs
+ #
+ die()
+ {
+ echo "Usage: $0 cache_name entry_name"
+ exit 1
+ }
+
+ [ $# -lt 2 ] && die
+ cachename="$1"
+ cache_path=${rpc_pipefs}/cache/${cachename}/channel
+
+ case "${cachename}" in
+ dns_resolve)
+ name="$2"
+ result="$(${getent} hosts ${name} | ${cut} -f1 -d\ )"
+ [ -z "${result}" ] && result="0"
+ ;;
+ *)
+ die
+ ;;
+ esac
+ echo "${result} ${name} ${ttl}" >${cache_path}
diff --git a/Documentation/filesystems/nfs/idmapper.txt b/Documentation/admin-guide/nfs/nfs-idmapper.rst
index b86831acd583..58b8e63412d5 100644
--- a/Documentation/filesystems/nfs/idmapper.txt
+++ b/Documentation/admin-guide/nfs/nfs-idmapper.rst
@@ -1,7 +1,7 @@
+=============
+NFS ID Mapper
+=============
-=========
-ID Mapper
-=========
Id mapper is used by NFS to translate user and group ids into names, and to
translate user and group names into ids. Part of this translation involves
performing an upcall to userspace to request the information. There are two
@@ -20,22 +20,24 @@ legacy rpc.idmap daemon for the id mapping. This result will be stored
in a custom NFS idmap cache.
-===========
Configuring
===========
+
The file /etc/request-key.conf will need to be modified so /sbin/request-key can
direct the upcall. The following line should be added:
-#OP TYPE DESCRIPTION CALLOUT INFO PROGRAM ARG1 ARG2 ARG3 ...
-#====== ======= =============== =============== ===============================
-create id_resolver * * /usr/sbin/nfs.idmap %k %d 600
+``#OP TYPE DESCRIPTION CALLOUT INFO PROGRAM ARG1 ARG2 ARG3 ...``
+``#====== ======= =============== =============== ===============================``
+``create id_resolver * * /usr/sbin/nfs.idmap %k %d 600``
+
This will direct all id_resolver requests to the program /usr/sbin/nfs.idmap.
The last parameter, 600, defines how many seconds into the future the key will
expire. This parameter is optional for /usr/sbin/nfs.idmap. When the timeout
is not specified, nfs.idmap will default to 600 seconds.
-id mapper uses for key descriptions:
+id mapper uses for key descriptions::
+
uid: Find the UID for the given user
gid: Find the GID for the given group
user: Find the user name for the given UID
@@ -45,23 +47,24 @@ You can handle any of these individually, rather than using the generic upcall
program. If you would like to use your own program for a uid lookup then you
would edit your request-key.conf so it look similar to this:
-#OP TYPE DESCRIPTION CALLOUT INFO PROGRAM ARG1 ARG2 ARG3 ...
-#====== ======= =============== =============== ===============================
-create id_resolver uid:* * /some/other/program %k %d 600
-create id_resolver * * /usr/sbin/nfs.idmap %k %d 600
+``#OP TYPE DESCRIPTION CALLOUT INFO PROGRAM ARG1 ARG2 ARG3 ...``
+``#====== ======= =============== =============== ===============================``
+``create id_resolver uid:* * /some/other/program %k %d 600``
+``create id_resolver * * /usr/sbin/nfs.idmap %k %d 600``
+
Notice that the new line was added above the line for the generic program.
request-key will find the first matching line and corresponding program. In
this case, /some/other/program will handle all uid lookups and
/usr/sbin/nfs.idmap will handle gid, user, and group lookups.
-See <file:Documentation/security/keys/request-key.rst> for more information
+See Documentation/security/keys/request-key.rst for more information
about the request-key function.
-=========
nfs.idmap
=========
+
nfs.idmap is designed to be called by request-key, and should not be run "by
hand". This program takes two arguments, a serialized key and a key
description. The serialized key is first converted into a key_serial_t, and
diff --git a/Documentation/admin-guide/nfs/nfs-rdma.rst b/Documentation/admin-guide/nfs/nfs-rdma.rst
new file mode 100644
index 000000000000..ef0f3678b1fb
--- /dev/null
+++ b/Documentation/admin-guide/nfs/nfs-rdma.rst
@@ -0,0 +1,292 @@
+===================
+Setting up NFS/RDMA
+===================
+
+:Author:
+ NetApp and Open Grid Computing (May 29, 2008)
+
+.. warning::
+ This document is probably obsolete.
+
+Overview
+========
+
+This document describes how to install and setup the Linux NFS/RDMA client
+and server software.
+
+The NFS/RDMA client was first included in Linux 2.6.24. The NFS/RDMA server
+was first included in the following release, Linux 2.6.25.
+
+In our testing, we have obtained excellent performance results (full 10Gbit
+wire bandwidth at minimal client CPU) under many workloads. The code passes
+the full Connectathon test suite and operates over both Infiniband and iWARP
+RDMA adapters.
+
+Getting Help
+============
+
+If you get stuck, you can ask questions on the
+nfs-rdma-devel@lists.sourceforge.net mailing list.
+
+Installation
+============
+
+These instructions are a step by step guide to building a machine for
+use with NFS/RDMA.
+
+- Install an RDMA device
+
+ Any device supported by the drivers in drivers/infiniband/hw is acceptable.
+
+ Testing has been performed using several Mellanox-based IB cards, the
+ Ammasso AMS1100 iWARP adapter, and the Chelsio cxgb3 iWARP adapter.
+
+- Install a Linux distribution and tools
+
+ The first kernel release to contain both the NFS/RDMA client and server was
+ Linux 2.6.25 Therefore, a distribution compatible with this and subsequent
+ Linux kernel release should be installed.
+
+ The procedures described in this document have been tested with
+ distributions from Red Hat's Fedora Project (http://fedora.redhat.com/).
+
+- Install nfs-utils-1.1.2 or greater on the client
+
+ An NFS/RDMA mount point can be obtained by using the mount.nfs command in
+ nfs-utils-1.1.2 or greater (nfs-utils-1.1.1 was the first nfs-utils
+ version with support for NFS/RDMA mounts, but for various reasons we
+ recommend using nfs-utils-1.1.2 or greater). To see which version of
+ mount.nfs you are using, type:
+
+ .. code-block:: sh
+
+ $ /sbin/mount.nfs -V
+
+ If the version is less than 1.1.2 or the command does not exist,
+ you should install the latest version of nfs-utils.
+
+ Download the latest package from: http://www.kernel.org/pub/linux/utils/nfs
+
+ Uncompress the package and follow the installation instructions.
+
+ If you will not need the idmapper and gssd executables (you do not need
+ these to create an NFS/RDMA enabled mount command), the installation
+ process can be simplified by disabling these features when running
+ configure:
+
+ .. code-block:: sh
+
+ $ ./configure --disable-gss --disable-nfsv4
+
+ To build nfs-utils you will need the tcp_wrappers package installed. For
+ more information on this see the package's README and INSTALL files.
+
+ After building the nfs-utils package, there will be a mount.nfs binary in
+ the utils/mount directory. This binary can be used to initiate NFS v2, v3,
+ or v4 mounts. To initiate a v4 mount, the binary must be called
+ mount.nfs4. The standard technique is to create a symlink called
+ mount.nfs4 to mount.nfs.
+
+ This mount.nfs binary should be installed at /sbin/mount.nfs as follows:
+
+ .. code-block:: sh
+
+ $ sudo cp utils/mount/mount.nfs /sbin/mount.nfs
+
+ In this location, mount.nfs will be invoked automatically for NFS mounts
+ by the system mount command.
+
+ .. note::
+ mount.nfs and therefore nfs-utils-1.1.2 or greater is only needed
+ on the NFS client machine. You do not need this specific version of
+ nfs-utils on the server. Furthermore, only the mount.nfs command from
+ nfs-utils-1.1.2 is needed on the client.
+
+- Install a Linux kernel with NFS/RDMA
+
+ The NFS/RDMA client and server are both included in the mainline Linux
+ kernel version 2.6.25 and later. This and other versions of the Linux
+ kernel can be found at: https://www.kernel.org/pub/linux/kernel/
+
+ Download the sources and place them in an appropriate location.
+
+- Configure the RDMA stack
+
+ Make sure your kernel configuration has RDMA support enabled. Under
+ Device Drivers -> InfiniBand support, update the kernel configuration
+ to enable InfiniBand support [NOTE: the option name is misleading. Enabling
+ InfiniBand support is required for all RDMA devices (IB, iWARP, etc.)].
+
+ Enable the appropriate IB HCA support (mlx4, mthca, ehca, ipath, etc.) or
+ iWARP adapter support (amso, cxgb3, etc.).
+
+ If you are using InfiniBand, be sure to enable IP-over-InfiniBand support.
+
+- Configure the NFS client and server
+
+ Your kernel configuration must also have NFS file system support and/or
+ NFS server support enabled. These and other NFS related configuration
+ options can be found under File Systems -> Network File Systems.
+
+- Build, install, reboot
+
+ The NFS/RDMA code will be enabled automatically if NFS and RDMA
+ are turned on. The NFS/RDMA client and server are configured via the hidden
+ SUNRPC_XPRT_RDMA config option that depends on SUNRPC and INFINIBAND. The
+ value of SUNRPC_XPRT_RDMA will be:
+
+ #. N if either SUNRPC or INFINIBAND are N, in this case the NFS/RDMA client
+ and server will not be built
+
+ #. M if both SUNRPC and INFINIBAND are on (M or Y) and at least one is M,
+ in this case the NFS/RDMA client and server will be built as modules
+
+ #. Y if both SUNRPC and INFINIBAND are Y, in this case the NFS/RDMA client
+ and server will be built into the kernel
+
+ Therefore, if you have followed the steps above and turned no NFS and RDMA,
+ the NFS/RDMA client and server will be built.
+
+ Build a new kernel, install it, boot it.
+
+Check RDMA and NFS Setup
+========================
+
+Before configuring the NFS/RDMA software, it is a good idea to test
+your new kernel to ensure that the kernel is working correctly.
+In particular, it is a good idea to verify that the RDMA stack
+is functioning as expected and standard NFS over TCP/IP and/or UDP/IP
+is working properly.
+
+- Check RDMA Setup
+
+ If you built the RDMA components as modules, load them at
+ this time. For example, if you are using a Mellanox Tavor/Sinai/Arbel
+ card:
+
+ .. code-block:: sh
+
+ $ modprobe ib_mthca
+ $ modprobe ib_ipoib
+
+ If you are using InfiniBand, make sure there is a Subnet Manager (SM)
+ running on the network. If your IB switch has an embedded SM, you can
+ use it. Otherwise, you will need to run an SM, such as OpenSM, on one
+ of your end nodes.
+
+ If an SM is running on your network, you should see the following:
+
+ .. code-block:: sh
+
+ $ cat /sys/class/infiniband/driverX/ports/1/state
+ 4: ACTIVE
+
+ where driverX is mthca0, ipath5, ehca3, etc.
+
+ To further test the InfiniBand software stack, use IPoIB (this
+ assumes you have two IB hosts named host1 and host2):
+
+ .. code-block:: sh
+
+ host1$ ip link set dev ib0 up
+ host1$ ip address add dev ib0 a.b.c.x
+ host2$ ip link set dev ib0 up
+ host2$ ip address add dev ib0 a.b.c.y
+ host1$ ping a.b.c.y
+ host2$ ping a.b.c.x
+
+ For other device types, follow the appropriate procedures.
+
+- Check NFS Setup
+
+ For the NFS components enabled above (client and/or server),
+ test their functionality over standard Ethernet using TCP/IP or UDP/IP.
+
+NFS/RDMA Setup
+==============
+
+We recommend that you use two machines, one to act as the client and
+one to act as the server.
+
+One time configuration:
+-----------------------
+
+- On the server system, configure the /etc/exports file and start the NFS/RDMA server.
+
+ Exports entries with the following formats have been tested::
+
+ /vol0 192.168.0.47(fsid=0,rw,async,insecure,no_root_squash)
+ /vol0 192.168.0.0/255.255.255.0(fsid=0,rw,async,insecure,no_root_squash)
+
+ The IP address(es) is(are) the client's IPoIB address for an InfiniBand
+ HCA or the client's iWARP address(es) for an RNIC.
+
+ .. note::
+ The "insecure" option must be used because the NFS/RDMA client does
+ not use a reserved port.
+
+Each time a machine boots:
+--------------------------
+
+- Load and configure the RDMA drivers
+
+ For InfiniBand using a Mellanox adapter:
+
+ .. code-block:: sh
+
+ $ modprobe ib_mthca
+ $ modprobe ib_ipoib
+ $ ip li set dev ib0 up
+ $ ip addr add dev ib0 a.b.c.d
+
+ .. note::
+ Please use unique addresses for the client and server!
+
+- Start the NFS server
+
+ If the NFS/RDMA server was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
+ kernel config), load the RDMA transport module:
+
+ .. code-block:: sh
+
+ $ modprobe svcrdma
+
+ Regardless of how the server was built (module or built-in), start the
+ server:
+
+ .. code-block:: sh
+
+ $ /etc/init.d/nfs start
+
+ or
+
+ .. code-block:: sh
+
+ $ service nfs start
+
+ Instruct the server to listen on the RDMA transport:
+
+ .. code-block:: sh
+
+ $ echo rdma 20049 > /proc/fs/nfsd/portlist
+
+- On the client system
+
+ If the NFS/RDMA client was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
+ kernel config), load the RDMA client module:
+
+ .. code-block:: sh
+
+ $ modprobe xprtrdma.ko
+
+ Regardless of how the client was built (module or built-in), use this
+ command to mount the NFS/RDMA server:
+
+ .. code-block:: sh
+
+ $ mount -o rdma,port=20049 <IPoIB-server-name-or-address>:/<export> /mnt
+
+ To verify that the mount is using RDMA, run "cat /proc/mounts" and check
+ the "proto" field for the given mount.
+
+ Congratulations! You're using NFS/RDMA!
diff --git a/Documentation/filesystems/nfs/nfsd-admin-interfaces.txt b/Documentation/admin-guide/nfs/nfsd-admin-interfaces.rst
index 56a96fb08a73..c05926f79054 100644
--- a/Documentation/filesystems/nfs/nfsd-admin-interfaces.txt
+++ b/Documentation/admin-guide/nfs/nfsd-admin-interfaces.rst
@@ -1,5 +1,6 @@
+==================================
Administrative interfaces for nfsd
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+==================================
Note that normally these interfaces are used only by the utilities in
nfs-utils.
@@ -13,18 +14,16 @@ nfsd/threads.
Before doing that, NFSD can be told which sockets to listen on by
writing to nfsd/portlist; that write may be:
- - an ascii-encoded file descriptor, which should refer to a
- bound (and listening, for tcp) socket, or
- - "transportname port", where transportname is currently either
- "udp", "tcp", or "rdma".
+ - an ascii-encoded file descriptor, which should refer to a
+ bound (and listening, for tcp) socket, or
+ - "transportname port", where transportname is currently either
+ "udp", "tcp", or "rdma".
If nfsd is started without doing any of these, then it will create one
udp and one tcp listener at port 2049 (see nfsd_init_socks).
-On startup, nfsd and lockd grace periods start.
-
-nfsd is shut down by a write of 0 to nfsd/threads. All locks and state
-are thrown away at that point.
+On startup, nfsd and lockd grace periods start. nfsd is shut down by a write of
+0 to nfsd/threads. All locks and state are thrown away at that point.
Between startup and shutdown, the number of threads may be adjusted up
or down by additional writes to nfsd/threads or by writes to
@@ -34,7 +33,7 @@ For more detail about files under nfsd/ and what they control, see
fs/nfsd/nfsctl.c; most of them have detailed comments.
Implementation notes
-^^^^^^^^^^^^^^^^^^^^
+====================
Note that the rpc server requires the caller to serialize addition and
removal of listening sockets, and startup and shutdown of the server.
diff --git a/Documentation/filesystems/nfs/nfsroot.txt b/Documentation/admin-guide/nfs/nfsroot.rst
index ae4332464560..82a4fda057f9 100644
--- a/Documentation/filesystems/nfs/nfsroot.txt
+++ b/Documentation/admin-guide/nfs/nfsroot.rst
@@ -1,27 +1,34 @@
+===============================================
Mounting the root filesystem via NFS (nfsroot)
===============================================
-Written 1996 by Gero Kuhlmann <gero@gkminix.han.de>
-Updated 1997 by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
-Updated 2006 by Nico Schottelius <nico-kernel-nfsroot@schottelius.org>
-Updated 2006 by Horms <horms@verge.net.au>
-Updated 2018 by Chris Novakovic <chris@chrisn.me.uk>
+:Authors:
+ Written 1996 by Gero Kuhlmann <gero@gkminix.han.de>
+
+ Updated 1997 by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+
+ Updated 2006 by Nico Schottelius <nico-kernel-nfsroot@schottelius.org>
+
+ Updated 2006 by Horms <horms@verge.net.au>
+ Updated 2018 by Chris Novakovic <chris@chrisn.me.uk>
-In order to use a diskless system, such as an X-terminal or printer server
-for example, it is necessary for the root filesystem to be present on a
-non-disk device. This may be an initramfs (see Documentation/filesystems/
-ramfs-rootfs-initramfs.txt), a ramdisk (see Documentation/admin-guide/initrd.rst) or a
-filesystem mounted via NFS. The following text describes on how to use NFS
-for the root filesystem. For the rest of this text 'client' means the
-diskless system, and 'server' means the NFS server.
+In order to use a diskless system, such as an X-terminal or printer server for
+example, it is necessary for the root filesystem to be present on a non-disk
+device. This may be an initramfs (see
+Documentation/filesystems/ramfs-rootfs-initramfs.txt), a ramdisk (see
+Documentation/admin-guide/initrd.rst) or a filesystem mounted via NFS. The
+following text describes on how to use NFS for the root filesystem. For the rest
+of this text 'client' means the diskless system, and 'server' means the NFS
+server.
-1.) Enabling nfsroot capabilities
- -----------------------------
+
+Enabling nfsroot capabilities
+=============================
In order to use nfsroot, NFS client support needs to be selected as
built-in during configuration. Once this has been selected, the nfsroot
@@ -34,8 +41,8 @@ DHCP, BOOTP and RARP is safe.
-2.) Kernel command line
- -------------------
+Kernel command line
+===================
When the kernel has been loaded by a boot loader (see below) it needs to be
told what root fs device to use. And in the case of nfsroot, where to find
@@ -44,19 +51,17 @@ This can be established using the following kernel command line parameters:
root=/dev/nfs
-
This is necessary to enable the pseudo-NFS-device. Note that it's not a
real device but just a synonym to tell the kernel to use NFS instead of
a real device.
nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>]
-
If the `nfsroot' parameter is NOT given on the command line,
- the default "/tftpboot/%s" will be used.
+ the default ``"/tftpboot/%s"`` will be used.
<server-ip> Specifies the IP address of the NFS server.
- The default address is determined by the `ip' parameter
+ The default address is determined by the ip parameter
(see below). This parameter allows the use of different
servers for IP autoconfiguration and NFS.
@@ -66,7 +71,8 @@ nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>]
IP address.
<nfs-options> Standard NFS options. All options are separated by commas.
- The following defaults are used:
+ The following defaults are used::
+
port = as given by server portmap daemon
rsize = 4096
wsize = 4096
@@ -79,13 +85,11 @@ nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>]
flags = hard, nointr, noposix, cto, ac
-ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:
- <dns0-ip>:<dns1-ip>:<ntp0-ip>
-
+ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:<dns0-ip>:<dns1-ip>:<ntp0-ip>
This parameter tells the kernel how to configure IP addresses of devices
and also how to set up the IP routing table. It was originally called
- `nfsaddrs', but now the boot-time IP configuration works independently of
- NFS, so it was renamed to `ip' and the old name remained as an alias for
+ nfsaddrs, but now the boot-time IP configuration works independently of
+ NFS, so it was renamed to ip and the old name remained as an alias for
compatibility reasons.
If this parameter is missing from the kernel command line, all fields are
@@ -93,17 +97,17 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:
this means that the kernel tries to configure everything using
autoconfiguration.
- The <autoconf> parameter can appear alone as the value to the `ip'
+ The <autoconf> parameter can appear alone as the value to the ip
parameter (without all the ':' characters before). If the value is
"ip=off" or "ip=none", no autoconfiguration will take place, otherwise
autoconfiguration will take place. The most common way to use this
is "ip=dhcp".
<client-ip> IP address of the client.
-
Default: Determined using autoconfiguration.
- <server-ip> IP address of the NFS server. If RARP is used to determine
+ <server-ip> IP address of the NFS server.
+ If RARP is used to determine
the client address and this parameter is NOT empty only
replies from the specified server are accepted.
@@ -115,19 +119,19 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:
(see below).
Default: Determined using autoconfiguration.
- The address of the autoconfiguration server is used.
+ The address of the autoconfiguration server is used.
<gw-ip> IP address of a gateway if the server is on a different subnet.
-
Default: Determined using autoconfiguration.
- <netmask> Netmask for local network interface. If unspecified
- the netmask is derived from the client IP address assuming
- classful addressing.
+ <netmask> Netmask for local network interface.
+ If unspecified the netmask is derived from the client IP address
+ assuming classful addressing.
Default: Determined using autoconfiguration.
- <hostname> Name of the client. If a '.' character is present, anything
+ <hostname> Name of the client.
+ If a '.' character is present, anything
before the first '.' is used as the client's hostname, and anything
after it is used as its NIS domain name. May be supplied by
autoconfiguration, but its absence will not trigger autoconfiguration.
@@ -138,21 +142,21 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:
Default: Client IP address is used in ASCII notation.
<device> Name of network device to use.
-
Default: If the host only has one device, it is used.
- Otherwise the device is determined using
- autoconfiguration. This is done by sending
- autoconfiguration requests out of all devices,
- and using the device that received the first reply.
-
- <autoconf> Method to use for autoconfiguration. In the case of options
- which specify multiple autoconfiguration protocols,
+ Otherwise the device is determined using
+ autoconfiguration. This is done by sending
+ autoconfiguration requests out of all devices,
+ and using the device that received the first reply.
+
+ <autoconf> Method to use for autoconfiguration.
+ In the case of options
+ which specify multiple autoconfiguration protocols,
requests are sent using all protocols, and the first one
to reply is used.
Only autoconfiguration protocols that have been compiled
into the kernel will be used, regardless of the value of
- this option.
+ this option::
off or none: don't use autoconfiguration
(do static IP assignment instead)
@@ -221,7 +225,6 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>:
nfsrootdebug
-
This parameter enables debugging messages to appear in the kernel
log at boot time so that administrators can verify that the correct
NFS mount options, server address, and root path are passed to the
@@ -229,36 +232,32 @@ nfsrootdebug
rdinit=<executable file>
-
To specify which file contains the program that starts system
initialization, administrators can use this command line parameter.
The default value of this parameter is "/init". If the specified
file exists and the kernel can execute it, root filesystem related
- kernel command line parameters, including `nfsroot=', are ignored.
+ kernel command line parameters, including 'nfsroot=', are ignored.
A description of the process of mounting the root file system can be
- found in:
-
- Documentation/driver-api/early-userspace/early_userspace_support.rst
-
-
+ found in Documentation/driver-api/early-userspace/early_userspace_support.rst
-3.) Boot Loader
- ----------
+Boot Loader
+===========
To get the kernel into memory different approaches can be used.
They depend on various facilities being available:
-3.1) Booting from a floppy using syslinux
+- Booting from a floppy using syslinux
When building kernels, an easy way to create a boot floppy that uses
syslinux is to use the zdisk or bzdisk make targets which use zimage
and bzimage images respectively. Both targets accept the
FDARGS parameter which can be used to set the kernel command line.
- e.g.
+ e.g::
+
make bzdisk FDARGS="root=/dev/nfs"
Note that the user running this command will need to have
@@ -267,32 +266,36 @@ They depend on various facilities being available:
For more information on syslinux, including how to create bootdisks
for prebuilt kernels, see http://syslinux.zytor.com/
- N.B: Previously it was possible to write a kernel directly to
- a floppy using dd, configure the boot device using rdev, and
- boot using the resulting floppy. Linux no longer supports this
- method of booting.
+ .. note::
+ Previously it was possible to write a kernel directly to
+ a floppy using dd, configure the boot device using rdev, and
+ boot using the resulting floppy. Linux no longer supports this
+ method of booting.
-3.2) Booting from a cdrom using isolinux
+- Booting from a cdrom using isolinux
When building kernels, an easy way to create a bootable cdrom that
uses isolinux is to use the isoimage target which uses a bzimage
image. Like zdisk and bzdisk, this target accepts the FDARGS
parameter which can be used to set the kernel command line.
- e.g.
+ e.g::
+
make isoimage FDARGS="root=/dev/nfs"
The resulting iso image will be arch/<ARCH>/boot/image.iso
This can be written to a cdrom using a variety of tools including
cdrecord.
- e.g.
+ e.g::
+
cdrecord dev=ATAPI:1,0,0 arch/x86/boot/image.iso
For more information on isolinux, including how to create bootdisks
for prebuilt kernels, see http://syslinux.zytor.com/
-3.2) Using LILO
+- Using LILO
+
When using LILO all the necessary command line parameters may be
specified using the 'append=' directive in the LILO configuration
file.
@@ -300,15 +303,19 @@ They depend on various facilities being available:
However, to use the 'root=' directive you also need to create
a dummy root device, which may be removed after LILO is run.
- mknod /dev/boot255 c 0 255
+ e.g::
+
+ mknod /dev/boot255 c 0 255
For information on configuring LILO, please refer to its documentation.
-3.3) Using GRUB
+- Using GRUB
+
When using GRUB, kernel parameter are simply appended after the kernel
specification: kernel <kernel> <parameters>
-3.4) Using loadlin
+- Using loadlin
+
loadlin may be used to boot Linux from a DOS command prompt without
requiring a local hard disk to mount as root. This has not been
thoroughly tested by the authors of this document, but in general
@@ -317,7 +324,8 @@ They depend on various facilities being available:
Please refer to the loadlin documentation for further information.
-3.5) Using a boot ROM
+- Using a boot ROM
+
This is probably the most elegant way of booting a diskless client.
With a boot ROM the kernel is loaded using the TFTP protocol. The
authors of this document are not aware of any no commercial boot
@@ -326,7 +334,8 @@ They depend on various facilities being available:
etherboot, both of which are available on sunsite.unc.edu, and both
of which contain everything you need to boot a diskless Linux client.
-3.6) Using pxelinux
+- Using pxelinux
+
Pxelinux may be used to boot linux using the PXE boot loader
which is present on many modern network cards.
@@ -342,8 +351,8 @@ They depend on various facilities being available:
-4.) Credits
- -------
+Credits
+=======
The nfsroot code in the kernel and the RARP support have been written
by Gero Kuhlmann <gero@gkminix.han.de>.
diff --git a/Documentation/filesystems/nfs/pnfs-block-server.txt b/Documentation/admin-guide/nfs/pnfs-block-server.rst
index 2143673cf154..b00a2e705cc4 100644
--- a/Documentation/filesystems/nfs/pnfs-block-server.txt
+++ b/Documentation/admin-guide/nfs/pnfs-block-server.rst
@@ -1,4 +1,6 @@
+===================================
pNFS block layout server user guide
+===================================
The Linux NFS server now supports the pNFS block layout extension. In this
case the NFS server acts as Metadata Server (MDS) for pNFS, which in addition
@@ -22,16 +24,19 @@ If the nfsd server needs to fence a non-responding client it calls
/sbin/nfsd-recall-failed with the first argument set to the IP address of
the client, and the second argument set to the device node without the /dev
prefix for the file system to be fenced. Below is an example file that shows
-how to translate the device into a serial number from SCSI EVPD 0x80:
+how to translate the device into a serial number from SCSI EVPD 0x80::
-cat > /sbin/nfsd-recall-failed << EOF
-#!/bin/sh
+ cat > /sbin/nfsd-recall-failed << EOF
-CLIENT="$1"
-DEV="/dev/$2"
-EVPD=`sg_inq --page=0x80 ${DEV} | \
- grep "Unit serial number:" | \
- awk -F ': ' '{print $2}'`
+.. code-block:: sh
-echo "fencing client ${CLIENT} serial ${EVPD}" >> /var/log/pnfsd-fence.log
-EOF
+ #!/bin/sh
+
+ CLIENT="$1"
+ DEV="/dev/$2"
+ EVPD=`sg_inq --page=0x80 ${DEV} | \
+ grep "Unit serial number:" | \
+ awk -F ': ' '{print $2}'`
+
+ echo "fencing client ${CLIENT} serial ${EVPD}" >> /var/log/pnfsd-fence.log
+ EOF
diff --git a/Documentation/filesystems/nfs/pnfs-scsi-server.txt b/Documentation/admin-guide/nfs/pnfs-scsi-server.rst
index 5bef7268bd9f..d2f6ee558071 100644
--- a/Documentation/filesystems/nfs/pnfs-scsi-server.txt
+++ b/Documentation/admin-guide/nfs/pnfs-scsi-server.rst
@@ -1,4 +1,5 @@
+==================================
pNFS SCSI layout server user guide
==================================
diff --git a/Documentation/admin-guide/pm/cpuidle.rst b/Documentation/admin-guide/pm/cpuidle.rst
index e70b365dbc60..311cd7cc2b75 100644
--- a/Documentation/admin-guide/pm/cpuidle.rst
+++ b/Documentation/admin-guide/pm/cpuidle.rst
@@ -506,6 +506,9 @@ object corresponding to it, as follows:
``disable``
Whether or not this idle state is disabled.
+``default_status``
+ The default status of this state, "enabled" or "disabled".
+
``latency``
Exit latency of the idle state in microseconds.
diff --git a/Documentation/admin-guide/pm/intel_idle.rst b/Documentation/admin-guide/pm/intel_idle.rst
new file mode 100644
index 000000000000..afbf778035f8
--- /dev/null
+++ b/Documentation/admin-guide/pm/intel_idle.rst
@@ -0,0 +1,246 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+
+==============================================
+``intel_idle`` CPU Idle Time Management Driver
+==============================================
+
+:Copyright: |copy| 2020 Intel Corporation
+
+:Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+
+General Information
+===================
+
+``intel_idle`` is a part of the
+:doc:`CPU idle time management subsystem <cpuidle>` in the Linux kernel
+(``CPUIdle``). It is the default CPU idle time management driver for the
+Nehalem and later generations of Intel processors, but the level of support for
+a particular processor model in it depends on whether or not it recognizes that
+processor model and may also depend on information coming from the platform
+firmware. [To understand ``intel_idle`` it is necessary to know how ``CPUIdle``
+works in general, so this is the time to get familiar with :doc:`cpuidle` if you
+have not done that yet.]
+
+``intel_idle`` uses the ``MWAIT`` instruction to inform the processor that the
+logical CPU executing it is idle and so it may be possible to put some of the
+processor's functional blocks into low-power states. That instruction takes two
+arguments (passed in the ``EAX`` and ``ECX`` registers of the target CPU), the
+first of which, referred to as a *hint*, can be used by the processor to
+determine what can be done (for details refer to Intel Software Developer’s
+Manual [1]_). Accordingly, ``intel_idle`` refuses to work with processors in
+which the support for the ``MWAIT`` instruction has been disabled (for example,
+via the platform firmware configuration menu) or which do not support that
+instruction at all.
+
+``intel_idle`` is not modular, so it cannot be unloaded, which means that the
+only way to pass early-configuration-time parameters to it is via the kernel
+command line.
+
+
+.. _intel-idle-enumeration-of-states:
+
+Enumeration of Idle States
+==========================
+
+Each ``MWAIT`` hint value is interpreted by the processor as a license to
+reconfigure itself in a certain way in order to save energy. The processor
+configurations (with reduced power draw) resulting from that are referred to
+as C-states (in the ACPI terminology) or idle states. The list of meaningful
+``MWAIT`` hint values and idle states (i.e. low-power configurations of the
+processor) corresponding to them depends on the processor model and it may also
+depend on the configuration of the platform.
+
+In order to create a list of available idle states required by the ``CPUIdle``
+subsystem (see :ref:`idle-states-representation` in :doc:`cpuidle`),
+``intel_idle`` can use two sources of information: static tables of idle states
+for different processor models included in the driver itself and the ACPI tables
+of the system. The former are always used if the processor model at hand is
+recognized by ``intel_idle`` and the latter are used if that is required for
+the given processor model (which is the case for all server processor models
+recognized by ``intel_idle``) or if the processor model is not recognized.
+
+If the ACPI tables are going to be used for building the list of available idle
+states, ``intel_idle`` first looks for a ``_CST`` object under one of the ACPI
+objects corresponding to the CPUs in the system (refer to the ACPI specification
+[2]_ for the description of ``_CST`` and its output package). Because the
+``CPUIdle`` subsystem expects that the list of idle states supplied by the
+driver will be suitable for all of the CPUs handled by it and ``intel_idle`` is
+registered as the ``CPUIdle`` driver for all of the CPUs in the system, the
+driver looks for the first ``_CST`` object returning at least one valid idle
+state description and such that all of the idle states included in its return
+package are of the FFH (Functional Fixed Hardware) type, which means that the
+``MWAIT`` instruction is expected to be used to tell the processor that it can
+enter one of them. The return package of that ``_CST`` is then assumed to be
+applicable to all of the other CPUs in the system and the idle state
+descriptions extracted from it are stored in a preliminary list of idle states
+coming from the ACPI tables. [This step is skipped if ``intel_idle`` is
+configured to ignore the ACPI tables; see `below <intel-idle-parameters_>`_.]
+
+Next, the first (index 0) entry in the list of available idle states is
+initialized to represent a "polling idle state" (a pseudo-idle state in which
+the target CPU continuously fetches and executes instructions), and the
+subsequent (real) idle state entries are populated as follows.
+
+If the processor model at hand is recognized by ``intel_idle``, there is a
+(static) table of idle state descriptions for it in the driver. In that case,
+the "internal" table is the primary source of information on idle states and the
+information from it is copied to the final list of available idle states. If
+using the ACPI tables for the enumeration of idle states is not required
+(depending on the processor model), all of the listed idle state are enabled by
+default (so all of them will be taken into consideration by ``CPUIdle``
+governors during CPU idle state selection). Otherwise, some of the listed idle
+states may not be enabled by default if there are no matching entries in the
+preliminary list of idle states coming from the ACPI tables. In that case user
+space still can enable them later (on a per-CPU basis) with the help of
+the ``disable`` idle state attribute in ``sysfs`` (see
+:ref:`idle-states-representation` in :doc:`cpuidle`). This basically means that
+the idle states "known" to the driver may not be enabled by default if they have
+not been exposed by the platform firmware (through the ACPI tables).
+
+If the given processor model is not recognized by ``intel_idle``, but it
+supports ``MWAIT``, the preliminary list of idle states coming from the ACPI
+tables is used for building the final list that will be supplied to the
+``CPUIdle`` core during driver registration. For each idle state in that list,
+the description, ``MWAIT`` hint and exit latency are copied to the corresponding
+entry in the final list of idle states. The name of the idle state represented
+by it (to be returned by the ``name`` idle state attribute in ``sysfs``) is
+"CX_ACPI", where X is the index of that idle state in the final list (note that
+the minimum value of X is 1, because 0 is reserved for the "polling" state), and
+its target residency is based on the exit latency value. Specifically, for
+C1-type idle states the exit latency value is also used as the target residency
+(for compatibility with the majority of the "internal" tables of idle states for
+various processor models recognized by ``intel_idle``) and for the other idle
+state types (C2 and C3) the target residency value is 3 times the exit latency
+(again, that is because it reflects the target residency to exit latency ratio
+in the majority of cases for the processor models recognized by ``intel_idle``).
+All of the idle states in the final list are enabled by default in this case.
+
+
+.. _intel-idle-initialization:
+
+Initialization
+==============
+
+The initialization of ``intel_idle`` starts with checking if the kernel command
+line options forbid the use of the ``MWAIT`` instruction. If that is the case,
+an error code is returned right away.
+
+The next step is to check whether or not the processor model is known to the
+driver, which determines the idle states enumeration method (see
+`above <intel-idle-enumeration-of-states_>`_), and whether or not the processor
+supports ``MWAIT`` (the initialization fails if that is not the case). Then,
+the ``MWAIT`` support in the processor is enumerated through ``CPUID`` and the
+driver initialization fails if the level of support is not as expected (for
+example, if the total number of ``MWAIT`` substates returned is 0).
+
+Next, if the driver is not configured to ignore the ACPI tables (see
+`below <intel-idle-parameters_>`_), the idle states information provided by the
+platform firmware is extracted from them.
+
+Then, ``CPUIdle`` device objects are allocated for all CPUs and the list of
+available idle states is created as explained
+`above <intel-idle-enumeration-of-states_>`_.
+
+Finally, ``intel_idle`` is registered with the help of cpuidle_register_driver()
+as the ``CPUIdle`` driver for all CPUs in the system and a CPU online callback
+for configuring individual CPUs is registered via cpuhp_setup_state(), which
+(among other things) causes the callback routine to be invoked for all of the
+CPUs present in the system at that time (each CPU executes its own instance of
+the callback routine). That routine registers a ``CPUIdle`` device for the CPU
+running it (which enables the ``CPUIdle`` subsystem to operate that CPU) and
+optionally performs some CPU-specific initialization actions that may be
+required for the given processor model.
+
+
+.. _intel-idle-parameters:
+
+Kernel Command Line Options and Module Parameters
+=================================================
+
+The *x86* architecture support code recognizes three kernel command line
+options related to CPU idle time management: ``idle=poll``, ``idle=halt``,
+and ``idle=nomwait``. If any of them is present in the kernel command line, the
+``MWAIT`` instruction is not allowed to be used, so the initialization of
+``intel_idle`` will fail.
+
+Apart from that there are two module parameters recognized by ``intel_idle``
+itself that can be set via the kernel command line (they cannot be updated via
+sysfs, so that is the only way to change their values).
+
+The ``max_cstate`` parameter value is the maximum idle state index in the list
+of idle states supplied to the ``CPUIdle`` core during the registration of the
+driver. It is also the maximum number of regular (non-polling) idle states that
+can be used by ``intel_idle``, so the enumeration of idle states is terminated
+after finding that number of usable idle states (the other idle states that
+potentially might have been used if ``max_cstate`` had been greater are not
+taken into consideration at all). Setting ``max_cstate`` can prevent
+``intel_idle`` from exposing idle states that are regarded as "too deep" for
+some reason to the ``CPUIdle`` core, but it does so by making them effectively
+invisible until the system is shut down and started again which may not always
+be desirable. In practice, it is only really necessary to do that if the idle
+states in question cannot be enabled during system startup, because in the
+working state of the system the CPU power management quality of service (PM
+QoS) feature can be used to prevent ``CPUIdle`` from touching those idle states
+even if they have been enumerated (see :ref:`cpu-pm-qos` in :doc:`cpuidle`).
+Setting ``max_cstate`` to 0 causes the ``intel_idle`` initialization to fail.
+
+The ``noacpi`` module parameter (which is recognized by ``intel_idle`` if the
+kernel has been configured with ACPI support), can be set to make the driver
+ignore the system's ACPI tables entirely (it is unset by default).
+
+
+.. _intel-idle-core-and-package-idle-states:
+
+Core and Package Levels of Idle States
+======================================
+
+Typically, in a processor supporting the ``MWAIT`` instruction there are (at
+least) two levels of idle states (or C-states). One level, referred to as
+"core C-states", covers individual cores in the processor, whereas the other
+level, referred to as "package C-states", covers the entire processor package
+and it may also involve other components of the system (GPUs, memory
+controllers, I/O hubs etc.).
+
+Some of the ``MWAIT`` hint values allow the processor to use core C-states only
+(most importantly, that is the case for the ``MWAIT`` hint value corresponding
+to the ``C1`` idle state), but the majority of them give it a license to put
+the target core (i.e. the core containing the logical CPU executing ``MWAIT``
+with the given hint value) into a specific core C-state and then (if possible)
+to enter a specific package C-state at the deeper level. For example, the
+``MWAIT`` hint value representing the ``C3`` idle state allows the processor to
+put the target core into the low-power state referred to as "core ``C3``" (or
+``CC3``), which happens if all of the logical CPUs (SMT siblings) in that core
+have executed ``MWAIT`` with the ``C3`` hint value (or with a hint value
+representing a deeper idle state), and in addition to that (in the majority of
+cases) it gives the processor a license to put the entire package (possibly
+including some non-CPU components such as a GPU or a memory controller) into the
+low-power state referred to as "package ``C3``" (or ``PC3``), which happens if
+all of the cores have gone into the ``CC3`` state and (possibly) some additional
+conditions are satisfied (for instance, if the GPU is covered by ``PC3``, it may
+be required to be in a certain GPU-specific low-power state for ``PC3`` to be
+reachable).
+
+As a rule, there is no simple way to make the processor use core C-states only
+if the conditions for entering the corresponding package C-states are met, so
+the logical CPU executing ``MWAIT`` with a hint value that is not core-level
+only (like for ``C1``) must always assume that this may cause the processor to
+enter a package C-state. [That is why the exit latency and target residency
+values corresponding to the majority of ``MWAIT`` hint values in the "internal"
+tables of idle states in ``intel_idle`` reflect the properties of package
+C-states.] If using package C-states is not desirable at all, either
+:ref:`PM QoS <cpu-pm-qos>` or the ``max_cstate`` module parameter of
+``intel_idle`` described `above <intel-idle-parameters_>`_ must be used to
+restrict the range of permissible idle states to the ones with core-level only
+``MWAIT`` hint values (like ``C1``).
+
+
+References
+==========
+
+.. [1] *Intel® 64 and IA-32 Architectures Software Developer’s Manual Volume 2B*,
+ https://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-vol-2b-manual.html
+
+.. [2] *Advanced Configuration and Power Interface (ACPI) Specification*,
+ https://uefi.org/specifications
diff --git a/Documentation/admin-guide/pm/working-state.rst b/Documentation/admin-guide/pm/working-state.rst
index fc298eb1234b..88f717e59a42 100644
--- a/Documentation/admin-guide/pm/working-state.rst
+++ b/Documentation/admin-guide/pm/working-state.rst
@@ -8,6 +8,7 @@ Working-State Power Management
:maxdepth: 2
cpuidle
+ intel_idle
cpufreq
intel_pstate
intel_epb
diff --git a/Documentation/admin-guide/thunderbolt.rst b/Documentation/admin-guide/thunderbolt.rst
index 898ad78f3cc7..10c4f0ce2ad0 100644
--- a/Documentation/admin-guide/thunderbolt.rst
+++ b/Documentation/admin-guide/thunderbolt.rst
@@ -1,6 +1,28 @@
-=============
- Thunderbolt
-=============
+.. SPDX-License-Identifier: GPL-2.0
+
+======================
+ USB4 and Thunderbolt
+======================
+USB4 is the public specification based on Thunderbolt 3 protocol with
+some differences at the register level among other things. Connection
+manager is an entity running on the host router (host controller)
+responsible for enumerating routers and establishing tunnels. A
+connection manager can be implemented either in firmware or software.
+Typically PCs come with a firmware connection manager for Thunderbolt 3
+and early USB4 capable systems. Apple systems on the other hand use
+software connection manager and the later USB4 compliant devices follow
+the suit.
+
+The Linux Thunderbolt driver supports both and can detect at runtime which
+connection manager implementation is to be used. To be on the safe side the
+software connection manager in Linux also advertises security level
+``user`` which means PCIe tunneling is disabled by default. The
+documentation below applies to both implementations with the exception that
+the software connection manager only supports ``user`` security level and
+is expected to be accompanied with an IOMMU based DMA protection.
+
+Security levels and how to use them
+-----------------------------------
The interface presented here is not meant for end users. Instead there
should be a userspace tool that handles all the low-level details, keeps
a database of the authorized devices and prompts users for new connections.
@@ -18,8 +40,6 @@ This will authorize all devices automatically when they appear. However,
keep in mind that this bypasses the security levels and makes the system
vulnerable to DMA attacks.
-Security levels and how to use them
------------------------------------
Starting with Intel Falcon Ridge Thunderbolt controller there are 4
security levels available. Intel Titan Ridge added one more security level
(usbonly). The reason for these is the fact that the connected devices can
diff --git a/Documentation/admin-guide/xfs.rst b/Documentation/admin-guide/xfs.rst
index fb5b39f73059..ad911be5b5e9 100644
--- a/Documentation/admin-guide/xfs.rst
+++ b/Documentation/admin-guide/xfs.rst
@@ -253,7 +253,7 @@ The following sysctls are available for the XFS filesystem:
pool.
fs.xfs.speculative_prealloc_lifetime
- (Units: seconds Min: 1 Default: 300 Max: 86400)
+ (Units: seconds Min: 1 Default: 300 Max: 86400)
The interval at which the background scanning for inodes
with unused speculative preallocation runs. The scan
removes unused preallocation from clean inodes and releases
diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index b6e44884e3ad..41937a8091aa 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -117,6 +117,8 @@ infrastructure:
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
+ | RNDR | [63-60] | y |
+ +------------------------------+---------+---------+
| TS | [55-52] | y |
+------------------------------+---------+---------+
| FHM | [51-48] | y |
@@ -200,6 +202,12 @@ infrastructure:
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
+ | I8MM | [55-52] | y |
+ +------------------------------+---------+---------+
+ | DGH | [51-48] | y |
+ +------------------------------+---------+---------+
+ | BF16 | [47-44] | y |
+ +------------------------------+---------+---------+
| SB | [39-36] | y |
+------------------------------+---------+---------+
| FRINTTS | [35-32] | y |
@@ -234,10 +242,18 @@ infrastructure:
+------------------------------+---------+---------+
| Name | bits | visible |
+------------------------------+---------+---------+
+ | F64MM | [59-56] | y |
+ +------------------------------+---------+---------+
+ | F32MM | [55-52] | y |
+ +------------------------------+---------+---------+
+ | I8MM | [47-44] | y |
+ +------------------------------+---------+---------+
| SM4 | [43-40] | y |
+------------------------------+---------+---------+
| SHA3 | [35-32] | y |
+------------------------------+---------+---------+
+ | BF16 | [23-20] | y |
+ +------------------------------+---------+---------+
| BitPerm | [19-16] | y |
+------------------------------+---------+---------+
| AES | [7-4] | y |
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 7fa3d215ae6a..7dfb97dfe416 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -204,6 +204,37 @@ HWCAP2_FRINT
Functionality implied by ID_AA64ISAR1_EL1.FRINTTS == 0b0001.
+HWCAP2_SVEI8MM
+
+ Functionality implied by ID_AA64ZFR0_EL1.I8MM == 0b0001.
+
+HWCAP2_SVEF32MM
+
+ Functionality implied by ID_AA64ZFR0_EL1.F32MM == 0b0001.
+
+HWCAP2_SVEF64MM
+
+ Functionality implied by ID_AA64ZFR0_EL1.F64MM == 0b0001.
+
+HWCAP2_SVEBF16
+
+ Functionality implied by ID_AA64ZFR0_EL1.BF16 == 0b0001.
+
+HWCAP2_I8MM
+
+ Functionality implied by ID_AA64ISAR1_EL1.I8MM == 0b0001.
+
+HWCAP2_BF16
+
+ Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0001.
+
+HWCAP2_DGH
+
+ Functionality implied by ID_AA64ISAR1_EL1.DGH == 0b0001.
+
+HWCAP2_RNG
+
+ Functionality implied by ID_AA64ISAR0_EL1.RNDR == 0b0001.
4. Unused AT_HWCAP bits
-----------------------
diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
index 99b2545455ff..9120e59578dc 100644
--- a/Documentation/arm64/silicon-errata.rst
+++ b/Documentation/arm64/silicon-errata.rst
@@ -88,6 +88,8 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A76 | #1463225 | ARM64_ERRATUM_1463225 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A55 | #1530923 | ARM64_ERRATUM_1530923 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1188873,1418040| ARM64_ERRATUM_1418040 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-N1 | #1349291 | N/A |
diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst
index f55c2bb74d00..32ea57483378 100644
--- a/Documentation/asm-annotations.rst
+++ b/Documentation/asm-annotations.rst
@@ -73,10 +73,11 @@ The new macros are prefixed with the ``SYM_`` prefix and can be divided into
three main groups:
1. ``SYM_FUNC_*`` -- to annotate C-like functions. This means functions with
- standard C calling conventions, i.e. the stack contains a return address at
- the predefined place and a return from the function can happen in a
- standard way. When frame pointers are enabled, save/restore of frame
- pointer shall happen at the start/end of a function, respectively, too.
+ standard C calling conventions. For example, on x86, this means that the
+ stack contains a return address at the predefined place and a return from
+ the function can happen in a standard way. When frame pointers are enabled,
+ save/restore of frame pointer shall happen at the start/end of a function,
+ respectively, too.
Checking tools like ``objtool`` should ensure such marked functions conform
to these rules. The tools can also easily annotate these functions with
diff --git a/Documentation/block/biovecs.rst b/Documentation/block/biovecs.rst
index 86fa66c87172..ad303a2569d3 100644
--- a/Documentation/block/biovecs.rst
+++ b/Documentation/block/biovecs.rst
@@ -47,7 +47,7 @@ Having a real iterator, and making biovecs immutable, has a number of
advantages:
* Before, iterating over bios was very awkward when you weren't processing
- exactly one bvec at a time - for example, bio_copy_data() in fs/bio.c,
+ exactly one bvec at a time - for example, bio_copy_data() in block/bio.c,
which copies the contents of one bio into another. Because the biovecs
wouldn't necessarily be the same size, the old code was tricky convoluted -
it had to walk two different bios at the same time, keeping both bi_idx and
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index ab0eae1c153a..bc0c727d7fd8 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst
@@ -39,6 +39,8 @@ Core utilities
../RCU/index
gcc-plugins
symbol-namespaces
+ padata
+ ioctl
Interfaces for kernel debugging
diff --git a/Documentation/core-api/ioctl.rst b/Documentation/core-api/ioctl.rst
new file mode 100644
index 000000000000..c455db0e1627
--- /dev/null
+++ b/Documentation/core-api/ioctl.rst
@@ -0,0 +1,253 @@
+======================
+ioctl based interfaces
+======================
+
+ioctl() is the most common way for applications to interface
+with device drivers. It is flexible and easily extended by adding new
+commands and can be passed through character devices, block devices as
+well as sockets and other special file descriptors.
+
+However, it is also very easy to get ioctl command definitions wrong,
+and hard to fix them later without breaking existing applications,
+so this documentation tries to help developers get it right.
+
+Command number definitions
+==========================
+
+The command number, or request number, is the second argument passed to
+the ioctl system call. While this can be any 32-bit number that uniquely
+identifies an action for a particular driver, there are a number of
+conventions around defining them.
+
+``include/uapi/asm-generic/ioctl.h`` provides four macros for defining
+ioctl commands that follow modern conventions: ``_IO``, ``_IOR``,
+``_IOW``, and ``_IOWR``. These should be used for all new commands,
+with the correct parameters:
+
+_IO/_IOR/_IOW/_IOWR
+ The macro name specifies how the argument will be used.  It may be a
+ pointer to data to be passed into the kernel (_IOW), out of the kernel
+ (_IOR), or both (_IOWR).  _IO can indicate either commands with no
+ argument or those passing an integer value instead of a pointer.
+ It is recommended to only use _IO for commands without arguments,
+ and use pointers for passing data.
+
+type
+ An 8-bit number, often a character literal, specific to a subsystem
+ or driver, and listed in :doc:`../userspace-api/ioctl/ioctl-number`
+
+nr
+ An 8-bit number identifying the specific command, unique for a give
+ value of 'type'
+
+data_type
+ The name of the data type pointed to by the argument, the command number
+ encodes the ``sizeof(data_type)`` value in a 13-bit or 14-bit integer,
+ leading to a limit of 8191 bytes for the maximum size of the argument.
+ Note: do not pass sizeof(data_type) type into _IOR/_IOW/IOWR, as that
+ will lead to encoding sizeof(sizeof(data_type)), i.e. sizeof(size_t).
+ _IO does not have a data_type parameter.
+
+
+Interface versions
+==================
+
+Some subsystems use version numbers in data structures to overload
+commands with different interpretations of the argument.
+
+This is generally a bad idea, since changes to existing commands tend
+to break existing applications.
+
+A better approach is to add a new ioctl command with a new number. The
+old command still needs to be implemented in the kernel for compatibility,
+but this can be a wrapper around the new implementation.
+
+Return code
+===========
+
+ioctl commands can return negative error codes as documented in errno(3);
+these get turned into errno values in user space. On success, the return
+code should be zero. It is also possible but not recommended to return
+a positive 'long' value.
+
+When the ioctl callback is called with an unknown command number, the
+handler returns either -ENOTTY or -ENOIOCTLCMD, which also results in
+-ENOTTY being returned from the system call. Some subsystems return
+-ENOSYS or -EINVAL here for historic reasons, but this is wrong.
+
+Prior to Linux 5.5, compat_ioctl handlers were required to return
+-ENOIOCTLCMD in order to use the fallback conversion into native
+commands. As all subsystems are now responsible for handling compat
+mode themselves, this is no longer needed, but it may be important to
+consider when backporting bug fixes to older kernels.
+
+Timestamps
+==========
+
+Traditionally, timestamps and timeout values are passed as ``struct
+timespec`` or ``struct timeval``, but these are problematic because of
+incompatible definitions of these structures in user space after the
+move to 64-bit time_t.
+
+The ``struct __kernel_timespec`` type can be used instead to be embedded
+in other data structures when separate second/nanosecond values are
+desired, or passed to user space directly. This is still not ideal though,
+as the structure matches neither the kernel's timespec64 nor the user
+space timespec exactly. The get_timespec64() and put_timespec64() helper
+functions can be used to ensure that the layout remains compatible with
+user space and the padding is treated correctly.
+
+As it is cheap to convert seconds to nanoseconds, but the opposite
+requires an expensive 64-bit division, a simple __u64 nanosecond value
+can be simpler and more efficient.
+
+Timeout values and timestamps should ideally use CLOCK_MONOTONIC time,
+as returned by ktime_get_ns() or ktime_get_ts64(). Unlike
+CLOCK_REALTIME, this makes the timestamps immune from jumping backwards
+or forwards due to leap second adjustments and clock_settime() calls.
+
+ktime_get_real_ns() can be used for CLOCK_REALTIME timestamps that
+need to be persistent across a reboot or between multiple machines.
+
+32-bit compat mode
+==================
+
+In order to support 32-bit user space running on a 64-bit machine, each
+subsystem or driver that implements an ioctl callback handler must also
+implement the corresponding compat_ioctl handler.
+
+As long as all the rules for data structures are followed, this is as
+easy as setting the .compat_ioctl pointer to a helper function such as
+compat_ptr_ioctl() or blkdev_compat_ptr_ioctl().
+
+compat_ptr()
+------------
+
+On the s390 architecture, 31-bit user space has ambiguous representations
+for data pointers, with the upper bit being ignored. When running such
+a process in compat mode, the compat_ptr() helper must be used to
+clear the upper bit of a compat_uptr_t and turn it into a valid 64-bit
+pointer. On other architectures, this macro only performs a cast to a
+``void __user *`` pointer.
+
+In an compat_ioctl() callback, the last argument is an unsigned long,
+which can be interpreted as either a pointer or a scalar depending on
+the command. If it is a scalar, then compat_ptr() must not be used, to
+ensure that the 64-bit kernel behaves the same way as a 32-bit kernel
+for arguments with the upper bit set.
+
+The compat_ptr_ioctl() helper can be used in place of a custom
+compat_ioctl file operation for drivers that only take arguments that
+are pointers to compatible data structures.
+
+Structure layout
+----------------
+
+Compatible data structures have the same layout on all architectures,
+avoiding all problematic members:
+
+* ``long`` and ``unsigned long`` are the size of a register, so
+ they can be either 32-bit or 64-bit wide and cannot be used in portable
+ data structures. Fixed-length replacements are ``__s32``, ``__u32``,
+ ``__s64`` and ``__u64``.
+
+* Pointers have the same problem, in addition to requiring the
+ use of compat_ptr(). The best workaround is to use ``__u64``
+ in place of pointers, which requires a cast to ``uintptr_t`` in user
+ space, and the use of u64_to_user_ptr() in the kernel to convert
+ it back into a user pointer.
+
+* On the x86-32 (i386) architecture, the alignment of 64-bit variables
+ is only 32-bit, but they are naturally aligned on most other
+ architectures including x86-64. This means a structure like::
+
+ struct foo {
+ __u32 a;
+ __u64 b;
+ __u32 c;
+ };
+
+ has four bytes of padding between a and b on x86-64, plus another four
+ bytes of padding at the end, but no padding on i386, and it needs a
+ compat_ioctl conversion handler to translate between the two formats.
+
+ To avoid this problem, all structures should have their members
+ naturally aligned, or explicit reserved fields added in place of the
+ implicit padding. The ``pahole`` tool can be used for checking the
+ alignment.
+
+* On ARM OABI user space, structures are padded to multiples of 32-bit,
+ making some structs incompatible with modern EABI kernels if they
+ do not end on a 32-bit boundary.
+
+* On the m68k architecture, struct members are not guaranteed to have an
+ alignment greater than 16-bit, which is a problem when relying on
+ implicit padding.
+
+* Bitfields and enums generally work as one would expect them to,
+ but some properties of them are implementation-defined, so it is better
+ to avoid them completely in ioctl interfaces.
+
+* ``char`` members can be either signed or unsigned, depending on
+ the architecture, so the __u8 and __s8 types should be used for 8-bit
+ integer values, though char arrays are clearer for fixed-length strings.
+
+Information leaks
+=================
+
+Uninitialized data must not be copied back to user space, as this can
+cause an information leak, which can be used to defeat kernel address
+space layout randomization (KASLR), helping in an attack.
+
+For this reason (and for compat support) it is best to avoid any
+implicit padding in data structures.  Where there is implicit padding
+in an existing structure, kernel drivers must be careful to fully
+initialize an instance of the structure before copying it to user
+space.  This is usually done by calling memset() before assigning to
+individual members.
+
+Subsystem abstractions
+======================
+
+While some device drivers implement their own ioctl function, most
+subsystems implement the same command for multiple drivers. Ideally the
+subsystem has an .ioctl() handler that copies the arguments from and
+to user space, passing them into subsystem specific callback functions
+through normal kernel pointers.
+
+This helps in various ways:
+
+* Applications written for one driver are more likely to work for
+ another one in the same subsystem if there are no subtle differences
+ in the user space ABI.
+
+* The complexity of user space access and data structure layout is done
+ in one place, reducing the potential for implementation bugs.
+
+* It is more likely to be reviewed by experienced developers
+ that can spot problems in the interface when the ioctl is shared
+ between multiple drivers than when it is only used in a single driver.
+
+Alternatives to ioctl
+=====================
+
+There are many cases in which ioctl is not the best solution for a
+problem. Alternatives include:
+
+* System calls are a better choice for a system-wide feature that
+ is not tied to a physical device or constrained by the file system
+ permissions of a character device node
+
+* netlink is the preferred way of configuring any network related
+ objects through sockets.
+
+* debugfs is used for ad-hoc interfaces for debugging functionality
+ that does not need to be exposed as a stable interface to applications.
+
+* sysfs is a good way to expose the state of an in-kernel object
+ that is not tied to a file descriptor.
+
+* configfs can be used for more complex configuration than sysfs
+
+* A custom file system can provide extra flexibility with a simple
+ user interface but adds a lot of complexity to the implementation.
diff --git a/Documentation/core-api/padata.rst b/Documentation/core-api/padata.rst
new file mode 100644
index 000000000000..9a24c111781d
--- /dev/null
+++ b/Documentation/core-api/padata.rst
@@ -0,0 +1,169 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================================
+The padata parallel execution mechanism
+=======================================
+
+:Date: December 2019
+
+Padata is a mechanism by which the kernel can farm jobs out to be done in
+parallel on multiple CPUs while retaining their ordering. It was developed for
+use with the IPsec code, which needs to be able to perform encryption and
+decryption on large numbers of packets without reordering those packets. The
+crypto developers made a point of writing padata in a sufficiently general
+fashion that it could be put to other uses as well.
+
+Usage
+=====
+
+Initializing
+------------
+
+The first step in using padata is to set up a padata_instance structure for
+overall control of how jobs are to be run::
+
+ #include <linux/padata.h>
+
+ struct padata_instance *padata_alloc_possible(const char *name);
+
+'name' simply identifies the instance.
+
+There are functions for enabling and disabling the instance::
+
+ int padata_start(struct padata_instance *pinst);
+ void padata_stop(struct padata_instance *pinst);
+
+These functions are setting or clearing the "PADATA_INIT" flag; if that flag is
+not set, other functions will refuse to work. padata_start() returns zero on
+success (flag set) or -EINVAL if the padata cpumask contains no active CPU
+(flag not set). padata_stop() clears the flag and blocks until the padata
+instance is unused.
+
+Finally, complete padata initialization by allocating a padata_shell::
+
+ struct padata_shell *padata_alloc_shell(struct padata_instance *pinst);
+
+A padata_shell is used to submit a job to padata and allows a series of such
+jobs to be serialized independently. A padata_instance may have one or more
+padata_shells associated with it, each allowing a separate series of jobs.
+
+Modifying cpumasks
+------------------
+
+The CPUs used to run jobs can be changed in two ways, programatically with
+padata_set_cpumask() or via sysfs. The former is defined::
+
+ int padata_set_cpumask(struct padata_instance *pinst, int cpumask_type,
+ cpumask_var_t cpumask);
+
+Here cpumask_type is one of PADATA_CPU_PARALLEL or PADATA_CPU_SERIAL, where a
+parallel cpumask describes which processors will be used to execute jobs
+submitted to this instance in parallel and a serial cpumask defines which
+processors are allowed to be used as the serialization callback processor.
+cpumask specifies the new cpumask to use.
+
+There may be sysfs files for an instance's cpumasks. For example, pcrypt's
+live in /sys/kernel/pcrypt/<instance-name>. Within an instance's directory
+there are two files, parallel_cpumask and serial_cpumask, and either cpumask
+may be changed by echoing a bitmask into the file, for example::
+
+ echo f > /sys/kernel/pcrypt/pencrypt/parallel_cpumask
+
+Reading one of these files shows the user-supplied cpumask, which may be
+different from the 'usable' cpumask.
+
+Padata maintains two pairs of cpumasks internally, the user-supplied cpumasks
+and the 'usable' cpumasks. (Each pair consists of a parallel and a serial
+cpumask.) The user-supplied cpumasks default to all possible CPUs on instance
+allocation and may be changed as above. The usable cpumasks are always a
+subset of the user-supplied cpumasks and contain only the online CPUs in the
+user-supplied masks; these are the cpumasks padata actually uses. So it is
+legal to supply a cpumask to padata that contains offline CPUs. Once an
+offline CPU in the user-supplied cpumask comes online, padata is going to use
+it.
+
+Changing the CPU masks are expensive operations, so it should not be done with
+great frequency.
+
+Running A Job
+-------------
+
+Actually submitting work to the padata instance requires the creation of a
+padata_priv structure, which represents one job::
+
+ struct padata_priv {
+ /* Other stuff here... */
+ void (*parallel)(struct padata_priv *padata);
+ void (*serial)(struct padata_priv *padata);
+ };
+
+This structure will almost certainly be embedded within some larger
+structure specific to the work to be done. Most of its fields are private to
+padata, but the structure should be zeroed at initialisation time, and the
+parallel() and serial() functions should be provided. Those functions will
+be called in the process of getting the work done as we will see
+momentarily.
+
+The submission of the job is done with::
+
+ int padata_do_parallel(struct padata_shell *ps,
+ struct padata_priv *padata, int *cb_cpu);
+
+The ps and padata structures must be set up as described above; cb_cpu
+points to the preferred CPU to be used for the final callback when the job is
+done; it must be in the current instance's CPU mask (if not the cb_cpu pointer
+is updated to point to the CPU actually chosen). The return value from
+padata_do_parallel() is zero on success, indicating that the job is in
+progress. -EBUSY means that somebody, somewhere else is messing with the
+instance's CPU mask, while -EINVAL is a complaint about cb_cpu not being in the
+serial cpumask, no online CPUs in the parallel or serial cpumasks, or a stopped
+instance.
+
+Each job submitted to padata_do_parallel() will, in turn, be passed to
+exactly one call to the above-mentioned parallel() function, on one CPU, so
+true parallelism is achieved by submitting multiple jobs. parallel() runs with
+software interrupts disabled and thus cannot sleep. The parallel()
+function gets the padata_priv structure pointer as its lone parameter;
+information about the actual work to be done is probably obtained by using
+container_of() to find the enclosing structure.
+
+Note that parallel() has no return value; the padata subsystem assumes that
+parallel() will take responsibility for the job from this point. The job
+need not be completed during this call, but, if parallel() leaves work
+outstanding, it should be prepared to be called again with a new job before
+the previous one completes.
+
+Serializing Jobs
+----------------
+
+When a job does complete, parallel() (or whatever function actually finishes
+the work) should inform padata of the fact with a call to::
+
+ void padata_do_serial(struct padata_priv *padata);
+
+At some point in the future, padata_do_serial() will trigger a call to the
+serial() function in the padata_priv structure. That call will happen on
+the CPU requested in the initial call to padata_do_parallel(); it, too, is
+run with local software interrupts disabled.
+Note that this call may be deferred for a while since the padata code takes
+pains to ensure that jobs are completed in the order in which they were
+submitted.
+
+Destroying
+----------
+
+Cleaning up a padata instance predictably involves calling the three free
+functions that correspond to the allocation in reverse::
+
+ void padata_free_shell(struct padata_shell *ps);
+ void padata_stop(struct padata_instance *pinst);
+ void padata_free(struct padata_instance *pinst);
+
+It is the user's responsibility to ensure all outstanding jobs are complete
+before any of the above are called.
+
+Interface
+=========
+
+.. kernel-doc:: include/linux/padata.h
+.. kernel-doc:: kernel/padata.c
diff --git a/Documentation/core-api/xarray.rst b/Documentation/core-api/xarray.rst
index fcedc5349ace..640934b6f7b4 100644
--- a/Documentation/core-api/xarray.rst
+++ b/Documentation/core-api/xarray.rst
@@ -25,10 +25,6 @@ good performance with large indices. If your index can be larger than
``ULONG_MAX`` then the XArray is not the data type for you. The most
important user of the XArray is the page cache.
-Each non-``NULL`` entry in the array has three bits associated with
-it called marks. Each mark may be set or cleared independently of
-the others. You can iterate over entries which are marked.
-
Normal pointers may be stored in the XArray directly. They must be 4-byte
aligned, which is true for any pointer returned from kmalloc() and
alloc_page(). It isn't true for arbitrary user-space pointers,
@@ -41,12 +37,11 @@ When you retrieve an entry from the XArray, you can check whether it is
a value entry by calling xa_is_value(), and convert it back to
an integer by calling xa_to_value().
-Some users want to store tagged pointers instead of using the marks
-described above. They can call xa_tag_pointer() to create an
-entry with a tag, xa_untag_pointer() to turn a tagged entry
-back into an untagged pointer and xa_pointer_tag() to retrieve
-the tag of an entry. Tagged pointers use the same bits that are used
-to distinguish value entries from normal pointers, so each user must
+Some users want to tag the pointers they store in the XArray. You can
+call xa_tag_pointer() to create an entry with a tag, xa_untag_pointer()
+to turn a tagged entry back into an untagged pointer and xa_pointer_tag()
+to retrieve the tag of an entry. Tagged pointers use the same bits that
+are used to distinguish value entries from normal pointers, so you must
decide whether they want to store value entries or tagged pointers in
any particular XArray.
@@ -56,10 +51,9 @@ conflict with value entries or internal entries.
An unusual feature of the XArray is the ability to create entries which
occupy a range of indices. Once stored to, looking up any index in
the range will return the same entry as looking up any other index in
-the range. Setting a mark on one index will set it on all of them.
-Storing to any index will store to all of them. Multi-index entries can
-be explicitly split into smaller entries, or storing ``NULL`` into any
-entry will cause the XArray to forget about the range.
+the range. Storing to any index will store to all of them. Multi-index
+entries can be explicitly split into smaller entries, or storing ``NULL``
+into any entry will cause the XArray to forget about the range.
Normal API
==========
@@ -87,17 +81,11 @@ If you want to only store a new entry to an index if the current entry
at that index is ``NULL``, you can use xa_insert() which
returns ``-EBUSY`` if the entry is not empty.
-You can enquire whether a mark is set on an entry by using
-xa_get_mark(). If the entry is not ``NULL``, you can set a mark
-on it by using xa_set_mark() and remove the mark from an entry by
-calling xa_clear_mark(). You can ask whether any entry in the
-XArray has a particular mark set by calling xa_marked().
-
You can copy entries out of the XArray into a plain array by calling
-xa_extract(). Or you can iterate over the present entries in
-the XArray by calling xa_for_each(). You may prefer to use
-xa_find() or xa_find_after() to move to the next present
-entry in the XArray.
+xa_extract(). Or you can iterate over the present entries in the XArray
+by calling xa_for_each(), xa_for_each_start() or xa_for_each_range().
+You may prefer to use xa_find() or xa_find_after() to move to the next
+present entry in the XArray.
Calling xa_store_range() stores the same entry in a range
of indices. If you do this, some of the other operations will behave
@@ -124,6 +112,31 @@ xa_destroy(). If the XArray entries are pointers, you may wish
to free the entries first. You can do this by iterating over all present
entries in the XArray using the xa_for_each() iterator.
+Search Marks
+------------
+
+Each entry in the array has three bits associated with it called marks.
+Each mark may be set or cleared independently of the others. You can
+iterate over marked entries by using the xa_for_each_marked() iterator.
+
+You can enquire whether a mark is set on an entry by using
+xa_get_mark(). If the entry is not ``NULL``, you can set a mark on it
+by using xa_set_mark() and remove the mark from an entry by calling
+xa_clear_mark(). You can ask whether any entry in the XArray has a
+particular mark set by calling xa_marked(). Erasing an entry from the
+XArray causes all marks associated with that entry to be cleared.
+
+Setting or clearing a mark on any index of a multi-index entry will
+affect all indices covered by that entry. Querying the mark on any
+index will return the same result.
+
+There is no way to iterate over entries which are not marked; the data
+structure does not allow this to be implemented efficiently. There are
+not currently iterators to search for logical combinations of bits (eg
+iterate over all entries which have both ``XA_MARK_1`` and ``XA_MARK_2``
+set, or iterate over all entries which have ``XA_MARK_0`` or ``XA_MARK_2``
+set). It would be possible to add these if a user arises.
+
Allocating XArrays
------------------
@@ -180,6 +193,8 @@ No lock needed:
Takes RCU read lock:
* xa_load()
* xa_for_each()
+ * xa_for_each_start()
+ * xa_for_each_range()
* xa_find()
* xa_find_after()
* xa_extract()
@@ -419,10 +434,9 @@ you last processed. If you have interrupts disabled while iterating,
then it is good manners to pause the iteration and reenable interrupts
every ``XA_CHECK_SCHED`` entries.
-The xas_get_mark(), xas_set_mark() and
-xas_clear_mark() functions require the xa_state cursor to have
-been moved to the appropriate location in the xarray; they will do
-nothing if you have called xas_pause() or xas_set()
+The xas_get_mark(), xas_set_mark() and xas_clear_mark() functions require
+the xa_state cursor to have been moved to the appropriate location in the
+XArray; they will do nothing if you have called xas_pause() or xas_set()
immediately before.
You can call xas_set_update() to have a callback function
diff --git a/Documentation/crypto/devel-algos.rst b/Documentation/crypto/devel-algos.rst
index f9d288015acc..f225a953ab4b 100644
--- a/Documentation/crypto/devel-algos.rst
+++ b/Documentation/crypto/devel-algos.rst
@@ -31,33 +31,23 @@ The counterparts to those functions are listed below.
::
- int crypto_unregister_alg(struct crypto_alg *alg);
- int crypto_unregister_algs(struct crypto_alg *algs, int count);
+ void crypto_unregister_alg(struct crypto_alg *alg);
+ void crypto_unregister_algs(struct crypto_alg *algs, int count);
-Notice that both registration and unregistration functions do return a
-value, so make sure to handle errors. A return code of zero implies
-success. Any return code < 0 implies an error.
+The registration functions return 0 on success, or a negative errno
+value on failure. crypto_register_algs() succeeds only if it
+successfully registered all the given algorithms; if it fails partway
+through, then any changes are rolled back.
-The bulk registration/unregistration functions register/unregister each
-transformation in the given array of length count. They handle errors as
-follows:
-
-- crypto_register_algs() succeeds if and only if it successfully
- registers all the given transformations. If an error occurs partway
- through, then it rolls back successful registrations before returning
- the error code. Note that if a driver needs to handle registration
- errors for individual transformations, then it will need to use the
- non-bulk function crypto_register_alg() instead.
-
-- crypto_unregister_algs() tries to unregister all the given
- transformations, continuing on error. It logs errors and always
- returns zero.
+The unregistration functions always succeed, so they don't have a
+return value. Don't try to unregister algorithms that aren't
+currently registered.
Single-Block Symmetric Ciphers [CIPHER]
---------------------------------------
-Example of transformations: aes, arc4, ...
+Example of transformations: aes, serpent, ...
This section describes the simplest of all transformation
implementations, that being the CIPHER type used for symmetric ciphers.
@@ -108,7 +98,7 @@ is also valid:
Multi-Block Ciphers
-------------------
-Example of transformations: cbc(aes), ecb(arc4), ...
+Example of transformations: cbc(aes), chacha20, ...
This section describes the multi-block cipher transformation
implementations. The multi-block ciphers are used for transformations
@@ -169,10 +159,10 @@ are as follows:
::
- int crypto_unregister_ahash(struct ahash_alg *alg);
+ void crypto_unregister_ahash(struct ahash_alg *alg);
- int crypto_unregister_shash(struct shash_alg *alg);
- int crypto_unregister_shashes(struct shash_alg *algs, int count);
+ void crypto_unregister_shash(struct shash_alg *alg);
+ void crypto_unregister_shashes(struct shash_alg *algs, int count);
Cipher Definition With struct shash_alg and ahash_alg
diff --git a/Documentation/dev-tools/kcov.rst b/Documentation/dev-tools/kcov.rst
index 36890b026e77..1c4e1825d769 100644
--- a/Documentation/dev-tools/kcov.rst
+++ b/Documentation/dev-tools/kcov.rst
@@ -251,11 +251,11 @@ selectively from different subsystems.
.. code-block:: c
struct kcov_remote_arg {
- unsigned trace_mode;
- unsigned area_size;
- unsigned num_handles;
- uint64_t common_handle;
- uint64_t handles[0];
+ __u32 trace_mode;
+ __u32 area_size;
+ __u32 num_handles;
+ __aligned_u64 common_handle;
+ __aligned_u64 handles[0];
};
#define KCOV_INIT_TRACE _IOR('c', 1, unsigned long)
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
index ecdfdc9d4b03..61ae13c44f91 100644
--- a/Documentation/dev-tools/kselftest.rst
+++ b/Documentation/dev-tools/kselftest.rst
@@ -203,12 +203,12 @@ Test Module
Kselftest tests the kernel from userspace. Sometimes things need
testing from within the kernel, one method of doing this is to create a
test module. We can tie the module into the kselftest framework by
-using a shell script test runner. ``kselftest_module.sh`` is designed
+using a shell script test runner. ``kselftest/module.sh`` is designed
to facilitate this process. There is also a header file provided to
assist writing kernel modules that are for use with kselftest:
- ``tools/testing/kselftest/kselftest_module.h``
-- ``tools/testing/kselftest/kselftest_module.sh``
+- ``tools/testing/kselftest/kselftest/module.sh``
How to use
----------
@@ -247,7 +247,7 @@ A bare bones test module might look like this:
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
- #include "../tools/testing/selftests/kselftest_module.h"
+ #include "../tools/testing/selftests/kselftest/module.h"
KSTM_MODULE_GLOBALS();
@@ -276,7 +276,7 @@ Example test script
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
- $(dirname $0)/../kselftest_module.sh "foo" test_foo
+ $(dirname $0)/../kselftest/module.sh "foo" test_foo
Test Harness
diff --git a/Documentation/dev-tools/kunit/faq.rst b/Documentation/dev-tools/kunit/faq.rst
index bf2095112d89..ea55b2467653 100644
--- a/Documentation/dev-tools/kunit/faq.rst
+++ b/Documentation/dev-tools/kunit/faq.rst
@@ -29,7 +29,8 @@ Yes, well, mostly.
For the most part, the KUnit core framework (what you use to write the tests)
can compile to any architecture; it compiles like just another part of the
-kernel and runs when the kernel boots. However, there is some infrastructure,
+kernel and runs when the kernel boots, or when built as a module, when the
+module is loaded. However, there is some infrastructure,
like the KUnit Wrapper (``tools/testing/kunit/kunit.py``) that does not support
other architectures.
diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst
index 26ffb46bdf99..d16a4d2c3a41 100644
--- a/Documentation/dev-tools/kunit/index.rst
+++ b/Documentation/dev-tools/kunit/index.rst
@@ -9,6 +9,7 @@ KUnit - Unit Testing for the Linux Kernel
start
usage
+ kunit-tool
api/index
faq
@@ -48,6 +49,9 @@ to a standalone program that can be run like any other program directly inside
of a host operating system; to be clear, it does not require any virtualization
support; it is just a regular program.
+Alternatively, kunit and kunit tests can be built as modules and tests will
+run when the test module is loaded.
+
KUnit is fast. Excluding build time, from invocation to completion KUnit can run
several dozen tests in only 10 to 20 seconds; this might not sound like a big
deal to some people, but having such fast and easy to run tests fundamentally
diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst
new file mode 100644
index 000000000000..50d46394e97e
--- /dev/null
+++ b/Documentation/dev-tools/kunit/kunit-tool.rst
@@ -0,0 +1,57 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+kunit_tool How-To
+=================
+
+What is kunit_tool?
+===================
+
+kunit_tool is a script (``tools/testing/kunit/kunit.py``) that aids in building
+the Linux kernel as UML (`User Mode Linux
+<http://user-mode-linux.sourceforge.net/>`_), running KUnit tests, parsing
+the test results and displaying them in a user friendly manner.
+
+What is a kunitconfig?
+======================
+
+It's just a defconfig that kunit_tool looks for in the base directory.
+kunit_tool uses it to generate a .config as you might expect. In addition, it
+verifies that the generated .config contains the CONFIG options in the
+kunitconfig; the reason it does this is so that it is easy to be sure that a
+CONFIG that enables a test actually ends up in the .config.
+
+How do I use kunit_tool?
+========================
+
+If a kunitconfig is present at the root directory, all you have to do is:
+
+.. code-block:: bash
+
+ ./tools/testing/kunit/kunit.py run
+
+However, you most likely want to use it with the following options:
+
+.. code-block:: bash
+
+ ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all`
+
+- ``--timeout`` sets a maximum amount of time to allow tests to run.
+- ``--jobs`` sets the number of threads to use to build the kernel.
+
+If you just want to use the defconfig that ships with the kernel, you can
+append the ``--defconfig`` flag as well:
+
+.. code-block:: bash
+
+ ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all` --defconfig
+
+.. note::
+ This command is particularly helpful for getting started because it
+ just works. No kunitconfig needs to be present.
+
+For a list of all the flags supported by kunit_tool, you can run:
+
+.. code-block:: bash
+
+ ./tools/testing/kunit/kunit.py run --help
diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst
index aeeddfafeea2..4e1d24db6b13 100644
--- a/Documentation/dev-tools/kunit/start.rst
+++ b/Documentation/dev-tools/kunit/start.rst
@@ -19,21 +19,21 @@ The wrapper can be run with:
.. code-block:: bash
- ./tools/testing/kunit/kunit.py run
+ ./tools/testing/kunit/kunit.py run --defconfig
-Creating a kunitconfig
-======================
-The Python script is a thin wrapper around Kbuild as such, it needs to be
-configured with a ``kunitconfig`` file. This file essentially contains the
+For more information on this wrapper (also called kunit_tool) checkout the
+:doc:`kunit-tool` page.
+
+Creating a .kunitconfig
+=======================
+The Python script is a thin wrapper around Kbuild. As such, it needs to be
+configured with a ``.kunitconfig`` file. This file essentially contains the
regular Kernel config, with the specific test targets as well.
.. code-block:: bash
- git clone -b master https://kunit.googlesource.com/kunitconfig $PATH_TO_KUNITCONFIG_REPO
cd $PATH_TO_LINUX_REPO
- ln -s $PATH_TO_KUNIT_CONFIG_REPO/kunitconfig kunitconfig
-
-You may want to add kunitconfig to your local gitignore.
+ cp arch/um/configs/kunit_defconfig .kunitconfig
Verifying KUnit Works
---------------------
@@ -59,8 +59,8 @@ If everything worked correctly, you should see the following:
followed by a list of tests that are run. All of them should be passing.
.. note::
- Because it is building a lot of sources for the first time, the ``Building
- kunit kernel`` step may take a while.
+ Because it is building a lot of sources for the first time, the
+ ``Building KUnit kernel`` step may take a while.
Writing your first test
=======================
@@ -148,7 +148,7 @@ and the following to ``drivers/misc/Makefile``:
obj-$(CONFIG_MISC_EXAMPLE_TEST) += example-test.o
-Now add it to your ``kunitconfig``:
+Now add it to your ``.kunitconfig``:
.. code-block:: none
@@ -159,7 +159,7 @@ Now you can run the test:
.. code-block:: bash
- ./tools/testing/kunit/kunit.py
+ ./tools/testing/kunit/kunit.py run
You should see the following failure:
diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst
index c6e69634e274..7cd56a1993b1 100644
--- a/Documentation/dev-tools/kunit/usage.rst
+++ b/Documentation/dev-tools/kunit/usage.rst
@@ -16,7 +16,7 @@ Organization of this document
=============================
This document is organized into two main sections: Testing and Isolating
-Behavior. The first covers what a unit test is and how to use KUnit to write
+Behavior. The first covers what unit tests are and how to use KUnit to write
them. The second covers how to use KUnit to isolate code and make it possible
to unit test code that was otherwise un-unit-testable.
@@ -174,13 +174,13 @@ Test Suites
~~~~~~~~~~~
Now obviously one unit test isn't very helpful; the power comes from having
-many test cases covering all of your behaviors. Consequently it is common to
-have many *similar* tests; in order to reduce duplication in these closely
-related tests most unit testing frameworks provide the concept of a *test
-suite*, in KUnit we call it a *test suite*; all it is is just a collection of
-test cases for a unit of code with a set up function that gets invoked before
-every test cases and then a tear down function that gets invoked after every
-test case completes.
+many test cases covering all of a unit's behaviors. Consequently it is common
+to have many *similar* tests; in order to reduce duplication in these closely
+related tests most unit testing frameworks - including KUnit - provide the
+concept of a *test suite*. A *test suite* is just a collection of test cases
+for a unit of code with a set up function that gets invoked before every test
+case and then a tear down function that gets invoked after every test case
+completes.
Example:
@@ -211,7 +211,7 @@ KUnit test framework.
.. note::
A test case will only be run if it is associated with a test suite.
-For a more information on these types of things see the :doc:`api/test`.
+For more information on these types of things see the :doc:`api/test`.
Isolating Behavior
==================
@@ -338,7 +338,7 @@ We can easily test this code by *faking out* the underlying EEPROM:
return count;
}
- ssize_t fake_eeprom_write(struct eeprom *this, size_t offset, const char *buffer, size_t count)
+ ssize_t fake_eeprom_write(struct eeprom *parent, size_t offset, const char *buffer, size_t count)
{
struct fake_eeprom *this = container_of(parent, struct fake_eeprom, parent);
@@ -454,7 +454,7 @@ KUnit on non-UML architectures
By default KUnit uses UML as a way to provide dependencies for code under test.
Under most circumstances KUnit's usage of UML should be treated as an
implementation detail of how KUnit works under the hood. Nevertheless, there
-are instances where being able to run architecture specific code, or test
+are instances where being able to run architecture specific code or test
against real hardware is desirable. For these reasons KUnit supports running on
other architectures.
@@ -539,6 +539,22 @@ Interspersed in the kernel logs you might see the following:
Congratulations, you just ran a KUnit test on the x86 architecture!
+In a similar manner, kunit and kunit tests can also be built as modules,
+so if you wanted to run tests in this way you might add the following config
+options to your ``.config``:
+
+.. code-block:: none
+
+ CONFIG_KUNIT=m
+ CONFIG_KUNIT_EXAMPLE_TEST=m
+
+Once the kernel is built and installed, a simple
+
+.. code-block:: bash
+ modprobe example-test
+
+...will run the tests.
+
Writing new tests for other architectures
-----------------------------------------
@@ -557,7 +573,7 @@ run your tests on your hardware setup just by compiling for your architecture.
.. important::
Always prefer tests that run on UML to tests that only run under a particular
architecture, and always prefer tests that run under QEMU or another easy
- (and monitarily free) to obtain software environment to a specific piece of
+ (and monetarily free) to obtain software environment to a specific piece of
hardware.
Nevertheless, there are still valid reasons to write an architecture or hardware
diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards
index b2a9f9f8430b..96b1dad58253 100644
--- a/Documentation/devicetree/bindings/arm/arm-boards
+++ b/Documentation/devicetree/bindings/arm/arm-boards
@@ -121,7 +121,7 @@ Required properties (in root node):
Required nodes:
- soc: some node of the RealView platforms must be the SoC
- node that contain the SoC-specific devices, withe the compatible
+ node that contain the SoC-specific devices, with the compatible
string set to one of these tuples:
"arm,realview-eb-soc", "simple-bus"
"arm,realview-pb1176-soc", "simple-bus"
diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index 9fbde401a090..e003a553b986 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -10,6 +10,12 @@ PIT Timer required properties:
- interrupts: Should contain interrupt for the PIT which is the IRQ line
shared across all System Controller members.
+PIT64B Timer required properties:
+- compatible: Should be "microchip,sam9x60-pit64b"
+- reg: Should contain registers location and length
+- interrupts: Should contain interrupt for PIT64B timer
+- clocks: Should contain the available clock sources for PIT64B timer.
+
System Timer (ST) required properties:
- compatible: Should be "atmel,at91rm9200-st", "syscon", "simple-mfd"
- reg: Should contain registers location and length
diff --git a/Documentation/devicetree/bindings/arm/idle-states.txt b/Documentation/devicetree/bindings/arm/idle-states.txt
deleted file mode 100644
index 771f5d20ae18..000000000000
--- a/Documentation/devicetree/bindings/arm/idle-states.txt
+++ /dev/null
@@ -1,706 +0,0 @@
-==========================================
-ARM idle states binding description
-==========================================
-
-==========================================
-1 - Introduction
-==========================================
-
-ARM systems contain HW capable of managing power consumption dynamically,
-where cores can be put in different low-power states (ranging from simple
-wfi to power gating) according to OS PM policies. The CPU states representing
-the range of dynamic idle states that a processor can enter at run-time, can be
-specified through device tree bindings representing the parameters required
-to enter/exit specific idle states on a given processor.
-
-According to the Server Base System Architecture document (SBSA, [3]), the
-power states an ARM CPU can be put into are identified by the following list:
-
-- Running
-- Idle_standby
-- Idle_retention
-- Sleep
-- Off
-
-The power states described in the SBSA document define the basic CPU states on
-top of which ARM platforms implement power management schemes that allow an OS
-PM implementation to put the processor in different idle states (which include
-states listed above; "off" state is not an idle state since it does not have
-wake-up capabilities, hence it is not considered in this document).
-
-Idle state parameters (e.g. entry latency) are platform specific and need to be
-characterized with bindings that provide the required information to OS PM
-code so that it can build the required tables and use them at runtime.
-
-The device tree binding definition for ARM idle states is the subject of this
-document.
-
-===========================================
-2 - idle-states definitions
-===========================================
-
-Idle states are characterized for a specific system through a set of
-timing and energy related properties, that underline the HW behaviour
-triggered upon idle states entry and exit.
-
-The following diagram depicts the CPU execution phases and related timing
-properties required to enter and exit an idle state:
-
-..__[EXEC]__|__[PREP]__|__[ENTRY]__|__[IDLE]__|__[EXIT]__|__[EXEC]__..
- | | | | |
-
- |<------ entry ------->|
- | latency |
- |<- exit ->|
- | latency |
- |<-------- min-residency -------->|
- |<------- wakeup-latency ------->|
-
- Diagram 1: CPU idle state execution phases
-
-EXEC: Normal CPU execution.
-
-PREP: Preparation phase before committing the hardware to idle mode
- like cache flushing. This is abortable on pending wake-up
- event conditions. The abort latency is assumed to be negligible
- (i.e. less than the ENTRY + EXIT duration). If aborted, CPU
- goes back to EXEC. This phase is optional. If not abortable,
- this should be included in the ENTRY phase instead.
-
-ENTRY: The hardware is committed to idle mode. This period must run
- to completion up to IDLE before anything else can happen.
-
-IDLE: This is the actual energy-saving idle period. This may last
- between 0 and infinite time, until a wake-up event occurs.
-
-EXIT: Period during which the CPU is brought back to operational
- mode (EXEC).
-
-entry-latency: Worst case latency required to enter the idle state. The
-exit-latency may be guaranteed only after entry-latency has passed.
-
-min-residency: Minimum period, including preparation and entry, for a given
-idle state to be worthwhile energywise.
-
-wakeup-latency: Maximum delay between the signaling of a wake-up event and the
-CPU being able to execute normal code again. If not specified, this is assumed
-to be entry-latency + exit-latency.
-
-These timing parameters can be used by an OS in different circumstances.
-
-An idle CPU requires the expected min-residency time to select the most
-appropriate idle state based on the expected expiry time of the next IRQ
-(i.e. wake-up) that causes the CPU to return to the EXEC phase.
-
-An operating system scheduler may need to compute the shortest wake-up delay
-for CPUs in the system by detecting how long will it take to get a CPU out
-of an idle state, e.g.:
-
-wakeup-delay = exit-latency + max(entry-latency - (now - entry-timestamp), 0)
-
-In other words, the scheduler can make its scheduling decision by selecting
-(e.g. waking-up) the CPU with the shortest wake-up delay.
-The wake-up delay must take into account the entry latency if that period
-has not expired. The abortable nature of the PREP period can be ignored
-if it cannot be relied upon (e.g. the PREP deadline may occur much sooner than
-the worst case since it depends on the CPU operating conditions, i.e. caches
-state).
-
-An OS has to reliably probe the wakeup-latency since some devices can enforce
-latency constraint guarantees to work properly, so the OS has to detect the
-worst case wake-up latency it can incur if a CPU is allowed to enter an
-idle state, and possibly to prevent that to guarantee reliable device
-functioning.
-
-The min-residency time parameter deserves further explanation since it is
-expressed in time units but must factor in energy consumption coefficients.
-
-The energy consumption of a cpu when it enters a power state can be roughly
-characterised by the following graph:
-
- |
- |
- |
- e |
- n | /---
- e | /------
- r | /------
- g | /-----
- y | /------
- | ----
- | /|
- | / |
- | / |
- | / |
- | / |
- | / |
- |/ |
- -----|-------+----------------------------------
- 0| 1 time(ms)
-
- Graph 1: Energy vs time example
-
-The graph is split in two parts delimited by time 1ms on the X-axis.
-The graph curve with X-axis values = { x | 0 < x < 1ms } has a steep slope
-and denotes the energy costs incurred while entering and leaving the idle
-state.
-The graph curve in the area delimited by X-axis values = {x | x > 1ms } has
-shallower slope and essentially represents the energy consumption of the idle
-state.
-
-min-residency is defined for a given idle state as the minimum expected
-residency time for a state (inclusive of preparation and entry) after
-which choosing that state become the most energy efficient option. A good
-way to visualise this, is by taking the same graph above and comparing some
-states energy consumptions plots.
-
-For sake of simplicity, let's consider a system with two idle states IDLE1,
-and IDLE2:
-
- |
- |
- |
- | /-- IDLE1
- e | /---
- n | /----
- e | /---
- r | /-----/--------- IDLE2
- g | /-------/---------
- y | ------------ /---|
- | / /---- |
- | / /--- |
- | / /---- |
- | / /--- |
- | --- |
- | / |
- | / |
- |/ | time
- ---/----------------------------+------------------------
- |IDLE1-energy < IDLE2-energy | IDLE2-energy < IDLE1-energy
- |
- IDLE2-min-residency
-
- Graph 2: idle states min-residency example
-
-In graph 2 above, that takes into account idle states entry/exit energy
-costs, it is clear that if the idle state residency time (i.e. time till next
-wake-up IRQ) is less than IDLE2-min-residency, IDLE1 is the better idle state
-choice energywise.
-
-This is mainly down to the fact that IDLE1 entry/exit energy costs are lower
-than IDLE2.
-
-However, the lower power consumption (i.e. shallower energy curve slope) of
-idle state IDLE2 implies that after a suitable time, IDLE2 becomes more energy
-efficient.
-
-The time at which IDLE2 becomes more energy efficient than IDLE1 (and other
-shallower states in a system with multiple idle states) is defined
-IDLE2-min-residency and corresponds to the time when energy consumption of
-IDLE1 and IDLE2 states breaks even.
-
-The definitions provided in this section underpin the idle states
-properties specification that is the subject of the following sections.
-
-===========================================
-3 - idle-states node
-===========================================
-
-ARM processor idle states are defined within the idle-states node, which is
-a direct child of the cpus node [1] and provides a container where the
-processor idle states, defined as device tree nodes, are listed.
-
-- idle-states node
-
- Usage: Optional - On ARM systems, it is a container of processor idle
- states nodes. If the system does not provide CPU
- power management capabilities, or the processor just
- supports idle_standby, an idle-states node is not
- required.
-
- Description: idle-states node is a container node, where its
- subnodes describe the CPU idle states.
-
- Node name must be "idle-states".
-
- The idle-states node's parent node must be the cpus node.
-
- The idle-states node's child nodes can be:
-
- - one or more state nodes
-
- Any other configuration is considered invalid.
-
- An idle-states node defines the following properties:
-
- - entry-method
- Value type: <stringlist>
- Usage and definition depend on ARM architecture version.
- # On ARM v8 64-bit this property is required and must
- be:
- - "psci"
- # On ARM 32-bit systems this property is optional
-
-This assumes that the "enable-method" property is set to "psci" in the cpu
-node[6] that is responsible for setting up CPU idle management in the OS
-implementation.
-
-The nodes describing the idle states (state) can only be defined
-within the idle-states node, any other configuration is considered invalid
-and therefore must be ignored.
-
-===========================================
-4 - state node
-===========================================
-
-A state node represents an idle state description and must be defined as
-follows:
-
-- state node
-
- Description: must be child of the idle-states node
-
- The state node name shall follow standard device tree naming
- rules ([5], 2.2.1 "Node names"), in particular state nodes which
- are siblings within a single common parent must be given a unique name.
-
- The idle state entered by executing the wfi instruction (idle_standby
- SBSA,[3][4]) is considered standard on all ARM platforms and therefore
- must not be listed.
-
- With the definitions provided above, the following list represents
- the valid properties for a state node:
-
- - compatible
- Usage: Required
- Value type: <stringlist>
- Definition: Must be "arm,idle-state".
-
- - local-timer-stop
- Usage: See definition
- Value type: <none>
- Definition: if present the CPU local timer control logic is
- lost on state entry, otherwise it is retained.
-
- - entry-latency-us
- Usage: Required
- Value type: <prop-encoded-array>
- Definition: u32 value representing worst case latency in
- microseconds required to enter the idle state.
-
- - exit-latency-us
- Usage: Required
- Value type: <prop-encoded-array>
- Definition: u32 value representing worst case latency
- in microseconds required to exit the idle state.
- The exit-latency-us duration may be guaranteed
- only after entry-latency-us has passed.
-
- - min-residency-us
- Usage: Required
- Value type: <prop-encoded-array>
- Definition: u32 value representing minimum residency duration
- in microseconds, inclusive of preparation and
- entry, for this idle state to be considered
- worthwhile energy wise (refer to section 2 of
- this document for a complete description).
-
- - wakeup-latency-us:
- Usage: Optional
- Value type: <prop-encoded-array>
- Definition: u32 value representing maximum delay between the
- signaling of a wake-up event and the CPU being
- able to execute normal code again. If omitted,
- this is assumed to be equal to:
-
- entry-latency-us + exit-latency-us
-
- It is important to supply this value on systems
- where the duration of PREP phase (see diagram 1,
- section 2) is non-neglibigle.
- In such systems entry-latency-us + exit-latency-us
- will exceed wakeup-latency-us by this duration.
-
- - status:
- Usage: Optional
- Value type: <string>
- Definition: A standard device tree property [5] that indicates
- the operational status of an idle-state.
- If present, it shall be:
- "okay": to indicate that the idle state is
- operational.
- "disabled": to indicate that the idle state has
- been disabled in firmware so it is not
- operational.
- If the property is not present the idle-state must
- be considered operational.
-
- - idle-state-name:
- Usage: Optional
- Value type: <string>
- Definition: A string used as a descriptive name for the idle
- state.
-
- In addition to the properties listed above, a state node may require
- additional properties specific to the entry-method defined in the
- idle-states node. Please refer to the entry-method bindings
- documentation for properties definitions.
-
-===========================================
-4 - Examples
-===========================================
-
-Example 1 (ARM 64-bit, 16-cpu system, PSCI enable-method):
-
-cpus {
- #size-cells = <0>;
- #address-cells = <2>;
-
- CPU0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x0>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU1: cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x1>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU2: cpu@100 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x100>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU3: cpu@101 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x101>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU4: cpu@10000 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10000>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU5: cpu@10001 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10001>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU6: cpu@10100 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10100>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU7: cpu@10101 {
- device_type = "cpu";
- compatible = "arm,cortex-a57";
- reg = <0x0 0x10101>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
- &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU8: cpu@100000000 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x0>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- CPU9: cpu@100000001 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x1>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- CPU10: cpu@100000100 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x100>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- CPU11: cpu@100000101 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x101>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- CPU12: cpu@100010000 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x10000>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- CPU13: cpu@100010001 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x10001>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- CPU14: cpu@100010100 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x10100>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- CPU15: cpu@100010101 {
- device_type = "cpu";
- compatible = "arm,cortex-a53";
- reg = <0x1 0x10101>;
- enable-method = "psci";
- cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
- &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
- };
-
- idle-states {
- entry-method = "psci";
-
- CPU_RETENTION_0_0: cpu-retention-0-0 {
- compatible = "arm,idle-state";
- arm,psci-suspend-param = <0x0010000>;
- entry-latency-us = <20>;
- exit-latency-us = <40>;
- min-residency-us = <80>;
- };
-
- CLUSTER_RETENTION_0: cluster-retention-0 {
- compatible = "arm,idle-state";
- local-timer-stop;
- arm,psci-suspend-param = <0x1010000>;
- entry-latency-us = <50>;
- exit-latency-us = <100>;
- min-residency-us = <250>;
- wakeup-latency-us = <130>;
- };
-
- CPU_SLEEP_0_0: cpu-sleep-0-0 {
- compatible = "arm,idle-state";
- local-timer-stop;
- arm,psci-suspend-param = <0x0010000>;
- entry-latency-us = <250>;
- exit-latency-us = <500>;
- min-residency-us = <950>;
- };
-
- CLUSTER_SLEEP_0: cluster-sleep-0 {
- compatible = "arm,idle-state";
- local-timer-stop;
- arm,psci-suspend-param = <0x1010000>;
- entry-latency-us = <600>;
- exit-latency-us = <1100>;
- min-residency-us = <2700>;
- wakeup-latency-us = <1500>;
- };
-
- CPU_RETENTION_1_0: cpu-retention-1-0 {
- compatible = "arm,idle-state";
- arm,psci-suspend-param = <0x0010000>;
- entry-latency-us = <20>;
- exit-latency-us = <40>;
- min-residency-us = <90>;
- };
-
- CLUSTER_RETENTION_1: cluster-retention-1 {
- compatible = "arm,idle-state";
- local-timer-stop;
- arm,psci-suspend-param = <0x1010000>;
- entry-latency-us = <50>;
- exit-latency-us = <100>;
- min-residency-us = <270>;
- wakeup-latency-us = <100>;
- };
-
- CPU_SLEEP_1_0: cpu-sleep-1-0 {
- compatible = "arm,idle-state";
- local-timer-stop;
- arm,psci-suspend-param = <0x0010000>;
- entry-latency-us = <70>;
- exit-latency-us = <100>;
- min-residency-us = <300>;
- wakeup-latency-us = <150>;
- };
-
- CLUSTER_SLEEP_1: cluster-sleep-1 {
- compatible = "arm,idle-state";
- local-timer-stop;
- arm,psci-suspend-param = <0x1010000>;
- entry-latency-us = <500>;
- exit-latency-us = <1200>;
- min-residency-us = <3500>;
- wakeup-latency-us = <1300>;
- };
- };
-
-};
-
-Example 2 (ARM 32-bit, 8-cpu system, two clusters):
-
-cpus {
- #size-cells = <0>;
- #address-cells = <1>;
-
- CPU0: cpu@0 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x0>;
- cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU1: cpu@1 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x1>;
- cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU2: cpu@2 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x2>;
- cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU3: cpu@3 {
- device_type = "cpu";
- compatible = "arm,cortex-a15";
- reg = <0x3>;
- cpu-idle-states = <&CPU_SLEEP_0_0 &CLUSTER_SLEEP_0>;
- };
-
- CPU4: cpu@100 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x100>;
- cpu-idle-states = <&CPU_SLEEP_1_0 &CLUSTER_SLEEP_1>;
- };
-
- CPU5: cpu@101 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x101>;
- cpu-idle-states = <&CPU_SLEEP_1_0 &CLUSTER_SLEEP_1>;
- };
-
- CPU6: cpu@102 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x102>;
- cpu-idle-states = <&CPU_SLEEP_1_0 &CLUSTER_SLEEP_1>;
- };
-
- CPU7: cpu@103 {
- device_type = "cpu";
- compatible = "arm,cortex-a7";
- reg = <0x103>;
- cpu-idle-states = <&CPU_SLEEP_1_0 &CLUSTER_SLEEP_1>;
- };
-
- idle-states {
- CPU_SLEEP_0_0: cpu-sleep-0-0 {
- compatible = "arm,idle-state";
- local-timer-stop;
- entry-latency-us = <200>;
- exit-latency-us = <100>;
- min-residency-us = <400>;
- wakeup-latency-us = <250>;
- };
-
- CLUSTER_SLEEP_0: cluster-sleep-0 {
- compatible = "arm,idle-state";
- local-timer-stop;
- entry-latency-us = <500>;
- exit-latency-us = <1500>;
- min-residency-us = <2500>;
- wakeup-latency-us = <1700>;
- };
-
- CPU_SLEEP_1_0: cpu-sleep-1-0 {
- compatible = "arm,idle-state";
- local-timer-stop;
- entry-latency-us = <300>;
- exit-latency-us = <500>;
- min-residency-us = <900>;
- wakeup-latency-us = <600>;
- };
-
- CLUSTER_SLEEP_1: cluster-sleep-1 {
- compatible = "arm,idle-state";
- local-timer-stop;
- entry-latency-us = <800>;
- exit-latency-us = <2000>;
- min-residency-us = <6500>;
- wakeup-latency-us = <2300>;
- };
- };
-
-};
-
-===========================================
-5 - References
-===========================================
-
-[1] ARM Linux Kernel documentation - CPUs bindings
- Documentation/devicetree/bindings/arm/cpus.yaml
-
-[2] ARM Linux Kernel documentation - PSCI bindings
- Documentation/devicetree/bindings/arm/psci.yaml
-
-[3] ARM Server Base System Architecture (SBSA)
- http://infocenter.arm.com/help/index.jsp
-
-[4] ARM Architecture Reference Manuals
- http://infocenter.arm.com/help/index.jsp
-
-[5] Devicetree Specification
- https://www.devicetree.org/specifications/
-
-[6] ARM Linux Kernel documentation - Booting AArch64 Linux
- Documentation/arm64/booting.rst
diff --git a/Documentation/devicetree/bindings/arm/idle-states.yaml b/Documentation/devicetree/bindings/arm/idle-states.yaml
new file mode 100644
index 000000000000..ea805c1e6b20
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/idle-states.yaml
@@ -0,0 +1,661 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/idle-states.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM idle states binding description
+
+maintainers:
+ - Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
+
+description: |+
+ ==========================================
+ 1 - Introduction
+ ==========================================
+
+ ARM systems contain HW capable of managing power consumption dynamically,
+ where cores can be put in different low-power states (ranging from simple wfi
+ to power gating) according to OS PM policies. The CPU states representing the
+ range of dynamic idle states that a processor can enter at run-time, can be
+ specified through device tree bindings representing the parameters required to
+ enter/exit specific idle states on a given processor.
+
+ According to the Server Base System Architecture document (SBSA, [3]), the
+ power states an ARM CPU can be put into are identified by the following list:
+
+ - Running
+ - Idle_standby
+ - Idle_retention
+ - Sleep
+ - Off
+
+ The power states described in the SBSA document define the basic CPU states on
+ top of which ARM platforms implement power management schemes that allow an OS
+ PM implementation to put the processor in different idle states (which include
+ states listed above; "off" state is not an idle state since it does not have
+ wake-up capabilities, hence it is not considered in this document).
+
+ Idle state parameters (e.g. entry latency) are platform specific and need to
+ be characterized with bindings that provide the required information to OS PM
+ code so that it can build the required tables and use them at runtime.
+
+ The device tree binding definition for ARM idle states is the subject of this
+ document.
+
+ ===========================================
+ 2 - idle-states definitions
+ ===========================================
+
+ Idle states are characterized for a specific system through a set of
+ timing and energy related properties, that underline the HW behaviour
+ triggered upon idle states entry and exit.
+
+ The following diagram depicts the CPU execution phases and related timing
+ properties required to enter and exit an idle state:
+
+ ..__[EXEC]__|__[PREP]__|__[ENTRY]__|__[IDLE]__|__[EXIT]__|__[EXEC]__..
+ | | | | |
+
+ |<------ entry ------->|
+ | latency |
+ |<- exit ->|
+ | latency |
+ |<-------- min-residency -------->|
+ |<------- wakeup-latency ------->|
+
+ Diagram 1: CPU idle state execution phases
+
+ EXEC: Normal CPU execution.
+
+ PREP: Preparation phase before committing the hardware to idle mode
+ like cache flushing. This is abortable on pending wake-up
+ event conditions. The abort latency is assumed to be negligible
+ (i.e. less than the ENTRY + EXIT duration). If aborted, CPU
+ goes back to EXEC. This phase is optional. If not abortable,
+ this should be included in the ENTRY phase instead.
+
+ ENTRY: The hardware is committed to idle mode. This period must run
+ to completion up to IDLE before anything else can happen.
+
+ IDLE: This is the actual energy-saving idle period. This may last
+ between 0 and infinite time, until a wake-up event occurs.
+
+ EXIT: Period during which the CPU is brought back to operational
+ mode (EXEC).
+
+ entry-latency: Worst case latency required to enter the idle state. The
+ exit-latency may be guaranteed only after entry-latency has passed.
+
+ min-residency: Minimum period, including preparation and entry, for a given
+ idle state to be worthwhile energywise.
+
+ wakeup-latency: Maximum delay between the signaling of a wake-up event and the
+ CPU being able to execute normal code again. If not specified, this is assumed
+ to be entry-latency + exit-latency.
+
+ These timing parameters can be used by an OS in different circumstances.
+
+ An idle CPU requires the expected min-residency time to select the most
+ appropriate idle state based on the expected expiry time of the next IRQ
+ (i.e. wake-up) that causes the CPU to return to the EXEC phase.
+
+ An operating system scheduler may need to compute the shortest wake-up delay
+ for CPUs in the system by detecting how long will it take to get a CPU out
+ of an idle state, e.g.:
+
+ wakeup-delay = exit-latency + max(entry-latency - (now - entry-timestamp), 0)
+
+ In other words, the scheduler can make its scheduling decision by selecting
+ (e.g. waking-up) the CPU with the shortest wake-up delay.
+ The wake-up delay must take into account the entry latency if that period
+ has not expired. The abortable nature of the PREP period can be ignored
+ if it cannot be relied upon (e.g. the PREP deadline may occur much sooner than
+ the worst case since it depends on the CPU operating conditions, i.e. caches
+ state).
+
+ An OS has to reliably probe the wakeup-latency since some devices can enforce
+ latency constraint guarantees to work properly, so the OS has to detect the
+ worst case wake-up latency it can incur if a CPU is allowed to enter an
+ idle state, and possibly to prevent that to guarantee reliable device
+ functioning.
+
+ The min-residency time parameter deserves further explanation since it is
+ expressed in time units but must factor in energy consumption coefficients.
+
+ The energy consumption of a cpu when it enters a power state can be roughly
+ characterised by the following graph:
+
+ |
+ |
+ |
+ e |
+ n | /---
+ e | /------
+ r | /------
+ g | /-----
+ y | /------
+ | ----
+ | /|
+ | / |
+ | / |
+ | / |
+ | / |
+ | / |
+ |/ |
+ -----|-------+----------------------------------
+ 0| 1 time(ms)
+
+ Graph 1: Energy vs time example
+
+ The graph is split in two parts delimited by time 1ms on the X-axis.
+ The graph curve with X-axis values = { x | 0 < x < 1ms } has a steep slope
+ and denotes the energy costs incurred while entering and leaving the idle
+ state.
+ The graph curve in the area delimited by X-axis values = {x | x > 1ms } has
+ shallower slope and essentially represents the energy consumption of the idle
+ state.
+
+ min-residency is defined for a given idle state as the minimum expected
+ residency time for a state (inclusive of preparation and entry) after
+ which choosing that state become the most energy efficient option. A good
+ way to visualise this, is by taking the same graph above and comparing some
+ states energy consumptions plots.
+
+ For sake of simplicity, let's consider a system with two idle states IDLE1,
+ and IDLE2:
+
+ |
+ |
+ |
+ | /-- IDLE1
+ e | /---
+ n | /----
+ e | /---
+ r | /-----/--------- IDLE2
+ g | /-------/---------
+ y | ------------ /---|
+ | / /---- |
+ | / /--- |
+ | / /---- |
+ | / /--- |
+ | --- |
+ | / |
+ | / |
+ |/ | time
+ ---/----------------------------+------------------------
+ |IDLE1-energy < IDLE2-energy | IDLE2-energy < IDLE1-energy
+ |
+ IDLE2-min-residency
+
+ Graph 2: idle states min-residency example
+
+ In graph 2 above, that takes into account idle states entry/exit energy
+ costs, it is clear that if the idle state residency time (i.e. time till next
+ wake-up IRQ) is less than IDLE2-min-residency, IDLE1 is the better idle state
+ choice energywise.
+
+ This is mainly down to the fact that IDLE1 entry/exit energy costs are lower
+ than IDLE2.
+
+ However, the lower power consumption (i.e. shallower energy curve slope) of
+ idle state IDLE2 implies that after a suitable time, IDLE2 becomes more energy
+ efficient.
+
+ The time at which IDLE2 becomes more energy efficient than IDLE1 (and other
+ shallower states in a system with multiple idle states) is defined
+ IDLE2-min-residency and corresponds to the time when energy consumption of
+ IDLE1 and IDLE2 states breaks even.
+
+ The definitions provided in this section underpin the idle states
+ properties specification that is the subject of the following sections.
+
+ ===========================================
+ 3 - idle-states node
+ ===========================================
+
+ ARM processor idle states are defined within the idle-states node, which is
+ a direct child of the cpus node [1] and provides a container where the
+ processor idle states, defined as device tree nodes, are listed.
+
+ On ARM systems, it is a container of processor idle states nodes. If the
+ system does not provide CPU power management capabilities, or the processor
+ just supports idle_standby, an idle-states node is not required.
+
+ ===========================================
+ 4 - References
+ ===========================================
+
+ [1] ARM Linux Kernel documentation - CPUs bindings
+ Documentation/devicetree/bindings/arm/cpus.yaml
+
+ [2] ARM Linux Kernel documentation - PSCI bindings
+ Documentation/devicetree/bindings/arm/psci.yaml
+
+ [3] ARM Server Base System Architecture (SBSA)
+ http://infocenter.arm.com/help/index.jsp
+
+ [4] ARM Architecture Reference Manuals
+ http://infocenter.arm.com/help/index.jsp
+
+ [6] ARM Linux Kernel documentation - Booting AArch64 Linux
+ Documentation/arm64/booting.rst
+
+properties:
+ $nodename:
+ const: idle-states
+
+ entry-method:
+ description: |
+ Usage and definition depend on ARM architecture version.
+
+ On ARM v8 64-bit this property is required.
+ On ARM 32-bit systems this property is optional
+
+ This assumes that the "enable-method" property is set to "psci" in the cpu
+ node[6] that is responsible for setting up CPU idle management in the OS
+ implementation.
+ const: psci
+
+patternProperties:
+ "^(cpu|cluster)-":
+ type: object
+ description: |
+ Each state node represents an idle state description and must be defined
+ as follows.
+
+ The idle state entered by executing the wfi instruction (idle_standby
+ SBSA,[3][4]) is considered standard on all ARM platforms and therefore
+ must not be listed.
+
+ In addition to the properties listed above, a state node may require
+ additional properties specific to the entry-method defined in the
+ idle-states node. Please refer to the entry-method bindings
+ documentation for properties definitions.
+
+ properties:
+ compatible:
+ const: arm,idle-state
+
+ local-timer-stop:
+ description:
+ If present the CPU local timer control logic is
+ lost on state entry, otherwise it is retained.
+ type: boolean
+
+ entry-latency-us:
+ description:
+ Worst case latency in microseconds required to enter the idle state.
+
+ exit-latency-us:
+ description:
+ Worst case latency in microseconds required to exit the idle state.
+ The exit-latency-us duration may be guaranteed only after
+ entry-latency-us has passed.
+
+ min-residency-us:
+ description:
+ Minimum residency duration in microseconds, inclusive of preparation
+ and entry, for this idle state to be considered worthwhile energy wise
+ (refer to section 2 of this document for a complete description).
+
+ wakeup-latency-us:
+ description: |
+ Maximum delay between the signaling of a wake-up event and the CPU
+ being able to execute normal code again. If omitted, this is assumed
+ to be equal to:
+
+ entry-latency-us + exit-latency-us
+
+ It is important to supply this value on systems where the duration of
+ PREP phase (see diagram 1, section 2) is non-neglibigle. In such
+ systems entry-latency-us + exit-latency-us will exceed
+ wakeup-latency-us by this duration.
+
+ idle-state-name:
+ $ref: /schemas/types.yaml#definitions/string
+ description:
+ A string used as a descriptive name for the idle state.
+
+ required:
+ - compatible
+ - entry-latency-us
+ - exit-latency-us
+ - min-residency-us
+
+additionalProperties: false
+
+examples:
+ - |
+
+ cpus {
+ #size-cells = <0>;
+ #address-cells = <2>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x100>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x101>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@10000 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x10000>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@10001 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x10001>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@10100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x10100>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@10101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a57";
+ reg = <0x0 0x10101>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_0_0 &CPU_SLEEP_0_0
+ &CLUSTER_RETENTION_0 &CLUSTER_SLEEP_0>;
+ };
+
+ cpu@100000000 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x0>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ cpu@100000001 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x1>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ cpu@100000100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x100>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ cpu@100000101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x101>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ cpu@100010000 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x10000>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ cpu@100010001 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x10001>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ cpu@100010100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x10100>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ cpu@100010101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53";
+ reg = <0x1 0x10101>;
+ enable-method = "psci";
+ cpu-idle-states = <&CPU_RETENTION_1_0 &CPU_SLEEP_1_0
+ &CLUSTER_RETENTION_1 &CLUSTER_SLEEP_1>;
+ };
+
+ idle-states {
+ entry-method = "psci";
+
+ CPU_RETENTION_0_0: cpu-retention-0-0 {
+ compatible = "arm,idle-state";
+ arm,psci-suspend-param = <0x0010000>;
+ entry-latency-us = <20>;
+ exit-latency-us = <40>;
+ min-residency-us = <80>;
+ };
+
+ CLUSTER_RETENTION_0: cluster-retention-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x1010000>;
+ entry-latency-us = <50>;
+ exit-latency-us = <100>;
+ min-residency-us = <250>;
+ wakeup-latency-us = <130>;
+ };
+
+ CPU_SLEEP_0_0: cpu-sleep-0-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x0010000>;
+ entry-latency-us = <250>;
+ exit-latency-us = <500>;
+ min-residency-us = <950>;
+ };
+
+ CLUSTER_SLEEP_0: cluster-sleep-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x1010000>;
+ entry-latency-us = <600>;
+ exit-latency-us = <1100>;
+ min-residency-us = <2700>;
+ wakeup-latency-us = <1500>;
+ };
+
+ CPU_RETENTION_1_0: cpu-retention-1-0 {
+ compatible = "arm,idle-state";
+ arm,psci-suspend-param = <0x0010000>;
+ entry-latency-us = <20>;
+ exit-latency-us = <40>;
+ min-residency-us = <90>;
+ };
+
+ CLUSTER_RETENTION_1: cluster-retention-1 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x1010000>;
+ entry-latency-us = <50>;
+ exit-latency-us = <100>;
+ min-residency-us = <270>;
+ wakeup-latency-us = <100>;
+ };
+
+ CPU_SLEEP_1_0: cpu-sleep-1-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x0010000>;
+ entry-latency-us = <70>;
+ exit-latency-us = <100>;
+ min-residency-us = <300>;
+ wakeup-latency-us = <150>;
+ };
+
+ CLUSTER_SLEEP_1: cluster-sleep-1 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ arm,psci-suspend-param = <0x1010000>;
+ entry-latency-us = <500>;
+ exit-latency-us = <1200>;
+ min-residency-us = <3500>;
+ wakeup-latency-us = <1300>;
+ };
+ };
+ };
+
+ - |
+ // Example 2 (ARM 32-bit, 8-cpu system, two clusters):
+
+ cpus {
+ #size-cells = <0>;
+ #address-cells = <1>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a15";
+ reg = <0x0>;
+ cpu-idle-states = <&cpu_sleep_0_0 &cluster_sleep_0>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a15";
+ reg = <0x1>;
+ cpu-idle-states = <&cpu_sleep_0_0 &cluster_sleep_0>;
+ };
+
+ cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a15";
+ reg = <0x2>;
+ cpu-idle-states = <&cpu_sleep_0_0 &cluster_sleep_0>;
+ };
+
+ cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a15";
+ reg = <0x3>;
+ cpu-idle-states = <&cpu_sleep_0_0 &cluster_sleep_0>;
+ };
+
+ cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x100>;
+ cpu-idle-states = <&cpu_sleep_1_0 &cluster_sleep_1>;
+ };
+
+ cpu@101 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x101>;
+ cpu-idle-states = <&cpu_sleep_1_0 &cluster_sleep_1>;
+ };
+
+ cpu@102 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x102>;
+ cpu-idle-states = <&cpu_sleep_1_0 &cluster_sleep_1>;
+ };
+
+ cpu@103 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a7";
+ reg = <0x103>;
+ cpu-idle-states = <&cpu_sleep_1_0 &cluster_sleep_1>;
+ };
+
+ idle-states {
+ cpu_sleep_0_0: cpu-sleep-0-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ entry-latency-us = <200>;
+ exit-latency-us = <100>;
+ min-residency-us = <400>;
+ wakeup-latency-us = <250>;
+ };
+
+ cluster_sleep_0: cluster-sleep-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ entry-latency-us = <500>;
+ exit-latency-us = <1500>;
+ min-residency-us = <2500>;
+ wakeup-latency-us = <1700>;
+ };
+
+ cpu_sleep_1_0: cpu-sleep-1-0 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ entry-latency-us = <300>;
+ exit-latency-us = <500>;
+ min-residency-us = <900>;
+ wakeup-latency-us = <600>;
+ };
+
+ cluster_sleep_1: cluster-sleep-1 {
+ compatible = "arm,idle-state";
+ local-timer-stop;
+ entry-latency-us = <800>;
+ exit-latency-us = <2000>;
+ min-residency-us = <6500>;
+ wakeup-latency-us = <2300>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/stm32/mlahb.txt b/Documentation/devicetree/bindings/arm/stm32/mlahb.txt
deleted file mode 100644
index 25307aa1eb9b..000000000000
--- a/Documentation/devicetree/bindings/arm/stm32/mlahb.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-ML-AHB interconnect bindings
-
-These bindings describe the STM32 SoCs ML-AHB interconnect bus which connects
-a Cortex-M subsystem with dedicated memories.
-The MCU SRAM and RETRAM memory parts can be accessed through different addresses
-(see "RAM aliases" in [1]) using different buses (see [2]) : balancing the
-Cortex-M firmware accesses among those ports allows to tune the system
-performance.
-
-[1]: https://www.st.com/resource/en/reference_manual/dm00327659.pdf
-[2]: https://wiki.st.com/stm32mpu/wiki/STM32MP15_RAM_mapping
-
-Required properties:
-- compatible: should be "simple-bus"
-- dma-ranges: describes memory addresses translation between the local CPU and
- the remote Cortex-M processor. Each memory region, is declared with
- 3 parameters:
- - param 1: device base address (Cortex-M processor address)
- - param 2: physical base address (local CPU address)
- - param 3: size of the memory region.
-
-The Cortex-M remote processor accessed via the mlahb interconnect is described
-by a child node.
-
-Example:
-mlahb {
- compatible = "simple-bus";
- #address-cells = <1>;
- #size-cells = <1>;
- dma-ranges = <0x00000000 0x38000000 0x10000>,
- <0x10000000 0x10000000 0x60000>,
- <0x30000000 0x30000000 0x60000>;
-
- m4_rproc: m4@10000000 {
- ...
- };
-};
diff --git a/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml b/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
new file mode 100644
index 000000000000..68917bb7c7e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/stm32/st,mlahb.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/stm32/st,mlahb.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STM32 ML-AHB interconnect bindings
+
+maintainers:
+ - Fabien Dessenne <fabien.dessenne@st.com>
+ - Arnaud Pouliquen <arnaud.pouliquen@st.com>
+
+description: |
+ These bindings describe the STM32 SoCs ML-AHB interconnect bus which connects
+ a Cortex-M subsystem with dedicated memories. The MCU SRAM and RETRAM memory
+ parts can be accessed through different addresses (see "RAM aliases" in [1])
+ using different buses (see [2]): balancing the Cortex-M firmware accesses
+ among those ports allows to tune the system performance.
+ [1]: https://www.st.com/resource/en/reference_manual/dm00327659.pdf
+ [2]: https://wiki.st.com/stm32mpu/wiki/STM32MP15_RAM_mapping
+
+allOf:
+ - $ref: /schemas/simple-bus.yaml#
+
+properties:
+ compatible:
+ contains:
+ enum:
+ - st,mlahb
+
+ dma-ranges:
+ description: |
+ Describe memory addresses translation between the local CPU and the
+ remote Cortex-M processor. Each memory region, is declared with
+ 3 parameters:
+ - param 1: device base address (Cortex-M processor address)
+ - param 2: physical base address (local CPU address)
+ - param 3: size of the memory region.
+ maxItems: 3
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+required:
+ - compatible
+ - '#address-cells'
+ - '#size-cells'
+ - dma-ranges
+
+examples:
+ - |
+ mlahb: ahb {
+ compatible = "st,mlahb", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x10000000 0x40000>;
+ ranges;
+ dma-ranges = <0x00000000 0x38000000 0x10000>,
+ <0x10000000 0x10000000 0x60000>,
+ <0x30000000 0x30000000 0x60000>;
+
+ m4_rproc: m4@10000000 {
+ reg = <0x10000000 0x40000>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
new file mode 100644
index 000000000000..0dedf94c8578
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/stm32/st,stm32-syscon.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STM32 Platforms System Controller bindings
+
+maintainers:
+ - Alexandre Torgue <alexandre.torgue@st.com>
+ - Christophe Roullier <christophe.roullier@st.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - st,stm32mp157-syscfg
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+examples:
+ - |
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ syscfg: syscon@50020000 {
+ compatible = "st,stm32mp157-syscfg", "syscon";
+ reg = <0x50020000 0x400>;
+ clocks = <&rcc SYSCFG>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32-syscon.txt b/Documentation/devicetree/bindings/arm/stm32/stm32-syscon.txt
deleted file mode 100644
index c92d411fd023..000000000000
--- a/Documentation/devicetree/bindings/arm/stm32/stm32-syscon.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-STMicroelectronics STM32 Platforms System Controller
-
-Properties:
- - compatible : should contain two values. First value must be :
- - " st,stm32mp157-syscfg " - for stm32mp157 based SoCs,
- second value must be always "syscon".
- - reg : offset and length of the register set.
- - clocks: phandle to the syscfg clock
-
- Example:
- syscfg: syscon@50020000 {
- compatible = "st,stm32mp157-syscfg", "syscon";
- reg = <0x50020000 0x400>;
- clocks = <&rcc SYSCFG>;
- };
-
diff --git a/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
new file mode 100644
index 000000000000..9370e64992dd
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/sunxi/allwinner,sun4i-a10-mbus.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner Memory Bus (MBUS) controller
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ The MBUS controller drives the MBUS that other devices in the SoC
+ will use to perform DMA. It also has a register interface that
+ allows to monitor and control the bandwidth and priorities for
+ masters on that bus.
+
+ Each device having to perform their DMA through the MBUS must have
+ the interconnects and interconnect-names properties set to the MBUS
+ controller and with "dma-mem" as the interconnect name.
+
+properties:
+ "#interconnect-cells":
+ const: 1
+ description:
+ The content of the cell is the MBUS ID.
+
+ compatible:
+ enum:
+ - allwinner,sun5i-a13-mbus
+ - allwinner,sun8i-h3-mbus
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ dma-ranges:
+ description:
+ See section 2.3.9 of the DeviceTree Specification.
+
+required:
+ - "#interconnect-cells"
+ - compatible
+ - reg
+ - clocks
+ - dma-ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun5i-ccu.h>
+
+ mbus: dram-controller@1c01000 {
+ compatible = "allwinner,sun5i-a13-mbus";
+ reg = <0x01c01000 0x1000>;
+ clocks = <&ccu CLK_MBUS>;
+ dma-ranges = <0x00000000 0x40000000 0x20000000>;
+ #interconnect-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/sunxi/sunxi-mbus.txt b/Documentation/devicetree/bindings/arm/sunxi/sunxi-mbus.txt
deleted file mode 100644
index 2005bb486705..000000000000
--- a/Documentation/devicetree/bindings/arm/sunxi/sunxi-mbus.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-Allwinner Memory Bus (MBUS) controller
-
-The MBUS controller drives the MBUS that other devices in the SoC will
-use to perform DMA. It also has a register interface that allows to
-monitor and control the bandwidth and priorities for masters on that
-bus.
-
-Required properties:
- - compatible: Must be one of:
- - allwinner,sun5i-a13-mbus
- - allwinner,sun8i-h3-mbus
- - reg: Offset and length of the register set for the controller
- - clocks: phandle to the clock driving the controller
- - dma-ranges: See section 2.3.9 of the DeviceTree Specification
- - #interconnect-cells: Must be one, with the argument being the MBUS
- port ID
-
-Each device having to perform their DMA through the MBUS must have the
-interconnects and interconnect-names properties set to the MBUS
-controller and with "dma-mem" as the interconnect name.
-
-Example:
-
-mbus: dram-controller@1c01000 {
- compatible = "allwinner,sun5i-a13-mbus";
- reg = <0x01c01000 0x1000>;
- clocks = <&ccu CLK_MBUS>;
- dma-ranges = <0x00000000 0x40000000 0x20000000>;
- #interconnect-cells = <1>;
-};
-
-fe0: display-frontend@1e00000 {
- compatible = "allwinner,sun5i-a13-display-frontend";
- ...
- interconnects = <&mbus 19>;
- interconnect-names = "dma-mem";
-};
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index 55c6fab1b373..77091a277642 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -9,8 +9,6 @@ PHYs.
Required properties:
- compatible : compatible string, one of:
- - "allwinner,sun4i-a10-ahci"
- - "allwinner,sun8i-r40-ahci"
- "brcm,iproc-ahci"
- "hisilicon,hisi-ahci"
- "cavium,octeon-7130-ahci"
@@ -45,8 +43,6 @@ Required properties when using sub-nodes:
- #address-cells : number of cells to encode an address
- #size-cells : number of cells representing the size of an address
-For allwinner,sun8i-r40-ahci, the reset property must be present.
-
Sub-nodes required properties:
- reg : the port number
And at least one of the following properties:
@@ -60,14 +56,6 @@ Examples:
interrupts = <115>;
};
- ahci: sata@1c18000 {
- compatible = "allwinner,sun4i-a10-ahci";
- reg = <0x01c18000 0x1000>;
- interrupts = <56>;
- clocks = <&pll6 0>, <&ahb_gates 25>;
- target-supply = <&reg_ahci_5v>;
- };
-
With sub-nodes:
sata@f7e90000 {
compatible = "marvell,berlin2q-achi", "generic-ahci";
diff --git a/Documentation/devicetree/bindings/ata/allwinner,sun4i-a10-ahci.yaml b/Documentation/devicetree/bindings/ata/allwinner,sun4i-a10-ahci.yaml
new file mode 100644
index 000000000000..cb530b46beff
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/allwinner,sun4i-a10-ahci.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/allwinner,sun4i-a10-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 AHCI SATA Controller bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ const: allwinner,sun4i-a10-ahci
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: AHCI Bus Clock
+ - description: AHCI Module Clock
+
+ interrupts:
+ maxItems: 1
+
+ target-supply:
+ description: Regulator for SATA target power
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ ahci: sata@1c18000 {
+ compatible = "allwinner,sun4i-a10-ahci";
+ reg = <0x01c18000 0x1000>;
+ interrupts = <56>;
+ clocks = <&pll6 0>, <&ahb_gates 25>;
+ target-supply = <&reg_ahci_5v>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/allwinner,sun8i-r40-ahci.yaml b/Documentation/devicetree/bindings/ata/allwinner,sun8i-r40-ahci.yaml
new file mode 100644
index 000000000000..e6b42a113ff1
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/allwinner,sun8i-r40-ahci.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/allwinner,sun8i-r40-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner R40 AHCI SATA Controller bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ const: allwinner,sun8i-r40-ahci
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: AHCI Bus Clock
+ - description: AHCI Module Clock
+
+ interrupts:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: ahci
+
+ ahci-supply:
+ description: Regulator for the AHCI controller
+
+ phy-supply:
+ description: Regulator for the SATA PHY power
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/sun8i-r40-ccu.h>
+ #include <dt-bindings/reset/sun8i-r40-ccu.h>
+
+ ahci: sata@1c18000 {
+ compatible = "allwinner,sun8i-r40-ahci";
+ reg = <0x01c18000 0x1000>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_SATA>, <&ccu CLK_SATA>;
+ resets = <&ccu RST_BUS_SATA>;
+ reset-names = "ahci";
+ ahci-supply = <&reg_dldo4>;
+ phy-supply = <&reg_eldo3>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/ata/brcm,sata-brcm.txt b/Documentation/devicetree/bindings/ata/brcm,sata-brcm.txt
index 7713a413c6a7..b9ae4ce4a0a0 100644
--- a/Documentation/devicetree/bindings/ata/brcm,sata-brcm.txt
+++ b/Documentation/devicetree/bindings/ata/brcm,sata-brcm.txt
@@ -5,6 +5,7 @@ Each SATA controller should have its own node.
Required properties:
- compatible : should be one or more of
+ "brcm,bcm7216-ahci"
"brcm,bcm7425-ahci"
"brcm,bcm7445-ahci"
"brcm,bcm-nsp-ahci"
@@ -14,6 +15,12 @@ Required properties:
- reg-names : "ahci" and "top-ctrl"
- interrupts : interrupt mapping for SATA IRQ
+Optional properties:
+
+- reset: for "brcm,bcm7216-ahci" must be a valid reset phandle
+ pointing to the RESCAL reset controller provider node.
+- reset-names: for "brcm,bcm7216-ahci", must be "rescal".
+
Also see ahci-platform.txt.
Example:
diff --git a/Documentation/devicetree/bindings/ata/faraday,ftide010.txt b/Documentation/devicetree/bindings/ata/faraday,ftide010.txt
deleted file mode 100644
index a0c64a29104d..000000000000
--- a/Documentation/devicetree/bindings/ata/faraday,ftide010.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-* Faraday Technology FTIDE010 PATA controller
-
-This controller is the first Faraday IDE interface block, used in the
-StorLink SL2312 and SL3516, later known as the Cortina Systems Gemini
-platform. The controller can do PIO modes 0 through 4, Multi-word DMA
-(MWDM)modes 0 through 2 and Ultra DMA modes 0 through 6.
-
-On the Gemini platform, this PATA block is accompanied by a PATA to
-SATA bridge in order to support SATA. This is why a phandle to that
-controller is compulsory on that platform.
-
-The timing properties are unique per-SoC, not per-board.
-
-Required properties:
-- compatible: should be one of
- "cortina,gemini-pata", "faraday,ftide010"
- "faraday,ftide010"
-- interrupts: interrupt for the block
-- reg: registers and size for the block
-
-Optional properties:
-- clocks: a SoC clock running the peripheral.
-- clock-names: should be set to "PCLK" for the peripheral clock.
-
-Required properties for "cortina,gemini-pata" compatible:
-- sata: a phande to the Gemini PATA to SATA bridge, see
- cortina,gemini-sata-bridge.txt for details.
-
-Example:
-
-ata@63000000 {
- compatible = "cortina,gemini-pata", "faraday,ftide010";
- reg = <0x63000000 0x100>;
- interrupts = <4 IRQ_TYPE_EDGE_RISING>;
- clocks = <&gcc GEMINI_CLK_GATE_IDE>;
- clock-names = "PCLK";
- sata = <&sata>;
-};
diff --git a/Documentation/devicetree/bindings/ata/faraday,ftide010.yaml b/Documentation/devicetree/bindings/ata/faraday,ftide010.yaml
new file mode 100644
index 000000000000..bfc6357476fd
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/faraday,ftide010.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/faraday,ftide010.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Faraday Technology FTIDE010 PATA controller
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+ This controller is the first Faraday IDE interface block, used in the
+ StorLink SL3512 and SL3516, later known as the Cortina Systems Gemini
+ platform. The controller can do PIO modes 0 through 4, Multi-word DMA
+ (MWDM) modes 0 through 2 and Ultra DMA modes 0 through 6.
+
+ On the Gemini platform, this PATA block is accompanied by a PATA to
+ SATA bridge in order to support SATA. This is why a phandle to that
+ controller is compulsory on that platform.
+
+ The timing properties are unique per-SoC, not per-board.
+
+properties:
+ compatible:
+ oneOf:
+ - const: faraday,ftide010
+ - items:
+ - const: cortina,gemini-pata
+ - const: faraday,ftide010
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+
+ clock-names:
+ const: PCLK
+
+ sata:
+ description:
+ phandle to the Gemini PATA to SATA bridge, if available
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - $ref: pata-common.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: cortina,gemini-pata
+
+ then:
+ required:
+ - sata
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/cortina,gemini-clock.h>
+
+ ide@63000000 {
+ compatible = "cortina,gemini-pata", "faraday,ftide010";
+ reg = <0x63000000 0x100>;
+ interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&gcc GEMINI_CLK_GATE_IDE>;
+ clock-names = "PCLK";
+ sata = <&sata>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ide-port@0 {
+ reg = <0>;
+ };
+ ide-port@1 {
+ reg = <1>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/ata/pata-common.yaml b/Documentation/devicetree/bindings/ata/pata-common.yaml
new file mode 100644
index 000000000000..fc5ebbe7108d
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/pata-common.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/pata-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common Properties for Parallel AT attachment (PATA) controllers
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+ This document defines device tree properties common to most Parallel
+ ATA (PATA, also known as IDE) AT attachment storage devices.
+ It doesn't constitue a device tree binding specification by itself but is
+ meant to be referenced by device tree bindings.
+
+ The PATA (IDE) controller-specific device tree bindings are responsible for
+ defining whether each property is required or optional.
+
+properties:
+ $nodename:
+ pattern: "^ide(@.*)?$"
+ description:
+ Specifies the host controller node. PATA host controller nodes are named
+ "ide".
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^ide-port@[0-1]$":
+ description: |
+ DT nodes for ports connected on the PATA host. The master drive will have
+ ID number 0 and the slave drive will have ID number 1. The PATA port
+ nodes will be named "ide-port".
+ type: object
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 1
+ description:
+ The ID number of the drive port, 0 for the master port and 1 for the
+ slave port.
+
+...
diff --git a/Documentation/devicetree/bindings/ata/sata-common.yaml b/Documentation/devicetree/bindings/ata/sata-common.yaml
new file mode 100644
index 000000000000..6783a4dec6b5
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/sata-common.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/sata-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common Properties for Serial AT attachment (SATA) controllers
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+ This document defines device tree properties common to most Serial
+ AT attachment (SATA) storage devices. It doesn't constitute a device tree
+ binding specification by itself but is meant to be referenced by device
+ tree bindings.
+
+ The SATA controller-specific device tree bindings are responsible for
+ defining whether each property is required or optional.
+
+properties:
+ $nodename:
+ pattern: "^sata(@.*)?$"
+ description:
+ Specifies the host controller node. SATA host controller nodes are named
+ "sata"
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^sata-port@[0-9a-e]$":
+ description: |
+ DT nodes for ports connected on the SATA host. The SATA port
+ nodes will be named "sata-port".
+ type: object
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 14
+ description:
+ The ID number of the drive port SATA can potentially use a port
+ multiplier making it possible to connect up to 15 disks to a single
+ SATA port.
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ahb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ahb-clk.yaml
new file mode 100644
index 000000000000..558db4b6ed17
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ahb-clk.yaml
@@ -0,0 +1,108 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-ahb-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 AHB Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-ahb-clk
+ - allwinner,sun6i-a31-ahb1-clk
+ - allwinner,sun8i-h3-ahb2-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun4i-a10-ahb-clk
+
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-ahb1-clk
+
+ then:
+ properties:
+ clocks:
+ maxItems: 4
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-h3-ahb2-clk
+
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+
+examples:
+ - |
+ ahb@1c20054 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-ahb-clk";
+ reg = <0x01c20054 0x4>;
+ clocks = <&axi>;
+ clock-output-names = "ahb";
+ };
+
+ - |
+ ahb1@1c20054 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun6i-a31-ahb1-clk";
+ reg = <0x01c20054 0x4>;
+ clocks = <&osc32k>, <&osc24M>, <&axi>, <&pll6 0>;
+ clock-output-names = "ahb1";
+ };
+
+ - |
+ ahb2_clk@1c2005c {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun8i-h3-ahb2-clk";
+ reg = <0x01c2005c 0x4>;
+ clocks = <&ahb1>, <&pll6d2>;
+ clock-output-names = "ahb2";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb0-clk.yaml
new file mode 100644
index 000000000000..b1e3d739beb2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb0-clk.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-apb0-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 APB0 Bus Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-apb0-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ apb0@1c20054 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-apb0-clk";
+ reg = <0x01c20054 0x4>;
+ clocks = <&ahb>;
+ clock-output-names = "apb0";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb1-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb1-clk.yaml
new file mode 100644
index 000000000000..51b7a6d4ea54
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb1-clk.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-apb1-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 APB1 Bus Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-apb1-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20058 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-apb1-clk";
+ reg = <0x01c20058 0x4>;
+ clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+ clock-output-names = "apb1";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-axi-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-axi-clk.yaml
new file mode 100644
index 000000000000..d801158e15de
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-axi-clk.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-axi-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 AXI Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-axi-clk
+ - allwinner,sun8i-a23-axi-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ axi@1c20054 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-axi-clk";
+ reg = <0x01c20054 0x4>;
+ clocks = <&cpu>;
+ clock-output-names = "axi";
+ };
+
+ - |
+ axi_clk@1c20050 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun8i-a23-axi-clk";
+ reg = <0x01c20050 0x4>;
+ clocks = <&cpu>;
+ clock-output-names = "axi";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-cpu-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-cpu-clk.yaml
new file mode 100644
index 000000000000..0dfafba1a168
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-cpu-clk.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-cpu-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 CPU Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-cpu-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ cpu@1c20054 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-cpu-clk";
+ reg = <0x01c20054 0x4>;
+ clocks = <&osc32k>, <&osc24M>, <&pll1>, <&dummy>;
+ clock-output-names = "cpu";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-display-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-display-clk.yaml
new file mode 100644
index 000000000000..7484a7ab7dea
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-display-clk.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-display-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Display Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ "#reset-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-display-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20104 {
+ #clock-cells = <0>;
+ #reset-cells = <0>;
+ compatible = "allwinner,sun4i-a10-display-clk";
+ reg = <0x01c20104 0x4>;
+ clocks = <&pll3>, <&pll7>, <&pll5 1>;
+ clock-output-names = "de-be";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
new file mode 100644
index 000000000000..ed1b2126a81b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
@@ -0,0 +1,152 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-gates-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Bus Gates Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ This additional argument passed to that clock is the offset of
+ the bit controlling this particular gate in the register.
+
+ compatible:
+ oneOf:
+ - const: allwinner,sun4i-a10-gates-clk
+ - const: allwinner,sun4i-a10-axi-gates-clk
+ - const: allwinner,sun4i-a10-ahb-gates-clk
+ - const: allwinner,sun5i-a10s-ahb-gates-clk
+ - const: allwinner,sun5i-a13-ahb-gates-clk
+ - const: allwinner,sun7i-a20-ahb-gates-clk
+ - const: allwinner,sun6i-a31-ahb1-gates-clk
+ - const: allwinner,sun8i-a23-ahb1-gates-clk
+ - const: allwinner,sun9i-a80-ahb0-gates-clk
+ - const: allwinner,sun9i-a80-ahb1-gates-clk
+ - const: allwinner,sun9i-a80-ahb2-gates-clk
+ - const: allwinner,sun4i-a10-apb0-gates-clk
+ - const: allwinner,sun5i-a10s-apb0-gates-clk
+ - const: allwinner,sun5i-a13-apb0-gates-clk
+ - const: allwinner,sun7i-a20-apb0-gates-clk
+ - const: allwinner,sun9i-a80-apb0-gates-clk
+ - const: allwinner,sun8i-a83t-apb0-gates-clk
+ - const: allwinner,sun4i-a10-apb1-gates-clk
+ - const: allwinner,sun5i-a13-apb1-gates-clk
+ - const: allwinner,sun5i-a10s-apb1-gates-clk
+ - const: allwinner,sun6i-a31-apb1-gates-clk
+ - const: allwinner,sun7i-a20-apb1-gates-clk
+ - const: allwinner,sun8i-a23-apb1-gates-clk
+ - const: allwinner,sun9i-a80-apb1-gates-clk
+ - const: allwinner,sun6i-a31-apb2-gates-clk
+ - const: allwinner,sun8i-a23-apb2-gates-clk
+ - const: allwinner,sun8i-a83t-bus-gates-clk
+ - const: allwinner,sun9i-a80-apbs-gates-clk
+ - const: allwinner,sun4i-a10-dram-gates-clk
+
+ - items:
+ - const: allwinner,sun5i-a13-dram-gates-clk
+ - const: allwinner,sun4i-a10-gates-clk
+
+ - items:
+ - const: allwinner,sun8i-h3-apb0-gates-clk
+ - const: allwinner,sun4i-a10-gates-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-indices:
+ minItems: 1
+ maxItems: 64
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 64
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-indices
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c2005c {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun4i-a10-axi-gates-clk";
+ reg = <0x01c2005c 0x4>;
+ clocks = <&axi>;
+ clock-indices = <0>;
+ clock-output-names = "axi_dram";
+ };
+
+ - |
+ clk@1c20060 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun4i-a10-ahb-gates-clk";
+ reg = <0x01c20060 0x8>;
+ clocks = <&ahb>;
+ clock-indices = <0>, <1>,
+ <2>, <3>,
+ <4>, <5>, <6>,
+ <7>, <8>, <9>,
+ <10>, <11>, <12>,
+ <13>, <14>, <16>,
+ <17>, <18>, <20>,
+ <21>, <22>, <23>,
+ <24>, <25>, <26>,
+ <32>, <33>, <34>,
+ <35>, <36>, <37>,
+ <40>, <41>, <43>,
+ <44>, <45>,
+ <46>, <47>,
+ <50>, <52>;
+ clock-output-names = "ahb_usb0", "ahb_ehci0",
+ "ahb_ohci0", "ahb_ehci1",
+ "ahb_ohci1", "ahb_ss", "ahb_dma",
+ "ahb_bist", "ahb_mmc0", "ahb_mmc1",
+ "ahb_mmc2", "ahb_mmc3", "ahb_ms",
+ "ahb_nand", "ahb_sdram", "ahb_ace",
+ "ahb_emac", "ahb_ts", "ahb_spi0",
+ "ahb_spi1", "ahb_spi2", "ahb_spi3",
+ "ahb_pata", "ahb_sata", "ahb_gps",
+ "ahb_ve", "ahb_tvd", "ahb_tve0",
+ "ahb_tve1", "ahb_lcd0", "ahb_lcd1",
+ "ahb_csi0", "ahb_csi1", "ahb_hdmi",
+ "ahb_de_be0", "ahb_de_be1",
+ "ahb_de_fe0", "ahb_de_fe1",
+ "ahb_mp", "ahb_mali400";
+ };
+
+
+ - |
+ clk@1c20068 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun4i-a10-apb0-gates-clk";
+ reg = <0x01c20068 0x4>;
+ clocks = <&apb0>;
+ clock-indices = <0>, <1>,
+ <2>, <3>,
+ <5>, <6>,
+ <7>, <10>;
+ clock-output-names = "apb0_codec", "apb0_spdif",
+ "apb0_ac97", "apb0_iis",
+ "apb0_pio", "apb0_ir0",
+ "apb0_ir1", "apb0_keypad";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mbus-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mbus-clk.yaml
new file mode 100644
index 000000000000..18f131e262b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mbus-clk.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mbus-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 MBUS Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ enum:
+ - allwinner,sun5i-a13-mbus-clk
+ - allwinner,sun8i-a23-mbus-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c2015c {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun5i-a13-mbus-clk";
+ reg = <0x01c2015c 0x4>;
+ clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+ clock-output-names = "mbus";
+ };
+
+ - |
+ clk@1c2015c {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun8i-a23-mbus-clk";
+ reg = <0x01c2015c 0x4>;
+ clocks = <&osc24M>, <&pll6 1>, <&pll5>;
+ clock-output-names = "mbus";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml
new file mode 100644
index 000000000000..5199285a661a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mmc-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Module 1 Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ There is three different outputs: the main clock, with the ID 0,
+ and the output and sample clocks, with the IDs 1 and 2,
+ respectively.
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-mmc-clk
+ - allwinner,sun9i-a80-mmc-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 3
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun4i-a10-mmc-clk
+
+then:
+ properties:
+ clocks:
+ maxItems: 3
+
+else:
+ properties:
+ clocks:
+ maxItems: 2
+
+examples:
+ - |
+ clk@1c20088 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun4i-a10-mmc-clk";
+ reg = <0x01c20088 0x4>;
+ clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+ clock-output-names = "mmc0",
+ "mmc0_output",
+ "mmc0_sample";
+ };
+
+ - |
+ clk@6000410 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun9i-a80-mmc-clk";
+ reg = <0x06000410 0x4>;
+ clocks = <&osc24M>, <&pll4>;
+ clock-output-names = "mmc0", "mmc0_output",
+ "mmc0_sample";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod0-clk.yaml
new file mode 100644
index 000000000000..3e2abe3e67c1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod0-clk.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mod0-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Module 0 Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun4i-a10-mod0-clk
+ - allwinner,sun9i-a80-mod0-clk
+
+ # The PRCM on the A31 and A23 will have the reg property missing,
+ # since it's set at the upper level node, and will be validated by
+ # PRCM's schema. Make sure we only validate standalone nodes.
+ required:
+ - compatible
+ - reg
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-mod0-clk
+ - allwinner,sun9i-a80-mod0-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ # On the A80, the PRCM mod0 clocks have 2 parents.
+ minItems: 2
+ maxItems: 3
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20080 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-mod0-clk";
+ reg = <0x01c20080 0x4>;
+ clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+ clock-output-names = "nand";
+ };
+
+ - |
+ clk@8001454 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-mod0-clk";
+ reg = <0x08001454 0x4>;
+ clocks = <&osc32k>, <&osc24M>;
+ clock-output-names = "r_ir";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod1-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod1-clk.yaml
new file mode 100644
index 000000000000..7ddb55c75cff
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod1-clk.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mod1-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Module 1 Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-mod1-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun4i-a10-pll2.h>
+
+ clk@1c200c0 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-mod1-clk";
+ reg = <0x01c200c0 0x4>;
+ clocks = <&pll2 SUN4I_A10_PLL2_8X>,
+ <&pll2 SUN4I_A10_PLL2_4X>,
+ <&pll2 SUN4I_A10_PLL2_2X>,
+ <&pll2 SUN4I_A10_PLL2_1X>;
+ clock-output-names = "spdif";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
new file mode 100644
index 000000000000..69cfa4a3d562
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-osc-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Gatable Oscillator Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-osc-clk
+
+ reg:
+ maxItems: 1
+
+ clock-frequency:
+ description: >
+ Frequency of the main oscillator.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clock-frequency
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ osc24M: clk@01c20050 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-osc-clk";
+ reg = <0x01c20050 0x4>;
+ clock-frequency = <24000000>;
+ clock-output-names = "osc24M";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll1-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll1-clk.yaml
new file mode 100644
index 000000000000..e9c4cf834aa7
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll1-clk.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll1-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 CPU PLL Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-pll1-clk
+ - allwinner,sun6i-a31-pll1-clk
+ - allwinner,sun8i-a23-pll1-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20000 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-pll1";
+ reg = <0x01c20000 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "osc24M";
+ };
+
+ - |
+ clk@1c20000 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun6i-a31-pll1-clk";
+ reg = <0x01c20000 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "pll1";
+ };
+
+ - |
+ clk@1c20000 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun8i-a23-pll1-clk";
+ reg = <0x01c20000 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "pll1";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll3-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll3-clk.yaml
new file mode 100644
index 000000000000..4b80a42fb3da
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll3-clk.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll3-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Video PLL Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-pll3-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20010 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-pll3-clk";
+ reg = <0x01c20010 0x4>;
+ clocks = <&osc3M>;
+ clock-output-names = "pll3";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll5-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll5-clk.yaml
new file mode 100644
index 000000000000..415bd77de53d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll5-clk.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll5-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 DRAM PLL Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ The first output is the DRAM clock output, the second is meant
+ for peripherals on the SoC.
+
+ compatible:
+ const: allwinner,sun4i-a10-pll5-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 2
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20020 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun4i-a10-pll5-clk";
+ reg = <0x01c20020 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "pll5_ddr", "pll5_other";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll6-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll6-clk.yaml
new file mode 100644
index 000000000000..ec5652f76027
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll6-clk.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll6-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Peripheral PLL Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ The first output is the SATA clock output, the second is the
+ regular PLL output, the third is a PLL output at twice the rate.
+
+ compatible:
+ const: allwinner,sun4i-a10-pll6-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 3
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20028 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun4i-a10-pll6-clk";
+ reg = <0x01c20028 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "pll6_sata", "pll6_other", "pll6";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml
new file mode 100644
index 000000000000..0a335c615efd
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 TCON Channel 0 Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-tcon-ch0-clk
+ - allwinner,sun4i-a10-tcon-ch1-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun4i-a10-tcon-ch0-clk
+
+then:
+ required:
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20118 {
+ #clock-cells = <0>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun4i-a10-tcon-ch0-clk";
+ reg = <0x01c20118 0x4>;
+ clocks = <&pll3>, <&pll7>, <&pll3x2>, <&pll7x2>;
+ clock-output-names = "tcon-ch0-sclk";
+ };
+
+ - |
+ clk@1c2012c {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-tcon-ch1-clk";
+ reg = <0x01c2012c 0x4>;
+ clocks = <&pll3>, <&pll7>, <&pll3x2>, <&pll7x2>;
+ clock-output-names = "tcon-ch1-sclk";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-usb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-usb-clk.yaml
new file mode 100644
index 000000000000..cd95d25bfe7c
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-usb-clk.yaml
@@ -0,0 +1,166 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-usb-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 USB Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ The additional ID argument passed to the clock shall refer to
+ the index of the output.
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-usb-clk
+ - allwinner,sun5i-a13-usb-clk
+ - allwinner,sun6i-a31-usb-clk
+ - allwinner,sun8i-a23-usb-clk
+ - allwinner,sun8i-h3-usb-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ minItems: 2
+ maxItems: 8
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun4i-a10-usb-clk
+
+ then:
+ properties:
+ clock-output-names:
+ maxItems: 3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun5i-a13-usb-clk
+
+ then:
+ properties:
+ clock-output-names:
+ maxItems: 2
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-usb-clk
+
+ then:
+ properties:
+ clock-output-names:
+ maxItems: 6
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-a23-usb-clk
+
+ then:
+ properties:
+ clock-output-names:
+ maxItems: 5
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-h3-usb-clk
+
+ then:
+ properties:
+ clock-output-names:
+ maxItems: 8
+
+examples:
+ - |
+ clk@1c200cc {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun4i-a10-usb-clk";
+ reg = <0x01c200cc 0x4>;
+ clocks = <&pll6 1>;
+ clock-output-names = "usb_ohci0", "usb_ohci1", "usb_phy";
+ };
+
+ - |
+ clk@1c200cc {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun5i-a13-usb-clk";
+ reg = <0x01c200cc 0x4>;
+ clocks = <&pll6 1>;
+ clock-output-names = "usb_ohci0", "usb_phy";
+ };
+
+ - |
+ clk@1c200cc {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun6i-a31-usb-clk";
+ reg = <0x01c200cc 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "usb_phy0", "usb_phy1", "usb_phy2",
+ "usb_ohci0", "usb_ohci1",
+ "usb_ohci2";
+ };
+
+ - |
+ clk@1c200cc {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun8i-a23-usb-clk";
+ reg = <0x01c200cc 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "usb_phy0", "usb_phy1", "usb_hsic",
+ "usb_hsic_12M", "usb_ohci0";
+ };
+
+ - |
+ clk@1c200cc {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun8i-h3-usb-clk";
+ reg = <0x01c200cc 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "usb_phy0", "usb_phy1",
+ "usb_phy2", "usb_phy3",
+ "usb_ohci0", "usb_ohci1",
+ "usb_ohci2", "usb_ohci3";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ve-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ve-clk.yaml
new file mode 100644
index 000000000000..5dfd0c1c27b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ve-clk.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-ve-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Video Engine Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ "#reset-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun4i-a10-ve-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c2013c {
+ #clock-cells = <0>;
+ #reset-cells = <0>;
+ compatible = "allwinner,sun4i-a10-ve-clk";
+ reg = <0x01c2013c 0x4>;
+ clocks = <&pll4>;
+ clock-output-names = "ve";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun5i-a13-ahb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun5i-a13-ahb-clk.yaml
new file mode 100644
index 000000000000..99add7991c48
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun5i-a13-ahb-clk.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun5i-a13-ahb-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A13 AHB Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun5i-a13-ahb-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ ahb@1c20054 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun5i-a13-ahb-clk";
+ reg = <0x01c20054 0x4>;
+ clocks = <&axi>, <&cpu>, <&pll6 1>;
+ clock-output-names = "ahb";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun6i-a31-pll6-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun6i-a31-pll6-clk.yaml
new file mode 100644
index 000000000000..5f377205af71
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun6i-a31-pll6-clk.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun6i-a31-pll6-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 Peripheral PLL Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ The first output is the regular PLL output, the second is a PLL
+ output at twice the rate.
+
+ compatible:
+ const: allwinner,sun6i-a31-pll6-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 2
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20028 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun6i-a31-pll6-clk";
+ reg = <0x01c20028 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "pll6", "pll6x2";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-gmac-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-gmac-clk.yaml
new file mode 100644
index 000000000000..59e5dce1b65a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-gmac-clk.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun7i-a20-gmac-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A20 GMAC TX Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun7i-a20-gmac-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+ description: >
+ The parent clocks shall be fixed rate dummy clocks at 25 MHz and
+ 125 MHz, respectively.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20164 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun7i-a20-gmac-clk";
+ reg = <0x01c20164 0x4>;
+ clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>;
+ clock-output-names = "gmac_tx";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-out-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-out-clk.yaml
new file mode 100644
index 000000000000..c745733bcf04
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-out-clk.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun7i-a20-out-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A20 Output Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun7i-a20-out-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c201f0 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun7i-a20-out-clk";
+ reg = <0x01c201f0 0x4>;
+ clocks = <&osc24M_32k>, <&osc32k>, <&osc24M>;
+ clock-output-names = "clk_out_a";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun8i-h3-bus-gates-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun8i-h3-bus-gates-clk.yaml
new file mode 100644
index 000000000000..3eb2bf65b230
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun8i-h3-bus-gates-clk.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun8i-h3-bus-gates-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Bus Gates Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ This additional argument passed to that clock is the offset of
+ the bit controlling this particular gate in the register.
+
+ compatible:
+ const: allwinner,sun8i-h3-bus-gates-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 4
+
+ clock-names:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-indices:
+ minItems: 1
+ maxItems: 64
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 64
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-indices
+ - clock-names
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c20060 {
+ #clock-cells = <1>;
+ compatible = "allwinner,sun8i-h3-bus-gates-clk";
+ reg = <0x01c20060 0x14>;
+ clocks = <&ahb1>, <&ahb2>, <&apb1>, <&apb2>;
+ clock-names = "ahb1", "ahb2", "apb1", "apb2";
+ clock-indices = <5>, <6>, <8>,
+ <9>, <10>, <13>,
+ <14>, <17>, <18>,
+ <19>, <20>,
+ <21>, <23>,
+ <24>, <25>,
+ <26>, <27>,
+ <28>, <29>,
+ <30>, <31>, <32>,
+ <35>, <36>, <37>,
+ <40>, <41>, <43>,
+ <44>, <52>, <53>,
+ <54>, <64>,
+ <65>, <69>, <72>,
+ <76>, <77>, <78>,
+ <96>, <97>, <98>,
+ <112>, <113>,
+ <114>, <115>,
+ <116>, <128>, <135>;
+ clock-output-names = "bus_ce", "bus_dma", "bus_mmc0",
+ "bus_mmc1", "bus_mmc2", "bus_nand",
+ "bus_sdram", "bus_gmac", "bus_ts",
+ "bus_hstimer", "bus_spi0",
+ "bus_spi1", "bus_otg",
+ "bus_otg_ehci0", "bus_ehci1",
+ "bus_ehci2", "bus_ehci3",
+ "bus_otg_ohci0", "bus_ohci1",
+ "bus_ohci2", "bus_ohci3", "bus_ve",
+ "bus_lcd0", "bus_lcd1", "bus_deint",
+ "bus_csi", "bus_tve", "bus_hdmi",
+ "bus_de", "bus_gpu", "bus_msgbox",
+ "bus_spinlock", "bus_codec",
+ "bus_spdif", "bus_pio", "bus_ths",
+ "bus_i2s0", "bus_i2s1", "bus_i2s2",
+ "bus_i2c0", "bus_i2c1", "bus_i2c2",
+ "bus_uart0", "bus_uart1",
+ "bus_uart2", "bus_uart3",
+ "bus_scr", "bus_ephy", "bus_dbg";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-ahb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-ahb-clk.yaml
new file mode 100644
index 000000000000..d178da90aaec
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-ahb-clk.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-ahb-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 AHB Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun9i-a80-ahb-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@6000060 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun9i-a80-ahb-clk";
+ reg = <0x06000060 0x4>;
+ clocks = <&gt_clk>, <&pll4>, <&pll12>, <&pll12>;
+ clock-output-names = "ahb0";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-apb0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-apb0-clk.yaml
new file mode 100644
index 000000000000..0351c79bd221
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-apb0-clk.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-apb0-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 APB0 Bus Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ enum:
+ - allwinner,sun9i-a80-apb0-clk
+ - allwinner,sun9i-a80-apb1-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@6000070 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun9i-a80-apb0-clk";
+ reg = <0x06000070 0x4>;
+ clocks = <&osc24M>, <&pll4>;
+ clock-output-names = "apb0";
+ };
+
+ - |
+ clk@6000074 {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun9i-a80-apb1-clk";
+ reg = <0x06000074 0x4>;
+ clocks = <&osc24M>, <&pll4>;
+ clock-output-names = "apb1";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-cpus-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-cpus-clk.yaml
new file mode 100644
index 000000000000..24d5b2f1a314
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-cpus-clk.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-cpus-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 CPUS Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun9i-a80-cpus-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@8001410 {
+ compatible = "allwinner,sun9i-a80-cpus-clk";
+ reg = <0x08001410 0x4>;
+ #clock-cells = <0>;
+ clocks = <&osc32k>, <&osc24M>, <&pll4>, <&pll3>;
+ clock-output-names = "cpus";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml
new file mode 100644
index 000000000000..07f38def7dc3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-gt-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 GT Bus Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun9i-a80-gt-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming order.
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@0600005c {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun9i-a80-gt-clk";
+ reg = <0x0600005c 0x4>;
+ clocks = <&osc24M>, <&pll4>, <&pll12>, <&pll12>;
+ clock-output-names = "gt";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-mmc-config-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-mmc-config-clk.yaml
new file mode 100644
index 000000000000..20dc115fa211
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-mmc-config-clk.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-mmc-config-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 MMC Configuration Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+description: >
+ There is one clock/reset output per mmc controller. The number of
+ outputs is determined by the size of the address block, which is
+ related to the overall mmc block.
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ The additional ID argument passed to the clock shall refer to
+ the index of the output.
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun9i-a80-mmc-config-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 4
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@1c13000 {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun9i-a80-mmc-config-clk";
+ reg = <0x01c13000 0x10>;
+ clocks = <&ahb0_gates 8>;
+ resets = <&ahb0_resets 8>;
+ clock-output-names = "mmc0_config", "mmc1_config",
+ "mmc2_config", "mmc3_config";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-pll4-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-pll4-clk.yaml
new file mode 100644
index 000000000000..b76bab6a30e9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-pll4-clk.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-pll4-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 Peripheral PLL Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun9i-a80-pll4-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@600000c {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun9i-a80-pll4-clk";
+ reg = <0x0600000c 0x4>;
+ clocks = <&osc24M>;
+ clock-output-names = "pll4";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-mod-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-mod-clk.yaml
new file mode 100644
index 000000000000..15218d10e78e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-mod-clk.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-usb-mod-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 USB Module Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ The additional ID argument passed to the clock shall refer to
+ the index of the output.
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun9i-a80-usb-mod-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 6
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@a08000 {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun9i-a80-usb-mod-clk";
+ reg = <0x00a08000 0x4>;
+ clocks = <&ahb1_gates 1>;
+ clock-output-names = "usb0_ahb", "usb_ohci0",
+ "usb1_ahb", "usb_ohci1",
+ "usb2_ahb", "usb_ohci2";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-phy-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-phy-clk.yaml
new file mode 100644
index 000000000000..2569041684e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-phy-clk.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-usb-phy-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 USB PHY Clock Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ The additional ID argument passed to the clock shall refer to
+ the index of the output.
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun9i-a80-usb-phy-clk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 6
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-output-names
+
+additionalProperties: false
+
+examples:
+ - |
+ clk@a08004 {
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ compatible = "allwinner,sun9i-a80-usb-phy-clk";
+ reg = <0x00a08004 0x4>;
+ clocks = <&ahb1_gates 1>;
+ clock-output-names = "usb_phy0", "usb_hsic1_480M",
+ "usb_phy1", "usb_hsic2_480M",
+ "usb_phy2", "usb_hsic_12M";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.txt
deleted file mode 100644
index fb9495ea582c..000000000000
--- a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-STMicroelectronics STM32 Peripheral Reset Clock Controller
-==========================================================
-
-The RCC IP is both a reset and a clock controller.
-
-RCC makes also power management (resume/supend and wakeup interrupt).
-
-Please also refer to reset.txt for common reset controller binding usage.
-
-Please also refer to clock-bindings.txt for common clock controller
-binding usage.
-
-
-Required properties:
-- compatible: "st,stm32mp1-rcc", "syscon"
-- reg: should be register base and length as documented in the datasheet
-- #clock-cells: 1, device nodes should specify the clock in their
- "clocks" property, containing a phandle to the clock device node,
- an index specifying the clock to use.
-- #reset-cells: Shall be 1
-- interrupts: Should contain a general interrupt line and a interrupt line
- to the wake-up of processor (CSTOP).
-
-Example:
- rcc: rcc@50000000 {
- compatible = "st,stm32mp1-rcc", "syscon";
- reg = <0x50000000 0x1000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- interrupts = <GIC_SPI 5 IRQ_TYPE_NONE>,
- <GIC_SPI 145 IRQ_TYPE_NONE>;
- };
-
-Specifying clocks
-=================
-
-All available clocks are defined as preprocessor macros in
-dt-bindings/clock/stm32mp1-clks.h header and can be used in device
-tree sources.
-
-Specifying softreset control of devices
-=======================================
-
-Device nodes should specify the reset channel required in their "resets"
-property, containing a phandle to the reset device node and an index specifying
-which channel to use.
-The index is the bit number within the RCC registers bank, starting from RCC
-base address.
-It is calculated as: index = register_offset / 4 * 32 + bit_offset.
-Where bit_offset is the bit offset within the register.
-
-For example on STM32MP1, for LTDC reset:
- ltdc = APB4_RSTSETR_offset / 4 * 32 + LTDC_bit_offset
- = 0x180 / 4 * 32 + 0 = 3072
-
-The list of valid indices for STM32MP1 is available in:
-include/dt-bindings/reset-controller/stm32mp1-resets.h
-
-This file implements defines like:
-#define LTDC_R 3072
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
new file mode 100644
index 000000000000..b8f91e444d2f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/clock/st,stm32mp1-rcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Reset Clock Controller Binding
+
+maintainers:
+ - Gabriel Fernandez <gabriel.fernandez@st.com>
+
+description: |
+ The RCC IP is both a reset and a clock controller.
+ RCC makes also power management (resume/supend and wakeup interrupt).
+ Please also refer to reset.txt for common reset controller binding usage.
+
+ This binding uses common clock bindings
+ Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+ Specifying clocks
+ =================
+
+ All available clocks are defined as preprocessor macros in
+ dt-bindings/clock/stm32mp1-clks.h header and can be used in device
+ tree sources.
+
+ Specifying softreset control of devices
+ =======================================
+
+ Device nodes should specify the reset channel required in their "resets"
+ property, containing a phandle to the reset device node and an index specifying
+ which channel to use.
+ The index is the bit number within the RCC registers bank, starting from RCC
+ base address.
+ It is calculated as: index = register_offset / 4 * 32 + bit_offset.
+ Where bit_offset is the bit offset within the register.
+
+ For example on STM32MP1, for LTDC reset:
+ ltdc = APB4_RSTSETR_offset / 4 * 32 + LTDC_bit_offset
+ = 0x180 / 4 * 32 + 0 = 3072
+
+ The list of valid indices for STM32MP1 is available in:
+ include/dt-bindings/reset-controller/stm32mp1-resets.h
+
+ This file implements defines like:
+ #define LTDC_R 3072
+
+properties:
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ items:
+ - const: st,stm32mp1-rcc
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ rcc: rcc@50000000 {
+ compatible = "st,stm32mp1-rcc", "syscon";
+ reg = <0x50000000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
deleted file mode 100644
index 1a042e20b115..000000000000
--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ /dev/null
@@ -1,225 +0,0 @@
-Device Tree Clock bindings for arch-sunxi
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : shall be one of the following:
- "allwinner,sun4i-a10-osc-clk" - for a gatable oscillator
- "allwinner,sun4i-a10-pll1-clk" - for the main PLL clock and PLL4
- "allwinner,sun6i-a31-pll1-clk" - for the main PLL clock on A31
- "allwinner,sun8i-a23-pll1-clk" - for the main PLL clock on A23
- "allwinner,sun4i-a10-pll3-clk" - for the video PLL clock on A10
- "allwinner,sun9i-a80-pll4-clk" - for the peripheral PLLs on A80
- "allwinner,sun4i-a10-pll5-clk" - for the PLL5 clock
- "allwinner,sun4i-a10-pll6-clk" - for the PLL6 clock
- "allwinner,sun6i-a31-pll6-clk" - for the PLL6 clock on A31
- "allwinner,sun9i-a80-gt-clk" - for the GT bus clock on A80
- "allwinner,sun4i-a10-cpu-clk" - for the CPU multiplexer clock
- "allwinner,sun4i-a10-axi-clk" - for the AXI clock
- "allwinner,sun8i-a23-axi-clk" - for the AXI clock on A23
- "allwinner,sun4i-a10-gates-clk" - for generic gates on all compatible SoCs
- "allwinner,sun4i-a10-axi-gates-clk" - for the AXI gates
- "allwinner,sun4i-a10-ahb-clk" - for the AHB clock
- "allwinner,sun5i-a13-ahb-clk" - for the AHB clock on A13
- "allwinner,sun9i-a80-ahb-clk" - for the AHB bus clocks on A80
- "allwinner,sun4i-a10-ahb-gates-clk" - for the AHB gates on A10
- "allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13
- "allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s
- "allwinner,sun7i-a20-ahb-gates-clk" - for the AHB gates on A20
- "allwinner,sun6i-a31-ar100-clk" - for the AR100 on A31
- "allwinner,sun9i-a80-cpus-clk" - for the CPUS on A80
- "allwinner,sun6i-a31-ahb1-clk" - for the AHB1 clock on A31
- "allwinner,sun8i-h3-ahb2-clk" - for the AHB2 clock on H3
- "allwinner,sun6i-a31-ahb1-gates-clk" - for the AHB1 gates on A31
- "allwinner,sun8i-a23-ahb1-gates-clk" - for the AHB1 gates on A23
- "allwinner,sun9i-a80-ahb0-gates-clk" - for the AHB0 gates on A80
- "allwinner,sun9i-a80-ahb1-gates-clk" - for the AHB1 gates on A80
- "allwinner,sun9i-a80-ahb2-gates-clk" - for the AHB2 gates on A80
- "allwinner,sun4i-a10-apb0-clk" - for the APB0 clock
- "allwinner,sun6i-a31-apb0-clk" - for the APB0 clock on A31
- "allwinner,sun8i-a23-apb0-clk" - for the APB0 clock on A23
- "allwinner,sun9i-a80-apb0-clk" - for the APB0 bus clock on A80
- "allwinner,sun8i-a83t-apb0-gates-clk" - for the APB0 gates on A83T
- "allwinner,sun4i-a10-apb0-gates-clk" - for the APB0 gates on A10
- "allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13
- "allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s
- "allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31
- "allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
- "allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23
- "allwinner,sun8i-h3-apb0-gates-clk" - for the APB0 gates on H3
- "allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80
- "allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
- "allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80
- "allwinner,sun4i-a10-apb1-gates-clk" - for the APB1 gates on A10
- "allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13
- "allwinner,sun5i-a10s-apb1-gates-clk" - for the APB1 gates on A10s
- "allwinner,sun6i-a31-apb1-gates-clk" - for the APB1 gates on A31
- "allwinner,sun7i-a20-apb1-gates-clk" - for the APB1 gates on A20
- "allwinner,sun8i-a23-apb1-gates-clk" - for the APB1 gates on A23
- "allwinner,sun9i-a80-apb1-gates-clk" - for the APB1 gates on A80
- "allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31
- "allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23
- "allwinner,sun8i-a83t-bus-gates-clk" - for the bus gates on A83T
- "allwinner,sun8i-h3-bus-gates-clk" - for the bus gates on H3
- "allwinner,sun9i-a80-apbs-gates-clk" - for the APBS gates on A80
- "allwinner,sun4i-a10-display-clk" - for the display clocks on the A10
- "allwinner,sun4i-a10-dram-gates-clk" - for the DRAM gates on A10
- "allwinner,sun5i-a13-dram-gates-clk" - for the DRAM gates on A13
- "allwinner,sun5i-a13-mbus-clk" - for the MBUS clock on A13
- "allwinner,sun4i-a10-mmc-clk" - for the MMC clock
- "allwinner,sun9i-a80-mmc-clk" - for mmc module clocks on A80
- "allwinner,sun9i-a80-mmc-config-clk" - for mmc gates + resets on A80
- "allwinner,sun4i-a10-mod0-clk" - for the module 0 family of clocks
- "allwinner,sun9i-a80-mod0-clk" - for module 0 (storage) clocks on A80
- "allwinner,sun8i-a23-mbus-clk" - for the MBUS clock on A23
- "allwinner,sun7i-a20-out-clk" - for the external output clocks
- "allwinner,sun7i-a20-gmac-clk" - for the GMAC clock module on A20/A31
- "allwinner,sun4i-a10-tcon-ch0-clk" - for the TCON channel 0 clock on the A10
- "allwinner,sun4i-a10-tcon-ch1-clk" - for the TCON channel 1 clock on the A10
- "allwinner,sun4i-a10-usb-clk" - for usb gates + resets on A10 / A20
- "allwinner,sun5i-a13-usb-clk" - for usb gates + resets on A13
- "allwinner,sun6i-a31-usb-clk" - for usb gates + resets on A31
- "allwinner,sun8i-a23-usb-clk" - for usb gates + resets on A23
- "allwinner,sun8i-h3-usb-clk" - for usb gates + resets on H3
- "allwinner,sun9i-a80-usb-mod-clk" - for usb gates + resets on A80
- "allwinner,sun9i-a80-usb-phy-clk" - for usb phy gates + resets on A80
- "allwinner,sun4i-a10-ve-clk" - for the Video Engine clock
- "allwinner,sun6i-a31-display-clk" - for the display clocks
-
-Required properties for all clocks:
-- reg : shall be the control register address for the clock.
-- clocks : shall be the input parent clock(s) phandle for the clock. For
- multiplexed clocks, the list order must match the hardware
- programming order.
-- #clock-cells : from common clock binding; shall be set to 0 except for
- the following compatibles where it shall be set to 1:
- "allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk",
- "allwinner,sun4i-pll6-clk", "allwinner,sun6i-a31-pll6-clk",
- "allwinner,*-usb-clk", "allwinner,*-mmc-clk",
- "allwinner,*-mmc-config-clk"
-- clock-output-names : shall be the corresponding names of the outputs.
- If the clock module only has one output, the name shall be the
- module name.
-
-And "allwinner,*-usb-clk" clocks also require:
-- reset-cells : shall be set to 1
-
-The "allwinner,sun4i-a10-ve-clk" clock also requires:
-- reset-cells : shall be set to 0
-
-The "allwinner,sun9i-a80-mmc-config-clk" clock also requires:
-- #reset-cells : shall be set to 1
-- resets : shall be the reset control phandle for the mmc block.
-
-For "allwinner,sun7i-a20-gmac-clk", the parent clocks shall be fixed rate
-dummy clocks at 25 MHz and 125 MHz, respectively. See example.
-
-Clock consumers should specify the desired clocks they use with a
-"clocks" phandle cell. Consumers that are using a gated clock should
-provide an additional ID in their clock property. This ID is the
-offset of the bit controlling this particular gate in the register.
-For the other clocks with "#clock-cells" = 1, the additional ID shall
-refer to the index of the output.
-
-For "allwinner,sun6i-a31-pll6-clk", there are 2 outputs. The first output
-is the normal PLL6 output, or "pll6". The second output is rate doubled
-PLL6, or "pll6x2".
-
-The "allwinner,*-mmc-clk" clocks have three different outputs: the
-main clock, with the ID 0, and the output and sample clocks, with the
-IDs 1 and 2, respectively.
-
-The "allwinner,sun9i-a80-mmc-config-clk" clock has one clock/reset output
-per mmc controller. The number of outputs is determined by the size of
-the address block, which is related to the overall mmc block.
-
-For example:
-
-osc24M: clk@1c20050 {
- #clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-osc-clk";
- reg = <0x01c20050 0x4>;
- clocks = <&osc24M_fixed>;
- clock-output-names = "osc24M";
-};
-
-pll1: clk@1c20000 {
- #clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-pll1-clk";
- reg = <0x01c20000 0x4>;
- clocks = <&osc24M>;
- clock-output-names = "pll1";
-};
-
-pll5: clk@1c20020 {
- #clock-cells = <1>;
- compatible = "allwinner,sun4i-pll5-clk";
- reg = <0x01c20020 0x4>;
- clocks = <&osc24M>;
- clock-output-names = "pll5_ddr", "pll5_other";
-};
-
-pll6: clk@1c20028 {
- #clock-cells = <1>;
- compatible = "allwinner,sun6i-a31-pll6-clk";
- reg = <0x01c20028 0x4>;
- clocks = <&osc24M>;
- clock-output-names = "pll6", "pll6x2";
-};
-
-cpu: cpu@1c20054 {
- #clock-cells = <0>;
- compatible = "allwinner,sun4i-a10-cpu-clk";
- reg = <0x01c20054 0x4>;
- clocks = <&osc32k>, <&osc24M>, <&pll1>;
- clock-output-names = "cpu";
-};
-
-mmc0_clk: clk@1c20088 {
- #clock-cells = <1>;
- compatible = "allwinner,sun4i-a10-mmc-clk";
- reg = <0x01c20088 0x4>;
- clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
- clock-output-names = "mmc0", "mmc0_output", "mmc0_sample";
-};
-
-mii_phy_tx_clk: clk@2 {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <25000000>;
- clock-output-names = "mii_phy_tx";
-};
-
-gmac_int_tx_clk: clk@3 {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <125000000>;
- clock-output-names = "gmac_int_tx";
-};
-
-gmac_clk: clk@1c20164 {
- #clock-cells = <0>;
- compatible = "allwinner,sun7i-a20-gmac-clk";
- reg = <0x01c20164 0x4>;
- /*
- * The first clock must be fixed at 25MHz;
- * the second clock must be fixed at 125MHz
- */
- clocks = <&mii_phy_tx_clk>, <&gmac_int_tx_clk>;
- clock-output-names = "gmac";
-};
-
-mmc_config_clk: clk@1c13000 {
- compatible = "allwinner,sun9i-a80-mmc-config-clk";
- reg = <0x01c13000 0x10>;
- clocks = <&ahb0_gates 8>;
- clock-names = "ahb";
- resets = <&ahb0_resets 8>;
- reset-names = "ahb";
- #clock-cells = <1>;
- #reset-cells = <1>;
- clock-output-names = "mmc0_config", "mmc1_config",
- "mmc2_config", "mmc3_config";
-};
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.txt b/Documentation/devicetree/bindings/connector/usb-connector.txt
index d357987181ee..88578ac1a8a7 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.txt
+++ b/Documentation/devicetree/bindings/connector/usb-connector.txt
@@ -1,8 +1,8 @@
USB Connector
=============
-USB connector node represents physical USB connector. It should be
-a child of USB interface controller.
+A USB connector node represents a physical USB connector. It should be
+a child of a USB interface controller.
Required properties:
- compatible: describes type of the connector, must be one of:
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-backend.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-backend.yaml
new file mode 100644
index 000000000000..86057d541065
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-backend.yaml
@@ -0,0 +1,291 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-backend.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Display Engine Backend Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ The display engine backend exposes layers and sprites to the system.
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-display-backend
+ - allwinner,sun5i-a13-display-backend
+ - allwinner,sun6i-a31-display-backend
+ - allwinner,sun7i-a20-display-backend
+ - allwinner,sun8i-a23-display-backend
+ - allwinner,sun8i-a33-display-backend
+ - allwinner,sun9i-a80-display-backend
+
+ reg:
+ minItems: 1
+ maxItems: 2
+ items:
+ - description: Display Backend registers
+ - description: SAT registers
+
+ reg-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ - const: be
+ - const: sat
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 3
+ maxItems: 4
+ items:
+ - description: The backend interface clock
+ - description: The backend module clock
+ - description: The backend DRAM clock
+ - description: The SAT clock
+
+ clock-names:
+ minItems: 3
+ maxItems: 4
+ items:
+ - const: ahb
+ - const: mod
+ - const: ram
+ - const: sat
+
+ resets:
+ minItems: 1
+ maxItems: 2
+ items:
+ - description: The Backend reset line
+ - description: The SAT reset line
+
+ reset-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ - const: be
+ - const: sat
+
+ # FIXME: This should be made required eventually once every SoC will
+ # have the MBUS declared.
+ interconnects:
+ maxItems: 1
+
+ # FIXME: This should be made required eventually once every SoC will
+ # have the MBUS declared.
+ interconnect-names:
+ const: dma-mem
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-a33-display-backend
+
+then:
+ properties:
+ reg:
+ minItems: 2
+
+ reg-names:
+ minItems: 2
+
+ clocks:
+ minItems: 4
+
+ clock-names:
+ minItems: 4
+
+ resets:
+ minItems: 2
+
+ reset-names:
+ minItems: 2
+
+ required:
+ - reg-names
+ - reset-names
+
+else:
+ properties:
+ reg:
+ maxItems: 1
+
+ reg-names:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+
+ clock-names:
+ maxItems: 3
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ maxItems: 1
+
+examples:
+ - |
+ /*
+ * This comes from the clock/sun4i-a10-ccu.h and
+ * reset/sun4i-a10-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+
+ #define CLK_AHB_DE_BE0 42
+ #define CLK_DRAM_DE_BE0 140
+ #define CLK_DE_BE0 144
+ #define RST_DE_BE0 5
+
+ display-backend@1e60000 {
+ compatible = "allwinner,sun4i-a10-display-backend";
+ reg = <0x01e60000 0x10000>;
+ interrupts = <47>;
+ clocks = <&ccu CLK_AHB_DE_BE0>, <&ccu CLK_DE_BE0>,
+ <&ccu CLK_DRAM_DE_BE0>;
+ clock-names = "ahb", "mod",
+ "ram";
+ resets = <&ccu RST_DE_BE0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&fe0_out_be0>;
+ };
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&fe1_out_be0>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_in_be0>;
+ };
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon1_in_be0>;
+ };
+ };
+ };
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ /*
+ * This comes from the clock/sun8i-a23-a33-ccu.h and
+ * reset/sun8i-a23-a33-ccu.h headers, but we can't include them
+ * since it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+
+ #define CLK_BUS_DE_BE 40
+ #define CLK_BUS_SAT 46
+ #define CLK_DRAM_DE_BE 84
+ #define CLK_DE_BE 85
+ #define RST_BUS_DE_BE 21
+ #define RST_BUS_SAT 27
+
+ display-backend@1e60000 {
+ compatible = "allwinner,sun8i-a33-display-backend";
+ reg = <0x01e60000 0x10000>, <0x01e80000 0x1000>;
+ reg-names = "be", "sat";
+ interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DE_BE>, <&ccu CLK_DE_BE>,
+ <&ccu CLK_DRAM_DE_BE>, <&ccu CLK_BUS_SAT>;
+ clock-names = "ahb", "mod",
+ "ram", "sat";
+ resets = <&ccu RST_BUS_DE_BE>, <&ccu RST_BUS_SAT>;
+ reset-names = "be", "sat";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&fe0_out_be0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ endpoint {
+ remote-endpoint = <&drc0_in_be0>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-engine.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-engine.yaml
new file mode 100644
index 000000000000..944ff2f1cf93
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-engine.yaml
@@ -0,0 +1,114 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Display Engine Pipeline Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ The display engine pipeline (and its entry point, since it can be
+ either directly the backend or the frontend) is represented as an
+ extra node.
+
+ The Allwinner A10 Display pipeline is composed of several components
+ that are going to be documented below:
+
+ For all connections between components up to the TCONs in the
+ display pipeline, when there are multiple components of the same
+ type at the same depth, the local endpoint ID must be the same as
+ the remote component's index. For example, if the remote endpoint is
+ Frontend 1, then the local endpoint ID must be 1.
+
+ Frontend 0 [0] ------- [0] Backend 0 [0] ------- [0] TCON 0
+ [1] -- -- [1] [1] -- -- [1]
+ \ / \ /
+ X X
+ / \ / \
+ [0] -- -- [0] [0] -- -- [0]
+ Frontend 1 [1] ------- [1] Backend 1 [1] ------- [1] TCON 1
+
+ For a two pipeline system such as the one depicted above, the lines
+ represent the connections between the components, while the numbers
+ within the square brackets corresponds to the ID of the local endpoint.
+
+ The same rule also applies to DE 2.0 mixer-TCON connections:
+
+ Mixer 0 [0] ----------- [0] TCON 0
+ [1] ---- ---- [1]
+ \ /
+ X
+ / \
+ [0] ---- ---- [0]
+ Mixer 1 [1] ----------- [1] TCON 1
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-display-engine
+ - allwinner,sun5i-a10s-display-engine
+ - allwinner,sun5i-a13-display-engine
+ - allwinner,sun6i-a31-display-engine
+ - allwinner,sun6i-a31s-display-engine
+ - allwinner,sun7i-a20-display-engine
+ - allwinner,sun8i-a23-display-engine
+ - allwinner,sun8i-a33-display-engine
+ - allwinner,sun8i-a83t-display-engine
+ - allwinner,sun8i-h3-display-engine
+ - allwinner,sun8i-r40-display-engine
+ - allwinner,sun8i-v3s-display-engine
+ - allwinner,sun9i-a80-display-engine
+ - allwinner,sun50i-a64-display-engine
+ - allwinner,sun50i-h6-display-engine
+
+ allwinner,pipelines:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/phandle-array
+ - minItems: 1
+ maxItems: 2
+ description: |
+ Available display engine frontends (DE 1.0) or mixers (DE
+ 2.0/3.0) available.
+
+required:
+ - compatible
+ - allwinner,pipelines
+
+additionalProperties: false
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun4i-a10-display-engine
+ - allwinner,sun6i-a31-display-engine
+ - allwinner,sun6i-a31s-display-engine
+ - allwinner,sun7i-a20-display-engine
+ - allwinner,sun8i-a83t-display-engine
+ - allwinner,sun8i-r40-display-engine
+ - allwinner,sun9i-a80-display-engine
+ - allwinner,sun50i-a64-display-engine
+
+then:
+ properties:
+ allwinner,pipelines:
+ minItems: 2
+
+else:
+ properties:
+ allwinner,pipelines:
+ maxItems: 1
+
+examples:
+ - |
+ de: display-engine {
+ compatible = "allwinner,sun4i-a10-display-engine";
+ allwinner,pipelines = <&fe0>, <&fe1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
new file mode 100644
index 000000000000..3eb1c2bbf4e7
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
@@ -0,0 +1,138 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-frontend.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Display Engine Frontend Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ The display engine frontend does formats conversion, scaling,
+ deinterlacing and color space conversion.
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-display-frontend
+ - allwinner,sun5i-a13-display-frontend
+ - allwinner,sun6i-a31-display-frontend
+ - allwinner,sun7i-a20-display-frontend
+ - allwinner,sun8i-a23-display-frontend
+ - allwinner,sun8i-a33-display-frontend
+ - allwinner,sun9i-a80-display-frontend
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: The frontend interface clock
+ - description: The frontend module clock
+ - description: The frontend DRAM clock
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: mod
+ - const: ram
+
+ # FIXME: This should be made required eventually once every SoC will
+ # have the MBUS declared.
+ interconnects:
+ maxItems: 1
+
+ # FIXME: This should be made required eventually once every SoC will
+ # have the MBUS declared.
+ interconnect-names:
+ const: dma-mem
+
+ resets:
+ maxItems: 1
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun4i-a10-ccu.h>
+ #include <dt-bindings/reset/sun4i-a10-ccu.h>
+
+ fe0: display-frontend@1e00000 {
+ compatible = "allwinner,sun4i-a10-display-frontend";
+ reg = <0x01e00000 0x20000>;
+ interrupts = <47>;
+ clocks = <&ccu CLK_AHB_DE_FE0>, <&ccu CLK_DE_FE0>,
+ <&ccu CLK_DRAM_DE_FE0>;
+ clock-names = "ahb", "mod",
+ "ram";
+ resets = <&ccu RST_DE_FE0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fe0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ fe0_out_be0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&be0_in_fe0>;
+ };
+
+ fe0_out_be1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&be1_in_fe0>;
+ };
+ };
+ };
+ };
+
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml
new file mode 100644
index 000000000000..5d4915aed1e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml
@@ -0,0 +1,183 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 HDMI Controller Device Tree Bindings
+
+description: |
+ The HDMI Encoder supports the HDMI video and audio outputs, and does
+ CEC. It is one end of the pipeline.
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ oneOf:
+ - const: allwinner,sun4i-a10-hdmi
+ - const: allwinner,sun5i-a10s-hdmi
+ - const: allwinner,sun6i-a31-hdmi
+ - items:
+ - const: allwinner,sun7i-a20-hdmi
+ - const: allwinner,sun5i-a10s-hdmi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ oneOf:
+ - items:
+ - description: The HDMI interface clock
+ - description: The HDMI module clock
+ - description: The first video PLL
+ - description: The second video PLL
+
+ - items:
+ - description: The HDMI interface clock
+ - description: The HDMI module clock
+ - description: The HDMI DDC clock
+ - description: The first video PLL
+ - description: The second video PLL
+
+ clock-names:
+ oneOf:
+ - items:
+ - const: ahb
+ - const: mod
+ - const: pll-0
+ - const: pll-1
+
+ - items:
+ - const: ahb
+ - const: mod
+ - const: ddc
+ - const: pll-0
+ - const: pll-1
+
+ resets:
+ maxItems: 1
+
+ dmas:
+ items:
+ - description: DDC Transmission DMA Channel
+ - description: DDC Reception DMA Channel
+ - description: Audio Transmission DMA Channel
+
+ dma-names:
+ items:
+ - const: ddc-tx
+ - const: ddc-rx
+ - const: audio-tx
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller. Usually an HDMI
+ connector.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - dmas
+ - dma-names
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-hdmi
+
+then:
+ properties:
+ clocks:
+ minItems: 5
+
+ clock-names:
+ minItems: 5
+
+ required:
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun4i-a10-ccu.h>
+ #include <dt-bindings/dma/sun4i-a10.h>
+ #include <dt-bindings/reset/sun4i-a10-ccu.h>
+
+ hdmi: hdmi@1c16000 {
+ compatible = "allwinner,sun4i-a10-hdmi";
+ reg = <0x01c16000 0x1000>;
+ interrupts = <58>;
+ clocks = <&ccu CLK_AHB_HDMI0>, <&ccu CLK_HDMI>,
+ <&ccu CLK_PLL_VIDEO0_2X>,
+ <&ccu CLK_PLL_VIDEO1_2X>;
+ clock-names = "ahb", "mod", "pll-0", "pll-1";
+ dmas = <&dma SUN4I_DMA_NORMAL 16>,
+ <&dma SUN4I_DMA_NORMAL 16>,
+ <&dma SUN4I_DMA_DEDICATED 24>;
+ dma-names = "ddc-tx", "ddc-rx", "audio-tx";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi_in: port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ hdmi_in_tcon0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_out_hdmi>;
+ };
+
+ hdmi_in_tcon1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon1_out_hdmi>;
+ };
+ };
+
+ hdmi_out: port@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
new file mode 100644
index 000000000000..86ad617d2327
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
@@ -0,0 +1,676 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-tcon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Timings Controller (TCON) Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ The TCON acts as a timing controller for RGB, LVDS and TV
+ interfaces.
+
+properties:
+ "#clock-cells":
+ const: 0
+
+ compatible:
+ oneOf:
+ - const: allwinner,sun4i-a10-tcon
+ - const: allwinner,sun5i-a13-tcon
+ - const: allwinner,sun6i-a31-tcon
+ - const: allwinner,sun6i-a31s-tcon
+ - const: allwinner,sun7i-a20-tcon
+ - const: allwinner,sun8i-a23-tcon
+ - const: allwinner,sun8i-a33-tcon
+ - const: allwinner,sun8i-a83t-tcon-lcd
+ - const: allwinner,sun8i-a83t-tcon-tv
+ - const: allwinner,sun8i-r40-tcon-tv
+ - const: allwinner,sun8i-v3s-tcon
+ - const: allwinner,sun9i-a80-tcon-lcd
+ - const: allwinner,sun9i-a80-tcon-tv
+
+ - items:
+ - enum:
+ - allwinner,sun50i-a64-tcon-lcd
+ - const: allwinner,sun8i-a83t-tcon-lcd
+
+ - items:
+ - enum:
+ - allwinner,sun8i-h3-tcon-tv
+ - allwinner,sun50i-a64-tcon-tv
+ - allwinner,sun50i-h6-tcon-tv
+ - const: allwinner,sun8i-a83t-tcon-tv
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+
+ clock-output-names:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/string-array
+ - maxItems: 1
+ description:
+ Name of the LCD pixel clock created.
+
+ dmas:
+ maxItems: 1
+
+ resets:
+ anyOf:
+ - items:
+ - description: TCON Reset Line
+
+ - items:
+ - description: TCON Reset Line
+ - description: TCON LVDS Reset Line
+
+ - items:
+ - description: TCON Reset Line
+ - description: TCON eDP Reset Line
+
+ - items:
+ - description: TCON Reset Line
+ - description: TCON eDP Reset Line
+ - description: TCON LVDS Reset Line
+
+ reset-names:
+ oneOf:
+ - const: lcd
+
+ - items:
+ - const: lcd
+ - const: lvds
+
+ - items:
+ - const: lcd
+ - const: edp
+
+ - items:
+ - const: lcd
+ - const: edp
+ - const: lvds
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller.
+
+ patternProperties:
+ "^endpoint(@[0-9])$":
+ type: object
+
+ properties:
+ allwinner,tcon-channel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ TCON can have 1 or 2 channels, usually with the
+ first channel being used for the panels interfaces
+ (RGB, LVDS, etc.), and the second being used for the
+ outputs that require another controller (TV Encoder,
+ HDMI, etc.).
+
+ If that property is present, specifies the TCON
+ channel the endpoint is associated to. If that
+ property is not present, the endpoint number will be
+ used as the channel number.
+
+ unevaluatedProperties: true
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun4i-a10-tcon
+ - allwinner,sun5i-a13-tcon
+ - allwinner,sun7i-a20-tcon
+
+ then:
+ properties:
+ clocks:
+ minItems: 3
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: tcon-ch0
+ - const: tcon-ch1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun6i-a31-tcon
+ - allwinner,sun6i-a31s-tcon
+
+ then:
+ properties:
+ clocks:
+ minItems: 4
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: tcon-ch0
+ - const: tcon-ch1
+ - const: lvds-alt
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun8i-a23-tcon
+ - allwinner,sun8i-a33-tcon
+
+ then:
+ properties:
+ clocks:
+ minItems: 3
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: tcon-ch0
+ - const: lvds-alt
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun8i-a83t-tcon-lcd
+ - allwinner,sun8i-v3s-tcon
+ - allwinner,sun9i-a80-tcon-lcd
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: tcon-ch0
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun8i-a83t-tcon-tv
+ - allwinner,sun8i-r40-tcon-tv
+ - allwinner,sun9i-a80-tcon-tv
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: tcon-ch1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun5i-a13-tcon
+ - allwinner,sun6i-a31-tcon
+ - allwinner,sun6i-a31s-tcon
+ - allwinner,sun7i-a20-tcon
+ - allwinner,sun8i-a23-tcon
+ - allwinner,sun8i-a33-tcon
+ - allwinner,sun8i-v3s-tcon
+ - allwinner,sun9i-a80-tcon-lcd
+ - allwinner,sun4i-a10-tcon
+ - allwinner,sun8i-a83t-tcon-lcd
+
+ then:
+ required:
+ - "#clock-cells"
+ - clock-output-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun6i-a31-tcon
+ - allwinner,sun6i-a31s-tcon
+ - allwinner,sun8i-a23-tcon
+ - allwinner,sun8i-a33-tcon
+ - allwinner,sun8i-a83t-tcon-lcd
+
+ then:
+ properties:
+ resets:
+ minItems: 2
+
+ reset-names:
+ items:
+ - const: lcd
+ - const: lvds
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun9i-a80-tcon-lcd
+
+ then:
+ properties:
+ resets:
+ minItems: 3
+
+ reset-names:
+ items:
+ - const: lcd
+ - const: edp
+ - const: lvds
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun9i-a80-tcon-tv
+
+ then:
+ properties:
+ resets:
+ minItems: 2
+
+ reset-names:
+ items:
+ - const: lcd
+ - const: edp
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun4i-a10-tcon
+ - allwinner,sun5i-a13-tcon
+ - allwinner,sun6i-a31-tcon
+ - allwinner,sun6i-a31s-tcon
+ - allwinner,sun7i-a20-tcon
+ - allwinner,sun8i-a23-tcon
+ - allwinner,sun8i-a33-tcon
+
+ then:
+ required:
+ - dmas
+
+examples:
+ - |
+ #include <dt-bindings/dma/sun4i-a10.h>
+
+ /*
+ * This comes from the clock/sun4i-a10-ccu.h and
+ * reset/sun4i-a10-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+
+ #define CLK_AHB_LCD0 56
+ #define CLK_TCON0_CH0 149
+ #define CLK_TCON0_CH1 155
+ #define RST_TCON0 11
+
+ lcd-controller@1c0c000 {
+ compatible = "allwinner,sun4i-a10-tcon";
+ reg = <0x01c0c000 0x1000>;
+ interrupts = <44>;
+ resets = <&ccu RST_TCON0>;
+ reset-names = "lcd";
+ clocks = <&ccu CLK_AHB_LCD0>,
+ <&ccu CLK_TCON0_CH0>,
+ <&ccu CLK_TCON0_CH1>;
+ clock-names = "ahb",
+ "tcon-ch0",
+ "tcon-ch1";
+ clock-output-names = "tcon0-pixel-clock";
+ #clock-cells = <0>;
+ dmas = <&dma SUN4I_DMA_DEDICATED 14>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&be0_out_tcon0>;
+ };
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&be1_out_tcon0>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&hdmi_in_tcon0>;
+ allwinner,tcon-channel = <1>;
+ };
+ };
+ };
+ };
+
+ #undef CLK_AHB_LCD0
+ #undef CLK_TCON0_CH0
+ #undef CLK_TCON0_CH1
+ #undef RST_TCON0
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ /*
+ * This comes from the clock/sun6i-a31-ccu.h and
+ * reset/sun6i-a31-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+
+ #define CLK_PLL_MIPI 15
+ #define CLK_AHB1_LCD0 47
+ #define CLK_LCD0_CH0 127
+ #define CLK_LCD0_CH1 129
+ #define RST_AHB1_LCD0 27
+ #define RST_AHB1_LVDS 41
+
+ lcd-controller@1c0c000 {
+ compatible = "allwinner,sun6i-a31-tcon";
+ reg = <0x01c0c000 0x1000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma 11>;
+ resets = <&ccu RST_AHB1_LCD0>, <&ccu RST_AHB1_LVDS>;
+ reset-names = "lcd", "lvds";
+ clocks = <&ccu CLK_AHB1_LCD0>,
+ <&ccu CLK_LCD0_CH0>,
+ <&ccu CLK_LCD0_CH1>,
+ <&ccu CLK_PLL_MIPI>;
+ clock-names = "ahb",
+ "tcon-ch0",
+ "tcon-ch1",
+ "lvds-alt";
+ clock-output-names = "tcon0-pixel-clock";
+ #clock-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&drc0_out_tcon0>;
+ };
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&drc1_out_tcon0>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&hdmi_in_tcon0>;
+ allwinner,tcon-channel = <1>;
+ };
+ };
+ };
+ };
+
+ #undef CLK_PLL_MIPI
+ #undef CLK_AHB1_LCD0
+ #undef CLK_LCD0_CH0
+ #undef CLK_LCD0_CH1
+ #undef RST_AHB1_LCD0
+ #undef RST_AHB1_LVDS
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ /*
+ * This comes from the clock/sun9i-a80-ccu.h and
+ * reset/sun9i-a80-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+
+ #define CLK_BUS_LCD0 102
+ #define CLK_LCD0 58
+ #define RST_BUS_LCD0 22
+ #define RST_BUS_EDP 24
+ #define RST_BUS_LVDS 25
+
+ lcd-controller@3c00000 {
+ compatible = "allwinner,sun9i-a80-tcon-lcd";
+ reg = <0x03c00000 0x10000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_LCD0>, <&ccu CLK_LCD0>;
+ clock-names = "ahb", "tcon-ch0";
+ resets = <&ccu RST_BUS_LCD0>, <&ccu RST_BUS_EDP>, <&ccu RST_BUS_LVDS>;
+ reset-names = "lcd", "edp", "lvds";
+ clock-output-names = "tcon0-pixel-clock";
+ #clock-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&drc0_out_tcon0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ #undef CLK_BUS_TCON0
+ #undef CLK_TCON0
+ #undef RST_BUS_TCON0
+ #undef RST_BUS_EDP
+ #undef RST_BUS_LVDS
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ /*
+ * This comes from the clock/sun8i-a83t-ccu.h and
+ * reset/sun8i-a83t-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+
+ #define CLK_BUS_TCON0 36
+ #define CLK_TCON0 85
+ #define RST_BUS_TCON0 22
+ #define RST_BUS_LVDS 31
+
+ lcd-controller@1c0c000 {
+ compatible = "allwinner,sun8i-a83t-tcon-lcd";
+ reg = <0x01c0c000 0x1000>;
+ interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_TCON0>, <&ccu CLK_TCON0>;
+ clock-names = "ahb", "tcon-ch0";
+ clock-output-names = "tcon-pixel-clock";
+ #clock-cells = <0>;
+ resets = <&ccu RST_BUS_TCON0>, <&ccu RST_BUS_LVDS>;
+ reset-names = "lcd", "lvds";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&mixer0_out_tcon0>;
+ };
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&mixer1_out_tcon0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ #undef CLK_BUS_TCON0
+ #undef CLK_TCON0
+ #undef RST_BUS_TCON0
+ #undef RST_BUS_LVDS
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ /*
+ * This comes from the clock/sun8i-r40-ccu.h and
+ * reset/sun8i-r40-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+
+ #define CLK_BUS_TCON_TV0 73
+ #define RST_BUS_TCON_TV0 49
+
+ tcon_tv0: lcd-controller@1c73000 {
+ compatible = "allwinner,sun8i-r40-tcon-tv";
+ reg = <0x01c73000 0x1000>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_TCON_TV0>, <&tcon_top 0>;
+ clock-names = "ahb", "tcon-ch1";
+ resets = <&ccu RST_BUS_TCON_TV0>;
+ reset-names = "lcd";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon_top_mixer0_out_tcon_tv0>;
+ };
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon_top_mixer1_out_tcon_tv0>;
+ };
+ };
+
+ tcon_tv0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon_top_hdmi_in_tcon_tv0>;
+ };
+ };
+ };
+ };
+
+ #undef CLK_BUS_TCON_TV0
+ #undef RST_BUS_TCON_TV0
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml
new file mode 100644
index 000000000000..5d5d39665119
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-tv-encoder.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 TV Encoder Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ const: allwinner,sun4i-a10-tv-encoder
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ port:
+ type: object
+ description:
+ A port node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt. The
+ first port should be the input endpoint, usually coming from the
+ associated TCON.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ tve0: tv-encoder@1c0a000 {
+ compatible = "allwinner,sun4i-a10-tv-encoder";
+ reg = <0x01c0a000 0x1000>;
+ clocks = <&ahb_gates 34>;
+ resets = <&tcon_ch0_clk 0>;
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tve0_in_tcon0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_out_tve0>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
new file mode 100644
index 000000000000..0c1ce55940e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
@@ -0,0 +1,138 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun6i-a31-drc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 Dynamic Range Controller Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ The DRC (Dynamic Range Controller) allows to dynamically adjust
+ pixel brightness/contrast based on histogram measurements for LCD
+ content adaptive backlight control.
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun6i-a31-drc
+ - allwinner,sun6i-a31s-drc
+ - allwinner,sun8i-a23-drc
+ - allwinner,sun8i-a33-drc
+ - allwinner,sun9i-a80-drc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: The DRC interface clock
+ - description: The DRC module clock
+ - description: The DRC DRAM clock
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: mod
+ - const: ram
+
+ resets:
+ maxItems: 1
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ #include <dt-bindings/clock/sun6i-a31-ccu.h>
+ #include <dt-bindings/reset/sun6i-a31-ccu.h>
+
+ drc0: drc@1e70000 {
+ compatible = "allwinner,sun6i-a31-drc";
+ reg = <0x01e70000 0x10000>;
+ interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_AHB1_DRC0>, <&ccu CLK_IEP_DRC0>,
+ <&ccu CLK_DRAM_DRC0>;
+ clock-names = "ahb", "mod",
+ "ram";
+ resets = <&ccu RST_AHB1_DRC0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ drc0_in: port@0 {
+ reg = <0>;
+
+ drc0_in_be0: endpoint {
+ remote-endpoint = <&be0_out_drc0>;
+ };
+ };
+
+ drc0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ drc0_out_tcon0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_in_drc0>;
+ };
+
+ drc0_out_tcon1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon1_in_drc0>;
+ };
+ };
+ };
+ };
+
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
index 0f7074977c04..9e90c2b00960 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
@@ -15,7 +15,9 @@ properties:
"#size-cells": true
compatible:
- const: allwinner,sun6i-a31-mipi-dsi
+ enum:
+ - allwinner,sun6i-a31-mipi-dsi
+ - allwinner,sun50i-a64-mipi-dsi
reg:
maxItems: 1
@@ -24,6 +26,8 @@ properties:
maxItems: 1
clocks:
+ minItems: 1
+ maxItems: 2
items:
- description: Bus Clock
- description: Module Clock
@@ -63,13 +67,38 @@ required:
- reg
- interrupts
- clocks
- - clock-names
- phys
- phy-names
- resets
- vcc-dsi-supply
- port
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-mipi-dsi
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+
+ required:
+ - clock-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun50i-a64-mipi-dsi
+
+ then:
+ properties:
+ clocks:
+ minItems: 1
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
new file mode 100644
index 000000000000..1dee641e3ea1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun8i-a83t-de2-mixer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner Display Engine 2.0 Mixer Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun8i-a83t-de2-mixer-0
+ - allwinner,sun8i-a83t-de2-mixer-1
+ - allwinner,sun8i-h3-de2-mixer-0
+ - allwinner,sun8i-r40-de2-mixer-0
+ - allwinner,sun8i-r40-de2-mixer-1
+ - allwinner,sun8i-v3s-de2-mixer
+ - allwinner,sun50i-a64-de2-mixer-0
+ - allwinner,sun50i-a64-de2-mixer-1
+ - allwinner,sun50i-h6-de3-mixer-0
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: The mixer interface clock
+ - description: The mixer module clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: mod
+
+ resets:
+ maxItems: 1
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun8i-de2.h>
+ #include <dt-bindings/reset/sun8i-de2.h>
+
+ mixer0: mixer@1100000 {
+ compatible = "allwinner,sun8i-a83t-de2-mixer-0";
+ reg = <0x01100000 0x100000>;
+ clocks = <&display_clocks CLK_BUS_MIXER0>,
+ <&display_clocks CLK_MIXER0>;
+ clock-names = "bus",
+ "mod";
+ resets = <&display_clocks RST_MIXER0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mixer0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ mixer0_out_tcon0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon0_in_mixer0>;
+ };
+
+ mixer0_out_tcon1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon1_in_mixer0>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
new file mode 100644
index 000000000000..4d6795690ac3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
@@ -0,0 +1,273 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun8i-a83t-dw-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A83t DWC HDMI TX Encoder Device Tree Bindings
+
+description: |
+ The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller
+ IP with Allwinner\'s own PHY IP. It supports audio and video outputs
+ and CEC.
+
+ These DT bindings follow the Synopsys DWC HDMI TX bindings defined
+ in Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with
+ the following device-specific properties.
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 0
+
+ compatible:
+ oneOf:
+ - const: allwinner,sun8i-a83t-dw-hdmi
+ - const: allwinner,sun50i-h6-dw-hdmi
+
+ - items:
+ - enum:
+ - allwinner,sun8i-h3-dw-hdmi
+ - allwinner,sun8i-r40-dw-hdmi
+ - allwinner,sun50i-a64-dw-hdmi
+ - const: allwinner,sun8i-a83t-dw-hdmi
+
+ reg:
+ maxItems: 1
+
+ reg-io-width:
+ const: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 3
+ maxItems: 6
+ items:
+ - description: Bus Clock
+ - description: Register Clock
+ - description: TMDS Clock
+ - description: HDMI CEC Clock
+ - description: HDCP Clock
+ - description: HDCP Bus Clock
+
+ clock-names:
+ minItems: 3
+ maxItems: 6
+ items:
+ - const: iahb
+ - const: isfr
+ - const: tmds
+ - const: cec
+ - const: hdcp
+ - const: hdcp-bus
+
+ resets:
+ minItems: 1
+ maxItems: 2
+ items:
+ - description: HDMI Controller Reset
+ - description: HDCP Reset
+
+ reset-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ - const: ctrl
+ - const: hdcp
+
+ phys:
+ maxItems: 1
+ description:
+ Phandle to the DWC HDMI PHY.
+
+ phy-names:
+ const: phy
+
+ hvcc-supply:
+ description:
+ The VCC power supply of the controller
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller. Usually the associated
+ TCON.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller. Usually an HDMI
+ connector.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - reg-io-width
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - phys
+ - phy-names
+ - ports
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun50i-h6-dw-hdmi
+
+then:
+ properties:
+ clocks:
+ minItems: 6
+
+ clock-names:
+ minItems: 6
+
+ resets:
+ minItems: 2
+
+ reset-names:
+ minItems: 2
+
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ /*
+ * This comes from the clock/sun8i-a83t-ccu.h and
+ * reset/sun8i-a83t-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+ #define CLK_BUS_HDMI 39
+ #define CLK_HDMI 93
+ #define CLK_HDMI_SLOW 94
+ #define RST_BUS_HDMI1 26
+
+ hdmi@1ee0000 {
+ compatible = "allwinner,sun8i-a83t-dw-hdmi";
+ reg = <0x01ee0000 0x10000>;
+ reg-io-width = <1>;
+ interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_HDMI>, <&ccu CLK_HDMI_SLOW>,
+ <&ccu CLK_HDMI>;
+ clock-names = "iahb", "isfr", "tmds";
+ resets = <&ccu RST_BUS_HDMI1>;
+ reset-names = "ctrl";
+ phys = <&hdmi_phy>;
+ phy-names = "phy";
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_pins>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&tcon1_out_hdmi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+ /* Cleanup after ourselves */
+ #undef CLK_BUS_HDMI
+ #undef CLK_HDMI
+ #undef CLK_HDMI_SLOW
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ /*
+ * This comes from the clock/sun50i-h6-ccu.h and
+ * reset/sun50i-h6-ccu.h headers, but we can't include them since
+ * it would trigger a bunch of warnings for redefinitions of
+ * symbols with the other example.
+ */
+ #define CLK_BUS_HDMI 126
+ #define CLK_BUS_HDCP 137
+ #define CLK_HDMI 123
+ #define CLK_HDMI_SLOW 124
+ #define CLK_HDMI_CEC 125
+ #define CLK_HDCP 136
+ #define RST_BUS_HDMI_SUB 57
+ #define RST_BUS_HDCP 62
+
+ hdmi@6000000 {
+ compatible = "allwinner,sun50i-h6-dw-hdmi";
+ reg = <0x06000000 0x10000>;
+ reg-io-width = <1>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_HDMI>, <&ccu CLK_HDMI_SLOW>,
+ <&ccu CLK_HDMI>, <&ccu CLK_HDMI_CEC>,
+ <&ccu CLK_HDCP>, <&ccu CLK_BUS_HDCP>;
+ clock-names = "iahb", "isfr", "tmds", "cec", "hdcp",
+ "hdcp-bus";
+ resets = <&ccu RST_BUS_HDMI_SUB>, <&ccu RST_BUS_HDCP>;
+ reset-names = "ctrl", "hdcp";
+ phys = <&hdmi_phy>;
+ phy-names = "phy";
+ pinctrl-names = "default";
+ pinctrl-0 = <&hdmi_pins>;
+ status = "disabled";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ endpoint {
+ remote-endpoint = <&tcon_top_hdmi_out_hdmi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-hdmi-phy.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-hdmi-phy.yaml
new file mode 100644
index 000000000000..501cec16168c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-hdmi-phy.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun8i-a83t-hdmi-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A83t HDMI PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 0
+
+ compatible:
+ enum:
+ - allwinner,sun8i-a83t-hdmi-phy
+ - allwinner,sun8i-h3-hdmi-phy
+ - allwinner,sun8i-r40-hdmi-phy
+ - allwinner,sun50i-a64-hdmi-phy
+ - allwinner,sun50i-h6-hdmi-phy
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 4
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+ - description: Parent of the PHY clock
+ - description: Second possible parent of the PHY clock
+
+ clock-names:
+ minItems: 2
+ maxItems: 4
+ items:
+ - const: bus
+ - const: mod
+ - const: pll-0
+ - const: pll-1
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: phy
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun8i-r40-hdmi-phy
+
+then:
+ properties:
+ clocks:
+ minItems: 4
+
+ clock-names:
+ minItems: 4
+
+else:
+ if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun8i-h3-hdmi-phy
+ - allwinner,sun50i-a64-hdmi-phy
+
+ then:
+ properties:
+ clocks:
+ minItems: 3
+
+ clock-names:
+ minItems: 3
+
+ else:
+ properties:
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ maxItems: 2
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun8i-a83t-ccu.h>
+ #include <dt-bindings/reset/sun8i-a83t-ccu.h>
+
+ hdmi_phy: hdmi-phy@1ef0000 {
+ compatible = "allwinner,sun8i-a83t-hdmi-phy";
+ reg = <0x01ef0000 0x10000>;
+ clocks = <&ccu CLK_BUS_HDMI>, <&ccu CLK_HDMI_SLOW>;
+ clock-names = "bus", "mod";
+ resets = <&ccu RST_BUS_HDMI0>;
+ reset-names = "phy";
+ #phy-cells = <0>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-r40-tcon-top.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-r40-tcon-top.yaml
new file mode 100644
index 000000000000..b98ca609824b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-r40-tcon-top.yaml
@@ -0,0 +1,382 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun8i-r40-tcon-top.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner R40 TCON TOP Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ TCON TOPs main purpose is to configure whole display pipeline. It
+ determines relationships between mixers and TCONs, selects source
+ TCON for HDMI, muxes LCD and TV encoder GPIO output, selects TV
+ encoder clock source and contains additional TV TCON and DSI gates.
+
+ It allows display pipeline to be configured in very different ways:
+
+ / LCD0/LVDS0
+ / [0] TCON-LCD0
+ | \ MIPI DSI
+ mixer0 |
+ \ / [1] TCON-LCD1 - LCD1/LVDS1
+ TCON-TOP
+ / \ [2] TCON-TV0 [0] - TVE0/RGB
+ mixer1 | \
+ | TCON-TOP - HDMI
+ | /
+ \ [3] TCON-TV1 [1] - TVE1/RGB
+
+ Note that both TCON TOP references same physical unit. Both mixers
+ can be connected to any TCON. Not all TCON TOP variants support all
+ features.
+
+properties:
+ "#clock-cells":
+ const: 1
+
+ compatible:
+ enum:
+ - allwinner,sun8i-r40-tcon-top
+ - allwinner,sun50i-h6-tcon-top
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 6
+ items:
+ - description: The TCON TOP interface clock
+ - description: The TCON TOP TV0 clock
+ - description: The TCON TOP TVE0 clock
+ - description: The TCON TOP TV1 clock
+ - description: The TCON TOP TVE1 clock
+ - description: The TCON TOP MIPI DSI clock
+
+ clock-names:
+ minItems: 2
+ maxItems: 6
+ items:
+ - const: bus
+ - const: tcon-tv0
+ - const: tve0
+ - const: tcon-tv1
+ - const: tve1
+ - const: dsi
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 3
+ description: >
+ The first item is the name of the clock created for the TV0
+ channel, the second item is the name of the TCON TV1 channel
+ clock and the third one is the name of the DSI channel clock.
+
+ resets:
+ maxItems: 1
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+ All ports should have only one endpoint connected to
+ remote endpoint.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoint for Mixer 0 mux.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoint for Mixer 0 mux
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ reg: true
+
+ patternProperties:
+ "^endpoint@[0-9]$":
+ type: object
+
+ properties:
+ reg:
+ description: |
+ ID of the target TCON
+
+ required:
+ - reg
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+
+ additionalProperties: false
+
+ port@2:
+ type: object
+ description: |
+ Input endpoint for Mixer 1 mux.
+
+ port@3:
+ type: object
+ description: |
+ Output endpoint for Mixer 1 mux
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ reg: true
+
+ patternProperties:
+ "^endpoint@[0-9]$":
+ type: object
+
+ properties:
+ reg:
+ description: |
+ ID of the target TCON
+
+ required:
+ - reg
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+
+ additionalProperties: false
+
+ port@4:
+ type: object
+ description: |
+ Input endpoint for HDMI mux.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ reg: true
+
+ patternProperties:
+ "^endpoint@[0-9]$":
+ type: object
+
+ properties:
+ reg:
+ description: |
+ ID of the target TCON
+
+ required:
+ - reg
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+
+ additionalProperties: false
+
+ port@5:
+ type: object
+ description: |
+ Output endpoint for HDMI mux
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@1
+ - port@4
+ - port@5
+
+ additionalProperties: false
+
+required:
+ - "#clock-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - clock-output-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun50i-h6-tcon-top
+
+then:
+ properties:
+ clocks:
+ maxItems: 2
+
+ clock-output-names:
+ maxItems: 1
+
+else:
+ properties:
+ clocks:
+ minItems: 6
+
+ clock-output-names:
+ minItems: 3
+
+ ports:
+ required:
+ - port@2
+ - port@3
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ #include <dt-bindings/clock/sun8i-r40-ccu.h>
+ #include <dt-bindings/reset/sun8i-r40-ccu.h>
+
+ tcon_top: tcon-top@1c70000 {
+ compatible = "allwinner,sun8i-r40-tcon-top";
+ reg = <0x01c70000 0x1000>;
+ clocks = <&ccu CLK_BUS_TCON_TOP>,
+ <&ccu CLK_TCON_TV0>,
+ <&ccu CLK_TVE0>,
+ <&ccu CLK_TCON_TV1>,
+ <&ccu CLK_TVE1>,
+ <&ccu CLK_DSI_DPHY>;
+ clock-names = "bus",
+ "tcon-tv0",
+ "tve0",
+ "tcon-tv1",
+ "tve1",
+ "dsi";
+ clock-output-names = "tcon-top-tv0",
+ "tcon-top-tv1",
+ "tcon-top-dsi";
+ resets = <&ccu RST_BUS_TCON_TOP>;
+ #clock-cells = <1>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tcon_top_mixer0_in: port@0 {
+ reg = <0>;
+
+ tcon_top_mixer0_in_mixer0: endpoint {
+ remote-endpoint = <&mixer0_out_tcon_top>;
+ };
+ };
+
+ tcon_top_mixer0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ tcon_top_mixer0_out_tcon_lcd0: endpoint@0 {
+ reg = <0>;
+ };
+
+ tcon_top_mixer0_out_tcon_lcd1: endpoint@1 {
+ reg = <1>;
+ };
+
+ tcon_top_mixer0_out_tcon_tv0: endpoint@2 {
+ reg = <2>;
+ remote-endpoint = <&tcon_tv0_in_tcon_top_mixer0>;
+ };
+
+ tcon_top_mixer0_out_tcon_tv1: endpoint@3 {
+ reg = <3>;
+ remote-endpoint = <&tcon_tv1_in_tcon_top_mixer0>;
+ };
+ };
+
+ tcon_top_mixer1_in: port@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+
+ tcon_top_mixer1_in_mixer1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&mixer1_out_tcon_top>;
+ };
+ };
+
+ tcon_top_mixer1_out: port@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+
+ tcon_top_mixer1_out_tcon_lcd0: endpoint@0 {
+ reg = <0>;
+ };
+
+ tcon_top_mixer1_out_tcon_lcd1: endpoint@1 {
+ reg = <1>;
+ };
+
+ tcon_top_mixer1_out_tcon_tv0: endpoint@2 {
+ reg = <2>;
+ remote-endpoint = <&tcon_tv0_in_tcon_top_mixer1>;
+ };
+
+ tcon_top_mixer1_out_tcon_tv1: endpoint@3 {
+ reg = <3>;
+ remote-endpoint = <&tcon_tv1_in_tcon_top_mixer1>;
+ };
+ };
+
+ tcon_top_hdmi_in: port@4 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <4>;
+
+ tcon_top_hdmi_in_tcon_tv0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&tcon_tv0_out_tcon_top>;
+ };
+
+ tcon_top_hdmi_in_tcon_tv1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&tcon_tv1_out_tcon_top>;
+ };
+ };
+
+ tcon_top_hdmi_out: port@5 {
+ reg = <5>;
+
+ tcon_top_hdmi_out_hdmi: endpoint {
+ remote-endpoint = <&hdmi_in_tcon_top>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml b/Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml
new file mode 100644
index 000000000000..96de41d32b3e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml
@@ -0,0 +1,133 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/allwinner,sun9i-a80-deu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 Detail Enhancement Unit Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ The DEU (Detail Enhancement Unit), found in the Allwinner A80 SoC,
+ can sharpen the display content in both luma and chroma channels.
+
+properties:
+ compatible:
+ const: allwinner,sun9i-a80-deu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: The DEU interface clock
+ - description: The DEU module clock
+ - description: The DEU DRAM clock
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: mod
+ - const: ram
+
+ resets:
+ maxItems: 1
+
+ ports:
+ type: object
+ description: |
+ A ports node with endpoint definitions as defined in
+ Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ port@0:
+ type: object
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ type: object
+ description: |
+ Output endpoints of the controller.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ #include <dt-bindings/clock/sun9i-a80-de.h>
+ #include <dt-bindings/reset/sun9i-a80-de.h>
+
+ deu0: deu@3300000 {
+ compatible = "allwinner,sun9i-a80-deu";
+ reg = <0x03300000 0x40000>;
+ interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&de_clocks CLK_BUS_DEU0>,
+ <&de_clocks CLK_IEP_DEU0>,
+ <&de_clocks CLK_DRAM_DEU0>;
+ clock-names = "ahb",
+ "mod",
+ "ram";
+ resets = <&de_clocks RST_DEU0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ deu0_in: port@0 {
+ reg = <0>;
+
+ deu0_in_fe0: endpoint {
+ remote-endpoint = <&fe0_out_deu0>;
+ };
+ };
+
+ deu0_out: port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ deu0_out_be0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&be0_in_deu0>;
+ };
+
+ deu0_out_be1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&be1_in_deu0>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
new file mode 100644
index 000000000000..8f373029f5d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/lvds-codec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Transparent LVDS encoders and decoders
+
+maintainers:
+ - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
+
+description: |
+ This binding supports transparent LVDS encoders and decoders that don't
+ require any configuration.
+
+ LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
+ incompatible data link layers have been used over time to transmit image data
+ to LVDS panels. This binding targets devices compatible with the following
+ specifications only.
+
+ [JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
+ 1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
+ [LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
+ Semiconductor
+ [VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
+ Electronics Standards Association (VESA)
+
+ Those devices have been marketed under the FPD-Link and FlatLink brand names
+ among others.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - ti,ds90c185 # For the TI DS90C185 FPD-Link Serializer
+ - ti,ds90c187 # For the TI DS90C187 FPD-Link Serializer
+ - ti,sn75lvds83 # For the TI SN75LVDS83 FlatLink transmitter
+ - const: lvds-encoder # Generic LVDS encoder compatible fallback
+ - items:
+ - enum:
+ - ti,ds90cf384a # For the DS90CF384A FPD-Link LVDS Receiver
+ - const: lvds-decoder # Generic LVDS decoders compatible fallback
+ - enum:
+ - thine,thc63lvdm83d # For the THC63LVDM83D LVDS serializer
+
+ ports:
+ type: object
+ description: |
+ This device has two video ports. Their connections are modeled using the
+ OF graph bindings specified in Documentation/devicetree/bindings/graph.txt
+ properties:
+ port@0:
+ type: object
+ description: |
+ For LVDS encoders, port 0 is the parallel input
+ For LVDS decoders, port 0 is the LVDS input
+
+ port@1:
+ type: object
+ description: |
+ For LVDS encoders, port 1 is the LVDS output
+ For LVDS decoders, port 1 is the parallel output
+
+ required:
+ - port@0
+ - port@1
+
+ powerdown-gpios:
+ description:
+ The GPIO used to control the power down line of this device.
+ maxItems: 1
+
+required:
+ - compatible
+ - ports
+
+examples:
+ - |
+ lvds-encoder {
+ compatible = "ti,ds90c185", "lvds-encoder";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lvds_enc_in: endpoint {
+ remote-endpoint = <&display_out_rgb>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lvds_enc_out: endpoint {
+ remote-endpoint = <&lvds_panel_in>;
+ };
+ };
+ };
+ };
+
+ - |
+ lvds-decoder {
+ compatible = "ti,ds90cf384a", "lvds-decoder";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ lvds_dec_in: endpoint {
+ remote-endpoint = <&display_out_lvds>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ lvds_dec_out: endpoint {
+ remote-endpoint = <&rgb_panel_in>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt b/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt
deleted file mode 100644
index 60091db5dfa5..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-Parallel to LVDS Encoder
-------------------------
-
-This binding supports the parallel to LVDS encoders that don't require any
-configuration.
-
-LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
-incompatible data link layers have been used over time to transmit image data
-to LVDS panels. This binding targets devices compatible with the following
-specifications only.
-
-[JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
-1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
-[LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
-Semiconductor
-[VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
-Electronics Standards Association (VESA)
-
-Those devices have been marketed under the FPD-Link and FlatLink brand names
-among others.
-
-
-Required properties:
-
-- compatible: Must be "lvds-encoder"
-
- Any encoder compatible with this generic binding, but with additional
- properties not listed here, must list a device specific compatible first
- followed by this generic compatible.
-
-Required nodes:
-
-This device has two video ports. Their connections are modeled using the OF
-graph bindings specified in Documentation/devicetree/bindings/graph.txt.
-
-- Video port 0 for parallel input
-- Video port 1 for LVDS output
-
-
-Example
--------
-
-lvds-encoder {
- compatible = "lvds-encoder";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
-
- lvds_enc_in: endpoint {
- remote-endpoint = <&display_out_rgb>;
- };
- };
-
- port@1 {
- reg = <1>;
-
- lvds_enc_out: endpoint {
- remote-endpoint = <&lvds_panel_in>;
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/bridge/thine,thc63lvdm83d.txt b/Documentation/devicetree/bindings/display/bridge/thine,thc63lvdm83d.txt
deleted file mode 100644
index fee3c88e1a17..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/thine,thc63lvdm83d.txt
+++ /dev/null
@@ -1,50 +0,0 @@
-THine Electronics THC63LVDM83D LVDS serializer
-----------------------------------------------
-
-The THC63LVDM83D is an LVDS serializer designed to support pixel data
-transmission between a host and a flat panel.
-
-Required properties:
-
-- compatible: Should be "thine,thc63lvdm83d"
-
-Optional properties:
-
-- powerdown-gpios: Power down control GPIO (the /PWDN pin, active low).
-
-Required nodes:
-
-The THC63LVDM83D has two video ports. Their connections are modeled using the
-OFgraph bindings specified in Documentation/devicetree/bindings/graph.txt.
-
-- Video port 0 for CMOS/TTL input
-- Video port 1 for LVDS output
-
-
-Example
--------
-
- lvds_enc: encoder@0 {
- compatible = "thine,thc63lvdm83d";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
-
- lvds_enc_in: endpoint@0 {
- remote-endpoint = <&rgb_out>;
- };
- };
-
- port@1 {
- reg = <1>;
-
- lvds_enc_out: endpoint@0 {
- remote-endpoint = <&panel_in>;
- };
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,ds90c185.txt b/Documentation/devicetree/bindings/display/bridge/ti,ds90c185.txt
deleted file mode 100644
index e575f996959a..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/ti,ds90c185.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-Texas Instruments FPD-Link (LVDS) Serializer
---------------------------------------------
-
-The DS90C185 and DS90C187 are low-power serializers for portable
-battery-powered applications that reduces the size of the RGB
-interface between the host GPU and the display.
-
-Required properties:
-
-- compatible: Should be
- "ti,ds90c185", "lvds-encoder" for the TI DS90C185 FPD-Link Serializer
- "ti,ds90c187", "lvds-encoder" for the TI DS90C187 FPD-Link Serializer
-
-Optional properties:
-
-- powerdown-gpios: Power down control GPIO (the PDB pin, active-low)
-
-Required nodes:
-
-The devices have two video ports. Their connections are modeled using the OF
-graph bindings specified in Documentation/devicetree/bindings/graph.txt.
-
-- Video port 0 for parallel input
-- Video port 1 for LVDS output
-
-
-Example
--------
-
-lvds-encoder {
- compatible = "ti,ds90c185", "lvds-encoder";
-
- powerdown-gpios = <&gpio 17 GPIO_ACTIVE_LOW>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
-
- lvds_enc_in: endpoint {
- remote-endpoint = <&lcdc_out_rgb>;
- };
- };
-
- port@1 {
- reg = <1>;
-
- lvds_enc_out: endpoint {
- remote-endpoint = <&lvds_panel_in>;
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/dsi-controller.yaml b/Documentation/devicetree/bindings/display/dsi-controller.yaml
new file mode 100644
index 000000000000..fd986c36c737
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/dsi-controller.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/dsi-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common Properties for DSI Display Panels
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+ This document defines device tree properties common to DSI, Display
+ Serial Interface controllers and attached panels. It doesn't constitute
+ a device tree binding specification by itself but is meant to be referenced
+ by device tree bindings.
+
+ When referenced from panel device tree bindings the properties defined in
+ this document are defined as follows. The panel device tree bindings are
+ responsible for defining whether each property is required or optional.
+
+ Notice: this binding concerns DSI panels connected directly to a master
+ without any intermediate port graph to the panel. Each DSI master
+ can control one to four virtual channels to one panel. Each virtual
+ channel should have a node "panel" for their virtual channel with their
+ reg-property set to the virtual channel number, usually there is just
+ one virtual channel, number 0.
+
+properties:
+ $nodename:
+ pattern: "^dsi-controller(@.*)?$"
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^panel@[0-3]$":
+ description: Panels connected to the DSI link
+ type: object
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 3
+ description:
+ The virtual channel number of a DSI peripheral. Must be in the range
+ from 0 to 3, as DSI uses a 2-bit addressing scheme. Some DSI
+ peripherals respond to more than a single virtual channel. In that
+ case the reg property can take multiple entries, one for each virtual
+ channel that the peripheral responds to.
+
+ clock-master:
+ type: boolean
+ description:
+ Should be enabled if the host is being used in conjunction with
+ another DSI host to drive the same peripheral. Hardware supporting
+ such a configuration generally requires the data on both the busses
+ to be driven by the same clock. Only the DSI host instance
+ controlling this clock should contain this property.
+
+ enforce-video-mode:
+ type: boolean
+ description:
+ The best option is usually to run a panel in command mode, as this
+ gives better control over the panel hardware. However for different
+ reasons like broken hardware, missing features or testing, it may be
+ useful to be able to force a command mode-capable panel into video
+ mode.
+
+ required:
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ dsi-controller@a0351000 {
+ reg = <0xa0351000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "sony,acx424akp";
+ reg = <0>;
+ vddi-supply = <&ab8500_ldo_aux1_reg>;
+ reset-gpios = <&gpio2 1 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/ingenic,lcd.txt b/Documentation/devicetree/bindings/display/ingenic,lcd.txt
index 7b536c8c6dde..01e3261defb6 100644
--- a/Documentation/devicetree/bindings/display/ingenic,lcd.txt
+++ b/Documentation/devicetree/bindings/display/ingenic,lcd.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: one of:
* ingenic,jz4740-lcd
* ingenic,jz4725b-lcd
+ * ingenic,jz4770-lcd
- reg: LCD registers location and length
- clocks: LCD pixclock and device clock specifiers.
The device clock is only required on the JZ4740.
diff --git a/Documentation/devicetree/bindings/display/msm/dpu.txt b/Documentation/devicetree/bindings/display/msm/dpu.txt
index a61dd40f3792..551ae26f60da 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu.txt
+++ b/Documentation/devicetree/bindings/display/msm/dpu.txt
@@ -8,7 +8,7 @@ The DPU display controller is found in SDM845 SoC.
MDSS:
Required properties:
-- compatible: "qcom,sdm845-mdss"
+- compatible: "qcom,sdm845-mdss", "qcom,sc7180-mdss"
- reg: physical base address and length of contoller's registers.
- reg-names: register region names. The following region is required:
* "mdss"
@@ -41,7 +41,7 @@ Optional properties:
MDP:
Required properties:
-- compatible: "qcom,sdm845-dpu"
+- compatible: "qcom,sdm845-dpu", "qcom,sc7180-dpu"
- reg: physical base address and length of controller's registers.
- reg-names : register region names. The following region is required:
* "mdp"
diff --git a/Documentation/devicetree/bindings/display/msm/gpu.txt b/Documentation/devicetree/bindings/display/msm/gpu.txt
index 2b8fd26c43b0..7edc298a15f2 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.txt
+++ b/Documentation/devicetree/bindings/display/msm/gpu.txt
@@ -23,13 +23,18 @@ Required properties:
- iommus: optional phandle to an adreno iommu instance
- operating-points-v2: optional phandle to the OPP operating points
- interconnects: optional phandle to an interconnect provider. See
- ../interconnect/interconnect.txt for details.
+ ../interconnect/interconnect.txt for details. Some A3xx and all A4xx platforms
+ will have two paths; all others will have one path.
+- interconnect-names: The names of the interconnect paths that correspond to the
+ interconnects property. Values must be gfx-mem and ocmem.
- qcom,gmu: For GMU attached devices a phandle to the GMU device that will
control the power for the GPU. Applicable targets:
- qcom,adreno-630.2
- zap-shader: For a5xx and a6xx devices this node contains a memory-region that
points to reserved memory to store the zap shader that can be used to help
bring the GPU out of secure mode.
+- firmware-name: optional property of the 'zap-shader' node, listing the
+ relative path of the device specific zap firmware.
Example 3xx/4xx/a5xx:
@@ -76,11 +81,13 @@ Example a6xx (with GMU):
operating-points-v2 = <&gpu_opp_table>;
interconnects = <&rsc_hlos MASTER_GFX3D &rsc_hlos SLAVE_EBI1>;
+ interconnect-names = "gfx-mem";
qcom,gmu = <&gmu>;
zap-shader {
memory-region = <&zap_shader_region>;
+ firmware-name = "qcom/LENOVO/81JL/qcdxkmsuc850.mbn"
};
};
};
diff --git a/Documentation/devicetree/bindings/display/panel/ampire,am-480272h3tmqw-t01h.yaml b/Documentation/devicetree/bindings/display/panel/ampire,am-480272h3tmqw-t01h.yaml
deleted file mode 100644
index c6e33e7f36d0..000000000000
--- a/Documentation/devicetree/bindings/display/panel/ampire,am-480272h3tmqw-t01h.yaml
+++ /dev/null
@@ -1,42 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/display/panel/ampire,am-480272h3tmqw-t01h.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Ampire AM-480272H3TMQW-T01H 4.3" WQVGA TFT LCD panel
-
-maintainers:
- - Yannick Fertre <yannick.fertre@st.com>
- - Thierry Reding <treding@nvidia.com>
-
-allOf:
- - $ref: panel-common.yaml#
-
-properties:
- compatible:
- const: ampire,am-480272h3tmqw-t01h
-
- power-supply: true
- enable-gpios: true
- backlight: true
- port: true
-
-required:
- - compatible
-
-additionalProperties: false
-
-examples:
- - |
- panel_rgb: panel {
- compatible = "ampire,am-480272h3tmqw-t01h";
- enable-gpios = <&gpioa 8 1>;
- port {
- panel_in_rgb: endpoint {
- remote-endpoint = <&controller_out_rgb>;
- };
- };
- };
-
-...
diff --git a/Documentation/devicetree/bindings/display/panel/ampire,am800480r3tmqwa1h.txt b/Documentation/devicetree/bindings/display/panel/ampire,am800480r3tmqwa1h.txt
deleted file mode 100644
index 83e2cae1cc1b..000000000000
--- a/Documentation/devicetree/bindings/display/panel/ampire,am800480r3tmqwa1h.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-Ampire AM-800480R3TMQW-A1H 7.0" WVGA TFT LCD panel
-
-Required properties:
-- compatible: should be "ampire,am800480r3tmqwa1h"
-
-This binding is compatible with the simple-panel binding, which is specified
-in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/display/panel/giantplus,gpm940b0.txt b/Documentation/devicetree/bindings/display/panel/giantplus,gpm940b0.txt
deleted file mode 100644
index 3dab52f92c26..000000000000
--- a/Documentation/devicetree/bindings/display/panel/giantplus,gpm940b0.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-GiantPlus 3.0" (320x240 pixels) 24-bit TFT LCD panel
-
-Required properties:
-- compatible: should be "giantplus,gpm940b0"
-- power-supply: as specified in the base binding
-
-Optional properties:
-- backlight: as specified in the base binding
-- enable-gpios: as specified in the base binding
-
-This binding is compatible with the simple-panel binding, which is specified
-in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml
new file mode 100644
index 000000000000..4ebcea7d0c63
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk500hd1829.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/leadtek,ltk500hd1829.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Leadtek LTK500HD1829 5.0in 720x1280 DSI panel
+
+maintainers:
+ - Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: leadtek,ltk500hd1829
+ reg: true
+ backlight: true
+ reset-gpios: true
+ iovcc-supply:
+ description: regulator that supplies the iovcc voltage
+ vcc-supply:
+ description: regulator that supplies the vcc voltage
+
+required:
+ - compatible
+ - reg
+ - backlight
+ - iovcc-supply
+ - vcc-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ dsi@ff450000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "leadtek,ltk500hd1829";
+ reg = <0>;
+ backlight = <&backlight>;
+ iovcc-supply = <&vcc_1v8>;
+ vcc-supply = <&vcc_2v8>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/logicpd,type28.yaml b/Documentation/devicetree/bindings/display/panel/logicpd,type28.yaml
new file mode 100644
index 000000000000..2834287b8d88
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/logicpd,type28.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/logicpd,type28.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Logic PD Type 28 4.3" WQVGA TFT LCD panel
+
+maintainers:
+ - Adam Ford <aford173@gmail.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: logicpd,type28
+
+ power-supply: true
+ enable-gpios: true
+ backlight: true
+ port: true
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ lcd0: display {
+ compatible = "logicpd,type28";
+ enable-gpios = <&gpio5 27 0>;
+ backlight = <&backlight>;
+ port {
+ lcd_in: endpoint {
+ remote-endpoint = <&dpi_out>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
new file mode 100644
index 000000000000..8fe60ee2531c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/panel-simple.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Simple panels with one power supply
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Sam Ravnborg <sam@ravnborg.org>
+
+description: |
+ This binding file is a collection of the simple (dumb) panels that
+ requires only a single power-supply.
+ There are optionally a backlight and an enable GPIO.
+ The panel may use an OF graph binding for the association to the display,
+ or it may be a direct child node of the display.
+
+ If the panel is more advanced a dedicated binding file is required.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+
+ compatible:
+ enum:
+ # compatible must be listed in alphabetical order, ordered by compatible.
+ # The description in the comment is mandatory for each compatible.
+
+ # Ampire AM-480272H3TMQW-T01H 4.3" WQVGA TFT LCD panel
+ - ampire,am-480272h3tmqw-t01h
+ # Ampire AM-800480R3TMQW-A1H 7.0" WVGA TFT LCD panel
+ - ampire,am800480r3tmqwa1h
+ # AUO B116XAK01 eDP TFT LCD panel
+ - auo,b116xa01
+ # BOE NV140FHM-N49 14.0" FHD a-Si FT panel
+ - boe,nv140fhmn49
+ # GiantPlus GPM940B0 3.0" QVGA TFT LCD panel
+ - giantplus,gpm940b0
+ # Satoz SAT050AT40H12R2 5.0" WVGA TFT LCD panel
+ - satoz,sat050at40h12r2
+ # Sharp LS020B1DD01D 2.0" HQVGA TFT LCD panel
+ - sharp,ls020b1dd01d
+
+ backlight: true
+ enable-gpios: true
+ port: true
+ power-supply: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - power-supply
+
+examples:
+ - |
+ panel_rgb: panel-rgb {
+ compatible = "ampire,am-480272h3tmqw-t01h";
+ power-supply = <&vcc_lcd_reg>;
+
+ port {
+ panel_in_rgb: endpoint {
+ remote-endpoint = <&ltdc_out_rgb>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/sharp,ls020b1dd01d.txt b/Documentation/devicetree/bindings/display/panel/sharp,ls020b1dd01d.txt
deleted file mode 100644
index e45edbc565a3..000000000000
--- a/Documentation/devicetree/bindings/display/panel/sharp,ls020b1dd01d.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-Sharp 2.0" (240x160 pixels) 16-bit TFT LCD panel
-
-Required properties:
-- compatible: should be "sharp,ls020b1dd01d"
-- power-supply: as specified in the base binding
-
-Optional properties:
-- backlight: as specified in the base binding
-- enable-gpios: as specified in the base binding
-
-This binding is compatible with the simple-panel binding, which is specified
-in simple-panel.txt in this directory.
diff --git a/Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml b/Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml
new file mode 100644
index 000000000000..185dcc8fd1f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/sony,acx424akp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sony ACX424AKP 4" 480x864 AMOLED panel
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: sony,acx424akp
+ reg: true
+ reset-gpios: true
+ vddi-supply:
+ description: regulator that supplies the vddi voltage
+ enforce-video-mode: true
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi-controller@a0351000 {
+ compatible = "ste,mcde-dsi";
+ reg = <0xa0351000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "sony,acx424akp";
+ reg = <0>;
+ vddi-supply = <&foo>;
+ reset-gpios = <&foo_gpio 0 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml b/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml
new file mode 100644
index 000000000000..186e5e1c8fa3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/xinpeng,xpp055c272.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/xinpeng,xpp055c272.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xinpeng XPP055C272 5.5in 720x1280 DSI panel
+
+maintainers:
+ - Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: xinpeng,xpp055c272
+ reg: true
+ backlight: true
+ reset-gpios: true
+ iovcc-supply:
+ description: regulator that supplies the iovcc voltage
+ vci-supply:
+ description: regulator that supplies the vci voltage
+
+required:
+ - compatible
+ - reg
+ - backlight
+ - iovcc-supply
+ - vci-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ dsi@ff450000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ panel@0 {
+ compatible = "xinpeng,xpp055c272";
+ reg = <0>;
+ backlight = <&backlight>;
+ iovcc-supply = <&vcc_1v8>;
+ vci-supply = <&vcc3v3_lcd>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/renesas,cmm.yaml b/Documentation/devicetree/bindings/display/renesas,cmm.yaml
new file mode 100644
index 000000000000..a57037b9e9ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/renesas,cmm.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/renesas,cmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car Color Management Module (CMM)
+
+maintainers:
+ - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ - Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
+ - Jacopo Mondi <jacopo+renesas@jmondi.org>
+
+description: |+
+ Renesas R-Car color management module connected to R-Car DU video channels.
+ It provides image enhancement functions such as 1-D look-up tables (LUT),
+ 3-D look-up tables (CLU), 1D-histogram generation (HGO), and color
+ space conversion (CSC).
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,r8a7795-cmm
+ - renesas,r8a7796-cmm
+ - renesas,r8a77965-cmm
+ - renesas,r8a77990-cmm
+ - renesas,r8a77995-cmm
+ - const: renesas,rcar-gen3-cmm
+ - items:
+ - const: renesas,rcar-gen2-cmm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7796-cpg-mssr.h>
+ #include <dt-bindings/power/r8a7796-sysc.h>
+
+ cmm0: cmm@fea40000 {
+ compatible = "renesas,r8a7796-cmm",
+ "renesas,rcar-gen3-cmm";
+ reg = <0 0xfea40000 0 0x1000>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ clocks = <&cpg CPG_MOD 711>;
+ resets = <&cpg 711>;
+ };
diff --git a/Documentation/devicetree/bindings/display/renesas,du.txt b/Documentation/devicetree/bindings/display/renesas,du.txt
index 17cb2771364b..eb4ae41fe41f 100644
--- a/Documentation/devicetree/bindings/display/renesas,du.txt
+++ b/Documentation/devicetree/bindings/display/renesas,du.txt
@@ -41,10 +41,14 @@ Required Properties:
supplied they must be named "dclkin.x" with "x" being the input clock
numerical index.
- - vsps: A list of phandle and channel index tuples to the VSPs that handle
- the memory interfaces for the DU channels. The phandle identifies the VSP
- instance that serves the DU channel, and the channel index identifies the
- LIF instance in that VSP.
+ - renesas,cmms: A list of phandles to the CMM instances present in the SoC,
+ one for each available DU channel. The property shall not be specified for
+ SoCs that do not provide any CMM (such as V3M and V3H).
+
+ - renesas,vsps: A list of phandle and channel index tuples to the VSPs that
+ handle the memory interfaces for the DU channels. The phandle identifies the
+ VSP instance that serves the DU channel, and the channel index identifies
+ the LIF instance in that VSP.
Required nodes:
@@ -92,7 +96,8 @@ Example: R8A7795 (R-Car H3) ES2.0 DU
<&cpg CPG_MOD 722>,
<&cpg CPG_MOD 721>;
clock-names = "du.0", "du.1", "du.2", "du.3";
- vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;
+ renesas,cmms = <&cmm0>, <&cmm1>, <&cmm2>, <&cmm3>;
+ renesas,vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;
ports {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
index ce4c1fc9116c..151be3bba06f 100644
--- a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
@@ -4,13 +4,16 @@ Rockchip specific extensions to the Synopsys Designware MIPI DSI
Required properties:
- #address-cells: Should be <1>.
- #size-cells: Should be <0>.
-- compatible: "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi".
- "rockchip,rk3399-mipi-dsi", "snps,dw-mipi-dsi".
+- compatible: one of
+ "rockchip,px30-mipi-dsi", "snps,dw-mipi-dsi"
+ "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi"
+ "rockchip,rk3399-mipi-dsi", "snps,dw-mipi-dsi"
- reg: Represent the physical address range of the controller.
- interrupts: Represent the controller's interrupt to the CPU(s).
- clocks, clock-names: Phandles to the controller's pll reference
- clock(ref) and APB clock(pclk). For RK3399, a phy config clock
- (phy_cfg) and a grf clock(grf) are required. As described in [1].
+ clock(ref) when using an internal dphy and APB clock(pclk).
+ For RK3399, a phy config clock (phy_cfg) and a grf clock(grf)
+ are required. As described in [1].
- rockchip,grf: this soc should set GRF regs to mux vopl/vopb.
- ports: contain a port node with endpoint definitions as defined in [2].
For vopb,set the reg = <0> and set the reg = <1> for vopl.
@@ -18,6 +21,8 @@ Required properties:
- video port 1 for either a panel or subsequent encoder
Optional properties:
+- phys: from general PHY binding: the phandle for the PHY device.
+- phy-names: Should be "dphy" if phys references an external phy.
- power-domains: a phandle to mipi dsi power domain node.
- resets: list of phandle + reset specifier pairs, as described in [3].
- reset-names: string reset name, must be "apb".
diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
index 7849ff039229..aaf8c44cf90f 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-lvds.txt
@@ -4,6 +4,7 @@ Rockchip RK3288 LVDS interface
Required properties:
- compatible: matching the soc type, one of
- "rockchip,rk3288-lvds";
+ - "rockchip,px30-lvds";
- reg: physical base address of the controller and length
of memory mapped region.
@@ -18,6 +19,9 @@ Required properties:
- rockchip,grf: phandle to the general register files syscon
- rockchip,output: "rgb", "lvds" or "duallvds", This describes the output interface
+- phys: LVDS/DSI DPHY (px30 only)
+- phy-names: name of the PHY, must be "dphy" (px30 only)
+
Optional properties:
- pinctrl-names: must contain a "lcdc" entry.
- pinctrl-0: pin control group to be used for this controller.
diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
deleted file mode 100644
index 31ab72cba3d4..000000000000
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ /dev/null
@@ -1,637 +0,0 @@
-Allwinner A10 Display Pipeline
-==============================
-
-The Allwinner A10 Display pipeline is composed of several components
-that are going to be documented below:
-
-For all connections between components up to the TCONs in the display
-pipeline, when there are multiple components of the same type at the
-same depth, the local endpoint ID must be the same as the remote
-component's index. For example, if the remote endpoint is Frontend 1,
-then the local endpoint ID must be 1.
-
- Frontend 0 [0] ------- [0] Backend 0 [0] ------- [0] TCON 0
- [1] -- -- [1] [1] -- -- [1]
- \ / \ /
- X X
- / \ / \
- [0] -- -- [0] [0] -- -- [0]
- Frontend 1 [1] ------- [1] Backend 1 [1] ------- [1] TCON 1
-
-For a two pipeline system such as the one depicted above, the lines
-represent the connections between the components, while the numbers
-within the square brackets corresponds to the ID of the local endpoint.
-
-The same rule also applies to DE 2.0 mixer-TCON connections:
-
- Mixer 0 [0] ----------- [0] TCON 0
- [1] ---- ---- [1]
- \ /
- X
- / \
- [0] ---- ---- [0]
- Mixer 1 [1] ----------- [1] TCON 1
-
-HDMI Encoder
-------------
-
-The HDMI Encoder supports the HDMI video and audio outputs, and does
-CEC. It is one end of the pipeline.
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun4i-a10-hdmi
- * allwinner,sun5i-a10s-hdmi
- * allwinner,sun6i-a31-hdmi
- - reg: base address and size of memory-mapped region
- - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the HDMI encoder
- * ahb: the HDMI interface clock
- * mod: the HDMI module clock
- * ddc: the HDMI ddc clock (A31 only)
- * pll-0: the first video PLL
- * pll-1: the second video PLL
- - clock-names: the clock names mentioned above
- - resets: phandle to the reset control for the HDMI encoder (A31 only)
- - dmas: phandles to the DMA channels used by the HDMI encoder
- * ddc-tx: The channel for DDC transmission
- * ddc-rx: The channel for DDC reception
- * audio-tx: The channel used for audio transmission
- - dma-names: the channel names mentioned above
-
- - ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoint. The second should be the
- output, usually to an HDMI connector.
-
-DWC HDMI TX Encoder
--------------------
-
-The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
-with Allwinner's own PHY IP. It supports audio and video outputs and CEC.
-
-These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
-Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with the
-following device-specific properties.
-
-Required properties:
-
- - compatible: value must be one of:
- * "allwinner,sun8i-a83t-dw-hdmi"
- * "allwinner,sun50i-a64-dw-hdmi", "allwinner,sun8i-a83t-dw-hdmi"
- * "allwinner,sun50i-h6-dw-hdmi"
- - reg: base address and size of memory-mapped region
- - reg-io-width: See dw_hdmi.txt. Shall be 1.
- - interrupts: HDMI interrupt number
- - clocks: phandles to the clocks feeding the HDMI encoder
- * iahb: the HDMI bus clock
- * isfr: the HDMI register clock
- * tmds: TMDS clock
- * cec: HDMI CEC clock (H6 only)
- * hdcp: HDCP clock (H6 only)
- * hdcp-bus: HDCP bus clock (H6 only)
- - clock-names: the clock names mentioned above
- - resets:
- * ctrl: HDMI controller reset
- * hdcp: HDCP reset (H6 only)
- - reset-names: reset names mentioned above
- - phys: phandle to the DWC HDMI PHY
- - phy-names: must be "phy"
-
- - ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoint. The second should be the
- output, usually to an HDMI connector.
-
-Optional properties:
- - hvcc-supply: the VCC power supply of the controller
-
-DWC HDMI PHY
-------------
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun8i-a83t-hdmi-phy
- * allwinner,sun8i-h3-hdmi-phy
- * allwinner,sun8i-r40-hdmi-phy
- * allwinner,sun50i-a64-hdmi-phy
- * allwinner,sun50i-h6-hdmi-phy
- - reg: base address and size of memory-mapped region
- - clocks: phandles to the clocks feeding the HDMI PHY
- * bus: the HDMI PHY interface clock
- * mod: the HDMI PHY module clock
- - clock-names: the clock names mentioned above
- - resets: phandle to the reset controller driving the PHY
- - reset-names: must be "phy"
-
-H3, A64 and R40 HDMI PHY require additional clocks:
- - pll-0: parent of phy clock
- - pll-1: second possible phy clock parent (A64/R40 only)
-
-TV Encoder
-----------
-
-The TV Encoder supports the composite and VGA output. It is one end of
-the pipeline.
-
-Required properties:
- - compatible: value should be "allwinner,sun4i-a10-tv-encoder".
- - reg: base address and size of memory-mapped region
- - clocks: the clocks driving the TV encoder
- - resets: phandle to the reset controller driving the encoder
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoint.
-
-TCON
-----
-
-The TCON acts as a timing controller for RGB, LVDS and TV interfaces.
-
-Required properties:
- - compatible: value must be either:
- * allwinner,sun4i-a10-tcon
- * allwinner,sun5i-a13-tcon
- * allwinner,sun6i-a31-tcon
- * allwinner,sun6i-a31s-tcon
- * allwinner,sun7i-a20-tcon
- * allwinner,sun8i-a23-tcon
- * allwinner,sun8i-a33-tcon
- * allwinner,sun8i-a83t-tcon-lcd
- * allwinner,sun8i-a83t-tcon-tv
- * allwinner,sun8i-r40-tcon-tv
- * allwinner,sun8i-v3s-tcon
- * allwinner,sun9i-a80-tcon-lcd
- * allwinner,sun9i-a80-tcon-tv
- * "allwinner,sun50i-a64-tcon-lcd", "allwinner,sun8i-a83t-tcon-lcd"
- * "allwinner,sun50i-a64-tcon-tv", "allwinner,sun8i-a83t-tcon-tv"
- * allwinner,sun50i-h6-tcon-tv, allwinner,sun8i-r40-tcon-tv
- - reg: base address and size of memory-mapped region
- - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the TCON.
- - 'ahb': the interface clocks
- - 'tcon-ch0': The clock driving the TCON channel 0, if supported
- - resets: phandles to the reset controllers driving the encoder
- - "lcd": the reset line for the TCON
- - "edp": the reset line for the eDP block (A80 only)
-
- - clock-names: the clock names mentioned above
- - reset-names: the reset names mentioned above
- - clock-output-names: Name of the pixel clock created, if TCON supports
- channel 0.
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoint, the second one the output
-
- The output may have multiple endpoints. TCON can have 1 or 2 channels,
- usually with the first channel being used for the panels interfaces
- (RGB, LVDS, etc.), and the second being used for the outputs that
- require another controller (TV Encoder, HDMI, etc.). The endpoints
- will take an extra property, allwinner,tcon-channel, to specify the
- channel the endpoint is associated to. If that property is not
- present, the endpoint number will be used as the channel number.
-
-For TCONs with channel 0, there is one more clock required:
- - 'tcon-ch0': The clock driving the TCON channel 0
-For TCONs with channel 1, there is one more clock required:
- - 'tcon-ch1': The clock driving the TCON channel 1
-
-When TCON support LVDS (all TCONs except TV TCONs on A83T, R40 and those found
-in A13, H3, H5 and V3s SoCs), you need one more reset line:
- - 'lvds': The reset line driving the LVDS logic
-
-And on the A23, A31, A31s and A33, you need one more clock line:
- - 'lvds-alt': An alternative clock source, separate from the TCON channel 0
- clock, that can be used to drive the LVDS clock
-
-TCON TOP
---------
-
-TCON TOPs main purpose is to configure whole display pipeline. It determines
-relationships between mixers and TCONs, selects source TCON for HDMI, muxes
-LCD and TV encoder GPIO output, selects TV encoder clock source and contains
-additional TV TCON and DSI gates.
-
-It allows display pipeline to be configured in very different ways:
-
- / LCD0/LVDS0
- / [0] TCON-LCD0
- | \ MIPI DSI
- mixer0 |
- \ / [1] TCON-LCD1 - LCD1/LVDS1
- TCON-TOP
- / \ [2] TCON-TV0 [0] - TVE0/RGB
- mixer1 | \
- | TCON-TOP - HDMI
- | /
- \ [3] TCON-TV1 [1] - TVE1/RGB
-
-Note that both TCON TOP references same physical unit. Both mixers can be
-connected to any TCON. Not all TCON TOP variants support all features.
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun8i-r40-tcon-top
- * allwinner,sun50i-h6-tcon-top
- - reg: base address and size of the memory-mapped region.
- - clocks: phandle to the clocks feeding the TCON TOP
- * bus: TCON TOP interface clock
- * tcon-tv0: TCON TV0 clock
- * tve0: TVE0 clock (R40 only)
- * tcon-tv1: TCON TV1 clock (R40 only)
- * tve1: TVE0 clock (R40 only)
- * dsi: MIPI DSI clock (R40 only)
- - clock-names: clock name mentioned above
- - resets: phandle to the reset line driving the TCON TOP
- - #clock-cells : must contain 1
- - clock-output-names: Names of clocks created for TCON TV0 channel clock,
- TCON TV1 channel clock (R40 only) and DSI channel clock (R40 only), in
- that order.
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. 6 ports should
- be defined:
- * port 0 is input for mixer0 mux
- * port 1 is output for mixer0 mux
- * port 2 is input for mixer1 mux
- * port 3 is output for mixer1 mux
- * port 4 is input for HDMI mux
- * port 5 is output for HDMI mux
- All output endpoints for mixer muxes and input endpoints for HDMI mux should
- have reg property with the id of the target TCON, as shown in above graph
- (0-3 for mixer muxes and 0-1 for HDMI mux). All ports should have only one
- endpoint connected to remote endpoint.
-
-DRC
----
-
-The DRC (Dynamic Range Controller), found in the latest Allwinner SoCs
-(A31, A23, A33, A80), allows to dynamically adjust pixel
-brightness/contrast based on histogram measurements for LCD content
-adaptive backlight control.
-
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun6i-a31-drc
- * allwinner,sun6i-a31s-drc
- * allwinner,sun8i-a23-drc
- * allwinner,sun8i-a33-drc
- * allwinner,sun9i-a80-drc
- - reg: base address and size of the memory-mapped region.
- - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the DRC
- * ahb: the DRC interface clock
- * mod: the DRC module clock
- * ram: the DRC DRAM clock
- - clock-names: the clock names mentioned above
- - resets: phandles to the reset line driving the DRC
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoints, the second one the outputs
-
-Display Engine Backend
-----------------------
-
-The display engine backend exposes layers and sprites to the
-system.
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun4i-a10-display-backend
- * allwinner,sun5i-a13-display-backend
- * allwinner,sun6i-a31-display-backend
- * allwinner,sun7i-a20-display-backend
- * allwinner,sun8i-a23-display-backend
- * allwinner,sun8i-a33-display-backend
- * allwinner,sun9i-a80-display-backend
- - reg: base address and size of the memory-mapped region.
- - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the frontend and backend
- * ahb: the backend interface clock
- * mod: the backend module clock
- * ram: the backend DRAM clock
- - clock-names: the clock names mentioned above
- - resets: phandles to the reset controllers driving the backend
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoints, the second one the output
-
-On the A33, some additional properties are required:
- - reg needs to have an additional region corresponding to the SAT
- - reg-names need to be set, with "be" and "sat"
- - clocks and clock-names need to have a phandle to the SAT bus
- clocks, whose name will be "sat"
- - resets and reset-names need to have a phandle to the SAT bus
- resets, whose name will be "sat"
-
-DEU
----
-
-The DEU (Detail Enhancement Unit), found in the Allwinner A80 SoC,
-can sharpen the display content in both luma and chroma channels.
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun9i-a80-deu
- - reg: base address and size of the memory-mapped region.
- - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the DEU
- * ahb: the DEU interface clock
- * mod: the DEU module clock
- * ram: the DEU DRAM clock
- - clock-names: the clock names mentioned above
- - resets: phandles to the reset line driving the DEU
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoints, the second one the outputs
-
-Display Engine Frontend
------------------------
-
-The display engine frontend does formats conversion, scaling,
-deinterlacing and color space conversion.
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun4i-a10-display-frontend
- * allwinner,sun5i-a13-display-frontend
- * allwinner,sun6i-a31-display-frontend
- * allwinner,sun7i-a20-display-frontend
- * allwinner,sun8i-a23-display-frontend
- * allwinner,sun8i-a33-display-frontend
- * allwinner,sun9i-a80-display-frontend
- - reg: base address and size of the memory-mapped region.
- - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the frontend and backend
- * ahb: the backend interface clock
- * mod: the backend module clock
- * ram: the backend DRAM clock
- - clock-names: the clock names mentioned above
- - resets: phandles to the reset controllers driving the backend
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoints, the second one the outputs
-
-Display Engine 2.0 Mixer
-------------------------
-
-The DE2 mixer have many functionalities, currently only layer blending is
-supported.
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun8i-a83t-de2-mixer-0
- * allwinner,sun8i-a83t-de2-mixer-1
- * allwinner,sun8i-h3-de2-mixer-0
- * allwinner,sun8i-r40-de2-mixer-0
- * allwinner,sun8i-r40-de2-mixer-1
- * allwinner,sun8i-v3s-de2-mixer
- * allwinner,sun50i-a64-de2-mixer-0
- * allwinner,sun50i-a64-de2-mixer-1
- * allwinner,sun50i-h6-de3-mixer-0
- - reg: base address and size of the memory-mapped region.
- - clocks: phandles to the clocks feeding the mixer
- * bus: the mixer interface clock
- * mod: the mixer module clock
- - clock-names: the clock names mentioned above
- - resets: phandles to the reset controllers driving the mixer
-
-- ports: A ports node with endpoint definitions as defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt. The
- first port should be the input endpoints, the second one the output
-
-
-Display Engine Pipeline
------------------------
-
-The display engine pipeline (and its entry point, since it can be
-either directly the backend or the frontend) is represented as an
-extra node.
-
-Required properties:
- - compatible: value must be one of:
- * allwinner,sun4i-a10-display-engine
- * allwinner,sun5i-a10s-display-engine
- * allwinner,sun5i-a13-display-engine
- * allwinner,sun6i-a31-display-engine
- * allwinner,sun6i-a31s-display-engine
- * allwinner,sun7i-a20-display-engine
- * allwinner,sun8i-a23-display-engine
- * allwinner,sun8i-a33-display-engine
- * allwinner,sun8i-a83t-display-engine
- * allwinner,sun8i-h3-display-engine
- * allwinner,sun8i-r40-display-engine
- * allwinner,sun8i-v3s-display-engine
- * allwinner,sun9i-a80-display-engine
- * allwinner,sun50i-a64-display-engine
- * allwinner,sun50i-h6-display-engine
-
- - allwinner,pipelines: list of phandle to the display engine
- frontends (DE 1.0) or mixers (DE 2.0/3.0) available.
-
-Example:
-
-panel: panel {
- compatible = "olimex,lcd-olinuxino-43-ts";
- #address-cells = <1>;
- #size-cells = <0>;
-
- port {
- #address-cells = <1>;
- #size-cells = <0>;
-
- panel_input: endpoint {
- remote-endpoint = <&tcon0_out_panel>;
- };
- };
-};
-
-connector {
- compatible = "hdmi-connector";
- type = "a";
-
- port {
- hdmi_con_in: endpoint {
- remote-endpoint = <&hdmi_out_con>;
- };
- };
-};
-
-hdmi: hdmi@1c16000 {
- compatible = "allwinner,sun5i-a10s-hdmi";
- reg = <0x01c16000 0x1000>;
- interrupts = <58>;
- clocks = <&ccu CLK_AHB_HDMI>, <&ccu CLK_HDMI>,
- <&ccu CLK_PLL_VIDEO0_2X>,
- <&ccu CLK_PLL_VIDEO1_2X>;
- clock-names = "ahb", "mod", "pll-0", "pll-1";
- dmas = <&dma SUN4I_DMA_NORMAL 16>,
- <&dma SUN4I_DMA_NORMAL 16>,
- <&dma SUN4I_DMA_DEDICATED 24>;
- dma-names = "ddc-tx", "ddc-rx", "audio-tx";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- hdmi_in_tcon0: endpoint {
- remote-endpoint = <&tcon0_out_hdmi>;
- };
- };
-
- port@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
-
- hdmi_out_con: endpoint {
- remote-endpoint = <&hdmi_con_in>;
- };
- };
- };
-};
-
-tve0: tv-encoder@1c0a000 {
- compatible = "allwinner,sun4i-a10-tv-encoder";
- reg = <0x01c0a000 0x1000>;
- clocks = <&ahb_gates 34>;
- resets = <&tcon_ch0_clk 0>;
-
- port {
- #address-cells = <1>;
- #size-cells = <0>;
-
- tve0_in_tcon0: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&tcon0_out_tve0>;
- };
- };
-};
-
-tcon0: lcd-controller@1c0c000 {
- compatible = "allwinner,sun5i-a13-tcon";
- reg = <0x01c0c000 0x1000>;
- interrupts = <44>;
- resets = <&tcon_ch0_clk 1>;
- reset-names = "lcd";
- clocks = <&ahb_gates 36>,
- <&tcon_ch0_clk>,
- <&tcon_ch1_clk>;
- clock-names = "ahb",
- "tcon-ch0",
- "tcon-ch1";
- clock-output-names = "tcon-pixel-clock";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- tcon0_in: port@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- tcon0_in_be0: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&be0_out_tcon0>;
- };
- };
-
- tcon0_out: port@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
-
- tcon0_out_panel: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&panel_input>;
- };
-
- tcon0_out_tve0: endpoint@1 {
- reg = <1>;
- remote-endpoint = <&tve0_in_tcon0>;
- };
- };
- };
-};
-
-fe0: display-frontend@1e00000 {
- compatible = "allwinner,sun5i-a13-display-frontend";
- reg = <0x01e00000 0x20000>;
- interrupts = <47>;
- clocks = <&ahb_gates 46>, <&de_fe_clk>,
- <&dram_gates 25>;
- clock-names = "ahb", "mod",
- "ram";
- resets = <&de_fe_clk>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- fe0_out: port@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
-
- fe0_out_be0: endpoint {
- remote-endpoint = <&be0_in_fe0>;
- };
- };
- };
-};
-
-be0: display-backend@1e60000 {
- compatible = "allwinner,sun5i-a13-display-backend";
- reg = <0x01e60000 0x10000>;
- interrupts = <47>;
- clocks = <&ahb_gates 44>, <&de_be_clk>,
- <&dram_gates 26>;
- clock-names = "ahb", "mod",
- "ram";
- resets = <&de_be_clk>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- be0_in: port@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- be0_in_fe0: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&fe0_out_be0>;
- };
- };
-
- be0_out: port@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
-
- be0_out_tcon0: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&tcon0_in_be0>;
- };
- };
- };
-};
-
-display-engine {
- compatible = "allwinner,sun5i-a13-display-engine";
- allwinner,pipelines = <&fe0>;
-};
diff --git a/Documentation/devicetree/bindings/display/tilcdc/tfp410.txt b/Documentation/devicetree/bindings/display/tilcdc/tfp410.txt
deleted file mode 100644
index a58ae7756fc6..000000000000
--- a/Documentation/devicetree/bindings/display/tilcdc/tfp410.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Device-Tree bindings for tilcdc DRM TFP410 output driver
-
-Required properties:
- - compatible: value should be "ti,tilcdc,tfp410".
- - i2c: the phandle for the i2c device to use for DDC
-
-Recommended properties:
- - pinctrl-names, pinctrl-0: the pincontrol settings to configure
- muxing properly for pins that connect to TFP410 device
- - powerdn-gpio: the powerdown GPIO, pulled low to power down the
- TFP410 device (for DPMS_OFF)
-
-Example:
-
- dvicape {
- compatible = "ti,tilcdc,tfp410";
- i2c = <&i2c2>;
- pinctrl-names = "default";
- pinctrl-0 = <&bone_dvi_cape_dvi_00A1_pins>;
- powerdn-gpio = <&gpio2 31 0>;
- };
diff --git a/Documentation/devicetree/bindings/dma/fsl-edma.txt b/Documentation/devicetree/bindings/dma/fsl-edma.txt
index 29dd3ccb1235..e77b08ebcd06 100644
--- a/Documentation/devicetree/bindings/dma/fsl-edma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-edma.txt
@@ -10,6 +10,7 @@ Required properties:
- compatible :
- "fsl,vf610-edma" for eDMA used similar to that on Vybrid vf610 SoC
- "fsl,imx7ulp-edma" for eDMA2 used similar to that on i.mx7ulp
+ - "fsl,fsl,ls1028a-edma" for eDMA used similar to that on Vybrid vf610 SoC
- reg : Specifies base physical address(s) and size of the eDMA registers.
The 1st region is eDMA control register's address and size.
The 2nd and the 3rd regions are programmable channel multiplexing
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
index 9d8bbac27d8b..c9e97409e853 100644
--- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
@@ -10,6 +10,9 @@ Required properties:
"fsl,imx6q-sdma"
"fsl,imx7d-sdma"
"fsl,imx8mq-sdma"
+ "fsl,imx8mm-sdma"
+ "fsl,imx8mn-sdma"
+ "fsl,imx8mp-sdma"
The -to variants should be preferred since they allow to determine the
correct ROM script addresses needed for the driver to work without additional
firmware.
diff --git a/Documentation/devicetree/bindings/dma/jz4780-dma.txt b/Documentation/devicetree/bindings/dma/jz4780-dma.txt
index ec89782d9498..3459e77be294 100644
--- a/Documentation/devicetree/bindings/dma/jz4780-dma.txt
+++ b/Documentation/devicetree/bindings/dma/jz4780-dma.txt
@@ -1,4 +1,4 @@
-* Ingenic JZ4780 DMA Controller
+* Ingenic XBurst DMA Controller
Required properties:
@@ -8,10 +8,12 @@ Required properties:
* ingenic,jz4770-dma
* ingenic,jz4780-dma
* ingenic,x1000-dma
+ * ingenic,x1830-dma
- reg: Should contain the DMA channel registers location and length, followed
by the DMA controller registers location and length.
- interrupts: Should contain the interrupt specifier of the DMA controller.
-- clocks: Should contain a clock specifier for the JZ4780/X1000 PDMA clock.
+- clocks: Should contain a clock specifier for the JZ4780/X1000/X1830 PDMA
+ clock.
- #dma-cells: Must be <2>. Number of integer cells in the dmas property of
DMA clients (see below).
diff --git a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
index 5551e929fd99..b7f81c63be8b 100644
--- a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
+++ b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
@@ -30,6 +30,7 @@ Required Properties:
- "renesas,dmac-r8a7794" (R-Car E2)
- "renesas,dmac-r8a7795" (R-Car H3)
- "renesas,dmac-r8a7796" (R-Car M3-W)
+ - "renesas,dmac-r8a77961" (R-Car M3-W+)
- "renesas,dmac-r8a77965" (R-Car M3-N)
- "renesas,dmac-r8a77970" (R-Car V3M)
- "renesas,dmac-r8a77980" (R-Car V3H)
diff --git a/Documentation/devicetree/bindings/dma/st,stm32-dma.yaml b/Documentation/devicetree/bindings/dma/st,stm32-dma.yaml
new file mode 100644
index 000000000000..0c0ac11ad55f
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/st,stm32-dma.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/st,stm32-dma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 DMA Controller bindings
+
+description: |
+ The STM32 DMA is a general-purpose direct memory access controller capable of
+ supporting 8 independent DMA channels. Each channel can have up to 8 requests.
+ DMA clients connected to the STM32 DMA controller must use the format
+ described in the dma.txt file, using a four-cell specifier for each
+ channel: a phandle to the DMA controller plus the following four integer cells:
+ 1. The channel id
+ 2. The request line number
+ 3. A 32bit mask specifying the DMA channel configuration which are device
+ dependent:
+ -bit 9: Peripheral Increment Address
+ 0x0: no address increment between transfers
+ 0x1: increment address between transfers
+ -bit 10: Memory Increment Address
+ 0x0: no address increment between transfers
+ 0x1: increment address between transfers
+ -bit 15: Peripheral Increment Offset Size
+ 0x0: offset size is linked to the peripheral bus width
+ 0x1: offset size is fixed to 4 (32-bit alignment)
+ -bit 16-17: Priority level
+ 0x0: low
+ 0x1: medium
+ 0x2: high
+ 0x3: very high
+ 4. A 32bit bitfield value specifying DMA features which are device dependent:
+ -bit 0-1: DMA FIFO threshold selection
+ 0x0: 1/4 full FIFO
+ 0x1: 1/2 full FIFO
+ 0x2: 3/4 full FIFO
+ 0x3: full FIFO
+
+maintainers:
+ - Amelie Delaunay <amelie.delaunay@st.com>
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ "#dma-cells":
+ const: 4
+
+ compatible:
+ const: st,stm32-dma
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 8
+ description: Should contain all of the per-channel DMA
+ interrupts in ascending order with respect to the
+ DMA channel index.
+
+ resets:
+ maxItems: 1
+
+ st,mem2mem:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: if defined, it indicates that the controller
+ supports memory-to-memory transfer
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ #include <dt-bindings/reset/stm32mp1-resets.h>
+ dma-controller@40026400 {
+ compatible = "st,stm32-dma";
+ reg = <0x40026400 0x400>;
+ interrupts = <56>,
+ <57>,
+ <58>,
+ <59>,
+ <60>,
+ <68>,
+ <69>,
+ <70>;
+ clocks = <&clk_hclk>;
+ #dma-cells = <4>;
+ st,mem2mem;
+ resets = <&rcc 150>;
+ dma-requests = <8>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml b/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml
new file mode 100644
index 000000000000..915bc4af9568
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/st,stm32-dmamux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 DMA MUX (DMA request router) bindings
+
+maintainers:
+ - Amelie Delaunay <amelie.delaunay@st.com>
+
+allOf:
+ - $ref: "dma-router.yaml#"
+
+properties:
+ "#dma-cells":
+ const: 3
+
+ compatible:
+ const: st,stm32h7-dmamux
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - dma-masters
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ #include <dt-bindings/reset/stm32mp1-resets.h>
+ dma-router@40020800 {
+ compatible = "st,stm32h7-dmamux";
+ reg = <0x40020800 0x3c>;
+ #dma-cells = <3>;
+ dma-requests = <128>;
+ dma-channels = <16>;
+ dma-masters = <&dma1 &dma2>;
+ clocks = <&timer_clk>;
+ };
+
+...
+
diff --git a/Documentation/devicetree/bindings/dma/st,stm32-mdma.yaml b/Documentation/devicetree/bindings/dma/st,stm32-mdma.yaml
new file mode 100644
index 000000000000..c66543d0c267
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/st,stm32-mdma.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/st,stm32-mdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 MDMA Controller bindings
+
+description: |
+ The STM32 MDMA is a general-purpose direct memory access controller capable of
+ supporting 64 independent DMA channels with 256 HW requests.
+ DMA clients connected to the STM32 MDMA controller must use the format
+ described in the dma.txt file, using a five-cell specifier for each channel:
+ a phandle to the MDMA controller plus the following five integer cells:
+ 1. The request line number
+ 2. The priority level
+ 0x0: Low
+ 0x1: Medium
+ 0x2: High
+ 0x3: Very high
+ 3. A 32bit mask specifying the DMA channel configuration
+ -bit 0-1: Source increment mode
+ 0x0: Source address pointer is fixed
+ 0x2: Source address pointer is incremented after each data transfer
+ 0x3: Source address pointer is decremented after each data transfer
+ -bit 2-3: Destination increment mode
+ 0x0: Destination address pointer is fixed
+ 0x2: Destination address pointer is incremented after each data transfer
+ 0x3: Destination address pointer is decremented after each data transfer
+ -bit 8-9: Source increment offset size
+ 0x0: byte (8bit)
+ 0x1: half-word (16bit)
+ 0x2: word (32bit)
+ 0x3: double-word (64bit)
+ -bit 10-11: Destination increment offset size
+ 0x0: byte (8bit)
+ 0x1: half-word (16bit)
+ 0x2: word (32bit)
+ 0x3: double-word (64bit)
+ -bit 25-18: The number of bytes to be transferred in a single transfer
+ (min = 1 byte, max = 128 bytes)
+ -bit 29:28: Trigger Mode
+ 0x00: Each MDMA request triggers a buffer transfer (max 128 bytes)
+ 0x1: Each MDMA request triggers a block transfer (max 64K bytes)
+ 0x2: Each MDMA request triggers a repeated block transfer
+ 0x3: Each MDMA request triggers a linked list transfer
+ 4. A 32bit value specifying the register to be used to acknowledge the request
+ if no HW ack signal is used by the MDMA client
+ 5. A 32bit mask specifying the value to be written to acknowledge the request
+ if no HW ack signal is used by the MDMA client
+
+maintainers:
+ - Amelie Delaunay <amelie.delaunay@st.com>
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ "#dma-cells":
+ const: 5
+
+ compatible:
+ const: st,stm32h7-mdma
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ st,ahb-addr-masks:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: Array of u32 mask to list memory devices addressed via AHB bus.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ #include <dt-bindings/reset/stm32mp1-resets.h>
+ dma-controller@52000000 {
+ compatible = "st,stm32h7-mdma";
+ reg = <0x52000000 0x1000>;
+ interrupts = <122>;
+ clocks = <&timer_clk>;
+ resets = <&rcc 992>;
+ #dma-cells = <5>;
+ dma-channels = <16>;
+ dma-requests = <32>;
+ st,ahb-addr-masks = <0x20000000>, <0x00000000>;
+ };
+
+...
+
diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt
deleted file mode 100644
index c5f519097204..000000000000
--- a/Documentation/devicetree/bindings/dma/stm32-dma.txt
+++ /dev/null
@@ -1,83 +0,0 @@
-* STMicroelectronics STM32 DMA controller
-
-The STM32 DMA is a general-purpose direct memory access controller capable of
-supporting 8 independent DMA channels. Each channel can have up to 8 requests.
-
-Required properties:
-- compatible: Should be "st,stm32-dma"
-- reg: Should contain DMA registers location and length. This should include
- all of the per-channel registers.
-- interrupts: Should contain all of the per-channel DMA interrupts in
- ascending order with respect to the DMA channel index.
-- clocks: Should contain the input clock of the DMA instance.
-- #dma-cells : Must be <4>. See DMA client paragraph for more details.
-
-Optional properties:
-- dma-requests : Number of DMA requests supported.
-- resets: Reference to a reset controller asserting the DMA controller
-- st,mem2mem: boolean; if defined, it indicates that the controller supports
- memory-to-memory transfer
-
-Example:
-
- dma2: dma-controller@40026400 {
- compatible = "st,stm32-dma";
- reg = <0x40026400 0x400>;
- interrupts = <56>,
- <57>,
- <58>,
- <59>,
- <60>,
- <68>,
- <69>,
- <70>;
- clocks = <&clk_hclk>;
- #dma-cells = <4>;
- st,mem2mem;
- resets = <&rcc 150>;
- dma-requests = <8>;
- };
-
-* DMA client
-
-DMA clients connected to the STM32 DMA controller must use the format
-described in the dma.txt file, using a four-cell specifier for each
-channel: a phandle to the DMA controller plus the following four integer cells:
-
-1. The channel id
-2. The request line number
-3. A 32bit mask specifying the DMA channel configuration which are device
- dependent:
- -bit 9: Peripheral Increment Address
- 0x0: no address increment between transfers
- 0x1: increment address between transfers
- -bit 10: Memory Increment Address
- 0x0: no address increment between transfers
- 0x1: increment address between transfers
- -bit 15: Peripheral Increment Offset Size
- 0x0: offset size is linked to the peripheral bus width
- 0x1: offset size is fixed to 4 (32-bit alignment)
- -bit 16-17: Priority level
- 0x0: low
- 0x1: medium
- 0x2: high
- 0x3: very high
-4. A 32bit bitfield value specifying DMA features which are device dependent:
- -bit 0-1: DMA FIFO threshold selection
- 0x0: 1/4 full FIFO
- 0x1: 1/2 full FIFO
- 0x2: 3/4 full FIFO
- 0x3: full FIFO
-
-
-Example:
-
- usart1: serial@40011000 {
- compatible = "st,stm32-uart";
- reg = <0x40011000 0x400>;
- interrupts = <37>;
- clocks = <&clk_pclk2>;
- dmas = <&dma2 2 4 0x10400 0x3>,
- <&dma2 7 5 0x10200 0x3>;
- dma-names = "rx", "tx";
- };
diff --git a/Documentation/devicetree/bindings/dma/stm32-dmamux.txt b/Documentation/devicetree/bindings/dma/stm32-dmamux.txt
deleted file mode 100644
index 1b893b235507..000000000000
--- a/Documentation/devicetree/bindings/dma/stm32-dmamux.txt
+++ /dev/null
@@ -1,84 +0,0 @@
-STM32 DMA MUX (DMA request router)
-
-Required properties:
-- compatible: "st,stm32h7-dmamux"
-- reg: Memory map for accessing module
-- #dma-cells: Should be set to <3>.
- First parameter is request line number.
- Second is DMA channel configuration
- Third is Fifo threshold
- For more details about the three cells, please see
- stm32-dma.txt documentation binding file
-- dma-masters: Phandle pointing to the DMA controllers.
- Several controllers are allowed. Only "st,stm32-dma" DMA
- compatible are supported.
-
-Optional properties:
-- dma-channels : Number of DMA requests supported.
-- dma-requests : Number of DMAMUX requests supported.
-- resets: Reference to a reset controller asserting the DMA controller
-- clocks: Input clock of the DMAMUX instance.
-
-Example:
-
-/* DMA controller 1 */
-dma1: dma-controller@40020000 {
- compatible = "st,stm32-dma";
- reg = <0x40020000 0x400>;
- interrupts = <11>,
- <12>,
- <13>,
- <14>,
- <15>,
- <16>,
- <17>,
- <47>;
- clocks = <&timer_clk>;
- #dma-cells = <4>;
- st,mem2mem;
- resets = <&rcc 150>;
- dma-channels = <8>;
- dma-requests = <8>;
-};
-
-/* DMA controller 1 */
-dma2: dma@40020400 {
- compatible = "st,stm32-dma";
- reg = <0x40020400 0x400>;
- interrupts = <56>,
- <57>,
- <58>,
- <59>,
- <60>,
- <68>,
- <69>,
- <70>;
- clocks = <&timer_clk>;
- #dma-cells = <4>;
- st,mem2mem;
- resets = <&rcc 150>;
- dma-channels = <8>;
- dma-requests = <8>;
-};
-
-/* DMA mux */
-dmamux1: dma-router@40020800 {
- compatible = "st,stm32h7-dmamux";
- reg = <0x40020800 0x3c>;
- #dma-cells = <3>;
- dma-requests = <128>;
- dma-channels = <16>;
- dma-masters = <&dma1 &dma2>;
- clocks = <&timer_clk>;
-};
-
-/* DMA client */
-usart1: serial@40011000 {
- compatible = "st,stm32-usart", "st,stm32-uart";
- reg = <0x40011000 0x400>;
- interrupts = <37>;
- clocks = <&timer_clk>;
- dmas = <&dmamux1 41 0x414 0>,
- <&dmamux1 42 0x414 0>;
- dma-names = "rx", "tx";
-};
diff --git a/Documentation/devicetree/bindings/dma/stm32-mdma.txt b/Documentation/devicetree/bindings/dma/stm32-mdma.txt
deleted file mode 100644
index d18772d6bc65..000000000000
--- a/Documentation/devicetree/bindings/dma/stm32-mdma.txt
+++ /dev/null
@@ -1,94 +0,0 @@
-* STMicroelectronics STM32 MDMA controller
-
-The STM32 MDMA is a general-purpose direct memory access controller capable of
-supporting 64 independent DMA channels with 256 HW requests.
-
-Required properties:
-- compatible: Should be "st,stm32h7-mdma"
-- reg: Should contain MDMA registers location and length. This should include
- all of the per-channel registers.
-- interrupts: Should contain the MDMA interrupt.
-- clocks: Should contain the input clock of the DMA instance.
-- resets: Reference to a reset controller asserting the DMA controller.
-- #dma-cells : Must be <5>. See DMA client paragraph for more details.
-
-Optional properties:
-- dma-channels: Number of DMA channels supported by the controller.
-- dma-requests: Number of DMA request signals supported by the controller.
-- st,ahb-addr-masks: Array of u32 mask to list memory devices addressed via
- AHB bus.
-
-Example:
-
- mdma1: dma@52000000 {
- compatible = "st,stm32h7-mdma";
- reg = <0x52000000 0x1000>;
- interrupts = <122>;
- clocks = <&timer_clk>;
- resets = <&rcc 992>;
- #dma-cells = <5>;
- dma-channels = <16>;
- dma-requests = <32>;
- st,ahb-addr-masks = <0x20000000>, <0x00000000>;
- };
-
-* DMA client
-
-DMA clients connected to the STM32 MDMA controller must use the format
-described in the dma.txt file, using a five-cell specifier for each channel:
-a phandle to the MDMA controller plus the following five integer cells:
-
-1. The request line number
-2. The priority level
- 0x00: Low
- 0x01: Medium
- 0x10: High
- 0x11: Very high
-3. A 32bit mask specifying the DMA channel configuration
- -bit 0-1: Source increment mode
- 0x00: Source address pointer is fixed
- 0x10: Source address pointer is incremented after each data transfer
- 0x11: Source address pointer is decremented after each data transfer
- -bit 2-3: Destination increment mode
- 0x00: Destination address pointer is fixed
- 0x10: Destination address pointer is incremented after each data
- transfer
- 0x11: Destination address pointer is decremented after each data
- transfer
- -bit 8-9: Source increment offset size
- 0x00: byte (8bit)
- 0x01: half-word (16bit)
- 0x10: word (32bit)
- 0x11: double-word (64bit)
- -bit 10-11: Destination increment offset size
- 0x00: byte (8bit)
- 0x01: half-word (16bit)
- 0x10: word (32bit)
- 0x11: double-word (64bit)
--bit 25-18: The number of bytes to be transferred in a single transfer
- (min = 1 byte, max = 128 bytes)
--bit 29:28: Trigger Mode
- 0x00: Each MDMA request triggers a buffer transfer (max 128 bytes)
- 0x01: Each MDMA request triggers a block transfer (max 64K bytes)
- 0x10: Each MDMA request triggers a repeated block transfer
- 0x11: Each MDMA request triggers a linked list transfer
-4. A 32bit value specifying the register to be used to acknowledge the request
- if no HW ack signal is used by the MDMA client
-5. A 32bit mask specifying the value to be written to acknowledge the request
- if no HW ack signal is used by the MDMA client
-
-Example:
-
- i2c4: i2c@5c002000 {
- compatible = "st,stm32f7-i2c";
- reg = <0x5c002000 0x400>;
- interrupts = <95>,
- <96>;
- clocks = <&timer_clk>;
- #address-cells = <1>;
- #size-cells = <0>;
- dmas = <&mdma1 36 0x0 0x40008 0x0 0x0>,
- <&mdma1 37 0x0 0x40002 0x0 0x0>;
- dma-names = "rx", "tx";
- status = "disabled";
- };
diff --git a/Documentation/devicetree/bindings/dma/ti/k3-udma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-udma.yaml
new file mode 100644
index 000000000000..8b5c346f23f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/ti/k3-udma.yaml
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/ti/k3-udma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments K3 NAVSS Unified DMA Device Tree Bindings
+
+maintainers:
+ - Peter Ujfalusi <peter.ujfalusi@ti.com>
+
+description: |
+ The UDMA-P is intended to perform similar (but significantly upgraded)
+ functions as the packet-oriented DMA used on previous SoC devices. The UDMA-P
+ module supports the transmission and reception of various packet types.
+ The UDMA-P architecture facilitates the segmentation and reassembly of SoC DMA
+ data structure compliant packets to/from smaller data blocks that are natively
+ compatible with the specific requirements of each connected peripheral.
+ Multiple Tx and Rx channels are provided within the DMA which allow multiple
+ segmentation or reassembly operations to be ongoing. The DMA controller
+ maintains state information for each of the channels which allows packet
+ segmentation and reassembly operations to be time division multiplexed between
+ channels in order to share the underlying DMA hardware. An external DMA
+ scheduler is used to control the ordering and rate at which this multiplexing
+ occurs for Transmit operations. The ordering and rate of Receive operations
+ is indirectly controlled by the order in which blocks are pushed into the DMA
+ on the Rx PSI-L interface.
+
+ The UDMA-P also supports acting as both a UTC and UDMA-C for its internal
+ channels. Channels in the UDMA-P can be configured to be either Packet-Based
+ or Third-Party channels on a channel by channel basis.
+
+ All transfers within NAVSS is done between PSI-L source and destination
+ threads.
+ The peripherals serviced by UDMA can be PSI-L native (sa2ul, cpsw, etc) or
+ legacy, non PSI-L native peripherals. In the later case a special, small PDMA
+ is tasked to act as a bridge between the PSI-L fabric and the legacy
+ peripheral.
+
+ PDMAs can be configured via UDMAP peer registers to match with the
+ configuration of the legacy peripheral.
+
+allOf:
+ - $ref: "../dma-controller.yaml#"
+
+properties:
+ "#dma-cells":
+ const: 1
+ description: |
+ The cell is the PSI-L thread ID of the remote (to UDMAP) end.
+ Valid ranges for thread ID depends on the data movement direction:
+ for source thread IDs (rx): 0 - 0x7fff
+ for destination thread IDs (tx): 0x8000 - 0xffff
+
+ Please refer to the device documentation for the PSI-L thread map and also
+ the PSI-L peripheral chapter for the correct thread ID.
+
+ compatible:
+ enum:
+ - ti,am654-navss-main-udmap
+ - ti,am654-navss-mcu-udmap
+ - ti,j721e-navss-main-udmap
+ - ti,j721e-navss-mcu-udmap
+
+ reg:
+ maxItems: 3
+
+ reg-names:
+ items:
+ - const: gcfg
+ - const: rchanrt
+ - const: tchanrt
+
+ msi-parent: true
+
+ ti,sci:
+ description: phandle to TI-SCI compatible System controller node
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/phandle
+
+ ti,sci-dev-id:
+ description: TI-SCI device id of UDMAP
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+
+ ti,ringacc:
+ description: phandle to the ring accelerator node
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/phandle
+
+ ti,sci-rm-range-tchan:
+ description: |
+ Array of UDMA tchan resource subtypes for resource allocation for this
+ host
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ # Should be enough
+ maxItems: 255
+
+ ti,sci-rm-range-rchan:
+ description: |
+ Array of UDMA rchan resource subtypes for resource allocation for this
+ host
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ # Should be enough
+ maxItems: 255
+
+ ti,sci-rm-range-rflow:
+ description: |
+ Array of UDMA rflow resource subtypes for resource allocation for this
+ host
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ # Should be enough
+ maxItems: 255
+
+required:
+ - compatible
+ - "#dma-cells"
+ - reg
+ - reg-names
+ - msi-parent
+ - ti,sci
+ - ti,sci-dev-id
+ - ti,ringacc
+ - ti,sci-rm-range-tchan
+ - ti,sci-rm-range-rchan
+ - ti,sci-rm-range-rflow
+
+examples:
+ - |+
+ cbass_main {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cbass_main_navss: navss@30800000 {
+ compatible = "simple-mfd";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ dma-coherent;
+ dma-ranges;
+ ranges;
+
+ ti,sci-dev-id = <118>;
+
+ main_udmap: dma-controller@31150000 {
+ compatible = "ti,am654-navss-main-udmap";
+ reg = <0x0 0x31150000 0x0 0x100>,
+ <0x0 0x34000000 0x0 0x100000>,
+ <0x0 0x35000000 0x0 0x100000>;
+ reg-names = "gcfg", "rchanrt", "tchanrt";
+ #dma-cells = <1>;
+
+ ti,ringacc = <&ringacc>;
+
+ msi-parent = <&inta_main_udmass>;
+
+ ti,sci = <&dmsc>;
+ ti,sci-dev-id = <188>;
+
+ ti,sci-rm-range-tchan = <0x1>, /* TX_HCHAN */
+ <0x2>; /* TX_CHAN */
+ ti,sci-rm-range-rchan = <0x4>, /* RX_HCHAN */
+ <0x5>; /* RX_CHAN */
+ ti,sci-rm-range-rflow = <0x6>; /* GP RFLOW */
+ };
+ };
+
+ mcasp0: mcasp@02B00000 {
+ dmas = <&main_udmap 0xc400>, <&main_udmap 0x4400>;
+ dma-names = "tx", "rx";
+ };
+
+ crypto: crypto@4E00000 {
+ compatible = "ti,sa2ul-crypto";
+
+ dmas = <&main_udmap 0xc000>, <&main_udmap 0x4000>, <&main_udmap 0x4001>;
+ dma-names = "tx", "rx1", "rx2";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/gpio/qcom,wcd934x-gpio.yaml b/Documentation/devicetree/bindings/gpio/qcom,wcd934x-gpio.yaml
new file mode 100644
index 000000000000..32a566ec3558
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/qcom,wcd934x-gpio.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/qcom,wcd934x-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: WCD9340/WCD9341 GPIO controller
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ Qualcomm Technologies Inc WCD9340/WCD9341 Audio Codec has integrated
+ gpio controller to control 5 gpios on the chip.
+
+properties:
+ compatible:
+ enum:
+ - qcom,wcd9340-gpio
+ - qcom,wcd9341-gpio
+
+ reg:
+ maxItems: 1
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - gpio-controller
+ - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ wcdgpio: gpio@42 {
+ compatible = "qcom,wcd9340-gpio";
+ reg = <0x042 0x2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
index 41e5fed0f842..10dce84b1545 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
+++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt
@@ -18,7 +18,8 @@ Required Properties:
- "renesas,gpio-r8a7793": for R8A7793 (R-Car M2-N) compatible GPIO controller.
- "renesas,gpio-r8a7794": for R8A7794 (R-Car E2) compatible GPIO controller.
- "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller.
- - "renesas,gpio-r8a7796": for R8A7796 (R-Car M3-W) compatible GPIO controller.
+ - "renesas,gpio-r8a7796": for R8A77960 (R-Car M3-W) compatible GPIO controller.
+ - "renesas,gpio-r8a77961": for R8A77961 (R-Car M3-W+) compatible GPIO controller.
- "renesas,gpio-r8a77965": for R8A77965 (R-Car M3-N) compatible GPIO controller.
- "renesas,gpio-r8a77970": for R8A77970 (R-Car V3M) compatible GPIO controller.
- "renesas,gpio-r8a77980": for R8A77980 (R-Car V3H) compatible GPIO controller.
diff --git a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
new file mode 100644
index 000000000000..418e8381e07c
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/sifive,gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SiFive GPIO controller
+
+maintainers:
+ - Yash Shah <yash.shah@sifive.com>
+ - Paul Walmsley <paul.walmsley@sifive.com>
+
+properties:
+ compatible:
+ items:
+ - const: sifive,fu540-c000-gpio
+ - const: sifive,gpio0
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description:
+ interrupt mapping one per GPIO. Maximum 16 GPIOs.
+ minItems: 1
+ maxItems: 16
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+ clocks:
+ maxItems: 1
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-controller: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+ - clocks
+ - "#gpio-cells"
+ - gpio-controller
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sifive-fu540-prci.h>
+ gpio@10060000 {
+ compatible = "sifive,fu540-c000-gpio", "sifive,gpio0";
+ interrupt-parent = <&plic>;
+ interrupts = <7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22>;
+ reg = <0x0 0x10060000 0x0 0x1000>;
+ clocks = <&tlclk PRCI_CLK_TLCLK>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/gpio/xylon,logicvc-gpio.yaml b/Documentation/devicetree/bindings/gpio/xylon,logicvc-gpio.yaml
new file mode 100644
index 000000000000..d102888c1be7
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/xylon,logicvc-gpio.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 Bootlin
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/gpio/xylon,logicvc-gpio.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Xylon LogiCVC GPIO controller
+
+maintainers:
+ - Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+
+description: |
+ The LogiCVC GPIO describes the GPIO block included in the LogiCVC display
+ controller. These are meant to be used for controlling display-related
+ signals.
+
+ The controller exposes GPIOs from the display and power control registers,
+ which are mapped by the driver as follows:
+ - GPIO[4:0] (display control) mapped to index 0-4
+ - EN_BLIGHT (power control) mapped to index 5
+ - EN_VDD (power control) mapped to index 6
+ - EN_VEE (power control) mapped to index 7
+ - V_EN (power control) mapped to index 8
+
+properties:
+ $nodename:
+ pattern: "^gpio@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - xylon,logicvc-3.02.a-gpio
+
+ reg:
+ maxItems: 1
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-controller: true
+
+ gpio-line-names:
+ minItems: 1
+ maxItems: 9
+
+required:
+ - compatible
+ - reg
+ - "#gpio-cells"
+ - gpio-controller
+
+examples:
+ - |
+ logicvc: logicvc@43c00000 {
+ compatible = "xylon,logicvc-3.02.a", "syscon", "simple-mfd";
+ reg = <0x43c00000 0x6000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ logicvc_gpio: gpio@40 {
+ compatible = "xylon,logicvc-3.02.a-gpio";
+ reg = <0x40 0x40>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4",
+ "EN_BLIGHT", "EN_VDD", "EN_VEE", "V_EN";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml b/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml
new file mode 100644
index 000000000000..2a9822075b36
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/adi,adm1177.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
+
+maintainers:
+ - Michael Hennerich <michael.hennerich@analog.com>
+ - Beniamin Bia <beniamin.bia@analog.com>
+
+description: |
+ Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,adm1177
+
+ reg:
+ maxItems: 1
+
+ avcc-supply:
+ description:
+ Phandle to the Avcc power supply
+
+ shunt-resistor-micro-ohms:
+ description:
+ The value of curent sense resistor in microohms. If not provided,
+ the current reading and overcurrent alert is disabled.
+
+ adi,shutdown-threshold-microamp:
+ description:
+ Specifies the current level at which an over current alert occurs.
+ If not provided, the overcurrent alert is configured to max ADC range
+ based on shunt-resistor-micro-ohms.
+
+ adi,vrange-high-enable:
+ description:
+ Specifies which internal voltage divider to be used. A 1 selects
+ a 7:2 voltage divider while a 0 selects a 14:1 voltage divider.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pwmon@5a {
+ compatible = "adi,adm1177";
+ reg = <0x5a>;
+ shunt-resistor-micro-ohms = <50000>; /* 50 mOhm */
+ adi,shutdown-threshold-microamp = <1059000>; /* 1.059 A */
+ adi,vrange-high-enable;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/ti,ucd90320.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/ti,ucd90320.yaml
new file mode 100644
index 000000000000..5d42e1304202
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/pmbus/ti,ucd90320.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/hwmon/pmbus/ti,ucd90320.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: UCD90320 power sequencer
+
+maintainers:
+ - Jim Wright <wrightj@linux.vnet.ibm.com>
+
+description: |
+ The UCD90320 is a 32-rail PMBus/I2C addressable power-supply sequencer and
+ monitor. The 24 integrated ADC channels (AMONx) monitor the power supply
+ voltage, current, and temperature. Of the 84 GPIO pins, 8 can be used as
+ digital monitors (DMONx), 32 to enable the power supply (ENx), 24 for
+ margining (MARx), 16 for logical GPO, and 32 GPIs for cascading, and system
+ function.
+
+ http://focus.ti.com/lit/ds/symlink/ucd90320.pdf
+
+properties:
+ compatible:
+ enum:
+ - ti,ucd90320
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ucd90320@11 {
+ compatible = "ti,ucd90320";
+ reg = <0x11>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
index 2210f4359c45..8347b1e7c080 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
@@ -18,8 +18,10 @@ Optional properties:
- dma-names: should contain "tx" and "rx".
- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO
capable I2C controllers.
-- i2c-sda-hold-time-ns: TWD hold time, only available for "atmel,sama5d4-i2c"
- and "atmel,sama5d2-i2c".
+- i2c-sda-hold-time-ns: TWD hold time, only available for:
+ "atmel,sama5d4-i2c",
+ "atmel,sama5d2-i2c",
+ "microchip,sam9x60-i2c".
- Child nodes conforming to i2c bus binding
Examples :
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
index b245363d6d60..f0c072ff9eca 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible :
- "fsl,imx7ulp-lpi2c" for LPI2C compatible with the one integrated on i.MX7ULP soc
- "fsl,imx8qxp-lpi2c" for LPI2C compatible with the one integrated on i.MX8QXP soc
+ - "fsl,imx8qm-lpi2c" for LPI2C compatible with the one integrated on i.MX8QM soc
- reg : address and length of the lpi2c master registers
- interrupts : lpi2c interrupt
- clocks : lpi2c clock specifier
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
new file mode 100644
index 000000000000..4147f02b5e3c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/accel/adi,adis16240.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADIS16240 Programmable Impact Sensor and Recorder driver
+
+maintainers:
+ - Alexandru Ardelean <alexandru.ardelean@analog.com>
+
+description: |
+ ADIS16240 Programmable Impact Sensor and Recorder driver that supports
+ SPI interface.
+ https://www.analog.com/en/products/adis16240.html
+
+properties:
+ compatible:
+ enum:
+ - adi,adis16240
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Example for a SPI device node */
+ accelerometer@0 {
+ compatible = "adi,adis16240";
+ reg = <0>;
+ spi-max-frequency = <2500000>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/accel/bma180.txt b/Documentation/devicetree/bindings/iio/accel/bma180.txt
index 3b25b4c4d446..f53237270b32 100644
--- a/Documentation/devicetree/bindings/iio/accel/bma180.txt
+++ b/Documentation/devicetree/bindings/iio/accel/bma180.txt
@@ -1,11 +1,14 @@
-* Bosch BMA180 / BMA250 triaxial acceleration sensor
+* Bosch BMA180 / BMA25x triaxial acceleration sensor
http://omapworld.com/BMA180_111_1002839.pdf
http://ae-bst.resource.bosch.com/media/products/dokumente/bma250/bst-bma250-ds002-05.pdf
Required properties:
- - compatible : should be "bosch,bma180" or "bosch,bma250"
+ - compatible : should be one of:
+ "bosch,bma180"
+ "bosch,bma250"
+ "bosch,bma254"
- reg : the I2C address of the sensor
Optional properties:
diff --git a/Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml b/Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml
new file mode 100644
index 000000000000..c1c6d6f223cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/accel/bosch,bma400.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bosch BMA400 triaxial acceleration sensor
+
+maintainers:
+ - Dan Robertson <dan@dlrobertson.com>
+
+description: |
+ Acceleration and temperature iio sensors with an i2c interface
+
+ Specifications about the sensor can be found at:
+ https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMA400-DS000.pdf
+
+properties:
+ compatible:
+ enum:
+ - bosch,bma400
+
+ reg:
+ maxItems: 1
+
+ vdd-supply:
+ description: phandle to the regulator that provides power to the accelerometer
+
+ vddio-supply:
+ description: phandle to the regulator that provides power to the sensor's IO
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ accelerometer@14 {
+ compatible = "bosch,bma400";
+ reg = <0x14>;
+ vdd-supply = <&vdd>;
+ vddio-supply = <&vddio>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt b/Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt
index eb76a02e2a82..ce950e162d5d 100644
--- a/Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt
+++ b/Documentation/devicetree/bindings/iio/accel/kionix,kxcjk1013.txt
@@ -9,9 +9,16 @@ Required properties:
"kionix,kxtf9"
- reg: i2c slave address
+Optional properties:
+
+ - mount-matrix: an optional 3x3 mounting rotation matrix
+
Example:
kxtf9@f {
compatible = "kionix,kxtf9";
reg = <0x0F>;
+ mount-matrix = "0", "1", "0",
+ "1", "0", "0",
+ "0", "0", "1";
};
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
new file mode 100644
index 000000000000..31ffa275f5fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/adi,ad7091r5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AD7091R5 4-Channel 12-Bit ADC
+
+maintainers:
+ - Beniamin Bia <beniamin.bia@analog.com>
+
+description: |
+ Analog Devices AD7091R5 4-Channel 12-Bit ADC
+ https://www.analog.com/media/en/technical-documentation/data-sheets/ad7091r-5.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,ad7091r5
+
+ reg:
+ maxItems: 1
+
+ vref-supply:
+ description:
+ Phandle to the vref power supply
+
+ interrupts:
+ maxItems: 1
+
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@2f {
+ compatible = "adi,ad7091r5";
+ reg = <0x2f>;
+
+ interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
index 6eb33207a167..5117ad68a584 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
@@ -82,7 +82,7 @@ properties:
Must be the device tree identifier of the over-sampling
mode pins. As the line is active high, it should be marked
GPIO_ACTIVE_HIGH.
- maxItems: 1
+ maxItems: 3
adi,sw-mode:
description:
@@ -125,9 +125,9 @@ examples:
adi,conversion-start-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio 27 GPIO_ACTIVE_HIGH>;
adi,first-data-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
- adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH
- &gpio 23 GPIO_ACTIVE_HIGH
- &gpio 26 GPIO_ACTIVE_HIGH>;
+ adi,oversampling-ratio-gpios = <&gpio 18 GPIO_ACTIVE_HIGH>,
+ <&gpio 23 GPIO_ACTIVE_HIGH>,
+ <&gpio 26 GPIO_ACTIVE_HIGH>;
standby-gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
adi,sw-mode;
};
diff --git a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
new file mode 100644
index 000000000000..59009997dca0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/lltc,ltc2496.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology / Analog Devices LTC2496 ADC
+
+maintainers:
+ - Lars-Peter Clausen <lars@metafoo.de>
+ - Michael Hennerich <Michael.Hennerich@analog.com>
+ - Stefan Popa <stefan.popa@analog.com>
+
+properties:
+ compatible:
+ enum:
+ - lltc,ltc2496
+
+ vref-supply:
+ description: phandle to an external regulator providing the reference voltage
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/phandle
+
+ reg:
+ description: spi chipselect number according to the usual spi bindings
+
+ spi-max-frequency:
+ description: maximal spi bus frequency supported
+
+required:
+ - compatible
+ - vref-supply
+ - reg
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ adc@0 {
+ compatible = "lltc,ltc2496";
+ reg = <0>;
+ vref-supply = <&ltc2496_reg>;
+ spi-max-frequency = <2000000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
deleted file mode 100644
index 59b92cd32552..000000000000
--- a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-Device-Tree bindings for sigma delta modulator
-
-Required properties:
-- compatible: should be "ads1201", "sd-modulator". "sd-modulator" can be use
- as a generic SD modulator if modulator not specified in compatible list.
-- #io-channel-cells = <0>: See the IIO bindings section "IIO consumers".
-
-Example node:
-
- ads1202: adc {
- compatible = "sd-modulator";
- #io-channel-cells = <0>;
- };
diff --git a/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
new file mode 100644
index 000000000000..a390343d0c2a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/sigma-delta-modulator.yaml
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/sigma-delta-modulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Device-Tree bindings for sigma delta modulator
+
+maintainers:
+ - Arnaud Pouliquen <arnaud.pouliquen@st.com>
+
+properties:
+ compatible:
+ description: |
+ "sd-modulator" can be used as a generic SD modulator,
+ if the modulator is not specified in the compatible list.
+ enum:
+ - sd-modulator
+ - ads1201
+
+ '#io-channel-cells':
+ const: 0
+
+required:
+ - compatible
+ - '#io-channel-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ ads1202: adc {
+ compatible = "sd-modulator";
+ #io-channel-cells = <0>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt
deleted file mode 100644
index 75ba25d062e1..000000000000
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.txt
+++ /dev/null
@@ -1,135 +0,0 @@
-STMicroelectronics STM32 DFSDM ADC device driver
-
-
-STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
-interface external sigma delta modulators to STM32 micro controllers.
-It is mainly targeted for:
-- Sigma delta modulators (motor control, metering...)
-- PDM microphones (audio digital microphone)
-
-It features up to 8 serial digital interfaces (SPI or Manchester) and
-up to 4 filters on stm32h7 or 6 filters on stm32mp1.
-
-Each child node match with a filter instance.
-
-Contents of a STM32 DFSDM root node:
-------------------------------------
-Required properties:
-- compatible: Should be one of:
- "st,stm32h7-dfsdm"
- "st,stm32mp1-dfsdm"
-- reg: Offset and length of the DFSDM block register set.
-- clocks: IP and serial interfaces clocking. Should be set according
- to rcc clock ID and "clock-names".
-- clock-names: Input clock name "dfsdm" must be defined,
- "audio" is optional. If defined CLKOUT is based on the audio
- clock, else "dfsdm" is used.
-- #interrupt-cells = <1>;
-- #address-cells = <1>;
-- #size-cells = <0>;
-
-Optional properties:
-- spi-max-frequency: Requested only for SPI master mode.
- SPI clock OUT frequency (Hz). This clock must be set according
- to "clock" property. Frequency must be a multiple of the rcc
- clock frequency. If not, SPI CLKOUT frequency will not be
- accurate.
-- pinctrl-names: Set to "default".
-- pinctrl-0: List of phandles pointing to pin configuration
- nodes to set pins in mode of operation for dfsdm
- on external pin.
-
-Contents of a STM32 DFSDM child nodes:
---------------------------------------
-
-Required properties:
-- compatible: Must be:
- "st,stm32-dfsdm-adc" for sigma delta ADCs
- "st,stm32-dfsdm-dmic" for audio digital microphone.
-- reg: Specifies the DFSDM filter instance used.
- Valid values are from 0 to 3 on stm32h7, 0 to 5 on stm32mp1.
-- interrupts: IRQ lines connected to each DFSDM filter instance.
-- st,adc-channels: List of single-ended channels muxed for this ADC.
- valid values:
- "st,stm32h7-dfsdm" compatibility: 0 to 7.
-- st,adc-channel-names: List of single-ended channel names.
-- st,filter-order: SinC filter order from 0 to 5.
- 0: FastSinC
- [1-5]: order 1 to 5.
- For audio purpose it is recommended to use order 3 to 5.
-- #io-channel-cells = <1>: See the IIO bindings section "IIO consumers".
-
-Required properties for "st,stm32-dfsdm-adc" compatibility:
-- io-channels: From common IIO binding. Used to pipe external sigma delta
- modulator or internal ADC output to DFSDM channel.
- This is not required for "st,stm32-dfsdm-pdm" compatibility as
- PDM microphone is binded in Audio DT node.
-
-Required properties for "st,stm32-dfsdm-pdm" compatibility:
-- #sound-dai-cells: Must be set to 0.
-- dma: DMA controller phandle and DMA request line associated to the
- filter instance (specified by the field "reg")
-- dma-names: Must be "rx"
-
-Optional properties:
-- st,adc-channel-types: Single-ended channel input type.
- - "SPI_R": SPI with data on rising edge (default)
- - "SPI_F": SPI with data on falling edge
- - "MANCH_R": manchester codec, rising edge = logic 0, falling edge = logic 1
- - "MANCH_F": manchester codec, rising edge = logic 1, falling edge = logic 0
-- st,adc-channel-clk-src: Conversion clock source.
- - "CLKIN": external SPI clock (CLKIN x)
- - "CLKOUT": internal SPI clock (CLKOUT) (default)
- - "CLKOUT_F": internal SPI clock divided by 2 (falling edge).
- - "CLKOUT_R": internal SPI clock divided by 2 (rising edge).
-
-- st,adc-alt-channel: Must be defined if two sigma delta modulator are
- connected on same SPI input.
- If not set, channel n is connected to SPI input n.
- If set, channel n is connected to SPI input n + 1.
-
-- st,filter0-sync: Set to 1 to synchronize with DFSDM filter instance 0.
- Used for multi microphones synchronization.
-
-Example of a sigma delta adc connected on DFSDM SPI port 0
-and a pdm microphone connected on DFSDM SPI port 1:
-
- ads1202: simple_sd_adc@0 {
- compatible = "ads1202";
- #io-channel-cells = <1>;
- };
-
- dfsdm: dfsdm@40017000 {
- compatible = "st,stm32h7-dfsdm";
- reg = <0x40017000 0x400>;
- clocks = <&rcc DFSDM1_CK>;
- clock-names = "dfsdm";
- #interrupt-cells = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- dfsdm_adc0: filter@0 {
- compatible = "st,stm32-dfsdm-adc";
- #io-channel-cells = <1>;
- reg = <0>;
- interrupts = <110>;
- st,adc-channels = <0>;
- st,adc-channel-names = "sd_adc0";
- st,adc-channel-types = "SPI_F";
- st,adc-channel-clk-src = "CLKOUT";
- io-channels = <&ads1202 0>;
- st,filter-order = <3>;
- };
- dfsdm_pdm1: filter@1 {
- compatible = "st,stm32-dfsdm-dmic";
- reg = <1>;
- interrupts = <111>;
- dmas = <&dmamux1 102 0x400 0x00>;
- dma-names = "rx";
- st,adc-channels = <1>;
- st,adc-channel-names = "dmic1";
- st,adc-channel-types = "SPI_R";
- st,adc-channel-clk-src = "CLKOUT";
- st,filter-order = <5>;
- };
- }
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
new file mode 100644
index 000000000000..c91407081aa5
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
@@ -0,0 +1,332 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/st,stm32-dfsdm-adc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 DFSDM ADC device driver
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+ - Olivier Moysan <olivier.moysan@st.com>
+
+description: |
+ STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
+ interface external sigma delta modulators to STM32 micro controllers.
+ It is mainly targeted for:
+ - Sigma delta modulators (motor control, metering...)
+ - PDM microphones (audio digital microphone)
+
+ It features up to 8 serial digital interfaces (SPI or Manchester) and
+ up to 4 filters on stm32h7 or 6 filters on stm32mp1.
+
+ Each child node matches with a filter instance.
+
+properties:
+ compatible:
+ enum:
+ - st,stm32h7-dfsdm
+ - st,stm32mp1-dfsdm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description:
+ Internal clock used for DFSDM digital processing and control blocks.
+ dfsdm clock can also feed CLKOUT, when CLKOUT is used.
+ - description: audio clock can be used as an alternate to feed CLKOUT.
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: dfsdm
+ - const: audio
+ minItems: 1
+ maxItems: 2
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ spi-max-frequency:
+ description:
+ SPI clock OUT frequency (Hz). Requested only for SPI master mode.
+ This clock must be set according to the "clock" property.
+ Frequency must be a multiple of the rcc clock frequency.
+ If not, SPI CLKOUT frequency will not be accurate.
+ maximum: 20000000
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - "#address-cells"
+ - "#size-cells"
+
+patternProperties:
+ "^filter@[0-9]+$":
+ type: object
+ description: child node
+
+ properties:
+ compatible:
+ enum:
+ - st,stm32-dfsdm-adc
+ - st,stm32-dfsdm-dmic
+
+ reg:
+ description: Specifies the DFSDM filter instance used.
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ st,adc-channels:
+ description: |
+ List of single-ended channels muxed for this ADC.
+ On stm32h7 and stm32mp1:
+ - For st,stm32-dfsdm-adc: up to 8 channels numbered from 0 to 7.
+ - For st,stm32-dfsdm-dmic: 1 channel numbered from 0 to 7.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - items:
+ minimum: 0
+ maximum: 7
+
+ st,adc-channel-names:
+ description: List of single-ended channel names.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/string-array
+
+ st,filter-order:
+ description: |
+ SinC filter order from 0 to 5.
+ - 0: FastSinC
+ - [1-5]: order 1 to 5.
+ For audio purpose it is recommended to use order 3 to 5.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - items:
+ minimum: 0
+ maximum: 5
+
+ "#io-channel-cells":
+ const: 1
+
+ st,adc-channel-types:
+ description: |
+ Single-ended channel input type.
+ - "SPI_R": SPI with data on rising edge (default)
+ - "SPI_F": SPI with data on falling edge
+ - "MANCH_R": manchester codec, rising edge = logic 0, falling edge = logic 1
+ - "MANCH_F": manchester codec, rising edge = logic 1, falling edge = logic 0
+ items:
+ enum: [ SPI_R, SPI_F, MANCH_R, MANCH_F ]
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+ st,adc-channel-clk-src:
+ description: |
+ Conversion clock source.
+ - "CLKIN": external SPI clock (CLKIN x)
+ - "CLKOUT": internal SPI clock (CLKOUT) (default)
+ - "CLKOUT_F": internal SPI clock divided by 2 (falling edge).
+ - "CLKOUT_R": internal SPI clock divided by 2 (rising edge).
+ items:
+ enum: [ CLKIN, CLKOUT, CLKOUT_F, CLKOUT_R ]
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+ st,adc-alt-channel:
+ description:
+ Must be defined if two sigma delta modulators are
+ connected on same SPI input.
+ If not set, channel n is connected to SPI input n.
+ If set, channel n is connected to SPI input n + 1.
+ type: boolean
+
+ st,filter0-sync:
+ description:
+ Set to 1 to synchronize with DFSDM filter instance 0.
+ Used for multi microphones synchronization.
+ type: boolean
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - const: rx
+
+ required:
+ - compatible
+ - reg
+ - interrupts
+ - st,adc-channels
+ - st,adc-channel-names
+ - st,filter-order
+ - "#io-channel-cells"
+
+ allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-dfsdm-adc
+
+ - then:
+ properties:
+ st,adc-channels:
+ minItems: 1
+ maxItems: 8
+
+ st,adc-channel-names:
+ minItems: 1
+ maxItems: 8
+
+ st,adc-channel-types:
+ minItems: 1
+ maxItems: 8
+
+ st,adc-channel-clk-src:
+ minItems: 1
+ maxItems: 8
+
+ io-channels:
+ description:
+ From common IIO binding. Used to pipe external sigma delta
+ modulator or internal ADC output to DFSDM channel.
+ This is not required for "st,stm32-dfsdm-pdm" compatibility as
+ PDM microphone is binded in Audio DT node.
+
+ required:
+ - io-channels
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-dfsdm-dmic
+
+ - then:
+ properties:
+ st,adc-channels:
+ maxItems: 1
+
+ st,adc-channel-names:
+ maxItems: 1
+
+ st,adc-channel-types:
+ maxItems: 1
+
+ st,adc-channel-clk-src:
+ maxItems: 1
+
+ required:
+ - dmas
+ - dma-names
+
+ patternProperties:
+ "^dfsdm-dai+$":
+ type: object
+ description: child node
+
+ properties:
+ "#sound-dai-cells":
+ const: 0
+
+ io-channels:
+ description:
+ From common IIO binding. Used to pipe external sigma delta
+ modulator or internal ADC output to DFSDM channel.
+
+ required:
+ - "#sound-dai-cells"
+ - io-channels
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32h7-dfsdm
+
+ - then:
+ patternProperties:
+ "^filter@[0-9]+$":
+ properties:
+ reg:
+ items:
+ minimum: 0
+ maximum: 3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32mp1-dfsdm
+
+ - then:
+ patternProperties:
+ "^filter@[0-9]+$":
+ properties:
+ reg:
+ items:
+ minimum: 0
+ maximum: 5
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ dfsdm: dfsdm@4400d000 {
+ compatible = "st,stm32mp1-dfsdm";
+ reg = <0x4400d000 0x800>;
+ clocks = <&rcc DFSDM_K>, <&rcc ADFSDM_K>;
+ clock-names = "dfsdm", "audio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ dfsdm0: filter@0 {
+ compatible = "st,stm32-dfsdm-dmic";
+ reg = <0>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dmamux1 101 0x400 0x01>;
+ dma-names = "rx";
+ #io-channel-cells = <1>;
+ st,adc-channels = <1>;
+ st,adc-channel-names = "dmic0";
+ st,adc-channel-types = "SPI_R";
+ st,adc-channel-clk-src = "CLKOUT";
+ st,filter-order = <5>;
+
+ asoc_pdm0: dfsdm-dai {
+ compatible = "st,stm32h7-dfsdm-dai";
+ #sound-dai-cells = <0>;
+ io-channels = <&dfsdm0 0>;
+ };
+ };
+
+ dfsdm_pdm1: filter@1 {
+ compatible = "st,stm32-dfsdm-adc";
+ reg = <1>;
+ interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dmamux1 102 0x400 0x01>;
+ dma-names = "rx";
+ #io-channel-cells = <1>;
+ st,adc-channels = <2 3>;
+ st,adc-channel-names = "in2", "in3";
+ st,adc-channel-types = "SPI_R", "SPI_R";
+ st,adc-channel-clk-src = "CLKOUT_F", "CLKOUT_F";
+ io-channels = <&sd_adc2 &sd_adc3>;
+ st,filter-order = <1>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt b/Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt
index ed7783f45233..cd903a1d880d 100644
--- a/Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16480.txt
@@ -8,6 +8,7 @@ Required properties for the ADIS16480:
* "adi,adis16480"
* "adi,adis16485"
* "adi,adis16488"
+ * "adi,adis16490"
* "adi,adis16495-1"
* "adi,adis16495-2"
* "adi,adis16495-3"
diff --git a/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml b/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
new file mode 100644
index 000000000000..9f5ca9c42025
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/pressure/asc,dlhl60d.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: All Sensors DLH series low voltage digital pressure sensors
+
+maintainers:
+ - Tomislav Denis <tomislav.denis@avl.com>
+
+description: |
+ Bindings for the All Sensors DLH series pressure sensors.
+
+ Specifications about the sensors can be found at:
+ http://www.allsensors.com/cad/DS-0355_Rev_B.PDF
+
+properties:
+ compatible:
+ enum:
+ - asc,dlhl60d
+ - asc,dlhl60g
+
+ reg:
+ description: I2C device address
+ maxItems: 1
+
+ interrupts:
+ description: interrupt mapping for EOC(data ready) pin
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pressure@29 {
+ compatible = "asc,dlhl60d";
+ reg = <0x29>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <10 IRQ_TYPE_EDGE_RISING>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
new file mode 100644
index 000000000000..a079c9921af6
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/parallax-ping.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Parallax PING))) and LaserPING range finder
+
+maintainers:
+ - Andreas Klinger <ak@it-klinger.de>
+
+description: |
+ Bit-banging driver using one GPIO:
+ - ping-gpios is raised by the driver to start measurement
+ - direction of ping-gpio is then switched into input with an interrupt
+ for receiving distance value as PWM signal
+
+ Specifications about the devices can be found at:
+ http://parallax.com/sites/default/files/downloads/28041-LaserPING-2m-Rangefinder-Guide.pdf
+ http://parallax.com/sites/default/files/downloads/28015-PING-Documentation-v1.6.pdf
+
+properties:
+ compatible:
+ enum:
+ - parallax,ping
+ - parallax,laserping
+
+ ping-gpios:
+ description:
+ Definition of the GPIO for the triggering and echo (output and input)
+ This GPIO is set for about 5 us by the driver to tell the device it
+ should initiate the measurement cycle. Afterwards the GPIO is switched
+ to input direction with an interrupt. The device sets it and the
+ length of the input signal corresponds to the measured distance.
+ It needs to be an GPIO which is able to deliver an interrupt because
+ the time between two interrupts is measured in the driver.
+ See Documentation/devicetree/bindings/gpio/gpio.txt for information
+ on how to specify a consumer gpio.
+ maxItems: 1
+
+required:
+ - compatible
+ - ping-gpios
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ proximity {
+ compatible = "parallax,laserping";
+ ping-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt b/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt
index 28bc5c4d965b..bb85cd0e039c 100644
--- a/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt
+++ b/Documentation/devicetree/bindings/iio/temperature/maxim_thermocouple.txt
@@ -5,7 +5,10 @@ Maxim thermocouple support
Required properties:
- - compatible: must be "maxim,max31855" or "maxim,max6675"
+ - compatible: must be "maxim,max6675" or one of the following:
+ "maxim,max31855k", "maxim,max31855j", "maxim,max31855n",
+ "maxim,max31855s", "maxim,max31855t", "maxim,max31855e",
+ "maxim,max31855r"; the generic "max,max31855" is deprecated.
- reg: SPI chip select number for the device
- spi-max-frequency: must be 4300000
- spi-cpha: must be defined for max6675 to enable SPI mode 1
@@ -15,7 +18,7 @@ Required properties:
Example:
max31855@0 {
- compatible = "maxim,max31855";
+ compatible = "maxim,max31855k";
reg = <0>;
spi-max-frequency = <4300000>;
};
diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8916.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8916.yaml
new file mode 100644
index 000000000000..4107e60cab12
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8916.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,msm8916.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MSM8916 Network-On-Chip interconnect
+
+maintainers:
+ - Georgi Djakov <georgi.djakov@linaro.org>
+
+description: |
+ The Qualcomm MSM8916 interconnect providers support adjusting the
+ bandwidth requirements between the various NoC fabrics.
+
+properties:
+ compatible:
+ enum:
+ - qcom,msm8916-bimc
+ - qcom,msm8916-pcnoc
+ - qcom,msm8916-snoc
+
+ reg:
+ maxItems: 1
+
+ '#interconnect-cells':
+ const: 1
+
+ clock-names:
+ items:
+ - const: bus
+ - const: bus_a
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Bus A Clock
+
+required:
+ - compatible
+ - reg
+ - '#interconnect-cells'
+ - clock-names
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+
+ bimc: interconnect@400000 {
+ compatible = "qcom,msm8916-bimc";
+ reg = <0x00400000 0x62000>;
+ #interconnect-cells = <1>;
+ clock-names = "bus", "bus_a";
+ clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
+ <&rpmcc RPM_SMD_BIMC_A_CLK>;
+ };
+
+ pcnoc: interconnect@500000 {
+ compatible = "qcom,msm8916-pcnoc";
+ reg = <0x00500000 0x11000>;
+ #interconnect-cells = <1>;
+ clock-names = "bus", "bus_a";
+ clocks = <&rpmcc RPM_SMD_PCNOC_CLK>,
+ <&rpmcc RPM_SMD_PCNOC_A_CLK>;
+ };
+
+ snoc: interconnect@580000 {
+ compatible = "qcom,msm8916-snoc";
+ reg = <0x00580000 0x14000>;
+ #interconnect-cells = <1>;
+ clock-names = "bus", "bus_a";
+ clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
+ <&rpmcc RPM_SMD_SNOC_A_CLK>;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
index 684bb1cd75ec..23b18b92c558 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
@@ -17,6 +17,7 @@ Required properties:
"amlogic,meson-axg-gpio-intc" for AXG SoCs (A113D, A113X)
"amlogic,meson-g12a-gpio-intc" for G12A SoCs (S905D2, S905X2, S905Y2)
"amlogic,meson-sm1-gpio-intc" for SM1 SoCs (S905D3, S905X3, S905Y3)
+ "amlogic,meson-a1-gpio-intc" for A1 SoCs (A113L)
- reg : Specifies base physical address and size of the registers.
- interrupt-controller : Identifies the node as an interrupt controller.
- #interrupt-cells : Specifies the number of cells needed to encode an
diff --git a/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
new file mode 100644
index 000000000000..251ed44171db
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
@@ -0,0 +1,23 @@
+Aspeed AST25XX and AST26XX SCU Interrupt Controller
+
+Required Properties:
+ - #interrupt-cells : must be 1
+ - compatible : must be "aspeed,ast2500-scu-ic",
+ "aspeed,ast2600-scu-ic0" or
+ "aspeed,ast2600-scu-ic1"
+ - interrupts : interrupt from the parent controller
+ - interrupt-controller : indicates that the controller receives and
+ fires new interrupts for child busses
+
+Example:
+
+ syscon@1e6e2000 {
+ ranges = <0 0x1e6e2000 0x1a8>;
+
+ scu_ic: interrupt-controller@18 {
+ #interrupt-cells = <1>;
+ compatible = "aspeed,ast2500-scu-ic";
+ interrupts = <21>;
+ interrupt-controller;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.yaml b/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.yaml
new file mode 100644
index 000000000000..43c6effbb5bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/fsl,intmux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale INTMUX interrupt multiplexer
+
+maintainers:
+ - Joakim Zhang <qiangqing.zhang@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx-intmux
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 8
+ description: |
+ Should contain the parent interrupt lines (up to 8) used to multiplex
+ the input interrupts.
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+ description: |
+ The 1st cell is hw interrupt number, the 2nd cell is channel index.
+
+ clocks:
+ description: ipg clock.
+
+ clock-names:
+ const: ipg
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+ - '#interrupt-cells'
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ interrupt-controller@37400000 {
+ compatible = "fsl,imx-intmux";
+ reg = <0x37400000 0x1000>;
+ interrupts = <0 16 4>,
+ <0 17 4>,
+ <0 18 4>,
+ <0 19 4>,
+ <0 20 4>,
+ <0 21 4>,
+ <0 22 4>,
+ <0 23 4>;
+ interrupt-controller;
+ interrupt-parent = <&gic>;
+ #interrupt-cells = <2>;
+ clocks = <&clk>;
+ clock-names = "ipg";
+ };
diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index 9fa6f9795d50..26d770ef3601 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -1,173 +1 @@
-* Common leds properties.
-
-LED and flash LED devices provide the same basic functionality as current
-regulators, but extended with LED and flash LED specific features like
-blinking patterns, flash timeout, flash faults and external flash strobe mode.
-
-Many LED devices expose more than one current output that can be connected
-to one or more discrete LED component. Since the arrangement of connections
-can influence the way of the LED device initialization, the LED components
-have to be tightly coupled with the LED device binding. They are represented
-by child nodes of the parent LED device binding.
-
-
-Optional properties for child nodes:
-- led-sources : List of device current outputs the LED is connected to. The
- outputs are identified by the numbers that must be defined
- in the LED device binding documentation.
-
-- function: LED functon. Use one of the LED_FUNCTION_* prefixed definitions
- from the header include/dt-bindings/leds/common.h.
- If there is no matching LED_FUNCTION available, add a new one.
-
-- color : Color of the LED. Use one of the LED_COLOR_ID_* prefixed definitions
- from the header include/dt-bindings/leds/common.h.
- If there is no matching LED_COLOR_ID available, add a new one.
-
-- function-enumerator: Integer to be used when more than one instance
- of the same function is needed, differing only with
- an ordinal number.
-
-- label : The label for this LED. If omitted, the label is taken from the node
- name (excluding the unit address). It has to uniquely identify
- a device, i.e. no other LED class device can be assigned the same
- label. This property is deprecated - use 'function' and 'color'
- properties instead. function-enumerator has no effect when this
- property is present.
-
-- default-state : The initial state of the LED. Valid values are "on", "off",
- and "keep". If the LED is already on or off and the default-state property is
- set the to same value, then no glitch should be produced where the LED
- momentarily turns off (or on). The "keep" setting will keep the LED at
- whatever its current state is, without producing a glitch. The default is
- off if this property is not present.
-
-- linux,default-trigger : This parameter, if present, is a
- string defining the trigger assigned to the LED. Current triggers are:
- "backlight" - LED will act as a back-light, controlled by the framebuffer
- system
- "default-on" - LED will turn on (but for leds-gpio see "default-state"
- property in Documentation/devicetree/bindings/leds/leds-gpio.txt)
- "heartbeat" - LED "double" flashes at a load average based rate
- "disk-activity" - LED indicates disk activity
- "ide-disk" - LED indicates IDE disk activity (deprecated),
- in new implementations use "disk-activity"
- "timer" - LED flashes at a fixed, configurable rate
- "pattern" - LED alters the brightness for the specified duration with one
- software timer (requires "led-pattern" property)
-
-- led-pattern : Array of integers with default pattern for certain triggers.
- Each trigger may parse this property differently:
- - one-shot : two numbers specifying delay on and delay off (in ms),
- - timer : two numbers specifying delay on and delay off (in ms),
- - pattern : the pattern is given by a series of tuples, of
- brightness and duration (in ms). The exact format is
- described in:
- Documentation/devicetree/bindings/leds/leds-trigger-pattern.txt
-
-
-- led-max-microamp : Maximum LED supply current in microamperes. This property
- can be made mandatory for the board configurations
- introducing a risk of hardware damage in case an excessive
- current is set.
- For flash LED controllers with configurable current this
- property is mandatory for the LEDs in the non-flash modes
- (e.g. torch or indicator).
-
-- panic-indicator : This property specifies that the LED should be used,
- if at all possible, as a panic indicator.
-
-- trigger-sources : List of devices which should be used as a source triggering
- this LED activity. Some LEDs can be related to a specific
- device and should somehow indicate its state. E.g. USB 2.0
- LED may react to device(s) in a USB 2.0 port(s).
- Another common example is switch or router with multiple
- Ethernet ports each of them having its own LED assigned
- (assuming they are not hardwired). In such cases this
- property should contain phandle(s) of related source
- device(s).
- In many cases LED can be related to more than one device
- (e.g. one USB LED vs. multiple USB ports). Each source
- should be represented by a node in the device tree and be
- referenced by a phandle and a set of phandle arguments. A
- length of arguments should be specified by the
- #trigger-source-cells property in the source node.
-
-Required properties for flash LED child nodes:
-- flash-max-microamp : Maximum flash LED supply current in microamperes.
-- flash-max-timeout-us : Maximum timeout in microseconds after which the flash
- LED is turned off.
-
-For controllers that have no configurable current the flash-max-microamp
-property can be omitted.
-For controllers that have no configurable timeout the flash-max-timeout-us
-property can be omitted.
-
-* Trigger source providers
-
-Each trigger source should be represented by a device tree node. It may be e.g.
-a USB port or an Ethernet device.
-
-Required properties for trigger source:
-- #trigger-source-cells : Number of cells in a source trigger. Typically 0 for
- nodes of simple trigger sources (e.g. a specific USB
- port).
-
-* Examples
-
-#include <dt-bindings/leds/common.h>
-
-led-controller@0 {
- compatible = "gpio-leds";
-
- led0 {
- function = LED_FUNCTION_STATUS;
- linux,default-trigger = "heartbeat";
- gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
- };
-
- led1 {
- function = LED_FUNCTION_USB;
- gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
- trigger-sources = <&ohci_port1>, <&ehci_port1>;
- };
-};
-
-led-controller@0 {
- compatible = "maxim,max77693-led";
-
- led {
- function = LED_FUNCTION_FLASH;
- color = <LED_COLOR_ID_WHITE>;
- led-sources = <0>, <1>;
- led-max-microamp = <50000>;
- flash-max-microamp = <320000>;
- flash-max-timeout-us = <500000>;
- };
-};
-
-led-controller@30 {
- compatible = "panasonic,an30259a";
- reg = <0x30>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- led@1 {
- reg = <1>;
- linux,default-trigger = "heartbeat";
- function = LED_FUNCTION_INDICATOR;
- function-enumerator = <1>;
- };
-
- led@2 {
- reg = <2>;
- function = LED_FUNCTION_INDICATOR;
- function-enumerator = <2>;
- };
-
- led@3 {
- reg = <3>;
- function = LED_FUNCTION_INDICATOR;
- function-enumerator = <3>;
- };
-};
+This file has moved to ./common.yaml.
diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml
new file mode 100644
index 000000000000..d97d099b87e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/common.yaml
@@ -0,0 +1,228 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common leds properties
+
+maintainers:
+ - Jacek Anaszewski <jacek.anaszewski@gmail.com>
+ - Pavel Machek <pavel@ucw.cz>
+
+description:
+ LED and flash LED devices provide the same basic functionality as current
+ regulators, but extended with LED and flash LED specific features like
+ blinking patterns, flash timeout, flash faults and external flash strobe mode.
+
+ Many LED devices expose more than one current output that can be connected
+ to one or more discrete LED component. Since the arrangement of connections
+ can influence the way of the LED device initialization, the LED components
+ have to be tightly coupled with the LED device binding. They are represented
+ by child nodes of the parent LED device binding.
+
+properties:
+ led-sources:
+ description:
+ List of device current outputs the LED is connected to. The outputs are
+ identified by the numbers that must be defined in the LED device binding
+ documentation.
+ $ref: /schemas/types.yaml#definitions/uint32-array
+
+ function:
+ description:
+ LED function. Use one of the LED_FUNCTION_* prefixed definitions
+ from the header include/dt-bindings/leds/common.h. If there is no
+ matching LED_FUNCTION available, add a new one.
+ $ref: /schemas/types.yaml#definitions/string
+
+ color:
+ description:
+ Color of the LED. Use one of the LED_COLOR_ID_* prefixed definitions from
+ the header include/dt-bindings/leds/common.h. If there is no matching
+ LED_COLOR_ID available, add a new one.
+ allOf:
+ - $ref: /schemas/types.yaml#definitions/uint32
+ minimum: 0
+ maximum: 8
+
+ function-enumerator:
+ description:
+ Integer to be used when more than one instance of the same function is
+ needed, differing only with an ordinal number.
+ $ref: /schemas/types.yaml#definitions/uint32
+
+ label:
+ description:
+ The label for this LED. If omitted, the label is taken from the node name
+ (excluding the unit address). It has to uniquely identify a device, i.e.
+ no other LED class device can be assigned the same label. This property is
+ deprecated - use 'function' and 'color' properties instead.
+ function-enumerator has no effect when this property is present.
+
+ default-state:
+ description:
+ The initial state of the LED. If the LED is already on or off and the
+ default-state property is set the to same value, then no glitch should be
+ produced where the LED momentarily turns off (or on). The "keep" setting
+ will keep the LED at whatever its current state is, without producing a
+ glitch.
+ allOf:
+ - $ref: /schemas/types.yaml#definitions/string
+ enum:
+ - on
+ - off
+ - keep
+ default: off
+
+ linux,default-trigger:
+ description:
+ This parameter, if present, is a string defining the trigger assigned to
+ the LED.
+ allOf:
+ - $ref: /schemas/types.yaml#definitions/string
+ enum:
+ # LED will act as a back-light, controlled by the framebuffer system
+ - backlight
+ # LED will turn on (but for leds-gpio see "default-state" property in
+ # Documentation/devicetree/bindings/leds/leds-gpio.txt)
+ - default-on
+ # LED "double" flashes at a load average based rate
+ - heartbeat
+ # LED indicates disk activity
+ - disk-activity
+ # LED indicates IDE disk activity (deprecated), in new implementations
+ # use "disk-activity"
+ - ide-disk
+ # LED flashes at a fixed, configurable rate
+ - timer
+ # LED alters the brightness for the specified duration with one software
+ # timer (requires "led-pattern" property)
+ - pattern
+
+ led-pattern:
+ description: |
+ Array of integers with default pattern for certain triggers.
+
+ Each trigger may parse this property differently:
+ - one-shot : two numbers specifying delay on and delay off (in ms),
+ - timer : two numbers specifying delay on and delay off (in ms),
+ - pattern : the pattern is given by a series of tuples, of
+ brightness and duration (in ms). The exact format is
+ described in:
+ Documentation/devicetree/bindings/leds/leds-trigger-pattern.txt
+ allOf:
+ - $ref: /schemas/types.yaml#definitions/uint32-matrix
+ items:
+ minItems: 2
+ maxItems: 2
+
+ led-max-microamp:
+ description:
+ Maximum LED supply current in microamperes. This property can be made
+ mandatory for the board configurations introducing a risk of hardware
+ damage in case an excessive current is set.
+ For flash LED controllers with configurable current this property is
+ mandatory for the LEDs in the non-flash modes (e.g. torch or indicator).
+
+ panic-indicator:
+ description:
+ This property specifies that the LED should be used, if at all possible,
+ as a panic indicator.
+ type: boolean
+
+ trigger-sources:
+ description: |
+ List of devices which should be used as a source triggering this LED
+ activity. Some LEDs can be related to a specific device and should somehow
+ indicate its state. E.g. USB 2.0 LED may react to device(s) in a USB 2.0
+ port(s).
+ Another common example is switch or router with multiple Ethernet ports
+ each of them having its own LED assigned (assuming they are not
+ hardwired). In such cases this property should contain phandle(s) of
+ related source device(s).
+ In many cases LED can be related to more than one device (e.g. one USB LED
+ vs. multiple USB ports). Each source should be represented by a node in
+ the device tree and be referenced by a phandle and a set of phandle
+ arguments. A length of arguments should be specified by the
+ #trigger-source-cells property in the source node.
+ $ref: /schemas/types.yaml#definitions/phandle-array
+
+ # Required properties for flash LED child nodes:
+ flash-max-microamp:
+ description:
+ Maximum flash LED supply current in microamperes. Required for flash LED
+ nodes with configurable current.
+
+ flash-max-timeout-us:
+ description:
+ Maximum timeout in microseconds after which the flash LED is turned off.
+ Required for flash LED nodes with configurable timeout.
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
+
+ led-controller {
+ compatible = "gpio-leds";
+
+ led0 {
+ function = LED_FUNCTION_STATUS;
+ linux,default-trigger = "heartbeat";
+ gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
+ };
+
+ led1 {
+ function = LED_FUNCTION_USB;
+ gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+ trigger-sources = <&ohci_port1>, <&ehci_port1>;
+ };
+ };
+
+ led-controller@0 {
+ compatible = "maxim,max77693-led";
+ reg = <0 0x100>;
+
+ led {
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ led-sources = <0>, <1>;
+ led-max-microamp = <50000>;
+ flash-max-microamp = <320000>;
+ flash-max-timeout-us = <500000>;
+ };
+ };
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@30 {
+ compatible = "panasonic,an30259a";
+ reg = <0x30>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@1 {
+ reg = <1>;
+ linux,default-trigger = "heartbeat";
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <1>;
+ };
+
+ led@2 {
+ reg = <2>;
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <2>;
+ };
+
+ led@3 {
+ reg = <3>;
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <3>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt b/Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt
index 21882c8d4b0c..83ff1b4d70a6 100644
--- a/Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt
+++ b/Documentation/devicetree/bindings/leds/irled/spi-ir-led.txt
@@ -8,7 +8,7 @@ Required properties:
- compatible: should be "ir-spi-led".
Optional properties:
- - duty-cycle: 8 bit balue that represents the percentage of one period
+ - duty-cycle: 8 bit value that represents the percentage of one period
in which the signal is active. It can be 50, 60, 70, 75, 80 or 90.
- led-active-low: boolean value that specifies whether the output is
negated with a NOT gate.
diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt
deleted file mode 100644
index d21281b63d38..000000000000
--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt
+++ /dev/null
@@ -1,75 +0,0 @@
-LEDs connected to GPIO lines
-
-Required properties:
-- compatible : should be "gpio-leds".
-
-Each LED is represented as a sub-node of the gpio-leds device. Each
-node's name represents the name of the corresponding LED.
-
-LED sub-node properties:
-- gpios : Should specify the LED's GPIO, see "gpios property" in
- Documentation/devicetree/bindings/gpio/gpio.txt. Active low LEDs should be
- indicated using flags in the GPIO specifier.
-- function : (optional)
- see Documentation/devicetree/bindings/leds/common.txt
-- color : (optional)
- see Documentation/devicetree/bindings/leds/common.txt
-- label : (optional)
- see Documentation/devicetree/bindings/leds/common.txt (deprecated)
-- linux,default-trigger : (optional)
- see Documentation/devicetree/bindings/leds/common.txt
-- default-state: (optional) The initial state of the LED.
- see Documentation/devicetree/bindings/leds/common.txt
-- retain-state-suspended: (optional) The suspend state can be retained.Such
- as charge-led gpio.
-- retain-state-shutdown: (optional) Retain the state of the LED on shutdown.
- Useful in BMC systems, for example when the BMC is rebooted while the host
- remains up.
-- panic-indicator : (optional)
- see Documentation/devicetree/bindings/leds/common.txt
-
-Examples:
-
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/leds/common.h>
-
-leds {
- compatible = "gpio-leds";
- led0 {
- gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
- linux,default-trigger = "disk-activity";
- function = LED_FUNCTION_DISK;
- };
-
- led1 {
- gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
- /* Keep LED on if BIOS detected hardware fault */
- default-state = "keep";
- function = LED_FUNCTION_FAULT;
- };
-};
-
-run-control {
- compatible = "gpio-leds";
- led0 {
- gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>;
- color = <LED_COLOR_ID_RED>;
- default-state = "off";
- };
- led1 {
- gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>;
- color = <LED_COLOR_ID_GREEN>;
- default-state = "on";
- };
-};
-
-leds {
- compatible = "gpio-leds";
-
- led0 {
- gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
- linux,default-trigger = "max8903-charger-charging";
- retain-state-suspended;
- function = LED_FUNCTION_CHARGE;
- };
-};
diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.yaml b/Documentation/devicetree/bindings/leds/leds-gpio.yaml
new file mode 100644
index 000000000000..0e75b185dd19
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-gpio.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LEDs connected to GPIO lines
+
+maintainers:
+ - Jacek Anaszewski <jacek.anaszewski@gmail.com>
+ - Pavel Machek <pavel@ucw.cz>
+
+description:
+ Each LED is represented as a sub-node of the gpio-leds device. Each
+ node's name represents the name of the corresponding LED.
+
+properties:
+ compatible:
+ const: gpio-leds
+
+patternProperties:
+ # The first form is preferred, but fall back to just 'led' anywhere in the
+ # node name to at least catch some child nodes.
+ "(^led-[0-9a-f]$|led)":
+ type: object
+
+ allOf:
+ - $ref: common.yaml#
+
+ properties:
+ gpios:
+ maxItems: 1
+
+ retain-state-suspended:
+ description:
+ The suspend state can be retained.Such as charge-led gpio.
+ type: boolean
+
+ retain-state-shutdown:
+ description:
+ Retain the state of the LED on shutdown. Useful in BMC systems, for
+ example when the BMC is rebooted while the host remains up.
+ type: boolean
+
+ required:
+ - gpios
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
+
+ leds {
+ compatible = "gpio-leds";
+ led-0 {
+ gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
+ linux,default-trigger = "disk-activity";
+ function = LED_FUNCTION_DISK;
+ };
+
+ led-1 {
+ gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
+ /* Keep LED on if BIOS detected hardware fault */
+ default-state = "keep";
+ function = LED_FUNCTION_FAULT;
+ };
+ };
+
+ run-control {
+ compatible = "gpio-leds";
+ led-0 {
+ gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_RED>;
+ default-state = "off";
+ };
+ led-1 {
+ gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_GREEN>;
+ default-state = "on";
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/leds/trigger-source.yaml b/Documentation/devicetree/bindings/leds/trigger-source.yaml
new file mode 100644
index 000000000000..0618003e40bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/trigger-source.yaml
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/trigger-source.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Trigger source providers
+
+maintainers:
+ - Jacek Anaszewski <jacek.anaszewski@gmail.com>
+ - Pavel Machek <pavel@ucw.cz>
+
+description:
+ Each trigger source provider should be represented by a device tree node. It
+ may be e.g. a USB port or an Ethernet device.
+
+properties:
+ '#trigger-source-cells':
+ description:
+ Number of cells in a source trigger. Typically 0 for nodes of simple
+ trigger sources (e.g. a specific USB port).
+ enum: [ 0, 1 ]
+
+...
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
new file mode 100644
index 000000000000..526593c8c614
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/allwinner,sun4i-a10-video-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 Video Engine Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-video-engine
+ - allwinner,sun5i-a13-video-engine
+ - allwinner,sun7i-a20-video-engine
+ - allwinner,sun8i-a33-video-engine
+ - allwinner,sun8i-h3-video-engine
+ - allwinner,sun50i-a64-video-engine
+ - allwinner,sun50i-h5-video-engine
+ - allwinner,sun50i-h6-video-engine
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+ - description: RAM Clock
+
+ clock-names:
+ items:
+ - const: ahb
+ - const: mod
+ - const: ram
+
+ resets:
+ maxItems: 1
+
+ allwinner,sram:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: Phandle to the device SRAM
+
+ memory-region:
+ description:
+ CMA pool to use for buffers allocation instead of the default
+ CMA pool.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - allwinner,sram
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/sun7i-a20-ccu.h>
+ #include <dt-bindings/reset/sun4i-a10-ccu.h>
+
+ video-codec@1c0e000 {
+ compatible = "allwinner,sun7i-a20-video-engine";
+ reg = <0x01c0e000 0x1000>;
+ interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_AHB_VE>, <&ccu CLK_VE>,
+ <&ccu CLK_DRAM_VE>;
+ clock-names = "ahb", "mod", "ram";
+ resets = <&ccu RST_VE>;
+ allwinner,sram = <&ve_sram 1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
new file mode 100644
index 000000000000..1fd9b5532a21
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/allwinner,sun6i-a31-csi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 CMOS Sensor Interface (CSI) Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun6i-a31-csi
+ - allwinner,sun8i-a83t-csi
+ - allwinner,sun8i-h3-csi
+ - allwinner,sun8i-v3s-csi
+ - allwinner,sun50i-a64-csi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+ - description: DRAM Clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: mod
+ - const: ram
+
+ resets:
+ maxItems: 1
+
+ # See ./video-interfaces.txt for details
+ port:
+ type: object
+
+ properties:
+ endpoint:
+ type: object
+
+ properties:
+ remote-endpoint: true
+
+ bus-width:
+ enum: [ 8, 10, 12, 16 ]
+
+ pclk-sample: true
+ hsync-active: true
+ vsync-active: true
+
+ required:
+ - bus-width
+ - remote-endpoint
+
+ required:
+ - endpoint
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/sun8i-v3s-ccu.h>
+ #include <dt-bindings/reset/sun8i-v3s-ccu.h>
+
+ csi1: csi@1cb4000 {
+ compatible = "allwinner,sun8i-v3s-csi";
+ reg = <0x01cb4000 0x1000>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_CSI>,
+ <&ccu CLK_CSI1_SCLK>,
+ <&ccu CLK_DRAM_CSI>;
+ clock-names = "bus",
+ "mod",
+ "ram";
+ resets = <&ccu RST_BUS_CSI>;
+
+ port {
+ /* Parallel bus endpoint */
+ csi1_ep: endpoint {
+ remote-endpoint = <&adv7611_ep>;
+ bus-width = <16>;
+
+ /*
+ * If hsync-active/vsync-active are missing,
+ * embedded BT.656 sync is used.
+ */
+ hsync-active = <0>; /* Active low */
+ vsync-active = <0>; /* Active low */
+ pclk-sample = <1>; /* Rising */
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/media/cedrus.txt b/Documentation/devicetree/bindings/media/cedrus.txt
deleted file mode 100644
index 20c82fb0c343..000000000000
--- a/Documentation/devicetree/bindings/media/cedrus.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-Device-tree bindings for the VPU found in Allwinner SoCs, referred to as the
-Video Engine (VE) in Allwinner literature.
-
-The VPU can only access the first 256 MiB of DRAM, that are DMA-mapped starting
-from the DRAM base. This requires specific memory allocation and handling.
-
-Required properties:
-- compatible : must be one of the following compatibles:
- - "allwinner,sun4i-a10-video-engine"
- - "allwinner,sun5i-a13-video-engine"
- - "allwinner,sun7i-a20-video-engine"
- - "allwinner,sun8i-a33-video-engine"
- - "allwinner,sun8i-h3-video-engine"
- - "allwinner,sun50i-a64-video-engine"
- - "allwinner,sun50i-h5-video-engine"
- - "allwinner,sun50i-h6-video-engine"
-- reg : register base and length of VE;
-- clocks : list of clock specifiers, corresponding to entries in
- the clock-names property;
-- clock-names : should contain "ahb", "mod" and "ram" entries;
-- resets : phandle for reset;
-- interrupts : VE interrupt number;
-- allwinner,sram : SRAM region to use with the VE.
-
-Optional properties:
-- memory-region : CMA pool to use for buffers allocation instead of the
- default CMA pool.
-
-Example:
-
-reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- /* Address must be kept in the lower 256 MiBs of DRAM for VE. */
- cma_pool: default-pool {
- compatible = "shared-dma-pool";
- size = <0x6000000>;
- alloc-ranges = <0x4a000000 0x6000000>;
- reusable;
- linux,cma-default;
- };
-};
-
-video-codec@1c0e000 {
- compatible = "allwinner,sun7i-a20-video-engine";
- reg = <0x01c0e000 0x1000>;
-
- clocks = <&ccu CLK_AHB_VE>, <&ccu CLK_VE>,
- <&ccu CLK_DRAM_VE>;
- clock-names = "ahb", "mod", "ram";
-
- resets = <&ccu RST_VE>;
- interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
- allwinner,sram = <&ve_sram 1>;
-};
diff --git a/Documentation/devicetree/bindings/media/exynos-jpeg-codec.txt b/Documentation/devicetree/bindings/media/exynos-jpeg-codec.txt
index 38941db23dd2..ce9a22689e53 100644
--- a/Documentation/devicetree/bindings/media/exynos-jpeg-codec.txt
+++ b/Documentation/devicetree/bindings/media/exynos-jpeg-codec.txt
@@ -1,4 +1,4 @@
-Samsung S5P/EXYNOS SoC series JPEG codec
+Samsung S5P/Exynos SoC series JPEG codec
Required properties:
diff --git a/Documentation/devicetree/bindings/media/exynos5-gsc.txt b/Documentation/devicetree/bindings/media/exynos5-gsc.txt
index bc963a6d305a..1872688fa408 100644
--- a/Documentation/devicetree/bindings/media/exynos5-gsc.txt
+++ b/Documentation/devicetree/bindings/media/exynos5-gsc.txt
@@ -1,6 +1,6 @@
* Samsung Exynos5 G-Scaler device
-G-Scaler is used for scaling and color space conversion on EXYNOS5 SoCs.
+G-Scaler is used for scaling and color space conversion on Exynos5 SoCs.
Required properties:
- compatible: should be one of
diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.txt b/Documentation/devicetree/bindings/media/renesas,ceu.txt
deleted file mode 100644
index 3e2a2652eb19..000000000000
--- a/Documentation/devicetree/bindings/media/renesas,ceu.txt
+++ /dev/null
@@ -1,86 +0,0 @@
-Renesas Capture Engine Unit (CEU)
-----------------------------------------------
-
-The Capture Engine Unit is the image capture interface found in the Renesas
-SH Mobile, R-Mobile and RZ SoCs.
-
-The interface supports a single parallel input with data bus width of 8 or 16
-bits.
-
-Required properties:
-- compatible: Shall be one of the following values:
- "renesas,r7s72100-ceu" for CEU units found in RZ/A1H and RZ/A1M SoCs
- "renesas,r8a7740-ceu" for CEU units found in R-Mobile A1 R8A7740 SoCs
-- reg: Registers address base and size.
-- interrupts: The interrupt specifier.
-
-The CEU supports a single parallel input and should contain a single 'port'
-subnode with a single 'endpoint'. Connection to input devices are modeled
-according to the video interfaces OF bindings specified in:
-[1] Documentation/devicetree/bindings/media/video-interfaces.txt
-
-Optional endpoint properties applicable to parallel input bus described in
-the above mentioned "video-interfaces.txt" file are supported.
-
-- hsync-active: See [1] for description. If property is not present,
- default is active high.
-- vsync-active: See [1] for description. If property is not present,
- default is active high.
-- bus-width: See [1] for description. Accepted values are '8' and '16'.
- If property is not present, default is '8'.
-- field-even-active: See [1] for description. If property is not present,
- an even field is identified by a logic 0 (active-low signal).
-
-Example:
-
-The example describes the connection between the Capture Engine Unit and an
-OV7670 image sensor connected to i2c1 interface.
-
-ceu: ceu@e8210000 {
- reg = <0xe8210000 0x209c>;
- compatible = "renesas,r7s72100-ceu";
- interrupts = <GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&vio_pins>;
-
- status = "okay";
-
- port {
- ceu_in: endpoint {
- remote-endpoint = <&ov7670_out>;
-
- hsync-active = <1>;
- vsync-active = <0>;
- };
- };
-};
-
-i2c1: i2c@fcfee400 {
- pinctrl-names = "default";
- pinctrl-0 = <&i2c1_pins>;
-
- status = "okay";
-
- clock-frequency = <100000>;
-
- ov7670: camera@21 {
- compatible = "ovti,ov7670";
- reg = <0x21>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&vio_pins>;
-
- reset-gpios = <&port3 11 GPIO_ACTIVE_LOW>;
- powerdown-gpios = <&port3 12 GPIO_ACTIVE_HIGH>;
-
- port {
- ov7670_out: endpoint {
- remote-endpoint = <&ceu_in>;
-
- hsync-active = <1>;
- vsync-active = <0>;
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.yaml b/Documentation/devicetree/bindings/media/renesas,ceu.yaml
new file mode 100644
index 000000000000..8e9251a0f9ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,ceu.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/renesas,ceu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas Capture Engine Unit (CEU) Bindings
+
+maintainers:
+ - Jacopo Mondi <jacopo+renesas@jmondi.org>
+ - linux-renesas-soc@vger.kernel.org
+
+description: |+
+ The Capture Engine Unit is the image capture interface found in the Renesas SH
+ Mobile, R-Mobile and RZ SoCs. The interface supports a single parallel input
+ with data bus width of 8 or 16 bits.
+
+properties:
+ compatible:
+ enum:
+ - renesas,r7s72100-ceu
+ - renesas,r8a7740-ceu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ port:
+ type: object
+ additionalProperties: false
+
+ properties:
+ endpoint:
+ type: object
+ additionalProperties: false
+
+ # Properties described in
+ # Documentation/devicetree/bindings/media/video-interfaces.txt
+ properties:
+ remote-endpoint: true
+ hsync-active: true
+ vsync-active: true
+ field-even-active: false
+ bus-width:
+ enum: [8, 16]
+ default: 8
+
+ required:
+ - remote-endpoint
+
+ required:
+ - endpoint
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - port
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ ceu: ceu@e8210000 {
+ reg = <0xe8210000 0x209c>;
+ compatible = "renesas,r7s72100-ceu";
+ interrupts = <GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH>;
+
+ port {
+ ceu_in: endpoint {
+ remote-endpoint = <&ov7670_out>;
+ hsync-active = <1>;
+ vsync-active = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/renesas,csi2.txt b/Documentation/devicetree/bindings/media/renesas,csi2.txt
deleted file mode 100644
index 2da6f60b2b56..000000000000
--- a/Documentation/devicetree/bindings/media/renesas,csi2.txt
+++ /dev/null
@@ -1,107 +0,0 @@
-Renesas R-Car MIPI CSI-2
-------------------------
-
-The R-Car CSI-2 receiver device provides MIPI CSI-2 capabilities for the
-Renesas R-Car and RZ/G2 family of devices. It is used in conjunction with the
-R-Car VIN module, which provides the video capture capabilities.
-
-Mandatory properties
---------------------
- - compatible: Must be one or more of the following
- - "renesas,r8a774a1-csi2" for the R8A774A1 device.
- - "renesas,r8a774b1-csi2" for the R8A774B1 device.
- - "renesas,r8a774c0-csi2" for the R8A774C0 device.
- - "renesas,r8a7795-csi2" for the R8A7795 device.
- - "renesas,r8a7796-csi2" for the R8A7796 device.
- - "renesas,r8a77965-csi2" for the R8A77965 device.
- - "renesas,r8a77970-csi2" for the R8A77970 device.
- - "renesas,r8a77980-csi2" for the R8A77980 device.
- - "renesas,r8a77990-csi2" for the R8A77990 device.
-
- - reg: the register base and size for the device registers
- - interrupts: the interrupt for the device
- - clocks: A phandle + clock specifier for the module clock
- - resets: A phandle + reset specifier for the module reset
-
-The device node shall contain two 'port' child nodes according to the
-bindings defined in Documentation/devicetree/bindings/media/
-video-interfaces.txt. port@0 shall connect to the CSI-2 source. port@1
-shall connect to all the R-Car VIN modules that have a hardware
-connection to the CSI-2 receiver.
-
-- port@0- Video source (mandatory)
- - endpoint@0 - sub-node describing the endpoint that is the video source
-
-- port@1 - VIN instances (optional)
- - One endpoint sub-node for every R-Car VIN instance which is connected
- to the R-Car CSI-2 receiver.
-
-Example:
-
- csi20: csi2@fea80000 {
- compatible = "renesas,r8a7796-csi2";
- reg = <0 0xfea80000 0 0x10000>;
- interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 714>;
- power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
- resets = <&cpg 714>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- #address-cells = <1>;
- #size-cells = <0>;
-
- reg = <0>;
-
- csi20_in: endpoint@0 {
- reg = <0>;
- clock-lanes = <0>;
- data-lanes = <1>;
- remote-endpoint = <&adv7482_txb>;
- };
- };
-
- port@1 {
- #address-cells = <1>;
- #size-cells = <0>;
-
- reg = <1>;
-
- csi20vin0: endpoint@0 {
- reg = <0>;
- remote-endpoint = <&vin0csi20>;
- };
- csi20vin1: endpoint@1 {
- reg = <1>;
- remote-endpoint = <&vin1csi20>;
- };
- csi20vin2: endpoint@2 {
- reg = <2>;
- remote-endpoint = <&vin2csi20>;
- };
- csi20vin3: endpoint@3 {
- reg = <3>;
- remote-endpoint = <&vin3csi20>;
- };
- csi20vin4: endpoint@4 {
- reg = <4>;
- remote-endpoint = <&vin4csi20>;
- };
- csi20vin5: endpoint@5 {
- reg = <5>;
- remote-endpoint = <&vin5csi20>;
- };
- csi20vin6: endpoint@6 {
- reg = <6>;
- remote-endpoint = <&vin6csi20>;
- };
- csi20vin7: endpoint@7 {
- reg = <7>;
- remote-endpoint = <&vin7csi20>;
- };
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/media/renesas,csi2.yaml b/Documentation/devicetree/bindings/media/renesas,csi2.yaml
new file mode 100644
index 000000000000..408442a0c389
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,csi2.yaml
@@ -0,0 +1,198 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2020 Renesas Electronics Corp.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/renesas,csi2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car MIPI CSI-2 receiver
+
+maintainers:
+ - Niklas Söderlund <niklas.soderlund@ragnatech.se>
+
+description:
+ The R-Car CSI-2 receiver device provides MIPI CSI-2 capabilities for the
+ Renesas R-Car and RZ/G2 family of devices. It is used in conjunction with the
+ R-Car VIN module, which provides the video capture capabilities.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - renesas,r8a774a1-csi2 # RZ/G2M
+ - renesas,r8a774b1-csi2 # RZ/G2N
+ - renesas,r8a774c0-csi2 # RZ/G2E
+ - renesas,r8a7795-csi2 # R-Car H3
+ - renesas,r8a7796-csi2 # R-Car M3-W
+ - renesas,r8a77965-csi2 # R-Car M3-N
+ - renesas,r8a77970-csi2 # R-Car V3M
+ - renesas,r8a77980-csi2 # R-Car V3H
+ - renesas,r8a77990-csi2 # R-Car E3
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ ports:
+ type: object
+ description:
+ A node containing input and output port nodes with endpoint definitions
+ as documented in
+ Documentation/devicetree/bindings/media/video-interfaces.txt
+
+ properties:
+ port@0:
+ type: object
+ description:
+ Input port node, single endpoint describing the CSI-2 transmitter.
+
+ properties:
+ reg:
+ const: 0
+
+ endpoint:
+ type: object
+
+ properties:
+ clock-lanes:
+ maxItems: 1
+
+ data-lanes:
+ maxItems: 1
+
+ remote-endpoint: true
+
+ required:
+ - clock-lanes
+ - data-lanes
+ - remote-endpoint
+
+ additionalProperties: false
+
+ additionalProperties: false
+
+ port@1:
+ type: object
+ description:
+ Output port node, multiple endpoints describing all the R-Car VIN
+ modules connected the CSI-2 receiver.
+
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ reg:
+ const: 1
+
+ patternProperties:
+ "^endpoint@[0-9a-f]$":
+ type: object
+
+ properties:
+ reg:
+ maxItems: 1
+
+ remote-endpoint: true
+
+ required:
+ - reg
+ - remote-endpoint
+
+ additionalProperties: false
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - power-domains
+ - resets
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7796-cpg-mssr.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/r8a7796-sysc.h>
+
+ csi20: csi2@fea80000 {
+ compatible = "renesas,r8a7796-csi2";
+ reg = <0 0xfea80000 0 0x10000>;
+ interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 714>;
+ power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
+ resets = <&cpg 714>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ csi20_in: endpoint {
+ clock-lanes = <0>;
+ data-lanes = <1>;
+ remote-endpoint = <&adv7482_txb>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg = <1>;
+
+ csi20vin0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&vin0csi20>;
+ };
+ csi20vin1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&vin1csi20>;
+ };
+ csi20vin2: endpoint@2 {
+ reg = <2>;
+ remote-endpoint = <&vin2csi20>;
+ };
+ csi20vin3: endpoint@3 {
+ reg = <3>;
+ remote-endpoint = <&vin3csi20>;
+ };
+ csi20vin4: endpoint@4 {
+ reg = <4>;
+ remote-endpoint = <&vin4csi20>;
+ };
+ csi20vin5: endpoint@5 {
+ reg = <5>;
+ remote-endpoint = <&vin5csi20>;
+ };
+ csi20vin6: endpoint@6 {
+ reg = <6>;
+ remote-endpoint = <&vin6csi20>;
+ };
+ csi20vin7: endpoint@7 {
+ reg = <7>;
+ remote-endpoint = <&vin7csi20>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/samsung-fimc.txt b/Documentation/devicetree/bindings/media/samsung-fimc.txt
index 48c599dacbdf..f91b9dc80eb3 100644
--- a/Documentation/devicetree/bindings/media/samsung-fimc.txt
+++ b/Documentation/devicetree/bindings/media/samsung-fimc.txt
@@ -1,4 +1,4 @@
-Samsung S5P/EXYNOS SoC Camera Subsystem (FIMC)
+Samsung S5P/Exynos SoC Camera Subsystem (FIMC)
----------------------------------------------
The S5P/Exynos SoC Camera subsystem comprises of multiple sub-devices
diff --git a/Documentation/devicetree/bindings/media/samsung-mipi-csis.txt b/Documentation/devicetree/bindings/media/samsung-mipi-csis.txt
index be45f0b1a449..a4149c9434ea 100644
--- a/Documentation/devicetree/bindings/media/samsung-mipi-csis.txt
+++ b/Documentation/devicetree/bindings/media/samsung-mipi-csis.txt
@@ -1,4 +1,4 @@
-Samsung S5P/EXYNOS SoC series MIPI CSI-2 receiver (MIPI CSIS)
+Samsung S5P/Exynos SoC series MIPI CSI-2 receiver (MIPI CSIS)
-------------------------------------------------------------
Required properties:
diff --git a/Documentation/devicetree/bindings/media/sun6i-csi.txt b/Documentation/devicetree/bindings/media/sun6i-csi.txt
deleted file mode 100644
index a2e3e56f0257..000000000000
--- a/Documentation/devicetree/bindings/media/sun6i-csi.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-Allwinner V3s Camera Sensor Interface
--------------------------------------
-
-Allwinner V3s SoC features a CSI module(CSI1) with parallel interface.
-
-Required properties:
- - compatible: value must be one of:
- * "allwinner,sun6i-a31-csi"
- * "allwinner,sun8i-a83t-csi"
- * "allwinner,sun8i-h3-csi"
- * "allwinner,sun8i-v3s-csi"
- * "allwinner,sun50i-a64-csi"
- - reg: base address and size of the memory-mapped region.
- - interrupts: interrupt associated to this IP
- - clocks: phandles to the clocks feeding the CSI
- * bus: the CSI interface clock
- * mod: the CSI module clock
- * ram: the CSI DRAM clock
- - clock-names: the clock names mentioned above
- - resets: phandles to the reset line driving the CSI
-
-The CSI node should contain one 'port' child node with one child 'endpoint'
-node, according to the bindings defined in
-Documentation/devicetree/bindings/media/video-interfaces.txt.
-
-Endpoint node properties for CSI
----------------------------------
-See the video-interfaces.txt for a detailed description of these properties.
-- remote-endpoint : (required) a phandle to the bus receiver's endpoint
- node
-- bus-width: : (required) must be 8, 10, 12 or 16
-- pclk-sample : (optional) (default: sample on falling edge)
-- hsync-active : (required; parallel-only)
-- vsync-active : (required; parallel-only)
-
-Example:
-
-csi1: csi@1cb4000 {
- compatible = "allwinner,sun8i-v3s-csi";
- reg = <0x01cb4000 0x1000>;
- interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&ccu CLK_BUS_CSI>,
- <&ccu CLK_CSI1_SCLK>,
- <&ccu CLK_DRAM_CSI>;
- clock-names = "bus", "mod", "ram";
- resets = <&ccu RST_BUS_CSI>;
-
- port {
- /* Parallel bus endpoint */
- csi1_ep: endpoint {
- remote-endpoint = <&adv7611_ep>;
- bus-width = <16>;
-
- /* If hsync-active/vsync-active are missing,
- embedded BT.656 sync is used */
- hsync-active = <0>; /* Active low */
- vsync-active = <0>; /* Active low */
- pclk-sample = <1>; /* Rising */
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
new file mode 100644
index 000000000000..c9e6c22cb5be
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/fsl/imx8m-ddrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX8M DDR Controller
+
+maintainers:
+ - Leonard Crestez <leonard.crestez@nxp.com>
+
+description:
+ The DDRC block is integrated in i.MX8M for interfacing with DDR based
+ memories.
+
+ It supports switching between different frequencies at runtime but during
+ this process RAM itself becomes briefly inaccessible so actual frequency
+ switching is implemented by TF-A code which runs from a SRAM area.
+
+ The Linux driver for the DDRC doesn't even map registers (they're included
+ for the sake of "describing hardware"), it mostly just exposes firmware
+ capabilities through standard Linux mechanism like devfreq and OPP tables.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - fsl,imx8mn-ddrc
+ - fsl,imx8mm-ddrc
+ - fsl,imx8mq-ddrc
+ - const: fsl,imx8m-ddrc
+
+ reg:
+ maxItems: 1
+ description:
+ Base address and size of DDRC CTL area.
+ This is not currently mapped by the imx8m-ddrc driver.
+
+ clocks:
+ maxItems: 4
+
+ clock-names:
+ items:
+ - const: core
+ - const: pll
+ - const: alt
+ - const: apb
+
+ operating-points-v2: true
+ opp-table: true
+
+required:
+ - reg
+ - compatible
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8mm-clock.h>
+ ddrc: memory-controller@3d400000 {
+ compatible = "fsl,imx8mm-ddrc", "fsl,imx8m-ddrc";
+ reg = <0x3d400000 0x400000>;
+ clock-names = "core", "pll", "alt", "apb";
+ clocks = <&clk IMX8MM_CLK_DRAM_CORE>,
+ <&clk IMX8MM_DRAM_PLL>,
+ <&clk IMX8MM_CLK_DRAM_ALT>,
+ <&clk IMX8MM_CLK_DRAM_APB>;
+ operating-points-v2 = <&ddrc_opp_table>;
+ };
diff --git a/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml b/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
new file mode 100644
index 000000000000..d131759ccaf3
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
@@ -0,0 +1,219 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/allwinner,sun6i-a31-prcm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 PRCM Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ compatible:
+ const: allwinner,sun6i-a31-prcm
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ "^.*_(clk|rst)$":
+ type: object
+
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-mod0-clk
+ - allwinner,sun6i-a31-apb0-clk
+ - allwinner,sun6i-a31-apb0-gates-clk
+ - allwinner,sun6i-a31-ar100-clk
+ - allwinner,sun6i-a31-clock-reset
+ - fixed-factor-clock
+
+ allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-apb0-clk
+
+ then:
+ properties:
+ "#clock-cells":
+ const: 0
+
+ # Already checked in the main schema
+ compatible: true
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+ phandle: true
+
+ required:
+ - "#clock-cells"
+ - compatible
+ - clocks
+ - clock-output-names
+
+ additionalProperties: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-apb0-gates-clk
+
+ then:
+ properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ This additional argument passed to that clock is the
+ offset of the bit controlling this particular gate in
+ the register.
+
+ # Already checked in the main schema
+ compatible: true
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 32
+
+ phandle: true
+
+ required:
+ - "#clock-cells"
+ - compatible
+ - clocks
+ - clock-output-names
+
+ additionalProperties: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-ar100-clk
+
+ then:
+ properties:
+ "#clock-cells":
+ const: 0
+
+ # Already checked in the main schema
+ compatible: true
+
+ clocks:
+ maxItems: 4
+ description: >
+ The parent order must match the hardware programming
+ order.
+
+ clock-output-names:
+ maxItems: 1
+
+ phandle: true
+
+ required:
+ - "#clock-cells"
+ - compatible
+ - clocks
+ - clock-output-names
+
+ additionalProperties: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-clock-reset
+
+ then:
+ properties:
+ "#reset-cells":
+ const: 1
+
+ # Already checked in the main schema
+ compatible: true
+
+ phandle: true
+
+ required:
+ - "#reset-cells"
+ - compatible
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun6i-a31-ccu.h>
+
+ prcm@1f01400 {
+ compatible = "allwinner,sun6i-a31-prcm";
+ reg = <0x01f01400 0x200>;
+
+ ar100: ar100_clk {
+ compatible = "allwinner,sun6i-a31-ar100-clk";
+ #clock-cells = <0>;
+ clocks = <&rtc 0>, <&osc24M>,
+ <&ccu CLK_PLL_PERIPH>,
+ <&ccu CLK_PLL_PERIPH>;
+ clock-output-names = "ar100";
+ };
+
+ ahb0: ahb0_clk {
+ compatible = "fixed-factor-clock";
+ #clock-cells = <0>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ clocks = <&ar100>;
+ clock-output-names = "ahb0";
+ };
+
+ apb0: apb0_clk {
+ compatible = "allwinner,sun6i-a31-apb0-clk";
+ #clock-cells = <0>;
+ clocks = <&ahb0>;
+ clock-output-names = "apb0";
+ };
+
+ apb0_gates: apb0_gates_clk {
+ compatible = "allwinner,sun6i-a31-apb0-gates-clk";
+ #clock-cells = <1>;
+ clocks = <&apb0>;
+ clock-output-names = "apb0_pio", "apb0_ir",
+ "apb0_timer", "apb0_p2wi",
+ "apb0_uart", "apb0_1wire",
+ "apb0_i2c";
+ };
+
+ ir_clk: ir_clk {
+ #clock-cells = <0>;
+ compatible = "allwinner,sun4i-a10-mod0-clk";
+ clocks = <&rtc 0>, <&osc24M>;
+ clock-output-names = "ir";
+ };
+
+ apb0_rst: apb0_rst {
+ compatible = "allwinner,sun6i-a31-clock-reset";
+ #reset-cells = <1>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml b/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml
new file mode 100644
index 000000000000..aa5e683b236c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml
@@ -0,0 +1,200 @@
+# SPDX-License-Identifier: GPL-2.0+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/allwinner,sun8i-a23-prcm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A23 PRCM Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+properties:
+ compatible:
+ const: allwinner,sun8i-a23-prcm
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ "^.*(clk|rst|codec).*$":
+ type: object
+
+ properties:
+ compatible:
+ enum:
+ - fixed-factor-clock
+ - allwinner,sun8i-a23-apb0-clk
+ - allwinner,sun8i-a23-apb0-gates-clk
+ - allwinner,sun6i-a31-clock-reset
+ - allwinner,sun8i-a23-codec-analog
+
+ required:
+ - compatible
+
+ allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-a23-apb0-clk
+
+ then:
+ properties:
+ "#clock-cells":
+ const: 0
+
+ # Already checked in the main schema
+ compatible: true
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ maxItems: 1
+
+ phandle: true
+
+ required:
+ - "#clock-cells"
+ - compatible
+ - clocks
+ - clock-output-names
+
+ additionalProperties: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-a23-apb0-gates-clk
+
+ then:
+ properties:
+ "#clock-cells":
+ const: 1
+ description: >
+ This additional argument passed to that clock is the
+ offset of the bit controlling this particular gate in
+ the register.
+
+ # Already checked in the main schema
+ compatible: true
+
+ clocks:
+ maxItems: 1
+
+ clock-output-names:
+ minItems: 1
+ maxItems: 32
+
+ phandle: true
+
+ required:
+ - "#clock-cells"
+ - compatible
+ - clocks
+ - clock-output-names
+
+ additionalProperties: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun6i-a31-clock-reset
+
+ then:
+ properties:
+ "#reset-cells":
+ const: 1
+
+ # Already checked in the main schema
+ compatible: true
+
+ phandle: true
+
+ required:
+ - "#reset-cells"
+ - compatible
+
+ additionalProperties: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-a23-codec-analog
+
+ then:
+ properties:
+ # Already checked in the main schema
+ compatible: true
+
+ phandle: true
+
+ required:
+ - compatible
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ prcm@1f01400 {
+ compatible = "allwinner,sun8i-a23-prcm";
+ reg = <0x01f01400 0x200>;
+
+ ar100: ar100_clk {
+ compatible = "fixed-factor-clock";
+ #clock-cells = <0>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ clocks = <&osc24M>;
+ clock-output-names = "ar100";
+ };
+
+ ahb0: ahb0_clk {
+ compatible = "fixed-factor-clock";
+ #clock-cells = <0>;
+ clock-div = <1>;
+ clock-mult = <1>;
+ clocks = <&ar100>;
+ clock-output-names = "ahb0";
+ };
+
+ apb0: apb0_clk {
+ compatible = "allwinner,sun8i-a23-apb0-clk";
+ #clock-cells = <0>;
+ clocks = <&ahb0>;
+ clock-output-names = "apb0";
+ };
+
+ apb0_gates: apb0_gates_clk {
+ compatible = "allwinner,sun8i-a23-apb0-gates-clk";
+ #clock-cells = <1>;
+ clocks = <&apb0>;
+ clock-output-names = "apb0_pio", "apb0_timer",
+ "apb0_rsb", "apb0_uart",
+ "apb0_i2c";
+ };
+
+ apb0_rst: apb0_rst {
+ compatible = "allwinner,sun6i-a31-clock-reset";
+ #reset-cells = <1>;
+ };
+
+ codec_analog: codec-analog {
+ compatible = "allwinner,sun8i-a23-codec-analog";
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt
deleted file mode 100644
index daa091c2e67b..000000000000
--- a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-* Allwinner PRCM (Power/Reset/Clock Management) Multi-Functional Device
-
-PRCM is an MFD device exposing several Power Management related devices
-(like clks and reset controllers).
-
-Required properties:
- - compatible: "allwinner,sun6i-a31-prcm" or "allwinner,sun8i-a23-prcm"
- - reg: The PRCM registers range
-
-The prcm node may contain several subdevices definitions:
- - see Documentation/devicetree/bindings/clock/sunxi.txt for clock devices
- - see Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt for reset
- controller devices
-
-
-Example:
-
- prcm: prcm@1f01400 {
- compatible = "allwinner,sun6i-a31-prcm";
- reg = <0x01f01400 0x200>;
-
- /* Put subdevices here */
- ar100: ar100_clk {
- compatible = "allwinner,sun6i-a31-ar100-clk";
- #clock-cells = <0>;
- clocks = <&osc32k>, <&osc24M>, <&pll6>, <&pll6>;
- };
-
- ahb0: ahb0_clk {
- compatible = "fixed-factor-clock";
- #clock-cells = <0>;
- clock-div = <1>;
- clock-mult = <1>;
- clocks = <&ar100_div>;
- clock-output-names = "ahb0";
- };
-
- apb0: apb0_clk {
- compatible = "allwinner,sun6i-a31-apb0-clk";
- #clock-cells = <0>;
- clocks = <&ahb0>;
- clock-output-names = "apb0";
- };
-
- apb0_gates: apb0_gates_clk {
- compatible = "allwinner,sun6i-a31-apb0-gates-clk";
- #clock-cells = <1>;
- clocks = <&apb0>;
- clock-output-names = "apb0_pio", "apb0_ir",
- "apb0_timer01", "apb0_p2wi",
- "apb0_uart", "apb0_1wire",
- "apb0_i2c";
- };
-
- apb0_rst: apb0_rst {
- compatible = "allwinner,sun6i-a31-clock-reset";
- #reset-cells = <1>;
- };
- };
diff --git a/Documentation/devicetree/bindings/mfd/xylon,logicvc.yaml b/Documentation/devicetree/bindings/mfd/xylon,logicvc.yaml
new file mode 100644
index 000000000000..abc9937506e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/xylon,logicvc.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 Bootlin
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/mfd/xylon,logicvc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Xylon LogiCVC multi-function device
+
+maintainers:
+ - Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+
+description: |
+ The LogiCVC is a display controller that also contains a GPIO controller.
+ As a result, a multi-function device is exposed as parent of the display
+ and GPIO blocks.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - xylon,logicvc-3.02.a
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - xylon,logicvc-3.02.a
+
+ required:
+ - compatible
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ logicvc: logicvc@43c00000 {
+ compatible = "xylon,logicvc-3.02.a", "syscon", "simple-mfd";
+ reg = <0x43c00000 0x6000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.txt b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.txt
index 733b64a4d8eb..ae2074184528 100644
--- a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.txt
+++ b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.txt
@@ -11,28 +11,43 @@ Required properties:
- compatible: should be one of the following
- "brcm,bcm7425-sdhci"
- "brcm,bcm7445-sdhci"
+ - "brcm,bcm7216-sdhci"
Refer to clocks/clock-bindings.txt for generic clock consumer properties.
Example:
- sdhci@f03e0100 {
- compatible = "brcm,bcm7425-sdhci";
- reg = <0xf03e0000 0x100>;
- interrupts = <0x0 0x26 0x0>;
- sdhci,auto-cmd12;
- clocks = <&sw_sdio>;
+ sdhci@84b0000 {
sd-uhs-sdr50;
sd-uhs-ddr50;
+ sd-uhs-sdr104;
+ sdhci,auto-cmd12;
+ compatible = "brcm,bcm7216-sdhci",
+ "brcm,bcm7445-sdhci",
+ "brcm,sdhci-brcmstb";
+ reg = <0x84b0000 0x260 0x84b0300 0x200>;
+ reg-names = "host", "cfg";
+ interrupts = <0x0 0x26 0x4>;
+ interrupt-names = "sdio0_0";
+ clocks = <&scmi_clk 245>;
+ clock-names = "sw_sdio";
};
- sdhci@f03e0300 {
+ sdhci@84b1000 {
+ mmc-ddr-1_8v;
+ mmc-hs200-1_8v;
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
+ supports-cqe;
non-removable;
bus-width = <0x8>;
- compatible = "brcm,bcm7425-sdhci";
- reg = <0xf03e0200 0x100>;
- interrupts = <0x0 0x27 0x0>;
- sdhci,auto-cmd12;
- clocks = <sw_sdio>;
- mmc-hs200-1_8v;
+ compatible = "brcm,bcm7216-sdhci",
+ "brcm,bcm7445-sdhci",
+ "brcm,sdhci-brcmstb";
+ reg = <0x84b1000 0x260 0x84b1300 0x200>;
+ reg-names = "host", "cfg";
+ interrupts = <0x0 0x27 0x4>;
+ interrupt-names = "sdio1_0";
+ clocks = <&scmi_clk 245>;
+ clock-names = "sw_sdio";
};
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
index 2fb466ca2a9d..0f97d711444e 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -21,6 +21,8 @@ Required properties:
"fsl,imx8mq-usdhc"
"fsl,imx8mm-usdhc"
"fsl,imx8mn-usdhc"
+ "fsl,imx8mp-usdhc"
+ "fsl,imx8qm-usdhc"
"fsl,imx8qxp-usdhc"
Optional properties:
diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
index b130450c3b34..3c0df4016a12 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
+++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
@@ -96,11 +96,10 @@ properties:
description:
When set, no physical write-protect line is present. This
property should only be specified when the controller has a
- dedicated write-protect detection logic. If a GPIO is always
- used for the write-protect detection. If a GPIO is always used
+ dedicated write-protect detection logic. If a GPIO is always used
for the write-protect detection logic, it is sufficient to not
specify the wp-gpios property in the absence of a write-protect
- line.
+ line. Not used in combination with eMMC or SDIO.
wp-gpios:
description:
diff --git a/Documentation/devicetree/bindings/mmc/renesas,sdhi.txt b/Documentation/devicetree/bindings/mmc/renesas,sdhi.txt
index bc08fc43a9be..e6cc47844207 100644
--- a/Documentation/devicetree/bindings/mmc/renesas,sdhi.txt
+++ b/Documentation/devicetree/bindings/mmc/renesas,sdhi.txt
@@ -23,7 +23,8 @@ Required properties:
"renesas,sdhi-r8a7793" - SDHI IP on R8A7793 SoC
"renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC
"renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC
- "renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC
+ "renesas,sdhi-r8a7796" - SDHI IP on R8A77960 SoC
+ "renesas,sdhi-r8a77961" - SDHI IP on R8A77961 SoC
"renesas,sdhi-r8a77965" - SDHI IP on R8A77965 SoC
"renesas,sdhi-r8a77970" - SDHI IP on R8A77970 SoC
"renesas,sdhi-r8a77980" - SDHI IP on R8A77980 SoC
diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
deleted file mode 100644
index 6f629b12bd69..000000000000
--- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
+++ /dev/null
@@ -1,49 +0,0 @@
-* Rockchip specific extensions to the Synopsys Designware Mobile
- Storage Host Controller
-
-The Synopsys designware mobile storage host controller is used to interface
-a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core Synopsys dw mshc controller properties described
-by synopsys-dw-mshc.txt and the properties used by the Rockchip specific
-extensions to the Synopsys Designware Mobile Storage Host Controller.
-
-Required Properties:
-
-* compatible: should be
- - "rockchip,rk2928-dw-mshc": for Rockchip RK2928 and following,
- before RK3288
- - "rockchip,rk3288-dw-mshc": for Rockchip RK3288
- - "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RV1108
- - "rockchip,px30-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip PX30
- - "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3036
- - "rockchip,rk3228-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK322x
- - "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3328
- - "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3368
- - "rockchip,rk3399-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3399
-
-Optional Properties:
-* clocks: from common clock binding: if ciu-drive and ciu-sample are
- specified in clock-names, should contain handles to these clocks.
-
-* clock-names: Apart from the clock-names described in synopsys-dw-mshc.txt
- two more clocks "ciu-drive" and "ciu-sample" are supported. They are used
- to control the clock phases, "ciu-sample" is required for tuning high-
- speed modes.
-
-* rockchip,default-sample-phase: The default phase to set ciu-sample at
- probing, low speeds or in case where all phases work at tuning time.
- If not specified 0 deg will be used.
-
-* rockchip,desired-num-phases: The desired number of times that the host
- execute tuning when needed. If not specified, the host will do tuning
- for 360 times, namely tuning for each degree.
-
-Example:
-
- rkdwmmc0@12200000 {
- compatible = "rockchip,rk3288-dw-mshc";
- reg = <0x12200000 0x1000>;
- interrupts = <0 75 0>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
new file mode 100644
index 000000000000..89c3edd6a728
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/rockchip-dw-mshc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip designware mobile storage host controller device tree bindings
+
+description:
+ Rockchip uses the Synopsys designware mobile storage host controller
+ to interface a SoC with storage medium such as eMMC or SD/MMC cards.
+ This file documents the combined properties for the core Synopsys dw mshc
+ controller that are not already included in the synopsys-dw-mshc-common.yaml
+ file and the Rockchip specific extensions.
+
+allOf:
+ - $ref: "synopsys-dw-mshc-common.yaml#"
+
+maintainers:
+ - Heiko Stuebner <heiko@sntech.de>
+
+# Everything else is described in the common file
+properties:
+ compatible:
+ oneOf:
+ # for Rockchip RK2928 and before RK3288
+ - const: rockchip,rk2928-dw-mshc
+ # for Rockchip RK3288
+ - const: rockchip,rk3288-dw-mshc
+ - items:
+ - enum:
+ # for Rockchip PX30
+ - rockchip,px30-dw-mshc
+ # for Rockchip RK3036
+ - rockchip,rk3036-dw-mshc
+ # for Rockchip RK322x
+ - rockchip,rk3228-dw-mshc
+ # for Rockchip RK3308
+ - rockchip,rk3308-dw-mshc
+ # for Rockchip RK3328
+ - rockchip,rk3328-dw-mshc
+ # for Rockchip RK3368
+ - rockchip,rk3368-dw-mshc
+ # for Rockchip RK3399
+ - rockchip,rk3399-dw-mshc
+ # for Rockchip RV1108
+ - rockchip,rv1108-dw-mshc
+ - const: rockchip,rk3288-dw-mshc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 4
+ description:
+ Handle to "biu" and "ciu" clocks for the bus interface unit clock and
+ the card interface unit clock. If "ciu-drive" and "ciu-sample" are
+ specified in clock-names, it should also contain
+ handles to these clocks.
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: biu
+ - const: ciu
+ - const: ciu-drive
+ - const: ciu-sample
+ description:
+ Apart from the clock-names "biu" and "ciu" two more clocks
+ "ciu-drive" and "ciu-sample" are supported. They are used
+ to control the clock phases, "ciu-sample" is required for tuning
+ high speed modes.
+
+ rockchip,default-sample-phase:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 360
+ default: 0
+ description:
+ The default phase to set "ciu-sample" at probing,
+ low speeds or in case where all phases work at tuning time.
+ If not specified 0 deg will be used.
+
+ rockchip,desired-num-phases:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 360
+ default: 360
+ description:
+ The desired number of times that the host execute tuning when needed.
+ If not specified, the host will do tuning for 360 times,
+ namely tuning for each degree.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/rk3288-cru.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ sdmmc: mmc@ff0c0000 {
+ compatible = "rockchip,rk3288-dw-mshc";
+ reg = <0x0 0xff0c0000 0x0 0x4000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>,
+ <&cru SCLK_SDMMC_DRV>, <&cru SCLK_SDMMC_SAMPLE>;
+ clock-names = "biu", "ciu", "ciu-drive", "ciu-sample";
+ resets = <&cru SRST_MMC0>;
+ reset-names = "reset";
+ fifo-depth = <0x100>;
+ max-frequency = <150000000>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
index 503c6dbac1b2..69edfd4d3922 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
@@ -5,11 +5,16 @@ Documentation/devicetree/bindings/mmc/mmc.txt and the properties used by the
sdhci-of-at91 driver.
Required properties:
-- compatible: Must be "atmel,sama5d2-sdhci".
+- compatible: Must be "atmel,sama5d2-sdhci" or "microchip,sam9x60-sdhci".
- clocks: Phandlers to the clocks.
-- clock-names: Must be "hclock", "multclk", "baseclk";
+- clock-names: Must be "hclock", "multclk", "baseclk" for
+ "atmel,sama5d2-sdhci".
+ Must be "hclock", "multclk" for "microchip,sam9x60-sdhci".
Optional properties:
+- assigned-clocks: The same with "multclk".
+- assigned-clock-rates The rate of "multclk" in order to not rely on the
+ gck configuration set by previous components.
- microchip,sdcal-inverted: when present, polarity on the SDCAL SoC pin is
inverted. The default polarity for this signal is described in the datasheet.
For instance on SAMA5D2, the pin is usually tied to the GND with a resistor
@@ -17,10 +22,12 @@ Optional properties:
Example:
-sdmmc0: sdio-host@a0000000 {
+mmc0: sdio-host@a0000000 {
compatible = "atmel,sama5d2-sdhci";
reg = <0xa0000000 0x300>;
interrupts = <31 IRQ_TYPE_LEVEL_HIGH 0>;
clocks = <&sdmmc0_hclk>, <&sdmmc0_gclk>, <&main>;
clock-names = "hclock", "multclk", "baseclk";
+ assigned-clocks = <&sdmmc0_gclk>;
+ assigned-clock-rates = <480000000>;
};
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
index da4edb146a98..7ee639b1af03 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
@@ -19,6 +19,7 @@ Required properties:
"qcom,msm8996-sdhci", "qcom,sdhci-msm-v4"
"qcom,sdm845-sdhci", "qcom,sdhci-msm-v5"
"qcom,qcs404-sdhci", "qcom,sdhci-msm-v5"
+ "qcom,sc7180-sdhci", "qcom,sdhci-msm-v5";
NOTE that some old device tree files may be floating around that only
have the string "qcom,sdhci-msm-v4" without the SoC compatible string
but doing that should be considered a deprecated practice.
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
index 72c4dec7e1db..aeb615ef672a 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
@@ -7,6 +7,8 @@ For UHS devices which require tuning, the device tree should have a "cpu_thermal
Required properties:
- compatible: Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers
Should be "ti,k2g-sdhci" for K2G
+ Should be "ti,am335-sdhci" for am335x controllers
+ Should be "ti,am437-sdhci" for am437x controllers
- ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1
(Not required for K2G).
- pinctrl-names: Should be subset of "default", "hs", "sdr12", "sdr25", "sdr50",
@@ -15,6 +17,13 @@ Required properties:
"hs200_1_8v",
- pinctrl-<n> : Pinctrl states as described in bindings/pinctrl/pinctrl-bindings.txt
+Optional properties:
+- dmas: List of DMA specifiers with the controller specific format as described
+ in the generic DMA client binding. A tx and rx specifier is required.
+- dma-names: List of DMA request names. These strings correspond 1:1 with the
+ DMA specifiers listed in dmas. The string naming is to be "tx"
+ and "rx" for TX and RX DMA requests, respectively.
+
Example:
mmc1: mmc@4809c000 {
compatible = "ti,dra7-sdhci";
@@ -22,4 +31,6 @@ Example:
ti,hwmods = "mmc1";
bus-width = <4>;
vmmc-supply = <&vmmc>; /* phandle to regulator node */
+ dmas = <&sdma 61 &sdma 62>;
+ dma-names = "tx", "rx";
};
diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc-common.yaml b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc-common.yaml
new file mode 100644
index 000000000000..890d47a87ac5
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc-common.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/synopsys-dw-mshc-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys Designware Mobile Storage Host Controller Common Properties
+
+allOf:
+ - $ref: "mmc-controller.yaml#"
+
+maintainers:
+ - Ulf Hansson <ulf.hansson@linaro.org>
+
+# Everything else is described in the common file
+properties:
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: reset
+
+ clock-frequency:
+ description:
+ Should be the frequency (in Hz) of the ciu clock. If this
+ is specified and the ciu clock is specified then we'll try to set the ciu
+ clock to this at probe time.
+
+ fifo-depth:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The maximum size of the tx/rx fifo's. If this property is not
+ specified, the default value of the fifo size is determined from the
+ controller registers.
+
+ card-detect-delay:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ - default: 0
+ description:
+ Delay in milli-seconds before detecting card after card
+ insert event. The default value is 0.
+
+ data-addr:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Override fifo address with value provided by DT. The default FIFO reg
+ offset is assumed as 0x100 (version < 0x240A) and 0x200(version >= 0x240A)
+ by driver. If the controller does not follow this rule, please use
+ this property to set fifo address in device tree.
+
+ fifo-watermark-aligned:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Data done irq is expected if data length is less than
+ watermark in PIO mode. But fifo watermark is requested to be aligned
+ with data length in some SoC so that TX/RX irq can be generated with
+ data done irq. Add this watermark quirk to mark this requirement and
+ force fifo watermark setting accordingly.
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ const: rx-tx
diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
deleted file mode 100644
index 7e5e427a22ce..000000000000
--- a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
+++ /dev/null
@@ -1,141 +0,0 @@
-* Synopsys Designware Mobile Storage Host Controller
-
-The Synopsys designware mobile storage host controller is used to interface
-a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core mmc properties described by mmc.txt and the
-properties used by the Synopsys Designware Mobile Storage Host Controller.
-
-Required Properties:
-
-* compatible: should be
- - snps,dw-mshc: for controllers compliant with synopsys dw-mshc.
-* #address-cells: should be 1.
-* #size-cells: should be 0.
-
-# Slots (DEPRECATED): The slot specific information are contained within
- child-nodes with each child-node representing a supported slot. There should
- be atleast one child node representing a card slot. The name of the child node
- representing the slot is recommended to be slot@n where n is the unique number
- of the slot connected to the controller. The following are optional properties
- which can be included in the slot child node.
-
- * reg: specifies the physical slot number. The valid values of this
- property is 0 to (num-slots -1), where num-slots is the value
- specified by the num-slots property.
-
- * bus-width: as documented in mmc core bindings.
-
- * wp-gpios: specifies the write protect gpio line. The format of the
- gpio specifier depends on the gpio controller. If a GPIO is not used
- for write-protect, this property is optional.
-
- * disable-wp: If the wp-gpios property isn't present then (by default)
- we'd assume that the write protect is hooked up directly to the
- controller's special purpose write protect line (accessible via
- the WRTPRT register). However, it's possible that we simply don't
- want write protect. In that case specify 'disable-wp'.
- NOTE: This property is not required for slots known to always
- connect to eMMC or SDIO cards.
-
-Optional properties:
-
-* resets: phandle + reset specifier pair, intended to represent hardware
- reset signal present internally in some host controller IC designs.
- See Documentation/devicetree/bindings/reset/reset.txt for details.
-
-* reset-names: request name for using "resets" property. Must be "reset".
- (It will be used together with "resets" property.)
-
-* clocks: from common clock binding: handle to biu and ciu clocks for the
- bus interface unit clock and the card interface unit clock.
-
-* clock-names: from common clock binding: Shall be "biu" and "ciu".
- If the biu clock is missing we'll simply skip enabling it. If the
- ciu clock is missing we'll just assume that the clock is running at
- clock-frequency. It is an error to omit both the ciu clock and the
- clock-frequency.
-
-* clock-frequency: should be the frequency (in Hz) of the ciu clock. If this
- is specified and the ciu clock is specified then we'll try to set the ciu
- clock to this at probe time.
-
-* fifo-depth: The maximum size of the tx/rx fifo's. If this property is not
- specified, the default value of the fifo size is determined from the
- controller registers.
-
-* card-detect-delay: Delay in milli-seconds before detecting card after card
- insert event. The default value is 0.
-
-* data-addr: Override fifo address with value provided by DT. The default FIFO reg
- offset is assumed as 0x100 (version < 0x240A) and 0x200(version >= 0x240A) by
- driver. If the controller does not follow this rule, please use this property
- to set fifo address in device tree.
-
-* fifo-watermark-aligned: Data done irq is expected if data length is less than
- watermark in PIO mode. But fifo watermark is requested to be aligned with data
- length in some SoC so that TX/RX irq can be generated with data done irq. Add this
- watermark quirk to mark this requirement and force fifo watermark setting
- accordingly.
-
-* vmmc-supply: The phandle to the regulator to use for vmmc. If this is
- specified we'll defer probe until we can find this regulator.
-
-* dmas: List of DMA specifiers with the controller specific format as described
- in the generic DMA client binding. Refer to dma.txt for details.
-
-* dma-names: request names for generic DMA client binding. Must be "rx-tx".
- Refer to dma.txt for details.
-
-Aliases:
-
-- All the MSHC controller nodes should be represented in the aliases node using
- the following format 'mshc{n}' where n is a unique number for the alias.
-
-Example:
-
-The MSHC controller node can be split into two portions, SoC specific and
-board specific portions as listed below.
-
- dwmmc0@12200000 {
- compatible = "snps,dw-mshc";
- clocks = <&clock 351>, <&clock 132>;
- clock-names = "biu", "ciu";
- reg = <0x12200000 0x1000>;
- interrupts = <0 75 0>;
- #address-cells = <1>;
- #size-cells = <0>;
- data-addr = <0x200>;
- fifo-watermark-aligned;
- resets = <&rst 20>;
- reset-names = "reset";
- };
-
-[board specific internal DMA resources]
-
- dwmmc0@12200000 {
- clock-frequency = <400000000>;
- clock-freq-min-max = <400000 200000000>;
- broken-cd;
- fifo-depth = <0x80>;
- card-detect-delay = <200>;
- vmmc-supply = <&buck8>;
- bus-width = <8>;
- cap-mmc-highspeed;
- cap-sd-highspeed;
- };
-
-[board specific generic DMA request binding]
-
- dwmmc0@12200000 {
- clock-frequency = <400000000>;
- clock-freq-min-max = <400000 200000000>;
- broken-cd;
- fifo-depth = <0x80>;
- card-detect-delay = <200>;
- vmmc-supply = <&buck8>;
- bus-width = <8>;
- cap-mmc-highspeed;
- cap-sd-highspeed;
- dmas = <&pdma 12>;
- dma-names = "rx-tx";
- };
diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml
new file mode 100644
index 000000000000..05f9f36dcb75
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/synopsys-dw-mshc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys Designware Mobile Storage Host Controller Binding
+
+allOf:
+ - $ref: "synopsys-dw-mshc-common.yaml#"
+
+maintainers:
+ - Ulf Hansson <ulf.hansson@linaro.org>
+
+# Everything else is described in the common file
+properties:
+ compatible:
+ const: snps,dw-mshc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 2
+ description:
+ Handle to "biu" and "ciu" clocks for the
+ bus interface unit clock and the card interface unit clock.
+
+ clock-names:
+ items:
+ - const: biu
+ - const: ciu
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ mmc@12200000 {
+ compatible = "snps,dw-mshc";
+ reg = <0x12200000 0x1000>;
+ interrupts = <0 75 0>;
+ clocks = <&clock 351>, <&clock 132>;
+ clock-names = "biu", "ciu";
+ dmas = <&pdma 12>;
+ dma-names = "rx-tx";
+ resets = <&rst 20>;
+ reset-names = "reset";
+ vmmc-supply = <&buck8>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ broken-cd;
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
+ card-detect-delay = <200>;
+ clock-freq-min-max = <400000 200000000>;
+ clock-frequency = <400000000>;
+ data-addr = <0x200>;
+ fifo-depth = <0x80>;
+ fifo-watermark-aligned;
+ };
diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
index f16b99571af1..dd258674633c 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
@@ -11,6 +11,7 @@ Required properties:
- compatible: should contain one of the following:
* "brcm,bcm20702a1"
+ * "brcm,bcm4329-bt"
* "brcm,bcm4330-bt"
* "brcm,bcm43438-bt"
* "brcm,bcm4345c5"
@@ -22,7 +23,9 @@ Optional properties:
- max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
- shutdown-gpios: GPIO specifier, used to enable the BT module
- device-wakeup-gpios: GPIO specifier, used to wakeup the controller
- - host-wakeup-gpios: GPIO specifier, used to wakeup the host processor
+ - host-wakeup-gpios: GPIO specifier, used to wakeup the host processor.
+ deprecated, replaced by interrupts and
+ "host-wakeup" interrupt-names
- clocks: 1 or 2 clocks as defined in clock-names below, in that order
- clock-names: names for clock inputs, matching the clocks given
- "extclk": deprecated, replaced by "txco"
@@ -30,7 +33,14 @@ Optional properties:
- "lpo": external low power 32.768 kHz clock
- vbat-supply: phandle to regulator supply for VBAT
- vddio-supply: phandle to regulator supply for VDDIO
-
+ - brcm,bt-pcm-int-params: configure PCM parameters via a 5-byte array
+ - sco-routing: 0 = PCM, 1 = Transport, 2 = Codec, 3 = I2S
+ - pcm-interface-rate: 128KBps, 256KBps, 512KBps, 1024KBps, 2048KBps
+ - pcm-frame-type: short, long
+ - pcm-sync-mode: slave, master
+ - pcm-clock-mode: slave, master
+ - interrupts: must be one, used to wakeup the host processor
+ - interrupt-names: must be "host-wakeup"
Example:
@@ -41,5 +51,6 @@ Example:
bluetooth {
compatible = "brcm,bcm43438-bt";
max-speed = <921600>;
+ brcm,bt-pcm-int-params = [01 02 00 01 01];
};
};
diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
index 27e1b4cebfbd..6bdcc3f84bd3 100644
--- a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
+++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
@@ -10,7 +10,6 @@ Required properties:
- #size-cells: 0
- spi-max-frequency: Maximum frequency of the SPI bus the chip can
operate at should be less than or equal to 18 MHz.
- - device-wake-gpios: Wake up GPIO to wake up the TCAN device.
- interrupt-parent: the phandle to the interrupt controller which provides
the interrupt.
- interrupts: interrupt specification for data-ready.
@@ -23,6 +22,7 @@ Optional properties:
reset.
- device-state-gpios: Input GPIO that indicates if the device is in
a sleep state or if the device is active.
+ - device-wake-gpios: Wake up GPIO to wake up the TCAN device.
Example:
tcan4x5x: tcan4x5x@0 {
@@ -36,5 +36,5 @@ tcan4x5x: tcan4x5x@0 {
interrupts = <14 GPIO_ACTIVE_LOW>;
device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
- reset-gpios = <&gpio1 27 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
};
diff --git a/Documentation/devicetree/bindings/net/dsa/ar9331.txt b/Documentation/devicetree/bindings/net/dsa/ar9331.txt
new file mode 100644
index 000000000000..320607cbbb17
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/ar9331.txt
@@ -0,0 +1,148 @@
+Atheros AR9331 built-in switch
+=============================
+
+It is a switch built-in to Atheros AR9331 WiSoC and addressable over internal
+MDIO bus. All PHYs are built-in as well.
+
+Required properties:
+
+ - compatible: should be: "qca,ar9331-switch"
+ - reg: Address on the MII bus for the switch.
+ - resets : Must contain an entry for each entry in reset-names.
+ - reset-names : Must include the following entries: "switch"
+ - interrupt-parent: Phandle to the parent interrupt controller
+ - interrupts: IRQ line for the switch
+ - interrupt-controller: Indicates the switch is itself an interrupt
+ controller. This is used for the PHY interrupts.
+ - #interrupt-cells: must be 1
+ - mdio: Container of PHY and devices on the switches MDIO bus.
+
+See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
+required and optional properties.
+Examples:
+
+eth0: ethernet@19000000 {
+ compatible = "qca,ar9330-eth";
+ reg = <0x19000000 0x200>;
+ interrupts = <4>;
+
+ resets = <&rst 9>, <&rst 22>;
+ reset-names = "mac", "mdio";
+ clocks = <&pll ATH79_CLK_AHB>, <&pll ATH79_CLK_AHB>;
+ clock-names = "eth", "mdio";
+
+ phy-mode = "mii";
+ phy-handle = <&phy_port4>;
+};
+
+eth1: ethernet@1a000000 {
+ compatible = "qca,ar9330-eth";
+ reg = <0x1a000000 0x200>;
+ interrupts = <5>;
+ resets = <&rst 13>, <&rst 23>;
+ reset-names = "mac", "mdio";
+ clocks = <&pll ATH79_CLK_AHB>, <&pll ATH79_CLK_AHB>;
+ clock-names = "eth", "mdio";
+
+ phy-mode = "gmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch10: switch@10 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compatible = "qca,ar9331-switch";
+ reg = <0x10>;
+ resets = <&rst 8>;
+ reset-names = "switch";
+
+ interrupt-parent = <&miscintc>;
+ interrupts = <12>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch_port0: port@0 {
+ reg = <0x0>;
+ label = "cpu";
+ ethernet = <&eth1>;
+
+ phy-mode = "gmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ switch_port1: port@1 {
+ reg = <0x1>;
+ phy-handle = <&phy_port0>;
+ phy-mode = "internal";
+ };
+
+ switch_port2: port@2 {
+ reg = <0x2>;
+ phy-handle = <&phy_port1>;
+ phy-mode = "internal";
+ };
+
+ switch_port3: port@3 {
+ reg = <0x3>;
+ phy-handle = <&phy_port2>;
+ phy-mode = "internal";
+ };
+
+ switch_port4: port@4 {
+ reg = <0x4>;
+ phy-handle = <&phy_port3>;
+ phy-mode = "internal";
+ };
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&switch10>;
+
+ phy_port0: phy@0 {
+ reg = <0x0>;
+ interrupts = <0>;
+ };
+
+ phy_port1: phy@1 {
+ reg = <0x1>;
+ interrupts = <0>;
+ };
+
+ phy_port2: phy@2 {
+ reg = <0x2>;
+ interrupts = <0>;
+ };
+
+ phy_port3: phy@3 {
+ reg = <0x3>;
+ interrupts = <0>;
+ };
+
+ phy_port4: phy@4 {
+ reg = <0x4>;
+ interrupts = <0>;
+ };
+ };
+ };
+ };
+};
diff --git a/Documentation/devicetree/bindings/net/fsl-fman.txt b/Documentation/devicetree/bindings/net/fsl-fman.txt
index 299c0dcd67db..250f8d8cdce4 100644
--- a/Documentation/devicetree/bindings/net/fsl-fman.txt
+++ b/Documentation/devicetree/bindings/net/fsl-fman.txt
@@ -403,6 +403,19 @@ PROPERTIES
The settings and programming routines for internal/external
MDIO are different. Must be included for internal MDIO.
+- fsl,erratum-a011043
+ Usage: optional
+ Value type: <boolean>
+ Definition: Indicates the presence of the A011043 erratum
+ describing that the MDIO_CFG[MDIO_RD_ER] bit may be falsely
+ set when reading internal PCS registers. MDIO reads to
+ internal PCS registers may result in having the
+ MDIO_CFG[MDIO_RD_ER] bit set, even when there is no error and
+ read data (MDIO_DATA[MDIO_DATA]) is correct.
+ Software may get false read error when reading internal
+ PCS registers through MDIO. As a workaround, all internal
+ MDIO accesses should ignore the MDIO_CFG[MDIO_RD_ER] bit.
+
For internal PHY device on internal mdio bus, a PHY node should be created.
See the definition of the PHY node in booting-without-of.txt for an
example of how to define a PHY (Internal PHY has no interrupt line).
diff --git a/Documentation/devicetree/bindings/net/mediatek-dwmac.txt b/Documentation/devicetree/bindings/net/mediatek-dwmac.txt
index 8a08621a5b54..afbcaebf062e 100644
--- a/Documentation/devicetree/bindings/net/mediatek-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/mediatek-dwmac.txt
@@ -14,7 +14,7 @@ Required properties:
Should be "macirq" for the main MAC IRQ
- clocks: Must contain a phandle for each entry in clock-names.
- clock-names: The name of the clock listed in the clocks property. These are
- "axi", "apb", "mac_main", "ptp_ref" for MT2712 SoC
+ "axi", "apb", "mac_main", "ptp_ref", "rmii_internal" for MT2712 SoC.
- mac-address: See ethernet.txt in the same directory
- phy-mode: See ethernet.txt in the same directory
- mediatek,pericfg: A phandle to the syscon node that control ethernet
@@ -23,8 +23,10 @@ Required properties:
Optional properties:
- mediatek,tx-delay-ps: TX clock delay macro value. Default is 0.
It should be defined for RGMII/MII interface.
+ It should be defined for RMII interface when the reference clock is from MT2712 SoC.
- mediatek,rx-delay-ps: RX clock delay macro value. Default is 0.
- It should be defined for RGMII/MII/RMII interface.
+ It should be defined for RGMII/MII interface.
+ It should be defined for RMII interface.
Both delay properties need to be a multiple of 170 for RGMII interface,
or will round down. Range 0~31*170.
Both delay properties need to be a multiple of 550 for MII/RMII interface,
@@ -34,13 +36,20 @@ or will round down. Range 0~31*550.
reference clock, which is from external PHYs, is connected to RXC pin
on MT2712 SoC.
Otherwise, is connected to TXC pin.
+- mediatek,rmii-clk-from-mac: boolean property, if present indicates that
+ MT2712 SoC provides the RMII reference clock, which outputs to TXC pin only.
- mediatek,txc-inverse: boolean property, if present indicates that
1. tx clock will be inversed in MII/RGMII case,
2. tx clock inside MAC will be inversed relative to reference clock
which is from external PHYs in RMII case, and it rarely happen.
+ 3. the reference clock, which outputs to TXC pin will be inversed in RMII case
+ when the reference clock is from MT2712 SoC.
- mediatek,rxc-inverse: boolean property, if present indicates that
1. rx clock will be inversed in MII/RGMII case.
- 2. reference clock will be inversed when arrived at MAC in RMII case.
+ 2. reference clock will be inversed when arrived at MAC in RMII case, when
+ the reference clock is from external PHYs.
+ 3. the inside clock, which be sent to MAC, will be inversed in RMII case when
+ the reference clock is from MT2712 SoC.
- assigned-clocks: mac_main and ptp_ref clocks
- assigned-clock-parents: parent clocks of the assigned clocks
@@ -50,29 +59,33 @@ Example:
reg = <0 0x1101c000 0 0x1300>;
interrupts = <GIC_SPI 237 IRQ_TYPE_LEVEL_LOW>;
interrupt-names = "macirq";
- phy-mode ="rgmii";
+ phy-mode ="rgmii-rxid";
mac-address = [00 55 7b b5 7d f7];
clock-names = "axi",
"apb",
"mac_main",
"ptp_ref",
- "ptp_top";
+ "rmii_internal";
clocks = <&pericfg CLK_PERI_GMAC>,
<&pericfg CLK_PERI_GMAC_PCLK>,
<&topckgen CLK_TOP_ETHER_125M_SEL>,
- <&topckgen CLK_TOP_ETHER_50M_SEL>;
+ <&topckgen CLK_TOP_ETHER_50M_SEL>,
+ <&topckgen CLK_TOP_ETHER_50M_RMII_SEL>;
assigned-clocks = <&topckgen CLK_TOP_ETHER_125M_SEL>,
- <&topckgen CLK_TOP_ETHER_50M_SEL>;
+ <&topckgen CLK_TOP_ETHER_50M_SEL>,
+ <&topckgen CLK_TOP_ETHER_50M_RMII_SEL>;
assigned-clock-parents = <&topckgen CLK_TOP_ETHERPLL_125M>,
- <&topckgen CLK_TOP_APLL1_D3>;
+ <&topckgen CLK_TOP_APLL1_D3>,
+ <&topckgen CLK_TOP_ETHERPLL_50M>;
+ power-domains = <&scpsys MT2712_POWER_DOMAIN_AUDIO>;
mediatek,pericfg = <&pericfg>;
mediatek,tx-delay-ps = <1530>;
mediatek,rx-delay-ps = <1530>;
mediatek,rmii-rxc;
mediatek,txc-inverse;
mediatek,rxc-inverse;
- snps,txpbl = <32>;
- snps,rxpbl = <32>;
+ snps,txpbl = <1>;
+ snps,rxpbl = <1>;
snps,reset-gpio = <&pio 87 GPIO_ACTIVE_LOW>;
snps,reset-active-low;
};
diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
index 68b67d9db63a..999aceadb985 100644
--- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
@@ -11,6 +11,7 @@ Required properties:
- compatible: should contain one of the following:
* "qcom,qca6174-bt"
* "qcom,wcn3990-bt"
+ * "qcom,wcn3991-bt"
* "qcom,wcn3998-bt"
Optional properties for compatible string qcom,qca6174-bt:
diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt
index 5df4aa7f6811..87dad2dd8ca0 100644
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt
+++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt
@@ -21,7 +21,8 @@ Required properties:
- "renesas,etheravb-r8a774b1" for the R8A774B1 SoC.
- "renesas,etheravb-r8a774c0" for the R8A774C0 SoC.
- "renesas,etheravb-r8a7795" for the R8A7795 SoC.
- - "renesas,etheravb-r8a7796" for the R8A7796 SoC.
+ - "renesas,etheravb-r8a7796" for the R8A77960 SoC.
+ - "renesas,etheravb-r8a77961" for the R8A77961 SoC.
- "renesas,etheravb-r8a77965" for the R8A77965 SoC.
- "renesas,etheravb-r8a77970" for the R8A77970 SoC.
- "renesas,etheravb-r8a77980" for the R8A77980 SoC.
@@ -37,8 +38,8 @@ Required properties:
- reg: Offset and length of (1) the register block and (2) the stream buffer.
The region for the register block is mandatory.
The region for the stream buffer is optional, as it is only present on
- R-Car Gen2 and RZ/G1 SoCs, and on R-Car H3 (R8A7795), M3-W (R8A7796),
- and M3-N (R8A77965).
+ R-Car Gen2 and RZ/G1 SoCs, and on R-Car H3 (R8A7795), M3-W (R8A77960),
+ M3-W+ (R8A77961), and M3-N (R8A77965).
- interrupts: A list of interrupt-specifiers, one for each entry in
interrupt-names.
If interrupt-names is not present, an interrupt specifier
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 4845e29411e4..e08cd4c4d568 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -347,6 +347,7 @@ allOf:
- st,spear600-gmac
then:
+ properties:
snps,tso:
$ref: /schemas/types.yaml#definitions/flag
description:
diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt
index 388ff48f53ae..44e2a4fab29e 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83867.txt
+++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt
@@ -8,8 +8,6 @@ Required properties:
- ti,tx-internal-delay - RGMII Transmit Clock Delay - see dt-bindings/net/ti-dp83867.h
for applicable values. Required only if interface type is
PHY_INTERFACE_MODE_RGMII_ID or PHY_INTERFACE_MODE_RGMII_TXID
- - ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
- for applicable values
Note: If the interface type is PHY_INTERFACE_MODE_RGMII the TX/RX clock delays
will be left at their default values, as set by the PHY's pin strapping.
@@ -42,6 +40,14 @@ Optional property:
Some MACs work with differential SGMII clock.
See data manual for details.
+ - ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
+ for applicable values (deprecated)
+
+ -tx-fifo-depth - As defined in the ethernet-controller.yaml. Values for
+ the depth can be found in dt-bindings/net/ti-dp83867.h
+ -rx-fifo-depth - As defined in the ethernet-controller.yaml. Values for
+ the depth can be found in dt-bindings/net/ti-dp83867.h
+
Note: ti,min-output-impedance and ti,max-output-impedance are mutually
exclusive. When both properties are present ti,max-output-impedance
takes precedence.
@@ -55,7 +61,7 @@ Example:
reg = <0>;
ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_75_NS>;
- ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+ tx-fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
};
Datasheet can be found:
diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
index 017128394a3e..616c87746d6f 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
@@ -50,7 +50,7 @@ Optional properties:
entry in clock-names.
- clock-names: Should contain the clock names "wifi_wcss_cmd", "wifi_wcss_ref",
"wifi_wcss_rtc" for "qcom,ipq4019-wifi" compatible target and
- "cxo_ref_clk_pin" for "qcom,wcn3990-wifi"
+ "cxo_ref_clk_pin" and optionally "qdss" for "qcom,wcn3990-wifi"
compatible target.
- qcom,msi_addr: MSI interrupt address.
- qcom,msi_base: Base value to add before writing MSI data into
@@ -88,6 +88,9 @@ Optional properties:
of the host capability QMI request
- qcom,xo-cal-data: xo cal offset to be configured in xo trim register.
+- qcom,msa-fixed-perm: Boolean context flag to disable SCM call for statically
+ mapped msa region.
+
Example (to supply PCI based wifi block details):
In this example, the node is defined as child node of the PCI controller.
@@ -185,4 +188,5 @@ wifi@18000000 {
vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
memory-region = <&wifi_msa_mem>;
iommus = <&apps_smmu 0x0040 0x1>;
+ qcom,msa-fixed-perm;
};
diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
new file mode 100644
index 000000000000..a1717db36dba
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
@@ -0,0 +1,273 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/wireless/qcom,ath11k.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies ath11k wireless devices Generic Binding
+
+maintainers:
+ - Kalle Valo <kvalo@codeaurora.org>
+
+description: |
+ These are dt entries for Qualcomm Technologies, Inc. IEEE 802.11ax
+ devices, for example like AHB based IPQ8074.
+
+properties:
+ compatible:
+ const: qcom,ipq8074-wifi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: misc-pulse1 interrupt events
+ - description: misc-latch interrupt events
+ - description: sw exception interrupt events
+ - description: watchdog interrupt events
+ - description: interrupt event for ring CE0
+ - description: interrupt event for ring CE1
+ - description: interrupt event for ring CE2
+ - description: interrupt event for ring CE3
+ - description: interrupt event for ring CE4
+ - description: interrupt event for ring CE5
+ - description: interrupt event for ring CE6
+ - description: interrupt event for ring CE7
+ - description: interrupt event for ring CE8
+ - description: interrupt event for ring CE9
+ - description: interrupt event for ring CE10
+ - description: interrupt event for ring CE11
+ - description: interrupt event for ring host2wbm-desc-feed
+ - description: interrupt event for ring host2reo-re-injection
+ - description: interrupt event for ring host2reo-command
+ - description: interrupt event for ring host2rxdma-monitor-ring3
+ - description: interrupt event for ring host2rxdma-monitor-ring2
+ - description: interrupt event for ring host2rxdma-monitor-ring1
+ - description: interrupt event for ring reo2ost-exception
+ - description: interrupt event for ring wbm2host-rx-release
+ - description: interrupt event for ring reo2host-status
+ - description: interrupt event for ring reo2host-destination-ring4
+ - description: interrupt event for ring reo2host-destination-ring3
+ - description: interrupt event for ring reo2host-destination-ring2
+ - description: interrupt event for ring reo2host-destination-ring1
+ - description: interrupt event for ring rxdma2host-monitor-destination-mac3
+ - description: interrupt event for ring rxdma2host-monitor-destination-mac2
+ - description: interrupt event for ring rxdma2host-monitor-destination-mac1
+ - description: interrupt event for ring ppdu-end-interrupts-mac3
+ - description: interrupt event for ring ppdu-end-interrupts-mac2
+ - description: interrupt event for ring ppdu-end-interrupts-mac1
+ - description: interrupt event for ring rxdma2host-monitor-status-ring-mac3
+ - description: interrupt event for ring rxdma2host-monitor-status-ring-mac2
+ - description: interrupt event for ring rxdma2host-monitor-status-ring-mac1
+ - description: interrupt event for ring host2rxdma-host-buf-ring-mac3
+ - description: interrupt event for ring host2rxdma-host-buf-ring-mac2
+ - description: interrupt event for ring host2rxdma-host-buf-ring-mac1
+ - description: interrupt event for ring rxdma2host-destination-ring-mac3
+ - description: interrupt event for ring rxdma2host-destination-ring-mac2
+ - description: interrupt event for ring rxdma2host-destination-ring-mac1
+ - description: interrupt event for ring host2tcl-input-ring4
+ - description: interrupt event for ring host2tcl-input-ring3
+ - description: interrupt event for ring host2tcl-input-ring2
+ - description: interrupt event for ring host2tcl-input-ring1
+ - description: interrupt event for ring wbm2host-tx-completions-ring3
+ - description: interrupt event for ring wbm2host-tx-completions-ring2
+ - description: interrupt event for ring wbm2host-tx-completions-ring1
+ - description: interrupt event for ring tcl2host-status-ring
+
+
+ interrupt-names:
+ items:
+ - const: misc-pulse1
+ - const: misc-latch
+ - const: sw-exception
+ - const: watchdog
+ - const: ce0
+ - const: ce1
+ - const: ce2
+ - const: ce3
+ - const: ce4
+ - const: ce5
+ - const: ce6
+ - const: ce7
+ - const: ce8
+ - const: ce9
+ - const: ce10
+ - const: ce11
+ - const: host2wbm-desc-feed
+ - const: host2reo-re-injection
+ - const: host2reo-command
+ - const: host2rxdma-monitor-ring3
+ - const: host2rxdma-monitor-ring2
+ - const: host2rxdma-monitor-ring1
+ - const: reo2ost-exception
+ - const: wbm2host-rx-release
+ - const: reo2host-status
+ - const: reo2host-destination-ring4
+ - const: reo2host-destination-ring3
+ - const: reo2host-destination-ring2
+ - const: reo2host-destination-ring1
+ - const: rxdma2host-monitor-destination-mac3
+ - const: rxdma2host-monitor-destination-mac2
+ - const: rxdma2host-monitor-destination-mac1
+ - const: ppdu-end-interrupts-mac3
+ - const: ppdu-end-interrupts-mac2
+ - const: ppdu-end-interrupts-mac1
+ - const: rxdma2host-monitor-status-ring-mac3
+ - const: rxdma2host-monitor-status-ring-mac2
+ - const: rxdma2host-monitor-status-ring-mac1
+ - const: host2rxdma-host-buf-ring-mac3
+ - const: host2rxdma-host-buf-ring-mac2
+ - const: host2rxdma-host-buf-ring-mac1
+ - const: rxdma2host-destination-ring-mac3
+ - const: rxdma2host-destination-ring-mac2
+ - const: rxdma2host-destination-ring-mac1
+ - const: host2tcl-input-ring4
+ - const: host2tcl-input-ring3
+ - const: host2tcl-input-ring2
+ - const: host2tcl-input-ring1
+ - const: wbm2host-tx-completions-ring3
+ - const: wbm2host-tx-completions-ring2
+ - const: wbm2host-tx-completions-ring1
+ - const: tcl2host-status-ring
+
+ qcom,rproc:
+ $ref: /schemas/types.yaml#definitions/phandle
+ description:
+ DT entry of q6v5-wcss remoteproc driver.
+ Phandle to a node that can contain the following properties
+ * compatible
+ * reg
+ * reg-names
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-names
+ - qcom,rproc
+
+additionalProperties: false
+
+examples:
+ - |
+
+ q6v5_wcss: q6v5_wcss@CD00000 {
+ compatible = "qcom,ipq8074-wcss-pil";
+ reg = <0xCD00000 0x4040>,
+ <0x4AB000 0x20>;
+ reg-names = "qdsp6",
+ "rmb";
+ };
+
+ wifi0: wifi@c000000 {
+ compatible = "qcom,ipq8074-wifi";
+ reg = <0xc000000 0x2000000>;
+ interrupts = <0 320 1>,
+ <0 319 1>,
+ <0 318 1>,
+ <0 317 1>,
+ <0 316 1>,
+ <0 315 1>,
+ <0 314 1>,
+ <0 311 1>,
+ <0 310 1>,
+ <0 411 1>,
+ <0 410 1>,
+ <0 40 1>,
+ <0 39 1>,
+ <0 302 1>,
+ <0 301 1>,
+ <0 37 1>,
+ <0 36 1>,
+ <0 296 1>,
+ <0 295 1>,
+ <0 294 1>,
+ <0 293 1>,
+ <0 292 1>,
+ <0 291 1>,
+ <0 290 1>,
+ <0 289 1>,
+ <0 288 1>,
+ <0 239 1>,
+ <0 236 1>,
+ <0 235 1>,
+ <0 234 1>,
+ <0 233 1>,
+ <0 232 1>,
+ <0 231 1>,
+ <0 230 1>,
+ <0 229 1>,
+ <0 228 1>,
+ <0 224 1>,
+ <0 223 1>,
+ <0 203 1>,
+ <0 183 1>,
+ <0 180 1>,
+ <0 179 1>,
+ <0 178 1>,
+ <0 177 1>,
+ <0 176 1>,
+ <0 163 1>,
+ <0 162 1>,
+ <0 160 1>,
+ <0 159 1>,
+ <0 158 1>,
+ <0 157 1>,
+ <0 156 1>;
+ interrupt-names = "misc-pulse1",
+ "misc-latch",
+ "sw-exception",
+ "watchdog",
+ "ce0",
+ "ce1",
+ "ce2",
+ "ce3",
+ "ce4",
+ "ce5",
+ "ce6",
+ "ce7",
+ "ce8",
+ "ce9",
+ "ce10",
+ "ce11",
+ "host2wbm-desc-feed",
+ "host2reo-re-injection",
+ "host2reo-command",
+ "host2rxdma-monitor-ring3",
+ "host2rxdma-monitor-ring2",
+ "host2rxdma-monitor-ring1",
+ "reo2ost-exception",
+ "wbm2host-rx-release",
+ "reo2host-status",
+ "reo2host-destination-ring4",
+ "reo2host-destination-ring3",
+ "reo2host-destination-ring2",
+ "reo2host-destination-ring1",
+ "rxdma2host-monitor-destination-mac3",
+ "rxdma2host-monitor-destination-mac2",
+ "rxdma2host-monitor-destination-mac1",
+ "ppdu-end-interrupts-mac3",
+ "ppdu-end-interrupts-mac2",
+ "ppdu-end-interrupts-mac1",
+ "rxdma2host-monitor-status-ring-mac3",
+ "rxdma2host-monitor-status-ring-mac2",
+ "rxdma2host-monitor-status-ring-mac1",
+ "host2rxdma-host-buf-ring-mac3",
+ "host2rxdma-host-buf-ring-mac2",
+ "host2rxdma-host-buf-ring-mac1",
+ "rxdma2host-destination-ring-mac3",
+ "rxdma2host-destination-ring-mac2",
+ "rxdma2host-destination-ring-mac1",
+ "host2tcl-input-ring4",
+ "host2tcl-input-ring3",
+ "host2tcl-input-ring2",
+ "host2tcl-input-ring1",
+ "wbm2host-tx-completions-ring3",
+ "wbm2host-tx-completions-ring2",
+ "wbm2host-tx-completions-ring1",
+ "tcl2host-status-ring";
+ qcom,rproc = <&q6v5_wcss>;
+ };
diff --git a/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt b/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt
index 904dadf3d07b..6e346d5cddcf 100644
--- a/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt
+++ b/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt
@@ -2,7 +2,7 @@ Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings
This binding represents the on-chip eFuse OTP controller found on
i.MX6Q/D, i.MX6DL/S, i.MX6SL, i.MX6SX, i.MX6UL, i.MX6ULL/ULZ, i.MX6SLL,
-i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM and i.MX8MN SoCs.
+i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.
Required properties:
- compatible: should be one of
@@ -17,6 +17,7 @@ Required properties:
"fsl,imx8mq-ocotp" (i.MX8MQ),
"fsl,imx8mm-ocotp" (i.MX8MM),
"fsl,imx8mn-ocotp" (i.MX8MN),
+ "fsl,imx8mp-ocotp" (i.MX8MP),
followed by "syscon".
- #address-cells : Should be 1
- #size-cells : Should be 1
diff --git a/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml b/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml
new file mode 100644
index 000000000000..7bbd4e62044e
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/qcom,spmi-sdam.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SPMI SDAM DT bindings
+
+maintainers:
+ - Shyam Kumar Thella <sthella@codeaurora.org>
+
+description: |
+ The SDAM provides scratch register space for the PMIC clients. This
+ memory can be used by software to store information or communicate
+ to/from the PBUS.
+
+allOf:
+ - $ref: "nvmem.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - qcom,spmi-sdam
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+required:
+ - compatible
+ - reg
+ - ranges
+
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ type: object
+
+ properties:
+ reg:
+ maxItems: 1
+ description:
+ Offset and size in bytes within the storage device.
+
+ bits:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ maxItems: 1
+ items:
+ items:
+ - minimum: 0
+ maximum: 7
+ description:
+ Offset in bit within the address range specified by reg.
+ - minimum: 1
+ description:
+ Size in bit within the address range specified by reg.
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+examples:
+ - |
+ sdam_1: nvram@b000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "qcom,spmi-sdam";
+ reg = <0xb000 0x100>;
+ ranges = <0 0xb000 0x100>;
+
+ /* Data cells */
+ restart_reason: restart@50 {
+ reg = <0x50 0x1>;
+ bits = <6 2>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt b/Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt
deleted file mode 100644
index 142a51d5a9be..000000000000
--- a/Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-STMicroelectronics STM32 Factory-programmed data device tree bindings
-
-This represents STM32 Factory-programmed read only non-volatile area: locked
-flash, OTP, read-only HW regs... This contains various information such as:
-analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2),
-internal vref (VREFIN_CAL), unique device ID...
-
-Required properties:
-- compatible: Should be one of:
- "st,stm32f4-otp"
- "st,stm32mp15-bsec"
-- reg: Offset and length of factory-programmed area.
-- #address-cells: Should be '<1>'.
-- #size-cells: Should be '<1>'.
-
-Optional Data cells:
-- Must be child nodes as described in nvmem.txt.
-
-Example on stm32f4:
- romem: nvmem@1fff7800 {
- compatible = "st,stm32f4-otp";
- reg = <0x1fff7800 0x400>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- /* Data cells: ts_cal1 at 0x1fff7a2c */
- ts_cal1: calib@22c {
- reg = <0x22c 0x2>;
- };
- ...
- };
diff --git a/Documentation/devicetree/bindings/nvmem/st,stm32-romem.yaml b/Documentation/devicetree/bindings/nvmem/st,stm32-romem.yaml
new file mode 100644
index 000000000000..d84deb4774a4
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/st,stm32-romem.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/st,stm32-romem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Factory-programmed data bindings
+
+description: |
+ This represents STM32 Factory-programmed read only non-volatile area: locked
+ flash, OTP, read-only HW regs... This contains various information such as:
+ analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2),
+ internal vref (VREFIN_CAL), unique device ID...
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+
+allOf:
+ - $ref: "nvmem.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - st,stm32f4-otp
+ - st,stm32mp15-bsec
+
+required:
+ - "#address-cells"
+ - "#size-cells"
+ - compatible
+ - reg
+
+examples:
+ - |
+ efuse@1fff7800 {
+ compatible = "st,stm32f4-otp";
+ reg = <0x1fff7800 0x400>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ calib@22c {
+ reg = <0x22c 0x2>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml b/Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml
new file mode 100644
index 000000000000..aef87a33a7c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/opp/allwinner,sun50i-h6-operating-points.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner H6 CPU OPP Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description: |
+ For some SoCs, the CPU frequency subset and voltage value of each
+ OPP varies based on the silicon variant in use. Allwinner Process
+ Voltage Scaling Tables defines the voltage and frequency value based
+ on the speedbin blown in the efuse combination. The
+ sun50i-cpufreq-nvmem driver reads the efuse value from the SoC to
+ provide the OPP framework with required information.
+
+properties:
+ compatible:
+ const: allwinner,sun50i-h6-operating-points
+
+ nvmem-cells:
+ description: |
+ A phandle pointing to a nvmem-cells node representing the efuse
+ registers that has information about the speedbin that is used
+ to select the right frequency/voltage value pair. Please refer
+ the for nvmem-cells bindings
+ Documentation/devicetree/bindings/nvmem/nvmem.txt and also
+ examples below.
+
+required:
+ - compatible
+ - nvmem-cells
+
+patternProperties:
+ "opp-[0-9]+":
+ type: object
+
+ properties:
+ opp-hz: true
+
+ patternProperties:
+ "opp-microvolt-.*": true
+
+ required:
+ - opp-hz
+ - opp-microvolt-speed0
+ - opp-microvolt-speed1
+ - opp-microvolt-speed2
+
+ unevaluatedProperties: false
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ cpu_opp_table: opp-table {
+ compatible = "allwinner,sun50i-h6-operating-points";
+ nvmem-cells = <&speedbin_efuse>;
+ opp-shared;
+
+ opp-480000000 {
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-hz = /bits/ 64 <480000000>;
+
+ opp-microvolt-speed0 = <880000>;
+ opp-microvolt-speed1 = <820000>;
+ opp-microvolt-speed2 = <800000>;
+ };
+
+ opp-720000000 {
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-hz = /bits/ 64 <720000000>;
+
+ opp-microvolt-speed0 = <880000>;
+ opp-microvolt-speed1 = <820000>;
+ opp-microvolt-speed2 = <800000>;
+ };
+
+ opp-816000000 {
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-hz = /bits/ 64 <816000000>;
+
+ opp-microvolt-speed0 = <880000>;
+ opp-microvolt-speed1 = <820000>;
+ opp-microvolt-speed2 = <800000>;
+ };
+
+ opp-888000000 {
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-hz = /bits/ 64 <888000000>;
+
+ opp-microvolt-speed0 = <940000>;
+ opp-microvolt-speed1 = <820000>;
+ opp-microvolt-speed2 = <800000>;
+ };
+
+ opp-1080000000 {
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-hz = /bits/ 64 <1080000000>;
+
+ opp-microvolt-speed0 = <1060000>;
+ opp-microvolt-speed1 = <880000>;
+ opp-microvolt-speed2 = <840000>;
+ };
+
+ opp-1320000000 {
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-hz = /bits/ 64 <1320000000>;
+
+ opp-microvolt-speed0 = <1160000>;
+ opp-microvolt-speed1 = <940000>;
+ opp-microvolt-speed2 = <900000>;
+ };
+
+ opp-1488000000 {
+ clock-latency-ns = <244144>; /* 8 32k periods */
+ opp-hz = /bits/ 64 <1488000000>;
+
+ opp-microvolt-speed0 = <1160000>;
+ opp-microvolt-speed1 = <1000000>;
+ opp-microvolt-speed2 = <960000>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/opp/sun50i-nvmem-cpufreq.txt b/Documentation/devicetree/bindings/opp/sun50i-nvmem-cpufreq.txt
deleted file mode 100644
index 7deae57a587b..000000000000
--- a/Documentation/devicetree/bindings/opp/sun50i-nvmem-cpufreq.txt
+++ /dev/null
@@ -1,167 +0,0 @@
-Allwinner Technologies, Inc. NVMEM CPUFreq and OPP bindings
-===================================
-
-For some SoCs, the CPU frequency subset and voltage value of each OPP
-varies based on the silicon variant in use. Allwinner Process Voltage
-Scaling Tables defines the voltage and frequency value based on the
-speedbin blown in the efuse combination. The sun50i-cpufreq-nvmem driver
-reads the efuse value from the SoC to provide the OPP framework with
-required information.
-
-Required properties:
---------------------
-In 'cpus' nodes:
-- operating-points-v2: Phandle to the operating-points-v2 table to use.
-
-In 'operating-points-v2' table:
-- compatible: Should be
- - 'allwinner,sun50i-h6-operating-points'.
-- nvmem-cells: A phandle pointing to a nvmem-cells node representing the
- efuse registers that has information about the speedbin
- that is used to select the right frequency/voltage value
- pair. Please refer the for nvmem-cells bindings
- Documentation/devicetree/bindings/nvmem/nvmem.txt and
- also examples below.
-
-In every OPP node:
-- opp-microvolt-<name>: Voltage in micro Volts.
- At runtime, the platform can pick a <name> and
- matching opp-microvolt-<name> property.
- [See: opp.txt]
- HW: <name>:
- sun50i-h6 speed0 speed1 speed2
-
-Example 1:
----------
-
- cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpu0: cpu@0 {
- compatible = "arm,cortex-a53";
- device_type = "cpu";
- reg = <0>;
- enable-method = "psci";
- clocks = <&ccu CLK_CPUX>;
- clock-latency-ns = <244144>; /* 8 32k periods */
- operating-points-v2 = <&cpu_opp_table>;
- #cooling-cells = <2>;
- };
-
- cpu1: cpu@1 {
- compatible = "arm,cortex-a53";
- device_type = "cpu";
- reg = <1>;
- enable-method = "psci";
- clocks = <&ccu CLK_CPUX>;
- clock-latency-ns = <244144>; /* 8 32k periods */
- operating-points-v2 = <&cpu_opp_table>;
- #cooling-cells = <2>;
- };
-
- cpu2: cpu@2 {
- compatible = "arm,cortex-a53";
- device_type = "cpu";
- reg = <2>;
- enable-method = "psci";
- clocks = <&ccu CLK_CPUX>;
- clock-latency-ns = <244144>; /* 8 32k periods */
- operating-points-v2 = <&cpu_opp_table>;
- #cooling-cells = <2>;
- };
-
- cpu3: cpu@3 {
- compatible = "arm,cortex-a53";
- device_type = "cpu";
- reg = <3>;
- enable-method = "psci";
- clocks = <&ccu CLK_CPUX>;
- clock-latency-ns = <244144>; /* 8 32k periods */
- operating-points-v2 = <&cpu_opp_table>;
- #cooling-cells = <2>;
- };
- };
-
- cpu_opp_table: opp_table {
- compatible = "allwinner,sun50i-h6-operating-points";
- nvmem-cells = <&speedbin_efuse>;
- opp-shared;
-
- opp@480000000 {
- clock-latency-ns = <244144>; /* 8 32k periods */
- opp-hz = /bits/ 64 <480000000>;
-
- opp-microvolt-speed0 = <880000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <800000>;
- };
-
- opp@720000000 {
- clock-latency-ns = <244144>; /* 8 32k periods */
- opp-hz = /bits/ 64 <720000000>;
-
- opp-microvolt-speed0 = <880000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <800000>;
- };
-
- opp@816000000 {
- clock-latency-ns = <244144>; /* 8 32k periods */
- opp-hz = /bits/ 64 <816000000>;
-
- opp-microvolt-speed0 = <880000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <800000>;
- };
-
- opp@888000000 {
- clock-latency-ns = <244144>; /* 8 32k periods */
- opp-hz = /bits/ 64 <888000000>;
-
- opp-microvolt-speed0 = <940000>;
- opp-microvolt-speed1 = <820000>;
- opp-microvolt-speed2 = <800000>;
- };
-
- opp@1080000000 {
- clock-latency-ns = <244144>; /* 8 32k periods */
- opp-hz = /bits/ 64 <1080000000>;
-
- opp-microvolt-speed0 = <1060000>;
- opp-microvolt-speed1 = <880000>;
- opp-microvolt-speed2 = <840000>;
- };
-
- opp@1320000000 {
- clock-latency-ns = <244144>; /* 8 32k periods */
- opp-hz = /bits/ 64 <1320000000>;
-
- opp-microvolt-speed0 = <1160000>;
- opp-microvolt-speed1 = <940000>;
- opp-microvolt-speed2 = <900000>;
- };
-
- opp@1488000000 {
- clock-latency-ns = <244144>; /* 8 32k periods */
- opp-hz = /bits/ 64 <1488000000>;
-
- opp-microvolt-speed0 = <1160000>;
- opp-microvolt-speed1 = <1000000>;
- opp-microvolt-speed2 = <960000>;
- };
- };
-....
-soc {
-....
- sid: sid@3006000 {
- compatible = "allwinner,sun50i-h6-sid";
- reg = <0x03006000 0x400>;
- #address-cells = <1>;
- #size-cells = <1>;
- ....
- speedbin_efuse: speed@1c {
- reg = <0x1c 4>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt b/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt
deleted file mode 100644
index f7514c170a32..000000000000
--- a/Documentation/devicetree/bindings/pci/arm,juno-r1-pcie.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-* ARM Juno R1 PCIe interface
-
-This PCIe host controller is based on PLDA XpressRICH3-AXI IP
-and thus inherits all the common properties defined in plda,xpressrich3-axi.txt
-as well as the base properties defined in host-generic-pci.txt.
-
-Required properties:
- - compatible: "arm,juno-r1-pcie"
- - dma-coherent: The host controller bridges the AXI transactions into PCIe bus
- in a manner that makes the DMA operations to appear coherent to the CPUs.
diff --git a/Documentation/devicetree/bindings/pci/designware-pcie-ecam.txt b/Documentation/devicetree/bindings/pci/designware-pcie-ecam.txt
deleted file mode 100644
index 515b2f9542e5..000000000000
--- a/Documentation/devicetree/bindings/pci/designware-pcie-ecam.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-* Synopsys DesignWare PCIe root complex in ECAM shift mode
-
-In some cases, firmware may already have configured the Synopsys DesignWare
-PCIe controller in RC mode with static ATU window mappings that cover all
-config, MMIO and I/O spaces in a [mostly] ECAM compatible fashion.
-In this case, there is no need for the OS to perform any low level setup
-of clocks, PHYs or device registers, nor is there any reason for the driver
-to reconfigure ATU windows for config and/or IO space accesses at runtime.
-
-In cases where the IP was synthesized with a minimum ATU window size of
-64 KB, it cannot be supported by the generic ECAM driver, because it
-requires special config space accessors that filter accesses to device #1
-and beyond on the first bus.
-
-Required properties:
-- compatible: "marvell,armada8k-pcie-ecam" or
- "socionext,synquacer-pcie-ecam" or
- "snps,dw-pcie-ecam" (must be preceded by a more specific match)
-
-Please refer to the binding document of "pci-host-ecam-generic" in the
-file host-generic-pci.txt for a description of the remaining required
-and optional properties.
-
-Example:
-
- pcie1: pcie@7f000000 {
- compatible = "socionext,synquacer-pcie-ecam", "snps,dw-pcie-ecam";
- device_type = "pci";
- reg = <0x0 0x7f000000 0x0 0xf00000>;
- bus-range = <0x0 0xe>;
- #address-cells = <3>;
- #size-cells = <2>;
- ranges = <0x1000000 0x00 0x00010000 0x00 0x7ff00000 0x0 0x00010000>,
- <0x2000000 0x00 0x70000000 0x00 0x70000000 0x0 0x0f000000>,
- <0x3000000 0x3f 0x00000000 0x3f 0x00000000 0x1 0x00000000>;
-
- #interrupt-cells = <0x1>;
- interrupt-map-mask = <0x0 0x0 0x0 0x0>;
- interrupt-map = <0x0 0x0 0x0 0x0 &gic 0x0 0x0 0x0 182 0x4>;
- msi-map = <0x0 &its 0x0 0x10000>;
- dma-coherent;
- };
diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
index 0dcb87d6554f..d6796ef54ea1 100644
--- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
@@ -41,45 +41,3 @@ Hip05 Example (note that Hip06 is the same except compatible):
0x0 0 0 3 &mbigen_pcie 3 12
0x0 0 0 4 &mbigen_pcie 4 13>;
};
-
-HiSilicon Hip06/Hip07 PCIe host bridge DT (almost-ECAM) description.
-
-Some BIOSes place the host controller in a mode where it is ECAM
-compliant for all devices other than the root complex. In such cases,
-the host controller should be described as below.
-
-The properties and their meanings are identical to those described in
-host-generic-pci.txt except as listed below.
-
-Properties of the host controller node that differ from
-host-generic-pci.txt:
-
-- compatible : Must be "hisilicon,hip06-pcie-ecam", or
- "hisilicon,hip07-pcie-ecam"
-
-- reg : Two entries: First the ECAM configuration space for any
- other bus underneath the root bus. Second, the base
- and size of the HiSilicon host bridge registers include
- the RC's own config space.
-
-Example:
- pcie0: pcie@a0090000 {
- compatible = "hisilicon,hip06-pcie-ecam";
- reg = <0 0xb0000000 0 0x2000000>, /* ECAM configuration space */
- <0 0xa0090000 0 0x10000>; /* host bridge registers */
- bus-range = <0 31>;
- msi-map = <0x0000 &its_dsa 0x0000 0x2000>;
- msi-map-mask = <0xffff>;
- #address-cells = <3>;
- #size-cells = <2>;
- device_type = "pci";
- dma-coherent;
- ranges = <0x02000000 0 0xb2000000 0x0 0xb2000000 0 0x5ff0000
- 0x01000000 0 0 0 0xb7ff0000 0 0x10000>;
- #interrupt-cells = <1>;
- interrupt-map-mask = <0xf800 0 0 7>;
- interrupt-map = <0x0 0 0 1 &mbigen_pcie0 650 4
- 0x0 0 0 2 &mbigen_pcie0 650 4
- 0x0 0 0 3 &mbigen_pcie0 650 4
- 0x0 0 0 4 &mbigen_pcie0 650 4>;
- };
diff --git a/Documentation/devicetree/bindings/pci/host-generic-pci.txt b/Documentation/devicetree/bindings/pci/host-generic-pci.txt
deleted file mode 100644
index 614b594f4e72..000000000000
--- a/Documentation/devicetree/bindings/pci/host-generic-pci.txt
+++ /dev/null
@@ -1,101 +0,0 @@
-* Generic PCI host controller
-
-Firmware-initialised PCI host controllers and PCI emulations, such as the
-virtio-pci implementations found in kvmtool and other para-virtualised
-systems, do not require driver support for complexities such as regulator
-and clock management. In fact, the controller may not even require the
-configuration of a control interface by the operating system, instead
-presenting a set of fixed windows describing a subset of IO, Memory and
-Configuration Spaces.
-
-Such a controller can be described purely in terms of the standardized device
-tree bindings communicated in pci.txt:
-
-
-Properties of the host controller node:
-
-- compatible : Must be "pci-host-cam-generic" or "pci-host-ecam-generic"
- depending on the layout of configuration space (CAM vs
- ECAM respectively).
-
-- device_type : Must be "pci".
-
-- ranges : As described in IEEE Std 1275-1994, but must provide
- at least a definition of non-prefetchable memory. One
- or both of prefetchable Memory and IO Space may also
- be provided.
-
-- bus-range : Optional property (also described in IEEE Std 1275-1994)
- to indicate the range of bus numbers for this controller.
- If absent, defaults to <0 255> (i.e. all buses).
-
-- #address-cells : Must be 3.
-
-- #size-cells : Must be 2.
-
-- reg : The Configuration Space base address and size, as accessed
- from the parent bus. The base address corresponds to
- the first bus in the "bus-range" property. If no
- "bus-range" is specified, this will be bus 0 (the default).
-
-Properties of the /chosen node:
-
-- linux,pci-probe-only
- : Optional property which takes a single-cell argument.
- If '0', then Linux will assign devices in its usual manner,
- otherwise it will not try to assign devices and instead use
- them as they are configured already.
-
-Configuration Space is assumed to be memory-mapped (as opposed to being
-accessed via an ioport) and laid out with a direct correspondence to the
-geography of a PCI bus address by concatenating the various components to
-form an offset.
-
-For CAM, this 24-bit offset is:
-
- cfg_offset(bus, device, function, register) =
- bus << 16 | device << 11 | function << 8 | register
-
-While ECAM extends this by 4 bits to accommodate 4k of function space:
-
- cfg_offset(bus, device, function, register) =
- bus << 20 | device << 15 | function << 12 | register
-
-Interrupt mapping is exactly as described in `Open Firmware Recommended
-Practice: Interrupt Mapping' and requires the following properties:
-
-- #interrupt-cells : Must be 1
-
-- interrupt-map : <see aforementioned specification>
-
-- interrupt-map-mask : <see aforementioned specification>
-
-
-Example:
-
-pci {
- compatible = "pci-host-cam-generic"
- device_type = "pci";
- #address-cells = <3>;
- #size-cells = <2>;
- bus-range = <0x0 0x1>;
-
- // CPU_PHYSICAL(2) SIZE(2)
- reg = <0x0 0x40000000 0x0 0x1000000>;
-
- // BUS_ADDRESS(3) CPU_PHYSICAL(2) SIZE(2)
- ranges = <0x01000000 0x0 0x01000000 0x0 0x01000000 0x0 0x00010000>,
- <0x02000000 0x0 0x41000000 0x0 0x41000000 0x0 0x3f000000>;
-
-
- #interrupt-cells = <0x1>;
-
- // PCI_DEVICE(3) INT#(1) CONTROLLER(PHANDLE) CONTROLLER_DATA(3)
- interrupt-map = < 0x0 0x0 0x0 0x1 &gic 0x0 0x4 0x1
- 0x800 0x0 0x0 0x1 &gic 0x0 0x5 0x1
- 0x1000 0x0 0x0 0x1 &gic 0x0 0x6 0x1
- 0x1800 0x0 0x0 0x1 &gic 0x0 0x7 0x1>;
-
- // PCI_DEVICE(3) INT#(1)
- interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
-}
diff --git a/Documentation/devicetree/bindings/pci/host-generic-pci.yaml b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
new file mode 100644
index 000000000000..47353d0cd394
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
@@ -0,0 +1,172 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/host-generic-pci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic PCI host controller
+
+maintainers:
+ - Will Deacon <will@kernel.org>
+
+description: |
+ Firmware-initialised PCI host controllers and PCI emulations, such as the
+ virtio-pci implementations found in kvmtool and other para-virtualised
+ systems, do not require driver support for complexities such as regulator
+ and clock management. In fact, the controller may not even require the
+ configuration of a control interface by the operating system, instead
+ presenting a set of fixed windows describing a subset of IO, Memory and
+ Configuration Spaces.
+
+ Configuration Space is assumed to be memory-mapped (as opposed to being
+ accessed via an ioport) and laid out with a direct correspondence to the
+ geography of a PCI bus address by concatenating the various components to
+ form an offset.
+
+ For CAM, this 24-bit offset is:
+
+ cfg_offset(bus, device, function, register) =
+ bus << 16 | device << 11 | function << 8 | register
+
+ While ECAM extends this by 4 bits to accommodate 4k of function space:
+
+ cfg_offset(bus, device, function, register) =
+ bus << 20 | device << 15 | function << 12 | register
+
+properties:
+ compatible:
+ description: Depends on the layout of configuration space (CAM vs ECAM
+ respectively). May also have more specific compatibles.
+ oneOf:
+ - description:
+ PCIe host controller in Arm Juno based on PLDA XpressRICH3-AXI IP
+ items:
+ - const: arm,juno-r1-pcie
+ - const: plda,xpressrich3-axi
+ - const: pci-host-ecam-generic
+ - description: |
+ ThunderX PCI host controller for pass-1.x silicon
+
+ Firmware-initialized PCI host controller to on-chip devices found on
+ some Cavium ThunderX processors. These devices have ECAM-based config
+ access, but the BARs are all at fixed addresses. We handle the fixed
+ addresses by synthesizing Enhanced Allocation (EA) capabilities for
+ these devices.
+ const: cavium,pci-host-thunder-ecam
+ - description:
+ Cavium ThunderX PEM firmware-initialized PCIe host controller
+ const: cavium,pci-host-thunder-pem
+ - description:
+ HiSilicon Hip06/Hip07 PCIe host bridge in almost-ECAM mode. Some
+ firmware places the host controller in a mode where it is ECAM
+ compliant for all devices other than the root complex.
+ enum:
+ - hisilicon,hip06-pcie-ecam
+ - hisilicon,hip07-pcie-ecam
+ - description: |
+ In some cases, firmware may already have configured the Synopsys
+ DesignWare PCIe controller in RC mode with static ATU window mappings
+ that cover all config, MMIO and I/O spaces in a [mostly] ECAM
+ compatible fashion. In this case, there is no need for the OS to
+ perform any low level setup of clocks, PHYs or device registers, nor
+ is there any reason for the driver to reconfigure ATU windows for
+ config and/or IO space accesses at runtime.
+
+ In cases where the IP was synthesized with a minimum ATU window size
+ of 64 KB, it cannot be supported by the generic ECAM driver, because
+ it requires special config space accessors that filter accesses to
+ device #1 and beyond on the first bus.
+ items:
+ - enum:
+ - marvell,armada8k-pcie-ecam
+ - socionext,synquacer-pcie-ecam
+ - const: snps,dw-pcie-ecam
+ - description:
+ CAM or ECAM compliant PCI host controllers without any quirks
+ enum:
+ - pci-host-cam-generic
+ - pci-host-ecam-generic
+
+ reg:
+ description:
+ The Configuration Space base address and size, as accessed from the parent
+ bus. The base address corresponds to the first bus in the "bus-range"
+ property. If no "bus-range" is specified, this will be bus 0 (the
+ default). Some host controllers have a 2nd non-compliant address range,
+ so 2 entries are allowed.
+ minItems: 1
+ maxItems: 2
+
+ ranges:
+ description:
+ As described in IEEE Std 1275-1994, but must provide at least a
+ definition of non-prefetchable memory. One or both of prefetchable Memory
+ and IO Space may also be provided.
+ minItems: 1
+ maxItems: 3
+
+ dma-coherent: true
+
+required:
+ - compatible
+ - reg
+ - ranges
+
+allOf:
+ - $ref: /schemas/pci/pci-bus.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: arm,juno-r1-pcie
+ then:
+ required:
+ - dma-coherent
+
+ - if:
+ properties:
+ compatible:
+ not:
+ contains:
+ enum:
+ - cavium,pci-host-thunder-pem
+ - hisilicon,hip06-pcie-ecam
+ - hisilicon,hip07-pcie-ecam
+ then:
+ properties:
+ reg:
+ maxItems: 1
+
+examples:
+ - |
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ pcie@40000000 {
+ compatible = "pci-host-cam-generic";
+ device_type = "pci";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ bus-range = <0x0 0x1>;
+
+ // CPU_PHYSICAL(2) SIZE(2)
+ reg = <0x0 0x40000000 0x0 0x1000000>;
+
+ // BUS_ADDRESS(3) CPU_PHYSICAL(2) SIZE(2)
+ ranges = <0x01000000 0x0 0x01000000 0x0 0x01000000 0x0 0x00010000>,
+ <0x02000000 0x0 0x41000000 0x0 0x41000000 0x0 0x3f000000>;
+
+ #interrupt-cells = <0x1>;
+
+ // PCI_DEVICE(3) INT#(1) CONTROLLER(PHANDLE) CONTROLLER_DATA(3)
+ interrupt-map = < 0x0 0x0 0x0 0x1 &gic 0x0 0x4 0x1>,
+ < 0x800 0x0 0x0 0x1 &gic 0x0 0x5 0x1>,
+ <0x1000 0x0 0x0 0x1 &gic 0x0 0x6 0x1>,
+ <0x1800 0x0 0x0 0x1 &gic 0x0 0x7 0x1>;
+
+ // PCI_DEVICE(3) INT#(1)
+ interrupt-map-mask = <0xf800 0x0 0x0 0x7>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/pci/pci-thunder-ecam.txt b/Documentation/devicetree/bindings/pci/pci-thunder-ecam.txt
deleted file mode 100644
index f478874b79ce..000000000000
--- a/Documentation/devicetree/bindings/pci/pci-thunder-ecam.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-* ThunderX PCI host controller for pass-1.x silicon
-
-Firmware-initialized PCI host controller to on-chip devices found on
-some Cavium ThunderX processors. These devices have ECAM-based config
-access, but the BARs are all at fixed addresses. We handle the fixed
-addresses by synthesizing Enhanced Allocation (EA) capabilities for
-these devices.
-
-The properties and their meanings are identical to those described in
-host-generic-pci.txt except as listed below.
-
-Properties of the host controller node that differ from
-host-generic-pci.txt:
-
-- compatible : Must be "cavium,pci-host-thunder-ecam"
-
-Example:
-
- pcie@84b000000000 {
- compatible = "cavium,pci-host-thunder-ecam";
- device_type = "pci";
- msi-parent = <&its>;
- msi-map = <0 &its 0x30000 0x10000>;
- bus-range = <0 31>;
- #size-cells = <2>;
- #address-cells = <3>;
- #stream-id-cells = <1>;
- reg = <0x84b0 0x00000000 0 0x02000000>; /* Configuration space */
- ranges = <0x03000000 0x8180 0x00000000 0x8180 0x00000000 0x80 0x00000000>; /* mem ranges */
- };
diff --git a/Documentation/devicetree/bindings/pci/pci-thunder-pem.txt b/Documentation/devicetree/bindings/pci/pci-thunder-pem.txt
deleted file mode 100644
index f131faea3b7c..000000000000
--- a/Documentation/devicetree/bindings/pci/pci-thunder-pem.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-* ThunderX PEM PCIe host controller
-
-Firmware-initialized PCI host controller found on some Cavium
-ThunderX processors.
-
-The properties and their meanings are identical to those described in
-host-generic-pci.txt except as listed below.
-
-Properties of the host controller node that differ from
-host-generic-pci.txt:
-
-- compatible : Must be "cavium,pci-host-thunder-pem"
-
-- reg : Two entries: First the configuration space for down
- stream devices base address and size, as accessed
- from the parent bus. Second, the register bank of
- the PEM device PCIe bridge.
-
-Example:
-
- pci@87e0,c2000000 {
- compatible = "cavium,pci-host-thunder-pem";
- device_type = "pci";
- msi-parent = <&its>;
- msi-map = <0 &its 0x10000 0x10000>;
- bus-range = <0x8f 0xc7>;
- #size-cells = <2>;
- #address-cells = <3>;
-
- reg = <0x8880 0x8f000000 0x0 0x39000000>, /* Configuration space */
- <0x87e0 0xc2000000 0x0 0x00010000>; /* PEM space */
- ranges = <0x01000000 0x00 0x00020000 0x88b0 0x00020000 0x00 0x00010000>, /* I/O */
- <0x03000000 0x00 0x10000000 0x8890 0x10000000 0x0f 0xf0000000>, /* mem64 */
- <0x43000000 0x10 0x00000000 0x88a0 0x00000000 0x10 0x00000000>, /* mem64-pref */
- <0x03000000 0x87e0 0xc2f00000 0x87e0 0xc2000000 0x00 0x00100000>; /* mem64 PEM BAR4 */
-
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 7>;
- interrupt-map = <0 0 0 1 &gic0 0 0 0 24 4>, /* INTA */
- <0 0 0 2 &gic0 0 0 0 25 4>, /* INTB */
- <0 0 0 3 &gic0 0 0 0 26 4>, /* INTC */
- <0 0 0 4 &gic0 0 0 0 27 4>; /* INTD */
- };
diff --git a/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt b/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt
deleted file mode 100644
index f3f75bfb42bc..000000000000
--- a/Documentation/devicetree/bindings/pci/plda,xpressrich3-axi.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-* PLDA XpressRICH3-AXI host controller
-
-The PLDA XpressRICH3-AXI host controller can be configured in a manner that
-makes it compliant with the SBSA[1] standard published by ARM Ltd. For those
-scenarios, the host-generic-pci.txt bindings apply with the following additions
-to the compatible property:
-
-Required properties:
- - compatible: should contain "plda,xpressrich3-axi" to identify the IP used.
-
-
-[1] http://infocenter.arm.com/help/topic/com.arm.doc.den0029a/
diff --git a/Documentation/devicetree/bindings/pci/versatile.txt b/Documentation/devicetree/bindings/pci/versatile.txt
deleted file mode 100644
index 0a702b13d2ac..000000000000
--- a/Documentation/devicetree/bindings/pci/versatile.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-* ARM Versatile Platform Baseboard PCI interface
-
-PCI host controller found on the ARM Versatile PB board's FPGA.
-
-Required properties:
-- compatible: should contain "arm,versatile-pci" to identify the Versatile PCI
- controller.
-- reg: base addresses and lengths of the PCI controller. There must be 3
- entries:
- - Versatile-specific registers
- - Self Config space
- - Config space
-- #address-cells: set to <3>
-- #size-cells: set to <2>
-- device_type: set to "pci"
-- bus-range: set to <0 0xff>
-- ranges: ranges for the PCI memory and I/O regions
-- #interrupt-cells: set to <1>
-- interrupt-map-mask and interrupt-map: standard PCI properties to define
- the mapping of the PCI interface to interrupt numbers.
-
-Example:
-
-pci-controller@10001000 {
- compatible = "arm,versatile-pci";
- device_type = "pci";
- reg = <0x10001000 0x1000
- 0x41000000 0x10000
- 0x42000000 0x100000>;
- bus-range = <0 0xff>;
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
-
- ranges = <0x01000000 0 0x00000000 0x43000000 0 0x00010000 /* downstream I/O */
- 0x02000000 0 0x50000000 0x50000000 0 0x10000000 /* non-prefetchable memory */
- 0x42000000 0 0x60000000 0x60000000 0 0x10000000>; /* prefetchable memory */
-
- interrupt-map-mask = <0x1800 0 0 7>;
- interrupt-map = <0x1800 0 0 1 &sic 28
- 0x1800 0 0 2 &sic 29
- 0x1800 0 0 3 &sic 30
- 0x1800 0 0 4 &sic 27
-
- 0x1000 0 0 1 &sic 27
- 0x1000 0 0 2 &sic 28
- 0x1000 0 0 3 &sic 29
- 0x1000 0 0 4 &sic 30
-
- 0x0800 0 0 1 &sic 30
- 0x0800 0 0 2 &sic 27
- 0x0800 0 0 3 &sic 28
- 0x0800 0 0 4 &sic 29
-
- 0x0000 0 0 1 &sic 29
- 0x0000 0 0 2 &sic 30
- 0x0000 0 0 3 &sic 27
- 0x0000 0 0 4 &sic 28>;
-};
diff --git a/Documentation/devicetree/bindings/pci/versatile.yaml b/Documentation/devicetree/bindings/pci/versatile.yaml
new file mode 100644
index 000000000000..07a48c27db1f
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/versatile.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/versatile.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Versatile Platform Baseboard PCI interface
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+description: |+
+ PCI host controller found on the ARM Versatile PB board's FPGA.
+
+allOf:
+ - $ref: /schemas/pci/pci-bus.yaml#
+
+properties:
+ compatible:
+ const: arm,versatile-pci
+
+ reg:
+ items:
+ - description: Versatile-specific registers
+ - description: Self Config space
+ - description: Config space
+
+ ranges:
+ maxItems: 3
+
+ "#interrupt-cells": true
+
+ interrupt-map:
+ maxItems: 16
+
+ interrupt-map-mask:
+ items:
+ - const: 0x1800
+ - const: 0
+ - const: 0
+ - const: 7
+
+required:
+ - compatible
+ - reg
+ - ranges
+ - "#interrupt-cells"
+ - interrupt-map
+ - interrupt-map-mask
+
+examples:
+ - |
+ pci@10001000 {
+ compatible = "arm,versatile-pci";
+ device_type = "pci";
+ reg = <0x10001000 0x1000>,
+ <0x41000000 0x10000>,
+ <0x42000000 0x100000>;
+ bus-range = <0 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+
+ ranges =
+ <0x01000000 0 0x00000000 0x43000000 0 0x00010000>, /* downstream I/O */
+ <0x02000000 0 0x50000000 0x50000000 0 0x10000000>, /* non-prefetchable memory */
+ <0x42000000 0 0x60000000 0x60000000 0 0x10000000>; /* prefetchable memory */
+
+ interrupt-map-mask = <0x1800 0 0 7>;
+ interrupt-map = <0x1800 0 0 1 &sic 28>,
+ <0x1800 0 0 2 &sic 29>,
+ <0x1800 0 0 3 &sic 30>,
+ <0x1800 0 0 4 &sic 27>,
+
+ <0x1000 0 0 1 &sic 27>,
+ <0x1000 0 0 2 &sic 28>,
+ <0x1000 0 0 3 &sic 29>,
+ <0x1000 0 0 4 &sic 30>,
+
+ <0x0800 0 0 1 &sic 30>,
+ <0x0800 0 0 2 &sic 27>,
+ <0x0800 0 0 3 &sic 28>,
+ <0x0800 0 0 4 &sic 29>,
+
+ <0x0000 0 0 1 &sic 29>,
+ <0x0000 0 0 2 &sic 30>,
+ <0x0000 0 0 3 &sic 27>,
+ <0x0000 0 0 4 &sic 28>;
+ };
+
+
+...
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
new file mode 100644
index 000000000000..020ef9e4c411
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun4i-a10-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-usb-phy
+ - allwinner,sun7i-a20-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU1 registers
+ - description: PHY PMU2 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu1
+ - const: pmu2
+
+ clocks:
+ maxItems: 1
+ description: USB PHY bus clock
+
+ clock-names:
+ const: usb_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+ - description: USB Host 2 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+ - const: usb2_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+ usb2_vbus-supply:
+ description: Regulator controlling USB2 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun4i-a10-ccu.h>
+ #include <dt-bindings/reset/sun4i-a10-ccu.h>
+
+ usbphy: phy@01c13400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun4i-a10-usb-phy";
+ reg = <0x01c13400 0x10>, <0x01c14800 0x4>, <0x01c1c800 0x4>;
+ reg-names = "phy_ctrl", "pmu1", "pmu2";
+ clocks = <&ccu CLK_USB_PHY>;
+ clock-names = "usb_phy";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>,
+ <&ccu RST_USB_PHY2>;
+ reset-names = "usb0_reset", "usb1_reset", "usb2_reset";
+ usb0_id_det-gpios = <&pio 7 19 GPIO_ACTIVE_HIGH>;
+ usb0_vbus_det-gpios = <&pio 7 22 GPIO_ACTIVE_HIGH>;
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ usb2_vbus-supply = <&reg_usb2_vbus>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
new file mode 100644
index 000000000000..fd6e126fcf18
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
@@ -0,0 +1,106 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun50i-a64-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A64 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun50i-a64-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU0 registers
+ - description: PHY PMU1 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu0
+ - const: pmu1
+
+ clocks:
+ items:
+ - description: USB OTG PHY bus clock
+ - description: USB Host 0 PHY bus clock
+
+ clock-names:
+ items:
+ - const: usb0_phy
+ - const: usb1_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun50i-a64-ccu.h>
+ #include <dt-bindings/reset/sun50i-a64-ccu.h>
+
+ phy@1c19400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun50i-a64-usb-phy";
+ reg = <0x01c19400 0x14>,
+ <0x01c1a800 0x4>,
+ <0x01c1b800 0x4>;
+ reg-names = "phy_ctrl",
+ "pmu0",
+ "pmu1";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY1>;
+ clock-names = "usb0_phy",
+ "usb1_phy";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>;
+ reset-names = "usb0_reset",
+ "usb1_reset";
+ usb0_id_det-gpios = <&pio 7 9 GPIO_ACTIVE_HIGH>; /* PH9 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
+ usb0_vbus-supply = <&reg_drivevbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml
new file mode 100644
index 000000000000..7670411002c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun50i-h6-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner H6 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun50i-h6-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU0 registers
+ - description: PHY PMU3 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu0
+ - const: pmu3
+
+ clocks:
+ items:
+ - description: USB OTG PHY bus clock
+ - description: USB Host PHY bus clock
+
+ clock-names:
+ items:
+ - const: usb0_phy
+ - const: usb3_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb3_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb3_vbus-supply:
+ description: Regulator controlling USB3 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun50i-h6-ccu.h>
+ #include <dt-bindings/reset/sun50i-h6-ccu.h>
+
+ phy@5100400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun50i-h6-usb-phy";
+ reg = <0x05100400 0x24>,
+ <0x05101800 0x4>,
+ <0x05311800 0x4>;
+ reg-names = "phy_ctrl",
+ "pmu0",
+ "pmu3";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY3>;
+ clock-names = "usb0_phy",
+ "usb3_phy";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY3>;
+ reset-names = "usb0_reset",
+ "usb3_reset";
+ usb0_id_det-gpios = <&pio 2 6 GPIO_ACTIVE_HIGH>; /* PC6 */
+ usb0_vbus-supply = <&reg_vcc5v>;
+ usb3_vbus-supply = <&reg_vcc5v>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml
new file mode 100644
index 000000000000..9b319381d1ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun5i-a13-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A13 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun5i-a13-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU1 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu1
+
+ clocks:
+ maxItems: 1
+ description: USB OTG PHY bus clock
+
+ clock-names:
+ const: usb_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun5i-ccu.h>
+ #include <dt-bindings/reset/sun5i-ccu.h>
+
+ phy@1c13400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun5i-a13-usb-phy";
+ reg = <0x01c13400 0x10>, <0x01c14800 0x4>;
+ reg-names = "phy_ctrl", "pmu1";
+ clocks = <&ccu CLK_USB_PHY0>;
+ clock-names = "usb_phy";
+ resets = <&ccu RST_USB_PHY0>, <&ccu RST_USB_PHY1>;
+ reset-names = "usb0_reset", "usb1_reset";
+ usb0_id_det-gpios = <&pio 6 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PG2 */
+ usb0_vbus_det-gpios = <&pio 6 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; /* PG1 */
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
index 230d74f22136..d0b541a461f3 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
@@ -15,7 +15,11 @@ properties:
const: 0
compatible:
- const: allwinner,sun6i-a31-mipi-dphy
+ oneOf:
+ - const: allwinner,sun6i-a31-mipi-dphy
+ - items:
+ - const: allwinner,sun50i-a64-mipi-dphy
+ - const: allwinner,sun6i-a31-mipi-dphy
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml
new file mode 100644
index 000000000000..b0ed01bbf3db
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml
@@ -0,0 +1,119 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun6i-a31-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun6i-a31-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU1 registers
+ - description: PHY PMU2 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu1
+ - const: pmu2
+
+ clocks:
+ items:
+ - description: USB OTG PHY bus clock
+ - description: USB Host 0 PHY bus clock
+ - description: USB Host 1 PHY bus clock
+
+ clock-names:
+ items:
+ - const: usb0_phy
+ - const: usb1_phy
+ - const: usb2_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+ - description: USB Host 2 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+ - const: usb2_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+ usb2_vbus-supply:
+ description: Regulator controlling USB2 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun6i-a31-ccu.h>
+ #include <dt-bindings/reset/sun6i-a31-ccu.h>
+
+ phy@1c19400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun6i-a31-usb-phy";
+ reg = <0x01c19400 0x10>,
+ <0x01c1a800 0x4>,
+ <0x01c1b800 0x4>;
+ reg-names = "phy_ctrl",
+ "pmu1",
+ "pmu2";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY1>,
+ <&ccu CLK_USB_PHY2>;
+ clock-names = "usb0_phy",
+ "usb1_phy",
+ "usb2_phy";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>,
+ <&ccu RST_USB_PHY2>;
+ reset-names = "usb0_reset",
+ "usb1_reset",
+ "usb2_reset";
+ usb0_id_det-gpios = <&pio 0 15 GPIO_ACTIVE_HIGH>; /* PA15 */
+ usb0_vbus_det-gpios = <&pio 0 16 GPIO_ACTIVE_HIGH>; /* PA16 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
+ usb0_vbus-supply = <&reg_drivevbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ usb2_vbus-supply = <&reg_usb2_vbus>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml
new file mode 100644
index 000000000000..b0674406f8aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun8i-a23-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A23 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ enum:
+ - allwinner,sun8i-a23-usb-phy
+ - allwinner,sun8i-a33-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU1 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu1
+
+ clocks:
+ items:
+ - description: USB OTG PHY bus clock
+ - description: USB Host 0 PHY bus clock
+
+ clock-names:
+ items:
+ - const: usb0_phy
+ - const: usb1_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
+ #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>
+
+ phy@1c19400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun8i-a23-usb-phy";
+ reg = <0x01c19400 0x10>, <0x01c1a800 0x4>;
+ reg-names = "phy_ctrl", "pmu1";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY1>;
+ clock-names = "usb0_phy",
+ "usb1_phy";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>;
+ reset-names = "usb0_reset",
+ "usb1_reset";
+ usb0_id_det-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
+ usb0_vbus-supply = <&reg_drivevbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml
new file mode 100644
index 000000000000..48dc9c834a9b
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml
@@ -0,0 +1,122 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun8i-a83t-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A83t USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun8i-a83t-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU1 registers
+ - description: PHY PMU2 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu1
+ - const: pmu2
+
+ clocks:
+ items:
+ - description: USB OTG PHY bus clock
+ - description: USB Host 0 PHY bus clock
+ - description: USB Host 1 PHY bus clock
+ - description: USB HSIC 12MHz clock
+
+ clock-names:
+ items:
+ - const: usb0_phy
+ - const: usb1_phy
+ - const: usb2_phy
+ - const: usb2_hsic_12M
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+ - description: USB Host 2 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+ - const: usb2_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+ usb2_vbus-supply:
+ description: Regulator controlling USB2 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun8i-a83t-ccu.h>
+ #include <dt-bindings/reset/sun8i-a83t-ccu.h>
+
+ phy@1c19400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun8i-a83t-usb-phy";
+ reg = <0x01c19400 0x10>,
+ <0x01c1a800 0x14>,
+ <0x01c1b800 0x14>;
+ reg-names = "phy_ctrl",
+ "pmu1",
+ "pmu2";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY1>,
+ <&ccu CLK_USB_HSIC>,
+ <&ccu CLK_USB_HSIC_12M>;
+ clock-names = "usb0_phy",
+ "usb1_phy",
+ "usb2_phy",
+ "usb2_hsic_12M";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>,
+ <&ccu RST_USB_HSIC>;
+ reset-names = "usb0_reset",
+ "usb1_reset",
+ "usb2_reset";
+ usb0_id_det-gpios = <&pio 7 11 GPIO_ACTIVE_HIGH>; /* PH11 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
+ usb0_vbus-supply = <&reg_drivevbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ usb2_vbus-supply = <&reg_usb2_vbus>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml
new file mode 100644
index 000000000000..60c344585276
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml
@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun8i-h3-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner H3 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun8i-h3-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU0 registers
+ - description: PHY PMU1 registers
+ - description: PHY PMU2 registers
+ - description: PHY PMU3 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu0
+ - const: pmu1
+ - const: pmu2
+ - const: pmu3
+
+ clocks:
+ items:
+ - description: USB OTG PHY bus clock
+ - description: USB Host 0 PHY bus clock
+ - description: USB Host 1 PHY bus clock
+ - description: USB Host 2 PHY bus clock
+
+ clock-names:
+ items:
+ - const: usb0_phy
+ - const: usb1_phy
+ - const: usb2_phy
+ - const: usb3_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+ - description: USB Host 2 Controller reset
+ - description: USB Host 3 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+ - const: usb2_reset
+ - const: usb3_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+ usb2_vbus-supply:
+ description: Regulator controlling USB2 Host controller
+
+ usb3_vbus-supply:
+ description: Regulator controlling USB3 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun8i-h3-ccu.h>
+ #include <dt-bindings/reset/sun8i-h3-ccu.h>
+
+ phy@1c19400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun8i-h3-usb-phy";
+ reg = <0x01c19400 0x2c>,
+ <0x01c1a800 0x4>,
+ <0x01c1b800 0x4>,
+ <0x01c1c800 0x4>,
+ <0x01c1d800 0x4>;
+ reg-names = "phy_ctrl",
+ "pmu0",
+ "pmu1",
+ "pmu2",
+ "pmu3";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY1>,
+ <&ccu CLK_USB_PHY2>,
+ <&ccu CLK_USB_PHY3>;
+ clock-names = "usb0_phy",
+ "usb1_phy",
+ "usb2_phy",
+ "usb3_phy";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>,
+ <&ccu RST_USB_PHY2>,
+ <&ccu RST_USB_PHY3>;
+ reset-names = "usb0_reset",
+ "usb1_reset",
+ "usb2_reset",
+ "usb3_reset";
+ usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+ usb0_vbus-supply = <&reg_usb0_vbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ usb2_vbus-supply = <&reg_usb2_vbus>;
+ usb3_vbus-supply = <&reg_usb3_vbus>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml
new file mode 100644
index 000000000000..a2bb36790fbd
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml
@@ -0,0 +1,119 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun8i-r40-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner R40 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun8i-r40-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU0 registers
+ - description: PHY PMU1 registers
+ - description: PHY PMU2 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu0
+ - const: pmu1
+ - const: pmu2
+
+ clocks:
+ items:
+ - description: USB OTG PHY bus clock
+ - description: USB Host 0 PHY bus clock
+ - description: USB Host 1 PHY bus clock
+
+ clock-names:
+ items:
+ - const: usb0_phy
+ - const: usb1_phy
+ - const: usb2_phy
+
+ resets:
+ items:
+ - description: USB OTG reset
+ - description: USB Host 1 Controller reset
+ - description: USB Host 2 Controller reset
+
+ reset-names:
+ items:
+ - const: usb0_reset
+ - const: usb1_reset
+ - const: usb2_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+ usb1_vbus-supply:
+ description: Regulator controlling USB1 Host controller
+
+ usb2_vbus-supply:
+ description: Regulator controlling USB2 Host controller
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun8i-r40-ccu.h>
+ #include <dt-bindings/reset/sun8i-r40-ccu.h>
+
+ phy@1c13400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun8i-r40-usb-phy";
+ reg = <0x01c13400 0x14>,
+ <0x01c14800 0x4>,
+ <0x01c19800 0x4>,
+ <0x01c1c800 0x4>;
+ reg-names = "phy_ctrl",
+ "pmu0",
+ "pmu1",
+ "pmu2";
+ clocks = <&ccu CLK_USB_PHY0>,
+ <&ccu CLK_USB_PHY1>,
+ <&ccu CLK_USB_PHY2>;
+ clock-names = "usb0_phy",
+ "usb1_phy",
+ "usb2_phy";
+ resets = <&ccu RST_USB_PHY0>,
+ <&ccu RST_USB_PHY1>,
+ <&ccu RST_USB_PHY2>;
+ reset-names = "usb0_reset",
+ "usb1_reset",
+ "usb2_reset";
+ usb1_vbus-supply = <&reg_vcc5v0>;
+ usb2_vbus-supply = <&reg_vcc5v0>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml
new file mode 100644
index 000000000000..eadfd0c9493c
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun8i-v3s-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner V3s USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 1
+
+ compatible:
+ const: allwinner,sun8i-v3s-usb-phy
+
+ reg:
+ items:
+ - description: PHY Control registers
+ - description: PHY PMU0 registers
+
+ reg-names:
+ items:
+ - const: phy_ctrl
+ - const: pmu0
+
+ clocks:
+ maxItems: 1
+ description: USB OTG PHY bus clock
+
+ clock-names:
+ const: usb0_phy
+
+ resets:
+ maxItems: 1
+ description: USB OTG reset
+
+ reset-names:
+ const: usb0_reset
+
+ usb0_id_det-gpios:
+ description: GPIO to the USB OTG ID pin
+
+ usb0_vbus_det-gpios:
+ description: GPIO to the USB OTG VBUS detect pin
+
+ usb0_vbus_power-supply:
+ description: Power supply to detect the USB OTG VBUS
+
+ usb0_vbus-supply:
+ description: Regulator controlling USB OTG VBUS
+
+required:
+ - "#phy-cells"
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/sun8i-v3s-ccu.h>
+ #include <dt-bindings/reset/sun8i-v3s-ccu.h>
+
+ phy@1c19400 {
+ #phy-cells = <1>;
+ compatible = "allwinner,sun8i-v3s-usb-phy";
+ reg = <0x01c19400 0x2c>,
+ <0x01c1a800 0x4>;
+ reg-names = "phy_ctrl",
+ "pmu0";
+ clocks = <&ccu CLK_USB_PHY0>;
+ clock-names = "usb0_phy";
+ resets = <&ccu RST_USB_PHY0>;
+ reset-names = "usb0_reset";
+ usb0_id_det-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml
new file mode 100644
index 000000000000..ded7d6f0a119
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml
@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/allwinner,sun9i-a80-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A80 USB PHY Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#phy-cells":
+ const: 0
+
+ compatible:
+ const: allwinner,sun9i-a80-usb-phy
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ anyOf:
+ - description: Main PHY Clock
+
+ - items:
+ - description: Main PHY clock
+ - description: HSIC 12MHz clock
+ - description: HSIC 480MHz clock
+
+ clock-names:
+ oneOf:
+ - const: phy
+
+ - items:
+ - const: phy
+ - const: hsic_12M
+ - const: hsic_480M
+
+ resets:
+ anyOf:
+ - description: Normal USB PHY reset
+
+ - items:
+ - description: Normal USB PHY reset
+ - description: HSIC Reset
+
+ reset-names:
+ oneOf:
+ - const: phy
+
+ - items:
+ - const: phy
+ - const: hsic
+
+ phy_type:
+ const: hsic
+ description:
+ When absent, the PHY type will be assumed to be normal USB.
+
+ phy-supply:
+ description:
+ Regulator that powers VBUS
+
+required:
+ - "#phy-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+if:
+ properties:
+ phy_type:
+ const: hsic
+
+ required:
+ - phy_type
+
+then:
+ properties:
+ clocks:
+ maxItems: 3
+
+ clock-names:
+ maxItems: 3
+
+ resets:
+ maxItems: 2
+
+ reset-names:
+ maxItems: 2
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun9i-a80-usb.h>
+ #include <dt-bindings/reset/sun9i-a80-usb.h>
+
+ usbphy1: phy@a00800 {
+ compatible = "allwinner,sun9i-a80-usb-phy";
+ reg = <0x00a00800 0x4>;
+ clocks = <&usb_clocks CLK_USB0_PHY>;
+ clock-names = "phy";
+ resets = <&usb_clocks RST_USB0_PHY>;
+ reset-names = "phy";
+ phy-supply = <&reg_usb1_vbus>;
+ #phy-cells = <0>;
+ };
+
+ - |
+ #include <dt-bindings/clock/sun9i-a80-usb.h>
+ #include <dt-bindings/reset/sun9i-a80-usb.h>
+
+ usbphy3: phy@a02800 {
+ compatible = "allwinner,sun9i-a80-usb-phy";
+ reg = <0x00a02800 0x4>;
+ clocks = <&usb_clocks CLK_USB2_PHY>,
+ <&usb_clocks CLK_USB_HSIC>,
+ <&usb_clocks CLK_USB2_HSIC>;
+ clock-names = "phy",
+ "hsic_12M",
+ "hsic_480M";
+ resets = <&usb_clocks RST_USB2_PHY>,
+ <&usb_clocks RST_USB2_HSIC>;
+ reset-names = "phy",
+ "hsic";
+ phy_type = "hsic";
+ phy-supply = <&reg_usb3_vbus>;
+ #phy-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
index 24a0d06acd1d..698aacbdcfc4 100644
--- a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
+++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
@@ -1,30 +1,49 @@
Broadcom STB USB PHY
Required properties:
- - compatible: brcm,brcmstb-usb-phy
- - reg: two offset and length pairs.
- The first pair specifies a manditory set of memory mapped
- registers used for general control of the PHY.
- The second pair specifies optional registers used by some of
- the SoCs that support USB 3.x
- - #phy-cells: Shall be 1 as it expects one argument for setting
- the type of the PHY. Possible values are:
- - PHY_TYPE_USB2 for USB1.1/2.0 PHY
- - PHY_TYPE_USB3 for USB3.x PHY
+- compatible: should be one of
+ "brcm,brcmstb-usb-phy"
+ "brcm,bcm7216-usb-phy"
+ "brcm,bcm7211-usb-phy"
+
+- reg and reg-names properties requirements are specific to the
+ compatible string.
+ "brcm,brcmstb-usb-phy":
+ - reg: 1 or 2 offset and length pairs. One for the base CTRL registers
+ and an optional pair for systems with USB 3.x support
+ - reg-names: not specified
+ "brcm,bcm7216-usb-phy":
+ - reg: 3 offset and length pairs for CTRL, XHCI_EC and XHCI_GBL
+ registers
+ - reg-names: "ctrl", "xhci_ec", "xhci_gbl"
+ "brcm,bcm7211-usb-phy":
+ - reg: 5 offset and length pairs for CTRL, XHCI_EC, XHCI_GBL,
+ USB_PHY and USB_MDIO registers and an optional pair
+ for the BDC registers
+ - reg-names: "ctrl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec"
+
+- #phy-cells: Shall be 1 as it expects one argument for setting
+ the type of the PHY. Possible values are:
+ - PHY_TYPE_USB2 for USB1.1/2.0 PHY
+ - PHY_TYPE_USB3 for USB3.x PHY
Optional Properties:
- clocks : clock phandles.
- clock-names: String, clock name.
+- interrupts: wakeup interrupt
+- interrupt-names: "wakeup"
- brcm,ipp: Boolean, Invert Port Power.
Possible values are: 0 (Don't invert), 1 (Invert)
- brcm,ioc: Boolean, Invert Over Current detection.
Possible values are: 0 (Don't invert), 1 (Invert)
-NOTE: one or both of the following two properties must be set
-- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
-- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
- dr_mode: String, PHY Device mode.
Possible values are: "host", "peripheral ", "drd" or "typec-pd"
If this property is not defined, the phy will default to "host" mode.
+- brcm,syscon-piarbctl: phandle to syscon for handling config registers
+NOTE: one or both of the following two properties must be set
+- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
+- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
+
Example:
@@ -41,3 +60,27 @@ usbphy_0: usb-phy@f0470200 {
clocks = <&usb20>, <&usb30>;
clock-names = "sw_usb", "sw_usb3";
};
+
+usb-phy@29f0200 {
+ reg = <0x29f0200 0x200>,
+ <0x29c0880 0x30>,
+ <0x29cc100 0x534>,
+ <0x2808000 0x24>,
+ <0x2980080 0x8>;
+ reg-names = "ctrl",
+ "xhci_ec",
+ "xhci_gbl",
+ "usb_phy",
+ "usb_mdio";
+ brcm,ioc = <0x0>;
+ brcm,ipp = <0x0>;
+ compatible = "brcm,bcm7211-usb-phy";
+ interrupts = <0x30>;
+ interrupt-parent = <&vpu_intr1_nosec_intc>;
+ interrupt-names = "wake";
+ #phy-cells = <0x1>;
+ brcm,has-xhci;
+ syscon-piarbctl = <&syscon_piarbctl>;
+ clocks = <&scmi_clk 256>;
+ clock-names = "sw_usb";
+};
diff --git a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
index b640845fec67..c03ad2198410 100644
--- a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
+++ b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
@@ -2,6 +2,7 @@
Required properties:
- compatible: should be one or more of
+ "brcm,bcm7216-sata-phy"
"brcm,bcm7425-sata-phy"
"brcm,bcm7445-sata-phy"
"brcm,iproc-ns2-sata-phy"
diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
new file mode 100644
index 000000000000..ff7959c21af0
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings
+
+maintainers:
+ - Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
+
+description: |+
+ Bindings for eMMC PHY on Intel's Lightning Mountain SoC, syscon
+ node is used to reference the base address of eMMC phy registers.
+
+ The eMMC PHY node should be the child of a syscon node with the
+ required property:
+
+ - compatible: Should be one of the following:
+ "intel,lgm-syscon", "syscon"
+ - reg:
+ maxItems: 1
+
+properties:
+ compatible:
+ const: intel,lgm-emmc-phy
+
+ "#phy-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - "#phy-cells"
+ - compatible
+ - reg
+ - clocks
+
+examples:
+ - |
+ sysconf: chiptop@e0200000 {
+ compatible = "intel,lgm-syscon", "syscon";
+ reg = <0xe0200000 0x100>;
+
+ emmc-phy: emmc-phy@a8 {
+ compatible = "intel,lgm-emmc-phy";
+ reg = <0x00a8 0x10>;
+ clocks = <&emmc>;
+ #phy-cells = <0>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-sierra.txt b/Documentation/devicetree/bindings/phy/phy-cadence-sierra.txt
index 6e1b47bfce43..03f5939d3d19 100644
--- a/Documentation/devicetree/bindings/phy/phy-cadence-sierra.txt
+++ b/Documentation/devicetree/bindings/phy/phy-cadence-sierra.txt
@@ -2,21 +2,24 @@ Cadence Sierra PHY
-----------------------
Required properties:
-- compatible: cdns,sierra-phy-t0
-- clocks: Must contain an entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names: Must be "phy_clk"
+- compatible: Must be "cdns,sierra-phy-t0" for Sierra in Cadence platform
+ Must be "ti,sierra-phy-t0" for Sierra in TI's J721E SoC.
- resets: Must contain an entry for each in reset-names.
See ../reset/reset.txt for details.
- reset-names: Must include "sierra_reset" and "sierra_apb".
"sierra_reset" must control the reset line to the PHY.
"sierra_apb" must control the reset line to the APB PHY
- interface.
+ interface ("sierra_apb" is optional).
- reg: register range for the PHY.
- #address-cells: Must be 1
- #size-cells: Must be 0
Optional properties:
+- clocks: Must contain an entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+- clock-names: Must contain "cmn_refclk_dig_div" and
+ "cmn_refclk1_dig_div" for configuring the frequency of
+ the clock to the lanes. "phy_clk" is deprecated.
- cdns,autoconf: A boolean property whose presence indicates that the
PHY registers will be configured by hardware. If not
present, all sub-node optional properties must be
diff --git a/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml b/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml
index bb0da87bcd84..72aca81e8959 100644
--- a/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml
@@ -13,9 +13,6 @@ properties:
"#phy-cells":
const: 0
- "#clock-cells":
- const: 0
-
compatible:
enum:
- rockchip,px30-dsi-dphy
@@ -49,7 +46,6 @@ properties:
required:
- "#phy-cells"
- - "#clock-cells"
- compatible
- reg
- clocks
@@ -62,11 +58,10 @@ additionalProperties: false
examples:
- |
dsi_dphy: phy@ff2e0000 {
- compatible = "rockchip,px30-video-phy";
+ compatible = "rockchip,px30-dsi-dphy";
reg = <0x0 0xff2e0000 0x0 0x10000>;
clocks = <&pmucru 13>, <&cru 12>;
clock-names = "ref", "pclk";
- #clock-cells = <0>;
resets = <&cru 12>;
reset-names = "apb";
#phy-cells = <0>;
diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 1c40ccd40ce4..7510830a79bd 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -1,4 +1,4 @@
-Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY
+Samsung S5P/Exynos SoC series MIPI CSIS/DSIM DPHY
-------------------------------------------------
Required properties:
@@ -27,7 +27,7 @@ the PHY specifier identifies the PHY and its meaning is as follows:
supports additional fifth PHY:
4 - MIPI CSIS 2.
-Samsung EXYNOS SoC series Display Port PHY
+Samsung Exynos SoC series Display Port PHY
-------------------------------------------------
Required properties:
@@ -38,7 +38,7 @@ Required properties:
control pmu registers for power isolation.
- #phy-cells : from the generic PHY bindings, must be 0;
-Samsung S5P/EXYNOS SoC series USB PHY
+Samsung S5P/Exynos SoC series USB PHY
-------------------------------------------------
Required properties:
diff --git a/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
deleted file mode 100644
index f2e120af17f0..000000000000
--- a/Documentation/devicetree/bindings/phy/sun4i-usb-phy.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-Allwinner sun4i USB PHY
------------------------
-
-Required properties:
-- compatible : should be one of
- * allwinner,sun4i-a10-usb-phy
- * allwinner,sun5i-a13-usb-phy
- * allwinner,sun6i-a31-usb-phy
- * allwinner,sun7i-a20-usb-phy
- * allwinner,sun8i-a23-usb-phy
- * allwinner,sun8i-a33-usb-phy
- * allwinner,sun8i-a83t-usb-phy
- * allwinner,sun8i-h3-usb-phy
- * allwinner,sun8i-r40-usb-phy
- * allwinner,sun8i-v3s-usb-phy
- * allwinner,sun50i-a64-usb-phy
- * allwinner,sun50i-h6-usb-phy
-- reg : a list of offset + length pairs
-- reg-names :
- * "phy_ctrl"
- * "pmu0" for H3, V3s, A64 or H6
- * "pmu1"
- * "pmu2" for sun4i, sun6i, sun7i, sun8i-a83t or sun8i-h3
- * "pmu3" for sun8i-h3 or sun50i-h6
-- #phy-cells : from the generic phy bindings, must be 1
-- clocks : phandle + clock specifier for the phy clocks
-- clock-names :
- * "usb_phy" for sun4i, sun5i or sun7i
- * "usb0_phy", "usb1_phy" and "usb2_phy" for sun6i
- * "usb0_phy", "usb1_phy" for sun8i
- * "usb0_phy", "usb1_phy", "usb2_phy" and "usb2_hsic_12M" for sun8i-a83t
- * "usb0_phy", "usb1_phy", "usb2_phy" and "usb3_phy" for sun8i-h3
- * "usb0_phy" and "usb3_phy" for sun50i-h6
-- resets : a list of phandle + reset specifier pairs
-- reset-names :
- * "usb0_reset"
- * "usb1_reset"
- * "usb2_reset" for sun4i, sun6i, sun7i, sun8i-a83t or sun8i-h3
- * "usb3_reset" for sun8i-h3 and sun50i-h6
-
-Optional properties:
-- usb0_id_det-gpios : gpio phandle for reading the otg id pin value
-- usb0_vbus_det-gpios : gpio phandle for detecting the presence of usb0 vbus
-- usb0_vbus_power-supply: power-supply phandle for usb0 vbus presence detect
-- usb0_vbus-supply : regulator phandle for controller usb0 vbus
-- usb1_vbus-supply : regulator phandle for controller usb1 vbus
-- usb2_vbus-supply : regulator phandle for controller usb2 vbus
-- usb3_vbus-supply : regulator phandle for controller usb3 vbus
-
-Example:
- usbphy: phy@01c13400 {
- #phy-cells = <1>;
- compatible = "allwinner,sun4i-a10-usb-phy";
- /* phy base regs, phy1 pmu reg, phy2 pmu reg */
- reg = <0x01c13400 0x10 0x01c14800 0x4 0x01c1c800 0x4>;
- reg-names = "phy_ctrl", "pmu1", "pmu2";
- clocks = <&usb_clk 8>;
- clock-names = "usb_phy";
- resets = <&usb_clk 0>, <&usb_clk 1>, <&usb_clk 2>;
- reset-names = "usb0_reset", "usb1_reset", "usb2_reset";
- pinctrl-names = "default";
- pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
- usb0_id_det-gpios = <&pio 7 19 GPIO_ACTIVE_HIGH>; /* PH19 */
- usb0_vbus_det-gpios = <&pio 7 22 GPIO_ACTIVE_HIGH>; /* PH22 */
- usb0_vbus-supply = <&reg_usb0_vbus>;
- usb1_vbus-supply = <&reg_usb1_vbus>;
- usb2_vbus-supply = <&reg_usb2_vbus>;
- };
diff --git a/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt
deleted file mode 100644
index 64f7109aea1f..000000000000
--- a/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-Allwinner sun9i USB PHY
------------------------
-
-Required properties:
-- compatible : should be one of
- * allwinner,sun9i-a80-usb-phy
-- reg : a list of offset + length pairs
-- #phy-cells : from the generic phy bindings, must be 0
-- phy_type : "hsic" for HSIC usage;
- other values or absence of this property indicates normal USB
-- clocks : phandle + clock specifier for the phy clocks
-- clock-names : depending on the "phy_type" property,
- * "phy" for normal USB
- * "hsic_480M", "hsic_12M" for HSIC
-- resets : a list of phandle + reset specifier pairs
-- reset-names : depending on the "phy_type" property,
- * "phy" for normal USB
- * "hsic" for HSIC
-
-Optional Properties:
-- phy-supply : from the generic phy bindings, a phandle to a regulator that
- provides power to VBUS.
-
-It is recommended to list all clocks and resets available.
-The driver will only use those matching the phy_type.
-
-Example:
- usbphy1: phy@a01800 {
- compatible = "allwinner,sun9i-a80-usb-phy";
- reg = <0x00a01800 0x4>;
- clocks = <&usb_phy_clk 2>, <&usb_phy_clk 10>,
- <&usb_phy_clk 3>;
- clock-names = "hsic_480M", "hsic_12M", "phy";
- resets = <&usb_phy_clk 18>, <&usb_phy_clk 19>;
- reset-names = "hsic", "phy";
- #phy-cells = <0>;
- };
diff --git a/Documentation/devicetree/bindings/phy/ti,phy-j721e-wiz.yaml b/Documentation/devicetree/bindings/phy/ti,phy-j721e-wiz.yaml
new file mode 100644
index 000000000000..452cee1aed32
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/ti,phy-j721e-wiz.yaml
@@ -0,0 +1,221 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/ti,phy-j721e-wiz.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: TI J721E WIZ (SERDES Wrapper)
+
+maintainers:
+ - Kishon Vijay Abraham I <kishon@ti.com>
+
+properties:
+ compatible:
+ enum:
+ - ti,j721e-wiz-16g
+ - ti,j721e-wiz-10g
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ maxItems: 3
+ description: clock-specifier to represent input to the WIZ
+
+ clock-names:
+ items:
+ - const: fck
+ - const: core_ref_clk
+ - const: ext_ref_clk
+
+ num-lanes:
+ minimum: 1
+ maximum: 4
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ ranges: true
+
+ assigned-clocks:
+ maxItems: 2
+
+ assigned-clock-parents:
+ maxItems: 2
+
+ typec-dir-gpios:
+ maxItems: 1
+ description:
+ GPIO to signal Type-C cable orientation for lane swap.
+ If GPIO is active, lane 0 and lane 1 of SERDES will be swapped to
+ achieve the funtionality of an external type-C plug flip mux.
+
+ typec-dir-debounce-ms:
+ minimum: 100
+ maximum: 1000
+ default: 100
+ description:
+ Number of milliseconds to wait before sampling typec-dir-gpio.
+ If not specified, the default debounce of 100ms will be used.
+ Type-C spec states minimum CC pin debounce of 100 ms and maximum
+ of 200 ms. However, some solutions might need more than 200 ms.
+
+patternProperties:
+ "^pll[0|1]-refclk$":
+ type: object
+ description: |
+ WIZ node should have subnodes for each of the PLLs present in
+ the SERDES.
+ properties:
+ clocks:
+ maxItems: 2
+ description: Phandle to clock nodes representing the two inputs to PLL.
+
+ "#clock-cells":
+ const: 0
+
+ assigned-clocks:
+ maxItems: 1
+
+ assigned-clock-parents:
+ maxItems: 1
+
+ required:
+ - clocks
+ - "#clock-cells"
+ - assigned-clocks
+ - assigned-clock-parents
+
+ "^cmn-refclk1?-dig-div$":
+ type: object
+ description:
+ WIZ node should have subnodes for each of the PMA common refclock
+ provided by the SERDES.
+ properties:
+ clocks:
+ maxItems: 1
+ description: Phandle to the clock node representing the input to the
+ divider clock.
+
+ "#clock-cells":
+ const: 0
+
+ required:
+ - clocks
+ - "#clock-cells"
+
+ "^refclk-dig$":
+ type: object
+ description: |
+ WIZ node should have subnode for refclk_dig to select the reference
+ clock source for the reference clock used in the PHY and PMA digital
+ logic.
+ properties:
+ clocks:
+ maxItems: 4
+ description: Phandle to four clock nodes representing the inputs to
+ refclk_dig
+
+ "#clock-cells":
+ const: 0
+
+ assigned-clocks:
+ maxItems: 1
+
+ assigned-clock-parents:
+ maxItems: 1
+
+ required:
+ - clocks
+ - "#clock-cells"
+ - assigned-clocks
+ - assigned-clock-parents
+
+ "^serdes@[0-9a-f]+$":
+ type: object
+ description: |
+ WIZ node should have '1' subnode for the SERDES. It could be either
+ Sierra SERDES or Torrent SERDES. Sierra SERDES should follow the
+ bindings specified in
+ Documentation/devicetree/bindings/phy/phy-cadence-sierra.txt
+ Torrent SERDES should follow the bindings specified in
+ Documentation/devicetree/bindings/phy/phy-cadence-dp.txt
+
+required:
+ - compatible
+ - power-domains
+ - clocks
+ - clock-names
+ - num-lanes
+ - "#address-cells"
+ - "#size-cells"
+ - "#reset-cells"
+ - ranges
+
+examples:
+ - |
+ #include <dt-bindings/soc/ti,sci_pm_domain.h>
+
+ wiz@5000000 {
+ compatible = "ti,j721e-wiz-16g";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ power-domains = <&k3_pds 292 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 292 5>, <&k3_clks 292 11>, <&dummy_cmn_refclk>;
+ clock-names = "fck", "core_ref_clk", "ext_ref_clk";
+ assigned-clocks = <&k3_clks 292 11>, <&k3_clks 292 0>;
+ assigned-clock-parents = <&k3_clks 292 15>, <&k3_clks 292 4>;
+ num-lanes = <2>;
+ #reset-cells = <1>;
+ ranges = <0x5000000 0x5000000 0x10000>;
+
+ pll0-refclk {
+ clocks = <&k3_clks 293 13>, <&dummy_cmn_refclk>;
+ #clock-cells = <0>;
+ assigned-clocks = <&wiz1_pll0_refclk>;
+ assigned-clock-parents = <&k3_clks 293 13>;
+ };
+
+ pll1-refclk {
+ clocks = <&k3_clks 293 0>, <&dummy_cmn_refclk1>;
+ #clock-cells = <0>;
+ assigned-clocks = <&wiz1_pll1_refclk>;
+ assigned-clock-parents = <&k3_clks 293 0>;
+ };
+
+ cmn-refclk-dig-div {
+ clocks = <&wiz1_refclk_dig>;
+ #clock-cells = <0>;
+ };
+
+ cmn-refclk1-dig-div {
+ clocks = <&wiz1_pll1_refclk>;
+ #clock-cells = <0>;
+ };
+
+ refclk-dig {
+ clocks = <&k3_clks 292 11>, <&k3_clks 292 0>, <&dummy_cmn_refclk>, <&dummy_cmn_refclk1>;
+ #clock-cells = <0>;
+ assigned-clocks = <&wiz0_refclk_dig>;
+ assigned-clock-parents = <&k3_clks 292 11>;
+ };
+
+ serdes@5000000 {
+ compatible = "cdns,ti,sierra-phy-t0";
+ reg-names = "serdes";
+ reg = <0x5000000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ resets = <&serdes_wiz0 0>;
+ reset-names = "sierra_reset";
+ clocks = <&wiz0_cmn_refclk_dig_div>, <&wiz0_cmn_refclk1_dig_div>;
+ clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
index 064b7dfc4252..3749fa233e87 100644
--- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
@@ -54,8 +54,9 @@ patternProperties:
TACH10, TACH11, TACH12, TACH13, TACH14, TACH15, TACH2, TACH3,
TACH4, TACH5, TACH6, TACH7, TACH8, TACH9, THRU0, THRU1, THRU2,
THRU3, TXD1, TXD2, TXD3, TXD4, UART10, UART11, UART12, UART13,
- UART6, UART7, UART8, UART9, VB, VGAHS, VGAVS, WDTRST1, WDTRST2,
- WDTRST3, WDTRST4, ]
+ UART6, UART7, UART8, UART9, USBAD, USBADP, USB2AH, USB2AHP,
+ USB2BD, USB2BH, VB, VGAHS, VGAVS, WDTRST1, WDTRST2, WDTRST3,
+ WDTRST4, ]
groups:
allOf:
- $ref: "/schemas/types.yaml#/definitions/string"
@@ -85,8 +86,8 @@ patternProperties:
TACH10, TACH11, TACH12, TACH13, TACH14, TACH15, TACH2, TACH3,
TACH4, TACH5, TACH6, TACH7, TACH8, TACH9, THRU0, THRU1, THRU2,
THRU3, TXD1, TXD2, TXD3, TXD4, UART10, UART11, UART12G0,
- UART12G1, UART13G0, UART13G1, UART6, UART7, UART8, UART9, VB,
- VGAHS, VGAVS, WDTRST1, WDTRST2, WDTRST3, WDTRST4, ]
+ UART12G1, UART13G0, UART13G1, UART6, UART7, UART8, UART9, USBA,
+ USBB, VB, VGAHS, VGAVS, WDTRST1, WDTRST2, WDTRST3, WDTRST4, ]
required:
- compatible
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml
new file mode 100644
index 000000000000..2e31e120395e
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/fsl,imx8mp-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale IMX8MP IOMUX Controller
+
+maintainers:
+ - Anson Huang <Anson.Huang@nxp.com>
+
+description:
+ Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
+ for common binding part and usage.
+
+properties:
+ compatible:
+ const: fsl,imx8mp-iomuxc
+
+ reg:
+ maxItems: 1
+
+# Client device subnode's properties
+patternProperties:
+ 'grp$':
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for desired pin configuration.
+ Client device subnodes use below standard properties.
+
+ properties:
+ fsl,pins:
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ description:
+ each entry consists of 6 integers and represents the mux and config
+ setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
+ mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
+ be found in <arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h>. The last
+ integer CONFIG is the pad setting value like pull-up on this pin. Please
+ refer to i.MX8M Plus Reference Manual for detailed CONFIG settings.
+
+ required:
+ - fsl,pins
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ # Pinmux controller node
+ - |
+ iomuxc: pinctrl@30330000 {
+ compatible = "fsl,imx8mp-iomuxc";
+ reg = <0x30330000 0x10000>;
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ 0x228 0x488 0x5F0 0x0 0x6 0x49
+ 0x228 0x488 0x000 0x0 0x0 0x49
+ >;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
index 0014d9899797..d9b2100c98e8 100644
--- a/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
@@ -10,9 +10,9 @@ GPIO port configuration registers and it is typical to refer to pins using the
naming scheme "PxN" where x is a character identifying the GPIO port with
which the pin is associated and N is an integer from 0 to 31 identifying the
pin within that GPIO port. For example PA0 is the first pin in GPIO port A, and
-PB31 is the last pin in GPIO port B. The jz4740 and the x1000 contains 4 GPIO
-ports, PA to PD, for a total of 128 pins. The jz4760, the jz4770 and the jz4780
-contains 6 GPIO ports, PA to PF, for a total of 192 pins.
+PB31 is the last pin in GPIO port B. The jz4740, the x1000 and the x1830
+contains 4 GPIO ports, PA to PD, for a total of 128 pins. The jz4760, the
+jz4770 and the jz4780 contains 6 GPIO ports, PA to PF, for a total of 192 pins.
Required properties:
@@ -28,6 +28,7 @@ Required properties:
- "ingenic,x1000-pinctrl"
- "ingenic,x1000e-pinctrl"
- "ingenic,x1500-pinctrl"
+ - "ingenic,x1830-pinctrl"
- reg: Address range of the pinctrl registers.
@@ -40,6 +41,7 @@ Required properties for sub-nodes (GPIO chips):
- "ingenic,jz4770-gpio"
- "ingenic,jz4780-gpio"
- "ingenic,x1000-gpio"
+ - "ingenic,x1830-gpio"
- reg: The GPIO bank number.
- interrupt-controller: Marks the device node as an interrupt controller.
- interrupts: Interrupt specifier for the controllers interrupt.
diff --git a/Documentation/devicetree/bindings/pinctrl/intel,lgm-io.yaml b/Documentation/devicetree/bindings/pinctrl/intel,lgm-io.yaml
new file mode 100644
index 000000000000..cd2b436350ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/intel,lgm-io.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/intel,lgm-io.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Intel Lightning Mountain SoC pinmux & GPIO controller binding
+
+maintainers:
+ - Rahul Tanwar <rahul.tanwar@linux.intel.com>
+
+description: |
+ Pinmux & GPIO controller controls pin multiplexing & configuration including
+ GPIO function selection & GPIO attributes configuration.
+
+properties:
+ compatible:
+ const: intel,lgm-io
+
+ reg:
+ maxItems: 1
+
+# Client device subnode's properties
+patternProperties:
+ '-pins$':
+ type: object
+ allOf:
+ - $ref: pincfg-node.yaml#
+ - $ref: pinmux-node.yaml#
+ description:
+ Pinctrl node's client devices use subnodes for desired pin configuration.
+ Client device subnodes use below standard properties.
+
+ properties:
+ function: true
+ groups: true
+ pins: true
+ pinmux: true
+ bias-pull-up: true
+ bias-pull-down: true
+ drive-strength: true
+ slew-rate: true
+ drive-open-drain: true
+ output-enable: true
+
+ required:
+ - function
+ - groups
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ # Pinmux controller node
+ - |
+ pinctrl: pinctrl@e2880000 {
+ compatible = "intel,lgm-io";
+ reg = <0xe2880000 0x100000>;
+
+ uart0-pins {
+ pins = <64>, /* UART_RX0 */
+ <65>; /* UART_TX0 */
+ function = "CONSOLE_UART0";
+ pinmux = <1>,
+ <1>;
+ groups = "CONSOLE_UART0";
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/pinctrl/intel,lgm-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/intel,lgm-pinctrl.yaml
deleted file mode 100644
index 240d429f773b..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/intel,lgm-pinctrl.yaml
+++ /dev/null
@@ -1,116 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/bindings/pinctrl/intel,lgm-pinctrl.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Intel Lightning Mountain SoC pinmux & GPIO controller binding
-
-maintainers:
- - Rahul Tanwar <rahul.tanwar@linux.intel.com>
-
-description: |
- Pinmux & GPIO controller controls pin multiplexing & configuration including
- GPIO function selection & GPIO attributes configuration.
-
- Please refer to [1] for details of the common pinctrl bindings used by the
- client devices.
-
- [1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
-
-properties:
- compatible:
- const: intel,lgm-io
-
- reg:
- maxItems: 1
-
-# Client device subnode's properties
-patternProperties:
- '-pins$':
- type: object
- description:
- Pinctrl node's client devices use subnodes for desired pin configuration.
- Client device subnodes use below standard properties.
-
- properties:
- function:
- $ref: /schemas/types.yaml#/definitions/string
- description:
- A string containing the name of the function to mux to the group.
-
- groups:
- $ref: /schemas/types.yaml#/definitions/string-array
- description:
- An array of strings identifying the list of groups.
-
- pins:
- $ref: /schemas/types.yaml#/definitions/uint32-array
- description:
- List of pins to select with this function.
-
- pinmux:
- description: The applicable mux group.
- allOf:
- - $ref: "/schemas/types.yaml#/definitions/uint32-array"
-
- bias-pull-up:
- type: boolean
-
- bias-pull-down:
- type: boolean
-
- drive-strength:
- description: |
- Selects the drive strength for the specified pins in mA.
- 0: 2 mA
- 1: 4 mA
- 2: 8 mA
- 3: 12 mA
- allOf:
- - $ref: /schemas/types.yaml#/definitions/uint32
- - enum: [0, 1, 2, 3]
-
- slew-rate:
- type: boolean
- description: |
- Sets slew rate for specified pins.
- 0: slow slew
- 1: fast slew
-
- drive-open-drain:
- type: boolean
-
- output-enable:
- type: boolean
-
- required:
- - function
- - groups
-
- additionalProperties: false
-
-required:
- - compatible
- - reg
-
-additionalProperties: false
-
-examples:
- # Pinmux controller node
- - |
- pinctrl: pinctrl@e2880000 {
- compatible = "intel,lgm-pinctrl";
- reg = <0xe2880000 0x100000>;
-
- uart0-pins {
- pins = <64>, /* UART_RX0 */
- <65>; /* UART_TX0 */
- function = "CONSOLE_UART0";
- pinmux = <1>,
- <1>;
- groups = "CONSOLE_UART0";
- };
- };
-
-...
diff --git a/Documentation/devicetree/bindings/pinctrl/pinmux-node.yaml b/Documentation/devicetree/bindings/pinctrl/pinmux-node.yaml
index 777623a57fd5..732d9075560b 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinmux-node.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinmux-node.yaml
@@ -114,7 +114,7 @@ properties:
specific binding for the hardware defines whether the entries are integers
or strings, and their meaning.
- group:
+ groups:
$ref: /schemas/types.yaml#/definitions/string-array
description:
the group to apply the properties to, if the driver supports
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sc7180-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,sc7180-pinctrl.txt
index b5767ee82ee6..6ffeac9801df 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,sc7180-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sc7180-pinctrl.txt
@@ -125,8 +125,9 @@ to specify in a pin configuration subnode:
mi2s_1, mi2s_2, mss_lte, m_voc, pa_indicator, phase_flag,
PLL_BIST, pll_bypassnl, pll_reset, prng_rosc, qdss,
qdss_cti, qlink_enable, qlink_request, qspi_clk, qspi_cs,
- qspi_data, qup00, qup01, qup02, qup03, qup04, qup05,
- qup10, qup11, qup12, qup13, qup14, qup15, sdc1_tb,
+ qspi_data, qup00, qup01, qup02_i2c, qup02_uart, qup03,
+ qup04_i2c, qup04_uart, qup05, qup10, qup11_i2c, qup11_uart,
+ qup12, qup13_i2c, qup13_uart, qup14, qup15, sdc1_tb,
sdc2_tb, sd_write, sp_cmu, tgu_ch0, tgu_ch1, tgu_ch2,
tgu_ch3, tsense_pwm1, tsense_pwm2, uim1, uim2, uim_batt,
usb_phy, vfr_1, _V_GPIO, _V_PPS_IN, _V_PPS_OUT,
diff --git a/Documentation/devicetree/bindings/power/avs/qcom,cpr.txt b/Documentation/devicetree/bindings/power/avs/qcom,cpr.txt
new file mode 100644
index 000000000000..ab0d5ebbad4e
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/avs/qcom,cpr.txt
@@ -0,0 +1,130 @@
+QCOM CPR (Core Power Reduction)
+
+CPR (Core Power Reduction) is a technology to reduce core power on a CPU
+or other device. Each OPP of a device corresponds to a "corner" that has
+a range of valid voltages for a particular frequency. While the device is
+running at a particular frequency, CPR monitors dynamic factors such as
+temperature, etc. and suggests adjustments to the voltage to save power
+and meet silicon characteristic requirements.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: should be "qcom,qcs404-cpr", "qcom,cpr" for qcs404
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: base address and size of the rbcpr register region
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify the CPR interrupt
+
+- clocks:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: phandle to the reference clock
+
+- clock-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "ref"
+
+- vdd-apc-supply:
+ Usage: required
+ Value type: <phandle>
+ Definition: phandle to the vdd-apc-supply regulator
+
+- #power-domain-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: should be 0
+
+- operating-points-v2:
+ Usage: required
+ Value type: <phandle>
+ Definition: A phandle to the OPP table containing the
+ performance states supported by the CPR
+ power domain
+
+- acc-syscon:
+ Usage: optional
+ Value type: <phandle>
+ Definition: phandle to syscon for writing ACC settings
+
+- nvmem-cells:
+ Usage: required
+ Value type: <phandle>
+ Definition: phandle to nvmem cells containing the data
+ that makes up a fuse corner, for each fuse corner.
+ As well as the CPR fuse revision.
+
+- nvmem-cell-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: should be "cpr_quotient_offset1", "cpr_quotient_offset2",
+ "cpr_quotient_offset3", "cpr_init_voltage1",
+ "cpr_init_voltage2", "cpr_init_voltage3", "cpr_quotient1",
+ "cpr_quotient2", "cpr_quotient3", "cpr_ring_osc1",
+ "cpr_ring_osc2", "cpr_ring_osc3", "cpr_fuse_revision"
+ for qcs404.
+
+Example:
+
+ cpr_opp_table: cpr-opp-table {
+ compatible = "operating-points-v2-qcom-level";
+
+ cpr_opp1: opp1 {
+ opp-level = <1>;
+ qcom,opp-fuse-level = <1>;
+ };
+ cpr_opp2: opp2 {
+ opp-level = <2>;
+ qcom,opp-fuse-level = <2>;
+ };
+ cpr_opp3: opp3 {
+ opp-level = <3>;
+ qcom,opp-fuse-level = <3>;
+ };
+ };
+
+ power-controller@b018000 {
+ compatible = "qcom,qcs404-cpr", "qcom,cpr";
+ reg = <0x0b018000 0x1000>;
+ interrupts = <0 15 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xo_board>;
+ clock-names = "ref";
+ vdd-apc-supply = <&pms405_s3>;
+ #power-domain-cells = <0>;
+ operating-points-v2 = <&cpr_opp_table>;
+ acc-syscon = <&tcsr>;
+
+ nvmem-cells = <&cpr_efuse_quot_offset1>,
+ <&cpr_efuse_quot_offset2>,
+ <&cpr_efuse_quot_offset3>,
+ <&cpr_efuse_init_voltage1>,
+ <&cpr_efuse_init_voltage2>,
+ <&cpr_efuse_init_voltage3>,
+ <&cpr_efuse_quot1>,
+ <&cpr_efuse_quot2>,
+ <&cpr_efuse_quot3>,
+ <&cpr_efuse_ring1>,
+ <&cpr_efuse_ring2>,
+ <&cpr_efuse_ring3>,
+ <&cpr_efuse_revision>;
+ nvmem-cell-names = "cpr_quotient_offset1",
+ "cpr_quotient_offset2",
+ "cpr_quotient_offset3",
+ "cpr_init_voltage1",
+ "cpr_init_voltage2",
+ "cpr_init_voltage3",
+ "cpr_quotient1",
+ "cpr_quotient2",
+ "cpr_quotient3",
+ "cpr_ring_osc1",
+ "cpr_ring_osc2",
+ "cpr_ring_osc3",
+ "cpr_fuse_revision";
+ };
diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt
index 5c913d4cf36c..3049cf88bdcf 100644
--- a/Documentation/devicetree/bindings/power/supply/battery.txt
+++ b/Documentation/devicetree/bindings/power/supply/battery.txt
@@ -35,6 +35,10 @@ Optional Properties:
for each of the battery capacity lookup table. The first temperature value
specifies the OCV table 0, and the second temperature value specifies the
OCV table 1, and so on.
+ - resistance-temp-table: An array providing the temperature in degree Celsius
+ and corresponding battery internal resistance percent, which is used to look
+ up the resistance percent according to current temperature to get a accurate
+ batterty internal resistance in different temperatures.
Battery properties are named, where possible, for the corresponding
elements in enum power_supply_property, defined in
@@ -61,6 +65,7 @@ Example:
ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>, ...;
ocv-capacity-table-1 = <4200000 100>, <4185000 95>, <4113000 90>, ...;
ocv-capacity-table-2 = <4250000 100>, <4200000 95>, <4185000 90>, ...;
+ resistance-temp-table = <20 100>, <10 90>, <0 80>, <(-10) 60>;
};
charger: charger@11 {
diff --git a/Documentation/devicetree/bindings/power/supply/bq25890.txt b/Documentation/devicetree/bindings/power/supply/bq25890.txt
index dc0568933359..dc9c8f76e06c 100644
--- a/Documentation/devicetree/bindings/power/supply/bq25890.txt
+++ b/Documentation/devicetree/bindings/power/supply/bq25890.txt
@@ -1,11 +1,14 @@
Binding for TI bq25890 Li-Ion Charger
-This driver will support the bq25896 and the bq25890. There are other ICs
-in the same family but those have not been tested.
+This driver will support the bq25892, the bq25896 and the bq25890. There are
+other ICs in the same family but those have not been tested.
Required properties:
- compatible: Should contain one of the following:
* "ti,bq25890"
+ * "ti,bq25892"
+ * "ti,bq25895"
+ * "ti,bq25896"
- reg: integer, i2c address of the device.
- ti,battery-regulation-voltage: integer, maximum charging voltage (in uV);
- ti,charge-current: integer, maximum charging current (in uA);
diff --git a/Documentation/devicetree/bindings/power/supply/max17040_battery.txt b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt
new file mode 100644
index 000000000000..4e0186b8380f
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/max17040_battery.txt
@@ -0,0 +1,33 @@
+max17040_battery
+~~~~~~~~~~~~~~~~
+
+Required properties :
+ - compatible : "maxim,max17040" or "maxim,max77836-battery"
+ - reg: i2c slave address
+
+Optional properties :
+- maxim,alert-low-soc-level : The alert threshold that sets the state of
+ charge level (%) where an interrupt is
+ generated. Can be configured from 1 up to 32
+ (%). If skipped the power up default value of
+ 4 (%) will be used.
+- interrupts : Interrupt line see Documentation/devicetree/
+ bindings/interrupt-controller/interrupts.txt
+- wakeup-source : This device has wakeup capabilities. Use this
+ property to use alert low SOC level interrupt
+ as wake up source.
+
+Optional properties support interrupt functionality for alert low state of
+charge level, present in some ICs in the same family, and should be used with
+compatible "maxim,max77836-battery".
+
+Example:
+
+ battery-fuel-gauge@36 {
+ compatible = "maxim,max77836-battery";
+ reg = <0x36>;
+ maxim,alert-low-soc-level = <10>;
+ interrupt-parent = <&gpio7>;
+ interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+ wakeup-source;
+ };
diff --git a/Documentation/devicetree/bindings/power/supply/max17042_battery.txt b/Documentation/devicetree/bindings/power/supply/max17042_battery.txt
index 3f3894aaeebc..f34c5daae9af 100644
--- a/Documentation/devicetree/bindings/power/supply/max17042_battery.txt
+++ b/Documentation/devicetree/bindings/power/supply/max17042_battery.txt
@@ -2,7 +2,11 @@ max17042_battery
~~~~~~~~~~~~~~~~
Required properties :
- - compatible : "maxim,max17042"
+ - compatible : one of the following
+ * "maxim,max17042"
+ * "maxim,max17047"
+ * "maxim,max17050"
+ * "maxim,max17055"
Optional properties :
- maxim,rsns-microohm : Resistance of rsns resistor in micro Ohms
diff --git a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
index 0a5705b8b592..b6359b590383 100644
--- a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
+++ b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
@@ -13,6 +13,8 @@ Required properties:
- io-channel-names: Should be "bat-temp" or "charge-vol".
- nvmem-cells: A phandle to the calibration cells provided by eFuse device.
- nvmem-cell-names: Should be "fgu_calib".
+- sprd,calib-resistance-micro-ohms: Specify the real resistance of coulomb counter
+ chip in micro Ohms.
- monitored-battery: Phandle of battery characteristics devicetree node.
See Documentation/devicetree/bindings/power/supply/battery.txt
@@ -52,5 +54,6 @@ Example:
nvmem-cells = <&fgu_calib>;
nvmem-cell-names = "fgu_calib";
monitored-battery = <&bat>;
+ sprd,calib-resistance-micro-ohms = <21500>;
};
};
diff --git a/Documentation/devicetree/bindings/ptp/ptp-ines.txt b/Documentation/devicetree/bindings/ptp/ptp-ines.txt
new file mode 100644
index 000000000000..4c242bd1ce9c
--- /dev/null
+++ b/Documentation/devicetree/bindings/ptp/ptp-ines.txt
@@ -0,0 +1,35 @@
+ZHAW InES PTP time stamping IP core
+
+The IP core needs two different kinds of nodes. The control node
+lives somewhere in the memory map and specifies the address of the
+control registers. There can be up to three port handles placed as
+attributes of PHY nodes. These associate a particular MII bus with a
+port index within the IP core.
+
+Required properties of the control node:
+
+- compatible: "ines,ptp-ctrl"
+- reg: physical address and size of the register bank
+
+Required format of the port handle within the PHY node:
+
+- timestamper: provides control node reference and
+ the port channel within the IP core
+
+Example:
+
+ tstamper: timestamper@60000000 {
+ compatible = "ines,ptp-ctrl";
+ reg = <0x60000000 0x80>;
+ };
+
+ ethernet@80000000 {
+ ...
+ mdio {
+ ...
+ ethernet-phy@3 {
+ ...
+ timestamper = <&tstamper 0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/ptp/timestamper.txt b/Documentation/devicetree/bindings/ptp/timestamper.txt
new file mode 100644
index 000000000000..fc550ce4d4ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/ptp/timestamper.txt
@@ -0,0 +1,42 @@
+Time stamps from MII bus snooping devices
+
+This binding supports non-PHY devices that snoop the MII bus and
+provide time stamps. In contrast to PHY time stamping drivers (which
+can simply attach their interface directly to the PHY instance), stand
+alone MII time stamping drivers use this binding to specify the
+connection between the snooping device and a given network interface.
+
+Non-PHY MII time stamping drivers typically talk to the control
+interface over another bus like I2C, SPI, UART, or via a memory mapped
+peripheral. This controller device is associated with one or more
+time stamping channels, each of which snoops on a MII bus.
+
+The "timestamper" property lives in a phy node and links a time
+stamping channel from the controller device to that phy's MII bus.
+
+Example:
+
+ tstamper: timestamper@10000000 {
+ compatible = "ines,ptp-ctrl";
+ reg = <0x10000000 0x80>;
+ };
+
+ ethernet@20000000 {
+ mdio {
+ ethernet-phy@1 {
+ timestamper = <&tstamper 0>;
+ };
+ };
+ };
+
+ ethernet@30000000 {
+ mdio {
+ ethernet-phy@2 {
+ timestamper = <&tstamper 1>;
+ };
+ };
+ };
+
+In this example, time stamps from the MII bus attached to phy@1 will
+appear on time stamp channel 0 (zero), and those from phy@2 appear on
+channel 1.
diff --git a/Documentation/devicetree/bindings/regulator/mp8859.txt b/Documentation/devicetree/bindings/regulator/mp8859.txt
new file mode 100644
index 000000000000..74ad69730989
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mp8859.txt
@@ -0,0 +1,22 @@
+Monolithic Power Systems MP8859 voltage regulator
+
+Required properties:
+- compatible: "mps,mp8859";
+- reg: I2C slave address.
+
+Optional subnode for regulator: "mp8859_dcdc", using common regulator
+bindings given in <Documentation/devicetree/bindings/regulator/regulator.txt>.
+
+Example:
+
+ mp8859: regulator@66 {
+ compatible = "mps,mp8859";
+ reg = <0x66>;
+ dc_12v: mp8859_dcdc {
+ regulator-name = "dc_12v";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml b/Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml
new file mode 100644
index 000000000000..a682af0dc67e
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/mps,mpq7920.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Monolithic Power System MPQ7920 PMIC
+
+maintainers:
+ - Saravanan Sekar <sravanhome@gmail.com>
+
+properties:
+ $nodename:
+ pattern: "pmic@[0-9a-f]{1,2}"
+ compatible:
+ enum:
+ - mps,mpq7920
+
+ reg:
+ maxItems: 1
+
+ regulators:
+ type: object
+ allOf:
+ - $ref: regulator.yaml#
+ description: |
+ list of regulators provided by this controller, must be named
+ after their hardware counterparts BUCK[1-4], one LDORTC, and LDO[2-5]
+
+ properties:
+ mps,switch-freq:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8"
+ enum: [ 0, 1, 2, 3 ]
+ default: 2
+ description: |
+ switching frequency must be one of following corresponding value
+ 1.1MHz, 1.65MHz, 2.2MHz, 2.75MHz
+
+ patternProperties:
+ "^ldo[1-4]$":
+ type: object
+ allOf:
+ - $ref: regulator.yaml#
+
+ "^ldortc$":
+ type: object
+ allOf:
+ - $ref: regulator.yaml#
+
+ "^buck[1-4]$":
+ type: object
+ allOf:
+ - $ref: regulator.yaml#
+
+ properties:
+ mps,buck-softstart:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8"
+ enum: [ 0, 1, 2, 3 ]
+ description: |
+ defines the soft start time of this buck, must be one of the following
+ corresponding values 150us, 300us, 610us, 920us
+
+ mps,buck-phase-delay:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint8"
+ enum: [ 0, 1, 2, 3 ]
+ description: |
+ defines the phase delay of this buck, must be one of the following
+ corresponding values 0deg, 90deg, 180deg, 270deg
+
+ mps,buck-ovp-disable:
+ type: boolean
+ description: |
+ disables over voltage protection of this buck
+
+ additionalProperties: false
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - regulators
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@69 {
+ compatible = "mps,mpq7920";
+ reg = <0x69>;
+
+ regulators {
+ mps,switch-freq = /bits/ 8 <1>;
+
+ buck1 {
+ regulator-name = "buck1";
+ regulator-min-microvolt = <400000>;
+ regulator-max-microvolt = <3587500>;
+ regulator-min-microamp = <460000>;
+ regulator-max-microamp = <7600000>;
+ regulator-boot-on;
+ mps,buck-ovp-disable;
+ mps,buck-phase-delay = /bits/ 8 <2>;
+ mps,buck-softstart = /bits/ 8 <1>;
+ };
+
+ ldo2 {
+ regulator-name = "ldo2";
+ regulator-min-microvolt = <650000>;
+ regulator-max-microvolt = <3587500>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.yaml
new file mode 100644
index 000000000000..71ce032b8cf8
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/rohm,bd71828-regulator.yaml
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/rohm,bd71828-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ROHM BD71828 Power Management Integrated Circuit regulators
+
+maintainers:
+ - Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
+
+description: |
+ This module is part of the ROHM BD71828 MFD device. For more details
+ see Documentation/devicetree/bindings/mfd/rohm,bd71828-pmic.yaml.
+
+ The regulator controller is represented as a sub-node of the PMIC node
+ on the device tree.
+
+ Regulator nodes should be named to BUCK_<number> and LDO_<number>.
+ The valid names for BD71828 regulator nodes are
+ BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6, BUCK7
+ LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7
+
+patternProperties:
+ "^LDO[1-7]$":
+ type: object
+ allOf:
+ - $ref: regulator.yaml#
+ description:
+ Properties for single LDO regulator.
+
+ properties:
+ regulator-name:
+ pattern: "^ldo[1-7]$"
+ description:
+ should be "ldo1", ..., "ldo7"
+
+ "^BUCK[1-7]$":
+ type: object
+ allOf:
+ - $ref: regulator.yaml#
+ description:
+ Properties for single BUCK regulator.
+
+ properties:
+ regulator-name:
+ pattern: "^buck[1-7]$"
+ description:
+ should be "buck1", ..., "buck7"
+
+ rohm,dvs-run-voltage:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint32"
+ - minimum: 0
+ maximum: 3300000
+ description:
+ PMIC default "RUN" state voltage in uV. See below table for
+ bucks which support this. 0 means disabled.
+
+ rohm,dvs-idle-voltage:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint32"
+ - minimum: 0
+ maximum: 3300000
+ description:
+ PMIC default "IDLE" state voltage in uV. See below table for
+ bucks which support this. 0 means disabled.
+
+ rohm,dvs-suspend-voltage:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint32"
+ - minimum: 0
+ maximum: 3300000
+ description:
+ PMIC default "SUSPEND" state voltage in uV. See below table for
+ bucks which support this. 0 means disabled.
+
+ rohm,dvs-lpsr-voltage:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/uint32"
+ - minimum: 0
+ maximum: 3300000
+ description:
+ PMIC default "LPSR" state voltage in uV. See below table for
+ bucks which support this. 0 means disabled.
+
+ # Supported default DVS states:
+ # buck | run | idle | suspend | lpsr
+ #--------------------------------------------------------------
+ # 1, 2, 6, and 7 | supported | supported | supported (*)
+ #--------------------------------------------------------------
+ # 3, 4, and 5 | supported (**)
+ #--------------------------------------------------------------
+ #
+ #(*) LPSR and SUSPEND states use same voltage but both states have own
+ # enable /
+ # disable settings. Voltage 0 can be specified for a state to make
+ # regulator disabled on that state.
+ #
+ #(**) All states use same voltage but have own enable / disable
+ # settings. Voltage 0 can be specified for a state to make
+ # regulator disabled on that state.
+
+ required:
+ - regulator-name
+ additionalProperties: false
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-booster.txt b/Documentation/devicetree/bindings/regulator/st,stm32-booster.txt
deleted file mode 100644
index 479ad4c8758e..000000000000
--- a/Documentation/devicetree/bindings/regulator/st,stm32-booster.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-STM32 BOOSTER - Booster for ADC analog input switches
-
-Some STM32 devices embed a 3.3V booster supplied by Vdda, that can be used
-to supply ADC analog input switches.
-
-Required properties:
-- compatible: Should be one of:
- "st,stm32h7-booster"
- "st,stm32mp1-booster"
-- st,syscfg: Phandle to system configuration controller.
-- vdda-supply: Phandle to the vdda input analog voltage.
-
-Example:
- booster: regulator-booster {
- compatible = "st,stm32mp1-booster";
- st,syscfg = <&syscfg>;
- vdda-supply = <&vdda>;
- };
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-booster.yaml b/Documentation/devicetree/bindings/regulator/st,stm32-booster.yaml
new file mode 100644
index 000000000000..64f1183ce841
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/st,stm32-booster.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/st,stm32-booster.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 booster for ADC analog input switches bindings
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+
+description: |
+ Some STM32 devices embed a 3.3V booster supplied by Vdda, that can be used
+ to supply ADC analog input switches.
+
+allOf:
+ - $ref: "regulator.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - st,stm32h7-booster
+ - st,stm32mp1-booster
+
+ st,syscfg:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/phandle-array"
+ description: phandle to system configuration controller.
+
+ vdda-supply:
+ description: phandle to the vdda input analog voltage.
+
+required:
+ - compatible
+ - st,syscfg
+ - vdda-supply
+
+examples:
+ - |
+ regulator-booster {
+ compatible = "st,stm32mp1-booster";
+ st,syscfg = <&syscfg>;
+ vdda-supply = <&vdda>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
deleted file mode 100644
index 5ddb8500a929..000000000000
--- a/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-STM32 VREFBUF - Voltage reference buffer
-
-Some STM32 devices embed a voltage reference buffer which can be used as
-voltage reference for ADCs, DACs and also as voltage reference for external
-components through the dedicated VREF+ pin.
-
-Required properties:
-- compatible: Must be "st,stm32-vrefbuf".
-- reg: Offset and length of VREFBUF register set.
-- clocks: Must contain an entry for peripheral clock.
-
-Example:
- vrefbuf: regulator@58003c00 {
- compatible = "st,stm32-vrefbuf";
- reg = <0x58003C00 0x8>;
- clocks = <&rcc VREF_CK>;
- regulator-min-microvolt = <1500000>;
- regulator-max-microvolt = <2500000>;
- vdda-supply = <&vdda>;
- };
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.yaml b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.yaml
new file mode 100644
index 000000000000..33cdaeb25aee
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/st,stm32-vrefbuf.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/st,stm32-vrefbuf.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Voltage reference buffer bindings
+
+description: |
+ Some STM32 devices embed a voltage reference buffer which can be used as
+ voltage reference for ADCs, DACs and also as voltage reference for external
+ components through the dedicated VREF+ pin.
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+
+allOf:
+ - $ref: "regulator.yaml#"
+
+properties:
+ compatible:
+ const: st,stm32-vrefbuf
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ vdda-supply:
+ description: phandle to the vdda input analog voltage.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - vdda-supply
+
+examples:
+ - |
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ vrefbuf@50025000 {
+ compatible = "st,stm32-vrefbuf";
+ reg = <0x50025000 0x8>;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <2500000>;
+ clocks = <&rcc VREF>;
+ vdda-supply = <&vdda>;
+ };
+
+...
+
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.txt b/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.txt
deleted file mode 100644
index e372dd3f0c8a..000000000000
--- a/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-STM32MP1 PWR Regulators
------------------------
-
-Available Regulators in STM32MP1 PWR block are:
- - reg11 for regulator 1V1
- - reg18 for regulator 1V8
- - usb33 for the swtich USB3V3
-
-Required properties:
-- compatible: Must be "st,stm32mp1,pwr-reg"
-- list of child nodes that specify the regulator reg11, reg18 or usb33
- initialization data for defined regulators. The definition for each of
- these nodes is defined using the standard binding for regulators found at
- Documentation/devicetree/bindings/regulator/regulator.txt.
-- vdd-supply: phandle to the parent supply/regulator node for vdd input
-- vdd_3v3_usbfs-supply: phandle to the parent supply/regulator node for usb33
-
-Example:
-
-pwr_regulators: pwr@50001000 {
- compatible = "st,stm32mp1,pwr-reg";
- reg = <0x50001000 0x10>;
- vdd-supply = <&vdd>;
- vdd_3v3_usbfs-supply = <&vdd_usb>;
-
- reg11: reg11 {
- regulator-name = "reg11";
- regulator-min-microvolt = <1100000>;
- regulator-max-microvolt = <1100000>;
- };
-
- reg18: reg18 {
- regulator-name = "reg18";
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- };
-
- usb33: usb33 {
- regulator-name = "usb33";
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- };
-};
diff --git a/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.yaml b/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.yaml
new file mode 100644
index 000000000000..8d8f38fe85dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/st,stm32mp1-pwr-reg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32MP1 PWR voltage regulators
+
+maintainers:
+ - Pascal Paillet <p.paillet@st.com>
+
+properties:
+ compatible:
+ const: st,stm32mp1,pwr-reg
+
+ reg:
+ maxItems: 1
+
+ vdd-supply:
+ description: Input supply phandle(s) for vdd input
+
+ vdd_3v3_usbfs-supply:
+ description: Input supply phandle(s) for vdd_3v3_usbfs input
+
+patternProperties:
+ "^(reg11|reg18|usb33)$":
+ type: object
+
+ allOf:
+ - $ref: "regulator.yaml#"
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ pwr@50001000 {
+ compatible = "st,stm32mp1,pwr-reg";
+ reg = <0x50001000 0x10>;
+ vdd-supply = <&vdd>;
+ vdd_3v3_usbfs-supply = <&vdd_usb>;
+
+ reg11 {
+ regulator-name = "reg11";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ };
+
+ reg18 {
+ regulator-name = "reg18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ usb33 {
+ regulator-name = "usb33";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/reset/allwinner,sun6i-a31-clock-reset.yaml b/Documentation/devicetree/bindings/reset/allwinner,sun6i-a31-clock-reset.yaml
new file mode 100644
index 000000000000..001c0d2a8c1f
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/allwinner,sun6i-a31-clock-reset.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/allwinner,sun6i-a31-clock-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 Peripheral Reset Controller Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+deprecated: true
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun6i-a31-ahb1-reset
+ - allwinner,sun6i-a31-clock-reset
+
+ # The PRCM on the A31 and A23 will have the reg property missing,
+ # since it's set at the upper level node, and will be validated by
+ # PRCM's schema. Make sure we only validate standalone nodes.
+ required:
+ - compatible
+ - reg
+
+properties:
+ "#reset-cells":
+ const: 1
+ description: >
+ This additional argument passed to that reset controller is the
+ offset of the bit controlling this particular reset line in the
+ register.
+
+ compatible:
+ enum:
+ - allwinner,sun6i-a31-ahb1-reset
+ - allwinner,sun6i-a31-clock-reset
+
+ reg:
+ maxItems: 1
+
+required:
+ - "#reset-cells"
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ ahb1_rst: reset@1c202c0 {
+ #reset-cells = <1>;
+ compatible = "allwinner,sun6i-a31-ahb1-reset";
+ reg = <0x01c202c0 0xc>;
+ };
+
+ - |
+ apbs_rst: reset@80014b0 {
+ #reset-cells = <1>;
+ compatible = "allwinner,sun6i-a31-clock-reset";
+ reg = <0x080014b0 0x4>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt b/Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt
deleted file mode 100644
index 4ca66c96fe97..000000000000
--- a/Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Allwinner sunxi Peripheral Reset Controller
-===========================================
-
-Please also refer to reset.txt in this directory for common reset
-controller binding usage.
-
-Required properties:
-- compatible: Should be one of the following:
- "allwinner,sun6i-a31-ahb1-reset"
- "allwinner,sun6i-a31-clock-reset"
-- reg: should be register base and length as documented in the
- datasheet
-- #reset-cells: 1, see below
-
-example:
-
-ahb1_rst: reset@1c202c0 {
- #reset-cells = <1>;
- compatible = "allwinner,sun6i-a31-ahb1-reset";
- reg = <0x01c202c0 0xc>;
-};
diff --git a/Documentation/devicetree/bindings/reset/brcm,brcmstb-reset.txt b/Documentation/devicetree/bindings/reset/brcm,brcmstb-reset.txt
index 6e5341b4f891..ee59409640f2 100644
--- a/Documentation/devicetree/bindings/reset/brcm,brcmstb-reset.txt
+++ b/Documentation/devicetree/bindings/reset/brcm,brcmstb-reset.txt
@@ -22,6 +22,6 @@ Example:
};
&ethernet_switch {
- resets = <&reset>;
+ resets = <&reset 26>;
reset-names = "switch";
};
diff --git a/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt b/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt
index c223e54452da..802523196ee5 100644
--- a/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt
+++ b/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt
@@ -2,6 +2,7 @@ HWRNG support for the iproc-rng200 driver
Required properties:
- compatible : Must be one of:
+ "brcm,bcm2711-rng200"
"brcm,bcm7211-rng200"
"brcm,bcm7278-rng200"
"brcm,iproc-rng200"
diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
deleted file mode 100644
index 130ca5b98253..000000000000
--- a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-STM32 Real Time Clock
-
-Required properties:
-- compatible: can be one of the following:
- - "st,stm32-rtc" for devices compatible with stm32(f4/f7).
- - "st,stm32h7-rtc" for devices compatible with stm32h7.
- - "st,stm32mp1-rtc" for devices compatible with stm32mp1.
-- reg: address range of rtc register set.
-- clocks: can use up to two clocks, depending on part used:
- - "rtc_ck": RTC clock source.
- - "pclk": RTC APB interface clock.
- It is not present on stm32(f4/f7).
- It is required on stm32(h7/mp1).
-- clock-names: must be "rtc_ck" and "pclk".
- It is required on stm32(h7/mp1).
-- interrupts: rtc alarm interrupt. On stm32mp1, a second interrupt is required
- for rtc alarm wakeup interrupt.
-- st,syscfg: phandle/offset/mask triplet. The phandle to pwrcfg used to
- access control register at offset, and change the dbp (Disable Backup
- Protection) bit represented by the mask, mandatory to disable/enable backup
- domain (RTC registers) write protection.
- It is required on stm32(f4/f7/h7).
-
-Optional properties (to override default rtc_ck parent clock on stm32(f4/f7/h7):
-- assigned-clocks: reference to the rtc_ck clock entry.
-- assigned-clock-parents: phandle of the new parent clock of rtc_ck.
-
-Example:
-
- rtc: rtc@40002800 {
- compatible = "st,stm32-rtc";
- reg = <0x40002800 0x400>;
- clocks = <&rcc 1 CLK_RTC>;
- assigned-clocks = <&rcc 1 CLK_RTC>;
- assigned-clock-parents = <&rcc 1 CLK_LSE>;
- interrupt-parent = <&exti>;
- interrupts = <17 1>;
- st,syscfg = <&pwrcfg 0x00 0x100>;
- };
-
- rtc: rtc@58004000 {
- compatible = "st,stm32h7-rtc";
- reg = <0x58004000 0x400>;
- clocks = <&rcc RTCAPB_CK>, <&rcc RTC_CK>;
- clock-names = "pclk", "rtc_ck";
- assigned-clocks = <&rcc RTC_CK>;
- assigned-clock-parents = <&rcc LSE_CK>;
- interrupt-parent = <&exti>;
- interrupts = <17 1>;
- interrupt-names = "alarm";
- st,syscfg = <&pwrcfg 0x00 0x100>;
- };
-
- rtc: rtc@5c004000 {
- compatible = "st,stm32mp1-rtc";
- reg = <0x5c004000 0x400>;
- clocks = <&rcc RTCAPB>, <&rcc RTC>;
- clock-names = "pclk", "rtc_ck";
- interrupts-extended = <&intc GIC_SPI 3 IRQ_TYPE_NONE>,
- <&exti 19 1>;
- };
diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml
new file mode 100644
index 000000000000..0a54296d7218
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml
@@ -0,0 +1,139 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/st,stm32-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Real Time Clock Bindings
+
+maintainers:
+ - Gabriel Fernandez <gabriel.fernandez@st.com>
+
+properties:
+ compatible:
+ enum:
+ - st,stm32-rtc
+ - st,stm32h7-rtc
+ - st,stm32mp1-rtc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: rtc_ck
+
+ interrupts:
+ maxItems: 1
+
+ st,syscfg:
+ allOf:
+ - $ref: "/schemas/types.yaml#/definitions/phandle-array"
+ - items:
+ minItems: 3
+ maxItems: 3
+ description: |
+ Phandle/offset/mask triplet. The phandle to pwrcfg used to
+ access control register at offset, and change the dbp (Disable Backup
+ Protection) bit represented by the mask, mandatory to disable/enable backup
+ domain (RTC registers) write protection.
+
+ assigned-clocks:
+ description: |
+ override default rtc_ck parent clock reference to the rtc_ck clock entry
+ maxItems: 1
+
+ assigned-clock-parents:
+ description: |
+ override default rtc_ck parent clock phandle of the new parent clock of rtc_ck
+ maxItems: 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-rtc
+
+ then:
+ properties:
+ clocks:
+ minItems: 1
+ maxItems: 1
+
+ clock-names: false
+
+ required:
+ - st,syscfg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32h7-rtc
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+
+ required:
+ - clock-names
+ - st,syscfg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32mp1-rtc
+
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+
+ assigned-clocks: false
+ assigned-clock-parents: false
+
+ required:
+ - clock-names
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/mfd/stm32f4-rcc.h>
+ #include <dt-bindings/clock/stm32fx-clock.h>
+ rtc@40002800 {
+ compatible = "st,stm32-rtc";
+ reg = <0x40002800 0x400>;
+ clocks = <&rcc 1 CLK_RTC>;
+ assigned-clocks = <&rcc 1 CLK_RTC>;
+ assigned-clock-parents = <&rcc 1 CLK_LSE>;
+ interrupt-parent = <&exti>;
+ interrupts = <17 1>;
+ st,syscfg = <&pwrcfg 0x00 0x100>;
+ };
+
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ rtc@5c004000 {
+ compatible = "st,stm32mp1-rtc";
+ reg = <0x5c004000 0x400>;
+ clocks = <&rcc RTCAPB>, <&rcc RTC>;
+ clock-names = "pclk", "rtc_ck";
+ interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
index f5f5ab0fd14e..c904e2e68332 100644
--- a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
@@ -10,6 +10,8 @@ Required properties:
on i.MX7ULP SoC with 32-bit little-endian register organization
- "fsl,imx8qxp-lpuart" for lpuart compatible with the one integrated
on i.MX8QXP SoC with 32-bit little-endian register organization
+ - "fsl,imx8qm-lpuart" for lpuart compatible with the one integrated
+ on i.MX8QM SoC with 32-bit little-endian register organization
- reg : Address and length of the register set for the device
- interrupts : Should contain uart interrupt
- clocks : phandle + clock specifier pairs, one for each entry in clock-names
diff --git a/Documentation/devicetree/bindings/serial/rs485.txt b/Documentation/devicetree/bindings/serial/rs485.txt
index b92592dff6dd..a7fe93efc4a5 100644
--- a/Documentation/devicetree/bindings/serial/rs485.txt
+++ b/Documentation/devicetree/bindings/serial/rs485.txt
@@ -1,31 +1 @@
-* RS485 serial communications
-
-The RTS signal is capable of automatically controlling line direction for
-the built-in half-duplex mode.
-The properties described hereafter shall be given to a half-duplex capable
-UART node.
-
-Optional properties:
-- rs485-rts-delay: prop-encoded-array <a b> where:
- * a is the delay between rts signal and beginning of data sent in milliseconds.
- it corresponds to the delay before sending data.
- * b is the delay between end of data sent and rts signal in milliseconds
- it corresponds to the delay after sending data and actual release of the line.
- If this property is not specified, <0 0> is assumed.
-- rs485-rts-active-low: drive RTS low when sending (default is high).
-- linux,rs485-enabled-at-boot-time: empty property telling to enable the rs485
- feature at boot time. It can be disabled later with proper ioctl.
-- rs485-rx-during-tx: empty property that enables the receiving of data even
- while sending data.
-
-RS485 example for Atmel USART:
- usart0: serial@fff8c000 {
- compatible = "atmel,at91sam9260-usart";
- reg = <0xfff8c000 0x4000>;
- interrupts = <7>;
- atmel,use-dma-rx;
- atmel,use-dma-tx;
- linux,rs485-enabled-at-boot-time;
- rs485-rts-delay = <0 200>; // in milliseconds
- };
-
+See rs485.yaml
diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml
new file mode 100644
index 000000000000..d4beaf11222d
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/rs485.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/rs485.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RS485 serial communications Bindings
+
+description: The RTS signal is capable of automatically controlling
+ line direction for the built-in half-duplex mode.
+ The properties described hereafter shall be given to a
+ half-duplex capable UART node.
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+properties:
+ rs485-rts-delay:
+ description: prop-encoded-array <a b>
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - items:
+ items:
+ - description:
+ Delay between rts signal and beginning of data sent in milliseconds.
+ It corresponds to the delay before sending data.
+ default: 0
+ maximum: 1000
+ - description:
+ Delay between end of data sent and rts signal in milliseconds.
+ It corresponds to the delay after sending data and actual release of the line.
+ default: 0
+ maximum: 1000
+
+ rs485-rts-active-low:
+ description: drive RTS low when sending (default is high).
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ linux,rs485-enabled-at-boot-time:
+ description: enables the rs485 feature at boot time. It can be disabled later with proper ioctl.
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ rs485-rx-during-tx:
+ description: enables the receiving of data even while sending data.
+ $ref: /schemas/types.yaml#/definitions/flag
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
new file mode 100644
index 000000000000..238c44192d31
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/st,stm32-uart.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/st,stm32-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+maintainers:
+ - Erwan Le Ray <erwan.leray@st.com>
+
+title: STMicroelectronics STM32 USART bindings
+
+allOf:
+ - $ref: rs485.yaml
+
+properties:
+ compatible:
+ enum:
+ - st,stm32-uart
+ - st,stm32f7-uart
+ - st,stm32h7-uart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ label:
+ description: label associated with this uart
+
+ st,hw-flow-ctrl:
+ description: enable hardware flow control
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ dmas:
+ minItems: 1
+ maxItems: 2
+
+ dma-names:
+ items:
+ enum: [ rx, tx ]
+ minItems: 1
+ maxItems: 2
+
+ wakeup-source: true
+
+ rs485-rts-delay: true
+ rs485-rts-active-low: true
+ linux,rs485-enabled-at-boot-time: true
+ rs485-rx-during-tx: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ usart1: serial@40011000 {
+ compatible = "st,stm32-uart";
+ reg = <0x40011000 0x400>;
+ interrupts = <37>;
+ clocks = <&rcc 0 164>;
+ dmas = <&dma2 2 4 0x414 0x0>,
+ <&dma2 7 4 0x414 0x0>;
+ dma-names = "rx", "tx";
+ rs485-rts-active-low;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
deleted file mode 100644
index 8620f7fcbd50..000000000000
--- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-* STMicroelectronics STM32 USART
-
-Required properties:
-- compatible: can be either:
- - "st,stm32-uart",
- - "st,stm32f7-uart",
- - "st,stm32h7-uart".
- depending is compatible with stm32(f4), stm32f7 or stm32h7.
-- reg: The address and length of the peripheral registers space
-- interrupts:
- - The interrupt line for the USART instance,
- - An optional wake-up interrupt.
-- clocks: The input clock of the USART instance
-
-Optional properties:
-- resets: Must contain the phandle to the reset controller.
-- pinctrl: The reference on the pins configuration
-- st,hw-flow-ctrl: bool flag to enable hardware flow control.
-- rs485-rts-delay, rs485-rx-during-tx, rs485-rts-active-low,
- linux,rs485-enabled-at-boot-time: see rs485.txt.
-- dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt
-- dma-names: "rx" and/or "tx"
-- wakeup-source: bool flag to indicate this device has wakeup capabilities
-- interrupt-names, if optional wake-up interrupt is used, should be:
- - "event": the name for the interrupt line of the USART instance
- - "wakeup" the name for the optional wake-up interrupt
-
-
-Examples:
-usart4: serial@40004c00 {
- compatible = "st,stm32-uart";
- reg = <0x40004c00 0x400>;
- interrupts = <52>;
- clocks = <&clk_pclk1>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_usart4>;
-};
-
-usart2: serial@40004400 {
- compatible = "st,stm32-uart";
- reg = <0x40004400 0x400>;
- interrupts = <38>;
- clocks = <&clk_pclk1>;
- st,hw-flow-ctrl;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_usart2 &pinctrl_usart2_rtscts>;
-};
-
-usart1: serial@40011000 {
- compatible = "st,stm32-uart";
- reg = <0x40011000 0x400>;
- interrupts = <37>;
- clocks = <&rcc 0 164>;
- dmas = <&dma2 2 4 0x414 0x0>,
- <&dma2 7 4 0x414 0x0>;
- dma-names = "rx", "tx";
-};
diff --git a/Documentation/devicetree/bindings/slimbus/bus.txt b/Documentation/devicetree/bindings/slimbus/bus.txt
index 52fa6426388c..bbe871f82a8b 100644
--- a/Documentation/devicetree/bindings/slimbus/bus.txt
+++ b/Documentation/devicetree/bindings/slimbus/bus.txt
@@ -32,6 +32,10 @@ Required property for SLIMbus child node if it is present:
Product Code, shall be in lower case hexadecimal with leading
zeroes suppressed
+Optional property for SLIMbus child node if it is present:
+- slim-ifc-dev - Should be phandle to SLIMBus Interface device.
+ Required for devices which deal with streams.
+
SLIMbus example for Qualcomm's slimbus manager component:
slim@28080000 {
@@ -43,8 +47,14 @@ SLIMbus example for Qualcomm's slimbus manager component:
#address-cells = <2>;
#size-cell = <0>;
+ codec_ifd: ifd@0,0{
+ compatible = "slim217,60";
+ reg = <0 0>;
+ };
+
codec: wcd9310@1,0{
compatible = "slim217,60";
reg = <1 0>;
+ slim-ifc-dev = <&codec_ifd>;
};
};
diff --git a/Documentation/devicetree/bindings/soc/ti/k3-ringacc.txt b/Documentation/devicetree/bindings/soc/ti/k3-ringacc.txt
new file mode 100644
index 000000000000..59758ccce809
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/ti/k3-ringacc.txt
@@ -0,0 +1,59 @@
+* Texas Instruments K3 NavigatorSS Ring Accelerator
+
+The Ring Accelerator (RA) is a machine which converts read/write accesses
+from/to a constant address into corresponding read/write accesses from/to a
+circular data structure in memory. The RA eliminates the need for each DMA
+controller which needs to access ring elements from having to know the current
+state of the ring (base address, current offset). The DMA controller
+performs a read or write access to a specific address range (which maps to the
+source interface on the RA) and the RA replaces the address for the transaction
+with a new address which corresponds to the head or tail element of the ring
+(head for reads, tail for writes).
+
+The Ring Accelerator is a hardware module that is responsible for accelerating
+management of the packet queues. The K3 SoCs can have more than one RA instances
+
+Required properties:
+- compatible : Must be "ti,am654-navss-ringacc";
+- reg : Should contain register location and length of the following
+ named register regions.
+- reg-names : should be
+ "rt" - The RA Ring Real-time Control/Status Registers
+ "fifos" - The RA Queues Registers
+ "proxy_gcfg" - The RA Proxy Global Config Registers
+ "proxy_target" - The RA Proxy Datapath Registers
+- ti,num-rings : Number of rings supported by RA
+- ti,sci-rm-range-gp-rings : TI-SCI RM subtype for GP ring range
+- ti,sci : phandle on TI-SCI compatible System controller node
+- ti,sci-dev-id : TI-SCI device id of the ring accelerator
+- msi-parent : phandle for "ti,sci-inta" interrupt controller
+
+Optional properties:
+ -- ti,dma-ring-reset-quirk : enable ringacc / udma ring state interoperability
+ issue software w/a
+
+Example:
+
+ringacc: ringacc@3c000000 {
+ compatible = "ti,am654-navss-ringacc";
+ reg = <0x0 0x3c000000 0x0 0x400000>,
+ <0x0 0x38000000 0x0 0x400000>,
+ <0x0 0x31120000 0x0 0x100>,
+ <0x0 0x33000000 0x0 0x40000>;
+ reg-names = "rt", "fifos",
+ "proxy_gcfg", "proxy_target";
+ ti,num-rings = <818>;
+ ti,sci-rm-range-gp-rings = <0x2>; /* GP ring range */
+ ti,dma-ring-reset-quirk;
+ ti,sci = <&dmsc>;
+ ti,sci-dev-id = <187>;
+ msi-parent = <&inta_main_udmass>;
+};
+
+client:
+
+dma_ipx: dma_ipx@<addr> {
+ ...
+ ti,ringacc = <&ringacc>;
+ ...
+}
diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
index 3080979350a0..fa4545ed81ca 100644
--- a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
+++ b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt
@@ -17,6 +17,9 @@ Required properties:
* "arb" : memory ARB line (required)
* "rst" : dedicated device reset line (optional)
- #sound-dai-cells: must be 0.
+- amlogic,fifo-depth: The size of the controller's fifo in bytes. This
+ is useful for determining certain configuration such
+ as the flush threshold of the fifo
Example of FRDDR A on the A113 SoC:
@@ -27,4 +30,5 @@ frddr_a: audio-controller@1c0 {
interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
resets = <&arb AXG_ARB_FRDDR_A>;
+ fifo-depth = <512>;
};
diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
index 1d4d9f938689..cb9a25165503 100644
--- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt
@@ -8,7 +8,12 @@ three substreams within totally 10 channels.
Required properties:
- - compatible : Contains "fsl,imx35-asrc" or "fsl,imx53-asrc".
+ - compatible : Compatible list, should contain one of the following
+ compatibles:
+ "fsl,imx35-asrc",
+ "fsl,imx53-asrc",
+ "fsl,imx8qm-asrc",
+ "fsl,imx8qxp-asrc",
- reg : Offset and length of the register set for the device.
@@ -35,6 +40,11 @@ Required properties:
- fsl,asrc-width : Defines a mutual sample width used by DPCM Back Ends.
+ - fsl,asrc-clk-map : Defines clock map used in driver. which is required
+ by imx8qm/imx8qxp platform
+ <0> - select the map for asrc0 in imx8qm/imx8qxp
+ <1> - select the map for asrc1 in imx8qm/imx8qxp
+
Optional properties:
- big-endian : If this property is absent, the little endian mode
diff --git a/Documentation/devicetree/bindings/sound/gtm601.txt b/Documentation/devicetree/bindings/sound/gtm601.txt
index 5efc8c068de0..efa32a486c4a 100644
--- a/Documentation/devicetree/bindings/sound/gtm601.txt
+++ b/Documentation/devicetree/bindings/sound/gtm601.txt
@@ -1,10 +1,16 @@
GTM601 UMTS modem audio interface CODEC
-This device has no configuration interface. Sample rate is fixed - 8kHz.
+This device has no configuration interface. The sample rate and channels are
+based on the compatible string
+ "option,gtm601" = 8kHz mono
+ "broadmobi,bm818" = 48KHz stereo
Required properties:
- - compatible : "option,gtm601"
+ - compatible : one of
+ "option,gtm601"
+ "broadmobi,bm818"
+
Example:
diff --git a/Documentation/devicetree/bindings/sound/ingenic,codec.yaml b/Documentation/devicetree/bindings/sound/ingenic,codec.yaml
new file mode 100644
index 000000000000..eb4be86464bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ingenic,codec.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ingenic,codec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ingenic JZ47xx internal codec DT bindings
+
+maintainers:
+ - Paul Cercueil <paul@crapouillou.net>
+
+properties:
+ $nodename:
+ pattern: '^audio-codec@.*'
+
+ compatible:
+ oneOf:
+ - const: ingenic,jz4770-codec
+ - const: ingenic,jz4725b-codec
+ - const: ingenic,jz4740-codec
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: aic
+
+ '#sound-dai-cells':
+ const: 0
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#sound-dai-cells'
+
+examples:
+ - |
+ #include <dt-bindings/clock/jz4740-cgu.h>
+ codec: audio-codec@10020080 {
+ compatible = "ingenic,jz4740-codec";
+ reg = <0x10020080 0x8>;
+ #sound-dai-cells = <0>;
+ clocks = <&cgu JZ4740_CLK_AIC>;
+ clock-names = "aic";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/ingenic,jz4725b-codec.txt b/Documentation/devicetree/bindings/sound/ingenic,jz4725b-codec.txt
deleted file mode 100644
index 05adc0d47b13..000000000000
--- a/Documentation/devicetree/bindings/sound/ingenic,jz4725b-codec.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Ingenic JZ4725B codec controller
-
-Required properties:
-- compatible : "ingenic,jz4725b-codec"
-- reg : codec registers location and length
-- clocks : phandle to the AIC clock.
-- clock-names: must be set to "aic".
-- #sound-dai-cells: Must be set to 0.
-
-Example:
-
-codec: audio-codec@100200a4 {
- compatible = "ingenic,jz4725b-codec";
- reg = <0x100200a4 0x8>;
-
- #sound-dai-cells = <0>;
-
- clocks = <&cgu JZ4725B_CLK_AIC>;
- clock-names = "aic";
-};
diff --git a/Documentation/devicetree/bindings/sound/ingenic,jz4740-codec.txt b/Documentation/devicetree/bindings/sound/ingenic,jz4740-codec.txt
deleted file mode 100644
index 1ffcade87e7b..000000000000
--- a/Documentation/devicetree/bindings/sound/ingenic,jz4740-codec.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Ingenic JZ4740 codec controller
-
-Required properties:
-- compatible : "ingenic,jz4740-codec"
-- reg : codec registers location and length
-- clocks : phandle to the AIC clock.
-- clock-names: must be set to "aic".
-- #sound-dai-cells: Must be set to 0.
-
-Example:
-
-codec: audio-codec@10020080 {
- compatible = "ingenic,jz4740-codec";
- reg = <0x10020080 0x8>;
-
- #sound-dai-cells = <0>;
-
- clocks = <&cgu JZ4740_CLK_AIC>;
- clock-names = "aic";
-};
diff --git a/Documentation/devicetree/bindings/sound/qcom,sdm845.txt b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt
index 408c4837e6d5..ca8c89e88bfa 100644
--- a/Documentation/devicetree/bindings/sound/qcom,sdm845.txt
+++ b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt
@@ -5,7 +5,10 @@ This binding describes the SDM845 sound card, which uses qdsp for audio.
- compatible:
Usage: required
Value type: <stringlist>
- Definition: must be "qcom,sdm845-sndcard"
+ Definition: must be one of this
+ "qcom,sdm845-sndcard"
+ "qcom,db845c-sndcard"
+ "lenovo,yoga-c630-sndcard"
- audio-routing:
Usage: Optional
diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
new file mode 100644
index 000000000000..38eaf0c028f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
@@ -0,0 +1,175 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wcd934x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for Qualcomm WCD9340/WCD9341 Audio Codec
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ Qualcomm WCD9340/WCD9341 Codec is a standalone Hi-Fi audio codec IC.
+ It has in-built Soundwire controller, pin controller, interrupt mux and
+ supports both I2S/I2C and SLIMbus audio interfaces.
+
+properties:
+ compatible:
+ const: slim217,250
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ description: GPIO spec for reset line to use
+ maxItems: 1
+
+ slim-ifc-dev: true
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: extclk
+
+ vdd-buck-supply:
+ description: A reference to the 1.8V buck supply
+
+ vdd-buck-sido-supply:
+ description: A reference to the 1.8V SIDO buck supply
+
+ vdd-rx-supply:
+ description: A reference to the 1.8V rx supply
+
+ vdd-tx-supply:
+ description: A reference to the 1.8V tx supply
+
+ vdd-vbat-supply:
+ description: A reference to the vbat supply
+
+ vdd-io-supply:
+ description: A reference to the 1.8V I/O supply
+
+ vdd-micbias-supply:
+ description: A reference to the micbias supply
+
+ qcom,micbias1-microvolt:
+ description: micbias1 voltage
+ minimum: 1800000
+ maximum: 2850000
+
+ qcom,micbias2-microvolt:
+ description: micbias2 voltage
+ minimum: 1800000
+ maximum: 2850000
+
+ qcom,micbias3-microvolt:
+ description: micbias3 voltage
+ minimum: 1800000
+ maximum: 2850000
+
+ qcom,micbias4-microvolt:
+ description: micbias4 voltage
+ minimum: 1800000
+ maximum: 2850000
+
+ clock-output-names:
+ const: mclk
+
+ clock-frequency:
+ description: Clock frequency of output clk in Hz
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 1
+
+ '#clock-cells':
+ const: 0
+
+ '#sound-dai-cells':
+ const: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ gpio@42:
+ type: object
+ allOf:
+ - $ref: ../gpio/qcom,wcd934x-gpio.yaml#
+
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ type: object
+ description: |
+ WCD934x subnode for each slave devices. Bindings of each subnodes
+ depends on the specific driver providing the functionality and
+ documented in their respective bindings.
+
+ properties:
+ reg:
+ maxItems: 1
+
+ required:
+ - reg
+
+required:
+ - compatible
+ - reg
+ - reset-gpios
+ - slim-ifc-dev
+ - interrupts
+ - interrupt-controller
+ - clock-frequency
+ - clock-output-names
+ - qcom,micbias1-microvolt
+ - qcom,micbias2-microvolt
+ - qcom,micbias3-microvolt
+ - qcom,micbias4-microvolt
+ - "#interrupt-cells"
+ - "#clock-cells"
+ - "#sound-dai-cells"
+ - "#address-cells"
+ - "#size-cells"
+
+examples:
+ - |
+ codec@1,0{
+ compatible = "slim217,250";
+ reg = <1 0>;
+ reset-gpios = <&tlmm 64 0>;
+ slim-ifc-dev = <&wcd9340_ifd>;
+ #sound-dai-cells = <1>;
+ interrupt-parent = <&tlmm>;
+ interrupts = <54 4>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ #clock-cells = <0>;
+ clock-frequency = <9600000>;
+ clock-output-names = "mclk";
+ qcom,micbias1-microvolt = <1800000>;
+ qcom,micbias2-microvolt = <1800000>;
+ qcom,micbias3-microvolt = <1800000>;
+ qcom,micbias4-microvolt = <1800000>;
+ clock-names = "extclk";
+ clocks = <&rpmhcc 2>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ gpio@42 {
+ compatible = "qcom,wcd9340-gpio";
+ reg = <0x42 0x2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml b/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml
new file mode 100644
index 000000000000..ea44d03e58ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wsa881x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for Qualcomm WSA8810/WSA8815 Class-D Smart Speaker Amplifier
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ WSA8810 is a class-D smart speaker amplifier and WSA8815
+ is a high-output power class-D smart speaker amplifier.
+ Their primary operating mode uses a SoundWire digital audio
+ interface. This binding is for SoundWire interface.
+
+properties:
+ compatible:
+ const: sdw10217201000
+
+ reg:
+ maxItems: 1
+
+ powerdown-gpios:
+ description: GPIO spec for Powerdown/Shutdown line to use
+ maxItems: 1
+
+ '#thermal-sensor-cells':
+ const: 0
+
+ '#sound-dai-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - powerdown-gpios
+ - "#thermal-sensor-cells"
+ - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ soundwire@c2d0000 {
+ #address-cells = <2>;
+ #size-cells = <0>;
+ reg = <0x0c2d0000 0x2000>;
+
+ speaker@0,1 {
+ compatible = "sdw10217201000";
+ reg = <0 1>;
+ powerdown-gpios = <&wcdpinctrl 2 0>;
+ #thermal-sensor-cells = <0>;
+ #sound-dai-cells = <0>;
+ };
+
+ speaker@0,2 {
+ compatible = "sdw10217201000";
+ reg = <0 2>;
+ powerdown-gpios = <&wcdpinctrl 2 0>;
+ #thermal-sensor-cells = <0>;
+ #sound-dai-cells = <0>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/rt1015.txt b/Documentation/devicetree/bindings/sound/rt1015.txt
new file mode 100644
index 000000000000..fcfd02d8d32f
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rt1015.txt
@@ -0,0 +1,17 @@
+RT1015 Mono Class D Audio Amplifier
+
+This device supports I2C only.
+
+Required properties:
+
+- compatible : "realtek,rt1015".
+
+- reg : The I2C address of the device.
+
+
+Example:
+
+rt1015: codec@28 {
+ compatible = "realtek,rt1015";
+ reg = <0x28>;
+};
diff --git a/Documentation/devicetree/bindings/sound/rt5645.txt b/Documentation/devicetree/bindings/sound/rt5645.txt
index a03f9a872a71..41a62fd2ae1f 100644
--- a/Documentation/devicetree/bindings/sound/rt5645.txt
+++ b/Documentation/devicetree/bindings/sound/rt5645.txt
@@ -10,6 +10,10 @@ Required properties:
- interrupts : The CODEC's interrupt output.
+- avdd-supply: Power supply for AVDD, providing 1.8V.
+
+- cpvdd-supply: Power supply for CPVDD, providing 3.5V.
+
Optional properties:
- hp-detect-gpios:
diff --git a/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt b/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
new file mode 100644
index 000000000000..436547f3b155
--- /dev/null
+++ b/Documentation/devicetree/bindings/soundwire/qcom,sdw.txt
@@ -0,0 +1,167 @@
+Qualcomm SoundWire Controller Bindings
+
+
+This binding describes the Qualcomm SoundWire Controller along with its
+board specific bus parameters.
+
+- compatible:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "qcom,soundwire-v<MAJOR>.<MINOR>.<STEP>",
+ Example:
+ "qcom,soundwire-v1.3.0"
+ "qcom,soundwire-v1.5.0"
+ "qcom,soundwire-v1.6.0"
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: the base address and size of SoundWire controller
+ address space.
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify the SoundWire Controller IRQ
+
+- clock-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: should be "iface" for SoundWire Controller interface clock
+
+- clocks:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify the SoundWire Controller interface clock
+
+- #sound-dai-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: must be 1 for digital audio interfaces on the controller.
+
+- qcom,dout-ports:
+ Usage: required
+ Value type: <u32>
+ Definition: must be count of data out ports
+
+- qcom,din-ports:
+ Usage: required
+ Value type: <u32>
+ Definition: must be count of data in ports
+
+- qcom,ports-offset1:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify payload transport window offset1 of each
+ data port. Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-offset2:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify payload transport window offset2 of each
+ data port. Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-sinterval-low:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should be sample interval low of each data port.
+ Out ports followed by In ports. Used for Sample Interval
+ calculation.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-word-length:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: should be size of payload channel sample.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-block-pack-mode:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: should be 0 or 1 to indicate the block packing mode.
+ 0 to indicate Blocks are per Channel
+ 1 to indicate Blocks are per Port.
+ Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-block-group-count:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: should be in range 1 to 4 to indicate how many sample
+ intervals are combined into a payload.
+ Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-lane-control:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: should be in range 0 to 7 to identify which data lane
+ the data port uses.
+ Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-hstart:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: should be number identifying lowerst numbered coloum in
+ SoundWire Frame, i.e. left edge of the Transport sub-frame
+ for each port. Values between 0 and 15 are valid.
+ Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-hstop:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: should be number identifying highest numbered coloum in
+ SoundWire Frame, i.e. the right edge of the Transport
+ sub-frame for each port. Values between 0 and 15 are valid.
+ Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,dports-type:
+ Usage: optional
+ Value type: <prop-encoded-array>
+ Definition: should be one of the following types
+ 0 for reduced port
+ 1 for simple ports
+ 2 for full port
+ Out ports followed by In ports.
+ More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+Note:
+ More Information on detail of encoding of these fields can be
+found in MIPI Alliance SoundWire 1.0 Specifications.
+
+= SoundWire devices
+Each subnode of the bus represents SoundWire device attached to it.
+The properties of these nodes are defined by the individual bindings.
+
+= EXAMPLE
+The following example represents a SoundWire controller on DB845c board
+which has controller integrated inside WCD934x codec on SDM845 SoC.
+
+soundwire: soundwire@c85 {
+ compatible = "qcom,soundwire-v1.3.0";
+ reg = <0xc85 0x20>;
+ interrupts = <20 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&wcc>;
+ clock-names = "iface";
+ #sound-dai-cells = <1>;
+ qcom,dports-type = <0>;
+ qcom,dout-ports = <6>;
+ qcom,din-ports = <2>;
+ qcom,ports-sinterval-low = /bits/ 8 <0x07 0x1F 0x3F 0x7 0x1F 0x3F 0x0F 0x0F>;
+ qcom,ports-offset1 = /bits/ 8 <0x01 0x02 0x0C 0x6 0x12 0x0D 0x07 0x0A >;
+ qcom,ports-offset2 = /bits/ 8 <0x00 0x00 0x1F 0x00 0x00 0x1F 0x00 0x00>;
+
+ /* Left Speaker */
+ left{
+ ....
+ };
+
+ /* Right Speaker */
+ right{
+ ....
+ };
+};
diff --git a/Documentation/devicetree/bindings/soundwire/soundwire-controller.yaml b/Documentation/devicetree/bindings/soundwire/soundwire-controller.yaml
index 1b43993bccdb..330924b8618e 100644
--- a/Documentation/devicetree/bindings/soundwire/soundwire-controller.yaml
+++ b/Documentation/devicetree/bindings/soundwire/soundwire-controller.yaml
@@ -69,6 +69,7 @@ examples:
reg = <0 1>;
powerdown-gpios = <&wcdpinctrl 2 0>;
#thermal-sensor-cells = <0>;
+ #sound-dai-cells = <0>;
};
speaker@0,2 {
@@ -76,6 +77,7 @@ examples:
reg = <0 2>;
powerdown-gpios = <&wcdpinctrl 2 0>;
#thermal-sensor-cells = <0>;
+ #sound-dai-cells = <0>;
};
};
diff --git a/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt b/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt
index 1fd9a4406a1d..b98203ca656d 100644
--- a/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt
+++ b/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt
@@ -12,6 +12,7 @@ Required properties:
- clock-names: Should be "clk_apb5".
- pinctrl-names : a pinctrl state named "default" must be defined.
- pinctrl-0 : phandle referencing pin configuration of the device.
+ - resets : phandle to the reset control for this device.
- cs-gpios: Specifies the gpio pins to be used for chipselects.
See: Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -19,16 +20,6 @@ Optional properties:
- clock-frequency : Input clock frequency to the PSPI block in Hz.
Default is 25000000 Hz.
-Aliases:
-- All the SPI controller nodes should be represented in the aliases node using
- the following format 'spi{n}' withe the correct numbered in "aliases" node.
-
-Example:
-
-aliases {
- spi0 = &spi0;
-};
-
spi0: spi@f0200000 {
compatible = "nuvoton,npcm750-pspi";
reg = <0xf0200000 0x1000>;
@@ -39,5 +30,6 @@ spi0: spi@f0200000 {
interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk NPCM7XX_CLK_APB5>;
clock-names = "clk_apb5";
+ resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>
cs-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
};
diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml
index 732339275848..1e0ca6ccf64b 100644
--- a/Documentation/devicetree/bindings/spi/spi-controller.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-controller.yaml
@@ -111,7 +111,7 @@ patternProperties:
spi-rx-bus-width:
allOf:
- $ref: /schemas/types.yaml#/definitions/uint32
- - enum: [ 1, 2, 4 ]
+ - enum: [ 1, 2, 4, 8 ]
- default: 1
description:
Bus width to the SPI bus used for MISO.
@@ -123,7 +123,7 @@ patternProperties:
spi-tx-bus-width:
allOf:
- $ref: /schemas/types.yaml#/definitions/uint32
- - enum: [ 1, 2, 4 ]
+ - enum: [ 1, 2, 4, 8 ]
- default: 1
description:
Bus width to the SPI bus used for MOSI.
diff --git a/Documentation/devicetree/bindings/spi/spi-stm32.txt b/Documentation/devicetree/bindings/spi/spi-stm32.txt
deleted file mode 100644
index d82755c63eaf..000000000000
--- a/Documentation/devicetree/bindings/spi/spi-stm32.txt
+++ /dev/null
@@ -1,62 +0,0 @@
-STMicroelectronics STM32 SPI Controller
-
-The STM32 SPI controller is used to communicate with external devices using
-the Serial Peripheral Interface. It supports full-duplex, half-duplex and
-simplex synchronous serial communication with external devices. It supports
-from 4 to 32-bit data size. Although it can be configured as master or slave,
-only master is supported by the driver.
-
-Required properties:
-- compatible: Should be one of:
- "st,stm32h7-spi"
- "st,stm32f4-spi"
-- reg: Offset and length of the device's register set.
-- interrupts: Must contain the interrupt id.
-- clocks: Must contain an entry for spiclk (which feeds the internal clock
- generator).
-- #address-cells: Number of cells required to define a chip select address.
-- #size-cells: Should be zero.
-
-Optional properties:
-- resets: Must contain the phandle to the reset controller.
-- A pinctrl state named "default" may be defined to set pins in mode of
- operation for SPI transfer.
-- dmas: DMA specifiers for tx and rx dma. DMA fifo mode must be used. See the
- STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt.
-- dma-names: DMA request names should include "tx" and "rx" if present.
-- cs-gpios: list of GPIO chip selects. See the SPI bus bindings,
- Documentation/devicetree/bindings/spi/spi-bus.txt
-
-
-Child nodes represent devices on the SPI bus
- See ../spi/spi-bus.txt
-
-Optional properties:
-- st,spi-midi-ns: Only for STM32H7, (Master Inter-Data Idleness) minimum time
- delay in nanoseconds inserted between two consecutive data
- frames.
-
-
-Example:
- spi2: spi@40003800 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "st,stm32h7-spi";
- reg = <0x40003800 0x400>;
- interrupts = <36>;
- clocks = <&rcc SPI2_CK>;
- resets = <&rcc 1166>;
- dmas = <&dmamux1 0 39 0x400 0x01>,
- <&dmamux1 1 40 0x400 0x01>;
- dma-names = "rx", "tx";
- pinctrl-0 = <&spi2_pins_b>;
- pinctrl-names = "default";
- cs-gpios = <&gpioa 11 0>;
-
- aardvark@0 {
- compatible = "totalphase,aardvark";
- reg = <0>;
- spi-max-frequency = <4000000>;
- st,spi-midi-ns = <4000>;
- };
- };
diff --git a/Documentation/devicetree/bindings/spi/spi_atmel.txt b/Documentation/devicetree/bindings/spi/spi_atmel.txt
index f99c733d75c1..5bb4a8f1df7a 100644
--- a/Documentation/devicetree/bindings/spi/spi_atmel.txt
+++ b/Documentation/devicetree/bindings/spi/spi_atmel.txt
@@ -1,7 +1,7 @@
Atmel SPI device
Required properties:
-- compatible : should be "atmel,at91rm9200-spi".
+- compatible : should be "atmel,at91rm9200-spi" or "microchip,sam9x60-spi".
- reg: Address and length of the register set for the device
- interrupts: Should contain spi interrupt
- cs-gpios: chipselects (optional for SPI controller version >= 2 with the
diff --git a/Documentation/devicetree/bindings/spi/st,stm32-spi.yaml b/Documentation/devicetree/bindings/spi/st,stm32-spi.yaml
new file mode 100644
index 000000000000..f0d979664f07
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/st,stm32-spi.yaml
@@ -0,0 +1,105 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/st,stm32-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 SPI Controller bindings
+
+description: |
+ The STM32 SPI controller is used to communicate with external devices using
+ the Serial Peripheral Interface. It supports full-duplex, half-duplex and
+ simplex synchronous serial communication with external devices. It supports
+ from 4 to 32-bit data size.
+
+maintainers:
+ - Erwan Leray <erwan.leray@st.com>
+ - Fabrice Gasnier <fabrice.gasnier@st.com>
+
+allOf:
+ - $ref: "spi-controller.yaml#"
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32f4-spi
+
+ then:
+ properties:
+ st,spi-midi-ns: false
+
+properties:
+ compatible:
+ enum:
+ - st,stm32f4-spi
+ - st,stm32h7-spi
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ dmas:
+ description: |
+ DMA specifiers for tx and rx dma. DMA fifo mode must be used. See
+ the STM32 DMA bindings Documentation/devicetree/bindings/dma/stm32-dma.txt.
+ items:
+ - description: rx DMA channel
+ - description: tx DMA channel
+
+ dma-names:
+ items:
+ - const: rx
+ - const: tx
+
+patternProperties:
+ "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-f]+$":
+ type: object
+ # SPI slave nodes must be children of the SPI master node and can
+ # contain the following properties.
+ properties:
+ st,spi-midi-ns:
+ description: |
+ Only for STM32H7, (Master Inter-Data Idleness) minimum time
+ delay in nanoseconds inserted between two consecutive data frames.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ #include <dt-bindings/reset/stm32mp1-resets.h>
+ spi@4000b000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32h7-spi";
+ reg = <0x4000b000 0x400>;
+ interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&rcc SPI2_K>;
+ resets = <&rcc SPI2_R>;
+ dmas = <&dmamux1 0 39 0x400 0x05>,
+ <&dmamux1 1 40 0x400 0x05>;
+ dma-names = "rx", "tx";
+ cs-gpios = <&gpioa 11 0>;
+
+ aardvark@0 {
+ compatible = "totalphase,aardvark";
+ reg = <0>;
+ spi-max-frequency = <4000000>;
+ st,spi-midi-ns = <4000>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
new file mode 100644
index 000000000000..80bac7a182d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
@@ -0,0 +1,140 @@
+# SPDX-License-Identifier: GPL-2.0+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sram/allwinner,sun4i-a10-system-control.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 System Control Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+description:
+ The SRAM controller found on most Allwinner devices is represented
+ by a regular node for the SRAM controller itself, with sub-nodes
+ representing the SRAM handled by the SRAM controller.
+
+properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ compatible:
+ oneOf:
+ - const: allwinner,sun4i-a10-sram-controller
+ deprecated: true
+ - const: allwinner,sun4i-a10-system-control
+ - const: allwinner,sun5i-a13-system-control
+ - items:
+ - const: allwinner,sun7i-a20-system-control
+ - const: allwinner,sun4i-a10-system-control
+ - const: allwinner,sun8i-a23-system-control
+ - const: allwinner,sun8i-h3-system-control
+ - const: allwinner,sun50i-a64-sram-controller
+ deprecated: true
+ - const: allwinner,sun50i-a64-system-control
+ - const: allwinner,sun50i-h5-system-control
+ - items:
+ - const: allwinner,sun50i-h6-system-control
+ - const: allwinner,sun50i-a64-system-control
+ - items:
+ - const: allwinner,suniv-f1c100s-system-control
+ - const: allwinner,sun4i-a10-system-control
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+patternProperties:
+ "^sram@[a-z0-9]+":
+ type: object
+
+ properties:
+ compatible:
+ const: mmio-sram
+
+ patternProperties:
+ "^sram-section?@[a-f0-9]+$":
+ type: object
+
+ properties:
+ compatible:
+ oneOf:
+ - const: allwinner,sun4i-a10-sram-a3-a4
+ - const: allwinner,sun4i-a10-sram-c1
+ - const: allwinner,sun4i-a10-sram-d
+ - const: allwinner,sun50i-a64-sram-c
+ - items:
+ - const: allwinner,sun5i-a13-sram-a3-a4
+ - const: allwinner,sun4i-a10-sram-a3-a4
+ - items:
+ - const: allwinner,sun7i-a20-sram-a3-a4
+ - const: allwinner,sun4i-a10-sram-a3-a4
+ - items:
+ - const: allwinner,sun5i-a13-sram-c1
+ - const: allwinner,sun4i-a10-sram-c1
+ - items:
+ - const: allwinner,sun7i-a20-sram-c1
+ - const: allwinner,sun4i-a10-sram-c1
+ - items:
+ - const: allwinner,sun8i-a23-sram-c1
+ - const: allwinner,sun4i-a10-sram-c1
+ - items:
+ - const: allwinner,sun8i-h3-sram-c1
+ - const: allwinner,sun4i-a10-sram-c1
+ - items:
+ - const: allwinner,sun50i-a64-sram-c1
+ - const: allwinner,sun4i-a10-sram-c1
+ - items:
+ - const: allwinner,sun50i-h5-sram-c1
+ - const: allwinner,sun4i-a10-sram-c1
+ - items:
+ - const: allwinner,sun50i-h6-sram-c1
+ - const: allwinner,sun4i-a10-sram-c1
+ - items:
+ - const: allwinner,sun5i-a13-sram-d
+ - const: allwinner,sun4i-a10-sram-d
+ - items:
+ - const: allwinner,sun7i-a20-sram-d
+ - const: allwinner,sun4i-a10-sram-d
+ - items:
+ - const: allwinner,suniv-f1c100s-sram-d
+ - const: allwinner,sun4i-a10-sram-d
+ - items:
+ - const: allwinner,sun50i-h6-sram-c
+ - const: allwinner,sun50i-a64-sram-c
+
+required:
+ - "#address-cells"
+ - "#size-cells"
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ system-control@1c00000 {
+ compatible = "allwinner,sun4i-a10-system-control";
+ reg = <0x01c00000 0x30>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ sram_a: sram@00000000 {
+ compatible = "mmio-sram";
+ reg = <0x00000000 0xc000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x00000000 0xc000>;
+
+ emac_sram: sram-section@8000 {
+ compatible = "allwinner,sun4i-a10-sram-a3-a4";
+ reg = <0x8000 0x4000>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sram/sram.yaml b/Documentation/devicetree/bindings/sram/sram.yaml
index ee2287a1b14d..7b83cc6c9bfa 100644
--- a/Documentation/devicetree/bindings/sram/sram.yaml
+++ b/Documentation/devicetree/bindings/sram/sram.yaml
@@ -55,7 +55,7 @@ properties:
type: boolean
patternProperties:
- "^([a-z]*-)?sram@[a-f0-9]+$":
+ "^([a-z]*-)?sram(-section)?@[a-f0-9]+$":
type: object
description:
Each child of the sram node specifies a region of reserved memory.
@@ -64,15 +64,20 @@ patternProperties:
description:
Should contain a vendor specific string in the form
<vendor>,[<device>-]<usage>
- enum:
- - allwinner,sun9i-a80-smp-sram
- - amlogic,meson8-smp-sram
- - amlogic,meson8b-smp-sram
- - renesas,smp-sram
- - rockchip,rk3066-smp-sram
- - samsung,exynos4210-sysram
- - samsung,exynos4210-sysram-ns
- - socionext,milbeaut-smp-sram
+ contains:
+ enum:
+ - allwinner,sun4i-a10-sram-a3-a4
+ - allwinner,sun4i-a10-sram-c1
+ - allwinner,sun4i-a10-sram-d
+ - allwinner,sun9i-a80-smp-sram
+ - allwinner,sun50i-a64-sram-c
+ - amlogic,meson8-smp-sram
+ - amlogic,meson8b-smp-sram
+ - renesas,smp-sram
+ - rockchip,rk3066-smp-sram
+ - samsung,exynos4210-sysram
+ - samsung,exynos4210-sysram-ns
+ - socionext,milbeaut-smp-sram
reg:
description:
diff --git a/Documentation/devicetree/bindings/sram/sunxi-sram.txt b/Documentation/devicetree/bindings/sram/sunxi-sram.txt
deleted file mode 100644
index 380246a805f2..000000000000
--- a/Documentation/devicetree/bindings/sram/sunxi-sram.txt
+++ /dev/null
@@ -1,113 +0,0 @@
-Allwinnner SoC SRAM controllers
------------------------------------------------------
-
-The SRAM controller found on most Allwinner devices is represented by
-a regular node for the SRAM controller itself, with sub-nodes
-reprensenting the SRAM handled by the SRAM controller.
-
-Controller Node
----------------
-
-Required properties:
-- compatible : should be:
- - "allwinner,sun4i-a10-sram-controller" (deprecated)
- - "allwinner,sun4i-a10-system-control"
- - "allwinner,sun5i-a13-system-control"
- - "allwinner,sun7i-a20-system-control", "allwinner,sun4i-a10-system-control"
- - "allwinner,sun8i-a23-system-control"
- - "allwinner,sun8i-h3-system-control"
- - "allwinner,sun50i-a64-sram-controller" (deprecated)
- - "allwinner,sun50i-a64-system-control"
- - "allwinner,sun50i-h5-system-control"
- - "allwinner,sun50i-h6-system-control", "allwinner,sun50i-a64-system-control"
- - "allwinner,suniv-f1c100s-system-control", "allwinner,sun4i-a10-system-control"
-- reg : sram controller register offset + length
-
-SRAM nodes
-----------
-
-Each SRAM is described using the mmio-sram bindings documented in
-Documentation/devicetree/bindings/sram/sram.txt
-
-Each SRAM will have SRAM sections that are going to be handled by the
-SRAM controller as subnodes. These sections are represented following
-once again the representation described in the mmio-sram binding.
-
-The valid sections compatible for A10 are:
- - allwinner,sun4i-a10-sram-a3-a4
- - allwinner,sun4i-a10-sram-c1
- - allwinner,sun4i-a10-sram-d
-
-The valid sections compatible for A13 are:
- - allwinner,sun5i-a13-sram-a3-a4, allwinner,sun4i-a10-sram-a3-a4
- - allwinner,sun5i-a13-sram-c1, allwinner,sun4i-a10-sram-c1
- - allwinner,sun5i-a13-sram-d, allwinner,sun4i-a10-sram-d
-
-The valid sections compatible for A20 are:
- - allwinner,sun7i-a20-sram-a3-a4, allwinner,sun4i-a10-sram-a3-a4
- - allwinner,sun7i-a20-sram-c1, allwinner,sun4i-a10-sram-c1
- - allwinner,sun7i-a20-sram-d, allwinner,sun4i-a10-sram-d
-
-The valid sections compatible for A23/A33 are:
- - allwinner,sun8i-a23-sram-c1, allwinner,sun4i-a10-sram-c1
-
-The valid sections compatible for H3 are:
- - allwinner,sun8i-h3-sram-c1, allwinner,sun4i-a10-sram-c1
-
-The valid sections compatible for A64 are:
- - allwinner,sun50i-a64-sram-c
- - allwinner,sun50i-a64-sram-c1, allwinner,sun4i-a10-sram-c1
-
-The valid sections compatible for H5 are:
- - allwinner,sun50i-h5-sram-c1, allwinner,sun4i-a10-sram-c1
-
-The valid sections compatible for H6 are:
- - allwinner,sun50i-h6-sram-c, allwinner,sun50i-a64-sram-c
- - allwinner,sun50i-h6-sram-c1, allwinner,sun4i-a10-sram-c1
-
-The valid sections compatible for F1C100s are:
- - allwinner,suniv-f1c100s-sram-d, allwinner,sun4i-a10-sram-d
-
-Devices using SRAM sections
----------------------------
-
-Some devices need to request to the SRAM controller to map an SRAM for
-their exclusive use.
-
-The relationship between such a device and an SRAM section is
-expressed through the allwinner,sram property, that will take a
-phandle and an argument.
-
-This valid values for this argument are:
- - 0: CPU
- - 1: Device
-
-Example
--------
-system-control@1c00000 {
- compatible = "allwinner,sun4i-a10-system-control";
- reg = <0x01c00000 0x30>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- sram_a: sram@00000000 {
- compatible = "mmio-sram";
- reg = <0x00000000 0xc000>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0 0x00000000 0xc000>;
-
- emac_sram: sram-section@8000 {
- compatible = "allwinner,sun4i-a10-sram-a3-a4";
- reg = <0x8000 0x4000>;
- };
- };
-};
-
-emac: ethernet@1c0b000 {
- compatible = "allwinner,sun4i-a10-emac";
- ...
-
- allwinner,sram = <&emac_sram 1>;
-};
diff --git a/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
new file mode 100644
index 000000000000..87369264feb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
@@ -0,0 +1,160 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/allwinner,sun8i-a83t-ths.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner SUN8I Thermal Controller Device Tree Bindings
+
+maintainers:
+ - Vasily Khoruzhick <anarsoul@gmail.com>
+ - Yangtao Li <tiny.windzz@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - allwinner,sun8i-a83t-ths
+ - allwinner,sun8i-h3-ths
+ - allwinner,sun8i-r40-ths
+ - allwinner,sun50i-a64-ths
+ - allwinner,sun50i-h5-ths
+ - allwinner,sun50i-h6-ths
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+
+ clock-names:
+ minItems: 1
+ maxItems: 2
+ items:
+ - const: bus
+ - const: mod
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ nvmem-cells:
+ maxItems: 1
+ description: Calibration data for thermal sensors
+
+ nvmem-cell-names:
+ const: calibration
+
+ # See ./thermal.txt for details
+ "#thermal-sensor-cells":
+ enum:
+ - 0
+ - 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun50i-h6-ths
+
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ maxItems: 1
+
+ else:
+ properties:
+ clocks:
+ minItems: 2
+
+ clock-names:
+ minItems: 2
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun8i-h3-ths
+
+ then:
+ properties:
+ "#thermal-sensor-cells":
+ const: 0
+
+ else:
+ properties:
+ "#thermal-sensor-cells":
+ const: 1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - const: allwinner,sun8i-h3-ths
+ - const: allwinner,sun8i-r40-ths
+ - const: allwinner,sun50i-a64-ths
+ - const: allwinner,sun50i-h5-ths
+ - const: allwinner,sun50i-h6-ths
+
+ then:
+ required:
+ - clocks
+ - clock-names
+ - resets
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - '#thermal-sensor-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ thermal-sensor@1f04000 {
+ compatible = "allwinner,sun8i-a83t-ths";
+ reg = <0x01f04000 0x100>;
+ interrupts = <0 31 0>;
+ nvmem-cells = <&ths_calibration>;
+ nvmem-cell-names = "calibration";
+ #thermal-sensor-cells = <1>;
+ };
+
+ - |
+ thermal-sensor@1c25000 {
+ compatible = "allwinner,sun8i-h3-ths";
+ reg = <0x01c25000 0x400>;
+ clocks = <&ccu 0>, <&ccu 1>;
+ clock-names = "bus", "mod";
+ resets = <&ccu 2>;
+ interrupts = <0 31 0>;
+ nvmem-cells = <&ths_calibration>;
+ nvmem-cell-names = "calibration";
+ #thermal-sensor-cells = <0>;
+ };
+
+ - |
+ thermal-sensor@5070400 {
+ compatible = "allwinner,sun50i-h6-ths";
+ reg = <0x05070400 0x100>;
+ clocks = <&ccu 0>;
+ clock-names = "bus";
+ resets = <&ccu 2>;
+ interrupts = <0 15 0>;
+ nvmem-cells = <&ths_calibration>;
+ nvmem-cell-names = "calibration";
+ #thermal-sensor-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
new file mode 100644
index 000000000000..d9fdf4809a49
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/brcm,avs-ro-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom AVS ring oscillator thermal
+
+maintainers:
+ - Stefan Wahren <wahrenst@gmx.net>
+
+description: |+
+ The thermal node should be the child of a syscon node with the
+ required property:
+
+ - compatible: Should be one of the following:
+ "brcm,bcm2711-avs-monitor", "syscon", "simple-mfd"
+
+ Refer to the the bindings described in
+ Documentation/devicetree/bindings/mfd/syscon.txt
+
+properties:
+ compatible:
+ const: brcm,bcm2711-thermal
+
+ # See ./thermal.txt for details
+ "#thermal-sensor-cells":
+ const: 0
+
+required:
+ - compatible
+ - '#thermal-sensor-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ avs-monitor@7d5d2000 {
+ compatible = "brcm,bcm2711-avs-monitor",
+ "syscon", "simple-mfd";
+ reg = <0x7d5d2000 0xf00>;
+
+ thermal: thermal {
+ compatible = "brcm,bcm2711-thermal";
+ #thermal-sensor-cells = <0>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt b/Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt
index 43a9ed545944..74a9ef09db8b 100644
--- a/Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt
+++ b/Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt
@@ -3,9 +3,13 @@
Thermal management core, provided by the AVS TMON hardware block.
Required properties:
-- compatible: must be "brcm,avs-tmon" and/or "brcm,avs-tmon-bcm7445"
+- compatible: must be one of:
+ "brcm,avs-tmon-bcm7216"
+ "brcm,avs-tmon-bcm7445"
+ "brcm,avs-tmon"
- reg: address range for the AVS TMON registers
-- interrupts: temperature monitor interrupt, for high/low threshold triggers
+- interrupts: temperature monitor interrupt, for high/low threshold triggers,
+ required except for "brcm,avs-tmon-bcm7216"
- interrupt-names: should be "tmon"
Example:
diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml
index b3f0fe96ff0d..102f319833d9 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml
@@ -99,22 +99,22 @@ examples:
compatible = "arm,armv7-timer-mem";
#address-cells = <1>;
#size-cells = <1>;
- ranges;
+ ranges = <0 0xf0001000 0x1000>;
reg = <0xf0000000 0x1000>;
clock-frequency = <50000000>;
- frame@f0001000 {
+ frame@0 {
frame-number = <0>;
interrupts = <0 13 0x8>,
<0 14 0x8>;
- reg = <0xf0001000 0x1000>,
- <0xf0002000 0x1000>;
+ reg = <0x0000 0x1000>,
+ <0x1000 0x1000>;
};
- frame@f0003000 {
+ frame@2000 {
frame-number = <1>;
interrupts = <0 15 0x8>;
- reg = <0xf0003000 0x1000>;
+ reg = <0x2000 0x1000>;
};
};
diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.txt b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
index a444cfc5852a..a747fabab7d3 100644
--- a/Documentation/devicetree/bindings/timer/renesas,cmt.txt
+++ b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
@@ -29,6 +29,8 @@ Required Properties:
- "renesas,r8a77470-cmt1" for the 48-bit CMT1 device included in r8a77470.
- "renesas,r8a774a1-cmt0" for the 32-bit CMT0 device included in r8a774a1.
- "renesas,r8a774a1-cmt1" for the 48-bit CMT devices included in r8a774a1.
+ - "renesas,r8a774b1-cmt0" for the 32-bit CMT0 device included in r8a774b1.
+ - "renesas,r8a774b1-cmt1" for the 48-bit CMT devices included in r8a774b1.
- "renesas,r8a774c0-cmt0" for the 32-bit CMT0 device included in r8a774c0.
- "renesas,r8a774c0-cmt1" for the 48-bit CMT devices included in r8a774c0.
- "renesas,r8a7790-cmt0" for the 32-bit CMT0 device included in r8a7790.
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 765fd1c170df..978de7d37c66 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -104,6 +104,10 @@ properties:
- infineon,slb9645tt
# Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor
- infineon,tlv493d-a1b6
+ # Infineon Multi-phase Digital VR Controller xdpe12254
+ - infineon,xdpe12254
+ # Infineon Multi-phase Digital VR Controller xdpe12284
+ - infineon,xdpe12284
# Inspur Power System power supply unit version 1
- inspur,ipsps1
# Intersil ISL29028 Ambient Light and Proximity Sensor
@@ -132,6 +136,8 @@ properties:
- maxim,max6621
# 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface
- maxim,max6625
+ # 3-Channel Remote Temperature Sensor
+ - maxim,max31730
# mCube 3-axis 8-bit digital accelerometer
- mcube,mc3230
# MEMSIC 2-axis 8-bit digital accelerometer
@@ -354,6 +360,10 @@ properties:
- ti,tmp103
# Digital Temperature Sensor
- ti,tmp275
+ # TI Dual channel DCAP+ multiphase controller TPS53679
+ - ti,tps53679
+ # TI Dual channel DCAP+ multiphase controller TPS53688
+ - ti,tps53688
# Winbond/Nuvoton H/W Monitor
- winbond,w83793
# i2c trusted platform module (TPM)
diff --git a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
index 4efb77b653ab..267fce165994 100644
--- a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
+++ b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
@@ -107,7 +107,7 @@ examples:
reg = <0xff400000 0x40000>;
interrupts = <31>;
clocks = <&clkc_usb1>;
- clock-names = "ddr";
+ clock-names = "otg";
phys = <&usb2_phy1>;
dr_mode = "peripheral";
g-rx-fifo-size = <192>;
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
index cfc9f40ab641..51376cbe5f3d 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
@@ -15,6 +15,10 @@ Required properties:
"qcom,ci-hdrc"
"chipidea,usb2"
"xlnx,zynq-usb-2.20a"
+ "nvidia,tegra20-udc"
+ "nvidia,tegra30-udc"
+ "nvidia,tegra114-udc"
+ "nvidia,tegra124-udc"
- reg: base address and length of the registers
- interrupts: interrupt for the USB controller
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
deleted file mode 100644
index aafff3a6904d..000000000000
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-Platform DesignWare HS OTG USB 2.0 controller
------------------------------------------------------
-
-Required properties:
-- compatible : One of:
- - brcm,bcm2835-usb: The DWC2 USB controller instance in the BCM2835 SoC.
- - hisilicon,hi6220-usb: The DWC2 USB controller instance in the hi6220 SoC.
- - rockchip,rk3066-usb: The DWC2 USB controller instance in the rk3066 Soc;
- - "rockchip,px30-usb", "rockchip,rk3066-usb", "snps,dwc2": for px30 Soc;
- - "rockchip,rk3188-usb", "rockchip,rk3066-usb", "snps,dwc2": for rk3188 Soc;
- - "rockchip,rk3288-usb", "rockchip,rk3066-usb", "snps,dwc2": for rk3288 Soc;
- - "lantiq,arx100-usb": The DWC2 USB controller instance in Lantiq ARX SoCs;
- - "lantiq,xrx200-usb": The DWC2 USB controller instance in Lantiq XRX SoCs;
- - "amlogic,meson8-usb": The DWC2 USB controller instance in Amlogic Meson8 SoCs;
- - "amlogic,meson8b-usb": The DWC2 USB controller instance in Amlogic Meson8b SoCs;
- - "amlogic,meson-gxbb-usb": The DWC2 USB controller instance in Amlogic S905 SoCs;
- - "amlogic,meson-g12a-usb": The DWC2 USB controller instance in Amlogic G12A SoCs;
- - "amcc,dwc-otg": The DWC2 USB controller instance in AMCC Canyonlands 460EX SoCs;
- - snps,dwc2: A generic DWC2 USB controller with default parameters.
- - "st,stm32f4x9-fsotg": The DWC2 USB FS/HS controller instance in STM32F4x9 SoCs
- configured in FS mode;
- - "st,stm32f4x9-hsotg": The DWC2 USB HS controller instance in STM32F4x9 SoCs
- configured in HS mode;
- - "st,stm32f7-hsotg": The DWC2 USB HS controller instance in STM32F7 SoCs
- configured in HS mode;
-- reg : Should contain 1 register range (address and length)
-- interrupts : Should contain 1 interrupt
-- clocks: clock provider specifier
-- clock-names: shall be "otg"
-Refer to clk/clock-bindings.txt for generic clock consumer properties
-
-Optional properties:
-- phys: phy provider specifier
-- phy-names: shall be "usb2-phy"
-- vbus-supply: reference to the VBUS regulator. Depending on the current mode
- this is enabled (in "host" mode") or disabled (in "peripheral" mode). The
- regulator is updated if the controller is configured in "otg" mode and the
- status changes between "host" and "peripheral".
-Refer to phy/phy-bindings.txt for generic phy consumer properties
-- dr_mode: shall be one of "host", "peripheral" and "otg"
- Refer to usb/generic.txt
-- g-rx-fifo-size: size of rx fifo size in gadget mode.
-- g-np-tx-fifo-size: size of non-periodic tx fifo size in gadget mode.
-- g-tx-fifo-size: size of periodic tx fifo per endpoint (except ep0) in gadget mode.
-- snps,need-phy-for-wake: If present indicates that the phy needs to be left
- on for remote wakeup during suspend.
-- snps,reset-phy-on-wake: If present indicates that we need to reset the PHY when
- we detect a wakeup. This is due to a hardware errata.
-
-Deprecated properties:
-- g-use-dma: gadget DMA mode is automatically detected
-
-Example:
-
- usb@101c0000 {
- compatible = "ralink,rt3050-usb, snps,dwc2";
- reg = <0x101c0000 40000>;
- interrupts = <18>;
- clocks = <&usb_otg_ahb_clk>;
- clock-names = "otg";
- phys = <&usbphy>;
- phy-names = "usb2-phy";
- snps,need-phy-for-wake;
- };
diff --git a/Documentation/devicetree/bindings/usb/dwc2.yaml b/Documentation/devicetree/bindings/usb/dwc2.yaml
new file mode 100644
index 000000000000..71cf7ba32237
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/dwc2.yaml
@@ -0,0 +1,151 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/dwc2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: DesignWare HS OTG USB 2.0 controller Bindings
+
+maintainers:
+ - Rob Herring <robh@kernel.org>
+
+properties:
+ compatible:
+ oneOf:
+ - const: brcm,bcm2835-usb
+ - const: hisilicon,hi6220-usb
+ - items:
+ - const: rockchip,rk3066-usb
+ - const: snps,dwc2
+ - items:
+ - const: rockchip,px30-usb
+ - const: rockchip,rk3066-usb
+ - const: snps,dwc2
+ - items:
+ - const: rockchip,rk3036-usb
+ - const: rockchip,rk3066-usb
+ - const: snps,dwc2
+ - items:
+ - const: rockchip,rv1108-usb
+ - const: rockchip,rk3066-usb
+ - const: snps,dwc2
+ - items:
+ - const: rockchip,rk3188-usb
+ - const: rockchip,rk3066-usb
+ - const: snps,dwc2
+ - items:
+ - const: rockchip,rk3228-usb
+ - const: rockchip,rk3066-usb
+ - const: snps,dwc2
+ - items:
+ - const: rockchip,rk3288-usb
+ - const: rockchip,rk3066-usb
+ - const: snps,dwc2
+ - const: lantiq,arx100-usb
+ - const: lantiq,xrx200-usb
+ - items:
+ - const: amlogic,meson8-usb
+ - const: snps,dwc2
+ - items:
+ - const: amlogic,meson8b-usb
+ - const: snps,dwc2
+ - const: amlogic,meson-gxbb-usb
+ - items:
+ - const: amlogic,meson-g12a-usb
+ - const: snps,dwc2
+ - const: amcc,dwc-otg
+ - const: snps,dwc2
+ - const: st,stm32f4x9-fsotg
+ - const: st,stm32f4x9-hsotg
+ - const: st,stm32f7-hsotg
+ - const: samsung,s3c6400-hsotg
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: otg
+
+ resets:
+ items:
+ - description: common reset
+ - description: ecc reset
+ minItems: 1
+
+ reset-names:
+ items:
+ - const: dwc2
+ - const: dwc2-ecc
+ minItems: 1
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ const: usb2-phy
+
+ vbus-supply:
+ description: reference to the VBUS regulator. Depending on the current mode
+ this is enabled (in "host" mode") or disabled (in "peripheral" mode). The
+ regulator is updated if the controller is configured in "otg" mode and the
+ status changes between "host" and "peripheral".
+
+ vusb_d-supply:
+ description: phandle to voltage regulator of digital section,
+
+ vusb_a-supply:
+ description: phandle to voltage regulator of analog section.
+
+ dr_mode:
+ enum: [host, peripheral, otg]
+
+ g-rx-fifo-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: size of rx fifo size in gadget mode.
+
+ g-np-tx-fifo-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: size of non-periodic tx fifo size in gadget mode.
+
+ g-tx-fifo-size:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: size of periodic tx fifo per endpoint (except ep0) in gadget mode.
+
+ snps,need-phy-for-wake:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: If present indicates that the phy needs to be left on for remote wakeup during suspend.
+
+ snps,reset-phy-on-wake:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: If present indicates that we need to reset the PHY when we detect a wakeup.
+ This is due to a hardware errata.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ usb@101c0000 {
+ compatible = "rockchip,rk3066-usb", "snps,dwc2";
+ reg = <0x10180000 0x40000>;
+ interrupts = <18>;
+ clocks = <&usb_otg_ahb_clk>;
+ clock-names = "otg";
+ phys = <&usbphy>;
+ phy-names = "usb2-phy";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt
index cf5a1ad456e6..e6790d2a4da9 100644
--- a/Documentation/devicetree/bindings/usb/generic.txt
+++ b/Documentation/devicetree/bindings/usb/generic.txt
@@ -2,10 +2,11 @@ Generic USB Properties
Optional properties:
- maximum-speed: tells USB controllers we want to work up to a certain
- speed. Valid arguments are "super-speed", "high-speed",
- "full-speed" and "low-speed". In case this isn't passed
- via DT, USB controllers should default to their maximum
- HW capability.
+ speed. Valid arguments are "super-speed-plus",
+ "super-speed", "high-speed", "full-speed" and
+ "low-speed". In case this isn't passed via DT, USB
+ controllers should default to their maximum HW
+ capability.
- dr_mode: tells Dual-Role USB controllers that we want to work on a
particular mode. Valid arguments are "host",
"peripheral" and "otg". In case this attribute isn't
diff --git a/Documentation/devicetree/bindings/usb/mediatek,musb.txt b/Documentation/devicetree/bindings/usb/mediatek,musb.txt
new file mode 100644
index 000000000000..2b8a87c90d9e
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mediatek,musb.txt
@@ -0,0 +1,57 @@
+MediaTek musb DRD/OTG controller
+-------------------------------------------
+
+Required properties:
+ - compatible : should be one of:
+ "mediatek,mt2701-musb"
+ ...
+ followed by "mediatek,mtk-musb"
+ - reg : specifies physical base address and size of
+ the registers
+ - interrupts : interrupt used by musb controller
+ - interrupt-names : must be "mc"
+ - phys : PHY specifier for the OTG phy
+ - dr_mode : should be one of "host", "peripheral" or "otg",
+ refer to usb/generic.txt
+ - clocks : a list of phandle + clock-specifier pairs, one for
+ each entry in clock-names
+ - clock-names : must contain "main", "mcu", "univpll"
+ for clocks of controller
+
+Optional properties:
+ - power-domains : a phandle to USB power domain node to control USB's
+ MTCMOS
+
+Required child nodes:
+ usb connector node as defined in bindings/connector/usb-connector.txt
+Optional properties:
+ - id-gpios : input GPIO for USB ID pin.
+ - vbus-gpios : input GPIO for USB VBUS pin.
+ - vbus-supply : reference to the VBUS regulator, needed when supports
+ dual-role mode
+ - usb-role-switch : use USB Role Switch to support dual-role switch, see
+ usb/generic.txt.
+
+Example:
+
+usb2: usb@11200000 {
+ compatible = "mediatek,mt2701-musb",
+ "mediatek,mtk-musb";
+ reg = <0 0x11200000 0 0x1000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-names = "mc";
+ phys = <&u2port2 PHY_TYPE_USB2>;
+ dr_mode = "otg";
+ clocks = <&pericfg CLK_PERI_USB0>,
+ <&pericfg CLK_PERI_USB0_MCU>,
+ <&pericfg CLK_PERI_USB_SLV>;
+ clock-names = "main","mcu","univpll";
+ power-domains = <&scpsys MT2701_POWER_DOMAIN_IFR_MSC>;
+ usb-role-switch;
+ connector{
+ compatible = "gpio-usb-b-connector", "usb-b-connector";
+ type = "micro";
+ id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>;
+ vbus-supply = <&usb_vbus>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 6046f4555852..1bc7b3c4b591 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -109,6 +109,8 @@ patternProperties:
description: Artesyn Embedded Technologies Inc.
"^asahi-kasei,.*":
description: Asahi Kasei Corp.
+ "^asc,.*":
+ description: All Sensors Corporation
"^aspeed,.*":
description: ASPEED Technology Inc.
"^asus,.*":
@@ -149,6 +151,8 @@ patternProperties:
description: Bosch Sensortec GmbH
"^boundary,.*":
description: Boundary Devices Inc.
+ "^broadmobi,.*":
+ description: Shanghai Broadmobi Communication Technology Co.,Ltd.
"^brcm,.*":
description: Broadcom Corporation
"^buffalo,.*":
@@ -157,6 +161,8 @@ patternProperties:
description: B&R Industrial Automation GmbH
"^bticino,.*":
description: Bticino International
+ "^calaosystems,.*":
+ description: CALAO Systems SAS
"^calxeda,.*":
description: Calxeda
"^capella,.*":
@@ -475,6 +481,8 @@ patternProperties:
description: Shenzhen Jesurun Electronics Business Dept.
"^jianda,.*":
description: Jiandangjing Technology Co., Ltd.
+ "^kam,.*":
+ description: Kamstrup A/S
"^karo,.*":
description: Ka-Ro electronics GmbH
"^keithkoep,.*":
@@ -513,6 +521,8 @@ patternProperties:
description: Lantiq Semiconductor
"^lattice,.*":
description: Lattice Semiconductor
+ "^leadtek,.*":
+ description: Shenzhen Leadtek Technology Co., Ltd.
"^leez,.*":
description: Leez
"^lego,.*":
@@ -613,6 +623,8 @@ patternProperties:
description: Moxa Inc.
"^mpl,.*":
description: MPL AG
+ "^mps,.*":
+ description: Monolithic Power Systems Inc.
"^mqmaker,.*":
description: mqmaker Inc.
"^mscc,.*":
@@ -717,6 +729,8 @@ patternProperties:
description: Panasonic Corporation
"^parade,.*":
description: Parade Technologies Inc.
+ "^parallax,.*":
+ description: Parallax Inc.
"^pda,.*":
description: Precision Design Associates, Inc.
"^pericom,.*":
@@ -823,6 +837,8 @@ patternProperties:
description: Sancloud Ltd
"^sandisk,.*":
description: Sandisk Corporation
+ "^satoz,.*":
+ description: Satoz International Co., Ltd
"^sbs,.*":
description: Smart Battery System
"^schindler,.*":
@@ -911,8 +927,12 @@ patternProperties:
description: Startek
"^ste,.*":
description: ST-Ericsson
+ deprecated: true
"^stericsson,.*":
description: ST-Ericsson
+ "^st-ericsson,.*":
+ description: ST-Ericsson
+ deprecated: true
"^summit,.*":
description: Summit microelectronics
"^sunchip,.*":
@@ -1056,10 +1076,14 @@ patternProperties:
description: Extreme Engineering Solutions (X-ES)
"^xillybus,.*":
description: Xillybus Ltd.
+ "^xinpeng,.*":
+ description: Shenzhen Xinpeng Technology Co., Ltd
"^xlnx,.*":
description: Xilinx
"^xunlong,.*":
description: Shenzhen Xunlong Software CO.,Limited
+ "^xylon,.*":
+ description: Xylon
"^yones-toptech,.*":
description: Yones Toptech Co., Ltd.
"^ysoft,.*":
diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt
index a5bf04dba410..79b3c62f183d 100644
--- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt
@@ -19,6 +19,7 @@ Required properties:
- "renesas,r8a7794-wdt" (R-Car E2)
- "renesas,r8a7795-wdt" (R-Car H3)
- "renesas,r8a7796-wdt" (R-Car M3-W)
+ - "renesas,r8a77961-wdt" (R-Car M3-W+)
- "renesas,r8a77965-wdt" (R-Car M3-N)
- "renesas,r8a77970-wdt" (R-Car V3M)
- "renesas,r8a77990-wdt" (R-Car E3)
diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
deleted file mode 100644
index d8f4430b0a13..000000000000
--- a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-STM32 Independent WatchDoG (IWDG)
----------------------------------
-
-Required properties:
-- compatible: Should be either:
- - "st,stm32-iwdg"
- - "st,stm32mp1-iwdg"
-- reg: Physical base address and length of the registers set for the device
-- clocks: Reference to the clock entry lsi. Additional pclk clock entry
- is required only for st,stm32mp1-iwdg.
-- clock-names: Name of the clocks used.
- "lsi" for st,stm32-iwdg
- "lsi", "pclk" for st,stm32mp1-iwdg
-
-Optional Properties:
-- timeout-sec: Watchdog timeout value in seconds.
-
-Example:
-
-iwdg: watchdog@40003000 {
- compatible = "st,stm32-iwdg";
- reg = <0x40003000 0x400>;
- clocks = <&clk_lsi>;
- clock-names = "lsi";
- timeout-sec = <32>;
-};
diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
new file mode 100644
index 000000000000..a27c504e2e4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/st,stm32-iwdg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32 Independent WatchDoG (IWDG) bindings
+
+maintainers:
+ - Yannick Fertre <yannick.fertre@st.com>
+ - Christophe Roullier <christophe.roullier@st.com>
+
+allOf:
+ - $ref: "watchdog.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - st,stm32-iwdg
+ - st,stm32mp1-iwdg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Low speed clock
+ - description: Optional peripheral clock
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ enum:
+ - lsi
+ - pclk
+ minItems: 1
+ maxItems: 2
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ watchdog@5a002000 {
+ compatible = "st,stm32mp1-iwdg";
+ reg = <0x5a002000 0x400>;
+ clocks = <&rcc IWDG2>, <&rcc CK_LSI>;
+ clock-names = "pclk", "lsi";
+ timeout-sec = <32>;
+ };
+
+...
diff --git a/Documentation/devicetree/writing-schema.rst b/Documentation/devicetree/writing-schema.rst
index efcd5d21dc2b..7635ab230456 100644
--- a/Documentation/devicetree/writing-schema.rst
+++ b/Documentation/devicetree/writing-schema.rst
@@ -121,7 +121,13 @@ Several executables (dt-doc-validate, dt-mk-schema, dt-validate) will be
installed. Ensure they are in your PATH (~/.local/bin by default).
dtc must also be built with YAML output support enabled. This requires that
-libyaml and its headers be installed on the host system.
+libyaml and its headers be installed on the host system. For some distributions
+that involves installing the development package, such as:
+
+Debian:
+ apt-get install libyaml-dev
+Fedora:
+ dnf -y install libyaml-devel
Running checks
~~~~~~~~~~~~~~
diff --git a/Documentation/doc-guide/contributing.rst b/Documentation/doc-guide/contributing.rst
new file mode 100644
index 000000000000..10956583d22e
--- /dev/null
+++ b/Documentation/doc-guide/contributing.rst
@@ -0,0 +1,294 @@
+.. SPDX-License-Identifier: GPL-2.0
+How to help improve kernel documentation
+========================================
+
+Documentation is an important part of any software-development project.
+Good documentation helps to bring new developers in and helps established
+developers work more effectively. Without top-quality documentation, a lot
+of time is wasted in reverse-engineering the code and making avoidable
+mistakes.
+
+Unfortunately, the kernel's documentation currently falls far short of what
+it needs to be to support a project of this size and importance.
+
+This guide is for contributors who would like to improve that situation.
+Kernel documentation improvements can be made by developers at a variety of
+skill levels; they are a relatively easy way to learn the kernel process in
+general and find a place in the community. The bulk of what follows is the
+documentation maintainer's list of tasks that most urgently need to be
+done.
+
+The documentation TODO list
+---------------------------
+
+There is an endless list of tasks that need to be carried out to get our
+documentation to where it should be. This list contains a number of
+important items, but is far from exhaustive; if you see a different way to
+improve the documentation, please do not hold back!
+
+Addressing warnings
+~~~~~~~~~~~~~~~~~~~
+
+The documentation build currently spews out an unbelievable number of
+warnings. When you have that many, you might as well have none at all;
+people ignore them, and they will never notice when their work adds new
+ones. For this reason, eliminating warnings is one of the highest-priority
+tasks on the documentation TODO list. The task itself is reasonably
+straightforward, but it must be approached in the right way to be
+successful.
+
+Warnings issued by a compiler for C code can often be dismissed as false
+positives, leading to patches aimed at simply shutting the compiler up.
+Warnings from the documentation build almost always point at a real
+problem; making those warnings go away requires understanding the problem
+and fixing it at its source. For this reason, patches fixing documentation
+warnings should probably not say "fix a warning" in the changelog title;
+they should indicate the real problem that has been fixed.
+
+Another important point is that documentation warnings are often created by
+problems in kerneldoc comments in C code. While the documentation
+maintainer appreciates being copied on fixes for these warnings, the
+documentation tree is often not the right one to actually carry those
+fixes; they should go to the maintainer of the subsystem in question.
+
+For example, in a documentation build I grabbed a pair of warnings nearly
+at random::
+
+ ./drivers/devfreq/devfreq.c:1818: warning: bad line:
+ - Resource-managed devfreq_register_notifier()
+ ./drivers/devfreq/devfreq.c:1854: warning: bad line:
+ - Resource-managed devfreq_unregister_notifier()
+
+(The lines were split for readability).
+
+A quick look at the source file named above turned up a couple of kerneldoc
+comments that look like this::
+
+ /**
+ * devm_devfreq_register_notifier()
+ - Resource-managed devfreq_register_notifier()
+ * @dev: The devfreq user device. (parent of devfreq)
+ * @devfreq: The devfreq object.
+ * @nb: The notifier block to be unregistered.
+ * @list: DEVFREQ_TRANSITION_NOTIFIER.
+ */
+
+The problem is the missing "*", which confuses the build system's
+simplistic idea of what C comment blocks look like. This problem had been
+present since that comment was added in 2016 — a full four years. Fixing
+it was a matter of adding the missing asterisks. A quick look at the
+history for that file showed what the normal format for subject lines is,
+and ``scripts/get_maintainer.pl`` told me who should receive it. The
+resulting patch looked like this::
+
+ [PATCH] PM / devfreq: Fix two malformed kerneldoc comments
+
+ Two kerneldoc comments in devfreq.c fail to adhere to the required format,
+ resulting in these doc-build warnings:
+
+ ./drivers/devfreq/devfreq.c:1818: warning: bad line:
+ - Resource-managed devfreq_register_notifier()
+ ./drivers/devfreq/devfreq.c:1854: warning: bad line:
+ - Resource-managed devfreq_unregister_notifier()
+
+ Add a couple of missing asterisks and make kerneldoc a little happier.
+
+ Signed-off-by: Jonathan Corbet <corbet@lwn.net>
+ ---
+ drivers/devfreq/devfreq.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+ diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
+ index 57f6944d65a6..00c9b80b3d33 100644
+ --- a/drivers/devfreq/devfreq.c
+ +++ b/drivers/devfreq/devfreq.c
+ @@ -1814,7 +1814,7 @@ static void devm_devfreq_notifier_release(struct device *dev, void *res)
+
+ /**
+ * devm_devfreq_register_notifier()
+ - - Resource-managed devfreq_register_notifier()
+ + * - Resource-managed devfreq_register_notifier()
+ * @dev: The devfreq user device. (parent of devfreq)
+ * @devfreq: The devfreq object.
+ * @nb: The notifier block to be unregistered.
+ @@ -1850,7 +1850,7 @@ EXPORT_SYMBOL(devm_devfreq_register_notifier);
+
+ /**
+ * devm_devfreq_unregister_notifier()
+ - - Resource-managed devfreq_unregister_notifier()
+ + * - Resource-managed devfreq_unregister_notifier()
+ * @dev: The devfreq user device. (parent of devfreq)
+ * @devfreq: The devfreq object.
+ * @nb: The notifier block to be unregistered.
+ --
+ 2.24.1
+
+The entire process only took a few minutes. Of course, I then found that
+somebody else had fixed it in a separate tree, highlighting another lesson:
+always check linux-next to see if a problem has been fixed before you dig
+into it.
+
+Other fixes will take longer, especially those relating to structure
+members or function parameters that lack documentation. In such cases, it
+is necessary to work out what the role of those members or parameters is
+and describe them correctly. Overall, this task gets a little tedious at
+times, but it's highly important. If we can actually eliminate warnings
+from the documentation build, then we can start expecting developers to
+avoid adding new ones.
+
+Languishing kerneldoc comments
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Developers are encouraged to write kerneldoc comments for their code, but
+many of those comments are never pulled into the docs build. That makes
+this information harder to find and, for example, makes Sphinx unable to
+generate links to that documentation. Adding ``kernel-doc`` directives to
+the documentation to bring those comments in can help the community derive
+the full value of the work that has gone into creating them.
+
+The ``scripts/find-unused-docs.sh`` tool can be used to find these
+overlooked comments.
+
+Note that the most value comes from pulling in the documentation for
+exported functions and data structures. Many subsystems also have
+kerneldoc comments for internal use; those should not be pulled into the
+documentation build unless they are placed in a document that is
+specifically aimed at developers working within the relevant subsystem.
+
+
+Typo fixes
+~~~~~~~~~~
+
+Fixing typographical or formatting errors in the documentation is a quick
+way to figure out how to create and send patches, and it is a useful
+service. I am always willing to accept such patches. That said, once you
+have fixed a few, please consider moving on to more advanced tasks, leaving
+some typos for the next beginner to address.
+
+Please note that some things are *not* typos and should not be "fixed":
+
+ - Both American and British English spellings are allowed within the
+ kernel documentation. There is no need to fix one by replacing it with
+ the other.
+
+ - The question of whether a period should be followed by one or two spaces
+ is not to be debated in the context of kernel documentation. Other
+ areas of rational disagreement, such as the "Oxford comma", are also
+ off-topic here.
+
+As with any patch to any project, please consider whether your change is
+really making things better.
+
+Ancient documentation
+~~~~~~~~~~~~~~~~~~~~~
+
+Some kernel documentation is current, maintained, and useful. Some
+documentation is ... not. Dusty, old, and inaccurate documentation can
+mislead readers and casts doubt on our documentation as a whole. Anything
+that can be done to address such problems is more than welcome.
+
+Whenever you are working with a document, please consider whether it is
+current, whether it needs updating, or whether it should perhaps be removed
+altogether. There are a number of warning signs that you can pay attention
+to here:
+
+ - References to 2.x kernels
+ - Pointers to SourceForge repositories
+ - Nothing but typo fixes in the history for several years
+ - Discussion of pre-Git workflows
+
+The best thing to do, of course, would be to bring the documentation
+current, adding whatever information is needed. Such work often requires
+the cooperation of developers familiar with the subsystem in question, of
+course. Developers are often more than willing to cooperate with people
+working to improve the documentation when asked nicely, and when their
+answers are listened to and acted upon.
+
+Some documentation is beyond hope; we occasionally find documents that
+refer to code that was removed from the kernel long ago, for example.
+There is surprising resistance to removing obsolete documentation, but we
+should do that anyway. Extra cruft in our documentation helps nobody.
+
+In cases where there is perhaps some useful information in a badly outdated
+document, and you are unable to update it, the best thing to do may be to
+add a warning at the beginning. The following text is recommended::
+
+ .. warning ::
+ This document is outdated and in need of attention. Please use
+ this information with caution, and please consider sending patches
+ to update it.
+
+That way, at least our long-suffering readers have been warned that the
+document may lead them astray.
+
+Documentation coherency
+~~~~~~~~~~~~~~~~~~~~~~~
+
+The old-timers around here will remember the Linux books that showed up on
+the shelves in the 1990s. They were simply collections of documentation
+files scrounged from various locations on the net. The books have (mostly)
+improved since then, but the kernel's documentation is still mostly built
+on that model. It is thousands of files, almost each of which was written
+in isolation from all of the others. We don't have a coherent body of
+kernel documentation; we have thousands of individual documents.
+
+We have been trying to improve the situation through the creation of
+a set of "books" that group documentation for specific readers. These
+include:
+
+ - :doc:`../admin-guide/index`
+ - :doc:`../core-api/index`
+ - :doc:`../driver-api/index`
+ - :doc:`../userspace-api/index`
+
+As well as this book on documentation itself.
+
+Moving documents into the appropriate books is an important task and needs
+to continue. There are a couple of challenges associated with this work,
+though. Moving documentation files creates short-term pain for the people
+who work with those files; they are understandably unenthusiastic about
+such changes. Usually the case can be made to move a document once; we
+really don't want to keep shifting them around, though.
+
+Even when all documents are in the right place, though, we have only
+managed to turn a big pile into a group of smaller piles. The work of
+trying to knit all of those documents together into a single whole has not
+yet begun. If you have bright ideas on how we could proceed on that front,
+we would be more than happy to hear them.
+
+Stylesheet improvements
+~~~~~~~~~~~~~~~~~~~~~~~
+
+With the adoption of Sphinx we have much nicer-looking HTML output than we
+once did. But it could still use a lot of improvement; Donald Knuth and
+Edward Tufte would be unimpressed. That requires tweaking our stylesheets
+to create more typographically sound, accessible, and readable output.
+
+Be warned: if you take on this task you are heading into classic bikeshed
+territory. Expect a lot of opinions and discussion for even relatively
+obvious changes. That is, alas, the nature of the world we live in.
+
+Non-LaTeX PDF build
+~~~~~~~~~~~~~~~~~~~
+
+This is a decidedly nontrivial task for somebody with a lot of time and
+Python skills. The Sphinx toolchain is relatively small and well
+contained; it is easy to add to a development system. But building PDF or
+EPUB output requires installing LaTeX, which is anything but small or well
+contained. That would be a nice thing to eliminate.
+
+The original hope had been to use the rst2pdf tool (https://rst2pdf.org/)
+for PDF generation, but it turned out to not be up to the task.
+Development work on rst2pdf seems to have picked up again in recent times,
+though, which is a hopeful sign. If a suitably motivated developer were to
+work with that project to make rst2pdf work with the kernel documentation
+build, the world would be eternally grateful.
+
+Write more documentation
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+Naturally, there are massive parts of the kernel that are severely
+underdocumented. If you have the knowledge to document a specific kernel
+subsystem and the desire to do so, please do not hesitate to do some
+writing and contribute the result to the kernel. Untold numbers of kernel
+developers and users will thank you.
diff --git a/Documentation/doc-guide/index.rst b/Documentation/doc-guide/index.rst
index 603f3ff55d5a..7c7d97784626 100644
--- a/Documentation/doc-guide/index.rst
+++ b/Documentation/doc-guide/index.rst
@@ -10,6 +10,8 @@ How to write kernel documentation
sphinx
kernel-doc
parse-headers
+ contributing
+ maintainer-profile
.. only:: subproject and html
diff --git a/Documentation/doc-guide/maintainer-profile.rst b/Documentation/doc-guide/maintainer-profile.rst
new file mode 100644
index 000000000000..aee2f508cc89
--- /dev/null
+++ b/Documentation/doc-guide/maintainer-profile.rst
@@ -0,0 +1,44 @@
+.. SPDX-License-Identifier: GPL-2.0
+Documentation subsystem maintainer entry profile
+================================================
+
+The documentation "subsystem" is the central coordinating point for the
+kernel's documentation and associated infrastructure. It covers the
+hierarchy under Documentation/ (with the exception of
+Documentation/device-tree), various utilities under scripts/ and, at least
+some of the time, LICENSES/.
+
+It's worth noting, though, that the boundaries of this subsystem are rather
+fuzzier than normal. Many other subsystem maintainers like to keep control
+of portions of Documentation/, and many more freely apply changes there
+when it is convenient. Beyond that, much of the kernel's documentation is
+found in the source as kerneldoc comments; those are usually (but not
+always) maintained by the relevant subsystem maintainer.
+
+The mailing list for documentation is linux-doc@vger.kernel.org. Patches
+should be made against the docs-next tree whenever possible.
+
+Submit checklist addendum
+-------------------------
+
+When making documentation changes, you should actually build the
+documentation and ensure that no new errors or warnings have been
+introduced. Generating HTML documents and looking at the result will help
+to avoid unsightly misunderstandings about how things will be rendered.
+
+Key cycle dates
+---------------
+
+Patches can be sent anytime, but response will be slower than usual during
+the merge window. The docs tree tends to close late before the merge
+window opens, since the risk of regressions from documentation patches is
+low.
+
+Review cadence
+--------------
+
+I am the sole maintainer for the documentation subsystem, and I am doing
+the work on my own time, so the response to patches will occasionally be
+slow. I try to always send out a notification when a patch is merged (or
+when I decide that one cannot be). Do not hesitate to send a ping if you
+have not heard back within a week of sending a patch.
diff --git a/Documentation/driver-api/dmaengine/client.rst b/Documentation/driver-api/dmaengine/client.rst
index 45953f171500..a9a7a3c84c63 100644
--- a/Documentation/driver-api/dmaengine/client.rst
+++ b/Documentation/driver-api/dmaengine/client.rst
@@ -151,6 +151,93 @@ The details of these operations are:
Note that callbacks will always be invoked from the DMA
engines tasklet, never from interrupt context.
+ Optional: per descriptor metadata
+ ---------------------------------
+ DMAengine provides two ways for metadata support.
+
+ DESC_METADATA_CLIENT
+
+ The metadata buffer is allocated/provided by the client driver and it is
+ attached to the descriptor.
+
+ .. code-block:: c
+
+ int dmaengine_desc_attach_metadata(struct dma_async_tx_descriptor *desc,
+ void *data, size_t len);
+
+ DESC_METADATA_ENGINE
+
+ The metadata buffer is allocated/managed by the DMA driver. The client
+ driver can ask for the pointer, maximum size and the currently used size of
+ the metadata and can directly update or read it.
+
+ Becasue the DMA driver manages the memory area containing the metadata,
+ clients must make sure that they do not try to access or get the pointer
+ after their transfer completion callback has run for the descriptor.
+ If no completion callback has been defined for the transfer, then the
+ metadata must not be accessed after issue_pending.
+ In other words: if the aim is to read back metadata after the transfer is
+ completed, then the client must use completion callback.
+
+ .. code-block:: c
+
+ void *dmaengine_desc_get_metadata_ptr(struct dma_async_tx_descriptor *desc,
+ size_t *payload_len, size_t *max_len);
+
+ int dmaengine_desc_set_metadata_len(struct dma_async_tx_descriptor *desc,
+ size_t payload_len);
+
+ Client drivers can query if a given mode is supported with:
+
+ .. code-block:: c
+
+ bool dmaengine_is_metadata_mode_supported(struct dma_chan *chan,
+ enum dma_desc_metadata_mode mode);
+
+ Depending on the used mode client drivers must follow different flow.
+
+ DESC_METADATA_CLIENT
+
+ - DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
+ 1. prepare the descriptor (dmaengine_prep_*)
+ construct the metadata in the client's buffer
+ 2. use dmaengine_desc_attach_metadata() to attach the buffer to the
+ descriptor
+ 3. submit the transfer
+ - DMA_DEV_TO_MEM:
+ 1. prepare the descriptor (dmaengine_prep_*)
+ 2. use dmaengine_desc_attach_metadata() to attach the buffer to the
+ descriptor
+ 3. submit the transfer
+ 4. when the transfer is completed, the metadata should be available in the
+ attached buffer
+
+ DESC_METADATA_ENGINE
+
+ - DMA_MEM_TO_DEV / DEV_MEM_TO_MEM:
+ 1. prepare the descriptor (dmaengine_prep_*)
+ 2. use dmaengine_desc_get_metadata_ptr() to get the pointer to the
+ engine's metadata area
+ 3. update the metadata at the pointer
+ 4. use dmaengine_desc_set_metadata_len() to tell the DMA engine the
+ amount of data the client has placed into the metadata buffer
+ 5. submit the transfer
+ - DMA_DEV_TO_MEM:
+ 1. prepare the descriptor (dmaengine_prep_*)
+ 2. submit the transfer
+ 3. on transfer completion, use dmaengine_desc_get_metadata_ptr() to get
+ the pointer to the engine's metadata area
+ 4. read out the metadata from the pointer
+
+ .. note::
+
+ When DESC_METADATA_ENGINE mode is used the metadata area for the descriptor
+ is no longer valid after the transfer has been completed (valid up to the
+ point when the completion callback returns if used).
+
+ Mixed use of DESC_METADATA_CLIENT / DESC_METADATA_ENGINE is not allowed,
+ client drivers must use either of the modes per descriptor.
+
4. Submit the transaction
Once the descriptor has been prepared and the callback information
diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst
index dfc4486b5743..790a15089f1f 100644
--- a/Documentation/driver-api/dmaengine/provider.rst
+++ b/Documentation/driver-api/dmaengine/provider.rst
@@ -247,6 +247,54 @@ after each transfer. In case of a ring buffer, they may loop
(DMA_CYCLIC). Addresses pointing to a device's register (e.g. a FIFO)
are typically fixed.
+Per descriptor metadata support
+-------------------------------
+Some data movement architecture (DMA controller and peripherals) uses metadata
+associated with a transaction. The DMA controller role is to transfer the
+payload and the metadata alongside.
+The metadata itself is not used by the DMA engine itself, but it contains
+parameters, keys, vectors, etc for peripheral or from the peripheral.
+
+The DMAengine framework provides a generic ways to facilitate the metadata for
+descriptors. Depending on the architecture the DMA driver can implement either
+or both of the methods and it is up to the client driver to choose which one
+to use.
+
+- DESC_METADATA_CLIENT
+
+ The metadata buffer is allocated/provided by the client driver and it is
+ attached (via the dmaengine_desc_attach_metadata() helper to the descriptor.
+
+ From the DMA driver the following is expected for this mode:
+ - DMA_MEM_TO_DEV / DEV_MEM_TO_MEM
+ The data from the provided metadata buffer should be prepared for the DMA
+ controller to be sent alongside of the payload data. Either by copying to a
+ hardware descriptor, or highly coupled packet.
+ - DMA_DEV_TO_MEM
+ On transfer completion the DMA driver must copy the metadata to the client
+ provided metadata buffer before notifying the client about the completion.
+ After the transfer completion, DMA drivers must not touch the metadata
+ buffer provided by the client.
+
+- DESC_METADATA_ENGINE
+
+ The metadata buffer is allocated/managed by the DMA driver. The client driver
+ can ask for the pointer, maximum size and the currently used size of the
+ metadata and can directly update or read it. dmaengine_desc_get_metadata_ptr()
+ and dmaengine_desc_set_metadata_len() is provided as helper functions.
+
+ From the DMA driver the following is expected for this mode:
+ - get_metadata_ptr
+ Should return a pointer for the metadata buffer, the maximum size of the
+ metadata buffer and the currently used / valid (if any) bytes in the buffer.
+ - set_metadata_len
+ It is called by the clients after it have placed the metadata to the buffer
+ to let the DMA driver know the number of valid bytes provided.
+
+ Note: since the client will ask for the metadata pointer in the completion
+ callback (in DMA_DEV_TO_MEM case) the DMA driver must ensure that the
+ descriptor is not freed up prior the callback is called.
+
Device operations
-----------------
diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 13046fcf0a5d..46c13780994c 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -267,6 +267,8 @@ DRM
GPIO
devm_gpiod_get()
+ devm_gpiod_get_array()
+ devm_gpiod_get_array_optional()
devm_gpiod_get_index()
devm_gpiod_get_index_optional()
devm_gpiod_get_optional()
@@ -313,7 +315,6 @@ IOMAP
devm_ioport_map()
devm_ioport_unmap()
devm_ioremap()
- devm_ioremap_nocache()
devm_ioremap_uc()
devm_ioremap_wc()
devm_ioremap_resource() : checks resource, requests memory region, ioremaps
diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst
index 2ff743105927..871922529332 100644
--- a/Documentation/driver-api/gpio/driver.rst
+++ b/Documentation/driver-api/gpio/driver.rst
@@ -507,11 +507,6 @@ available but we try to move away from this:
cascaded irq has to be handled by a threaded interrupt handler.
Apart from that it works exactly like the chained irqchip.
-- DEPRECATED: gpiochip_set_chained_irqchip(): sets up a chained cascaded irq
- handler for a gpio_chip from a parent IRQ and passes the struct gpio_chip*
- as handler data. Notice that we pass is as the handler data, since the
- irqchip data is likely used by the parent irqchip.
-
- gpiochip_set_nested_irqchip(): sets up a nested cascaded irq handler for a
gpio_chip from a parent IRQ. As the parent IRQ has usually been
explicitly requested by the driver, this does very little more than
diff --git a/Documentation/driver-api/gpio/drivers-on-gpio.rst b/Documentation/driver-api/gpio/drivers-on-gpio.rst
index f3a189320e11..820b403d50f6 100644
--- a/Documentation/driver-api/gpio/drivers-on-gpio.rst
+++ b/Documentation/driver-api/gpio/drivers-on-gpio.rst
@@ -95,7 +95,7 @@ to emulate MCTRL (modem control) signals CTS/RTS by using two GPIO lines. The
MTD NOR flash has add-ons for extra GPIO lines too, though the address bus is
usually connected directly to the flash.
-Use those instead of talking directly to the GPIOs using sysfs; they integrate
-with kernel frameworks better than your userspace code could. Needless to say,
-just using the appropriate kernel drivers will simplify and speed up your
-embedded hacking in particular by providing ready-made components.
+Use those instead of talking directly to the GPIOs from userspace; they
+integrate with kernel frameworks better than your userspace code could.
+Needless to say, just using the appropriate kernel drivers will simplify and
+speed up your embedded hacking in particular by providing ready-made components.
diff --git a/Documentation/driver-api/gpio/index.rst b/Documentation/driver-api/gpio/index.rst
index 5b61032aa4ea..1d48fe248f05 100644
--- a/Documentation/driver-api/gpio/index.rst
+++ b/Documentation/driver-api/gpio/index.rst
@@ -8,6 +8,7 @@ Contents:
:maxdepth: 2
intro
+ using-gpio
driver
consumer
board
diff --git a/Documentation/driver-api/gpio/using-gpio.rst b/Documentation/driver-api/gpio/using-gpio.rst
new file mode 100644
index 000000000000..dda069444032
--- /dev/null
+++ b/Documentation/driver-api/gpio/using-gpio.rst
@@ -0,0 +1,50 @@
+=========================
+Using GPIO Lines in Linux
+=========================
+
+The Linux kernel exists to abstract and present hardware to users. GPIO lines
+as such are normally not user facing abstractions. The most obvious, natural
+and preferred way to use GPIO lines is to let kernel hardware drivers deal
+with them.
+
+For examples of already existing generic drivers that will also be good
+examples for any other kernel drivers you want to author, refer to
+:doc:`drivers-on-gpio`
+
+For any kind of mass produced system you want to support, such as servers,
+laptops, phones, tablets, routers, and any consumer or office or business goods
+using appropriate kernel drivers is paramount. Submit your code for inclusion
+in the upstream Linux kernel when you feel it is mature enough and you will get
+help to refine it, see :doc:`../../process/submitting-patches`.
+
+In Linux GPIO lines also have a userspace ABI.
+
+The userspace ABI is intended for one-off deployments. Examples are prototypes,
+factory lines, maker community projects, workshop specimen, production tools,
+industrial automation, PLC-type use cases, door controllers, in short a piece
+of specialized equipment that is not produced by the numbers, requiring
+operators to have a deep knowledge of the equipment and knows about the
+software-hardware interface to be set up. They should not have a natural fit
+to any existing kernel subsystem and not be a good fit for an operating system,
+because of not being reusable or abstract enough, or involving a lot of non
+computer hardware related policy.
+
+Applications that have a good reason to use the industrial I/O (IIO) subsystem
+from userspace will likely be a good fit for using GPIO lines from userspace as
+well.
+
+Do not under any circumstances abuse the GPIO userspace ABI to cut corners in
+any product development projects. If you use it for prototyping, then do not
+productify the prototype: rewrite it using proper kernel drivers. Do not under
+any circumstances deploy any uniform products using GPIO from userspace.
+
+The userspace ABI is a character device for each GPIO hardware unit (GPIO chip).
+These devices will appear on the system as ``/dev/gpiochip0`` thru
+``/dev/gpiochipN``. Examples of how to directly use the userspace ABI can be
+found in the kernel tree ``tools/gpio`` subdirectory.
+
+For structured and managed applications, we recommend that you make use of the
+libgpiod_ library. This provides helper abstractions, command line utlities
+and arbitration for multiple simultaneous consumers on the same GPIO chip.
+
+.. _libgpiod: https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/
diff --git a/Documentation/driver-api/interconnect.rst b/Documentation/driver-api/interconnect.rst
index cdeb5825f314..5ed4f57a6bac 100644
--- a/Documentation/driver-api/interconnect.rst
+++ b/Documentation/driver-api/interconnect.rst
@@ -91,3 +91,25 @@ Interconnect consumers are the clients which use the interconnect APIs to
get paths between endpoints and set their bandwidth/latency/QoS requirements
for these interconnect paths. These interfaces are not currently
documented.
+
+Interconnect debugfs interfaces
+-------------------------------
+
+Like several other subsystems interconnect will create some files for debugging
+and introspection. Files in debugfs are not considered ABI so application
+software shouldn't rely on format details change between kernel versions.
+
+``/sys/kernel/debug/interconnect/interconnect_summary``:
+
+Show all interconnect nodes in the system with their aggregated bandwidth
+request. Indented under each node show bandwidth requests from each device.
+
+``/sys/kernel/debug/interconnect/interconnect_graph``:
+
+Show the interconnect graph in the graphviz dot format. It shows all
+interconnect nodes and links in the system and groups together nodes from the
+same provider as subgraphs. The format is human-readable and can also be piped
+through dot to generate diagrams in many graphical formats::
+
+ $ cat /sys/kernel/debug/interconnect/interconnect_graph | \
+ dot -Tsvg > interconnect_graph.svg
diff --git a/Documentation/driver-api/thermal/cpu-idle-cooling.rst b/Documentation/driver-api/thermal/cpu-idle-cooling.rst
new file mode 100644
index 000000000000..e4f0859486c7
--- /dev/null
+++ b/Documentation/driver-api/thermal/cpu-idle-cooling.rst
@@ -0,0 +1,189 @@
+
+Situation:
+----------
+
+Under certain circumstances a SoC can reach a critical temperature
+limit and is unable to stabilize the temperature around a temperature
+control. When the SoC has to stabilize the temperature, the kernel can
+act on a cooling device to mitigate the dissipated power. When the
+critical temperature is reached, a decision must be taken to reduce
+the temperature, that, in turn impacts performance.
+
+Another situation is when the silicon temperature continues to
+increase even after the dynamic leakage is reduced to its minimum by
+clock gating the component. This runaway phenomenon can continue due
+to the static leakage. The only solution is to power down the
+component, thus dropping the dynamic and static leakage that will
+allow the component to cool down.
+
+Last but not least, the system can ask for a specific power budget but
+because of the OPP density, we can only choose an OPP with a power
+budget lower than the requested one and under-utilize the CPU, thus
+losing performance. In other words, one OPP under-utilizes the CPU
+with a power less than the requested power budget and the next OPP
+exceeds the power budget. An intermediate OPP could have been used if
+it were present.
+
+Solutions:
+----------
+
+If we can remove the static and the dynamic leakage for a specific
+duration in a controlled period, the SoC temperature will
+decrease. Acting on the idle state duration or the idle cycle
+injection period, we can mitigate the temperature by modulating the
+power budget.
+
+The Operating Performance Point (OPP) density has a great influence on
+the control precision of cpufreq, however different vendors have a
+plethora of OPP density, and some have large power gap between OPPs,
+that will result in loss of performance during thermal control and
+loss of power in other scenarios.
+
+At a specific OPP, we can assume that injecting idle cycle on all CPUs
+belong to the same cluster, with a duration greater than the cluster
+idle state target residency, we lead to dropping the static and the
+dynamic leakage for this period (modulo the energy needed to enter
+this state). So the sustainable power with idle cycles has a linear
+relation with the OPP’s sustainable power and can be computed with a
+coefficient similar to:
+
+ Power(IdleCycle) = Coef x Power(OPP)
+
+Idle Injection:
+---------------
+
+The base concept of the idle injection is to force the CPU to go to an
+idle state for a specified time each control cycle, it provides
+another way to control CPU power and heat in addition to
+cpufreq. Ideally, if all CPUs belonging to the same cluster, inject
+their idle cycles synchronously, the cluster can reach its power down
+state with a minimum power consumption and reduce the static leakage
+to almost zero. However, these idle cycles injection will add extra
+latencies as the CPUs will have to wakeup from a deep sleep state.
+
+We use a fixed duration of idle injection that gives an acceptable
+performance penalty and a fixed latency. Mitigation can be increased
+or decreased by modulating the duty cycle of the idle injection.
+
+ ^
+ |
+ |
+ |------- -------
+ |_______|_______________________|_______|___________
+
+ <------>
+ idle <---------------------->
+ running
+
+ <----------------------------->
+ duty cycle 25%
+
+
+The implementation of the cooling device bases the number of states on
+the duty cycle percentage. When no mitigation is happening the cooling
+device state is zero, meaning the duty cycle is 0%.
+
+When the mitigation begins, depending on the governor's policy, a
+starting state is selected. With a fixed idle duration and the duty
+cycle (aka the cooling device state), the running duration can be
+computed.
+
+The governor will change the cooling device state thus the duty cycle
+and this variation will modulate the cooling effect.
+
+ ^
+ |
+ |
+ |------- -------
+ |_______|_______________|_______|___________
+
+ <------>
+ idle <-------------->
+ running
+
+ <----------------------------->
+ duty cycle 33%
+
+
+ ^
+ |
+ |
+ |------- -------
+ |_______|_______|_______|___________
+
+ <------>
+ idle <------>
+ running
+
+ <------------->
+ duty cycle 50%
+
+The idle injection duration value must comply with the constraints:
+
+- It is less than or equal to the latency we tolerate when the
+ mitigation begins. It is platform dependent and will depend on the
+ user experience, reactivity vs performance trade off we want. This
+ value should be specified.
+
+- It is greater than the idle state’s target residency we want to go
+ for thermal mitigation, otherwise we end up consuming more energy.
+
+Power considerations
+--------------------
+
+When we reach the thermal trip point, we have to sustain a specified
+power for a specific temperature but at this time we consume:
+
+ Power = Capacitance x Voltage^2 x Frequency x Utilisation
+
+... which is more than the sustainable power (or there is something
+wrong in the system setup). The ‘Capacitance’ and ‘Utilisation’ are a
+fixed value, ‘Voltage’ and the ‘Frequency’ are fixed artificially
+because we don’t want to change the OPP. We can group the
+‘Capacitance’ and the ‘Utilisation’ into a single term which is the
+‘Dynamic Power Coefficient (Cdyn)’ Simplifying the above, we have:
+
+ Pdyn = Cdyn x Voltage^2 x Frequency
+
+The power allocator governor will ask us somehow to reduce our power
+in order to target the sustainable power defined in the device
+tree. So with the idle injection mechanism, we want an average power
+(Ptarget) resulting in an amount of time running at full power on a
+specific OPP and idle another amount of time. That could be put in a
+equation:
+
+ P(opp)target = ((Trunning x (P(opp)running) + (Tidle x P(opp)idle)) /
+ (Trunning + Tidle)
+ ...
+
+ Tidle = Trunning x ((P(opp)running / P(opp)target) - 1)
+
+At this point if we know the running period for the CPU, that gives us
+the idle injection we need. Alternatively if we have the idle
+injection duration, we can compute the running duration with:
+
+ Trunning = Tidle / ((P(opp)running / P(opp)target) - 1)
+
+Practically, if the running power is less than the targeted power, we
+end up with a negative time value, so obviously the equation usage is
+bound to a power reduction, hence a higher OPP is needed to have the
+running power greater than the targeted power.
+
+However, in this demonstration we ignore three aspects:
+
+ * The static leakage is not defined here, we can introduce it in the
+ equation but assuming it will be zero most of the time as it is
+ difficult to get the values from the SoC vendors
+
+ * The idle state wake up latency (or entry + exit latency) is not
+ taken into account, it must be added in the equation in order to
+ rigorously compute the idle injection
+
+ * The injected idle duration must be greater than the idle state
+ target residency, otherwise we end up consuming more energy and
+ potentially invert the mitigation effect
+
+So the final equation is:
+
+ Trunning = (Tidle - Twakeup ) x
+ (((P(opp)dyn + P(opp)static ) - P(opp)target) / P(opp)target )
diff --git a/Documentation/driver-api/thermal/exynos_thermal.rst b/Documentation/driver-api/thermal/exynos_thermal.rst
index 5bd556566c70..764df4ab584d 100644
--- a/Documentation/driver-api/thermal/exynos_thermal.rst
+++ b/Documentation/driver-api/thermal/exynos_thermal.rst
@@ -4,7 +4,7 @@ Kernel driver exynos_tmu
Supported chips:
-* ARM SAMSUNG EXYNOS4, EXYNOS5 series of SoC
+* ARM Samsung Exynos4, Exynos5 series of SoC
Datasheet: Not publicly available
@@ -14,7 +14,7 @@ Authors: Amit Daniel <amit.daniel@samsung.com>
TMU controller Description:
---------------------------
-This driver allows to read temperature inside SAMSUNG EXYNOS4/5 series of SoC.
+This driver allows to read temperature inside Samsung Exynos4/5 series of SoC.
The chip only exposes the measured 8-bit temperature code value
through a register.
@@ -43,7 +43,7 @@ The three equations are:
Trimming info for 85 degree Celsius (stored at TRIMINFO register)
Temperature code measured at 85 degree Celsius which is unchanged
-TMU(Thermal Management Unit) in EXYNOS4/5 generates interrupt
+TMU(Thermal Management Unit) in Exynos4/5 generates interrupt
when temperature exceeds pre-defined levels.
The maximum number of configurable threshold is five.
The threshold levels are defined as follows::
@@ -67,7 +67,7 @@ TMU driver description:
The exynos thermal driver is structured as::
Kernel Core thermal framework
- (thermal_core.c, step_wise.c, cpu_cooling.c)
+ (thermal_core.c, step_wise.c, cpufreq_cooling.c)
^
|
|
diff --git a/Documentation/fb/fbcon.rst b/Documentation/fb/fbcon.rst
index ebca41785abe..e57a3d1d085a 100644
--- a/Documentation/fb/fbcon.rst
+++ b/Documentation/fb/fbcon.rst
@@ -127,7 +127,7 @@ C. Boot options
is typically located on the same video card. Thus, the consoles that
are controlled by the VGA console will be garbled.
-4. fbcon=rotate:<n>
+5. fbcon=rotate:<n>
This option changes the orientation angle of the console display. The
value 'n' accepts the following:
@@ -152,21 +152,21 @@ C. Boot options
Actually, the underlying fb driver is totally ignorant of console
rotation.
-5. fbcon=margin:<color>
+6. fbcon=margin:<color>
This option specifies the color of the margins. The margins are the
leftover area at the right and the bottom of the screen that are not
used by text. By default, this area will be black. The 'color' value
is an integer number that depends on the framebuffer driver being used.
-6. fbcon=nodefer
+7. fbcon=nodefer
If the kernel is compiled with deferred fbcon takeover support, normally
the framebuffer contents, left in place by the firmware/bootloader, will
be preserved until there actually is some text is output to the console.
This option causes fbcon to bind immediately to the fbdev device.
-7. fbcon=logo-pos:<location>
+8. fbcon=logo-pos:<location>
The only possible 'location' is 'center' (without quotes), and when
given, the bootup logo is moved from the default top-left corner
@@ -174,6 +174,11 @@ C. Boot options
displayed due to multiple CPUs, the collected line of logos is moved
as a whole.
+9. fbcon=logo-count:<n>
+
+ The value 'n' overrides the number of bootup logos. 0 disables the
+ logo, and -1 gives the default which is the number of online CPUs.
+
C. Attaching, Detaching and Unloading
Before going on to how to attach, detach and unload the framebuffer console, an
diff --git a/Documentation/fb/modedb.rst b/Documentation/fb/modedb.rst
index 9c4e3fd39e6d..624d08fd2856 100644
--- a/Documentation/fb/modedb.rst
+++ b/Documentation/fb/modedb.rst
@@ -65,6 +65,9 @@ Valid options are::
- reflect_y (boolean): Perform an axial symmetry on the Y axis
- rotate (integer): Rotate the initial framebuffer by x
degrees. Valid values are 0, 90, 180 and 270.
+ - panel_orientation, one of "normal", "upside_down", "left_side_up", or
+ "right_side_up". For KMS drivers only, this sets the "panel orientation"
+ property on the kms connector as hint for kms users.
-----------------------------------------------------------------------------
diff --git a/Documentation/features/debug/gcov-profile-all/arch-support.txt b/Documentation/features/debug/gcov-profile-all/arch-support.txt
index 059d58a549c7..6fb2b0671994 100644
--- a/Documentation/features/debug/gcov-profile-all/arch-support.txt
+++ b/Documentation/features/debug/gcov-profile-all/arch-support.txt
@@ -23,7 +23,7 @@
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
- | riscv: | TODO |
+ | riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
diff --git a/Documentation/filesystems/adfs.txt b/Documentation/filesystems/adfs.txt
index 5949766353f7..0baa8e8c1fc1 100644
--- a/Documentation/filesystems/adfs.txt
+++ b/Documentation/filesystems/adfs.txt
@@ -1,3 +1,27 @@
+Filesystems supported by ADFS
+-----------------------------
+
+The ADFS module supports the following Filecore formats which have:
+
+- new maps
+- new directories or big directories
+
+In terms of the named formats, this means we support:
+
+- E and E+, with or without boot block
+- F and F+
+
+We fully support reading files from these filesystems, and writing to
+existing files within their existing allocation. Essentially, we do
+not support changing any of the filesystem metadata.
+
+This is intended to support loopback mounted Linux native filesystems
+on a RISC OS Filecore filesystem, but will allow the data within files
+to be changed.
+
+If write support (ADFS_FS_RW) is configured, we allow rudimentary
+directory updates, specifically updating the access mode and timestamp.
+
Mount options for ADFS
----------------------
diff --git a/Documentation/filesystems/automount-support.txt b/Documentation/filesystems/automount-support.txt
index b0afd3d55eaf..7d9f82607562 100644
--- a/Documentation/filesystems/automount-support.txt
+++ b/Documentation/filesystems/automount-support.txt
@@ -9,7 +9,7 @@ also be requested by userspace.
IN-KERNEL AUTOMOUNTING
======================
-See section "Mount Traps" of Documentation/filesystems/autofs.txt
+See section "Mount Traps" of Documentation/filesystems/autofs.rst
Then from userspace, you can just do something like:
diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 68c2bc8275cf..bd9932344804 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -234,8 +234,8 @@ HKDF is more flexible, is nonreversible, and evenly distributes
entropy from the master key. HKDF is also standardized and widely
used by other software, whereas the AES-128-ECB based KDF is ad-hoc.
-Per-file keys
--------------
+Per-file encryption keys
+------------------------
Since each master key can protect many files, it is necessary to
"tweak" the encryption of each file so that the same plaintext in two
@@ -268,9 +268,9 @@ is greater than that of an AES-256-XTS key.
Therefore, to improve performance and save memory, for Adiantum a
"direct key" configuration is supported. When the user has enabled
this by setting FSCRYPT_POLICY_FLAG_DIRECT_KEY in the fscrypt policy,
-per-file keys are not used. Instead, whenever any data (contents or
-filenames) is encrypted, the file's 16-byte nonce is included in the
-IV. Moreover:
+per-file encryption keys are not used. Instead, whenever any data
+(contents or filenames) is encrypted, the file's 16-byte nonce is
+included in the IV. Moreover:
- For v1 encryption policies, the encryption is done directly with the
master key. Because of this, users **must not** use the same master
@@ -302,6 +302,16 @@ For master keys used for v2 encryption policies, a unique 16-byte "key
identifier" is also derived using the KDF. This value is stored in
the clear, since it is needed to reliably identify the key itself.
+Dirhash keys
+------------
+
+For directories that are indexed using a secret-keyed dirhash over the
+plaintext filenames, the KDF is also used to derive a 128-bit
+SipHash-2-4 key per directory in order to hash filenames. This works
+just like deriving a per-file encryption key, except that a different
+KDF context is used. Currently, only casefolded ("case-insensitive")
+encrypted directories use this style of hashing.
+
Encryption modes and usage
==========================
@@ -325,11 +335,11 @@ used.
Adiantum is a (primarily) stream cipher-based mode that is fast even
on CPUs without dedicated crypto instructions. It's also a true
wide-block mode, unlike XTS. It can also eliminate the need to derive
-per-file keys. However, it depends on the security of two primitives,
-XChaCha12 and AES-256, rather than just one. See the paper
-"Adiantum: length-preserving encryption for entry-level processors"
-(https://eprint.iacr.org/2018/720.pdf) for more details. To use
-Adiantum, CONFIG_CRYPTO_ADIANTUM must be enabled. Also, fast
+per-file encryption keys. However, it depends on the security of two
+primitives, XChaCha12 and AES-256, rather than just one. See the
+paper "Adiantum: length-preserving encryption for entry-level
+processors" (https://eprint.iacr.org/2018/720.pdf) for more details.
+To use Adiantum, CONFIG_CRYPTO_ADIANTUM must be enabled. Also, fast
implementations of ChaCha and NHPoly1305 should be enabled, e.g.
CONFIG_CRYPTO_CHACHA20_NEON and CONFIG_CRYPTO_NHPOLY1305_NEON for ARM.
@@ -513,7 +523,9 @@ FS_IOC_SET_ENCRYPTION_POLICY can fail with the following errors:
- ``EEXIST``: the file is already encrypted with an encryption policy
different from the one specified
- ``EINVAL``: an invalid encryption policy was specified (invalid
- version, mode(s), or flags; or reserved bits were set)
+ version, mode(s), or flags; or reserved bits were set); or a v1
+ encryption policy was specified but the directory has the casefold
+ flag enabled (casefolding is incompatible with v1 policies).
- ``ENOKEY``: a v2 encryption policy was specified, but the key with
the specified ``master_key_identifier`` has not been added, nor does
the process have the CAP_FOWNER capability in the initial user
@@ -638,7 +650,8 @@ follows::
struct fscrypt_add_key_arg {
struct fscrypt_key_specifier key_spec;
__u32 raw_size;
- __u32 __reserved[9];
+ __u32 key_id;
+ __u32 __reserved[8];
__u8 raw[];
};
@@ -655,6 +668,12 @@ follows::
} u;
};
+ struct fscrypt_provisioning_key_payload {
+ __u32 type;
+ __u32 __reserved;
+ __u8 raw[];
+ };
+
:c:type:`struct fscrypt_add_key_arg` must be zeroed, then initialized
as follows:
@@ -677,9 +696,26 @@ as follows:
``Documentation/security/keys/core.rst``).
- ``raw_size`` must be the size of the ``raw`` key provided, in bytes.
+ Alternatively, if ``key_id`` is nonzero, this field must be 0, since
+ in that case the size is implied by the specified Linux keyring key.
+
+- ``key_id`` is 0 if the raw key is given directly in the ``raw``
+ field. Otherwise ``key_id`` is the ID of a Linux keyring key of
+ type "fscrypt-provisioning" whose payload is a :c:type:`struct
+ fscrypt_provisioning_key_payload` whose ``raw`` field contains the
+ raw key and whose ``type`` field matches ``key_spec.type``. Since
+ ``raw`` is variable-length, the total size of this key's payload
+ must be ``sizeof(struct fscrypt_provisioning_key_payload)`` plus the
+ raw key size. The process must have Search permission on this key.
+
+ Most users should leave this 0 and specify the raw key directly.
+ The support for specifying a Linux keyring key is intended mainly to
+ allow re-adding keys after a filesystem is unmounted and re-mounted,
+ without having to store the raw keys in userspace memory.
- ``raw`` is a variable-length field which must contain the actual
- key, ``raw_size`` bytes long.
+ key, ``raw_size`` bytes long. Alternatively, if ``key_id`` is
+ nonzero, then this field is unused.
For v2 policy keys, the kernel keeps track of which user (identified
by effective user ID) added the key, and only allows the key to be
@@ -701,11 +737,16 @@ FS_IOC_ADD_ENCRYPTION_KEY can fail with the following errors:
- ``EACCES``: FSCRYPT_KEY_SPEC_TYPE_DESCRIPTOR was specified, but the
caller does not have the CAP_SYS_ADMIN capability in the initial
- user namespace
+ user namespace; or the raw key was specified by Linux key ID but the
+ process lacks Search permission on the key.
- ``EDQUOT``: the key quota for this user would be exceeded by adding
the key
- ``EINVAL``: invalid key size or key specifier type, or reserved bits
were set
+- ``EKEYREJECTED``: the raw key was specified by Linux key ID, but the
+ key has the wrong type
+- ``ENOKEY``: the raw key was specified by Linux key ID, but no key
+ exists with that ID
- ``ENOTTY``: this type of filesystem does not implement encryption
- ``EOPNOTSUPP``: the kernel was not configured with encryption
support for this filesystem, or the filesystem superblock has not
@@ -975,9 +1016,9 @@ astute users may notice some differences in behavior:
- Direct I/O is not supported on encrypted files. Attempts to use
direct I/O on such files will fall back to buffered I/O.
-- The fallocate operations FALLOC_FL_COLLAPSE_RANGE,
- FALLOC_FL_INSERT_RANGE, and FALLOC_FL_ZERO_RANGE are not supported
- on encrypted files and will fail with EOPNOTSUPP.
+- The fallocate operations FALLOC_FL_COLLAPSE_RANGE and
+ FALLOC_FL_INSERT_RANGE are not supported on encrypted files and will
+ fail with EOPNOTSUPP.
- Online defragmentation of encrypted files is not supported. The
EXT4_IOC_MOVE_EXT and F2FS_IOC_MOVE_RANGE ioctls will fail with
@@ -1108,8 +1149,8 @@ The context structs contain the same information as the corresponding
policy structs (see `Setting an encryption policy`_), except that the
context structs also contain a nonce. The nonce is randomly generated
by the kernel and is used as KDF input or as a tweak to cause
-different files to be encrypted differently; see `Per-file keys`_ and
-`DIRECT_KEY policies`_.
+different files to be encrypted differently; see `Per-file encryption
+keys`_ and `DIRECT_KEY policies`_.
Data path changes
-----------------
@@ -1161,7 +1202,7 @@ filesystem-specific hash(es) needed for directory lookups. This
allows the filesystem to still, with a high degree of confidence, map
the filename given in ->lookup() back to a particular directory entry
that was previously listed by readdir(). See :c:type:`struct
-fscrypt_digested_name` in the source for more details.
+fscrypt_nokey_name` in the source for more details.
Note that the precise way that filenames are presented to userspace
without the key is subject to change in the future. It is only meant
diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst
index ad6315a48d14..824a3ecbb0ca 100644
--- a/Documentation/filesystems/index.rst
+++ b/Documentation/filesystems/index.rst
@@ -47,4 +47,6 @@ Documentation for filesystem implementations.
:maxdepth: 2
autofs
+ overlayfs
virtiofs
+ vfat
diff --git a/Documentation/filesystems/nfs/nfs-rdma.txt b/Documentation/filesystems/nfs/nfs-rdma.txt
deleted file mode 100644
index 22dc0dd6889c..000000000000
--- a/Documentation/filesystems/nfs/nfs-rdma.txt
+++ /dev/null
@@ -1,274 +0,0 @@
-################################################################################
-# #
-# NFS/RDMA README #
-# #
-################################################################################
-
- Author: NetApp and Open Grid Computing
- Date: May 29, 2008
-
-Table of Contents
-~~~~~~~~~~~~~~~~~
- - Overview
- - Getting Help
- - Installation
- - Check RDMA and NFS Setup
- - NFS/RDMA Setup
-
-Overview
-~~~~~~~~
-
- This document describes how to install and setup the Linux NFS/RDMA client
- and server software.
-
- The NFS/RDMA client was first included in Linux 2.6.24. The NFS/RDMA server
- was first included in the following release, Linux 2.6.25.
-
- In our testing, we have obtained excellent performance results (full 10Gbit
- wire bandwidth at minimal client CPU) under many workloads. The code passes
- the full Connectathon test suite and operates over both Infiniband and iWARP
- RDMA adapters.
-
-Getting Help
-~~~~~~~~~~~~
-
- If you get stuck, you can ask questions on the
-
- nfs-rdma-devel@lists.sourceforge.net
-
- mailing list.
-
-Installation
-~~~~~~~~~~~~
-
- These instructions are a step by step guide to building a machine for
- use with NFS/RDMA.
-
- - Install an RDMA device
-
- Any device supported by the drivers in drivers/infiniband/hw is acceptable.
-
- Testing has been performed using several Mellanox-based IB cards, the
- Ammasso AMS1100 iWARP adapter, and the Chelsio cxgb3 iWARP adapter.
-
- - Install a Linux distribution and tools
-
- The first kernel release to contain both the NFS/RDMA client and server was
- Linux 2.6.25 Therefore, a distribution compatible with this and subsequent
- Linux kernel release should be installed.
-
- The procedures described in this document have been tested with
- distributions from Red Hat's Fedora Project (http://fedora.redhat.com/).
-
- - Install nfs-utils-1.1.2 or greater on the client
-
- An NFS/RDMA mount point can be obtained by using the mount.nfs command in
- nfs-utils-1.1.2 or greater (nfs-utils-1.1.1 was the first nfs-utils
- version with support for NFS/RDMA mounts, but for various reasons we
- recommend using nfs-utils-1.1.2 or greater). To see which version of
- mount.nfs you are using, type:
-
- $ /sbin/mount.nfs -V
-
- If the version is less than 1.1.2 or the command does not exist,
- you should install the latest version of nfs-utils.
-
- Download the latest package from:
-
- http://www.kernel.org/pub/linux/utils/nfs
-
- Uncompress the package and follow the installation instructions.
-
- If you will not need the idmapper and gssd executables (you do not need
- these to create an NFS/RDMA enabled mount command), the installation
- process can be simplified by disabling these features when running
- configure:
-
- $ ./configure --disable-gss --disable-nfsv4
-
- To build nfs-utils you will need the tcp_wrappers package installed. For
- more information on this see the package's README and INSTALL files.
-
- After building the nfs-utils package, there will be a mount.nfs binary in
- the utils/mount directory. This binary can be used to initiate NFS v2, v3,
- or v4 mounts. To initiate a v4 mount, the binary must be called
- mount.nfs4. The standard technique is to create a symlink called
- mount.nfs4 to mount.nfs.
-
- This mount.nfs binary should be installed at /sbin/mount.nfs as follows:
-
- $ sudo cp utils/mount/mount.nfs /sbin/mount.nfs
-
- In this location, mount.nfs will be invoked automatically for NFS mounts
- by the system mount command.
-
- NOTE: mount.nfs and therefore nfs-utils-1.1.2 or greater is only needed
- on the NFS client machine. You do not need this specific version of
- nfs-utils on the server. Furthermore, only the mount.nfs command from
- nfs-utils-1.1.2 is needed on the client.
-
- - Install a Linux kernel with NFS/RDMA
-
- The NFS/RDMA client and server are both included in the mainline Linux
- kernel version 2.6.25 and later. This and other versions of the Linux
- kernel can be found at:
-
- https://www.kernel.org/pub/linux/kernel/
-
- Download the sources and place them in an appropriate location.
-
- - Configure the RDMA stack
-
- Make sure your kernel configuration has RDMA support enabled. Under
- Device Drivers -> InfiniBand support, update the kernel configuration
- to enable InfiniBand support [NOTE: the option name is misleading. Enabling
- InfiniBand support is required for all RDMA devices (IB, iWARP, etc.)].
-
- Enable the appropriate IB HCA support (mlx4, mthca, ehca, ipath, etc.) or
- iWARP adapter support (amso, cxgb3, etc.).
-
- If you are using InfiniBand, be sure to enable IP-over-InfiniBand support.
-
- - Configure the NFS client and server
-
- Your kernel configuration must also have NFS file system support and/or
- NFS server support enabled. These and other NFS related configuration
- options can be found under File Systems -> Network File Systems.
-
- - Build, install, reboot
-
- The NFS/RDMA code will be enabled automatically if NFS and RDMA
- are turned on. The NFS/RDMA client and server are configured via the hidden
- SUNRPC_XPRT_RDMA config option that depends on SUNRPC and INFINIBAND. The
- value of SUNRPC_XPRT_RDMA will be:
-
- - N if either SUNRPC or INFINIBAND are N, in this case the NFS/RDMA client
- and server will not be built
- - M if both SUNRPC and INFINIBAND are on (M or Y) and at least one is M,
- in this case the NFS/RDMA client and server will be built as modules
- - Y if both SUNRPC and INFINIBAND are Y, in this case the NFS/RDMA client
- and server will be built into the kernel
-
- Therefore, if you have followed the steps above and turned no NFS and RDMA,
- the NFS/RDMA client and server will be built.
-
- Build a new kernel, install it, boot it.
-
-Check RDMA and NFS Setup
-~~~~~~~~~~~~~~~~~~~~~~~~
-
- Before configuring the NFS/RDMA software, it is a good idea to test
- your new kernel to ensure that the kernel is working correctly.
- In particular, it is a good idea to verify that the RDMA stack
- is functioning as expected and standard NFS over TCP/IP and/or UDP/IP
- is working properly.
-
- - Check RDMA Setup
-
- If you built the RDMA components as modules, load them at
- this time. For example, if you are using a Mellanox Tavor/Sinai/Arbel
- card:
-
- $ modprobe ib_mthca
- $ modprobe ib_ipoib
-
- If you are using InfiniBand, make sure there is a Subnet Manager (SM)
- running on the network. If your IB switch has an embedded SM, you can
- use it. Otherwise, you will need to run an SM, such as OpenSM, on one
- of your end nodes.
-
- If an SM is running on your network, you should see the following:
-
- $ cat /sys/class/infiniband/driverX/ports/1/state
- 4: ACTIVE
-
- where driverX is mthca0, ipath5, ehca3, etc.
-
- To further test the InfiniBand software stack, use IPoIB (this
- assumes you have two IB hosts named host1 and host2):
-
- host1$ ip link set dev ib0 up
- host1$ ip address add dev ib0 a.b.c.x
- host2$ ip link set dev ib0 up
- host2$ ip address add dev ib0 a.b.c.y
- host1$ ping a.b.c.y
- host2$ ping a.b.c.x
-
- For other device types, follow the appropriate procedures.
-
- - Check NFS Setup
-
- For the NFS components enabled above (client and/or server),
- test their functionality over standard Ethernet using TCP/IP or UDP/IP.
-
-NFS/RDMA Setup
-~~~~~~~~~~~~~~
-
- We recommend that you use two machines, one to act as the client and
- one to act as the server.
-
- One time configuration:
-
- - On the server system, configure the /etc/exports file and
- start the NFS/RDMA server.
-
- Exports entries with the following formats have been tested:
-
- /vol0 192.168.0.47(fsid=0,rw,async,insecure,no_root_squash)
- /vol0 192.168.0.0/255.255.255.0(fsid=0,rw,async,insecure,no_root_squash)
-
- The IP address(es) is(are) the client's IPoIB address for an InfiniBand
- HCA or the client's iWARP address(es) for an RNIC.
-
- NOTE: The "insecure" option must be used because the NFS/RDMA client does
- not use a reserved port.
-
- Each time a machine boots:
-
- - Load and configure the RDMA drivers
-
- For InfiniBand using a Mellanox adapter:
-
- $ modprobe ib_mthca
- $ modprobe ib_ipoib
- $ ip li set dev ib0 up
- $ ip addr add dev ib0 a.b.c.d
-
- NOTE: use unique addresses for the client and server
-
- - Start the NFS server
-
- If the NFS/RDMA server was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
- kernel config), load the RDMA transport module:
-
- $ modprobe svcrdma
-
- Regardless of how the server was built (module or built-in), start the
- server:
-
- $ /etc/init.d/nfs start
-
- or
-
- $ service nfs start
-
- Instruct the server to listen on the RDMA transport:
-
- $ echo rdma 20049 > /proc/fs/nfsd/portlist
-
- - On the client system
-
- If the NFS/RDMA client was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
- kernel config), load the RDMA client module:
-
- $ modprobe xprtrdma.ko
-
- Regardless of how the client was built (module or built-in), use this
- command to mount the NFS/RDMA server:
-
- $ mount -o rdma,port=20049 <IPoIB-server-name-or-address>:/<export> /mnt
-
- To verify that the mount is using RDMA, run "cat /proc/mounts" and check
- the "proto" field for the given mount.
-
- Congratulations! You're using NFS/RDMA!
diff --git a/Documentation/filesystems/path-lookup.rst b/Documentation/filesystems/path-lookup.rst
index 434a07b0002b..a3216979298b 100644
--- a/Documentation/filesystems/path-lookup.rst
+++ b/Documentation/filesystems/path-lookup.rst
@@ -13,6 +13,7 @@ It has subsequently been updated to reflect changes in the kernel
including:
- per-directory parallel name lookup.
+- ``openat2()`` resolution restriction flags.
Introduction to pathname lookup
===============================
@@ -235,6 +236,13 @@ renamed. If ``d_lookup`` finds that a rename happened while it
unsuccessfully scanned a chain in the hash table, it simply tries
again.
+``rename_lock`` is also used to detect and defend against potential attacks
+against ``LOOKUP_BENEATH`` and ``LOOKUP_IN_ROOT`` when resolving ".." (where
+the parent directory is moved outside the root, bypassing the ``path_equal()``
+check). If ``rename_lock`` is updated during the lookup and the path encounters
+a "..", a potential attack occurred and ``handle_dots()`` will bail out with
+``-EAGAIN``.
+
inode->i_rwsem
~~~~~~~~~~~~~~
@@ -348,6 +356,13 @@ any changes to any mount points while stepping up. This locking is
needed to stabilize the link to the mounted-on dentry, which the
refcount on the mount itself doesn't ensure.
+``mount_lock`` is also used to detect and defend against potential attacks
+against ``LOOKUP_BENEATH`` and ``LOOKUP_IN_ROOT`` when resolving ".." (where
+the parent directory is moved outside the root, bypassing the ``path_equal()``
+check). If ``mount_lock`` is updated during the lookup and the path encounters
+a "..", a potential attack occurred and ``handle_dots()`` will bail out with
+``-EAGAIN``.
+
RCU
~~~
@@ -405,6 +420,10 @@ is requested. Keeping a reference in the ``nameidata`` ensures that
only one root is in effect for the entire path walk, even if it races
with a ``chroot()`` system call.
+It should be noted that in the case of ``LOOKUP_IN_ROOT`` or
+``LOOKUP_BENEATH``, the effective root becomes the directory file descriptor
+passed to ``openat2()`` (which exposes these ``LOOKUP_`` flags).
+
The root is needed when either of two conditions holds: (1) either the
pathname or a symbolic link starts with a "'/'", or (2) a "``..``"
component is being handled, since "``..``" from the root must always stay
@@ -1149,7 +1168,7 @@ so ``NULL`` is returned to indicate that the symlink can be released and
the stack frame discarded.
The other case involves things in ``/proc`` that look like symlinks but
-aren't really::
+aren't really (and are therefore commonly referred to as "magic-links")::
$ ls -l /proc/self/fd/1
lrwx------ 1 neilb neilb 64 Jun 13 10:19 /proc/self/fd/1 -> /dev/pts/4
@@ -1286,7 +1305,9 @@ A few flags
A suitable way to wrap up this tour of pathname walking is to list
the various flags that can be stored in the ``nameidata`` to guide the
lookup process. Many of these are only meaningful on the final
-component, others reflect the current state of the pathname lookup.
+component, others reflect the current state of the pathname lookup, and some
+apply restrictions to all path components encountered in the path lookup.
+
And then there is ``LOOKUP_EMPTY``, which doesn't fit conceptually with
the others. If this is not set, an empty pathname causes an error
very early on. If it is set, empty pathnames are not considered to be
@@ -1310,13 +1331,48 @@ longer needed.
``LOOKUP_JUMPED`` means that the current dentry was chosen not because
it had the right name but for some other reason. This happens when
following "``..``", following a symlink to ``/``, crossing a mount point
-or accessing a "``/proc/$PID/fd/$FD``" symlink. In this case the
-filesystem has not been asked to revalidate the name (with
-``d_revalidate()``). In such cases the inode may still need to be
-revalidated, so ``d_op->d_weak_revalidate()`` is called if
+or accessing a "``/proc/$PID/fd/$FD``" symlink (also known as a "magic
+link"). In this case the filesystem has not been asked to revalidate the
+name (with ``d_revalidate()``). In such cases the inode may still need
+to be revalidated, so ``d_op->d_weak_revalidate()`` is called if
``LOOKUP_JUMPED`` is set when the look completes - which may be at the
final component or, when creating, unlinking, or renaming, at the penultimate component.
+Resolution-restriction flags
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+In order to allow userspace to protect itself against certain race conditions
+and attack scenarios involving changing path components, a series of flags are
+available which apply restrictions to all path components encountered during
+path lookup. These flags are exposed through ``openat2()``'s ``resolve`` field.
+
+``LOOKUP_NO_SYMLINKS`` blocks all symlink traversals (including magic-links).
+This is distinctly different from ``LOOKUP_FOLLOW``, because the latter only
+relates to restricting the following of trailing symlinks.
+
+``LOOKUP_NO_MAGICLINKS`` blocks all magic-link traversals. Filesystems must
+ensure that they return errors from ``nd_jump_link()``, because that is how
+``LOOKUP_NO_MAGICLINKS`` and other magic-link restrictions are implemented.
+
+``LOOKUP_NO_XDEV`` blocks all ``vfsmount`` traversals (this includes both
+bind-mounts and ordinary mounts). Note that the ``vfsmount`` which contains the
+lookup is determined by the first mountpoint the path lookup reaches --
+absolute paths start with the ``vfsmount`` of ``/``, and relative paths start
+with the ``dfd``'s ``vfsmount``. Magic-links are only permitted if the
+``vfsmount`` of the path is unchanged.
+
+``LOOKUP_BENEATH`` blocks any path components which resolve outside the
+starting point of the resolution. This is done by blocking ``nd_jump_root()``
+as well as blocking ".." if it would jump outside the starting point.
+``rename_lock`` and ``mount_lock`` are used to detect attacks against the
+resolution of "..". Magic-links are also blocked.
+
+``LOOKUP_IN_ROOT`` resolves all path components as though the starting point
+were the filesystem root. ``nd_jump_root()`` brings the resolution back to to
+the starting point, and ".." at the starting point will act as a no-op. As with
+``LOOKUP_BENEATH``, ``rename_lock`` and ``mount_lock`` are used to detect
+attacks against ".." resolution. Magic-links are also blocked.
+
Final-component flags
~~~~~~~~~~~~~~~~~~~~~
diff --git a/Documentation/filesystems/vfat.rst b/Documentation/filesystems/vfat.rst
new file mode 100644
index 000000000000..e85d74e91295
--- /dev/null
+++ b/Documentation/filesystems/vfat.rst
@@ -0,0 +1,387 @@
+====
+VFAT
+====
+
+USING VFAT
+==========
+
+To use the vfat filesystem, use the filesystem type 'vfat'. i.e.::
+
+ mount -t vfat /dev/fd0 /mnt
+
+
+No special partition formatter is required,
+'mkdosfs' will work fine if you want to format from within Linux.
+
+VFAT MOUNT OPTIONS
+==================
+
+**uid=###**
+ Set the owner of all files on this filesystem.
+ The default is the uid of current process.
+
+**gid=###**
+ Set the group of all files on this filesystem.
+ The default is the gid of current process.
+
+**umask=###**
+ The permission mask (for files and directories, see *umask(1)*).
+ The default is the umask of current process.
+
+**dmask=###**
+ The permission mask for the directory.
+ The default is the umask of current process.
+
+**fmask=###**
+ The permission mask for files.
+ The default is the umask of current process.
+
+**allow_utime=###**
+ This option controls the permission check of mtime/atime.
+
+ **-20**: If current process is in group of file's group ID,
+ you can change timestamp.
+
+ **-2**: Other users can change timestamp.
+
+ The default is set from dmask option. If the directory is
+ writable, utime(2) is also allowed. i.e. ~dmask & 022.
+
+ Normally utime(2) checks current process is owner of
+ the file, or it has CAP_FOWNER capability. But FAT
+ filesystem doesn't have uid/gid on disk, so normal
+ check is too unflexible. With this option you can
+ relax it.
+
+**codepage=###**
+ Sets the codepage number for converting to shortname
+ characters on FAT filesystem.
+ By default, FAT_DEFAULT_CODEPAGE setting is used.
+
+**iocharset=<name>**
+ Character set to use for converting between the
+ encoding is used for user visible filename and 16 bit
+ Unicode characters. Long filenames are stored on disk
+ in Unicode format, but Unix for the most part doesn't
+ know how to deal with Unicode.
+ By default, FAT_DEFAULT_IOCHARSET setting is used.
+
+ There is also an option of doing UTF-8 translations
+ with the utf8 option.
+
+.. note:: ``iocharset=utf8`` is not recommended. If unsure, you should consider
+ the utf8 option instead.
+
+**utf8=<bool>**
+ UTF-8 is the filesystem safe version of Unicode that
+ is used by the console. It can be enabled or disabled
+ for the filesystem with this option.
+ If 'uni_xlate' gets set, UTF-8 gets disabled.
+ By default, FAT_DEFAULT_UTF8 setting is used.
+
+**uni_xlate=<bool>**
+ Translate unhandled Unicode characters to special
+ escaped sequences. This would let you backup and
+ restore filenames that are created with any Unicode
+ characters. Until Linux supports Unicode for real,
+ this gives you an alternative. Without this option,
+ a '?' is used when no translation is possible. The
+ escape character is ':' because it is otherwise
+ illegal on the vfat filesystem. The escape sequence
+ that gets used is ':' and the four digits of hexadecimal
+ unicode.
+
+**nonumtail=<bool>**
+ When creating 8.3 aliases, normally the alias will
+ end in '~1' or tilde followed by some number. If this
+ option is set, then if the filename is
+ "longfilename.txt" and "longfile.txt" does not
+ currently exist in the directory, longfile.txt will
+ be the short alias instead of longfi~1.txt.
+
+**usefree**
+ Use the "free clusters" value stored on FSINFO. It will
+ be used to determine number of free clusters without
+ scanning disk. But it's not used by default, because
+ recent Windows don't update it correctly in some
+ case. If you are sure the "free clusters" on FSINFO is
+ correct, by this option you can avoid scanning disk.
+
+**quiet**
+ Stops printing certain warning messages.
+
+**check=s|r|n**
+ Case sensitivity checking setting.
+
+ **s**: strict, case sensitive
+
+ **r**: relaxed, case insensitive
+
+ **n**: normal, default setting, currently case insensitive
+
+**nocase**
+ This was deprecated for vfat. Use ``shortname=win95`` instead.
+
+**shortname=lower|win95|winnt|mixed**
+ Shortname display/create setting.
+
+ **lower**: convert to lowercase for display,
+ emulate the Windows 95 rule for create.
+
+ **win95**: emulate the Windows 95 rule for display/create.
+
+ **winnt**: emulate the Windows NT rule for display/create.
+
+ **mixed**: emulate the Windows NT rule for display,
+ emulate the Windows 95 rule for create.
+
+ Default setting is `mixed`.
+
+**tz=UTC**
+ Interpret timestamps as UTC rather than local time.
+ This option disables the conversion of timestamps
+ between local time (as used by Windows on FAT) and UTC
+ (which Linux uses internally). This is particularly
+ useful when mounting devices (like digital cameras)
+ that are set to UTC in order to avoid the pitfalls of
+ local time.
+
+**time_offset=minutes**
+ Set offset for conversion of timestamps from local time
+ used by FAT to UTC. I.e. <minutes> minutes will be subtracted
+ from each timestamp to convert it to UTC used internally by
+ Linux. This is useful when time zone set in ``sys_tz`` is
+ not the time zone used by the filesystem. Note that this
+ option still does not provide correct time stamps in all
+ cases in presence of DST - time stamps in a different DST
+ setting will be off by one hour.
+
+**showexec**
+ If set, the execute permission bits of the file will be
+ allowed only if the extension part of the name is .EXE,
+ .COM, or .BAT. Not set by default.
+
+**debug**
+ Can be set, but unused by the current implementation.
+
+**sys_immutable**
+ If set, ATTR_SYS attribute on FAT is handled as
+ IMMUTABLE flag on Linux. Not set by default.
+
+**flush**
+ If set, the filesystem will try to flush to disk more
+ early than normal. Not set by default.
+
+**rodir**
+ FAT has the ATTR_RO (read-only) attribute. On Windows,
+ the ATTR_RO of the directory will just be ignored,
+ and is used only by applications as a flag (e.g. it's set
+ for the customized folder).
+
+ If you want to use ATTR_RO as read-only flag even for
+ the directory, set this option.
+
+**errors=panic|continue|remount-ro**
+ specify FAT behavior on critical errors: panic, continue
+ without doing anything or remount the partition in
+ read-only mode (default behavior).
+
+**discard**
+ If set, issues discard/TRIM commands to the block
+ device when blocks are freed. This is useful for SSD devices
+ and sparse/thinly-provisoned LUNs.
+
+**nfs=stale_rw|nostale_ro**
+ Enable this only if you want to export the FAT filesystem
+ over NFS.
+
+ **stale_rw**: This option maintains an index (cache) of directory
+ *inodes* by *i_logstart* which is used by the nfs-related code to
+ improve look-ups. Full file operations (read/write) over NFS is
+ supported but with cache eviction at NFS server, this could
+ result in ESTALE issues.
+
+ **nostale_ro**: This option bases the *inode* number and filehandle
+ on the on-disk location of a file in the MS-DOS directory entry.
+ This ensures that ESTALE will not be returned after a file is
+ evicted from the inode cache. However, it means that operations
+ such as rename, create and unlink could cause filehandles that
+ previously pointed at one file to point at a different file,
+ potentially causing data corruption. For this reason, this
+ option also mounts the filesystem readonly.
+
+ To maintain backward compatibility, ``'-o nfs'`` is also accepted,
+ defaulting to "stale_rw".
+
+**dos1xfloppy <bool>: 0,1,yes,no,true,false**
+ If set, use a fallback default BIOS Parameter Block
+ configuration, determined by backing device size. These static
+ parameters match defaults assumed by DOS 1.x for 160 kiB,
+ 180 kiB, 320 kiB, and 360 kiB floppies and floppy images.
+
+
+
+LIMITATION
+==========
+
+The fallocated region of file is discarded at umount/evict time
+when using fallocate with FALLOC_FL_KEEP_SIZE.
+So, User should assume that fallocated region can be discarded at
+last close if there is memory pressure resulting in eviction of
+the inode from the memory. As a result, for any dependency on
+the fallocated region, user should make sure to recheck fallocate
+after reopening the file.
+
+TODO
+====
+Need to get rid of the raw scanning stuff. Instead, always use
+a get next directory entry approach. The only thing left that uses
+raw scanning is the directory renaming code.
+
+
+POSSIBLE PROBLEMS
+=================
+
+- vfat_valid_longname does not properly checked reserved names.
+- When a volume name is the same as a directory name in the root
+ directory of the filesystem, the directory name sometimes shows
+ up as an empty file.
+- autoconv option does not work correctly.
+
+
+TEST SUITE
+==========
+If you plan to make any modifications to the vfat filesystem, please
+get the test suite that comes with the vfat distribution at
+
+`<http://web.archive.org/web/*/http://bmrc.berkeley.edu/people/chaffee/vfat.html>`_
+
+This tests quite a few parts of the vfat filesystem and additional
+tests for new features or untested features would be appreciated.
+
+NOTES ON THE STRUCTURE OF THE VFAT FILESYSTEM
+=============================================
+This documentation was provided by Galen C. Hunt gchunt@cs.rochester.edu and
+lightly annotated by Gordon Chaffee.
+
+This document presents a very rough, technical overview of my
+knowledge of the extended FAT file system used in Windows NT 3.5 and
+Windows 95. I don't guarantee that any of the following is correct,
+but it appears to be so.
+
+The extended FAT file system is almost identical to the FAT
+file system used in DOS versions up to and including *6.223410239847*
+:-). The significant change has been the addition of long file names.
+These names support up to 255 characters including spaces and lower
+case characters as opposed to the traditional 8.3 short names.
+
+Here is the description of the traditional FAT entry in the current
+Windows 95 filesystem::
+
+ struct directory { // Short 8.3 names
+ unsigned char name[8]; // file name
+ unsigned char ext[3]; // file extension
+ unsigned char attr; // attribute byte
+ unsigned char lcase; // Case for base and extension
+ unsigned char ctime_ms; // Creation time, milliseconds
+ unsigned char ctime[2]; // Creation time
+ unsigned char cdate[2]; // Creation date
+ unsigned char adate[2]; // Last access date
+ unsigned char reserved[2]; // reserved values (ignored)
+ unsigned char time[2]; // time stamp
+ unsigned char date[2]; // date stamp
+ unsigned char start[2]; // starting cluster number
+ unsigned char size[4]; // size of the file
+ };
+
+
+The lcase field specifies if the base and/or the extension of an 8.3
+name should be capitalized. This field does not seem to be used by
+Windows 95 but it is used by Windows NT. The case of filenames is not
+completely compatible from Windows NT to Windows 95. It is not completely
+compatible in the reverse direction, however. Filenames that fit in
+the 8.3 namespace and are written on Windows NT to be lowercase will
+show up as uppercase on Windows 95.
+
+.. note:: Note that the ``start`` and ``size`` values are actually little
+ endian integer values. The descriptions of the fields in this
+ structure are public knowledge and can be found elsewhere.
+
+With the extended FAT system, Microsoft has inserted extra
+directory entries for any files with extended names. (Any name which
+legally fits within the old 8.3 encoding scheme does not have extra
+entries.) I call these extra entries slots. Basically, a slot is a
+specially formatted directory entry which holds up to 13 characters of
+a file's extended name. Think of slots as additional labeling for the
+directory entry of the file to which they correspond. Microsoft
+prefers to refer to the 8.3 entry for a file as its alias and the
+extended slot directory entries as the file name.
+
+The C structure for a slot directory entry follows::
+
+ struct slot { // Up to 13 characters of a long name
+ unsigned char id; // sequence number for slot
+ unsigned char name0_4[10]; // first 5 characters in name
+ unsigned char attr; // attribute byte
+ unsigned char reserved; // always 0
+ unsigned char alias_checksum; // checksum for 8.3 alias
+ unsigned char name5_10[12]; // 6 more characters in name
+ unsigned char start[2]; // starting cluster number
+ unsigned char name11_12[4]; // last 2 characters in name
+ };
+
+
+If the layout of the slots looks a little odd, it's only
+because of Microsoft's efforts to maintain compatibility with old
+software. The slots must be disguised to prevent old software from
+panicking. To this end, a number of measures are taken:
+
+ 1) The attribute byte for a slot directory entry is always set
+ to 0x0f. This corresponds to an old directory entry with
+ attributes of "hidden", "system", "read-only", and "volume
+ label". Most old software will ignore any directory
+ entries with the "volume label" bit set. Real volume label
+ entries don't have the other three bits set.
+
+ 2) The starting cluster is always set to 0, an impossible
+ value for a DOS file.
+
+Because the extended FAT system is backward compatible, it is
+possible for old software to modify directory entries. Measures must
+be taken to ensure the validity of slots. An extended FAT system can
+verify that a slot does in fact belong to an 8.3 directory entry by
+the following:
+
+ 1) Positioning. Slots for a file always immediately proceed
+ their corresponding 8.3 directory entry. In addition, each
+ slot has an id which marks its order in the extended file
+ name. Here is a very abbreviated view of an 8.3 directory
+ entry and its corresponding long name slots for the file
+ "My Big File.Extension which is long"::
+
+ <proceeding files...>
+ <slot #3, id = 0x43, characters = "h is long">
+ <slot #2, id = 0x02, characters = "xtension whic">
+ <slot #1, id = 0x01, characters = "My Big File.E">
+ <directory entry, name = "MYBIGFIL.EXT">
+
+
+ .. note:: Note that the slots are stored from last to first. Slots
+ are numbered from 1 to N. The Nth slot is ``or'ed`` with
+ 0x40 to mark it as the last one.
+
+ 2) Checksum. Each slot has an alias_checksum value. The
+ checksum is calculated from the 8.3 name using the
+ following algorithm::
+
+ for (sum = i = 0; i < 11; i++) {
+ sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + name[i]
+ }
+
+
+ 3) If there is free space in the final slot, a Unicode ``NULL (0x0000)``
+ is stored after the final character. After that, all unused
+ characters in the final slot are set to Unicode 0xFFFF.
+
+Finally, note that the extended name is stored in Unicode. Each Unicode
+character takes either two or four bytes, UTF-16LE encoded.
diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt
deleted file mode 100644
index 91031298beb1..000000000000
--- a/Documentation/filesystems/vfat.txt
+++ /dev/null
@@ -1,347 +0,0 @@
-USING VFAT
-----------------------------------------------------------------------
-To use the vfat filesystem, use the filesystem type 'vfat'. i.e.
- mount -t vfat /dev/fd0 /mnt
-
-No special partition formatter is required. mkdosfs will work fine
-if you want to format from within Linux.
-
-VFAT MOUNT OPTIONS
-----------------------------------------------------------------------
-uid=### -- Set the owner of all files on this filesystem.
- The default is the uid of current process.
-
-gid=### -- Set the group of all files on this filesystem.
- The default is the gid of current process.
-
-umask=### -- The permission mask (for files and directories, see umask(1)).
- The default is the umask of current process.
-
-dmask=### -- The permission mask for the directory.
- The default is the umask of current process.
-
-fmask=### -- The permission mask for files.
- The default is the umask of current process.
-
-allow_utime=### -- This option controls the permission check of mtime/atime.
-
- 20 - If current process is in group of file's group ID,
- you can change timestamp.
- 2 - Other users can change timestamp.
-
- The default is set from `dmask' option. (If the directory is
- writable, utime(2) is also allowed. I.e. ~dmask & 022)
-
- Normally utime(2) checks current process is owner of
- the file, or it has CAP_FOWNER capability. But FAT
- filesystem doesn't have uid/gid on disk, so normal
- check is too unflexible. With this option you can
- relax it.
-
-codepage=### -- Sets the codepage number for converting to shortname
- characters on FAT filesystem.
- By default, FAT_DEFAULT_CODEPAGE setting is used.
-
-iocharset=<name> -- Character set to use for converting between the
- encoding is used for user visible filename and 16 bit
- Unicode characters. Long filenames are stored on disk
- in Unicode format, but Unix for the most part doesn't
- know how to deal with Unicode.
- By default, FAT_DEFAULT_IOCHARSET setting is used.
-
- There is also an option of doing UTF-8 translations
- with the utf8 option.
-
- NOTE: "iocharset=utf8" is not recommended. If unsure,
- you should consider the following option instead.
-
-utf8=<bool> -- UTF-8 is the filesystem safe version of Unicode that
- is used by the console. It can be enabled or disabled
- for the filesystem with this option.
- If 'uni_xlate' gets set, UTF-8 gets disabled.
- By default, FAT_DEFAULT_UTF8 setting is used.
-
-uni_xlate=<bool> -- Translate unhandled Unicode characters to special
- escaped sequences. This would let you backup and
- restore filenames that are created with any Unicode
- characters. Until Linux supports Unicode for real,
- this gives you an alternative. Without this option,
- a '?' is used when no translation is possible. The
- escape character is ':' because it is otherwise
- illegal on the vfat filesystem. The escape sequence
- that gets used is ':' and the four digits of hexadecimal
- unicode.
-
-nonumtail=<bool> -- When creating 8.3 aliases, normally the alias will
- end in '~1' or tilde followed by some number. If this
- option is set, then if the filename is
- "longfilename.txt" and "longfile.txt" does not
- currently exist in the directory, 'longfile.txt' will
- be the short alias instead of 'longfi~1.txt'.
-
-usefree -- Use the "free clusters" value stored on FSINFO. It'll
- be used to determine number of free clusters without
- scanning disk. But it's not used by default, because
- recent Windows don't update it correctly in some
- case. If you are sure the "free clusters" on FSINFO is
- correct, by this option you can avoid scanning disk.
-
-quiet -- Stops printing certain warning messages.
-
-check=s|r|n -- Case sensitivity checking setting.
- s: strict, case sensitive
- r: relaxed, case insensitive
- n: normal, default setting, currently case insensitive
-
-nocase -- This was deprecated for vfat. Use shortname=win95 instead.
-
-shortname=lower|win95|winnt|mixed
- -- Shortname display/create setting.
- lower: convert to lowercase for display,
- emulate the Windows 95 rule for create.
- win95: emulate the Windows 95 rule for display/create.
- winnt: emulate the Windows NT rule for display/create.
- mixed: emulate the Windows NT rule for display,
- emulate the Windows 95 rule for create.
- Default setting is `mixed'.
-
-tz=UTC -- Interpret timestamps as UTC rather than local time.
- This option disables the conversion of timestamps
- between local time (as used by Windows on FAT) and UTC
- (which Linux uses internally). This is particularly
- useful when mounting devices (like digital cameras)
- that are set to UTC in order to avoid the pitfalls of
- local time.
-time_offset=minutes
- -- Set offset for conversion of timestamps from local time
- used by FAT to UTC. I.e. <minutes> minutes will be subtracted
- from each timestamp to convert it to UTC used internally by
- Linux. This is useful when time zone set in sys_tz is
- not the time zone used by the filesystem. Note that this
- option still does not provide correct time stamps in all
- cases in presence of DST - time stamps in a different DST
- setting will be off by one hour.
-
-showexec -- If set, the execute permission bits of the file will be
- allowed only if the extension part of the name is .EXE,
- .COM, or .BAT. Not set by default.
-
-debug -- Can be set, but unused by the current implementation.
-
-sys_immutable -- If set, ATTR_SYS attribute on FAT is handled as
- IMMUTABLE flag on Linux. Not set by default.
-
-flush -- If set, the filesystem will try to flush to disk more
- early than normal. Not set by default.
-
-rodir -- FAT has the ATTR_RO (read-only) attribute. On Windows,
- the ATTR_RO of the directory will just be ignored,
- and is used only by applications as a flag (e.g. it's set
- for the customized folder).
-
- If you want to use ATTR_RO as read-only flag even for
- the directory, set this option.
-
-errors=panic|continue|remount-ro
- -- specify FAT behavior on critical errors: panic, continue
- without doing anything or remount the partition in
- read-only mode (default behavior).
-
-discard -- If set, issues discard/TRIM commands to the block
- device when blocks are freed. This is useful for SSD devices
- and sparse/thinly-provisoned LUNs.
-
-nfs=stale_rw|nostale_ro
- Enable this only if you want to export the FAT filesystem
- over NFS.
-
- stale_rw: This option maintains an index (cache) of directory
- inodes by i_logstart which is used by the nfs-related code to
- improve look-ups. Full file operations (read/write) over NFS is
- supported but with cache eviction at NFS server, this could
- result in ESTALE issues.
-
- nostale_ro: This option bases the inode number and filehandle
- on the on-disk location of a file in the MS-DOS directory entry.
- This ensures that ESTALE will not be returned after a file is
- evicted from the inode cache. However, it means that operations
- such as rename, create and unlink could cause filehandles that
- previously pointed at one file to point at a different file,
- potentially causing data corruption. For this reason, this
- option also mounts the filesystem readonly.
-
- To maintain backward compatibility, '-o nfs' is also accepted,
- defaulting to stale_rw
-
-dos1xfloppy -- If set, use a fallback default BIOS Parameter Block
- configuration, determined by backing device size. These static
- parameters match defaults assumed by DOS 1.x for 160 kiB,
- 180 kiB, 320 kiB, and 360 kiB floppies and floppy images.
-
-
-<bool>: 0,1,yes,no,true,false
-
-LIMITATION
----------------------------------------------------------------------
-* The fallocated region of file is discarded at umount/evict time
- when using fallocate with FALLOC_FL_KEEP_SIZE.
- So, User should assume that fallocated region can be discarded at
- last close if there is memory pressure resulting in eviction of
- the inode from the memory. As a result, for any dependency on
- the fallocated region, user should make sure to recheck fallocate
- after reopening the file.
-
-TODO
-----------------------------------------------------------------------
-* Need to get rid of the raw scanning stuff. Instead, always use
- a get next directory entry approach. The only thing left that uses
- raw scanning is the directory renaming code.
-
-
-POSSIBLE PROBLEMS
-----------------------------------------------------------------------
-* vfat_valid_longname does not properly checked reserved names.
-* When a volume name is the same as a directory name in the root
- directory of the filesystem, the directory name sometimes shows
- up as an empty file.
-* autoconv option does not work correctly.
-
-BUG REPORTS
-----------------------------------------------------------------------
-If you have trouble with the VFAT filesystem, mail bug reports to
-chaffee@bmrc.cs.berkeley.edu. Please specify the filename
-and the operation that gave you trouble.
-
-TEST SUITE
-----------------------------------------------------------------------
-If you plan to make any modifications to the vfat filesystem, please
-get the test suite that comes with the vfat distribution at
-
- http://web.archive.org/web/*/http://bmrc.berkeley.edu/
- people/chaffee/vfat.html
-
-This tests quite a few parts of the vfat filesystem and additional
-tests for new features or untested features would be appreciated.
-
-NOTES ON THE STRUCTURE OF THE VFAT FILESYSTEM
-----------------------------------------------------------------------
-(This documentation was provided by Galen C. Hunt <gchunt@cs.rochester.edu>
- and lightly annotated by Gordon Chaffee).
-
-This document presents a very rough, technical overview of my
-knowledge of the extended FAT file system used in Windows NT 3.5 and
-Windows 95. I don't guarantee that any of the following is correct,
-but it appears to be so.
-
-The extended FAT file system is almost identical to the FAT
-file system used in DOS versions up to and including 6.223410239847
-:-). The significant change has been the addition of long file names.
-These names support up to 255 characters including spaces and lower
-case characters as opposed to the traditional 8.3 short names.
-
-Here is the description of the traditional FAT entry in the current
-Windows 95 filesystem:
-
- struct directory { // Short 8.3 names
- unsigned char name[8]; // file name
- unsigned char ext[3]; // file extension
- unsigned char attr; // attribute byte
- unsigned char lcase; // Case for base and extension
- unsigned char ctime_ms; // Creation time, milliseconds
- unsigned char ctime[2]; // Creation time
- unsigned char cdate[2]; // Creation date
- unsigned char adate[2]; // Last access date
- unsigned char reserved[2]; // reserved values (ignored)
- unsigned char time[2]; // time stamp
- unsigned char date[2]; // date stamp
- unsigned char start[2]; // starting cluster number
- unsigned char size[4]; // size of the file
- };
-
-The lcase field specifies if the base and/or the extension of an 8.3
-name should be capitalized. This field does not seem to be used by
-Windows 95 but it is used by Windows NT. The case of filenames is not
-completely compatible from Windows NT to Windows 95. It is not completely
-compatible in the reverse direction, however. Filenames that fit in
-the 8.3 namespace and are written on Windows NT to be lowercase will
-show up as uppercase on Windows 95.
-
-Note that the "start" and "size" values are actually little
-endian integer values. The descriptions of the fields in this
-structure are public knowledge and can be found elsewhere.
-
-With the extended FAT system, Microsoft has inserted extra
-directory entries for any files with extended names. (Any name which
-legally fits within the old 8.3 encoding scheme does not have extra
-entries.) I call these extra entries slots. Basically, a slot is a
-specially formatted directory entry which holds up to 13 characters of
-a file's extended name. Think of slots as additional labeling for the
-directory entry of the file to which they correspond. Microsoft
-prefers to refer to the 8.3 entry for a file as its alias and the
-extended slot directory entries as the file name.
-
-The C structure for a slot directory entry follows:
-
- struct slot { // Up to 13 characters of a long name
- unsigned char id; // sequence number for slot
- unsigned char name0_4[10]; // first 5 characters in name
- unsigned char attr; // attribute byte
- unsigned char reserved; // always 0
- unsigned char alias_checksum; // checksum for 8.3 alias
- unsigned char name5_10[12]; // 6 more characters in name
- unsigned char start[2]; // starting cluster number
- unsigned char name11_12[4]; // last 2 characters in name
- };
-
-If the layout of the slots looks a little odd, it's only
-because of Microsoft's efforts to maintain compatibility with old
-software. The slots must be disguised to prevent old software from
-panicking. To this end, a number of measures are taken:
-
- 1) The attribute byte for a slot directory entry is always set
- to 0x0f. This corresponds to an old directory entry with
- attributes of "hidden", "system", "read-only", and "volume
- label". Most old software will ignore any directory
- entries with the "volume label" bit set. Real volume label
- entries don't have the other three bits set.
-
- 2) The starting cluster is always set to 0, an impossible
- value for a DOS file.
-
-Because the extended FAT system is backward compatible, it is
-possible for old software to modify directory entries. Measures must
-be taken to ensure the validity of slots. An extended FAT system can
-verify that a slot does in fact belong to an 8.3 directory entry by
-the following:
-
- 1) Positioning. Slots for a file always immediately proceed
- their corresponding 8.3 directory entry. In addition, each
- slot has an id which marks its order in the extended file
- name. Here is a very abbreviated view of an 8.3 directory
- entry and its corresponding long name slots for the file
- "My Big File.Extension which is long":
-
- <proceeding files...>
- <slot #3, id = 0x43, characters = "h is long">
- <slot #2, id = 0x02, characters = "xtension whic">
- <slot #1, id = 0x01, characters = "My Big File.E">
- <directory entry, name = "MYBIGFIL.EXT">
-
- Note that the slots are stored from last to first. Slots
- are numbered from 1 to N. The Nth slot is or'ed with 0x40
- to mark it as the last one.
-
- 2) Checksum. Each slot has an "alias_checksum" value. The
- checksum is calculated from the 8.3 name using the
- following algorithm:
-
- for (sum = i = 0; i < 11; i++) {
- sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + name[i]
- }
-
- 3) If there is free space in the final slot, a Unicode NULL (0x0000)
- is stored after the final character. After that, all unused
- characters in the final slot are set to Unicode 0xFFFF.
-
-Finally, note that the extended name is stored in Unicode. Each Unicode
-character takes either two or four bytes, UTF-16LE encoded.
diff --git a/Documentation/firmware-guide/acpi/enumeration.rst b/Documentation/firmware-guide/acpi/enumeration.rst
index 0a72b6321f5f..c13fee8b02ba 100644
--- a/Documentation/firmware-guide/acpi/enumeration.rst
+++ b/Documentation/firmware-guide/acpi/enumeration.rst
@@ -71,8 +71,8 @@ DMA support
DMA controllers enumerated via ACPI should be registered in the system to
provide generic access to their resources. For example, a driver that would
like to be accessible to slave devices via generic API call
-dma_request_slave_channel() must register itself at the end of the probe
-function like this::
+dma_request_chan() must register itself at the end of the probe function like
+this::
err = devm_acpi_dma_controller_register(dev, xlate_func, dw);
/* Handle the error if it's not a case of !CONFIG_ACPI */
@@ -112,15 +112,15 @@ could look like::
}
#endif
-dma_request_slave_channel() will call xlate_func() for each registered DMA
-controller. In the xlate function the proper channel must be chosen based on
+dma_request_chan() will call xlate_func() for each registered DMA controller.
+In the xlate function the proper channel must be chosen based on
information in struct acpi_dma_spec and the properties of the controller
provided by struct acpi_dma.
-Clients must call dma_request_slave_channel() with the string parameter that
-corresponds to a specific FixedDMA resource. By default "tx" means the first
-entry of the FixedDMA resource array, "rx" means the second entry. The table
-below shows a layout::
+Clients must call dma_request_chan() with the string parameter that corresponds
+to a specific FixedDMA resource. By default "tx" means the first entry of the
+FixedDMA resource array, "rx" means the second entry. The table below shows a
+layout::
Device (I2C0)
{
diff --git a/Documentation/gpu/drm-internals.rst b/Documentation/gpu/drm-internals.rst
index 966bd2d9f0cc..a73320576ca9 100644
--- a/Documentation/gpu/drm-internals.rst
+++ b/Documentation/gpu/drm-internals.rst
@@ -24,9 +24,9 @@ Driver Initialization
At the core of every DRM driver is a :c:type:`struct drm_driver
<drm_driver>` structure. Drivers typically statically initialize
a drm_driver structure, and then pass it to
-:c:func:`drm_dev_alloc()` to allocate a device instance. After the
+drm_dev_alloc() to allocate a device instance. After the
device instance is fully initialized it can be registered (which makes
-it accessible from userspace) using :c:func:`drm_dev_register()`.
+it accessible from userspace) using drm_dev_register().
The :c:type:`struct drm_driver <drm_driver>` structure
contains static information that describes the driver and features it
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst
index 23a3c986ef6d..906771e03103 100644
--- a/Documentation/gpu/drm-kms.rst
+++ b/Documentation/gpu/drm-kms.rst
@@ -3,7 +3,7 @@ Kernel Mode Setting (KMS)
=========================
Drivers must initialize the mode setting core by calling
-:c:func:`drm_mode_config_init()` on the DRM device. The function
+drm_mode_config_init() on the DRM device. The function
initializes the :c:type:`struct drm_device <drm_device>`
mode_config field and never fails. Once done, mode configuration must
be setup by initializing the following fields.
@@ -181,8 +181,7 @@ Setting`_). The somewhat surprising part here is that properties are not
directly instantiated on each object, but free-standing mode objects themselves,
represented by :c:type:`struct drm_property <drm_property>`, which only specify
the type and value range of a property. Any given property can be attached
-multiple times to different objects using :c:func:`drm_object_attach_property()
-<drm_object_attach_property>`.
+multiple times to different objects using drm_object_attach_property().
.. kernel-doc:: include/drm/drm_mode_object.h
:internal:
@@ -260,7 +259,8 @@ Taken all together there's two consequences for the atomic design:
drm_connector_state <drm_connector_state>` for connectors. These are the only
objects with userspace-visible and settable state. For internal state drivers
can subclass these structures through embeddeding, or add entirely new state
- structures for their globally shared hardware functions.
+ structures for their globally shared hardware functions, see :c:type:`struct
+ drm_private_state<drm_private_state>`.
- An atomic update is assembled and validated as an entirely free-standing pile
of structures within the :c:type:`drm_atomic_state <drm_atomic_state>`
@@ -269,6 +269,14 @@ Taken all together there's two consequences for the atomic design:
to the driver and modeset objects. This way rolling back an update boils down
to releasing memory and unreferencing objects like framebuffers.
+Locking of atomic state structures is internally using :c:type:`struct
+drm_modeset_lock <drm_modeset_lock>`. As a general rule the locking shouldn't be
+exposed to drivers, instead the right locks should be automatically acquired by
+any function that duplicates or peeks into a state, like e.g.
+drm_atomic_get_crtc_state(). Locking only protects the software data
+structure, ordering of committing state changes to hardware is sequenced using
+:c:type:`struct drm_crtc_commit <drm_crtc_commit>`.
+
Read on in this chapter, and also in :ref:`drm_atomic_helper` for more detailed
coverage of specific topics.
@@ -479,6 +487,9 @@ Color Management Properties
.. kernel-doc:: drivers/gpu/drm/drm_color_mgmt.c
:export:
+.. kernel-doc:: include/drm/drm_color_mgmt.h
+ :internal:
+
Tile Group Property
-------------------
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index 59619296c84b..c77b32601260 100644
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -149,19 +149,19 @@ struct :c:type:`struct drm_gem_object <drm_gem_object>`.
To create a GEM object, a driver allocates memory for an instance of its
specific GEM object type and initializes the embedded struct
:c:type:`struct drm_gem_object <drm_gem_object>` with a call
-to :c:func:`drm_gem_object_init()`. The function takes a pointer
+to drm_gem_object_init(). The function takes a pointer
to the DRM device, a pointer to the GEM object and the buffer object
size in bytes.
GEM uses shmem to allocate anonymous pageable memory.
-:c:func:`drm_gem_object_init()` will create an shmfs file of the
+drm_gem_object_init() will create an shmfs file of the
requested size and store it into the struct :c:type:`struct
drm_gem_object <drm_gem_object>` filp field. The memory is
used as either main storage for the object when the graphics hardware
uses system memory directly or as a backing store otherwise.
Drivers are responsible for the actual physical pages allocation by
-calling :c:func:`shmem_read_mapping_page_gfp()` for each page.
+calling shmem_read_mapping_page_gfp() for each page.
Note that they can decide to allocate pages when initializing the GEM
object, or to delay allocation until the memory is needed (for instance
when a page fault occurs as a result of a userspace memory access or
@@ -170,20 +170,18 @@ when the driver needs to start a DMA transfer involving the memory).
Anonymous pageable memory allocation is not always desired, for instance
when the hardware requires physically contiguous system memory as is
often the case in embedded devices. Drivers can create GEM objects with
-no shmfs backing (called private GEM objects) by initializing them with
-a call to :c:func:`drm_gem_private_object_init()` instead of
-:c:func:`drm_gem_object_init()`. Storage for private GEM objects
-must be managed by drivers.
+no shmfs backing (called private GEM objects) by initializing them with a call
+to drm_gem_private_object_init() instead of drm_gem_object_init(). Storage for
+private GEM objects must be managed by drivers.
GEM Objects Lifetime
--------------------
All GEM objects are reference-counted by the GEM core. References can be
-acquired and release by :c:func:`calling drm_gem_object_get()` and
-:c:func:`drm_gem_object_put()` respectively. The caller must hold the
-:c:type:`struct drm_device <drm_device>` struct_mutex lock when calling
-:c:func:`drm_gem_object_get()`. As a convenience, GEM provides
-:c:func:`drm_gem_object_put_unlocked()` functions that can be called without
+acquired and release by calling drm_gem_object_get() and drm_gem_object_put()
+respectively. The caller must hold the :c:type:`struct drm_device <drm_device>`
+struct_mutex lock when calling drm_gem_object_get(). As a convenience, GEM
+provides drm_gem_object_put_unlocked() functions that can be called without
holding the lock.
When the last reference to a GEM object is released the GEM core calls
@@ -194,7 +192,7 @@ free the GEM object and all associated resources.
void (\*gem_free_object) (struct drm_gem_object \*obj); Drivers are
responsible for freeing all GEM object resources. This includes the
resources created by the GEM core, which need to be released with
-:c:func:`drm_gem_object_release()`.
+drm_gem_object_release().
GEM Objects Naming
------------------
@@ -210,13 +208,11 @@ to the GEM object in other standard or driver-specific ioctls. Closing a
DRM file handle frees all its GEM handles and dereferences the
associated GEM objects.
-To create a handle for a GEM object drivers call
-:c:func:`drm_gem_handle_create()`. The function takes a pointer
-to the DRM file and the GEM object and returns a locally unique handle.
-When the handle is no longer needed drivers delete it with a call to
-:c:func:`drm_gem_handle_delete()`. Finally the GEM object
-associated with a handle can be retrieved by a call to
-:c:func:`drm_gem_object_lookup()`.
+To create a handle for a GEM object drivers call drm_gem_handle_create(). The
+function takes a pointer to the DRM file and the GEM object and returns a
+locally unique handle. When the handle is no longer needed drivers delete it
+with a call to drm_gem_handle_delete(). Finally the GEM object associated with a
+handle can be retrieved by a call to drm_gem_object_lookup().
Handles don't take ownership of GEM objects, they only take a reference
to the object that will be dropped when the handle is destroyed. To
@@ -258,7 +254,7 @@ The mmap system call can't be used directly to map GEM objects, as they
don't have their own file handle. Two alternative methods currently
co-exist to map GEM objects to userspace. The first method uses a
driver-specific ioctl to perform the mapping operation, calling
-:c:func:`do_mmap()` under the hood. This is often considered
+do_mmap() under the hood. This is often considered
dubious, seems to be discouraged for new GEM-enabled drivers, and will
thus not be described here.
@@ -267,23 +263,22 @@ The second method uses the mmap system call on the DRM file handle. void
offset); DRM identifies the GEM object to be mapped by a fake offset
passed through the mmap offset argument. Prior to being mapped, a GEM
object must thus be associated with a fake offset. To do so, drivers
-must call :c:func:`drm_gem_create_mmap_offset()` on the object.
+must call drm_gem_create_mmap_offset() on the object.
Once allocated, the fake offset value must be passed to the application
in a driver-specific way and can then be used as the mmap offset
argument.
-The GEM core provides a helper method :c:func:`drm_gem_mmap()` to
+The GEM core provides a helper method drm_gem_mmap() to
handle object mapping. The method can be set directly as the mmap file
operation handler. It will look up the GEM object based on the offset
value and set the VMA operations to the :c:type:`struct drm_driver
-<drm_driver>` gem_vm_ops field. Note that
-:c:func:`drm_gem_mmap()` doesn't map memory to userspace, but
-relies on the driver-provided fault handler to map pages individually.
+<drm_driver>` gem_vm_ops field. Note that drm_gem_mmap() doesn't map memory to
+userspace, but relies on the driver-provided fault handler to map pages
+individually.
-To use :c:func:`drm_gem_mmap()`, drivers must fill the struct
-:c:type:`struct drm_driver <drm_driver>` gem_vm_ops field
-with a pointer to VM operations.
+To use drm_gem_mmap(), drivers must fill the struct :c:type:`struct drm_driver
+<drm_driver>` gem_vm_ops field with a pointer to VM operations.
The VM operations is a :c:type:`struct vm_operations_struct <vm_operations_struct>`
made up of several fields, the more interesting ones being:
@@ -298,9 +293,8 @@ made up of several fields, the more interesting ones being:
The open and close operations must update the GEM object reference
-count. Drivers can use the :c:func:`drm_gem_vm_open()` and
-:c:func:`drm_gem_vm_close()` helper functions directly as open
-and close handlers.
+count. Drivers can use the drm_gem_vm_open() and drm_gem_vm_close() helper
+functions directly as open and close handlers.
The fault operation handler is responsible for mapping individual pages
to userspace when a page fault occurs. Depending on the memory
@@ -312,12 +306,12 @@ Drivers that want to map the GEM object upfront instead of handling page
faults can implement their own mmap file operation handler.
For platforms without MMU the GEM core provides a helper method
-:c:func:`drm_gem_cma_get_unmapped_area`. The mmap() routines will call
-this to get a proposed address for the mapping.
+drm_gem_cma_get_unmapped_area(). The mmap() routines will call this to get a
+proposed address for the mapping.
-To use :c:func:`drm_gem_cma_get_unmapped_area`, drivers must fill the
-struct :c:type:`struct file_operations <file_operations>` get_unmapped_area
-field with a pointer on :c:func:`drm_gem_cma_get_unmapped_area`.
+To use drm_gem_cma_get_unmapped_area(), drivers must fill the struct
+:c:type:`struct file_operations <file_operations>` get_unmapped_area field with
+a pointer on drm_gem_cma_get_unmapped_area().
More detailed information about get_unmapped_area can be found in
Documentation/nommu-mmap.txt
diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst
index 94f90521f58c..56fec6ed1ad8 100644
--- a/Documentation/gpu/drm-uapi.rst
+++ b/Documentation/gpu/drm-uapi.rst
@@ -254,36 +254,45 @@ Validating changes with IGT
There's a collection of tests that aims to cover the whole functionality of
DRM drivers and that can be used to check that changes to DRM drivers or the
core don't regress existing functionality. This test suite is called IGT and
-its code can be found in https://cgit.freedesktop.org/drm/igt-gpu-tools/.
+its code and instructions to build and run can be found in
+https://gitlab.freedesktop.org/drm/igt-gpu-tools/.
-To build IGT, start by installing its build dependencies. In Debian-based
-systems::
+Using VKMS to test DRM API
+--------------------------
- # apt-get build-dep intel-gpu-tools
+VKMS is a software-only model of a KMS driver that is useful for testing
+and for running compositors. VKMS aims to enable a virtual display without
+the need for a hardware display capability. These characteristics made VKMS
+a perfect tool for validating the DRM core behavior and also support the
+compositor developer. VKMS makes it possible to test DRM functions in a
+virtual machine without display, simplifying the validation of some of the
+core changes.
-And in Fedora-based systems::
+To Validate changes in DRM API with VKMS, start setting the kernel: make
+sure to enable VKMS module; compile the kernel with the VKMS enabled and
+install it in the target machine. VKMS can be run in a Virtual Machine
+(QEMU, virtme or similar). It's recommended the use of KVM with the minimum
+of 1GB of RAM and four cores.
- # dnf builddep intel-gpu-tools
+It's possible to run the IGT-tests in a VM in two ways:
-Then clone the repository::
+ 1. Use IGT inside a VM
+ 2. Use IGT from the host machine and write the results in a shared directory.
- $ git clone git://anongit.freedesktop.org/drm/igt-gpu-tools
+As follow, there is an example of using a VM with a shared directory with
+the host machine to run igt-tests. As an example it's used virtme::
-Configure the build system and start the build::
+ $ virtme-run --rwdir /path/for/shared_dir --kdir=path/for/kernel/directory --mods=auto
- $ cd igt-gpu-tools && ./autogen.sh && make -j6
+Run the igt-tests in the guest machine, as example it's ran the 'kms_flip'
+tests::
-Download the piglit dependency::
+ $ /path/for/igt-gpu-tools/scripts/run-tests.sh -p -s -t "kms_flip.*" -v
- $ ./scripts/run-tests.sh -d
-
-And run the tests::
-
- $ ./scripts/run-tests.sh -t kms -t core -s
-
-run-tests.sh is a wrapper around piglit that will execute the tests matching
-the -t options. A report in HTML format will be available in
-./results/html/index.html. Results can be compared with piglit.
+In this example, instead of build the igt_runner, Piglit is used
+(-p option); it's created html summary of the tests results and it's saved
+in the folder "igt-gpu-tools/results"; it's executed only the igt-tests
+matching the -t option.
Display CRC Support
-------------------
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index d0947c5c4ab8..e539c42a3e78 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -466,9 +466,6 @@ GuC-based command submission
.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
:doc: GuC-based command submission
-.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
- :internal:
-
HuC
---
.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_huc.c
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 6792fa9b6b6b..bc869b23fc39 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -142,14 +142,14 @@ Contact: Daniel Vetter, respective driver maintainers
Level: Advanced
-Convert instances of dev_info/dev_err/dev_warn to their DRM_DEV_* equivalent
-----------------------------------------------------------------------------
+Convert logging to drm_* functions with drm_device paramater
+------------------------------------------------------------
For drivers which could have multiple instances, it is necessary to
differentiate between which is which in the logs. Since DRM_INFO/WARN/ERROR
don't do this, drivers used dev_info/warn/err to make this differentiation. We
-now have DRM_DEV_* variants of the drm print macros, so we can start to convert
-those drivers back to using drm-formwatted specific log messages.
+now have drm_* variants of the drm print functions, so we can start to convert
+those drivers back to using drm-formatted specific log messages.
Before you start this conversion please contact the relevant maintainers to make
sure your work will be merged - not everyone agrees that the DRM dmesg macros
@@ -171,23 +171,40 @@ Contact: Maintainer of the driver you plan to convert
Level: Intermediate
-Convert drivers to use drm_fb_helper_fbdev_setup/teardown()
------------------------------------------------------------
+Convert drivers to use drm_fbdev_generic_setup()
+------------------------------------------------
-Most drivers can use drm_fb_helper_fbdev_setup() except maybe:
+Most drivers can use drm_fbdev_generic_setup(). Driver have to implement
+atomic modesetting and GEM vmap support. Current generic fbdev emulation
+expects the framebuffer in system memory (or system-like memory).
-- amdgpu which has special logic to decide whether to call
- drm_helper_disable_unused_functions()
+Contact: Maintainer of the driver you plan to convert
+
+Level: Intermediate
-- armada which isn't atomic and doesn't call
- drm_helper_disable_unused_functions()
+drm_framebuffer_funcs and drm_mode_config_funcs.fb_create cleanup
+-----------------------------------------------------------------
-- i915 which calls drm_fb_helper_initial_config() in a worker
+A lot more drivers could be switched over to the drm_gem_framebuffer helpers.
+Various hold-ups:
-Drivers that use drm_framebuffer_remove() to clean up the fbdev framebuffer can
-probably use drm_fb_helper_fbdev_teardown().
+- Need to switch over to the generic dirty tracking code using
+ drm_atomic_helper_dirtyfb first (e.g. qxl).
-Contact: Maintainer of the driver you plan to convert
+- Need to switch to drm_fbdev_generic_setup(), otherwise a lot of the custom fb
+ setup code can't be deleted.
+
+- Many drivers wrap drm_gem_fb_create() only to check for valid formats. For
+ atomic drivers we could check for valid formats by calling
+ drm_plane_check_pixel_format() against all planes, and pass if any plane
+ supports the format. For non-atomic that's not possible since like the format
+ list for the primary plane is fake and we'd therefor reject valid formats.
+
+- Many drivers subclass drm_framebuffer, we'd need a embedding compatible
+ version of the varios drm_gem_fb_create functions. Maybe called
+ drm_gem_fb_create/_with_dirty/_with_funcs as needed.
+
+Contact: Daniel Vetter
Level: Intermediate
@@ -328,8 +345,8 @@ drm_fb_helper tasks
these igt tests need to be fixed: kms_fbcon_fbt@psr and
kms_fbcon_fbt@psr-suspend.
-- The max connector argument for drm_fb_helper_init() and
- drm_fb_helper_fbdev_setup() isn't used anymore and can be removed.
+- The max connector argument for drm_fb_helper_init() isn't used anymore and
+ can be removed.
- The helper doesn't keep an array of connectors anymore so these can be
removed: drm_fb_helper_single_add_all_connectors(),
@@ -351,6 +368,23 @@ connector register/unregister fixes
Level: Intermediate
+Remove load/unload callbacks from all non-DRIVER_LEGACY drivers
+---------------------------------------------------------------
+
+The load/unload callbacks in struct &drm_driver are very much midlayers, plus
+for historical reasons they get the ordering wrong (and we can't fix that)
+between setting up the &drm_driver structure and calling drm_dev_register().
+
+- Rework drivers to no longer use the load/unload callbacks, directly coding the
+ load/unload sequence into the driver's probe function.
+
+- Once all non-DRIVER_LEGACY drivers are converted, disallow the load/unload
+ callbacks for all modern drivers.
+
+Contact: Daniel Vetter
+
+Level: Intermediate
+
Core refactorings
=================
diff --git a/Documentation/hwmon/adm1177.rst b/Documentation/hwmon/adm1177.rst
new file mode 100644
index 000000000000..c81e0b4abd28
--- /dev/null
+++ b/Documentation/hwmon/adm1177.rst
@@ -0,0 +1,36 @@
+Kernel driver adm1177
+=====================
+
+Supported chips:
+ * Analog Devices ADM1177
+ Prefix: 'adm1177'
+ Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1177.pdf
+
+Author: Beniamin Bia <beniamin.bia@analog.com>
+
+
+Description
+-----------
+
+This driver supports hardware monitoring for Analog Devices ADM1177
+Hot-Swap Controller and Digital Power Monitors with Soft Start Pin.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices for
+details.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Current maxim attribute
+is read-write, all other attributes are read-only.
+
+in0_input Measured voltage in microvolts.
+
+curr1_input Measured current in microamperes.
+curr1_max_alarm Overcurrent alarm in microamperes.
diff --git a/Documentation/hwmon/drivetemp.rst b/Documentation/hwmon/drivetemp.rst
new file mode 100644
index 000000000000..2d37d049247f
--- /dev/null
+++ b/Documentation/hwmon/drivetemp.rst
@@ -0,0 +1,52 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver drivetemp
+=======================
+
+
+References
+----------
+
+ANS T13/1699-D
+Information technology - AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS)
+
+ANS Project T10/BSR INCITS 513
+Information technology - SCSI Primary Commands - 4 (SPC-4)
+
+ANS Project INCITS 557
+Information technology - SCSI / ATA Translation - 5 (SAT-5)
+
+
+Description
+-----------
+
+This driver supports reporting the temperature of disk and solid state
+drives with temperature sensors.
+
+If supported, it uses the ATA SCT Command Transport feature to read
+the current drive temperature and, if available, temperature limits
+as well as historic minimum and maximum temperatures. If SCT Command
+Transport is not supported, the driver uses SMART attributes to read
+the drive temperature.
+
+
+Sysfs entries
+-------------
+
+Only the temp1_input attribute is always available. Other attributes are
+available only if reported by the drive. All temperatures are reported in
+milli-degrees Celsius.
+
+======================= =====================================================
+temp1_input Current drive temperature
+temp1_lcrit Minimum temperature limit. Operating the device below
+ this temperature may cause physical damage to the
+ device.
+temp1_min Minimum recommended continuous operating limit
+temp1_max Maximum recommended continuous operating temperature
+temp1_crit Maximum temperature limit. Operating the device above
+ this temperature may cause physical damage to the
+ device.
+temp1_lowest Minimum temperature seen this power cycle
+temp1_highest Maximum temperature seen this power cycle
+======================= =====================================================
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 43cc605741ea..b24adb67ddca 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -29,6 +29,7 @@ Hardware Monitoring Kernel Drivers
adm1025
adm1026
adm1031
+ adm1177
adm1275
adm9240
ads7828
@@ -47,6 +48,7 @@ Hardware Monitoring Kernel Drivers
da9055
dell-smm-hwmon
dme1737
+ drivetemp
ds1621
ds620
emc1403
@@ -106,8 +108,10 @@ Hardware Monitoring Kernel Drivers
max1619
max1668
max197
+ max20730
max20751
max31722
+ max31730
max31785
max31790
max34440
@@ -177,6 +181,7 @@ Hardware Monitoring Kernel Drivers
wm831x
wm8350
xgene-hwmon
+ xdpe12284
zl6100
.. only:: subproject and html
diff --git a/Documentation/hwmon/max20730.rst b/Documentation/hwmon/max20730.rst
new file mode 100644
index 000000000000..cea7ae58c2f7
--- /dev/null
+++ b/Documentation/hwmon/max20730.rst
@@ -0,0 +1,74 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver max20730
+======================
+
+Supported chips:
+
+ * Maxim MAX20730
+
+ Prefix: 'max20730'
+
+ Addresses scanned: -
+
+ Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20730.pdf
+
+ * Maxim MAX20734
+
+ Prefix: 'max20734'
+
+ Addresses scanned: -
+
+ Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20734.pdf
+
+ * Maxim MAX20743
+
+ Prefix: 'max20743'
+
+ Addresses scanned: -
+
+ Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX20743.pdf
+
+Author: Guenter Roeck <linux@roeck-us.net>
+
+
+Description
+-----------
+
+This driver implements support for Maxim MAX20730, MAX20734, and MAX20743
+Integrated, Step-Down Switching Regulators with PMBus support.
+
+The driver is a client driver to the core PMBus driver.
+Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
+details.
+
+
+Sysfs entries
+-------------
+
+=================== ===== =======================================================
+curr1_crit RW/RO Critical output current. Please see datasheet for
+ supported limits. Read-only if the chip is
+ write protected; read-write otherwise.
+curr1_crit_alarm RO Output current critical alarm
+curr1_input RO Output current
+curr1_label RO 'iout1'
+in1_alarm RO Input voltage alarm
+in1_input RO Input voltage
+in1_label RO 'vin'
+in2_alarm RO Output voltage alarm
+in2_input RO Output voltage
+in2_label RO 'vout1'
+temp1_crit RW/RO Critical temeperature. Supported values are 130 or 150
+ degrees C. Read-only if the chip is write protected;
+ read-write otherwise.
+temp1_crit_alarm RO Temperature critical alarm
+temp1_input RO Chip temperature
+=================== ===== =======================================================
diff --git a/Documentation/hwmon/max31730.rst b/Documentation/hwmon/max31730.rst
new file mode 100644
index 000000000000..def0de19dbd2
--- /dev/null
+++ b/Documentation/hwmon/max31730.rst
@@ -0,0 +1,44 @@
+Kernel driver max31790
+======================
+
+Supported chips:
+
+ * Maxim MAX31730
+
+ Prefix: 'max31730'
+
+ Addresses scanned: 0x1c, 0x1d, 0x1e, 0x1f, 0x4c, 0x4d, 0x4e, 0x4f
+
+ Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31730.pdf
+
+Author: Guenter Roeck <linux@roeck-us.net>
+
+
+Description
+-----------
+
+This driver implements support for Maxim MAX31730.
+
+The MAX31730 temperature sensor monitors its own temperature and the
+temperatures of three external diode-connected transistors. The operating
+supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates
+for high series resistance in circuit-board traces and the external thermal
+diode, while beta compensation corrects for temperature-measurement
+errors due to low-beta sensing transistors.
+
+
+Sysfs entries
+-------------
+
+=================== == =======================================================
+temp[1-4]_enable RW Temperature enable/disable
+ Set to 0 to enable channel, 0 to disable
+temp[1-4]_input RO Temperature input
+temp[2-4]_fault RO Fault indicator for remote channels
+temp[1-4]_max RW Maximum temperature
+temp[1-4]_max_alarm RW Maximum temperature alarm
+temp[1-4]_min RW Minimum temperature. Common for all channels.
+ Only temp1_min is writeable.
+temp[1-4]_min_alarm RO Minimum temperature alarm
+temp[2-4]_offset RW Temperature offset for remote channels
+=================== == =======================================================
diff --git a/Documentation/hwmon/pmbus.rst b/Documentation/hwmon/pmbus.rst
index abfb9dd4857d..f787984e88a9 100644
--- a/Documentation/hwmon/pmbus.rst
+++ b/Documentation/hwmon/pmbus.rst
@@ -63,6 +63,16 @@ Supported chips:
http://www.ti.com/lit/gpn/tps544c25
+ * Maxim MAX20796
+
+ Prefix: 'max20796'
+
+ Addresses scanned: -
+
+ Datasheet:
+
+ Not published
+
* Generic PMBus devices
Prefix: 'pmbus'
diff --git a/Documentation/hwmon/ucd9000.rst b/Documentation/hwmon/ucd9000.rst
index 746f21fcb48c..704f0cbd95d3 100644
--- a/Documentation/hwmon/ucd9000.rst
+++ b/Documentation/hwmon/ucd9000.rst
@@ -3,9 +3,10 @@ Kernel driver ucd9000
Supported chips:
- * TI UCD90120, UCD90124, UCD90160, UCD9090, and UCD90910
+ * TI UCD90120, UCD90124, UCD90160, UCD90320, UCD9090, and UCD90910
- Prefixes: 'ucd90120', 'ucd90124', 'ucd90160', 'ucd9090', 'ucd90910'
+ Prefixes: 'ucd90120', 'ucd90124', 'ucd90160', 'ucd90320', 'ucd9090',
+ 'ucd90910'
Addresses scanned: -
@@ -14,6 +15,7 @@ Supported chips:
- http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90160.pdf
+ - http://focus.ti.com/lit/ds/symlink/ucd90320.pdf
- http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
- http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
@@ -45,6 +47,12 @@ power-on reset signals, external interrupts, cascading, or other system
functions. Twelve of these pins offer PWM functionality. Using these pins, the
UCD90160 offers support for margining, and general-purpose PWM functions.
+The UCD90320 is a 32-rail PMBus/I2C addressable power-supply sequencer and
+monitor. The 24 integrated ADC channels (AMONx) monitor the power supply
+voltage, current, and temperature. Of the 84 GPIO pins, 8 can be used as
+digital monitors (DMONx), 32 to enable the power supply (ENx), 24 for margining
+(MARx), 16 for logical GPO, and 32 GPIs for cascading, and system function.
+
The UCD9090 is a 10-rail PMBus/I2C addressable power-supply sequencer and
monitor. The device integrates a 12-bit ADC for monitoring up to 10 power-supply
voltage inputs. Twenty-three GPIO pins can be used for power supply enables,
diff --git a/Documentation/hwmon/xdpe12284.rst b/Documentation/hwmon/xdpe12284.rst
new file mode 100644
index 000000000000..6b7ae98cc536
--- /dev/null
+++ b/Documentation/hwmon/xdpe12284.rst
@@ -0,0 +1,101 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver xdpe122
+=====================
+
+Supported chips:
+
+ * Infineon XDPE12254
+
+ Prefix: 'xdpe12254'
+
+ * Infineon XDPE12284
+
+ Prefix: 'xdpe12284'
+
+Authors:
+
+ Vadim Pasternak <vadimp@mellanox.com>
+
+Description
+-----------
+
+This driver implements support for Infineon Multi-phase XDPE122 family
+dual loop voltage regulators.
+The family includes XDPE12284 and XDPE12254 devices.
+The devices from this family complaint with:
+- Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC
+ converter specification.
+- Intel SVID rev 1.9. protocol.
+- PMBus rev 1.3 interface.
+
+Devices support linear format for reading input voltage, input and output current,
+input and output power and temperature.
+Device supports VID format for reading output voltage. The below modes are
+supported:
+- VR12.0 mode, 5-mV DAC - 0x01.
+- VR12.5 mode, 10-mV DAC - 0x02.
+- IMVP9 mode, 5-mV DAC - 0x03.
+- AMD mode 6.25mV - 0x10.
+
+Devices support two pages for telemetry.
+
+The driver provides for current: input, maximum and critical thresholds
+and maximum and critical alarms. Critical thresholds and critical alarm are
+supported only for current output.
+The driver exports the following attributes for via the sysfs files, where
+indexes 1, 2 are for "iin" and 3, 4 for "iout":
+
+**curr[3-4]_crit**
+
+**curr[3-4]_crit_alarm**
+
+**curr[1-4]_input**
+
+**curr[1-4]_label**
+
+**curr[1-4]_max**
+
+**curr[1-4]_max_alarm**
+
+The driver provides for voltage: input, critical and low critical thresholds
+and critical and low critical alarms.
+The driver exports the following attributes for via the sysfs files, where
+indexes 1, 2 are for "vin" and 3, 4 for "vout":
+
+**in[1-4]_crit**
+
+**in[1-4_crit_alarm**
+
+**in[1-4]_input**
+
+**in[1-4_label**
+
+**in[1-4]_lcrit**
+
+**in[1-41_lcrit_alarm**
+
+The driver provides for power: input and alarms. Power alarm is supported only
+for power input.
+The driver exports the following attributes for via the sysfs files, where
+indexes 1, 2 are for "pin" and 3, 4 for "pout":
+
+**power[1-2]_alarm**
+
+**power[1-4]_input**
+
+**power[1-4]_label**
+
+The driver provides for temperature: input, maximum and critical thresholds
+and maximum and critical alarms.
+The driver exports the following attributes for via the sysfs files:
+
+**temp[1-2]_crit**
+
+**temp[1-2]_crit_alarm**
+
+**temp[1-2]_input**
+
+**temp[1-2]_max**
+
+**temp[1-2]_max_alarm**
diff --git a/Documentation/isdn/avmb1.rst b/Documentation/isdn/avmb1.rst
deleted file mode 100644
index de3961e67553..000000000000
--- a/Documentation/isdn/avmb1.rst
+++ /dev/null
@@ -1,246 +0,0 @@
-================================
-Driver for active AVM Controller
-================================
-
-The driver provides a kernel capi2.0 Interface (kernelcapi) and
-on top of this a User-Level-CAPI2.0-interface (capi)
-and a driver to connect isdn4linux with CAPI2.0 (capidrv).
-The lowlevel interface can be used to implement a CAPI2.0
-also for passive cards since July 1999.
-
-The author can be reached at calle@calle.in-berlin.de.
-The command avmcapictrl is part of the isdn4k-utils.
-t4-files can be found at ftp://ftp.avm.de/cardware/b1/linux/firmware
-
-Currently supported cards:
-
- - B1 ISA (all versions)
- - B1 PCI
- - T1/T1B (HEMA card)
- - M1
- - M2
- - B1 PCMCIA
-
-Installing
-----------
-
-You need at least /dev/capi20 to load the firmware.
-
-::
-
- mknod /dev/capi20 c 68 0
- mknod /dev/capi20.00 c 68 1
- mknod /dev/capi20.01 c 68 2
- .
- .
- .
- mknod /dev/capi20.19 c 68 20
-
-Running
--------
-
-To use the card you need the t4-files to download the firmware.
-AVM GmbH provides several t4-files for the different D-channel
-protocols (b1.t4 for Euro-ISDN). Install these file in /lib/isdn.
-
-if you configure as modules load the modules this way::
-
- insmod /lib/modules/current/misc/capiutil.o
- insmod /lib/modules/current/misc/b1.o
- insmod /lib/modules/current/misc/kernelcapi.o
- insmod /lib/modules/current/misc/capidrv.o
- insmod /lib/modules/current/misc/capi.o
-
-if you have an B1-PCI card load the module b1pci.o::
-
- insmod /lib/modules/current/misc/b1pci.o
-
-and load the firmware with::
-
- avmcapictrl load /lib/isdn/b1.t4 1
-
-if you have an B1-ISA card load the module b1isa.o
-and add the card by calling::
-
- avmcapictrl add 0x150 15
-
-and load the firmware by calling::
-
- avmcapictrl load /lib/isdn/b1.t4 1
-
-if you have an T1-ISA card load the module t1isa.o
-and add the card by calling::
-
- avmcapictrl add 0x450 15 T1 0
-
-and load the firmware by calling::
-
- avmcapictrl load /lib/isdn/t1.t4 1
-
-if you have an PCMCIA card (B1/M1/M2) load the module b1pcmcia.o
-before you insert the card.
-
-Leased Lines with B1
---------------------
-
-Init card and load firmware.
-
-For an D64S use "FV: 1" as phone number
-
-For an D64S2 use "FV: 1" and "FV: 2" for multilink
-or "FV: 1,2" to use CAPI channel bundling.
-
-/proc-Interface
------------------
-
-/proc/capi::
-
- dr-xr-xr-x 2 root root 0 Jul 1 14:03 .
- dr-xr-xr-x 82 root root 0 Jun 30 19:08 ..
- -r--r--r-- 1 root root 0 Jul 1 14:03 applications
- -r--r--r-- 1 root root 0 Jul 1 14:03 applstats
- -r--r--r-- 1 root root 0 Jul 1 14:03 capi20
- -r--r--r-- 1 root root 0 Jul 1 14:03 capidrv
- -r--r--r-- 1 root root 0 Jul 1 14:03 controller
- -r--r--r-- 1 root root 0 Jul 1 14:03 contrstats
- -r--r--r-- 1 root root 0 Jul 1 14:03 driver
- -r--r--r-- 1 root root 0 Jul 1 14:03 ncci
- -r--r--r-- 1 root root 0 Jul 1 14:03 users
-
-/proc/capi/applications:
- applid level3cnt datablkcnt datablklen ncci-cnt recvqueuelen
- level3cnt:
- capi_register parameter
- datablkcnt:
- capi_register parameter
- ncci-cnt:
- current number of nccis (connections)
- recvqueuelen:
- number of messages on receive queue
-
- for example::
-
- 1 -2 16 2048 1 0
- 2 2 7 2048 1 0
-
-/proc/capi/applstats:
- applid recvctlmsg nrecvdatamsg nsentctlmsg nsentdatamsg
- recvctlmsg:
- capi messages received without DATA_B3_IND
- recvdatamsg:
- capi DATA_B3_IND received
- sentctlmsg:
- capi messages sent without DATA_B3_REQ
- sentdatamsg:
- capi DATA_B3_REQ sent
-
- for example::
-
- 1 2057 1699 1721 1699
-
-/proc/capi/capi20: statistics of capi.o (/dev/capi20)
- minor nopen nrecvdropmsg nrecvctlmsg nrecvdatamsg sentctlmsg sentdatamsg
- minor:
- minor device number of capi device
- nopen:
- number of calls to devices open
- nrecvdropmsg:
- capi messages dropped (messages in recvqueue in close)
- nrecvctlmsg:
- capi messages received without DATA_B3_IND
- nrecvdatamsg:
- capi DATA_B3_IND received
- nsentctlmsg:
- capi messages sent without DATA_B3_REQ
- nsentdatamsg:
- capi DATA_B3_REQ sent
-
- for example::
-
- 1 2 18 0 16 2
-
-/proc/capi/capidrv: statistics of capidrv.o (capi messages)
- nrecvctlmsg nrecvdatamsg sentctlmsg sentdatamsg
- nrecvctlmsg:
- capi messages received without DATA_B3_IND
- nrecvdatamsg:
- capi DATA_B3_IND received
- nsentctlmsg:
- capi messages sent without DATA_B3_REQ
- nsentdatamsg:
- capi DATA_B3_REQ sent
-
- for example:
- 2780 2226 2256 2226
-
-/proc/capi/controller:
- controller drivername state cardname controllerinfo
-
- for example::
-
- 1 b1pci running b1pci-e000 B1 3.07-01 0xe000 19
- 2 t1isa running t1isa-450 B1 3.07-01 0x450 11 0
- 3 b1pcmcia running m2-150 B1 3.07-01 0x150 5
-
-/proc/capi/contrstats:
- controller nrecvctlmsg nrecvdatamsg sentctlmsg sentdatamsg
- nrecvctlmsg:
- capi messages received without DATA_B3_IND
- nrecvdatamsg:
- capi DATA_B3_IND received
- nsentctlmsg:
- capi messages sent without DATA_B3_REQ
- nsentdatamsg:
- capi DATA_B3_REQ sent
-
- for example::
-
- 1 2845 2272 2310 2274
- 2 2 0 2 0
- 3 2 0 2 0
-
-/proc/capi/driver:
- drivername ncontroller
-
- for example::
-
- b1pci 1
- t1isa 1
- b1pcmcia 1
- b1isa 0
-
-/proc/capi/ncci:
- apllid ncci winsize sendwindow
-
- for example::
-
- 1 0x10101 8 0
-
-/proc/capi/users: kernelmodules that use the kernelcapi.
- name
-
- for example::
-
- capidrv
- capi20
-
-Questions
----------
-
-Check out the FAQ (ftp.isdn4linux.de) or subscribe to the
-linux-avmb1@calle.in-berlin.de mailing list by sending
-a mail to majordomo@calle.in-berlin.de with
-subscribe linux-avmb1
-in the body.
-
-German documentation and several scripts can be found at
-ftp://ftp.avm.de/cardware/b1/linux/
-
-Bugs
-----
-
-If you find any please let me know.
-
-Enjoy,
-
-Carsten Paeth (calle@calle.in-berlin.de)
diff --git a/Documentation/isdn/gigaset.rst b/Documentation/isdn/gigaset.rst
deleted file mode 100644
index 98b4ec521c51..000000000000
--- a/Documentation/isdn/gigaset.rst
+++ /dev/null
@@ -1,465 +0,0 @@
-==========================
-GigaSet 307x Device Driver
-==========================
-
-1. Requirements
-=================
-
-1.1. Hardware
--------------
-
- This driver supports the connection of the Gigaset 307x/417x family of
- ISDN DECT bases via Gigaset M101 Data, Gigaset M105 Data or direct USB
- connection. The following devices are reported to be compatible:
-
- Bases:
- - Siemens Gigaset 3070/3075 isdn
- - Siemens Gigaset 4170/4175 isdn
- - Siemens Gigaset SX205/255
- - Siemens Gigaset SX353
- - T-Com Sinus 45 [AB] isdn
- - T-Com Sinus 721X[A] [SE]
- - Vox Chicago 390 ISDN (KPN Telecom)
-
- RS232 data boxes:
- - Siemens Gigaset M101 Data
- - T-Com Sinus 45 Data 1
-
- USB data boxes:
- - Siemens Gigaset M105 Data
- - Siemens Gigaset USB Adapter DECT
- - T-Com Sinus 45 Data 2
- - T-Com Sinus 721 data
- - Chicago 390 USB (KPN)
-
- See also http://www.erbze.info/sinus_gigaset.htm
- (archived at https://web.archive.org/web/20100717020421/http://www.erbze.info:80/sinus_gigaset.htm ) and
- http://gigaset307x.sourceforge.net/
-
- We had also reports from users of Gigaset M105 who could use the drivers
- with SX 100 and CX 100 ISDN bases (only in unimodem mode, see section 2.5.)
- If you have another device that works with our driver, please let us know.
-
- Chances of getting an USB device to work are good if the output of::
-
- lsusb
-
- at the command line contains one of the following::
-
- ID 0681:0001
- ID 0681:0002
- ID 0681:0009
- ID 0681:0021
- ID 0681:0022
-
-1.2. Software
--------------
-
- The driver works with the Kernel CAPI subsystem and can be used with any
- software which is able to use CAPI 2.0 for ISDN connections (voice or data).
-
- There are some user space tools available at
- https://sourceforge.net/projects/gigaset307x/
- which provide access to additional device specific functions like SMS,
- phonebook or call journal.
-
-
-2. How to use the driver
-==========================
-
-2.1. Modules
-------------
-
- For the devices to work, the proper kernel modules have to be loaded.
- This normally happens automatically when the system detects the USB
- device (base, M105) or when the line discipline is attached (M101). It
- can also be triggered manually using the modprobe(8) command, for example
- for troubleshooting or to pass module parameters.
-
- The module ser_gigaset provides a serial line discipline N_GIGASET_M101
- which uses the regular serial port driver to access the device, and must
- therefore be attached to the serial device to which the M101 is connected.
- The ldattach(8) command (included in util-linux-ng release 2.14 or later)
- can be used for that purpose, for example::
-
- ldattach GIGASET_M101 /dev/ttyS1
-
- This will open the device file, attach the line discipline to it, and
- then sleep in the background, keeping the device open so that the line
- discipline remains active. To deactivate it, kill the daemon, for example
- with::
-
- killall ldattach
-
- before disconnecting the device. To have this happen automatically at
- system startup/shutdown on an LSB compatible system, create and activate
- an appropriate LSB startup script /etc/init.d/gigaset. (The init name
- 'gigaset' is officially assigned to this project by LANANA.)
- Alternatively, just add the 'ldattach' command line to /etc/rc.local.
-
- The modules accept the following parameters:
-
- =============== ========== ==========================================
- Module Parameter Meaning
-
- gigaset debug debug level (see section 3.2.)
-
- startmode initial operation mode (see section 2.5.):
- bas_gigaset ) 1=CAPI (default), 0=Unimodem
- ser_gigaset )
- usb_gigaset ) cidmode initial Call-ID mode setting (see section
- 2.5.): 1=on (default), 0=off
-
- =============== ========== ==========================================
-
- Depending on your distribution you may want to create a separate module
- configuration file like /etc/modprobe.d/gigaset.conf for these.
-
-2.2. Device nodes for user space programs
------------------------------------------
-
- The device can be accessed from user space (eg. by the user space tools
- mentioned in 1.2.) through the device nodes:
-
- - /dev/ttyGS0 for M101 (RS232 data boxes)
- - /dev/ttyGU0 for M105 (USB data boxes)
- - /dev/ttyGB0 for the base driver (direct USB connection)
-
- If you connect more than one device of a type, they will get consecutive
- device nodes, eg. /dev/ttyGU1 for a second M105.
-
- You can also set a "default device" for the user space tools to use when
- no device node is given as parameter, by creating a symlink /dev/ttyG to
- one of them, eg.::
-
- ln -s /dev/ttyGB0 /dev/ttyG
-
- The devices accept the following device specific ioctl calls
- (defined in gigaset_dev.h):
-
- ``ioctl(int fd, GIGASET_REDIR, int *cmd);``
-
- If cmd==1, the device is set to be controlled exclusively through the
- character device node; access from the ISDN subsystem is blocked.
-
- If cmd==0, the device is set to be used from the ISDN subsystem and does
- not communicate through the character device node.
-
- ``ioctl(int fd, GIGASET_CONFIG, int *cmd);``
-
- (ser_gigaset and usb_gigaset only)
-
- If cmd==1, the device is set to adapter configuration mode where commands
- are interpreted by the M10x DECT adapter itself instead of being
- forwarded to the base station. In this mode, the device accepts the
- commands described in Siemens document "AT-Kommando Alignment M10x Data"
- for setting the operation mode, associating with a base station and
- querying parameters like field strengh and signal quality.
-
- Note that there is no ioctl command for leaving adapter configuration
- mode and returning to regular operation. In order to leave adapter
- configuration mode, write the command ATO to the device.
-
- ``ioctl(int fd, GIGASET_BRKCHARS, unsigned char brkchars[6]);``
-
- (usb_gigaset only)
-
- Set the break characters on an M105's internal serial adapter to the six
- bytes stored in brkchars[]. Unused bytes should be set to zero.
-
- ioctl(int fd, GIGASET_VERSION, unsigned version[4]);
- Retrieve version information from the driver. version[0] must be set to
- one of:
-
- - GIGVER_DRIVER: retrieve driver version
- - GIGVER_COMPAT: retrieve interface compatibility version
- - GIGVER_FWBASE: retrieve the firmware version of the base
-
- Upon return, version[] is filled with the requested version information.
-
-2.3. CAPI
----------
-
- The devices will show up as CAPI controllers as soon as the
- corresponding driver module is loaded, and can then be used with
- CAPI 2.0 kernel and user space applications. For user space access,
- the module capi.ko must be loaded.
-
- Most distributions handle loading and unloading of the various CAPI
- modules automatically via the command capiinit(1) from the capi4k-utils
- package or a similar mechanism. Note that capiinit(1) cannot unload the
- Gigaset drivers because it doesn't support more than one module per
- driver.
-
-2.5. Unimodem mode
-------------------
-
- In this mode the device works like a modem connected to a serial port
- (the /dev/ttyGU0, ... mentioned above) which understands the commands::
-
- ATZ init, reset
- => OK or ERROR
- ATD
- ATDT dial
- => OK, CONNECT,
- BUSY,
- NO DIAL TONE,
- NO CARRIER,
- NO ANSWER
- <pause>+++<pause> change to command mode when connected
- ATH hangup
-
- You can use some configuration tool of your distribution to configure this
- "modem" or configure pppd/wvdial manually. There are some example ppp
- configuration files and chat scripts in the gigaset-VERSION/ppp directory
- in the driver packages from https://sourceforge.net/projects/gigaset307x/.
- Please note that the USB drivers are not able to change the state of the
- control lines. This means you must use "Stupid Mode" if you are using
- wvdial or you should use the nocrtscts option of pppd.
- You must also assure that the ppp_async module is loaded with the parameter
- flag_time=0. You can do this e.g. by adding a line like::
-
- options ppp_async flag_time=0
-
- to an appropriate module configuration file, like::
-
- /etc/modprobe.d/gigaset.conf.
-
- Unimodem mode is needed for making some devices [e.g. SX100] work which
- do not support the regular Gigaset command set. If debug output (see
- section 3.2.) shows something like this when dialing::
-
- CMD Received: ERROR
- Available Params: 0
- Connection State: 0, Response: -1
- gigaset_process_response: resp_code -1 in ConState 0 !
- Timeout occurred
-
- then switching to unimodem mode may help.
-
- If you have installed the command line tool gigacontr, you can enter
- unimodem mode using::
-
- gigacontr --mode unimodem
-
- You can switch back using::
-
- gigacontr --mode isdn
-
- You can also put the driver directly into Unimodem mode when it's loaded,
- by passing the module parameter startmode=0 to the hardware specific
- module, e.g.::
-
- modprobe usb_gigaset startmode=0
-
- or by adding a line like::
-
- options usb_gigaset startmode=0
-
- to an appropriate module configuration file, like::
-
- /etc/modprobe.d/gigaset.conf
-
-2.6. Call-ID (CID) mode
------------------------
-
- Call-IDs are numbers used to tag commands to, and responses from, the
- Gigaset base in order to support the simultaneous handling of multiple
- ISDN calls. Their use can be enabled ("CID mode") or disabled ("Unimodem
- mode"). Without Call-IDs (in Unimodem mode), only a very limited set of
- functions is available. It allows outgoing data connections only, but
- does not signal incoming calls or other base events.
-
- DECT cordless data devices (M10x) permanently occupy the cordless
- connection to the base while Call-IDs are activated. As the Gigaset
- bases only support one DECT data connection at a time, this prevents
- other DECT cordless data devices from accessing the base.
-
- During active operation, the driver switches to the necessary mode
- automatically. However, for the reasons above, the mode chosen when
- the device is not in use (idle) can be selected by the user.
-
- - If you want to receive incoming calls, you can use the default
- settings (CID mode).
- - If you have several DECT data devices (M10x) which you want to use
- in turn, select Unimodem mode by passing the parameter "cidmode=0" to
- the appropriate driver module (ser_gigaset or usb_gigaset).
-
- If you want both of these at once, you are out of luck.
-
- You can also use the tty class parameter "cidmode" of the device to
- change its CID mode while the driver is loaded, eg.::
-
- echo 0 > /sys/class/tty/ttyGU0/cidmode
-
-2.7. Dialing Numbers
---------------------
-provided by an application for dialing out must
- be a public network number according to the local dialing plan, without
- any dial prefix for getting an outside line.
-
- Internal calls can be made by providing an internal extension number
- prefixed with ``**`` (two asterisks) as the called party number. So to dial
- eg. the first registered DECT handset, give ``**11`` as the called party
- number. Dialing ``***`` (three asterisks) calls all extensions
- simultaneously (global call).
-
- Unimodem mode does not support internal calls.
-
-2.8. Unregistered Wireless Devices (M101/M105)
-----------------------------------------------
-
- The main purpose of the ser_gigaset and usb_gigaset drivers is to allow
- the M101 and M105 wireless devices to be used as ISDN devices for ISDN
- connections through a Gigaset base. Therefore they assume that the device
- is registered to a DECT base.
-
- If the M101/M105 device is not registered to a base, initialization of
- the device fails, and a corresponding error message is logged by the
- driver. In that situation, a restricted set of functions is available
- which includes, in particular, those necessary for registering the device
- to a base or for switching it between Fixed Part and Portable Part
- modes. See the gigacontr(8) manpage for details.
-
-3. Troubleshooting
-====================
-
-3.1. Solutions to frequently reported problems
-----------------------------------------------
-
- Problem:
- You have a slow provider and isdn4linux gives up dialing too early.
- Solution:
- Load the isdn module using the dialtimeout option. You can do this e.g.
- by adding a line like::
-
- options isdn dialtimeout=15
-
- to /etc/modprobe.d/gigaset.conf or a similar file.
-
- Problem:
- The isdnlog program emits error messages or just doesn't work.
- Solution:
- Isdnlog supports only the HiSax driver. Do not attempt to use it with
- other drivers such as Gigaset.
-
- Problem:
- You have two or more DECT data adapters (M101/M105) and only the
- first one you turn on works.
- Solution:
- Select Unimodem mode for all DECT data adapters. (see section 2.5.)
-
- Problem:
- Messages like this::
-
- usb_gigaset 3-2:1.0: Could not initialize the device.
-
- appear in your syslog.
- Solution:
- Check whether your M10x wireless device is correctly registered to the
- Gigaset base. (see section 2.7.)
-
-3.2. Telling the driver to provide more information
----------------------------------------------------
- Building the driver with the "Gigaset debugging" kernel configuration
- option (CONFIG_GIGASET_DEBUG) gives it the ability to produce additional
- information useful for debugging.
-
- You can control the amount of debugging information the driver produces by
- writing an appropriate value to /sys/module/gigaset/parameters/debug,
- e.g.::
-
- echo 0 > /sys/module/gigaset/parameters/debug
-
- switches off debugging output completely,
-
- ::
-
- echo 0x302020 > /sys/module/gigaset/parameters/debug
-
- enables a reasonable set of debugging output messages. These values are
- bit patterns where every bit controls a certain type of debugging output.
- See the constants DEBUG_* in the source file gigaset.h for details.
-
- The initial value can be set using the debug parameter when loading the
- module "gigaset", e.g. by adding a line::
-
- options gigaset debug=0
-
- to your module configuration file, eg. /etc/modprobe.d/gigaset.conf
-
- Generated debugging information can be found
- - as output of the command::
-
- dmesg
-
- - in system log files written by your syslog daemon, usually
- in /var/log/, e.g. /var/log/messages.
-
-3.3. Reporting problems and bugs
---------------------------------
- If you can't solve problems with the driver on your own, feel free to
- use one of the forums, bug trackers, or mailing lists on
-
- https://sourceforge.net/projects/gigaset307x
-
- or write an electronic mail to the maintainers.
-
- Try to provide as much information as possible, such as
-
- - distribution
- - kernel version (uname -r)
- - gcc version (gcc --version)
- - hardware architecture (uname -m, ...)
- - type and firmware version of your device (base and wireless module,
- if any)
- - output of "lsusb -v" (if using an USB device)
- - error messages
- - relevant system log messages (it would help if you activate debug
- output as described in 3.2.)
-
- For help with general configuration problems not specific to our driver,
- such as isdn4linux and network configuration issues, please refer to the
- appropriate forums and newsgroups.
-
-3.4. Reporting problem solutions
---------------------------------
- If you solved a problem with our drivers, wrote startup scripts for your
- distribution, ... feel free to contact us (using one of the places
- mentioned in 3.3.). We'd like to add scripts, hints, documentation
- to the driver and/or the project web page.
-
-
-4. Links, other software
-==========================
-
- - Sourceforge project developing this driver and associated tools
- https://sourceforge.net/projects/gigaset307x
- - Yahoo! Group on the Siemens Gigaset family of devices
- https://de.groups.yahoo.com/group/Siemens-Gigaset
- - Siemens Gigaset/T-Sinus compatibility table
- http://www.erbze.info/sinus_gigaset.htm
- (archived at https://web.archive.org/web/20100717020421/http://www.erbze.info:80/sinus_gigaset.htm )
-
-
-5. Credits
-============
-
- Thanks to
-
- Karsten Keil
- for his help with isdn4linux
- Deti Fliegl
- for his base driver code
- Dennis Dietrich
- for his kernel 2.6 patches
- Andreas Rummel
- for his work and logs to get unimodem mode working
- Andreas Degert
- for his logs and patches to get cx 100 working
- Dietrich Feist
- for his generous donation of one M105 and two M101 cordless adapters
- Christoph Schweers
- for his generous donation of a M34 device
-
- and all the other people who sent logs and other information.
diff --git a/Documentation/isdn/hysdn.rst b/Documentation/isdn/hysdn.rst
deleted file mode 100644
index 0a168d1cbffc..000000000000
--- a/Documentation/isdn/hysdn.rst
+++ /dev/null
@@ -1,196 +0,0 @@
-============
-Hysdn Driver
-============
-
-The hysdn driver has been written by
-Werner Cornelius (werner@isdn4linux.de or werner@titro.de)
-for Hypercope GmbH Aachen Germany. Hypercope agreed to publish this driver
-under the GNU General Public License.
-
-The CAPI 2.0-support was added by Ulrich Albrecht (ualbrecht@hypercope.de)
-for Hypercope GmbH Aachen, Germany.
-
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-.. Table of contents
-
- 1. About the driver
-
- 2. Loading/Unloading the driver
-
- 3. Entries in the /proc filesystem
-
- 4. The /proc/net/hysdn/cardconfX file
-
- 5. The /proc/net/hysdn/cardlogX file
-
- 6. Where to get additional info and help
-
-
-1. About the driver
-===================
-
- The drivers/isdn/hysdn subdir contains a driver for HYPERCOPEs active
- PCI isdn cards Champ, Ergo and Metro. To enable support for this cards
- enable ISDN support in the kernel config and support for HYSDN cards in
- the active cards submenu. The driver may only be compiled and used if
- support for loadable modules and the process filesystem have been enabled.
-
- These cards provide two different interfaces to the kernel. Without the
- optional CAPI 2.0 support, they register as ethernet card. IP-routing
- to a ISDN-destination is performed on the card itself. All necessary
- handlers for various protocols like ppp and others as well as config info
- and firmware may be fetched from Hypercopes WWW-Site www.hypercope.de.
-
- With CAPI 2.0 support enabled, the card can also be used as a CAPI 2.0
- compliant devices with either CAPI 2.0 applications
- (check isdn4k-utils) or -using the capidrv module- as a regular
- isdn4linux device. This is done via the same mechanism as with the
- active AVM cards and in fact uses the same module.
-
-
-2. Loading/Unloading the driver
-===============================
-
- The module has no command line parameters and auto detects up to 10 cards
- in the id-range 0-9.
- If a loaded driver shall be unloaded all open files in the /proc/net/hysdn
- subdir need to be closed and all ethernet interfaces allocated by this
- driver must be shut down. Otherwise the module counter will avoid a module
- unload.
-
- If you are using the CAPI 2.0-interface, make sure to load/modprobe the
- kernelcapi-module first.
-
- If you plan to use the capidrv-link to isdn4linux, make sure to load
- capidrv.o after all modules using this driver (i.e. after hysdn and
- any avm-specific modules).
-
-3. Entries in the /proc filesystem
-==================================
-
- When the module has been loaded it adds the directory hysdn in the
- /proc/net tree. This directory contains exactly 2 file entries for each
- card. One is called cardconfX and the other cardlogX, where X is the
- card id number from 0 to 9.
- The cards are numbered in the order found in the PCI config data.
-
-4. The /proc/net/hysdn/cardconfX file
-=====================================
-
- This file may be read to get by everyone to get info about the cards type,
- actual state, available features and used resources.
- The first 3 entries (id, bus and slot) are PCI info fields, the following
- type field gives the information about the cards type:
-
- - 4 -> Ergo card (server card with 2 b-chans)
- - 5 -> Metro card (server card with 4 or 8 b-chans)
- - 6 -> Champ card (client card with 2 b-chans)
-
- The following 3 fields show the hardware assignments for irq, iobase and the
- dual ported memory (dp-mem).
-
- The fields b-chans and fax-chans announce the available card resources of
- this types for the user.
-
- The state variable indicates the actual drivers state for this card with the
- following assignments.
-
- - 0 -> card has not been booted since driver load
- - 1 -> card booting is actually in progess
- - 2 -> card is in an error state due to a previous boot failure
- - 3 -> card is booted and active
-
- And the last field (device) shows the name of the ethernet device assigned
- to this card. Up to the first successful boot this field only shows a -
- to tell that no net device has been allocated up to now. Once a net device
- has been allocated it remains assigned to this card, even if a card is
- rebooted and an boot error occurs.
-
- Writing to the cardconfX file boots the card or transfers config lines to
- the cards firmware. The type of data is automatically detected when the
- first data is written. Only root has write access to this file.
- The firmware boot files are normally called hyclient.pof for client cards
- and hyserver.pof for server cards.
- After successfully writing the boot file, complete config files or single
- config lines may be copied to this file.
- If an error occurs the return value given to the writing process has the
- following additional codes (decimal):
-
- ==== ============================================
- 1000 Another process is currently bootng the card
- 1001 Invalid firmware header
- 1002 Boards dual-port RAM test failed
- 1003 Internal firmware handler error
- 1004 Boot image size invalid
- 1005 First boot stage (bootstrap loader) failed
- 1006 Second boot stage failure
- 1007 Timeout waiting for card ready during boot
- 1008 Operation only allowed in booted state
- 1009 Config line too long
- 1010 Invalid channel number
- 1011 Timeout sending config data
- ==== ============================================
-
- Additional info about error reasons may be fetched from the log output.
-
-5. The /proc/net/hysdn/cardlogX file
-====================================
-
- The cardlogX file entry may be opened multiple for reading by everyone to
- get the cards and drivers log data. Card messages always start with the
- keyword LOG. All other lines are output from the driver.
- The driver log data may be redirected to the syslog by selecting the
- appropriate bitmask. The cards log messages will always be send to this
- interface but never to the syslog.
-
- A root user may write a decimal or hex (with 0x) value t this file to select
- desired output options. As mentioned above the cards log dat is always
- written to the cardlog file independent of the following options only used
- to check and debug the driver itself:
-
- For example::
-
- echo "0x34560078" > /proc/net/hysdn/cardlog0
-
- to output the hex log mask 34560078 for card 0.
-
- The written value is regarded as an unsigned 32-Bit value, bit ored for
- desired output. The following bits are already assigned:
-
- ========== ============================================================
- 0x80000000 All driver log data is alternatively via syslog
- 0x00000001 Log memory allocation errors
- 0x00000010 Firmware load start and close are logged
- 0x00000020 Log firmware record parser
- 0x00000040 Log every firmware write actions
- 0x00000080 Log all card related boot messages
- 0x00000100 Output all config data sent for debugging purposes
- 0x00000200 Only non comment config lines are shown wth channel
- 0x00000400 Additional conf log output
- 0x00001000 Log the asynchronous scheduler actions (config and log)
- 0x00100000 Log all open and close actions to /proc/net/hysdn/card files
- 0x00200000 Log all actions from /proc file entries
- 0x00010000 Log network interface init and deinit
- ========== ============================================================
-
-6. Where to get additional info and help
-========================================
-
- If you have any problems concerning the driver or configuration contact
- the Hypercope support team (support@hypercope.de) and or the authors
- Werner Cornelius (werner@isdn4linux or cornelius@titro.de) or
- Ulrich Albrecht (ualbrecht@hypercope.de).
diff --git a/Documentation/isdn/index.rst b/Documentation/isdn/index.rst
index 407e74b78372..9622939fa526 100644
--- a/Documentation/isdn/index.rst
+++ b/Documentation/isdn/index.rst
@@ -9,9 +9,6 @@ ISDN
interface_capi
- avmb1
- gigaset
- hysdn
m_isdn
credits
diff --git a/Documentation/isdn/interface_capi.rst b/Documentation/isdn/interface_capi.rst
index 01a4b5ade9a4..fe2421444b76 100644
--- a/Documentation/isdn/interface_capi.rst
+++ b/Documentation/isdn/interface_capi.rst
@@ -26,13 +26,6 @@ This standard is freely available from https://www.capi.org.
2. Driver and Device Registration
=================================
-CAPI drivers optionally register themselves with Kernel CAPI by calling the
-Kernel CAPI function register_capi_driver() with a pointer to a struct
-capi_driver. This structure must be filled with the name and revision of the
-driver, and optionally a pointer to a callback function, add_card(). The
-registration can be revoked by calling the function unregister_capi_driver()
-with a pointer to the same struct capi_driver.
-
CAPI drivers must register each of the ISDN devices they control with Kernel
CAPI by calling the Kernel CAPI function attach_capi_ctr() with a pointer to a
struct capi_ctr before they can be used. This structure must be filled with
@@ -89,9 +82,6 @@ register_capi_driver():
the name of the driver, as a zero-terminated ASCII string
``char revision[32]``
the revision number of the driver, as a zero-terminated ASCII string
-``int (*add_card)(struct capi_driver *driver, capicardparams *data)``
- a callback function pointer (may be NULL)
-
4.2 struct capi_ctr
-------------------
@@ -178,12 +168,6 @@ to be set by the driver before calling attach_capi_ctr():
pointer to a callback function returning the entry for the device in
the CAPI controller info table, /proc/capi/controller
-``const struct file_operations *proc_fops``
- pointers to callback functions for the device's proc file
- system entry, /proc/capi/controllers/<n>; pointer to the device's
- capi_ctr structure is available from struct proc_dir_entry::data
- which is available from struct inode.
-
Note:
Callback functions except send_message() are never called in interrupt
context.
@@ -267,25 +251,10 @@ _cmstruct alternative representation for CAPI parameters of type 'struct'
_cmsg structure members.
=========== =================================================================
-Functions capi_cmsg2message() and capi_message2cmsg() are provided to convert
-messages between their transport encoding described in the CAPI 2.0 standard
-and their _cmsg structure representation. Note that capi_cmsg2message() does
-not know or check the size of its destination buffer. The caller must make
-sure it is big enough to accommodate the resulting CAPI message.
-
5. Lower Layer Interface Functions
==================================
-(declared in <linux/isdn/capilli.h>)
-
-::
-
- void register_capi_driver(struct capi_driver *drvr)
- void unregister_capi_driver(struct capi_driver *drvr)
-
-register/unregister a driver with Kernel CAPI
-
::
int attach_capi_ctr(struct capi_ctr *ctrlr)
@@ -302,13 +271,6 @@ signal controller ready/not ready
::
- void capi_ctr_suspend_output(struct capi_ctr *ctrlr)
- void capi_ctr_resume_output(struct capi_ctr *ctrlr)
-
-signal suspend/resume
-
-::
-
void capi_ctr_handle_message(struct capi_ctr * ctrlr, u16 applid,
struct sk_buff *skb)
@@ -319,21 +281,6 @@ for forwarding to the specified application
6. Helper Functions and Macros
==============================
-Library functions (from <linux/isdn/capilli.h>):
-
-::
-
- void capilib_new_ncci(struct list_head *head, u16 applid,
- u32 ncci, u32 winsize)
- void capilib_free_ncci(struct list_head *head, u16 applid, u32 ncci)
- void capilib_release_appl(struct list_head *head, u16 applid)
- void capilib_release(struct list_head *head)
- void capilib_data_b3_conf(struct list_head *head, u16 applid,
- u32 ncci, u16 msgid)
- u16 capilib_data_b3_req(struct list_head *head, u16 applid,
- u32 ncci, u16 msgid)
-
-
Macros to extract/set element values from/in a CAPI message header
(from <linux/isdn/capiutil.h>):
@@ -357,24 +304,6 @@ CAPIMSG_DATALEN(m) CAPIMSG_SETDATALEN(m, len) Data Length (u16)
Library functions for working with _cmsg structures
(from <linux/isdn/capiutil.h>):
-``unsigned capi_cmsg2message(_cmsg *cmsg, u8 *msg)``
- Assembles a CAPI 2.0 message from the parameters in ``*cmsg``,
- storing the result in ``*msg``.
-
-``unsigned capi_message2cmsg(_cmsg *cmsg, u8 *msg)``
- Disassembles the CAPI 2.0 message in ``*msg``, storing the parameters
- in ``*cmsg``.
-
-``unsigned capi_cmsg_header(_cmsg *cmsg, u16 ApplId, u8 Command, u8 Subcommand, u16 Messagenumber, u32 Controller)``
- Fills the header part and address field of the _cmsg structure ``*cmsg``
- with the given values, zeroing the remainder of the structure so only
- parameters with non-default values need to be changed before sending
- the message.
-
-``void capi_cmsg_answer(_cmsg *cmsg)``
- Sets the low bit of the Subcommand field in ``*cmsg``, thereby
- converting ``_REQ`` to ``_CONF`` and ``_IND`` to ``_RESP``.
-
``char *capi_cmd2str(u8 Command, u8 Subcommand)``
Returns the CAPI 2.0 message name corresponding to the given command
and subcommand values, as a static ASCII string. The return value may
diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst
index 74bef19f69f0..231e6a64957f 100644
--- a/Documentation/kbuild/kconfig-language.rst
+++ b/Documentation/kbuild/kconfig-language.rst
@@ -196,14 +196,11 @@ applicable everywhere (see syntax).
or equal to the first symbol and smaller than or equal to the second
symbol.
-- help text: "help" or "---help---"
+- help text: "help"
This defines a help text. The end of the help text is determined by
the indentation level, this means it ends at the first line which has
a smaller indentation than the first line of the help text.
- "---help---" and "help" do not differ in behaviour, "---help---" is
- used to help visually separate configuration logic from help within
- the file as an aid to developers.
- misc options: "option" <symbol>[=<value>]
diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst
index b9b50553bfc5..d7e6534a8505 100644
--- a/Documentation/kbuild/makefiles.rst
+++ b/Documentation/kbuild/makefiles.rst
@@ -297,9 +297,19 @@ more details, with real examples.
If CONFIG_EXT2_FS is set to either 'y' (built-in) or 'm' (modular)
the corresponding obj- variable will be set, and kbuild will descend
down in the ext2 directory.
- Kbuild only uses this information to decide that it needs to visit
- the directory, it is the Makefile in the subdirectory that
- specifies what is modular and what is built-in.
+
+ Kbuild uses this information not only to decide that it needs to visit
+ the directory, but also to decide whether or not to link objects from
+ the directory into vmlinux.
+
+ When Kbuild descends into the directory with 'y', all built-in objects
+ from that directory are combined into the built-in.a, which will be
+ eventually linked into vmlinux.
+
+ When Kbuild descends into the directory with 'm', in contrast, nothing
+ from that directory will be linked into vmlinux. If the Makefile in
+ that directory specifies obj-y, those objects will be left orphan.
+ It is very likely a bug of the Makefile or of dependencies in Kconfig.
It is good practice to use a `CONFIG_` variable when assigning directory
names. This allows kbuild to totally skip the directory if the
diff --git a/Documentation/kernel-hacking/hacking.rst b/Documentation/kernel-hacking/hacking.rst
index a3ddb213a5e1..d62aacb2822a 100644
--- a/Documentation/kernel-hacking/hacking.rst
+++ b/Documentation/kernel-hacking/hacking.rst
@@ -601,7 +601,7 @@ Defined in ``include/linux/export.h``
This is the variant of `EXPORT_SYMBOL()` that allows specifying a symbol
namespace. Symbol Namespaces are documented in
-``Documentation/kbuild/namespaces.rst``.
+``Documentation/core-api/symbol-namespaces.rst``.
:c:func:`EXPORT_SYMBOL_NS_GPL()`
--------------------------------
@@ -610,7 +610,7 @@ Defined in ``include/linux/export.h``
This is the variant of `EXPORT_SYMBOL_GPL()` that allows specifying a symbol
namespace. Symbol Namespaces are documented in
-``Documentation/kbuild/namespaces.rst``.
+``Documentation/core-api/symbol-namespaces.rst``.
Routines and Conventions
========================
diff --git a/Documentation/locking/locktorture.rst b/Documentation/locking/locktorture.rst
index e79eeeca3ac6..5bcb99ba7bd9 100644
--- a/Documentation/locking/locktorture.rst
+++ b/Documentation/locking/locktorture.rst
@@ -103,8 +103,7 @@ stat_interval
Number of seconds between statistics-related printk()s.
By default, locktorture will report stats every 60 seconds.
Setting the interval to zero causes the statistics to
- be printed -only- when the module is unloaded, and this
- is the default.
+ be printed -only- when the module is unloaded.
stutter
The length of time to run the test before pausing for this
diff --git a/Documentation/maintainer/maintainer-entry-profile.rst b/Documentation/maintainer/maintainer-entry-profile.rst
index 3eaddc8ac56d..11ebe3682771 100644
--- a/Documentation/maintainer/maintainer-entry-profile.rst
+++ b/Documentation/maintainer/maintainer-entry-profile.rst
@@ -99,4 +99,5 @@ to do something different in the near future.
.. toctree::
:maxdepth: 1
+ ../doc-guide/maintainer-profile
../nvdimm/maintainer-entry-profile
diff --git a/Documentation/media/v4l-drivers/meye.rst b/Documentation/media/v4l-drivers/meye.rst
index a572996cdbf6..dc57a6a91b43 100644
--- a/Documentation/media/v4l-drivers/meye.rst
+++ b/Documentation/media/v4l-drivers/meye.rst
@@ -95,7 +95,7 @@ so all video4linux tools (like xawtv) should work with this driver.
Besides the video4linux interface, the driver has a private interface
for accessing the Motion Eye extended parameters (camera sharpness,
-agc, video framerate), the shapshot and the MJPEG capture facilities.
+agc, video framerate), the snapshot and the MJPEG capture facilities.
This interface consists of several ioctls (prototypes and structures
can be found in include/linux/meye.h):
diff --git a/Documentation/misc-devices/xilinx_sdfec.rst b/Documentation/misc-devices/xilinx_sdfec.rst
index 2245fcfa224d..7a47075c171c 100644
--- a/Documentation/misc-devices/xilinx_sdfec.rst
+++ b/Documentation/misc-devices/xilinx_sdfec.rst
@@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0+
+
====================
Xilinx SD-FEC Driver
====================
diff --git a/Documentation/networking/device_drivers/index.rst b/Documentation/networking/device_drivers/index.rst
index c1f7f75e5fd9..a191faaf97de 100644
--- a/Documentation/networking/device_drivers/index.rst
+++ b/Documentation/networking/device_drivers/index.rst
@@ -22,9 +22,11 @@ Contents:
intel/iavf
intel/ice
google/gve
+ marvell/octeontx2
mellanox/mlx5
netronome/nfp
pensando/ionic
+ stmicro/stmmac
.. only:: subproject and html
diff --git a/Documentation/networking/device_drivers/marvell/octeontx2.rst b/Documentation/networking/device_drivers/marvell/octeontx2.rst
new file mode 100644
index 000000000000..88f508338c5f
--- /dev/null
+++ b/Documentation/networking/device_drivers/marvell/octeontx2.rst
@@ -0,0 +1,159 @@
+.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+====================================
+Marvell OcteonTx2 RVU Kernel Drivers
+====================================
+
+Copyright (c) 2020 Marvell International Ltd.
+
+Contents
+========
+
+- `Overview`_
+- `Drivers`_
+- `Basic packet flow`_
+
+Overview
+========
+
+Resource virtualization unit (RVU) on Marvell's OcteonTX2 SOC maps HW
+resources from the network, crypto and other functional blocks into
+PCI-compatible physical and virtual functions. Each functional block
+again has multiple local functions (LFs) for provisioning to PCI devices.
+RVU supports multiple PCIe SRIOV physical functions (PFs) and virtual
+functions (VFs). PF0 is called the administrative / admin function (AF)
+and has privileges to provision RVU functional block's LFs to each of the
+PF/VF.
+
+RVU managed networking functional blocks
+ - Network pool or buffer allocator (NPA)
+ - Network interface controller (NIX)
+ - Network parser CAM (NPC)
+ - Schedule/Synchronize/Order unit (SSO)
+ - Loopback interface (LBK)
+
+RVU managed non-networking functional blocks
+ - Crypto accelerator (CPT)
+ - Scheduled timers unit (TIM)
+ - Schedule/Synchronize/Order unit (SSO)
+ Used for both networking and non networking usecases
+
+Resource provisioning examples
+ - A PF/VF with NIX-LF & NPA-LF resources works as a pure network device
+ - A PF/VF with CPT-LF resource works as a pure crypto offload device.
+
+RVU functional blocks are highly configurable as per software requirements.
+
+Firmware setups following stuff before kernel boots
+ - Enables required number of RVU PFs based on number of physical links.
+ - Number of VFs per PF are either static or configurable at compile time.
+ Based on config, firmware assigns VFs to each of the PFs.
+ - Also assigns MSIX vectors to each of PF and VFs.
+ - These are not changed after kernel boot.
+
+Drivers
+=======
+
+Linux kernel will have multiple drivers registering to different PF and VFs
+of RVU. Wrt networking there will be 3 flavours of drivers.
+
+Admin Function driver
+---------------------
+
+As mentioned above RVU PF0 is called the admin function (AF), this driver
+supports resource provisioning and configuration of functional blocks.
+Doesn't handle any I/O. It sets up few basic stuff but most of the
+funcionality is achieved via configuration requests from PFs and VFs.
+
+PF/VFs communicates with AF via a shared memory region (mailbox). Upon
+receiving requests AF does resource provisioning and other HW configuration.
+AF is always attached to host kernel, but PFs and their VFs may be used by host
+kernel itself, or attached to VMs or to userspace applications like
+DPDK etc. So AF has to handle provisioning/configuration requests sent
+by any device from any domain.
+
+AF driver also interacts with underlying firmware to
+ - Manage physical ethernet links ie CGX LMACs.
+ - Retrieve information like speed, duplex, autoneg etc
+ - Retrieve PHY EEPROM and stats.
+ - Configure FEC, PAM modes
+ - etc
+
+From pure networking side AF driver supports following functionality.
+ - Map a physical link to a RVU PF to which a netdev is registered.
+ - Attach NIX and NPA block LFs to RVU PF/VF which provide buffer pools, RQs, SQs
+ for regular networking functionality.
+ - Flow control (pause frames) enable/disable/config.
+ - HW PTP timestamping related config.
+ - NPC parser profile config, basically how to parse pkt and what info to extract.
+ - NPC extract profile config, what to extract from the pkt to match data in MCAM entries.
+ - Manage NPC MCAM entries, upon request can frame and install requested packet forwarding rules.
+ - Defines receive side scaling (RSS) algorithms.
+ - Defines segmentation offload algorithms (eg TSO)
+ - VLAN stripping, capture and insertion config.
+ - SSO and TIM blocks config which provide packet scheduling support.
+ - Debugfs support, to check current resource provising, current status of
+ NPA pools, NIX RQ, SQ and CQs, various stats etc which helps in debugging issues.
+ - And many more.
+
+Physical Function driver
+------------------------
+
+This RVU PF handles IO, is mapped to a physical ethernet link and this
+driver registers a netdev. This supports SR-IOV. As said above this driver
+communicates with AF with a mailbox. To retrieve information from physical
+links this driver talks to AF and AF gets that info from firmware and responds
+back ie cannot talk to firmware directly.
+
+Supports ethtool for configuring links, RSS, queue count, queue size,
+flow control, ntuple filters, dump PHY EEPROM, config FEC etc.
+
+Virtual Function driver
+-----------------------
+
+There are two types VFs, VFs that share the physical link with their parent
+SR-IOV PF and the VFs which work in pairs using internal HW loopback channels (LBK).
+
+Type1:
+ - These VFs and their parent PF share a physical link and used for outside communication.
+ - VFs cannot communicate with AF directly, they send mbox message to PF and PF
+ forwards that to AF. AF after processing, responds back to PF and PF forwards
+ the reply to VF.
+ - From functionality point of view there is no difference between PF and VF as same type
+ HW resources are attached to both. But user would be able to configure few stuff only
+ from PF as PF is treated as owner/admin of the link.
+
+Type2:
+ - RVU PF0 ie admin function creates these VFs and maps them to loopback block's channels.
+ - A set of two VFs (VF0 & VF1, VF2 & VF3 .. so on) works as a pair ie pkts sent out of
+ VF0 will be received by VF1 and viceversa.
+ - These VFs can be used by applications or virtual machines to communicate between them
+ without sending traffic outside. There is no switch present in HW, hence the support
+ for loopback VFs.
+ - These communicate directly with AF (PF0) via mbox.
+
+Except for the IO channels or links used for packet reception and transmission there is
+no other difference between these VF types. AF driver takes care of IO channel mapping,
+hence same VF driver works for both types of devices.
+
+Basic packet flow
+=================
+
+Ingress
+-------
+
+1. CGX LMAC receives packet.
+2. Forwards the packet to the NIX block.
+3. Then submitted to NPC block for parsing and then MCAM lookup to get the destination RVU device.
+4. NIX LF attached to the destination RVU device allocates a buffer from RQ mapped buffer pool of NPA block LF.
+5. RQ may be selected by RSS or by configuring MCAM rule with a RQ number.
+6. Packet is DMA'ed and driver is notified.
+
+Egress
+------
+
+1. Driver prepares a send descriptor and submits to SQ for transmission.
+2. The SQ is already configured (by AF) to transmit on a specific link/channel.
+3. The SQ descriptor ring is maintained in buffers allocated from SQ mapped pool of NPA block LF.
+4. NIX block transmits the pkt on the designated channel.
+5. NPC MCAM entries can be installed to divert pkt onto a different channel.
diff --git a/Documentation/networking/device_drivers/microsoft/netvsc.txt b/Documentation/networking/device_drivers/microsoft/netvsc.txt
index 3bfa635bbbd5..cd63556b27a0 100644
--- a/Documentation/networking/device_drivers/microsoft/netvsc.txt
+++ b/Documentation/networking/device_drivers/microsoft/netvsc.txt
@@ -82,3 +82,24 @@ Features
contain one or more packets. The send buffer is an optimization, the driver
will use slower method to handle very large packets or if the send buffer
area is exhausted.
+
+ XDP support
+ -----------
+ XDP (eXpress Data Path) is a feature that runs eBPF bytecode at the early
+ stage when packets arrive at a NIC card. The goal is to increase performance
+ for packet processing, reducing the overhead of SKB allocation and other
+ upper network layers.
+
+ hv_netvsc supports XDP in native mode, and transparently sets the XDP
+ program on the associated VF NIC as well.
+
+ Setting / unsetting XDP program on synthetic NIC (netvsc) propagates to
+ VF NIC automatically. Setting / unsetting XDP program on VF NIC directly
+ is not recommended, also not propagated to synthetic NIC, and may be
+ overwritten by setting of synthetic NIC.
+
+ XDP program cannot run with LRO (RSC) enabled, so you need to disable LRO
+ before running XDP:
+ ethtool -K eth0 lro off
+
+ XDP_REDIRECT action is not yet supported.
diff --git a/Documentation/networking/device_drivers/netronome/nfp.rst b/Documentation/networking/device_drivers/netronome/nfp.rst
index 6c08ac8b5147..ada611fb427c 100644
--- a/Documentation/networking/device_drivers/netronome/nfp.rst
+++ b/Documentation/networking/device_drivers/netronome/nfp.rst
@@ -131,3 +131,119 @@ abi_drv_reset
abi_drv_load_ifc
Defines a list of PF devices allowed to load FW on the device.
This variable is not currently user configurable.
+
+Statistics
+==========
+
+Following device statistics are available through the ``ethtool -S`` interface:
+
+.. flat-table:: NFP device statistics
+ :header-rows: 1
+ :widths: 3 1 11
+
+ * - Name
+ - ID
+ - Meaning
+
+ * - dev_rx_discards
+ - 1
+ - Packet can be discarded on the RX path for one of the following reasons:
+
+ * The NIC is not in promisc mode, and the destination MAC address
+ doesn't match the interfaces' MAC address.
+ * The received packet is larger than the max buffer size on the host.
+ I.e. it exceeds the Layer 3 MRU.
+ * There is no freelist descriptor available on the host for the packet.
+ It is likely that the NIC couldn't cache one in time.
+ * A BPF program discarded the packet.
+ * The datapath drop action was executed.
+ * The MAC discarded the packet due to lack of ingress buffer space
+ on the NIC.
+
+ * - dev_rx_errors
+ - 2
+ - A packet can be counted (and dropped) as RX error for the following
+ reasons:
+
+ * A problem with the VEB lookup (only when SR-IOV is used).
+ * A physical layer problem that causes Ethernet errors, like FCS or
+ alignment errors. The cause is usually faulty cables or SFPs.
+
+ * - dev_rx_bytes
+ - 3
+ - Total number of bytes received.
+
+ * - dev_rx_uc_bytes
+ - 4
+ - Unicast bytes received.
+
+ * - dev_rx_mc_bytes
+ - 5
+ - Multicast bytes received.
+
+ * - dev_rx_bc_bytes
+ - 6
+ - Broadcast bytes received.
+
+ * - dev_rx_pkts
+ - 7
+ - Total number of packets received.
+
+ * - dev_rx_mc_pkts
+ - 8
+ - Multicast packets received.
+
+ * - dev_rx_bc_pkts
+ - 9
+ - Broadcast packets received.
+
+ * - dev_tx_discards
+ - 10
+ - A packet can be discarded in the TX direction if the MAC is
+ being flow controlled and the NIC runs out of TX queue space.
+
+ * - dev_tx_errors
+ - 11
+ - A packet can be counted as TX error (and dropped) for one for the
+ following reasons:
+
+ * The packet is an LSO segment, but the Layer 3 or Layer 4 offset
+ could not be determined. Therefore LSO could not continue.
+ * An invalid packet descriptor was received over PCIe.
+ * The packet Layer 3 length exceeds the device MTU.
+ * An error on the MAC/physical layer. Usually due to faulty cables or
+ SFPs.
+ * A CTM buffer could not be allocated.
+ * The packet offset was incorrect and could not be fixed by the NIC.
+
+ * - dev_tx_bytes
+ - 12
+ - Total number of bytes transmitted.
+
+ * - dev_tx_uc_bytes
+ - 13
+ - Unicast bytes transmitted.
+
+ * - dev_tx_mc_bytes
+ - 14
+ - Multicast bytes transmitted.
+
+ * - dev_tx_bc_bytes
+ - 15
+ - Broadcast bytes transmitted.
+
+ * - dev_tx_pkts
+ - 16
+ - Total number of packets transmitted.
+
+ * - dev_tx_mc_pkts
+ - 17
+ - Multicast packets transmitted.
+
+ * - dev_tx_bc_pkts
+ - 18
+ - Broadcast packets transmitted.
+
+Note that statistics unknown to the driver will be displayed as
+``dev_unknown_stat$ID``, where ``$ID`` refers to the second column
+above.
diff --git a/Documentation/networking/device_drivers/stmicro/stmmac.rst b/Documentation/networking/device_drivers/stmicro/stmmac.rst
new file mode 100644
index 000000000000..c34bab3d2df0
--- /dev/null
+++ b/Documentation/networking/device_drivers/stmicro/stmmac.rst
@@ -0,0 +1,697 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+==============================================================
+Linux Driver for the Synopsys(R) Ethernet Controllers "stmmac"
+==============================================================
+
+Authors: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
+Alexandre Torgue <alexandre.torgue@st.com>, Jose Abreu <joabreu@synopsys.com>
+
+Contents
+========
+
+- In This Release
+- Feature List
+- Kernel Configuration
+- Command Line Parameters
+- Driver Information and Notes
+- Debug Information
+- Support
+
+In This Release
+===============
+
+This file describes the stmmac Linux Driver for all the Synopsys(R) Ethernet
+Controllers.
+
+Currently, this network device driver is for all STi embedded MAC/GMAC
+(i.e. 7xxx/5xxx SoCs), SPEAr (arm), Loongson1B (mips) and XILINX XC2V3000
+FF1152AMT0221 D1215994A VIRTEX FPGA board. The Synopsys Ethernet QoS 5.0 IPK
+is also supported.
+
+DesignWare(R) Cores Ethernet MAC 10/100/1000 Universal version 3.70a
+(and older) and DesignWare(R) Cores Ethernet Quality-of-Service version 4.0
+(and upper) have been used for developing this driver as well as
+DesignWare(R) Cores XGMAC - 10G Ethernet MAC.
+
+This driver supports both the platform bus and PCI.
+
+This driver includes support for the following Synopsys(R) DesignWare(R)
+Cores Ethernet Controllers and corresponding minimum and maximum versions:
+
++-------------------------------+--------------+--------------+--------------+
+| Controller Name | Min. Version | Max. Version | Abbrev. Name |
++===============================+==============+==============+==============+
+| Ethernet MAC Universal | N/A | 3.73a | GMAC |
++-------------------------------+--------------+--------------+--------------+
+| Ethernet Quality-of-Service | 4.00a | N/A | GMAC4+ |
++-------------------------------+--------------+--------------+--------------+
+| XGMAC - 10G Ethernet MAC | 2.10a | N/A | XGMAC2+ |
++-------------------------------+--------------+--------------+--------------+
+
+For questions related to hardware requirements, refer to the documentation
+supplied with your Ethernet adapter. All hardware requirements listed apply
+to use with Linux.
+
+Feature List
+============
+
+The following features are available in this driver:
+ - GMII/MII/RGMII/SGMII/RMII/XGMII Interface
+ - Half-Duplex / Full-Duplex Operation
+ - Energy Efficient Ethernet (EEE)
+ - IEEE 802.3x PAUSE Packets (Flow Control)
+ - RMON/MIB Counters
+ - IEEE 1588 Timestamping (PTP)
+ - Pulse-Per-Second Output (PPS)
+ - MDIO Clause 22 / Clause 45 Interface
+ - MAC Loopback
+ - ARP Offloading
+ - Automatic CRC / PAD Insertion and Checking
+ - Checksum Offload for Received and Transmitted Packets
+ - Standard or Jumbo Ethernet Packets
+ - Source Address Insertion / Replacement
+ - VLAN TAG Insertion / Replacement / Deletion / Filtering (HASH and PERFECT)
+ - Programmable TX and RX Watchdog and Coalesce Settings
+ - Destination Address Filtering (PERFECT)
+ - HASH Filtering (Multicast)
+ - Layer 3 / Layer 4 Filtering
+ - Remote Wake-Up Detection
+ - Receive Side Scaling (RSS)
+ - Frame Preemption for TX and RX
+ - Programmable Burst Length, Threshold, Queue Size
+ - Multiple Queues (up to 8)
+ - Multiple Scheduling Algorithms (TX: WRR, DWRR, WFQ, SP, CBS, EST, TBS;
+ RX: WRR, SP)
+ - Flexible RX Parser
+ - TCP / UDP Segmentation Offload (TSO, USO)
+ - Split Header (SPH)
+ - Safety Features (ECC Protection, Data Parity Protection)
+ - Selftests using Ethtool
+
+Kernel Configuration
+====================
+
+The kernel configuration option is ``CONFIG_STMMAC_ETH``:
+ - ``CONFIG_STMMAC_PLATFORM``: is to enable the platform driver.
+ - ``CONFIG_STMMAC_PCI``: is to enable the pci driver.
+
+Command Line Parameters
+=======================
+
+If the driver is built as a module the following optional parameters are used
+by entering them on the command line with the modprobe command using this
+syntax (e.g. for PCI module)::
+
+ modprobe stmmac_pci [<option>=<VAL1>,<VAL2>,...]
+
+Driver parameters can be also passed in command line by using::
+
+ stmmaceth=watchdog:100,chain_mode=1
+
+The default value for each parameter is generally the recommended setting,
+unless otherwise noted.
+
+watchdog
+--------
+:Valid Range: 5000-None
+:Default Value: 5000
+
+This parameter overrides the transmit timeout in milliseconds.
+
+debug
+-----
+:Valid Range: 0-16 (0=none,...,16=all)
+:Default Value: 0
+
+This parameter adjusts the level of debug messages displayed in the system
+logs.
+
+phyaddr
+-------
+:Valid Range: 0-31
+:Default Value: -1
+
+This parameter overrides the physical address of the PHY device.
+
+flow_ctrl
+---------
+:Valid Range: 0-3 (0=off,1=rx,2=tx,3=rx/tx)
+:Default Value: 3
+
+This parameter changes the default Flow Control ability.
+
+pause
+-----
+:Valid Range: 0-65535
+:Default Value: 65535
+
+This parameter changes the default Flow Control Pause time.
+
+tc
+--
+:Valid Range: 64-256
+:Default Value: 64
+
+This parameter changes the default HW FIFO Threshold control value.
+
+buf_sz
+------
+:Valid Range: 1536-16384
+:Default Value: 1536
+
+This parameter changes the default RX DMA packet buffer size.
+
+eee_timer
+---------
+:Valid Range: 0-None
+:Default Value: 1000
+
+This parameter changes the default LPI TX Expiration time in milliseconds.
+
+chain_mode
+----------
+:Valid Range: 0-1 (0=off,1=on)
+:Default Value: 0
+
+This parameter changes the default mode of operation from Ring Mode to
+Chain Mode.
+
+Driver Information and Notes
+============================
+
+Transmit Process
+----------------
+
+The xmit method is invoked when the kernel needs to transmit a packet; it sets
+the descriptors in the ring and informs the DMA engine that there is a packet
+ready to be transmitted.
+
+By default, the driver sets the ``NETIF_F_SG`` bit in the features field of
+the ``net_device`` structure, enabling the scatter-gather feature. This is
+true on chips and configurations where the checksum can be done in hardware.
+
+Once the controller has finished transmitting the packet, timer will be
+scheduled to release the transmit resources.
+
+Receive Process
+---------------
+
+When one or more packets are received, an interrupt happens. The interrupts
+are not queued, so the driver has to scan all the descriptors in the ring
+during the receive process.
+
+This is based on NAPI, so the interrupt handler signals only if there is work
+to be done, and it exits. Then the poll method will be scheduled at some
+future point.
+
+The incoming packets are stored, by the DMA, in a list of pre-allocated socket
+buffers in order to avoid the memcpy (zero-copy).
+
+Interrupt Mitigation
+--------------------
+
+The driver is able to mitigate the number of its DMA interrupts using NAPI for
+the reception on chips older than the 3.50. New chips have an HW RX Watchdog
+used for this mitigation.
+
+Mitigation parameters can be tuned by ethtool.
+
+WoL
+---
+
+Wake up on Lan feature through Magic and Unicast frames are supported for the
+GMAC, GMAC4/5 and XGMAC core.
+
+DMA Descriptors
+---------------
+
+Driver handles both normal and alternate descriptors. The latter has been only
+tested on DesignWare(R) Cores Ethernet MAC Universal version 3.41a and later.
+
+stmmac supports DMA descriptor to operate both in dual buffer (RING) and
+linked-list(CHAINED) mode. In RING each descriptor points to two data buffer
+pointers whereas in CHAINED mode they point to only one data buffer pointer.
+RING mode is the default.
+
+In CHAINED mode each descriptor will have pointer to next descriptor in the
+list, hence creating the explicit chaining in the descriptor itself, whereas
+such explicit chaining is not possible in RING mode.
+
+Extended Descriptors
+--------------------
+
+The extended descriptors give us information about the Ethernet payload when
+it is carrying PTP packets or TCP/UDP/ICMP over IP. These are not available on
+GMAC Synopsys(R) chips older than the 3.50. At probe time the driver will
+decide if these can be actually used. This support also is mandatory for PTPv2
+because the extra descriptors are used for saving the hardware timestamps and
+Extended Status.
+
+Ethtool Support
+---------------
+
+Ethtool is supported. For example, driver statistics (including RMON),
+internal errors can be taken using::
+
+ ethtool -S ethX
+
+Ethtool selftests are also supported. This allows to do some early sanity
+checks to the HW using MAC and PHY loopback mechanisms::
+
+ ethtool -t ethX
+
+Jumbo and Segmentation Offloading
+---------------------------------
+
+Jumbo frames are supported and tested for the GMAC. The GSO has been also
+added but it's performed in software. LRO is not supported.
+
+TSO Support
+-----------
+
+TSO (TCP Segmentation Offload) feature is supported by GMAC > 4.x and XGMAC
+chip family. When a packet is sent through TCP protocol, the TCP stack ensures
+that the SKB provided to the low level driver (stmmac in our case) matches
+with the maximum frame len (IP header + TCP header + payload <= 1500 bytes
+(for MTU set to 1500)). It means that if an application using TCP want to send
+a packet which will have a length (after adding headers) > 1514 the packet
+will be split in several TCP packets: The data payload is split and headers
+(TCP/IP ..) are added. It is done by software.
+
+When TSO is enabled, the TCP stack doesn't care about the maximum frame length
+and provide SKB packet to stmmac as it is. The GMAC IP will have to perform
+the segmentation by it self to match with maximum frame length.
+
+This feature can be enabled in device tree through ``snps,tso`` entry.
+
+Energy Efficient Ethernet
+-------------------------
+
+Energy Efficient Ethernet (EEE) enables IEEE 802.3 MAC sublayer along with a
+family of Physical layer to operate in the Low Power Idle (LPI) mode. The EEE
+mode supports the IEEE 802.3 MAC operation at 100Mbps, 1000Mbps and 1Gbps.
+
+The LPI mode allows power saving by switching off parts of the communication
+device functionality when there is no data to be transmitted & received.
+The system on both the side of the link can disable some functionalities and
+save power during the period of low-link utilization. The MAC controls whether
+the system should enter or exit the LPI mode and communicate this to PHY.
+
+As soon as the interface is opened, the driver verifies if the EEE can be
+supported. This is done by looking at both the DMA HW capability register and
+the PHY devices MCD registers.
+
+To enter in TX LPI mode the driver needs to have a software timer that enable
+and disable the LPI mode when there is nothing to be transmitted.
+
+Precision Time Protocol (PTP)
+-----------------------------
+
+The driver supports the IEEE 1588-2002, Precision Time Protocol (PTP), which
+enables precise synchronization of clocks in measurement and control systems
+implemented with technologies such as network communication.
+
+In addition to the basic timestamp features mentioned in IEEE 1588-2002
+Timestamps, new GMAC cores support the advanced timestamp features.
+IEEE 1588-2008 can be enabled when configuring the Kernel.
+
+SGMII/RGMII Support
+-------------------
+
+New GMAC devices provide own way to manage RGMII/SGMII. This information is
+available at run-time by looking at the HW capability register. This means
+that the stmmac can manage auto-negotiation and link status w/o using the
+PHYLIB stuff. In fact, the HW provides a subset of extended registers to
+restart the ANE, verify Full/Half duplex mode and Speed. Thanks to these
+registers, it is possible to look at the Auto-negotiated Link Parter Ability.
+
+Physical
+--------
+
+The driver is compatible with Physical Abstraction Layer to be connected with
+PHY and GPHY devices.
+
+Platform Information
+--------------------
+
+Several information can be passed through the platform and device-tree.
+
+::
+
+ struct plat_stmmacenet_data {
+
+1) Bus identifier::
+
+ int bus_id;
+
+2) PHY Physical Address. If set to -1 the driver will pick the first PHY it
+finds::
+
+ int phy_addr;
+
+3) PHY Device Interface::
+
+ int interface;
+
+4) Specific platform fields for the MDIO bus::
+
+ struct stmmac_mdio_bus_data *mdio_bus_data;
+
+5) Internal DMA parameters::
+
+ struct stmmac_dma_cfg *dma_cfg;
+
+6) Fixed CSR Clock Range selection::
+
+ int clk_csr;
+
+7) HW uses the GMAC core::
+
+ int has_gmac;
+
+8) If set the MAC will use Enhanced Descriptors::
+
+ int enh_desc;
+
+9) Core is able to perform TX Checksum and/or RX Checksum in HW::
+
+ int tx_coe;
+ int rx_coe;
+
+11) Some HWs are not able to perform the csum in HW for over-sized frames due
+to limited buffer sizes. Setting this flag the csum will be done in SW on
+JUMBO frames::
+
+ int bugged_jumbo;
+
+12) Core has the embedded power module::
+
+ int pmt;
+
+13) Force DMA to use the Store and Forward mode or Threshold mode::
+
+ int force_sf_dma_mode;
+ int force_thresh_dma_mode;
+
+15) Force to disable the RX Watchdog feature and switch to NAPI mode::
+
+ int riwt_off;
+
+16) Limit the maximum operating speed and MTU::
+
+ int max_speed;
+ int maxmtu;
+
+18) Number of Multicast/Unicast filters::
+
+ int multicast_filter_bins;
+ int unicast_filter_entries;
+
+20) Limit the maximum TX and RX FIFO size::
+
+ int tx_fifo_size;
+ int rx_fifo_size;
+
+21) Use the specified number of TX and RX Queues::
+
+ u32 rx_queues_to_use;
+ u32 tx_queues_to_use;
+
+22) Use the specified TX and RX scheduling algorithm::
+
+ u8 rx_sched_algorithm;
+ u8 tx_sched_algorithm;
+
+23) Internal TX and RX Queue parameters::
+
+ struct stmmac_rxq_cfg rx_queues_cfg[MTL_MAX_RX_QUEUES];
+ struct stmmac_txq_cfg tx_queues_cfg[MTL_MAX_TX_QUEUES];
+
+24) This callback is used for modifying some syscfg registers (on ST SoCs)
+according to the link speed negotiated by the physical layer::
+
+ void (*fix_mac_speed)(void *priv, unsigned int speed);
+
+25) Callbacks used for calling a custom initialization; This is sometimes
+necessary on some platforms (e.g. ST boxes) where the HW needs to have set
+some PIO lines or system cfg registers. init/exit callbacks should not use
+or modify platform data::
+
+ int (*init)(struct platform_device *pdev, void *priv);
+ void (*exit)(struct platform_device *pdev, void *priv);
+
+26) Perform HW setup of the bus. For example, on some ST platforms this field
+is used to configure the AMBA bridge to generate more efficient STBus traffic::
+
+ struct mac_device_info *(*setup)(void *priv);
+ void *bsp_priv;
+
+27) Internal clocks and rates::
+
+ struct clk *stmmac_clk;
+ struct clk *pclk;
+ struct clk *clk_ptp_ref;
+ unsigned int clk_ptp_rate;
+ unsigned int clk_ref_rate;
+ s32 ptp_max_adj;
+
+28) Main reset::
+
+ struct reset_control *stmmac_rst;
+
+29) AXI Internal Parameters::
+
+ struct stmmac_axi *axi;
+
+30) HW uses GMAC>4 cores::
+
+ int has_gmac4;
+
+31) HW is sun8i based::
+
+ bool has_sun8i;
+
+32) Enables TSO feature::
+
+ bool tso_en;
+
+33) Enables Receive Side Scaling (RSS) feature::
+
+ int rss_en;
+
+34) MAC Port selection::
+
+ int mac_port_sel_speed;
+
+35) Enables TX LPI Clock Gating::
+
+ bool en_tx_lpi_clockgating;
+
+36) HW uses XGMAC>2.10 cores::
+
+ int has_xgmac;
+
+::
+
+ }
+
+For MDIO bus data, we have:
+
+::
+
+ struct stmmac_mdio_bus_data {
+
+1) PHY mask passed when MDIO bus is registered::
+
+ unsigned int phy_mask;
+
+2) List of IRQs, one per PHY::
+
+ int *irqs;
+
+3) If IRQs is NULL, use this for probed PHY::
+
+ int probed_phy_irq;
+
+4) Set to true if PHY needs reset::
+
+ bool needs_reset;
+
+::
+
+ }
+
+For DMA engine configuration, we have:
+
+::
+
+ struct stmmac_dma_cfg {
+
+1) Programmable Burst Length (TX and RX)::
+
+ int pbl;
+
+2) If set, DMA TX / RX will use this value rather than pbl::
+
+ int txpbl;
+ int rxpbl;
+
+3) Enable 8xPBL::
+
+ bool pblx8;
+
+4) Enable Fixed or Mixed burst::
+
+ int fixed_burst;
+ int mixed_burst;
+
+5) Enable Address Aligned Beats::
+
+ bool aal;
+
+6) Enable Enhanced Addressing (> 32 bits)::
+
+ bool eame;
+
+::
+
+ }
+
+For DMA AXI parameters, we have:
+
+::
+
+ struct stmmac_axi {
+
+1) Enable AXI LPI::
+
+ bool axi_lpi_en;
+ bool axi_xit_frm;
+
+2) Set AXI Write / Read maximum outstanding requests::
+
+ u32 axi_wr_osr_lmt;
+ u32 axi_rd_osr_lmt;
+
+3) Set AXI 4KB bursts::
+
+ bool axi_kbbe;
+
+4) Set AXI maximum burst length map::
+
+ u32 axi_blen[AXI_BLEN];
+
+5) Set AXI Fixed burst / mixed burst::
+
+ bool axi_fb;
+ bool axi_mb;
+
+6) Set AXI rebuild incrx mode::
+
+ bool axi_rb;
+
+::
+
+ }
+
+For the RX Queues configuration, we have:
+
+::
+
+ struct stmmac_rxq_cfg {
+
+1) Mode to use (DCB or AVB)::
+
+ u8 mode_to_use;
+
+2) DMA channel to use::
+
+ u32 chan;
+
+3) Packet routing, if applicable::
+
+ u8 pkt_route;
+
+4) Use priority routing, and priority to route::
+
+ bool use_prio;
+ u32 prio;
+
+::
+
+ }
+
+For the TX Queues configuration, we have:
+
+::
+
+ struct stmmac_txq_cfg {
+
+1) Queue weight in scheduler::
+
+ u32 weight;
+
+2) Mode to use (DCB or AVB)::
+
+ u8 mode_to_use;
+
+3) Credit Base Shaper Parameters::
+
+ u32 send_slope;
+ u32 idle_slope;
+ u32 high_credit;
+ u32 low_credit;
+
+4) Use priority scheduling, and priority::
+
+ bool use_prio;
+ u32 prio;
+
+::
+
+ }
+
+Device Tree Information
+-----------------------
+
+Please refer to the following document:
+Documentation/devicetree/bindings/net/snps,dwmac.yaml
+
+HW Capabilities
+---------------
+
+Note that, starting from new chips, where it is available the HW capability
+register, many configurations are discovered at run-time for example to
+understand if EEE, HW csum, PTP, enhanced descriptor etc are actually
+available. As strategy adopted in this driver, the information from the HW
+capability register can replace what has been passed from the platform.
+
+Debug Information
+=================
+
+The driver exports many information i.e. internal statistics, debug
+information, MAC and DMA registers etc.
+
+These can be read in several ways depending on the type of the information
+actually needed.
+
+For example a user can be use the ethtool support to get statistics: e.g.
+using: ``ethtool -S ethX`` (that shows the Management counters (MMC) if
+supported) or sees the MAC/DMA registers: e.g. using: ``ethtool -d ethX``
+
+Compiling the Kernel with ``CONFIG_DEBUG_FS`` the driver will export the
+following debugfs entries:
+
+ - ``descriptors_status``: To show the DMA TX/RX descriptor rings
+ - ``dma_cap``: To show the HW Capabilities
+
+Developer can also use the ``debug`` module parameter to get further debug
+information (please see: NETIF Msg Level).
+
+Support
+=======
+
+If an issue is identified with the released source code on a supported kernel
+with a supported adapter, email the specific information related to the
+issue to netdev@vger.kernel.org
diff --git a/Documentation/networking/device_drivers/stmicro/stmmac.txt b/Documentation/networking/device_drivers/stmicro/stmmac.txt
deleted file mode 100644
index 1ae979fd90d2..000000000000
--- a/Documentation/networking/device_drivers/stmicro/stmmac.txt
+++ /dev/null
@@ -1,401 +0,0 @@
- STMicroelectronics 10/100/1000 Synopsys Ethernet driver
-
-Copyright (C) 2007-2015 STMicroelectronics Ltd
-Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
-
-This is the driver for the MAC 10/100/1000 on-chip Ethernet controllers
-(Synopsys IP blocks).
-
-Currently this network device driver is for all STi embedded MAC/GMAC
-(i.e. 7xxx/5xxx SoCs), SPEAr (arm), Loongson1B (mips) and XLINX XC2V3000
-FF1152AMT0221 D1215994A VIRTEX FPGA board.
-
-DWC Ether MAC 10/100/1000 Universal version 3.70a (and older) and DWC Ether
-MAC 10/100 Universal version 4.0 have been used for developing this driver.
-
-This driver supports both the platform bus and PCI.
-
-Please, for more information also visit: www.stlinux.com
-
-1) Kernel Configuration
-The kernel configuration option is STMMAC_ETH:
- Device Drivers ---> Network device support ---> Ethernet (1000 Mbit) --->
- STMicroelectronics 10/100/1000 Ethernet driver (STMMAC_ETH)
-
-CONFIG_STMMAC_PLATFORM: is to enable the platform driver.
-CONFIG_STMMAC_PCI: is to enable the pci driver.
-
-2) Driver parameters list:
- debug: message level (0: no output, 16: all);
- phyaddr: to manually provide the physical address to the PHY device;
- buf_sz: DMA buffer size;
- tc: control the HW FIFO threshold;
- watchdog: transmit timeout (in milliseconds);
- flow_ctrl: Flow control ability [on/off];
- pause: Flow Control Pause Time;
- eee_timer: tx EEE timer;
- chain_mode: select chain mode instead of ring.
-
-3) Command line options
-Driver parameters can be also passed in command line by using:
- stmmaceth=watchdog:100,chain_mode=1
-
-4) Driver information and notes
-
-4.1) Transmit process
-The xmit method is invoked when the kernel needs to transmit a packet; it sets
-the descriptors in the ring and informs the DMA engine, that there is a packet
-ready to be transmitted.
-By default, the driver sets the NETIF_F_SG bit in the features field of the
-net_device structure, enabling the scatter-gather feature. This is true on
-chips and configurations where the checksum can be done in hardware.
-Once the controller has finished transmitting the packet, timer will be
-scheduled to release the transmit resources.
-
-4.2) Receive process
-When one or more packets are received, an interrupt happens. The interrupts
-are not queued, so the driver has to scan all the descriptors in the ring during
-the receive process.
-This is based on NAPI, so the interrupt handler signals only if there is work
-to be done, and it exits.
-Then the poll method will be scheduled at some future point.
-The incoming packets are stored, by the DMA, in a list of pre-allocated socket
-buffers in order to avoid the memcpy (zero-copy).
-
-4.3) Interrupt mitigation
-The driver is able to mitigate the number of its DMA interrupts
-using NAPI for the reception on chips older than the 3.50.
-New chips have an HW RX-Watchdog used for this mitigation.
-Mitigation parameters can be tuned by ethtool.
-
-4.4) WOL
-Wake up on Lan feature through Magic and Unicast frames are supported for the
-GMAC core.
-
-4.5) DMA descriptors
-Driver handles both normal and alternate descriptors. The latter has been only
-tested on DWC Ether MAC 10/100/1000 Universal version 3.41a and later.
-
-STMMAC supports DMA descriptor to operate both in dual buffer (RING)
-and linked-list(CHAINED) mode. In RING each descriptor points to two
-data buffer pointers whereas in CHAINED mode they point to only one data
-buffer pointer. RING mode is the default.
-
-In CHAINED mode each descriptor will have pointer to next descriptor in
-the list, hence creating the explicit chaining in the descriptor itself,
-whereas such explicit chaining is not possible in RING mode.
-
-4.5.1) Extended descriptors
-The extended descriptors give us information about the Ethernet payload
-when it is carrying PTP packets or TCP/UDP/ICMP over IP.
-These are not available on GMAC Synopsys chips older than the 3.50.
-At probe time the driver will decide if these can be actually used.
-This support also is mandatory for PTPv2 because the extra descriptors
-are used for saving the hardware timestamps and Extended Status.
-
-4.6) Ethtool support
-Ethtool is supported.
-
-For example, driver statistics (including RMON), internal errors can be taken
-using:
- # ethtool -S ethX
-command
-
-4.7) Jumbo and Segmentation Offloading
-Jumbo frames are supported and tested for the GMAC.
-The GSO has been also added but it's performed in software.
-LRO is not supported.
-
-4.8) Physical
-The driver is compatible with Physical Abstraction Layer to be connected with
-PHY and GPHY devices.
-
-4.9) Platform information
-Several information can be passed through the platform and device-tree.
-
-struct plat_stmmacenet_data {
- char *phy_bus_name;
- int bus_id;
- int phy_addr;
- int interface;
- struct stmmac_mdio_bus_data *mdio_bus_data;
- struct stmmac_dma_cfg *dma_cfg;
- int clk_csr;
- int has_gmac;
- int enh_desc;
- int tx_coe;
- int rx_coe;
- int bugged_jumbo;
- int pmt;
- int force_sf_dma_mode;
- int force_thresh_dma_mode;
- int riwt_off;
- int max_speed;
- int maxmtu;
- void (*fix_mac_speed)(void *priv, unsigned int speed);
- void (*bus_setup)(void __iomem *ioaddr);
- int (*init)(struct platform_device *pdev, void *priv);
- void (*exit)(struct platform_device *pdev, void *priv);
- void *bsp_priv;
- int has_gmac4;
- bool tso_en;
-};
-
-Where:
- o phy_bus_name: phy bus name to attach to the stmmac.
- o bus_id: bus identifier.
- o phy_addr: the physical address can be passed from the platform.
- If it is set to -1 the driver will automatically
- detect it at run-time by probing all the 32 addresses.
- o interface: PHY device's interface.
- o mdio_bus_data: specific platform fields for the MDIO bus.
- o dma_cfg: internal DMA parameters
- o pbl: the Programmable Burst Length is maximum number of beats to
- be transferred in one DMA transaction.
- GMAC also enables the 4xPBL by default. (8xPBL for GMAC 3.50 and newer)
- o txpbl/rxpbl: GMAC and newer supports independent DMA pbl for tx/rx.
- o pblx8: Enable 8xPBL (4xPBL for core rev < 3.50). Enabled by default.
- o fixed_burst/mixed_burst/aal
- o clk_csr: fixed CSR Clock range selection.
- o has_gmac: uses the GMAC core.
- o enh_desc: if sets the MAC will use the enhanced descriptor structure.
- o tx_coe: core is able to perform the tx csum in HW.
- o rx_coe: the supports three check sum offloading engine types:
- type_1, type_2 (full csum) and no RX coe.
- o bugged_jumbo: some HWs are not able to perform the csum in HW for
- over-sized frames due to limited buffer sizes.
- Setting this flag the csum will be done in SW on
- JUMBO frames.
- o pmt: core has the embedded power module (optional).
- o force_sf_dma_mode: force DMA to use the Store and Forward mode
- instead of the Threshold.
- o force_thresh_dma_mode: force DMA to use the Threshold mode other than
- the Store and Forward mode.
- o riwt_off: force to disable the RX watchdog feature and switch to NAPI mode.
- o fix_mac_speed: this callback is used for modifying some syscfg registers
- (on ST SoCs) according to the link speed negotiated by the
- physical layer .
- o bus_setup: perform HW setup of the bus. For example, on some ST platforms
- this field is used to configure the AMBA bridge to generate more
- efficient STBus traffic.
- o init/exit: callbacks used for calling a custom initialization;
- this is sometime necessary on some platforms (e.g. ST boxes)
- where the HW needs to have set some PIO lines or system cfg
- registers. init/exit callbacks should not use or modify
- platform data.
- o bsp_priv: another private pointer.
- o has_gmac4: uses GMAC4 core.
- o tso_en: Enables TSO (TCP Segmentation Offload) feature.
-
-For MDIO bus The we have:
-
- struct stmmac_mdio_bus_data {
- int (*phy_reset)(void *priv);
- unsigned int phy_mask;
- int *irqs;
- int probed_phy_irq;
- };
-
-Where:
- o phy_reset: hook to reset the phy device attached to the bus.
- o phy_mask: phy mask passed when register the MDIO bus within the driver.
- o irqs: list of IRQs, one per PHY.
- o probed_phy_irq: if irqs is NULL, use this for probed PHY.
-
-For DMA engine we have the following internal fields that should be
-tuned according to the HW capabilities.
-
-struct stmmac_dma_cfg {
- int pbl;
- int txpbl;
- int rxpbl;
- bool pblx8;
- int fixed_burst;
- int mixed_burst;
- bool aal;
-};
-
-Where:
- o pbl: Programmable Burst Length (tx and rx)
- o txpbl: Transmit Programmable Burst Length. Only for GMAC and newer.
- If set, DMA tx will use this value rather than pbl.
- o rxpbl: Receive Programmable Burst Length. Only for GMAC and newer.
- If set, DMA rx will use this value rather than pbl.
- o pblx8: Enable 8xPBL (4xPBL for core rev < 3.50). Enabled by default.
- o fixed_burst: program the DMA to use the fixed burst mode
- o mixed_burst: program the DMA to use the mixed burst mode
- o aal: Address-Aligned Beats
-
----
-
-Below an example how the structures above are using on ST platforms.
-
- static struct plat_stmmacenet_data stxYYY_ethernet_platform_data = {
- .has_gmac = 0,
- .enh_desc = 0,
- .fix_mac_speed = stxYYY_ethernet_fix_mac_speed,
- |
- |-> to write an internal syscfg
- | on this platform when the
- | link speed changes from 10 to
- | 100 and viceversa
- .init = &stmmac_claim_resource,
- |
- |-> On ST SoC this calls own "PAD"
- | manager framework to claim
- | all the resources necessary
- | (GPIO ...). The .custom_cfg field
- | is used to pass a custom config.
-};
-
-Below the usage of the stmmac_mdio_bus_data: on this SoC, in fact,
-there are two MAC cores: one MAC is for MDIO Bus/PHY emulation
-with fixed_link support.
-
-static struct stmmac_mdio_bus_data stmmac1_mdio_bus = {
- .phy_reset = phy_reset;
- |
- |-> function to provide the phy_reset on this board
- .phy_mask = 0,
-};
-
-static struct fixed_phy_status stmmac0_fixed_phy_status = {
- .link = 1,
- .speed = 100,
- .duplex = 1,
-};
-
-During the board's device_init we can configure the first
-MAC for fixed_link by calling:
- fixed_phy_add(PHY_POLL, 1, &stmmac0_fixed_phy_status);
-and the second one, with a real PHY device attached to the bus,
-by using the stmmac_mdio_bus_data structure (to provide the id, the
-reset procedure etc).
-
-Note that, starting from new chips, where it is available the HW capability
-register, many configurations are discovered at run-time for example to
-understand if EEE, HW csum, PTP, enhanced descriptor etc are actually
-available. As strategy adopted in this driver, the information from the HW
-capability register can replace what has been passed from the platform.
-
-4.10) Device-tree support.
-
-Please see the following document:
- Documentation/devicetree/bindings/net/stmmac.txt
-
-4.11) This is a summary of the content of some relevant files:
- o stmmac_main.c: implements the main network device driver;
- o stmmac_mdio.c: provides MDIO functions;
- o stmmac_pci: this is the PCI driver;
- o stmmac_platform.c: this the platform driver (OF supported);
- o stmmac_ethtool.c: implements the ethtool support;
- o stmmac.h: private driver structure;
- o common.h: common definitions and VFTs;
- o mmc_core.c/mmc.h: Management MAC Counters;
- o stmmac_hwtstamp.c: HW timestamp support for PTP;
- o stmmac_ptp.c: PTP 1588 clock;
- o stmmac_pcs.h: Physical Coding Sublayer common implementation;
- o dwmac-<XXX>.c: these are for the platform glue-logic file; e.g. dwmac-sti.c
- for STMicroelectronics SoCs.
-
-- GMAC 3.x
- o descs.h: descriptor structure definitions;
- o dwmac1000_core.c: dwmac GiGa core functions;
- o dwmac1000_dma.c: dma functions for the GMAC chip;
- o dwmac1000.h: specific header file for the dwmac GiGa;
- o dwmac100_core: dwmac 100 core code;
- o dwmac100_dma.c: dma functions for the dwmac 100 chip;
- o dwmac1000.h: specific header file for the MAC;
- o dwmac_lib.c: generic DMA functions;
- o enh_desc.c: functions for handling enhanced descriptors;
- o norm_desc.c: functions for handling normal descriptors;
- o chain_mode.c/ring_mode.c:: functions to manage RING/CHAINED modes;
-
-- GMAC4.x generation
- o dwmac4_core.c: dwmac GMAC4.x core functions;
- o dwmac4_desc.c: functions for handling GMAC4.x descriptors;
- o dwmac4_descs.h: descriptor definitions;
- o dwmac4_dma.c: dma functions for the GMAC4.x chip;
- o dwmac4_dma.h: dma definitions for the GMAC4.x chip;
- o dwmac4.h: core definitions for the GMAC4.x chip;
- o dwmac4_lib.c: generic GMAC4.x functions;
-
-4.12) TSO support (GMAC4.x)
-
-TSO (Tcp Segmentation Offload) feature is supported by GMAC 4.x chip family.
-When a packet is sent through TCP protocol, the TCP stack ensures that
-the SKB provided to the low level driver (stmmac in our case) matches with
-the maximum frame len (IP header + TCP header + payload <= 1500 bytes (for
-MTU set to 1500)). It means that if an application using TCP want to send a
-packet which will have a length (after adding headers) > 1514 the packet
-will be split in several TCP packets: The data payload is split and headers
-(TCP/IP ..) are added. It is done by software.
-
-When TSO is enabled, the TCP stack doesn't care about the maximum frame
-length and provide SKB packet to stmmac as it is. The GMAC IP will have to
-perform the segmentation by it self to match with maximum frame length.
-
-This feature can be enabled in device tree through "snps,tso" entry.
-
-5) Debug Information
-
-The driver exports many information i.e. internal statistics,
-debug information, MAC and DMA registers etc.
-
-These can be read in several ways depending on the
-type of the information actually needed.
-
-For example a user can be use the ethtool support
-to get statistics: e.g. using: ethtool -S ethX
-(that shows the Management counters (MMC) if supported)
-or sees the MAC/DMA registers: e.g. using: ethtool -d ethX
-
-Compiling the Kernel with CONFIG_DEBUG_FS the driver will export the following
-debugfs entries:
-
-/sys/kernel/debug/stmmaceth/descriptors_status
- To show the DMA TX/RX descriptor rings
-
-Developer can also use the "debug" module parameter to get further debug
-information (please see: NETIF Msg Level).
-
-6) Energy Efficient Ethernet
-
-Energy Efficient Ethernet(EEE) enables IEEE 802.3 MAC sublayer along
-with a family of Physical layer to operate in the Low power Idle(LPI)
-mode. The EEE mode supports the IEEE 802.3 MAC operation at 100Mbps,
-1000Mbps & 10Gbps.
-
-The LPI mode allows power saving by switching off parts of the
-communication device functionality when there is no data to be
-transmitted & received. The system on both the side of the link can
-disable some functionalities & save power during the period of low-link
-utilization. The MAC controls whether the system should enter or exit
-the LPI mode & communicate this to PHY.
-
-As soon as the interface is opened, the driver verifies if the EEE can
-be supported. This is done by looking at both the DMA HW capability
-register and the PHY devices MCD registers.
-To enter in Tx LPI mode the driver needs to have a software timer
-that enable and disable the LPI mode when there is nothing to be
-transmitted.
-
-7) Precision Time Protocol (PTP)
-The driver supports the IEEE 1588-2002, Precision Time Protocol (PTP),
-which enables precise synchronization of clocks in measurement and
-control systems implemented with technologies such as network
-communication.
-
-In addition to the basic timestamp features mentioned in IEEE 1588-2002
-Timestamps, new GMAC cores support the advanced timestamp features.
-IEEE 1588-2008 that can be enabled when configure the Kernel.
-
-8) SGMII/RGMII support
-New GMAC devices provide own way to manage RGMII/SGMII.
-This information is available at run-time by looking at the
-HW capability register. This means that the stmmac can manage
-auto-negotiation and link status w/o using the PHYLIB stuff.
-In fact, the HW provides a subset of extended registers to
-restart the ANE, verify Full/Half duplex mode and Speed.
-Thanks to these registers, it is possible to look at the
-Auto-negotiated Link Parter Ability.
diff --git a/Documentation/networking/device_drivers/ti/cpsw_switchdev.txt b/Documentation/networking/device_drivers/ti/cpsw_switchdev.txt
index 5c8cee17fca9..12855ab268b8 100644
--- a/Documentation/networking/device_drivers/ti/cpsw_switchdev.txt
+++ b/Documentation/networking/device_drivers/ti/cpsw_switchdev.txt
@@ -39,7 +39,7 @@ but without enabling "switch" mode, or to different bridges.
Devlink configuration parameters
====================
-See Documentation/networking/devlink-params-ti-cpsw-switch.txt
+See Documentation/networking/devlink/ti-cpsw-switch.rst
====================
# Bridging in dual mac mode
diff --git a/Documentation/networking/devlink-health.txt b/Documentation/networking/devlink-health.txt
deleted file mode 100644
index 1db3fbea0831..000000000000
--- a/Documentation/networking/devlink-health.txt
+++ /dev/null
@@ -1,86 +0,0 @@
-The health mechanism is targeted for Real Time Alerting, in order to know when
-something bad had happened to a PCI device
-- Provide alert debug information
-- Self healing
-- If problem needs vendor support, provide a way to gather all needed debugging
- information.
-
-The main idea is to unify and centralize driver health reports in the
-generic devlink instance and allow the user to set different
-attributes of the health reporting and recovery procedures.
-
-The devlink health reporter:
-Device driver creates a "health reporter" per each error/health type.
-Error/Health type can be a known/generic (eg pci error, fw error, rx/tx error)
-or unknown (driver specific).
-For each registered health reporter a driver can issue error/health reports
-asynchronously. All health reports handling is done by devlink.
-Device driver can provide specific callbacks for each "health reporter", e.g.
- - Recovery procedures
- - Diagnostics and object dump procedures
- - OOB initial parameters
-Different parts of the driver can register different types of health reporters
-with different handlers.
-
-Once an error is reported, devlink health will do the following actions:
- * A log is being send to the kernel trace events buffer
- * Health status and statistics are being updated for the reporter instance
- * Object dump is being taken and saved at the reporter instance (as long as
- there is no other dump which is already stored)
- * Auto recovery attempt is being done. Depends on:
- - Auto-recovery configuration
- - Grace period vs. time passed since last recover
-
-The user interface:
-User can access/change each reporter's parameters and driver specific callbacks
-via devlink, e.g per error type (per health reporter)
- - Configure reporter's generic parameters (like: disable/enable auto recovery)
- - Invoke recovery procedure
- - Run diagnostics
- - Object dump
-
-The devlink health interface (via netlink):
-DEVLINK_CMD_HEALTH_REPORTER_GET
- Retrieves status and configuration info per DEV and reporter.
-DEVLINK_CMD_HEALTH_REPORTER_SET
- Allows reporter-related configuration setting.
-DEVLINK_CMD_HEALTH_REPORTER_RECOVER
- Triggers a reporter's recovery procedure.
-DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE
- Retrieves diagnostics data from a reporter on a device.
-DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET
- Retrieves the last stored dump. Devlink health
- saves a single dump. If an dump is not already stored by the devlink
- for this reporter, devlink generates a new dump.
- dump output is defined by the reporter.
-DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR
- Clears the last saved dump file for the specified reporter.
-
-
- netlink
- +--------------------------+
- | |
- | + |
- | | |
- +--------------------------+
- |request for ops
- |(diagnose,
- mlx5_core devlink |recover,
- |dump)
-+--------+ +--------------------------+
-| | | reporter| |
-| | | +---------v----------+ |
-| | ops execution | | | |
-| <----------------------------------+ | |
-| | | | | |
-| | | + ^------------------+ |
-| | | | request for ops |
-| | | | (recover, dump) |
-| | | | |
-| | | +-+------------------+ |
-| | health report | | health handler | |
-| +-------------------------------> | |
-| | | +--------------------+ |
-| | health reporter create | |
-| +----------------------------> |
-+--------+ +--------------------------+
diff --git a/Documentation/networking/devlink-info-versions.rst b/Documentation/networking/devlink-info-versions.rst
deleted file mode 100644
index 4914f581b1fd..000000000000
--- a/Documentation/networking/devlink-info-versions.rst
+++ /dev/null
@@ -1,64 +0,0 @@
-.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-
-=====================
-Devlink info versions
-=====================
-
-board.id
-========
-
-Unique identifier of the board design.
-
-board.rev
-=========
-
-Board design revision.
-
-asic.id
-=======
-
-ASIC design identifier.
-
-asic.rev
-========
-
-ASIC design revision.
-
-board.manufacture
-=================
-
-An identifier of the company or the facility which produced the part.
-
-fw
-==
-
-Overall firmware version, often representing the collection of
-fw.mgmt, fw.app, etc.
-
-fw.mgmt
-=======
-
-Control unit firmware version. This firmware is responsible for house
-keeping tasks, PHY control etc. but not the packet-by-packet data path
-operation.
-
-fw.app
-======
-
-Data path microcode controlling high-speed packet processing.
-
-fw.undi
-=======
-
-UNDI software, may include the UEFI driver, firmware or both.
-
-fw.ncsi
-=======
-
-Version of the software responsible for supporting/handling the
-Network Controller Sideband Interface.
-
-fw.psid
-=======
-
-Unique identifier of the firmware parameter set.
diff --git a/Documentation/networking/devlink-params-bnxt.txt b/Documentation/networking/devlink-params-bnxt.txt
deleted file mode 100644
index 481aa303d5b4..000000000000
--- a/Documentation/networking/devlink-params-bnxt.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-enable_sriov [DEVICE, GENERIC]
- Configuration mode: Permanent
-
-ignore_ari [DEVICE, GENERIC]
- Configuration mode: Permanent
-
-msix_vec_per_pf_max [DEVICE, GENERIC]
- Configuration mode: Permanent
-
-msix_vec_per_pf_min [DEVICE, GENERIC]
- Configuration mode: Permanent
-
-gre_ver_check [DEVICE, DRIVER-SPECIFIC]
- Generic Routing Encapsulation (GRE) version check will
- be enabled in the device. If disabled, device skips
- version checking for incoming packets.
- Type: Boolean
- Configuration mode: Permanent
diff --git a/Documentation/networking/devlink-params-mlx5.txt b/Documentation/networking/devlink-params-mlx5.txt
deleted file mode 100644
index 5071467118bd..000000000000
--- a/Documentation/networking/devlink-params-mlx5.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-flow_steering_mode [DEVICE, DRIVER-SPECIFIC]
- Controls the flow steering mode of the driver.
- Two modes are supported:
- 1. 'dmfs' - Device managed flow steering.
- 2. 'smfs - Software/Driver managed flow steering.
- In DMFS mode, the HW steering entities are created and
- managed through the Firmware.
- In SMFS mode, the HW steering entities are created and
- managed though by the driver directly into Hardware
- without firmware intervention.
- Type: String
- Configuration mode: runtime
-
-enable_roce [DEVICE, GENERIC]
- Enable handling of RoCE traffic in the device.
- Defaultly enabled.
- Configuration mode: driverinit
diff --git a/Documentation/networking/devlink-params-mlxsw.txt b/Documentation/networking/devlink-params-mlxsw.txt
deleted file mode 100644
index c63ea9fc7009..000000000000
--- a/Documentation/networking/devlink-params-mlxsw.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-fw_load_policy [DEVICE, GENERIC]
- Configuration mode: driverinit
-
-acl_region_rehash_interval [DEVICE, DRIVER-SPECIFIC]
- Sets an interval for periodic ACL region rehashes.
- The value is in milliseconds, minimal value is "3000".
- Value "0" disables the periodic work.
- The first rehash will be run right after value is set.
- Type: u32
- Configuration mode: runtime
diff --git a/Documentation/networking/devlink-params-mv88e6xxx.txt b/Documentation/networking/devlink-params-mv88e6xxx.txt
deleted file mode 100644
index 21c4b3556ef2..000000000000
--- a/Documentation/networking/devlink-params-mv88e6xxx.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-ATU_hash [DEVICE, DRIVER-SPECIFIC]
- Select one of four possible hashing algorithms for
- MAC addresses in the Address Translation Unit.
- A value of 3 seems to work better than the default of
- 1 when many MAC addresses have the same OUI.
- Configuration mode: runtime
- Type: u8. 0-3 valid.
diff --git a/Documentation/networking/devlink-params-nfp.txt b/Documentation/networking/devlink-params-nfp.txt
deleted file mode 100644
index 43e4d4034865..000000000000
--- a/Documentation/networking/devlink-params-nfp.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-fw_load_policy [DEVICE, GENERIC]
- Configuration mode: permanent
-
-reset_dev_on_drv_probe [DEVICE, GENERIC]
- Configuration mode: permanent
diff --git a/Documentation/networking/devlink-params-ti-cpsw-switch.txt b/Documentation/networking/devlink-params-ti-cpsw-switch.txt
deleted file mode 100644
index 4037458499f7..000000000000
--- a/Documentation/networking/devlink-params-ti-cpsw-switch.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-ale_bypass [DEVICE, DRIVER-SPECIFIC]
- Allows to enable ALE_CONTROL(4).BYPASS mode for debug purposes.
- All packets will be sent to the Host port only if enabled.
- Type: bool
- Configuration mode: runtime
-
-switch_mode [DEVICE, DRIVER-SPECIFIC]
- Enable switch mode
- Type: bool
- Configuration mode: runtime
diff --git a/Documentation/networking/devlink-params.txt b/Documentation/networking/devlink-params.txt
deleted file mode 100644
index 04e234e9acc9..000000000000
--- a/Documentation/networking/devlink-params.txt
+++ /dev/null
@@ -1,71 +0,0 @@
-Devlink configuration parameters
-================================
-Following is the list of configuration parameters via devlink interface.
-Each parameter can be generic or driver specific and are device level
-parameters.
-
-Note that the driver-specific files should contain the generic params
-they support to, with supported config modes.
-
-Each parameter can be set in different configuration modes:
- runtime - set while driver is running, no reset required.
- driverinit - applied while driver initializes, requires restart
- driver by devlink reload command.
- permanent - written to device's non-volatile memory, hard reset
- required.
-
-Following is the list of parameters:
-====================================
-enable_sriov [DEVICE, GENERIC]
- Enable Single Root I/O Virtualisation (SRIOV) in
- the device.
- Type: Boolean
-
-ignore_ari [DEVICE, GENERIC]
- Ignore Alternative Routing-ID Interpretation (ARI)
- capability. If enabled, adapter will ignore ARI
- capability even when platforms has the support
- enabled and creates same number of partitions when
- platform does not support ARI.
- Type: Boolean
-
-msix_vec_per_pf_max [DEVICE, GENERIC]
- Provides the maximum number of MSIX interrupts that
- a device can create. Value is same across all
- physical functions (PFs) in the device.
- Type: u32
-
-msix_vec_per_pf_min [DEVICE, GENERIC]
- Provides the minimum number of MSIX interrupts required
- for the device initialization. Value is same across all
- physical functions (PFs) in the device.
- Type: u32
-
-fw_load_policy [DEVICE, GENERIC]
- Controls the device's firmware loading policy.
- Valid values:
- * DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER (0)
- Load firmware version preferred by the driver.
- * DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH (1)
- Load firmware currently stored in flash.
- * DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DISK (2)
- Load firmware currently available on host's disk.
- Type: u8
-
-reset_dev_on_drv_probe [DEVICE, GENERIC]
- Controls the device's reset policy on driver probe.
- Valid values:
- * DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_UNKNOWN (0)
- Unknown or invalid value.
- * DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_ALWAYS (1)
- Always reset device on driver probe.
- * DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_NEVER (2)
- Never reset device on driver probe.
- * DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_DISK (3)
- Reset only if device firmware can be found in the
- filesystem.
- Type: u8
-
-enable_roce [DEVICE, GENERIC]
- Enable handling of RoCE traffic in the device.
- Type: Boolean
diff --git a/Documentation/networking/devlink-trap-netdevsim.rst b/Documentation/networking/devlink-trap-netdevsim.rst
deleted file mode 100644
index b721c9415473..000000000000
--- a/Documentation/networking/devlink-trap-netdevsim.rst
+++ /dev/null
@@ -1,20 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-======================
-Devlink Trap netdevsim
-======================
-
-Driver-specific Traps
-=====================
-
-.. list-table:: List of Driver-specific Traps Registered by ``netdevsim``
- :widths: 5 5 90
-
- * - Name
- - Type
- - Description
- * - ``fid_miss``
- - ``exception``
- - When a packet enters the device it is classified to a filtering
- indentifier (FID) based on the ingress port and VLAN. This trap is used
- to trap packets for which a FID could not be found
diff --git a/Documentation/networking/devlink/bnxt.rst b/Documentation/networking/devlink/bnxt.rst
new file mode 100644
index 000000000000..82ef9ec46707
--- /dev/null
+++ b/Documentation/networking/devlink/bnxt.rst
@@ -0,0 +1,74 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================
+bnxt devlink support
+====================
+
+This document describes the devlink features implemented by the ``bnxt``
+device driver.
+
+Parameters
+==========
+
+.. list-table:: Generic parameters implemented
+
+ * - Name
+ - Mode
+ * - ``enable_sriov``
+ - Permanent
+ * - ``ignore_ari``
+ - Permanent
+ * - ``msix_vec_per_pf_max``
+ - Permanent
+ * - ``msix_vec_per_pf_min``
+ - Permanent
+
+The ``bnxt`` driver also implements the following driver-specific
+parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``gre_ver_check``
+ - Boolean
+ - Permanent
+ - Generic Routing Encapsulation (GRE) version check will be enabled in
+ the device. If disabled, the device will skip the version check for
+ incoming packets.
+
+Info versions
+=============
+
+The ``bnxt_en`` driver reports the following versions
+
+.. list-table:: devlink info versions implemented
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``asic.id``
+ - fixed
+ - ASIC design identifier
+ * - ``asic.rev``
+ - fixed
+ - ASIC design revision
+ * - ``fw.psid``
+ - stored, running
+ - Firmware parameter set version of the board
+ * - ``fw``
+ - stored, running
+ - Overall board firmware version
+ * - ``fw.app``
+ - stored, running
+ - Data path firmware version
+ * - ``fw.mgmt``
+ - stored, running
+ - Management firmware version
+ * - ``fw.roce``
+ - stored, running
+ - RoCE management firmware version
diff --git a/Documentation/networking/devlink/devlink-dpipe.rst b/Documentation/networking/devlink/devlink-dpipe.rst
new file mode 100644
index 000000000000..468fe1001b74
--- /dev/null
+++ b/Documentation/networking/devlink/devlink-dpipe.rst
@@ -0,0 +1,252 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============
+Devlink DPIPE
+=============
+
+Background
+==========
+
+While performing the hardware offloading process, much of the hardware
+specifics cannot be presented. These details are useful for debugging, and
+``devlink-dpipe`` provides a standardized way to provide visibility into the
+offloading process.
+
+For example, the routing longest prefix match (LPM) algorithm used by the
+Linux kernel may differ from the hardware implementation. The pipeline debug
+API (DPIPE) is aimed at providing the user visibility into the ASIC's
+pipeline in a generic way.
+
+The hardware offload process is expected to be done in a way that the user
+should not be able to distinguish between the hardware vs. software
+implementation. In this process, hardware specifics are neglected. In
+reality those details can have lots of meaning and should be exposed in some
+standard way.
+
+This problem is made even more complex when one wishes to offload the
+control path of the whole networking stack to a switch ASIC. Due to
+differences in the hardware and software models some processes cannot be
+represented correctly.
+
+One example is the kernel's LPM algorithm which in many cases differs
+greatly to the hardware implementation. The configuration API is the same,
+but one cannot rely on the Forward Information Base (FIB) to look like the
+Level Path Compression trie (LPC-trie) in hardware.
+
+In many situations trying to analyze systems failure solely based on the
+kernel's dump may not be enough. By combining this data with complementary
+information about the underlying hardware, this debugging can be made
+easier; additionally, the information can be useful when debugging
+performance issues.
+
+Overview
+========
+
+The ``devlink-dpipe`` interface closes this gap. The hardware's pipeline is
+modeled as a graph of match/action tables. Each table represents a specific
+hardware block. This model is not new, first being used by the P4 language.
+
+Traditionally it has been used as an alternative model for hardware
+configuration, but the ``devlink-dpipe`` interface uses it for visibility
+purposes as a standard complementary tool. The system's view from
+``devlink-dpipe`` should change according to the changes done by the
+standard configuration tools.
+
+For example, it’s quiet common to implement Access Control Lists (ACL)
+using Ternary Content Addressable Memory (TCAM). The TCAM memory can be
+divided into TCAM regions. Complex TC filters can have multiple rules with
+different priorities and different lookup keys. On the other hand hardware
+TCAM regions have a predefined lookup key. Offloading the TC filter rules
+using TCAM engine can result in multiple TCAM regions being interconnected
+in a chain (which may affect the data path latency). In response to a new TC
+filter new tables should be created describing those regions.
+
+Model
+=====
+
+The ``DPIPE`` model introduces several objects:
+
+ * headers
+ * tables
+ * entries
+
+A ``header`` describes packet formats and provides names for fields within
+the packet. A ``table`` describes hardware blocks. An ``entry`` describes
+the actual content of a specific table.
+
+The hardware pipeline is not port specific, but rather describes the whole
+ASIC. Thus it is tied to the top of the ``devlink`` infrastructure.
+
+Drivers can register and unregister tables at run time, in order to support
+dynamic behavior. This dynamic behavior is mandatory for describing hardware
+blocks like TCAM regions which can be allocated and freed dynamically.
+
+``devlink-dpipe`` generally is not intended for configuration. The exception
+is hardware counting for a specific table.
+
+The following commands are used to obtain the ``dpipe`` objects from
+userspace:
+
+ * ``table_get``: Receive a table's description.
+ * ``headers_get``: Receive a device's supported headers.
+ * ``entries_get``: Receive a table's current entries.
+ * ``counters_set``: Enable or disable counters on a table.
+
+Table
+-----
+
+The driver should implement the following operations for each table:
+
+ * ``matches_dump``: Dump the supported matches.
+ * ``actions_dump``: Dump the supported actions.
+ * ``entries_dump``: Dump the actual content of the table.
+ * ``counters_set_update``: Synchronize hardware with counters enabled or
+ disabled.
+
+Header/Field
+------------
+
+In a similar way to P4 headers and fields are used to describe a table's
+behavior. There is a slight difference between the standard protocol headers
+and specific ASIC metadata. The protocol headers should be declared in the
+``devlink`` core API. On the other hand ASIC meta data is driver specific
+and should be defined in the driver. Additionally, each driver-specific
+devlink documentation file should document the driver-specific ``dpipe``
+headers it implements. The headers and fields are identified by enumeration.
+
+In order to provide further visibility some ASIC metadata fields could be
+mapped to kernel objects. For example, internal router interface indexes can
+be directly mapped to the net device ifindex. FIB table indexes used by
+different Virtual Routing and Forwarding (VRF) tables can be mapped to
+internal routing table indexes.
+
+Match
+-----
+
+Matches are kept primitive and close to hardware operation. Match types like
+LPM are not supported due to the fact that this is exactly a process we wish
+to describe in full detail. Example of matches:
+
+ * ``field_exact``: Exact match on a specific field.
+ * ``field_exact_mask``: Exact match on a specific field after masking.
+ * ``field_range``: Match on a specific range.
+
+The id's of the header and the field should be specified in order to
+identify the specific field. Furthermore, the header index should be
+specified in order to distinguish multiple headers of the same type in a
+packet (tunneling).
+
+Action
+------
+
+Similar to match, the actions are kept primitive and close to hardware
+operation. For example:
+
+ * ``field_modify``: Modify the field value.
+ * ``field_inc``: Increment the field value.
+ * ``push_header``: Add a header.
+ * ``pop_header``: Remove a header.
+
+Entry
+-----
+
+Entries of a specific table can be dumped on demand. Each eentry is
+identified with an index and its properties are described by a list of
+match/action values and specific counter. By dumping the tables content the
+interactions between tables can be resolved.
+
+Abstraction Example
+===================
+
+The following is an example of the abstraction model of the L3 part of
+Mellanox Spectrum ASIC. The blocks are described in the order they appear in
+the pipeline. The table sizes in the following examples are not real
+hardware sizes and are provided for demonstration purposes.
+
+LPM
+---
+
+The LPM algorithm can be implemented as a list of hash tables. Each hash
+table contains routes with the same prefix length. The root of the list is
+/32, and in case of a miss the hardware will continue to the next hash
+table. The depth of the search will affect the data path latency.
+
+In case of a hit the entry contains information about the next stage of the
+pipeline which resolves the MAC address. The next stage can be either local
+host table for directly connected routes, or adjacency table for next-hops.
+The ``meta.lpm_prefix`` field is used to connect two LPM tables.
+
+.. code::
+
+ table lpm_prefix_16 {
+ size: 4096,
+ counters_enabled: true,
+ match: { meta.vr_id: exact,
+ ipv4.dst_addr: exact_mask,
+ ipv6.dst_addr: exact_mask,
+ meta.lpm_prefix: exact },
+ action: { meta.adj_index: set,
+ meta.adj_group_size: set,
+ meta.rif_port: set,
+ meta.lpm_prefix: set },
+ }
+
+Local Host
+----------
+
+In the case of local routes the LPM lookup already resolves the egress
+router interface (RIF), yet the exact MAC address is not known. The local
+host table is a hash table combining the output interface id with
+destination IP address as a key. The result is the MAC address.
+
+.. code::
+
+ table local_host {
+ size: 4096,
+ counters_enabled: true,
+ match: { meta.rif_port: exact,
+ ipv4.dst_addr: exact},
+ action: { ethernet.daddr: set }
+ }
+
+Adjacency
+---------
+
+In case of remote routes this table does the ECMP. The LPM lookup results in
+ECMP group size and index that serves as a global offset into this table.
+Concurrently a hash of the packet is generated. Based on the ECMP group size
+and the packet's hash a local offset is generated. Multiple LPM entries can
+point to the same adjacency group.
+
+.. code::
+
+ table adjacency {
+ size: 4096,
+ counters_enabled: true,
+ match: { meta.adj_index: exact,
+ meta.adj_group_size: exact,
+ meta.packet_hash_index: exact },
+ action: { ethernet.daddr: set,
+ meta.erif: set }
+ }
+
+ERIF
+----
+
+In case the egress RIF and destination MAC have been resolved by previous
+tables this table does multiple operations like TTL decrease and MTU check.
+Then the decision of forward/drop is taken and the port L3 statistics are
+updated based on the packet's type (broadcast, unicast, multicast).
+
+.. code::
+
+ table erif {
+ size: 800,
+ counters_enabled: true,
+ match: { meta.rif_port: exact,
+ meta.is_l3_unicast: exact,
+ meta.is_l3_broadcast: exact,
+ meta.is_l3_multicast, exact },
+ action: { meta.l3_drop: set,
+ meta.l3_forward: set }
+ }
diff --git a/Documentation/networking/devlink/devlink-health.rst b/Documentation/networking/devlink/devlink-health.rst
new file mode 100644
index 000000000000..0c99b11f05f9
--- /dev/null
+++ b/Documentation/networking/devlink/devlink-health.rst
@@ -0,0 +1,114 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============
+Devlink Health
+==============
+
+Background
+==========
+
+The ``devlink`` health mechanism is targeted for Real Time Alerting, in
+order to know when something bad happened to a PCI device.
+
+ * Provide alert debug information.
+ * Self healing.
+ * If problem needs vendor support, provide a way to gather all needed
+ debugging information.
+
+Overview
+========
+
+The main idea is to unify and centralize driver health reports in the
+generic ``devlink`` instance and allow the user to set different
+attributes of the health reporting and recovery procedures.
+
+The ``devlink`` health reporter:
+Device driver creates a "health reporter" per each error/health type.
+Error/Health type can be a known/generic (eg pci error, fw error, rx/tx error)
+or unknown (driver specific).
+For each registered health reporter a driver can issue error/health reports
+asynchronously. All health reports handling is done by ``devlink``.
+Device driver can provide specific callbacks for each "health reporter", e.g.:
+
+ * Recovery procedures
+ * Diagnostics procedures
+ * Object dump procedures
+ * OOB initial parameters
+
+Different parts of the driver can register different types of health reporters
+with different handlers.
+
+Actions
+=======
+
+Once an error is reported, devlink health will perform the following actions:
+
+ * A log is being send to the kernel trace events buffer
+ * Health status and statistics are being updated for the reporter instance
+ * Object dump is being taken and saved at the reporter instance (as long as
+ there is no other dump which is already stored)
+ * Auto recovery attempt is being done. Depends on:
+ - Auto-recovery configuration
+ - Grace period vs. time passed since last recover
+
+User Interface
+==============
+
+User can access/change each reporter's parameters and driver specific callbacks
+via ``devlink``, e.g per error type (per health reporter):
+
+ * Configure reporter's generic parameters (like: disable/enable auto recovery)
+ * Invoke recovery procedure
+ * Run diagnostics
+ * Object dump
+
+.. list-table:: List of devlink health interfaces
+ :widths: 10 90
+
+ * - Name
+ - Description
+ * - ``DEVLINK_CMD_HEALTH_REPORTER_GET``
+ - Retrieves status and configuration info per DEV and reporter.
+ * - ``DEVLINK_CMD_HEALTH_REPORTER_SET``
+ - Allows reporter-related configuration setting.
+ * - ``DEVLINK_CMD_HEALTH_REPORTER_RECOVER``
+ - Triggers a reporter's recovery procedure.
+ * - ``DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE``
+ - Retrieves diagnostics data from a reporter on a device.
+ * - ``DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET``
+ - Retrieves the last stored dump. Devlink health
+ saves a single dump. If an dump is not already stored by the devlink
+ for this reporter, devlink generates a new dump.
+ dump output is defined by the reporter.
+ * - ``DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR``
+ - Clears the last saved dump file for the specified reporter.
+
+The following diagram provides a general overview of ``devlink-health``::
+
+ netlink
+ +--------------------------+
+ | |
+ | + |
+ | | |
+ +--------------------------+
+ |request for ops
+ |(diagnose,
+ mlx5_core devlink |recover,
+ |dump)
+ +--------+ +--------------------------+
+ | | | reporter| |
+ | | | +---------v----------+ |
+ | | ops execution | | | |
+ | <----------------------------------+ | |
+ | | | | | |
+ | | | + ^------------------+ |
+ | | | | request for ops |
+ | | | | (recover, dump) |
+ | | | | |
+ | | | +-+------------------+ |
+ | | health report | | health handler | |
+ | +-------------------------------> | |
+ | | | +--------------------+ |
+ | | health reporter create | |
+ | +----------------------------> |
+ +--------+ +--------------------------+
diff --git a/Documentation/networking/devlink/devlink-info.rst b/Documentation/networking/devlink/devlink-info.rst
new file mode 100644
index 000000000000..70981dd1b981
--- /dev/null
+++ b/Documentation/networking/devlink/devlink-info.rst
@@ -0,0 +1,100 @@
+.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+============
+Devlink Info
+============
+
+The ``devlink-info`` mechanism enables device drivers to report device
+information in a generic fashion. It is extensible, and enables exporting
+even device or driver specific information.
+
+devlink supports representing the following types of versions
+
+.. list-table:: List of version types
+ :widths: 5 95
+
+ * - Type
+ - Description
+ * - ``fixed``
+ - Represents fixed versions, which cannot change. For example,
+ component identifiers or the board version reported in the PCI VPD.
+ * - ``running``
+ - Represents the version of the currently running component. For
+ example the running version of firmware. These versions generally
+ only update after a reboot.
+ * - ``stored``
+ - Represents the version of a component as stored, such as after a
+ flash update. Stored values should update to reflect changes in the
+ flash even if a reboot has not yet occurred.
+
+Generic Versions
+================
+
+It is expected that drivers use the following generic names for exporting
+version information. Other information may be exposed using driver-specific
+names, but these should be documented in the driver-specific file.
+
+board.id
+--------
+
+Unique identifier of the board design.
+
+board.rev
+---------
+
+Board design revision.
+
+asic.id
+-------
+
+ASIC design identifier.
+
+asic.rev
+--------
+
+ASIC design revision.
+
+board.manufacture
+-----------------
+
+An identifier of the company or the facility which produced the part.
+
+fw
+--
+
+Overall firmware version, often representing the collection of
+fw.mgmt, fw.app, etc.
+
+fw.mgmt
+-------
+
+Control unit firmware version. This firmware is responsible for house
+keeping tasks, PHY control etc. but not the packet-by-packet data path
+operation.
+
+fw.app
+------
+
+Data path microcode controlling high-speed packet processing.
+
+fw.undi
+-------
+
+UNDI software, may include the UEFI driver, firmware or both.
+
+fw.ncsi
+-------
+
+Version of the software responsible for supporting/handling the
+Network Controller Sideband Interface.
+
+fw.psid
+-------
+
+Unique identifier of the firmware parameter set.
+
+fw.roce
+-------
+
+RoCE firmware version which is responsible for handling roce
+management.
diff --git a/Documentation/networking/devlink/devlink-params.rst b/Documentation/networking/devlink/devlink-params.rst
new file mode 100644
index 000000000000..da2f85c0fa21
--- /dev/null
+++ b/Documentation/networking/devlink/devlink-params.rst
@@ -0,0 +1,108 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============
+Devlink Params
+==============
+
+``devlink`` provides capability for a driver to expose device parameters for low
+level device functionality. Since devlink can operate at the device-wide
+level, it can be used to provide configuration that may affect multiple
+ports on a single device.
+
+This document describes a number of generic parameters that are supported
+across multiple drivers. Each driver is also free to add their own
+parameters. Each driver must document the specific parameters they support,
+whether generic or not.
+
+Configuration modes
+===================
+
+Parameters may be set in different configuration modes.
+
+.. list-table:: Possible configuration modes
+ :widths: 5 90
+
+ * - Name
+ - Description
+ * - ``runtime``
+ - set while the driver is running, and takes effect immediately. No
+ reset is required.
+ * - ``driverinit``
+ - applied while the driver initializes. Requires the user to restart
+ the driver using the ``devlink`` reload command.
+ * - ``permanent``
+ - written to the device's non-volatile memory. A hard reset is required
+ for it to take effect.
+
+Reloading
+---------
+
+In order for ``driverinit`` parameters to take effect, the driver must
+support reloading via the ``devlink-reload`` command. This command will
+request a reload of the device driver.
+
+Generic configuration parameters
+================================
+The following is a list of generic configuration parameters that drivers may
+add. Use of generic parameters is preferred over each driver creating their
+own name.
+
+.. list-table:: List of generic parameters
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``enable_sriov``
+ - Boolean
+ - Enable Single Root I/O Virtualization (SRIOV) in the device.
+ * - ``ignore_ari``
+ - Boolean
+ - Ignore Alternative Routing-ID Interpretation (ARI) capability. If
+ enabled, the adapter will ignore ARI capability even when the
+ platform has support enabled. The device will create the same number
+ of partitions as when the platform does not support ARI.
+ * - ``msix_vec_per_pf_max``
+ - u32
+ - Provides the maximum number of MSI-X interrupts that a device can
+ create. Value is the same across all physical functions (PFs) in the
+ device.
+ * - ``msix_vec_per_pf_min``
+ - u32
+ - Provides the minimum number of MSI-X interrupts required for the
+ device to initialize. Value is the same across all physical functions
+ (PFs) in the device.
+ * - ``fw_load_policy``
+ - u8
+ - Control the device's firmware loading policy.
+ - ``DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER`` (0)
+ Load firmware version preferred by the driver.
+ - ``DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH`` (1)
+ Load firmware currently stored in flash.
+ - ``DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DISK`` (2)
+ Load firmware currently available on host's disk.
+ * - ``reset_dev_on_drv_probe``
+ - u8
+ - Controls the device's reset policy on driver probe.
+ - ``DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_UNKNOWN`` (0)
+ Unknown or invalid value.
+ - ``DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_ALWAYS`` (1)
+ Always reset device on driver probe.
+ - ``DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_NEVER`` (2)
+ Never reset device on driver probe.
+ - ``DEVLINK_PARAM_RESET_DEV_ON_DRV_PROBE_VALUE_DISK`` (3)
+ Reset the device only if firmware can be found in the filesystem.
+ * - ``enable_roce``
+ - Boolean
+ - Enable handling of RoCE traffic in the device.
+ * - ``internal_err_reset``
+ - Boolean
+ - When enabled, the device driver will reset the device on internal
+ errors.
+ * - ``max_macs``
+ - u32
+ - Specifies the maximum number of MAC addresses per ethernet port of
+ this device.
+ * - ``region_snapshot_enable``
+ - Boolean
+ - Enable capture of ``devlink-region`` snapshots.
diff --git a/Documentation/networking/devlink/devlink-region.rst b/Documentation/networking/devlink/devlink-region.rst
new file mode 100644
index 000000000000..1a7683e7acb2
--- /dev/null
+++ b/Documentation/networking/devlink/devlink-region.rst
@@ -0,0 +1,60 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============
+Devlink Region
+==============
+
+``devlink`` regions enable access to driver defined address regions using
+devlink.
+
+Each device can create and register its own supported address regions. The
+region can then be accessed via the devlink region interface.
+
+Region snapshots are collected by the driver, and can be accessed via read
+or dump commands. This allows future analysis on the created snapshots.
+Regions may optionally support triggering snapshots on demand.
+
+The major benefit to creating a region is to provide access to internal
+address regions that are otherwise inaccessible to the user.
+
+Regions may also be used to provide an additional way to debug complex error
+states, but see also :doc:`devlink-health`
+
+example usage
+-------------
+
+.. code:: shell
+
+ $ devlink region help
+ $ devlink region show [ DEV/REGION ]
+ $ devlink region del DEV/REGION snapshot SNAPSHOT_ID
+ $ devlink region dump DEV/REGION [ snapshot SNAPSHOT_ID ]
+ $ devlink region read DEV/REGION [ snapshot SNAPSHOT_ID ]
+ address ADDRESS length length
+
+ # Show all of the exposed regions with region sizes:
+ $ devlink region show
+ pci/0000:00:05.0/cr-space: size 1048576 snapshot [1 2]
+ pci/0000:00:05.0/fw-health: size 64 snapshot [1 2]
+
+ # Delete a snapshot using:
+ $ devlink region del pci/0000:00:05.0/cr-space snapshot 1
+
+ # Trigger (request) a snapshot be taken:
+ $ devlink region trigger pci/0000:00:05.0/cr-space
+
+ # Dump a snapshot:
+ $ devlink region dump pci/0000:00:05.0/fw-health snapshot 1
+ 0000000000000000 0014 95dc 0014 9514 0035 1670 0034 db30
+ 0000000000000010 0000 0000 ffff ff04 0029 8c00 0028 8cc8
+ 0000000000000020 0016 0bb8 0016 1720 0000 0000 c00f 3ffc
+ 0000000000000030 bada cce5 bada cce5 bada cce5 bada cce5
+
+ # Read a specific part of a snapshot:
+ $ devlink region read pci/0000:00:05.0/fw-health snapshot 1 address 0
+ length 16
+ 0000000000000000 0014 95dc 0014 9514 0035 1670 0034 db30
+
+As regions are likely very device or driver specific, no generic regions are
+defined. See the driver-specific documentation files for information on the
+specific regions a driver supports.
diff --git a/Documentation/networking/devlink/devlink-resource.rst b/Documentation/networking/devlink/devlink-resource.rst
new file mode 100644
index 000000000000..93e92d2f0752
--- /dev/null
+++ b/Documentation/networking/devlink/devlink-resource.rst
@@ -0,0 +1,62 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+================
+Devlink Resource
+================
+
+``devlink`` provides the ability for drivers to register resources, which
+can allow administrators to see the device restrictions for a given
+resource, as well as how much of the given resource is currently
+in use. Additionally, these resources can optionally have configurable size.
+This could enable the administrator to limit the number of resources that
+are used.
+
+For example, the ``netdevsim`` driver enables ``/IPv4/fib`` and
+``/IPv4/fib-rules`` as resources to limit the number of IPv4 FIB entries and
+rules for a given device.
+
+Resource Ids
+============
+
+Each resource is represented by an id, and contains information about its
+current size and related sub resources. To access a sub resource, you
+specify the path of the resource. For example ``/IPv4/fib`` is the id for
+the ``fib`` sub-resource under the ``IPv4`` resource.
+
+example usage
+-------------
+
+The resources exposed by the driver can be observed, for example:
+
+.. code:: shell
+
+ $devlink resource show pci/0000:03:00.0
+ pci/0000:03:00.0:
+ name kvd size 245760 unit entry
+ resources:
+ name linear size 98304 occ 0 unit entry size_min 0 size_max 147456 size_gran 128
+ name hash_double size 60416 unit entry size_min 32768 size_max 180224 size_gran 128
+ name hash_single size 87040 unit entry size_min 65536 size_max 212992 size_gran 128
+
+Some resource's size can be changed. Examples:
+
+.. code:: shell
+
+ $devlink resource set pci/0000:03:00.0 path /kvd/hash_single size 73088
+ $devlink resource set pci/0000:03:00.0 path /kvd/hash_double size 74368
+
+The changes do not apply immediately, this can be validated by the 'size_new'
+attribute, which represents the pending change in size. For example:
+
+.. code:: shell
+
+ $devlink resource show pci/0000:03:00.0
+ pci/0000:03:00.0:
+ name kvd size 245760 unit entry size_valid false
+ resources:
+ name linear size 98304 size_new 147456 occ 0 unit entry size_min 0 size_max 147456 size_gran 128
+ name hash_double size 60416 unit entry size_min 32768 size_max 180224 size_gran 128
+ name hash_single size 87040 unit entry size_min 65536 size_max 212992 size_gran 128
+
+Note that changes in resource size may require a device reload to properly
+take effect.
diff --git a/Documentation/networking/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst
index 03311849bfb1..47a429bb8658 100644
--- a/Documentation/networking/devlink-trap.rst
+++ b/Documentation/networking/devlink/devlink-trap.rst
@@ -223,6 +223,21 @@ be added to the following table:
* - ``ipv6_lpm_miss``
- ``exception``
- Traps unicast IPv6 packets that did not match any route
+ * - ``non_routable_packet``
+ - ``drop``
+ - Traps packets that the device decided to drop because they are not
+ supposed to be routed. For example, IGMP queries can be flooded by the
+ device in layer 2 and reach the router. Such packets should not be
+ routed and instead dropped
+ * - ``decap_error``
+ - ``exception``
+ - Traps NVE and IPinIP packets that the device decided to drop because of
+ failure during decapsulation (e.g., packet being too short, reserved
+ bits set in VXLAN header)
+ * - ``overlay_smac_is_mc``
+ - ``drop``
+ - Traps NVE packets that the device decided to drop because their overlay
+ source MAC is multicast
Driver-specific Packet Traps
============================
@@ -233,7 +248,8 @@ help debug packet drops caused by these exceptions. The following list includes
links to the description of driver-specific traps registered by various device
drivers:
- * :doc:`devlink-trap-netdevsim`
+ * :doc:`netdevsim`
+ * :doc:`mlxsw`
Generic Packet Trap Groups
==========================
@@ -258,6 +274,9 @@ narrow. The description of these groups must be added to the following table:
* - ``buffer_drops``
- Contains packet traps for packets that were dropped by the device due to
an enqueue decision
+ * - ``tunnel_drops``
+ - Contains packet traps for packets that were dropped by the device during
+ tunnel encapsulation / decapsulation
Testing
=======
diff --git a/Documentation/networking/devlink/index.rst b/Documentation/networking/devlink/index.rst
new file mode 100644
index 000000000000..087ff54d53fc
--- /dev/null
+++ b/Documentation/networking/devlink/index.rst
@@ -0,0 +1,42 @@
+Linux Devlink Documentation
+===========================
+
+devlink is an API to expose device information and resources not directly
+related to any device class, such as chip-wide/switch-ASIC-wide configuration.
+
+Interface documentation
+-----------------------
+
+The following pages describe various interfaces available through devlink in
+general.
+
+.. toctree::
+ :maxdepth: 1
+
+ devlink-dpipe
+ devlink-health
+ devlink-info
+ devlink-params
+ devlink-region
+ devlink-resource
+ devlink-trap
+
+Driver-specific documentation
+-----------------------------
+
+Each driver that implements ``devlink`` is expected to document what
+parameters, info versions, and other features it supports.
+
+.. toctree::
+ :maxdepth: 1
+
+ bnxt
+ ionic
+ mlx4
+ mlx5
+ mlxsw
+ mv88e6xxx
+ netdevsim
+ nfp
+ qed
+ ti-cpsw-switch
diff --git a/Documentation/networking/devlink/ionic.rst b/Documentation/networking/devlink/ionic.rst
new file mode 100644
index 000000000000..48da9c92d584
--- /dev/null
+++ b/Documentation/networking/devlink/ionic.rst
@@ -0,0 +1,29 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================
+ionic devlink support
+=====================
+
+This document describes the devlink features implemented by the ``ionic``
+device driver.
+
+Info versions
+=============
+
+The ``ionic`` driver reports the following versions
+
+.. list-table:: devlink info versions implemented
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``fw``
+ - running
+ - Version of firmware running on the device
+ * - ``asic.id``
+ - fixed
+ - The ASIC type for this device
+ * - ``asic.rev``
+ - fixed
+ - The revision of the ASIC for this device
diff --git a/Documentation/networking/devlink/mlx4.rst b/Documentation/networking/devlink/mlx4.rst
new file mode 100644
index 000000000000..7b2d17ea5471
--- /dev/null
+++ b/Documentation/networking/devlink/mlx4.rst
@@ -0,0 +1,56 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================
+mlx4 devlink support
+====================
+
+This document describes the devlink features implemented by the ``mlx4``
+device driver.
+
+Parameters
+==========
+
+.. list-table:: Generic parameters implemented
+
+ * - Name
+ - Mode
+ * - ``internal_err_reset``
+ - driverinit, runtime
+ * - ``max_macs``
+ - driverinit
+ * - ``region_snapshot_enable``
+ - driverinit, runtime
+
+The ``mlx4`` driver also implements the following driver-specific
+parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``enable_64b_cqe_eqe``
+ - Boolean
+ - driverinit
+ - Enable 64 byte CQEs/EQEs, if the FW supports it.
+ * - ``enable_4k_uar``
+ - Boolean
+ - driverinit
+ - Enable using the 4k UAR.
+
+The ``mlx4`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
+
+Regions
+=======
+
+The ``mlx4`` driver supports dumping the firmware PCI crspace and health
+buffer during a critical firmware issue.
+
+In case a firmware command times out, firmware getting stuck, or a non zero
+value on the catastrophic buffer, a snapshot will be taken by the driver.
+
+The ``cr-space`` region will contain the firmware PCI crspace contents. The
+``fw-health`` region will contain the device firmware's health buffer.
+Snapshots for both of these regions are taken on the same event triggers.
diff --git a/Documentation/networking/devlink/mlx5.rst b/Documentation/networking/devlink/mlx5.rst
new file mode 100644
index 000000000000..629a6e69c036
--- /dev/null
+++ b/Documentation/networking/devlink/mlx5.rst
@@ -0,0 +1,59 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+====================
+mlx5 devlink support
+====================
+
+This document describes the devlink features implemented by the ``mlx5``
+device driver.
+
+Parameters
+==========
+
+.. list-table:: Generic parameters implemented
+
+ * - Name
+ - Mode
+ * - ``enable_roce``
+ - driverinit
+
+The ``mlx5`` driver also implements the following driver-specific
+parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``flow_steering_mode``
+ - string
+ - runtime
+ - Controls the flow steering mode of the driver
+
+ * ``dmfs`` Device managed flow steering. In DMFS mode, the HW
+ steering entities are created and managed through firmware.
+ * ``smfs`` Software managed flow steering. In SMFS mode, the HW
+ steering entities are created and manage through the driver without
+ firmware intervention.
+
+The ``mlx5`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
+
+Info versions
+=============
+
+The ``mlx5`` driver reports the following versions
+
+.. list-table:: devlink info versions implemented
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``fw.psid``
+ - fixed
+ - Used to represent the board id of the device.
+ * - ``fw.version``
+ - stored, running
+ - Three digit major.minor.subminor firmware version number.
diff --git a/Documentation/networking/devlink/mlxsw.rst b/Documentation/networking/devlink/mlxsw.rst
new file mode 100644
index 000000000000..cf857cb4ba8f
--- /dev/null
+++ b/Documentation/networking/devlink/mlxsw.rst
@@ -0,0 +1,81 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================
+mlxsw devlink support
+=====================
+
+This document describes the devlink features implemented by the ``mlxsw``
+device driver.
+
+Parameters
+==========
+
+.. list-table:: Generic parameters implemented
+
+ * - Name
+ - Mode
+ * - ``fw_load_policy``
+ - driverinit
+
+The ``mlxsw`` driver also implements the following driver-specific
+parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``acl_region_rehash_interval``
+ - u32
+ - runtime
+ - Sets an interval for periodic ACL region rehashes. The value is
+ specified in milliseconds, with a minimum of ``3000``. The value of
+ ``0`` disables periodic work entirely. The first rehash will be run
+ immediately after the value is set.
+
+The ``mlxsw`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
+
+Info versions
+=============
+
+The ``mlxsw`` driver reports the following versions
+
+.. list-table:: devlink info versions implemented
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``hw.revision``
+ - fixed
+ - The hardware revision for this board
+ * - ``fw.psid``
+ - fixed
+ - Firmware PSID
+ * - ``fw.version``
+ - running
+ - Three digit firmware version
+
+Driver-specific Traps
+=====================
+
+.. list-table:: List of Driver-specific Traps Registered by ``mlxsw``
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``irif_disabled``
+ - ``drop``
+ - Traps packets that the device decided to drop because they need to be
+ routed from a disabled router interface (RIF). This can happen during
+ RIF dismantle, when the RIF is first disabled before being removed
+ completely
+ * - ``erif_disabled``
+ - ``drop``
+ - Traps packets that the device decided to drop because they need to be
+ routed through a disabled router interface (RIF). This can happen during
+ RIF dismantle, when the RIF is first disabled before being removed
+ completely
diff --git a/Documentation/networking/devlink/mv88e6xxx.rst b/Documentation/networking/devlink/mv88e6xxx.rst
new file mode 100644
index 000000000000..c621212a47a1
--- /dev/null
+++ b/Documentation/networking/devlink/mv88e6xxx.rst
@@ -0,0 +1,28 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================
+mv88e6xxx devlink support
+=========================
+
+This document describes the devlink features implemented by the ``mv88e6xxx``
+device driver.
+
+Parameters
+==========
+
+The ``mv88e6xxx`` driver implements the following driver-specific parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``ATU_hash``
+ - u8
+ - runtime
+ - Select one of four possible hashing algorithms for MAC addresses in
+ the Address Translation Unit. A value of 3 may work better than the
+ default of 1 when many MAC addresses have the same OUI. Only the
+ values 0 to 3 are valid for this parameter.
diff --git a/Documentation/networking/devlink/netdevsim.rst b/Documentation/networking/devlink/netdevsim.rst
new file mode 100644
index 000000000000..2a266b7e7b38
--- /dev/null
+++ b/Documentation/networking/devlink/netdevsim.rst
@@ -0,0 +1,72 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=========================
+netdevsim devlink support
+=========================
+
+This document describes the ``devlink`` features supported by the
+``netdevsim`` device driver.
+
+Parameters
+==========
+
+.. list-table:: Generic parameters implemented
+
+ * - Name
+ - Mode
+ * - ``max_macs``
+ - driverinit
+
+The ``netdevsim`` driver also implements the following driver-specific
+parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``test1``
+ - Boolean
+ - driverinit
+ - Test parameter used to show how a driver-specific devlink parameter
+ can be implemented.
+
+The ``netdevsim`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
+
+Regions
+=======
+
+The ``netdevsim`` driver exposes a ``dummy`` region as an example of how the
+devlink-region interfaces work. A snapshot is taken whenever the
+``take_snapshot`` debugfs file is written to.
+
+Resources
+=========
+
+The ``netdevsim`` driver exposes resources to control the number of FIB
+entries and FIB rule entries that the driver will allow.
+
+.. code:: shell
+
+ $ devlink resource set netdevsim/netdevsim0 path /IPv4/fib size 96
+ $ devlink resource set netdevsim/netdevsim0 path /IPv4/fib-rules size 16
+ $ devlink resource set netdevsim/netdevsim0 path /IPv6/fib size 64
+ $ devlink resource set netdevsim/netdevsim0 path /IPv6/fib-rules size 16
+ $ devlink dev reload netdevsim/netdevsim0
+
+Driver-specific Traps
+=====================
+
+.. list-table:: List of Driver-specific Traps Registered by ``netdevsim``
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``fid_miss``
+ - ``exception``
+ - When a packet enters the device it is classified to a filtering
+ indentifier (FID) based on the ingress port and VLAN. This trap is used
+ to trap packets for which a FID could not be found
diff --git a/Documentation/networking/devlink/nfp.rst b/Documentation/networking/devlink/nfp.rst
new file mode 100644
index 000000000000..a1717db0dfcc
--- /dev/null
+++ b/Documentation/networking/devlink/nfp.rst
@@ -0,0 +1,65 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================
+nfp devlink support
+===================
+
+This document describes the devlink features implemented by the ``nfp``
+device driver.
+
+Parameters
+==========
+
+.. list-table:: Generic parameters implemented
+
+ * - Name
+ - Mode
+ * - ``fw_load_policy``
+ - permanent
+ * - ``reset_dev_on_drv_probe``
+ - permanent
+
+Info versions
+=============
+
+The ``nfp`` driver reports the following versions
+
+.. list-table:: devlink info versions implemented
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``board.id``
+ - fixed
+ - Part number identifying the board design
+ * - ``board.rev``
+ - fixed
+ - Revision of the board design
+ * - ``board.manufacture``
+ - fixed
+ - Vendor of the board design
+ * - ``board.model``
+ - fixed
+ - Model name of the board design
+ * - ``fw.bundle_id``
+ - stored, running
+ - Firmware bundle id
+ * - ``fw.mgmt``
+ - stored, running
+ - Version of the management firmware
+ * - ``fw.cpld``
+ - stored, running
+ - The CPLD firmware component version
+ * - ``fw.app``
+ - stored, running
+ - The APP firmware component version
+ * - ``fw.undi``
+ - stored, running
+ - The UNDI firmware component version
+ * - ``fw.ncsi``
+ - stored, running
+ - The NSCI firmware component version
+ * - ``chip.init``
+ - stored, running
+ - The CFGR firmware component version
diff --git a/Documentation/networking/devlink/qed.rst b/Documentation/networking/devlink/qed.rst
new file mode 100644
index 000000000000..805c6f63621a
--- /dev/null
+++ b/Documentation/networking/devlink/qed.rst
@@ -0,0 +1,26 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================
+qed devlink support
+===================
+
+This document describes the devlink features implemented by the ``qed`` core
+device driver.
+
+Parameters
+==========
+
+The ``qed`` driver implements the following driver-specific parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``iwarp_cmt``
+ - Boolean
+ - runtime
+ - Enable iWARP functionality for 100g devices. Note that this impacts
+ L2 performance, and is therefore not enabled by default.
diff --git a/Documentation/networking/devlink/ti-cpsw-switch.rst b/Documentation/networking/devlink/ti-cpsw-switch.rst
new file mode 100644
index 000000000000..dc399e32abaa
--- /dev/null
+++ b/Documentation/networking/devlink/ti-cpsw-switch.rst
@@ -0,0 +1,31 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============================
+ti-cpsw-switch devlink support
+==============================
+
+This document describes the devlink features implemented by the ``ti-cpsw-switch``
+device driver.
+
+Parameters
+==========
+
+The ``ti-cpsw-switch`` driver implements the following driver-specific
+parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``ale_bypass``
+ - Boolean
+ - runtime
+ - Enables ALE_CONTROL(4).BYPASS mode for debugging purposes. In this
+ mode, all packets will be sent to the host port only.
+ * - ``switch_mode``
+ - Boolean
+ - runtime
+ - Enable switch mode
diff --git a/Documentation/networking/dsa/sja1105.rst b/Documentation/networking/dsa/sja1105.rst
index eef20d0bcf7c..64553d8d91cb 100644
--- a/Documentation/networking/dsa/sja1105.rst
+++ b/Documentation/networking/dsa/sja1105.rst
@@ -230,12 +230,6 @@ simultaneously on two ports. The driver checks the consistency of the schedules
against this restriction and errors out when appropriate. Schedule analysis is
needed to avoid this, which is outside the scope of the document.
-At the moment, the time-aware scheduler can only be triggered based on a
-standalone clock and not based on PTP time. This means the base-time argument
-from tc-taprio is ignored and the schedule starts right away. It also means it
-is more difficult to phase-align the scheduler with the other devices in the
-network.
-
Device Tree bindings and board design
=====================================
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
new file mode 100644
index 000000000000..f1f868479ceb
--- /dev/null
+++ b/Documentation/networking/ethtool-netlink.rst
@@ -0,0 +1,618 @@
+=============================
+Netlink interface for ethtool
+=============================
+
+
+Basic information
+=================
+
+Netlink interface for ethtool uses generic netlink family ``ethtool``
+(userspace application should use macros ``ETHTOOL_GENL_NAME`` and
+``ETHTOOL_GENL_VERSION`` defined in ``<linux/ethtool_netlink.h>`` uapi
+header). This family does not use a specific header, all information in
+requests and replies is passed using netlink attributes.
+
+The ethtool netlink interface uses extended ACK for error and warning
+reporting, userspace application developers are encouraged to make these
+messages available to user in a suitable way.
+
+Requests can be divided into three categories: "get" (retrieving information),
+"set" (setting parameters) and "action" (invoking an action).
+
+All "set" and "action" type requests require admin privileges
+(``CAP_NET_ADMIN`` in the namespace). Most "get" type requests are allowed for
+anyone but there are exceptions (where the response contains sensitive
+information). In some cases, the request as such is allowed for anyone but
+unprivileged users have attributes with sensitive information (e.g.
+wake-on-lan password) omitted.
+
+
+Conventions
+===========
+
+Attributes which represent a boolean value usually use NLA_U8 type so that we
+can distinguish three states: "on", "off" and "not present" (meaning the
+information is not available in "get" requests or value is not to be changed
+in "set" requests). For these attributes, the "true" value should be passed as
+number 1 but any non-zero value should be understood as "true" by recipient.
+In the tables below, "bool" denotes NLA_U8 attributes interpreted in this way.
+
+In the message structure descriptions below, if an attribute name is suffixed
+with "+", parent nest can contain multiple attributes of the same type. This
+implements an array of entries.
+
+
+Request header
+==============
+
+Each request or reply message contains a nested attribute with common header.
+Structure of this header is
+
+ ============================== ====== =============================
+ ``ETHTOOL_A_HEADER_DEV_INDEX`` u32 device ifindex
+ ``ETHTOOL_A_HEADER_DEV_NAME`` string device name
+ ``ETHTOOL_A_HEADER_FLAGS`` u32 flags common for all requests
+ ============================== ====== =============================
+
+``ETHTOOL_A_HEADER_DEV_INDEX`` and ``ETHTOOL_A_HEADER_DEV_NAME`` identify the
+device message relates to. One of them is sufficient in requests, if both are
+used, they must identify the same device. Some requests, e.g. global string
+sets, do not require device identification. Most ``GET`` requests also allow
+dump requests without device identification to query the same information for
+all devices providing it (each device in a separate message).
+
+``ETHTOOL_A_HEADER_FLAGS`` is a bitmap of request flags common for all request
+types. The interpretation of these flags is the same for all request types but
+the flags may not apply to requests. Recognized flags are:
+
+ ================================= ===================================
+ ``ETHTOOL_FLAG_COMPACT_BITSETS`` use compact format bitsets in reply
+ ``ETHTOOL_FLAG_OMIT_REPLY`` omit optional reply (_SET and _ACT)
+ ================================= ===================================
+
+New request flags should follow the general idea that if the flag is not set,
+the behaviour is backward compatible, i.e. requests from old clients not aware
+of the flag should be interpreted the way the client expects. A client must
+not set flags it does not understand.
+
+
+Bit sets
+========
+
+For short bitmaps of (reasonably) fixed length, standard ``NLA_BITFIELD32``
+type is used. For arbitrary length bitmaps, ethtool netlink uses a nested
+attribute with contents of one of two forms: compact (two binary bitmaps
+representing bit values and mask of affected bits) and bit-by-bit (list of
+bits identified by either index or name).
+
+Verbose (bit-by-bit) bitsets allow sending symbolic names for bits together
+with their values which saves a round trip (when the bitset is passed in a
+request) or at least a second request (when the bitset is in a reply). This is
+useful for one shot applications like traditional ethtool command. On the
+other hand, long running applications like ethtool monitor (displaying
+notifications) or network management daemons may prefer fetching the names
+only once and using compact form to save message size. Notifications from
+ethtool netlink interface always use compact form for bitsets.
+
+A bitset can represent either a value/mask pair (``ETHTOOL_A_BITSET_NOMASK``
+not set) or a single bitmap (``ETHTOOL_A_BITSET_NOMASK`` set). In requests
+modifying a bitmap, the former changes the bit set in mask to values set in
+value and preserves the rest; the latter sets the bits set in the bitmap and
+clears the rest.
+
+Compact form: nested (bitset) atrribute contents:
+
+ ============================ ====== ============================
+ ``ETHTOOL_A_BITSET_NOMASK`` flag no mask, only a list
+ ``ETHTOOL_A_BITSET_SIZE`` u32 number of significant bits
+ ``ETHTOOL_A_BITSET_VALUE`` binary bitmap of bit values
+ ``ETHTOOL_A_BITSET_MASK`` binary bitmap of valid bits
+ ============================ ====== ============================
+
+Value and mask must have length at least ``ETHTOOL_A_BITSET_SIZE`` bits
+rounded up to a multiple of 32 bits. They consist of 32-bit words in host byte
+order, words ordered from least significant to most significant (i.e. the same
+way as bitmaps are passed with ioctl interface).
+
+For compact form, ``ETHTOOL_A_BITSET_SIZE`` and ``ETHTOOL_A_BITSET_VALUE`` are
+mandatory. ``ETHTOOL_A_BITSET_MASK`` attribute is mandatory if
+``ETHTOOL_A_BITSET_NOMASK`` is not set (bitset represents a value/mask pair);
+if ``ETHTOOL_A_BITSET_NOMASK`` is not set, ``ETHTOOL_A_BITSET_MASK`` is not
+allowed (bitset represents a single bitmap.
+
+Kernel bit set length may differ from userspace length if older application is
+used on newer kernel or vice versa. If userspace bitmap is longer, an error is
+issued only if the request actually tries to set values of some bits not
+recognized by kernel.
+
+Bit-by-bit form: nested (bitset) attribute contents:
+
+ +------------------------------------+--------+-----------------------------+
+ | ``ETHTOOL_A_BITSET_NOMASK`` | flag | no mask, only a list |
+ +------------------------------------+--------+-----------------------------+
+ | ``ETHTOOL_A_BITSET_SIZE`` | u32 | number of significant bits |
+ +------------------------------------+--------+-----------------------------+
+ | ``ETHTOOL_A_BITSET_BITS`` | nested | array of bits |
+ +-+----------------------------------+--------+-----------------------------+
+ | | ``ETHTOOL_A_BITSET_BITS_BIT+`` | nested | one bit |
+ +-+-+--------------------------------+--------+-----------------------------+
+ | | | ``ETHTOOL_A_BITSET_BIT_INDEX`` | u32 | bit index (0 for LSB) |
+ +-+-+--------------------------------+--------+-----------------------------+
+ | | | ``ETHTOOL_A_BITSET_BIT_NAME`` | string | bit name |
+ +-+-+--------------------------------+--------+-----------------------------+
+ | | | ``ETHTOOL_A_BITSET_BIT_VALUE`` | flag | present if bit is set |
+ +-+-+--------------------------------+--------+-----------------------------+
+
+Bit size is optional for bit-by-bit form. ``ETHTOOL_A_BITSET_BITS`` nest can
+only contain ``ETHTOOL_A_BITSET_BITS_BIT`` attributes but there can be an
+arbitrary number of them. A bit may be identified by its index or by its
+name. When used in requests, listed bits are set to 0 or 1 according to
+``ETHTOOL_A_BITSET_BIT_VALUE``, the rest is preserved. A request fails if
+index exceeds kernel bit length or if name is not recognized.
+
+When ``ETHTOOL_A_BITSET_NOMASK`` flag is present, bitset is interpreted as
+a simple bitmap. ``ETHTOOL_A_BITSET_BIT_VALUE`` attributes are not used in
+such case. Such bitset represents a bitmap with listed bits set and the rest
+zero.
+
+In requests, application can use either form. Form used by kernel in reply is
+determined by ``ETHTOOL_FLAG_COMPACT_BITSETS`` flag in flags field of request
+header. Semantics of value and mask depends on the attribute.
+
+
+List of message types
+=====================
+
+All constants identifying message types use ``ETHTOOL_CMD_`` prefix and suffix
+according to message purpose:
+
+ ============== ======================================
+ ``_GET`` userspace request to retrieve data
+ ``_SET`` userspace request to set data
+ ``_ACT`` userspace request to perform an action
+ ``_GET_REPLY`` kernel reply to a ``GET`` request
+ ``_SET_REPLY`` kernel reply to a ``SET`` request
+ ``_ACT_REPLY`` kernel reply to an ``ACT`` request
+ ``_NTF`` kernel notification
+ ============== ======================================
+
+Userspace to kernel:
+
+ ===================================== ================================
+ ``ETHTOOL_MSG_STRSET_GET`` get string set
+ ``ETHTOOL_MSG_LINKINFO_GET`` get link settings
+ ``ETHTOOL_MSG_LINKINFO_SET`` set link settings
+ ``ETHTOOL_MSG_LINKMODES_GET`` get link modes info
+ ``ETHTOOL_MSG_LINKMODES_SET`` set link modes info
+ ``ETHTOOL_MSG_LINKSTATE_GET`` get link state
+ ``ETHTOOL_MSG_DEBUG_GET`` get debugging settings
+ ``ETHTOOL_MSG_DEBUG_SET`` set debugging settings
+ ``ETHTOOL_MSG_WOL_GET`` get wake-on-lan settings
+ ``ETHTOOL_MSG_WOL_SET`` set wake-on-lan settings
+ ===================================== ================================
+
+Kernel to userspace:
+
+ ===================================== =================================
+ ``ETHTOOL_MSG_STRSET_GET_REPLY`` string set contents
+ ``ETHTOOL_MSG_LINKINFO_GET_REPLY`` link settings
+ ``ETHTOOL_MSG_LINKINFO_NTF`` link settings notification
+ ``ETHTOOL_MSG_LINKMODES_GET_REPLY`` link modes info
+ ``ETHTOOL_MSG_LINKMODES_NTF`` link modes notification
+ ``ETHTOOL_MSG_LINKSTATE_GET_REPLY`` link state info
+ ``ETHTOOL_MSG_DEBUG_GET_REPLY`` debugging settings
+ ``ETHTOOL_MSG_DEBUG_NTF`` debugging settings notification
+ ``ETHTOOL_MSG_WOL_GET_REPLY`` wake-on-lan settings
+ ``ETHTOOL_MSG_WOL_NTF`` wake-on-lan settings notification
+ ===================================== =================================
+
+``GET`` requests are sent by userspace applications to retrieve device
+information. They usually do not contain any message specific attributes.
+Kernel replies with corresponding "GET_REPLY" message. For most types, ``GET``
+request with ``NLM_F_DUMP`` and no device identification can be used to query
+the information for all devices supporting the request.
+
+If the data can be also modified, corresponding ``SET`` message with the same
+layout as corresponding ``GET_REPLY`` is used to request changes. Only
+attributes where a change is requested are included in such request (also, not
+all attributes may be changed). Replies to most ``SET`` request consist only
+of error code and extack; if kernel provides additional data, it is sent in
+the form of corresponding ``SET_REPLY`` message which can be suppressed by
+setting ``ETHTOOL_FLAG_OMIT_REPLY`` flag in request header.
+
+Data modification also triggers sending a ``NTF`` message with a notification.
+These usually bear only a subset of attributes which was affected by the
+change. The same notification is issued if the data is modified using other
+means (mostly ioctl ethtool interface). Unlike notifications from ethtool
+netlink code which are only sent if something actually changed, notifications
+triggered by ioctl interface may be sent even if the request did not actually
+change any data.
+
+``ACT`` messages request kernel (driver) to perform a specific action. If some
+information is reported by kernel (which can be suppressed by setting
+``ETHTOOL_FLAG_OMIT_REPLY`` flag in request header), the reply takes form of
+an ``ACT_REPLY`` message. Performing an action also triggers a notification
+(``NTF`` message).
+
+Later sections describe the format and semantics of these messages.
+
+
+STRSET_GET
+==========
+
+Requests contents of a string set as provided by ioctl commands
+``ETHTOOL_GSSET_INFO`` and ``ETHTOOL_GSTRINGS.`` String sets are not user
+writeable so that the corresponding ``STRSET_SET`` message is only used in
+kernel replies. There are two types of string sets: global (independent of
+a device, e.g. device feature names) and device specific (e.g. device private
+flags).
+
+Request contents:
+
+ +---------------------------------------+--------+------------------------+
+ | ``ETHTOOL_A_STRSET_HEADER`` | nested | request header |
+ +---------------------------------------+--------+------------------------+
+ | ``ETHTOOL_A_STRSET_STRINGSETS`` | nested | string set to request |
+ +-+-------------------------------------+--------+------------------------+
+ | | ``ETHTOOL_A_STRINGSETS_STRINGSET+`` | nested | one string set |
+ +-+-+-----------------------------------+--------+------------------------+
+ | | | ``ETHTOOL_A_STRINGSET_ID`` | u32 | set id |
+ +-+-+-----------------------------------+--------+------------------------+
+
+Kernel response contents:
+
+ +---------------------------------------+--------+-----------------------+
+ | ``ETHTOOL_A_STRSET_HEADER`` | nested | reply header |
+ +---------------------------------------+--------+-----------------------+
+ | ``ETHTOOL_A_STRSET_STRINGSETS`` | nested | array of string sets |
+ +-+-------------------------------------+--------+-----------------------+
+ | | ``ETHTOOL_A_STRINGSETS_STRINGSET+`` | nested | one string set |
+ +-+-+-----------------------------------+--------+-----------------------+
+ | | | ``ETHTOOL_A_STRINGSET_ID`` | u32 | set id |
+ +-+-+-----------------------------------+--------+-----------------------+
+ | | | ``ETHTOOL_A_STRINGSET_COUNT`` | u32 | number of strings |
+ +-+-+-----------------------------------+--------+-----------------------+
+ | | | ``ETHTOOL_A_STRINGSET_STRINGS`` | nested | array of strings |
+ +-+-+-+---------------------------------+--------+-----------------------+
+ | | | | ``ETHTOOL_A_STRINGS_STRING+`` | nested | one string |
+ +-+-+-+-+-------------------------------+--------+-----------------------+
+ | | | | | ``ETHTOOL_A_STRING_INDEX`` | u32 | string index |
+ +-+-+-+-+-------------------------------+--------+-----------------------+
+ | | | | | ``ETHTOOL_A_STRING_VALUE`` | string | string value |
+ +-+-+-+-+-------------------------------+--------+-----------------------+
+ | ``ETHTOOL_A_STRSET_COUNTS_ONLY`` | flag | return only counts |
+ +---------------------------------------+--------+-----------------------+
+
+Device identification in request header is optional. Depending on its presence
+a and ``NLM_F_DUMP`` flag, there are three type of ``STRSET_GET`` requests:
+
+ - no ``NLM_F_DUMP,`` no device: get "global" stringsets
+ - no ``NLM_F_DUMP``, with device: get string sets related to the device
+ - ``NLM_F_DUMP``, no device: get device related string sets for all devices
+
+If there is no ``ETHTOOL_A_STRSET_STRINGSETS`` array, all string sets of
+requested type are returned, otherwise only those specified in the request.
+Flag ``ETHTOOL_A_STRSET_COUNTS_ONLY`` tells kernel to only return string
+counts of the sets, not the actual strings.
+
+
+LINKINFO_GET
+============
+
+Requests link settings as provided by ``ETHTOOL_GLINKSETTINGS`` except for
+link modes and autonegotiation related information. The request does not use
+any attributes.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKINFO_HEADER`` nested request header
+ ==================================== ====== ==========================
+
+Kernel response contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKINFO_HEADER`` nested reply header
+ ``ETHTOOL_A_LINKINFO_PORT`` u8 physical port
+ ``ETHTOOL_A_LINKINFO_PHYADDR`` u8 phy MDIO address
+ ``ETHTOOL_A_LINKINFO_TP_MDIX`` u8 MDI(-X) status
+ ``ETHTOOL_A_LINKINFO_TP_MDIX_CTRL`` u8 MDI(-X) control
+ ``ETHTOOL_A_LINKINFO_TRANSCEIVER`` u8 transceiver
+ ==================================== ====== ==========================
+
+Attributes and their values have the same meaning as matching members of the
+corresponding ioctl structures.
+
+``LINKINFO_GET`` allows dump requests (kernel returns reply message for all
+devices supporting the request).
+
+
+LINKINFO_SET
+============
+
+``LINKINFO_SET`` request allows setting some of the attributes reported by
+``LINKINFO_GET``.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKINFO_HEADER`` nested request header
+ ``ETHTOOL_A_LINKINFO_PORT`` u8 physical port
+ ``ETHTOOL_A_LINKINFO_PHYADDR`` u8 phy MDIO address
+ ``ETHTOOL_A_LINKINFO_TP_MDIX_CTRL`` u8 MDI(-X) control
+ ==================================== ====== ==========================
+
+MDI(-X) status and transceiver cannot be set, request with the corresponding
+attributes is rejected.
+
+
+LINKMODES_GET
+=============
+
+Requests link modes (supported, advertised and peer advertised) and related
+information (autonegotiation status, link speed and duplex) as provided by
+``ETHTOOL_GLINKSETTINGS``. The request does not use any attributes.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKMODES_HEADER`` nested request header
+ ==================================== ====== ==========================
+
+Kernel response contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKMODES_HEADER`` nested reply header
+ ``ETHTOOL_A_LINKMODES_AUTONEG`` u8 autonegotiation status
+ ``ETHTOOL_A_LINKMODES_OURS`` bitset advertised link modes
+ ``ETHTOOL_A_LINKMODES_PEER`` bitset partner link modes
+ ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s)
+ ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode
+ ==================================== ====== ==========================
+
+For ``ETHTOOL_A_LINKMODES_OURS``, value represents advertised modes and mask
+represents supported modes. ``ETHTOOL_A_LINKMODES_PEER`` in the reply is a bit
+list.
+
+``LINKMODES_GET`` allows dump requests (kernel returns reply messages for all
+devices supporting the request).
+
+
+LINKMODES_SET
+=============
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKMODES_HEADER`` nested request header
+ ``ETHTOOL_A_LINKMODES_AUTONEG`` u8 autonegotiation status
+ ``ETHTOOL_A_LINKMODES_OURS`` bitset advertised link modes
+ ``ETHTOOL_A_LINKMODES_PEER`` bitset partner link modes
+ ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s)
+ ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode
+ ==================================== ====== ==========================
+
+``ETHTOOL_A_LINKMODES_OURS`` bit set allows setting advertised link modes. If
+autonegotiation is on (either set now or kept from before), advertised modes
+are not changed (no ``ETHTOOL_A_LINKMODES_OURS`` attribute) and at least one
+of speed and duplex is specified, kernel adjusts advertised modes to all
+supported modes matching speed, duplex or both (whatever is specified). This
+autoselection is done on ethtool side with ioctl interface, netlink interface
+is supposed to allow requesting changes without knowing what exactly kernel
+supports.
+
+
+LINKSTATE_GET
+=============
+
+Requests link state information. At the moment, only link up/down flag (as
+provided by ``ETHTOOL_GLINK`` ioctl command) is provided but some future
+extensions are planned (e.g. link down reason). This request does not have any
+attributes.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKSTATE_HEADER`` nested request header
+ ==================================== ====== ==========================
+
+Kernel response contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_LINKSTATE_HEADER`` nested reply header
+ ``ETHTOOL_A_LINKSTATE_LINK`` bool link state (up/down)
+ ==================================== ====== ==========================
+
+For most NIC drivers, the value of ``ETHTOOL_A_LINKSTATE_LINK`` returns
+carrier flag provided by ``netif_carrier_ok()`` but there are drivers which
+define their own handler.
+
+``LINKSTATE_GET`` allows dump requests (kernel returns reply messages for all
+devices supporting the request).
+
+
+DEBUG_GET
+=========
+
+Requests debugging settings of a device. At the moment, only message mask is
+provided.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_DEBUG_HEADER`` nested request header
+ ==================================== ====== ==========================
+
+Kernel response contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_DEBUG_HEADER`` nested reply header
+ ``ETHTOOL_A_DEBUG_MSGMASK`` bitset message mask
+ ==================================== ====== ==========================
+
+The message mask (``ETHTOOL_A_DEBUG_MSGMASK``) is equal to message level as
+provided by ``ETHTOOL_GMSGLVL`` and set by ``ETHTOOL_SMSGLVL`` in ioctl
+interface. While it is called message level there for historical reasons, most
+drivers and almost all newer drivers use it as a mask of enabled message
+classes (represented by ``NETIF_MSG_*`` constants); therefore netlink
+interface follows its actual use in practice.
+
+``DEBUG_GET`` allows dump requests (kernel returns reply messages for all
+devices supporting the request).
+
+
+DEBUG_SET
+=========
+
+Set or update debugging settings of a device. At the moment, only message mask
+is supported.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_DEBUG_HEADER`` nested request header
+ ``ETHTOOL_A_DEBUG_MSGMASK`` bitset message mask
+ ==================================== ====== ==========================
+
+``ETHTOOL_A_DEBUG_MSGMASK`` bit set allows setting or modifying mask of
+enabled debugging message types for the device.
+
+
+WOL_GET
+=======
+
+Query device wake-on-lan settings. Unlike most "GET" type requests,
+``ETHTOOL_MSG_WOL_GET`` requires (netns) ``CAP_NET_ADMIN`` privileges as it
+(potentially) provides SecureOn(tm) password which is confidential.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_WOL_HEADER`` nested request header
+ ==================================== ====== ==========================
+
+Kernel response contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_WOL_HEADER`` nested reply header
+ ``ETHTOOL_A_WOL_MODES`` bitset mask of enabled WoL modes
+ ``ETHTOOL_A_WOL_SOPASS`` binary SecureOn(tm) password
+ ==================================== ====== ==========================
+
+In reply, ``ETHTOOL_A_WOL_MODES`` mask consists of modes supported by the
+device, value of modes which are enabled. ``ETHTOOL_A_WOL_SOPASS`` is only
+included in reply if ``WAKE_MAGICSECURE`` mode is supported.
+
+
+WOL_SET
+=======
+
+Set or update wake-on-lan settings.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_WOL_HEADER`` nested request header
+ ``ETHTOOL_A_WOL_MODES`` bitset enabled WoL modes
+ ``ETHTOOL_A_WOL_SOPASS`` binary SecureOn(tm) password
+ ==================================== ====== ==========================
+
+``ETHTOOL_A_WOL_SOPASS`` is only allowed for devices supporting
+``WAKE_MAGICSECURE`` mode.
+
+
+Request translation
+===================
+
+The following table maps ioctl commands to netlink commands providing their
+functionality. Entries with "n/a" in right column are commands which do not
+have their netlink replacement yet.
+
+ =================================== =====================================
+ ioctl command netlink command
+ =================================== =====================================
+ ``ETHTOOL_GSET`` ``ETHTOOL_MSG_LINKINFO_GET``
+ ``ETHTOOL_MSG_LINKMODES_GET``
+ ``ETHTOOL_SSET`` ``ETHTOOL_MSG_LINKINFO_SET``
+ ``ETHTOOL_MSG_LINKMODES_SET``
+ ``ETHTOOL_GDRVINFO`` n/a
+ ``ETHTOOL_GREGS`` n/a
+ ``ETHTOOL_GWOL`` ``ETHTOOL_MSG_WOL_GET``
+ ``ETHTOOL_SWOL`` ``ETHTOOL_MSG_WOL_SET``
+ ``ETHTOOL_GMSGLVL`` ``ETHTOOL_MSG_DEBUG_GET``
+ ``ETHTOOL_SMSGLVL`` ``ETHTOOL_MSG_DEBUG_SET``
+ ``ETHTOOL_NWAY_RST`` n/a
+ ``ETHTOOL_GLINK`` ``ETHTOOL_MSG_LINKSTATE_GET``
+ ``ETHTOOL_GEEPROM`` n/a
+ ``ETHTOOL_SEEPROM`` n/a
+ ``ETHTOOL_GCOALESCE`` n/a
+ ``ETHTOOL_SCOALESCE`` n/a
+ ``ETHTOOL_GRINGPARAM`` n/a
+ ``ETHTOOL_SRINGPARAM`` n/a
+ ``ETHTOOL_GPAUSEPARAM`` n/a
+ ``ETHTOOL_SPAUSEPARAM`` n/a
+ ``ETHTOOL_GRXCSUM`` n/a
+ ``ETHTOOL_SRXCSUM`` n/a
+ ``ETHTOOL_GTXCSUM`` n/a
+ ``ETHTOOL_STXCSUM`` n/a
+ ``ETHTOOL_GSG`` n/a
+ ``ETHTOOL_SSG`` n/a
+ ``ETHTOOL_TEST`` n/a
+ ``ETHTOOL_GSTRINGS`` ``ETHTOOL_MSG_STRSET_GET``
+ ``ETHTOOL_PHYS_ID`` n/a
+ ``ETHTOOL_GSTATS`` n/a
+ ``ETHTOOL_GTSO`` n/a
+ ``ETHTOOL_STSO`` n/a
+ ``ETHTOOL_GPERMADDR`` rtnetlink ``RTM_GETLINK``
+ ``ETHTOOL_GUFO`` n/a
+ ``ETHTOOL_SUFO`` n/a
+ ``ETHTOOL_GGSO`` n/a
+ ``ETHTOOL_SGSO`` n/a
+ ``ETHTOOL_GFLAGS`` n/a
+ ``ETHTOOL_SFLAGS`` n/a
+ ``ETHTOOL_GPFLAGS`` n/a
+ ``ETHTOOL_SPFLAGS`` n/a
+ ``ETHTOOL_GRXFH`` n/a
+ ``ETHTOOL_SRXFH`` n/a
+ ``ETHTOOL_GGRO`` n/a
+ ``ETHTOOL_SGRO`` n/a
+ ``ETHTOOL_GRXRINGS`` n/a
+ ``ETHTOOL_GRXCLSRLCNT`` n/a
+ ``ETHTOOL_GRXCLSRULE`` n/a
+ ``ETHTOOL_GRXCLSRLALL`` n/a
+ ``ETHTOOL_SRXCLSRLDEL`` n/a
+ ``ETHTOOL_SRXCLSRLINS`` n/a
+ ``ETHTOOL_FLASHDEV`` n/a
+ ``ETHTOOL_RESET`` n/a
+ ``ETHTOOL_SRXNTUPLE`` n/a
+ ``ETHTOOL_GRXNTUPLE`` n/a
+ ``ETHTOOL_GSSET_INFO`` ``ETHTOOL_MSG_STRSET_GET``
+ ``ETHTOOL_GRXFHINDIR`` n/a
+ ``ETHTOOL_SRXFHINDIR`` n/a
+ ``ETHTOOL_GFEATURES`` n/a
+ ``ETHTOOL_SFEATURES`` n/a
+ ``ETHTOOL_GCHANNELS`` n/a
+ ``ETHTOOL_SCHANNELS`` n/a
+ ``ETHTOOL_SET_DUMP`` n/a
+ ``ETHTOOL_GET_DUMP_FLAG`` n/a
+ ``ETHTOOL_GET_DUMP_DATA`` n/a
+ ``ETHTOOL_GET_TS_INFO`` n/a
+ ``ETHTOOL_GMODULEINFO`` n/a
+ ``ETHTOOL_GMODULEEEPROM`` n/a
+ ``ETHTOOL_GEEE`` n/a
+ ``ETHTOOL_SEEE`` n/a
+ ``ETHTOOL_GRSSH`` n/a
+ ``ETHTOOL_SRSSH`` n/a
+ ``ETHTOOL_GTUNABLE`` n/a
+ ``ETHTOOL_STUNABLE`` n/a
+ ``ETHTOOL_GPHYSTATS`` n/a
+ ``ETHTOOL_PERQUEUE`` n/a
+ ``ETHTOOL_GLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_GET``
+ ``ETHTOOL_MSG_LINKMODES_GET``
+ ``ETHTOOL_SLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_SET``
+ ``ETHTOOL_MSG_LINKMODES_SET``
+ ``ETHTOOL_PHY_GTUNABLE`` n/a
+ ``ETHTOOL_PHY_STUNABLE`` n/a
+ ``ETHTOOL_GFECPARAM`` n/a
+ ``ETHTOOL_SFECPARAM`` n/a
+ =================================== =====================================
diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst
index 5acab1290e03..d07d9855dcd3 100644
--- a/Documentation/networking/index.rst
+++ b/Documentation/networking/index.rst
@@ -13,9 +13,8 @@ Contents:
can_ucan_protocol
device_drivers/index
dsa/index
- devlink-info-versions
- devlink-trap
- devlink-trap-netdevsim
+ devlink/index
+ ethtool-netlink
ieee802154
j1939
kapi
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index fd26788e8c96..5f53faff4e25 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -479,6 +479,10 @@ tcp_no_metrics_save - BOOLEAN
degradation. If set, TCP will not cache metrics on closing
connections.
+tcp_no_ssthresh_metrics_save - BOOLEAN
+ Controls whether TCP saves ssthresh metrics in the route cache.
+ Default is 1, which disables ssthresh metrics.
+
tcp_orphan_retries - INTEGER
This value influences the timeout of a locally closed TCP connection,
when RTO retransmissions remain unacknowledged.
@@ -603,7 +607,7 @@ tcp_synack_retries - INTEGER
with the current initial RTO of 1second. With this the final timeout
for a passive TCP connection will happen after 63seconds.
-tcp_syncookies - BOOLEAN
+tcp_syncookies - INTEGER
Only valid when the kernel was compiled with CONFIG_SYN_COOKIES
Send out syncookies when the syn backlog queue of a socket
overflows. This is to prevent against the common 'SYN flood attack'
diff --git a/Documentation/networking/j1939.rst b/Documentation/networking/j1939.rst
index dc60b13fcd09..f5be243d250a 100644
--- a/Documentation/networking/j1939.rst
+++ b/Documentation/networking/j1939.rst
@@ -339,7 +339,7 @@ To claim an address following code example can be used:
.pgn = J1939_PGN_ADDRESS_CLAIMED,
.pgn_mask = J1939_PGN_PDU1_MAX,
}, {
- .pgn = J1939_PGN_ADDRESS_REQUEST,
+ .pgn = J1939_PGN_REQUEST,
.pgn_mask = J1939_PGN_PDU1_MAX,
}, {
.pgn = J1939_PGN_ADDRESS_COMMANDED,
diff --git a/Documentation/networking/netdev-FAQ.rst b/Documentation/networking/netdev-FAQ.rst
index 642fa963be3c..d5c9320901c3 100644
--- a/Documentation/networking/netdev-FAQ.rst
+++ b/Documentation/networking/netdev-FAQ.rst
@@ -34,8 +34,8 @@ the names, the ``net`` tree is for fixes to existing code already in the
mainline tree from Linus, and ``net-next`` is where the new code goes
for the future release. You can find the trees here:
-- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
+- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
Q: How often do changes from these trees make it to the mainline Linus tree?
----------------------------------------------------------------------------
diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst
index e0a7c7af6525..1e4735cc0553 100644
--- a/Documentation/networking/phy.rst
+++ b/Documentation/networking/phy.rst
@@ -267,6 +267,24 @@ Some of the interface modes are described below:
duplex, pause or other settings. This is dependent on the MAC and/or
PHY behaviour.
+``PHY_INTERFACE_MODE_10GBASER``
+ This is the IEEE 802.3 Clause 49 defined 10GBASE-R protocol used with
+ various different mediums. Please refer to the IEEE standard for a
+ definition of this.
+
+ Note: 10GBASE-R is just one protocol that can be used with XFI and SFI.
+ XFI and SFI permit multiple protocols over a single SERDES lane, and
+ also defines the electrical characteristics of the signals with a host
+ compliance board plugged into the host XFP/SFP connector. Therefore,
+ XFI and SFI are not PHY interface types in their own right.
+
+``PHY_INTERFACE_MODE_10GKR``
+ This is the IEEE 802.3 Clause 49 defined 10GBASE-R with Clause 73
+ autonegotiation. Please refer to the IEEE standard for further
+ information.
+
+ Note: due to legacy usage, some 10GBASE-R usage incorrectly makes
+ use of this definition.
Pause frames / flow control
===========================
diff --git a/Documentation/networking/sfp-phylink.rst b/Documentation/networking/sfp-phylink.rst
index a5e00a159d21..d753a309f9d1 100644
--- a/Documentation/networking/sfp-phylink.rst
+++ b/Documentation/networking/sfp-phylink.rst
@@ -251,7 +251,8 @@ this documentation.
phylink_mac_change(priv->phylink, link_is_up);
where ``link_is_up`` is true if the link is currently up or false
- otherwise.
+ otherwise. If a MAC is unable to provide these interrupts, then
+ it should set ``priv->phylink_config.pcs_poll = true;`` in step 9.
11. Verify that the driver does not call::
diff --git a/Documentation/nvdimm/maintainer-entry-profile.rst b/Documentation/nvdimm/maintainer-entry-profile.rst
index 77081fd9be95..efe37adadcea 100644
--- a/Documentation/nvdimm/maintainer-entry-profile.rst
+++ b/Documentation/nvdimm/maintainer-entry-profile.rst
@@ -33,7 +33,8 @@ Those tests need to be passed before the patches go upstream, but not
necessarily before initial posting. Contact the list if you need help
getting the test environment set up.
-### ACPI Device Specific Methods (_DSM)
+ACPI Device Specific Methods (_DSM)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Before patches enabling for a new _DSM family will be considered it must
be assigned a format-interface-code from the NVDIMM Sub-team of the ACPI
Specification Working Group. In general, the stance of the subsystem is
diff --git a/Documentation/padata.txt b/Documentation/padata.txt
deleted file mode 100644
index b37ba1eaace3..000000000000
--- a/Documentation/padata.txt
+++ /dev/null
@@ -1,163 +0,0 @@
-=======================================
-The padata parallel execution mechanism
-=======================================
-
-:Last updated: for 2.6.36
-
-Padata is a mechanism by which the kernel can farm work out to be done in
-parallel on multiple CPUs while retaining the ordering of tasks. It was
-developed for use with the IPsec code, which needs to be able to perform
-encryption and decryption on large numbers of packets without reordering
-those packets. The crypto developers made a point of writing padata in a
-sufficiently general fashion that it could be put to other uses as well.
-
-The first step in using padata is to set up a padata_instance structure for
-overall control of how tasks are to be run::
-
- #include <linux/padata.h>
-
- struct padata_instance *padata_alloc(const char *name,
- const struct cpumask *pcpumask,
- const struct cpumask *cbcpumask);
-
-'name' simply identifies the instance.
-
-The pcpumask describes which processors will be used to execute work
-submitted to this instance in parallel. The cbcpumask defines which
-processors are allowed to be used as the serialization callback processor.
-The workqueue wq is where the work will actually be done; it should be
-a multithreaded queue, naturally.
-
-To allocate a padata instance with the cpu_possible_mask for both
-cpumasks this helper function can be used::
-
- struct padata_instance *padata_alloc_possible(struct workqueue_struct *wq);
-
-Note: Padata maintains two kinds of cpumasks internally. The user supplied
-cpumasks, submitted by padata_alloc/padata_alloc_possible and the 'usable'
-cpumasks. The usable cpumasks are always a subset of active CPUs in the
-user supplied cpumasks; these are the cpumasks padata actually uses. So
-it is legal to supply a cpumask to padata that contains offline CPUs.
-Once an offline CPU in the user supplied cpumask comes online, padata
-is going to use it.
-
-There are functions for enabling and disabling the instance::
-
- int padata_start(struct padata_instance *pinst);
- void padata_stop(struct padata_instance *pinst);
-
-These functions are setting or clearing the "PADATA_INIT" flag;
-if that flag is not set, other functions will refuse to work.
-padata_start returns zero on success (flag set) or -EINVAL if the
-padata cpumask contains no active CPU (flag not set).
-padata_stop clears the flag and blocks until the padata instance
-is unused.
-
-The list of CPUs to be used can be adjusted with these functions::
-
- int padata_set_cpumasks(struct padata_instance *pinst,
- cpumask_var_t pcpumask,
- cpumask_var_t cbcpumask);
- int padata_set_cpumask(struct padata_instance *pinst, int cpumask_type,
- cpumask_var_t cpumask);
- int padata_add_cpu(struct padata_instance *pinst, int cpu, int mask);
- int padata_remove_cpu(struct padata_instance *pinst, int cpu, int mask);
-
-Changing the CPU masks are expensive operations, though, so it should not be
-done with great frequency.
-
-It's possible to change both cpumasks of a padata instance with
-padata_set_cpumasks by specifying the cpumasks for parallel execution (pcpumask)
-and for the serial callback function (cbcpumask). padata_set_cpumask is used to
-change just one of the cpumasks. Here cpumask_type is one of PADATA_CPU_SERIAL,
-PADATA_CPU_PARALLEL and cpumask specifies the new cpumask to use.
-To simply add or remove one CPU from a certain cpumask the functions
-padata_add_cpu/padata_remove_cpu are used. cpu specifies the CPU to add or
-remove and mask is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL.
-
-If a user is interested in padata cpumask changes, he can register to
-the padata cpumask change notifier::
-
- int padata_register_cpumask_notifier(struct padata_instance *pinst,
- struct notifier_block *nblock);
-
-To unregister from that notifier::
-
- int padata_unregister_cpumask_notifier(struct padata_instance *pinst,
- struct notifier_block *nblock);
-
-The padata cpumask change notifier notifies about changes of the usable
-cpumasks, i.e. the subset of active CPUs in the user supplied cpumask.
-
-Padata calls the notifier chain with::
-
- blocking_notifier_call_chain(&pinst->cpumask_change_notifier,
- notification_mask,
- &pd_new->cpumask);
-
-Here cpumask_change_notifier is registered notifier, notification_mask
-is one of PADATA_CPU_SERIAL, PADATA_CPU_PARALLEL and cpumask is a pointer
-to a struct padata_cpumask that contains the new cpumask information.
-
-Actually submitting work to the padata instance requires the creation of a
-padata_priv structure::
-
- struct padata_priv {
- /* Other stuff here... */
- void (*parallel)(struct padata_priv *padata);
- void (*serial)(struct padata_priv *padata);
- };
-
-This structure will almost certainly be embedded within some larger
-structure specific to the work to be done. Most of its fields are private to
-padata, but the structure should be zeroed at initialisation time, and the
-parallel() and serial() functions should be provided. Those functions will
-be called in the process of getting the work done as we will see
-momentarily.
-
-The submission of work is done with::
-
- int padata_do_parallel(struct padata_instance *pinst,
- struct padata_priv *padata, int cb_cpu);
-
-The pinst and padata structures must be set up as described above; cb_cpu
-specifies which CPU will be used for the final callback when the work is
-done; it must be in the current instance's CPU mask. The return value from
-padata_do_parallel() is zero on success, indicating that the work is in
-progress. -EBUSY means that somebody, somewhere else is messing with the
-instance's CPU mask, while -EINVAL is a complaint about cb_cpu not being
-in that CPU mask or about a not running instance.
-
-Each task submitted to padata_do_parallel() will, in turn, be passed to
-exactly one call to the above-mentioned parallel() function, on one CPU, so
-true parallelism is achieved by submitting multiple tasks. parallel() runs with
-software interrupts disabled and thus cannot sleep. The parallel()
-function gets the padata_priv structure pointer as its lone parameter;
-information about the actual work to be done is probably obtained by using
-container_of() to find the enclosing structure.
-
-Note that parallel() has no return value; the padata subsystem assumes that
-parallel() will take responsibility for the task from this point. The work
-need not be completed during this call, but, if parallel() leaves work
-outstanding, it should be prepared to be called again with a new job before
-the previous one completes. When a task does complete, parallel() (or
-whatever function actually finishes the job) should inform padata of the
-fact with a call to::
-
- void padata_do_serial(struct padata_priv *padata);
-
-At some point in the future, padata_do_serial() will trigger a call to the
-serial() function in the padata_priv structure. That call will happen on
-the CPU requested in the initial call to padata_do_parallel(); it, too, is
-run with local software interrupts disabled.
-Note that this call may be deferred for a while since the padata code takes
-pains to ensure that tasks are completed in the order in which they were
-submitted.
-
-The one remaining function in the padata API should be called to clean up
-when a padata instance is no longer needed::
-
- void padata_free(struct padata_instance *pinst);
-
-This function will busy-wait while any remaining tasks are completed, so it
-might be best not to call it while there is work outstanding.
diff --git a/Documentation/process/embargoed-hardware-issues.rst b/Documentation/process/embargoed-hardware-issues.rst
index 799580acc8de..33edae654599 100644
--- a/Documentation/process/embargoed-hardware-issues.rst
+++ b/Documentation/process/embargoed-hardware-issues.rst
@@ -1,3 +1,5 @@
+.. _embargoed_hardware_issues:
+
Embargoed hardware issues
=========================
@@ -36,7 +38,10 @@ issue according to our documented process.
The list is encrypted and email to the list can be sent by either PGP or
S/MIME encrypted and must be signed with the reporter's PGP key or S/MIME
certificate. The list's PGP key and S/MIME certificate are available from
-https://www.kernel.org/....
+the following URLs:
+
+ - PGP: https://www.kernel.org/static/files/hardware-security.asc
+ - S/MIME: https://www.kernel.org/static/files/hardware-security.crt
While hardware security issues are often handled by the affected hardware
vendor, we welcome contact from researchers or individuals who have
@@ -55,14 +60,14 @@ Operation of mailing-lists
^^^^^^^^^^^^^^^^^^^^^^^^^^
The encrypted mailing-lists which are used in our process are hosted on
-Linux Foundation's IT infrastructure. By providing this service Linux
-Foundation's director of IT Infrastructure security technically has the
-ability to access the embargoed information, but is obliged to
-confidentiality by his employment contract. Linux Foundation's director of
-IT Infrastructure security is also responsible for the kernel.org
-infrastructure.
-
-The Linux Foundation's current director of IT Infrastructure security is
+Linux Foundation's IT infrastructure. By providing this service, members
+of Linux Foundation's IT operations personnel technically have the
+ability to access the embargoed information, but are obliged to
+confidentiality by their employment contract. Linux Foundation IT
+personnel are also responsible for operating and managing the rest of
+kernel.org infrastructure.
+
+The Linux Foundation's current director of IT Project infrastructure is
Konstantin Ryabitsev.
@@ -255,7 +260,7 @@ an involved disclosed party. The current ambassadors list:
Red Hat Josh Poimboeuf <jpoimboe@redhat.com>
SUSE Jiri Kosina <jkosina@suse.cz>
- Amazon
+ Amazon Peter Bowen <pzb@amzn.com>
Google Kees Cook <keescook@chromium.org>
============= ========================================================
@@ -274,7 +279,7 @@ software decrypts the email and re-encrypts it individually for each
subscriber with the subscriber's PGP key or S/MIME certificate. Details
about the mailing-list software and the setup which is used to ensure the
security of the lists and protection of the data can be found here:
-https://www.kernel.org/....
+https://korg.wiki.kernel.org/userdoc/remail.
List keys
^^^^^^^^^
diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
index 21aa7d5358e6..6399d92f0b21 100644
--- a/Documentation/process/index.rst
+++ b/Documentation/process/index.rst
@@ -60,6 +60,7 @@ lack of a better place.
volatile-considered-harmful
botching-up-ioctls
clang-format
+ ../riscv/patch-acceptance
.. only:: subproject and html
diff --git a/Documentation/riscv/boot-image-header.rst b/Documentation/riscv/boot-image-header.rst
index 518d46d2389d..d7752533865f 100644
--- a/Documentation/riscv/boot-image-header.rst
+++ b/Documentation/riscv/boot-image-header.rst
@@ -22,7 +22,7 @@ The following 64-byte header is present in decompressed Linux kernel image::
u64 res2 = 0; /* Reserved */
u64 magic = 0x5643534952; /* Magic number, little endian, "RISCV" */
u32 magic2 = 0x05435352; /* Magic number 2, little endian, "RSC\x05" */
- u32 res4; /* Reserved for PE COFF offset */
+ u32 res3; /* Reserved for PE COFF offset */
This header format is compliant with PE/COFF header and largely inspired from
ARM64 header. Thus, both ARM64 & RISC-V header can be combined into one common
@@ -34,7 +34,7 @@ Notes
- This header can also be reused to support EFI stub for RISC-V in future. EFI
specification needs PE/COFF image header in the beginning of the kernel image
in order to load it as an EFI application. In order to support EFI stub,
- code0 should be replaced with "MZ" magic string and res5(at offset 0x3c) should
+ code0 should be replaced with "MZ" magic string and res3(at offset 0x3c) should
point to the rest of the PE/COFF header.
- version field indicate header version number
diff --git a/Documentation/riscv/index.rst b/Documentation/riscv/index.rst
index 215fd3c1f2d5..fa33bffd8992 100644
--- a/Documentation/riscv/index.rst
+++ b/Documentation/riscv/index.rst
@@ -7,6 +7,7 @@ RISC-V architecture
boot-image-header
pmu
+ patch-acceptance
.. only:: subproject and html
diff --git a/Documentation/riscv/patch-acceptance.rst b/Documentation/riscv/patch-acceptance.rst
new file mode 100644
index 000000000000..dfe0ac5624fb
--- /dev/null
+++ b/Documentation/riscv/patch-acceptance.rst
@@ -0,0 +1,35 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+arch/riscv maintenance guidelines for developers
+================================================
+
+Overview
+--------
+The RISC-V instruction set architecture is developed in the open:
+in-progress drafts are available for all to review and to experiment
+with implementations. New module or extension drafts can change
+during the development process - sometimes in ways that are
+incompatible with previous drafts. This flexibility can present a
+challenge for RISC-V Linux maintenance. Linux maintainers disapprove
+of churn, and the Linux development process prefers well-reviewed and
+tested code over experimental code. We wish to extend these same
+principles to the RISC-V-related code that will be accepted for
+inclusion in the kernel.
+
+Submit Checklist Addendum
+-------------------------
+We'll only accept patches for new modules or extensions if the
+specifications for those modules or extensions are listed as being
+"Frozen" or "Ratified" by the RISC-V Foundation. (Developers may, of
+course, maintain their own Linux kernel trees that contain code for
+any draft extensions that they wish.)
+
+Additionally, the RISC-V specification allows implementors to create
+their own custom extensions. These custom extensions aren't required
+to go through any review or ratification process by the RISC-V
+Foundation. To avoid the maintenance complexity and potential
+performance impact of adding kernel code for implementor-specific
+RISC-V extensions, we'll only to accept patches for extensions that
+have been officially frozen or ratified by the RISC-V Foundation.
+(Implementors, may, of course, maintain their own Linux kernel trees
+containing code for any custom extensions that they wish.)
diff --git a/Documentation/sound/alsa-configuration.rst b/Documentation/sound/alsa-configuration.rst
index 02aacd69ab96..392875a1b94e 100644
--- a/Documentation/sound/alsa-configuration.rst
+++ b/Documentation/sound/alsa-configuration.rst
@@ -495,7 +495,8 @@ Module for C-Media CMI8338/8738/8768/8770 PCI sound cards.
mpu_port
port address of MIDI interface (8338 only):
0x300,0x310,0x320,0x330 = legacy port,
- 0 = disable (default)
+ 1 = integrated PCI port (default on 8738),
+ 0 = disable
fm_port
port address of OPL-3 FM synthesizer (8x38 only):
0x388 = legacy port,
diff --git a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
index f169d58ca019..fa4968817696 100644
--- a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
+++ b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
@@ -259,7 +259,7 @@ to details explained in the following section.
{
struct mychip *chip;
int err;
- static struct snd_device_ops ops = {
+ static const struct snd_device_ops ops = {
.dev_free = snd_mychip_dev_free,
};
@@ -675,7 +675,7 @@ low-level device with a specified ``ops``,
::
- static struct snd_device_ops ops = {
+ static const struct snd_device_ops ops = {
.dev_free = snd_mychip_dev_free,
};
....
@@ -761,7 +761,7 @@ destructor and PCI entries. Example code is shown first, below.
{
struct mychip *chip;
int err;
- static struct snd_device_ops ops = {
+ static const struct snd_device_ops ops = {
.dev_free = snd_mychip_dev_free,
};
@@ -1058,7 +1058,7 @@ and the allocation would be like below:
return err;
}
chip->iobase_phys = pci_resource_start(pci, 0);
- chip->iobase_virt = ioremap_nocache(chip->iobase_phys,
+ chip->iobase_virt = ioremap(chip->iobase_phys,
pci_resource_len(pci, 0));
and the corresponding destructor would be:
@@ -3912,7 +3912,7 @@ For a raw-data proc-file, set the attributes as follows:
::
- static struct snd_info_entry_ops my_file_io_ops = {
+ static const struct snd_info_entry_ops my_file_io_ops = {
.read = my_file_io_read,
};
diff --git a/Documentation/sphinx/automarkup.py b/Documentation/sphinx/automarkup.py
index 5b6119ff69f4..b18236370742 100644
--- a/Documentation/sphinx/automarkup.py
+++ b/Documentation/sphinx/automarkup.py
@@ -5,8 +5,13 @@
# has been done.
#
from docutils import nodes
+import sphinx
from sphinx import addnodes
-from sphinx.environment import NoUri
+if sphinx.version_info[0] < 2 or \
+ sphinx.version_info[0] == 2 and sphinx.version_info[1] < 1:
+ from sphinx.environment import NoUri
+else:
+ from sphinx.errors import NoUri
import re
#
diff --git a/Documentation/tee.txt b/Documentation/tee.txt
index afacdf2fd1de..c8fad81c4563 100644
--- a/Documentation/tee.txt
+++ b/Documentation/tee.txt
@@ -112,6 +112,83 @@ kernel are handled by the kernel driver. Other RPC messages will be forwarded to
tee-supplicant without further involvement of the driver, except switching
shared memory buffer representation.
+AMD-TEE driver
+==============
+
+The AMD-TEE driver handles the communication with AMD's TEE environment. The
+TEE environment is provided by AMD Secure Processor.
+
+The AMD Secure Processor (formerly called Platform Security Processor or PSP)
+is a dedicated processor that features ARM TrustZone technology, along with a
+software-based Trusted Execution Environment (TEE) designed to enable
+third-party Trusted Applications. This feature is currently enabled only for
+APUs.
+
+The following picture shows a high level overview of AMD-TEE::
+
+ |
+ x86 |
+ |
+ User space (Kernel space) | AMD Secure Processor (PSP)
+ ~~~~~~~~~~ ~~~~~~~~~~~~~~ | ~~~~~~~~~~~~~~~~~~~~~~~~~~
+ |
+ +--------+ | +-------------+
+ | Client | | | Trusted |
+ +--------+ | | Application |
+ /\ | +-------------+
+ || | /\
+ || | ||
+ || | \/
+ || | +----------+
+ || | | TEE |
+ || | | Internal |
+ \/ | | API |
+ +---------+ +-----------+---------+ +----------+
+ | TEE | | TEE | AMD-TEE | | AMD-TEE |
+ | Client | | subsystem | driver | | Trusted |
+ | API | | | | | OS |
+ +---------+-----------+----+------+---------+---------+----------+
+ | Generic TEE API | | ASP | Mailbox |
+ | IOCTL (TEE_IOC_*) | | driver | Register Protocol |
+ +--------------------------+ +---------+--------------------+
+
+At the lowest level (in x86), the AMD Secure Processor (ASP) driver uses the
+CPU to PSP mailbox regsister to submit commands to the PSP. The format of the
+command buffer is opaque to the ASP driver. It's role is to submit commands to
+the secure processor and return results to AMD-TEE driver. The interface
+between AMD-TEE driver and AMD Secure Processor driver can be found in [6].
+
+The AMD-TEE driver packages the command buffer payload for processing in TEE.
+The command buffer format for the different TEE commands can be found in [7].
+
+The TEE commands supported by AMD-TEE Trusted OS are:
+* TEE_CMD_ID_LOAD_TA - loads a Trusted Application (TA) binary into
+ TEE environment.
+* TEE_CMD_ID_UNLOAD_TA - unloads TA binary from TEE environment.
+* TEE_CMD_ID_OPEN_SESSION - opens a session with a loaded TA.
+* TEE_CMD_ID_CLOSE_SESSION - closes session with loaded TA
+* TEE_CMD_ID_INVOKE_CMD - invokes a command with loaded TA
+* TEE_CMD_ID_MAP_SHARED_MEM - maps shared memory
+* TEE_CMD_ID_UNMAP_SHARED_MEM - unmaps shared memory
+
+AMD-TEE Trusted OS is the firmware running on AMD Secure Processor.
+
+The AMD-TEE driver registers itself with TEE subsystem and implements the
+following driver function callbacks:
+
+* get_version - returns the driver implementation id and capability.
+* open - sets up the driver context data structure.
+* release - frees up driver resources.
+* open_session - loads the TA binary and opens session with loaded TA.
+* close_session - closes session with loaded TA and unloads it.
+* invoke_func - invokes a command with loaded TA.
+
+cancel_req driver callback is not supported by AMD-TEE.
+
+The GlobalPlatform TEE Client API [5] can be used by the user space (client) to
+talk to AMD's TEE. AMD's TEE provides a secure environment for loading, opening
+a session, invoking commands and clossing session with TA.
+
References
==========
@@ -125,3 +202,7 @@ References
[5] http://www.globalplatform.org/specificationsdevice.asp look for
"TEE Client API Specification v1.0" and click download.
+
+[6] include/linux/psp-tee.h
+
+[7] drivers/tee/amdtee/amdtee_if.h
diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst
index d2b5657ed33e..ff658e27d25b 100644
--- a/Documentation/trace/ftrace.rst
+++ b/Documentation/trace/ftrace.rst
@@ -95,7 +95,8 @@ of ftrace. Here is a list of some of the key files:
current_tracer:
This is used to set or display the current tracer
- that is configured.
+ that is configured. Changing the current tracer clears
+ the ring buffer content as well as the "snapshot" buffer.
available_tracers:
@@ -126,7 +127,8 @@ of ftrace. Here is a list of some of the key files:
This file holds the output of the trace in a human
readable format (described below). Note, tracing is temporarily
disabled when the file is open for reading. Once all readers
- are closed, tracing is re-enabled.
+ are closed, tracing is re-enabled. Opening this file for
+ writing with the O_TRUNC flag clears the ring buffer content.
trace_pipe:
@@ -185,7 +187,8 @@ of ftrace. Here is a list of some of the key files:
CPU buffer and not total size of all buffers. The
trace buffers are allocated in pages (blocks of memory
that the kernel uses for allocation, usually 4 KB in size).
- If the last page allocated has room for more bytes
+ A few extra pages may be allocated to accommodate buffer management
+ meta-data. If the last page allocated has room for more bytes
than requested, the rest of the page will be used,
making the actual allocation bigger than requested or shown.
( Note, the size may not be a multiple of the page size
@@ -235,7 +238,7 @@ of ftrace. Here is a list of some of the key files:
This interface also allows for commands to be used. See the
"Filter commands" section for more details.
- As a speed up, since processing strings can't be quite expensive
+ As a speed up, since processing strings can be quite expensive
and requires a check of all functions registered to tracing, instead
an index can be written into this file. A number (starting with "1")
written will instead select the same corresponding at the line position
@@ -382,7 +385,7 @@ of ftrace. Here is a list of some of the key files:
By default, 128 comms are saved (see "saved_cmdlines" above). To
increase or decrease the amount of comms that are cached, echo
- in a the number of comms to cache, into this file.
+ the number of comms to cache into this file.
saved_tgids:
@@ -490,6 +493,9 @@ of ftrace. Here is a list of some of the key files:
# echo global > trace_clock
+ Setting a clock clears the ring buffer content as well as the
+ "snapshot" buffer.
+
trace_marker:
This is a very useful file for synchronizing user space
@@ -3324,7 +3330,7 @@ directories after it is created.
As you can see, the new directory looks similar to the tracing directory
itself. In fact, it is very similar, except that the buffer and
-events are agnostic from the main director, or from any other
+events are agnostic from the main directory, or from any other
instances that are created.
The files in the new directory work just like the files with the
diff --git a/Documentation/trace/ring-buffer-design.txt b/Documentation/trace/ring-buffer-design.txt
index ff747b6fa39b..2d53c6f25b91 100644
--- a/Documentation/trace/ring-buffer-design.txt
+++ b/Documentation/trace/ring-buffer-design.txt
@@ -37,7 +37,7 @@ commit_page - a pointer to the page with the last finished non-nested write.
cmpxchg - hardware-assisted atomic transaction that performs the following:
- A = B iff previous A == C
+ A = B if previous A == C
R = cmpxchg(A, C, B) is saying that we replace A with B if and only if
current A is equal to C, and we put the old (current) A into R
diff --git a/Documentation/translations/ko_KR/memory-barriers.txt b/Documentation/translations/ko_KR/memory-barriers.txt
index f07c40a068b5..2e831ece6e26 100644
--- a/Documentation/translations/ko_KR/memory-barriers.txt
+++ b/Documentation/translations/ko_KR/memory-barriers.txt
@@ -2413,7 +2413,7 @@ _않습니다_.
알고 있는, - inb() 나 writel() ê³¼ ê°™ì€ - ì ì ˆí•œ 액세스 ë£¨í‹´ì„ í†µí•´ ì´ë£¨ì–´ì ¸ì•¼ë§Œ
합니다. ì´ê²ƒë“¤ì€ ëŒ€ë¶€ë¶„ì˜ ê²½ìš°ì—는 ëª…ì‹œì  ë©”ëª¨ë¦¬ 배리어 와 함께 ì‚¬ìš©ë  í•„ìš”ê°€
없습니다만, ì™„í™”ëœ ë©”ëª¨ë¦¬ 액세스 ì†ì„±ìœ¼ë¡œ I/O 메모리 윈ë„ìš°ë¡œì˜ ì°¸ì¡°ë¥¼ 위해
-액세스 함수가 사용ëœë‹¤ë©´ 순서를 강제하기 위해 _madatory_ 메모리 배리어가
+액세스 함수가 사용ëœë‹¤ë©´ 순서를 강제하기 위해 _mandatory_ 메모리 배리어가
필요합니다.
ë” ë§Žì€ ì •ë³´ë¥¼ 위해선 Documentation/driver-api/device-io.rst 를 참고하십시오.
@@ -2528,7 +2528,7 @@ I/O 액세스를 통한 ì£¼ë³€ìž¥ì¹˜ì™€ì˜ í†µì‹ ì€ ì•„í‚¤í…ì³ì™€ ê¸°ê¸°ì— ë
ì´ê²ƒë“¤ì€ readX() 와 writeX() ëž‘ 비슷하지만, ë” ì™„í™”ëœ ë©”ëª¨ë¦¬ 순서
ë³´ìž¥ì„ ì œê³µí•©ë‹ˆë‹¤. 구체ì ìœ¼ë¡œ, ì´ê²ƒë“¤ì€ ì¼ë°˜ì  메모리 액세스나 delay()
루프 (예:ì•žì˜ 2-5 항목) ì— ëŒ€í•´ 순서를 보장하지 않습니다만 ë””í´íЏ I/O
- 기능으로 ë§¤í•‘ëœ __iomem í¬ì¸í„°ì— 대해 ë™ìž‘í•  때, ê°™ì€ CPU ì“°ë ˆë“œì— ì˜í•´
+ 기능으로 ë§¤í•‘ëœ __iomem í¬ì¸í„°ì— 대해 ë™ìž‘í•  때, ê°™ì€ CPU ì“°ë ˆë“œì— ì˜í•œ
ê°™ì€ ì£¼ë³€ìž¥ì¹˜ë¡œì˜ ì•¡ì„¸ìŠ¤ì—는 순서가 맞춰질 ê²ƒì´ ë³´ìž¥ë©ë‹ˆë‹¤.
(*) readsX(), writesX():
diff --git a/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst b/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst
new file mode 100644
index 000000000000..b93f1af68261
--- /dev/null
+++ b/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst
@@ -0,0 +1,228 @@
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: :ref:`Documentation/process/embargoed-hardware-issues.rst <embargoed_hardware_issues>`
+:Translator: Alex Shi <alex.shi@linux.alibaba.com>
+
+被é™åˆ¶çš„硬件问题
+================
+
+范围
+----
+
+导致安全问题的硬件问题与åªå½±å“Linux内核的纯软件错误是ä¸åŒçš„安全错误类别。
+
+必须区别对待诸如熔æ¯(Meltdown)ã€Spectreã€L1TF等硬件问题,因为它们通常会影å“
+所有æ“作系统(“OSâ€ï¼‰ï¼Œå› æ­¤éœ€è¦åœ¨ä¸åŒçš„OS供应商ã€å‘行版ã€ç¡¬ä»¶ä¾›åº”å•†å’Œå…¶ä»–å„æ–¹
+之间进行å调。对于æŸäº›é—®é¢˜ï¼Œè½¯ä»¶ç¼“è§£å¯èƒ½ä¾èµ–äºŽå¾®ç æˆ–固件更新,这需è¦è¿›ä¸€æ­¥çš„
+å调。
+
+.. _zh_Contact:
+
+接触
+----
+
+Linux内核硬件安全å°ç»„独立于普通的Linux内核安全å°ç»„。
+
+该å°ç»„åªè´Ÿè´£å调被é™åˆ¶çš„硬件安全问题。Linuxå†…æ ¸ä¸­çº¯è½¯ä»¶å®‰å…¨æ¼æ´žçš„æŠ¥å‘Šä¸ç”±è¯¥
+å°ç»„处ç†ï¼ŒæŠ¥å‘Šè€…将被引导至常规Linux内核安全å°ç»„(:ref:`Documentation/admin-guide/
+<securitybugs>`)è”系。
+
+å¯ä»¥é€šè¿‡ç”µå­é‚®ä»¶ <hardware-security@kernel.org> 与å°ç»„è”系。这是一份ç§å¯†çš„安全
+官åå•ï¼Œä»–ä»¬å°†å¸®åŠ©æ‚¨æ ¹æ®æˆ‘们的文档化æµç¨‹å调问题。
+
+邮件列表是加密的,å‘é€åˆ°åˆ—表的电å­é‚®ä»¶å¯ä»¥é€šè¿‡PGP或S/MIME加密,并且必须使用报告
+者的PGP密钥或S/MIMEè¯ä¹¦ç­¾å。该列表的PGP密钥和S/MIMEè¯ä¹¦å¯ä»Ž
+https://www.kernel.org/.... 获得。
+
+虽然硬件安全问题通常由å—å½±å“的硬件供应商处ç†ï¼Œä½†æˆ‘们欢迎å‘现潜在硬件缺陷的研究
+人员或个人与我们è”系。
+
+硬件安全官
+^^^^^^^^^^
+
+ç›®å‰çš„硬件安全官å°ç»„:
+
+ - Linus Torvalds(Linux基金会院士)
+ - Greg Kroah Hartman(Linux基金会院士)
+ - Thomas Gleixner(Linux基金会院士)
+
+邮件列表的æ“作
+^^^^^^^^^^^^^^
+
+å¤„ç†æµç¨‹ä¸­ä½¿ç”¨çš„加密邮件列表托管在Linux Foundationçš„IT基础设施上。通过æä¾›è¿™é¡¹
+æœåŠ¡ï¼ŒLinux基金会的IT基础设施安全总监在技术上有能力访问被é™åˆ¶çš„ä¿¡æ¯ï¼Œä½†æ ¹æ®ä»–
+的雇佣åˆåŒï¼Œä»–å¿…é¡»ä¿å¯†ã€‚Linux基金会的IT基础设施安全总监还负责 kernel.org 基础
+设施。
+
+Linux基金会目å‰çš„IT基础设施安全总监是 Konstantin Ryabitsev。
+
+ä¿å¯†åè®®
+--------
+
+Linux内核硬件安全å°ç»„䏿˜¯æ­£å¼çš„æœºæž„,因此无法签订任何ä¿å¯†å议。核心社区æ„识到
+è¿™äº›é—®é¢˜çš„æ•æ„Ÿæ€§ï¼Œå¹¶æä¾›äº†ä¸€ä»½è°…解备忘录。
+
+谅解备忘录
+----------
+
+Linux内核社区深刻ç†è§£åœ¨ä¸åŒæ“作系统供应商ã€å‘行商ã€ç¡¬ä»¶ä¾›åº”å•†å’Œå…¶ä»–å„æ–¹ä¹‹é—´
+进行åè°ƒæ—¶ï¼Œä¿æŒç¡¬ä»¶å®‰å…¨é—®é¢˜å¤„于é™åˆ¶çжæ€çš„è¦æ±‚。
+
+Linuxå†…æ ¸ç¤¾åŒºåœ¨è¿‡åŽ»å·²ç»æˆåŠŸåœ°å¤„ç†äº†ç¡¬ä»¶å®‰å…¨é—®é¢˜ï¼Œå¹¶ä¸”有必è¦çš„æœºåˆ¶å…许在é™åˆ¶
+é™åˆ¶ä¸‹è¿›è¡Œç¬¦åˆç¤¾åŒºçš„å¼€å‘。
+
+Linux内核社区有一个专门的硬件安全å°ç»„è´Ÿè´£åˆå§‹è”系,并监ç£åœ¨é™åˆ¶è§„则下处ç†
+此类问题的过程。
+
+硬件安全å°ç»„确定开å‘人员(领域专家),他们将组æˆç‰¹å®šé—®é¢˜çš„åˆå§‹å“应å°ç»„。最åˆ
+çš„å“应å°ç»„å¯ä»¥å¼•入更多的开å‘人员(领域专家)以最佳的技术方å¼è§£å†³è¿™ä¸ªé—®é¢˜ã€‚
+
+所有相关开å‘商承诺éµå®ˆé™åˆ¶è§„定,并对收到的信æ¯ä¿å¯†ã€‚è¿å承诺将导致立å³ä»Žå½“å‰
+问题中排除,并从所有相关邮件列表中删除。此外,硬件安全å°ç»„还将把è¿å者排除在
+未æ¥çš„é—®é¢˜ä¹‹å¤–ã€‚è¿™ä¸€åŽæžœçš„å½±å“在我们社区是一ç§éžå¸¸æœ‰æ•ˆçš„卿…‘。如果å‘生è¿è§„
+情况,硬件安全å°ç»„将立å³é€šçŸ¥ç›¸å…³æ–¹ã€‚如果您或任何人å‘现潜在的è¿è§„行为,请立å³
+å‘硬件安全人员报告。
+
+æµç¨‹
+^^^^
+
+由于Linux内核开å‘的全çƒåˆ†å¸ƒå¼ç‰¹æ€§ï¼Œé¢å¯¹é¢çš„会议几乎ä¸å¯èƒ½è§£å†³ç¡¬ä»¶å®‰å…¨é—®é¢˜ã€‚
+由于时区和其他因素,电è¯ä¼šè®®å¾ˆéš¾å调,åªèƒ½åœ¨ç»å¯¹å¿…è¦æ—¶ä½¿ç”¨ã€‚加密电å­é‚®ä»¶å·²è¢«
+è¯æ˜Žæ˜¯è§£å†³æ­¤ç±»é—®é¢˜çš„æœ€æœ‰æ•ˆå’Œæœ€å®‰å…¨çš„通信方法。
+
+开始披露
+""""""""
+
+披露内容首先通过电å­é‚®ä»¶è”ç³»Linux内核硬件安全å°ç»„。此åˆå§‹è”系人应包å«é—®é¢˜çš„
+æè¿°å’Œä»»ä½•已知å—å½±å“硬件的列表。如果您的组织制造或分å‘å—å½±å“的硬件,我们建议
+您也考虑哪些其他硬件å¯èƒ½ä¼šå—到影å“。
+
+硬件安全å°ç»„å°†æä¾›ä¸€ä¸ªç‰¹å®šäºŽäº‹ä»¶çš„åŠ å¯†é‚®ä»¶åˆ—è¡¨ï¼Œç”¨äºŽä¸ŽæŠ¥å‘Šè€…è¿›è¡Œåˆæ­¥è®¨è®ºã€
+进一步披露和å调。
+
+硬件安全å°ç»„å°†å‘æŠ«éœ²æ–¹æä¾›ä¸€ä»½å¼€å‘人员(领域专家)åå•,在与开å‘人员确认他们
+å°†éµå®ˆæœ¬è°…解备忘录和文件化æµç¨‹åŽï¼Œåº”首先告知开å‘人员有关该问题的信æ¯ã€‚这些开å‘
+人员组æˆåˆå§‹å“应å°ç»„,并在åˆå§‹æŽ¥è§¦åŽè´Ÿè´£å¤„ç†é—®é¢˜ã€‚硬件安全å°ç»„支æŒå“应å°ç»„,
+但ä¸ä¸€å®šå‚与缓解开å‘过程。
+
+虽然个别开å‘人员å¯èƒ½é€šè¿‡å…¶é›‡ä¸»å—到ä¿å¯†åè®®çš„ä¿æŠ¤ï¼Œä½†ä»–ä»¬ä¸èƒ½ä»¥Linux内核开å‘
+人员的身份签订个别ä¿å¯†åè®®ã€‚ä½†æ˜¯ï¼Œä»–ä»¬å°†åŒæ„éµå®ˆè¿™ä¸€ä¹¦é¢ç¨‹åºå’Œè°…解备忘录。
+
+披露方应æä¾›å·²ç»æˆ–应该被告知该问题的所有其他实体的è”系人åå•。这有几个目的:
+
+ - 披露的实体列表å…许跨行业通信,例如其他æ“作系统供应商ã€ç¡¬ä»¶ä¾›åº”商等。
+
+ - å¯è”系已披露的实体,指定应å‚与缓解措施开å‘的专家。
+
+ - 如果需è¦å¤„ç†æŸä¸€é—®é¢˜çš„专家å—雇于æŸä¸€ä¸Šå¸‚实体或æŸä¸€ä¸Šå¸‚实体的æˆå‘˜ï¼Œåˆ™å“应
+ å°ç»„å¯è¦æ±‚该实体披露该专家。这确ä¿ä¸“家也是实体å应å°ç»„的一部分。
+
+披露
+""""
+
+披露方通过特定的加密邮件列表å‘åˆå§‹å“应å°ç»„æä¾›è¯¦ç»†ä¿¡æ¯ã€‚
+
+æ ¹æ®æˆ‘们的ç»éªŒï¼Œè¿™äº›é—®é¢˜çš„æŠ€æœ¯æ–‡æ¡£é€šå¸¸æ˜¯ä¸€ä¸ªè¶³å¤Ÿçš„起点,最好通过电å­é‚®ä»¶è¿›è¡Œ
+进一步的技术澄清。
+
+缓解开å‘
+""""""""
+
+åˆå§‹å“应å°ç»„è®¾ç½®åŠ å¯†é‚®ä»¶åˆ—è¡¨ï¼Œæˆ–åœ¨é€‚å½“çš„æƒ…å†µä¸‹é‡æ–°ä¿®æ”¹çŽ°æœ‰é‚®ä»¶åˆ—è¡¨ã€‚
+
+使用邮件列表接近于正常的Linuxå¼€å‘è¿‡ç¨‹ï¼Œå¹¶ä¸”åœ¨è¿‡åŽ»å·²ç»æˆåŠŸåœ°ç”¨äºŽä¸ºå„ç§ç¡¬ä»¶å®‰å…¨
+问题开å‘缓解措施。
+
+邮件列表的æ“作方å¼ä¸Žæ­£å¸¸çš„Linuxå¼€å‘相åŒã€‚å‘布ã€è®¨è®ºå’Œå®¡æŸ¥ä¿®è¡¥ç¨‹åºï¼Œå¦‚æžœåŒæ„,
+则应用于éžå…¬å…±git存储库,å‚与开å‘人员åªèƒ½é€šè¿‡å®‰å…¨è¿žæŽ¥è®¿é—®è¯¥å­˜å‚¨åº“。存储库包å«
+针对主线内核的主开å‘分支,并根æ®éœ€è¦ä¸ºç¨³å®šçš„内核版本æä¾›å‘åŽç§»æ¤åˆ†æ”¯ã€‚
+
+最åˆçš„å“应å°ç»„将根æ®éœ€è¦ä»ŽLinux内核开å‘人员社区中确定更多的专家。引进专家å¯ä»¥
+在开å‘过程中的任何时候å‘生,需è¦åŠæ—¶å¤„ç†ã€‚
+
+如果专家å—雇于披露方æä¾›çš„æŠ«éœ²æ¸…å•上的实体或其æˆå‘˜ï¼Œåˆ™ç›¸å…³å®žä½“å°†è¦æ±‚å…¶å‚与。
+
+å¦åˆ™ï¼ŒæŠ«éœ²æ–¹å°†è¢«å‘ŠçŸ¥ä¸“å®¶å‚ä¸Žçš„æƒ…å†µã€‚è°…è§£å¤‡å¿˜å½•æ¶µç›–äº†ä¸“å®¶ï¼Œè¦æ±‚披露方确认å‚与。
+如果披露方有令人信æœçš„ç†ç”±æå‡ºå¼‚议,则必须在五个工作日内æå‡ºå¼‚议,并立å³ä¸Žäº‹ä»¶
+å°ç»„解决。如果披露方在五个工作日内未作出回应,则视为默许。
+
+在确认或解决异议åŽï¼Œä¸“家由事件å°ç»„披露,并进入开å‘过程。
+
+åè°ƒå‘布
+""""""""
+
+æœ‰å…³å„æ–¹å°†å商é™åˆ¶ç»“æŸçš„æ—¥æœŸå’Œæ—¶é—´ã€‚此时,准备好的缓解措施集æˆåˆ°ç›¸å…³çš„内核树中
+å¹¶å‘布。
+
+虽然我们ç†è§£ç¡¬ä»¶å®‰å…¨é—®é¢˜éœ€è¦åè°ƒé™åˆ¶æ—¶é—´ï¼Œä½†é™åˆ¶æ—¶é—´åº”é™åˆ¶åœ¨æ‰€æœ‰æœ‰å…³å„方制定ã€
+测试和准备缓解措施所需的最短时间内。人为地延长é™åˆ¶æ—¶é—´ä»¥æ»¡è¶³ä¼šè®®è®¨è®ºæ—¥æœŸæˆ–å…¶ä»–
+éžæŠ€æœ¯åŽŸå› ï¼Œä¼šç»™ç›¸å…³çš„å¼€å‘人员和å“应å°ç»„带æ¥äº†æ›´å¤šçš„工作和负担,因为补ä¸éœ€è¦
+ä¿æŒæœ€æ–°ï¼Œä»¥ä¾¿è·Ÿè¸ªæ­£åœ¨è¿›è¡Œçš„上游内核开å‘,这å¯èƒ½ä¼šé€ æˆå†²çªçš„æ›´æ”¹ã€‚
+
+CVE分é…
+"""""""
+
+硬件安全å°ç»„å’Œåˆå§‹å“应å°ç»„都ä¸åˆ†é…CVE,开å‘过程也ä¸éœ€è¦CVE。如果CVE是由披露方
+æä¾›çš„,则å¯ç”¨äºŽæ–‡æ¡£ä¸­ã€‚
+
+æµç¨‹ä¸“使
+--------
+
+为了å助这一进程,我们在å„组织设立了专使,他们å¯ä»¥å›žç­”有关报告æµç¨‹å’Œè¿›ä¸€æ­¥å¤„ç†
+的问题或æä¾›æŒ‡å¯¼ã€‚专使ä¸å‚与特定问题的披露,除éžå“应å°ç»„或相关披露方æå‡ºè¦æ±‚。
+现任专使åå•:
+
+ ============= ========================================================
+ ARM
+ AMD Tom Lendacky <tom.lendacky@amd.com>
+ IBM
+ Intel Tony Luck <tony.luck@intel.com>
+ Qualcomm Trilok Soni <tsoni@codeaurora.org>
+
+ Microsoft Sasha Levin <sashal@kernel.org>
+ VMware
+ Xen Andrew Cooper <andrew.cooper3@citrix.com>
+
+ Canonical Tyler Hicks <tyhicks@canonical.com>
+ Debian Ben Hutchings <ben@decadent.org.uk>
+ Oracle Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+ Red Hat Josh Poimboeuf <jpoimboe@redhat.com>
+ SUSE Jiri Kosina <jkosina@suse.cz>
+
+ Amazon
+ Google Kees Cook <keescook@chromium.org>
+ ============= ========================================================
+
+如果è¦å°†æ‚¨çš„组织添加到专使åå•中,请与硬件安全å°ç»„è”系。被æå的专使必须完全
+ç†è§£å’Œæ”¯æŒæˆ‘们的过程,并且在Linux内核社区中很容易è”系。
+
+加密邮件列表
+------------
+
+æˆ‘ä»¬ä½¿ç”¨åŠ å¯†é‚®ä»¶åˆ—è¡¨è¿›è¡Œé€šä¿¡ã€‚è¿™äº›åˆ—è¡¨çš„å·¥ä½œåŽŸç†æ˜¯ï¼Œå‘é€åˆ°åˆ—表的电å­é‚®ä»¶ä½¿ç”¨
+列表的PGP密钥或列表的/MIMEè¯ä¹¦è¿›è¡ŒåŠ å¯†ã€‚é‚®ä»¶åˆ—è¡¨è½¯ä»¶å¯¹ç”µå­é‚®ä»¶è¿›è¡Œè§£å¯†ï¼Œå¹¶
+使用订阅者的PGP密钥或S/MIMEè¯ä¹¦ä¸ºæ¯ä¸ªè®¢é˜…è€…åˆ†åˆ«å¯¹å…¶è¿›è¡Œé‡æ–°åŠ å¯†ã€‚æœ‰å…³é‚®ä»¶åˆ—è¡¨
+软件和用于确ä¿åˆ—表安全和数æ®ä¿æŠ¤çš„设置的详细信æ¯ï¼Œè¯·è®¿é—®:
+https://www.kernel.org/....
+
+关键点
+^^^^^^
+
+åˆæ¬¡æŽ¥è§¦è§ :ref:`zh_Contact`. 对于特定于事件的邮件列表,密钥和S/MIMEè¯ä¹¦é€šè¿‡
+特定列表å‘é€çš„电å­é‚®ä»¶ä¼ é€’给订阅者。
+
+订阅事件特定列表
+^^^^^^^^^^^^^^^^
+
+订阅由å“应å°ç»„处ç†ã€‚希望å‚与通信的披露方将潜在订户的列表å‘é€ç»™å“应组,以便
+å“应组å¯ä»¥éªŒè¯è®¢é˜…请求。
+
+æ¯ä¸ªè®¢æˆ·éƒ½éœ€è¦é€šè¿‡ç”µå­é‚®ä»¶å‘å“应å°ç»„å‘é€è®¢é˜…请求。电å­é‚®ä»¶å¿…须使用订阅æœåС噍
+çš„PGP密钥或S/MIMEè¯ä¹¦ç­¾å。如果使用PGP密钥,则必须从公钥æœåŠ¡å™¨èŽ·å¾—è¯¥å¯†é’¥ï¼Œ
+å¹¶ä¸”ç†æƒ³æƒ…况下该密钥连接到Linux内核的PGP信任网。å¦è¯·å‚è§:
+https://www.kernel.org/signature.html.
+
+å“应å°ç»„验è¯è®¢é˜…者,并将订阅者添加到列表中。订阅åŽï¼Œè®¢é˜…者将收到æ¥è‡ªé‚®ä»¶åˆ—表
+的电å­é‚®ä»¶ï¼Œè¯¥é‚®ä»¶åˆ—表使用列表的PGP密钥或列表的/MIMEè¯ä¹¦ç­¾å。订阅者的电å­é‚®ä»¶
+客户端å¯ä»¥ä»Žç­¾å中æå–PGP密钥或S/MIMEè¯ä¹¦ï¼Œä»¥ä¾¿è®¢é˜…者å¯ä»¥å‘列表å‘é€åŠ å¯†ç”µå­
+邮件。
diff --git a/Documentation/translations/zh_CN/process/index.rst b/Documentation/translations/zh_CN/process/index.rst
index be1e764a80d2..8051a7b322c5 100644
--- a/Documentation/translations/zh_CN/process/index.rst
+++ b/Documentation/translations/zh_CN/process/index.rst
@@ -31,6 +31,8 @@
development-process
email-clients
license-rules
+ kernel-enforcement-statement
+ kernel-driver-statement
其它大多数开å‘人员感兴趣的社区指å—:
@@ -43,6 +45,7 @@
stable-api-nonsense
stable-kernel-rules
management-style
+ embargoed-hardware-issues
这些是一些总体技术指å—ï¼Œç”±äºŽç¼ºä¹æ›´å¥½çš„åœ°æ–¹ï¼ŒçŽ°åœ¨å·²ç»æ”¾åœ¨è¿™é‡Œ
diff --git a/Documentation/translations/zh_CN/process/kernel-driver-statement.rst b/Documentation/translations/zh_CN/process/kernel-driver-statement.rst
new file mode 100644
index 000000000000..2b3375bcccfd
--- /dev/null
+++ b/Documentation/translations/zh_CN/process/kernel-driver-statement.rst
@@ -0,0 +1,199 @@
+.. _cn_process_statement_driver:
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: :ref:`Documentation/process/kernel-driver-statement.rst <process_statement_driver>`
+:Translator: Alex Shi <alex.shi@linux.alibaba.com>
+
+内核驱动声明
+------------
+
+关于Linux内核模å—的立场声明
+===========================
+
+我们,以下署åçš„Linux内核开å‘人员,认为任何å°é—­æºLinuxå†…æ ¸æ¨¡å—æˆ–驱动程åºéƒ½æ˜¯
+有害的和ä¸å¯å–的。我们已ç»ä¸€å†å‘现它们对Linux用户,ä¼ä¸šå’Œæ›´å¤§çš„Linux生æ€ç³»ç»Ÿ
+有害。这样的模å—å¦å®šäº†Linux开呿¨¡åž‹çš„å¼€æ”¾æ€§ï¼Œç¨³å®šæ€§ï¼Œçµæ´»æ€§å’Œå¯ç»´æŠ¤æ€§ï¼Œå¹¶ä½¿
+他们的用户无法使用Linux社区的专业知识。æä¾›é—­æºå†…核模å—的供应商迫使其客户
+放弃Linux的主è¦ä¼˜åŠ¿æˆ–é€‰æ‹©æ–°çš„ä¾›åº”å•†ã€‚å› æ­¤ï¼Œä¸ºäº†å……åˆ†åˆ©ç”¨å¼€æºæ‰€æä¾›çš„æˆæœ¬èŠ‚çœå’Œ
+共享支æŒä¼˜åŠ¿ï¼Œæˆ‘ä»¬æ•¦ä¿ƒä¾›åº”å•†é‡‡å–æŽªæ–½ï¼Œä»¥å¼€æºå†…核代ç åœ¨Linux上为其客户æä¾›æ”¯æŒã€‚
+
+我们åªä¸ºè‡ªå·±è¯´è¯ï¼Œè€Œä¸æ˜¯æˆ‘们今天å¯èƒ½ä¼šä¸ºä¹‹å·¥ä½œï¼Œè¿‡åŽ»æˆ–å°†æ¥ä¼šä¸ºä¹‹å·¥ä½œçš„任何公å¸ã€‚
+
+ - Dave Airlie
+ - Nick Andrew
+ - Jens Axboe
+ - Ralf Baechle
+ - Felipe Balbi
+ - Ohad Ben-Cohen
+ - Muli Ben-Yehuda
+ - Jiri Benc
+ - Arnd Bergmann
+ - Thomas Bogendoerfer
+ - Vitaly Bordug
+ - James Bottomley
+ - Josh Boyer
+ - Neil Brown
+ - Mark Brown
+ - David Brownell
+ - Michael Buesch
+ - Franck Bui-Huu
+ - Adrian Bunk
+ - François Cami
+ - Ralph Campbell
+ - Luiz Fernando N. Capitulino
+ - Mauro Carvalho Chehab
+ - Denis Cheng
+ - Jonathan Corbet
+ - Glauber Costa
+ - Alan Cox
+ - Magnus Damm
+ - Ahmed S. Darwish
+ - Robert P. J. Day
+ - Hans de Goede
+ - Arnaldo Carvalho de Melo
+ - Helge Deller
+ - Jean Delvare
+ - Mathieu Desnoyers
+ - Sven-Thorsten Dietrich
+ - Alexey Dobriyan
+ - Daniel Drake
+ - Alex Dubov
+ - Randy Dunlap
+ - Michael Ellerman
+ - Pekka Enberg
+ - Jan Engelhardt
+ - Mark Fasheh
+ - J. Bruce Fields
+ - Larry Finger
+ - Jeremy Fitzhardinge
+ - Mike Frysinger
+ - Kumar Gala
+ - Robin Getz
+ - Liam Girdwood
+ - Jan-Benedict Glaw
+ - Thomas Gleixner
+ - Brice Goglin
+ - Cyrill Gorcunov
+ - Andy Gospodarek
+ - Thomas Graf
+ - Krzysztof Halasa
+ - Harvey Harrison
+ - Stephen Hemminger
+ - Michael Hennerich
+ - Tejun Heo
+ - Benjamin Herrenschmidt
+ - Kristian Høgsberg
+ - Henrique de Moraes Holschuh
+ - Marcel Holtmann
+ - Mike Isely
+ - Takashi Iwai
+ - Olof Johansson
+ - Dave Jones
+ - Jesper Juhl
+ - Matthias Kaehlcke
+ - Kenji Kaneshige
+ - Jan Kara
+ - Jeremy Kerr
+ - Russell King
+ - Olaf Kirch
+ - Roel Kluin
+ - Hans-Jürgen Koch
+ - Auke Kok
+ - Peter Korsgaard
+ - Jiri Kosina
+ - Aaro Koskinen
+ - Mariusz Kozlowski
+ - Greg Kroah-Hartman
+ - Michael Krufky
+ - Aneesh Kumar
+ - Clemens Ladisch
+ - Christoph Lameter
+ - Gunnar Larisch
+ - Anders Larsen
+ - Grant Likely
+ - John W. Linville
+ - Yinghai Lu
+ - Tony Luck
+ - Pavel Machek
+ - Matt Mackall
+ - Paul Mackerras
+ - Roland McGrath
+ - Patrick McHardy
+ - Kyle McMartin
+ - Paul Menage
+ - Thierry Merle
+ - Eric Miao
+ - Akinobu Mita
+ - Ingo Molnar
+ - James Morris
+ - Andrew Morton
+ - Paul Mundt
+ - Oleg Nesterov
+ - Luca Olivetti
+ - S.Çağlar Onur
+ - Pierre Ossman
+ - Keith Owens
+ - Venkatesh Pallipadi
+ - Nick Piggin
+ - Nicolas Pitre
+ - Evgeniy Polyakov
+ - Richard Purdie
+ - Mike Rapoport
+ - Sam Ravnborg
+ - Gerrit Renker
+ - Stefan Richter
+ - David Rientjes
+ - Luis R. Rodriguez
+ - Stefan Roese
+ - Francois Romieu
+ - Rami Rosen
+ - Stephen Rothwell
+ - Maciej W. Rozycki
+ - Mark Salyzyn
+ - Yoshinori Sato
+ - Deepak Saxena
+ - Holger Schurig
+ - Amit Shah
+ - Yoshihiro Shimoda
+ - Sergei Shtylyov
+ - Kay Sievers
+ - Sebastian Siewior
+ - Rik Snel
+ - Jes Sorensen
+ - Alexey Starikovskiy
+ - Alan Stern
+ - Timur Tabi
+ - Hirokazu Takata
+ - Eliezer Tamir
+ - Eugene Teo
+ - Doug Thompson
+ - FUJITA Tomonori
+ - Dmitry Torokhov
+ - Marcelo Tosatti
+ - Steven Toth
+ - Theodore Tso
+ - Matthias Urlichs
+ - Geert Uytterhoeven
+ - Arjan van de Ven
+ - Ivo van Doorn
+ - Rik van Riel
+ - Wim Van Sebroeck
+ - Hans Verkuil
+ - Horst H. von Brand
+ - Dmitri Vorobiev
+ - Anton Vorontsov
+ - Daniel Walker
+ - Johannes Weiner
+ - Harald Welte
+ - Matthew Wilcox
+ - Dan J. Williams
+ - Darrick J. Wong
+ - David Woodhouse
+ - Chris Wright
+ - Bryan Wu
+ - Rafael J. Wysocki
+ - Herbert Xu
+ - Vlad Yasevich
+ - Peter Zijlstra
+ - Bartlomiej Zolnierkiewicz
diff --git a/Documentation/translations/zh_CN/process/kernel-enforcement-statement.rst b/Documentation/translations/zh_CN/process/kernel-enforcement-statement.rst
new file mode 100644
index 000000000000..75f7b7b9137c
--- /dev/null
+++ b/Documentation/translations/zh_CN/process/kernel-enforcement-statement.rst
@@ -0,0 +1,151 @@
+.. _cn_process_statement_kernel:
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: :ref:`Documentation/process/kernel-enforcement-statement.rst <process_statement_kernel>`
+:Translator: Alex Shi <alex.shi@linux.alibaba.com>
+
+Linux 内核执行声明
+------------------
+
+作为Linux内核的开å‘人员,我们对如何使用我们的软件以åŠå¦‚何实施软件许å¯è¯æœ‰ç€
+浓厚的兴趣。éµå®ˆGPL-2.0çš„äº’æƒ å…±äº«ä¹‰åŠ¡å¯¹æˆ‘ä»¬è½¯ä»¶å’Œç¤¾åŒºçš„é•¿æœŸå¯æŒç»­æ€§è‡³å…³é‡è¦ã€‚
+
+虽然有æƒå¼ºåˆ¶æ‰§è¡Œå¯¹æˆ‘们社区的贡献中的å•ç‹¬ç‰ˆæƒæƒç›Šï¼Œä½†æˆ‘们有共åŒçš„利益,å³ç¡®ä¿
+ä¸ªäººå¼ºåˆ¶æ‰§è¡Œè¡ŒåŠ¨çš„æ–¹å¼æœ‰åˆ©äºŽæˆ‘们的社区,ä¸ä¼šå¯¹æˆ‘们软件生æ€ç³»ç»Ÿçš„å¥åº·å’Œå¢žé•¿
+产生æ„外的负é¢å½±å“ã€‚ä¸ºäº†é˜»æ­¢æ— ç›Šçš„æ‰§æ³•è¡ŒåŠ¨ï¼Œæˆ‘ä»¬åŒæ„代表我们自己和我们版æƒ
+利益的任何继承人对Linuxå†…æ ¸ç”¨æˆ·ä½œå‡ºä»¥ä¸‹ç¬¦åˆæˆ‘们开å‘社区最大利益的承诺:
+
+ 尽管有GPL-2.0çš„ç»ˆæ­¢æ¡æ¬¾ï¼Œæˆ‘ä»¬åŒæ„,采用以下GPL-3.0æ¡æ¬¾ä½œä¸ºæˆ‘们许å¯è¯ä¸‹çš„
+ 附加许å¯ï¼Œä½œä¸ºä»»ä½•对许å¯è¯ä¸‹æƒåˆ©çš„éžé˜²å¾¡æ€§ä¸»å¼ ï¼Œè¿™ç¬¦åˆæˆ‘们开å‘社区的最佳
+ 利益。
+
+ ä½†æ˜¯ï¼Œå¦‚æžœæ‚¨åœæ­¢æ‰€æœ‰è¿å本许å¯è¯çš„è¡Œä¸ºï¼Œåˆ™æ‚¨ä»Žç‰¹å®šç‰ˆæƒæŒæœ‰äººå¤„获得的
+ 许å¯è¯å°†è¢«æ¢å¤ï¼šï¼ˆa)暂时æ¢å¤ï¼Œé™¤éžç‰ˆæƒæŒæœ‰äººæ˜Žç¡®å¹¶æœ€ç»ˆç»ˆæ­¢æ‚¨çš„许å¯è¯ï¼›
+ 以åŠï¼ˆb)永久æ¢å¤, å¦‚æžœç‰ˆæƒæŒæœ‰äººæœªèƒ½åœ¨ä½ ç»ˆæ­¢è¿ååŽ60天内以åˆç†æ–¹å¼
+ 通知您è¿å本许å¯è¯çš„行为,则永久æ¢å¤æ‚¨çš„许å¯è¯ã€‚
+
+ æ­¤å¤–ï¼Œå¦‚æžœç‰ˆæƒæ‰€æœ‰è€…以æŸç§åˆç†çš„æ–¹å¼é€šçŸ¥æ‚¨è¿å了本许å¯ï¼Œè¿™æ˜¯æ‚¨ç¬¬ä¸€æ¬¡
+ ä»Žè¯¥ç‰ˆæƒæ‰€æœ‰è€…处收到è¿å本许å¯çš„通知(对于任何作å“),并且您在收到通知
+ åŽçš„30天内纠正è¿è§„è¡Œä¸ºã€‚åˆ™æ‚¨ä»Žç‰¹å®šç‰ˆæƒæ‰€æœ‰è€…处获得的许å¯å°†æ°¸ä¹…æ¢å¤.
+
+我们æä¾›è¿™äº›ä¿è¯çš„目的是鼓励更多地使用该软件。我们希望公å¸å’Œä¸ªäººä½¿ç”¨ã€ä¿®æ”¹å’Œ
+åˆ†å‘æ­¤è½¯ä»¶ã€‚æˆ‘ä»¬å¸Œæœ›ä»¥å…¬å¼€å’Œé€æ˜Žçš„æ–¹å¼ä¸Žç”¨æˆ·åˆä½œï¼Œä»¥æ¶ˆé™¤æˆ‘们对法规éµä»Žæ€§æˆ–强制
+执行的任何ä¸ç¡®å®šæ€§ï¼Œè¿™äº›ä¸ç¡®å®šæ€§å¯èƒ½ä¼šé™åˆ¶æˆ‘们软件的采用。我们将法律行动视为
+æœ€åŽæ‰‹æ®µï¼Œåªæœ‰åœ¨å…¶ä»–社区努力未能解决这一问题时æ‰é‡‡å–行动。
+
+最åŽï¼Œä¸€æ—¦ä¸€ä¸ªä¸åˆè§„问题得到解决,我们希望用户会感到欢迎,加入我们为之努力的
+这个项目。共åŒåŠªåŠ›ï¼Œæˆ‘ä»¬ä¼šæ›´å¼ºå¤§ã€‚
+
+é™¤äº†ä¸‹é¢æåˆ°çš„ä»¥å¤–ï¼Œæˆ‘ä»¬åªä¸ºè‡ªå·±è¯´è¯ï¼Œè€Œä¸æ˜¯ä¸ºä»Šå¤©ã€è¿‡åŽ»æˆ–å°†æ¥å¯èƒ½ä¸ºä¹‹å·¥ä½œçš„
+任何公å¸è¯´è¯ã€‚
+
+ - Laura Abbott
+ - Bjorn Andersson (Linaro)
+ - Andrea Arcangeli
+ - Neil Armstrong
+ - Jens Axboe
+ - Pablo Neira Ayuso
+ - Khalid Aziz
+ - Ralf Baechle
+ - Felipe Balbi
+ - Arnd Bergmann
+ - Ard Biesheuvel
+ - Tim Bird
+ - Paolo Bonzini
+ - Christian Borntraeger
+ - Mark Brown (Linaro)
+ - Paul Burton
+ - Javier Martinez Canillas
+ - Rob Clark
+ - Kees Cook (Google)
+ - Jonathan Corbet
+ - Dennis Dalessandro
+ - Vivien Didelot (Savoir-faire Linux)
+ - Hans de Goede
+ - Mel Gorman (SUSE)
+ - Sven Eckelmann
+ - Alex Elder (Linaro)
+ - Fabio Estevam
+ - Larry Finger
+ - Bhumika Goyal
+ - Andy Gross
+ - Juergen Gross
+ - Shawn Guo
+ - Ulf Hansson
+ - Stephen Hemminger (Microsoft)
+ - Tejun Heo
+ - Rob Herring
+ - Masami Hiramatsu
+ - Michal Hocko
+ - Simon Horman
+ - Johan Hovold (Hovold Consulting AB)
+ - Christophe JAILLET
+ - Olof Johansson
+ - Lee Jones (Linaro)
+ - Heiner Kallweit
+ - Srinivas Kandagatla
+ - Jan Kara
+ - Shuah Khan (Samsung)
+ - David Kershner
+ - Jaegeuk Kim
+ - Namhyung Kim
+ - Colin Ian King
+ - Jeff Kirsher
+ - Greg Kroah-Hartman (Linux Foundation)
+ - Christian König
+ - Vinod Koul
+ - Krzysztof Kozlowski
+ - Viresh Kumar
+ - Aneesh Kumar K.V
+ - Julia Lawall
+ - Doug Ledford
+ - Chuck Lever (Oracle)
+ - Daniel Lezcano
+ - Shaohua Li
+ - Xin Long
+ - Tony Luck
+ - Catalin Marinas (Arm Ltd)
+ - Mike Marshall
+ - Chris Mason
+ - Paul E. McKenney
+ - Arnaldo Carvalho de Melo
+ - David S. Miller
+ - Ingo Molnar
+ - Kuninori Morimoto
+ - Trond Myklebust
+ - Martin K. Petersen (Oracle)
+ - Borislav Petkov
+ - Jiri Pirko
+ - Josh Poimboeuf
+ - Sebastian Reichel (Collabora)
+ - Guenter Roeck
+ - Joerg Roedel
+ - Leon Romanovsky
+ - Steven Rostedt (VMware)
+ - Frank Rowand
+ - Ivan Safonov
+ - Anna Schumaker
+ - Jes Sorensen
+ - K.Y. Srinivasan
+ - David Sterba (SUSE)
+ - Heiko Stuebner
+ - Jiri Kosina (SUSE)
+ - Willy Tarreau
+ - Dmitry Torokhov
+ - Linus Torvalds
+ - Thierry Reding
+ - Rik van Riel
+ - Luis R. Rodriguez
+ - Geert Uytterhoeven (Glider bvba)
+ - Eduardo Valentin (Amazon.com)
+ - Daniel Vetter
+ - Linus Walleij
+ - Richard Weinberger
+ - Dan Williams
+ - Rafael J. Wysocki
+ - Arvind Yadav
+ - Masahiro Yamada
+ - Wei Yongjun
+ - Lv Zheng
+ - Marc Zyngier (Arm Ltd)
diff --git a/Documentation/usb/index.rst b/Documentation/usb/index.rst
index e55386a4abfb..36b6ebd9a9d9 100644
--- a/Documentation/usb/index.rst
+++ b/Documentation/usb/index.rst
@@ -22,11 +22,9 @@ USB support
misc_usbsevseg
mtouchusb
ohci
- rio
usbip_protocol
usbmon
usb-serial
- wusb-design-overview
usb-help
text_files
diff --git a/Documentation/usb/text_files.rst b/Documentation/usb/text_files.rst
index 6a8d3fcf64b6..1c18c05c3920 100644
--- a/Documentation/usb/text_files.rst
+++ b/Documentation/usb/text_files.rst
@@ -16,12 +16,6 @@ USB devfs drop permissions source
.. literalinclude:: usbdevfs-drop-permissions.c
:language: c
-WUSB command line script to manipulate auth credentials
--------------------------------------------------------
-
-.. literalinclude:: wusb-cbaf
- :language: shell
-
Credits
-------
diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst
index 4ef86433bd67..2e91370dc159 100644
--- a/Documentation/userspace-api/ioctl/ioctl-number.rst
+++ b/Documentation/userspace-api/ioctl/ioctl-number.rst
@@ -132,7 +132,6 @@ Code Seq# Include File Comments
'F' 80-8F linux/arcfb.h conflict!
'F' DD video/sstfb.h conflict!
'G' 00-3F drivers/misc/sgi-gru/grulib.h conflict!
-'G' 00-0F linux/gigaset_dev.h conflict!
'H' 00-7F linux/hiddev.h conflict!
'H' 00-0F linux/hidraw.h conflict!
'H' 01 linux/mei.h conflict!
diff --git a/Documentation/vm/hmm.rst b/Documentation/vm/hmm.rst
index 893a8ba0e9fe..95fec5968362 100644
--- a/Documentation/vm/hmm.rst
+++ b/Documentation/vm/hmm.rst
@@ -149,14 +149,14 @@ CPU page table into a device page table; HMM helps keep both synchronized. A
device driver that wants to mirror a process address space must start with the
registration of a mmu_interval_notifier::
- mni->ops = &driver_ops;
- int mmu_interval_notifier_insert(struct mmu_interval_notifier *mni,
- unsigned long start, unsigned long length,
- struct mm_struct *mm);
+ int mmu_interval_notifier_insert(struct mmu_interval_notifier *interval_sub,
+ struct mm_struct *mm, unsigned long start,
+ unsigned long length,
+ const struct mmu_interval_notifier_ops *ops);
-During the driver_ops->invalidate() callback the device driver must perform
-the update action to the range (mark range read only, or fully unmap,
-etc.). The device must complete the update before the driver callback returns.
+During the ops->invalidate() callback the device driver must perform the
+update action to the range (mark range read only, or fully unmap, etc.). The
+device must complete the update before the driver callback returns.
When the device driver wants to populate a range of virtual addresses, it can
use::
@@ -183,7 +183,7 @@ The usage pattern is::
struct hmm_range range;
...
- range.notifier = &mni;
+ range.notifier = &interval_sub;
range.start = ...;
range.end = ...;
range.pfns = ...;
@@ -191,11 +191,11 @@ The usage pattern is::
range.values = ...;
range.pfn_shift = ...;
- if (!mmget_not_zero(mni->notifier.mm))
+ if (!mmget_not_zero(interval_sub->notifier.mm))
return -EFAULT;
again:
- range.notifier_seq = mmu_interval_read_begin(&mni);
+ range.notifier_seq = mmu_interval_read_begin(&interval_sub);
down_read(&mm->mmap_sem);
ret = hmm_range_fault(&range, HMM_RANGE_SNAPSHOT);
if (ret) {
diff --git a/Documentation/w1/masters/omap-hdq.rst b/Documentation/w1/masters/omap-hdq.rst
index 345298a59e50..5347b5d9e90a 100644
--- a/Documentation/w1/masters/omap-hdq.rst
+++ b/Documentation/w1/masters/omap-hdq.rst
@@ -44,7 +44,7 @@ that the ID used should be same for both master and slave driver loading.
e.g::
insmod omap_hdq.ko W1_ID=2
- inamod w1_bq27000.ko F_ID=2
+ insmod w1_bq27000.ko F_ID=2
The driver also supports 1-wire mode. In this mode, there is no need to
pass slave ID as parameter. The driver will auto-detect slaves connected
diff --git a/Documentation/x86/boot.rst b/Documentation/x86/boot.rst
index 90bb8f5ab384..c9c201596c3e 100644
--- a/Documentation/x86/boot.rst
+++ b/Documentation/x86/boot.rst
@@ -69,11 +69,12 @@ Protocol 2.13 (Kernel 3.14) Support 32- and 64-bit flags being set in
xloadflags to support booting a 64-bit kernel from 32-bit
EFI
-Protocol 2.14: BURNT BY INCORRECT COMMIT ae7e1238e68f2a472a125673ab506d49158c1889
+Protocol 2.14 BURNT BY INCORRECT COMMIT
+ ae7e1238e68f2a472a125673ab506d49158c1889
(x86/boot: Add ACPI RSDP address to setup_header)
DO NOT USE!!! ASSUME SAME AS 2.13.
-Protocol 2.15: (Kernel 5.5) Added the kernel_info and kernel_info.setup_type_max.
+Protocol 2.15 (Kernel 5.5) Added the kernel_info and kernel_info.setup_type_max.
============= ============================================================
.. note::
@@ -251,7 +252,7 @@ setting fields in the header, you must make sure only to set fields
supported by the protocol version in use.
-Details of Harder Fileds
+Details of Header Fields
========================
For each field, some are information from the kernel to the bootloader
@@ -834,14 +835,14 @@ Protocol: 2.09+
chunks of memory are occupied by kernel data.
Thus setup_indirect struct and SETUP_INDIRECT type were introduced in
- protocol 2.15.
+ protocol 2.15::
- struct setup_indirect {
- __u32 type;
- __u32 reserved; /* Reserved, must be set to zero. */
- __u64 len;
- __u64 addr;
- };
+ struct setup_indirect {
+ __u32 type;
+ __u32 reserved; /* Reserved, must be set to zero. */
+ __u64 len;
+ __u64 addr;
+ };
The type member is a SETUP_INDIRECT | SETUP_* type. However, it cannot be
SETUP_INDIRECT itself since making the setup_indirect a tree structure
@@ -849,19 +850,19 @@ Protocol: 2.09+
and stack space can be limited in boot contexts.
Let's give an example how to point to SETUP_E820_EXT data using setup_indirect.
- In this case setup_data and setup_indirect will look like this:
-
- struct setup_data {
- __u64 next = 0 or <addr_of_next_setup_data_struct>;
- __u32 type = SETUP_INDIRECT;
- __u32 len = sizeof(setup_data);
- __u8 data[sizeof(setup_indirect)] = struct setup_indirect {
- __u32 type = SETUP_INDIRECT | SETUP_E820_EXT;
- __u32 reserved = 0;
- __u64 len = <len_of_SETUP_E820_EXT_data>;
- __u64 addr = <addr_of_SETUP_E820_EXT_data>;
+ In this case setup_data and setup_indirect will look like this::
+
+ struct setup_data {
+ __u64 next = 0 or <addr_of_next_setup_data_struct>;
+ __u32 type = SETUP_INDIRECT;
+ __u32 len = sizeof(setup_data);
+ __u8 data[sizeof(setup_indirect)] = struct setup_indirect {
+ __u32 type = SETUP_INDIRECT | SETUP_E820_EXT;
+ __u32 reserved = 0;
+ __u64 len = <len_of_SETUP_E820_EXT_data>;
+ __u64 addr = <addr_of_SETUP_E820_EXT_data>;
+ }
}
- }
.. note::
SETUP_INDIRECT | SETUP_NONE objects cannot be properly distinguished
@@ -964,7 +965,7 @@ expected to copy into a setup_data chunk.
All kernel_info data should be part of this structure. Fixed size data have to
be put before kernel_info_var_len_data label. Variable size data have to be put
after kernel_info_var_len_data label. Each chunk of variable size data has to
-be prefixed with header/magic and its size, e.g.:
+be prefixed with header/magic and its size, e.g.::
kernel_info:
.ascii "LToP" /* Header, Linux top (structure). */
diff --git a/Documentation/x86/pat.rst b/Documentation/x86/pat.rst
index 9a298fd97d74..5d901771016d 100644
--- a/Documentation/x86/pat.rst
+++ b/Documentation/x86/pat.rst
@@ -44,8 +44,6 @@ address range to avoid any aliasing.
+------------------------+----------+--------------+------------------+
| ioremap_uc | -- | UC | UC |
+------------------------+----------+--------------+------------------+
-| ioremap_nocache | -- | UC- | UC- |
-+------------------------+----------+--------------+------------------+
| ioremap_wc | -- | -- | WC |
+------------------------+----------+--------------+------------------+
| ioremap_wt | -- | -- | WT |
diff --git a/Documentation/x86/x86_64/mm.rst b/Documentation/x86/x86_64/mm.rst
index 267fc4808945..e5053404a1ae 100644
--- a/Documentation/x86/x86_64/mm.rst
+++ b/Documentation/x86/x86_64/mm.rst
@@ -1,8 +1,8 @@
.. SPDX-License-Identifier: GPL-2.0
-================
-Memory Managment
-================
+=================
+Memory Management
+=================
Complete virtual memory map with 4-level page tables
====================================================
diff --git a/MAINTAINERS b/MAINTAINERS
index cc0a4a8ae06a..dc833b88c8bc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -345,7 +345,7 @@ F: drivers/acpi/apei/
ACPI COMPONENT ARCHITECTURE (ACPICA)
M: Robert Moore <robert.moore@intel.com>
-M: Erik Schmauss <erik.schmauss@intel.com>
+M: Erik Kaneda <erik.kaneda@intel.com>
M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
L: linux-acpi@vger.kernel.org
L: devel@acpica.org
@@ -674,6 +674,14 @@ S: Maintained
F: Documentation/i2c/busses/i2c-ali1563.rst
F: drivers/i2c/busses/i2c-ali1563.c
+ALL SENSORS DLH SERIES PRESSURE SENSORS DRIVER
+M: Tomislav Denis <tomislav.denis@avl.com>
+W: http://www.allsensors.com/
+S: Maintained
+L: linux-iio@vger.kernel.org
+F: drivers/iio/pressure/dlhl60d.c
+F: Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
+
ALLEGRO DVT VIDEO IP CORE DRIVER
M: Michael Tretter <m.tretter@pengutronix.de>
R: Pengutronix Kernel Team <kernel@pengutronix.de>
@@ -694,6 +702,14 @@ L: linux-crypto@vger.kernel.org
S: Maintained
F: drivers/crypto/allwinner/
+ALLWINNER THERMAL DRIVER
+M: Vasily Khoruzhick <anarsoul@gmail.com>
+M: Yangtao Li <tiny.windzz@gmail.com>
+L: linux-pm@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
+F: drivers/thermal/sun8i_thermal.c
+
ALLWINNER VPU DRIVER
M: Maxime Ripard <mripard@kernel.org>
M: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
@@ -720,13 +736,13 @@ F: Documentation/devicetree/bindings/i2c/i2c-altera.txt
F: drivers/i2c/busses/i2c-altera.c
ALTERA MAILBOX DRIVER
-M: Ley Foon Tan <lftan@altera.com>
+M: Ley Foon Tan <ley.foon.tan@intel.com>
L: nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
S: Maintained
F: drivers/mailbox/mailbox-altera.c
ALTERA PIO DRIVER
-M: Tien Hock Loh <thloh@altera.com>
+M: Joyce Ooi <joyce.ooi@intel.com>
L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/gpio/gpio-altera.c
@@ -771,6 +787,8 @@ F: drivers/thermal/thermal_mmio.c
AMAZON ETHERNET DRIVERS
M: Netanel Belgazal <netanel@amazon.com>
+M: Arthur Kiyanovski <akiyano@amazon.com>
+R: Guy Tzalik <gtzalik@amazon.com>
R: Saeed Bishara <saeedb@amazon.com>
R: Zorik Machulsky <zorik@amazon.com>
L: netdev@vger.kernel.org
@@ -789,7 +807,6 @@ F: include/uapi/rdma/efa-abi.h
AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER
M: Tom Lendacky <thomas.lendacky@amd.com>
-M: Gary Hook <gary.hook@amd.com>
L: linux-crypto@vger.kernel.org
S: Supported
F: drivers/crypto/ccp/
@@ -898,6 +915,14 @@ S: Supported
F: drivers/iio/dac/ad5758.c
F: Documentation/devicetree/bindings/iio/dac/ad5758.txt
+ANALOG DEVICES INC AD7091R5 DRIVER
+M: Beniamin Bia <beniamin.bia@analog.com>
+L: linux-iio@vger.kernel.org
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/iio/adc/ad7091r5.c
+F: Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
+
ANALOG DEVICES INC AD7124 DRIVER
M: Stefan Popa <stefan.popa@analog.com>
L: linux-iio@vger.kernel.org
@@ -975,6 +1000,15 @@ W: http://ez.analog.com/community/linux-device-drivers
F: drivers/iio/imu/adis16460.c
F: Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
+ANALOG DEVICES INC ADM1177 DRIVER
+M: Beniamin Bia <beniamin.bia@analog.com>
+M: Michael Hennerich <Michael.Hennerich@analog.com>
+L: linux-hwmon@vger.kernel.org
+W: http://ez.analog.com/community/linux-device-drivers
+S: Supported
+F: drivers/hwmon/adm1177.c
+F: Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml
+
ANALOG DEVICES INC ADP5061 DRIVER
M: Stefan Popa <stefan.popa@analog.com>
L: linux-pm@vger.kernel.org
@@ -1043,7 +1077,7 @@ S: Supported
F: Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523
F: Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350
F: drivers/iio/*/ad*
-F: drivers/iio/adc/ltc2497*
+F: drivers/iio/adc/ltc249*
X: drivers/iio/*/adjd*
F: drivers/staging/iio/*/ad*
@@ -1405,7 +1439,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
ARM/ACTIONS SEMI ARCHITECTURE
M: Andreas Färber <afaerber@suse.de>
-R: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
N: owl
@@ -2240,6 +2274,7 @@ L: linux-rockchip@lists.infradead.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git
S: Maintained
F: Documentation/devicetree/bindings/i2c/i2c-rk3x.txt
+F: Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
F: arch/arm/boot/dts/rk3*
F: arch/arm/boot/dts/rv1108*
F: arch/arm/mach-rockchip/
@@ -2272,6 +2307,7 @@ F: drivers/*/*s3c64xx*
F: drivers/*/*s5pv210*
F: drivers/memory/samsung/
F: drivers/soc/samsung/
+F: drivers/tty/serial/samsung*
F: include/linux/soc/samsung/
F: Documentation/arm/samsung/
F: Documentation/devicetree/bindings/arm/samsung/
@@ -2691,6 +2727,14 @@ S: Maintained
F: drivers/pinctrl/aspeed/
F: Documentation/devicetree/bindings/pinctrl/aspeed,*
+ASPEED SCU INTERRUPT CONTROLLER DRIVER
+M: Eddie James <eajames@linux.ibm.com>
+L: linux-aspeed@lists.ozlabs.org (moderated for non-subscribers)
+S: Maintained
+F: Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
+F: drivers/irqchip/irq-aspeed-scu-ic.c
+F: include/dt-bindings/interrupt-controller/aspeed-scu-ic.h
+
ASPEED VIDEO ENGINE DRIVER
M: Eddie James <eajames@linux.ibm.com>
L: linux-media@vger.kernel.org
@@ -3088,6 +3132,13 @@ S: Supported
F: drivers/net/bonding/
F: include/uapi/linux/if_bonding.h
+BOSCH SENSORTEC BMA400 ACCELEROMETER IIO DRIVER
+M: Dan Robertson <dan@dlrobertson.com>
+L: linux-iio@vger.kernel.org
+S: Maintained
+F: drivers/iio/accel/bma400*
+F: Documentation/devicetree/bindings/iio/accel/bosch,bma400.yaml
+
BPF (Safe dynamic programs and tools)
M: Alexei Starovoitov <ast@kernel.org>
M: Daniel Borkmann <daniel@iogearbox.net>
@@ -3147,7 +3198,7 @@ S: Maintained
F: arch/mips/net/
BPF JIT for NFP NICs
-M: Jakub Kicinski <jakub.kicinski@netronome.com>
+M: Jakub Kicinski <kuba@kernel.org>
L: netdev@vger.kernel.org
L: bpf@vger.kernel.org
S: Supported
@@ -4845,6 +4896,7 @@ S: Supported
F: net/core/devlink.c
F: include/net/devlink.h
F: include/uapi/linux/devlink.h
+F: Documentation/networking/devlink
DIALOG SEMICONDUCTOR DRIVERS
M: Support Opensource <support.opensource@diasemi.com>
@@ -4973,6 +5025,24 @@ F: Documentation/driver-api/dma-buf.rst
K: dma_(buf|fence|resv)
T: git git://anongit.freedesktop.org/drm/drm-misc
+DMA-BUF HEAPS FRAMEWORK
+M: Sumit Semwal <sumit.semwal@linaro.org>
+R: Andrew F. Davis <afd@ti.com>
+R: Benjamin Gaignard <benjamin.gaignard@linaro.org>
+R: Liam Mark <lmark@codeaurora.org>
+R: Laura Abbott <labbott@redhat.com>
+R: Brian Starkey <Brian.Starkey@arm.com>
+R: John Stultz <john.stultz@linaro.org>
+S: Maintained
+L: linux-media@vger.kernel.org
+L: dri-devel@lists.freedesktop.org
+L: linaro-mm-sig@lists.linaro.org (moderated for non-subscribers)
+F: include/uapi/linux/dma-heap.h
+F: include/linux/dma-heap.h
+F: drivers/dma-buf/dma-heap.c
+F: drivers/dma-buf/heaps/*
+T: git git://anongit.freedesktop.org/drm/drm-misc
+
DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
M: Vinod Koul <vkoul@kernel.org>
L: dmaengine@vger.kernel.org
@@ -5000,7 +5070,7 @@ F: include/linux/dma-mapping.h
F: include/linux/dma-noncoherent.h
DMC FREQUENCY DRIVER FOR SAMSUNG EXYNOS5422
-M: Lukasz Luba <l.luba@partner.samsung.com>
+M: Lukasz Luba <lukasz.luba@arm.com>
L: linux-pm@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org
S: Maintained
@@ -5178,6 +5248,12 @@ T: git git://anongit.freedesktop.org/drm/drm-misc
S: Maintained
F: drivers/gpu/drm/bochs/
+DRM DRIVER FOR BOE HIMAX8279D PANELS
+M: Jerry Han <hanxu5@huaqin.corp-partner.google.com>
+S: Maintained
+F: drivers/gpu/drm/panel/panel-boe-himax8279d.c
+F: Documentation/devicetree/bindings/display/panel/boe,himax8279d.txt
+
DRM DRIVER FOR FARADAY TVE200 TV ENCODER
M: Linus Walleij <linus.walleij@linaro.org>
T: git git://anongit.freedesktop.org/drm/drm-misc
@@ -5333,6 +5409,12 @@ S: Maintained
F: drivers/gpu/drm/tiny/st7735r.c
F: Documentation/devicetree/bindings/display/sitronix,st7735r.txt
+DRM DRIVER FOR SONY ACX424AKP PANELS
+M: Linus Walleij <linus.walleij@linaro.org>
+T: git git://anongit.freedesktop.org/drm/drm-misc
+S: Maintained
+F: drivers/gpu/drm/panel/panel-sony-acx424akp.c
+
DRM DRIVER FOR ST-ERICSSON MCDE
M: Linus Walleij <linus.walleij@linaro.org>
T: git git://anongit.freedesktop.org/drm/drm-misc
@@ -5405,7 +5487,6 @@ F: include/linux/vga*
DRM DRIVERS AND MISC GPU PATCHES
M: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
M: Maxime Ripard <mripard@kernel.org>
-M: Sean Paul <sean@poorly.run>
W: https://01.org/linuxgraphics/gfx-docs/maintainer-tools/drm-misc.html
S: Maintained
T: git git://anongit.freedesktop.org/drm/drm-misc
@@ -6026,6 +6107,7 @@ M: Yash Shah <yash.shah@sifive.com>
L: linux-edac@vger.kernel.org
S: Supported
F: drivers/edac/sifive_edac.c
+F: drivers/soc/sifive_l2_cache.c
EDAC-SKYLAKE
M: Tony Luck <tony.luck@intel.com>
@@ -6151,6 +6233,12 @@ M: Maxim Levitsky <maximlevitsky@gmail.com>
S: Maintained
F: drivers/media/rc/ene_ir.*
+EPAPR HYPERVISOR BYTE CHANNEL DEVICE DRIVER
+M: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+L: linuxppc-dev@lists.ozlabs.org
+S: Maintained
+F: drivers/tty/ehv_bytechan.c
+
EPSON S1D13XXX FRAMEBUFFER DRIVER
M: Kristoffer Ericson <kristoffer.ericson@gmail.com>
S: Maintained
@@ -6193,6 +6281,7 @@ ETHERNET PHY LIBRARY
M: Andrew Lunn <andrew@lunn.ch>
M: Florian Fainelli <f.fainelli@gmail.com>
M: Heiner Kallweit <hkallweit1@gmail.com>
+R: Russell King <linux@armlinux.org.uk>
L: netdev@vger.kernel.org
S: Maintained
F: Documentation/ABI/testing/sysfs-class-net-phydev
@@ -6398,6 +6487,7 @@ F: fs/*
F: include/linux/fs.h
F: include/linux/fs_types.h
F: include/uapi/linux/fs.h
+F: include/uapi/linux/openat2.h
FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER
M: Riku Voipio <riku.voipio@iki.fi>
@@ -7032,6 +7122,7 @@ L: linux-acpi@vger.kernel.org
S: Maintained
F: Documentation/firmware-guide/acpi/gpio-properties.rst
F: drivers/gpio/gpiolib-acpi.c
+F: drivers/gpio/gpiolib-acpi.h
GPIO IR Transmitter
M: Sean Young <sean@mess.org>
@@ -7493,6 +7584,12 @@ S: Supported
F: drivers/scsi/hisi_sas/
F: Documentation/devicetree/bindings/scsi/hisilicon-sas.txt
+HISILICON V3XX SPI NOR FLASH Controller Driver
+M: John Garry <john.garry@huawei.com>
+W: http://www.hisilicon.com
+S: Maintained
+F: drivers/spi/spi-hisi-sfc-v3xx.c
+
HISILICON QM AND ZIP Controller DRIVER
M: Zhou Wang <wangzhou1@hisilicon.com>
L: linux-crypto@vger.kernel.org
@@ -7836,10 +7933,10 @@ F: Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
F: drivers/i3c/master/dw*
I3C DRIVER FOR CADENCE I3C MASTER IP
-M: Przemysław Gaj <pgaj@cadence.com>
-S: Maintained
-F: Documentation/devicetree/bindings/i3c/cdns,i3c-master.txt
-F: drivers/i3c/master/i3c-master-cdns.c
+M: Przemysław Gaj <pgaj@cadence.com>
+S: Maintained
+F: Documentation/devicetree/bindings/i3c/cdns,i3c-master.txt
+F: drivers/i3c/master/i3c-master-cdns.c
IA64 (Itanium) PLATFORM
M: Tony Luck <tony.luck@intel.com>
@@ -8345,7 +8442,6 @@ S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel.git
F: drivers/gpio/gpio-ich.c
F: drivers/gpio/gpio-intel-mid.c
-F: drivers/gpio/gpio-lynxpoint.c
F: drivers/gpio/gpio-merrifield.c
F: drivers/gpio/gpio-ml-ioh.c
F: drivers/gpio/gpio-pch.c
@@ -8376,6 +8472,14 @@ Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
S: Supported
F: drivers/dma/ioat*
+INTEL IADX DRIVER
+M: Dave Jiang <dave.jiang@intel.com>
+L: dmaengine@vger.kernel.org
+S: Supported
+F: drivers/dma/idxd/*
+F: include/uapi/linux/idxd.h
+F: include/linux/idxd.h
+
INTEL IDLE DRIVER
M: Jacob Pan <jacob.jun.pan@linux.intel.com>
M: Len Brown <lenb@kernel.org>
@@ -8557,6 +8661,12 @@ S: Maintained
F: arch/x86/include/asm/intel_telemetry.h
F: drivers/platform/x86/intel_telemetry*
+INTEL UNCORE FREQUENCY CONTROL
+M: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/platform/x86/intel-uncore-frequency.c
+
INTEL VIRTUAL BUTTON DRIVER
M: AceLan Kao <acelan.kao@canonical.com>
L: platform-driver-x86@vger.kernel.org
@@ -8564,7 +8674,7 @@ S: Maintained
F: drivers/platform/x86/intel-vbtn.c
INTEL WIRELESS 3945ABG/BG, 4965AGN (iwlegacy)
-M: Stanislaw Gruszka <sgruszka@redhat.com>
+M: Stanislaw Gruszka <stf_xl@wp.pl>
L: linux-wireless@vger.kernel.org
S: Supported
F: drivers/net/wireless/intel/iwlegacy/
@@ -8805,7 +8915,7 @@ S: Maintained
F: drivers/isdn/mISDN
F: drivers/isdn/hardware
-ISDN/CAPI SUBSYSTEM
+ISDN/CMTP OVER BLUETOOTH
M: Karsten Keil <isdn@linux-pingi.de>
L: isdn4linux@listserv.isdn4linux.de (subscribers-only)
L: netdev@vger.kernel.org
@@ -8813,7 +8923,6 @@ W: http://www.isdn4linux.de
S: Odd Fixes
F: Documentation/isdn/
F: drivers/isdn/capi/
-F: drivers/staging/isdn/
F: net/bluetooth/cmtp/
F: include/linux/isdn/
F: include/uapi/linux/isdn/
@@ -9039,7 +9148,6 @@ F: include/linux/umh.h
KERNEL VIRTUAL MACHINE (KVM)
M: Paolo Bonzini <pbonzini@redhat.com>
-M: Radim KrÄmář <rkrcmar@redhat.com>
L: kvm@vger.kernel.org
W: http://www.linux-kvm.org
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
@@ -9074,9 +9182,9 @@ F: virt/kvm/arm/
F: include/kvm/arm_*
KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
-M: James Hogan <jhogan@kernel.org>
L: linux-mips@vger.kernel.org
-S: Supported
+L: kvm@vger.kernel.org
+S: Orphan
F: arch/mips/include/uapi/asm/kvm*
F: arch/mips/include/asm/kvm*
F: arch/mips/kvm/
@@ -9111,7 +9219,6 @@ F: tools/testing/selftests/kvm/*/s390x/
KERNEL VIRTUAL MACHINE FOR X86 (KVM/x86)
M: Paolo Bonzini <pbonzini@redhat.com>
-M: Radim KrÄmář <rkrcmar@redhat.com>
R: Sean Christopherson <sean.j.christopherson@intel.com>
R: Vitaly Kuznetsov <vkuznets@redhat.com>
R: Wanpeng Li <wanpengli@tencent.com>
@@ -9129,7 +9236,7 @@ F: arch/x86/include/uapi/asm/svm.h
F: arch/x86/include/asm/kvm*
F: arch/x86/include/asm/pvclock-abi.h
F: arch/x86/include/asm/svm.h
-F: arch/x86/include/asm/vmx.h
+F: arch/x86/include/asm/vmx*.h
F: arch/x86/kernel/kvm.c
F: arch/x86/kernel/kvmclock.c
@@ -9578,6 +9685,7 @@ LINUX KERNEL DUMP TEST MODULE (LKDTM)
M: Kees Cook <keescook@chromium.org>
S: Maintained
F: drivers/misc/lkdtm/*
+F: tools/testing/selftests/lkdtm/*
LINUX KERNEL MEMORY CONSISTENCY MODEL (LKMM)
M: Alan Stern <stern@rowland.harvard.edu>
@@ -9886,7 +9994,7 @@ S: Maintained
F: drivers/net/dsa/mv88e6xxx/
F: include/linux/platform_data/mv88e6xxx.h
F: Documentation/devicetree/bindings/net/dsa/marvell.txt
-F: Documentation/networking/devlink-params-mv88e6xxx.txt
+F: Documentation/networking/devlink/mv88e6xxx.rst
MARVELL ARMADA DRM SUPPORT
M: Russell King <linux@armlinux.org.uk>
@@ -9956,8 +10064,7 @@ F: drivers/net/ethernet/marvell/mvneta.*
MARVELL MWIFIEX WIRELESS DRIVER
M: Amitkumar Karwar <amitkarwar@gmail.com>
-M: Nishant Sarmukadam <nishants@marvell.com>
-M: Ganapathi Bhat <gbhat@marvell.com>
+M: Ganapathi Bhat <ganapathi.bhat@nxp.com>
M: Xinming Hu <huxinming820@gmail.com>
L: linux-wireless@vger.kernel.org
S: Maintained
@@ -9996,6 +10103,16 @@ M: Jerin Jacob <jerinj@marvell.com>
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/marvell/octeontx2/af/
+F: Documentation/networking/device_drivers/marvell/octeontx2.rst
+
+MARVELL OCTEONTX2 PHYSICAL FUNCTION DRIVER
+M: Sunil Goutham <sgoutham@marvell.com>
+M: Geetha sowjanya <gakula@marvell.com>
+M: Subbaraya Sundeep <sbhatta@marvell.com>
+M: hariprasad <hkelam@marvell.com>
+L: netdev@vger.kernel.org
+S: Supported
+F: drivers/net/ethernet/marvell/octeontx2/nic/
MATROX FRAMEBUFFER DRIVER
L: linux-fbdev@vger.kernel.org
@@ -10109,6 +10226,7 @@ S: Maintained
F: drivers/media/radio/radio-maxiradio*
MCAN MMIO DEVICE DRIVER
+M: Dan Murphy <dmurphy@ti.com>
M: Sriram Dash <sriram.dash@samsung.com>
L: linux-can@vger.kernel.org
S: Maintained
@@ -10277,7 +10395,7 @@ L: linux-media@vger.kernel.org
L: linux-renesas-soc@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: Documentation/devicetree/bindings/media/renesas,ceu.txt
+F: Documentation/devicetree/bindings/media/renesas,ceu.yaml
F: drivers/media/platform/renesas-ceu.c
F: include/media/drv-intf/renesas-ceu.h
@@ -10315,7 +10433,7 @@ L: linux-media@vger.kernel.org
L: linux-renesas-soc@vger.kernel.org
T: git git://linuxtv.org/media_tree.git
S: Supported
-F: Documentation/devicetree/bindings/media/renesas,csi2.txt
+F: Documentation/devicetree/bindings/media/renesas,csi2.yaml
F: Documentation/devicetree/bindings/media/renesas,vin.txt
F: drivers/media/platform/rcar-vin/
@@ -11139,6 +11257,13 @@ S: Maintained
F: Documentation/driver-api/serial/moxa-smartio.rst
F: drivers/tty/mxser.*
+MONOLITHIC POWER SYSTEM PMIC DRIVER
+M: Saravanan Sekar <sravanhome@gmail.com>
+S: Maintained
+F: Documentation/devicetree/bindings/regulator/mpq7920.yaml
+F: drivers/regulator/mpq7920.c
+F: drivers/regulator/mpq7920.h
+
MR800 AVERMEDIA USB FM RADIO DRIVER
M: Alexey Klimov <klimov.linux@gmail.com>
L: linux-media@vger.kernel.org
@@ -11382,7 +11507,7 @@ F: Documentation/networking/net_failover.rst
NETEM NETWORK EMULATOR
M: Stephen Hemminger <stephen@networkplumber.org>
-L: netem@lists.linux-foundation.org (moderated for non-subscribers)
+L: netdev@vger.kernel.org
S: Maintained
F: net/sched/sch_netem.c
@@ -11427,7 +11552,7 @@ F: include/uapi/linux/netrom.h
F: net/netrom/
NETRONOME ETHERNET DRIVERS
-M: Jakub Kicinski <jakub.kicinski@netronome.com>
+M: Jakub Kicinski <kuba@kernel.org>
L: oss-drivers@netronome.com
S: Maintained
F: drivers/net/ethernet/netronome/
@@ -11456,8 +11581,8 @@ M: "David S. Miller" <davem@davemloft.net>
L: netdev@vger.kernel.org
W: http://www.linuxfoundation.org/en/Net
Q: http://patchwork.ozlabs.org/project/netdev/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
S: Odd Fixes
F: Documentation/devicetree/bindings/net/
F: drivers/net/
@@ -11495,11 +11620,12 @@ F: drivers/net/dsa/
NETWORKING [GENERAL]
M: "David S. Miller" <davem@davemloft.net>
+M: Jakub Kicinski <kuba@kernel.org>
L: netdev@vger.kernel.org
W: http://www.linuxfoundation.org/en/Net
Q: http://patchwork.ozlabs.org/project/netdev/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
B: mailto:netdev@vger.kernel.org
S: Maintained
F: net/
@@ -11544,7 +11670,7 @@ M: "David S. Miller" <davem@davemloft.net>
M: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
M: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
L: netdev@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
S: Maintained
F: net/ipv4/
F: net/ipv6/
@@ -11569,6 +11695,18 @@ F: net/ipv6/calipso.c
F: net/netfilter/xt_CONNSECMARK.c
F: net/netfilter/xt_SECMARK.c
+NETWORKING [MPTCP]
+M: Mat Martineau <mathew.j.martineau@linux.intel.com>
+M: Matthieu Baerts <matthieu.baerts@tessares.net>
+L: netdev@vger.kernel.org
+L: mptcp@lists.01.org
+W: https://github.com/multipath-tcp/mptcp_net-next/wiki
+B: https://github.com/multipath-tcp/mptcp_net-next/issues
+S: Maintained
+F: include/net/mptcp.h
+F: net/mptcp/
+F: tools/testing/selftests/net/mptcp/
+
NETWORKING [TCP]
M: Eric Dumazet <edumazet@google.com>
L: netdev@vger.kernel.org
@@ -11587,7 +11725,7 @@ M: Boris Pismenny <borisp@mellanox.com>
M: Aviad Yehezkel <aviadye@mellanox.com>
M: John Fastabend <john.fastabend@gmail.com>
M: Daniel Borkmann <daniel@iogearbox.net>
-M: Jakub Kicinski <jakub.kicinski@netronome.com>
+M: Jakub Kicinski <kuba@kernel.org>
L: netdev@vger.kernel.org
S: Maintained
F: net/tls/*
@@ -11599,7 +11737,7 @@ L: linux-wireless@vger.kernel.org
Q: http://patchwork.kernel.org/project/linux-wireless/list/
NETDEVSIM
-M: Jakub Kicinski <jakub.kicinski@netronome.com>
+M: Jakub Kicinski <kuba@kernel.org>
S: Maintained
F: drivers/net/netdevsim/*
@@ -11676,7 +11814,7 @@ F: Documentation/scsi/NinjaSCSI.txt
F: drivers/scsi/nsp32*
NIOS2 ARCHITECTURE
-M: Ley Foon Tan <lftan@altera.com>
+M: Ley Foon Tan <ley.foon.tan@intel.com>
L: nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
T: git git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2.git
S: Maintained
@@ -12427,7 +12565,7 @@ L: linux-crypto@vger.kernel.org
S: Maintained
F: kernel/padata.c
F: include/linux/padata.h
-F: Documentation/padata.txt
+F: Documentation/core-api/padata.rst
PAGE POOL
M: Jesper Dangaard Brouer <hawk@kernel.org>
@@ -12443,6 +12581,13 @@ L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/panasonic-laptop.c
+PARALLAX PING IIO SENSOR DRIVER
+M: Andreas Klinger <ak@it-klinger.de>
+L: linux-iio@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/iio/proximity/parallax-ping.yaml
+F: drivers/iio/proximity/ping.c
+
PARALLEL LCD/KEYPAD PANEL DRIVER
M: Willy Tarreau <willy@haproxy.com>
M: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
@@ -12560,7 +12705,7 @@ F: Documentation/devicetree/bindings/pci/aardvark-pci.txt
F: drivers/pci/controller/pci-aardvark.c
PCI DRIVER FOR ALTERA PCIE IP
-M: Ley Foon Tan <lftan@altera.com>
+M: Ley Foon Tan <ley.foon.tan@intel.com>
L: rfi@lists.rocketboards.org (moderated for non-subscribers)
L: linux-pci@vger.kernel.org
S: Supported
@@ -12580,7 +12725,7 @@ M: Rob Herring <robh@kernel.org>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org
S: Maintained
-F: Documentation/devicetree/bindings/pci/versatile.txt
+F: Documentation/devicetree/bindings/pci/versatile.yaml
F: drivers/pci/controller/pci-versatile.c
PCI DRIVER FOR ARMADA 8K
@@ -12613,7 +12758,7 @@ M: Will Deacon <will@kernel.org>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/pci/host-generic-pci.txt
+F: Documentation/devicetree/bindings/pci/host-generic-pci.yaml
F: drivers/pci/controller/pci-host-common.c
F: drivers/pci/controller/pci-host-generic.c
@@ -12739,7 +12884,7 @@ S: Supported
F: Documentation/PCI/pci-error-recovery.rst
PCI MSI DRIVER FOR ALTERA MSI IP
-M: Ley Foon Tan <lftan@altera.com>
+M: Ley Foon Tan <ley.foon.tan@intel.com>
L: rfi@lists.rocketboards.org (moderated for non-subscribers)
L: linux-pci@vger.kernel.org
S: Supported
@@ -13140,6 +13285,11 @@ S: Maintained
F: drivers/iio/chemical/pms7003.c
F: Documentation/devicetree/bindings/iio/chemical/plantower,pms7003.yaml
+PLX DMA DRIVER
+M: Logan Gunthorpe <logang@deltatee.com>
+S: Maintained
+F: drivers/dma/plx_dma.c
+
PMBUS HARDWARE MONITORING DRIVERS
M: Guenter Roeck <linux@roeck-us.net>
L: linux-hwmon@vger.kernel.org
@@ -13210,6 +13360,8 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
S: Maintained
F: fs/timerfd.c
F: include/linux/timer*
+F: include/linux/time_namespace.h
+F: kernel/time_namespace.c
F: kernel/time/*timer*
POWER MANAGEMENT CORE
@@ -13645,6 +13797,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
S: Supported
F: drivers/net/wireless/ath/ath10k/
+QUALCOMM ATHEROS ATH11K WIRELESS DRIVER
+M: Kalle Valo <kvalo@codeaurora.org>
+L: ath11k@lists.infradead.org
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
+S: Supported
+F: drivers/net/wireless/ath/ath11k/
+
QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
M: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
L: linux-wireless@vger.kernel.org
@@ -13667,6 +13826,14 @@ S: Maintained
F: Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt
F: drivers/cpufreq/qcom-cpufreq-nvmem.c
+QUALCOMM CORE POWER REDUCTION (CPR) AVS DRIVER
+M: Niklas Cassel <nks@flawful.org>
+L: linux-pm@vger.kernel.org
+L: linux-arm-msm@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/power/avs/qcom,cpr.txt
+F: drivers/power/avs/qcom-cpr.c
+
QUALCOMM EMAC GIGABIT ETHERNET DRIVER
M: Timur Tabi <timur@kernel.org>
L: netdev@vger.kernel.org
@@ -13675,7 +13842,6 @@ F: drivers/net/ethernet/qualcomm/emac/
QUALCOMM ETHQOS ETHERNET DRIVER
M: Vinod Koul <vkoul@kernel.org>
-M: Niklas Cassel <niklas.cassel@linaro.org>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -13709,6 +13875,15 @@ L: linux-arm-msm@vger.kernel.org
S: Maintained
F: drivers/iommu/qcom_iommu.c
+QUALCOMM RMNET DRIVER
+M: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
+M: Sean Tranchetti <stranche@codeaurora.org>
+L: netdev@vger.kernel.org
+S: Maintained
+F: drivers/net/ethernet/qualcomm/rmnet/
+F: Documentation/networking/device_drivers/qualcomm/rmnet.txt
+F: include/linux/if_rmnet.h
+
QUALCOMM TSENS THERMAL DRIVER
M: Amit Kucheria <amit.kucheria@linaro.org>
L: linux-pm@vger.kernel.org
@@ -13808,7 +13983,7 @@ S: Maintained
F: arch/mips/ralink
RALINK RT2X00 WIRELESS LAN DRIVER
-M: Stanislaw Gruszka <sgruszka@redhat.com>
+M: Stanislaw Gruszka <stf_xl@wp.pl>
M: Helmut Schaa <helmut.schaa@googlemail.com>
L: linux-wireless@vger.kernel.org
S: Maintained
@@ -14108,6 +14283,7 @@ M: Paul Walmsley <paul.walmsley@sifive.com>
M: Palmer Dabbelt <palmer@dabbelt.com>
M: Albert Ou <aou@eecs.berkeley.edu>
L: linux-riscv@lists.infradead.org
+P: Documentation/riscv/patch-acceptance.rst
T: git git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git
S: Supported
F: arch/riscv/
@@ -14493,7 +14669,7 @@ F: drivers/media/i2c/s5k5baf.c
SAMSUNG S5P Security SubSystem (SSS) DRIVER
M: Krzysztof Kozlowski <krzk@kernel.org>
M: Vladimir Zapolskiy <vz@mleia.com>
-M: Kamil Konieczny <k.konieczny@partner.samsung.com>
+M: Kamil Konieczny <k.konieczny@samsung.com>
L: linux-crypto@vger.kernel.org
L: linux-samsung-soc@vger.kernel.org
S: Maintained
@@ -14535,8 +14711,6 @@ F: include/linux/platform_data/spi-s3c64xx.h
SAMSUNG SXGBE DRIVERS
M: Byungho An <bh74.an@samsung.com>
-M: Girish K S <ks.giri@samsung.com>
-M: Vipul Pandya <vipul.pandya@samsung.com>
S: Supported
L: netdev@vger.kernel.org
F: drivers/net/ethernet/samsung/sxgbe/
@@ -14807,6 +14981,7 @@ F: include/uapi/linux/selinux_netlink.h
F: security/selinux/
F: scripts/selinux/
F: Documentation/admin-guide/LSM/SELinux.rst
+F: Documentation/ABI/obsolete/sysfs-selinux-disable
SENSABLE PHANTOM
M: Jiri Slaby <jirislaby@gmail.com>
@@ -15033,11 +15208,8 @@ F: drivers/video/fbdev/sm712*
F: Documentation/fb/sm712fb.rst
SIMPLE FIRMWARE INTERFACE (SFI)
-M: Len Brown <lenb@kernel.org>
-L: sfi-devel@simplefirmware.org
W: http://simplefirmware.org/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-sfi-2.6.git
-S: Supported
+S: Obsolete
F: arch/x86/platform/sfi/
F: drivers/sfi/
F: include/linux/sfi*.h
@@ -15757,6 +15929,7 @@ M: Jose Abreu <joabreu@synopsys.com>
L: netdev@vger.kernel.org
W: http://www.stlinux.com
S: Supported
+F: Documentation/networking/device_drivers/stmicro/
F: drivers/net/ethernet/stmicro/stmmac/
SUN3/3X
@@ -16329,12 +16502,15 @@ F: Documentation/devicetree/bindings/thermal/
THERMAL/CPU_COOLING
M: Amit Daniel Kachhap <amit.kachhap@gmail.com>
+M: Daniel Lezcano <daniel.lezcano@linaro.org>
M: Viresh Kumar <viresh.kumar@linaro.org>
M: Javi Merino <javi.merino@kernel.org>
L: linux-pm@vger.kernel.org
S: Supported
F: Documentation/driver-api/thermal/cpu-cooling-api.rst
-F: drivers/thermal/cpu_cooling.c
+F: Documentation/driver-api/thermal/cpu-idle-cooling.rst
+F: drivers/thermal/cpufreq_cooling.c
+F: drivers/thermal/cpuidle_cooling.c
F: include/linux/cpu_cooling.h
THERMAL DRIVER FOR AMLOGIC SOCS
@@ -16361,6 +16537,7 @@ M: Andreas Noever <andreas.noever@gmail.com>
M: Michael Jamet <michael.jamet@intel.com>
M: Mika Westerberg <mika.westerberg@linux.intel.com>
M: Yehezkel Bernat <YehezkelShB@gmail.com>
+L: linux-usb@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git
S: Maintained
F: Documentation/admin-guide/thunderbolt.rst
@@ -16532,6 +16709,13 @@ L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Odd Fixes
F: sound/soc/codecs/tas571x*
+TI TCAN4X5X DEVICE DRIVER
+M: Dan Murphy <dmurphy@ti.com>
+L: linux-can@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/net/can/tcan4x5x.txt
+F: drivers/net/can/m_can/tcan4x5x.c
+
TI TRF7970A NFC DRIVER
M: Mark Greer <mgreer@animalcreek.com>
L: linux-wireless@vger.kernel.org
@@ -16583,7 +16767,7 @@ F: kernel/time/ntp.c
F: tools/testing/selftests/timers/
TIPC NETWORK LAYER
-M: Jon Maloy <jon.maloy@ericsson.com>
+M: Jon Maloy <jmaloy@redhat.com>
M: Ying Xue <ying.xue@windriver.com>
L: netdev@vger.kernel.org (core kernel code)
L: tipc-discussion@lists.sourceforge.net (user apps, general discussion)
@@ -17356,7 +17540,7 @@ F: drivers/mtd/nand/raw/vf610_nfc.c
VFAT/FAT/MSDOS FILESYSTEM
M: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
S: Maintained
-F: Documentation/filesystems/vfat.txt
+F: Documentation/filesystems/vfat.rst
F: fs/fat/
VFIO DRIVER
@@ -17479,6 +17663,7 @@ F: net/vmw_vsock/diag.c
F: net/vmw_vsock/af_vsock_tap.c
F: net/vmw_vsock/virtio_transport_common.c
F: net/vmw_vsock/virtio_transport.c
+F: net/vmw_vsock/vsock_loopback.c
F: drivers/net/vsockmon.c
F: drivers/vhost/vsock.c
F: tools/testing/vsock/
@@ -17849,6 +18034,14 @@ L: linux-gpio@vger.kernel.org
S: Maintained
F: drivers/gpio/gpio-ws16c48.c
+WIREGUARD SECURE NETWORK TUNNEL
+M: Jason A. Donenfeld <Jason@zx2c4.com>
+S: Maintained
+F: drivers/net/wireguard/
+F: tools/testing/selftests/wireguard/
+L: wireguard@lists.zx2c4.com
+L: netdev@vger.kernel.org
+
WISTRON LAPTOP BUTTON DRIVER
M: Miloslav Trmac <mitr@volny.cz>
S: Maintained
@@ -18024,7 +18217,7 @@ XDP (eXpress Data Path)
M: Alexei Starovoitov <ast@kernel.org>
M: Daniel Borkmann <daniel@iogearbox.net>
M: David S. Miller <davem@davemloft.net>
-M: Jakub Kicinski <jakub.kicinski@netronome.com>
+M: Jakub Kicinski <kuba@kernel.org>
M: Jesper Dangaard Brouer <hawk@kernel.org>
M: John Fastabend <john.fastabend@gmail.com>
L: netdev@vger.kernel.org
diff --git a/Makefile b/Makefile
index f900c23b8291..6a01b073915e 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 5
SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION =
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*
@@ -414,6 +414,7 @@ STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
OBJSIZE = $(CROSS_COMPILE)size
+READELF = $(CROSS_COMPILE)readelf
PAHOLE = pahole
LEX = flex
YACC = bison
@@ -472,7 +473,7 @@ GCC_PLUGINS_CFLAGS :=
CLANG_FLAGS :=
export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE PAHOLE LEX YACC AWK INSTALLKERNEL
+export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF PAHOLE LEX YACC AWK INSTALLKERNEL
export PERL PYTHON PYTHON2 PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index 1989b946a28d..d1ed5a8133c5 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -283,14 +283,8 @@ static inline void __iomem *ioremap(unsigned long port, unsigned long size)
return IO_CONCAT(__IO_PREFIX,ioremap) (port, size);
}
-static inline void __iomem * ioremap_nocache(unsigned long offset,
- unsigned long size)
-{
- return ioremap(offset, size);
-}
-
-#define ioremap_wc ioremap_nocache
-#define ioremap_uc ioremap_nocache
+#define ioremap_wc ioremap
+#define ioremap_uc ioremap
static inline void iounmap(volatile void __iomem *addr)
{
diff --git a/arch/alpha/include/asm/vmalloc.h b/arch/alpha/include/asm/vmalloc.h
new file mode 100644
index 000000000000..0a9a366a4d34
--- /dev/null
+++ b/arch/alpha/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_ALPHA_VMALLOC_H
+#define _ASM_ALPHA_VMALLOC_H
+
+#endif /* _ASM_ALPHA_VMALLOC_H */
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 5d4c76a77a9f..f19aa577354b 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -655,8 +655,6 @@ setup_arch(char **cmdline_p)
#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
#endif
#endif
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index 8e13b0b2928d..36d42da7466a 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -475,3 +475,5 @@
543 common fspick sys_fspick
544 common pidfd_open sys_pidfd_open
# 545 reserved for clone3
+547 common openat2 sys_openat2
+548 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 26108ea785c2..5f448201955b 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -13,7 +13,7 @@ config ARC
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_SUPPORTS_ATOMIC_RMW if ARC_HAS_LLSC
select ARCH_32BIT_OFF_T
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
select DMA_DIRECT_REMAP
diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
index 41b16f21beec..0b8b63d0bec1 100644
--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -162,7 +162,7 @@
#endif
#ifdef CONFIG_ARC_HAS_ACCL_REGS
- ST2 r58, r59, PT_sp + 12
+ ST2 r58, r59, PT_r58
#endif
.endm
@@ -172,8 +172,8 @@
LD2 gp, fp, PT_r26 ; gp (r26), fp (r27)
- ld r12, [sp, PT_sp + 4]
- ld r30, [sp, PT_sp + 8]
+ ld r12, [sp, PT_r12]
+ ld r30, [sp, PT_r30]
; Restore SP (into AUX_USER_SP) only if returning to U mode
; - for K mode, it will be implicitly restored as stack is unwound
@@ -190,7 +190,7 @@
#endif
#ifdef CONFIG_ARC_HAS_ACCL_REGS
- LD2 r58, r59, PT_sp + 12
+ LD2 r58, r59, PT_r58
#endif
.endm
diff --git a/arch/arc/include/asm/hugepage.h b/arch/arc/include/asm/hugepage.h
index 9a74ce71a767..30ac40fed2c5 100644
--- a/arch/arc/include/asm/hugepage.h
+++ b/arch/arc/include/asm/hugepage.h
@@ -8,7 +8,6 @@
#define _ASM_ARC_HUGEPAGE_H
#include <linux/types.h>
-#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
static inline pte_t pmd_pte(pmd_t pmd)
diff --git a/arch/arc/include/asm/vmalloc.h b/arch/arc/include/asm/vmalloc.h
new file mode 100644
index 000000000000..973095aad665
--- /dev/null
+++ b/arch/arc/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_ARC_VMALLOC_H
+#define _ASM_ARC_VMALLOC_H
+
+#endif /* _ASM_ARC_VMALLOC_H */
diff --git a/arch/arc/kernel/asm-offsets.c b/arch/arc/kernel/asm-offsets.c
index 1f621e416521..c783bcd35eb8 100644
--- a/arch/arc/kernel/asm-offsets.c
+++ b/arch/arc/kernel/asm-offsets.c
@@ -66,7 +66,15 @@ int main(void)
DEFINE(SZ_CALLEE_REGS, sizeof(struct callee_regs));
DEFINE(SZ_PT_REGS, sizeof(struct pt_regs));
- DEFINE(PT_user_r25, offsetof(struct pt_regs, user_r25));
+
+#ifdef CONFIG_ISA_ARCV2
+ OFFSET(PT_r12, pt_regs, r12);
+ OFFSET(PT_r30, pt_regs, r30);
+#endif
+#ifdef CONFIG_ARC_HAS_ACCL_REGS
+ OFFSET(PT_r58, pt_regs, r58);
+ OFFSET(PT_r59, pt_regs, r59);
+#endif
return 0;
}
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 72be01270e24..1f6bb184a44d 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -337,11 +337,11 @@ resume_user_mode_begin:
resume_kernel_mode:
; Disable Interrupts from this point on
- ; CONFIG_PREEMPT: This is a must for preempt_schedule_irq()
- ; !CONFIG_PREEMPT: To ensure restore_regs is intr safe
+ ; CONFIG_PREEMPTION: This is a must for preempt_schedule_irq()
+ ; !CONFIG_PREEMPTION: To ensure restore_regs is intr safe
IRQ_DISABLE r9
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
; Can't preempt if preemption disabled
GET_CURR_THR_INFO_FROM_SP r10
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 7ee89dc61f6e..e1c647490f00 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -572,10 +572,6 @@ void __init setup_arch(char **cmdline_p)
*/
root_mountflags &= ~MS_RDONLY;
-#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-
arc_unwind_init();
}
diff --git a/arch/arc/plat-eznps/Kconfig b/arch/arc/plat-eznps/Kconfig
index a376a50d3fea..a931d0a256d0 100644
--- a/arch/arc/plat-eznps/Kconfig
+++ b/arch/arc/plat-eznps/Kconfig
@@ -7,7 +7,7 @@
menuconfig ARC_PLAT_EZNPS
bool "\"EZchip\" ARC dev platform"
select CPU_BIG_ENDIAN
- select CLKSRC_NPS
+ select CLKSRC_NPS if !PHYS_ADDR_T_64BIT
select EZNPS_GIC
select EZCHIP_NPS_MANAGEMENT_ENET if ETHERNET
help
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ba75e3661a41..0b1b1c66bce9 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -36,7 +36,7 @@ config ARM
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
select ARCH_WANT_IPC_PARSE_VERSION
select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
- select BUILDTIME_EXTABLE_SORT if MMU
+ select BUILDTIME_TABLE_SORT if MMU
select CLONE_BACKWARDS
select CPU_PM if SUSPEND || CPU_IDLE
select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
@@ -72,6 +72,7 @@ config ARM
select HAVE_ARM_SMCCC if CPU_V7
select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32
select HAVE_CONTEXT_TRACKING
+ select HAVE_COPY_THREAD_TLS
select HAVE_C_RECORDMCOUNT
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS if MMU
diff --git a/arch/arm/boot/dts/am335x-boneblack-common.dtsi b/arch/arm/boot/dts/am335x-boneblack-common.dtsi
index 7ad079861efd..91f93bc89716 100644
--- a/arch/arm/boot/dts/am335x-boneblack-common.dtsi
+++ b/arch/arm/boot/dts/am335x-boneblack-common.dtsi
@@ -131,6 +131,11 @@
};
/ {
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x80000000 0x20000000>; /* 512 MB */
+ };
+
clk_mcasp0_fixed: clk_mcasp0_fixed {
#clock-cells = <0>;
compatible = "fixed-clock";
diff --git a/arch/arm/boot/dts/am335x-sancloud-bbe.dts b/arch/arm/boot/dts/am335x-sancloud-bbe.dts
index 8678e6e35493..e5fdb7abb0d5 100644
--- a/arch/arm/boot/dts/am335x-sancloud-bbe.dts
+++ b/arch/arm/boot/dts/am335x-sancloud-bbe.dts
@@ -108,7 +108,7 @@
&cpsw_emac0 {
phy-handle = <&ethphy0>;
- phy-mode = "rgmii-txid";
+ phy-mode = "rgmii-id";
};
&i2c0 {
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index cae4500194fe..811c8cae315b 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -86,7 +86,7 @@
};
lcd0: display {
- compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";
+ compatible = "osddisplays,osd070t1718-19ts", "panel-dpi";
label = "lcd";
backlight = <&lcd_bl>;
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 95314121d111..a6fbc088daa8 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -42,7 +42,7 @@
};
lcd0: display {
- compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";
+ compatible = "osddisplays,osd070t1718-19ts", "panel-dpi";
label = "lcd";
backlight = <&lcd_bl>;
@@ -848,6 +848,7 @@
pinctrl-names = "default", "sleep";
pinctrl-0 = <&spi0_pins_default>;
pinctrl-1 = <&spi0_pins_sleep>;
+ ti,pindir-d0-out-d1-in = <1>;
};
&spi1 {
@@ -855,6 +856,7 @@
pinctrl-names = "default", "sleep";
pinctrl-0 = <&spi1_pins_default>;
pinctrl-1 = <&spi1_pins_sleep>;
+ ti,pindir-d0-out-d1-in = <1>;
};
&usb2_phy1 {
diff --git a/arch/arm/boot/dts/am571x-idk.dts b/arch/arm/boot/dts/am571x-idk.dts
index 820ce3b60bb6..669559c9c95b 100644
--- a/arch/arm/boot/dts/am571x-idk.dts
+++ b/arch/arm/boot/dts/am571x-idk.dts
@@ -167,11 +167,7 @@
&pcie1_rc {
status = "okay";
- gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
-};
-
-&pcie1_ep {
- gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+ gpios = <&gpio5 18 GPIO_ACTIVE_HIGH>;
};
&mmc1 {
diff --git a/arch/arm/boot/dts/am572x-idk-common.dtsi b/arch/arm/boot/dts/am572x-idk-common.dtsi
index a064f13b3880..ddf123620e96 100644
--- a/arch/arm/boot/dts/am572x-idk-common.dtsi
+++ b/arch/arm/boot/dts/am572x-idk-common.dtsi
@@ -147,10 +147,6 @@
gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
};
-&pcie1_ep {
- gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>;
-};
-
&mailbox5 {
status = "okay";
mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {
diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
index bc76f1705c0f..a813a0cf3ff3 100644
--- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
@@ -29,6 +29,27 @@
reg = <0x0 0x80000000 0x0 0x80000000>;
};
+ main_12v0: fixedregulator-main_12v0 {
+ /* main supply */
+ compatible = "regulator-fixed";
+ regulator-name = "main_12v0";
+ regulator-min-microvolt = <12000000>;
+ regulator-max-microvolt = <12000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ evm_5v0: fixedregulator-evm_5v0 {
+ /* Output of TPS54531D */
+ compatible = "regulator-fixed";
+ regulator-name = "evm_5v0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&main_12v0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
vdd_3v3: fixedregulator-vdd_3v3 {
compatible = "regulator-fixed";
regulator-name = "vdd_3v3";
@@ -547,10 +568,6 @@
gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
};
-&pcie1_ep {
- gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
-};
-
&mcasp3 {
#sound-dai-cells = <0>;
assigned-clocks = <&l4per2_clkctrl DRA7_L4PER2_MCASP3_CLKCTRL 24>;
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
index c1c9cd30f980..13f7aefe045e 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
@@ -258,9 +258,9 @@
};
};
- pca0: pca9552@60 {
+ pca0: pca9552@61 {
compatible = "nxp,pca9552";
- reg = <0x60>;
+ reg = <0x61>;
#address-cells = <1>;
#size-cells = <0>;
@@ -521,371 +521,6 @@
&i2c13 {
status = "okay";
-};
-
-&i2c14 {
- status = "okay";
-};
-
-&i2c15 {
- status = "okay";
-};
-
-&i2c0 {
- status = "okay";
-};
-
-&i2c1 {
- status = "okay";
-};
-
-&i2c2 {
- status = "okay";
-};
-
-&i2c3 {
- status = "okay";
-
- power-supply@68 {
- compatible = "ibm,cffps2";
- reg = <0x68>;
- };
-
- power-supply@69 {
- compatible = "ibm,cffps2";
- reg = <0x69>;
- };
-
- power-supply@6a {
- compatible = "ibm,cffps2";
- reg = <0x6a>;
- };
-
- power-supply@6b {
- compatible = "ibm,cffps2";
- reg = <0x6b>;
- };
-};
-
-&i2c4 {
- status = "okay";
-
- tmp275@48 {
- compatible = "ti,tmp275";
- reg = <0x48>;
- };
-
- tmp275@49 {
- compatible = "ti,tmp275";
- reg = <0x49>;
- };
-
- tmp275@4a {
- compatible = "ti,tmp275";
- reg = <0x4a>;
- };
-};
-
-&i2c5 {
- status = "okay";
-
- tmp275@48 {
- compatible = "ti,tmp275";
- reg = <0x48>;
- };
-
- tmp275@49 {
- compatible = "ti,tmp275";
- reg = <0x49>;
- };
-};
-
-&i2c6 {
- status = "okay";
-
- tmp275@48 {
- compatible = "ti,tmp275";
- reg = <0x48>;
- };
-
- tmp275@4a {
- compatible = "ti,tmp275";
- reg = <0x4a>;
- };
-
- tmp275@4b {
- compatible = "ti,tmp275";
- reg = <0x4b>;
- };
-};
-
-&i2c7 {
- status = "okay";
-
- si7021-a20@20 {
- compatible = "silabs,si7020";
- reg = <0x20>;
- };
-
- tmp275@48 {
- compatible = "ti,tmp275";
- reg = <0x48>;
- };
-
- max31785@52 {
- compatible = "maxim,max31785a";
- reg = <0x52>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- fan@0 {
- compatible = "pmbus-fan";
- reg = <0>;
- tach-pulses = <2>;
- };
-
- fan@1 {
- compatible = "pmbus-fan";
- reg = <1>;
- tach-pulses = <2>;
- };
-
- fan@2 {
- compatible = "pmbus-fan";
- reg = <2>;
- tach-pulses = <2>;
- };
-
- fan@3 {
- compatible = "pmbus-fan";
- reg = <3>;
- tach-pulses = <2>;
- };
- };
-
- pca0: pca9552@60 {
- compatible = "nxp,pca9552";
- reg = <0x60>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- gpio@0 {
- reg = <0>;
- };
-
- gpio@1 {
- reg = <1>;
- };
-
- gpio@2 {
- reg = <2>;
- };
-
- gpio@3 {
- reg = <3>;
- };
-
- gpio@4 {
- reg = <4>;
- };
-
- gpio@5 {
- reg = <5>;
- };
-
- gpio@6 {
- reg = <6>;
- };
-
- gpio@7 {
- reg = <7>;
- };
-
- gpio@8 {
- reg = <8>;
- };
-
- gpio@9 {
- reg = <9>;
- };
-
- gpio@10 {
- reg = <10>;
- };
-
- gpio@11 {
- reg = <11>;
- };
-
- gpio@12 {
- reg = <12>;
- };
-
- gpio@13 {
- reg = <13>;
- };
-
- gpio@14 {
- reg = <14>;
- };
-
- gpio@15 {
- reg = <15>;
- };
- };
-
- dps: dps310@76 {
- compatible = "infineon,dps310";
- reg = <0x76>;
- #io-channel-cells = <0>;
- };
-};
-
-&i2c8 {
- status = "okay";
-
- ucd90320@b {
- compatible = "ti,ucd90160";
- reg = <0x0b>;
- };
-
- ucd90320@c {
- compatible = "ti,ucd90160";
- reg = <0x0c>;
- };
-
- ucd90320@11 {
- compatible = "ti,ucd90160";
- reg = <0x11>;
- };
-
- rtc@32 {
- compatible = "epson,rx8900";
- reg = <0x32>;
- };
-
- tmp275@48 {
- compatible = "ti,tmp275";
- reg = <0x48>;
- };
-
- tmp275@4a {
- compatible = "ti,tmp275";
- reg = <0x4a>;
- };
-};
-
-&i2c9 {
- status = "okay";
-
- ir35221@42 {
- compatible = "infineon,ir35221";
- reg = <0x42>;
- };
-
- ir35221@43 {
- compatible = "infineon,ir35221";
- reg = <0x43>;
- };
-
- ir35221@44 {
- compatible = "infineon,ir35221";
- reg = <0x44>;
- };
-
- tmp423a@4c {
- compatible = "ti,tmp423";
- reg = <0x4c>;
- };
-
- tmp423b@4d {
- compatible = "ti,tmp423";
- reg = <0x4d>;
- };
-
- ir35221@72 {
- compatible = "infineon,ir35221";
- reg = <0x72>;
- };
-
- ir35221@73 {
- compatible = "infineon,ir35221";
- reg = <0x73>;
- };
-
- ir35221@74 {
- compatible = "infineon,ir35221";
- reg = <0x74>;
- };
-};
-
-&i2c10 {
- status = "okay";
-
- ir35221@42 {
- compatible = "infineon,ir35221";
- reg = <0x42>;
- };
-
- ir35221@43 {
- compatible = "infineon,ir35221";
- reg = <0x43>;
- };
-
- ir35221@44 {
- compatible = "infineon,ir35221";
- reg = <0x44>;
- };
-
- tmp423a@4c {
- compatible = "ti,tmp423";
- reg = <0x4c>;
- };
-
- tmp423b@4d {
- compatible = "ti,tmp423";
- reg = <0x4d>;
- };
-
- ir35221@72 {
- compatible = "infineon,ir35221";
- reg = <0x72>;
- };
-
- ir35221@73 {
- compatible = "infineon,ir35221";
- reg = <0x73>;
- };
-
- ir35221@74 {
- compatible = "infineon,ir35221";
- reg = <0x74>;
- };
-};
-
-&i2c11 {
- status = "okay";
-
- tmp275@48 {
- compatible = "ti,tmp275";
- reg = <0x48>;
- };
-
- tmp275@49 {
- compatible = "ti,tmp275";
- reg = <0x49>;
- };
-};
-
-&i2c12 {
- status = "okay";
-};
-
-&i2c13 {
- status = "okay";
eeprom@50 {
compatible = "atmel,24c64";
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
index f02de4ab058c..ff49ec76fa7c 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
@@ -122,37 +122,6 @@
};
};
-&fmc {
- status = "okay";
- flash@0 {
- status = "okay";
- m25p,fast-read;
- label = "bmc";
- spi-max-frequency = <50000000>;
-#include "openbmc-flash-layout-128.dtsi"
- };
-
- flash@1 {
- status = "okay";
- m25p,fast-read;
- label = "alt-bmc";
- spi-max-frequency = <50000000>;
- };
-};
-
-&spi1 {
- status = "okay";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_spi1_default>;
-
- flash@0 {
- status = "okay";
- m25p,fast-read;
- label = "pnor";
- spi-max-frequency = <100000000>;
- };
-};
-
&mac2 {
status = "okay";
pinctrl-names = "default";
@@ -165,6 +134,11 @@
&emmc {
status = "okay";
+};
+
+&fsim0 {
+ status = "okay";
+
#address-cells = <2>;
#size-cells = <0>;
@@ -820,373 +794,6 @@
status = "okay";
};
-&i2c0 {
- status = "okay";
-};
-
-&i2c1 {
- status = "okay";
-};
-
-&i2c2 {
- status = "okay";
-};
-
-&i2c3 {
- status = "okay";
-
- bmp: bmp280@77 {
- compatible = "bosch,bmp280";
- reg = <0x77>;
- #io-channel-cells = <1>;
- };
-
- max31785@52 {
- compatible = "maxim,max31785a";
- reg = <0x52>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- fan@0 {
- compatible = "pmbus-fan";
- reg = <0>;
- tach-pulses = <2>;
- maxim,fan-rotor-input = "tach";
- maxim,fan-pwm-freq = <25000>;
- maxim,fan-dual-tach;
- maxim,fan-no-watchdog;
- maxim,fan-no-fault-ramp;
- maxim,fan-ramp = <2>;
- maxim,fan-fault-pin-mon;
- };
-
- fan@1 {
- compatible = "pmbus-fan";
- reg = <1>;
- tach-pulses = <2>;
- maxim,fan-rotor-input = "tach";
- maxim,fan-pwm-freq = <25000>;
- maxim,fan-dual-tach;
- maxim,fan-no-watchdog;
- maxim,fan-no-fault-ramp;
- maxim,fan-ramp = <2>;
- maxim,fan-fault-pin-mon;
- };
-
- fan@2 {
- compatible = "pmbus-fan";
- reg = <2>;
- tach-pulses = <2>;
- maxim,fan-rotor-input = "tach";
- maxim,fan-pwm-freq = <25000>;
- maxim,fan-dual-tach;
- maxim,fan-no-watchdog;
- maxim,fan-no-fault-ramp;
- maxim,fan-ramp = <2>;
- maxim,fan-fault-pin-mon;
- };
-
- fan@3 {
- compatible = "pmbus-fan";
- reg = <3>;
- tach-pulses = <2>;
- maxim,fan-rotor-input = "tach";
- maxim,fan-pwm-freq = <25000>;
- maxim,fan-dual-tach;
- maxim,fan-no-watchdog;
- maxim,fan-no-fault-ramp;
- maxim,fan-ramp = <2>;
- maxim,fan-fault-pin-mon;
- };
- };
-
- dps: dps310@76 {
- compatible = "infineon,dps310";
- reg = <0x76>;
- #io-channel-cells = <0>;
- };
-
- pca0: pca9552@60 {
- compatible = "nxp,pca9552";
- reg = <0x60>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- gpio-controller;
- #gpio-cells = <2>;
-
- gpio@0 {
- reg = <0>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@1 {
- reg = <1>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@2 {
- reg = <2>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@3 {
- reg = <3>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@4 {
- reg = <4>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@5 {
- reg = <5>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@6 {
- reg = <6>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@7 {
- reg = <7>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@8 {
- reg = <8>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@9 {
- reg = <9>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@10 {
- reg = <10>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@11 {
- reg = <11>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@12 {
- reg = <12>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@13 {
- reg = <13>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@14 {
- reg = <14>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@15 {
- reg = <15>;
- type = <PCA955X_TYPE_GPIO>;
- };
- };
-
- power-supply@68 {
- compatible = "ibm,cffps1";
- reg = <0x68>;
- };
-
- power-supply@69 {
- compatible = "ibm,cffps1";
- reg = <0x69>;
- };
-};
-
-&i2c4 {
- status = "okay";
-
- tmp423a@4c {
- compatible = "ti,tmp423";
- reg = <0x4c>;
- };
-
- ir35221@70 {
- compatible = "infineon,ir35221";
- reg = <0x70>;
- };
-
- ir35221@71 {
- compatible = "infineon,ir35221";
- reg = <0x71>;
- };
-};
-
-&i2c5 {
- status = "okay";
-
- tmp423a@4c {
- compatible = "ti,tmp423";
- reg = <0x4c>;
- };
-
- ir35221@70 {
- compatible = "infineon,ir35221";
- reg = <0x70>;
- };
-
- ir35221@71 {
- compatible = "infineon,ir35221";
- reg = <0x71>;
- };
-};
-
-&i2c7 {
- status = "okay";
-};
-
-&i2c9 {
- status = "okay";
-
- tmp275@4a {
- compatible = "ti,tmp275";
- reg = <0x4a>;
- };
-};
-
-&i2c10 {
- status = "okay";
-};
-
-&i2c11 {
- status = "okay";
-
- pca9552: pca9552@60 {
- compatible = "nxp,pca9552";
- reg = <0x60>;
- #address-cells = <1>;
- #size-cells = <0>;
- gpio-controller;
- #gpio-cells = <2>;
-
- gpio-line-names = "PS_SMBUS_RESET_N", "APSS_RESET_N",
- "GPU0_TH_OVERT_N_BUFF", "GPU1_TH_OVERT_N_BUFF",
- "GPU2_TH_OVERT_N_BUFF", "GPU3_TH_OVERT_N_BUFF",
- "GPU4_TH_OVERT_N_BUFF", "GPU5_TH_OVERT_N_BUFF",
- "GPU0_PWR_GOOD_BUFF", "GPU1_PWR_GOOD_BUFF",
- "GPU2_PWR_GOOD_BUFF", "GPU3_PWR_GOOD_BUFF",
- "GPU4_PWR_GOOD_BUFF", "GPU5_PWR_GOOD_BUFF",
- "12V_BREAKER_FLT_N", "THROTTLE_UNLATCHED_N";
-
- gpio@0 {
- reg = <0>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@1 {
- reg = <1>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@2 {
- reg = <2>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@3 {
- reg = <3>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@4 {
- reg = <4>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@5 {
- reg = <5>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@6 {
- reg = <6>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@7 {
- reg = <7>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@8 {
- reg = <8>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@9 {
- reg = <9>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@10 {
- reg = <10>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@11 {
- reg = <11>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@12 {
- reg = <12>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@13 {
- reg = <13>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@14 {
- reg = <14>;
- type = <PCA955X_TYPE_GPIO>;
- };
-
- gpio@15 {
- reg = <15>;
- type = <PCA955X_TYPE_GPIO>;
- };
- };
-
- rtc@32 {
- compatible = "epson,rx8900";
- reg = <0x32>;
- };
-
- eeprom@51 {
- compatible = "atmel,24c64";
- reg = <0x51>;
- };
-
- ucd90160@64 {
- compatible = "ti,ucd90160";
- reg = <0x64>;
- };
-};
-
-&i2c12 {
- status = "okay";
-};
-
-&i2c13 {
- status = "okay";
-};
-
&pinctrl {
/* Hog these as no driver is probed for the entire LPC block */
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
index 5f6142d99eeb..b72afbaadaf8 100644
--- a/arch/arm/boot/dts/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6.dtsi
@@ -163,26 +163,6 @@
spi-max-frequency = <50000000>;
status = "disabled";
};
-
- fsim0: fsi@1e79b000 {
- compatible = "aspeed,ast2600-fsi-master", "fsi-master";
- reg = <0x1e79b000 0x94>;
- interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_fsi1_default>;
- clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;
- status = "disabled";
- };
-
- fsim1: fsi@1e79b100 {
- compatible = "aspeed,ast2600-fsi-master", "fsi-master";
- reg = <0x1e79b100 0x94>;
- interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_fsi2_default>;
- clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;
- status = "disabled";
- };
};
mdio0: mdio@1e650000 {
@@ -595,6 +575,25 @@
ranges = <0 0x1e78a000 0x1000>;
};
+ fsim0: fsi@1e79b000 {
+ compatible = "aspeed,ast2600-fsi-master", "fsi-master";
+ reg = <0x1e79b000 0x94>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fsi1_default>;
+ clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;
+ status = "disabled";
+ };
+
+ fsim1: fsi@1e79b100 {
+ compatible = "aspeed,ast2600-fsi-master", "fsi-master";
+ reg = <0x1e79b100 0x94>;
+ interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fsi2_default>;
+ clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;
+ status = "disabled";
+ };
};
};
};
diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
index 2dac3efc7640..1bc45cfd5453 100644
--- a/arch/arm/boot/dts/bcm-cygnus.dtsi
+++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
@@ -174,8 +174,8 @@
mdio: mdio@18002000 {
compatible = "brcm,iproc-mdio";
reg = <0x18002000 0x8>;
- #size-cells = <1>;
- #address-cells = <0>;
+ #size-cells = <0>;
+ #address-cells = <1>;
status = "disabled";
gphy0: ethernet-phy@0 {
diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
index 961bed832755..8eedd6eb409b 100644
--- a/arch/arm/boot/dts/bcm2711.dtsi
+++ b/arch/arm/boot/dts/bcm2711.dtsi
@@ -43,7 +43,7 @@
<0x7c000000 0x0 0xfc000000 0x02000000>,
<0x40000000 0x0 0xff800000 0x00800000>;
/* Emulate a contiguous 30-bit address range for DMA */
- dma-ranges = <0xc0000000 0x0 0x00000000 0x3c000000>;
+ dma-ranges = <0xc0000000 0x0 0x00000000 0x40000000>;
/*
* This node is the provider for the enable-method for
@@ -66,6 +66,17 @@
IRQ_TYPE_LEVEL_HIGH)>;
};
+ avs_monitor: avs-monitor@7d5d2000 {
+ compatible = "brcm,bcm2711-avs-monitor",
+ "syscon", "simple-mfd";
+ reg = <0x7d5d2000 0xf00>;
+
+ thermal: thermal {
+ compatible = "brcm,bcm2711-thermal";
+ #thermal-sensor-cells = <0>;
+ };
+ };
+
dma: dma@7e007000 {
compatible = "brcm,bcm2835-dma";
reg = <0x7e007000 0xb00>;
@@ -363,6 +374,7 @@
&cpu_thermal {
coefficients = <(-487) 410040>;
+ thermal-sensors = <&thermal>;
};
&dsi0 {
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 3caaa57eb6c8..839491628e87 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -37,7 +37,7 @@
trips {
cpu-crit {
- temperature = <80000>;
+ temperature = <90000>;
hysteresis = <0>;
type = "critical";
};
diff --git a/arch/arm/boot/dts/bcm5301x.dtsi b/arch/arm/boot/dts/bcm5301x.dtsi
index 372dc1eb88a0..2d9b4dd05830 100644
--- a/arch/arm/boot/dts/bcm5301x.dtsi
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -353,8 +353,8 @@
mdio: mdio@18003000 {
compatible = "brcm,iproc-mdio";
reg = <0x18003000 0x8>;
- #size-cells = <1>;
- #address-cells = <0>;
+ #size-cells = <0>;
+ #address-cells = <1>;
};
mdio-bus-mux@18003000 {
diff --git a/arch/arm/boot/dts/e60k02.dtsi b/arch/arm/boot/dts/e60k02.dtsi
index 6472b056a001..5a2c5320437d 100644
--- a/arch/arm/boot/dts/e60k02.dtsi
+++ b/arch/arm/boot/dts/e60k02.dtsi
@@ -265,11 +265,6 @@
regulator-name = "LDORTC1";
regulator-boot-on;
};
-
- ldortc2_reg: LDORTC2 {
- regulator-name = "LDORTC2";
- regulator-boot-on;
- };
};
};
};
diff --git a/arch/arm/boot/dts/imx6dl-icore-mipi.dts b/arch/arm/boot/dts/imx6dl-icore-mipi.dts
index e43bccb78ab2..d8f3821a0ffd 100644
--- a/arch/arm/boot/dts/imx6dl-icore-mipi.dts
+++ b/arch/arm/boot/dts/imx6dl-icore-mipi.dts
@@ -8,7 +8,7 @@
/dts-v1/;
#include "imx6dl.dtsi"
-#include "imx6qdl-icore.dtsi"
+#include "imx6qdl-icore-1.5.dtsi"
/ {
model = "Engicam i.CoreM6 DualLite/Solo MIPI Starter Kit";
diff --git a/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts b/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts
index 5219553df1e7..bb74fc62d913 100644
--- a/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts
+++ b/arch/arm/boot/dts/imx6q-dhcom-pdk2.dts
@@ -63,7 +63,7 @@
#sound-dai-cells = <0>;
clocks = <&clk_ext_audio_codec>;
VDDA-supply = <&reg_3p3v>;
- VDDIO-supply = <&reg_3p3v>;
+ VDDIO-supply = <&sw2_reg>;
};
};
diff --git a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
index 845cfad99bf9..87f0aa897086 100644
--- a/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
+++ b/arch/arm/boot/dts/imx6q-dhcom-som.dtsi
@@ -204,7 +204,7 @@
};
rtc@56 {
- compatible = "rv3029c2";
+ compatible = "microcrystal,rv3029";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rtc_hw300>;
reg = <0x56>;
diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 71ca76a5e4a5..fe59dde41b64 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -749,10 +749,6 @@
vin-supply = <&vgen5_reg>;
};
-&reg_vdd3p0 {
- vin-supply = <&sw2_reg>;
-};
-
&reg_vdd2p5 {
vin-supply = <&vgen5_reg>;
};
diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index 4829aa682aeb..bc86cfaaa9c2 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -584,10 +584,6 @@
vin-supply = <&sw2_reg>;
};
-&reg_vdd3p0 {
- vin-supply = <&sw2_reg>;
-};
-
&reg_vdd2p5 {
vin-supply = <&sw2_reg>;
};
diff --git a/arch/arm/boot/dts/imx6sll-evk.dts b/arch/arm/boot/dts/imx6sll-evk.dts
index 3e1d32fdf4b8..5ace9e6acf85 100644
--- a/arch/arm/boot/dts/imx6sll-evk.dts
+++ b/arch/arm/boot/dts/imx6sll-evk.dts
@@ -265,10 +265,6 @@
status = "okay";
};
-&reg_3p0 {
- vin-supply = <&sw2_reg>;
-};
-
&snvs_poweroff {
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6sx-sdb-reva.dts b/arch/arm/boot/dts/imx6sx-sdb-reva.dts
index f1830ed387a5..91a7548fdb8d 100644
--- a/arch/arm/boot/dts/imx6sx-sdb-reva.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb-reva.dts
@@ -159,10 +159,6 @@
vin-supply = <&vgen6_reg>;
};
-&reg_vdd3p0 {
- vin-supply = <&sw2_reg>;
-};
-
&reg_vdd2p5 {
vin-supply = <&vgen6_reg>;
};
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index a8ee7087af5a..5a63ca615722 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -141,10 +141,6 @@
vin-supply = <&vgen6_reg>;
};
-&reg_vdd3p0 {
- vin-supply = <&sw2_reg>;
-};
-
&reg_vdd2p5 {
vin-supply = <&vgen6_reg>;
};
diff --git a/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi b/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
index 1506eb12b21e..212144511b66 100644
--- a/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
+++ b/arch/arm/boot/dts/imx6ul-14x14-evk.dtsi
@@ -30,14 +30,26 @@
enable-active-high;
};
- reg_sensors: regulator-sensors {
+ reg_peri_3v3: regulator-peri-3v3 {
compatible = "regulator-fixed";
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_sensors_reg>;
- regulator-name = "sensors-supply";
+ pinctrl-0 = <&pinctrl_peri_3v3>;
+ regulator-name = "VPERI_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio5 2 GPIO_ACTIVE_LOW>;
+ /*
+ * If you want to want to make this dynamic please
+ * check schematics and test all affected peripherals:
+ *
+ * - sensors
+ * - ethernet phy
+ * - can
+ * - bluetooth
+ * - wm8960 audio codec
+ * - ov5640 camera
+ */
+ regulator-always-on;
};
reg_can_3v3: regulator-can-3v3 {
@@ -140,6 +152,7 @@
pinctrl-0 = <&pinctrl_enet1>;
phy-mode = "rmii";
phy-handle = <&ethphy0>;
+ phy-supply = <&reg_peri_3v3>;
status = "okay";
};
@@ -148,6 +161,7 @@
pinctrl-0 = <&pinctrl_enet2>;
phy-mode = "rmii";
phy-handle = <&ethphy1>;
+ phy-supply = <&reg_peri_3v3>;
status = "okay";
mdio {
@@ -193,8 +207,8 @@
magnetometer@e {
compatible = "fsl,mag3110";
reg = <0x0e>;
- vdd-supply = <&reg_sensors>;
- vddio-supply = <&reg_sensors>;
+ vdd-supply = <&reg_peri_3v3>;
+ vddio-supply = <&reg_peri_3v3>;
};
};
@@ -227,7 +241,7 @@
flash0: n25q256a@0 {
#address-cells = <1>;
#size-cells = <1>;
- compatible = "micron,n25q256a";
+ compatible = "micron,n25q256a", "jedec,spi-nor";
spi-max-frequency = <29000000>;
spi-rx-bus-width = <4>;
spi-tx-bus-width = <4>;
@@ -462,7 +476,7 @@
>;
};
- pinctrl_sensors_reg: sensorsreggrp {
+ pinctrl_peri_3v3: peri3v3grp {
fsl,pins = <
MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02 0x1b0b0
>;
diff --git a/arch/arm/boot/dts/imx7s-colibri.dtsi b/arch/arm/boot/dts/imx7s-colibri.dtsi
index 1fb1ec5d3d70..6d16e32aed89 100644
--- a/arch/arm/boot/dts/imx7s-colibri.dtsi
+++ b/arch/arm/boot/dts/imx7s-colibri.dtsi
@@ -49,3 +49,7 @@
reg = <0x80000000 0x10000000>;
};
};
+
+&gpmi {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi
index d37a1927c88e..ab91c98f2124 100644
--- a/arch/arm/boot/dts/imx7ulp.dtsi
+++ b/arch/arm/boot/dts/imx7ulp.dtsi
@@ -37,10 +37,10 @@
#address-cells = <1>;
#size-cells = <0>;
- cpu0: cpu@0 {
+ cpu0: cpu@f00 {
compatible = "arm,cortex-a7";
device_type = "cpu";
- reg = <0>;
+ reg = <0xf00>;
};
};
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index 5a7e3e5caebe..3c534cd50ee3 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -253,7 +253,7 @@
&aobus {
pmu: pmu@e0 {
compatible = "amlogic,meson8-pmu", "syscon";
- reg = <0xe0 0x8>;
+ reg = <0xe0 0x18>;
};
pinctrl_aobus: pinctrl@84 {
diff --git a/arch/arm/boot/dts/mmp3.dtsi b/arch/arm/boot/dts/mmp3.dtsi
index d9762de0ed34..6f480827b94d 100644
--- a/arch/arm/boot/dts/mmp3.dtsi
+++ b/arch/arm/boot/dts/mmp3.dtsi
@@ -356,7 +356,7 @@
twsi1: i2c@d4011000 {
compatible = "mrvl,mmp-twsi";
- reg = <0xd4011000 0x1000>;
+ reg = <0xd4011000 0x70>;
interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&soc_clocks MMP2_CLK_TWSI0>;
resets = <&soc_clocks MMP2_CLK_TWSI0>;
@@ -368,7 +368,7 @@
twsi2: i2c@d4031000 {
compatible = "mrvl,mmp-twsi";
- reg = <0xd4031000 0x1000>;
+ reg = <0xd4031000 0x70>;
interrupt-parent = <&twsi_mux>;
interrupts = <0>;
clocks = <&soc_clocks MMP2_CLK_TWSI1>;
@@ -380,7 +380,7 @@
twsi3: i2c@d4032000 {
compatible = "mrvl,mmp-twsi";
- reg = <0xd4032000 0x1000>;
+ reg = <0xd4032000 0x70>;
interrupt-parent = <&twsi_mux>;
interrupts = <1>;
clocks = <&soc_clocks MMP2_CLK_TWSI2>;
@@ -392,7 +392,7 @@
twsi4: i2c@d4033000 {
compatible = "mrvl,mmp-twsi";
- reg = <0xd4033000 0x1000>;
+ reg = <0xd4033000 0x70>;
interrupt-parent = <&twsi_mux>;
interrupts = <2>;
clocks = <&soc_clocks MMP2_CLK_TWSI3>;
@@ -405,7 +405,7 @@
twsi5: i2c@d4033800 {
compatible = "mrvl,mmp-twsi";
- reg = <0xd4033800 0x1000>;
+ reg = <0xd4033800 0x70>;
interrupt-parent = <&twsi_mux>;
interrupts = <3>;
clocks = <&soc_clocks MMP2_CLK_TWSI4>;
@@ -417,7 +417,7 @@
twsi6: i2c@d4034000 {
compatible = "mrvl,mmp-twsi";
- reg = <0xd4034000 0x1000>;
+ reg = <0xd4034000 0x70>;
interrupt-parent = <&twsi_mux>;
interrupts = <4>;
clocks = <&soc_clocks MMP2_CLK_TWSI5>;
diff --git a/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts b/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts
index 26160c324802..942e3a2cac35 100644
--- a/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts
+++ b/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts
@@ -143,7 +143,7 @@
compatible = "smsc,usb3503a";
reg = <0x8>;
connect-gpios = <&gpioext2 1 GPIO_ACTIVE_HIGH>;
- intn-gpios = <&gpioext2 0 GPIO_ACTIVE_LOW>;
+ intn-gpios = <&gpioext2 0 GPIO_ACTIVE_HIGH>;
initial-mode = <1>;
};
};
diff --git a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
index fb928503ad45..d9be511f054f 100644
--- a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
@@ -101,7 +101,7 @@
initial-mode = <1>; /* initialize in HUB mode */
disabled-ports = <1>;
intn-gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
- reset-gpios = <&pio 4 16 GPIO_ACTIVE_HIGH>; /* PE16 */
+ reset-gpios = <&pio 4 16 GPIO_ACTIVE_LOW>; /* PE16 */
connect-gpios = <&pio 4 17 GPIO_ACTIVE_HIGH>; /* PE17 */
refclk-frequency = <19200000>;
};
diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index e7e4bb5ad8d5..fde84f123fbb 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -350,6 +350,7 @@ CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_DETECT_HUNG_TASK is not set
diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index 26d6dee67aa6..3608e55eaecd 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -462,6 +462,7 @@ CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_PRINTK_TIME=y
CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_FS=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_PROVE_LOCKING=y
# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 3f1b96dc7faa..f5d19cc1f4f2 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -496,6 +496,7 @@ CONFIG_IMX_THERMAL=y
CONFIG_ROCKCHIP_THERMAL=y
CONFIG_RCAR_THERMAL=y
CONFIG_ARMADA_THERMAL=y
+CONFIG_BCM2711_THERMAL=m
CONFIG_BCM2835_THERMAL=m
CONFIG_BRCMSTB_THERMAL=m
CONFIG_ST_THERMAL_MEMMAP=y
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 8c37cc8ab6f2..c32c338f7704 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -92,6 +92,7 @@ CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
CONFIG_NETFILTER=y
CONFIG_PHONET=m
+CONFIG_NET_SWITCHDEV=y
CONFIG_CAN=m
CONFIG_CAN_C_CAN=m
CONFIG_CAN_C_CAN_PLATFORM=m
@@ -181,6 +182,7 @@ CONFIG_SMSC911X=y
# CONFIG_NET_VENDOR_STMICRO is not set
CONFIG_TI_DAVINCI_EMAC=y
CONFIG_TI_CPSW=y
+CONFIG_TI_CPSW_SWITCHDEV=y
CONFIG_TI_CPTS=y
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
@@ -554,6 +556,6 @@ CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_INFO_SPLIT=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_FS=y
CONFIG_SCHEDSTATS=y
# CONFIG_DEBUG_BUGVERBOSE is not set
-CONFIG_TI_CPSW_SWITCHDEV=y
diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index bda57cafa2bc..de3830443613 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -212,4 +212,5 @@ CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=64
CONFIG_PRINTK_TIME=y
# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_DEBUG_FS=y
CONFIG_DEBUG_KERNEL=y
diff --git a/arch/arm/crypto/aes-ce-glue.c b/arch/arm/crypto/aes-ce-glue.c
index cdb1a07e7ad0..b668c97663ec 100644
--- a/arch/arm/crypto/aes-ce-glue.c
+++ b/arch/arm/crypto/aes-ce-glue.c
@@ -138,14 +138,8 @@ static int ce_aes_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
- int ret;
-
- ret = ce_aes_expandkey(ctx, in_key, key_len);
- if (!ret)
- return 0;
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
+ return ce_aes_expandkey(ctx, in_key, key_len);
}
struct crypto_aes_xts_ctx {
@@ -167,11 +161,7 @@ static int xts_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
if (!ret)
ret = ce_aes_expandkey(&ctx->key2, &in_key[key_len / 2],
key_len / 2);
- if (!ret)
- return 0;
-
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
+ return ret;
}
static int ecb_encrypt(struct skcipher_request *req)
diff --git a/arch/arm/crypto/chacha-glue.c b/arch/arm/crypto/chacha-glue.c
index 6ebbb2b241d2..6fdb0ac62b3d 100644
--- a/arch/arm/crypto/chacha-glue.c
+++ b/arch/arm/crypto/chacha-glue.c
@@ -115,7 +115,7 @@ static int chacha_stream_xor(struct skcipher_request *req,
if (nbytes < walk.total)
nbytes = round_down(nbytes, walk.stride);
- if (!neon) {
+ if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !neon) {
chacha_doarm(walk.dst.virt.addr, walk.src.virt.addr,
nbytes, state, ctx->nrounds);
state[12] += DIV_ROUND_UP(nbytes, CHACHA_BLOCK_SIZE);
@@ -159,7 +159,7 @@ static int do_xchacha(struct skcipher_request *req, bool neon)
chacha_init_generic(state, ctx->key, req->iv);
- if (!neon) {
+ if (!IS_ENABLED(CONFIG_KERNEL_MODE_NEON) || !neon) {
hchacha_block_arm(state, subctx.key, ctx->nrounds);
} else {
kernel_neon_begin();
diff --git a/arch/arm/crypto/crc32-ce-glue.c b/arch/arm/crypto/crc32-ce-glue.c
index 95592499b9bd..2208445808d7 100644
--- a/arch/arm/crypto/crc32-ce-glue.c
+++ b/arch/arm/crypto/crc32-ce-glue.c
@@ -54,10 +54,8 @@ static int crc32_setkey(struct crypto_shash *hash, const u8 *key,
{
u32 *mctx = crypto_shash_ctx(hash);
- if (keylen != sizeof(u32)) {
- crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(u32))
return -EINVAL;
- }
*mctx = le32_to_cpup((__le32 *)key);
return 0;
}
diff --git a/arch/arm/crypto/ghash-ce-glue.c b/arch/arm/crypto/ghash-ce-glue.c
index c691077679a6..a00fd329255f 100644
--- a/arch/arm/crypto/ghash-ce-glue.c
+++ b/arch/arm/crypto/ghash-ce-glue.c
@@ -163,10 +163,8 @@ static int ghash_setkey(struct crypto_shash *tfm,
struct ghash_key *key = crypto_shash_ctx(tfm);
be128 h;
- if (keylen != GHASH_BLOCK_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != GHASH_BLOCK_SIZE)
return -EINVAL;
- }
/* needed for the fallback */
memcpy(&key->k, inkey, GHASH_BLOCK_SIZE);
@@ -296,16 +294,11 @@ static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
{
struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
struct crypto_ahash *child = &ctx->cryptd_tfm->base;
- int err;
crypto_ahash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(child, crypto_ahash_get_flags(tfm)
& CRYPTO_TFM_REQ_MASK);
- err = crypto_ahash_setkey(child, key, keylen);
- crypto_ahash_set_flags(tfm, crypto_ahash_get_flags(child)
- & CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_ahash_setkey(child, key, keylen);
}
static int ghash_async_init_tfm(struct crypto_tfm *tfm)
diff --git a/arch/arm/crypto/poly1305-glue.c b/arch/arm/crypto/poly1305-glue.c
index abe3f2d587dc..ceec04ec2f40 100644
--- a/arch/arm/crypto/poly1305-glue.c
+++ b/arch/arm/crypto/poly1305-glue.c
@@ -20,7 +20,7 @@
void poly1305_init_arm(void *state, const u8 *key);
void poly1305_blocks_arm(void *state, const u8 *src, u32 len, u32 hibit);
-void poly1305_emit_arm(void *state, __le32 *digest, const u32 *nonce);
+void poly1305_emit_arm(void *state, u8 *digest, const u32 *nonce);
void __weak poly1305_blocks_neon(void *state, const u8 *src, u32 len, u32 hibit)
{
@@ -179,9 +179,6 @@ EXPORT_SYMBOL(poly1305_update_arch);
void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
{
- __le32 digest[4];
- u64 f = 0;
-
if (unlikely(dctx->buflen)) {
dctx->buf[dctx->buflen++] = 1;
memset(dctx->buf + dctx->buflen, 0,
@@ -189,18 +186,7 @@ void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
poly1305_blocks_arm(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
}
- poly1305_emit_arm(&dctx->h, digest, dctx->s);
-
- /* mac = (h + s) % (2^128) */
- f = (f >> 32) + le32_to_cpu(digest[0]);
- put_unaligned_le32(f, dst);
- f = (f >> 32) + le32_to_cpu(digest[1]);
- put_unaligned_le32(f, dst + 4);
- f = (f >> 32) + le32_to_cpu(digest[2]);
- put_unaligned_le32(f, dst + 8);
- f = (f >> 32) + le32_to_cpu(digest[3]);
- put_unaligned_le32(f, dst + 12);
-
+ poly1305_emit_arm(&dctx->h, dst, dctx->s);
*dctx = (struct poly1305_desc_ctx){};
}
EXPORT_SYMBOL(poly1305_final_arch);
diff --git a/arch/arm/include/asm/arch_gicv3.h b/arch/arm/include/asm/arch_gicv3.h
index fa50bb04f580..b5752f0e8936 100644
--- a/arch/arm/include/asm/arch_gicv3.h
+++ b/arch/arm/include/asm/arch_gicv3.h
@@ -10,6 +10,7 @@
#ifndef __ASSEMBLY__
#include <linux/io.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
#include <asm/barrier.h>
#include <asm/cacheflush.h>
#include <asm/cp15.h>
@@ -327,6 +328,7 @@ static inline u64 __gic_readq_nonatomic(const volatile void __iomem *addr)
/*
* GITS_VPROPBASER - hi and lo bits may be accessed independently.
*/
+#define gits_read_vpropbaser(c) __gic_readq_nonatomic(c)
#define gits_write_vpropbaser(v, c) __gic_writeq_nonatomic(v, c)
/*
diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h
index 7667826b93f1..5ac46e2860bc 100644
--- a/arch/arm/include/asm/efi.h
+++ b/arch/arm/include/asm/efi.h
@@ -50,19 +50,16 @@ void efi_virtmap_unload(void);
/* arch specific definitions used by the stub code */
-#define efi_call_early(f, ...) sys_table_arg->boottime->f(__VA_ARGS__)
-#define __efi_call_early(f, ...) f(__VA_ARGS__)
-#define efi_call_runtime(f, ...) sys_table_arg->runtime->f(__VA_ARGS__)
-#define efi_is_64bit() (false)
+#define efi_bs_call(func, ...) efi_system_table()->boottime->func(__VA_ARGS__)
+#define efi_rt_call(func, ...) efi_system_table()->runtime->func(__VA_ARGS__)
+#define efi_is_native() (true)
-#define efi_table_attr(table, attr, instance) \
- ((table##_t *)instance)->attr
+#define efi_table_attr(inst, attr) (inst->attr)
-#define efi_call_proto(protocol, f, instance, ...) \
- ((protocol##_t *)instance)->f(instance, ##__VA_ARGS__)
+#define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__)
-struct screen_info *alloc_screen_info(efi_system_table_t *sys_table_arg);
-void free_screen_info(efi_system_table_t *sys_table, struct screen_info *si);
+struct screen_info *alloc_screen_info(void);
+void free_screen_info(struct screen_info *si);
static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
{
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index aefdabdbeb84..ab2b654084fa 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -356,7 +356,6 @@ static inline void memcpy_toio(volatile void __iomem *to, const void *from,
*
* Function Memory type Cacheability Cache hint
* ioremap() Device n/a n/a
- * ioremap_nocache() Device n/a n/a
* ioremap_cache() Normal Writeback Read allocate
* ioremap_wc() Normal Non-cacheable n/a
* ioremap_wt() Normal Non-cacheable n/a
@@ -368,13 +367,6 @@ static inline void memcpy_toio(volatile void __iomem *to, const void *from,
* - unaligned accesses are "unpredictable"
* - writes may be delayed before they hit the endpoint device
*
- * ioremap_nocache() is the same as ioremap() as there are too many device
- * drivers using this for device registers, and documentation which tells
- * people to use it for such for this to be any different. This is not a
- * safe fallback for memory-like mappings, or memory regions where the
- * compiler may generate unaligned accesses - eg, via inlining its own
- * memcpy.
- *
* All normal memory mappings have the following properties:
* - reads can be repeated with no side effects
* - repeated reads return the last value written
diff --git a/arch/arm/include/asm/switch_to.h b/arch/arm/include/asm/switch_to.h
index d3e937dcee4d..007d8fea7157 100644
--- a/arch/arm/include/asm/switch_to.h
+++ b/arch/arm/include/asm/switch_to.h
@@ -10,7 +10,7 @@
* to ensure that the maintenance completes in case we migrate to another
* CPU.
*/
-#if defined(CONFIG_PREEMPT) && defined(CONFIG_SMP) && defined(CONFIG_CPU_V7)
+#if defined(CONFIG_PREEMPTION) && defined(CONFIG_SMP) && defined(CONFIG_CPU_V7)
#define __complete_pending_tlbi() dsb(ish)
#else
#define __complete_pending_tlbi()
diff --git a/arch/arm/include/asm/vdso/gettimeofday.h b/arch/arm/include/asm/vdso/gettimeofday.h
index 0ad2429c324f..fe6e1f65932d 100644
--- a/arch/arm/include/asm/vdso/gettimeofday.h
+++ b/arch/arm/include/asm/vdso/gettimeofday.h
@@ -52,6 +52,24 @@ static __always_inline long clock_gettime_fallback(
return ret;
}
+static __always_inline long clock_gettime32_fallback(
+ clockid_t _clkid,
+ struct old_timespec32 *_ts)
+{
+ register struct old_timespec32 *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_clock_gettime;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
static __always_inline int clock_getres_fallback(
clockid_t _clkid,
struct __kernel_timespec *_ts)
@@ -70,6 +88,24 @@ static __always_inline int clock_getres_fallback(
return ret;
}
+static __always_inline int clock_getres32_fallback(
+ clockid_t _clkid,
+ struct old_timespec32 *_ts)
+{
+ register struct old_timespec32 *ts asm("r1") = _ts;
+ register clockid_t clkid asm("r0") = _clkid;
+ register long ret asm ("r0");
+ register long nr asm("r7") = __NR_clock_getres;
+
+ asm volatile(
+ " swi #0\n"
+ : "=r" (ret)
+ : "r" (clkid), "r" (ts), "r" (nr)
+ : "memory");
+
+ return ret;
+}
+
static __always_inline u64 __arch_get_hw_counter(int clock_mode)
{
#ifdef CONFIG_ARM_ARCH_TIMER
diff --git a/arch/arm/include/asm/vdso/vsyscall.h b/arch/arm/include/asm/vdso/vsyscall.h
index c4166f317071..cff87d8d30da 100644
--- a/arch/arm/include/asm/vdso/vsyscall.h
+++ b/arch/arm/include/asm/vdso/vsyscall.h
@@ -34,9 +34,9 @@ struct vdso_data *__arm_get_k_vdso_data(void)
#define __arch_get_k_vdso_data __arm_get_k_vdso_data
static __always_inline
-int __arm_update_vdso_data(void)
+bool __arm_update_vdso_data(void)
{
- return !cntvct_ok;
+ return cntvct_ok;
}
#define __arch_update_vdso_data __arm_update_vdso_data
diff --git a/arch/arm/include/asm/vmalloc.h b/arch/arm/include/asm/vmalloc.h
new file mode 100644
index 000000000000..a9b3718b8600
--- /dev/null
+++ b/arch/arm/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_ARM_VMALLOC_H
+#define _ASM_ARM_VMALLOC_H
+
+#endif /* _ASM_ARM_VMALLOC_H */
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 8b679e2ca3c3..89e5d864e923 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -53,8 +53,8 @@ obj-$(CONFIG_HAVE_ARM_SCU) += smp_scu.o
obj-$(CONFIG_HAVE_ARM_TWD) += smp_twd.o
obj-$(CONFIG_ARM_ARCH_TIMER) += arch_timer.o
obj-$(CONFIG_FUNCTION_TRACER) += entry-ftrace.o
-obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o insn.o
-obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o insn.o
+obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o insn.o patch.o
+obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o insn.o patch.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o insn.o patch.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
# Main staffs in KPROBES are in arch/arm/probes/ .
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 858d4e541532..77f54830554c 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -211,7 +211,7 @@ __irq_svc:
svc_entry
irq_handler
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
ldr r8, [tsk, #TI_PREEMPT] @ get preempt count
ldr r0, [tsk, #TI_FLAGS] @ get flags
teq r8, #0 @ if preempt count != 0
@@ -226,7 +226,7 @@ ENDPROC(__irq_svc)
.ltorg
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
svc_preempt:
mov r8, lr
1: bl preempt_schedule_irq @ irq en/disable is done inside
diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index bda949fd84e8..2a5ff69c28e6 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -22,6 +22,7 @@
#include <asm/ftrace.h>
#include <asm/insn.h>
#include <asm/set_memory.h>
+#include <asm/patch.h>
#ifdef CONFIG_THUMB2_KERNEL
#define NOP 0xf85deb04 /* pop.w {lr} */
@@ -35,9 +36,7 @@ static int __ftrace_modify_code(void *data)
{
int *command = data;
- set_kernel_text_rw();
ftrace_modify_all_code(*command);
- set_kernel_text_ro();
return 0;
}
@@ -59,13 +58,11 @@ static unsigned long adjust_address(struct dyn_ftrace *rec, unsigned long addr)
int ftrace_arch_code_modify_prepare(void)
{
- set_all_modules_text_rw();
return 0;
}
int ftrace_arch_code_modify_post_process(void)
{
- set_all_modules_text_ro();
/* Make sure any TLB misses during machine stop are cleared. */
flush_tlb_all();
return 0;
@@ -97,10 +94,7 @@ static int ftrace_modify_code(unsigned long pc, unsigned long old,
return -EINVAL;
}
- if (probe_kernel_write((void *)pc, &new, MCOUNT_INSN_SIZE))
- return -EPERM;
-
- flush_icache_range(pc, pc + MCOUNT_INSN_SIZE);
+ __patch_text((void *)pc, new);
return 0;
}
diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S
index ae5020302de4..6607fa817bba 100644
--- a/arch/arm/kernel/hyp-stub.S
+++ b/arch/arm/kernel/hyp-stub.S
@@ -146,10 +146,9 @@ ARM_BE8(orr r7, r7, #(1 << 25)) @ HSCTLR.EE
#if !defined(ZIMAGE) && defined(CONFIG_ARM_ARCH_TIMER)
@ make CNTP_* and CNTPCT accessible from PL1
mrc p15, 0, r7, c0, c1, 1 @ ID_PFR1
- lsr r7, #16
- and r7, #0xf
- cmp r7, #1
- bne 1f
+ ubfx r7, r7, #16, #4
+ teq r7, #0
+ beq 1f
mrc p15, 4, r7, c14, c1, 0 @ CNTHCTL
orr r7, r7, #3 @ PL1PCEN | PL1PCTEN
mcr p15, 4, r7, c14, c1, 0 @ CNTHCTL
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index cea1c27c29cb..46e478fb5ea2 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -226,8 +226,8 @@ void release_thread(struct task_struct *dead_task)
asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
int
-copy_thread(unsigned long clone_flags, unsigned long stack_start,
- unsigned long stk_sz, struct task_struct *p)
+copy_thread_tls(unsigned long clone_flags, unsigned long stack_start,
+ unsigned long stk_sz, struct task_struct *p, unsigned long tls)
{
struct thread_info *thread = task_thread_info(p);
struct pt_regs *childregs = task_pt_regs(p);
@@ -261,7 +261,7 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
clear_ptrace_hw_breakpoint(p);
if (clone_flags & CLONE_SETTLS)
- thread->tp_value[0] = childregs->ARM_r3;
+ thread->tp_value[0] = tls;
thread->tp_value[1] = get_tpuser();
thread_notify(THREAD_NOTIFY_COPY, thread);
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index d0a464e317ea..d8e18cdd96d3 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -1164,8 +1164,6 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
#endif
#endif
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index c053abd1fb53..abb7dd7e656f 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -248,6 +248,8 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
#ifdef CONFIG_PREEMPT
#define S_PREEMPT " PREEMPT"
+#elif defined(CONFIG_PREEMPT_RT)
+#define S_PREEMPT " PREEMPT_RT"
#else
#define S_PREEMPT ""
#endif
diff --git a/arch/arm/mach-bcm/bcm2711.c b/arch/arm/mach-bcm/bcm2711.c
index dbe296798647..fa0300d8c79d 100644
--- a/arch/arm/mach-bcm/bcm2711.c
+++ b/arch/arm/mach-bcm/bcm2711.c
@@ -13,6 +13,7 @@ static const char * const bcm2711_compat[] = {
#ifdef CONFIG_ARCH_MULTI_V7
"brcm,bcm2711",
#endif
+ NULL
};
DT_MACHINE_START(BCM2711, "BCM2711")
diff --git a/arch/arm/mach-bcm/platsmp.c b/arch/arm/mach-bcm/platsmp.c
index 21400b3fa5fe..c9db2a9006d9 100644
--- a/arch/arm/mach-bcm/platsmp.c
+++ b/arch/arm/mach-bcm/platsmp.c
@@ -105,7 +105,7 @@ static int nsp_write_lut(unsigned int cpu)
if (!secondary_boot_addr)
return -EINVAL;
- sku_rom_lut = ioremap_nocache((phys_addr_t)secondary_boot_addr,
+ sku_rom_lut = ioremap((phys_addr_t)secondary_boot_addr,
sizeof(phys_addr_t));
if (!sku_rom_lut) {
pr_warn("unable to ioremap SKU-ROM LUT register for cpu %u\n", cpu);
@@ -174,7 +174,7 @@ static int kona_boot_secondary(unsigned int cpu, struct task_struct *idle)
if (!secondary_boot_addr)
return -EINVAL;
- boot_reg = ioremap_nocache((phys_addr_t)secondary_boot_addr,
+ boot_reg = ioremap((phys_addr_t)secondary_boot_addr,
sizeof(phys_addr_t));
if (!boot_reg) {
pr_err("unable to map boot register for cpu %u\n", cpu_id);
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index dd427bd2768c..02b180ad7245 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -9,6 +9,7 @@ menuconfig ARCH_DAVINCI
select PM_GENERIC_DOMAINS if PM
select PM_GENERIC_DOMAINS_OF if PM && OF
select REGMAP_MMIO
+ select RESET_CONTROLLER
select HAVE_IDE
select PINCTRL_SINGLE
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 9d87d4e440ea..040c949414fa 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -823,6 +823,17 @@ static int davinci_phy_fixup(struct phy_device *phydev)
#define HAS_NAND IS_ENABLED(CONFIG_MTD_NAND_DAVINCI)
+#define GPIO_nVBUS_DRV 160
+
+static struct gpiod_lookup_table dm644evm_usb_gpio_table = {
+ .dev_id = "musb-davinci",
+ .table = {
+ GPIO_LOOKUP("davinci_gpio", GPIO_nVBUS_DRV, NULL,
+ GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
static __init void davinci_evm_init(void)
{
int ret;
@@ -875,6 +886,7 @@ static __init void davinci_evm_init(void)
dm644x_init_asp();
/* irlml6401 switches over 1A, in under 8 msec */
+ gpiod_add_lookup_table(&dm644evm_usb_gpio_table);
davinci_setup_usb(1000, 8);
if (IS_BUILTIN(CONFIG_PHYLIB)) {
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index 3e447d468845..e650131ee88f 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -34,7 +34,7 @@ void __iomem *davinci_sysmod_base;
void davinci_map_sysmod(void)
{
- davinci_sysmod_base = ioremap_nocache(DAVINCI_SYSTEM_MODULE_BASE,
+ davinci_sysmod_base = ioremap(DAVINCI_SYSTEM_MODULE_BASE,
0x800);
/*
* Throw a bug since a lot of board initialization code depends
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 4ef56571145b..6e7f10c8098a 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -12,6 +12,7 @@ menuconfig ARCH_EXYNOS
select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
+ select EXYNOS_IRQ_COMBINER
select COMMON_CLK_SAMSUNG
select EXYNOS_ASV
select EXYNOS_CHIPID
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index d8118031c51f..871f98342d50 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -84,7 +84,7 @@ struct device * __init imx_soc_device_init(void)
const char *ocotp_compat = NULL;
struct soc_device *soc_dev;
struct device_node *root;
- struct regmap *ocotp;
+ struct regmap *ocotp = NULL;
const char *soc_id;
u64 soc_uid = 0;
u32 val;
@@ -148,11 +148,11 @@ struct device * __init imx_soc_device_init(void)
soc_id = "i.MX6UL";
break;
case MXC_CPU_IMX6ULL:
- ocotp_compat = "fsl,imx6ul-ocotp";
+ ocotp_compat = "fsl,imx6ull-ocotp";
soc_id = "i.MX6ULL";
break;
case MXC_CPU_IMX6ULZ:
- ocotp_compat = "fsl,imx6ul-ocotp";
+ ocotp_compat = "fsl,imx6ull-ocotp";
soc_id = "i.MX6ULZ";
break;
case MXC_CPU_IMX6SLL:
@@ -175,7 +175,9 @@ struct device * __init imx_soc_device_init(void)
ocotp = syscon_regmap_lookup_by_compatible(ocotp_compat);
if (IS_ERR(ocotp))
pr_err("%s: failed to find %s regmap!\n", __func__, ocotp_compat);
+ }
+ if (!IS_ERR_OR_NULL(ocotp)) {
regmap_read(ocotp, OCOTP_UID_H, &val);
soc_uid = val;
regmap_read(ocotp, OCOTP_UID_L, &val);
diff --git a/arch/arm/mach-ixp4xx/fsg-setup.c b/arch/arm/mach-ixp4xx/fsg-setup.c
index 648932d8d7a8..507ee3878769 100644
--- a/arch/arm/mach-ixp4xx/fsg-setup.c
+++ b/arch/arm/mach-ixp4xx/fsg-setup.c
@@ -132,6 +132,22 @@ static struct platform_device fsg_leds = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
+static struct resource fsg_eth_npeb_resources[] = {
+ {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource fsg_eth_npec_resources[] = {
+ {
+ .start = IXP4XX_EthC_BASE_PHYS,
+ .end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct eth_plat_info fsg_plat_eth[] = {
{
.phy = 5,
@@ -151,12 +167,16 @@ static struct platform_device fsg_eth[] = {
.dev = {
.platform_data = fsg_plat_eth,
},
+ .num_resources = ARRAY_SIZE(fsg_eth_npeb_resources),
+ .resource = fsg_eth_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev = {
.platform_data = fsg_plat_eth + 1,
},
+ .num_resources = ARRAY_SIZE(fsg_eth_npec_resources),
+ .resource = fsg_eth_npec_resources,
}
};
diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c
index a0e0b6b7dc5c..07b50dfcc489 100644
--- a/arch/arm/mach-ixp4xx/goramo_mlr.c
+++ b/arch/arm/mach-ixp4xx/goramo_mlr.c
@@ -11,6 +11,7 @@
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/pci.h>
+#include <linux/platform_data/wan_ixp4xx_hss.h>
#include <linux/serial_8250.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -272,6 +273,22 @@ static struct platform_device device_uarts = {
/* Built-in 10/100 Ethernet MAC interfaces */
+static struct resource eth_npeb_resources[] = {
+ {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource eth_npec_resources[] = {
+ {
+ .start = IXP4XX_EthC_BASE_PHYS,
+ .end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct eth_plat_info eth_plat[] = {
{
.phy = 0,
@@ -289,10 +306,14 @@ static struct platform_device device_eth_tab[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = eth_plat,
+ .num_resources = ARRAY_SIZE(eth_npeb_resources),
+ .resource = eth_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev.platform_data = eth_plat + 1,
+ .num_resources = ARRAY_SIZE(eth_npec_resources),
+ .resource = eth_npec_resources,
}
};
@@ -405,6 +426,9 @@ static void __init gmlr_init(void)
if (hw_bits & CFG_HW_HAS_HSS1)
device_tab[devices++] = &device_hss_tab[1]; /* max index 5 */
+ hss_plat[0].timer_freq = ixp4xx_timer_freq;
+ hss_plat[1].timer_freq = ixp4xx_timer_freq;
+
gpio_request(GPIO_SCL, "SCL/clock");
gpio_request(GPIO_SDA, "SDA/data");
gpio_request(GPIO_STR, "strobe");
diff --git a/arch/arm/mach-ixp4xx/include/mach/platform.h b/arch/arm/mach-ixp4xx/include/mach/platform.h
index 342acbe20f7c..6d403fe0bf52 100644
--- a/arch/arm/mach-ixp4xx/include/mach/platform.h
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -15,6 +15,7 @@
#ifndef __ASSEMBLY__
#include <linux/reboot.h>
+#include <linux/platform_data/eth_ixp4xx.h>
#include <asm/types.h>
@@ -92,27 +93,6 @@ struct ixp4xx_pata_data {
void __iomem *cs1;
};
-#define IXP4XX_ETH_NPEA 0x00
-#define IXP4XX_ETH_NPEB 0x10
-#define IXP4XX_ETH_NPEC 0x20
-
-/* Information about built-in Ethernet MAC interfaces */
-struct eth_plat_info {
- u8 phy; /* MII PHY ID, 0 - 31 */
- u8 rxq; /* configurable, currently 0 - 31 only */
- u8 txreadyq;
- u8 hwaddr[6];
-};
-
-/* Information about built-in HSS (synchronous serial) interfaces */
-struct hss_plat_info {
- int (*set_clock)(int port, unsigned int clock_type);
- int (*open)(int port, void *pdev,
- void (*set_carrier_cb)(void *pdev, int carrier));
- void (*close)(int port, void *pdev);
- u8 txreadyq;
-};
-
/*
* Frequency of clock used for primary clocksource
*/
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 6f0f7ed18ea8..45d5b720ded6 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -187,6 +187,22 @@ static struct platform_device ixdp425_uart = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
+static struct resource ixp425_npeb_resources[] = {
+ {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource ixp425_npec_resources[] = {
+ {
+ .start = IXP4XX_EthC_BASE_PHYS,
+ .end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct eth_plat_info ixdp425_plat_eth[] = {
{
.phy = 0,
@@ -204,10 +220,14 @@ static struct platform_device ixdp425_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = ixdp425_plat_eth,
+ .num_resources = ARRAY_SIZE(ixp425_npeb_resources),
+ .resource = ixp425_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev.platform_data = ixdp425_plat_eth + 1,
+ .num_resources = ARRAY_SIZE(ixp425_npec_resources),
+ .resource = ixp425_npec_resources,
}
};
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index c142cfa8c5d6..6959ad2e3aec 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -165,6 +165,14 @@ static struct platform_device nas100d_uart = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
+static struct resource nas100d_eth_resources[] = {
+ {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct eth_plat_info nas100d_plat_eth[] = {
{
.phy = 0,
@@ -178,6 +186,8 @@ static struct platform_device nas100d_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = nas100d_plat_eth,
+ .num_resources = ARRAY_SIZE(nas100d_eth_resources),
+ .resource = nas100d_eth_resources,
}
};
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index ee1877fcfafe..a428bb918703 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -185,6 +185,14 @@ static struct platform_device nslu2_uart = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
+static struct resource nslu2_eth_resources[] = {
+ {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct eth_plat_info nslu2_plat_eth[] = {
{
.phy = 1,
@@ -198,6 +206,8 @@ static struct platform_device nslu2_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = nslu2_plat_eth,
+ .num_resources = ARRAY_SIZE(nslu2_eth_resources),
+ .resource = nslu2_eth_resources,
}
};
diff --git a/arch/arm/mach-ixp4xx/omixp-setup.c b/arch/arm/mach-ixp4xx/omixp-setup.c
index 6ed5a9aed600..8f2b8c473d7a 100644
--- a/arch/arm/mach-ixp4xx/omixp-setup.c
+++ b/arch/arm/mach-ixp4xx/omixp-setup.c
@@ -170,6 +170,22 @@ static struct platform_device mic256_leds = {
};
/* Built-in 10/100 Ethernet MAC interfaces */
+static struct resource ixp425_npeb_resources[] = {
+ {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource ixp425_npec_resources[] = {
+ {
+ .start = IXP4XX_EthC_BASE_PHYS,
+ .end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct eth_plat_info ixdp425_plat_eth[] = {
{
.phy = 0,
@@ -187,10 +203,14 @@ static struct platform_device ixdp425_eth[] = {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = ixdp425_plat_eth,
+ .num_resources = ARRAY_SIZE(ixp425_npeb_resources),
+ .resource = ixp425_npeb_resources,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev.platform_data = ixdp425_plat_eth + 1,
+ .num_resources = ARRAY_SIZE(ixp425_npec_resources),
+ .resource = ixp425_npec_resources,
},
};
diff --git a/arch/arm/mach-ixp4xx/vulcan-setup.c b/arch/arm/mach-ixp4xx/vulcan-setup.c
index d2ebb7c675a8..e506d2af98ad 100644
--- a/arch/arm/mach-ixp4xx/vulcan-setup.c
+++ b/arch/arm/mach-ixp4xx/vulcan-setup.c
@@ -124,6 +124,22 @@ static struct platform_device vulcan_uart = {
.num_resources = ARRAY_SIZE(vulcan_uart_resources),
};
+static struct resource vulcan_npeb_resources[] = {
+ {
+ .start = IXP4XX_EthB_BASE_PHYS,
+ .end = IXP4XX_EthB_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct resource vulcan_npec_resources[] = {
+ {
+ .start = IXP4XX_EthC_BASE_PHYS,
+ .end = IXP4XX_EthC_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
static struct eth_plat_info vulcan_plat_eth[] = {
[0] = {
.phy = 0,
@@ -144,6 +160,8 @@ static struct platform_device vulcan_eth[] = {
.dev = {
.platform_data = &vulcan_plat_eth[0],
},
+ .num_resources = ARRAY_SIZE(vulcan_npeb_resources),
+ .resource = vulcan_npeb_resources,
},
[1] = {
.name = "ixp4xx_eth",
@@ -151,6 +169,8 @@ static struct platform_device vulcan_eth[] = {
.dev = {
.platform_data = &vulcan_plat_eth[1],
},
+ .num_resources = ARRAY_SIZE(vulcan_npec_resources),
+ .resource = vulcan_npec_resources,
},
};
diff --git a/arch/arm/mach-mmp/pxa168.h b/arch/arm/mach-mmp/pxa168.h
index 0331c58b07a2..dff651b9f252 100644
--- a/arch/arm/mach-mmp/pxa168.h
+++ b/arch/arm/mach-mmp/pxa168.h
@@ -17,9 +17,9 @@ extern void pxa168_clear_keypad_wakeup(void);
#include <linux/platform_data/keypad-pxa27x.h>
#include <linux/pxa168_eth.h>
#include <linux/platform_data/mv_usb.h>
+#include <linux/soc/mmp/cputype.h>
#include "devices.h"
-#include "cputype.h"
extern struct pxa_device_desc pxa168_device_uart1;
extern struct pxa_device_desc pxa168_device_uart2;
diff --git a/arch/arm/mach-mmp/time.c b/arch/arm/mach-mmp/time.c
index 110dcb3314d1..c65cfc1ad99b 100644
--- a/arch/arm/mach-mmp/time.c
+++ b/arch/arm/mach-mmp/time.c
@@ -207,7 +207,7 @@ static int __init mmp_dt_init_timer(struct device_node *np)
ret = clk_prepare_enable(clk);
if (ret)
return ret;
- rate = clk_get_rate(clk) / 2;
+ rate = clk_get_rate(clk);
} else if (cpu_is_pj4()) {
rate = 6500000;
} else {
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index ad08d470a2ca..dca7d06c0b93 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -95,6 +95,7 @@ config ARCH_OMAP2PLUS
bool
select ARCH_HAS_BANDGAP
select ARCH_HAS_HOLES_MEMORYMODEL
+ select ARCH_HAS_RESET_CONTROLLER
select ARCH_OMAP
select CLKSRC_MMIO
select GENERIC_IRQ_CHIP
@@ -105,11 +106,11 @@ config ARCH_OMAP2PLUS
select OMAP_DM_TIMER
select OMAP_GPMC
select PINCTRL
+ select RESET_CONTROLLER
select SOC_BUS
select TI_SYSC
select OMAP_IRQCHIP
select CLKSRC_TI_32K
- select ARCH_HAS_RESET_CONTROLLER
help
Systems based on OMAP2, OMAP3, OMAP4 or OMAP5
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index ca52271de5a8..e95c224ffc4d 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -306,10 +306,14 @@ static void __init dra7x_evm_mmc_quirk(void)
static struct clockdomain *ti_sysc_find_one_clockdomain(struct clk *clk)
{
+ struct clk_hw *hw = __clk_get_hw(clk);
struct clockdomain *clkdm = NULL;
struct clk_hw_omap *hwclk;
- hwclk = to_clk_hw_omap(__clk_get_hw(clk));
+ hwclk = to_clk_hw_omap(hw);
+ if (!omap2_clk_is_hw_omap(hw))
+ return NULL;
+
if (hwclk && hwclk->clkdm_name)
clkdm = clkdm_lookup(hwclk->clkdm_name);
diff --git a/arch/arm/mach-pxa/colibri-pxa320.c b/arch/arm/mach-pxa/colibri-pxa320.c
index eba917d69c0a..35dd3adb7712 100644
--- a/arch/arm/mach-pxa/colibri-pxa320.c
+++ b/arch/arm/mach-pxa/colibri-pxa320.c
@@ -11,9 +11,9 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
+#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
-#include <linux/usb/gpio_vbus.h>
#include <asm/mach-types.h>
#include <linux/sizes.h>
@@ -144,17 +144,18 @@ static inline void __init colibri_pxa320_init_eth(void) {}
#endif /* CONFIG_AX88796 */
#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
-static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
- .gpio_vbus = mfp_to_gpio(MFP_PIN_GPIO96),
- .gpio_pullup = -1,
+static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", MFP_PIN_GPIO96,
+ "vbus", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device colibri_pxa320_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &colibri_pxa320_gpio_vbus_info,
- },
};
static void colibri_pxa320_udc_command(int cmd)
@@ -173,6 +174,7 @@ static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
static void __init colibri_pxa320_init_udc(void)
{
pxa_set_udc_info(&colibri_pxa320_udc_info);
+ gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
platform_device_register(&colibri_pxa320_gpio_vbus);
}
#else
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index 91f7c3e40065..f37c44b6139d 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk-provider.h>
+#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
@@ -22,7 +23,6 @@
#include <linux/mfd/t7l66xb.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/memblock.h>
#include <video/w100fb.h>
@@ -51,18 +51,20 @@ void __init eseries_fixup(struct tag *tags, char **cmdline)
memblock_add(0xa0000000, SZ_64M);
}
-struct gpio_vbus_mach_info e7xx_udc_info = {
- .gpio_vbus = GPIO_E7XX_USB_DISC,
- .gpio_pullup = GPIO_E7XX_USB_PULLUP,
- .gpio_pullup_inverted = 1
+static struct gpiod_lookup_table e7xx_gpio_vbus_gpiod_table __maybe_unused = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", GPIO_E7XX_USB_DISC,
+ "vbus", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio-pxa", GPIO_E7XX_USB_PULLUP,
+ "pullup", GPIO_ACTIVE_LOW),
+ { },
+ },
};
static struct platform_device e7xx_gpio_vbus __maybe_unused = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &e7xx_udc_info,
- },
};
struct pxaficp_platform_data e7xx_ficp_platform_data = {
@@ -165,6 +167,7 @@ static void __init e330_init(void)
pxa_set_stuart_info(NULL);
eseries_register_clks();
eseries_get_tmio_gpios();
+ gpiod_add_lookup_table(&e7xx_gpio_vbus_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(e330_devices));
}
@@ -216,6 +219,7 @@ static void __init e350_init(void)
pxa_set_stuart_info(NULL);
eseries_register_clks();
eseries_get_tmio_gpios();
+ gpiod_add_lookup_table(&e7xx_gpio_vbus_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(e350_devices));
}
@@ -340,6 +344,7 @@ static void __init e400_init(void)
eseries_register_clks();
eseries_get_tmio_gpios();
pxa_set_fb_info(NULL, &e400_pxafb_mach_info);
+ gpiod_add_lookup_table(&e7xx_gpio_vbus_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(e400_devices));
}
@@ -534,6 +539,7 @@ static void __init e740_init(void)
clk_add_alias("CLK_CK48M", e740_t7l66xb_device.name,
"UDCCLK", &pxa25x_device_udc.dev),
eseries_get_tmio_gpios();
+ gpiod_add_lookup_table(&e7xx_gpio_vbus_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(e740_devices));
pxa_set_ac97_info(NULL);
pxa_set_ficp_info(&e7xx_ficp_platform_data);
@@ -733,6 +739,7 @@ static void __init e750_init(void)
clk_add_alias("CLK_CK3P6MI", e750_tc6393xb_device.name,
"GPIO11_CLK", NULL),
eseries_get_tmio_gpios();
+ gpiod_add_lookup_table(&e7xx_gpio_vbus_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(e750_devices));
pxa_set_ac97_info(NULL);
pxa_set_ficp_info(&e7xx_ficp_platform_data);
@@ -888,18 +895,20 @@ static struct platform_device e800_fb_device = {
/* --------------------------- UDC definitions --------------------------- */
-static struct gpio_vbus_mach_info e800_udc_info = {
- .gpio_vbus = GPIO_E800_USB_DISC,
- .gpio_pullup = GPIO_E800_USB_PULLUP,
- .gpio_pullup_inverted = 1
+static struct gpiod_lookup_table e800_gpio_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", GPIO_E800_USB_DISC,
+ "vbus", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio-pxa", GPIO_E800_USB_PULLUP,
+ "pullup", GPIO_ACTIVE_LOW),
+ { },
+ },
};
static struct platform_device e800_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &e800_udc_info,
- },
};
@@ -949,6 +958,7 @@ static void __init e800_init(void)
clk_add_alias("CLK_CK3P6MI", e800_tc6393xb_device.name,
"GPIO11_CLK", NULL),
eseries_get_tmio_gpios();
+ gpiod_add_lookup_table(&e800_gpio_vbus_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(e800_devices));
pxa_set_ac97_info(NULL);
}
diff --git a/arch/arm/mach-pxa/gumstix.c b/arch/arm/mach-pxa/gumstix.c
index 4b4589cf431f..49dd618b10f7 100644
--- a/arch/arm/mach-pxa/gumstix.c
+++ b/arch/arm/mach-pxa/gumstix.c
@@ -20,10 +20,10 @@
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/err.h>
#include <linux/clk.h>
-#include <linux/usb/gpio_vbus.h>
#include <asm/setup.h>
#include <asm/memory.h>
@@ -101,21 +101,25 @@ static void __init gumstix_mmc_init(void)
#endif
#ifdef CONFIG_USB_PXA25X
-static struct gpio_vbus_mach_info gumstix_udc_info = {
- .gpio_vbus = GPIO_GUMSTIX_USB_GPIOn,
- .gpio_pullup = GPIO_GUMSTIX_USB_GPIOx,
+static struct gpiod_lookup_table gumstix_gpio_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", GPIO_GUMSTIX_USB_GPIOn,
+ "vbus", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio-pxa", GPIO_GUMSTIX_USB_GPIOx,
+ "pullup", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device gumstix_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &gumstix_udc_info,
- },
};
static void __init gumstix_udc_init(void)
{
+ gpiod_add_lookup_table(&gumstix_gpio_vbus_gpiod_table);
platform_device_register(&gumstix_gpio_vbus);
}
#else
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index 311268d186ab..238a751a8797 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -34,7 +34,6 @@
#include <linux/spi/ads7846.h>
#include <linux/spi/spi.h>
#include <linux/spi/pxa2xx_spi.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/platform_data/i2c-pxa.h>
#include <mach/hardware.h>
@@ -578,18 +577,24 @@ static struct pwm_lookup hx4700_pwm_lookup[] = {
* USB "Transceiver"
*/
-static struct gpio_vbus_mach_info gpio_vbus_info = {
- .gpio_pullup = GPIO76_HX4700_USBC_PUEN,
- .gpio_vbus = GPIOD14_nUSBC_DETECT,
- .gpio_vbus_inverted = 1,
+static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ /* This GPIO is on ASIC3 */
+ GPIO_LOOKUP("asic3",
+ /* Convert to a local offset on the ASIC3 */
+ GPIOD14_nUSBC_DETECT - HX4700_ASIC3_GPIO_BASE,
+ "vbus", GPIO_ACTIVE_LOW),
+ /* This one is on the primary SOC GPIO */
+ GPIO_LOOKUP("gpio-pxa", GPIO76_HX4700_USBC_PUEN,
+ "pullup", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &gpio_vbus_info,
- },
};
static struct pxa2xx_udc_mach_info hx4700_udc_info;
@@ -883,6 +888,7 @@ static void __init hx4700_init(void)
pxa_set_stuart_info(NULL);
gpiod_add_lookup_table(&bq24022_gpiod_table);
+ gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
platform_add_devices(devices, ARRAY_SIZE(devices));
pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index e1a394ac3eea..5d0591f93f4d 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -27,7 +27,6 @@
#include <linux/regulator/fixed.h>
#include <linux/regulator/gpio-regulator.h>
#include <linux/regulator/machine.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/platform_data/i2c-pxa.h>
#include <mach/hardware.h>
@@ -506,9 +505,20 @@ static struct resource gpio_vbus_resource = {
.end = IRQ_MAGICIAN_VBUS,
};
-static struct gpio_vbus_mach_info gpio_vbus_info = {
- .gpio_pullup = GPIO27_MAGICIAN_USBC_PUEN,
- .gpio_vbus = EGPIO_MAGICIAN_CABLE_VBUS,
+static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ /*
+ * EGPIO on register 4 index 1, the second EGPIO chip
+ * starts at register 4 so this will be at index 1 on that
+ * chip.
+ */
+ GPIO_LOOKUP("htc-egpio-1", 1,
+ "vbus", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio-pxa", GPIO27_MAGICIAN_USBC_PUEN,
+ "pullup", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device gpio_vbus = {
@@ -516,9 +526,6 @@ static struct platform_device gpio_vbus = {
.id = -1,
.num_resources = 1,
.resource = &gpio_vbus_resource,
- .dev = {
- .platform_data = &gpio_vbus_info,
- },
};
/*
@@ -1008,7 +1015,7 @@ static void __init magician_init(void)
pxa_set_udc_info(&magician_udc_info);
/* Check LCD type we have */
- cpld = ioremap_nocache(PXA_CS3_PHYS, 0x1000);
+ cpld = ioremap(PXA_CS3_PHYS, 0x1000);
if (cpld) {
u8 board_id = __raw_readb(cpld + 0x14);
@@ -1032,6 +1039,7 @@ static void __init magician_init(void)
ARRAY_SIZE(pwm_backlight_supply), 5000000);
gpiod_add_lookup_table(&bq24022_gpiod_table);
+ gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
platform_add_devices(ARRAY_AND_SIZE(devices));
}
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index c360023a989c..0b8bae9610f1 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -24,7 +24,6 @@
#include <linux/power_supply.h>
#include <linux/wm97xx.h>
#include <linux/mtd/physmap.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/reboot.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/max1586.h>
@@ -368,10 +367,13 @@ static struct pxa2xx_udc_mach_info mioa701_udc_info = {
.gpio_pullup = GPIO22_USB_ENABLE,
};
-struct gpio_vbus_mach_info gpio_vbus_data = {
- .gpio_vbus = GPIO13_nUSB_DETECT,
- .gpio_vbus_inverted = 1,
- .gpio_pullup = -1,
+static struct gpiod_lookup_table gpio_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", GPIO13_nUSB_DETECT,
+ "vbus", GPIO_ACTIVE_LOW),
+ { },
+ },
};
/*
@@ -677,7 +679,7 @@ MIO_SIMPLE_DEV(mioa701_led, "leds-gpio", &gpio_led_info)
MIO_SIMPLE_DEV(pxa2xx_pcm, "pxa2xx-pcm", NULL)
MIO_SIMPLE_DEV(mioa701_sound, "mioa701-wm9713", NULL)
MIO_SIMPLE_DEV(mioa701_board, "mioa701-board", NULL)
-MIO_SIMPLE_DEV(gpio_vbus, "gpio-vbus", &gpio_vbus_data);
+MIO_SIMPLE_DEV(gpio_vbus, "gpio-vbus", NULL);
static struct platform_device *devices[] __initdata = {
&mioa701_gpio_keys,
@@ -750,6 +752,7 @@ static void __init mioa701_machine_init(void)
pxa_set_ac97_info(&mioa701_ac97_info);
pm_power_off = mioa701_poweroff;
pwm_add_table(mioa701_pwm_lookup, ARRAY_SIZE(mioa701_pwm_lookup));
+ gpiod_add_lookup_table(&gpio_vbus_gpiod_table);
platform_add_devices(devices, ARRAY_SIZE(devices));
gsm_init();
diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c
index 3ad0b3915ae1..b600b63af3a6 100644
--- a/arch/arm/mach-pxa/palm27x.c
+++ b/arch/arm/mach-pxa/palm27x.c
@@ -13,10 +13,10 @@
#include <linux/pda_power.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
+#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/regulator/max1586.h>
#include <linux/platform_data/i2c-pxa.h>
@@ -159,32 +159,32 @@ void __init palm27x_lcd_init(int power, struct pxafb_mode_info *mode)
******************************************************************************/
#if defined(CONFIG_USB_PXA27X) || \
defined(CONFIG_USB_PXA27X_MODULE)
-static struct gpio_vbus_mach_info palm27x_udc_info = {
- .gpio_vbus_inverted = 1,
+
+/* The actual GPIO offsets get filled in in the palm27x_udc_init() call */
+static struct gpiod_lookup_table palm27x_udc_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", 0,
+ "vbus", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio-pxa", 0,
+ "pullup", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device palm27x_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &palm27x_udc_info,
- },
};
void __init palm27x_udc_init(int vbus, int pullup, int vbus_inverted)
{
- palm27x_udc_info.gpio_vbus = vbus;
- palm27x_udc_info.gpio_pullup = pullup;
-
- palm27x_udc_info.gpio_vbus_inverted = vbus_inverted;
-
- if (!gpio_request(pullup, "USB Pullup")) {
- gpio_direction_output(pullup,
- palm27x_udc_info.gpio_vbus_inverted);
- gpio_free(pullup);
- } else
- return;
+ palm27x_udc_gpiod_table.table[0].chip_hwnum = vbus;
+ palm27x_udc_gpiod_table.table[1].chip_hwnum = pullup;
+ if (vbus_inverted)
+ palm27x_udc_gpiod_table.table[0].flags = GPIO_ACTIVE_LOW;
+ gpiod_add_lookup_table(&palm27x_udc_gpiod_table);
platform_device_register(&palm27x_gpio_vbus);
}
#endif
diff --git a/arch/arm/mach-pxa/palmt5.c b/arch/arm/mach-pxa/palmt5.c
index 902403367786..7c7cbb4e677e 100644
--- a/arch/arm/mach-pxa/palmt5.c
+++ b/arch/arm/mach-pxa/palmt5.c
@@ -23,7 +23,6 @@
#include <linux/gpio.h>
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
-#include <linux/usb/gpio_vbus.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c
index f52bd155e825..fda9deaaae02 100644
--- a/arch/arm/mach-pxa/palmtc.c
+++ b/arch/arm/mach-pxa/palmtc.c
@@ -23,7 +23,6 @@
#include <linux/power_supply.h>
#include <linux/gpio_keys.h>
#include <linux/mtd/physmap.h>
-#include <linux/usb/gpio_vbus.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -319,22 +318,25 @@ static inline void palmtc_mkp_init(void) {}
* UDC
******************************************************************************/
#if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE)
-static struct gpio_vbus_mach_info palmtc_udc_info = {
- .gpio_vbus = GPIO_NR_PALMTC_USB_DETECT_N,
- .gpio_vbus_inverted = 1,
- .gpio_pullup = GPIO_NR_PALMTC_USB_POWER,
+static struct gpiod_lookup_table palmtc_udc_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_DETECT_N,
+ "vbus", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_POWER,
+ "pullup", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device palmtc_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &palmtc_udc_info,
- },
};
static void __init palmtc_udc_init(void)
{
+ gpiod_add_lookup_table(&palmtc_udc_gpiod_table);
platform_device_register(&palmtc_gpio_vbus);
};
#else
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
index a92b9665f425..7171014fd311 100644
--- a/arch/arm/mach-pxa/palmte2.c
+++ b/arch/arm/mach-pxa/palmte2.c
@@ -23,7 +23,6 @@
#include <linux/gpio.h>
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
-#include <linux/usb/gpio_vbus.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -201,18 +200,20 @@ static struct pxaficp_platform_data palmte2_ficp_platform_data = {
/******************************************************************************
* UDC
******************************************************************************/
-static struct gpio_vbus_mach_info palmte2_udc_info = {
- .gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
- .gpio_vbus_inverted = 1,
- .gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
+static struct gpiod_lookup_table palmte2_udc_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_USB_DETECT_N,
+ "vbus", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_USB_PULLUP,
+ "pullup", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device palmte2_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &palmte2_udc_info,
- },
};
/******************************************************************************
@@ -368,6 +369,7 @@ static void __init palmte2_init(void)
pxa_set_ficp_info(&palmte2_ficp_platform_data);
pwm_add_table(palmte2_pwm_lookup, ARRAY_SIZE(palmte2_pwm_lookup));
+ gpiod_add_lookup_table(&palmte2_udc_gpiod_table);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
index 926593ecf1c9..07332c92c9f7 100644
--- a/arch/arm/mach-pxa/palmtx.c
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -23,7 +23,6 @@
#include <linux/gpio.h>
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/mtd/platnand.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
index 77fe2e367324..4df443943579 100644
--- a/arch/arm/mach-pxa/palmz72.c
+++ b/arch/arm/mach-pxa/palmz72.c
@@ -25,7 +25,6 @@
#include <linux/gpio.h>
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/platform_data/i2c-gpio.h>
#include <linux/gpio/machine.h>
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 4e13893edeb9..3d2c108e911e 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -33,7 +33,6 @@
#include <linux/spi/pxa2xx_spi.h>
#include <linux/input/matrix_keypad.h>
#include <linux/platform_data/i2c-pxa.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/reboot.h>
#include <linux/memblock.h>
@@ -240,18 +239,20 @@ static struct scoop_pcmcia_config tosa_pcmcia_config = {
/*
* USB Device Controller
*/
-static struct gpio_vbus_mach_info tosa_udc_info = {
- .gpio_pullup = TOSA_GPIO_USB_PULLUP,
- .gpio_vbus = TOSA_GPIO_USB_IN,
- .gpio_vbus_inverted = 1,
+static struct gpiod_lookup_table tosa_udc_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", TOSA_GPIO_USB_IN,
+ "vbus", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("gpio-pxa", TOSA_GPIO_USB_PULLUP,
+ "pullup", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device tosa_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &tosa_udc_info,
- },
};
/*
@@ -949,6 +950,7 @@ static void __init tosa_init(void)
clk_add_alias("CLK_CK3P6MI", tc6393xb_device.name, "GPIO11_CLK", NULL);
+ gpiod_add_lookup_table(&tosa_udc_gpiod_table);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index 26a5ebc00069..14505e83479e 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -14,7 +14,6 @@
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
@@ -352,17 +351,18 @@ static inline void vpac270_uhc_init(void) {}
* USB Gadget
******************************************************************************/
#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
-static struct gpio_vbus_mach_info vpac270_gpio_vbus_info = {
- .gpio_vbus = GPIO41_VPAC270_UDC_DETECT,
- .gpio_pullup = -1,
+static struct gpiod_lookup_table vpac270_gpio_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("gpio-pxa", GPIO41_VPAC270_UDC_DETECT,
+ "vbus", GPIO_ACTIVE_HIGH),
+ { },
+ },
};
static struct platform_device vpac270_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
- .dev = {
- .platform_data = &vpac270_gpio_vbus_info,
- },
};
static void vpac270_udc_command(int cmd)
@@ -381,6 +381,7 @@ static struct pxa2xx_udc_mach_info vpac270_udc_info __initdata = {
static void __init vpac270_udc_init(void)
{
pxa_set_udc_info(&vpac270_udc_info);
+ gpiod_add_lookup_table(&vpac270_gpio_vbus_gpiod_table);
platform_device_register(&vpac270_gpio_vbus);
}
#else
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index 951208f168e7..829d5dbd69ee 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -13,7 +13,6 @@
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/spi/spi_gpio.h>
-#include <linux/usb/gpio_vbus.h>
#include <linux/platform_data/s3c-hsotg.h>
#include <asm/mach-types.h>
@@ -124,15 +123,16 @@ static struct s3c2410_hcd_info smartq_usb_host_info = {
.enable_oc = smartq_usb_host_enableoc,
};
-static struct gpio_vbus_mach_info smartq_usb_otg_vbus_pdata = {
- .gpio_vbus = S3C64XX_GPL(9),
- .gpio_pullup = -1,
- .gpio_vbus_inverted = true,
+static struct gpiod_lookup_table smartq_usb_otg_vbus_gpiod_table = {
+ .dev_id = "gpio-vbus",
+ .table = {
+ GPIO_LOOKUP("GPL", 9, "vbus", GPIO_ACTIVE_LOW),
+ { },
+ },
};
static struct platform_device smartq_usb_otg_vbus_dev = {
.name = "gpio-vbus",
- .dev.platform_data = &smartq_usb_otg_vbus_pdata,
};
static struct pwm_lookup smartq_pwm_lookup[] = {
@@ -418,6 +418,7 @@ void __init smartq_machine_init(void)
pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
gpiod_add_lookup_table(&smartq_lcd_control_gpiod_table);
+ gpiod_add_lookup_table(&smartq_usb_otg_vbus_gpiod_table);
platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
gpiod_add_lookup_table(&smartq_audio_gpios);
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 96330ef25641..e771ce70e132 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -189,7 +189,7 @@ static void apmu_init_cpu(struct resource *res, int cpu, int bit)
if ((cpu >= ARRAY_SIZE(apmu_cpus)) || apmu_cpus[cpu].iomem)
return;
- apmu_cpus[cpu].iomem = ioremap_nocache(res->start, resource_size(res));
+ apmu_cpus[cpu].iomem = ioremap(res->start, resource_size(res));
apmu_cpus[cpu].bit = bit;
pr_debug("apmu ioremap %d %d %pr\n", cpu, bit, res);
diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c b/arch/arm/mach-shmobile/pm-rcar-gen2.c
index e84599dd96f1..672081405a7e 100644
--- a/arch/arm/mach-shmobile/pm-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c
@@ -103,7 +103,7 @@ map:
iounmap(p);
/* setup reset vectors */
- p = ioremap_nocache(RST, 0x63);
+ p = ioremap(RST, 0x63);
bar = phys_to_sbar(res.start);
if (has_a15) {
writel_relaxed(bar, p + CA15BAR);
diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index 787d039b5a07..f760c27c9907 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -28,7 +28,7 @@ static void __init r8a7740_meram_workaround(void)
{
void __iomem *reg;
- reg = ioremap_nocache(MEBUFCNTR, 4);
+ reg = ioremap(MEBUFCNTR, 4);
if (reg) {
iowrite32(0x01600164, reg);
iounmap(reg);
@@ -37,9 +37,9 @@ static void __init r8a7740_meram_workaround(void)
static void __init r8a7740_init_irq_of(void)
{
- void __iomem *intc_prio_base = ioremap_nocache(0xe6900010, 0x10);
- void __iomem *intc_msk_base = ioremap_nocache(0xe6900040, 0x10);
- void __iomem *pfc_inta_ctrl = ioremap_nocache(0xe605807c, 0x4);
+ void __iomem *intc_prio_base = ioremap(0xe6900010, 0x10);
+ void __iomem *intc_msk_base = ioremap(0xe6900040, 0x10);
+ void __iomem *pfc_inta_ctrl = ioremap(0xe605807c, 0x4);
irqchip_init();
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index ce51794f64c7..2bc93f391bcf 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -22,7 +22,7 @@
static void __init r8a7778_init_irq_dt(void)
{
- void __iomem *base = ioremap_nocache(0xfe700000, 0x00100000);
+ void __iomem *base = ioremap(0xfe700000, 0x00100000);
BUG_ON(!base);
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index a79fa3b0c8ed..a1694d977ec9 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -201,7 +201,7 @@ static unsigned long pin_highz_conf[] = {
};
/* Pin control settings */
-static struct pinctrl_map __initdata u300_pinmux_map[] = {
+static const struct pinctrl_map u300_pinmux_map[] = {
/* anonymous maps for chip power and EMIFs */
PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-u300", NULL, "power"),
PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-u300", NULL, "emif0"),
diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c
index 354e0e7025ae..1da11bdb1dfb 100644
--- a/arch/arm/mach-vexpress/spc.c
+++ b/arch/arm/mach-vexpress/spc.c
@@ -551,8 +551,9 @@ static struct clk *ve_spc_clk_register(struct device *cpu_dev)
static int __init ve_spc_clk_init(void)
{
- int cpu;
+ int cpu, cluster;
struct clk *clk;
+ bool init_opp_table[MAX_CLUSTERS] = { false };
if (!info)
return 0; /* Continue only if SPC is initialised */
@@ -578,8 +579,17 @@ static int __init ve_spc_clk_init(void)
continue;
}
+ cluster = topology_physical_package_id(cpu_dev->id);
+ if (init_opp_table[cluster])
+ continue;
+
if (ve_init_opp_table(cpu_dev))
pr_warn("failed to initialise cpu%d opp table\n", cpu);
+ else if (dev_pm_opp_set_sharing_cpus(cpu_dev,
+ topology_core_cpumask(cpu_dev->id)))
+ pr_warn("failed to mark OPPs shared for cpu%d\n", cpu);
+ else
+ init_opp_table[cluster] = true;
}
platform_device_register_simple("vexpress-spc-cpufreq", -1, NULL, 0);
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 0ee8fc4b4672..dc8f152f3556 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -135,13 +135,13 @@ flush_levels:
and r1, r1, #7 @ mask of the bits for current cache only
cmp r1, #2 @ see what cache we have at this level
blt skip @ skip if no cache, or just i-cache
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
save_and_disable_irqs_notrace r9 @ make cssr&csidr read atomic
#endif
mcr p15, 2, r10, c0, c0, 0 @ select current cache level in cssr
isb @ isb to sych the new cssr&csidr
mrc p15, 1, r1, c0, c0, 0 @ read the new csidr
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
restore_irqs_notrace r9
#endif
and r2, r1, #7 @ extract the length of the cache lines
diff --git a/arch/arm/mm/cache-v7m.S b/arch/arm/mm/cache-v7m.S
index a0035c426ce6..1bc3a0a50753 100644
--- a/arch/arm/mm/cache-v7m.S
+++ b/arch/arm/mm/cache-v7m.S
@@ -183,13 +183,13 @@ flush_levels:
and r1, r1, #7 @ mask of the bits for current cache only
cmp r1, #2 @ see what cache we have at this level
blt skip @ skip if no cache, or just i-cache
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
save_and_disable_irqs_notrace r9 @ make cssr&csidr read atomic
#endif
write_csselr r10, r1 @ set current cache level
isb @ isb to sych the new cssr&csidr
read_ccsidr r1 @ read the new csidr
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
restore_irqs_notrace r9
#endif
and r2, r1, #7 @ extract the length of the cache lines
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 97dc386e3cb8..cc29869d12a3 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -1260,12 +1260,9 @@ static inline void emit_push_r64(const s8 src[], struct jit_ctx *ctx)
static void build_prologue(struct jit_ctx *ctx)
{
- const s8 r0 = bpf2a32[BPF_REG_0][1];
- const s8 r2 = bpf2a32[BPF_REG_1][1];
- const s8 r3 = bpf2a32[BPF_REG_1][0];
- const s8 r4 = bpf2a32[BPF_REG_6][1];
- const s8 fplo = bpf2a32[BPF_REG_FP][1];
- const s8 fphi = bpf2a32[BPF_REG_FP][0];
+ const s8 arm_r0 = bpf2a32[BPF_REG_0][1];
+ const s8 *bpf_r1 = bpf2a32[BPF_REG_1];
+ const s8 *bpf_fp = bpf2a32[BPF_REG_FP];
const s8 *tcc = bpf2a32[TCALL_CNT];
/* Save callee saved registers. */
@@ -1278,8 +1275,10 @@ static void build_prologue(struct jit_ctx *ctx)
emit(ARM_PUSH(CALLEE_PUSH_MASK), ctx);
emit(ARM_MOV_R(ARM_FP, ARM_SP), ctx);
#endif
- /* Save frame pointer for later */
- emit(ARM_SUB_I(ARM_IP, ARM_SP, SCRATCH_SIZE), ctx);
+ /* mov r3, #0 */
+ /* sub r2, sp, #SCRATCH_SIZE */
+ emit(ARM_MOV_I(bpf_r1[0], 0), ctx);
+ emit(ARM_SUB_I(bpf_r1[1], ARM_SP, SCRATCH_SIZE), ctx);
ctx->stack_size = imm8m(STACK_SIZE);
@@ -1287,18 +1286,15 @@ static void build_prologue(struct jit_ctx *ctx)
emit(ARM_SUB_I(ARM_SP, ARM_SP, ctx->stack_size), ctx);
/* Set up BPF prog stack base register */
- emit_a32_mov_r(fplo, ARM_IP, ctx);
- emit_a32_mov_i(fphi, 0, ctx);
+ emit_a32_mov_r64(true, bpf_fp, bpf_r1, ctx);
- /* mov r4, 0 */
- emit(ARM_MOV_I(r4, 0), ctx);
+ /* Initialize Tail Count */
+ emit(ARM_MOV_I(bpf_r1[1], 0), ctx);
+ emit_a32_mov_r64(true, tcc, bpf_r1, ctx);
/* Move BPF_CTX to BPF_R1 */
- emit(ARM_MOV_R(r3, r4), ctx);
- emit(ARM_MOV_R(r2, r0), ctx);
- /* Initialize Tail Count */
- emit(ARM_STR_I(r4, ARM_FP, EBPF_SCRATCH_TO_ARM_FP(tcc[0])), ctx);
- emit(ARM_STR_I(r4, ARM_FP, EBPF_SCRATCH_TO_ARM_FP(tcc[1])), ctx);
+ emit(ARM_MOV_R(bpf_r1[1], arm_r0), ctx);
+
/* end of prologue */
}
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index 6da7dc4d79cc..4d1cf74a2caa 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -449,3 +449,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
435 common clone3 sys_clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile
index 0fda344beb0b..1babb392e70a 100644
--- a/arch/arm/vdso/Makefile
+++ b/arch/arm/vdso/Makefile
@@ -14,7 +14,7 @@ targets := $(obj-vdso) vdso.so vdso.so.dbg vdso.so.raw vdso.lds
obj-vdso := $(addprefix $(obj)/, $(obj-vdso))
ccflags-y := -fPIC -fno-common -fno-builtin -fno-stack-protector
-ccflags-y += -DDISABLE_BRANCH_PROFILING
+ccflags-y += -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO32
ldflags-$(CONFIG_CPU_ENDIAN_BE8) := --be8
ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b1b4476ddb83..de238b59d9eb 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -34,32 +34,32 @@ config ARM64
select ARCH_HAS_TEARDOWN_DMA_OPS if IOMMU_SUPPORT
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_HAVE_NMI_SAFE_CMPXCHG
- select ARCH_INLINE_READ_LOCK if !PREEMPT
- select ARCH_INLINE_READ_LOCK_BH if !PREEMPT
- select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPT
- select ARCH_INLINE_READ_LOCK_IRQSAVE if !PREEMPT
- select ARCH_INLINE_READ_UNLOCK if !PREEMPT
- select ARCH_INLINE_READ_UNLOCK_BH if !PREEMPT
- select ARCH_INLINE_READ_UNLOCK_IRQ if !PREEMPT
- select ARCH_INLINE_READ_UNLOCK_IRQRESTORE if !PREEMPT
- select ARCH_INLINE_WRITE_LOCK if !PREEMPT
- select ARCH_INLINE_WRITE_LOCK_BH if !PREEMPT
- select ARCH_INLINE_WRITE_LOCK_IRQ if !PREEMPT
- select ARCH_INLINE_WRITE_LOCK_IRQSAVE if !PREEMPT
- select ARCH_INLINE_WRITE_UNLOCK if !PREEMPT
- select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPT
- select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPT
- select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPT
- select ARCH_INLINE_SPIN_TRYLOCK if !PREEMPT
- select ARCH_INLINE_SPIN_TRYLOCK_BH if !PREEMPT
- select ARCH_INLINE_SPIN_LOCK if !PREEMPT
- select ARCH_INLINE_SPIN_LOCK_BH if !PREEMPT
- select ARCH_INLINE_SPIN_LOCK_IRQ if !PREEMPT
- select ARCH_INLINE_SPIN_LOCK_IRQSAVE if !PREEMPT
- select ARCH_INLINE_SPIN_UNLOCK if !PREEMPT
- select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPT
- select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPT
- select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPT
+ select ARCH_INLINE_READ_LOCK if !PREEMPTION
+ select ARCH_INLINE_READ_LOCK_BH if !PREEMPTION
+ select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPTION
+ select ARCH_INLINE_READ_LOCK_IRQSAVE if !PREEMPTION
+ select ARCH_INLINE_READ_UNLOCK if !PREEMPTION
+ select ARCH_INLINE_READ_UNLOCK_BH if !PREEMPTION
+ select ARCH_INLINE_READ_UNLOCK_IRQ if !PREEMPTION
+ select ARCH_INLINE_READ_UNLOCK_IRQRESTORE if !PREEMPTION
+ select ARCH_INLINE_WRITE_LOCK if !PREEMPTION
+ select ARCH_INLINE_WRITE_LOCK_BH if !PREEMPTION
+ select ARCH_INLINE_WRITE_LOCK_IRQ if !PREEMPTION
+ select ARCH_INLINE_WRITE_LOCK_IRQSAVE if !PREEMPTION
+ select ARCH_INLINE_WRITE_UNLOCK if !PREEMPTION
+ select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPTION
+ select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPTION
+ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPTION
+ select ARCH_INLINE_SPIN_TRYLOCK if !PREEMPTION
+ select ARCH_INLINE_SPIN_TRYLOCK_BH if !PREEMPTION
+ select ARCH_INLINE_SPIN_LOCK if !PREEMPTION
+ select ARCH_INLINE_SPIN_LOCK_BH if !PREEMPTION
+ select ARCH_INLINE_SPIN_LOCK_IRQ if !PREEMPTION
+ select ARCH_INLINE_SPIN_LOCK_IRQSAVE if !PREEMPTION
+ select ARCH_INLINE_SPIN_UNLOCK if !PREEMPTION
+ select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPTION
+ select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPTION
+ select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION
select ARCH_KEEP_MEMBLOCK
select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_USE_QUEUED_RWLOCKS
@@ -69,6 +69,7 @@ config ARM64
select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG)
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION if COMPAT
+ select ARCH_WANT_DEFAULT_BPF_JIT
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
select ARCH_WANT_FRAME_POINTERS
select ARCH_WANT_HUGE_PMD_SHARE if ARM64_4K_PAGES || (ARM64_16K_PAGES && !ARM64_VA_BITS_36)
@@ -81,7 +82,7 @@ config ARM64
select ARM_GIC_V3
select ARM_GIC_V3_ITS if PCI
select ARM_PSCI_FW
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
select CPU_PM if (SUSPEND || CPU_IDLE)
@@ -138,6 +139,7 @@ config ARM64
select HAVE_CMPXCHG_DOUBLE
select HAVE_CMPXCHG_LOCAL
select HAVE_CONTEXT_TRACKING
+ select HAVE_COPY_THREAD_TLS
select HAVE_DEBUG_BUGVERBOSE
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
@@ -161,6 +163,7 @@ config ARM64
select HAVE_PERF_USER_STACK_DUMP
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_FUNCTION_ARG_ACCESS_API
+ select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_RCU_TABLE_FREE
select HAVE_RSEQ
select HAVE_STACKPROTECTOR
@@ -301,6 +304,9 @@ config ARCH_SUPPORTS_UPROBES
config ARCH_PROC_KCORE_TEXT
def_bool y
+config BROKEN_GAS_INST
+ def_bool !$(as-instr,1:\n.inst 0\n.rept . - 1b\n\nnop\n.endr\n)
+
config KASAN_SHADOW_OFFSET
hex
depends on KASAN
@@ -514,9 +520,13 @@ config ARM64_ERRATUM_1418040
If unsure, say Y.
+config ARM64_WORKAROUND_SPECULATIVE_AT_VHE
+ bool
+
config ARM64_ERRATUM_1165522
bool "Cortex-A76: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation"
default y
+ select ARM64_WORKAROUND_SPECULATIVE_AT_VHE
help
This option adds a workaround for ARM Cortex-A76 erratum 1165522.
@@ -526,6 +536,19 @@ config ARM64_ERRATUM_1165522
If unsure, say Y.
+config ARM64_ERRATUM_1530923
+ bool "Cortex-A55: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation"
+ default y
+ select ARM64_WORKAROUND_SPECULATIVE_AT_VHE
+ help
+ This option adds a workaround for ARM Cortex-A55 erratum 1530923.
+
+ Affected Cortex-A55 cores (r0p0, r0p1, r1p0, r2p0) could end-up with
+ corrupted TLBs by speculating an AT instruction during a guest
+ context switch.
+
+ If unsure, say Y.
+
config ARM64_ERRATUM_1286807
bool "Cortex-A76: Modification of the translation table for a virtual address might lead to read-after-read ordering violation"
default y
@@ -542,9 +565,13 @@ config ARM64_ERRATUM_1286807
invalidated has been observed by other observers. The
workaround repeats the TLBI+DSB operation.
+config ARM64_WORKAROUND_SPECULATIVE_AT_NVHE
+ bool
+
config ARM64_ERRATUM_1319367
bool "Cortex-A57/A72: Speculative AT instruction using out-of-context translation regime could cause subsequent request to generate an incorrect translation"
default y
+ select ARM64_WORKAROUND_SPECULATIVE_AT_NVHE
help
This option adds work arounds for ARM Cortex-A57 erratum 1319537
and A72 erratum 1319367
@@ -1363,6 +1390,11 @@ config ARM64_PAN
instruction if the cpu does not implement the feature.
config ARM64_LSE_ATOMICS
+ bool
+ default ARM64_USE_LSE_ATOMICS
+ depends on $(as-instr,.arch_extension lse)
+
+config ARM64_USE_LSE_ATOMICS
bool "Atomic instructions"
depends on JUMP_LABEL
default y
@@ -1484,6 +1516,30 @@ config ARM64_PTR_AUTH
endmenu
+menu "ARMv8.5 architectural features"
+
+config ARM64_E0PD
+ bool "Enable support for E0PD"
+ default y
+ help
+ E0PD (part of the ARMv8.5 extensions) allows us to ensure
+ that EL0 accesses made via TTBR1 always fault in constant time,
+ providing similar benefits to KASLR as those provided by KPTI, but
+ with lower overhead and without disrupting legitimate access to
+ kernel memory such as SPE.
+
+ This option enables E0PD for TTBR1 where available.
+
+config ARCH_RANDOM
+ bool "Enable support for random number generation"
+ default y
+ help
+ Random number generation (part of the ARMv8.5 Extensions)
+ provides a high bandwidth, cryptographically secure
+ hardware random number generator.
+
+endmenu
+
config ARM64_SVE
bool "ARM Scalable Vector Extension support"
default y
@@ -1544,7 +1600,7 @@ config ARM64_MODULE_PLTS
config ARM64_PSEUDO_NMI
bool "Support for NMI-like interrupts"
- select CONFIG_ARM_GIC_V3
+ select ARM_GIC_V3
help
Adds support for mimicking Non-Maskable Interrupts through the use of
GIC interrupt priority. This support requires version 3 or later of
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 1fbe24d4fdb6..dca1a97751ab 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -30,11 +30,8 @@ LDFLAGS_vmlinux += --fix-cortex-a53-843419
endif
endif
-# Check for binutils support for specific extensions
-lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1)
-
-ifeq ($(CONFIG_ARM64_LSE_ATOMICS), y)
- ifeq ($(lseinstr),)
+ifeq ($(CONFIG_ARM64_USE_LSE_ATOMICS), y)
+ ifneq ($(CONFIG_ARM64_LSE_ATOMICS), y)
$(warning LSE atomics not supported by binutils)
endif
endif
@@ -45,19 +42,15 @@ cc_has_k_constraint := $(call try-run,echo \
return 0; \
}' | $(CC) -S -x c -o "$$TMP" -,,-DCONFIG_CC_HAS_K_CONSTRAINT=1)
-ifeq ($(CONFIG_ARM64), y)
-brokengasinst := $(call as-instr,1:\n.inst 0\n.rept . - 1b\n\nnop\n.endr\n,,-DCONFIG_BROKEN_GAS_INST=1)
-
- ifneq ($(brokengasinst),)
+ifeq ($(CONFIG_BROKEN_GAS_INST),y)
$(warning Detected assembler with broken .inst; disassembly will be unreliable)
- endif
endif
-KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) $(brokengasinst) \
+KBUILD_CFLAGS += -mgeneral-regs-only \
$(compat_vdso) $(cc_has_k_constraint)
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
KBUILD_CFLAGS += $(call cc-disable-warning, psabi)
-KBUILD_AFLAGS += $(lseinstr) $(brokengasinst) $(compat_vdso)
+KBUILD_AFLAGS += $(compat_vdso)
KBUILD_CFLAGS += $(call cc-option,-mabi=lp64)
KBUILD_AFLAGS += $(call cc-option,-mabi=lp64)
diff --git a/arch/arm64/boot/Makefile b/arch/arm64/boot/Makefile
index 1f012c506434..cd3414898d10 100644
--- a/arch/arm64/boot/Makefile
+++ b/arch/arm64/boot/Makefile
@@ -16,7 +16,7 @@
OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
-targets := Image Image.gz
+targets := Image Image.bz2 Image.gz Image.lz4 Image.lzma Image.lzo
$(obj)/Image: vmlinux FORCE
$(call if_changed,objcopy)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
index 96ab0227e82d..121e6cc4849b 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino-emmc.dts
@@ -15,7 +15,7 @@
pinctrl-names = "default";
pinctrl-0 = <&mmc2_pins>;
vmmc-supply = <&reg_dcdc1>;
- vqmmc-supply = <&reg_dcdc1>;
+ vqmmc-supply = <&reg_eldo1>;
bus-width = <8>;
non-removable;
cap-mmc-hw-reset;
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
index 01a9a52edae4..393c1948a495 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-olinuxino.dts
@@ -140,7 +140,7 @@
&mmc1 {
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
- vmmc-supply = <&reg_aldo2>;
+ vmmc-supply = <&reg_dcdc1>;
vqmmc-supply = <&reg_dldo4>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
index 144a2c19ac02..d1fc9c2055f4 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -61,10 +61,10 @@
pmu {
compatible = "arm,armv8-pmuv3";
- interrupts = <0 120 8>,
- <0 121 8>,
- <0 122 8>,
- <0 123 8>;
+ interrupts = <0 170 4>,
+ <0 171 4>,
+ <0 172 4>,
+ <0 173 4>;
interrupt-affinity = <&cpu0>,
<&cpu1>,
<&cpu2>,
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
index 5bd07469766b..a8bb3fa9fec9 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
@@ -46,25 +46,47 @@
};
gpio-keys {
- compatible = "gpio-keys-polled";
- poll-interval = <100>;
+ compatible = "gpio-keys";
key1 {
label = "A";
linux,code = <BTN_0>;
gpios = <&gpio GPIOH_6 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <34 IRQ_TYPE_EDGE_BOTH>;
};
key2 {
label = "B";
linux,code = <BTN_1>;
gpios = <&gpio GPIOH_7 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <35 IRQ_TYPE_EDGE_BOTH>;
};
key3 {
label = "C";
linux,code = <BTN_2>;
gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <2 IRQ_TYPE_EDGE_BOTH>;
+ };
+
+ mic_mute {
+ label = "MicMute";
+ linux,code = <SW_MUTE_DEVICE>;
+ linux,input-type = <EV_SW>;
+ gpios = <&gpio_ao GPIOE_2 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <99 IRQ_TYPE_EDGE_BOTH>;
+ };
+
+ power_key {
+ label = "PowerKey";
+ linux,code = <KEY_POWER>;
+ gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_LOW>;
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <3 IRQ_TYPE_EDGE_BOTH>;
};
};
@@ -569,6 +591,8 @@
bluetooth {
compatible = "brcm,bcm43438-bt";
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <95 IRQ_TYPE_LEVEL_HIGH>;
shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
max-speed = <2000000>;
clocks = <&wifi32k>;
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index 8e8a77eb596a..a6f9b7784e8f 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -88,7 +88,7 @@
reboot {
compatible ="syscon-reboot";
- regmap = <&dcfg>;
+ regmap = <&rst>;
offset = <0xb0>;
mask = <0x02>;
};
@@ -175,7 +175,13 @@
dcfg: syscon@1e00000 {
compatible = "fsl,ls1028a-dcfg", "syscon";
reg = <0x0 0x1e00000 0x0 0x10000>;
- big-endian;
+ little-endian;
+ };
+
+ rst: syscon@1e60000 {
+ compatible = "syscon";
+ reg = <0x0 0x1e60000 0x0 0x10000>;
+ little-endian;
};
scfg: syscon@1fc0000 {
@@ -584,7 +590,7 @@
0x00010004 0x0000003d
0x00010005 0x00000045
0x00010006 0x0000004d
- 0x00010007 0x00000045
+ 0x00010007 0x00000055
0x00010008 0x0000005e
0x00010009 0x00000066
0x0001000a 0x0000006e
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 6edbdfe2d0d7..3d95b66a2d71 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -740,7 +740,7 @@
reg = <0x30bd0000 0x10000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MM_CLK_SDMA1_ROOT>,
- <&clk IMX8MM_CLK_SDMA1_ROOT>;
+ <&clk IMX8MM_CLK_AHB>;
clock-names = "ipg", "ahb";
#dma-cells = <3>;
fsl,sdma-ram-script-name = "imx/sdma/sdma-imx7d.bin";
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
index 2a759dff9f87..596bc65f475c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -421,7 +421,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_imu>;
interrupt-parent = <&gpio3>;
- interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+ interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
vdd-supply = <&reg_3v3_p>;
vddio-supply = <&reg_3v3_p>;
};
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
index 94090c6fb946..d43e1299c8ef 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi
@@ -60,10 +60,10 @@
pmu {
compatible = "arm,armv8-pmuv3";
- interrupts = <0 120 8>,
- <0 121 8>,
- <0 122 8>,
- <0 123 8>;
+ interrupts = <0 170 4>,
+ <0 171 4>,
+ <0 172 4>,
+ <0 173 4>;
interrupt-affinity = <&cpu0>,
<&cpu1>,
<&cpu2>,
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-a1.dts b/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
index 76b49f573101..16f1656d5203 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
@@ -49,7 +49,8 @@
ir-receiver {
compatible = "gpio-ir-receiver";
- gpios = <&gpio2 RK_PA2 GPIO_ACTIVE_HIGH>;
+ gpios = <&gpio2 RK_PA2 GPIO_ACTIVE_LOW>;
+ linux,rc-map-name = "rc-beelink-gs1";
};
};
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 6a83ba2aea3e..b2f667307f82 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -442,6 +442,7 @@ CONFIG_ROCKCHIP_THERMAL=m
CONFIG_RCAR_THERMAL=y
CONFIG_RCAR_GEN3_THERMAL=y
CONFIG_ARMADA_THERMAL=y
+CONFIG_BCM2711_THERMAL=m
CONFIG_BCM2835_THERMAL=m
CONFIG_BRCMSTB_THERMAL=m
CONFIG_EXYNOS_THERMAL=y
diff --git a/arch/arm64/crypto/aes-ce-ccm-core.S b/arch/arm64/crypto/aes-ce-ccm-core.S
index 9add9bbc48d8..99a028e298ed 100644
--- a/arch/arm64/crypto/aes-ce-ccm-core.S
+++ b/arch/arm64/crypto/aes-ce-ccm-core.S
@@ -15,7 +15,7 @@
* void ce_aes_ccm_auth_data(u8 mac[], u8 const in[], u32 abytes,
* u32 *macp, u8 const rk[], u32 rounds);
*/
-ENTRY(ce_aes_ccm_auth_data)
+SYM_FUNC_START(ce_aes_ccm_auth_data)
ldr w8, [x3] /* leftover from prev round? */
ld1 {v0.16b}, [x0] /* load mac */
cbz w8, 1f
@@ -81,13 +81,13 @@ ENTRY(ce_aes_ccm_auth_data)
st1 {v0.16b}, [x0]
10: str w8, [x3]
ret
-ENDPROC(ce_aes_ccm_auth_data)
+SYM_FUNC_END(ce_aes_ccm_auth_data)
/*
* void ce_aes_ccm_final(u8 mac[], u8 const ctr[], u8 const rk[],
* u32 rounds);
*/
-ENTRY(ce_aes_ccm_final)
+SYM_FUNC_START(ce_aes_ccm_final)
ld1 {v3.4s}, [x2], #16 /* load first round key */
ld1 {v0.16b}, [x0] /* load mac */
cmp w3, #12 /* which key size? */
@@ -121,7 +121,7 @@ ENTRY(ce_aes_ccm_final)
eor v0.16b, v0.16b, v1.16b /* en-/decrypt the mac */
st1 {v0.16b}, [x0] /* store result */
ret
-ENDPROC(ce_aes_ccm_final)
+SYM_FUNC_END(ce_aes_ccm_final)
.macro aes_ccm_do_crypt,enc
ldr x8, [x6, #8] /* load lower ctr */
@@ -212,10 +212,10 @@ CPU_LE( rev x8, x8 )
* u8 const rk[], u32 rounds, u8 mac[],
* u8 ctr[]);
*/
-ENTRY(ce_aes_ccm_encrypt)
+SYM_FUNC_START(ce_aes_ccm_encrypt)
aes_ccm_do_crypt 1
-ENDPROC(ce_aes_ccm_encrypt)
+SYM_FUNC_END(ce_aes_ccm_encrypt)
-ENTRY(ce_aes_ccm_decrypt)
+SYM_FUNC_START(ce_aes_ccm_decrypt)
aes_ccm_do_crypt 0
-ENDPROC(ce_aes_ccm_decrypt)
+SYM_FUNC_END(ce_aes_ccm_decrypt)
diff --git a/arch/arm64/crypto/aes-ce-ccm-glue.c b/arch/arm64/crypto/aes-ce-ccm-glue.c
index 541cf9165748..f6d19b0dc893 100644
--- a/arch/arm64/crypto/aes-ce-ccm-glue.c
+++ b/arch/arm64/crypto/aes-ce-ccm-glue.c
@@ -47,14 +47,8 @@ static int ccm_setkey(struct crypto_aead *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_ctx *ctx = crypto_aead_ctx(tfm);
- int ret;
- ret = ce_aes_expandkey(ctx, in_key, key_len);
- if (!ret)
- return 0;
-
- tfm->base.crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
+ return ce_aes_expandkey(ctx, in_key, key_len);
}
static int ccm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
diff --git a/arch/arm64/crypto/aes-ce-core.S b/arch/arm64/crypto/aes-ce-core.S
index 76a30fe4ba8b..e52e13eb8fdb 100644
--- a/arch/arm64/crypto/aes-ce-core.S
+++ b/arch/arm64/crypto/aes-ce-core.S
@@ -8,7 +8,7 @@
.arch armv8-a+crypto
-ENTRY(__aes_ce_encrypt)
+SYM_FUNC_START(__aes_ce_encrypt)
sub w3, w3, #2
ld1 {v0.16b}, [x2]
ld1 {v1.4s}, [x0], #16
@@ -34,9 +34,9 @@ ENTRY(__aes_ce_encrypt)
eor v0.16b, v0.16b, v3.16b
st1 {v0.16b}, [x1]
ret
-ENDPROC(__aes_ce_encrypt)
+SYM_FUNC_END(__aes_ce_encrypt)
-ENTRY(__aes_ce_decrypt)
+SYM_FUNC_START(__aes_ce_decrypt)
sub w3, w3, #2
ld1 {v0.16b}, [x2]
ld1 {v1.4s}, [x0], #16
@@ -62,23 +62,23 @@ ENTRY(__aes_ce_decrypt)
eor v0.16b, v0.16b, v3.16b
st1 {v0.16b}, [x1]
ret
-ENDPROC(__aes_ce_decrypt)
+SYM_FUNC_END(__aes_ce_decrypt)
/*
* __aes_ce_sub() - use the aese instruction to perform the AES sbox
* substitution on each byte in 'input'
*/
-ENTRY(__aes_ce_sub)
+SYM_FUNC_START(__aes_ce_sub)
dup v1.4s, w0
movi v0.16b, #0
aese v0.16b, v1.16b
umov w0, v0.s[0]
ret
-ENDPROC(__aes_ce_sub)
+SYM_FUNC_END(__aes_ce_sub)
-ENTRY(__aes_ce_invert)
+SYM_FUNC_START(__aes_ce_invert)
ld1 {v0.4s}, [x1]
aesimc v1.16b, v0.16b
st1 {v1.4s}, [x0]
ret
-ENDPROC(__aes_ce_invert)
+SYM_FUNC_END(__aes_ce_invert)
diff --git a/arch/arm64/crypto/aes-ce-glue.c b/arch/arm64/crypto/aes-ce-glue.c
index 6d085dc56c51..56a5f6f0b0c1 100644
--- a/arch/arm64/crypto/aes-ce-glue.c
+++ b/arch/arm64/crypto/aes-ce-glue.c
@@ -143,14 +143,8 @@ int ce_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_ctx *ctx = crypto_tfm_ctx(tfm);
- int ret;
- ret = ce_aes_expandkey(ctx, in_key, key_len);
- if (!ret)
- return 0;
-
- tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
+ return ce_aes_expandkey(ctx, in_key, key_len);
}
EXPORT_SYMBOL(ce_aes_setkey);
diff --git a/arch/arm64/crypto/aes-ce.S b/arch/arm64/crypto/aes-ce.S
index c132c49c89a8..45062553467f 100644
--- a/arch/arm64/crypto/aes-ce.S
+++ b/arch/arm64/crypto/aes-ce.S
@@ -9,8 +9,8 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
-#define AES_ENTRY(func) ENTRY(ce_ ## func)
-#define AES_ENDPROC(func) ENDPROC(ce_ ## func)
+#define AES_ENTRY(func) SYM_FUNC_START(ce_ ## func)
+#define AES_ENDPROC(func) SYM_FUNC_END(ce_ ## func)
.arch armv8-a+crypto
diff --git a/arch/arm64/crypto/aes-cipher-core.S b/arch/arm64/crypto/aes-cipher-core.S
index 423d0aebc570..c9d6955f8404 100644
--- a/arch/arm64/crypto/aes-cipher-core.S
+++ b/arch/arm64/crypto/aes-cipher-core.S
@@ -122,11 +122,11 @@ CPU_BE( rev w7, w7 )
ret
.endm
-ENTRY(__aes_arm64_encrypt)
+SYM_FUNC_START(__aes_arm64_encrypt)
do_crypt fround, crypto_ft_tab, crypto_ft_tab + 1, 2
-ENDPROC(__aes_arm64_encrypt)
+SYM_FUNC_END(__aes_arm64_encrypt)
.align 5
-ENTRY(__aes_arm64_decrypt)
+SYM_FUNC_START(__aes_arm64_decrypt)
do_crypt iround, crypto_it_tab, crypto_aes_inv_sbox, 0
-ENDPROC(__aes_arm64_decrypt)
+SYM_FUNC_END(__aes_arm64_decrypt)
diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c
index aa57dc639f77..ed5409c6abf4 100644
--- a/arch/arm64/crypto/aes-glue.c
+++ b/arch/arm64/crypto/aes-glue.c
@@ -132,13 +132,8 @@ static int skcipher_aes_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
- int ret;
-
- ret = aes_expandkey(ctx, in_key, key_len);
- if (ret)
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return ret;
+ return aes_expandkey(ctx, in_key, key_len);
}
static int __maybe_unused xts_set_key(struct crypto_skcipher *tfm,
@@ -155,11 +150,7 @@ static int __maybe_unused xts_set_key(struct crypto_skcipher *tfm,
if (!ret)
ret = aes_expandkey(&ctx->key2, &in_key[key_len / 2],
key_len / 2);
- if (!ret)
- return 0;
-
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
+ return ret;
}
static int __maybe_unused essiv_cbc_set_key(struct crypto_skcipher *tfm,
@@ -173,19 +164,12 @@ static int __maybe_unused essiv_cbc_set_key(struct crypto_skcipher *tfm,
ret = aes_expandkey(&ctx->key1, in_key, key_len);
if (ret)
- goto out;
+ return ret;
desc->tfm = ctx->hash;
crypto_shash_digest(desc, in_key, key_len, digest);
- ret = aes_expandkey(&ctx->key2, digest, sizeof(digest));
- if (ret)
- goto out;
-
- return 0;
-out:
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
+ return aes_expandkey(&ctx->key2, digest, sizeof(digest));
}
static int __maybe_unused ecb_encrypt(struct skcipher_request *req)
@@ -791,13 +775,8 @@ static int cbcmac_setkey(struct crypto_shash *tfm, const u8 *in_key,
unsigned int key_len)
{
struct mac_tfm_ctx *ctx = crypto_shash_ctx(tfm);
- int err;
- err = aes_expandkey(&ctx->key, in_key, key_len);
- if (err)
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
-
- return err;
+ return aes_expandkey(&ctx->key, in_key, key_len);
}
static void cmac_gf128_mul_by_x(be128 *y, const be128 *x)
diff --git a/arch/arm64/crypto/aes-modes.S b/arch/arm64/crypto/aes-modes.S
index 131618389f1f..8a2faa42b57e 100644
--- a/arch/arm64/crypto/aes-modes.S
+++ b/arch/arm64/crypto/aes-modes.S
@@ -22,26 +22,26 @@
#define ST5(x...) x
#endif
-aes_encrypt_block4x:
+SYM_FUNC_START_LOCAL(aes_encrypt_block4x)
encrypt_block4x v0, v1, v2, v3, w3, x2, x8, w7
ret
-ENDPROC(aes_encrypt_block4x)
+SYM_FUNC_END(aes_encrypt_block4x)
-aes_decrypt_block4x:
+SYM_FUNC_START_LOCAL(aes_decrypt_block4x)
decrypt_block4x v0, v1, v2, v3, w3, x2, x8, w7
ret
-ENDPROC(aes_decrypt_block4x)
+SYM_FUNC_END(aes_decrypt_block4x)
#if MAX_STRIDE == 5
-aes_encrypt_block5x:
+SYM_FUNC_START_LOCAL(aes_encrypt_block5x)
encrypt_block5x v0, v1, v2, v3, v4, w3, x2, x8, w7
ret
-ENDPROC(aes_encrypt_block5x)
+SYM_FUNC_END(aes_encrypt_block5x)
-aes_decrypt_block5x:
+SYM_FUNC_START_LOCAL(aes_decrypt_block5x)
decrypt_block5x v0, v1, v2, v3, v4, w3, x2, x8, w7
ret
-ENDPROC(aes_decrypt_block5x)
+SYM_FUNC_END(aes_decrypt_block5x)
#endif
/*
diff --git a/arch/arm64/crypto/aes-neon.S b/arch/arm64/crypto/aes-neon.S
index 22d9b110cf78..247d34ddaab0 100644
--- a/arch/arm64/crypto/aes-neon.S
+++ b/arch/arm64/crypto/aes-neon.S
@@ -8,8 +8,8 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
-#define AES_ENTRY(func) ENTRY(neon_ ## func)
-#define AES_ENDPROC(func) ENDPROC(neon_ ## func)
+#define AES_ENTRY(func) SYM_FUNC_START(neon_ ## func)
+#define AES_ENDPROC(func) SYM_FUNC_END(neon_ ## func)
xtsmask .req v7
cbciv .req v7
diff --git a/arch/arm64/crypto/aes-neonbs-core.S b/arch/arm64/crypto/aes-neonbs-core.S
index 65982039fa36..b357164379f6 100644
--- a/arch/arm64/crypto/aes-neonbs-core.S
+++ b/arch/arm64/crypto/aes-neonbs-core.S
@@ -380,7 +380,7 @@ ISRM0: .octa 0x0306090c00070a0d01040b0e0205080f
/*
* void aesbs_convert_key(u8 out[], u32 const rk[], int rounds)
*/
-ENTRY(aesbs_convert_key)
+SYM_FUNC_START(aesbs_convert_key)
ld1 {v7.4s}, [x1], #16 // load round 0 key
ld1 {v17.4s}, [x1], #16 // load round 1 key
@@ -425,10 +425,10 @@ ENTRY(aesbs_convert_key)
eor v17.16b, v17.16b, v7.16b
str q17, [x0]
ret
-ENDPROC(aesbs_convert_key)
+SYM_FUNC_END(aesbs_convert_key)
.align 4
-aesbs_encrypt8:
+SYM_FUNC_START_LOCAL(aesbs_encrypt8)
ldr q9, [bskey], #16 // round 0 key
ldr q8, M0SR
ldr q24, SR
@@ -488,10 +488,10 @@ aesbs_encrypt8:
eor v2.16b, v2.16b, v12.16b
eor v5.16b, v5.16b, v12.16b
ret
-ENDPROC(aesbs_encrypt8)
+SYM_FUNC_END(aesbs_encrypt8)
.align 4
-aesbs_decrypt8:
+SYM_FUNC_START_LOCAL(aesbs_decrypt8)
lsl x9, rounds, #7
add bskey, bskey, x9
@@ -553,7 +553,7 @@ aesbs_decrypt8:
eor v3.16b, v3.16b, v12.16b
eor v5.16b, v5.16b, v12.16b
ret
-ENDPROC(aesbs_decrypt8)
+SYM_FUNC_END(aesbs_decrypt8)
/*
* aesbs_ecb_encrypt(u8 out[], u8 const in[], u8 const rk[], int rounds,
@@ -621,21 +621,21 @@ ENDPROC(aesbs_decrypt8)
.endm
.align 4
-ENTRY(aesbs_ecb_encrypt)
+SYM_FUNC_START(aesbs_ecb_encrypt)
__ecb_crypt aesbs_encrypt8, v0, v1, v4, v6, v3, v7, v2, v5
-ENDPROC(aesbs_ecb_encrypt)
+SYM_FUNC_END(aesbs_ecb_encrypt)
.align 4
-ENTRY(aesbs_ecb_decrypt)
+SYM_FUNC_START(aesbs_ecb_decrypt)
__ecb_crypt aesbs_decrypt8, v0, v1, v6, v4, v2, v7, v3, v5
-ENDPROC(aesbs_ecb_decrypt)
+SYM_FUNC_END(aesbs_ecb_decrypt)
/*
* aesbs_cbc_decrypt(u8 out[], u8 const in[], u8 const rk[], int rounds,
* int blocks, u8 iv[])
*/
.align 4
-ENTRY(aesbs_cbc_decrypt)
+SYM_FUNC_START(aesbs_cbc_decrypt)
frame_push 6
mov x19, x0
@@ -720,7 +720,7 @@ ENTRY(aesbs_cbc_decrypt)
2: frame_pop
ret
-ENDPROC(aesbs_cbc_decrypt)
+SYM_FUNC_END(aesbs_cbc_decrypt)
.macro next_tweak, out, in, const, tmp
sshr \tmp\().2d, \in\().2d, #63
@@ -736,7 +736,7 @@ ENDPROC(aesbs_cbc_decrypt)
* aesbs_xts_decrypt(u8 out[], u8 const in[], u8 const rk[], int rounds,
* int blocks, u8 iv[])
*/
-__xts_crypt8:
+SYM_FUNC_START_LOCAL(__xts_crypt8)
mov x6, #1
lsl x6, x6, x23
subs w23, w23, #8
@@ -789,7 +789,7 @@ __xts_crypt8:
0: mov bskey, x21
mov rounds, x22
br x7
-ENDPROC(__xts_crypt8)
+SYM_FUNC_END(__xts_crypt8)
.macro __xts_crypt, do8, o0, o1, o2, o3, o4, o5, o6, o7
frame_push 6, 64
@@ -854,13 +854,13 @@ ENDPROC(__xts_crypt8)
ret
.endm
-ENTRY(aesbs_xts_encrypt)
+SYM_FUNC_START(aesbs_xts_encrypt)
__xts_crypt aesbs_encrypt8, v0, v1, v4, v6, v3, v7, v2, v5
-ENDPROC(aesbs_xts_encrypt)
+SYM_FUNC_END(aesbs_xts_encrypt)
-ENTRY(aesbs_xts_decrypt)
+SYM_FUNC_START(aesbs_xts_decrypt)
__xts_crypt aesbs_decrypt8, v0, v1, v6, v4, v2, v7, v3, v5
-ENDPROC(aesbs_xts_decrypt)
+SYM_FUNC_END(aesbs_xts_decrypt)
.macro next_ctr, v
mov \v\().d[1], x8
@@ -874,7 +874,7 @@ ENDPROC(aesbs_xts_decrypt)
* aesbs_ctr_encrypt(u8 out[], u8 const in[], u8 const rk[],
* int rounds, int blocks, u8 iv[], u8 final[])
*/
-ENTRY(aesbs_ctr_encrypt)
+SYM_FUNC_START(aesbs_ctr_encrypt)
frame_push 8
mov x19, x0
@@ -1002,4 +1002,4 @@ CPU_LE( rev x8, x8 )
7: cbz x25, 8b
st1 {v5.16b}, [x25]
b 8b
-ENDPROC(aesbs_ctr_encrypt)
+SYM_FUNC_END(aesbs_ctr_encrypt)
diff --git a/arch/arm64/crypto/chacha-neon-core.S b/arch/arm64/crypto/chacha-neon-core.S
index 706c4e10e9e2..e90386a7db8e 100644
--- a/arch/arm64/crypto/chacha-neon-core.S
+++ b/arch/arm64/crypto/chacha-neon-core.S
@@ -36,7 +36,7 @@
*
* Clobbers: w3, x10, v4, v12
*/
-chacha_permute:
+SYM_FUNC_START_LOCAL(chacha_permute)
adr_l x10, ROT8
ld1 {v12.4s}, [x10]
@@ -104,9 +104,9 @@ chacha_permute:
b.ne .Ldoubleround
ret
-ENDPROC(chacha_permute)
+SYM_FUNC_END(chacha_permute)
-ENTRY(chacha_block_xor_neon)
+SYM_FUNC_START(chacha_block_xor_neon)
// x0: Input state matrix, s
// x1: 1 data block output, o
// x2: 1 data block input, i
@@ -143,9 +143,9 @@ ENTRY(chacha_block_xor_neon)
ldp x29, x30, [sp], #16
ret
-ENDPROC(chacha_block_xor_neon)
+SYM_FUNC_END(chacha_block_xor_neon)
-ENTRY(hchacha_block_neon)
+SYM_FUNC_START(hchacha_block_neon)
// x0: Input state matrix, s
// x1: output (8 32-bit words)
// w2: nrounds
@@ -163,7 +163,7 @@ ENTRY(hchacha_block_neon)
ldp x29, x30, [sp], #16
ret
-ENDPROC(hchacha_block_neon)
+SYM_FUNC_END(hchacha_block_neon)
a0 .req w12
a1 .req w13
@@ -183,7 +183,7 @@ ENDPROC(hchacha_block_neon)
a15 .req w28
.align 6
-ENTRY(chacha_4block_xor_neon)
+SYM_FUNC_START(chacha_4block_xor_neon)
frame_push 10
// x0: Input state matrix, s
@@ -845,7 +845,7 @@ CPU_BE( rev a15, a15 )
eor v31.16b, v31.16b, v3.16b
st1 {v28.16b-v31.16b}, [x1]
b .Lout
-ENDPROC(chacha_4block_xor_neon)
+SYM_FUNC_END(chacha_4block_xor_neon)
.section ".rodata", "a", %progbits
.align L1_CACHE_SHIFT
diff --git a/arch/arm64/crypto/crct10dif-ce-core.S b/arch/arm64/crypto/crct10dif-ce-core.S
index e545b42e6a46..5a95c2628fbf 100644
--- a/arch/arm64/crypto/crct10dif-ce-core.S
+++ b/arch/arm64/crypto/crct10dif-ce-core.S
@@ -131,7 +131,7 @@
tbl bd4.16b, {\bd\().16b}, perm4.16b
.endm
-__pmull_p8_core:
+SYM_FUNC_START_LOCAL(__pmull_p8_core)
.L__pmull_p8_core:
ext t4.8b, ad.8b, ad.8b, #1 // A1
ext t5.8b, ad.8b, ad.8b, #2 // A2
@@ -194,7 +194,7 @@ __pmull_p8_core:
eor t4.16b, t4.16b, t5.16b
eor t6.16b, t6.16b, t3.16b
ret
-ENDPROC(__pmull_p8_core)
+SYM_FUNC_END(__pmull_p8_core)
.macro __pmull_p8, rq, ad, bd, i
.ifnc \bd, fold_consts
@@ -488,9 +488,9 @@ CPU_LE( ext v7.16b, v7.16b, v7.16b, #8 )
//
// Assumes len >= 16.
//
-ENTRY(crc_t10dif_pmull_p8)
+SYM_FUNC_START(crc_t10dif_pmull_p8)
crc_t10dif_pmull p8
-ENDPROC(crc_t10dif_pmull_p8)
+SYM_FUNC_END(crc_t10dif_pmull_p8)
.align 5
//
@@ -498,9 +498,9 @@ ENDPROC(crc_t10dif_pmull_p8)
//
// Assumes len >= 16.
//
-ENTRY(crc_t10dif_pmull_p64)
+SYM_FUNC_START(crc_t10dif_pmull_p64)
crc_t10dif_pmull p64
-ENDPROC(crc_t10dif_pmull_p64)
+SYM_FUNC_END(crc_t10dif_pmull_p64)
.section ".rodata", "a"
.align 4
diff --git a/arch/arm64/crypto/ghash-ce-core.S b/arch/arm64/crypto/ghash-ce-core.S
index a791c4adf8e6..084c6a30b03a 100644
--- a/arch/arm64/crypto/ghash-ce-core.S
+++ b/arch/arm64/crypto/ghash-ce-core.S
@@ -350,13 +350,13 @@ CPU_LE( rev64 T1.16b, T1.16b )
* void pmull_ghash_update(int blocks, u64 dg[], const char *src,
* struct ghash_key const *k, const char *head)
*/
-ENTRY(pmull_ghash_update_p64)
+SYM_FUNC_START(pmull_ghash_update_p64)
__pmull_ghash p64
-ENDPROC(pmull_ghash_update_p64)
+SYM_FUNC_END(pmull_ghash_update_p64)
-ENTRY(pmull_ghash_update_p8)
+SYM_FUNC_START(pmull_ghash_update_p8)
__pmull_ghash p8
-ENDPROC(pmull_ghash_update_p8)
+SYM_FUNC_END(pmull_ghash_update_p8)
KS0 .req v8
KS1 .req v9
diff --git a/arch/arm64/crypto/ghash-ce-glue.c b/arch/arm64/crypto/ghash-ce-glue.c
index 522cf004ce65..22831d3b7f62 100644
--- a/arch/arm64/crypto/ghash-ce-glue.c
+++ b/arch/arm64/crypto/ghash-ce-glue.c
@@ -248,10 +248,8 @@ static int ghash_setkey(struct crypto_shash *tfm,
{
struct ghash_key *key = crypto_shash_ctx(tfm);
- if (keylen != GHASH_BLOCK_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != GHASH_BLOCK_SIZE)
return -EINVAL;
- }
return __ghash_setkey(key, inkey, keylen);
}
@@ -259,7 +257,7 @@ static int ghash_setkey(struct crypto_shash *tfm,
static struct shash_alg ghash_alg[] = {{
.base.cra_name = "ghash",
.base.cra_driver_name = "ghash-neon",
- .base.cra_priority = 100,
+ .base.cra_priority = 150,
.base.cra_blocksize = GHASH_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct ghash_key),
.base.cra_module = THIS_MODULE,
@@ -306,10 +304,8 @@ static int gcm_setkey(struct crypto_aead *tfm, const u8 *inkey,
int ret;
ret = aes_expandkey(&ctx->aes_key, inkey, keylen);
- if (ret) {
- tfm->base.crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ if (ret)
return -EINVAL;
- }
aes_encrypt(&ctx->aes_key, key, (u8[AES_BLOCK_SIZE]){});
diff --git a/arch/arm64/crypto/nh-neon-core.S b/arch/arm64/crypto/nh-neon-core.S
index e05570c38de7..51c0a534ef87 100644
--- a/arch/arm64/crypto/nh-neon-core.S
+++ b/arch/arm64/crypto/nh-neon-core.S
@@ -62,7 +62,7 @@
*
* It's guaranteed that message_len % 16 == 0.
*/
-ENTRY(nh_neon)
+SYM_FUNC_START(nh_neon)
ld1 {K0.4s,K1.4s}, [KEY], #32
movi PASS0_SUMS.2d, #0
@@ -100,4 +100,4 @@ ENTRY(nh_neon)
addp T1.2d, PASS2_SUMS.2d, PASS3_SUMS.2d
st1 {T0.16b,T1.16b}, [HASH]
ret
-ENDPROC(nh_neon)
+SYM_FUNC_END(nh_neon)
diff --git a/arch/arm64/crypto/poly1305-glue.c b/arch/arm64/crypto/poly1305-glue.c
index 83a2338a8826..e97b092f56b8 100644
--- a/arch/arm64/crypto/poly1305-glue.c
+++ b/arch/arm64/crypto/poly1305-glue.c
@@ -21,7 +21,7 @@
asmlinkage void poly1305_init_arm64(void *state, const u8 *key);
asmlinkage void poly1305_blocks(void *state, const u8 *src, u32 len, u32 hibit);
asmlinkage void poly1305_blocks_neon(void *state, const u8 *src, u32 len, u32 hibit);
-asmlinkage void poly1305_emit(void *state, __le32 *digest, const u32 *nonce);
+asmlinkage void poly1305_emit(void *state, u8 *digest, const u32 *nonce);
static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_neon);
@@ -162,9 +162,6 @@ EXPORT_SYMBOL(poly1305_update_arch);
void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
{
- __le32 digest[4];
- u64 f = 0;
-
if (unlikely(dctx->buflen)) {
dctx->buf[dctx->buflen++] = 1;
memset(dctx->buf + dctx->buflen, 0,
@@ -172,18 +169,7 @@ void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
poly1305_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
}
- poly1305_emit(&dctx->h, digest, dctx->s);
-
- /* mac = (h + s) % (2^128) */
- f = (f >> 32) + le32_to_cpu(digest[0]);
- put_unaligned_le32(f, dst);
- f = (f >> 32) + le32_to_cpu(digest[1]);
- put_unaligned_le32(f, dst + 4);
- f = (f >> 32) + le32_to_cpu(digest[2]);
- put_unaligned_le32(f, dst + 8);
- f = (f >> 32) + le32_to_cpu(digest[3]);
- put_unaligned_le32(f, dst + 12);
-
+ poly1305_emit(&dctx->h, dst, dctx->s);
*dctx = (struct poly1305_desc_ctx){};
}
EXPORT_SYMBOL(poly1305_final_arch);
diff --git a/arch/arm64/crypto/sha1-ce-core.S b/arch/arm64/crypto/sha1-ce-core.S
index c2ce1f820706..92d0d2753e81 100644
--- a/arch/arm64/crypto/sha1-ce-core.S
+++ b/arch/arm64/crypto/sha1-ce-core.S
@@ -65,7 +65,7 @@
* void sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
* int blocks)
*/
-ENTRY(sha1_ce_transform)
+SYM_FUNC_START(sha1_ce_transform)
frame_push 3
mov x19, x0
@@ -160,4 +160,4 @@ CPU_LE( rev32 v11.16b, v11.16b )
str dgb, [x19, #16]
frame_pop
ret
-ENDPROC(sha1_ce_transform)
+SYM_FUNC_END(sha1_ce_transform)
diff --git a/arch/arm64/crypto/sha1-ce-glue.c b/arch/arm64/crypto/sha1-ce-glue.c
index bdc1b6d7aff7..63c875d3314b 100644
--- a/arch/arm64/crypto/sha1-ce-glue.c
+++ b/arch/arm64/crypto/sha1-ce-glue.c
@@ -28,6 +28,13 @@ struct sha1_ce_state {
asmlinkage void sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
int blocks);
+static void __sha1_ce_transform(struct sha1_state *sst, u8 const *src,
+ int blocks)
+{
+ sha1_ce_transform(container_of(sst, struct sha1_ce_state, sst), src,
+ blocks);
+}
+
const u32 sha1_ce_offsetof_count = offsetof(struct sha1_ce_state, sst.count);
const u32 sha1_ce_offsetof_finalize = offsetof(struct sha1_ce_state, finalize);
@@ -41,8 +48,7 @@ static int sha1_ce_update(struct shash_desc *desc, const u8 *data,
sctx->finalize = 0;
kernel_neon_begin();
- sha1_base_do_update(desc, data, len,
- (sha1_block_fn *)sha1_ce_transform);
+ sha1_base_do_update(desc, data, len, __sha1_ce_transform);
kernel_neon_end();
return 0;
@@ -64,10 +70,9 @@ static int sha1_ce_finup(struct shash_desc *desc, const u8 *data,
sctx->finalize = finalize;
kernel_neon_begin();
- sha1_base_do_update(desc, data, len,
- (sha1_block_fn *)sha1_ce_transform);
+ sha1_base_do_update(desc, data, len, __sha1_ce_transform);
if (!finalize)
- sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_ce_transform);
+ sha1_base_do_finalize(desc, __sha1_ce_transform);
kernel_neon_end();
return sha1_base_finish(desc, out);
}
@@ -81,7 +86,7 @@ static int sha1_ce_final(struct shash_desc *desc, u8 *out)
sctx->finalize = 0;
kernel_neon_begin();
- sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_ce_transform);
+ sha1_base_do_finalize(desc, __sha1_ce_transform);
kernel_neon_end();
return sha1_base_finish(desc, out);
}
diff --git a/arch/arm64/crypto/sha2-ce-core.S b/arch/arm64/crypto/sha2-ce-core.S
index 6f728a419009..3f9d0f326987 100644
--- a/arch/arm64/crypto/sha2-ce-core.S
+++ b/arch/arm64/crypto/sha2-ce-core.S
@@ -75,7 +75,7 @@
* int blocks)
*/
.text
-ENTRY(sha2_ce_transform)
+SYM_FUNC_START(sha2_ce_transform)
frame_push 3
mov x19, x0
@@ -166,4 +166,4 @@ CPU_LE( rev32 v19.16b, v19.16b )
4: st1 {dgav.4s, dgbv.4s}, [x19]
frame_pop
ret
-ENDPROC(sha2_ce_transform)
+SYM_FUNC_END(sha2_ce_transform)
diff --git a/arch/arm64/crypto/sha2-ce-glue.c b/arch/arm64/crypto/sha2-ce-glue.c
index 604a01a4ede6..a8e67bafba3d 100644
--- a/arch/arm64/crypto/sha2-ce-glue.c
+++ b/arch/arm64/crypto/sha2-ce-glue.c
@@ -28,6 +28,13 @@ struct sha256_ce_state {
asmlinkage void sha2_ce_transform(struct sha256_ce_state *sst, u8 const *src,
int blocks);
+static void __sha2_ce_transform(struct sha256_state *sst, u8 const *src,
+ int blocks)
+{
+ sha2_ce_transform(container_of(sst, struct sha256_ce_state, sst), src,
+ blocks);
+}
+
const u32 sha256_ce_offsetof_count = offsetof(struct sha256_ce_state,
sst.count);
const u32 sha256_ce_offsetof_finalize = offsetof(struct sha256_ce_state,
@@ -35,6 +42,12 @@ const u32 sha256_ce_offsetof_finalize = offsetof(struct sha256_ce_state,
asmlinkage void sha256_block_data_order(u32 *digest, u8 const *src, int blocks);
+static void __sha256_block_data_order(struct sha256_state *sst, u8 const *src,
+ int blocks)
+{
+ sha256_block_data_order(sst->state, src, blocks);
+}
+
static int sha256_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
@@ -42,12 +55,11 @@ static int sha256_ce_update(struct shash_desc *desc, const u8 *data,
if (!crypto_simd_usable())
return sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_block_data_order);
+ __sha256_block_data_order);
sctx->finalize = 0;
kernel_neon_begin();
- sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha2_ce_transform);
+ sha256_base_do_update(desc, data, len, __sha2_ce_transform);
kernel_neon_end();
return 0;
@@ -62,9 +74,8 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
if (!crypto_simd_usable()) {
if (len)
sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_block_data_order);
- sha256_base_do_finalize(desc,
- (sha256_block_fn *)sha256_block_data_order);
+ __sha256_block_data_order);
+ sha256_base_do_finalize(desc, __sha256_block_data_order);
return sha256_base_finish(desc, out);
}
@@ -75,11 +86,9 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
sctx->finalize = finalize;
kernel_neon_begin();
- sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha2_ce_transform);
+ sha256_base_do_update(desc, data, len, __sha2_ce_transform);
if (!finalize)
- sha256_base_do_finalize(desc,
- (sha256_block_fn *)sha2_ce_transform);
+ sha256_base_do_finalize(desc, __sha2_ce_transform);
kernel_neon_end();
return sha256_base_finish(desc, out);
}
@@ -89,14 +98,13 @@ static int sha256_ce_final(struct shash_desc *desc, u8 *out)
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
if (!crypto_simd_usable()) {
- sha256_base_do_finalize(desc,
- (sha256_block_fn *)sha256_block_data_order);
+ sha256_base_do_finalize(desc, __sha256_block_data_order);
return sha256_base_finish(desc, out);
}
sctx->finalize = 0;
kernel_neon_begin();
- sha256_base_do_finalize(desc, (sha256_block_fn *)sha2_ce_transform);
+ sha256_base_do_finalize(desc, __sha2_ce_transform);
kernel_neon_end();
return sha256_base_finish(desc, out);
}
diff --git a/arch/arm64/crypto/sha256-glue.c b/arch/arm64/crypto/sha256-glue.c
index e273faca924f..ddf4a0d85c1c 100644
--- a/arch/arm64/crypto/sha256-glue.c
+++ b/arch/arm64/crypto/sha256-glue.c
@@ -27,14 +27,26 @@ asmlinkage void sha256_block_data_order(u32 *digest, const void *data,
unsigned int num_blks);
EXPORT_SYMBOL(sha256_block_data_order);
+static void __sha256_block_data_order(struct sha256_state *sst, u8 const *src,
+ int blocks)
+{
+ sha256_block_data_order(sst->state, src, blocks);
+}
+
asmlinkage void sha256_block_neon(u32 *digest, const void *data,
unsigned int num_blks);
+static void __sha256_block_neon(struct sha256_state *sst, u8 const *src,
+ int blocks)
+{
+ sha256_block_neon(sst->state, src, blocks);
+}
+
static int crypto_sha256_arm64_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_block_data_order);
+ __sha256_block_data_order);
}
static int crypto_sha256_arm64_finup(struct shash_desc *desc, const u8 *data,
@@ -42,9 +54,8 @@ static int crypto_sha256_arm64_finup(struct shash_desc *desc, const u8 *data,
{
if (len)
sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_block_data_order);
- sha256_base_do_finalize(desc,
- (sha256_block_fn *)sha256_block_data_order);
+ __sha256_block_data_order);
+ sha256_base_do_finalize(desc, __sha256_block_data_order);
return sha256_base_finish(desc, out);
}
@@ -87,7 +98,7 @@ static int sha256_update_neon(struct shash_desc *desc, const u8 *data,
if (!crypto_simd_usable())
return sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_block_data_order);
+ __sha256_block_data_order);
while (len > 0) {
unsigned int chunk = len;
@@ -97,14 +108,13 @@ static int sha256_update_neon(struct shash_desc *desc, const u8 *data,
* input when running on a preemptible kernel, but process the
* data block by block instead.
*/
- if (IS_ENABLED(CONFIG_PREEMPT) &&
+ if (IS_ENABLED(CONFIG_PREEMPTION) &&
chunk + sctx->count % SHA256_BLOCK_SIZE > SHA256_BLOCK_SIZE)
chunk = SHA256_BLOCK_SIZE -
sctx->count % SHA256_BLOCK_SIZE;
kernel_neon_begin();
- sha256_base_do_update(desc, data, chunk,
- (sha256_block_fn *)sha256_block_neon);
+ sha256_base_do_update(desc, data, chunk, __sha256_block_neon);
kernel_neon_end();
data += chunk;
len -= chunk;
@@ -118,15 +128,13 @@ static int sha256_finup_neon(struct shash_desc *desc, const u8 *data,
if (!crypto_simd_usable()) {
if (len)
sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_block_data_order);
- sha256_base_do_finalize(desc,
- (sha256_block_fn *)sha256_block_data_order);
+ __sha256_block_data_order);
+ sha256_base_do_finalize(desc, __sha256_block_data_order);
} else {
if (len)
sha256_update_neon(desc, data, len);
kernel_neon_begin();
- sha256_base_do_finalize(desc,
- (sha256_block_fn *)sha256_block_neon);
+ sha256_base_do_finalize(desc, __sha256_block_neon);
kernel_neon_end();
}
return sha256_base_finish(desc, out);
diff --git a/arch/arm64/crypto/sha3-ce-core.S b/arch/arm64/crypto/sha3-ce-core.S
index a7d587fa54f6..1cfb768df350 100644
--- a/arch/arm64/crypto/sha3-ce-core.S
+++ b/arch/arm64/crypto/sha3-ce-core.S
@@ -40,7 +40,7 @@
* sha3_ce_transform(u64 *st, const u8 *data, int blocks, int dg_size)
*/
.text
-ENTRY(sha3_ce_transform)
+SYM_FUNC_START(sha3_ce_transform)
frame_push 4
mov x19, x0
@@ -218,7 +218,7 @@ ENTRY(sha3_ce_transform)
st1 {v24.1d}, [x19]
frame_pop
ret
-ENDPROC(sha3_ce_transform)
+SYM_FUNC_END(sha3_ce_transform)
.section ".rodata", "a"
.align 8
diff --git a/arch/arm64/crypto/sha512-ce-core.S b/arch/arm64/crypto/sha512-ce-core.S
index ce65e3abe4f2..cde606c0323e 100644
--- a/arch/arm64/crypto/sha512-ce-core.S
+++ b/arch/arm64/crypto/sha512-ce-core.S
@@ -106,7 +106,7 @@
* int blocks)
*/
.text
-ENTRY(sha512_ce_transform)
+SYM_FUNC_START(sha512_ce_transform)
frame_push 3
mov x19, x0
@@ -216,4 +216,4 @@ CPU_LE( rev64 v19.16b, v19.16b )
3: st1 {v8.2d-v11.2d}, [x19]
frame_pop
ret
-ENDPROC(sha512_ce_transform)
+SYM_FUNC_END(sha512_ce_transform)
diff --git a/arch/arm64/crypto/sha512-ce-glue.c b/arch/arm64/crypto/sha512-ce-glue.c
index 2369540040aa..dc890a719f54 100644
--- a/arch/arm64/crypto/sha512-ce-glue.c
+++ b/arch/arm64/crypto/sha512-ce-glue.c
@@ -29,16 +29,21 @@ asmlinkage void sha512_ce_transform(struct sha512_state *sst, u8 const *src,
asmlinkage void sha512_block_data_order(u64 *digest, u8 const *src, int blocks);
+static void __sha512_block_data_order(struct sha512_state *sst, u8 const *src,
+ int blocks)
+{
+ sha512_block_data_order(sst->state, src, blocks);
+}
+
static int sha512_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
if (!crypto_simd_usable())
return sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_block_data_order);
+ __sha512_block_data_order);
kernel_neon_begin();
- sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_ce_transform);
+ sha512_base_do_update(desc, data, len, sha512_ce_transform);
kernel_neon_end();
return 0;
@@ -50,16 +55,14 @@ static int sha512_ce_finup(struct shash_desc *desc, const u8 *data,
if (!crypto_simd_usable()) {
if (len)
sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_block_data_order);
- sha512_base_do_finalize(desc,
- (sha512_block_fn *)sha512_block_data_order);
+ __sha512_block_data_order);
+ sha512_base_do_finalize(desc, __sha512_block_data_order);
return sha512_base_finish(desc, out);
}
kernel_neon_begin();
- sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_ce_transform);
- sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_ce_transform);
+ sha512_base_do_update(desc, data, len, sha512_ce_transform);
+ sha512_base_do_finalize(desc, sha512_ce_transform);
kernel_neon_end();
return sha512_base_finish(desc, out);
}
@@ -67,13 +70,12 @@ static int sha512_ce_finup(struct shash_desc *desc, const u8 *data,
static int sha512_ce_final(struct shash_desc *desc, u8 *out)
{
if (!crypto_simd_usable()) {
- sha512_base_do_finalize(desc,
- (sha512_block_fn *)sha512_block_data_order);
+ sha512_base_do_finalize(desc, __sha512_block_data_order);
return sha512_base_finish(desc, out);
}
kernel_neon_begin();
- sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_ce_transform);
+ sha512_base_do_finalize(desc, sha512_ce_transform);
kernel_neon_end();
return sha512_base_finish(desc, out);
}
diff --git a/arch/arm64/crypto/sha512-glue.c b/arch/arm64/crypto/sha512-glue.c
index d915c656e5fe..78d3083de6b7 100644
--- a/arch/arm64/crypto/sha512-glue.c
+++ b/arch/arm64/crypto/sha512-glue.c
@@ -20,15 +20,21 @@ MODULE_LICENSE("GPL v2");
MODULE_ALIAS_CRYPTO("sha384");
MODULE_ALIAS_CRYPTO("sha512");
-asmlinkage void sha512_block_data_order(u32 *digest, const void *data,
+asmlinkage void sha512_block_data_order(u64 *digest, const void *data,
unsigned int num_blks);
EXPORT_SYMBOL(sha512_block_data_order);
+static void __sha512_block_data_order(struct sha512_state *sst, u8 const *src,
+ int blocks)
+{
+ sha512_block_data_order(sst->state, src, blocks);
+}
+
static int sha512_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
return sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_block_data_order);
+ __sha512_block_data_order);
}
static int sha512_finup(struct shash_desc *desc, const u8 *data,
@@ -36,9 +42,8 @@ static int sha512_finup(struct shash_desc *desc, const u8 *data,
{
if (len)
sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_block_data_order);
- sha512_base_do_finalize(desc,
- (sha512_block_fn *)sha512_block_data_order);
+ __sha512_block_data_order);
+ sha512_base_do_finalize(desc, __sha512_block_data_order);
return sha512_base_finish(desc, out);
}
diff --git a/arch/arm64/crypto/sm3-ce-core.S b/arch/arm64/crypto/sm3-ce-core.S
index d50d187906cb..ef97d3187cb7 100644
--- a/arch/arm64/crypto/sm3-ce-core.S
+++ b/arch/arm64/crypto/sm3-ce-core.S
@@ -73,7 +73,7 @@
* int blocks)
*/
.text
-ENTRY(sm3_ce_transform)
+SYM_FUNC_START(sm3_ce_transform)
/* load state */
ld1 {v8.4s-v9.4s}, [x0]
rev64 v8.4s, v8.4s
@@ -131,7 +131,7 @@ CPU_LE( rev32 v3.16b, v3.16b )
ext v9.16b, v9.16b, v9.16b, #8
st1 {v8.4s-v9.4s}, [x0]
ret
-ENDPROC(sm3_ce_transform)
+SYM_FUNC_END(sm3_ce_transform)
.section ".rodata", "a"
.align 3
diff --git a/arch/arm64/crypto/sm4-ce-core.S b/arch/arm64/crypto/sm4-ce-core.S
index af3bfbc3f4d4..4ac6cfbc5797 100644
--- a/arch/arm64/crypto/sm4-ce-core.S
+++ b/arch/arm64/crypto/sm4-ce-core.S
@@ -15,7 +15,7 @@
* void sm4_ce_do_crypt(const u32 *rk, u32 *out, const u32 *in);
*/
.text
-ENTRY(sm4_ce_do_crypt)
+SYM_FUNC_START(sm4_ce_do_crypt)
ld1 {v8.4s}, [x2]
ld1 {v0.4s-v3.4s}, [x0], #64
CPU_LE( rev32 v8.16b, v8.16b )
@@ -33,4 +33,4 @@ CPU_LE( rev32 v8.16b, v8.16b )
CPU_LE( rev32 v8.16b, v8.16b )
st1 {v8.4s}, [x1]
ret
-ENDPROC(sm4_ce_do_crypt)
+SYM_FUNC_END(sm4_ce_do_crypt)
diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h
index b9f8d787eea9..324e7d5ab37e 100644
--- a/arch/arm64/include/asm/alternative.h
+++ b/arch/arm64/include/asm/alternative.h
@@ -35,13 +35,16 @@ void apply_alternatives_module(void *start, size_t length);
static inline void apply_alternatives_module(void *start, size_t length) { }
#endif
-#define ALTINSTR_ENTRY(feature,cb) \
+#define ALTINSTR_ENTRY(feature) \
" .word 661b - .\n" /* label */ \
- " .if " __stringify(cb) " == 0\n" \
" .word 663f - .\n" /* new instruction */ \
- " .else\n" \
+ " .hword " __stringify(feature) "\n" /* feature bit */ \
+ " .byte 662b-661b\n" /* source len */ \
+ " .byte 664f-663f\n" /* replacement len */
+
+#define ALTINSTR_ENTRY_CB(feature, cb) \
+ " .word 661b - .\n" /* label */ \
" .word " __stringify(cb) "- .\n" /* callback */ \
- " .endif\n" \
" .hword " __stringify(feature) "\n" /* feature bit */ \
" .byte 662b-661b\n" /* source len */ \
" .byte 664f-663f\n" /* replacement len */
@@ -62,15 +65,14 @@ static inline void apply_alternatives_module(void *start, size_t length) { }
*
* Alternatives with callbacks do not generate replacement instructions.
*/
-#define __ALTERNATIVE_CFG(oldinstr, newinstr, feature, cfg_enabled, cb) \
+#define __ALTERNATIVE_CFG(oldinstr, newinstr, feature, cfg_enabled) \
".if "__stringify(cfg_enabled)" == 1\n" \
"661:\n\t" \
oldinstr "\n" \
"662:\n" \
".pushsection .altinstructions,\"a\"\n" \
- ALTINSTR_ENTRY(feature,cb) \
+ ALTINSTR_ENTRY(feature) \
".popsection\n" \
- " .if " __stringify(cb) " == 0\n" \
".pushsection .altinstr_replacement, \"a\"\n" \
"663:\n\t" \
newinstr "\n" \
@@ -78,17 +80,25 @@ static inline void apply_alternatives_module(void *start, size_t length) { }
".popsection\n\t" \
".org . - (664b-663b) + (662b-661b)\n\t" \
".org . - (662b-661b) + (664b-663b)\n" \
- ".else\n\t" \
+ ".endif\n"
+
+#define __ALTERNATIVE_CFG_CB(oldinstr, feature, cfg_enabled, cb) \
+ ".if "__stringify(cfg_enabled)" == 1\n" \
+ "661:\n\t" \
+ oldinstr "\n" \
+ "662:\n" \
+ ".pushsection .altinstructions,\"a\"\n" \
+ ALTINSTR_ENTRY_CB(feature, cb) \
+ ".popsection\n" \
"663:\n\t" \
"664:\n\t" \
- ".endif\n" \
".endif\n"
#define _ALTERNATIVE_CFG(oldinstr, newinstr, feature, cfg, ...) \
- __ALTERNATIVE_CFG(oldinstr, newinstr, feature, IS_ENABLED(cfg), 0)
+ __ALTERNATIVE_CFG(oldinstr, newinstr, feature, IS_ENABLED(cfg))
#define ALTERNATIVE_CB(oldinstr, cb) \
- __ALTERNATIVE_CFG(oldinstr, "NOT_AN_INSTRUCTION", ARM64_CB_PATCH, 1, cb)
+ __ALTERNATIVE_CFG_CB(oldinstr, ARM64_CB_PATCH, 1, cb)
#else
#include <asm/assembler.h>
diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h
index 89e4c8b79349..4750fc8030c3 100644
--- a/arch/arm64/include/asm/arch_gicv3.h
+++ b/arch/arm64/include/asm/arch_gicv3.h
@@ -141,6 +141,7 @@ static inline u32 gic_read_rpr(void)
#define gicr_read_pendbaser(c) readq_relaxed(c)
#define gits_write_vpropbaser(v, c) writeq_relaxed(v, c)
+#define gits_read_vpropbaser(c) readq_relaxed(c)
#define gits_write_vpendbaser(v, c) writeq_relaxed(v, c)
#define gits_read_vpendbaser(c) readq_relaxed(c)
diff --git a/arch/arm64/include/asm/archrandom.h b/arch/arm64/include/asm/archrandom.h
new file mode 100644
index 000000000000..3fe02da70004
--- /dev/null
+++ b/arch/arm64/include/asm/archrandom.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ARCHRANDOM_H
+#define _ASM_ARCHRANDOM_H
+
+#ifdef CONFIG_ARCH_RANDOM
+
+#include <linux/random.h>
+#include <asm/cpufeature.h>
+
+static inline bool __arm64_rndr(unsigned long *v)
+{
+ bool ok;
+
+ /*
+ * Reads of RNDR set PSTATE.NZCV to 0b0000 on success,
+ * and set PSTATE.NZCV to 0b0100 otherwise.
+ */
+ asm volatile(
+ __mrs_s("%0", SYS_RNDR_EL0) "\n"
+ " cset %w1, ne\n"
+ : "=r" (*v), "=r" (ok)
+ :
+ : "cc");
+
+ return ok;
+}
+
+static inline bool __must_check arch_get_random_long(unsigned long *v)
+{
+ return false;
+}
+
+static inline bool __must_check arch_get_random_int(unsigned int *v)
+{
+ return false;
+}
+
+static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
+{
+ /*
+ * Only support the generic interface after we have detected
+ * the system wide capability, avoiding complexity with the
+ * cpufeature code and with potential scheduling between CPUs
+ * with and without the feature.
+ */
+ if (!cpus_have_const_cap(ARM64_HAS_RNG))
+ return false;
+
+ return __arm64_rndr(v);
+}
+
+
+static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
+{
+ unsigned long val;
+ bool ok = arch_get_random_seed_long(&val);
+
+ *v = val;
+ return ok;
+}
+
+static inline bool __init __early_cpu_has_rndr(void)
+{
+ /* Open code as we run prior to the first call to cpufeature. */
+ unsigned long ftr = read_sysreg_s(SYS_ID_AA64ISAR0_EL1);
+ return (ftr >> ID_AA64ISAR0_RNDR_SHIFT) & 0xf;
+}
+
+#else
+
+static inline bool __arm64_rndr(unsigned long *v) { return false; }
+static inline bool __init __early_cpu_has_rndr(void) { return false; }
+
+#endif /* CONFIG_ARCH_RANDOM */
+#endif /* _ASM_ARCHRANDOM_H */
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index b8cf7c85ffa2..aca337d79d12 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -40,12 +40,6 @@
msr daif, \flags
.endm
- /* Only on aarch64 pstate, PSR_D_BIT is different for aarch32 */
- .macro inherit_daif, pstate:req, tmp:req
- and \tmp, \pstate, #(PSR_D_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT)
- msr daif, \tmp
- .endm
-
/* IRQ is the lowest priority flag, unconditionally unmask the rest. */
.macro enable_da_f
msr daifclr, #(8 | 4 | 1)
@@ -86,13 +80,6 @@
.endm
/*
- * SMP data memory barrier
- */
- .macro smp_dmb, opt
- dmb \opt
- .endm
-
-/*
* RAS Error Synchronization barrier
*/
.macro esb
@@ -462,17 +449,6 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU
.endm
/*
- * Annotate a function as position independent, i.e., safe to be called before
- * the kernel virtual mapping is activated.
- */
-#define ENDPIPROC(x) \
- .globl __pi_##x; \
- .type __pi_##x, %function; \
- .set __pi_##x, x; \
- .size __pi_##x, . - x; \
- ENDPROC(x)
-
-/*
* Annotate a function as being unsuitable for kprobes.
*/
#ifdef CONFIG_KPROBES
@@ -699,8 +675,8 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU
* where <label> is optional, and marks the point where execution will resume
* after a yield has been performed. If omitted, execution resumes right after
* the endif_yield_neon invocation. Note that the entire sequence, including
- * the provided patchup code, will be omitted from the image if CONFIG_PREEMPT
- * is not defined.
+ * the provided patchup code, will be omitted from the image if
+ * CONFIG_PREEMPTION is not defined.
*
* As a convenience, in the case where no patchup code is required, the above
* sequence may be abbreviated to
@@ -728,7 +704,7 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU
.endm
.macro if_will_cond_yield_neon
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
get_current_task x0
ldr x0, [x0, #TSK_TI_PREEMPT]
sub x0, x0, #PREEMPT_DISABLE_OFFSET
diff --git a/arch/arm64/include/asm/atomic_ll_sc.h b/arch/arm64/include/asm/atomic_ll_sc.h
index 7b012148bfd6..13869b76b58c 100644
--- a/arch/arm64/include/asm/atomic_ll_sc.h
+++ b/arch/arm64/include/asm/atomic_ll_sc.h
@@ -12,7 +12,7 @@
#include <linux/stringify.h>
-#if IS_ENABLED(CONFIG_ARM64_LSE_ATOMICS) && IS_ENABLED(CONFIG_AS_LSE)
+#ifdef CONFIG_ARM64_LSE_ATOMICS
#define __LL_SC_FALLBACK(asm_ops) \
" b 3f\n" \
" .subsection 1\n" \
diff --git a/arch/arm64/include/asm/atomic_lse.h b/arch/arm64/include/asm/atomic_lse.h
index 574808b9df4c..da3280f639cd 100644
--- a/arch/arm64/include/asm/atomic_lse.h
+++ b/arch/arm64/include/asm/atomic_lse.h
@@ -14,6 +14,7 @@
static inline void __lse_atomic_##op(int i, atomic_t *v) \
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" " #asm_op " %w[i], %[v]\n" \
: [i] "+r" (i), [v] "+Q" (v->counter) \
: "r" (v)); \
@@ -30,6 +31,7 @@ ATOMIC_OP(add, stadd)
static inline int __lse_atomic_fetch_##op##name(int i, atomic_t *v) \
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" " #asm_op #mb " %w[i], %w[i], %[v]" \
: [i] "+r" (i), [v] "+Q" (v->counter) \
: "r" (v) \
@@ -58,6 +60,7 @@ static inline int __lse_atomic_add_return##name(int i, atomic_t *v) \
u32 tmp; \
\
asm volatile( \
+ __LSE_PREAMBLE \
" ldadd" #mb " %w[i], %w[tmp], %[v]\n" \
" add %w[i], %w[i], %w[tmp]" \
: [i] "+r" (i), [v] "+Q" (v->counter), [tmp] "=&r" (tmp) \
@@ -77,6 +80,7 @@ ATOMIC_OP_ADD_RETURN( , al, "memory")
static inline void __lse_atomic_and(int i, atomic_t *v)
{
asm volatile(
+ __LSE_PREAMBLE
" mvn %w[i], %w[i]\n"
" stclr %w[i], %[v]"
: [i] "+&r" (i), [v] "+Q" (v->counter)
@@ -87,6 +91,7 @@ static inline void __lse_atomic_and(int i, atomic_t *v)
static inline int __lse_atomic_fetch_and##name(int i, atomic_t *v) \
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" mvn %w[i], %w[i]\n" \
" ldclr" #mb " %w[i], %w[i], %[v]" \
: [i] "+&r" (i), [v] "+Q" (v->counter) \
@@ -106,6 +111,7 @@ ATOMIC_FETCH_OP_AND( , al, "memory")
static inline void __lse_atomic_sub(int i, atomic_t *v)
{
asm volatile(
+ __LSE_PREAMBLE
" neg %w[i], %w[i]\n"
" stadd %w[i], %[v]"
: [i] "+&r" (i), [v] "+Q" (v->counter)
@@ -118,6 +124,7 @@ static inline int __lse_atomic_sub_return##name(int i, atomic_t *v) \
u32 tmp; \
\
asm volatile( \
+ __LSE_PREAMBLE \
" neg %w[i], %w[i]\n" \
" ldadd" #mb " %w[i], %w[tmp], %[v]\n" \
" add %w[i], %w[i], %w[tmp]" \
@@ -139,6 +146,7 @@ ATOMIC_OP_SUB_RETURN( , al, "memory")
static inline int __lse_atomic_fetch_sub##name(int i, atomic_t *v) \
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" neg %w[i], %w[i]\n" \
" ldadd" #mb " %w[i], %w[i], %[v]" \
: [i] "+&r" (i), [v] "+Q" (v->counter) \
@@ -159,6 +167,7 @@ ATOMIC_FETCH_OP_SUB( , al, "memory")
static inline void __lse_atomic64_##op(s64 i, atomic64_t *v) \
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" " #asm_op " %[i], %[v]\n" \
: [i] "+r" (i), [v] "+Q" (v->counter) \
: "r" (v)); \
@@ -175,6 +184,7 @@ ATOMIC64_OP(add, stadd)
static inline long __lse_atomic64_fetch_##op##name(s64 i, atomic64_t *v)\
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" " #asm_op #mb " %[i], %[i], %[v]" \
: [i] "+r" (i), [v] "+Q" (v->counter) \
: "r" (v) \
@@ -203,6 +213,7 @@ static inline long __lse_atomic64_add_return##name(s64 i, atomic64_t *v)\
unsigned long tmp; \
\
asm volatile( \
+ __LSE_PREAMBLE \
" ldadd" #mb " %[i], %x[tmp], %[v]\n" \
" add %[i], %[i], %x[tmp]" \
: [i] "+r" (i), [v] "+Q" (v->counter), [tmp] "=&r" (tmp) \
@@ -222,6 +233,7 @@ ATOMIC64_OP_ADD_RETURN( , al, "memory")
static inline void __lse_atomic64_and(s64 i, atomic64_t *v)
{
asm volatile(
+ __LSE_PREAMBLE
" mvn %[i], %[i]\n"
" stclr %[i], %[v]"
: [i] "+&r" (i), [v] "+Q" (v->counter)
@@ -232,6 +244,7 @@ static inline void __lse_atomic64_and(s64 i, atomic64_t *v)
static inline long __lse_atomic64_fetch_and##name(s64 i, atomic64_t *v) \
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" mvn %[i], %[i]\n" \
" ldclr" #mb " %[i], %[i], %[v]" \
: [i] "+&r" (i), [v] "+Q" (v->counter) \
@@ -251,6 +264,7 @@ ATOMIC64_FETCH_OP_AND( , al, "memory")
static inline void __lse_atomic64_sub(s64 i, atomic64_t *v)
{
asm volatile(
+ __LSE_PREAMBLE
" neg %[i], %[i]\n"
" stadd %[i], %[v]"
: [i] "+&r" (i), [v] "+Q" (v->counter)
@@ -263,6 +277,7 @@ static inline long __lse_atomic64_sub_return##name(s64 i, atomic64_t *v) \
unsigned long tmp; \
\
asm volatile( \
+ __LSE_PREAMBLE \
" neg %[i], %[i]\n" \
" ldadd" #mb " %[i], %x[tmp], %[v]\n" \
" add %[i], %[i], %x[tmp]" \
@@ -284,6 +299,7 @@ ATOMIC64_OP_SUB_RETURN( , al, "memory")
static inline long __lse_atomic64_fetch_sub##name(s64 i, atomic64_t *v) \
{ \
asm volatile( \
+ __LSE_PREAMBLE \
" neg %[i], %[i]\n" \
" ldadd" #mb " %[i], %[i], %[v]" \
: [i] "+&r" (i), [v] "+Q" (v->counter) \
@@ -305,6 +321,7 @@ static inline s64 __lse_atomic64_dec_if_positive(atomic64_t *v)
unsigned long tmp;
asm volatile(
+ __LSE_PREAMBLE
"1: ldr %x[tmp], %[v]\n"
" subs %[ret], %x[tmp], #1\n"
" b.lt 2f\n"
@@ -332,6 +349,7 @@ __lse__cmpxchg_case_##name##sz(volatile void *ptr, \
unsigned long tmp; \
\
asm volatile( \
+ __LSE_PREAMBLE \
" mov %" #w "[tmp], %" #w "[old]\n" \
" cas" #mb #sfx "\t%" #w "[tmp], %" #w "[new], %[v]\n" \
" mov %" #w "[ret], %" #w "[tmp]" \
@@ -379,6 +397,7 @@ __lse__cmpxchg_double##name(unsigned long old1, \
register unsigned long x4 asm ("x4") = (unsigned long)ptr; \
\
asm volatile( \
+ __LSE_PREAMBLE \
" casp" #mb "\t%[old1], %[old2], %[new1], %[new2], %[v]\n"\
" eor %[old1], %[old1], %[oldval1]\n" \
" eor %[old2], %[old2], %[oldval2]\n" \
diff --git a/arch/arm64/include/asm/checksum.h b/arch/arm64/include/asm/checksum.h
index d064a50deb5f..8d2a7de39744 100644
--- a/arch/arm64/include/asm/checksum.h
+++ b/arch/arm64/include/asm/checksum.h
@@ -35,6 +35,9 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
}
#define ip_fast_csum ip_fast_csum
+extern unsigned int do_csum(const unsigned char *buff, int len);
+#define do_csum do_csum
+
#include <asm-generic/checksum.h>
#endif /* __ASM_CHECKSUM_H */
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index b0d53a265f1d..935d2aa231bf 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -4,6 +4,9 @@
*/
#ifndef __ASM_COMPAT_H
#define __ASM_COMPAT_H
+
+#include <asm-generic/compat.h>
+
#ifdef CONFIG_COMPAT
/*
@@ -13,8 +16,6 @@
#include <linux/sched.h>
#include <linux/sched/task_stack.h>
-#include <asm-generic/compat.h>
-
#define COMPAT_USER_HZ 100
#ifdef __AARCH64EB__
#define COMPAT_UTS_MACHINE "armv8b\0\0"
@@ -113,23 +114,6 @@ typedef u32 compat_sigset_word;
#define COMPAT_OFF_T_MAX 0x7fffffff
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
- return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
- return (u32)(unsigned long)uptr;
-}
-
#define compat_user_stack_pointer() (user_stack_pointer(task_pt_regs(current)))
#define COMPAT_MINSIGSTKSZ 2048
diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
index d72d995b7e25..b4a40535a3d8 100644
--- a/arch/arm64/include/asm/cpu.h
+++ b/arch/arm64/include/asm/cpu.h
@@ -39,6 +39,7 @@ struct cpuinfo_arm64 {
u32 reg_id_isar3;
u32 reg_id_isar4;
u32 reg_id_isar5;
+ u32 reg_id_isar6;
u32 reg_id_mmfr0;
u32 reg_id_mmfr1;
u32 reg_id_mmfr2;
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index b92683871119..865e0253fc1e 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -44,7 +44,7 @@
#define ARM64_SSBS 34
#define ARM64_WORKAROUND_1418040 35
#define ARM64_HAS_SB 36
-#define ARM64_WORKAROUND_1165522 37
+#define ARM64_WORKAROUND_SPECULATIVE_AT_VHE 37
#define ARM64_HAS_ADDRESS_AUTH_ARCH 38
#define ARM64_HAS_ADDRESS_AUTH_IMP_DEF 39
#define ARM64_HAS_GENERIC_AUTH_ARCH 40
@@ -55,8 +55,10 @@
#define ARM64_WORKAROUND_CAVIUM_TX2_219_TVM 45
#define ARM64_WORKAROUND_CAVIUM_TX2_219_PRFM 46
#define ARM64_WORKAROUND_1542419 47
-#define ARM64_WORKAROUND_1319367 48
+#define ARM64_WORKAROUND_SPECULATIVE_AT_NVHE 48
+#define ARM64_HAS_E0PD 49
+#define ARM64_HAS_RNG 50
-#define ARM64_NCAPS 49
+#define ARM64_NCAPS 51
#endif /* __ASM_CPUCAPS_H */
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h
index 4261d55e8506..92ef9539874a 100644
--- a/arch/arm64/include/asm/cpufeature.h
+++ b/arch/arm64/include/asm/cpufeature.h
@@ -613,6 +613,11 @@ static inline bool system_has_prio_mask_debugging(void)
system_uses_irq_prio_masking();
}
+static inline bool system_capabilities_finalized(void)
+{
+ return static_branch_likely(&arm64_const_caps_ready);
+}
+
#define ARM64_BP_HARDEN_UNKNOWN -1
#define ARM64_BP_HARDEN_WA_NEEDED 0
#define ARM64_BP_HARDEN_NOT_REQUIRED 1
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index aca07c2f6e6e..a87a93f67671 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -85,6 +85,8 @@
#define QCOM_CPU_PART_FALKOR_V1 0x800
#define QCOM_CPU_PART_FALKOR 0xC00
#define QCOM_CPU_PART_KRYO 0x200
+#define QCOM_CPU_PART_KRYO_3XX_SILVER 0x803
+#define QCOM_CPU_PART_KRYO_4XX_SILVER 0x805
#define NVIDIA_CPU_PART_DENVER 0x003
#define NVIDIA_CPU_PART_CARMEL 0x004
@@ -111,6 +113,8 @@
#define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1)
#define MIDR_QCOM_FALKOR MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR)
#define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO)
+#define MIDR_QCOM_KRYO_3XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_3XX_SILVER)
+#define MIDR_QCOM_KRYO_4XX_SILVER MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO_4XX_SILVER)
#define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER)
#define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
#define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX)
diff --git a/arch/arm64/include/asm/daifflags.h b/arch/arm64/include/asm/daifflags.h
index 72acd2db167f..ec213b4a1650 100644
--- a/arch/arm64/include/asm/daifflags.h
+++ b/arch/arm64/include/asm/daifflags.h
@@ -38,7 +38,7 @@ static inline void local_daif_mask(void)
trace_hardirqs_off();
}
-static inline unsigned long local_daif_save(void)
+static inline unsigned long local_daif_save_flags(void)
{
unsigned long flags;
@@ -50,6 +50,15 @@ static inline unsigned long local_daif_save(void)
flags |= PSR_I_BIT;
}
+ return flags;
+}
+
+static inline unsigned long local_daif_save(void)
+{
+ unsigned long flags;
+
+ flags = local_daif_save_flags();
+
local_daif_mask();
return flags;
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index b54d3a86c444..44531a69d32b 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -93,21 +93,17 @@ static inline unsigned long efi_get_max_initrd_addr(unsigned long dram_base,
return (image_addr & ~(SZ_1G - 1UL)) + (1UL << (VA_BITS_MIN - 1));
}
-#define efi_call_early(f, ...) sys_table_arg->boottime->f(__VA_ARGS__)
-#define __efi_call_early(f, ...) f(__VA_ARGS__)
-#define efi_call_runtime(f, ...) sys_table_arg->runtime->f(__VA_ARGS__)
-#define efi_is_64bit() (true)
+#define efi_bs_call(func, ...) efi_system_table()->boottime->func(__VA_ARGS__)
+#define efi_rt_call(func, ...) efi_system_table()->runtime->func(__VA_ARGS__)
+#define efi_is_native() (true)
-#define efi_table_attr(table, attr, instance) \
- ((table##_t *)instance)->attr
+#define efi_table_attr(inst, attr) (inst->attr)
-#define efi_call_proto(protocol, f, instance, ...) \
- ((protocol##_t *)instance)->f(instance, ##__VA_ARGS__)
+#define efi_call_proto(inst, func, ...) inst->func(inst, ##__VA_ARGS__)
#define alloc_screen_info(x...) &screen_info
-static inline void free_screen_info(efi_system_table_t *sys_table_arg,
- struct screen_info *si)
+static inline void free_screen_info(struct screen_info *si)
{
}
diff --git a/arch/arm64/include/asm/exception.h b/arch/arm64/include/asm/exception.h
index 4d5f3b5f50cd..b87c6e276ab1 100644
--- a/arch/arm64/include/asm/exception.h
+++ b/arch/arm64/include/asm/exception.h
@@ -45,8 +45,8 @@ void do_sysinstr(unsigned int esr, struct pt_regs *regs);
void do_sp_pc_abort(unsigned long addr, unsigned int esr, struct pt_regs *regs);
void bad_el0_sync(struct pt_regs *regs, int reason, unsigned int esr);
void do_cp15instr(unsigned int esr, struct pt_regs *regs);
-void el0_svc_handler(struct pt_regs *regs);
-void el0_svc_compat_handler(struct pt_regs *regs);
+void do_el0_svc(struct pt_regs *regs);
+void do_el0_svc_compat(struct pt_regs *regs);
void do_el0_ia_bp_hardening(unsigned long addr, unsigned int esr,
struct pt_regs *regs);
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index 3d2f2472a36c..0f00265248b5 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -86,6 +86,14 @@
#define KERNEL_HWCAP_SVESM4 __khwcap2_feature(SVESM4)
#define KERNEL_HWCAP_FLAGM2 __khwcap2_feature(FLAGM2)
#define KERNEL_HWCAP_FRINT __khwcap2_feature(FRINT)
+#define KERNEL_HWCAP_SVEI8MM __khwcap2_feature(SVEI8MM)
+#define KERNEL_HWCAP_SVEF32MM __khwcap2_feature(SVEF32MM)
+#define KERNEL_HWCAP_SVEF64MM __khwcap2_feature(SVEF64MM)
+#define KERNEL_HWCAP_SVEBF16 __khwcap2_feature(SVEBF16)
+#define KERNEL_HWCAP_I8MM __khwcap2_feature(I8MM)
+#define KERNEL_HWCAP_BF16 __khwcap2_feature(BF16)
+#define KERNEL_HWCAP_DGH __khwcap2_feature(DGH)
+#define KERNEL_HWCAP_RNG __khwcap2_feature(RNG)
/*
* This yields a mask that user programs can use to figure out what
diff --git a/arch/arm64/include/asm/kexec.h b/arch/arm64/include/asm/kexec.h
index 12a561a54128..d24b527e8c00 100644
--- a/arch/arm64/include/asm/kexec.h
+++ b/arch/arm64/include/asm/kexec.h
@@ -96,6 +96,10 @@ static inline void crash_post_resume(void) {}
struct kimage_arch {
void *dtb;
unsigned long dtb_mem;
+ /* Core ELF header buffer */
+ void *elf_headers;
+ unsigned long elf_headers_mem;
+ unsigned long elf_headers_sz;
};
extern const struct kexec_file_ops kexec_image_ops;
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index c61260cf63c5..f5acdde17f3b 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -547,7 +547,7 @@ static inline void __cpu_init_hyp_mode(phys_addr_t pgd_ptr,
* wrong, and hyp will crash and burn when it uses any
* cpus_have_const_cap() wrapper.
*/
- BUG_ON(!static_branch_likely(&arm64_const_caps_ready));
+ BUG_ON(!system_capabilities_finalized());
__kvm_call_hyp((void *)pgd_ptr, hyp_stack_ptr, vector_ptr, tpidr_el2);
/*
@@ -571,7 +571,7 @@ static inline bool kvm_arch_requires_vhe(void)
return true;
/* Some implementations have defects that confine them to VHE */
- if (cpus_have_cap(ARM64_WORKAROUND_1165522))
+ if (cpus_have_cap(ARM64_WORKAROUND_SPECULATIVE_AT_VHE))
return true;
return false;
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index 97f21cc66657..a3a6a2ba9a63 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -91,11 +91,11 @@ static __always_inline void __hyp_text __load_guest_stage2(struct kvm *kvm)
write_sysreg(kvm_get_vttbr(kvm), vttbr_el2);
/*
- * ARM erratum 1165522 requires the actual execution of the above
- * before we can switch to the EL1/EL0 translation regime used by
+ * ARM errata 1165522 and 1530923 require the actual execution of the
+ * above before we can switch to the EL1/EL0 translation regime used by
* the guest.
*/
- asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_1165522));
+ asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_SPECULATIVE_AT_VHE));
}
#endif /* __ARM64_KVM_HYP_H__ */
diff --git a/arch/arm64/include/asm/linkage.h b/arch/arm64/include/asm/linkage.h
index 1b266292f0be..ebee3113a62f 100644
--- a/arch/arm64/include/asm/linkage.h
+++ b/arch/arm64/include/asm/linkage.h
@@ -4,4 +4,20 @@
#define __ALIGN .align 2
#define __ALIGN_STR ".align 2"
+/*
+ * Annotate a function as position independent, i.e., safe to be called before
+ * the kernel virtual mapping is activated.
+ */
+#define SYM_FUNC_START_PI(x) \
+ SYM_FUNC_START_ALIAS(__pi_##x); \
+ SYM_FUNC_START(x)
+
+#define SYM_FUNC_START_WEAK_PI(x) \
+ SYM_FUNC_START_ALIAS(__pi_##x); \
+ SYM_FUNC_START_WEAK(x)
+
+#define SYM_FUNC_END_PI(x) \
+ SYM_FUNC_END(x); \
+ SYM_FUNC_END_ALIAS(__pi_##x)
+
#endif
diff --git a/arch/arm64/include/asm/lse.h b/arch/arm64/include/asm/lse.h
index 80b388278149..d429f7701c36 100644
--- a/arch/arm64/include/asm/lse.h
+++ b/arch/arm64/include/asm/lse.h
@@ -4,7 +4,9 @@
#include <asm/atomic_ll_sc.h>
-#if defined(CONFIG_AS_LSE) && defined(CONFIG_ARM64_LSE_ATOMICS)
+#ifdef CONFIG_ARM64_LSE_ATOMICS
+
+#define __LSE_PREAMBLE ".arch armv8-a+lse\n"
#include <linux/compiler_types.h>
#include <linux/export.h>
@@ -14,8 +16,6 @@
#include <asm/atomic_lse.h>
#include <asm/cpucaps.h>
-__asm__(".arch_extension lse");
-
extern struct static_key_false cpu_hwcap_keys[ARM64_NCAPS];
extern struct static_key_false arm64_const_caps_ready;
@@ -34,9 +34,9 @@ static inline bool system_uses_lse_atomics(void)
/* In-line patching at runtime */
#define ARM64_LSE_ATOMIC_INSN(llsc, lse) \
- ALTERNATIVE(llsc, lse, ARM64_HAS_LSE_ATOMICS)
+ ALTERNATIVE(llsc, __LSE_PREAMBLE lse, ARM64_HAS_LSE_ATOMICS)
-#else /* CONFIG_AS_LSE && CONFIG_ARM64_LSE_ATOMICS */
+#else /* CONFIG_ARM64_LSE_ATOMICS */
static inline bool system_uses_lse_atomics(void) { return false; }
@@ -44,5 +44,5 @@ static inline bool system_uses_lse_atomics(void) { return false; }
#define ARM64_LSE_ATOMIC_INSN(llsc, lse) llsc
-#endif /* CONFIG_AS_LSE && CONFIG_ARM64_LSE_ATOMICS */
+#endif /* CONFIG_ARM64_LSE_ATOMICS */
#endif /* __ASM_LSE_H */
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index f217e3292919..e4d862420bb4 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -29,52 +29,11 @@ typedef struct {
*/
#define ASID(mm) ((mm)->context.id.counter & 0xffff)
-static inline bool arm64_kernel_unmapped_at_el0(void)
-{
- return IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0) &&
- cpus_have_const_cap(ARM64_UNMAP_KERNEL_AT_EL0);
-}
+extern bool arm64_use_ng_mappings;
-static inline bool arm64_kernel_use_ng_mappings(void)
+static inline bool arm64_kernel_unmapped_at_el0(void)
{
- bool tx1_bug;
-
- /* What's a kpti? Use global mappings if we don't know. */
- if (!IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0))
- return false;
-
- /*
- * Note: this function is called before the CPU capabilities have
- * been configured, so our early mappings will be global. If we
- * later determine that kpti is required, then
- * kpti_install_ng_mappings() will make them non-global.
- */
- if (arm64_kernel_unmapped_at_el0())
- return true;
-
- if (!IS_ENABLED(CONFIG_RANDOMIZE_BASE))
- return false;
-
- /*
- * KASLR is enabled so we're going to be enabling kpti on non-broken
- * CPUs regardless of their susceptibility to Meltdown. Rather
- * than force everybody to go through the G -> nG dance later on,
- * just put down non-global mappings from the beginning.
- */
- if (!IS_ENABLED(CONFIG_CAVIUM_ERRATUM_27456)) {
- tx1_bug = false;
-#ifndef MODULE
- } else if (!static_branch_likely(&arm64_const_caps_ready)) {
- extern const struct midr_range cavium_erratum_27456_cpus[];
-
- tx1_bug = is_midr_in_range_list(read_cpuid_id(),
- cavium_erratum_27456_cpus);
-#endif
- } else {
- tx1_bug = __cpus_have_const_cap(ARM64_WORKAROUND_CAVIUM_27456);
- }
-
- return !tx1_bug && kaslr_offset() > 0;
+ return arm64_use_ng_mappings;
}
typedef void (*bp_hardening_cb_t)(void);
@@ -128,6 +87,7 @@ extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys,
pgprot_t prot, bool page_mappings_only);
extern void *fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot);
extern void mark_linear_text_alias_ro(void);
+extern bool kaslr_requires_kpti(void);
#define INIT_MM_CONTEXT(name) \
.pgd = init_pg_dir,
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index d9fbd433cc17..6bf5e650da78 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -110,6 +110,7 @@
#define PUD_TABLE_BIT (_AT(pudval_t, 1) << 1)
#define PUD_TYPE_MASK (_AT(pudval_t, 3) << 0)
#define PUD_TYPE_SECT (_AT(pudval_t, 1) << 0)
+#define PUD_SECT_RDONLY (_AT(pudval_t, 1) << 7) /* AP[2] */
/*
* Level 2 descriptor (PMD).
@@ -292,6 +293,8 @@
#define TCR_HD (UL(1) << 40)
#define TCR_NFD0 (UL(1) << 53)
#define TCR_NFD1 (UL(1) << 54)
+#define TCR_E0PD0 (UL(1) << 55)
+#define TCR_E0PD1 (UL(1) << 56)
/*
* TTBR.
diff --git a/arch/arm64/include/asm/pgtable-prot.h b/arch/arm64/include/asm/pgtable-prot.h
index 8dc6c5cdabe6..6f87839f0249 100644
--- a/arch/arm64/include/asm/pgtable-prot.h
+++ b/arch/arm64/include/asm/pgtable-prot.h
@@ -26,8 +26,8 @@
#define _PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED)
#define _PROT_SECT_DEFAULT (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S)
-#define PTE_MAYBE_NG (arm64_kernel_use_ng_mappings() ? PTE_NG : 0)
-#define PMD_MAYBE_NG (arm64_kernel_use_ng_mappings() ? PMD_SECT_NG : 0)
+#define PTE_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PTE_NG : 0)
+#define PMD_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PMD_SECT_NG : 0)
#define PROT_DEFAULT (_PROT_DEFAULT | PTE_MAYBE_NG)
#define PROT_SECT_DEFAULT (_PROT_SECT_DEFAULT | PMD_MAYBE_NG)
@@ -85,13 +85,12 @@
#define PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_WRITE)
#define PAGE_READONLY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN | PTE_UXN)
#define PAGE_READONLY_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_RDONLY | PTE_NG | PTE_PXN)
-#define PAGE_EXECONLY __pgprot(_PAGE_DEFAULT | PTE_RDONLY | PTE_NG | PTE_PXN)
#define __P000 PAGE_NONE
#define __P001 PAGE_READONLY
#define __P010 PAGE_READONLY
#define __P011 PAGE_READONLY
-#define __P100 PAGE_EXECONLY
+#define __P100 PAGE_READONLY_EXEC
#define __P101 PAGE_READONLY_EXEC
#define __P110 PAGE_READONLY_EXEC
#define __P111 PAGE_READONLY_EXEC
@@ -100,7 +99,7 @@
#define __S001 PAGE_READONLY
#define __S010 PAGE_SHARED
#define __S011 PAGE_SHARED
-#define __S100 PAGE_EXECONLY
+#define __S100 PAGE_READONLY_EXEC
#define __S101 PAGE_READONLY_EXEC
#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 5d15b4735a0e..cd5de0e40bfa 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -96,12 +96,8 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
#define pte_dirty(pte) (pte_sw_dirty(pte) || pte_hw_dirty(pte))
#define pte_valid(pte) (!!(pte_val(pte) & PTE_VALID))
-/*
- * Execute-only user mappings do not have the PTE_USER bit set. All valid
- * kernel mappings have the PTE_UXN bit set.
- */
#define pte_valid_not_user(pte) \
- ((pte_val(pte) & (PTE_VALID | PTE_USER | PTE_UXN)) == (PTE_VALID | PTE_UXN))
+ ((pte_val(pte) & (PTE_VALID | PTE_USER)) == PTE_VALID)
#define pte_valid_young(pte) \
((pte_val(pte) & (PTE_VALID | PTE_AF)) == (PTE_VALID | PTE_AF))
#define pte_valid_user(pte) \
@@ -117,8 +113,8 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
/*
* p??_access_permitted() is true for valid user mappings (subject to the
- * write permission check) other than user execute-only which do not have the
- * PTE_USER bit set. PROT_NONE mappings do not have the PTE_VALID bit set.
+ * write permission check). PROT_NONE mappings do not have the PTE_VALID bit
+ * set.
*/
#define pte_access_permitted(pte, write) \
(pte_valid_user(pte) && (!(write) || pte_write(pte)))
diff --git a/arch/arm64/include/asm/preempt.h b/arch/arm64/include/asm/preempt.h
index d49951647014..80e946b2abee 100644
--- a/arch/arm64/include/asm/preempt.h
+++ b/arch/arm64/include/asm/preempt.h
@@ -79,11 +79,11 @@ static inline bool should_resched(int preempt_offset)
return pc == preempt_offset;
}
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
void preempt_schedule(void);
#define __preempt_schedule() preempt_schedule()
void preempt_schedule_notrace(void);
#define __preempt_schedule_notrace() preempt_schedule_notrace()
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
#endif /* __ASM_PREEMPT_H */
diff --git a/arch/arm64/include/asm/sections.h b/arch/arm64/include/asm/sections.h
index 25a73aab438f..3994169985ef 100644
--- a/arch/arm64/include/asm/sections.h
+++ b/arch/arm64/include/asm/sections.h
@@ -8,7 +8,6 @@
#include <asm-generic/sections.h>
extern char __alt_instructions[], __alt_instructions_end[];
-extern char __exception_text_start[], __exception_text_end[];
extern char __hibernate_exit_text_start[], __hibernate_exit_text_end[];
extern char __hyp_idmap_text_start[], __hyp_idmap_text_end[];
extern char __hyp_text_start[], __hyp_text_end[];
diff --git a/arch/arm64/include/asm/simd.h b/arch/arm64/include/asm/simd.h
index 7434844036d3..89cba2622b79 100644
--- a/arch/arm64/include/asm/simd.h
+++ b/arch/arm64/include/asm/simd.h
@@ -26,6 +26,8 @@ DECLARE_PER_CPU(bool, fpsimd_context_busy);
static __must_check inline bool may_use_simd(void)
{
/*
+ * We must make sure that the SVE has been initialized properly
+ * before using the SIMD in kernel.
* fpsimd_context_busy is only set while preemption is disabled,
* and is clear whenever preemption is enabled. Since
* this_cpu_read() is atomic w.r.t. preemption, fpsimd_context_busy
@@ -33,8 +35,10 @@ static __must_check inline bool may_use_simd(void)
* migrated, and if it's clear we cannot be migrated to a CPU
* where it is set.
*/
- return !in_irq() && !irqs_disabled() && !in_nmi() &&
- !this_cpu_read(fpsimd_context_busy);
+ return !WARN_ON(!system_capabilities_finalized()) &&
+ system_supports_fpsimd() &&
+ !in_irq() && !irqs_disabled() && !in_nmi() &&
+ !this_cpu_read(fpsimd_context_busy);
}
#else /* ! CONFIG_KERNEL_MODE_NEON */
diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
index b093b287babf..102404dc1e13 100644
--- a/arch/arm64/include/asm/spinlock.h
+++ b/arch/arm64/include/asm/spinlock.h
@@ -11,4 +11,13 @@
/* See include/linux/spinlock.h */
#define smp_mb__after_spinlock() smp_mb()
+/*
+ * Changing this will break osq_lock() thanks to the call inside
+ * smp_cond_load_relaxed().
+ *
+ * See:
+ * https://lore.kernel.org/lkml/20200110100612.GC2827@hirez.programming.kicks-ass.net
+ */
+#define vcpu_is_preempted(cpu) false
+
#endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 6e919fafb43d..b91570ff9db1 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -146,6 +146,7 @@
#define SYS_ID_ISAR4_EL1 sys_reg(3, 0, 0, 2, 4)
#define SYS_ID_ISAR5_EL1 sys_reg(3, 0, 0, 2, 5)
#define SYS_ID_MMFR4_EL1 sys_reg(3, 0, 0, 2, 6)
+#define SYS_ID_ISAR6_EL1 sys_reg(3, 0, 0, 2, 7)
#define SYS_MVFR0_EL1 sys_reg(3, 0, 0, 3, 0)
#define SYS_MVFR1_EL1 sys_reg(3, 0, 0, 3, 1)
@@ -365,6 +366,9 @@
#define SYS_CTR_EL0 sys_reg(3, 3, 0, 0, 1)
#define SYS_DCZID_EL0 sys_reg(3, 3, 0, 0, 7)
+#define SYS_RNDR_EL0 sys_reg(3, 3, 2, 4, 0)
+#define SYS_RNDRRS_EL0 sys_reg(3, 3, 2, 4, 1)
+
#define SYS_PMCR_EL0 sys_reg(3, 3, 9, 12, 0)
#define SYS_PMCNTENSET_EL0 sys_reg(3, 3, 9, 12, 1)
#define SYS_PMCNTENCLR_EL0 sys_reg(3, 3, 9, 12, 2)
@@ -538,7 +542,20 @@
SCTLR_EL1_NTWE | SCTLR_ELx_IESB | SCTLR_EL1_SPAN |\
ENDIAN_SET_EL1 | SCTLR_EL1_UCI | SCTLR_EL1_RES1)
+/* MAIR_ELx memory attributes (used by Linux) */
+#define MAIR_ATTR_DEVICE_nGnRnE UL(0x00)
+#define MAIR_ATTR_DEVICE_nGnRE UL(0x04)
+#define MAIR_ATTR_DEVICE_GRE UL(0x0c)
+#define MAIR_ATTR_NORMAL_NC UL(0x44)
+#define MAIR_ATTR_NORMAL_WT UL(0xbb)
+#define MAIR_ATTR_NORMAL UL(0xff)
+#define MAIR_ATTR_MASK UL(0xff)
+
+/* Position the attr at the correct index */
+#define MAIR_ATTRIDX(attr, idx) ((attr) << ((idx) * 8))
+
/* id_aa64isar0 */
+#define ID_AA64ISAR0_RNDR_SHIFT 60
#define ID_AA64ISAR0_TS_SHIFT 52
#define ID_AA64ISAR0_FHM_SHIFT 48
#define ID_AA64ISAR0_DP_SHIFT 44
@@ -553,6 +570,10 @@
#define ID_AA64ISAR0_AES_SHIFT 4
/* id_aa64isar1 */
+#define ID_AA64ISAR1_I8MM_SHIFT 52
+#define ID_AA64ISAR1_DGH_SHIFT 48
+#define ID_AA64ISAR1_BF16_SHIFT 44
+#define ID_AA64ISAR1_SPECRES_SHIFT 40
#define ID_AA64ISAR1_SB_SHIFT 36
#define ID_AA64ISAR1_FRINTTS_SHIFT 32
#define ID_AA64ISAR1_GPI_SHIFT 28
@@ -605,12 +626,20 @@
#define ID_AA64PFR1_SSBS_PSTATE_INSNS 2
/* id_aa64zfr0 */
+#define ID_AA64ZFR0_F64MM_SHIFT 56
+#define ID_AA64ZFR0_F32MM_SHIFT 52
+#define ID_AA64ZFR0_I8MM_SHIFT 44
#define ID_AA64ZFR0_SM4_SHIFT 40
#define ID_AA64ZFR0_SHA3_SHIFT 32
+#define ID_AA64ZFR0_BF16_SHIFT 20
#define ID_AA64ZFR0_BITPERM_SHIFT 16
#define ID_AA64ZFR0_AES_SHIFT 4
#define ID_AA64ZFR0_SVEVER_SHIFT 0
+#define ID_AA64ZFR0_F64MM 0x1
+#define ID_AA64ZFR0_F32MM 0x1
+#define ID_AA64ZFR0_I8MM 0x1
+#define ID_AA64ZFR0_BF16 0x1
#define ID_AA64ZFR0_SM4 0x1
#define ID_AA64ZFR0_SHA3 0x1
#define ID_AA64ZFR0_BITPERM 0x1
@@ -655,6 +684,7 @@
#define ID_AA64MMFR1_VMIDBITS_16 2
/* id_aa64mmfr2 */
+#define ID_AA64MMFR2_E0PD_SHIFT 60
#define ID_AA64MMFR2_FWB_SHIFT 40
#define ID_AA64MMFR2_AT_SHIFT 32
#define ID_AA64MMFR2_LVA_SHIFT 16
@@ -679,6 +709,14 @@
#define ID_ISAR5_AES_SHIFT 4
#define ID_ISAR5_SEVL_SHIFT 0
+#define ID_ISAR6_I8MM_SHIFT 24
+#define ID_ISAR6_BF16_SHIFT 20
+#define ID_ISAR6_SPECRES_SHIFT 16
+#define ID_ISAR6_SB_SHIFT 12
+#define ID_ISAR6_FHM_SHIFT 8
+#define ID_ISAR6_DP_SHIFT 4
+#define ID_ISAR6_JSCVT_SHIFT 0
+
#define MVFR0_FPROUND_SHIFT 28
#define MVFR0_FPSHVEC_SHIFT 24
#define MVFR0_FPSQRT_SHIFT 20
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 2629a68b8724..1dd22da1c3a9 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -38,11 +38,10 @@
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5)
#define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800)
-#define __NR_compat_syscalls 436
+#define __NR_compat_syscalls 439
#endif
#define __ARCH_WANT_SYS_CLONE
-#define __ARCH_WANT_SYS_CLONE3
#ifndef __COMPAT_SYSCALL_NR
#include <uapi/asm/unistd.h>
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 94ab29cf4f00..c1c61635f89c 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -879,6 +879,10 @@ __SYSCALL(__NR_fspick, sys_fspick)
__SYSCALL(__NR_pidfd_open, sys_pidfd_open)
#define __NR_clone3 435
__SYSCALL(__NR_clone3, sys_clone3)
+#define __NR_openat2 437
+__SYSCALL(__NR_openat2, sys_openat2)
+#define __NR_pidfd_getfd 438
+__SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
/*
* Please add new compat syscalls above this comment and update
diff --git a/arch/arm64/include/asm/vdso/compat_gettimeofday.h b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
index c50ee1b7d5cd..537b1e695365 100644
--- a/arch/arm64/include/asm/vdso/compat_gettimeofday.h
+++ b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
@@ -16,7 +16,7 @@
#define VDSO_HAS_CLOCK_GETRES 1
-#define VDSO_HAS_32BIT_FALLBACK 1
+#define BUILD_VDSO32 1
static __always_inline
int gettimeofday_fallback(struct __kernel_old_timeval *_tv,
diff --git a/arch/arm64/include/asm/vmalloc.h b/arch/arm64/include/asm/vmalloc.h
new file mode 100644
index 000000000000..2ca708ab9b20
--- /dev/null
+++ b/arch/arm64/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_ARM64_VMALLOC_H
+#define _ASM_ARM64_VMALLOC_H
+
+#endif /* _ASM_ARM64_VMALLOC_H */
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index a1e72886b30c..7752d93bb50f 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -65,5 +65,13 @@
#define HWCAP2_SVESM4 (1 << 6)
#define HWCAP2_FLAGM2 (1 << 7)
#define HWCAP2_FRINT (1 << 8)
+#define HWCAP2_SVEI8MM (1 << 9)
+#define HWCAP2_SVEF32MM (1 << 10)
+#define HWCAP2_SVEF64MM (1 << 11)
+#define HWCAP2_SVEBF16 (1 << 12)
+#define HWCAP2_I8MM (1 << 13)
+#define HWCAP2_BF16 (1 << 14)
+#define HWCAP2_DGH (1 << 15)
+#define HWCAP2_RNG (1 << 16)
#endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/include/uapi/asm/unistd.h b/arch/arm64/include/uapi/asm/unistd.h
index 4703d218663a..f83a70e07df8 100644
--- a/arch/arm64/include/uapi/asm/unistd.h
+++ b/arch/arm64/include/uapi/asm/unistd.h
@@ -19,5 +19,6 @@
#define __ARCH_WANT_NEW_STAT
#define __ARCH_WANT_SET_GET_RLIMIT
#define __ARCH_WANT_TIME32_SYSCALLS
+#define __ARCH_WANT_SYS_CLONE3
#include <asm-generic/unistd.h>
diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index 3a58e9db5cfe..a100483b47c4 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -274,7 +274,7 @@ int apei_claim_sea(struct pt_regs *regs)
if (!IS_ENABLED(CONFIG_ACPI_APEI_GHES))
return err;
- current_flags = arch_local_save_flags();
+ current_flags = local_daif_save_flags();
/*
* SEA can interrupt SError, mask it and describe this as an NMI so
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index ca158be21f83..7832b3216370 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -618,7 +618,8 @@ static struct insn_emulation_ops setend_ops = {
};
/*
- * Invoked as late_initcall, since not needed before init spawned.
+ * Invoked as core_initcall, which guarantees that the instruction
+ * emulation is ready for userspace.
*/
static int __init armv8_deprecated_init(void)
{
diff --git a/arch/arm64/kernel/cpu-reset.S b/arch/arm64/kernel/cpu-reset.S
index 6ea337d464c4..32c7bf858dd9 100644
--- a/arch/arm64/kernel/cpu-reset.S
+++ b/arch/arm64/kernel/cpu-reset.S
@@ -42,11 +42,11 @@ ENTRY(__cpu_soft_restart)
mov x0, #HVC_SOFT_RESTART
hvc #0 // no return
-1: mov x18, x1 // entry
+1: mov x8, x1 // entry
mov x0, x2 // arg0
mov x1, x3 // arg1
mov x2, x4 // arg2
- br x18
+ br x8
ENDPROC(__cpu_soft_restart)
.popsection
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 6a09ca7644ea..703ad0a84f99 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -547,6 +547,9 @@ static const struct midr_range spectre_v2_safe_list[] = {
MIDR_ALL_VERSIONS(MIDR_CORTEX_A53),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53),
+ MIDR_ALL_VERSIONS(MIDR_HISI_TSV110),
+ MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_3XX_SILVER),
+ MIDR_ALL_VERSIONS(MIDR_QCOM_KRYO_4XX_SILVER),
{ /* sentinel */ }
};
@@ -756,6 +759,20 @@ static const struct arm64_cpu_capabilities erratum_843419_list[] = {
};
#endif
+#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT_VHE
+static const struct midr_range erratum_speculative_at_vhe_list[] = {
+#ifdef CONFIG_ARM64_ERRATUM_1165522
+ /* Cortex A76 r0p0 to r2p0 */
+ MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
+#endif
+#ifdef CONFIG_ARM64_ERRATUM_1530923
+ /* Cortex A55 r0p0 to r2p0 */
+ MIDR_RANGE(MIDR_CORTEX_A55, 0, 0, 2, 0),
+#endif
+ {},
+};
+#endif
+
const struct arm64_cpu_capabilities arm64_errata[] = {
#ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
{
@@ -882,12 +899,11 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
ERRATA_MIDR_RANGE_LIST(erratum_1418040_list),
},
#endif
-#ifdef CONFIG_ARM64_ERRATUM_1165522
+#ifdef CONFIG_ARM64_WORKAROUND_SPECULATIVE_AT_VHE
{
- /* Cortex-A76 r0p0 to r2p0 */
- .desc = "ARM erratum 1165522",
- .capability = ARM64_WORKAROUND_1165522,
- ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 2, 0),
+ .desc = "ARM errata 1165522, 1530923",
+ .capability = ARM64_WORKAROUND_SPECULATIVE_AT_VHE,
+ ERRATA_MIDR_RANGE_LIST(erratum_speculative_at_vhe_list),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_1463225
@@ -924,7 +940,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
#ifdef CONFIG_ARM64_ERRATUM_1319367
{
.desc = "ARM erratum 1319367",
- .capability = ARM64_WORKAROUND_1319367,
+ .capability = ARM64_WORKAROUND_SPECULATIVE_AT_NVHE,
ERRATA_MIDR_RANGE_LIST(ca57_a72),
},
#endif
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 04cf64e9f0c9..0b6715625cf6 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -32,9 +32,7 @@ static unsigned long elf_hwcap __read_mostly;
#define COMPAT_ELF_HWCAP_DEFAULT \
(COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\
COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\
- COMPAT_HWCAP_TLS|COMPAT_HWCAP_VFP|\
- COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\
- COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV|\
+ COMPAT_HWCAP_TLS|COMPAT_HWCAP_IDIV|\
COMPAT_HWCAP_LPAE)
unsigned int compat_elf_hwcap __read_mostly = COMPAT_ELF_HWCAP_DEFAULT;
unsigned int compat_elf_hwcap2 __read_mostly;
@@ -47,19 +45,23 @@ static struct arm64_cpu_capabilities const __ro_after_init *cpu_hwcaps_ptrs[ARM6
/* Need also bit for ARM64_CB_PATCH */
DECLARE_BITMAP(boot_capabilities, ARM64_NPATCHABLE);
+bool arm64_use_ng_mappings = false;
+EXPORT_SYMBOL(arm64_use_ng_mappings);
+
/*
* Flag to indicate if we have computed the system wide
* capabilities based on the boot time active CPUs. This
* will be used to determine if a new booting CPU should
* go through the verification process to make sure that it
* supports the system capabilities, without using a hotplug
- * notifier.
+ * notifier. This is also used to decide if we could use
+ * the fast path for checking constant CPU caps.
*/
-static bool sys_caps_initialised;
-
-static inline void set_sys_caps_initialised(void)
+DEFINE_STATIC_KEY_FALSE(arm64_const_caps_ready);
+EXPORT_SYMBOL(arm64_const_caps_ready);
+static inline void finalize_system_capabilities(void)
{
- sys_caps_initialised = true;
+ static_branch_enable(&arm64_const_caps_ready);
}
static int dump_cpu_hwcaps(struct notifier_block *self, unsigned long v, void *p)
@@ -119,6 +121,7 @@ static void cpu_enable_cnp(struct arm64_cpu_capabilities const *cap);
* sync with the documentation of the CPU feature register ABI.
*/
static const struct arm64_ftr_bits ftr_id_aa64isar0[] = {
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_RNDR_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_TS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_FHM_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_DP_SHIFT, 4, 0),
@@ -135,6 +138,10 @@ static const struct arm64_ftr_bits ftr_id_aa64isar0[] = {
};
static const struct arm64_ftr_bits ftr_id_aa64isar1[] = {
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR1_I8MM_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR1_DGH_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR1_BF16_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR1_SPECRES_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR1_SB_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR1_FRINTTS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_PTR_AUTH),
@@ -177,10 +184,18 @@ static const struct arm64_ftr_bits ftr_id_aa64pfr1[] = {
static const struct arm64_ftr_bits ftr_id_aa64zfr0[] = {
ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
+ FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_F64MM_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
+ FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_F32MM_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
+ FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_I8MM_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_SM4_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_SHA3_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
+ FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_BF16_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_BITPERM_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE),
FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ZFR0_AES_SHIFT, 4, 0),
@@ -225,6 +240,7 @@ static const struct arm64_ftr_bits ftr_id_aa64mmfr1[] = {
};
static const struct arm64_ftr_bits ftr_id_aa64mmfr2[] = {
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_E0PD_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_FWB_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_AT_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64MMFR2_LVA_SHIFT, 4, 0),
@@ -313,6 +329,17 @@ static const struct arm64_ftr_bits ftr_id_mmfr4[] = {
ARM64_FTR_END,
};
+static const struct arm64_ftr_bits ftr_id_isar6[] = {
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_I8MM_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_BF16_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_SPECRES_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_SB_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_FHM_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_DP_SHIFT, 4, 0),
+ ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR6_JSCVT_SHIFT, 4, 0),
+ ARM64_FTR_END,
+};
+
static const struct arm64_ftr_bits ftr_id_pfr0[] = {
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 12, 4, 0), /* State3 */
ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, 8, 4, 0), /* State2 */
@@ -396,6 +423,7 @@ static const struct __ftr_reg_entry {
ARM64_FTR_REG(SYS_ID_ISAR4_EL1, ftr_generic_32bits),
ARM64_FTR_REG(SYS_ID_ISAR5_EL1, ftr_id_isar5),
ARM64_FTR_REG(SYS_ID_MMFR4_EL1, ftr_id_mmfr4),
+ ARM64_FTR_REG(SYS_ID_ISAR6_EL1, ftr_id_isar6),
/* Op1 = 0, CRn = 0, CRm = 3 */
ARM64_FTR_REG(SYS_MVFR0_EL1, ftr_generic_32bits),
@@ -600,6 +628,7 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info)
init_cpu_ftr_reg(SYS_ID_ISAR3_EL1, info->reg_id_isar3);
init_cpu_ftr_reg(SYS_ID_ISAR4_EL1, info->reg_id_isar4);
init_cpu_ftr_reg(SYS_ID_ISAR5_EL1, info->reg_id_isar5);
+ init_cpu_ftr_reg(SYS_ID_ISAR6_EL1, info->reg_id_isar6);
init_cpu_ftr_reg(SYS_ID_MMFR0_EL1, info->reg_id_mmfr0);
init_cpu_ftr_reg(SYS_ID_MMFR1_EL1, info->reg_id_mmfr1);
init_cpu_ftr_reg(SYS_ID_MMFR2_EL1, info->reg_id_mmfr2);
@@ -753,6 +782,8 @@ void update_cpu_features(int cpu,
info->reg_id_isar4, boot->reg_id_isar4);
taint |= check_update_ftr_reg(SYS_ID_ISAR5_EL1, cpu,
info->reg_id_isar5, boot->reg_id_isar5);
+ taint |= check_update_ftr_reg(SYS_ID_ISAR6_EL1, cpu,
+ info->reg_id_isar6, boot->reg_id_isar6);
/*
* Regardless of the value of the AuxReg field, the AIFSR, ADFSR, and
@@ -785,7 +816,7 @@ void update_cpu_features(int cpu,
/* Probe vector lengths, unless we already gave up on SVE */
if (id_aa64pfr0_sve(read_sanitised_ftr_reg(SYS_ID_AA64PFR0_EL1)) &&
- !sys_caps_initialised)
+ !system_capabilities_finalized())
sve_update_vq_map();
}
@@ -831,6 +862,7 @@ static u64 __read_sysreg_by_encoding(u32 sys_id)
read_sysreg_case(SYS_ID_ISAR3_EL1);
read_sysreg_case(SYS_ID_ISAR4_EL1);
read_sysreg_case(SYS_ID_ISAR5_EL1);
+ read_sysreg_case(SYS_ID_ISAR6_EL1);
read_sysreg_case(SYS_MVFR0_EL1);
read_sysreg_case(SYS_MVFR1_EL1);
read_sysreg_case(SYS_MVFR2_EL1);
@@ -965,6 +997,46 @@ has_useable_cnp(const struct arm64_cpu_capabilities *entry, int scope)
return has_cpuid_feature(entry, scope);
}
+/*
+ * This check is triggered during the early boot before the cpufeature
+ * is initialised. Checking the status on the local CPU allows the boot
+ * CPU to detect the need for non-global mappings and thus avoiding a
+ * pagetable re-write after all the CPUs are booted. This check will be
+ * anyway run on individual CPUs, allowing us to get the consistent
+ * state once the SMP CPUs are up and thus make the switch to non-global
+ * mappings if required.
+ */
+bool kaslr_requires_kpti(void)
+{
+ if (!IS_ENABLED(CONFIG_RANDOMIZE_BASE))
+ return false;
+
+ /*
+ * E0PD does a similar job to KPTI so can be used instead
+ * where available.
+ */
+ if (IS_ENABLED(CONFIG_ARM64_E0PD)) {
+ u64 mmfr2 = read_sysreg_s(SYS_ID_AA64MMFR2_EL1);
+ if (cpuid_feature_extract_unsigned_field(mmfr2,
+ ID_AA64MMFR2_E0PD_SHIFT))
+ return false;
+ }
+
+ /*
+ * Systems affected by Cavium erratum 24756 are incompatible
+ * with KPTI.
+ */
+ if (IS_ENABLED(CONFIG_CAVIUM_ERRATUM_27456)) {
+ extern const struct midr_range cavium_erratum_27456_cpus[];
+
+ if (is_midr_in_range_list(read_cpuid_id(),
+ cavium_erratum_27456_cpus))
+ return false;
+ }
+
+ return kaslr_offset() > 0;
+}
+
static bool __meltdown_safe = true;
static int __kpti_forced; /* 0: not forced, >0: forced on, <0: forced off */
@@ -975,6 +1047,7 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
static const struct midr_range kpti_safe_list[] = {
MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
MIDR_ALL_VERSIONS(MIDR_BRCM_VULCAN),
+ MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A35),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A53),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
@@ -1008,7 +1081,7 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry,
}
/* Useful for KASLR robustness */
- if (IS_ENABLED(CONFIG_RANDOMIZE_BASE) && kaslr_offset() > 0) {
+ if (kaslr_requires_kpti()) {
if (!__kpti_forced) {
str = "KASLR";
__kpti_forced = 1;
@@ -1043,7 +1116,6 @@ kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
extern kpti_remap_fn idmap_kpti_install_ng_mappings;
kpti_remap_fn *remap_fn;
- static bool kpti_applied = false;
int cpu = smp_processor_id();
/*
@@ -1051,7 +1123,7 @@ kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
* it already or we have KASLR enabled and therefore have not
* created any global mappings at all.
*/
- if (kpti_applied || kaslr_offset() > 0)
+ if (arm64_use_ng_mappings)
return;
remap_fn = (void *)__pa_symbol(idmap_kpti_install_ng_mappings);
@@ -1061,7 +1133,7 @@ kpti_install_ng_mappings(const struct arm64_cpu_capabilities *__unused)
cpu_uninstall_idmap();
if (!cpu)
- kpti_applied = true;
+ arm64_use_ng_mappings = true;
return;
}
@@ -1251,6 +1323,14 @@ static void cpu_enable_address_auth(struct arm64_cpu_capabilities const *cap)
}
#endif /* CONFIG_ARM64_PTR_AUTH */
+#ifdef CONFIG_ARM64_E0PD
+static void cpu_enable_e0pd(struct arm64_cpu_capabilities const *cap)
+{
+ if (this_cpu_has_cap(ARM64_HAS_E0PD))
+ sysreg_clear_set(tcr_el1, 0, TCR_E0PD1);
+}
+#endif /* CONFIG_ARM64_E0PD */
+
#ifdef CONFIG_ARM64_PSEUDO_NMI
static bool enable_pseudo_nmi;
@@ -1291,7 +1371,7 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.cpu_enable = cpu_enable_pan,
},
#endif /* CONFIG_ARM64_PAN */
-#if defined(CONFIG_AS_LSE) && defined(CONFIG_ARM64_LSE_ATOMICS)
+#ifdef CONFIG_ARM64_LSE_ATOMICS
{
.desc = "LSE atomic instructions",
.capability = ARM64_HAS_LSE_ATOMICS,
@@ -1302,7 +1382,7 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.sign = FTR_UNSIGNED,
.min_field_value = 2,
},
-#endif /* CONFIG_AS_LSE && CONFIG_ARM64_LSE_ATOMICS */
+#endif /* CONFIG_ARM64_LSE_ATOMICS */
{
.desc = "Software prefetching using PRFM",
.capability = ARM64_HAS_NO_HW_PREFETCH,
@@ -1368,7 +1448,7 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
{
/* FP/SIMD is not implemented */
.capability = ARM64_HAS_NO_FPSIMD,
- .type = ARM64_CPUCAP_SYSTEM_FEATURE,
+ .type = ARM64_CPUCAP_BOOT_RESTRICTED_CPU_LOCAL_FEATURE,
.min_field_value = 0,
.matches = has_no_fpsimd,
},
@@ -1567,6 +1647,31 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.min_field_value = 1,
},
#endif
+#ifdef CONFIG_ARM64_E0PD
+ {
+ .desc = "E0PD",
+ .capability = ARM64_HAS_E0PD,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
+ .sys_reg = SYS_ID_AA64MMFR2_EL1,
+ .sign = FTR_UNSIGNED,
+ .field_pos = ID_AA64MMFR2_E0PD_SHIFT,
+ .matches = has_cpuid_feature,
+ .min_field_value = 1,
+ .cpu_enable = cpu_enable_e0pd,
+ },
+#endif
+#ifdef CONFIG_ARCH_RANDOM
+ {
+ .desc = "Random Number Generator",
+ .capability = ARM64_HAS_RNG,
+ .type = ARM64_CPUCAP_SYSTEM_FEATURE,
+ .matches = has_cpuid_feature,
+ .sys_reg = SYS_ID_AA64ISAR0_EL1,
+ .field_pos = ID_AA64ISAR0_RNDR_SHIFT,
+ .sign = FTR_UNSIGNED,
+ .min_field_value = 1,
+ },
+#endif
{},
};
@@ -1596,6 +1701,12 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.match_list = list, \
}
+#define HWCAP_CAP_MATCH(match, cap_type, cap) \
+ { \
+ __HWCAP_CAP(#cap, cap_type, cap) \
+ .matches = match, \
+ }
+
#ifdef CONFIG_ARM64_PTR_AUTH
static const struct arm64_cpu_capabilities ptr_auth_hwcap_addr_matches[] = {
{
@@ -1638,6 +1749,7 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_FHM_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_ASIMDFHM),
HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_TS_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_FLAGM),
HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_TS_SHIFT, FTR_UNSIGNED, 2, CAP_HWCAP, KERNEL_HWCAP_FLAGM2),
+ HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_RNDR_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_RNG),
HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_FP_SHIFT, FTR_SIGNED, 0, CAP_HWCAP, KERNEL_HWCAP_FP),
HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_FP_SHIFT, FTR_SIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_FPHP),
HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_ASIMD_SHIFT, FTR_SIGNED, 0, CAP_HWCAP, KERNEL_HWCAP_ASIMD),
@@ -1651,6 +1763,9 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_LRCPC_SHIFT, FTR_UNSIGNED, 2, CAP_HWCAP, KERNEL_HWCAP_ILRCPC),
HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_FRINTTS_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_FRINT),
HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_SB_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_SB),
+ HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_BF16_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_BF16),
+ HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_DGH_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_DGH),
+ HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_I8MM_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_I8MM),
HWCAP_CAP(SYS_ID_AA64MMFR2_EL1, ID_AA64MMFR2_AT_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, KERNEL_HWCAP_USCAT),
#ifdef CONFIG_ARM64_SVE
HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_SVE_SHIFT, FTR_UNSIGNED, ID_AA64PFR0_SVE, CAP_HWCAP, KERNEL_HWCAP_SVE),
@@ -1658,8 +1773,12 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_AES_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_AES, CAP_HWCAP, KERNEL_HWCAP_SVEAES),
HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_AES_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_AES_PMULL, CAP_HWCAP, KERNEL_HWCAP_SVEPMULL),
HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_BITPERM_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_BITPERM, CAP_HWCAP, KERNEL_HWCAP_SVEBITPERM),
+ HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_BF16_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_BF16, CAP_HWCAP, KERNEL_HWCAP_SVEBF16),
HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_SHA3_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_SHA3, CAP_HWCAP, KERNEL_HWCAP_SVESHA3),
HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_SM4_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_SM4, CAP_HWCAP, KERNEL_HWCAP_SVESM4),
+ HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_I8MM_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_I8MM, CAP_HWCAP, KERNEL_HWCAP_SVEI8MM),
+ HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_F32MM_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_F32MM, CAP_HWCAP, KERNEL_HWCAP_SVEF32MM),
+ HWCAP_CAP(SYS_ID_AA64ZFR0_EL1, ID_AA64ZFR0_F64MM_SHIFT, FTR_UNSIGNED, ID_AA64ZFR0_F64MM, CAP_HWCAP, KERNEL_HWCAP_SVEF64MM),
#endif
HWCAP_CAP(SYS_ID_AA64PFR1_EL1, ID_AA64PFR1_SSBS_SHIFT, FTR_UNSIGNED, ID_AA64PFR1_SSBS_PSTATE_INSNS, CAP_HWCAP, KERNEL_HWCAP_SSBS),
#ifdef CONFIG_ARM64_PTR_AUTH
@@ -1669,8 +1788,35 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = {
{},
};
+#ifdef CONFIG_COMPAT
+static bool compat_has_neon(const struct arm64_cpu_capabilities *cap, int scope)
+{
+ /*
+ * Check that all of MVFR1_EL1.{SIMDSP, SIMDInt, SIMDLS} are available,
+ * in line with that of arm32 as in vfp_init(). We make sure that the
+ * check is future proof, by making sure value is non-zero.
+ */
+ u32 mvfr1;
+
+ WARN_ON(scope == SCOPE_LOCAL_CPU && preemptible());
+ if (scope == SCOPE_SYSTEM)
+ mvfr1 = read_sanitised_ftr_reg(SYS_MVFR1_EL1);
+ else
+ mvfr1 = read_sysreg_s(SYS_MVFR1_EL1);
+
+ return cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_SIMDSP_SHIFT) &&
+ cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_SIMDINT_SHIFT) &&
+ cpuid_feature_extract_unsigned_field(mvfr1, MVFR1_SIMDLS_SHIFT);
+}
+#endif
+
static const struct arm64_cpu_capabilities compat_elf_hwcaps[] = {
#ifdef CONFIG_COMPAT
+ HWCAP_CAP_MATCH(compat_has_neon, CAP_COMPAT_HWCAP, COMPAT_HWCAP_NEON),
+ HWCAP_CAP(SYS_MVFR1_EL1, MVFR1_SIMDFMAC_SHIFT, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFPv4),
+ /* Arm v8 mandates MVFR0.FPDP == {0, 2}. So, piggy back on this for the presence of VFP support */
+ HWCAP_CAP(SYS_MVFR0_EL1, MVFR0_FPDP_SHIFT, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFP),
+ HWCAP_CAP(SYS_MVFR0_EL1, MVFR0_FPDP_SHIFT, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP, COMPAT_HWCAP_VFPv3),
HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_AES_SHIFT, FTR_UNSIGNED, 2, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_PMULL),
HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_AES_SHIFT, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_AES),
HWCAP_CAP(SYS_ID_ISAR5_EL1, ID_ISAR5_SHA1_SHIFT, FTR_UNSIGNED, 1, CAP_COMPAT_HWCAP2, COMPAT_HWCAP2_SHA1),
@@ -1974,7 +2120,7 @@ void check_local_cpu_capabilities(void)
* Otherwise, this CPU should verify that it has all the system
* advertised capabilities.
*/
- if (!sys_caps_initialised)
+ if (!system_capabilities_finalized())
update_cpu_capabilities(SCOPE_LOCAL_CPU);
else
verify_local_cpu_capabilities();
@@ -1988,14 +2134,6 @@ static void __init setup_boot_cpu_capabilities(void)
enable_cpu_capabilities(SCOPE_BOOT_CPU);
}
-DEFINE_STATIC_KEY_FALSE(arm64_const_caps_ready);
-EXPORT_SYMBOL(arm64_const_caps_ready);
-
-static void __init mark_const_caps_ready(void)
-{
- static_branch_enable(&arm64_const_caps_ready);
-}
-
bool this_cpu_has_cap(unsigned int n)
{
if (!WARN_ON(preemptible()) && n < ARM64_NCAPS) {
@@ -2054,7 +2192,6 @@ void __init setup_cpu_features(void)
u32 cwg;
setup_system_capabilities();
- mark_const_caps_ready();
setup_elf_hwcaps(arm64_elf_hwcaps);
if (system_supports_32bit_el0())
@@ -2067,7 +2204,7 @@ void __init setup_cpu_features(void)
minsigstksz_setup();
/* Advertise that we have computed the system capabilities */
- set_sys_caps_initialised();
+ finalize_system_capabilities();
/*
* Check for sane CTR_EL0.CWG value.
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 56bba746da1c..86136075ae41 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -84,6 +84,14 @@ static const char *const hwcap_str[] = {
"svesm4",
"flagm2",
"frint",
+ "svei8mm",
+ "svef32mm",
+ "svef64mm",
+ "svebf16",
+ "i8mm",
+ "bf16",
+ "dgh",
+ "rng",
NULL
};
@@ -360,6 +368,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info)
info->reg_id_isar3 = read_cpuid(ID_ISAR3_EL1);
info->reg_id_isar4 = read_cpuid(ID_ISAR4_EL1);
info->reg_id_isar5 = read_cpuid(ID_ISAR5_EL1);
+ info->reg_id_isar6 = read_cpuid(ID_ISAR6_EL1);
info->reg_id_mmfr0 = read_cpuid(ID_MMFR0_EL1);
info->reg_id_mmfr1 = read_cpuid(ID_MMFR1_EL1);
info->reg_id_mmfr2 = read_cpuid(ID_MMFR2_EL1);
diff --git a/arch/arm64/kernel/entry-common.c b/arch/arm64/kernel/entry-common.c
index 5dce5e56995a..fde59981445c 100644
--- a/arch/arm64/kernel/entry-common.c
+++ b/arch/arm64/kernel/entry-common.c
@@ -36,14 +36,14 @@ static void notrace el1_pc(struct pt_regs *regs, unsigned long esr)
}
NOKPROBE_SYMBOL(el1_pc);
-static void el1_undef(struct pt_regs *regs)
+static void notrace el1_undef(struct pt_regs *regs)
{
local_daif_inherit(regs);
do_undefinstr(regs);
}
NOKPROBE_SYMBOL(el1_undef);
-static void el1_inv(struct pt_regs *regs, unsigned long esr)
+static void notrace el1_inv(struct pt_regs *regs, unsigned long esr)
{
local_daif_inherit(regs);
bad_mode(regs, 0, esr);
@@ -215,7 +215,7 @@ static void notrace el0_svc(struct pt_regs *regs)
if (system_uses_irq_prio_masking())
gic_write_pmr(GIC_PRIO_IRQON | GIC_PRIO_PSR_I_SET);
- el0_svc_handler(regs);
+ do_el0_svc(regs);
}
NOKPROBE_SYMBOL(el0_svc);
@@ -281,7 +281,7 @@ static void notrace el0_svc_compat(struct pt_regs *regs)
if (system_uses_irq_prio_masking())
gic_write_pmr(GIC_PRIO_IRQON | GIC_PRIO_PSR_I_SET);
- el0_svc_compat_handler(regs);
+ do_el0_svc_compat(regs);
}
NOKPROBE_SYMBOL(el0_svc_compat);
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 7c6a0a41676f..9461d812ae27 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -60,16 +60,16 @@
.macro kernel_ventry, el, label, regsize = 64
.align 7
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-alternative_if ARM64_UNMAP_KERNEL_AT_EL0
.if \el == 0
+alternative_if ARM64_UNMAP_KERNEL_AT_EL0
.if \regsize == 64
mrs x30, tpidrro_el0
msr tpidrro_el0, xzr
.else
mov x30, xzr
.endif
- .endif
alternative_else_nop_endif
+ .endif
#endif
sub sp, sp, #S_FRAME_SIZE
@@ -167,9 +167,13 @@ alternative_cb_end
.if \el == 0
clear_gp_regs
mrs x21, sp_el0
- ldr_this_cpu tsk, __entry_task, x20 // Ensure MDSCR_EL1.SS is clear,
- ldr x19, [tsk, #TSK_TI_FLAGS] // since we can unmask debug
- disable_step_tsk x19, x20 // exceptions when scheduling.
+ ldr_this_cpu tsk, __entry_task, x20
+ msr sp_el0, tsk
+
+ // Ensure MDSCR_EL1.SS is clear, since we can unmask debug exceptions
+ // when scheduling.
+ ldr x19, [tsk, #TSK_TI_FLAGS]
+ disable_step_tsk x19, x20
apply_ssbd 1, x22, x23
@@ -232,13 +236,6 @@ alternative_else_nop_endif
str w21, [sp, #S_SYSCALLNO]
.endif
- /*
- * Set sp_el0 to current thread_info.
- */
- .if \el == 0
- msr sp_el0, tsk
- .endif
-
/* Save pmr */
alternative_if ARM64_HAS_IRQ_PRIO_MASKING
mrs_s x20, SYS_ICC_PMR_EL1
@@ -605,7 +602,7 @@ el1_irq:
irq_handler
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
ldr x24, [tsk, #TSK_TI_PREEMPT] // get preempt count
alternative_if ARM64_HAS_IRQ_PRIO_MASKING
/*
@@ -653,6 +650,7 @@ el0_sync:
mov x0, sp
bl el0_sync_handler
b ret_to_user
+ENDPROC(el0_sync)
#ifdef CONFIG_COMPAT
.align 6
@@ -661,16 +659,18 @@ el0_sync_compat:
mov x0, sp
bl el0_sync_compat_handler
b ret_to_user
-ENDPROC(el0_sync)
+ENDPROC(el0_sync_compat)
.align 6
el0_irq_compat:
kernel_entry 0, 32
b el0_irq_naked
+ENDPROC(el0_irq_compat)
el0_error_compat:
kernel_entry 0, 32
b el0_error_naked
+ENDPROC(el0_error_compat)
#endif
.align 6
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 3eb338f14386..94289d126993 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -269,6 +269,7 @@ static void sve_free(struct task_struct *task)
*/
static void task_fpsimd_load(void)
{
+ WARN_ON(!system_supports_fpsimd());
WARN_ON(!have_cpu_fpsimd_context());
if (system_supports_sve() && test_thread_flag(TIF_SVE))
@@ -289,6 +290,7 @@ static void fpsimd_save(void)
this_cpu_ptr(&fpsimd_last_state);
/* set by fpsimd_bind_task_to_cpu() or fpsimd_bind_state_to_cpu() */
+ WARN_ON(!system_supports_fpsimd());
WARN_ON(!have_cpu_fpsimd_context());
if (!test_thread_flag(TIF_FOREIGN_FPSTATE)) {
@@ -1092,6 +1094,7 @@ void fpsimd_bind_task_to_cpu(void)
struct fpsimd_last_state_struct *last =
this_cpu_ptr(&fpsimd_last_state);
+ WARN_ON(!system_supports_fpsimd());
last->st = &current->thread.uw.fpsimd_state;
last->sve_state = current->thread.sve_state;
last->sve_vl = current->thread.sve_vl;
@@ -1114,6 +1117,7 @@ void fpsimd_bind_state_to_cpu(struct user_fpsimd_state *st, void *sve_state,
struct fpsimd_last_state_struct *last =
this_cpu_ptr(&fpsimd_last_state);
+ WARN_ON(!system_supports_fpsimd());
WARN_ON(!in_softirq() && !irqs_disabled());
last->st = st;
@@ -1128,8 +1132,19 @@ void fpsimd_bind_state_to_cpu(struct user_fpsimd_state *st, void *sve_state,
*/
void fpsimd_restore_current_state(void)
{
- if (!system_supports_fpsimd())
+ /*
+ * For the tasks that were created before we detected the absence of
+ * FP/SIMD, the TIF_FOREIGN_FPSTATE could be set via fpsimd_thread_switch(),
+ * e.g, init. This could be then inherited by the children processes.
+ * If we later detect that the system doesn't support FP/SIMD,
+ * we must clear the flag for all the tasks to indicate that the
+ * FPSTATE is clean (as we can't have one) to avoid looping for ever in
+ * do_notify_resume().
+ */
+ if (!system_supports_fpsimd()) {
+ clear_thread_flag(TIF_FOREIGN_FPSTATE);
return;
+ }
get_cpu_fpsimd_context();
@@ -1148,7 +1163,7 @@ void fpsimd_restore_current_state(void)
*/
void fpsimd_update_current_state(struct user_fpsimd_state const *state)
{
- if (!system_supports_fpsimd())
+ if (WARN_ON(!system_supports_fpsimd()))
return;
get_cpu_fpsimd_context();
@@ -1179,7 +1194,13 @@ void fpsimd_update_current_state(struct user_fpsimd_state const *state)
void fpsimd_flush_task_state(struct task_struct *t)
{
t->thread.fpsimd_cpu = NR_CPUS;
-
+ /*
+ * If we don't support fpsimd, bail out after we have
+ * reset the fpsimd_cpu for this task and clear the
+ * FPSTATE.
+ */
+ if (!system_supports_fpsimd())
+ return;
barrier();
set_tsk_thread_flag(t, TIF_FOREIGN_FPSTATE);
@@ -1193,6 +1214,7 @@ void fpsimd_flush_task_state(struct task_struct *t)
*/
static void fpsimd_flush_cpu_state(void)
{
+ WARN_ON(!system_supports_fpsimd());
__this_cpu_write(fpsimd_last_state.st, NULL);
set_thread_flag(TIF_FOREIGN_FPSTATE);
}
@@ -1203,6 +1225,8 @@ static void fpsimd_flush_cpu_state(void)
*/
void fpsimd_save_and_flush_cpu_state(void)
{
+ if (!system_supports_fpsimd())
+ return;
WARN_ON(preemptible());
__get_cpu_fpsimd_context();
fpsimd_save();
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c
index a96b2921d22c..590963c9c609 100644
--- a/arch/arm64/kernel/hibernate.c
+++ b/arch/arm64/kernel/hibernate.c
@@ -182,78 +182,79 @@ int arch_hibernation_header_restore(void *addr)
}
EXPORT_SYMBOL(arch_hibernation_header_restore);
-/*
- * Copies length bytes, starting at src_start into an new page,
- * perform cache maintentance, then maps it at the specified address low
- * address as executable.
- *
- * This is used by hibernate to copy the code it needs to execute when
- * overwriting the kernel text. This function generates a new set of page
- * tables, which it loads into ttbr0.
- *
- * Length is provided as we probably only want 4K of data, even on a 64K
- * page system.
- */
-static int create_safe_exec_page(void *src_start, size_t length,
- unsigned long dst_addr,
- phys_addr_t *phys_dst_addr,
- void *(*allocator)(gfp_t mask),
- gfp_t mask)
+static int trans_pgd_map_page(pgd_t *trans_pgd, void *page,
+ unsigned long dst_addr,
+ pgprot_t pgprot)
{
- int rc = 0;
- pgd_t *trans_pgd;
pgd_t *pgdp;
pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep;
- unsigned long dst = (unsigned long)allocator(mask);
-
- if (!dst) {
- rc = -ENOMEM;
- goto out;
- }
-
- memcpy((void *)dst, src_start, length);
- __flush_icache_range(dst, dst + length);
-
- trans_pgd = allocator(mask);
- if (!trans_pgd) {
- rc = -ENOMEM;
- goto out;
- }
pgdp = pgd_offset_raw(trans_pgd, dst_addr);
if (pgd_none(READ_ONCE(*pgdp))) {
- pudp = allocator(mask);
- if (!pudp) {
- rc = -ENOMEM;
- goto out;
- }
+ pudp = (void *)get_safe_page(GFP_ATOMIC);
+ if (!pudp)
+ return -ENOMEM;
pgd_populate(&init_mm, pgdp, pudp);
}
pudp = pud_offset(pgdp, dst_addr);
if (pud_none(READ_ONCE(*pudp))) {
- pmdp = allocator(mask);
- if (!pmdp) {
- rc = -ENOMEM;
- goto out;
- }
+ pmdp = (void *)get_safe_page(GFP_ATOMIC);
+ if (!pmdp)
+ return -ENOMEM;
pud_populate(&init_mm, pudp, pmdp);
}
pmdp = pmd_offset(pudp, dst_addr);
if (pmd_none(READ_ONCE(*pmdp))) {
- ptep = allocator(mask);
- if (!ptep) {
- rc = -ENOMEM;
- goto out;
- }
+ ptep = (void *)get_safe_page(GFP_ATOMIC);
+ if (!ptep)
+ return -ENOMEM;
pmd_populate_kernel(&init_mm, pmdp, ptep);
}
ptep = pte_offset_kernel(pmdp, dst_addr);
- set_pte(ptep, pfn_pte(virt_to_pfn(dst), PAGE_KERNEL_EXEC));
+ set_pte(ptep, pfn_pte(virt_to_pfn(page), PAGE_KERNEL_EXEC));
+
+ return 0;
+}
+
+/*
+ * Copies length bytes, starting at src_start into an new page,
+ * perform cache maintenance, then maps it at the specified address low
+ * address as executable.
+ *
+ * This is used by hibernate to copy the code it needs to execute when
+ * overwriting the kernel text. This function generates a new set of page
+ * tables, which it loads into ttbr0.
+ *
+ * Length is provided as we probably only want 4K of data, even on a 64K
+ * page system.
+ */
+static int create_safe_exec_page(void *src_start, size_t length,
+ unsigned long dst_addr,
+ phys_addr_t *phys_dst_addr)
+{
+ void *page = (void *)get_safe_page(GFP_ATOMIC);
+ pgd_t *trans_pgd;
+ int rc;
+
+ if (!page)
+ return -ENOMEM;
+
+ memcpy(page, src_start, length);
+ __flush_icache_range((unsigned long)page, (unsigned long)page + length);
+
+ trans_pgd = (void *)get_safe_page(GFP_ATOMIC);
+ if (!trans_pgd)
+ return -ENOMEM;
+
+ rc = trans_pgd_map_page(trans_pgd, page, dst_addr,
+ PAGE_KERNEL_EXEC);
+ if (rc)
+ return rc;
/*
* Load our new page tables. A strict BBM approach requires that we
@@ -269,13 +270,12 @@ static int create_safe_exec_page(void *src_start, size_t length,
*/
cpu_set_reserved_ttbr0();
local_flush_tlb_all();
- write_sysreg(phys_to_ttbr(virt_to_phys(pgdp)), ttbr0_el1);
+ write_sysreg(phys_to_ttbr(virt_to_phys(trans_pgd)), ttbr0_el1);
isb();
- *phys_dst_addr = virt_to_phys((void *)dst);
+ *phys_dst_addr = virt_to_phys(page);
-out:
- return rc;
+ return 0;
}
#define dcache_clean_range(start, end) __flush_dcache_area(start, (end - start))
@@ -450,7 +450,7 @@ static int copy_pud(pgd_t *dst_pgdp, pgd_t *src_pgdp, unsigned long start,
return -ENOMEM;
} else {
set_pud(dst_pudp,
- __pud(pud_val(pud) & ~PMD_SECT_RDONLY));
+ __pud(pud_val(pud) & ~PUD_SECT_RDONLY));
}
} while (dst_pudp++, src_pudp++, addr = next, addr != end);
@@ -476,6 +476,24 @@ static int copy_page_tables(pgd_t *dst_pgdp, unsigned long start,
return 0;
}
+static int trans_pgd_create_copy(pgd_t **dst_pgdp, unsigned long start,
+ unsigned long end)
+{
+ int rc;
+ pgd_t *trans_pgd = (pgd_t *)get_safe_page(GFP_ATOMIC);
+
+ if (!trans_pgd) {
+ pr_err("Failed to allocate memory for temporary page tables.\n");
+ return -ENOMEM;
+ }
+
+ rc = copy_page_tables(trans_pgd, start, end);
+ if (!rc)
+ *dst_pgdp = trans_pgd;
+
+ return rc;
+}
+
/*
* Setup then Resume from the hibernate image using swsusp_arch_suspend_exit().
*
@@ -484,7 +502,7 @@ static int copy_page_tables(pgd_t *dst_pgdp, unsigned long start,
*/
int swsusp_arch_resume(void)
{
- int rc = 0;
+ int rc;
void *zero_page;
size_t exit_size;
pgd_t *tmp_pg_dir;
@@ -497,15 +515,9 @@ int swsusp_arch_resume(void)
* Create a second copy of just the linear map, and use this when
* restoring.
*/
- tmp_pg_dir = (pgd_t *)get_safe_page(GFP_ATOMIC);
- if (!tmp_pg_dir) {
- pr_err("Failed to allocate memory for temporary page tables.\n");
- rc = -ENOMEM;
- goto out;
- }
- rc = copy_page_tables(tmp_pg_dir, PAGE_OFFSET, PAGE_END);
+ rc = trans_pgd_create_copy(&tmp_pg_dir, PAGE_OFFSET, PAGE_END);
if (rc)
- goto out;
+ return rc;
/*
* We need a zero page that is zero before & after resume in order to
@@ -514,8 +526,7 @@ int swsusp_arch_resume(void)
zero_page = (void *)get_safe_page(GFP_ATOMIC);
if (!zero_page) {
pr_err("Failed to allocate zero page.\n");
- rc = -ENOMEM;
- goto out;
+ return -ENOMEM;
}
/*
@@ -530,11 +541,10 @@ int swsusp_arch_resume(void)
*/
rc = create_safe_exec_page(__hibernate_exit_text_start, exit_size,
(unsigned long)hibernate_exit,
- &phys_hibernate_exit,
- (void *)get_safe_page, GFP_ATOMIC);
+ &phys_hibernate_exit);
if (rc) {
pr_err("Failed to create safe executable page for hibernate_exit code.\n");
- goto out;
+ return rc;
}
/*
@@ -561,8 +571,7 @@ int swsusp_arch_resume(void)
resume_hdr.reenter_kernel, restore_pblist,
resume_hdr.__hyp_stub_vectors, virt_to_phys(zero_page));
-out:
- return rc;
+ return 0;
}
int hibernate_resume_nonboot_cpu_disable(void)
diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c
index 2a11a962e571..53b8a4ee64ff 100644
--- a/arch/arm64/kernel/kaslr.c
+++ b/arch/arm64/kernel/kaslr.c
@@ -120,6 +120,17 @@ u64 __init kaslr_early_init(u64 dt_phys)
return 0;
}
+ /*
+ * Mix in any entropy obtainable architecturally, open coded
+ * since this runs extremely early.
+ */
+ if (__early_cpu_has_rndr()) {
+ unsigned long raw;
+
+ if (__arm64_rndr(&raw))
+ seed ^= raw;
+ }
+
if (!seed) {
kaslr_status = KASLR_DISABLED_NO_SEED;
return 0;
diff --git a/arch/arm64/kernel/kexec_image.c b/arch/arm64/kernel/kexec_image.c
index 29a9428486a5..af9987c154ca 100644
--- a/arch/arm64/kernel/kexec_image.c
+++ b/arch/arm64/kernel/kexec_image.c
@@ -47,10 +47,6 @@ static void *image_load(struct kimage *image,
struct kexec_segment *kernel_segment;
int ret;
- /* We don't support crash kernels yet. */
- if (image->type == KEXEC_TYPE_CRASH)
- return ERR_PTR(-EOPNOTSUPP);
-
/*
* We require a kernel with an unambiguous Image header. Per
* Documentation/arm64/booting.rst, this is the case when image_size
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c
index 0df8493624e0..8e9c924423b4 100644
--- a/arch/arm64/kernel/machine_kexec.c
+++ b/arch/arm64/kernel/machine_kexec.c
@@ -160,18 +160,6 @@ void machine_kexec(struct kimage *kimage)
kexec_image_info(kimage);
- pr_debug("%s:%d: control_code_page: %p\n", __func__, __LINE__,
- kimage->control_code_page);
- pr_debug("%s:%d: reboot_code_buffer_phys: %pa\n", __func__, __LINE__,
- &reboot_code_buffer_phys);
- pr_debug("%s:%d: reboot_code_buffer: %p\n", __func__, __LINE__,
- reboot_code_buffer);
- pr_debug("%s:%d: relocate_new_kernel: %p\n", __func__, __LINE__,
- arm64_relocate_new_kernel);
- pr_debug("%s:%d: relocate_new_kernel_size: 0x%lx(%lu) bytes\n",
- __func__, __LINE__, arm64_relocate_new_kernel_size,
- arm64_relocate_new_kernel_size);
-
/*
* Copy arm64_relocate_new_kernel to the reboot_code_buffer for use
* after the kernel is shut down.
diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c
index 7b08bf9499b6..dd3ae8081b38 100644
--- a/arch/arm64/kernel/machine_kexec_file.c
+++ b/arch/arm64/kernel/machine_kexec_file.c
@@ -17,12 +17,15 @@
#include <linux/memblock.h>
#include <linux/of_fdt.h>
#include <linux/random.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/vmalloc.h>
#include <asm/byteorder.h>
/* relevant device tree properties */
+#define FDT_PROP_KEXEC_ELFHDR "linux,elfcorehdr"
+#define FDT_PROP_MEM_RANGE "linux,usable-memory-range"
#define FDT_PROP_INITRD_START "linux,initrd-start"
#define FDT_PROP_INITRD_END "linux,initrd-end"
#define FDT_PROP_BOOTARGS "bootargs"
@@ -40,6 +43,10 @@ int arch_kimage_file_post_load_cleanup(struct kimage *image)
vfree(image->arch.dtb);
image->arch.dtb = NULL;
+ vfree(image->arch.elf_headers);
+ image->arch.elf_headers = NULL;
+ image->arch.elf_headers_sz = 0;
+
return kexec_image_post_load_cleanup_default(image);
}
@@ -55,6 +62,31 @@ static int setup_dtb(struct kimage *image,
off = ret;
+ ret = fdt_delprop(dtb, off, FDT_PROP_KEXEC_ELFHDR);
+ if (ret && ret != -FDT_ERR_NOTFOUND)
+ goto out;
+ ret = fdt_delprop(dtb, off, FDT_PROP_MEM_RANGE);
+ if (ret && ret != -FDT_ERR_NOTFOUND)
+ goto out;
+
+ if (image->type == KEXEC_TYPE_CRASH) {
+ /* add linux,elfcorehdr */
+ ret = fdt_appendprop_addrrange(dtb, 0, off,
+ FDT_PROP_KEXEC_ELFHDR,
+ image->arch.elf_headers_mem,
+ image->arch.elf_headers_sz);
+ if (ret)
+ return (ret == -FDT_ERR_NOSPACE ? -ENOMEM : -EINVAL);
+
+ /* add linux,usable-memory-range */
+ ret = fdt_appendprop_addrrange(dtb, 0, off,
+ FDT_PROP_MEM_RANGE,
+ crashk_res.start,
+ crashk_res.end - crashk_res.start + 1);
+ if (ret)
+ return (ret == -FDT_ERR_NOSPACE ? -ENOMEM : -EINVAL);
+ }
+
/* add bootargs */
if (cmdline) {
ret = fdt_setprop_string(dtb, off, FDT_PROP_BOOTARGS, cmdline);
@@ -125,8 +157,8 @@ out:
}
/*
- * More space needed so that we can add initrd, bootargs, kaslr-seed, and
- * rng-seed.
+ * More space needed so that we can add initrd, bootargs, kaslr-seed,
+ * rng-seed, userable-memory-range and elfcorehdr.
*/
#define DTB_EXTRA_SPACE 0x1000
@@ -174,6 +206,43 @@ static int create_dtb(struct kimage *image,
}
}
+static int prepare_elf_headers(void **addr, unsigned long *sz)
+{
+ struct crash_mem *cmem;
+ unsigned int nr_ranges;
+ int ret;
+ u64 i;
+ phys_addr_t start, end;
+
+ nr_ranges = 1; /* for exclusion of crashkernel region */
+ for_each_mem_range(i, &memblock.memory, NULL, NUMA_NO_NODE,
+ MEMBLOCK_NONE, &start, &end, NULL)
+ nr_ranges++;
+
+ cmem = kmalloc(sizeof(struct crash_mem) +
+ sizeof(struct crash_mem_range) * nr_ranges, GFP_KERNEL);
+ if (!cmem)
+ return -ENOMEM;
+
+ cmem->max_nr_ranges = nr_ranges;
+ cmem->nr_ranges = 0;
+ for_each_mem_range(i, &memblock.memory, NULL, NUMA_NO_NODE,
+ MEMBLOCK_NONE, &start, &end, NULL) {
+ cmem->ranges[cmem->nr_ranges].start = start;
+ cmem->ranges[cmem->nr_ranges].end = end - 1;
+ cmem->nr_ranges++;
+ }
+
+ /* Exclude crashkernel region */
+ ret = crash_exclude_mem_range(cmem, crashk_res.start, crashk_res.end);
+
+ if (!ret)
+ ret = crash_prepare_elf64_headers(cmem, true, addr, sz);
+
+ kfree(cmem);
+ return ret;
+}
+
int load_other_segments(struct kimage *image,
unsigned long kernel_load_addr,
unsigned long kernel_size,
@@ -181,14 +250,43 @@ int load_other_segments(struct kimage *image,
char *cmdline)
{
struct kexec_buf kbuf;
- void *dtb = NULL;
- unsigned long initrd_load_addr = 0, dtb_len;
+ void *headers, *dtb = NULL;
+ unsigned long headers_sz, initrd_load_addr = 0, dtb_len;
int ret = 0;
kbuf.image = image;
/* not allocate anything below the kernel */
kbuf.buf_min = kernel_load_addr + kernel_size;
+ /* load elf core header */
+ if (image->type == KEXEC_TYPE_CRASH) {
+ ret = prepare_elf_headers(&headers, &headers_sz);
+ if (ret) {
+ pr_err("Preparing elf core header failed\n");
+ goto out_err;
+ }
+
+ kbuf.buffer = headers;
+ kbuf.bufsz = headers_sz;
+ kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
+ kbuf.memsz = headers_sz;
+ kbuf.buf_align = SZ_64K; /* largest supported page size */
+ kbuf.buf_max = ULONG_MAX;
+ kbuf.top_down = true;
+
+ ret = kexec_add_buffer(&kbuf);
+ if (ret) {
+ vfree(headers);
+ goto out_err;
+ }
+ image->arch.elf_headers = headers;
+ image->arch.elf_headers_mem = kbuf.mem;
+ image->arch.elf_headers_sz = headers_sz;
+
+ pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n",
+ image->arch.elf_headers_mem, headers_sz, headers_sz);
+ }
+
/* load initrd */
if (initrd) {
kbuf.buffer = initrd;
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 71f788cd2b18..bbb0f0c145f6 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -360,8 +360,8 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
asmlinkage void ret_from_fork(void) asm("ret_from_fork");
-int copy_thread(unsigned long clone_flags, unsigned long stack_start,
- unsigned long stk_sz, struct task_struct *p)
+int copy_thread_tls(unsigned long clone_flags, unsigned long stack_start,
+ unsigned long stk_sz, struct task_struct *p, unsigned long tls)
{
struct pt_regs *childregs = task_pt_regs(p);
@@ -394,11 +394,11 @@ int copy_thread(unsigned long clone_flags, unsigned long stack_start,
}
/*
- * If a TLS pointer was passed to clone (4th argument), use it
- * for the new thread.
+ * If a TLS pointer was passed to clone, use it for the new
+ * thread.
*/
if (clone_flags & CLONE_SETTLS)
- p->thread.uw.tp_value = childregs->regs[3];
+ p->thread.uw.tp_value = tls;
} else {
memset(childregs, 0, sizeof(struct pt_regs));
childregs->pstate = PSR_MODE_EL1h;
@@ -646,6 +646,6 @@ asmlinkage void __sched arm64_preempt_schedule_irq(void)
* Only allow a task to be preempted once cpufeatures have been
* enabled.
*/
- if (static_branch_likely(&arm64_const_caps_ready))
+ if (system_capabilities_finalized())
preempt_schedule_irq();
}
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index 6771c399d40c..cd6e5fa48b9c 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -615,6 +615,13 @@ static int gpr_set(struct task_struct *target, const struct user_regset *regset,
return 0;
}
+static int fpr_active(struct task_struct *target, const struct user_regset *regset)
+{
+ if (!system_supports_fpsimd())
+ return -ENODEV;
+ return regset->n;
+}
+
/*
* TODO: update fp accessors for lazy context switching (sync/flush hwstate)
*/
@@ -637,6 +644,9 @@ static int fpr_get(struct task_struct *target, const struct user_regset *regset,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
+ if (!system_supports_fpsimd())
+ return -EINVAL;
+
if (target == current)
fpsimd_preserve_current_state();
@@ -676,6 +686,9 @@ static int fpr_set(struct task_struct *target, const struct user_regset *regset,
{
int ret;
+ if (!system_supports_fpsimd())
+ return -EINVAL;
+
ret = __fpr_set(target, regset, pos, count, kbuf, ubuf, 0);
if (ret)
return ret;
@@ -1134,6 +1147,7 @@ static const struct user_regset aarch64_regsets[] = {
*/
.size = sizeof(u32),
.align = sizeof(u32),
+ .active = fpr_active,
.get = fpr_get,
.set = fpr_set
},
@@ -1348,6 +1362,9 @@ static int compat_vfp_get(struct task_struct *target,
compat_ulong_t fpscr;
int ret, vregs_end_pos;
+ if (!system_supports_fpsimd())
+ return -EINVAL;
+
uregs = &target->thread.uw.fpsimd_state;
if (target == current)
@@ -1381,6 +1398,9 @@ static int compat_vfp_set(struct task_struct *target,
compat_ulong_t fpscr;
int ret, vregs_end_pos;
+ if (!system_supports_fpsimd())
+ return -EINVAL;
+
uregs = &target->thread.uw.fpsimd_state;
vregs_end_pos = VFP_STATE_SIZE - sizeof(compat_ulong_t);
@@ -1438,6 +1458,7 @@ static const struct user_regset aarch32_regsets[] = {
.n = VFP_STATE_SIZE / sizeof(compat_ulong_t),
.size = sizeof(compat_ulong_t),
.align = sizeof(compat_ulong_t),
+ .active = fpr_active,
.get = compat_vfp_get,
.set = compat_vfp_set
},
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 56f664561754..a34890bf309f 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -285,6 +285,13 @@ void __init setup_arch(char **cmdline_p)
*cmdline_p = boot_command_line;
+ /*
+ * If know now we are going to need KPTI then use non-global
+ * mappings from the start, avoiding the cost of rewriting
+ * everything later.
+ */
+ arm64_use_ng_mappings = kaslr_requires_kpti();
+
early_fixmap_init();
early_ioremap_init();
@@ -353,9 +360,6 @@ void __init setup_arch(char **cmdline_p)
init_task.thread_info.ttbr0 = __pa_symbol(empty_zero_page);
#endif
-#ifdef CONFIG_VT
- conswitchp = &dummy_con;
-#endif
if (boot_args[1] || boot_args[2] || boot_args[3]) {
pr_err("WARNING: x1-x3 nonzero in violation of boot protocol:\n"
"\tx1: %016llx\n\tx2: %016llx\n\tx3: %016llx\n"
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index dd2cdc0d5be2..339882db5a91 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -371,6 +371,8 @@ static int parse_user_sigframe(struct user_ctxs *user,
goto done;
case FPSIMD_MAGIC:
+ if (!system_supports_fpsimd())
+ goto invalid;
if (user->fpsimd)
goto invalid;
@@ -506,7 +508,7 @@ static int restore_sigframe(struct pt_regs *regs,
if (err == 0)
err = parse_user_sigframe(&user, sf);
- if (err == 0) {
+ if (err == 0 && system_supports_fpsimd()) {
if (!user.fpsimd)
return -EINVAL;
@@ -623,7 +625,7 @@ static int setup_sigframe(struct rt_sigframe_user_layout *user,
err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
- if (err == 0) {
+ if (err == 0 && system_supports_fpsimd()) {
struct fpsimd_context __user *fpsimd_ctx =
apply_user_offset(user, user->fpsimd_offset);
err |= preserve_fpsimd_context(fpsimd_ctx);
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index 12a585386c2f..82feca6f7052 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -223,7 +223,7 @@ static int compat_restore_sigframe(struct pt_regs *regs,
err |= !valid_user_regs(&regs->user_regs, current);
aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
- if (err == 0)
+ if (err == 0 && system_supports_fpsimd())
err |= compat_restore_vfp_context(&aux->vfp);
return err;
@@ -419,7 +419,7 @@ static int compat_setup_sigframe(struct compat_sigframe __user *sf,
aux = (struct compat_aux_sigframe __user *) sf->uc.uc_regspace;
- if (err == 0)
+ if (err == 0 && system_supports_fpsimd())
err |= compat_preserve_vfp_context(&aux->vfp);
__put_user_error(0, &aux->end_magic, err);
diff --git a/arch/arm64/kernel/ssbd.c b/arch/arm64/kernel/ssbd.c
index 52cfc6148355..b26955f56750 100644
--- a/arch/arm64/kernel/ssbd.c
+++ b/arch/arm64/kernel/ssbd.c
@@ -37,7 +37,7 @@ static int ssbd_prctl_set(struct task_struct *task, unsigned long ctrl)
/* Unsupported */
if (state == ARM64_SSBD_UNKNOWN)
- return -EINVAL;
+ return -ENODEV;
/* Treat the unaffected/mitigated state separately */
if (state == ARM64_SSBD_MITIGATED) {
@@ -102,7 +102,7 @@ static int ssbd_prctl_get(struct task_struct *task)
{
switch (arm64_get_ssbd_state()) {
case ARM64_SSBD_UNKNOWN:
- return -EINVAL;
+ return -ENODEV;
case ARM64_SSBD_FORCE_ENABLE:
return PR_SPEC_DISABLE;
case ARM64_SSBD_KERNEL:
diff --git a/arch/arm64/kernel/syscall.c b/arch/arm64/kernel/syscall.c
index 9a9d98a443fc..a12c0c88d345 100644
--- a/arch/arm64/kernel/syscall.c
+++ b/arch/arm64/kernel/syscall.c
@@ -154,14 +154,14 @@ static inline void sve_user_discard(void)
sve_user_disable();
}
-void el0_svc_handler(struct pt_regs *regs)
+void do_el0_svc(struct pt_regs *regs)
{
sve_user_discard();
el0_svc_common(regs, regs->regs[8], __NR_syscalls, sys_call_table);
}
#ifdef CONFIG_COMPAT
-void el0_svc_compat_handler(struct pt_regs *regs)
+void do_el0_svc_compat(struct pt_regs *regs)
{
el0_svc_common(regs, regs->regs[7], __NR_compat_syscalls,
compat_sys_call_table);
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 73caf35c2262..cf402be5c573 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -144,9 +144,12 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
#ifdef CONFIG_PREEMPT
#define S_PREEMPT " PREEMPT"
+#elif defined(CONFIG_PREEMPT_RT)
+#define S_PREEMPT " PREEMPT_RT"
#else
#define S_PREEMPT ""
#endif
+
#define S_SMP " SMP"
static int __die(const char *str, int err, struct pt_regs *regs)
diff --git a/arch/arm64/kvm/debug.c b/arch/arm64/kvm/debug.c
index 43487f035385..7a7e425616b5 100644
--- a/arch/arm64/kvm/debug.c
+++ b/arch/arm64/kvm/debug.c
@@ -101,7 +101,7 @@ void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu)
void kvm_arm_setup_debug(struct kvm_vcpu *vcpu)
{
bool trap_debug = !(vcpu->arch.flags & KVM_ARM64_DEBUG_DIRTY);
- unsigned long mdscr;
+ unsigned long mdscr, orig_mdcr_el2 = vcpu->arch.mdcr_el2;
trace_kvm_arm_setup_debug(vcpu, vcpu->guest_debug);
@@ -197,6 +197,10 @@ void kvm_arm_setup_debug(struct kvm_vcpu *vcpu)
if (vcpu_read_sys_reg(vcpu, MDSCR_EL1) & (DBG_MDSCR_KDE | DBG_MDSCR_MDE))
vcpu->arch.flags |= KVM_ARM64_DEBUG_DIRTY;
+ /* Write mdcr_el2 changes since vcpu_load on VHE systems */
+ if (has_vhe() && orig_mdcr_el2 != vcpu->arch.mdcr_el2)
+ write_sysreg(vcpu->arch.mdcr_el2, mdcr_el2);
+
trace_kvm_arm_set_dreg32("MDCR_EL2", vcpu->arch.mdcr_el2);
trace_kvm_arm_set_dreg32("MDSCR_EL1", vcpu_read_sys_reg(vcpu, MDSCR_EL1));
}
diff --git a/arch/arm64/kvm/hyp/entry.S b/arch/arm64/kvm/hyp/entry.S
index e5cc8d66bf53..0c6832ec52b1 100644
--- a/arch/arm64/kvm/hyp/entry.S
+++ b/arch/arm64/kvm/hyp/entry.S
@@ -22,7 +22,12 @@
.text
.pushsection .hyp.text, "ax"
+/*
+ * We treat x18 as callee-saved as the host may use it as a platform
+ * register (e.g. for shadow call stack).
+ */
.macro save_callee_saved_regs ctxt
+ str x18, [\ctxt, #CPU_XREG_OFFSET(18)]
stp x19, x20, [\ctxt, #CPU_XREG_OFFSET(19)]
stp x21, x22, [\ctxt, #CPU_XREG_OFFSET(21)]
stp x23, x24, [\ctxt, #CPU_XREG_OFFSET(23)]
@@ -32,6 +37,8 @@
.endm
.macro restore_callee_saved_regs ctxt
+ // We require \ctxt is not x18-x28
+ ldr x18, [\ctxt, #CPU_XREG_OFFSET(18)]
ldp x19, x20, [\ctxt, #CPU_XREG_OFFSET(19)]
ldp x21, x22, [\ctxt, #CPU_XREG_OFFSET(21)]
ldp x23, x24, [\ctxt, #CPU_XREG_OFFSET(23)]
@@ -48,7 +55,7 @@ ENTRY(__guest_enter)
// x0: vcpu
// x1: host context
// x2-x17: clobbered by macros
- // x18: guest context
+ // x29: guest context
// Store the host regs
save_callee_saved_regs x1
@@ -67,31 +74,28 @@ alternative_else_nop_endif
ret
1:
- add x18, x0, #VCPU_CONTEXT
+ add x29, x0, #VCPU_CONTEXT
// Macro ptrauth_switch_to_guest format:
// ptrauth_switch_to_guest(guest cxt, tmp1, tmp2, tmp3)
// The below macro to restore guest keys is not implemented in C code
// as it may cause Pointer Authentication key signing mismatch errors
// when this feature is enabled for kernel code.
- ptrauth_switch_to_guest x18, x0, x1, x2
+ ptrauth_switch_to_guest x29, x0, x1, x2
// Restore guest regs x0-x17
- ldp x0, x1, [x18, #CPU_XREG_OFFSET(0)]
- ldp x2, x3, [x18, #CPU_XREG_OFFSET(2)]
- ldp x4, x5, [x18, #CPU_XREG_OFFSET(4)]
- ldp x6, x7, [x18, #CPU_XREG_OFFSET(6)]
- ldp x8, x9, [x18, #CPU_XREG_OFFSET(8)]
- ldp x10, x11, [x18, #CPU_XREG_OFFSET(10)]
- ldp x12, x13, [x18, #CPU_XREG_OFFSET(12)]
- ldp x14, x15, [x18, #CPU_XREG_OFFSET(14)]
- ldp x16, x17, [x18, #CPU_XREG_OFFSET(16)]
-
- // Restore guest regs x19-x29, lr
- restore_callee_saved_regs x18
-
- // Restore guest reg x18
- ldr x18, [x18, #CPU_XREG_OFFSET(18)]
+ ldp x0, x1, [x29, #CPU_XREG_OFFSET(0)]
+ ldp x2, x3, [x29, #CPU_XREG_OFFSET(2)]
+ ldp x4, x5, [x29, #CPU_XREG_OFFSET(4)]
+ ldp x6, x7, [x29, #CPU_XREG_OFFSET(6)]
+ ldp x8, x9, [x29, #CPU_XREG_OFFSET(8)]
+ ldp x10, x11, [x29, #CPU_XREG_OFFSET(10)]
+ ldp x12, x13, [x29, #CPU_XREG_OFFSET(12)]
+ ldp x14, x15, [x29, #CPU_XREG_OFFSET(14)]
+ ldp x16, x17, [x29, #CPU_XREG_OFFSET(16)]
+
+ // Restore guest regs x18-x29, lr
+ restore_callee_saved_regs x29
// Do not touch any register after this!
eret
@@ -114,7 +118,7 @@ ENTRY(__guest_exit)
// Retrieve the guest regs x0-x1 from the stack
ldp x2, x3, [sp], #16 // x0, x1
- // Store the guest regs x0-x1 and x4-x18
+ // Store the guest regs x0-x1 and x4-x17
stp x2, x3, [x1, #CPU_XREG_OFFSET(0)]
stp x4, x5, [x1, #CPU_XREG_OFFSET(4)]
stp x6, x7, [x1, #CPU_XREG_OFFSET(6)]
@@ -123,9 +127,8 @@ ENTRY(__guest_exit)
stp x12, x13, [x1, #CPU_XREG_OFFSET(12)]
stp x14, x15, [x1, #CPU_XREG_OFFSET(14)]
stp x16, x17, [x1, #CPU_XREG_OFFSET(16)]
- str x18, [x1, #CPU_XREG_OFFSET(18)]
- // Store the guest regs x19-x29, lr
+ // Store the guest regs x18-x29, lr
save_callee_saved_regs x1
get_host_ctxt x2, x3
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index 72fbbd86eb5e..dfe8dd172512 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -28,7 +28,15 @@
/* Check whether the FP regs were dirtied while in the host-side run loop: */
static bool __hyp_text update_fp_enabled(struct kvm_vcpu *vcpu)
{
- if (vcpu->arch.host_thread_info->flags & _TIF_FOREIGN_FPSTATE)
+ /*
+ * When the system doesn't support FP/SIMD, we cannot rely on
+ * the _TIF_FOREIGN_FPSTATE flag. However, we always inject an
+ * abort on the very first access to FP and thus we should never
+ * see KVM_ARM64_FP_ENABLED. For added safety, make sure we always
+ * trap the accesses.
+ */
+ if (!system_supports_fpsimd() ||
+ vcpu->arch.host_thread_info->flags & _TIF_FOREIGN_FPSTATE)
vcpu->arch.flags &= ~(KVM_ARM64_FP_ENABLED |
KVM_ARM64_FP_HOST);
@@ -119,7 +127,7 @@ static void __hyp_text __activate_traps_nvhe(struct kvm_vcpu *vcpu)
write_sysreg(val, cptr_el2);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
struct kvm_cpu_context *ctxt = &vcpu->arch.ctxt;
isb();
@@ -158,11 +166,11 @@ static void deactivate_traps_vhe(void)
write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2);
/*
- * ARM erratum 1165522 requires the actual execution of the above
- * before we can switch to the EL2/EL0 translation regime used by
+ * ARM errata 1165522 and 1530923 require the actual execution of the
+ * above before we can switch to the EL2/EL0 translation regime used by
* the host.
*/
- asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_1165522));
+ asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_SPECULATIVE_AT_VHE));
write_sysreg(CPACR_EL1_DEFAULT, cpacr_el1);
write_sysreg(vectors, vbar_el1);
@@ -173,7 +181,7 @@ static void __hyp_text __deactivate_traps_nvhe(void)
{
u64 mdcr_el2 = read_sysreg(mdcr_el2);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
u64 val;
/*
diff --git a/arch/arm64/kvm/hyp/sysreg-sr.c b/arch/arm64/kvm/hyp/sysreg-sr.c
index 22b8128d19f6..7672a978926c 100644
--- a/arch/arm64/kvm/hyp/sysreg-sr.c
+++ b/arch/arm64/kvm/hyp/sysreg-sr.c
@@ -118,7 +118,7 @@ static void __hyp_text __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt)
write_sysreg(ctxt->sys_regs[MPIDR_EL1], vmpidr_el2);
write_sysreg(ctxt->sys_regs[CSSELR_EL1], csselr_el1);
- if (!cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (!cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
write_sysreg_el1(ctxt->sys_regs[SCTLR_EL1], SYS_SCTLR);
write_sysreg_el1(ctxt->sys_regs[TCR_EL1], SYS_TCR);
} else if (!ctxt->__hyp_running_vcpu) {
@@ -149,7 +149,7 @@ static void __hyp_text __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt)
write_sysreg(ctxt->sys_regs[PAR_EL1], par_el1);
write_sysreg(ctxt->sys_regs[TPIDR_EL1], tpidr_el1);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367) &&
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE) &&
ctxt->__hyp_running_vcpu) {
/*
* Must only be done for host registers, hence the context
diff --git a/arch/arm64/kvm/hyp/tlb.c b/arch/arm64/kvm/hyp/tlb.c
index c2bc17ca6430..92f560e3e1aa 100644
--- a/arch/arm64/kvm/hyp/tlb.c
+++ b/arch/arm64/kvm/hyp/tlb.c
@@ -23,10 +23,10 @@ static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm,
local_irq_save(cxt->flags);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1165522)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_VHE)) {
/*
- * For CPUs that are affected by ARM erratum 1165522, we
- * cannot trust stage-1 to be in a correct state at that
+ * For CPUs that are affected by ARM errata 1165522 or 1530923,
+ * we cannot trust stage-1 to be in a correct state at that
* point. Since we do not want to force a full load of the
* vcpu state, we prevent the EL1 page-table walker to
* allocate new TLBs. This is done by setting the EPD bits
@@ -63,7 +63,7 @@ static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm,
static void __hyp_text __tlb_switch_to_guest_nvhe(struct kvm *kvm,
struct tlb_inv_context *cxt)
{
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
u64 val;
/*
@@ -103,7 +103,7 @@ static void __hyp_text __tlb_switch_to_host_vhe(struct kvm *kvm,
write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2);
isb();
- if (cpus_have_const_cap(ARM64_WORKAROUND_1165522)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_VHE)) {
/* Restore the registers to what they were */
write_sysreg_el1(cxt->tcr, SYS_TCR);
write_sysreg_el1(cxt->sctlr, SYS_SCTLR);
@@ -117,7 +117,7 @@ static void __hyp_text __tlb_switch_to_host_nvhe(struct kvm *kvm,
{
write_sysreg(0, vttbr_el2);
- if (cpus_have_const_cap(ARM64_WORKAROUND_1319367)) {
+ if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) {
/* Ensure write of the host VMID */
isb();
/* Restore the host's TCR_EL1 */
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 46822afc57e0..3e909b117f0c 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1424,7 +1424,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
ID_SANITISED(ID_ISAR4_EL1),
ID_SANITISED(ID_ISAR5_EL1),
ID_SANITISED(ID_MMFR4_EL1),
- ID_UNALLOCATED(2,7),
+ ID_SANITISED(ID_ISAR6_EL1),
/* CRm=3 */
ID_SANITISED(MVFR0_EL1),
@@ -2098,9 +2098,9 @@ static void unhandled_cp_access(struct kvm_vcpu *vcpu,
WARN_ON(1);
}
- kvm_err("Unsupported guest CP%d access at: %08lx [%08lx]\n",
- cp, *vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
- print_sys_reg_instr(params);
+ print_sys_reg_msg(params,
+ "Unsupported guest CP%d access at: %08lx [%08lx]\n",
+ cp, *vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
kvm_inject_undefined(vcpu);
}
@@ -2233,6 +2233,12 @@ int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
NULL, 0);
}
+static bool is_imp_def_sys_reg(struct sys_reg_params *params)
+{
+ // See ARM DDI 0487E.a, section D12.3.2
+ return params->Op0 == 3 && (params->CRn & 0b1011) == 0b1011;
+}
+
static int emulate_sys_reg(struct kvm_vcpu *vcpu,
struct sys_reg_params *params)
{
@@ -2248,10 +2254,12 @@ static int emulate_sys_reg(struct kvm_vcpu *vcpu,
if (likely(r)) {
perform_access(vcpu, params, r);
+ } else if (is_imp_def_sys_reg(params)) {
+ kvm_inject_undefined(vcpu);
} else {
- kvm_err("Unsupported guest sys_reg access at: %lx [%08lx]\n",
- *vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
- print_sys_reg_instr(params);
+ print_sys_reg_msg(params,
+ "Unsupported guest sys_reg access at: %lx [%08lx]\n",
+ *vcpu_pc(vcpu), *vcpu_cpsr(vcpu));
kvm_inject_undefined(vcpu);
}
return 1;
@@ -2360,8 +2368,11 @@ static const struct sys_reg_desc *index_to_sys_reg_desc(struct kvm_vcpu *vcpu,
if ((id & KVM_REG_ARM_COPROC_MASK) != KVM_REG_ARM64_SYSREG)
return NULL;
+ if (!index_to_params(id, &params))
+ return NULL;
+
table = get_target_table(vcpu->arch.target, true, &num);
- r = find_reg_by_id(id, &params, table, num);
+ r = find_reg(&params, table, num);
if (!r)
r = find_reg(&params, sys_reg_descs, ARRAY_SIZE(sys_reg_descs));
diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index 9bca0312d798..5a6fc30f5989 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -62,11 +62,24 @@ struct sys_reg_desc {
#define REG_HIDDEN_USER (1 << 0) /* hidden from userspace ioctls */
#define REG_HIDDEN_GUEST (1 << 1) /* hidden from guest */
-static inline void print_sys_reg_instr(const struct sys_reg_params *p)
+static __printf(2, 3)
+inline void print_sys_reg_msg(const struct sys_reg_params *p,
+ char *fmt, ...)
{
+ va_list va;
+
+ va_start(va, fmt);
/* Look, we even formatted it for you to paste into the table! */
- kvm_pr_unimpl(" { Op0(%2u), Op1(%2u), CRn(%2u), CRm(%2u), Op2(%2u), func_%s },\n",
+ kvm_pr_unimpl("%pV { Op0(%2u), Op1(%2u), CRn(%2u), CRm(%2u), Op2(%2u), func_%s },\n",
+ &(struct va_format){ fmt, &va },
p->Op0, p->Op1, p->CRn, p->CRm, p->Op2, p->is_write ? "write" : "read");
+ va_end(va);
+}
+
+static inline void print_sys_reg_instr(const struct sys_reg_params *p)
+{
+ /* GCC warns on an empty format string */
+ print_sys_reg_msg(p, "%s", "");
}
static inline bool ignore_write(struct kvm_vcpu *vcpu,
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile
index c21b936dc01d..2fc253466dbf 100644
--- a/arch/arm64/lib/Makefile
+++ b/arch/arm64/lib/Makefile
@@ -1,9 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
lib-y := clear_user.o delay.o copy_from_user.o \
copy_to_user.o copy_in_user.o copy_page.o \
- clear_page.o memchr.o memcpy.o memmove.o memset.o \
- memcmp.o strcmp.o strncmp.o strlen.o strnlen.o \
- strchr.o strrchr.o tishift.o
+ clear_page.o csum.o memchr.o memcpy.o memmove.o \
+ memset.o memcmp.o strcmp.o strncmp.o strlen.o \
+ strnlen.o strchr.o strrchr.o tishift.o
ifeq ($(CONFIG_KERNEL_MODE_NEON), y)
obj-$(CONFIG_XOR_BLOCKS) += xor-neon.o
diff --git a/arch/arm64/lib/clear_page.S b/arch/arm64/lib/clear_page.S
index 78a9ef66288a..073acbf02a7c 100644
--- a/arch/arm64/lib/clear_page.S
+++ b/arch/arm64/lib/clear_page.S
@@ -14,7 +14,7 @@
* Parameters:
* x0 - dest
*/
-ENTRY(clear_page)
+SYM_FUNC_START(clear_page)
mrs x1, dczid_el0
and w1, w1, #0xf
mov x2, #4
@@ -25,5 +25,5 @@ ENTRY(clear_page)
tst x0, #(PAGE_SIZE - 1)
b.ne 1b
ret
-ENDPROC(clear_page)
+SYM_FUNC_END(clear_page)
EXPORT_SYMBOL(clear_page)
diff --git a/arch/arm64/lib/clear_user.S b/arch/arm64/lib/clear_user.S
index aeafc03e961a..48a3a26eff66 100644
--- a/arch/arm64/lib/clear_user.S
+++ b/arch/arm64/lib/clear_user.S
@@ -19,7 +19,7 @@
*
* Alignment fixed up by hardware.
*/
-ENTRY(__arch_clear_user)
+SYM_FUNC_START(__arch_clear_user)
mov x2, x1 // save the size for fixup return
subs x1, x1, #8
b.mi 2f
@@ -40,7 +40,7 @@ uao_user_alternative 9f, strh, sttrh, wzr, x0, 2
uao_user_alternative 9f, strb, sttrb, wzr, x0, 0
5: mov x0, #0
ret
-ENDPROC(__arch_clear_user)
+SYM_FUNC_END(__arch_clear_user)
EXPORT_SYMBOL(__arch_clear_user)
.section .fixup,"ax"
diff --git a/arch/arm64/lib/copy_from_user.S b/arch/arm64/lib/copy_from_user.S
index ebb3c06cbb5d..8e25e89ad01f 100644
--- a/arch/arm64/lib/copy_from_user.S
+++ b/arch/arm64/lib/copy_from_user.S
@@ -53,12 +53,12 @@
.endm
end .req x5
-ENTRY(__arch_copy_from_user)
+SYM_FUNC_START(__arch_copy_from_user)
add end, x0, x2
#include "copy_template.S"
mov x0, #0 // Nothing to copy
ret
-ENDPROC(__arch_copy_from_user)
+SYM_FUNC_END(__arch_copy_from_user)
EXPORT_SYMBOL(__arch_copy_from_user)
.section .fixup,"ax"
diff --git a/arch/arm64/lib/copy_in_user.S b/arch/arm64/lib/copy_in_user.S
index 3d8153a1ebce..667139013ed1 100644
--- a/arch/arm64/lib/copy_in_user.S
+++ b/arch/arm64/lib/copy_in_user.S
@@ -55,12 +55,12 @@
end .req x5
-ENTRY(__arch_copy_in_user)
+SYM_FUNC_START(__arch_copy_in_user)
add end, x0, x2
#include "copy_template.S"
mov x0, #0
ret
-ENDPROC(__arch_copy_in_user)
+SYM_FUNC_END(__arch_copy_in_user)
EXPORT_SYMBOL(__arch_copy_in_user)
.section .fixup,"ax"
diff --git a/arch/arm64/lib/copy_page.S b/arch/arm64/lib/copy_page.S
index bbb8562396af..e7a793961408 100644
--- a/arch/arm64/lib/copy_page.S
+++ b/arch/arm64/lib/copy_page.S
@@ -17,7 +17,7 @@
* x0 - dest
* x1 - src
*/
-ENTRY(copy_page)
+SYM_FUNC_START(copy_page)
alternative_if ARM64_HAS_NO_HW_PREFETCH
// Prefetch three cache lines ahead.
prfm pldl1strm, [x1, #128]
@@ -34,46 +34,46 @@ alternative_else_nop_endif
ldp x14, x15, [x1, #96]
ldp x16, x17, [x1, #112]
- mov x18, #(PAGE_SIZE - 128)
+ add x0, x0, #256
add x1, x1, #128
1:
- subs x18, x18, #128
+ tst x0, #(PAGE_SIZE - 1)
alternative_if ARM64_HAS_NO_HW_PREFETCH
prfm pldl1strm, [x1, #384]
alternative_else_nop_endif
- stnp x2, x3, [x0]
+ stnp x2, x3, [x0, #-256]
ldp x2, x3, [x1]
- stnp x4, x5, [x0, #16]
+ stnp x4, x5, [x0, #16 - 256]
ldp x4, x5, [x1, #16]
- stnp x6, x7, [x0, #32]
+ stnp x6, x7, [x0, #32 - 256]
ldp x6, x7, [x1, #32]
- stnp x8, x9, [x0, #48]
+ stnp x8, x9, [x0, #48 - 256]
ldp x8, x9, [x1, #48]
- stnp x10, x11, [x0, #64]
+ stnp x10, x11, [x0, #64 - 256]
ldp x10, x11, [x1, #64]
- stnp x12, x13, [x0, #80]
+ stnp x12, x13, [x0, #80 - 256]
ldp x12, x13, [x1, #80]
- stnp x14, x15, [x0, #96]
+ stnp x14, x15, [x0, #96 - 256]
ldp x14, x15, [x1, #96]
- stnp x16, x17, [x0, #112]
+ stnp x16, x17, [x0, #112 - 256]
ldp x16, x17, [x1, #112]
add x0, x0, #128
add x1, x1, #128
- b.gt 1b
+ b.ne 1b
- stnp x2, x3, [x0]
- stnp x4, x5, [x0, #16]
- stnp x6, x7, [x0, #32]
- stnp x8, x9, [x0, #48]
- stnp x10, x11, [x0, #64]
- stnp x12, x13, [x0, #80]
- stnp x14, x15, [x0, #96]
- stnp x16, x17, [x0, #112]
+ stnp x2, x3, [x0, #-256]
+ stnp x4, x5, [x0, #16 - 256]
+ stnp x6, x7, [x0, #32 - 256]
+ stnp x8, x9, [x0, #48 - 256]
+ stnp x10, x11, [x0, #64 - 256]
+ stnp x12, x13, [x0, #80 - 256]
+ stnp x14, x15, [x0, #96 - 256]
+ stnp x16, x17, [x0, #112 - 256]
ret
-ENDPROC(copy_page)
+SYM_FUNC_END(copy_page)
EXPORT_SYMBOL(copy_page)
diff --git a/arch/arm64/lib/copy_to_user.S b/arch/arm64/lib/copy_to_user.S
index 357eae2c18eb..1a104d0089f3 100644
--- a/arch/arm64/lib/copy_to_user.S
+++ b/arch/arm64/lib/copy_to_user.S
@@ -52,12 +52,12 @@
.endm
end .req x5
-ENTRY(__arch_copy_to_user)
+SYM_FUNC_START(__arch_copy_to_user)
add end, x0, x2
#include "copy_template.S"
mov x0, #0
ret
-ENDPROC(__arch_copy_to_user)
+SYM_FUNC_END(__arch_copy_to_user)
EXPORT_SYMBOL(__arch_copy_to_user)
.section .fixup,"ax"
diff --git a/arch/arm64/lib/crc32.S b/arch/arm64/lib/crc32.S
index e6135f16649b..243e107e9896 100644
--- a/arch/arm64/lib/crc32.S
+++ b/arch/arm64/lib/crc32.S
@@ -85,17 +85,17 @@ CPU_BE( rev16 w3, w3 )
.endm
.align 5
-ENTRY(crc32_le)
+SYM_FUNC_START(crc32_le)
alternative_if_not ARM64_HAS_CRC32
b crc32_le_base
alternative_else_nop_endif
__crc32
-ENDPROC(crc32_le)
+SYM_FUNC_END(crc32_le)
.align 5
-ENTRY(__crc32c_le)
+SYM_FUNC_START(__crc32c_le)
alternative_if_not ARM64_HAS_CRC32
b __crc32c_le_base
alternative_else_nop_endif
__crc32 c
-ENDPROC(__crc32c_le)
+SYM_FUNC_END(__crc32c_le)
diff --git a/arch/arm64/lib/csum.c b/arch/arm64/lib/csum.c
new file mode 100644
index 000000000000..1f82c66b32ea
--- /dev/null
+++ b/arch/arm64/lib/csum.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2019-2020 Arm Ltd.
+
+#include <linux/compiler.h>
+#include <linux/kasan-checks.h>
+#include <linux/kernel.h>
+
+#include <net/checksum.h>
+
+/* Looks dumb, but generates nice-ish code */
+static u64 accumulate(u64 sum, u64 data)
+{
+ __uint128_t tmp = (__uint128_t)sum + data;
+ return tmp + (tmp >> 64);
+}
+
+unsigned int do_csum(const unsigned char *buff, int len)
+{
+ unsigned int offset, shift, sum;
+ const u64 *ptr;
+ u64 data, sum64 = 0;
+
+ if (unlikely(len == 0))
+ return 0;
+
+ offset = (unsigned long)buff & 7;
+ /*
+ * This is to all intents and purposes safe, since rounding down cannot
+ * result in a different page or cache line being accessed, and @buff
+ * should absolutely not be pointing to anything read-sensitive. We do,
+ * however, have to be careful not to piss off KASAN, which means using
+ * unchecked reads to accommodate the head and tail, for which we'll
+ * compensate with an explicit check up-front.
+ */
+ kasan_check_read(buff, len);
+ ptr = (u64 *)(buff - offset);
+ len = len + offset - 8;
+
+ /*
+ * Head: zero out any excess leading bytes. Shifting back by the same
+ * amount should be at least as fast as any other way of handling the
+ * odd/even alignment, and means we can ignore it until the very end.
+ */
+ shift = offset * 8;
+ data = READ_ONCE_NOCHECK(*ptr++);
+#ifdef __LITTLE_ENDIAN
+ data = (data >> shift) << shift;
+#else
+ data = (data << shift) >> shift;
+#endif
+
+ /*
+ * Body: straightforward aligned loads from here on (the paired loads
+ * underlying the quadword type still only need dword alignment). The
+ * main loop strictly excludes the tail, so the second loop will always
+ * run at least once.
+ */
+ while (unlikely(len > 64)) {
+ __uint128_t tmp1, tmp2, tmp3, tmp4;
+
+ tmp1 = READ_ONCE_NOCHECK(*(__uint128_t *)ptr);
+ tmp2 = READ_ONCE_NOCHECK(*(__uint128_t *)(ptr + 2));
+ tmp3 = READ_ONCE_NOCHECK(*(__uint128_t *)(ptr + 4));
+ tmp4 = READ_ONCE_NOCHECK(*(__uint128_t *)(ptr + 6));
+
+ len -= 64;
+ ptr += 8;
+
+ /* This is the "don't dump the carry flag into a GPR" idiom */
+ tmp1 += (tmp1 >> 64) | (tmp1 << 64);
+ tmp2 += (tmp2 >> 64) | (tmp2 << 64);
+ tmp3 += (tmp3 >> 64) | (tmp3 << 64);
+ tmp4 += (tmp4 >> 64) | (tmp4 << 64);
+ tmp1 = ((tmp1 >> 64) << 64) | (tmp2 >> 64);
+ tmp1 += (tmp1 >> 64) | (tmp1 << 64);
+ tmp3 = ((tmp3 >> 64) << 64) | (tmp4 >> 64);
+ tmp3 += (tmp3 >> 64) | (tmp3 << 64);
+ tmp1 = ((tmp1 >> 64) << 64) | (tmp3 >> 64);
+ tmp1 += (tmp1 >> 64) | (tmp1 << 64);
+ tmp1 = ((tmp1 >> 64) << 64) | sum64;
+ tmp1 += (tmp1 >> 64) | (tmp1 << 64);
+ sum64 = tmp1 >> 64;
+ }
+ while (len > 8) {
+ __uint128_t tmp;
+
+ sum64 = accumulate(sum64, data);
+ tmp = READ_ONCE_NOCHECK(*(__uint128_t *)ptr);
+
+ len -= 16;
+ ptr += 2;
+
+#ifdef __LITTLE_ENDIAN
+ data = tmp >> 64;
+ sum64 = accumulate(sum64, tmp);
+#else
+ data = tmp;
+ sum64 = accumulate(sum64, tmp >> 64);
+#endif
+ }
+ if (len > 0) {
+ sum64 = accumulate(sum64, data);
+ data = READ_ONCE_NOCHECK(*ptr);
+ len -= 8;
+ }
+ /*
+ * Tail: zero any over-read bytes similarly to the head, again
+ * preserving odd/even alignment.
+ */
+ shift = len * -8;
+#ifdef __LITTLE_ENDIAN
+ data = (data << shift) >> shift;
+#else
+ data = (data >> shift) << shift;
+#endif
+ sum64 = accumulate(sum64, data);
+
+ /* Finally, folding */
+ sum64 += (sum64 >> 32) | (sum64 << 32);
+ sum = sum64 >> 32;
+ sum += (sum >> 16) | (sum << 16);
+ if (offset & 1)
+ return (u16)swab32(sum);
+
+ return sum >> 16;
+}
diff --git a/arch/arm64/lib/memchr.S b/arch/arm64/lib/memchr.S
index 48a3ab636e4f..edf6b970a277 100644
--- a/arch/arm64/lib/memchr.S
+++ b/arch/arm64/lib/memchr.S
@@ -19,7 +19,7 @@
* Returns:
* x0 - address of first occurrence of 'c' or 0
*/
-WEAK(memchr)
+SYM_FUNC_START_WEAK_PI(memchr)
and w1, w1, #0xff
1: subs x2, x2, #1
b.mi 2f
@@ -30,5 +30,5 @@ WEAK(memchr)
ret
2: mov x0, #0
ret
-ENDPIPROC(memchr)
+SYM_FUNC_END_PI(memchr)
EXPORT_SYMBOL_NOKASAN(memchr)
diff --git a/arch/arm64/lib/memcmp.S b/arch/arm64/lib/memcmp.S
index b297bdaaf549..c0671e793ea9 100644
--- a/arch/arm64/lib/memcmp.S
+++ b/arch/arm64/lib/memcmp.S
@@ -46,7 +46,7 @@ pos .req x11
limit_wd .req x12
mask .req x13
-WEAK(memcmp)
+SYM_FUNC_START_WEAK_PI(memcmp)
cbz limit, .Lret0
eor tmp1, src1, src2
tst tmp1, #7
@@ -243,5 +243,5 @@ CPU_LE( rev data2, data2 )
.Lret0:
mov result, #0
ret
-ENDPIPROC(memcmp)
+SYM_FUNC_END_PI(memcmp)
EXPORT_SYMBOL_NOKASAN(memcmp)
diff --git a/arch/arm64/lib/memcpy.S b/arch/arm64/lib/memcpy.S
index d79f48994dbb..9f382adfa88a 100644
--- a/arch/arm64/lib/memcpy.S
+++ b/arch/arm64/lib/memcpy.S
@@ -57,11 +57,11 @@
.endm
.weak memcpy
-ENTRY(__memcpy)
-ENTRY(memcpy)
+SYM_FUNC_START_ALIAS(__memcpy)
+SYM_FUNC_START_PI(memcpy)
#include "copy_template.S"
ret
-ENDPIPROC(memcpy)
+SYM_FUNC_END_PI(memcpy)
EXPORT_SYMBOL(memcpy)
-ENDPROC(__memcpy)
+SYM_FUNC_END_ALIAS(__memcpy)
EXPORT_SYMBOL(__memcpy)
diff --git a/arch/arm64/lib/memmove.S b/arch/arm64/lib/memmove.S
index 784775136480..02cda2e33bde 100644
--- a/arch/arm64/lib/memmove.S
+++ b/arch/arm64/lib/memmove.S
@@ -46,8 +46,8 @@ D_l .req x13
D_h .req x14
.weak memmove
-ENTRY(__memmove)
-ENTRY(memmove)
+SYM_FUNC_START_ALIAS(__memmove)
+SYM_FUNC_START_PI(memmove)
cmp dstin, src
b.lo __memcpy
add tmp1, src, count
@@ -184,7 +184,7 @@ ENTRY(memmove)
tst count, #0x3f
b.ne .Ltail63
ret
-ENDPIPROC(memmove)
+SYM_FUNC_END_PI(memmove)
EXPORT_SYMBOL(memmove)
-ENDPROC(__memmove)
+SYM_FUNC_END_ALIAS(__memmove)
EXPORT_SYMBOL(__memmove)
diff --git a/arch/arm64/lib/memset.S b/arch/arm64/lib/memset.S
index 9fb97e6bc560..77c3c7ba0084 100644
--- a/arch/arm64/lib/memset.S
+++ b/arch/arm64/lib/memset.S
@@ -43,8 +43,8 @@ tmp3w .req w9
tmp3 .req x9
.weak memset
-ENTRY(__memset)
-ENTRY(memset)
+SYM_FUNC_START_ALIAS(__memset)
+SYM_FUNC_START_PI(memset)
mov dst, dstin /* Preserve return value. */
and A_lw, val, #255
orr A_lw, A_lw, A_lw, lsl #8
@@ -203,7 +203,7 @@ ENTRY(memset)
ands count, count, zva_bits_x
b.ne .Ltail_maybe_long
ret
-ENDPIPROC(memset)
+SYM_FUNC_END_PI(memset)
EXPORT_SYMBOL(memset)
-ENDPROC(__memset)
+SYM_FUNC_END_ALIAS(__memset)
EXPORT_SYMBOL(__memset)
diff --git a/arch/arm64/lib/strchr.S b/arch/arm64/lib/strchr.S
index ca3ec18171a4..1f47eae3b0d6 100644
--- a/arch/arm64/lib/strchr.S
+++ b/arch/arm64/lib/strchr.S
@@ -18,7 +18,7 @@
* Returns:
* x0 - address of first occurrence of 'c' or 0
*/
-WEAK(strchr)
+SYM_FUNC_START_WEAK(strchr)
and w1, w1, #0xff
1: ldrb w2, [x0], #1
cmp w2, w1
@@ -28,5 +28,5 @@ WEAK(strchr)
cmp w2, w1
csel x0, x0, xzr, eq
ret
-ENDPROC(strchr)
+SYM_FUNC_END(strchr)
EXPORT_SYMBOL_NOKASAN(strchr)
diff --git a/arch/arm64/lib/strcmp.S b/arch/arm64/lib/strcmp.S
index e9aefbe0b740..4767540d1b94 100644
--- a/arch/arm64/lib/strcmp.S
+++ b/arch/arm64/lib/strcmp.S
@@ -48,7 +48,7 @@ tmp3 .req x9
zeroones .req x10
pos .req x11
-WEAK(strcmp)
+SYM_FUNC_START_WEAK_PI(strcmp)
eor tmp1, src1, src2
mov zeroones, #REP8_01
tst tmp1, #7
@@ -219,5 +219,5 @@ CPU_BE( orr syndrome, diff, has_nul )
lsr data1, data1, #56
sub result, data1, data2, lsr #56
ret
-ENDPIPROC(strcmp)
+SYM_FUNC_END_PI(strcmp)
EXPORT_SYMBOL_NOKASAN(strcmp)
diff --git a/arch/arm64/lib/strlen.S b/arch/arm64/lib/strlen.S
index 87b0cb066915..ee3ed882dd79 100644
--- a/arch/arm64/lib/strlen.S
+++ b/arch/arm64/lib/strlen.S
@@ -44,7 +44,7 @@ pos .req x12
#define REP8_7f 0x7f7f7f7f7f7f7f7f
#define REP8_80 0x8080808080808080
-WEAK(strlen)
+SYM_FUNC_START_WEAK_PI(strlen)
mov zeroones, #REP8_01
bic src, srcin, #15
ands tmp1, srcin, #15
@@ -111,5 +111,5 @@ CPU_LE( lsr tmp2, tmp2, tmp1 ) /* Shift (tmp1 & 63). */
csinv data1, data1, xzr, le
csel data2, data2, data2a, le
b .Lrealigned
-ENDPIPROC(strlen)
+SYM_FUNC_END_PI(strlen)
EXPORT_SYMBOL_NOKASAN(strlen)
diff --git a/arch/arm64/lib/strncmp.S b/arch/arm64/lib/strncmp.S
index f571581888fa..2a7ee949ed47 100644
--- a/arch/arm64/lib/strncmp.S
+++ b/arch/arm64/lib/strncmp.S
@@ -52,7 +52,7 @@ limit_wd .req x13
mask .req x14
endloop .req x15
-WEAK(strncmp)
+SYM_FUNC_START_WEAK_PI(strncmp)
cbz limit, .Lret0
eor tmp1, src1, src2
mov zeroones, #REP8_01
@@ -295,5 +295,5 @@ CPU_BE( orr syndrome, diff, has_nul )
.Lret0:
mov result, #0
ret
-ENDPIPROC(strncmp)
+SYM_FUNC_END_PI(strncmp)
EXPORT_SYMBOL_NOKASAN(strncmp)
diff --git a/arch/arm64/lib/strnlen.S b/arch/arm64/lib/strnlen.S
index c0bac9493c68..b72913a99038 100644
--- a/arch/arm64/lib/strnlen.S
+++ b/arch/arm64/lib/strnlen.S
@@ -47,7 +47,7 @@ limit_wd .req x14
#define REP8_7f 0x7f7f7f7f7f7f7f7f
#define REP8_80 0x8080808080808080
-WEAK(strnlen)
+SYM_FUNC_START_WEAK_PI(strnlen)
cbz limit, .Lhit_limit
mov zeroones, #REP8_01
bic src, srcin, #15
@@ -156,5 +156,5 @@ CPU_LE( lsr tmp2, tmp2, tmp4 ) /* Shift (tmp1 & 63). */
.Lhit_limit:
mov len, limit
ret
-ENDPIPROC(strnlen)
+SYM_FUNC_END_PI(strnlen)
EXPORT_SYMBOL_NOKASAN(strnlen)
diff --git a/arch/arm64/lib/strrchr.S b/arch/arm64/lib/strrchr.S
index 794ac49ea433..13132d1ed6d1 100644
--- a/arch/arm64/lib/strrchr.S
+++ b/arch/arm64/lib/strrchr.S
@@ -18,7 +18,7 @@
* Returns:
* x0 - address of last occurrence of 'c' or 0
*/
-WEAK(strrchr)
+SYM_FUNC_START_WEAK_PI(strrchr)
mov x3, #0
and w1, w1, #0xff
1: ldrb w2, [x0], #1
@@ -29,5 +29,5 @@ WEAK(strrchr)
b 1b
2: mov x0, x3
ret
-ENDPIPROC(strrchr)
+SYM_FUNC_END_PI(strrchr)
EXPORT_SYMBOL_NOKASAN(strrchr)
diff --git a/arch/arm64/lib/tishift.S b/arch/arm64/lib/tishift.S
index 047622536535..a88613834fb0 100644
--- a/arch/arm64/lib/tishift.S
+++ b/arch/arm64/lib/tishift.S
@@ -7,7 +7,7 @@
#include <asm/assembler.h>
-ENTRY(__ashlti3)
+SYM_FUNC_START(__ashlti3)
cbz x2, 1f
mov x3, #64
sub x3, x3, x2
@@ -26,10 +26,10 @@ ENTRY(__ashlti3)
lsl x1, x0, x1
mov x0, x2
ret
-ENDPROC(__ashlti3)
+SYM_FUNC_END(__ashlti3)
EXPORT_SYMBOL(__ashlti3)
-ENTRY(__ashrti3)
+SYM_FUNC_START(__ashrti3)
cbz x2, 1f
mov x3, #64
sub x3, x3, x2
@@ -48,10 +48,10 @@ ENTRY(__ashrti3)
asr x0, x1, x0
mov x1, x2
ret
-ENDPROC(__ashrti3)
+SYM_FUNC_END(__ashrti3)
EXPORT_SYMBOL(__ashrti3)
-ENTRY(__lshrti3)
+SYM_FUNC_START(__lshrti3)
cbz x2, 1f
mov x3, #64
sub x3, x3, x2
@@ -70,5 +70,5 @@ ENTRY(__lshrti3)
lsr x0, x1, x0
mov x1, x2
ret
-ENDPROC(__lshrti3)
+SYM_FUNC_END(__lshrti3)
EXPORT_SYMBOL(__lshrti3)
diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S
index db767b072601..2d881f34dd9d 100644
--- a/arch/arm64/mm/cache.S
+++ b/arch/arm64/mm/cache.S
@@ -24,7 +24,7 @@
* - start - virtual start address of region
* - end - virtual end address of region
*/
-ENTRY(__flush_icache_range)
+SYM_FUNC_START(__flush_icache_range)
/* FALLTHROUGH */
/*
@@ -37,7 +37,7 @@ ENTRY(__flush_icache_range)
* - start - virtual start address of region
* - end - virtual end address of region
*/
-ENTRY(__flush_cache_user_range)
+SYM_FUNC_START(__flush_cache_user_range)
uaccess_ttbr0_enable x2, x3, x4
alternative_if ARM64_HAS_CACHE_IDC
dsb ishst
@@ -66,8 +66,8 @@ alternative_else_nop_endif
9:
mov x0, #-EFAULT
b 1b
-ENDPROC(__flush_icache_range)
-ENDPROC(__flush_cache_user_range)
+SYM_FUNC_END(__flush_icache_range)
+SYM_FUNC_END(__flush_cache_user_range)
/*
* invalidate_icache_range(start,end)
@@ -77,7 +77,7 @@ ENDPROC(__flush_cache_user_range)
* - start - virtual start address of region
* - end - virtual end address of region
*/
-ENTRY(invalidate_icache_range)
+SYM_FUNC_START(invalidate_icache_range)
alternative_if ARM64_HAS_CACHE_DIC
mov x0, xzr
isb
@@ -94,7 +94,7 @@ alternative_else_nop_endif
2:
mov x0, #-EFAULT
b 1b
-ENDPROC(invalidate_icache_range)
+SYM_FUNC_END(invalidate_icache_range)
/*
* __flush_dcache_area(kaddr, size)
@@ -105,10 +105,10 @@ ENDPROC(invalidate_icache_range)
* - kaddr - kernel address
* - size - size in question
*/
-ENTRY(__flush_dcache_area)
+SYM_FUNC_START_PI(__flush_dcache_area)
dcache_by_line_op civac, sy, x0, x1, x2, x3
ret
-ENDPIPROC(__flush_dcache_area)
+SYM_FUNC_END_PI(__flush_dcache_area)
/*
* __clean_dcache_area_pou(kaddr, size)
@@ -119,14 +119,14 @@ ENDPIPROC(__flush_dcache_area)
* - kaddr - kernel address
* - size - size in question
*/
-ENTRY(__clean_dcache_area_pou)
+SYM_FUNC_START(__clean_dcache_area_pou)
alternative_if ARM64_HAS_CACHE_IDC
dsb ishst
ret
alternative_else_nop_endif
dcache_by_line_op cvau, ish, x0, x1, x2, x3
ret
-ENDPROC(__clean_dcache_area_pou)
+SYM_FUNC_END(__clean_dcache_area_pou)
/*
* __inval_dcache_area(kaddr, size)
@@ -138,7 +138,8 @@ ENDPROC(__clean_dcache_area_pou)
* - kaddr - kernel address
* - size - size in question
*/
-ENTRY(__inval_dcache_area)
+SYM_FUNC_START_LOCAL(__dma_inv_area)
+SYM_FUNC_START_PI(__inval_dcache_area)
/* FALLTHROUGH */
/*
@@ -146,7 +147,6 @@ ENTRY(__inval_dcache_area)
* - start - virtual start address of region
* - size - size in question
*/
-__dma_inv_area:
add x1, x1, x0
dcache_line_size x2, x3
sub x3, x2, #1
@@ -165,8 +165,8 @@ __dma_inv_area:
b.lo 2b
dsb sy
ret
-ENDPIPROC(__inval_dcache_area)
-ENDPROC(__dma_inv_area)
+SYM_FUNC_END_PI(__inval_dcache_area)
+SYM_FUNC_END(__dma_inv_area)
/*
* __clean_dcache_area_poc(kaddr, size)
@@ -177,7 +177,8 @@ ENDPROC(__dma_inv_area)
* - kaddr - kernel address
* - size - size in question
*/
-ENTRY(__clean_dcache_area_poc)
+SYM_FUNC_START_LOCAL(__dma_clean_area)
+SYM_FUNC_START_PI(__clean_dcache_area_poc)
/* FALLTHROUGH */
/*
@@ -185,11 +186,10 @@ ENTRY(__clean_dcache_area_poc)
* - start - virtual start address of region
* - size - size in question
*/
-__dma_clean_area:
dcache_by_line_op cvac, sy, x0, x1, x2, x3
ret
-ENDPIPROC(__clean_dcache_area_poc)
-ENDPROC(__dma_clean_area)
+SYM_FUNC_END_PI(__clean_dcache_area_poc)
+SYM_FUNC_END(__dma_clean_area)
/*
* __clean_dcache_area_pop(kaddr, size)
@@ -200,13 +200,13 @@ ENDPROC(__dma_clean_area)
* - kaddr - kernel address
* - size - size in question
*/
-ENTRY(__clean_dcache_area_pop)
+SYM_FUNC_START_PI(__clean_dcache_area_pop)
alternative_if_not ARM64_HAS_DCPOP
b __clean_dcache_area_poc
alternative_else_nop_endif
dcache_by_line_op cvap, sy, x0, x1, x2, x3
ret
-ENDPIPROC(__clean_dcache_area_pop)
+SYM_FUNC_END_PI(__clean_dcache_area_pop)
/*
* __dma_flush_area(start, size)
@@ -216,10 +216,10 @@ ENDPIPROC(__clean_dcache_area_pop)
* - start - virtual start address of region
* - size - size in question
*/
-ENTRY(__dma_flush_area)
+SYM_FUNC_START_PI(__dma_flush_area)
dcache_by_line_op civac, sy, x0, x1, x2, x3
ret
-ENDPIPROC(__dma_flush_area)
+SYM_FUNC_END_PI(__dma_flush_area)
/*
* __dma_map_area(start, size, dir)
@@ -227,11 +227,11 @@ ENDPIPROC(__dma_flush_area)
* - size - size of region
* - dir - DMA direction
*/
-ENTRY(__dma_map_area)
+SYM_FUNC_START_PI(__dma_map_area)
cmp w2, #DMA_FROM_DEVICE
b.eq __dma_inv_area
b __dma_clean_area
-ENDPIPROC(__dma_map_area)
+SYM_FUNC_END_PI(__dma_map_area)
/*
* __dma_unmap_area(start, size, dir)
@@ -239,8 +239,8 @@ ENDPIPROC(__dma_map_area)
* - size - size of region
* - dir - DMA direction
*/
-ENTRY(__dma_unmap_area)
+SYM_FUNC_START_PI(__dma_unmap_area)
cmp w2, #DMA_TO_DEVICE
b.ne __dma_inv_area
ret
-ENDPIPROC(__dma_unmap_area)
+SYM_FUNC_END_PI(__dma_unmap_area)
diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c
index b5e329fde2dd..8ef73e89d514 100644
--- a/arch/arm64/mm/context.c
+++ b/arch/arm64/mm/context.c
@@ -29,15 +29,9 @@ static cpumask_t tlb_flush_pending;
#define ASID_MASK (~GENMASK(asid_bits - 1, 0))
#define ASID_FIRST_VERSION (1UL << asid_bits)
-#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
-#define NUM_USER_ASIDS (ASID_FIRST_VERSION >> 1)
-#define asid2idx(asid) (((asid) & ~ASID_MASK) >> 1)
-#define idx2asid(idx) (((idx) << 1) & ~ASID_MASK)
-#else
-#define NUM_USER_ASIDS (ASID_FIRST_VERSION)
+#define NUM_USER_ASIDS ASID_FIRST_VERSION
#define asid2idx(asid) ((asid) & ~ASID_MASK)
#define idx2asid(idx) asid2idx(idx)
-#endif
/* Get the ASIDBits supported by the current CPU */
static u32 get_cpu_asid_bits(void)
@@ -77,13 +71,33 @@ void verify_cpu_asid_bits(void)
}
}
+static void set_kpti_asid_bits(void)
+{
+ unsigned int len = BITS_TO_LONGS(NUM_USER_ASIDS) * sizeof(unsigned long);
+ /*
+ * In case of KPTI kernel/user ASIDs are allocated in
+ * pairs, the bottom bit distinguishes the two: if it
+ * is set, then the ASID will map only userspace. Thus
+ * mark even as reserved for kernel.
+ */
+ memset(asid_map, 0xaa, len);
+}
+
+static void set_reserved_asid_bits(void)
+{
+ if (arm64_kernel_unmapped_at_el0())
+ set_kpti_asid_bits();
+ else
+ bitmap_clear(asid_map, 0, NUM_USER_ASIDS);
+}
+
static void flush_context(void)
{
int i;
u64 asid;
/* Update the list of reserved ASIDs and the ASID bitmap. */
- bitmap_clear(asid_map, 0, NUM_USER_ASIDS);
+ set_reserved_asid_bits();
for_each_possible_cpu(i) {
asid = atomic64_xchg_relaxed(&per_cpu(active_asids, i), 0);
@@ -261,6 +275,14 @@ static int asids_init(void)
panic("Failed to allocate bitmap for %lu ASIDs\n",
NUM_USER_ASIDS);
+ /*
+ * We cannot call set_reserved_asid_bits() here because CPU
+ * caps are not finalized yet, so it is safer to assume KPTI
+ * and reserve kernel ASID's from beginning.
+ */
+ if (IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0))
+ set_kpti_asid_bits();
+
pr_info("ASID allocator initialised with %lu entries\n", NUM_USER_ASIDS);
return 0;
}
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 077b02a2d4d3..85566d32958f 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -445,7 +445,7 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
const struct fault_info *inf;
struct mm_struct *mm = current->mm;
vm_fault_t fault, major = 0;
- unsigned long vm_flags = VM_READ | VM_WRITE;
+ unsigned long vm_flags = VM_READ | VM_WRITE | VM_EXEC;
unsigned int mm_flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
if (kprobe_page_fault(regs, esr))
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 5a3b15a14a7f..40797cbfba2d 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1070,7 +1070,6 @@ void arch_remove_memory(int nid, u64 start, u64 size,
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct zone *zone;
/*
* FIXME: Cleanup page tables (also in arch_add_memory() in case
@@ -1079,7 +1078,6 @@ void arch_remove_memory(int nid, u64 start, u64 size,
* unplug. ARCH_ENABLE_MEMORY_HOTREMOVE must not be
* unlocked yet.
*/
- zone = page_zone(pfn_to_page(start_pfn));
- __remove_pages(zone, start_pfn, nr_pages, altmap);
+ __remove_pages(start_pfn, nr_pages, altmap);
}
#endif
diff --git a/arch/arm64/mm/pageattr.c b/arch/arm64/mm/pageattr.c
index 9ce7bd9d4d9c..250c49008d73 100644
--- a/arch/arm64/mm/pageattr.c
+++ b/arch/arm64/mm/pageattr.c
@@ -54,7 +54,7 @@ static int change_memory_common(unsigned long addr, int numpages,
pgprot_t set_mask, pgprot_t clear_mask)
{
unsigned long start = addr;
- unsigned long size = PAGE_SIZE*numpages;
+ unsigned long size = PAGE_SIZE * numpages;
unsigned long end = start + size;
struct vm_struct *area;
int i;
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index a1e0592d1fbc..aafed6902411 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -42,7 +42,14 @@
#define TCR_KASAN_FLAGS 0
#endif
-#define MAIR(attr, mt) ((attr) << ((mt) * 8))
+/* Default MAIR_EL1 */
+#define MAIR_EL1_SET \
+ (MAIR_ATTRIDX(MAIR_ATTR_DEVICE_nGnRnE, MT_DEVICE_nGnRnE) | \
+ MAIR_ATTRIDX(MAIR_ATTR_DEVICE_nGnRE, MT_DEVICE_nGnRE) | \
+ MAIR_ATTRIDX(MAIR_ATTR_DEVICE_GRE, MT_DEVICE_GRE) | \
+ MAIR_ATTRIDX(MAIR_ATTR_NORMAL_NC, MT_NORMAL_NC) | \
+ MAIR_ATTRIDX(MAIR_ATTR_NORMAL, MT_NORMAL) | \
+ MAIR_ATTRIDX(MAIR_ATTR_NORMAL_WT, MT_NORMAL_WT))
#ifdef CONFIG_CPU_PM
/**
@@ -50,7 +57,7 @@
*
* x0: virtual address of context pointer
*/
-ENTRY(cpu_do_suspend)
+SYM_FUNC_START(cpu_do_suspend)
mrs x2, tpidr_el0
mrs x3, tpidrro_el0
mrs x4, contextidr_el1
@@ -74,7 +81,7 @@ alternative_endif
stp x10, x11, [x0, #64]
stp x12, x13, [x0, #80]
ret
-ENDPROC(cpu_do_suspend)
+SYM_FUNC_END(cpu_do_suspend)
/**
* cpu_do_resume - restore CPU register context
@@ -82,7 +89,7 @@ ENDPROC(cpu_do_suspend)
* x0: Address of context pointer
*/
.pushsection ".idmap.text", "awx"
-ENTRY(cpu_do_resume)
+SYM_FUNC_START(cpu_do_resume)
ldp x2, x3, [x0]
ldp x4, x5, [x0, #16]
ldp x6, x8, [x0, #32]
@@ -131,7 +138,7 @@ alternative_else_nop_endif
isb
ret
-ENDPROC(cpu_do_resume)
+SYM_FUNC_END(cpu_do_resume)
.popsection
#endif
@@ -142,7 +149,7 @@ ENDPROC(cpu_do_resume)
*
* - pgd_phys - physical address of new TTB
*/
-ENTRY(cpu_do_switch_mm)
+SYM_FUNC_START(cpu_do_switch_mm)
mrs x2, ttbr1_el1
mmid x1, x1 // get mm->context.id
phys_to_ttbr x3, x0
@@ -161,7 +168,7 @@ alternative_else_nop_endif
msr ttbr0_el1, x3 // now update TTBR0
isb
b post_ttbr_update_workaround // Back to C code...
-ENDPROC(cpu_do_switch_mm)
+SYM_FUNC_END(cpu_do_switch_mm)
.pushsection ".idmap.text", "awx"
@@ -182,7 +189,7 @@ ENDPROC(cpu_do_switch_mm)
* This is the low-level counterpart to cpu_replace_ttbr1, and should not be
* called by anything else. It can only be executed from a TTBR0 mapping.
*/
-ENTRY(idmap_cpu_replace_ttbr1)
+SYM_FUNC_START(idmap_cpu_replace_ttbr1)
save_and_disable_daif flags=x2
__idmap_cpu_set_reserved_ttbr1 x1, x3
@@ -194,7 +201,7 @@ ENTRY(idmap_cpu_replace_ttbr1)
restore_daif x2
ret
-ENDPROC(idmap_cpu_replace_ttbr1)
+SYM_FUNC_END(idmap_cpu_replace_ttbr1)
.popsection
#ifdef CONFIG_UNMAP_KERNEL_AT_EL0
@@ -222,7 +229,7 @@ ENDPROC(idmap_cpu_replace_ttbr1)
*/
__idmap_kpti_flag:
.long 1
-ENTRY(idmap_kpti_install_ng_mappings)
+SYM_FUNC_START(idmap_kpti_install_ng_mappings)
cpu .req w0
num_cpus .req w1
swapper_pa .req x2
@@ -250,15 +257,15 @@ ENTRY(idmap_kpti_install_ng_mappings)
/* We're the boot CPU. Wait for the others to catch up */
sevl
1: wfe
- ldaxr w18, [flag_ptr]
- eor w18, w18, num_cpus
- cbnz w18, 1b
+ ldaxr w17, [flag_ptr]
+ eor w17, w17, num_cpus
+ cbnz w17, 1b
/* We need to walk swapper, so turn off the MMU. */
pre_disable_mmu_workaround
- mrs x18, sctlr_el1
- bic x18, x18, #SCTLR_ELx_M
- msr sctlr_el1, x18
+ mrs x17, sctlr_el1
+ bic x17, x17, #SCTLR_ELx_M
+ msr sctlr_el1, x17
isb
/* Everybody is enjoying the idmap, so we can rewrite swapper. */
@@ -281,9 +288,9 @@ skip_pgd:
isb
/* We're done: fire up the MMU again */
- mrs x18, sctlr_el1
- orr x18, x18, #SCTLR_ELx_M
- msr sctlr_el1, x18
+ mrs x17, sctlr_el1
+ orr x17, x17, #SCTLR_ELx_M
+ msr sctlr_el1, x17
isb
/*
@@ -353,47 +360,48 @@ skip_pte:
b.ne do_pte
b next_pmd
+ .unreq cpu
+ .unreq num_cpus
+ .unreq swapper_pa
+ .unreq cur_pgdp
+ .unreq end_pgdp
+ .unreq pgd
+ .unreq cur_pudp
+ .unreq end_pudp
+ .unreq pud
+ .unreq cur_pmdp
+ .unreq end_pmdp
+ .unreq pmd
+ .unreq cur_ptep
+ .unreq end_ptep
+ .unreq pte
+
/* Secondary CPUs end up here */
__idmap_kpti_secondary:
/* Uninstall swapper before surgery begins */
- __idmap_cpu_set_reserved_ttbr1 x18, x17
+ __idmap_cpu_set_reserved_ttbr1 x16, x17
/* Increment the flag to let the boot CPU we're ready */
-1: ldxr w18, [flag_ptr]
- add w18, w18, #1
- stxr w17, w18, [flag_ptr]
+1: ldxr w16, [flag_ptr]
+ add w16, w16, #1
+ stxr w17, w16, [flag_ptr]
cbnz w17, 1b
/* Wait for the boot CPU to finish messing around with swapper */
sevl
1: wfe
- ldxr w18, [flag_ptr]
- cbnz w18, 1b
+ ldxr w16, [flag_ptr]
+ cbnz w16, 1b
/* All done, act like nothing happened */
- offset_ttbr1 swapper_ttb, x18
+ offset_ttbr1 swapper_ttb, x16
msr ttbr1_el1, swapper_ttb
isb
ret
- .unreq cpu
- .unreq num_cpus
- .unreq swapper_pa
.unreq swapper_ttb
.unreq flag_ptr
- .unreq cur_pgdp
- .unreq end_pgdp
- .unreq pgd
- .unreq cur_pudp
- .unreq end_pudp
- .unreq pud
- .unreq cur_pmdp
- .unreq end_pmdp
- .unreq pmd
- .unreq cur_ptep
- .unreq end_ptep
- .unreq pte
-ENDPROC(idmap_kpti_install_ng_mappings)
+SYM_FUNC_END(idmap_kpti_install_ng_mappings)
.popsection
#endif
@@ -404,7 +412,7 @@ ENDPROC(idmap_kpti_install_ng_mappings)
* value of the SCTLR_EL1 register.
*/
.pushsection ".idmap.text", "awx"
-ENTRY(__cpu_setup)
+SYM_FUNC_START(__cpu_setup)
tlbi vmalle1 // Invalidate local TLB
dsb nsh
@@ -416,23 +424,9 @@ ENTRY(__cpu_setup)
enable_dbg // since this is per-cpu
reset_pmuserenr_el0 x0 // Disable PMU access from EL0
/*
- * Memory region attributes for LPAE:
- *
- * n = AttrIndx[2:0]
- * n MAIR
- * DEVICE_nGnRnE 000 00000000
- * DEVICE_nGnRE 001 00000100
- * DEVICE_GRE 010 00001100
- * NORMAL_NC 011 01000100
- * NORMAL 100 11111111
- * NORMAL_WT 101 10111011
+ * Memory region attributes
*/
- ldr x5, =MAIR(0x00, MT_DEVICE_nGnRnE) | \
- MAIR(0x04, MT_DEVICE_nGnRE) | \
- MAIR(0x0c, MT_DEVICE_GRE) | \
- MAIR(0x44, MT_NORMAL_NC) | \
- MAIR(0xff, MT_NORMAL) | \
- MAIR(0xbb, MT_NORMAL_WT)
+ mov_q x5, MAIR_EL1_SET
msr mair_el1, x5
/*
* Prepare SCTLR
@@ -475,4 +469,4 @@ ENTRY(__cpu_setup)
#endif /* CONFIG_ARM64_HW_AFDBM */
msr tcr_el1, x10
ret // return to head.S
-ENDPROC(__cpu_setup)
+SYM_FUNC_END(__cpu_setup)
diff --git a/arch/arm64/xen/hypercall.S b/arch/arm64/xen/hypercall.S
index c5f05c4a4d00..5b09aca55108 100644
--- a/arch/arm64/xen/hypercall.S
+++ b/arch/arm64/xen/hypercall.S
@@ -56,11 +56,11 @@
#define XEN_IMM 0xEA1
#define HYPERCALL_SIMPLE(hypercall) \
-ENTRY(HYPERVISOR_##hypercall) \
+SYM_FUNC_START(HYPERVISOR_##hypercall) \
mov x16, #__HYPERVISOR_##hypercall; \
hvc XEN_IMM; \
ret; \
-ENDPROC(HYPERVISOR_##hypercall)
+SYM_FUNC_END(HYPERVISOR_##hypercall)
#define HYPERCALL0 HYPERCALL_SIMPLE
#define HYPERCALL1 HYPERCALL_SIMPLE
@@ -86,7 +86,7 @@ HYPERCALL2(multicall);
HYPERCALL2(vm_assist);
HYPERCALL3(dm_op);
-ENTRY(privcmd_call)
+SYM_FUNC_START(privcmd_call)
mov x16, x0
mov x0, x1
mov x1, x2
@@ -109,4 +109,4 @@ ENTRY(privcmd_call)
*/
uaccess_ttbr0_disable x6, x7
ret
-ENDPROC(privcmd_call);
+SYM_FUNC_END(privcmd_call);
diff --git a/arch/c6x/include/asm/vmalloc.h b/arch/c6x/include/asm/vmalloc.h
new file mode 100644
index 000000000000..26c6c6696bbd
--- /dev/null
+++ b/arch/c6x/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_C6X_VMALLOC_H
+#define _ASM_C6X_VMALLOC_H
+
+#endif /* _ASM_C6X_VMALLOC_H */
diff --git a/arch/c6x/kernel/entry.S b/arch/c6x/kernel/entry.S
index 4332a10aec6c..fb154d19625b 100644
--- a/arch/c6x/kernel/entry.S
+++ b/arch/c6x/kernel/entry.S
@@ -18,7 +18,7 @@
#define DP B14
#define SP B15
-#ifndef CONFIG_PREEMPT
+#ifndef CONFIG_PREEMPTION
#define resume_kernel restore_all
#endif
@@ -287,7 +287,7 @@ work_notifysig:
;; is a little bit different
;;
ENTRY(ret_from_exception)
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
MASK_INT B2
#endif
@@ -557,7 +557,7 @@ ENDPROC(_nmi_handler)
;;
;; Jump to schedule() then return to ret_from_isr
;;
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
resume_kernel:
GET_THREAD_INFO A12
LDW .D1T1 *+A12(THREAD_INFO_PREEMPT_COUNT),A1
@@ -582,7 +582,7 @@ preempt_schedule:
B .S2 preempt_schedule_irq
#endif
ADDKPC .S2 preempt_schedule,B3,4
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
ENTRY(enable_exception)
DINT
diff --git a/arch/csky/include/asm/vmalloc.h b/arch/csky/include/asm/vmalloc.h
new file mode 100644
index 000000000000..43dca6336b4c
--- /dev/null
+++ b/arch/csky/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_CSKY_VMALLOC_H
+#define _ASM_CSKY_VMALLOC_H
+
+#endif /* _ASM_CSKY_VMALLOC_H */
diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S
index a7a5b67df898..007706328000 100644
--- a/arch/csky/kernel/entry.S
+++ b/arch/csky/kernel/entry.S
@@ -277,7 +277,7 @@ ENTRY(csky_irq)
zero_fp
psrset ee
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
mov r9, sp /* Get current stack pointer */
bmaski r10, THREAD_SHIFT
andn r9, r10 /* Get thread_info */
@@ -294,7 +294,7 @@ ENTRY(csky_irq)
mov a0, sp
jbsr csky_do_IRQ
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
subi r12, 1
stw r12, (r9, TINFO_PREEMPT)
cmpnei r12, 0
diff --git a/arch/csky/kernel/setup.c b/arch/csky/kernel/setup.c
index 23ee604aafdb..52eaf31ba27f 100644
--- a/arch/csky/kernel/setup.c
+++ b/arch/csky/kernel/setup.c
@@ -136,10 +136,6 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_HIGHMEM
kmap_init();
#endif
-
-#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
}
unsigned long va_pa_offset;
diff --git a/arch/h8300/include/asm/vmalloc.h b/arch/h8300/include/asm/vmalloc.h
new file mode 100644
index 000000000000..08a55c1dfa23
--- /dev/null
+++ b/arch/h8300/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_H8300_VMALLOC_H
+#define _ASM_H8300_VMALLOC_H
+
+#endif /* _ASM_H8300_VMALLOC_H */
diff --git a/arch/h8300/kernel/entry.S b/arch/h8300/kernel/entry.S
index 4ade5f8299ba..c6e289b5f1f2 100644
--- a/arch/h8300/kernel/entry.S
+++ b/arch/h8300/kernel/entry.S
@@ -284,12 +284,12 @@ badsys:
mov.l er0,@(LER0:16,sp)
bra resume_userspace
-#if !defined(CONFIG_PREEMPT)
+#if !defined(CONFIG_PREEMPTION)
#define resume_kernel restore_all
#endif
ret_from_exception:
-#if defined(CONFIG_PREEMPT)
+#if defined(CONFIG_PREEMPTION)
orc #0xc0,ccr
#endif
ret_from_interrupt:
@@ -319,7 +319,7 @@ work_resched:
restore_all:
RESTORE_ALL /* Does RTE */
-#if defined(CONFIG_PREEMPT)
+#if defined(CONFIG_PREEMPTION)
resume_kernel:
mov.l @(TI_PRE_COUNT:16,er4),er0
bne restore_all:8
diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h
index 12cd9231c4b8..0231d69c8bf2 100644
--- a/arch/hexagon/include/asm/atomic.h
+++ b/arch/hexagon/include/asm/atomic.h
@@ -91,7 +91,7 @@ static inline void atomic_##op(int i, atomic_t *v) \
"1: %0 = memw_locked(%1);\n" \
" %0 = "#op "(%0,%2);\n" \
" memw_locked(%1,P3)=%0;\n" \
- " if !P3 jump 1b;\n" \
+ " if (!P3) jump 1b;\n" \
: "=&r" (output) \
: "r" (&v->counter), "r" (i) \
: "memory", "p3" \
@@ -107,7 +107,7 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
"1: %0 = memw_locked(%1);\n" \
" %0 = "#op "(%0,%2);\n" \
" memw_locked(%1,P3)=%0;\n" \
- " if !P3 jump 1b;\n" \
+ " if (!P3) jump 1b;\n" \
: "=&r" (output) \
: "r" (&v->counter), "r" (i) \
: "memory", "p3" \
@@ -124,7 +124,7 @@ static inline int atomic_fetch_##op(int i, atomic_t *v) \
"1: %0 = memw_locked(%2);\n" \
" %1 = "#op "(%0,%3);\n" \
" memw_locked(%2,P3)=%1;\n" \
- " if !P3 jump 1b;\n" \
+ " if (!P3) jump 1b;\n" \
: "=&r" (output), "=&r" (val) \
: "r" (&v->counter), "r" (i) \
: "memory", "p3" \
@@ -173,7 +173,7 @@ static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
" }"
" memw_locked(%2, p3) = %1;"
" {"
- " if !p3 jump 1b;"
+ " if (!p3) jump 1b;"
" }"
"2:"
: "=&r" (__oldval), "=&r" (tmp)
diff --git a/arch/hexagon/include/asm/bitops.h b/arch/hexagon/include/asm/bitops.h
index 47384b094b94..71429f756af0 100644
--- a/arch/hexagon/include/asm/bitops.h
+++ b/arch/hexagon/include/asm/bitops.h
@@ -38,7 +38,7 @@ static inline int test_and_clear_bit(int nr, volatile void *addr)
"1: R12 = memw_locked(R10);\n"
" { P0 = tstbit(R12,R11); R12 = clrbit(R12,R11); }\n"
" memw_locked(R10,P1) = R12;\n"
- " {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
+ " {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
: "=&r" (oldval)
: "r" (addr), "r" (nr)
: "r10", "r11", "r12", "p0", "p1", "memory"
@@ -62,7 +62,7 @@ static inline int test_and_set_bit(int nr, volatile void *addr)
"1: R12 = memw_locked(R10);\n"
" { P0 = tstbit(R12,R11); R12 = setbit(R12,R11); }\n"
" memw_locked(R10,P1) = R12;\n"
- " {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
+ " {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
: "=&r" (oldval)
: "r" (addr), "r" (nr)
: "r10", "r11", "r12", "p0", "p1", "memory"
@@ -88,7 +88,7 @@ static inline int test_and_change_bit(int nr, volatile void *addr)
"1: R12 = memw_locked(R10);\n"
" { P0 = tstbit(R12,R11); R12 = togglebit(R12,R11); }\n"
" memw_locked(R10,P1) = R12;\n"
- " {if !P1 jump 1b; %0 = mux(P0,#1,#0);}\n"
+ " {if (!P1) jump 1b; %0 = mux(P0,#1,#0);}\n"
: "=&r" (oldval)
: "r" (addr), "r" (nr)
: "r10", "r11", "r12", "p0", "p1", "memory"
@@ -223,7 +223,7 @@ static inline int ffs(int x)
int r;
asm("{ P0 = cmp.eq(%1,#0); %0 = ct0(%1);}\n"
- "{ if P0 %0 = #0; if !P0 %0 = add(%0,#1);}\n"
+ "{ if (P0) %0 = #0; if (!P0) %0 = add(%0,#1);}\n"
: "=&r" (r)
: "r" (x)
: "p0");
diff --git a/arch/hexagon/include/asm/cmpxchg.h b/arch/hexagon/include/asm/cmpxchg.h
index 6091322c3af9..92b8a02e588a 100644
--- a/arch/hexagon/include/asm/cmpxchg.h
+++ b/arch/hexagon/include/asm/cmpxchg.h
@@ -30,7 +30,7 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
__asm__ __volatile__ (
"1: %0 = memw_locked(%1);\n" /* load into retval */
" memw_locked(%1,P0) = %2;\n" /* store into memory */
- " if !P0 jump 1b;\n"
+ " if (!P0) jump 1b;\n"
: "=&r" (retval)
: "r" (ptr), "r" (x)
: "memory", "p0"
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index cb635216a732..0191f7c7193e 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -16,7 +16,7 @@
/* For example: %1 = %4 */ \
insn \
"2: memw_locked(%3,p2) = %1;\n" \
- " if !p2 jump 1b;\n" \
+ " if (!p2) jump 1b;\n" \
" %1 = #0;\n" \
"3:\n" \
".section .fixup,\"ax\"\n" \
@@ -84,10 +84,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval,
"1: %1 = memw_locked(%3)\n"
" {\n"
" p2 = cmp.eq(%1,%4)\n"
- " if !p2.new jump:NT 3f\n"
+ " if (!p2.new) jump:NT 3f\n"
" }\n"
"2: memw_locked(%3,p2) = %5\n"
- " if !p2 jump 1b\n"
+ " if (!p2) jump 1b\n"
"3:\n"
".section .fixup,\"ax\"\n"
"4: %0 = #%6\n"
diff --git a/arch/hexagon/include/asm/io.h b/arch/hexagon/include/asm/io.h
index 539e3efcf39c..bda2a9c2df78 100644
--- a/arch/hexagon/include/asm/io.h
+++ b/arch/hexagon/include/asm/io.h
@@ -172,7 +172,7 @@ static inline void writel(u32 data, volatile void __iomem *addr)
#define writel_relaxed __raw_writel
void __iomem *ioremap(unsigned long phys_addr, unsigned long size);
-#define ioremap_nocache ioremap
+#define ioremap_uc(X, Y) ioremap((X), (Y))
#define __raw_writel writel
diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h
index bfe07d842ff3..ef103b73bec8 100644
--- a/arch/hexagon/include/asm/spinlock.h
+++ b/arch/hexagon/include/asm/spinlock.h
@@ -30,9 +30,9 @@ static inline void arch_read_lock(arch_rwlock_t *lock)
__asm__ __volatile__(
"1: R6 = memw_locked(%0);\n"
" { P3 = cmp.ge(R6,#0); R6 = add(R6,#1);}\n"
- " { if !P3 jump 1b; }\n"
+ " { if (!P3) jump 1b; }\n"
" memw_locked(%0,P3) = R6;\n"
- " { if !P3 jump 1b; }\n"
+ " { if (!P3) jump 1b; }\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@@ -46,7 +46,7 @@ static inline void arch_read_unlock(arch_rwlock_t *lock)
"1: R6 = memw_locked(%0);\n"
" R6 = add(R6,#-1);\n"
" memw_locked(%0,P3) = R6\n"
- " if !P3 jump 1b;\n"
+ " if (!P3) jump 1b;\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@@ -61,7 +61,7 @@ static inline int arch_read_trylock(arch_rwlock_t *lock)
__asm__ __volatile__(
" R6 = memw_locked(%1);\n"
" { %0 = #0; P3 = cmp.ge(R6,#0); R6 = add(R6,#1);}\n"
- " { if !P3 jump 1f; }\n"
+ " { if (!P3) jump 1f; }\n"
" memw_locked(%1,P3) = R6;\n"
" { %0 = P3 }\n"
"1:\n"
@@ -78,9 +78,9 @@ static inline void arch_write_lock(arch_rwlock_t *lock)
__asm__ __volatile__(
"1: R6 = memw_locked(%0)\n"
" { P3 = cmp.eq(R6,#0); R6 = #-1;}\n"
- " { if !P3 jump 1b; }\n"
+ " { if (!P3) jump 1b; }\n"
" memw_locked(%0,P3) = R6;\n"
- " { if !P3 jump 1b; }\n"
+ " { if (!P3) jump 1b; }\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@@ -94,7 +94,7 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
__asm__ __volatile__(
" R6 = memw_locked(%1)\n"
" { %0 = #0; P3 = cmp.eq(R6,#0); R6 = #-1;}\n"
- " { if !P3 jump 1f; }\n"
+ " { if (!P3) jump 1f; }\n"
" memw_locked(%1,P3) = R6;\n"
" %0 = P3;\n"
"1:\n"
@@ -117,9 +117,9 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
__asm__ __volatile__(
"1: R6 = memw_locked(%0);\n"
" P3 = cmp.eq(R6,#0);\n"
- " { if !P3 jump 1b; R6 = #1; }\n"
+ " { if (!P3) jump 1b; R6 = #1; }\n"
" memw_locked(%0,P3) = R6;\n"
- " { if !P3 jump 1b; }\n"
+ " { if (!P3) jump 1b; }\n"
:
: "r" (&lock->lock)
: "memory", "r6", "p3"
@@ -139,7 +139,7 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
__asm__ __volatile__(
" R6 = memw_locked(%1);\n"
" P3 = cmp.eq(R6,#0);\n"
- " { if !P3 jump 1f; R6 = #1; %0 = #0; }\n"
+ " { if (!P3) jump 1f; R6 = #1; %0 = #0; }\n"
" memw_locked(%1,P3) = R6;\n"
" %0 = P3;\n"
"1:\n"
diff --git a/arch/hexagon/include/asm/vmalloc.h b/arch/hexagon/include/asm/vmalloc.h
new file mode 100644
index 000000000000..7b04609e525c
--- /dev/null
+++ b/arch/hexagon/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_HEXAGON_VMALLOC_H
+#define _ASM_HEXAGON_VMALLOC_H
+
+#endif /* _ASM_HEXAGON_VMALLOC_H */
diff --git a/arch/hexagon/kernel/stacktrace.c b/arch/hexagon/kernel/stacktrace.c
index 35f29423fda8..5ed02f699479 100644
--- a/arch/hexagon/kernel/stacktrace.c
+++ b/arch/hexagon/kernel/stacktrace.c
@@ -11,8 +11,6 @@
#include <linux/thread_info.h>
#include <linux/module.h>
-register unsigned long current_frame_pointer asm("r30");
-
struct stackframe {
unsigned long fp;
unsigned long rets;
@@ -30,7 +28,7 @@ void save_stack_trace(struct stack_trace *trace)
low = (unsigned long)task_stack_page(current);
high = low + THREAD_SIZE;
- fp = current_frame_pointer;
+ fp = (unsigned long)__builtin_frame_address(0);
while (fp >= low && fp <= (high - sizeof(*frame))) {
frame = (struct stackframe *)fp;
diff --git a/arch/hexagon/kernel/vm_entry.S b/arch/hexagon/kernel/vm_entry.S
index 12242c27e2df..554371d92bed 100644
--- a/arch/hexagon/kernel/vm_entry.S
+++ b/arch/hexagon/kernel/vm_entry.S
@@ -265,12 +265,12 @@ event_dispatch:
* should be in the designated register (usually R19)
*
* If we were in kernel mode, we don't need to check scheduler
- * or signals if CONFIG_PREEMPT is not set. If set, then it has
+ * or signals if CONFIG_PREEMPTION is not set. If set, then it has
* to jump to a need_resched kind of block.
- * BTW, CONFIG_PREEMPT is not supported yet.
+ * BTW, CONFIG_PREEMPTION is not supported yet.
*/
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
R0 = #VM_INT_DISABLE
trap1(#HVM_TRAP1_VMSETIE)
#endif
@@ -369,7 +369,7 @@ ret_from_fork:
R26.L = #LO(do_work_pending);
R0 = #VM_INT_DISABLE;
}
- if P0 jump check_work_pending
+ if (P0) jump check_work_pending
{
R0 = R25;
callr R24
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index f886d4dc9d55..b66ba907019c 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -38,7 +38,10 @@ int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
-extern unsigned long acpi_wakeup_address;
+static inline unsigned long acpi_get_wakeup_address(void)
+{
+ return 0;
+}
/*
* Record the cpei override flag and current logical cpu. This is
diff --git a/arch/ia64/include/asm/vga.h b/arch/ia64/include/asm/vga.h
index 30cb373f3de8..64ce0b971a0a 100644
--- a/arch/ia64/include/asm/vga.h
+++ b/arch/ia64/include/asm/vga.h
@@ -18,7 +18,7 @@
extern unsigned long vga_console_iobase;
extern unsigned long vga_console_membase;
-#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap_nocache(vga_console_membase + (x), s))
+#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap(vga_console_membase + (x), s))
#define vga_readb(x) (*(x))
#define vga_writeb(x,y) (*(y) = (x))
diff --git a/arch/ia64/include/asm/vmalloc.h b/arch/ia64/include/asm/vmalloc.h
new file mode 100644
index 000000000000..a2b51141ad28
--- /dev/null
+++ b/arch/ia64/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_IA64_VMALLOC_H
+#define _ASM_IA64_VMALLOC_H
+
+#endif /* _ASM_IA64_VMALLOC_H */
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 70d1587ddcd4..a5636524af76 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -42,8 +42,6 @@ int acpi_lapic;
unsigned int acpi_cpei_override;
unsigned int acpi_cpei_phys_cpuid;
-unsigned long acpi_wakeup_address = 0;
-
#define ACPI_MAX_PLATFORM_INTERRUPTS 256
/* Array to record platform interrupt vectors for generic interrupt routing. */
diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c
index f80eb7fb544d..258d7b70c0f3 100644
--- a/arch/ia64/kernel/cyclone.c
+++ b/arch/ia64/kernel/cyclone.c
@@ -50,7 +50,7 @@ int __init init_cyclone_clock(void)
/* find base address */
offset = (CYCLONE_CBAR_ADDR);
- reg = ioremap_nocache(offset, sizeof(u64));
+ reg = ioremap(offset, sizeof(u64));
if(!reg){
printk(KERN_ERR "Summit chipset: Could not find valid CBAR"
" register.\n");
@@ -68,7 +68,7 @@ int __init init_cyclone_clock(void)
/* setup PMCC */
offset = (base + CYCLONE_PMCC_OFFSET);
- reg = ioremap_nocache(offset, sizeof(u64));
+ reg = ioremap(offset, sizeof(u64));
if(!reg){
printk(KERN_ERR "Summit chipset: Could not find valid PMCC"
" register.\n");
@@ -80,7 +80,7 @@ int __init init_cyclone_clock(void)
/* setup MPCS */
offset = (base + CYCLONE_MPCS_OFFSET);
- reg = ioremap_nocache(offset, sizeof(u64));
+ reg = ioremap(offset, sizeof(u64));
if(!reg){
printk(KERN_ERR "Summit chipset: Could not find valid MPCS"
" register.\n");
@@ -92,7 +92,7 @@ int __init init_cyclone_clock(void)
/* map in cyclone_timer */
offset = (base + CYCLONE_MPMC_OFFSET);
- cyclone_timer = ioremap_nocache(offset, sizeof(u32));
+ cyclone_timer = ioremap(offset, sizeof(u32));
if(!cyclone_timer){
printk(KERN_ERR "Summit chipset: Could not find valid MPMC"
" register.\n");
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index a9992be5718b..2ac926331500 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -670,12 +670,12 @@ GLOBAL_ENTRY(ia64_leave_syscall)
*
* p6 controls whether current_thread_info()->flags needs to be check for
* extra work. We always check for extra work when returning to user-level.
- * With CONFIG_PREEMPT, we also check for extra work when the preempt_count
+ * With CONFIG_PREEMPTION, we also check for extra work when the preempt_count
* is 0. After extra work processing has been completed, execution
* resumes at ia64_work_processed_syscall with p6 set to 1 if the extra-work-check
* needs to be redone.
*/
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
RSM_PSR_I(p0, r2, r18) // disable interrupts
cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall
(pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13
@@ -685,7 +685,7 @@ GLOBAL_ENTRY(ia64_leave_syscall)
(pUStk) mov r21=0 // r21 <- 0
;;
cmp.eq p6,p0=r21,r0 // p6 <- pUStk || (preempt_count == 0)
-#else /* !CONFIG_PREEMPT */
+#else /* !CONFIG_PREEMPTION */
RSM_PSR_I(pUStk, r2, r18)
cmp.eq pLvSys,p0=r0,r0 // pLvSys=1: leave from syscall
(pUStk) cmp.eq.unc p6,p0=r0,r0 // p6 <- pUStk
@@ -814,12 +814,12 @@ GLOBAL_ENTRY(ia64_leave_kernel)
*
* p6 controls whether current_thread_info()->flags needs to be check for
* extra work. We always check for extra work when returning to user-level.
- * With CONFIG_PREEMPT, we also check for extra work when the preempt_count
+ * With CONFIG_PREEMPTION, we also check for extra work when the preempt_count
* is 0. After extra work processing has been completed, execution
* resumes at .work_processed_syscall with p6 set to 1 if the extra-work-check
* needs to be redone.
*/
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
RSM_PSR_I(p0, r17, r31) // disable interrupts
cmp.eq p0,pLvSys=r0,r0 // pLvSys=0: leave from kernel
(pKStk) adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13
@@ -1120,7 +1120,7 @@ skip_rbs_switch:
/*
* On entry:
- * r20 = &current->thread_info->pre_count (if CONFIG_PREEMPT)
+ * r20 = &current->thread_info->pre_count (if CONFIG_PREEMPTION)
* r31 = current->thread_info->flags
* On exit:
* p6 = TRUE if work-pending-check needs to be redone
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index b8356edbde65..a6d6a0556f08 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -841,7 +841,7 @@ static int __kprobes pre_kprobes_handler(struct die_args *args)
return 1;
}
-#if !defined(CONFIG_PREEMPT)
+#if !defined(CONFIG_PREEMPTION)
if (p->ainsn.inst_flag == INST_FLAG_BOOSTABLE && !p->post_handler) {
/* Boost up -- we can execute copied instructions directly */
ia64_psr(regs)->ri = p->ainsn.slot;
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index c49fcef754de..4009383453f7 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -608,9 +608,6 @@ setup_arch (char **cmdline_p)
#ifdef CONFIG_VT
if (!conswitchp) {
-# if defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-# endif
# if defined(CONFIG_VGA_CONSOLE)
/*
* Non-legacy systems may route legacy VGA MMIO range to system
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
index 36d5faf4c86c..042911e670b8 100644
--- a/arch/ia64/kernel/syscalls/syscall.tbl
+++ b/arch/ia64/kernel/syscalls/syscall.tbl
@@ -356,3 +356,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
# 435 reserved for clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 58fd67068bac..b01d68a2d5d9 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -689,9 +689,7 @@ void arch_remove_memory(int nid, u64 start, u64 size,
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct zone *zone;
- zone = page_zone(pfn_to_page(start_pfn));
- __remove_pages(zone, start_pfn, nr_pages, altmap);
+ __remove_pages(start_pfn, nr_pages, altmap);
}
#endif
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 6663f1741798..6ad6cdac74b3 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -14,6 +14,7 @@ config M68K
select HAVE_AOUT if MMU
select HAVE_ASM_MODVERSIONS
select HAVE_DEBUG_BUGVERBOSE
+ select HAVE_COPY_THREAD_TLS
select GENERIC_IRQ_SHOW
select GENERIC_ATOMIC64
select HAVE_UID16
diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig
index 619d30d663a2..e1134c3e0b69 100644
--- a/arch/m68k/configs/amiga_defconfig
+++ b/arch/m68k/configs/amiga_defconfig
@@ -562,6 +562,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -574,7 +575,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -612,6 +613,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -620,6 +624,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -651,4 +656,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig
index caa0558abcdb..484cb1643df1 100644
--- a/arch/m68k/configs/apollo_defconfig
+++ b/arch/m68k/configs/apollo_defconfig
@@ -518,6 +518,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -530,7 +531,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -568,6 +569,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -576,6 +580,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -607,4 +612,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig
index 2551c7e9ac54..eb6a46b6d135 100644
--- a/arch/m68k/configs/atari_defconfig
+++ b/arch/m68k/configs/atari_defconfig
@@ -540,6 +540,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -552,7 +553,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -590,6 +591,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -598,6 +602,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -629,4 +634,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig
index 4ffc1e5646d5..bee9263a409c 100644
--- a/arch/m68k/configs/bvme6000_defconfig
+++ b/arch/m68k/configs/bvme6000_defconfig
@@ -511,6 +511,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -523,7 +524,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -561,6 +562,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -569,6 +573,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -600,4 +605,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig
index 806da3d97ca4..c8847a8bcbd6 100644
--- a/arch/m68k/configs/hp300_defconfig
+++ b/arch/m68k/configs/hp300_defconfig
@@ -520,6 +520,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -532,7 +533,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -570,6 +571,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -578,6 +582,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -609,4 +614,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 250da20e291c..303ffafd9cad 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -542,6 +542,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -554,7 +555,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -592,6 +593,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -600,6 +604,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -631,4 +636,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index b764a0368a56..89a704226cd9 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -628,6 +628,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -640,7 +641,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -678,6 +679,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -686,6 +690,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -717,4 +722,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
index 7800d3a8d46e..f62c1f4d03a0 100644
--- a/arch/m68k/configs/mvme147_defconfig
+++ b/arch/m68k/configs/mvme147_defconfig
@@ -510,6 +510,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -522,7 +523,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -560,6 +561,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -568,6 +572,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -599,4 +604,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
index c32dc2d2058d..58dcad26a751 100644
--- a/arch/m68k/configs/mvme16x_defconfig
+++ b/arch/m68k/configs/mvme16x_defconfig
@@ -511,6 +511,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -523,7 +524,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -561,6 +562,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -569,6 +573,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -600,4 +605,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig
index bf0a65ce57e0..5d3c28d1d545 100644
--- a/arch/m68k/configs/q40_defconfig
+++ b/arch/m68k/configs/q40_defconfig
@@ -529,6 +529,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -541,7 +542,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -579,6 +580,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -587,6 +591,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -618,4 +623,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig
index 5f3cfa2926d2..5ef9e17dcd51 100644
--- a/arch/m68k/configs/sun3_defconfig
+++ b/arch/m68k/configs/sun3_defconfig
@@ -513,6 +513,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -525,7 +526,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -563,6 +564,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig
index 58354d2018d5..22e1accc60a3 100644
--- a/arch/m68k/configs/sun3x_defconfig
+++ b/arch/m68k/configs/sun3x_defconfig
@@ -512,6 +512,7 @@ CONFIG_CRYPTO_RSA=m
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECRDSA=m
+CONFIG_CRYPTO_CURVE25519=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_CFB=m
@@ -524,7 +525,7 @@ CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m
-CONFIG_CRYPTO_XXHASH=m
+CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD128=m
CONFIG_CRYPTO_RMD160=m
@@ -562,6 +563,9 @@ CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
+CONFIG_CRYPTO_LIB_BLAKE2S=m
+CONFIG_CRYPTO_LIB_CURVE25519=m
+CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC32_SELFTEST=m
CONFIG_CRC64=m
@@ -570,6 +574,7 @@ CONFIG_STRING_SELFTEST=m
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_WW_MUTEX_SELFTEST=m
+CONFIG_EARLY_PRINTK=y
CONFIG_TEST_LIST_SORT=m
CONFIG_TEST_SORT=m
CONFIG_REED_SOLOMON_TEST=m
@@ -601,4 +606,3 @@ CONFIG_TEST_KMOD=m
CONFIG_TEST_MEMCAT_P=m
CONFIG_TEST_STACKINIT=m
CONFIG_TEST_MEMINIT=m
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/m68k/emu/nfeth.c b/arch/m68k/emu/nfeth.c
index a4ebd2445eda..d2875e32abfc 100644
--- a/arch/m68k/emu/nfeth.c
+++ b/arch/m68k/emu/nfeth.c
@@ -167,7 +167,7 @@ static int nfeth_xmit(struct sk_buff *skb, struct net_device *dev)
return 0;
}
-static void nfeth_tx_timeout(struct net_device *dev)
+static void nfeth_tx_timeout(struct net_device *dev, unsigned int txqueue)
{
dev->stats.tx_errors++;
netif_wake_queue(dev);
diff --git a/arch/m68k/include/asm/kmap.h b/arch/m68k/include/asm/kmap.h
index 559cb91bede1..dec05743d426 100644
--- a/arch/m68k/include/asm/kmap.h
+++ b/arch/m68k/include/asm/kmap.h
@@ -27,7 +27,6 @@ static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
}
-#define ioremap_nocache ioremap
#define ioremap_uc ioremap
#define ioremap_wt ioremap_wt
static inline void __iomem *ioremap_wt(unsigned long physaddr,
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 2e0047cf86f8..4ae52414cd9d 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -30,5 +30,6 @@
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
+#define __ARCH_WANT_SYS_CLONE3
#endif /* _ASM_M68K_UNISTD_H_ */
diff --git a/arch/m68k/include/asm/vmalloc.h b/arch/m68k/include/asm/vmalloc.h
new file mode 100644
index 000000000000..bc1dca6cf134
--- /dev/null
+++ b/arch/m68k/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_M68K_VMALLOC_H
+#define _ASM_M68K_VMALLOC_H
+
+#endif /* _ASM_M68K_VMALLOC_H */
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 97cd3ea5f10b..9dd76fbb7c6b 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -69,6 +69,13 @@ ENTRY(__sys_vfork)
lea %sp@(24),%sp
rts
+ENTRY(__sys_clone3)
+ SAVE_SWITCH_STACK
+ pea %sp@(SWITCH_STACK_SIZE)
+ jbsr m68k_clone3
+ lea %sp@(28),%sp
+ rts
+
ENTRY(sys_sigreturn)
SAVE_SWITCH_STACK
movel %sp,%sp@- | switch_stack pointer
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 4e77a06735c1..8f0d9140700f 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -30,8 +30,9 @@
#include <linux/init_task.h>
#include <linux/mqueue.h>
#include <linux/rcupdate.h>
-
+#include <linux/syscalls.h>
#include <linux/uaccess.h>
+
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/setup.h>
@@ -107,20 +108,43 @@ void flush_thread(void)
* on top of pt_regs, which means that sys_clone() arguments would be
* buried. We could, of course, copy them, but it's too costly for no
* good reason - generic clone() would have to copy them *again* for
- * do_fork() anyway. So in this case it's actually better to pass pt_regs *
- * and extract arguments for do_fork() from there. Eventually we might
- * go for calling do_fork() directly from the wrapper, but only after we
- * are finished with do_fork() prototype conversion.
+ * _do_fork() anyway. So in this case it's actually better to pass pt_regs *
+ * and extract arguments for _do_fork() from there. Eventually we might
+ * go for calling _do_fork() directly from the wrapper, but only after we
+ * are finished with _do_fork() prototype conversion.
*/
asmlinkage int m68k_clone(struct pt_regs *regs)
{
/* regs will be equal to current_pt_regs() */
- return do_fork(regs->d1, regs->d2, 0,
- (int __user *)regs->d3, (int __user *)regs->d4);
+ struct kernel_clone_args args = {
+ .flags = regs->d1 & ~CSIGNAL,
+ .pidfd = (int __user *)regs->d3,
+ .child_tid = (int __user *)regs->d4,
+ .parent_tid = (int __user *)regs->d3,
+ .exit_signal = regs->d1 & CSIGNAL,
+ .stack = regs->d2,
+ .tls = regs->d5,
+ };
+
+ if (!legacy_clone_args_valid(&args))
+ return -EINVAL;
+
+ return _do_fork(&args);
+}
+
+/*
+ * Because extra registers are saved on the stack after the sys_clone3()
+ * arguments, this C wrapper extracts them from pt_regs * and then calls the
+ * generic sys_clone3() implementation.
+ */
+asmlinkage int m68k_clone3(struct pt_regs *regs)
+{
+ return sys_clone3((struct clone_args __user *)regs->d1, regs->d2);
}
-int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg, struct task_struct *p)
+int copy_thread_tls(unsigned long clone_flags, unsigned long usp,
+ unsigned long arg, struct task_struct *p,
+ unsigned long tls)
{
struct fork_frame {
struct switch_stack sw;
@@ -155,7 +179,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
p->thread.usp = usp ?: rdusp();
if (clone_flags & CLONE_SETTLS)
- task_thread_info(p)->tp_value = frame->regs.d5;
+ task_thread_info(p)->tp_value = tls;
#ifdef CONFIG_FPU
if (!FPU_IS_EMU) {
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index 528484feff80..ab8aa7be260f 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -274,10 +274,6 @@ void __init setup_arch(char **cmdline_p)
parse_early_param();
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
switch (m68k_machtype) {
#ifdef CONFIG_AMIGA
case MACH_AMIGA:
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index 3c5def10d486..a63483de7a42 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -146,10 +146,6 @@ void __init setup_arch(char **cmdline_p)
memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
boot_command_line[COMMAND_LINE_SIZE-1] = 0;
-#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-
/*
* Give all the memory to the bootmap allocator, tell it to put the
* boot mem_map at the start of memory.
diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index a88a285a0e5f..f4f49fcb76d0 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -434,4 +434,6 @@
432 common fsmount sys_fsmount
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
-# 435 reserved for clone3
+435 common clone3 __sys_clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/m68k/sun3x/config.c b/arch/m68k/sun3x/config.c
index 03ce7f9facfe..d806dee71a9c 100644
--- a/arch/m68k/sun3x/config.c
+++ b/arch/m68k/sun3x/config.c
@@ -70,7 +70,6 @@ void __init config_sun3x(void)
break;
default:
serial_console = 0;
- conswitchp = &dummy_con;
break;
}
#endif
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 5f46ebe7bfe3..a105f113fd67 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -11,7 +11,7 @@ config MICROBLAZE
select ARCH_HAS_UNCACHED_SEGMENT if !MMU
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_WANT_IPC_PARSE_VERSION
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select TIMER_OF
select CLONE_BACKWARDS3
select COMMON_CLK
diff --git a/arch/microblaze/include/asm/vmalloc.h b/arch/microblaze/include/asm/vmalloc.h
new file mode 100644
index 000000000000..04013a42b0fe
--- /dev/null
+++ b/arch/microblaze/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_MICROBLAZE_VMALLOC_H
+#define _ASM_MICROBLAZE_VMALLOC_H
+
+#endif /* _ASM_MICROBLAZE_VMALLOC_H */
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index de7083bd1d24..f6ded356394a 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -728,7 +728,7 @@ no_intr_resched:
bri 6f;
/* MS: Return to kernel state. */
2:
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
lwi r11, CURRENT_TASK, TS_THREAD_INFO;
/* MS: get preempt_count from thread info */
lwi r5, r11, TI_PREEMPT_COUNT;
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 522a0c5d9c59..511c1ab7f57f 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -65,10 +65,6 @@ void __init setup_arch(char **cmdline_p)
microblaze_cache_init();
xilinx_pci_init();
-
-#if defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
}
#ifdef CONFIG_MTD_UCLINUX
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index 09b0cd7dab0a..4c67b11f9c9e 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -441,3 +441,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
435 common clone3 sys_clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index add388236f4e..a2739a34bb12 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -15,7 +15,7 @@ config MIPS
select ARCH_USE_QUEUED_SPINLOCKS
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
select ARCH_WANT_IPC_PARSE_VERSION
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS
select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
select CPU_PM if CPU_IDLE
@@ -47,7 +47,7 @@ config MIPS
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
select HAVE_ASM_MODVERSIONS
- select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
+ select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
select HAVE_CONTEXT_TRACKING
select HAVE_COPY_THREAD_TLS
select HAVE_C_RECORDMCOUNT
diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c
index 7de162432d7f..95def949c971 100644
--- a/arch/mips/ar7/clock.c
+++ b/arch/mips/ar7/clock.c
@@ -236,9 +236,9 @@ static void tnetd7300_set_clock(u32 shift, struct tnetd7300_clock *clock,
static void __init tnetd7300_init_clocks(void)
{
- u32 *bootcr = (u32 *)ioremap_nocache(AR7_REGS_DCL, 4);
+ u32 *bootcr = (u32 *)ioremap(AR7_REGS_DCL, 4);
struct tnetd7300_clocks *clocks =
- ioremap_nocache(UR8_REGS_CLOCKS,
+ ioremap(UR8_REGS_CLOCKS,
sizeof(struct tnetd7300_clocks));
bus_clk.rate = tnetd7300_get_clock(BUS_PLL_SOURCE_SHIFT,
@@ -320,9 +320,9 @@ static int tnetd7200_get_clock_base(int clock_id, u32 *bootcr)
static void __init tnetd7200_init_clocks(void)
{
- u32 *bootcr = (u32 *)ioremap_nocache(AR7_REGS_DCL, 4);
+ u32 *bootcr = (u32 *)ioremap(AR7_REGS_DCL, 4);
struct tnetd7200_clocks *clocks =
- ioremap_nocache(AR7_REGS_CLOCKS,
+ ioremap(AR7_REGS_CLOCKS,
sizeof(struct tnetd7200_clocks));
int cpu_base, cpu_mul, cpu_prediv, cpu_postdiv;
int dsp_base, dsp_mul, dsp_prediv, dsp_postdiv;
diff --git a/arch/mips/ar7/gpio.c b/arch/mips/ar7/gpio.c
index 2292e55c12e2..8b006addd6ba 100644
--- a/arch/mips/ar7/gpio.c
+++ b/arch/mips/ar7/gpio.c
@@ -308,7 +308,7 @@ int __init ar7_gpio_init(void)
size = 0x1f;
}
- gpch->regs = ioremap_nocache(AR7_REGS_GPIO, size);
+ gpch->regs = ioremap(AR7_REGS_GPIO, size);
if (!gpch->regs) {
printk(KERN_ERR "%s: failed to ioremap regs\n",
gpch->chip.label);
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index 1f2028266493..215149a85d83 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -702,7 +702,7 @@ static int __init ar7_register_devices(void)
pr_warn("unable to register usb slave: %d\n", res);
/* Register watchdog only if enabled in hardware */
- bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
+ bootcr = ioremap(AR7_REGS_DCL, 4);
val = readl(bootcr);
iounmap(bootcr);
if (val & AR7_WDT_HW_ENA) {
diff --git a/arch/mips/ath25/ar2315.c b/arch/mips/ath25/ar2315.c
index 8da996142d6a..24f619199ee7 100644
--- a/arch/mips/ath25/ar2315.c
+++ b/arch/mips/ath25/ar2315.c
@@ -262,7 +262,7 @@ void __init ar2315_plat_mem_setup(void)
u32 config;
/* Detect memory size */
- sdram_base = ioremap_nocache(AR2315_SDRAMCTL_BASE,
+ sdram_base = ioremap(AR2315_SDRAMCTL_BASE,
AR2315_SDRAMCTL_SIZE);
memcfg = __raw_readl(sdram_base + AR2315_MEM_CFG);
memsize = 1 + ATH25_REG_MS(memcfg, AR2315_MEM_CFG_DATA_WIDTH);
@@ -272,7 +272,7 @@ void __init ar2315_plat_mem_setup(void)
add_memory_region(0, memsize, BOOT_MEM_RAM);
iounmap(sdram_base);
- ar2315_rst_base = ioremap_nocache(AR2315_RST_BASE, AR2315_RST_SIZE);
+ ar2315_rst_base = ioremap(AR2315_RST_BASE, AR2315_RST_SIZE);
/* Detect the hardware based on the device ID */
devid = ar2315_rst_reg_read(AR2315_SREV) & AR2315_REV_CHIP;
diff --git a/arch/mips/ath25/ar5312.c b/arch/mips/ath25/ar5312.c
index acd55a9cffe3..47f3e98974fc 100644
--- a/arch/mips/ath25/ar5312.c
+++ b/arch/mips/ath25/ar5312.c
@@ -185,7 +185,7 @@ static void __init ar5312_flash_init(void)
void __iomem *flashctl_base;
u32 ctl;
- flashctl_base = ioremap_nocache(AR5312_FLASHCTL_BASE,
+ flashctl_base = ioremap(AR5312_FLASHCTL_BASE,
AR5312_FLASHCTL_SIZE);
ctl = __raw_readl(flashctl_base + AR5312_FLASHCTL0);
@@ -358,7 +358,7 @@ void __init ar5312_plat_mem_setup(void)
u32 devid;
/* Detect memory size */
- sdram_base = ioremap_nocache(AR5312_SDRAMCTL_BASE,
+ sdram_base = ioremap(AR5312_SDRAMCTL_BASE,
AR5312_SDRAMCTL_SIZE);
memcfg = __raw_readl(sdram_base + AR5312_MEM_CFG1);
bank0_ac = ATH25_REG_MS(memcfg, AR5312_MEM_CFG1_AC0);
@@ -369,7 +369,7 @@ void __init ar5312_plat_mem_setup(void)
add_memory_region(0, memsize, BOOT_MEM_RAM);
iounmap(sdram_base);
- ar5312_rst_base = ioremap_nocache(AR5312_RST_BASE, AR5312_RST_SIZE);
+ ar5312_rst_base = ioremap(AR5312_RST_BASE, AR5312_RST_SIZE);
devid = ar5312_rst_reg_read(AR5312_REV);
devid >>= AR5312_REV_WMAC_MIN_S;
diff --git a/arch/mips/ath25/board.c b/arch/mips/ath25/board.c
index 989e71015ee6..cb99f9739910 100644
--- a/arch/mips/ath25/board.c
+++ b/arch/mips/ath25/board.c
@@ -111,7 +111,7 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size)
u8 *mac_addr;
u32 offset;
- flash_base = ioremap_nocache(base, size);
+ flash_base = ioremap(base, size);
flash_limit = flash_base + size;
ath25_board.config = NULL;
diff --git a/arch/mips/ath79/common.c b/arch/mips/ath79/common.c
index 63eacb8b0eb5..137abbc65c60 100644
--- a/arch/mips/ath79/common.c
+++ b/arch/mips/ath79/common.c
@@ -41,7 +41,7 @@ static void __iomem *ath79_ddr_pci_win_base;
void ath79_ddr_ctrl_init(void)
{
- ath79_ddr_base = ioremap_nocache(AR71XX_DDR_CTRL_BASE,
+ ath79_ddr_base = ioremap(AR71XX_DDR_CTRL_BASE,
AR71XX_DDR_CTRL_SIZE);
if (soc_is_ar913x() || soc_is_ar724x() || soc_is_ar933x()) {
ath79_ddr_wb_flush_base = ath79_ddr_base + 0x7c;
diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c
index ea385a865781..484ee28922a9 100644
--- a/arch/mips/ath79/setup.c
+++ b/arch/mips/ath79/setup.c
@@ -226,9 +226,9 @@ void __init plat_mem_setup(void)
else if (fw_passed_dtb)
__dt_setup_arch((void *)KSEG0ADDR(fw_passed_dtb));
- ath79_reset_base = ioremap_nocache(AR71XX_RESET_BASE,
+ ath79_reset_base = ioremap(AR71XX_RESET_BASE,
AR71XX_RESET_SIZE);
- ath79_pll_base = ioremap_nocache(AR71XX_PLL_BASE,
+ ath79_pll_base = ioremap(AR71XX_PLL_BASE,
AR71XX_PLL_SIZE);
ath79_detect_sys_type();
ath79_ddr_ctrl_init();
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 172801ed35b8..d859f079b771 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -29,6 +29,9 @@ KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
-DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
+# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
+KCOV_INSTRUMENT := n
+
# decompressor objects (linked with vmlinuz)
vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o
diff --git a/arch/mips/boot/dts/qca/ar9331.dtsi b/arch/mips/boot/dts/qca/ar9331.dtsi
index 5cfc9d347826..8f5aed760abb 100644
--- a/arch/mips/boot/dts/qca/ar9331.dtsi
+++ b/arch/mips/boot/dts/qca/ar9331.dtsi
@@ -126,6 +126,9 @@
clocks = <&pll ATH79_CLK_AHB>, <&pll ATH79_CLK_AHB>;
clock-names = "eth", "mdio";
+ phy-mode = "mii";
+ phy-handle = <&phy_port4>;
+
status = "disabled";
};
@@ -133,13 +136,127 @@
compatible = "qca,ar9330-eth";
reg = <0x1a000000 0x200>;
interrupts = <5>;
-
resets = <&rst 13>, <&rst 23>;
reset-names = "mac", "mdio";
clocks = <&pll ATH79_CLK_AHB>, <&pll ATH79_CLK_AHB>;
clock-names = "eth", "mdio";
+ phy-mode = "gmii";
+
status = "disabled";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch10: switch@10 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compatible = "qca,ar9331-switch";
+ reg = <0x10>;
+ resets = <&rst 8>;
+ reset-names = "switch";
+
+ interrupt-parent = <&miscintc>;
+ interrupts = <12>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch_port0: port@0 {
+ reg = <0x0>;
+ label = "cpu";
+ ethernet = <&eth1>;
+
+ phy-mode = "gmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ switch_port1: port@1 {
+ reg = <0x1>;
+ phy-handle = <&phy_port0>;
+ phy-mode = "internal";
+
+ status = "disabled";
+ };
+
+ switch_port2: port@2 {
+ reg = <0x2>;
+ phy-handle = <&phy_port1>;
+ phy-mode = "internal";
+
+ status = "disabled";
+ };
+
+ switch_port3: port@3 {
+ reg = <0x3>;
+ phy-handle = <&phy_port2>;
+ phy-mode = "internal";
+
+ status = "disabled";
+ };
+
+ switch_port4: port@4 {
+ reg = <0x4>;
+ phy-handle = <&phy_port3>;
+ phy-mode = "internal";
+
+ status = "disabled";
+ };
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupt-parent = <&switch10>;
+
+ phy_port0: phy@0 {
+ reg = <0x0>;
+ interrupts = <0>;
+ status = "disabled";
+ };
+
+ phy_port1: phy@1 {
+ reg = <0x1>;
+ interrupts = <0>;
+ status = "disabled";
+ };
+
+ phy_port2: phy@2 {
+ reg = <0x2>;
+ interrupts = <0>;
+ status = "disabled";
+ };
+
+ phy_port3: phy@3 {
+ reg = <0x3>;
+ interrupts = <0>;
+ status = "disabled";
+ };
+
+ phy_port4: phy@4 {
+ reg = <0x4>;
+ interrupts = <0>;
+ status = "disabled";
+ };
+ };
+ };
+ };
};
usb: usb@1b000100 {
diff --git a/arch/mips/boot/dts/qca/ar9331_dpt_module.dts b/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
index 77bab823eb3b..0f2b20044834 100644
--- a/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
+++ b/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
@@ -84,3 +84,16 @@
&eth1 {
status = "okay";
};
+
+&switch_port1 {
+ label = "lan0";
+ status = "okay";
+};
+
+&phy_port0 {
+ status = "okay";
+};
+
+&phy_port4 {
+ status = "okay";
+};
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index 1f742c32a883..4f34d92b52f9 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -357,7 +357,7 @@ static void octeon_write_lcd(const char *s)
{
if (octeon_bootinfo->led_display_base_addr) {
void __iomem *lcd_address =
- ioremap_nocache(octeon_bootinfo->led_display_base_addr,
+ ioremap(octeon_bootinfo->led_display_base_addr,
8);
int i;
for (i = 0; i < 8; i++, s++) {
diff --git a/arch/mips/crypto/crc32-mips.c b/arch/mips/crypto/crc32-mips.c
index 7d1d2425746f..faa88a6a74c0 100644
--- a/arch/mips/crypto/crc32-mips.c
+++ b/arch/mips/crypto/crc32-mips.c
@@ -177,10 +177,8 @@ static int chksum_setkey(struct crypto_shash *tfm, const u8 *key,
{
struct chksum_ctx *mctx = crypto_shash_ctx(tfm);
- if (keylen != sizeof(mctx->key)) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(mctx->key))
return -EINVAL;
- }
mctx->key = get_unaligned_le32(key);
return 0;
}
diff --git a/arch/mips/crypto/poly1305-glue.c b/arch/mips/crypto/poly1305-glue.c
index b37d29cf5d0a..fc881b46d911 100644
--- a/arch/mips/crypto/poly1305-glue.c
+++ b/arch/mips/crypto/poly1305-glue.c
@@ -15,7 +15,7 @@
asmlinkage void poly1305_init_mips(void *state, const u8 *key);
asmlinkage void poly1305_blocks_mips(void *state, const u8 *src, u32 len, u32 hibit);
-asmlinkage void poly1305_emit_mips(void *state, __le32 *digest, const u32 *nonce);
+asmlinkage void poly1305_emit_mips(void *state, u8 *digest, const u32 *nonce);
void poly1305_init_arch(struct poly1305_desc_ctx *dctx, const u8 *key)
{
@@ -134,9 +134,6 @@ EXPORT_SYMBOL(poly1305_update_arch);
void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
{
- __le32 digest[4];
- u64 f = 0;
-
if (unlikely(dctx->buflen)) {
dctx->buf[dctx->buflen++] = 1;
memset(dctx->buf + dctx->buflen, 0,
@@ -144,18 +141,7 @@ void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
poly1305_blocks_mips(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
}
- poly1305_emit_mips(&dctx->h, digest, dctx->s);
-
- /* mac = (h + s) % (2^128) */
- f = (f >> 32) + le32_to_cpu(digest[0]);
- put_unaligned_le32(f, dst);
- f = (f >> 32) + le32_to_cpu(digest[1]);
- put_unaligned_le32(f, dst + 4);
- f = (f >> 32) + le32_to_cpu(digest[2]);
- put_unaligned_le32(f, dst + 8);
- f = (f >> 32) + le32_to_cpu(digest[3]);
- put_unaligned_le32(f, dst + 12);
-
+ poly1305_emit_mips(&dctx->h, dst, dctx->s);
*dctx = (struct poly1305_desc_ctx){};
}
EXPORT_SYMBOL(poly1305_final_arch);
diff --git a/arch/mips/generic/board-ocelot.c b/arch/mips/generic/board-ocelot.c
index 06d92fb37769..c238e95190ac 100644
--- a/arch/mips/generic/board-ocelot.c
+++ b/arch/mips/generic/board-ocelot.c
@@ -51,7 +51,7 @@ static void __init ocelot_earlyprintk_init(void)
{
void __iomem *uart_base;
- uart_base = ioremap_nocache(UART_UART, 0x20);
+ uart_base = ioremap(UART_UART, 0x20);
setup_8250_early_printk_port((unsigned long)uart_base, 2, 50000);
}
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index feb069cbf44e..655f40ddb6d1 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -63,7 +63,7 @@
.endm
.macro local_irq_disable reg=t0
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
lw \reg, TI_PRE_COUNT($28)
addi \reg, \reg, 1
sw \reg, TI_PRE_COUNT($28)
@@ -73,7 +73,7 @@
xori \reg, \reg, 1
mtc0 \reg, CP0_STATUS
irq_disable_hazard
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
lw \reg, TI_PRE_COUNT($28)
addi \reg, \reg, -1
sw \reg, TI_PRE_COUNT($28)
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index c99166eadbde..255afcdd79c9 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -100,24 +100,6 @@ typedef u32 compat_sigset_word;
#define COMPAT_OFF_T_MAX 0x7fffffff
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
- /* cast to a __user pointer via "unsigned long" makes sparse happy */
- return (void __user *)(unsigned long)(long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
- return (u32)(unsigned long)uptr;
-}
-
static inline void __user *arch_compat_alloc_user_space(long len)
{
struct pt_regs *regs = (struct pt_regs *)
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index c46c59b0f1b4..49f0061a6051 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -15,7 +15,8 @@
static inline int __pure __get_cpu_type(const int cpu_type)
{
switch (cpu_type) {
-#if defined(CONFIG_SYS_HAS_CPU_LOONGSON2EF)
+#if defined(CONFIG_SYS_HAS_CPU_LOONGSON2E) || \
+ defined(CONFIG_SYS_HAS_CPU_LOONGSON2F)
case CPU_LOONGSON2EF:
#endif
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 3f6ce74335b4..cf1f2a4a2418 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -227,29 +227,7 @@ static inline void __iomem *ioremap_prot(phys_addr_t offset,
*/
#define ioremap(offset, size) \
__ioremap_mode((offset), (size), _CACHE_UNCACHED)
-
-/*
- * ioremap_nocache - map bus memory into CPU space
- * @offset: bus address of the memory
- * @size: size of the resource to map
- *
- * ioremap_nocache performs a platform specific sequence of operations to
- * make bus memory CPU accessible via the readb/readw/readl/writeb/
- * writew/writel functions and the other mmio helpers. The returned
- * address is not guaranteed to be usable directly as a virtual
- * address.
- *
- * This version of ioremap ensures that the memory is marked uncachable
- * on the CPU as well as honouring existing caching rules from things like
- * the PCI bus. Note that there are other caches and buffers on many
- * busses. In particular driver authors should read up on PCI writes
- *
- * It's useful if some control registers are in such an area and
- * write combining or read caching is not desirable:
- */
-#define ioremap_nocache(offset, size) \
- __ioremap_mode((offset), (size), _CACHE_UNCACHED)
-#define ioremap_uc ioremap_nocache
+#define ioremap_uc ioremap
/*
* ioremap_cache - map bus memory into CPU space
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 4993db40482c..ee26f9a4575d 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -49,8 +49,26 @@ struct thread_info {
.addr_limit = KERNEL_DS, \
}
-/* How to get the thread information struct from C. */
+/*
+ * A pointer to the struct thread_info for the currently executing thread is
+ * held in register $28/$gp.
+ *
+ * We declare __current_thread_info as a global register variable rather than a
+ * local register variable within current_thread_info() because clang doesn't
+ * support explicit local register variables.
+ *
+ * When building the VDSO we take care not to declare the global register
+ * variable because this causes GCC to not preserve the value of $28/$gp in
+ * functions that change its value (which is common in the PIC VDSO when
+ * accessing the GOT). Since the VDSO shouldn't be accessing
+ * __current_thread_info anyway we declare it extern in order to cause a link
+ * failure if it's referenced.
+ */
+#ifdef __VDSO__
+extern struct thread_info *__current_thread_info;
+#else
register struct thread_info *__current_thread_info __asm__("$28");
+#endif
static inline struct thread_info *current_thread_info(void)
{
diff --git a/arch/mips/include/asm/vdso/gettimeofday.h b/arch/mips/include/asm/vdso/gettimeofday.h
index b08825531e9f..a58687e26c5d 100644
--- a/arch/mips/include/asm/vdso/gettimeofday.h
+++ b/arch/mips/include/asm/vdso/gettimeofday.h
@@ -26,8 +26,6 @@
#define __VDSO_USE_SYSCALL ULLONG_MAX
-#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
-
static __always_inline long gettimeofday_fallback(
struct __kernel_old_timeval *_tv,
struct timezone *_tz)
@@ -48,17 +46,6 @@ static __always_inline long gettimeofday_fallback(
return error ? -ret : ret;
}
-#else
-
-static __always_inline long gettimeofday_fallback(
- struct __kernel_old_timeval *_tv,
- struct timezone *_tz)
-{
- return -1;
-}
-
-#endif
-
static __always_inline long clock_gettime_fallback(
clockid_t _clkid,
struct __kernel_timespec *_ts)
@@ -109,8 +96,6 @@ static __always_inline int clock_getres_fallback(
#if _MIPS_SIM != _MIPS_SIM_ABI64
-#define VDSO_HAS_32BIT_FALLBACK 1
-
static __always_inline long clock_gettime32_fallback(
clockid_t _clkid,
struct old_timespec32 *_ts)
diff --git a/arch/mips/include/asm/vmalloc.h b/arch/mips/include/asm/vmalloc.h
new file mode 100644
index 000000000000..25dc09b25eaf
--- /dev/null
+++ b/arch/mips/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_MIPS_VMALLOC_H
+#define _ASM_MIPS_VMALLOC_H
+
+#endif /* _ASM_MIPS_VMALLOC_H */
diff --git a/arch/mips/kernel/cacheinfo.c b/arch/mips/kernel/cacheinfo.c
index f777e44653d5..47312c529410 100644
--- a/arch/mips/kernel/cacheinfo.c
+++ b/arch/mips/kernel/cacheinfo.c
@@ -50,6 +50,25 @@ static int __init_cache_level(unsigned int cpu)
return 0;
}
+static void fill_cpumask_siblings(int cpu, cpumask_t *cpu_map)
+{
+ int cpu1;
+
+ for_each_possible_cpu(cpu1)
+ if (cpus_are_siblings(cpu, cpu1))
+ cpumask_set_cpu(cpu1, cpu_map);
+}
+
+static void fill_cpumask_cluster(int cpu, cpumask_t *cpu_map)
+{
+ int cpu1;
+ int cluster = cpu_cluster(&cpu_data[cpu]);
+
+ for_each_possible_cpu(cpu1)
+ if (cpu_cluster(&cpu_data[cpu1]) == cluster)
+ cpumask_set_cpu(cpu1, cpu_map);
+}
+
static int __populate_cache_leaves(unsigned int cpu)
{
struct cpuinfo_mips *c = &current_cpu_data;
@@ -57,14 +76,20 @@ static int __populate_cache_leaves(unsigned int cpu)
struct cacheinfo *this_leaf = this_cpu_ci->info_list;
if (c->icache.waysize) {
+ /* L1 caches are per core */
+ fill_cpumask_siblings(cpu, &this_leaf->shared_cpu_map);
populate_cache(dcache, this_leaf, 1, CACHE_TYPE_DATA);
+ fill_cpumask_siblings(cpu, &this_leaf->shared_cpu_map);
populate_cache(icache, this_leaf, 1, CACHE_TYPE_INST);
} else {
populate_cache(dcache, this_leaf, 1, CACHE_TYPE_UNIFIED);
}
- if (c->scache.waysize)
+ if (c->scache.waysize) {
+ /* L2 cache is per cluster */
+ fill_cpumask_cluster(cpu, &this_leaf->shared_cpu_map);
populate_cache(scache, this_leaf, 2, CACHE_TYPE_UNIFIED);
+ }
if (c->tcache.waysize)
populate_cache(tcache, this_leaf, 3, CACHE_TYPE_UNIFIED);
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 5469d43b6966..4849a48afc0f 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -19,7 +19,7 @@
#include <asm/thread_info.h>
#include <asm/war.h>
-#ifndef CONFIG_PREEMPT
+#ifndef CONFIG_PREEMPTION
#define resume_kernel restore_all
#else
#define __ret_from_irq ret_from_exception
@@ -27,7 +27,7 @@
.text
.align 5
-#ifndef CONFIG_PREEMPT
+#ifndef CONFIG_PREEMPTION
FEXPORT(ret_from_exception)
local_irq_disable # preempt stop
b __ret_from_irq
@@ -53,7 +53,7 @@ resume_userspace:
bnez t0, work_pending
j restore_all
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
resume_kernel:
local_irq_disable
lw t0, TI_PRE_COUNT($28)
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index e5ea3db23d6b..cdb93ed91cde 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -194,7 +194,7 @@ static void mips_cm_probe_l2sync(void)
write_gcr_l2_only_sync_base(addr | CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN);
/* Map the region */
- mips_cm_l2sync_base = ioremap_nocache(addr, MIPS_CM_L2SYNC_SIZE);
+ mips_cm_l2sync_base = ioremap(addr, MIPS_CM_L2SYNC_SIZE);
}
int mips_cm_probe(void)
@@ -215,7 +215,7 @@ int mips_cm_probe(void)
if (!addr)
return -ENODEV;
- mips_gcr_base = ioremap_nocache(addr, MIPS_CM_GCR_SIZE);
+ mips_gcr_base = ioremap(addr, MIPS_CM_GCR_SIZE);
if (!mips_gcr_base)
return -ENXIO;
diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index 69e3e0b556bf..8d2535123f11 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -78,7 +78,7 @@ int mips_cpc_probe(void)
if (!addr)
return -ENODEV;
- mips_cpc_base = ioremap_nocache(addr, 0x8000);
+ mips_cpc_base = ioremap(addr, 0x8000);
if (!mips_cpc_base)
return -ENXIO;
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index c3d4212b5f1d..a28057946ed1 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -796,8 +796,6 @@ void __init setup_arch(char **cmdline_p)
#if defined(CONFIG_VT)
#if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
#endif
#endif
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index e7c5ab38e403..1f9e8ad636cc 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -374,3 +374,5 @@
433 n32 fspick sys_fspick
434 n32 pidfd_open sys_pidfd_open
435 n32 clone3 __sys_clone3
+437 n32 openat2 sys_openat2
+438 n32 pidfd_getfd sys_pidfd_getfd
diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index 13cd66581f3b..c0b9d802dbf6 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -350,3 +350,5 @@
433 n64 fspick sys_fspick
434 n64 pidfd_open sys_pidfd_open
435 n64 clone3 __sys_clone3
+437 n64 openat2 sys_openat2
+438 n64 pidfd_getfd sys_pidfd_getfd
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 353539ea4140..ac586774c980 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -423,3 +423,5 @@
433 o32 fspick sys_fspick
434 o32 pidfd_open sys_pidfd_open
435 o32 clone3 __sys_clone3
+437 o32 openat2 sys_openat2
+438 o32 pidfd_getfd sys_pidfd_getfd
diff --git a/arch/mips/lantiq/falcon/sysctrl.c b/arch/mips/lantiq/falcon/sysctrl.c
index 037b08f3257e..42222f849bd2 100644
--- a/arch/mips/lantiq/falcon/sysctrl.c
+++ b/arch/mips/lantiq/falcon/sysctrl.c
@@ -221,16 +221,16 @@ void __init ltq_soc_init(void)
res_sys[2].name) < 0))
pr_err("Failed to request core resources");
- status_membase = ioremap_nocache(res_status.start,
+ status_membase = ioremap(res_status.start,
resource_size(&res_status));
- ltq_ebu_membase = ioremap_nocache(res_ebu.start,
+ ltq_ebu_membase = ioremap(res_ebu.start,
resource_size(&res_ebu));
if (!status_membase || !ltq_ebu_membase)
panic("Failed to remap core resources");
for (i = 0; i < 3; i++) {
- sysctl_membase[i] = ioremap_nocache(res_sys[i].start,
+ sysctl_membase[i] = ioremap(res_sys[i].start,
resource_size(&res_sys[i]));
if (!sysctl_membase[i])
panic("Failed to remap sysctrl resources");
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 115b417dfb8e..df8eed3875f6 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -349,7 +349,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
res.name))
pr_err("Failed to request icu%i memory\n", vpe);
- ltq_icu_membase[vpe] = ioremap_nocache(res.start,
+ ltq_icu_membase[vpe] = ioremap(res.start,
resource_size(&res));
if (!ltq_icu_membase[vpe])
@@ -402,7 +402,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
res.name))
pr_err("Failed to request eiu memory");
- ltq_eiu_membase = ioremap_nocache(res.start,
+ ltq_eiu_membase = ioremap(res.start,
resource_size(&res));
if (!ltq_eiu_membase)
panic("Failed to remap eiu memory");
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 156a95ac5c72..aa37545ebe8f 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -431,10 +431,10 @@ void __init ltq_soc_init(void)
res_ebu.name))
pr_err("Failed to request core resources");
- pmu_membase = ioremap_nocache(res_pmu.start, resource_size(&res_pmu));
- ltq_cgu_membase = ioremap_nocache(res_cgu.start,
+ pmu_membase = ioremap(res_pmu.start, resource_size(&res_pmu));
+ ltq_cgu_membase = ioremap(res_cgu.start,
resource_size(&res_cgu));
- ltq_ebu_membase = ioremap_nocache(res_ebu.start,
+ ltq_ebu_membase = ioremap(res_ebu.start,
resource_size(&res_ebu));
if (!pmu_membase || !ltq_cgu_membase || !ltq_ebu_membase)
panic("Failed to remap core resources");
diff --git a/arch/mips/loongson2ef/common/reset.c b/arch/mips/loongson2ef/common/reset.c
index e7c87161ce00..e49c40646995 100644
--- a/arch/mips/loongson2ef/common/reset.c
+++ b/arch/mips/loongson2ef/common/reset.c
@@ -17,11 +17,11 @@
static inline void loongson_reboot(void)
{
#ifndef CONFIG_CPU_JUMP_WORKAROUNDS
- ((void (*)(void))ioremap_nocache(LOONGSON_BOOT_BASE, 4)) ();
+ ((void (*)(void))ioremap(LOONGSON_BOOT_BASE, 4)) ();
#else
void (*func)(void);
- func = (void *)ioremap_nocache(LOONGSON_BOOT_BASE, 4);
+ func = (void *)ioremap(LOONGSON_BOOT_BASE, 4);
__asm__ __volatile__(
" .set noat \n"
diff --git a/arch/mips/loongson32/common/prom.c b/arch/mips/loongson32/common/prom.c
index 73dd25142484..fd76114fa3b0 100644
--- a/arch/mips/loongson32/common/prom.c
+++ b/arch/mips/loongson32/common/prom.c
@@ -26,13 +26,13 @@ void __init prom_init(void)
memsize = DEFAULT_MEMSIZE;
if (strstr(arcs_cmdline, "console=ttyS3"))
- uart_base = ioremap_nocache(LS1X_UART3_BASE, 0x0f);
+ uart_base = ioremap(LS1X_UART3_BASE, 0x0f);
else if (strstr(arcs_cmdline, "console=ttyS2"))
- uart_base = ioremap_nocache(LS1X_UART2_BASE, 0x0f);
+ uart_base = ioremap(LS1X_UART2_BASE, 0x0f);
else if (strstr(arcs_cmdline, "console=ttyS1"))
- uart_base = ioremap_nocache(LS1X_UART1_BASE, 0x0f);
+ uart_base = ioremap(LS1X_UART1_BASE, 0x0f);
else
- uart_base = ioremap_nocache(LS1X_UART0_BASE, 0x0f);
+ uart_base = ioremap(LS1X_UART0_BASE, 0x0f);
setup_8250_early_printk_port((unsigned long)uart_base, 0, 0);
}
diff --git a/arch/mips/loongson32/common/reset.c b/arch/mips/loongson32/common/reset.c
index 6c36a414dde7..0c7399b303fb 100644
--- a/arch/mips/loongson32/common/reset.c
+++ b/arch/mips/loongson32/common/reset.c
@@ -37,7 +37,7 @@ static void ls1x_power_off(void)
static int __init ls1x_reboot_setup(void)
{
- wdt_reg_base = ioremap_nocache(LS1X_WDT_BASE, (SZ_4 + SZ_8));
+ wdt_reg_base = ioremap(LS1X_WDT_BASE, (SZ_4 + SZ_8));
if (!wdt_reg_base)
panic("Failed to remap watchdog registers");
diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c
index f97662045c73..4cc73f7ac0d4 100644
--- a/arch/mips/loongson32/common/time.c
+++ b/arch/mips/loongson32/common/time.c
@@ -49,7 +49,7 @@ static inline void ls1x_pwmtimer_restart(void)
void __init ls1x_pwmtimer_init(void)
{
- timer_reg_base = ioremap_nocache(LS1X_TIMER_BASE, SZ_16);
+ timer_reg_base = ioremap(LS1X_TIMER_BASE, SZ_16);
if (!timer_reg_base)
panic("Failed to remap timer registers");
diff --git a/arch/mips/loongson64/reset.c b/arch/mips/loongson64/reset.c
index 88b3bd5fed25..bc7671079f0c 100644
--- a/arch/mips/loongson64/reset.c
+++ b/arch/mips/loongson64/reset.c
@@ -17,7 +17,7 @@
static inline void loongson_reboot(void)
{
- ((void (*)(void))ioremap_nocache(LOONGSON_BOOT_BASE, 4)) ();
+ ((void (*)(void))ioremap(LOONGSON_BOOT_BASE, 4)) ();
}
static void loongson_restart(char *command)
diff --git a/arch/mips/mti-malta/malta-dtshim.c b/arch/mips/mti-malta/malta-dtshim.c
index 98a063093b69..0ddf03df6268 100644
--- a/arch/mips/mti-malta/malta-dtshim.c
+++ b/arch/mips/mti-malta/malta-dtshim.c
@@ -240,7 +240,7 @@ static void __init remove_gic(void *fdt)
* On systems using the RocIT system controller a GIC may be
* present without a CM. Detect whether that is the case.
*/
- biu_base = ioremap_nocache(MSC01_BIU_REG_BASE,
+ biu_base = ioremap(MSC01_BIU_REG_BASE,
MSC01_BIU_ADDRSPACE_SZ);
sc_cfg = __raw_readl(biu_base + MSC01_SC_CFG_OFS);
if (sc_cfg & MSC01_SC_CFG_GICPRES_MSK) {
diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c
index 46b76751f3a5..561154cbcc40 100644
--- a/arch/mips/net/ebpf_jit.c
+++ b/arch/mips/net/ebpf_jit.c
@@ -604,6 +604,7 @@ static void emit_const_to_reg(struct jit_ctx *ctx, int dst, u64 value)
static int emit_bpf_tail_call(struct jit_ctx *ctx, int this_idx)
{
int off, b_off;
+ int tcc_reg;
ctx->flags |= EBPF_SEEN_TC;
/*
@@ -616,14 +617,14 @@ static int emit_bpf_tail_call(struct jit_ctx *ctx, int this_idx)
b_off = b_imm(this_idx + 1, ctx);
emit_instr(ctx, bne, MIPS_R_AT, MIPS_R_ZERO, b_off);
/*
- * if (--TCC < 0)
+ * if (TCC-- < 0)
* goto out;
*/
/* Delay slot */
- emit_instr(ctx, daddiu, MIPS_R_T5,
- (ctx->flags & EBPF_TCC_IN_V1) ? MIPS_R_V1 : MIPS_R_S4, -1);
+ tcc_reg = (ctx->flags & EBPF_TCC_IN_V1) ? MIPS_R_V1 : MIPS_R_S4;
+ emit_instr(ctx, daddiu, MIPS_R_T5, tcc_reg, -1);
b_off = b_imm(this_idx + 1, ctx);
- emit_instr(ctx, bltz, MIPS_R_T5, b_off);
+ emit_instr(ctx, bltz, tcc_reg, b_off);
/*
* prog = array->ptrs[index];
* if (prog == NULL)
@@ -1803,7 +1804,7 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
unsigned int image_size;
u8 *image_ptr;
- if (!prog->jit_requested || MIPS_ISA_REV < 2)
+ if (!prog->jit_requested)
return prog;
tmp = bpf_jit_blind_constants(prog);
diff --git a/arch/mips/pci/pci-alchemy.c b/arch/mips/pci/pci-alchemy.c
index 4f2411f489af..01a2af8215c8 100644
--- a/arch/mips/pci/pci-alchemy.c
+++ b/arch/mips/pci/pci-alchemy.c
@@ -409,7 +409,7 @@ static int alchemy_pci_probe(struct platform_device *pdev)
goto out6;
}
- ctx->regs = ioremap_nocache(r->start, resource_size(r));
+ ctx->regs = ioremap(r->start, resource_size(r));
if (!ctx->regs) {
dev_err(&pdev->dev, "cannot map pci regs\n");
ret = -ENODEV;
diff --git a/arch/mips/pci/pci-ar2315.c b/arch/mips/pci/pci-ar2315.c
index 0fed6fc17fe4..490953f51528 100644
--- a/arch/mips/pci/pci-ar2315.c
+++ b/arch/mips/pci/pci-ar2315.c
@@ -441,7 +441,7 @@ static int ar2315_pci_probe(struct platform_device *pdev)
apc->mem_res.flags = IORESOURCE_MEM;
/* Remap PCI config space */
- apc->cfg_mem = devm_ioremap_nocache(dev, res->start,
+ apc->cfg_mem = devm_ioremap(dev, res->start,
AR2315_PCI_CFG_SIZE);
if (!apc->cfg_mem) {
dev_err(dev, "failed to remap PCI config space\n");
diff --git a/arch/mips/pci/pci-bcm63xx.c b/arch/mips/pci/pci-bcm63xx.c
index 151d9b5870bb..5548365605c0 100644
--- a/arch/mips/pci/pci-bcm63xx.c
+++ b/arch/mips/pci/pci-bcm63xx.c
@@ -221,7 +221,7 @@ static int __init bcm63xx_register_pci(void)
* a spinlock for each io access, so this is currently kind of
* broken on SMP.
*/
- pci_iospace_start = ioremap_nocache(BCM_PCI_IO_BASE_PA, 4);
+ pci_iospace_start = ioremap(BCM_PCI_IO_BASE_PA, 4);
if (!pci_iospace_start)
return -ENOMEM;
diff --git a/arch/mips/pci/pci-rt2880.c b/arch/mips/pci/pci-rt2880.c
index c9f4d4ba058a..e1f12e398136 100644
--- a/arch/mips/pci/pci-rt2880.c
+++ b/arch/mips/pci/pci-rt2880.c
@@ -218,7 +218,7 @@ static int rt288x_pci_probe(struct platform_device *pdev)
{
void __iomem *io_map_base;
- rt2880_pci_base = ioremap_nocache(RT2880_PCI_BASE, PAGE_SIZE);
+ rt2880_pci_base = ioremap(RT2880_PCI_BASE, PAGE_SIZE);
io_map_base = ioremap(RT2880_PCI_IO_BASE, RT2880_PCI_IO_SIZE);
rt2880_pci_controller.io_map_base = (unsigned long) io_map_base;
diff --git a/arch/mips/pic32/pic32mzda/early_console.c b/arch/mips/pic32/pic32mzda/early_console.c
index 8c236738b5ee..25372e62783b 100644
--- a/arch/mips/pic32/pic32mzda/early_console.c
+++ b/arch/mips/pic32/pic32mzda/early_console.c
@@ -135,7 +135,7 @@ void __init fw_init_early_console(char port)
char *arch_cmdline = pic32_getcmdline();
int baud = -1;
- uart_base = ioremap_nocache(PIC32_BASE_UART, 0xc00);
+ uart_base = ioremap(PIC32_BASE_UART, 0xc00);
baud = get_baud_from_cmdline(arch_cmdline);
if (port == -1)
diff --git a/arch/mips/pic32/pic32mzda/early_pin.c b/arch/mips/pic32/pic32mzda/early_pin.c
index 504e6ab399b5..f2822632b017 100644
--- a/arch/mips/pic32/pic32mzda/early_pin.c
+++ b/arch/mips/pic32/pic32mzda/early_pin.c
@@ -122,7 +122,7 @@ static const struct
void pic32_pps_input(int function, int pin)
{
- void __iomem *pps_base = ioremap_nocache(PPS_BASE, 0xF4);
+ void __iomem *pps_base = ioremap(PPS_BASE, 0xF4);
int i;
for (i = 0; i < ARRAY_SIZE(input_pin_reg); i++) {
@@ -252,7 +252,7 @@ static const struct
void pic32_pps_output(int function, int pin)
{
- void __iomem *pps_base = ioremap_nocache(PPS_BASE, 0x170);
+ void __iomem *pps_base = ioremap(PPS_BASE, 0x170);
int i;
for (i = 0; i < ARRAY_SIZE(output_pin_reg); i++) {
diff --git a/arch/mips/pmcs-msp71xx/msp_serial.c b/arch/mips/pmcs-msp71xx/msp_serial.c
index 8e6e8db8dd5f..940c684f6921 100644
--- a/arch/mips/pmcs-msp71xx/msp_serial.c
+++ b/arch/mips/pmcs-msp71xx/msp_serial.c
@@ -105,7 +105,7 @@ void __init msp_serial_setup(void)
/* Initialize first serial port */
up.mapbase = MSP_UART0_BASE;
- up.membase = ioremap_nocache(up.mapbase, MSP_UART_REG_LEN);
+ up.membase = ioremap(up.mapbase, MSP_UART_REG_LEN);
up.irq = MSP_INT_UART0;
up.uartclk = uartclk;
up.regshift = 2;
@@ -143,7 +143,7 @@ void __init msp_serial_setup(void)
}
up.mapbase = MSP_UART1_BASE;
- up.membase = ioremap_nocache(up.mapbase, MSP_UART_REG_LEN);
+ up.membase = ioremap(up.mapbase, MSP_UART_REG_LEN);
up.irq = MSP_INT_UART1;
up.line = 1;
up.private_data = (void*)UART1_STATUS_REG;
diff --git a/arch/mips/ralink/irq.c b/arch/mips/ralink/irq.c
index c945d76cfce5..220ca0cd7945 100644
--- a/arch/mips/ralink/irq.c
+++ b/arch/mips/ralink/irq.c
@@ -165,7 +165,7 @@ static int __init intc_of_init(struct device_node *node,
res.name))
pr_err("Failed to request intc memory");
- rt_intc_membase = ioremap_nocache(res.start,
+ rt_intc_membase = ioremap(res.start,
resource_size(&res));
if (!rt_intc_membase)
panic("Failed to remap intc memory");
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index 59b23095bfbb..90c6d4a11c5d 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -43,7 +43,7 @@ __iomem void *plat_of_remap_node(const char *node)
res.name))
panic("Failed to request resources for %s", node);
- return ioremap_nocache(res.start, resource_size(&res));
+ return ioremap(res.start, resource_size(&res));
}
void __init device_tree_init(void)
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index c9ecf17f8660..dd34f1b32b79 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -286,7 +286,7 @@ static int __init plat_setup_devices(void)
nand_slot0_res[0].end = nand_slot0_res[0].start + 0x1000;
/* Read and map device controller 3 */
- dev3.base = ioremap_nocache(readl(IDT434_REG_BASE + DEV3BASE), 1);
+ dev3.base = ioremap(readl(IDT434_REG_BASE + DEV3BASE), 1);
if (!dev3.base) {
printk(KERN_ERR "rb532: cannot remap device controller 3\n");
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index fdc704abc8d4..94f02ada4082 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -192,7 +192,7 @@ int __init rb532_gpio_init(void)
struct resource *r;
r = rb532_gpio_reg0_res;
- rb532_gpio_chip->regbase = ioremap_nocache(r->start, resource_size(r));
+ rb532_gpio_chip->regbase = ioremap(r->start, resource_size(r));
if (!rb532_gpio_chip->regbase) {
printk(KERN_ERR "rb532: cannot remap GPIO register 0\n");
diff --git a/arch/mips/rb532/prom.c b/arch/mips/rb532/prom.c
index 26e957b21fbf..303cc3dc1749 100644
--- a/arch/mips/rb532/prom.c
+++ b/arch/mips/rb532/prom.c
@@ -110,7 +110,7 @@ void __init prom_init(void)
phys_addr_t memsize;
phys_addr_t ddrbase;
- ddr = ioremap_nocache(ddr_reg[0].start,
+ ddr = ioremap(ddr_reg[0].start,
ddr_reg[0].end - ddr_reg[0].start);
if (!ddr) {
diff --git a/arch/mips/rb532/setup.c b/arch/mips/rb532/setup.c
index 1aa4df1385cb..51af9d374d66 100644
--- a/arch/mips/rb532/setup.c
+++ b/arch/mips/rb532/setup.c
@@ -49,7 +49,7 @@ void __init plat_mem_setup(void)
set_io_port_base(KSEG1);
- pci_reg = ioremap_nocache(pci0_res[0].start,
+ pci_reg = ioremap(pci0_res[0].start,
pci0_res[0].end - pci0_res[0].start);
if (!pci_reg) {
printk(KERN_ERR "Could not remap PCI registers\n");
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index 160b88000b4b..f6fa9afcbfd3 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -399,10 +399,10 @@ void __init sni_rm200_i8259_irqs(void)
{
int i;
- rm200_pic_master = ioremap_nocache(0x16000020, 4);
+ rm200_pic_master = ioremap(0x16000020, 4);
if (!rm200_pic_master)
return;
- rm200_pic_slave = ioremap_nocache(0x160000a0, 4);
+ rm200_pic_slave = ioremap(0x160000a0, 4);
if (!rm200_pic_slave) {
iounmap(rm200_pic_master);
return;
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
index e05938997e69..b2a2e032dc99 100644
--- a/arch/mips/vdso/Makefile
+++ b/arch/mips/vdso/Makefile
@@ -18,6 +18,10 @@ ccflags-vdso := \
$(filter -mno-loongson-%,$(KBUILD_CFLAGS)) \
-D__VDSO__
+ifndef CONFIG_64BIT
+ccflags-vdso += -DBUILD_VDSO32
+endif
+
ifdef CONFIG_CC_IS_CLANG
ccflags-vdso += $(filter --target=%,$(KBUILD_CFLAGS))
endif
diff --git a/arch/mips/vdso/vgettimeofday.c b/arch/mips/vdso/vgettimeofday.c
index 6ebdc37c89fc..6b83b6376a4b 100644
--- a/arch/mips/vdso/vgettimeofday.c
+++ b/arch/mips/vdso/vgettimeofday.c
@@ -17,12 +17,22 @@ int __vdso_clock_gettime(clockid_t clock,
return __cvdso_clock_gettime32(clock, ts);
}
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+/*
+ * This is behind the ifdef so that we don't provide the symbol when there's no
+ * possibility of there being a usable clocksource, because there's nothing we
+ * can do without it. When libc fails the symbol lookup it should fall back on
+ * the standard syscall path.
+ */
int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
struct timezone *tz)
{
return __cvdso_gettimeofday(tv, tz);
}
+#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
+
int __vdso_clock_getres(clockid_t clock_id,
struct old_timespec32 *res)
{
@@ -43,12 +53,22 @@ int __vdso_clock_gettime(clockid_t clock,
return __cvdso_clock_gettime(clock, ts);
}
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+/*
+ * This is behind the ifdef so that we don't provide the symbol when there's no
+ * possibility of there being a usable clocksource, because there's nothing we
+ * can do without it. When libc fails the symbol lookup it should fall back on
+ * the standard syscall path.
+ */
int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
struct timezone *tz)
{
return __cvdso_gettimeofday(tv, tz);
}
+#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
+
int __vdso_clock_getres(clockid_t clock_id,
struct __kernel_timespec *res)
{
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 12c06a833b7c..e30298e99e1b 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -62,7 +62,7 @@ config GENERIC_HWEIGHT
config GENERIC_LOCKBREAK
def_bool y
- depends on PREEMPT
+ depends on PREEMPTION
config TRACE_IRQFLAGS_SUPPORT
def_bool y
diff --git a/arch/nds32/include/asm/cacheflush.h b/arch/nds32/include/asm/cacheflush.h
index d9ac7e6408ef..caddded56e77 100644
--- a/arch/nds32/include/asm/cacheflush.h
+++ b/arch/nds32/include/asm/cacheflush.h
@@ -9,7 +9,11 @@
#define PG_dcache_dirty PG_arch_1
void flush_icache_range(unsigned long start, unsigned long end);
+#define flush_icache_range flush_icache_range
+
void flush_icache_page(struct vm_area_struct *vma, struct page *page);
+#define flush_icache_page flush_icache_page
+
#ifdef CONFIG_CPU_CACHE_ALIASING
void flush_cache_mm(struct mm_struct *mm);
void flush_cache_dup_mm(struct mm_struct *mm);
@@ -40,12 +44,11 @@ void invalidate_kernel_vmap_range(void *addr, int size);
#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&(mapping)->i_pages)
#else
-#include <asm-generic/cacheflush.h>
-#undef flush_icache_range
-#undef flush_icache_page
-#undef flush_icache_user_range
void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
unsigned long addr, int len);
+#define flush_icache_user_range flush_icache_user_range
+
+#include <asm-generic/cacheflush.h>
#endif
#endif /* __NDS32_CACHEFLUSH_H__ */
diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h
index 0214e4150539..6abc58ac406d 100644
--- a/arch/nds32/include/asm/pgtable.h
+++ b/arch/nds32/include/asm/pgtable.h
@@ -195,7 +195,7 @@ extern void paging_init(void);
#define pte_unmap(pte) do { } while (0)
#define pte_unmap_nested(pte) do { } while (0)
-#define pmd_off_k(address) pmd_offset(pgd_offset_k(address), address)
+#define pmd_off_k(address) pmd_offset(pud_offset(p4d_offset(pgd_offset_k(address), (address)), (address)), (address))
#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
/*
diff --git a/arch/nds32/include/asm/vmalloc.h b/arch/nds32/include/asm/vmalloc.h
new file mode 100644
index 000000000000..caeed3898419
--- /dev/null
+++ b/arch/nds32/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_NDS32_VMALLOC_H
+#define _ASM_NDS32_VMALLOC_H
+
+#endif /* _ASM_NDS32_VMALLOC_H */
diff --git a/arch/nds32/kernel/ex-exit.S b/arch/nds32/kernel/ex-exit.S
index 1df02a793364..6a2966c2d8c8 100644
--- a/arch/nds32/kernel/ex-exit.S
+++ b/arch/nds32/kernel/ex-exit.S
@@ -72,7 +72,7 @@
restore_user_regs_last
.endm
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
.macro preempt_stop
.endm
#else
@@ -158,7 +158,7 @@ no_work_pending:
/*
* preemptive kernel
*/
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
resume_kernel:
gie_disable
lwi $t0, [tsk+#TSK_TI_PREEMPT]
diff --git a/arch/nds32/kernel/ftrace.c b/arch/nds32/kernel/ftrace.c
index fd2a54b8cd57..22ab77ea27ad 100644
--- a/arch/nds32/kernel/ftrace.c
+++ b/arch/nds32/kernel/ftrace.c
@@ -89,18 +89,6 @@ int __init ftrace_dyn_arch_init(void)
return 0;
}
-int ftrace_arch_code_modify_prepare(void)
-{
- set_all_modules_text_rw();
- return 0;
-}
-
-int ftrace_arch_code_modify_post_process(void)
-{
- set_all_modules_text_ro();
- return 0;
-}
-
static unsigned long gen_sethi_insn(unsigned long addr)
{
unsigned long opcode = 0x46000000;
diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c
index 31d29d92478e..a066efbe53c0 100644
--- a/arch/nds32/kernel/setup.c
+++ b/arch/nds32/kernel/setup.c
@@ -317,11 +317,6 @@ void __init setup_arch(char **cmdline_p)
unflatten_and_copy_device_tree();
- if(IS_ENABLED(CONFIG_VT)) {
- if(IS_ENABLED(CONFIG_DUMMY_CONSOLE))
- conswitchp = &dummy_con;
- }
-
*cmdline_p = boot_command_line;
early_trap_init();
}
diff --git a/arch/nios2/include/asm/vmalloc.h b/arch/nios2/include/asm/vmalloc.h
new file mode 100644
index 000000000000..ec7a9260090b
--- /dev/null
+++ b/arch/nios2/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_NIOS2_VMALLOC_H
+#define _ASM_NIOS2_VMALLOC_H
+
+#endif /* _ASM_NIOS2_VMALLOC_H */
diff --git a/arch/nios2/kernel/entry.S b/arch/nios2/kernel/entry.S
index 1e515ccd698e..3d8d1d0bcb64 100644
--- a/arch/nios2/kernel/entry.S
+++ b/arch/nios2/kernel/entry.S
@@ -365,7 +365,7 @@ ENTRY(ret_from_interrupt)
ldw r1, PT_ESTATUS(sp) /* check if returning to kernel */
TSTBNZ r1, r1, ESTATUS_EU, Luser_return
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
GET_THREAD_INFO r1
ldw r4, TI_PREEMPT_COUNT(r1)
bne r4, r0, restore_all
diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index 4cf35b09c0ec..3c6e3c813a0b 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -196,8 +196,4 @@ void __init setup_arch(char **cmdline_p)
* get kmalloc into gear
*/
paging_init();
-
-#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
}
diff --git a/arch/openrisc/include/asm/vmalloc.h b/arch/openrisc/include/asm/vmalloc.h
new file mode 100644
index 000000000000..75435eceec32
--- /dev/null
+++ b/arch/openrisc/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_OPENRISC_VMALLOC_H
+#define _ASM_OPENRISC_VMALLOC_H
+
+#endif /* _ASM_OPENRISC_VMALLOC_H */
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index d668f5be3a99..c0a774b51e45 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -308,11 +308,6 @@ void __init setup_arch(char **cmdline_p)
/* paging_init() sets up the MMU and marks all pages as reserved */
paging_init();
-#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
- if (!conswitchp)
- conswitchp = &dummy_con;
-#endif
-
*cmdline_p = boot_command_line;
printk(KERN_INFO "OpenRISC Linux -- http://openrisc.io\n");
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index b16237c95ea3..71034b54d74e 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -18,7 +18,7 @@ config PARISC
select RTC_DRV_GENERIC
select INIT_ALL_POSSIBLE
select BUG
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select HAVE_PCI
select HAVE_PERF_EVENTS
select HAVE_KERNEL_BZIP2
@@ -62,6 +62,7 @@ config PARISC
select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE
select HAVE_KPROBES_ON_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
+ select HAVE_COPY_THREAD_TLS
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used
@@ -81,7 +82,7 @@ config STACK_GROWSUP
config GENERIC_LOCKBREAK
bool
default y
- depends on SMP && PREEMPT
+ depends on SMP && PREEMPTION
config ARCH_HAS_ILOG2_U32
bool
diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index f627c37dad9c..ab5c215cf46c 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -44,8 +44,14 @@ __xchg(unsigned long x, __volatile__ void *ptr, int size)
** if (((unsigned long)p & 0xf) == 0)
** return __ldcw(p);
*/
-#define xchg(ptr, x) \
- ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
+#define xchg(ptr, x) \
+({ \
+ __typeof__(*(ptr)) __ret; \
+ __typeof__(*(ptr)) _x_ = (x); \
+ __ret = (__typeof__(*(ptr))) \
+ __xchg((unsigned long)_x_, (ptr), sizeof(*(ptr))); \
+ __ret; \
+})
/* bug catcher for when unsupported size is used - won't link */
extern void __cmpxchg_called_with_bad_pointer(void);
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index e03e3c849f40..2f4f66a3bac0 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -173,23 +173,6 @@ struct compat_shmid64_ds {
#define COMPAT_ELF_NGREG 80
typedef compat_ulong_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
- return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
- return (u32)(unsigned long)uptr;
-}
-
static __inline__ void __user *arch_compat_alloc_user_space(long len)
{
struct pt_regs *regs = &current->thread.regs;
diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 46212b52c23e..cab8f64ca4a2 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -128,9 +128,8 @@ static inline void gsc_writeq(unsigned long long val, unsigned long addr)
* The standard PCI ioremap interfaces
*/
void __iomem *ioremap(unsigned long offset, unsigned long size);
-#define ioremap_nocache(off, sz) ioremap((off), (sz))
-#define ioremap_wc ioremap_nocache
-#define ioremap_uc ioremap_nocache
+#define ioremap_wc ioremap
+#define ioremap_uc ioremap
extern void iounmap(const volatile void __iomem *addr);
diff --git a/arch/parisc/include/asm/kexec.h b/arch/parisc/include/asm/kexec.h
index a99ea747d7ed..87e174006995 100644
--- a/arch/parisc/include/asm/kexec.h
+++ b/arch/parisc/include/asm/kexec.h
@@ -2,8 +2,6 @@
#ifndef _ASM_PARISC_KEXEC_H
#define _ASM_PARISC_KEXEC_H
-#ifdef CONFIG_KEXEC
-
/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/* Maximum address we can reach in physical address mode */
@@ -32,6 +30,4 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
#endif /* __ASSEMBLY__ */
-#endif /* CONFIG_KEXEC */
-
#endif /* _ASM_PARISC_KEXEC_H */
diff --git a/arch/parisc/include/asm/vmalloc.h b/arch/parisc/include/asm/vmalloc.h
new file mode 100644
index 000000000000..1088ae4e7af9
--- /dev/null
+++ b/arch/parisc/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_PARISC_VMALLOC_H
+#define _ASM_PARISC_VMALLOC_H
+
+#endif /* _ASM_PARISC_VMALLOC_H */
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 2663c8f8be11..068d90950d93 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -37,5 +37,5 @@ obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_KPROBES) += kprobes.o
-obj-$(CONFIG_KEXEC) += kexec.o relocate_kernel.o
+obj-$(CONFIG_KEXEC_CORE) += kexec.o relocate_kernel.o
obj-$(CONFIG_KEXEC_FILE) += kexec_file.o
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 3b330e58a4f0..a5f3e50fe976 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -810,7 +810,7 @@ EXPORT_SYMBOL(device_to_hwpath);
static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
struct device *parent);
-static void walk_lower_bus(struct parisc_device *dev)
+static void __init walk_lower_bus(struct parisc_device *dev)
{
unsigned long io_io_low, io_io_high;
@@ -889,8 +889,8 @@ static void print_parisc_device(struct parisc_device *dev)
static int count;
print_pa_hwpath(dev, hw_path);
- pr_info("%d. %s at 0x%px [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
- ++count, dev->name, (void*) dev->hpa.start, hw_path, dev->id.hw_type,
+ pr_info("%d. %s at %pap [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
+ ++count, dev->name, &(dev->hpa.start), hw_path, dev->id.hw_type,
dev->id.hversion_rev, dev->id.hversion, dev->id.sversion);
if (dev->num_addrs) {
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index b96d74496977..9a03e29c8733 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -940,14 +940,14 @@ intr_restore:
rfi
nop
-#ifndef CONFIG_PREEMPT
+#ifndef CONFIG_PREEMPTION
# define intr_do_preempt intr_restore
-#endif /* !CONFIG_PREEMPT */
+#endif /* !CONFIG_PREEMPTION */
.import schedule,code
intr_do_resched:
/* Only call schedule on return to userspace. If we're returning
- * to kernel space, we may schedule if CONFIG_PREEMPT, otherwise
+ * to kernel space, we may schedule if CONFIG_PREEMPTION, otherwise
* we jump back to intr_restore.
*/
LDREG PT_IASQ0(%r16), %r20
@@ -979,7 +979,7 @@ intr_do_resched:
* and preempt_count is 0. otherwise, we continue on
* our merry way back to the current running task.
*/
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
.import preempt_schedule_irq,code
intr_do_preempt:
rsm PSW_SM_I, %r0 /* disable interrupts */
@@ -999,7 +999,7 @@ intr_do_preempt:
nop
b,n intr_restore /* ssm PSW_SM_I done by intr_restore */
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
/*
* External interrupts.
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index 36434d4da381..749c4579db0d 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -327,8 +327,7 @@ static int pdt_mainloop(void *unused)
((pde & PDT_ADDR_SINGLE_ERR) == 0))
memory_failure(pde >> PAGE_SHIFT, 0);
else
- soft_offline_page(
- pfn_to_page(pde >> PAGE_SHIFT), 0);
+ soft_offline_page(pde >> PAGE_SHIFT, 0);
#else
pr_crit("PDT: memory error at 0x%lx ignored.\n"
"Rebuild kernel with CONFIG_MEMORY_FAILURE=y "
diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c
index 676683641d00..e1a8fee3ad49 100644
--- a/arch/parisc/kernel/perf.c
+++ b/arch/parisc/kernel/perf.c
@@ -792,7 +792,7 @@ static int perf_write_image(uint64_t *memaddr)
return -1;
}
- runway = ioremap_nocache(cpu_device->hpa.start, 4096);
+ runway = ioremap(cpu_device->hpa.start, 4096);
if (!runway) {
pr_err("perf_write_image: ioremap failed!\n");
return -ENOMEM;
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index ecc5c2771208..230a6422b99f 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -208,8 +208,8 @@ arch_initcall(parisc_idle_init);
* Copy architecture-specific thread state
*/
int
-copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long kthread_arg, struct task_struct *p)
+copy_thread_tls(unsigned long clone_flags, unsigned long usp,
+ unsigned long kthread_arg, struct task_struct *p, unsigned long tls)
{
struct pt_regs *cregs = &(p->thread.regs);
void *stack = task_stack_page(p);
@@ -254,9 +254,9 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE;
cregs->kpc = (unsigned long) &child_return;
- /* Setup thread TLS area from the 4th parameter in clone */
+ /* Setup thread TLS area */
if (clone_flags & CLONE_SETTLS)
- cregs->cr27 = cregs->gr[23];
+ cregs->cr27 = tls;
}
return 0;
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 53a21ce927de..e320bae501d3 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -151,10 +151,6 @@ void __init setup_arch(char **cmdline_p)
dma_ops_init();
#endif
-#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con; /* we use do_take_over_console() later ! */
-#endif
-
clear_sched_clock_stable();
}
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index 285ff516150c..52a15f5cd130 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -433,3 +433,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
435 common clone3 sys_clone3_wrapper
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index ddca8287d43b..354cf060b67f 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -401,7 +401,7 @@ static void __init map_pages(unsigned long start_vaddr,
pmd = (pmd_t *) __pa(pmd);
}
- pgd_populate(NULL, pg_dir, __va(pmd));
+ pud_populate(NULL, (pud_t *)pg_dir, __va(pmd));
#endif
pg_dir++;
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1ec34e16ed65..c150a9d49343 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -106,7 +106,7 @@ config LOCKDEP_SUPPORT
config GENERIC_LOCKBREAK
bool
default y
- depends on SMP && PREEMPT
+ depends on SMP && PREEMPTION
config GENERIC_HWEIGHT
bool
@@ -149,7 +149,7 @@ config PPC
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_WEAK_RELEASE_ACQUIRE
select BINFMT_ELF
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS
select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
select DYNAMIC_FTRACE if FUNCTION_TRACER
@@ -238,6 +238,7 @@ config PPC
select NEED_DMA_MAP_STATE if PPC64 || NOT_COHERENT_CACHE
select NEED_SG_DMA_LENGTH
select OF
+ select OF_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE
select OF_EARLY_FLATTREE
select OLD_SIGACTION if PPC32
select OLD_SIGSUSPEND
@@ -455,11 +456,7 @@ config PPC_TRANSACTIONAL_MEM
config PPC_UV
bool "Ultravisor support"
depends on KVM_BOOK3S_HV_POSSIBLE
- select ZONE_DEVICE
- select DEV_PAGEMAP_OPS
- select DEVICE_PRIVATE
- select MEMORY_HOTPLUG
- select MEMORY_HOTREMOVE
+ depends on DEVICE_PRIVATE
default n
help
This option paravirtualizes the kernel to run in POWER platforms that
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0-best-effort.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0-best-effort.dtsi
index e1a961f05dcd..baa0c503e741 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0-best-effort.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0-best-effort.dtsi
@@ -63,6 +63,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe1000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy0: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0.dtsi
index c288f3c6c637..93095600e808 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-0.dtsi
@@ -60,6 +60,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xf1000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy6: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1-best-effort.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1-best-effort.dtsi
index 94f3e7175012..ff4bd38f0645 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1-best-effort.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1-best-effort.dtsi
@@ -63,6 +63,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe3000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy1: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1.dtsi
index 94a76982d214..1fa38ed6f59e 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-10g-1.dtsi
@@ -60,6 +60,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xf3000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy7: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-0.dtsi
index b5ff5f71c6b8..a8cc9780c0c4 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-0.dtsi
@@ -59,6 +59,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe1000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy0: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-1.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-1.dtsi
index ee44182c6348..8b8bd70c9382 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-1.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-1.dtsi
@@ -59,6 +59,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe3000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy1: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-2.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-2.dtsi
index f05f0d775039..619c880b54d8 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-2.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-2.dtsi
@@ -59,6 +59,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe5000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy2: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-3.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-3.dtsi
index a9114ec51075..d7ebb73a400d 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-3.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-3.dtsi
@@ -59,6 +59,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe7000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy3: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-4.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-4.dtsi
index 44dd00ac7367..b151d696a069 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-4.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-4.dtsi
@@ -59,6 +59,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe9000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy4: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-5.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-5.dtsi
index 5b1b84b58602..adc0ae0013a3 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-5.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-0-1g-5.dtsi
@@ -59,6 +59,7 @@ fman@400000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xeb000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy5: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-0.dtsi
index 0e1daaef9e74..435047e0e250 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-0.dtsi
@@ -60,6 +60,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xf1000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy14: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-1.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-1.dtsi
index 68c5ef779266..c098657cca0a 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-1.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-10g-1.dtsi
@@ -60,6 +60,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xf3000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy15: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-0.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-0.dtsi
index 605363cc1117..9d06824815f3 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-0.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-0.dtsi
@@ -59,6 +59,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe1000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy8: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-1.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-1.dtsi
index 1955dfa13634..70e947730c4b 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-1.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-1.dtsi
@@ -59,6 +59,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe3000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy9: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-2.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-2.dtsi
index 2c1476454ee0..ad96e6529595 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-2.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-2.dtsi
@@ -59,6 +59,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe5000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy10: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-3.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-3.dtsi
index b8b541ff5fb0..034bc4b71f7a 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-3.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-3.dtsi
@@ -59,6 +59,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe7000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy11: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-4.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-4.dtsi
index 4b2cfddd1b15..93ca23d82b39 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-4.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-4.dtsi
@@ -59,6 +59,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xe9000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy12: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-5.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-5.dtsi
index 0a52ddf7cc17..23b3117a2fd2 100644
--- a/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-5.dtsi
+++ b/arch/powerpc/boot/dts/fsl/qoriq-fman3-1-1g-5.dtsi
@@ -59,6 +59,7 @@ fman@500000 {
#size-cells = <0>;
compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
reg = <0xeb000 0x1000>;
+ fsl,erratum-a011043; /* must ignore read errors */
pcsphy13: ethernet-phy@0 {
reg = <0x0>;
diff --git a/arch/powerpc/crypto/aes-spe-glue.c b/arch/powerpc/crypto/aes-spe-glue.c
index 1fad5d4c658d..c2b23b69d7b1 100644
--- a/arch/powerpc/crypto/aes-spe-glue.c
+++ b/arch/powerpc/crypto/aes-spe-glue.c
@@ -94,13 +94,6 @@ static int ppc_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
{
struct ppc_aes_ctx *ctx = crypto_tfm_ctx(tfm);
- if (key_len != AES_KEYSIZE_128 &&
- key_len != AES_KEYSIZE_192 &&
- key_len != AES_KEYSIZE_256) {
- tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
-
switch (key_len) {
case AES_KEYSIZE_128:
ctx->rounds = 4;
@@ -114,6 +107,8 @@ static int ppc_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
ctx->rounds = 6;
ppc_expand_key_256(ctx->key_enc, in_key);
break;
+ default:
+ return -EINVAL;
}
ppc_generate_decrypt_key(ctx->key_dec, ctx->key_enc, key_len);
@@ -139,13 +134,6 @@ static int ppc_xts_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
key_len >>= 1;
- if (key_len != AES_KEYSIZE_128 &&
- key_len != AES_KEYSIZE_192 &&
- key_len != AES_KEYSIZE_256) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
-
switch (key_len) {
case AES_KEYSIZE_128:
ctx->rounds = 4;
@@ -162,6 +150,8 @@ static int ppc_xts_setkey(struct crypto_skcipher *tfm, const u8 *in_key,
ppc_expand_key_256(ctx->key_enc, in_key);
ppc_expand_key_256(ctx->key_twk, in_key + AES_KEYSIZE_256);
break;
+ default:
+ return -EINVAL;
}
ppc_generate_decrypt_key(ctx->key_dec, ctx->key_enc, key_len);
diff --git a/arch/powerpc/crypto/crc32c-vpmsum_glue.c b/arch/powerpc/crypto/crc32c-vpmsum_glue.c
index 2c232898b933..63760b7dbb76 100644
--- a/arch/powerpc/crypto/crc32c-vpmsum_glue.c
+++ b/arch/powerpc/crypto/crc32c-vpmsum_glue.c
@@ -73,10 +73,8 @@ static int crc32c_vpmsum_setkey(struct crypto_shash *hash, const u8 *key,
{
u32 *mctx = crypto_shash_ctx(hash);
- if (keylen != sizeof(u32)) {
- crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(u32))
return -EINVAL;
- }
*mctx = le32_to_cpup((__le32 *)key);
return 0;
}
diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
index fbe8df433019..123adcefd40f 100644
--- a/arch/powerpc/include/asm/barrier.h
+++ b/arch/powerpc/include/asm/barrier.h
@@ -18,8 +18,6 @@
* mb() prevents loads and stores being reordered across this point.
* rmb() prevents loads being reordered across this point.
* wmb() prevents stores being reordered across this point.
- * read_barrier_depends() prevents data-dependent loads being reordered
- * across this point (nop on PPC).
*
* *mb() variants without smp_ prefix must order all types of memory
* operations with one another. sync is the only instruction sufficient
diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
index 15b75005bc34..3fa1b962dc27 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
@@ -600,8 +600,11 @@ extern void slb_set_size(u16 size);
*
*/
#define MAX_USER_CONTEXT ((ASM_CONST(1) << CONTEXT_BITS) - 2)
+
+// The + 2 accounts for INVALID_REGION and 1 more to avoid overlap with kernel
#define MIN_USER_CONTEXT (MAX_KERNEL_CTX_CNT + MAX_VMALLOC_CTX_CNT + \
- MAX_IO_CTX_CNT + MAX_VMEMMAP_CTX_CNT)
+ MAX_IO_CTX_CNT + MAX_VMEMMAP_CTX_CNT + 2)
+
/*
* For platforms that support on 65bit VA we limit the context bits
*/
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index 74d0db511099..3e3cdfaa76c6 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -96,23 +96,6 @@ typedef u32 compat_sigset_word;
#define COMPAT_OFF_T_MAX 0x7fffffff
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
- return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
- return (u32)(unsigned long)uptr;
-}
-
static inline void __user *arch_compat_alloc_user_space(long len)
{
struct pt_regs *regs = current->thread.regs;
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index a63ec938636d..635969b5b58e 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -691,8 +691,6 @@ static inline void iosync(void)
* * ioremap_prot allows to specify the page flags as an argument and can
* also be hooked by the platform via ppc_md.
*
- * * ioremap_nocache is identical to ioremap
- *
* * ioremap_wc enables write combining
*
* * ioremap_wt enables write through
@@ -715,7 +713,6 @@ extern void __iomem *ioremap_prot(phys_addr_t address, unsigned long size,
extern void __iomem *ioremap_wc(phys_addr_t address, unsigned long size);
void __iomem *ioremap_wt(phys_addr_t address, unsigned long size);
void __iomem *ioremap_coherent(phys_addr_t address, unsigned long size);
-#define ioremap_nocache(addr, size) ioremap((addr), (size))
#define ioremap_uc(addr, size) ioremap((addr), (size))
#define ioremap_cache(addr, size) \
ioremap_prot((addr), (size), pgprot_val(PAGE_KERNEL))
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index e9a960e28f3c..860228e917dc 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -15,6 +15,7 @@
*
* (the type definitions are in asm/spinlock_types.h)
*/
+#include <linux/jump_label.h>
#include <linux/irqflags.h>
#ifdef CONFIG_PPC64
#include <asm/paca.h>
@@ -36,10 +37,12 @@
#endif
#ifdef CONFIG_PPC_PSERIES
+DECLARE_STATIC_KEY_FALSE(shared_processor);
+
#define vcpu_is_preempted vcpu_is_preempted
static inline bool vcpu_is_preempted(int cpu)
{
- if (!firmware_has_feature(FW_FEATURE_SPLPAR))
+ if (!static_branch_unlikely(&shared_processor))
return false;
return !!(be32_to_cpu(lppaca_of(cpu).yield_count) & 1);
}
@@ -110,13 +113,8 @@ static inline void splpar_rw_yield(arch_rwlock_t *lock) {};
static inline bool is_shared_processor(void)
{
-/*
- * LPPACA is only available on Pseries so guard anything LPPACA related to
- * allow other platforms (which include this common header) to compile.
- */
-#ifdef CONFIG_PPC_PSERIES
- return (IS_ENABLED(CONFIG_PPC_SPLPAR) &&
- lppaca_shared_proc(local_paca->lppaca_ptr));
+#ifdef CONFIG_PPC_SPLPAR
+ return static_branch_unlikely(&shared_processor);
#else
return false;
#endif
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 15002b51ff18..c92fe7fe9692 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -401,7 +401,7 @@ copy_to_user_mcsafe(void __user *to, const void *from, unsigned long n)
return n;
}
-extern unsigned long __clear_user(void __user *addr, unsigned long size);
+unsigned long __arch_clear_user(void __user *addr, unsigned long size);
static inline unsigned long clear_user(void __user *addr, unsigned long size)
{
@@ -409,12 +409,17 @@ static inline unsigned long clear_user(void __user *addr, unsigned long size)
might_fault();
if (likely(access_ok(addr, size))) {
allow_write_to_user(addr, size);
- ret = __clear_user(addr, size);
+ ret = __arch_clear_user(addr, size);
prevent_write_to_user(addr, size);
}
return ret;
}
+static inline unsigned long __clear_user(void __user *addr, unsigned long size)
+{
+ return clear_user(addr, size);
+}
+
extern long strncpy_from_user(char *dst, const char __user *src, long count);
extern __must_check long strnlen_user(const char __user *str, long n);
diff --git a/arch/powerpc/include/asm/vmalloc.h b/arch/powerpc/include/asm/vmalloc.h
new file mode 100644
index 000000000000..b992dfaaa161
--- /dev/null
+++ b/arch/powerpc/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_POWERPC_VMALLOC_H
+#define _ASM_POWERPC_VMALLOC_H
+
+#endif /* _ASM_POWERPC_VMALLOC_H */
diff --git a/arch/powerpc/include/asm/xive-regs.h b/arch/powerpc/include/asm/xive-regs.h
index f2dfcd50a2d3..33aee7490cbb 100644
--- a/arch/powerpc/include/asm/xive-regs.h
+++ b/arch/powerpc/include/asm/xive-regs.h
@@ -39,6 +39,7 @@
#define XIVE_ESB_VAL_P 0x2
#define XIVE_ESB_VAL_Q 0x1
+#define XIVE_ESB_INVALID 0xFF
/*
* Thread Management (aka "TM") registers
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index d60908ea37fb..e1a4c39b83b8 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -897,7 +897,7 @@ resume_kernel:
bne- 0b
1:
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
/* check current_thread_info->preempt_count */
lwz r0,TI_PREEMPT(r2)
cmpwi 0,r0,0 /* if non-zero, just restore regs and return */
@@ -921,7 +921,7 @@ resume_kernel:
*/
bl trace_hardirqs_on
#endif
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
restore_kuap:
kuap_restore r1, r2, r9, r10, r0
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 3fd3ef352e3f..a9a1d3cdb523 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -846,7 +846,7 @@ resume_kernel:
bne- 0b
1:
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
/* Check if we need to preempt */
andi. r0,r4,_TIF_NEED_RESCHED
beq+ restore
@@ -877,7 +877,7 @@ resume_kernel:
li r10,MSR_RI
mtmsrd r10,1 /* Update machine state */
#endif /* CONFIG_PPC_BOOK3E */
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
.globl fast_exc_return_irq
fast_exc_return_irq:
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 5645bc9cbc09..add67498c126 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -619,8 +619,6 @@ void __do_irq(struct pt_regs *regs)
trace_irq_entry(regs);
- check_stack_overflow();
-
/*
* Query the platform PIC for the interrupt & ack it.
*
@@ -652,6 +650,8 @@ void do_IRQ(struct pt_regs *regs)
irqsp = hardirq_ctx[raw_smp_processor_id()];
sirqsp = softirq_ctx[raw_smp_processor_id()];
+ check_stack_overflow();
+
/* Already there ? */
if (unlikely(cursp == irqsp || cursp == sirqsp)) {
__do_irq(regs);
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 7cea5978f21f..f061e06e9f51 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -479,8 +479,10 @@ static void __init fixup_port_irq(int index,
port->irq = virq;
#ifdef CONFIG_SERIAL_8250_FSL
- if (of_device_is_compatible(np, "fsl,ns16550"))
+ if (of_device_is_compatible(np, "fsl,ns16550")) {
port->handle_irq = fsl8250_handle_irq;
+ port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_8250_CONSOLE);
+ }
#endif
}
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 488f1eecc0de..7f8c890360fe 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -949,9 +949,6 @@ void __init setup_arch(char **cmdline_p)
early_memtest(min_low_pfn << PAGE_SHIFT, max_low_pfn << PAGE_SHIFT);
- if (IS_ENABLED(CONFIG_DUMMY_CONSOLE))
- conswitchp = &dummy_con;
-
if (ppc_md.setup_arch)
ppc_md.setup_arch();
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 43f736ed47f2..35b61bfc1b1a 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -517,3 +517,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
435 nospu clone3 ppc_clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index dc53578193ee..6ff3f896d908 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -4983,7 +4983,8 @@ static void kvmppc_core_destroy_vm_hv(struct kvm *kvm)
if (nesting_enabled(kvm))
kvmhv_release_all_nested(kvm);
kvm->arch.process_table = 0;
- uv_svm_terminate(kvm->arch.lpid);
+ if (kvm->arch.secure_guest)
+ uv_svm_terminate(kvm->arch.lpid);
kvmhv_set_ptbl_entry(kvm->arch.lpid, 0, 0);
}
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 0496e66aaa56..c6fbbd29bd87 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1117,7 +1117,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
ld r7, VCPU_GPR(R7)(r4)
bne ret_to_ultra
- lwz r0, VCPU_CR(r4)
+ ld r0, VCPU_CR(r4)
mtcr r0
ld r0, VCPU_GPR(R0)(r4)
@@ -1137,7 +1137,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
* R3 = UV_RETURN
*/
ret_to_ultra:
- lwz r0, VCPU_CR(r4)
+ ld r0, VCPU_CR(r4)
mtcr r0
ld r0, VCPU_GPR(R3)(r4)
diff --git a/arch/powerpc/lib/string_32.S b/arch/powerpc/lib/string_32.S
index f69a6aab7bfb..1ddb26394e8a 100644
--- a/arch/powerpc/lib/string_32.S
+++ b/arch/powerpc/lib/string_32.S
@@ -17,7 +17,7 @@ CACHELINE_BYTES = L1_CACHE_BYTES
LG_CACHELINE_BYTES = L1_CACHE_SHIFT
CACHELINE_MASK = (L1_CACHE_BYTES-1)
-_GLOBAL(__clear_user)
+_GLOBAL(__arch_clear_user)
/*
* Use dcbz on the complete cache lines in the destination
* to set them to zero. This requires that the destination
@@ -87,4 +87,4 @@ _GLOBAL(__clear_user)
EX_TABLE(8b, 91b)
EX_TABLE(9b, 91b)
-EXPORT_SYMBOL(__clear_user)
+EXPORT_SYMBOL(__arch_clear_user)
diff --git a/arch/powerpc/lib/string_64.S b/arch/powerpc/lib/string_64.S
index 507b18b1660e..169872bc0892 100644
--- a/arch/powerpc/lib/string_64.S
+++ b/arch/powerpc/lib/string_64.S
@@ -17,7 +17,7 @@ PPC64_CACHES:
.section ".text"
/**
- * __clear_user: - Zero a block of memory in user space, with less checking.
+ * __arch_clear_user: - Zero a block of memory in user space, with less checking.
* @to: Destination address, in user space.
* @n: Number of bytes to zero.
*
@@ -58,7 +58,7 @@ err3; stb r0,0(r3)
mr r3,r4
blr
-_GLOBAL_TOC(__clear_user)
+_GLOBAL_TOC(__arch_clear_user)
cmpdi r4,32
neg r6,r3
li r0,0
@@ -181,4 +181,4 @@ err1; dcbz 0,r3
cmpdi r4,32
blt .Lshort_clear
b .Lmedium_clear
-EXPORT_SYMBOL(__clear_user)
+EXPORT_SYMBOL(__arch_clear_user)
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 9488b63dfc87..f5535eae637f 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -151,10 +151,9 @@ void __ref arch_remove_memory(int nid, u64 start, u64 size,
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct page *page = pfn_to_page(start_pfn) + vmem_altmap_offset(altmap);
int ret;
- __remove_pages(page_zone(page), start_pfn, nr_pages, altmap);
+ __remove_pages(start_pfn, nr_pages, altmap);
/* Remove htab bolted mappings for this section of memory */
start = (unsigned long)__va(start);
@@ -289,6 +288,14 @@ void __init mem_init(void)
BUILD_BUG_ON(MMU_PAGE_COUNT > 16);
#ifdef CONFIG_SWIOTLB
+ /*
+ * Some platforms (e.g. 85xx) limit DMA-able memory way below
+ * 4G. We force memblock to bottom-up mode to ensure that the
+ * memory allocated in swiotlb_init() is DMA-able.
+ * As it's the last memblock allocation, no need to reset it
+ * back to to-down.
+ */
+ memblock_set_bottom_up(true);
swiotlb_init(0);
#endif
diff --git a/arch/powerpc/mm/nohash/8xx.c b/arch/powerpc/mm/nohash/8xx.c
index 090af2d2d3e4..96eb8e43f39b 100644
--- a/arch/powerpc/mm/nohash/8xx.c
+++ b/arch/powerpc/mm/nohash/8xx.c
@@ -103,7 +103,7 @@ static void mmu_patch_addis(s32 *site, long simm)
patch_instruction_site(site, instr);
}
-void __init mmu_mapin_ram_chunk(unsigned long offset, unsigned long top, pgprot_t prot)
+static void mmu_mapin_ram_chunk(unsigned long offset, unsigned long top, pgprot_t prot)
{
unsigned long s = offset;
unsigned long v = PAGE_OFFSET + s;
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 42bbcd47cc85..dffe1a45b6ed 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -50,7 +50,7 @@ static void slice_print_mask(const char *label, const struct slice_mask *mask) {
#endif
-static inline bool slice_addr_is_low(unsigned long addr)
+static inline notrace bool slice_addr_is_low(unsigned long addr)
{
u64 tmp = (u64)addr;
@@ -659,7 +659,7 @@ unsigned long arch_get_unmapped_area_topdown(struct file *filp,
mm_ctx_user_psize(&current->mm->context), 1);
}
-unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr)
+unsigned int notrace get_slice_psize(struct mm_struct *mm, unsigned long addr)
{
unsigned char *psizes;
int index, mask_index;
diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c
index 43245f4a9bcb..6ffcb80cf844 100644
--- a/arch/powerpc/oprofile/backtrace.c
+++ b/arch/powerpc/oprofile/backtrace.c
@@ -9,7 +9,7 @@
#include <linux/sched.h>
#include <asm/processor.h>
#include <linux/uaccess.h>
-#include <asm/compat.h>
+#include <linux/compat.h>
#include <asm/oprofile_impl.h>
#define STACK_SP(STACK) *(STACK)
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 9680d766f20e..855eedb8d7d7 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -240,9 +240,6 @@ static void __init cell_setup_arch(void)
init_pci_config_tokens();
cbe_pervasive_init();
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
mmio_nvram_init();
}
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index 9cd6f3e1000b..47f73103ef74 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -183,9 +183,6 @@ static void __init maple_setup_arch(void)
/* Lookup PCI hosts */
maple_pci_init();
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
maple_use_rtas_reboot_and_halt_if_present();
printk(KERN_DEBUG "Using native/NAP idle loop\n");
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index 05a52f10c2f0..b612474f8f8e 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -147,10 +147,6 @@ static void __init pas_setup_arch(void)
/* Lookup PCI hosts */
pas_pci_init();
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
/* Remap SDC register for doing reset */
/* XXXOJN This should maybe come out of the device tree */
reset_reg = ioremap(0xfc101100, 4);
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 8108b9b9b9ea..b29368931c56 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -200,10 +200,6 @@ static void __init ps3_setup_arch(void)
smp_init_ps3();
#endif
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
prealloc_ps3fb_videomemory();
prealloc_ps3flash_bounce_buffer();
diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c
index 91571841df8a..9dba7e880885 100644
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@@ -539,6 +539,16 @@ static int cmm_migratepage(struct balloon_dev_info *b_dev_info,
/* balloon page list reference */
get_page(newpage);
+ /*
+ * When we migrate a page to a different zone, we have to fixup the
+ * count of both involved zones as we adjusted the managed page count
+ * when inflating.
+ */
+ if (page_zone(page) != page_zone(newpage)) {
+ adjust_managed_page_count(page, 1);
+ adjust_managed_page_count(newpage, -1);
+ }
+
spin_lock_irqsave(&b_dev_info->pages_lock, flags);
balloon_page_insert(b_dev_info, newpage);
balloon_page_delete(page);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 0a40201f315f..0c8421dd01ab 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -74,6 +74,9 @@
#include "pseries.h"
#include "../../../../drivers/pci/pci.h"
+DEFINE_STATIC_KEY_FALSE(shared_processor);
+EXPORT_SYMBOL_GPL(shared_processor);
+
int CMO_PrPSP = -1;
int CMO_SecPSP = -1;
unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT_4K);
@@ -758,6 +761,10 @@ static void __init pSeries_setup_arch(void)
if (firmware_has_feature(FW_FEATURE_LPAR)) {
vpa_init(boot_cpuid);
+
+ if (lppaca_shared_proc(get_lppaca()))
+ static_branch_enable(&shared_processor);
+
ppc_md.power_save = pseries_lpar_idle;
ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
#ifdef CONFIG_PCI_IOV
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index f5fadbd2533a..9651ca061828 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -972,12 +972,21 @@ static int xive_get_irqchip_state(struct irq_data *data,
enum irqchip_irq_state which, bool *state)
{
struct xive_irq_data *xd = irq_data_get_irq_handler_data(data);
+ u8 pq;
switch (which) {
case IRQCHIP_STATE_ACTIVE:
- *state = !xd->stale_p &&
- (xd->saved_p ||
- !!(xive_esb_read(xd, XIVE_ESB_GET) & XIVE_ESB_VAL_P));
+ pq = xive_esb_read(xd, XIVE_ESB_GET);
+
+ /*
+ * The esb value being all 1's means we couldn't get
+ * the PQ state of the interrupt through mmio. It may
+ * happen, for example when querying a PHB interrupt
+ * while the PHB is in an error state. We consider the
+ * interrupt to be inactive in that case.
+ */
+ *state = (pq != XIVE_ESB_INVALID) && !xd->stale_p &&
+ (xd->saved_p || !!(pq & XIVE_ESB_VAL_P));
return 0;
default:
return -EINVAL;
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 759ffb00267c..fa7dc03459e7 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -64,6 +64,8 @@ config RISCV
select SPARSEMEM_STATIC if 32BIT
select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
select HAVE_ARCH_MMAP_RND_BITS if MMU
+ select ARCH_HAS_GCOV_PROFILE_ALL
+ select HAVE_COPY_THREAD_TLS
config ARCH_MMAP_RND_BITS_MIN
default 18 if 64BIT
@@ -154,7 +156,7 @@ config GENERIC_HWEIGHT
def_bool y
config FIX_EARLYCON_MEM
- def_bool CONFIG_MMU
+ def_bool MMU
config PGTABLE_LEVELS
int
diff --git a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
index 70a1891e7cd0..a2e3d54e830c 100644
--- a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
+++ b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
@@ -54,6 +54,7 @@
reg = <1>;
riscv,isa = "rv64imafdc";
tlb-split;
+ next-level-cache = <&l2cache>;
cpu1_intc: interrupt-controller {
#interrupt-cells = <1>;
compatible = "riscv,cpu-intc";
@@ -77,6 +78,7 @@
reg = <2>;
riscv,isa = "rv64imafdc";
tlb-split;
+ next-level-cache = <&l2cache>;
cpu2_intc: interrupt-controller {
#interrupt-cells = <1>;
compatible = "riscv,cpu-intc";
@@ -100,6 +102,7 @@
reg = <3>;
riscv,isa = "rv64imafdc";
tlb-split;
+ next-level-cache = <&l2cache>;
cpu3_intc: interrupt-controller {
#interrupt-cells = <1>;
compatible = "riscv,cpu-intc";
@@ -123,6 +126,7 @@
reg = <4>;
riscv,isa = "rv64imafdc";
tlb-split;
+ next-level-cache = <&l2cache>;
cpu4_intc: interrupt-controller {
#interrupt-cells = <1>;
compatible = "riscv,cpu-intc";
@@ -253,6 +257,17 @@
#pwm-cells = <3>;
status = "disabled";
};
+ l2cache: cache-controller@2010000 {
+ compatible = "sifive,fu540-c000-ccache", "cache";
+ cache-block-size = <64>;
+ cache-level = <2>;
+ cache-sets = <1024>;
+ cache-size = <2097152>;
+ cache-unified;
+ interrupt-parent = <&plic0>;
+ interrupts = <1 2 3>;
+ reg = <0x0 0x2010000 0x0 0x1000>;
+ };
};
};
diff --git a/arch/riscv/include/asm/asm-prototypes.h b/arch/riscv/include/asm/asm-prototypes.h
index dd62b691c443..27e005fca584 100644
--- a/arch/riscv/include/asm/asm-prototypes.h
+++ b/arch/riscv/include/asm/asm-prototypes.h
@@ -5,4 +5,8 @@
#include <linux/ftrace.h>
#include <asm-generic/asm-prototypes.h>
+long long __lshrti3(long long a, int b);
+long long __ashrti3(long long a, int b);
+long long __ashlti3(long long a, int b);
+
#endif /* _ASM_RISCV_PROTOTYPES_H */
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 0a62d2d68455..435b65532e29 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -116,9 +116,9 @@
# define SR_PIE SR_MPIE
# define SR_PP SR_MPP
-# define IRQ_SOFT IRQ_M_SOFT
-# define IRQ_TIMER IRQ_M_TIMER
-# define IRQ_EXT IRQ_M_EXT
+# define RV_IRQ_SOFT IRQ_M_SOFT
+# define RV_IRQ_TIMER IRQ_M_TIMER
+# define RV_IRQ_EXT IRQ_M_EXT
#else /* CONFIG_RISCV_M_MODE */
# define CSR_STATUS CSR_SSTATUS
# define CSR_IE CSR_SIE
@@ -133,15 +133,15 @@
# define SR_PIE SR_SPIE
# define SR_PP SR_SPP
-# define IRQ_SOFT IRQ_S_SOFT
-# define IRQ_TIMER IRQ_S_TIMER
-# define IRQ_EXT IRQ_S_EXT
+# define RV_IRQ_SOFT IRQ_S_SOFT
+# define RV_IRQ_TIMER IRQ_S_TIMER
+# define RV_IRQ_EXT IRQ_S_EXT
#endif /* CONFIG_RISCV_M_MODE */
/* IE/IP (Supervisor/Machine Interrupt Enable/Pending) flags */
-#define IE_SIE (_AC(0x1, UL) << IRQ_SOFT)
-#define IE_TIE (_AC(0x1, UL) << IRQ_TIMER)
-#define IE_EIE (_AC(0x1, UL) << IRQ_EXT)
+#define IE_SIE (_AC(0x1, UL) << RV_IRQ_SOFT)
+#define IE_TIE (_AC(0x1, UL) << RV_IRQ_TIMER)
+#define IE_EIE (_AC(0x1, UL) << RV_IRQ_EXT)
#ifndef __ASSEMBLY__
diff --git a/arch/riscv/include/asm/image.h b/arch/riscv/include/asm/image.h
index 7b0f92ba0acc..e0b319af3681 100644
--- a/arch/riscv/include/asm/image.h
+++ b/arch/riscv/include/asm/image.h
@@ -42,7 +42,7 @@
* @res2: reserved
* @magic: Magic number (RISC-V specific; deprecated)
* @magic2: Magic number 2 (to match the ARM64 'magic' field pos)
- * @res4: reserved (will be used for PE COFF offset)
+ * @res3: reserved (will be used for PE COFF offset)
*
* The intention is for this header format to be shared between multiple
* architectures to avoid a proliferation of image header formats.
@@ -59,7 +59,7 @@ struct riscv_image_header {
u64 res2;
u64 magic;
u32 magic2;
- u32 res4;
+ u32 res3;
};
#endif /* __ASSEMBLY__ */
#endif /* _ASM_RISCV_IMAGE_H */
diff --git a/arch/riscv/include/asm/perf_event.h b/arch/riscv/include/asm/perf_event.h
index aefbfaa6a781..0234048b12bc 100644
--- a/arch/riscv/include/asm/perf_event.h
+++ b/arch/riscv/include/asm/perf_event.h
@@ -82,4 +82,8 @@ struct riscv_pmu {
int irq;
};
+#ifdef CONFIG_PERF_EVENTS
+#define perf_arch_bpf_user_pt_regs(regs) (struct user_regs_struct *)regs
+#endif
+
#endif /* _ASM_RISCV_PERF_EVENT_H */
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 7ff0ed4f292e..f66b87314fa2 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -90,6 +90,31 @@ extern pgd_t swapper_pg_dir[];
#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
+#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1)
+#define VMALLOC_END (PAGE_OFFSET - 1)
+#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE)
+
+#define BPF_JIT_REGION_SIZE (SZ_128M)
+#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE)
+#define BPF_JIT_REGION_END (VMALLOC_END)
+
+/*
+ * Roughly size the vmemmap space to be large enough to fit enough
+ * struct pages to map half the virtual address space. Then
+ * position vmemmap directly below the VMALLOC region.
+ */
+#define VMEMMAP_SHIFT \
+ (CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT)
+#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT)
+#define VMEMMAP_END (VMALLOC_START - 1)
+#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE)
+
+/*
+ * Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel
+ * is configured with CONFIG_SPARSEMEM_VMEMMAP enabled.
+ */
+#define vmemmap ((struct page *)VMEMMAP_START)
+
static inline int pmd_present(pmd_t pmd)
{
return (pmd_val(pmd) & (_PAGE_PRESENT | _PAGE_PROT_NONE));
@@ -400,23 +425,6 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
-#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1)
-#define VMALLOC_END (PAGE_OFFSET - 1)
-#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE)
-
-/*
- * Roughly size the vmemmap space to be large enough to fit enough
- * struct pages to map half the virtual address space. Then
- * position vmemmap directly below the VMALLOC region.
- */
-#define VMEMMAP_SHIFT \
- (CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT)
-#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT)
-#define VMEMMAP_END (VMALLOC_START - 1)
-#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE)
-
-#define vmemmap ((struct page *)VMEMMAP_START)
-
#define PCI_IO_SIZE SZ_16M
#define PCI_IO_END VMEMMAP_START
#define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE)
diff --git a/arch/riscv/include/asm/vmalloc.h b/arch/riscv/include/asm/vmalloc.h
new file mode 100644
index 000000000000..ff9abc00d139
--- /dev/null
+++ b/arch/riscv/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_RISCV_VMALLOC_H
+#define _ASM_RISCV_VMALLOC_H
+
+#endif /* _ASM_RISCV_VMALLOC_H */
diff --git a/arch/riscv/include/uapi/asm/bpf_perf_event.h b/arch/riscv/include/uapi/asm/bpf_perf_event.h
new file mode 100644
index 000000000000..6cb1c2823288
--- /dev/null
+++ b/arch/riscv/include/uapi/asm/bpf_perf_event.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__ASM_BPF_PERF_EVENT_H__
+#define _UAPI__ASM_BPF_PERF_EVENT_H__
+
+#include <asm/ptrace.h>
+
+typedef struct user_regs_struct bpf_user_pt_regs_t;
+
+#endif /* _UAPI__ASM_BPF_PERF_EVENT_H__ */
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index a1349ca64669..bad4d85b5e91 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -155,7 +155,7 @@ _save_context:
REG_L x2, PT_SP(sp)
.endm
-#if !IS_ENABLED(CONFIG_PREEMPT)
+#if !IS_ENABLED(CONFIG_PREEMPTION)
.set resume_kernel, restore_all
#endif
@@ -246,6 +246,7 @@ check_syscall_nr:
*/
li t1, -1
beq a7, t1, ret_from_syscall_rejected
+ blt a7, t1, 1f
/* Call syscall */
la s0, sys_call_table
slli t0, a7, RISCV_LGPTR
@@ -304,7 +305,7 @@ restore_all:
sret
#endif
-#if IS_ENABLED(CONFIG_PREEMPT)
+#if IS_ENABLED(CONFIG_PREEMPTION)
resume_kernel:
REG_L s0, TASK_TI_PREEMPT_COUNT(tp)
bnez s0, restore_all
diff --git a/arch/riscv/kernel/ftrace.c b/arch/riscv/kernel/ftrace.c
index b94d8db5ddcc..c40fdcdeb950 100644
--- a/arch/riscv/kernel/ftrace.c
+++ b/arch/riscv/kernel/ftrace.c
@@ -142,7 +142,7 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr,
*/
old = *parent;
- if (function_graph_enter(old, self_addr, frame_pointer, parent))
+ if (!function_graph_enter(old, self_addr, frame_pointer, parent))
*parent = return_hooker;
}
diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S
index 84a6f0a4b120..a4242be66966 100644
--- a/arch/riscv/kernel/head.S
+++ b/arch/riscv/kernel/head.S
@@ -80,7 +80,9 @@ _start_kernel:
#ifdef CONFIG_SMP
li t0, CONFIG_NR_CPUS
- bgeu a0, t0, .Lsecondary_park
+ blt a0, t0, .Lgood_cores
+ tail .Lsecondary_park
+.Lgood_cores:
#endif
/* Pick one hart to run the main boot sequence */
@@ -209,11 +211,6 @@ relocate:
tail smp_callin
#endif
-.align 2
-.Lsecondary_park:
- /* We lack SMP support or have too many harts, so park this hart */
- wfi
- j .Lsecondary_park
END(_start)
#ifdef CONFIG_RISCV_M_MODE
@@ -246,12 +243,12 @@ ENTRY(reset_regs)
li t4, 0
li t5, 0
li t6, 0
- csrw sscratch, 0
+ csrw CSR_SCRATCH, 0
#ifdef CONFIG_FPU
csrr t0, CSR_MISA
andi t0, t0, (COMPAT_HWCAP_ISA_F | COMPAT_HWCAP_ISA_D)
- bnez t0, .Lreset_regs_done
+ beqz t0, .Lreset_regs_done
li t1, SR_FS
csrs CSR_STATUS, t1
@@ -295,6 +292,13 @@ ENTRY(reset_regs)
END(reset_regs)
#endif /* CONFIG_RISCV_M_MODE */
+.section ".text", "ax",@progbits
+.align 2
+.Lsecondary_park:
+ /* We lack SMP support or have too many harts, so park this hart */
+ wfi
+ j .Lsecondary_park
+
__PAGE_ALIGNED_BSS
/* Empty zero page */
.balign PAGE_SIZE
diff --git a/arch/riscv/kernel/irq.c b/arch/riscv/kernel/irq.c
index 3f07a91d5afb..345c4f2eba13 100644
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@ -23,11 +23,11 @@ asmlinkage __visible void __irq_entry do_IRQ(struct pt_regs *regs)
irq_enter();
switch (regs->cause & ~CAUSE_IRQ_FLAG) {
- case IRQ_TIMER:
+ case RV_IRQ_TIMER:
riscv_timer_interrupt();
break;
#ifdef CONFIG_SMP
- case IRQ_SOFT:
+ case RV_IRQ_SOFT:
/*
* We only use software interrupts to pass IPIs, so if a non-SMP
* system gets one, then we don't know what to do.
@@ -35,7 +35,7 @@ asmlinkage __visible void __irq_entry do_IRQ(struct pt_regs *regs)
riscv_software_interrupt();
break;
#endif
- case IRQ_EXT:
+ case RV_IRQ_EXT:
handle_arch_irq(regs);
break;
default:
diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c
index 95a3031e5c7c..817cf7b0974c 100644
--- a/arch/riscv/kernel/process.c
+++ b/arch/riscv/kernel/process.c
@@ -99,8 +99,8 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
return 0;
}
-int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg, struct task_struct *p)
+int copy_thread_tls(unsigned long clone_flags, unsigned long usp,
+ unsigned long arg, struct task_struct *p, unsigned long tls)
{
struct pt_regs *childregs = task_pt_regs(p);
@@ -121,7 +121,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
if (usp) /* User fork */
childregs->sp = usp;
if (clone_flags & CLONE_SETTLS)
- childregs->tp = childregs->a5;
+ childregs->tp = tls;
childregs->a0 = 0; /* Return value of fork() */
p->thread.ra = (unsigned long)ret_from_fork;
}
diff --git a/arch/riscv/kernel/riscv_ksyms.c b/arch/riscv/kernel/riscv_ksyms.c
index 4800cf703186..2a02b7eebee0 100644
--- a/arch/riscv/kernel/riscv_ksyms.c
+++ b/arch/riscv/kernel/riscv_ksyms.c
@@ -9,8 +9,5 @@
/*
* Assembly functions that may be used (directly or indirectly) by modules
*/
-EXPORT_SYMBOL(__clear_user);
-EXPORT_SYMBOL(__asm_copy_to_user);
-EXPORT_SYMBOL(__asm_copy_from_user);
EXPORT_SYMBOL(memset);
EXPORT_SYMBOL(memcpy);
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index 365ff8420bfe..9babfcf3bb70 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -78,9 +78,5 @@ void __init setup_arch(char **cmdline_p)
setup_smp();
#endif
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
riscv_fill_hwcap();
}
diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile
index 49a5852fd07d..33b16f4212f7 100644
--- a/arch/riscv/kernel/vdso/Makefile
+++ b/arch/riscv/kernel/vdso/Makefile
@@ -58,7 +58,8 @@ quiet_cmd_vdsold = VDSOLD $@
cmd_vdsold = $(CC) $(KBUILD_CFLAGS) $(call cc-option, -no-pie) -nostdlib -nostartfiles $(SYSCFLAGS_$(@F)) \
-Wl,-T,$(filter-out FORCE,$^) -o $@.tmp && \
$(CROSS_COMPILE)objcopy \
- $(patsubst %, -G __vdso_%, $(vdso-syms)) $@.tmp $@
+ $(patsubst %, -G __vdso_%, $(vdso-syms)) $@.tmp $@ && \
+ rm $@.tmp
# install commands for the unstripped file
quiet_cmd_vdso_install = INSTALL $@
diff --git a/arch/riscv/lib/tishift.S b/arch/riscv/lib/tishift.S
index 15f9d54c7db6..ef90075c4b0a 100644
--- a/arch/riscv/lib/tishift.S
+++ b/arch/riscv/lib/tishift.S
@@ -4,34 +4,73 @@
*/
#include <linux/linkage.h>
+#include <asm-generic/export.h>
-ENTRY(__lshrti3)
+SYM_FUNC_START(__lshrti3)
beqz a2, .L1
li a5,64
sub a5,a5,a2
- addi sp,sp,-16
sext.w a4,a5
blez a5, .L2
sext.w a2,a2
- sll a4,a1,a4
srl a0,a0,a2
- srl a1,a1,a2
+ sll a4,a1,a4
+ srl a2,a1,a2
or a0,a0,a4
- sd a1,8(sp)
- sd a0,0(sp)
- ld a0,0(sp)
- ld a1,8(sp)
- addi sp,sp,16
- ret
+ mv a1,a2
.L1:
ret
.L2:
- negw a4,a4
- srl a1,a1,a4
- sd a1,0(sp)
- sd zero,8(sp)
- ld a0,0(sp)
- ld a1,8(sp)
- addi sp,sp,16
+ negw a0,a4
+ li a2,0
+ srl a0,a1,a0
+ mv a1,a2
+ ret
+SYM_FUNC_END(__lshrti3)
+EXPORT_SYMBOL(__lshrti3)
+
+SYM_FUNC_START(__ashrti3)
+ beqz a2, .L3
+ li a5,64
+ sub a5,a5,a2
+ sext.w a4,a5
+ blez a5, .L4
+ sext.w a2,a2
+ srl a0,a0,a2
+ sll a4,a1,a4
+ sra a2,a1,a2
+ or a0,a0,a4
+ mv a1,a2
+.L3:
+ ret
+.L4:
+ negw a0,a4
+ srai a2,a1,0x3f
+ sra a0,a1,a0
+ mv a1,a2
+ ret
+SYM_FUNC_END(__ashrti3)
+EXPORT_SYMBOL(__ashrti3)
+
+SYM_FUNC_START(__ashlti3)
+ beqz a2, .L5
+ li a5,64
+ sub a5,a5,a2
+ sext.w a4,a5
+ blez a5, .L6
+ sext.w a2,a2
+ sll a1,a1,a2
+ srl a4,a0,a4
+ sll a2,a0,a2
+ or a1,a1,a4
+ mv a0,a2
+.L5:
+ ret
+.L6:
+ negw a1,a4
+ li a2,0
+ sll a1,a0,a1
+ mv a0,a2
ret
-ENDPROC(__lshrti3)
+SYM_FUNC_END(__ashlti3)
+EXPORT_SYMBOL(__ashlti3)
diff --git a/arch/riscv/lib/uaccess.S b/arch/riscv/lib/uaccess.S
index fecd65657a6f..f29d2ba2c0a6 100644
--- a/arch/riscv/lib/uaccess.S
+++ b/arch/riscv/lib/uaccess.S
@@ -1,4 +1,5 @@
#include <linux/linkage.h>
+#include <asm-generic/export.h>
#include <asm/asm.h>
#include <asm/csr.h>
@@ -66,6 +67,8 @@ ENTRY(__asm_copy_from_user)
j 3b
ENDPROC(__asm_copy_to_user)
ENDPROC(__asm_copy_from_user)
+EXPORT_SYMBOL(__asm_copy_to_user)
+EXPORT_SYMBOL(__asm_copy_from_user)
ENTRY(__clear_user)
@@ -108,6 +111,7 @@ ENTRY(__clear_user)
bltu a0, a3, 5b
j 3b
ENDPROC(__clear_user)
+EXPORT_SYMBOL(__clear_user)
.section .fixup,"ax"
.balign 4
diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
index 3c8b33258457..a1bd95c8047a 100644
--- a/arch/riscv/mm/Makefile
+++ b/arch/riscv/mm/Makefile
@@ -10,7 +10,6 @@ obj-y += extable.o
obj-$(CONFIG_MMU) += fault.o
obj-y += cacheflush.o
obj-y += context.o
-obj-y += sifive_l2_cache.o
ifeq ($(CONFIG_MMU),y)
obj-$(CONFIG_SMP) += tlbflush.o
diff --git a/arch/riscv/mm/cacheflush.c b/arch/riscv/mm/cacheflush.c
index 8f1900686640..8930ab7278e6 100644
--- a/arch/riscv/mm/cacheflush.c
+++ b/arch/riscv/mm/cacheflush.c
@@ -22,6 +22,7 @@ void flush_icache_all(void)
else
on_each_cpu(ipi_remote_fence_i, NULL, 1);
}
+EXPORT_SYMBOL(flush_icache_all);
/*
* Performs an icache flush for the given MM context. RISC-V has no direct
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 69f6678db7f3..965a8cf4829c 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -99,13 +99,13 @@ static void __init setup_initrd(void)
pr_info("initrd not found or empty");
goto disable;
}
- if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) {
+ if (__pa_symbol(initrd_end) > PFN_PHYS(max_low_pfn)) {
pr_err("initrd extends beyond end of memory");
goto disable;
}
size = initrd_end - initrd_start;
- memblock_reserve(__pa(initrd_start), size);
+ memblock_reserve(__pa_symbol(initrd_start), size);
initrd_below_start_ok = 1;
pr_info("Initial ramdisk at: 0x%p (%lu bytes)\n",
@@ -124,8 +124,8 @@ void __init setup_bootmem(void)
{
struct memblock_region *reg;
phys_addr_t mem_size = 0;
- phys_addr_t vmlinux_end = __pa(&_end);
- phys_addr_t vmlinux_start = __pa(&_start);
+ phys_addr_t vmlinux_end = __pa_symbol(&_end);
+ phys_addr_t vmlinux_start = __pa_symbol(&_start);
/* Find the memory region containing the kernel */
for_each_memblock(memory, reg) {
@@ -445,7 +445,7 @@ static void __init setup_vm_final(void)
/* Setup swapper PGD for fixmap */
create_pgd_mapping(swapper_pg_dir, FIXADDR_START,
- __pa(fixmap_pgd_next),
+ __pa_symbol(fixmap_pgd_next),
PGDIR_SIZE, PAGE_TABLE);
/* Map all memory banks */
@@ -474,7 +474,7 @@ static void __init setup_vm_final(void)
clear_fixmap(FIX_PMD);
/* Move to swapper page table */
- csr_write(CSR_SATP, PFN_DOWN(__pa(swapper_pg_dir)) | SATP_MODE);
+ csr_write(CSR_SATP, PFN_DOWN(__pa_symbol(swapper_pg_dir)) | SATP_MODE);
local_flush_tlb_all();
}
#else
diff --git a/arch/riscv/net/bpf_jit_comp.c b/arch/riscv/net/bpf_jit_comp.c
index 5451ef3845f2..483f4ad7f4dc 100644
--- a/arch/riscv/net/bpf_jit_comp.c
+++ b/arch/riscv/net/bpf_jit_comp.c
@@ -120,6 +120,11 @@ static bool seen_reg(int reg, struct rv_jit_context *ctx)
return false;
}
+static void mark_fp(struct rv_jit_context *ctx)
+{
+ __set_bit(RV_CTX_F_SEEN_S5, &ctx->flags);
+}
+
static void mark_call(struct rv_jit_context *ctx)
{
__set_bit(RV_CTX_F_SEEN_CALL, &ctx->flags);
@@ -456,6 +461,11 @@ static u32 rv_amoadd_d(u8 rd, u8 rs2, u8 rs1, u8 aq, u8 rl)
return rv_amo_insn(0, aq, rl, rs2, rs1, 3, rd, 0x2f);
}
+static u32 rv_auipc(u8 rd, u32 imm31_12)
+{
+ return rv_u_insn(imm31_12, rd, 0x17);
+}
+
static bool is_12b_int(s64 val)
{
return -(1 << 11) <= val && val < (1 << 11);
@@ -479,27 +489,7 @@ static bool is_32b_int(s64 val)
static int is_12b_check(int off, int insn)
{
if (!is_12b_int(off)) {
- pr_err("bpf-jit: insn=%d offset=%d not supported yet!\n",
- insn, (int)off);
- return -1;
- }
- return 0;
-}
-
-static int is_13b_check(int off, int insn)
-{
- if (!is_13b_int(off)) {
- pr_err("bpf-jit: insn=%d offset=%d not supported yet!\n",
- insn, (int)off);
- return -1;
- }
- return 0;
-}
-
-static int is_21b_check(int off, int insn)
-{
- if (!is_21b_int(off)) {
- pr_err("bpf-jit: insn=%d offset=%d not supported yet!\n",
+ pr_err("bpf-jit: insn=%d 12b < offset=%d not supported yet!\n",
insn, (int)off);
return -1;
}
@@ -545,10 +535,13 @@ static void emit_imm(u8 rd, s64 val, struct rv_jit_context *ctx)
emit(rv_addi(rd, rd, lower), ctx);
}
-static int rv_offset(int bpf_to, int bpf_from, struct rv_jit_context *ctx)
+static int rv_offset(int insn, int off, struct rv_jit_context *ctx)
{
- int from = ctx->offset[bpf_from] - 1, to = ctx->offset[bpf_to];
+ int from, to;
+ off++; /* BPF branch is from PC+1, RV is from PC */
+ from = (insn > 0) ? ctx->offset[insn - 1] : 0;
+ to = (insn + off > 0) ? ctx->offset[insn + off - 1] : 0;
return (to - from) << 2;
}
@@ -559,7 +552,7 @@ static int epilogue_offset(struct rv_jit_context *ctx)
return (to - from) << 2;
}
-static void __build_epilogue(u8 reg, struct rv_jit_context *ctx)
+static void __build_epilogue(bool is_tail_call, struct rv_jit_context *ctx)
{
int stack_adjust = ctx->stack_size, store_offset = stack_adjust - 8;
@@ -596,8 +589,114 @@ static void __build_epilogue(u8 reg, struct rv_jit_context *ctx)
emit(rv_addi(RV_REG_SP, RV_REG_SP, stack_adjust), ctx);
/* Set return value. */
- emit(rv_addi(RV_REG_A0, RV_REG_A5, 0), ctx);
- emit(rv_jalr(RV_REG_ZERO, reg, 0), ctx);
+ if (!is_tail_call)
+ emit(rv_addi(RV_REG_A0, RV_REG_A5, 0), ctx);
+ emit(rv_jalr(RV_REG_ZERO, is_tail_call ? RV_REG_T3 : RV_REG_RA,
+ is_tail_call ? 4 : 0), /* skip TCC init */
+ ctx);
+}
+
+/* return -1 or inverted cond */
+static int invert_bpf_cond(u8 cond)
+{
+ switch (cond) {
+ case BPF_JEQ:
+ return BPF_JNE;
+ case BPF_JGT:
+ return BPF_JLE;
+ case BPF_JLT:
+ return BPF_JGE;
+ case BPF_JGE:
+ return BPF_JLT;
+ case BPF_JLE:
+ return BPF_JGT;
+ case BPF_JNE:
+ return BPF_JEQ;
+ case BPF_JSGT:
+ return BPF_JSLE;
+ case BPF_JSLT:
+ return BPF_JSGE;
+ case BPF_JSGE:
+ return BPF_JSLT;
+ case BPF_JSLE:
+ return BPF_JSGT;
+ }
+ return -1;
+}
+
+static void emit_bcc(u8 cond, u8 rd, u8 rs, int rvoff,
+ struct rv_jit_context *ctx)
+{
+ switch (cond) {
+ case BPF_JEQ:
+ emit(rv_beq(rd, rs, rvoff >> 1), ctx);
+ return;
+ case BPF_JGT:
+ emit(rv_bltu(rs, rd, rvoff >> 1), ctx);
+ return;
+ case BPF_JLT:
+ emit(rv_bltu(rd, rs, rvoff >> 1), ctx);
+ return;
+ case BPF_JGE:
+ emit(rv_bgeu(rd, rs, rvoff >> 1), ctx);
+ return;
+ case BPF_JLE:
+ emit(rv_bgeu(rs, rd, rvoff >> 1), ctx);
+ return;
+ case BPF_JNE:
+ emit(rv_bne(rd, rs, rvoff >> 1), ctx);
+ return;
+ case BPF_JSGT:
+ emit(rv_blt(rs, rd, rvoff >> 1), ctx);
+ return;
+ case BPF_JSLT:
+ emit(rv_blt(rd, rs, rvoff >> 1), ctx);
+ return;
+ case BPF_JSGE:
+ emit(rv_bge(rd, rs, rvoff >> 1), ctx);
+ return;
+ case BPF_JSLE:
+ emit(rv_bge(rs, rd, rvoff >> 1), ctx);
+ }
+}
+
+static void emit_branch(u8 cond, u8 rd, u8 rs, int rvoff,
+ struct rv_jit_context *ctx)
+{
+ s64 upper, lower;
+
+ if (is_13b_int(rvoff)) {
+ emit_bcc(cond, rd, rs, rvoff, ctx);
+ return;
+ }
+
+ /* Adjust for jal */
+ rvoff -= 4;
+
+ /* Transform, e.g.:
+ * bne rd,rs,foo
+ * to
+ * beq rd,rs,<.L1>
+ * (auipc foo)
+ * jal(r) foo
+ * .L1
+ */
+ cond = invert_bpf_cond(cond);
+ if (is_21b_int(rvoff)) {
+ emit_bcc(cond, rd, rs, 8, ctx);
+ emit(rv_jal(RV_REG_ZERO, rvoff >> 1), ctx);
+ return;
+ }
+
+ /* 32b No need for an additional rvoff adjustment, since we
+ * get that from the auipc at PC', where PC = PC' + 4.
+ */
+ upper = (rvoff + (1 << 11)) >> 12;
+ lower = rvoff & 0xfff;
+
+ emit_bcc(cond, rd, rs, 12, ctx);
+ emit(rv_auipc(RV_REG_T1, upper), ctx);
+ emit(rv_jalr(RV_REG_ZERO, RV_REG_T1, lower), ctx);
}
static void emit_zext_32(u8 reg, struct rv_jit_context *ctx)
@@ -627,18 +726,14 @@ static int emit_bpf_tail_call(int insn, struct rv_jit_context *ctx)
return -1;
emit(rv_lwu(RV_REG_T1, off, RV_REG_A1), ctx);
off = (tc_ninsn - (ctx->ninsns - start_insn)) << 2;
- if (is_13b_check(off, insn))
- return -1;
- emit(rv_bgeu(RV_REG_A2, RV_REG_T1, off >> 1), ctx);
+ emit_branch(BPF_JGE, RV_REG_A2, RV_REG_T1, off, ctx);
- /* if (--TCC < 0)
+ /* if (TCC-- < 0)
* goto out;
*/
emit(rv_addi(RV_REG_T1, tcc, -1), ctx);
off = (tc_ninsn - (ctx->ninsns - start_insn)) << 2;
- if (is_13b_check(off, insn))
- return -1;
- emit(rv_blt(RV_REG_T1, RV_REG_ZERO, off >> 1), ctx);
+ emit_branch(BPF_JSLT, tcc, RV_REG_ZERO, off, ctx);
/* prog = array->ptrs[index];
* if (!prog)
@@ -651,18 +746,15 @@ static int emit_bpf_tail_call(int insn, struct rv_jit_context *ctx)
return -1;
emit(rv_ld(RV_REG_T2, off, RV_REG_T2), ctx);
off = (tc_ninsn - (ctx->ninsns - start_insn)) << 2;
- if (is_13b_check(off, insn))
- return -1;
- emit(rv_beq(RV_REG_T2, RV_REG_ZERO, off >> 1), ctx);
+ emit_branch(BPF_JEQ, RV_REG_T2, RV_REG_ZERO, off, ctx);
/* goto *(prog->bpf_func + 4); */
off = offsetof(struct bpf_prog, bpf_func);
if (is_12b_check(off, insn))
return -1;
emit(rv_ld(RV_REG_T3, off, RV_REG_T2), ctx);
- emit(rv_addi(RV_REG_T3, RV_REG_T3, 4), ctx);
emit(rv_addi(RV_REG_TCC, RV_REG_T1, 0), ctx);
- __build_epilogue(RV_REG_T3, ctx);
+ __build_epilogue(true, ctx);
return 0;
}
@@ -687,13 +779,6 @@ static void init_regs(u8 *rd, u8 *rs, const struct bpf_insn *insn,
*rs = bpf_to_rv_reg(insn->src_reg, ctx);
}
-static int rv_offset_check(int *rvoff, s16 off, int insn,
- struct rv_jit_context *ctx)
-{
- *rvoff = rv_offset(insn + off, insn, ctx);
- return is_13b_check(*rvoff, insn);
-}
-
static void emit_zext_32_rd_rs(u8 *rd, u8 *rs, struct rv_jit_context *ctx)
{
emit(rv_addi(RV_REG_T2, *rd, 0), ctx);
@@ -726,13 +811,57 @@ static void emit_sext_32_rd(u8 *rd, struct rv_jit_context *ctx)
*rd = RV_REG_T2;
}
+static void emit_jump_and_link(u8 rd, s64 rvoff, bool force_jalr,
+ struct rv_jit_context *ctx)
+{
+ s64 upper, lower;
+
+ if (rvoff && is_21b_int(rvoff) && !force_jalr) {
+ emit(rv_jal(rd, rvoff >> 1), ctx);
+ return;
+ }
+
+ upper = (rvoff + (1 << 11)) >> 12;
+ lower = rvoff & 0xfff;
+ emit(rv_auipc(RV_REG_T1, upper), ctx);
+ emit(rv_jalr(rd, RV_REG_T1, lower), ctx);
+}
+
+static bool is_signed_bpf_cond(u8 cond)
+{
+ return cond == BPF_JSGT || cond == BPF_JSLT ||
+ cond == BPF_JSGE || cond == BPF_JSLE;
+}
+
+static int emit_call(bool fixed, u64 addr, struct rv_jit_context *ctx)
+{
+ s64 off = 0;
+ u64 ip;
+ u8 rd;
+
+ if (addr && ctx->insns) {
+ ip = (u64)(long)(ctx->insns + ctx->ninsns);
+ off = addr - ip;
+ if (!is_32b_int(off)) {
+ pr_err("bpf-jit: target call addr %pK is out of range\n",
+ (void *)addr);
+ return -ERANGE;
+ }
+ }
+
+ emit_jump_and_link(RV_REG_RA, off, !fixed, ctx);
+ rd = bpf_to_rv_reg(BPF_REG_0, ctx);
+ emit(rv_addi(rd, RV_REG_A0, 0), ctx);
+ return 0;
+}
+
static int emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx,
bool extra_pass)
{
bool is64 = BPF_CLASS(insn->code) == BPF_ALU64 ||
BPF_CLASS(insn->code) == BPF_JMP;
+ int s, e, rvoff, i = insn - ctx->prog->insnsi;
struct bpf_prog_aux *aux = ctx->prog->aux;
- int rvoff, i = insn - ctx->prog->insnsi;
u8 rd = -1, rs = -1, code = insn->code;
s16 off = insn->off;
s32 imm = insn->imm;
@@ -1000,214 +1129,110 @@ out_be:
/* JUMP off */
case BPF_JMP | BPF_JA:
- rvoff = rv_offset(i + off, i, ctx);
- if (!is_21b_int(rvoff)) {
- pr_err("bpf-jit: insn=%d offset=%d not supported yet!\n",
- i, rvoff);
- return -1;
- }
-
- emit(rv_jal(RV_REG_ZERO, rvoff >> 1), ctx);
+ rvoff = rv_offset(i, off, ctx);
+ emit_jump_and_link(RV_REG_ZERO, rvoff, false, ctx);
break;
/* IF (dst COND src) JUMP off */
case BPF_JMP | BPF_JEQ | BPF_X:
case BPF_JMP32 | BPF_JEQ | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_zext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_beq(rd, rs, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JGT | BPF_X:
case BPF_JMP32 | BPF_JGT | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_zext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_bltu(rs, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JLT | BPF_X:
case BPF_JMP32 | BPF_JLT | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_zext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_bltu(rd, rs, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JGE | BPF_X:
case BPF_JMP32 | BPF_JGE | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_zext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_bgeu(rd, rs, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JLE | BPF_X:
case BPF_JMP32 | BPF_JLE | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_zext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_bgeu(rs, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JNE | BPF_X:
case BPF_JMP32 | BPF_JNE | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_zext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_bne(rd, rs, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSGT | BPF_X:
case BPF_JMP32 | BPF_JSGT | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_sext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_blt(rs, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSLT | BPF_X:
case BPF_JMP32 | BPF_JSLT | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_sext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_blt(rd, rs, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSGE | BPF_X:
case BPF_JMP32 | BPF_JSGE | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_sext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_bge(rd, rs, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSLE | BPF_X:
case BPF_JMP32 | BPF_JSLE | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_sext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_bge(rs, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSET | BPF_X:
case BPF_JMP32 | BPF_JSET | BPF_X:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- if (!is64)
- emit_zext_32_rd_rs(&rd, &rs, ctx);
- emit(rv_and(RV_REG_T1, rd, rs), ctx);
- emit(rv_bne(RV_REG_T1, RV_REG_ZERO, rvoff >> 1), ctx);
+ rvoff = rv_offset(i, off, ctx);
+ if (!is64) {
+ s = ctx->ninsns;
+ if (is_signed_bpf_cond(BPF_OP(code)))
+ emit_sext_32_rd_rs(&rd, &rs, ctx);
+ else
+ emit_zext_32_rd_rs(&rd, &rs, ctx);
+ e = ctx->ninsns;
+
+ /* Adjust for extra insns */
+ rvoff -= (e - s) << 2;
+ }
+
+ if (BPF_OP(code) == BPF_JSET) {
+ /* Adjust for and */
+ rvoff -= 4;
+ emit(rv_and(RV_REG_T1, rd, rs), ctx);
+ emit_branch(BPF_JNE, RV_REG_T1, RV_REG_ZERO, rvoff,
+ ctx);
+ } else {
+ emit_branch(BPF_OP(code), rd, rs, rvoff, ctx);
+ }
break;
/* IF (dst COND imm) JUMP off */
case BPF_JMP | BPF_JEQ | BPF_K:
case BPF_JMP32 | BPF_JEQ | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_zext_32_rd_t1(&rd, ctx);
- emit(rv_beq(rd, RV_REG_T1, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JGT | BPF_K:
case BPF_JMP32 | BPF_JGT | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_zext_32_rd_t1(&rd, ctx);
- emit(rv_bltu(RV_REG_T1, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JLT | BPF_K:
case BPF_JMP32 | BPF_JLT | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_zext_32_rd_t1(&rd, ctx);
- emit(rv_bltu(rd, RV_REG_T1, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JGE | BPF_K:
case BPF_JMP32 | BPF_JGE | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_zext_32_rd_t1(&rd, ctx);
- emit(rv_bgeu(rd, RV_REG_T1, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JLE | BPF_K:
case BPF_JMP32 | BPF_JLE | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_zext_32_rd_t1(&rd, ctx);
- emit(rv_bgeu(RV_REG_T1, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JNE | BPF_K:
case BPF_JMP32 | BPF_JNE | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_zext_32_rd_t1(&rd, ctx);
- emit(rv_bne(rd, RV_REG_T1, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSGT | BPF_K:
case BPF_JMP32 | BPF_JSGT | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_sext_32_rd(&rd, ctx);
- emit(rv_blt(RV_REG_T1, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSLT | BPF_K:
case BPF_JMP32 | BPF_JSLT | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_sext_32_rd(&rd, ctx);
- emit(rv_blt(rd, RV_REG_T1, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSGE | BPF_K:
case BPF_JMP32 | BPF_JSGE | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_sext_32_rd(&rd, ctx);
- emit(rv_bge(rd, RV_REG_T1, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSLE | BPF_K:
case BPF_JMP32 | BPF_JSLE | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
- emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_sext_32_rd(&rd, ctx);
- emit(rv_bge(RV_REG_T1, rd, rvoff >> 1), ctx);
- break;
case BPF_JMP | BPF_JSET | BPF_K:
case BPF_JMP32 | BPF_JSET | BPF_K:
- if (rv_offset_check(&rvoff, off, i, ctx))
- return -1;
+ rvoff = rv_offset(i, off, ctx);
+ s = ctx->ninsns;
emit_imm(RV_REG_T1, imm, ctx);
- if (!is64)
- emit_zext_32_rd_t1(&rd, ctx);
- emit(rv_and(RV_REG_T1, rd, RV_REG_T1), ctx);
- emit(rv_bne(RV_REG_T1, RV_REG_ZERO, rvoff >> 1), ctx);
+ if (!is64) {
+ if (is_signed_bpf_cond(BPF_OP(code)))
+ emit_sext_32_rd(&rd, ctx);
+ else
+ emit_zext_32_rd_t1(&rd, ctx);
+ }
+ e = ctx->ninsns;
+
+ /* Adjust for extra insns */
+ rvoff -= (e - s) << 2;
+
+ if (BPF_OP(code) == BPF_JSET) {
+ /* Adjust for and */
+ rvoff -= 4;
+ emit(rv_and(RV_REG_T1, rd, RV_REG_T1), ctx);
+ emit_branch(BPF_JNE, RV_REG_T1, RV_REG_ZERO, rvoff,
+ ctx);
+ } else {
+ emit_branch(BPF_OP(code), rd, RV_REG_T1, rvoff, ctx);
+ }
break;
/* function call */
case BPF_JMP | BPF_CALL:
{
bool fixed;
- int i, ret;
+ int ret;
u64 addr;
mark_call(ctx);
@@ -1215,20 +1240,9 @@ out_be:
&fixed);
if (ret < 0)
return ret;
- if (fixed) {
- emit_imm(RV_REG_T1, addr, ctx);
- } else {
- i = ctx->ninsns;
- emit_imm(RV_REG_T1, addr, ctx);
- for (i = ctx->ninsns - i; i < 8; i++) {
- /* nop */
- emit(rv_addi(RV_REG_ZERO, RV_REG_ZERO, 0),
- ctx);
- }
- }
- emit(rv_jalr(RV_REG_RA, RV_REG_T1, 0), ctx);
- rd = bpf_to_rv_reg(BPF_REG_0, ctx);
- emit(rv_addi(rd, RV_REG_A0, 0), ctx);
+ ret = emit_call(fixed, addr, ctx);
+ if (ret)
+ return ret;
break;
}
/* tail call */
@@ -1243,9 +1257,7 @@ out_be:
break;
rvoff = epilogue_offset(ctx);
- if (is_21b_check(rvoff, i))
- return -1;
- emit(rv_jal(RV_REG_ZERO, rvoff >> 1), ctx);
+ emit_jump_and_link(RV_REG_ZERO, rvoff, false, ctx);
break;
/* dst = imm64 */
@@ -1426,6 +1438,10 @@ static void build_prologue(struct rv_jit_context *ctx)
{
int stack_adjust = 0, store_offset, bpf_stack_adjust;
+ bpf_stack_adjust = round_up(ctx->prog->aux->stack_depth, 16);
+ if (bpf_stack_adjust)
+ mark_fp(ctx);
+
if (seen_reg(RV_REG_RA, ctx))
stack_adjust += 8;
stack_adjust += 8; /* RV_REG_FP */
@@ -1443,7 +1459,6 @@ static void build_prologue(struct rv_jit_context *ctx)
stack_adjust += 8;
stack_adjust = round_up(stack_adjust, 16);
- bpf_stack_adjust = round_up(ctx->prog->aux->stack_depth, 16);
stack_adjust += bpf_stack_adjust;
store_offset = stack_adjust - 8;
@@ -1502,10 +1517,10 @@ static void build_prologue(struct rv_jit_context *ctx)
static void build_epilogue(struct rv_jit_context *ctx)
{
- __build_epilogue(RV_REG_RA, ctx);
+ __build_epilogue(false, ctx);
}
-static int build_body(struct rv_jit_context *ctx, bool extra_pass)
+static int build_body(struct rv_jit_context *ctx, bool extra_pass, int *offset)
{
const struct bpf_prog *prog = ctx->prog;
int i;
@@ -1517,12 +1532,12 @@ static int build_body(struct rv_jit_context *ctx, bool extra_pass)
ret = emit_insn(insn, ctx, extra_pass);
if (ret > 0) {
i++;
- if (ctx->insns == NULL)
- ctx->offset[i] = ctx->ninsns;
+ if (offset)
+ offset[i] = ctx->ninsns;
continue;
}
- if (ctx->insns == NULL)
- ctx->offset[i] = ctx->ninsns;
+ if (offset)
+ offset[i] = ctx->ninsns;
if (ret)
return ret;
}
@@ -1548,9 +1563,10 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
{
bool tmp_blinded = false, extra_pass = false;
struct bpf_prog *tmp, *orig_prog = prog;
+ int pass = 0, prev_ninsns = 0, i;
struct rv_jit_data *jit_data;
+ unsigned int image_size = 0;
struct rv_jit_context *ctx;
- unsigned int image_size;
if (!prog->jit_requested)
return orig_prog;
@@ -1587,33 +1603,59 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
prog = orig_prog;
goto out_offset;
}
+ for (i = 0; i < prog->len; i++) {
+ prev_ninsns += 32;
+ ctx->offset[i] = prev_ninsns;
+ }
- /* First pass generates the ctx->offset, but does not emit an image. */
- if (build_body(ctx, extra_pass)) {
- prog = orig_prog;
- goto out_offset;
+ for (i = 0; i < 16; i++) {
+ pass++;
+ ctx->ninsns = 0;
+ if (build_body(ctx, extra_pass, ctx->offset)) {
+ prog = orig_prog;
+ goto out_offset;
+ }
+ build_prologue(ctx);
+ ctx->epilogue_offset = ctx->ninsns;
+ build_epilogue(ctx);
+
+ if (ctx->ninsns == prev_ninsns) {
+ if (jit_data->header)
+ break;
+
+ image_size = sizeof(u32) * ctx->ninsns;
+ jit_data->header =
+ bpf_jit_binary_alloc(image_size,
+ &jit_data->image,
+ sizeof(u32),
+ bpf_fill_ill_insns);
+ if (!jit_data->header) {
+ prog = orig_prog;
+ goto out_offset;
+ }
+
+ ctx->insns = (u32 *)jit_data->image;
+ /* Now, when the image is allocated, the image
+ * can potentially shrink more (auipc/jalr ->
+ * jal).
+ */
+ }
+ prev_ninsns = ctx->ninsns;
}
- build_prologue(ctx);
- ctx->epilogue_offset = ctx->ninsns;
- build_epilogue(ctx);
- /* Allocate image, now that we know the size. */
- image_size = sizeof(u32) * ctx->ninsns;
- jit_data->header = bpf_jit_binary_alloc(image_size, &jit_data->image,
- sizeof(u32),
- bpf_fill_ill_insns);
- if (!jit_data->header) {
+ if (i == 16) {
+ pr_err("bpf-jit: image did not converge in <%d passes!\n", i);
+ bpf_jit_binary_free(jit_data->header);
prog = orig_prog;
goto out_offset;
}
- /* Second, real pass, that acutally emits the image. */
- ctx->insns = (u32 *)jit_data->image;
skip_init_ctx:
+ pass++;
ctx->ninsns = 0;
build_prologue(ctx);
- if (build_body(ctx, extra_pass)) {
+ if (build_body(ctx, extra_pass, NULL)) {
bpf_jit_binary_free(jit_data->header);
prog = orig_prog;
goto out_offset;
@@ -1621,7 +1663,7 @@ skip_init_ctx:
build_epilogue(ctx);
if (bpf_jit_enable > 1)
- bpf_jit_dump(prog->len, image_size, 2, ctx->insns);
+ bpf_jit_dump(prog->len, image_size, pass, ctx->insns);
prog->bpf_func = (void *)ctx->insns;
prog->jited = 1;
@@ -1641,3 +1683,16 @@ out:
tmp : orig_prog);
return prog;
}
+
+void *bpf_jit_alloc_exec(unsigned long size)
+{
+ return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,
+ BPF_JIT_REGION_END, GFP_KERNEL,
+ PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+ __builtin_return_address(0));
+}
+
+void bpf_jit_free_exec(void *addr)
+{
+ return vfree(addr);
+}
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index bc88841d335d..287714d51b47 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -30,7 +30,7 @@ config GENERIC_BUG_RELATIVE_POINTERS
def_bool y
config GENERIC_LOCKBREAK
- def_bool y if PREEMPT
+ def_bool y if PREEMPTTION
config PGSTE
def_bool y if KVM
@@ -110,7 +110,7 @@ config S390
select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_WANTS_DYNAMIC_TASK_STRUCT
select ARCH_WANT_IPC_PARSE_VERSION
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS2
select DYNAMIC_FTRACE if FUNCTION_TRACER
select GENERIC_CLOCKEVENTS
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index ba8556bb0fb1..e0e3a465bbfd 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -69,7 +69,7 @@ cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include
#
cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls
-ifeq ($(call cc-option-yn,-mpacked-stack),y)
+ifeq ($(call cc-option-yn,-mpacked-stack -mbackchain -msoft-float),y)
cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK
aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK
endif
diff --git a/arch/s390/boot/head.S b/arch/s390/boot/head.S
index 4b86a8d3c121..dae10961d072 100644
--- a/arch/s390/boot/head.S
+++ b/arch/s390/boot/head.S
@@ -329,7 +329,7 @@ ENTRY(startup_kdump)
.quad .Lduct # cr5: primary-aste origin
.quad 0 # cr6: I/O interrupts
.quad 0 # cr7: secondary space segment table
- .quad 0 # cr8: access registers translation
+ .quad 0x0000000000008000 # cr8: access registers translation
.quad 0 # cr9: tracing off
.quad 0 # cr10: tracing off
.quad 0 # cr11: tracing off
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index ead0b2c9881d..1c23d84a9097 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -72,19 +72,12 @@ static int setkey_fallback_cip(struct crypto_tfm *tfm, const u8 *in_key,
unsigned int key_len)
{
struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
- int ret;
sctx->fallback.cip->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
sctx->fallback.cip->base.crt_flags |= (tfm->crt_flags &
CRYPTO_TFM_REQ_MASK);
- ret = crypto_cipher_setkey(sctx->fallback.cip, in_key, key_len);
- if (ret) {
- tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
- tfm->crt_flags |= (sctx->fallback.cip->base.crt_flags &
- CRYPTO_TFM_RES_MASK);
- }
- return ret;
+ return crypto_cipher_setkey(sctx->fallback.cip, in_key, key_len);
}
static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
@@ -182,18 +175,13 @@ static int setkey_fallback_skcipher(struct crypto_skcipher *tfm, const u8 *key,
unsigned int len)
{
struct s390_aes_ctx *sctx = crypto_skcipher_ctx(tfm);
- int ret;
crypto_skcipher_clear_flags(sctx->fallback.skcipher,
CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(sctx->fallback.skcipher,
crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
- ret = crypto_skcipher_setkey(sctx->fallback.skcipher, key, len);
- crypto_skcipher_set_flags(tfm,
- crypto_skcipher_get_flags(sctx->fallback.skcipher) &
- CRYPTO_TFM_RES_MASK);
- return ret;
+ return crypto_skcipher_setkey(sctx->fallback.skcipher, key, len);
}
static int fallback_skcipher_crypt(struct s390_aes_ctx *sctx,
@@ -389,17 +377,12 @@ static int xts_fallback_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int len)
{
struct s390_xts_ctx *xts_ctx = crypto_skcipher_ctx(tfm);
- int ret;
crypto_skcipher_clear_flags(xts_ctx->fallback, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(xts_ctx->fallback,
crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
- ret = crypto_skcipher_setkey(xts_ctx->fallback, key, len);
- crypto_skcipher_set_flags(tfm,
- crypto_skcipher_get_flags(xts_ctx->fallback) &
- CRYPTO_TFM_RES_MASK);
- return ret;
+ return crypto_skcipher_setkey(xts_ctx->fallback, key, len);
}
static int xts_aes_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
@@ -414,10 +397,8 @@ static int xts_aes_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
return err;
/* In fips mode only 128 bit or 256 bit keys are valid */
- if (fips_enabled && key_len != 32 && key_len != 64) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (fips_enabled && key_len != 32 && key_len != 64)
return -EINVAL;
- }
/* Pick the correct function code based on the key length */
fc = (key_len == 32) ? CPACF_KM_XTS_128 :
diff --git a/arch/s390/crypto/crc32-vx.c b/arch/s390/crypto/crc32-vx.c
index 423ee05887e6..fafecad20752 100644
--- a/arch/s390/crypto/crc32-vx.c
+++ b/arch/s390/crypto/crc32-vx.c
@@ -111,10 +111,8 @@ static int crc32_vx_setkey(struct crypto_shash *tfm, const u8 *newkey,
{
struct crc_ctx *mctx = crypto_shash_ctx(tfm);
- if (newkeylen != sizeof(mctx->key)) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (newkeylen != sizeof(mctx->key))
return -EINVAL;
- }
mctx->key = le32_to_cpu(*(__le32 *)newkey);
return 0;
}
@@ -124,10 +122,8 @@ static int crc32be_vx_setkey(struct crypto_shash *tfm, const u8 *newkey,
{
struct crc_ctx *mctx = crypto_shash_ctx(tfm);
- if (newkeylen != sizeof(mctx->key)) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (newkeylen != sizeof(mctx->key))
return -EINVAL;
- }
mctx->key = be32_to_cpu(*(__be32 *)newkey);
return 0;
}
diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c
index a3e7400e031c..6b07a2f1ce8a 100644
--- a/arch/s390/crypto/ghash_s390.c
+++ b/arch/s390/crypto/ghash_s390.c
@@ -43,10 +43,8 @@ static int ghash_setkey(struct crypto_shash *tfm,
{
struct ghash_ctx *ctx = crypto_shash_ctx(tfm);
- if (keylen != GHASH_BLOCK_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != GHASH_BLOCK_SIZE)
return -EINVAL;
- }
memcpy(ctx->key, key, GHASH_BLOCK_SIZE);
diff --git a/arch/s390/crypto/paes_s390.c b/arch/s390/crypto/paes_s390.c
index c7119c617b6e..e2a85783f804 100644
--- a/arch/s390/crypto/paes_s390.c
+++ b/arch/s390/crypto/paes_s390.c
@@ -151,11 +151,7 @@ static int ecb_paes_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
if (rc)
return rc;
- if (__paes_set_key(ctx)) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
- return 0;
+ return __paes_set_key(ctx);
}
static int ecb_paes_crypt(struct skcipher_request *req, unsigned long modifier)
@@ -254,11 +250,7 @@ static int cbc_paes_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
if (rc)
return rc;
- if (__cbc_paes_set_key(ctx)) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
- return 0;
+ return __cbc_paes_set_key(ctx);
}
static int cbc_paes_crypt(struct skcipher_request *req, unsigned long modifier)
@@ -386,10 +378,9 @@ static int xts_paes_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
if (rc)
return rc;
- if (__xts_paes_set_key(ctx)) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
+ rc = __xts_paes_set_key(ctx);
+ if (rc)
+ return rc;
/*
* xts_check_key verifies the key length is not odd and makes
@@ -526,11 +517,7 @@ static int ctr_paes_set_key(struct crypto_skcipher *tfm, const u8 *in_key,
if (rc)
return rc;
- if (__ctr_paes_set_key(ctx)) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
- return 0;
+ return __ctr_paes_set_key(ctx);
}
static unsigned int __ctrblk_init(u8 *ctrptr, u8 *iv, unsigned int nbytes)
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index a2b11ac00f60..7725f8006fdf 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -10,15 +10,14 @@
#define __EMIT_BUG(x) do { \
asm_inline volatile( \
- "0: j 0b+2\n" \
- "1:\n" \
+ "0: mc 0,0\n" \
".section .rodata.str,\"aMS\",@progbits,1\n" \
- "2: .asciz \""__FILE__"\"\n" \
+ "1: .asciz \""__FILE__"\"\n" \
".previous\n" \
".section __bug_table,\"awM\",@progbits,%2\n" \
- "3: .long 1b-3b,2b-3b\n" \
+ "2: .long 0b-2b,1b-2b\n" \
" .short %0,%1\n" \
- " .org 3b+%2\n" \
+ " .org 2b+%2\n" \
".previous\n" \
: : "i" (__LINE__), \
"i" (x), \
@@ -29,12 +28,11 @@
#define __EMIT_BUG(x) do { \
asm_inline volatile( \
- "0: j 0b+2\n" \
- "1:\n" \
+ "0: mc 0,0\n" \
".section __bug_table,\"awM\",@progbits,%1\n" \
- "2: .long 1b-2b\n" \
+ "1: .long 0b-1b\n" \
" .short %0\n" \
- " .org 2b+%1\n" \
+ " .org 1b+%1\n" \
".previous\n" \
: : "i" (x), \
"i" (sizeof(struct bug_entry))); \
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 63b46e30b2c3..9547cd5d6cdc 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -177,11 +177,7 @@ static inline void __user *compat_ptr(compat_uptr_t uptr)
{
return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
- return (u32)(unsigned long)uptr;
-}
+#define compat_ptr(uptr) compat_ptr(uptr)
#ifdef CONFIG_COMPAT
diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h
index 39f747d63758..dcb1bba4f406 100644
--- a/arch/s390/include/asm/jump_label.h
+++ b/arch/s390/include/asm/jump_label.h
@@ -10,7 +10,9 @@
#define JUMP_LABEL_NOP_SIZE 6
#define JUMP_LABEL_NOP_OFFSET 2
-#if __GNUC__ < 9
+#ifdef CONFIG_CC_IS_CLANG
+#define JUMP_LABEL_STATIC_KEY_CONSTRAINT "i"
+#elif __GNUC__ < 9
#define JUMP_LABEL_STATIC_KEY_CONSTRAINT "X"
#else
#define JUMP_LABEL_STATIC_KEY_CONSTRAINT "jdd"
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 3a06c264ea53..b05187ce5dbd 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -180,7 +180,7 @@ void zpci_remove_reserved_devices(void);
/* CLP */
int clp_scan_pci_devices(void);
int clp_rescan_pci_devices(void);
-int clp_rescan_pci_devices_simple(void);
+int clp_rescan_pci_devices_simple(u32 *fid);
int clp_add_pci_device(u32, u32, int);
int clp_enable_fh(struct zpci_dev *, u8);
int clp_disable_fh(struct zpci_dev *);
diff --git a/arch/s390/include/asm/preempt.h b/arch/s390/include/asm/preempt.h
index b5ea9e14c017..6ede29907fbf 100644
--- a/arch/s390/include/asm/preempt.h
+++ b/arch/s390/include/asm/preempt.h
@@ -130,11 +130,11 @@ static inline bool should_resched(int preempt_offset)
#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
extern asmlinkage void preempt_schedule(void);
#define __preempt_schedule() preempt_schedule()
extern asmlinkage void preempt_schedule_notrace(void);
#define __preempt_schedule_notrace() preempt_schedule_notrace()
-#endif /* CONFIG_PREEMPT */
+#endif /* CONFIG_PREEMPTION */
#endif /* __ASM_PREEMPT_H */
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 6da8885251d6..670f14a228e5 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -194,9 +194,9 @@ static inline unsigned long long get_tod_clock_monotonic(void)
{
unsigned long long tod;
- preempt_disable();
+ preempt_disable_notrace();
tod = get_tod_clock() - *(unsigned long long *) &tod_clock_base[1];
- preempt_enable();
+ preempt_enable_notrace();
return tod;
}
diff --git a/arch/s390/include/asm/vmalloc.h b/arch/s390/include/asm/vmalloc.h
new file mode 100644
index 000000000000..3ba3a6bdca25
--- /dev/null
+++ b/arch/s390/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_S390_VMALLOC_H
+#define _ASM_S390_VMALLOC_H
+
+#endif /* _ASM_S390_VMALLOC_H */
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index d306fe04489a..2c122d8bab93 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -195,6 +195,8 @@ void die(struct pt_regs *regs, const char *str)
regs->int_code >> 17, ++die_counter);
#ifdef CONFIG_PREEMPT
pr_cont("PREEMPT ");
+#elif defined(CONFIG_PREEMPT_RT)
+ pr_cont("PREEMPT_RT ");
#endif
pr_cont("SMP ");
if (debug_pagealloc_enabled())
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 270d1d145761..9205add8481d 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -790,7 +790,7 @@ ENTRY(io_int_handler)
.Lio_work:
tm __PT_PSW+1(%r11),0x01 # returning to user ?
jo .Lio_work_user # yes -> do resched & signal
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
# check for preemptive scheduling
icm %r0,15,__LC_PREEMPT_COUNT
jnz .Lio_restore # preemption is disabled
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index b2956d49b6ad..1d3927e01a5f 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -45,6 +45,7 @@ void specification_exception(struct pt_regs *regs);
void transaction_exception(struct pt_regs *regs);
void translation_exception(struct pt_regs *regs);
void vector_exception(struct pt_regs *regs);
+void monitor_event_exception(struct pt_regs *regs);
void do_per_trap(struct pt_regs *regs);
void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str);
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index 9e1660a6b9db..f942341429b1 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.S
@@ -26,6 +26,12 @@ ENDPROC(ftrace_stub)
#define STACK_PTREGS (STACK_FRAME_OVERHEAD)
#define STACK_PTREGS_GPRS (STACK_PTREGS + __PT_GPRS)
#define STACK_PTREGS_PSW (STACK_PTREGS + __PT_PSW)
+#ifdef __PACK_STACK
+/* allocate just enough for r14, r15 and backchain */
+#define TRACED_FUNC_FRAME_SIZE 24
+#else
+#define TRACED_FUNC_FRAME_SIZE STACK_FRAME_OVERHEAD
+#endif
ENTRY(_mcount)
BR_EX %r14
@@ -35,13 +41,21 @@ EXPORT_SYMBOL(_mcount)
ENTRY(ftrace_caller)
.globl ftrace_regs_caller
.set ftrace_regs_caller,ftrace_caller
+ stg %r14,(__SF_GPRS+8*8)(%r15) # save traced function caller
lgr %r1,%r15
#if !(defined(CC_USING_HOTPATCH) || defined(CC_USING_NOP_MCOUNT))
aghi %r0,MCOUNT_RETURN_FIXUP
#endif
- aghi %r15,-STACK_FRAME_SIZE
+ # allocate stack frame for ftrace_caller to contain traced function
+ aghi %r15,-TRACED_FUNC_FRAME_SIZE
stg %r1,__SF_BACKCHAIN(%r15)
+ stg %r0,(__SF_GPRS+8*8)(%r15)
+ stg %r15,(__SF_GPRS+9*8)(%r15)
+ # allocate pt_regs and stack frame for ftrace_trace_function
+ aghi %r15,-STACK_FRAME_SIZE
stg %r1,(STACK_PTREGS_GPRS+15*8)(%r15)
+ aghi %r1,-TRACED_FUNC_FRAME_SIZE
+ stg %r1,__SF_BACKCHAIN(%r15)
stg %r0,(STACK_PTREGS_PSW+8)(%r15)
stmg %r2,%r14,(STACK_PTREGS_GPRS+2*8)(%r15)
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 77d93c534284..b095b1c78987 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1383,7 +1383,8 @@ static void aux_output_end(struct perf_output_handle *handle)
te = aux_sdb_trailer(aux, aux->alert_mark);
te->flags &= ~SDB_TE_ALERT_REQ_MASK;
- debug_sprintf_event(sfdbg, 6, "%s: collect %#lx SDBs\n", __func__, i);
+ debug_sprintf_event(sfdbg, 6, "%s: SDBs %ld range %ld head %ld\n",
+ __func__, i, range_scan, aux->head);
}
/*
@@ -1416,13 +1417,17 @@ static int aux_output_begin(struct perf_output_handle *handle,
* SDBs between aux->head and aux->empty_mark are already ready
* for new data. range_scan is num of SDBs not within them.
*/
+ debug_sprintf_event(sfdbg, 6,
+ "%s: range %ld head %ld alert %ld empty %ld\n",
+ __func__, range, aux->head, aux->alert_mark,
+ aux->empty_mark);
if (range > AUX_SDB_NUM_EMPTY(aux)) {
range_scan = range - AUX_SDB_NUM_EMPTY(aux);
idx = aux->empty_mark + 1;
for (i = 0; i < range_scan; i++, idx++) {
te = aux_sdb_trailer(aux, idx);
- te->flags = te->flags & ~SDB_TE_BUFFER_FULL_MASK;
- te->flags = te->flags & ~SDB_TE_ALERT_REQ_MASK;
+ te->flags &= ~(SDB_TE_BUFFER_FULL_MASK |
+ SDB_TE_ALERT_REQ_MASK);
te->overflow = 0;
}
/* Save the position of empty SDBs */
@@ -1441,15 +1446,11 @@ static int aux_output_begin(struct perf_output_handle *handle,
cpuhw->lsctl.tear = base + offset * sizeof(unsigned long);
cpuhw->lsctl.dear = aux->sdb_index[head];
- debug_sprintf_event(sfdbg, 6, "%s: "
- "head->alert_mark->empty_mark (num_alert, range)"
- "[%#lx -> %#lx -> %#lx] (%#lx, %#lx) "
- "tear index %#lx, tear %#lx dear %#lx\n", __func__,
+ debug_sprintf_event(sfdbg, 6, "%s: head %ld alert %ld empty %ld "
+ "index %ld tear %#lx dear %#lx\n", __func__,
aux->head, aux->alert_mark, aux->empty_mark,
- AUX_SDB_NUM_ALERT(aux), range,
head / CPUM_SF_SDB_PER_TABLE,
- cpuhw->lsctl.tear,
- cpuhw->lsctl.dear);
+ cpuhw->lsctl.tear, cpuhw->lsctl.dear);
return 0;
}
@@ -1469,8 +1470,7 @@ static bool aux_set_alert(struct aux_buffer *aux, unsigned long alert_index,
te = aux_sdb_trailer(aux, alert_index);
do {
orig_flags = te->flags;
- orig_overflow = te->overflow;
- *overflow = orig_overflow;
+ *overflow = orig_overflow = te->overflow;
if (orig_flags & SDB_TE_BUFFER_FULL_MASK) {
/*
* SDB is already set by hardware.
@@ -1512,9 +1512,12 @@ static bool aux_reset_buffer(struct aux_buffer *aux, unsigned long range,
unsigned long long *overflow)
{
unsigned long long orig_overflow, orig_flags, new_flags;
- unsigned long i, range_scan, idx;
+ unsigned long i, range_scan, idx, idx_old;
struct hws_trailer_entry *te;
+ debug_sprintf_event(sfdbg, 6, "%s: range %ld head %ld alert %ld "
+ "empty %ld\n", __func__, range, aux->head,
+ aux->alert_mark, aux->empty_mark);
if (range <= AUX_SDB_NUM_EMPTY(aux))
/*
* No need to scan. All SDBs in range are marked as empty.
@@ -1537,7 +1540,7 @@ static bool aux_reset_buffer(struct aux_buffer *aux, unsigned long range,
* indicator fall into this range, set it.
*/
range_scan = range - AUX_SDB_NUM_EMPTY(aux);
- idx = aux->empty_mark + 1;
+ idx_old = idx = aux->empty_mark + 1;
for (i = 0; i < range_scan; i++, idx++) {
te = aux_sdb_trailer(aux, idx);
do {
@@ -1557,6 +1560,9 @@ static bool aux_reset_buffer(struct aux_buffer *aux, unsigned long range,
/* Update empty_mark to new position */
aux->empty_mark = aux->head + range - 1;
+ debug_sprintf_event(sfdbg, 6, "%s: range_scan %ld idx %ld..%ld "
+ "empty %ld\n", __func__, range_scan, idx_old,
+ idx - 1, aux->empty_mark);
return true;
}
@@ -1570,7 +1576,6 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
unsigned long range = 0, size;
unsigned long long overflow = 0;
struct perf_output_handle *handle = &cpuhw->handle;
- unsigned long num_sdb;
aux = perf_get_aux(handle);
if (WARN_ON_ONCE(!aux))
@@ -1578,8 +1583,9 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
/* Inform user space new data arrived */
size = AUX_SDB_NUM_ALERT(aux) << PAGE_SHIFT;
+ debug_sprintf_event(sfdbg, 6, "%s: #alert %ld\n", __func__,
+ size >> PAGE_SHIFT);
perf_aux_output_end(handle, size);
- num_sdb = aux->sfb.num_sdb;
while (!done) {
/* Get an output handle */
@@ -1587,7 +1593,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
if (handle->size == 0) {
pr_err("The AUX buffer with %lu pages for the "
"diagnostic-sampling mode is full\n",
- num_sdb);
+ aux->sfb.num_sdb);
debug_sprintf_event(sfdbg, 1,
"%s: AUX buffer used up\n",
__func__);
@@ -1612,14 +1618,14 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
size = range << PAGE_SHIFT;
perf_aux_output_end(&cpuhw->handle, size);
pr_err("Sample data caused the AUX buffer with %lu "
- "pages to overflow\n", num_sdb);
- debug_sprintf_event(sfdbg, 1, "%s: head %#lx range %#lx "
- "overflow %#llx\n", __func__,
+ "pages to overflow\n", aux->sfb.num_sdb);
+ debug_sprintf_event(sfdbg, 1, "%s: head %ld range %ld "
+ "overflow %lld\n", __func__,
aux->head, range, overflow);
} else {
size = AUX_SDB_NUM_ALERT(aux) << PAGE_SHIFT;
perf_aux_output_end(&cpuhw->handle, size);
- debug_sprintf_event(sfdbg, 6, "%s: head %#lx alert %#lx "
+ debug_sprintf_event(sfdbg, 6, "%s: head %ld alert %ld "
"already full, try another\n",
__func__,
aux->head, aux->alert_mark);
@@ -1627,11 +1633,9 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
}
if (done)
- debug_sprintf_event(sfdbg, 6, "%s: aux_reset_buffer "
- "[%#lx -> %#lx -> %#lx] (%#lx, %#lx)\n",
- __func__, aux->head, aux->alert_mark,
- aux->empty_mark, AUX_SDB_NUM_ALERT(aux),
- range);
+ debug_sprintf_event(sfdbg, 6, "%s: head %ld alert %ld "
+ "empty %ld\n", __func__, aux->head,
+ aux->alert_mark, aux->empty_mark);
}
/*
@@ -1654,8 +1658,7 @@ static void aux_buffer_free(void *data)
kfree(aux->sdb_index);
kfree(aux);
- debug_sprintf_event(sfdbg, 4, "%s: free "
- "%lu SDBTs\n", __func__, num_sdbt);
+ debug_sprintf_event(sfdbg, 4, "%s: SDBTs %lu\n", __func__, num_sdbt);
}
static void aux_sdb_init(unsigned long sdb)
@@ -1707,13 +1710,13 @@ static void *aux_buffer_setup(struct perf_event *event, void **pages,
}
/* Allocate aux_buffer struct for the event */
- aux = kmalloc(sizeof(struct aux_buffer), GFP_KERNEL);
+ aux = kzalloc(sizeof(struct aux_buffer), GFP_KERNEL);
if (!aux)
goto no_aux;
sfb = &aux->sfb;
/* Allocate sdbt_index for fast reference */
- n_sdbt = (nr_pages + CPUM_SF_SDB_PER_TABLE - 1) / CPUM_SF_SDB_PER_TABLE;
+ n_sdbt = DIV_ROUND_UP(nr_pages, CPUM_SF_SDB_PER_TABLE);
aux->sdbt_index = kmalloc_array(n_sdbt, sizeof(void *), GFP_KERNEL);
if (!aux->sdbt_index)
goto no_sdbt_index;
@@ -1763,8 +1766,8 @@ static void *aux_buffer_setup(struct perf_event *event, void **pages,
*/
aux->empty_mark = sfb->num_sdb - 1;
- debug_sprintf_event(sfdbg, 4, "%s: setup %lu SDBTs and %lu SDBs\n",
- __func__, sfb->num_sdbt, sfb->num_sdb);
+ debug_sprintf_event(sfdbg, 4, "%s: SDBTs %lu SDBs %lu\n", __func__,
+ sfb->num_sdbt, sfb->num_sdb);
return aux;
diff --git a/arch/s390/kernel/pgm_check.S b/arch/s390/kernel/pgm_check.S
index 59dee9d3bebf..eee3a482195a 100644
--- a/arch/s390/kernel/pgm_check.S
+++ b/arch/s390/kernel/pgm_check.S
@@ -81,7 +81,7 @@ PGM_CHECK_DEFAULT /* 3c */
PGM_CHECK_DEFAULT /* 3d */
PGM_CHECK_DEFAULT /* 3e */
PGM_CHECK_DEFAULT /* 3f */
-PGM_CHECK_DEFAULT /* 40 */
+PGM_CHECK(monitor_event_exception) /* 40 */
PGM_CHECK_DEFAULT /* 41 */
PGM_CHECK_DEFAULT /* 42 */
PGM_CHECK_DEFAULT /* 43 */
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 9cbf490fd162..87a467dff5eb 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -241,8 +241,6 @@ static void __init conmode_default(void)
SET_CONSOLE_SCLP;
#endif
}
- if (IS_ENABLED(CONFIG_VT) && IS_ENABLED(CONFIG_DUMMY_CONSOLE))
- conswitchp = &dummy_con;
}
#ifdef CONFIG_CRASH_DUMP
@@ -1052,7 +1050,7 @@ static void __init log_component_list(void)
if (!early_ipl_comp_list_addr)
return;
- if (ipl_block.hdr.flags & IPL_PL_FLAG_IPLSR)
+ if (ipl_block.hdr.flags & IPL_PL_FLAG_SIPL)
pr_info("Linux is running with Secure-IPL enabled\n");
else
pr_info("Linux is running with Secure-IPL disabled\n");
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 3054e9c035a3..bd7bd3581a0f 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -438,3 +438,5 @@
433 common fspick sys_fspick sys_fspick
434 common pidfd_open sys_pidfd_open sys_pidfd_open
435 common clone3 sys_clone3 sys_clone3
+437 common openat2 sys_openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd sys_pidfd_getfd
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 164c0282b41a..dc75588d7894 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -53,11 +53,6 @@ void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str)
if (fixup)
regs->psw.addr = extable_fixup(fixup);
else {
- enum bug_trap_type btt;
-
- btt = report_bug(regs->psw.addr, regs);
- if (btt == BUG_TRAP_TYPE_WARN)
- return;
die(regs, str);
}
}
@@ -245,6 +240,27 @@ void space_switch_exception(struct pt_regs *regs)
do_trap(regs, SIGILL, ILL_PRVOPC, "space switch event");
}
+void monitor_event_exception(struct pt_regs *regs)
+{
+ const struct exception_table_entry *fixup;
+
+ if (user_mode(regs))
+ return;
+
+ switch (report_bug(regs->psw.addr - (regs->int_code >> 16), regs)) {
+ case BUG_TRAP_TYPE_NONE:
+ fixup = s390_search_extables(regs->psw.addr);
+ if (fixup)
+ regs->psw.addr = extable_fixup(fixup);
+ break;
+ case BUG_TRAP_TYPE_WARN:
+ break;
+ case BUG_TRAP_TYPE_BUG:
+ die(regs, "monitor event");
+ break;
+ }
+}
+
void kernel_stack_overflow(struct pt_regs *regs)
{
bust_spinlocks(1);
@@ -255,8 +271,23 @@ void kernel_stack_overflow(struct pt_regs *regs)
}
NOKPROBE_SYMBOL(kernel_stack_overflow);
+static void test_monitor_call(void)
+{
+ int val = 1;
+
+ asm volatile(
+ " mc 0,0\n"
+ "0: xgr %0,%0\n"
+ "1:\n"
+ EX_TABLE(0b,1b)
+ : "+d" (val));
+ if (!val)
+ panic("Monitor call doesn't work!\n");
+}
+
void __init trap_init(void)
{
sort_extable(__start_dma_ex_table, __stop_dma_ex_table);
local_mcck_enable();
+ test_monitor_call();
}
diff --git a/arch/s390/kernel/unwind_bc.c b/arch/s390/kernel/unwind_bc.c
index da2d4d4c5b0e..707fd99f6734 100644
--- a/arch/s390/kernel/unwind_bc.c
+++ b/arch/s390/kernel/unwind_bc.c
@@ -36,10 +36,17 @@ static bool update_stack_info(struct unwind_state *state, unsigned long sp)
return true;
}
-static inline bool is_task_pt_regs(struct unwind_state *state,
- struct pt_regs *regs)
+static inline bool is_final_pt_regs(struct unwind_state *state,
+ struct pt_regs *regs)
{
- return task_pt_regs(state->task) == regs;
+ /* user mode or kernel thread pt_regs at the bottom of task stack */
+ if (task_pt_regs(state->task) == regs)
+ return true;
+
+ /* user mode pt_regs at the bottom of irq stack */
+ return state->stack_info.type == STACK_TYPE_IRQ &&
+ state->stack_info.end - sizeof(struct pt_regs) == (unsigned long)regs &&
+ READ_ONCE_NOCHECK(regs->psw.mask) & PSW_MASK_PSTATE;
}
bool unwind_next_frame(struct unwind_state *state)
@@ -80,7 +87,7 @@ bool unwind_next_frame(struct unwind_state *state)
if (!on_stack(info, sp, sizeof(struct pt_regs)))
goto out_err;
regs = (struct pt_regs *) sp;
- if (is_task_pt_regs(state, regs))
+ if (is_final_pt_regs(state, regs))
goto out_stop;
ip = READ_ONCE_NOCHECK(regs->psw.addr);
sp = READ_ONCE_NOCHECK(regs->gprs[15]);
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index f0ce22220565..ac44bd76db4b 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -292,10 +292,8 @@ void arch_remove_memory(int nid, u64 start, u64 size,
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct zone *zone;
- zone = page_zone(pfn_to_page(start_pfn));
- __remove_pages(zone, start_pfn, nr_pages, altmap);
+ __remove_pages(start_pfn, nr_pages, altmap);
vmem_remove_mapping(start, size);
}
#endif /* CONFIG_MEMORY_HOTPLUG */
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 8e872951c07b..bc61ea18e88d 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -939,5 +939,5 @@ subsys_initcall_sync(pci_base_init);
void zpci_rescan(void)
{
if (zpci_is_enabled())
- clp_rescan_pci_devices_simple();
+ clp_rescan_pci_devices_simple(NULL);
}
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 4c613e569fe0..0d3d8f170ea4 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -240,12 +240,14 @@ error:
}
/*
- * Enable/Disable a given PCI function defined by its function handle.
+ * Enable/Disable a given PCI function and update its function handle if
+ * necessary
*/
-static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command)
+static int clp_set_pci_fn(struct zpci_dev *zdev, u8 nr_dma_as, u8 command)
{
struct clp_req_rsp_set_pci *rrb;
int rc, retries = 100;
+ u32 fid = zdev->fid;
rrb = clp_alloc_block(GFP_KERNEL);
if (!rrb)
@@ -256,7 +258,7 @@ static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command)
rrb->request.hdr.len = sizeof(rrb->request);
rrb->request.hdr.cmd = CLP_SET_PCI_FN;
rrb->response.hdr.len = sizeof(rrb->response);
- rrb->request.fh = *fh;
+ rrb->request.fh = zdev->fh;
rrb->request.oc = command;
rrb->request.ndas = nr_dma_as;
@@ -269,12 +271,17 @@ static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command)
}
} while (rrb->response.hdr.rsp == CLP_RC_SETPCIFN_BUSY);
- if (!rc && rrb->response.hdr.rsp == CLP_RC_OK)
- *fh = rrb->response.fh;
- else {
+ if (rc || rrb->response.hdr.rsp != CLP_RC_OK) {
zpci_err("Set PCI FN:\n");
zpci_err_clp(rrb->response.hdr.rsp, rc);
- rc = -EIO;
+ }
+
+ if (!rc && rrb->response.hdr.rsp == CLP_RC_OK) {
+ zdev->fh = rrb->response.fh;
+ } else if (!rc && rrb->response.hdr.rsp == CLP_RC_SETPCIFN_ALRDY &&
+ rrb->response.fh == 0) {
+ /* Function is already in desired state - update handle */
+ rc = clp_rescan_pci_devices_simple(&fid);
}
clp_free_block(rrb);
return rc;
@@ -282,18 +289,17 @@ static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command)
int clp_enable_fh(struct zpci_dev *zdev, u8 nr_dma_as)
{
- u32 fh = zdev->fh;
int rc;
- rc = clp_set_pci_fn(&fh, nr_dma_as, CLP_SET_ENABLE_PCI_FN);
- zpci_dbg(3, "ena fid:%x, fh:%x, rc:%d\n", zdev->fid, fh, rc);
+ rc = clp_set_pci_fn(zdev, nr_dma_as, CLP_SET_ENABLE_PCI_FN);
+ zpci_dbg(3, "ena fid:%x, fh:%x, rc:%d\n", zdev->fid, zdev->fh, rc);
if (rc)
goto out;
- zdev->fh = fh;
if (zpci_use_mio(zdev)) {
- rc = clp_set_pci_fn(&fh, nr_dma_as, CLP_SET_ENABLE_MIO);
- zpci_dbg(3, "ena mio fid:%x, fh:%x, rc:%d\n", zdev->fid, fh, rc);
+ rc = clp_set_pci_fn(zdev, nr_dma_as, CLP_SET_ENABLE_MIO);
+ zpci_dbg(3, "ena mio fid:%x, fh:%x, rc:%d\n",
+ zdev->fid, zdev->fh, rc);
if (rc)
clp_disable_fh(zdev);
}
@@ -309,11 +315,8 @@ int clp_disable_fh(struct zpci_dev *zdev)
if (!zdev_enabled(zdev))
return 0;
- rc = clp_set_pci_fn(&fh, 0, CLP_SET_DISABLE_PCI_FN);
+ rc = clp_set_pci_fn(zdev, 0, CLP_SET_DISABLE_PCI_FN);
zpci_dbg(3, "dis fid:%x, fh:%x, rc:%d\n", zdev->fid, fh, rc);
- if (!rc)
- zdev->fh = fh;
-
return rc;
}
@@ -370,10 +373,14 @@ static void __clp_add(struct clp_fh_list_entry *entry, void *data)
static void __clp_update(struct clp_fh_list_entry *entry, void *data)
{
struct zpci_dev *zdev;
+ u32 *fid = data;
if (!entry->vendor_id)
return;
+ if (fid && *fid != entry->fid)
+ return;
+
zdev = get_zdev_by_fid(entry->fid);
if (!zdev)
return;
@@ -413,7 +420,10 @@ int clp_rescan_pci_devices(void)
return rc;
}
-int clp_rescan_pci_devices_simple(void)
+/* Rescan PCI functions and refresh function handles. If fid is non-NULL only
+ * refresh the handle of the function matching @fid
+ */
+int clp_rescan_pci_devices_simple(u32 *fid)
{
struct clp_req_rsp_list_pci *rrb;
int rc;
@@ -422,7 +432,7 @@ int clp_rescan_pci_devices_simple(void)
if (!rrb)
return -ENOMEM;
- rc = clp_list_pci(rrb, NULL, __clp_update);
+ rc = clp_list_pci(rrb, fid, __clp_update);
clp_free_block(rrb);
return rc;
diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c
index a433ba01a317..215f17437a4f 100644
--- a/arch/s390/pci/pci_sysfs.c
+++ b/arch/s390/pci/pci_sysfs.c
@@ -13,6 +13,8 @@
#include <linux/stat.h>
#include <linux/pci.h>
+#include "../../../drivers/pci/pci.h"
+
#include <asm/sclp.h>
#define zpci_attr(name, fmt, member) \
@@ -49,31 +51,50 @@ static DEVICE_ATTR_RO(mio_enabled);
static ssize_t recover_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
+ struct kernfs_node *kn;
struct pci_dev *pdev = to_pci_dev(dev);
struct zpci_dev *zdev = to_zpci(pdev);
- int ret;
-
- if (!device_remove_file_self(dev, attr))
- return count;
-
+ int ret = 0;
+
+ /* Can't use device_remove_self() here as that would lead us to lock
+ * the pci_rescan_remove_lock while holding the device' kernfs lock.
+ * This would create a possible deadlock with disable_slot() which is
+ * not directly protected by the device' kernfs lock but takes it
+ * during the device removal which happens under
+ * pci_rescan_remove_lock.
+ *
+ * This is analogous to sdev_store_delete() in
+ * drivers/scsi/scsi_sysfs.c
+ */
+ kn = sysfs_break_active_protection(&dev->kobj, &attr->attr);
+ WARN_ON_ONCE(!kn);
+ /* device_remove_file() serializes concurrent calls ignoring all but
+ * the first
+ */
+ device_remove_file(dev, attr);
+
+ /* A concurrent call to recover_store() may slip between
+ * sysfs_break_active_protection() and the sysfs file removal.
+ * Once it unblocks from pci_lock_rescan_remove() the original pdev
+ * will already be removed.
+ */
pci_lock_rescan_remove();
- pci_stop_and_remove_bus_device(pdev);
- ret = zpci_disable_device(zdev);
- if (ret)
- goto error;
-
- ret = zpci_enable_device(zdev);
- if (ret)
- goto error;
-
- pci_rescan_bus(zdev->bus);
+ if (pci_dev_is_added(pdev)) {
+ pci_stop_and_remove_bus_device(pdev);
+ ret = zpci_disable_device(zdev);
+ if (ret)
+ goto out;
+
+ ret = zpci_enable_device(zdev);
+ if (ret)
+ goto out;
+ pci_rescan_bus(zdev->bus);
+ }
+out:
pci_unlock_rescan_remove();
-
- return count;
-
-error:
- pci_unlock_rescan_remove();
- return ret;
+ if (kn)
+ sysfs_unbreak_active_protection(kn);
+ return ret ? ret : count;
}
static DEVICE_ATTR_WO(recover);
diff --git a/arch/s390/purgatory/.gitignore b/arch/s390/purgatory/.gitignore
index 04a03433c720..c82157f46b18 100644
--- a/arch/s390/purgatory/.gitignore
+++ b/arch/s390/purgatory/.gitignore
@@ -1,3 +1,4 @@
purgatory
+purgatory.chk
purgatory.lds
purgatory.ro
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index bc0d7a0d0394..c57f8c40e992 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -4,7 +4,7 @@ OBJECT_FILES_NON_STANDARD := y
purgatory-y := head.o purgatory.o string.o sha256.o mem.o
-targets += $(purgatory-y) purgatory.lds purgatory purgatory.ro
+targets += $(purgatory-y) purgatory.lds purgatory purgatory.chk purgatory.ro
PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))
$(obj)/sha256.o: $(srctree)/lib/crypto/sha256.c FORCE
@@ -15,8 +15,10 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS
$(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE
$(call if_changed_rule,as_o_S)
-$(obj)/string.o: $(srctree)/arch/s390/lib/string.c FORCE
- $(call if_changed_rule,cc_o_c)
+KCOV_INSTRUMENT := n
+GCOV_PROFILE := n
+UBSAN_SANITIZE := n
+KASAN_SANITIZE := n
KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
@@ -26,15 +28,22 @@ KBUILD_CFLAGS += $(CLANG_FLAGS)
KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS))
-LDFLAGS_purgatory := -r --no-undefined -nostdlib -z nodefaultlib -T
+# Since we link purgatory with -r unresolved symbols are not checked, so we
+# also link a purgatory.chk binary without -r to check for unresolved symbols.
+PURGATORY_LDFLAGS := -nostdlib -z nodefaultlib
+LDFLAGS_purgatory := -r $(PURGATORY_LDFLAGS) -T
+LDFLAGS_purgatory.chk := -e purgatory_start $(PURGATORY_LDFLAGS)
$(obj)/purgatory: $(obj)/purgatory.lds $(PURGATORY_OBJS) FORCE
$(call if_changed,ld)
+$(obj)/purgatory.chk: $(obj)/purgatory FORCE
+ $(call if_changed,ld)
+
OBJCOPYFLAGS_purgatory.ro := -O elf64-s390
OBJCOPYFLAGS_purgatory.ro += --remove-section='*debug*'
OBJCOPYFLAGS_purgatory.ro += --remove-section='.comment'
OBJCOPYFLAGS_purgatory.ro += --remove-section='.note.*'
-$(obj)/purgatory.ro: $(obj)/purgatory FORCE
+$(obj)/purgatory.ro: $(obj)/purgatory $(obj)/purgatory.chk FORCE
$(call if_changed,objcopy)
$(obj)/kexec-purgatory.o: $(obj)/kexec-purgatory.S $(obj)/purgatory.ro FORCE
diff --git a/arch/s390/purgatory/string.c b/arch/s390/purgatory/string.c
new file mode 100644
index 000000000000..c98c22a72db7
--- /dev/null
+++ b/arch/s390/purgatory/string.c
@@ -0,0 +1,3 @@
+// SPDX-License-Identifier: GPL-2.0
+#define __HAVE_ARCH_MEMCMP /* arch function */
+#include "../lib/string.c"
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index f356ee674d89..9ece111b0254 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -108,7 +108,7 @@ config GENERIC_CALIBRATE_DELAY
config GENERIC_LOCKBREAK
def_bool y
- depends on SMP && PREEMPT
+ depends on SMP && PREEMPTION
config ARCH_SUSPEND_POSSIBLE
def_bool n
diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c
index d964c4d6b139..77dad1e511b4 100644
--- a/arch/sh/boards/board-sh7785lcr.c
+++ b/arch/sh/boards/board-sh7785lcr.c
@@ -341,7 +341,7 @@ static void __init sh7785lcr_setup(char **cmdline_p)
pm_power_off = sh7785lcr_power_off;
/* sm501 DRAM configuration */
- sm501_reg = ioremap_nocache(SM107_REG_ADDR, SM501_DRAM_CONTROL);
+ sm501_reg = ioremap(SM107_REG_ADDR, SM501_DRAM_CONTROL);
if (!sm501_reg) {
printk(KERN_ERR "%s: ioremap error.\n", __func__);
return;
diff --git a/arch/sh/boards/mach-cayman/irq.c b/arch/sh/boards/mach-cayman/irq.c
index 9108789fafef..3b6ea2d99013 100644
--- a/arch/sh/boards/mach-cayman/irq.c
+++ b/arch/sh/boards/mach-cayman/irq.c
@@ -137,7 +137,7 @@ void init_cayman_irq(void)
{
int i;
- epld_virt = (unsigned long)ioremap_nocache(EPLD_BASE, 1024);
+ epld_virt = (unsigned long)ioremap(EPLD_BASE, 1024);
if (!epld_virt) {
printk(KERN_ERR "Cayman IRQ: Unable to remap EPLD\n");
return;
diff --git a/arch/sh/boards/mach-cayman/setup.c b/arch/sh/boards/mach-cayman/setup.c
index 4cec14700adc..8ef76e288da0 100644
--- a/arch/sh/boards/mach-cayman/setup.c
+++ b/arch/sh/boards/mach-cayman/setup.c
@@ -99,7 +99,7 @@ static int __init smsc_superio_setup(void)
{
unsigned char devid, devrev;
- smsc_superio_virt = (unsigned long)ioremap_nocache(SMSC_SUPERIO_BASE, 1024);
+ smsc_superio_virt = (unsigned long)ioremap(SMSC_SUPERIO_BASE, 1024);
if (!smsc_superio_virt) {
panic("Unable to remap SMSC SuperIO\n");
}
diff --git a/arch/sh/boards/mach-sdk7786/fpga.c b/arch/sh/boards/mach-sdk7786/fpga.c
index 895576ff8376..a37e1e88c6b1 100644
--- a/arch/sh/boards/mach-sdk7786/fpga.c
+++ b/arch/sh/boards/mach-sdk7786/fpga.c
@@ -32,7 +32,7 @@ static void __iomem *sdk7786_fpga_probe(void)
* is reserved.
*/
for (area = PA_AREA0; area < PA_AREA7; area += SZ_64M) {
- base = ioremap_nocache(area + FPGA_REGS_OFFSET, FPGA_REGS_SIZE);
+ base = ioremap(area + FPGA_REGS_OFFSET, FPGA_REGS_SIZE);
if (!base) {
/* Failed to remap this area, move along. */
continue;
diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c
index cf2fcccca812..24391b444b28 100644
--- a/arch/sh/drivers/heartbeat.c
+++ b/arch/sh/drivers/heartbeat.c
@@ -96,7 +96,7 @@ static int heartbeat_drv_probe(struct platform_device *pdev)
return -ENOMEM;
}
- hd->base = ioremap_nocache(res->start, resource_size(res));
+ hd->base = ioremap(res->start, resource_size(res));
if (unlikely(!hd->base)) {
dev_err(&pdev->dev, "ioremap failed\n");
diff --git a/arch/sh/drivers/pci/pci-sh5.c b/arch/sh/drivers/pci/pci-sh5.c
index 49303fab187b..03225d27770b 100644
--- a/arch/sh/drivers/pci/pci-sh5.c
+++ b/arch/sh/drivers/pci/pci-sh5.c
@@ -115,12 +115,12 @@ static int __init sh5pci_init(void)
return -EINVAL;
}
- pcicr_virt = (unsigned long)ioremap_nocache(SH5PCI_ICR_BASE, 1024);
+ pcicr_virt = (unsigned long)ioremap(SH5PCI_ICR_BASE, 1024);
if (!pcicr_virt) {
panic("Unable to remap PCICR\n");
}
- PCI_IO_AREA = (unsigned long)ioremap_nocache(SH5PCI_IO_BASE, 0x10000);
+ PCI_IO_AREA = (unsigned long)ioremap(SH5PCI_IO_BASE, 0x10000);
if (!PCI_IO_AREA) {
panic("Unable to remap PCIIO\n");
}
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 1495489225ac..39c9ead489e5 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -367,7 +367,6 @@ static inline void ioremap_fixed_init(void) { }
static inline int iounmap_fixed(void __iomem *addr) { return -EINVAL; }
#endif
-#define ioremap_nocache ioremap
#define ioremap_uc ioremap
/*
diff --git a/arch/sh/include/asm/vmalloc.h b/arch/sh/include/asm/vmalloc.h
new file mode 100644
index 000000000000..716b77472646
--- /dev/null
+++ b/arch/sh/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SH_VMALLOC_H
+#define _ASM_SH_VMALLOC_H
+
+#endif /* _ASM_SH_VMALLOC_H */
diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7264.h b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
index d12c19186845..8a1338aaf10a 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7264.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
@@ -112,12 +112,6 @@ enum {
GPIO_FN_TIOC0D, GPIO_FN_TIOC0C, GPIO_FN_TIOC0B, GPIO_FN_TIOC0A,
GPIO_FN_TCLKD, GPIO_FN_TCLKC, GPIO_FN_TCLKB, GPIO_FN_TCLKA,
- /* SSU */
- GPIO_FN_SCS0_PD, GPIO_FN_SSO0_PD, GPIO_FN_SSI0_PD, GPIO_FN_SSCK0_PD,
- GPIO_FN_SCS0_PF, GPIO_FN_SSO0_PF, GPIO_FN_SSI0_PF, GPIO_FN_SSCK0_PF,
- GPIO_FN_SCS1_PD, GPIO_FN_SSO1_PD, GPIO_FN_SSI1_PD, GPIO_FN_SSCK1_PD,
- GPIO_FN_SCS1_PF, GPIO_FN_SSO1_PF, GPIO_FN_SSI1_PF, GPIO_FN_SSCK1_PF,
-
/* SCIF */
GPIO_FN_SCK0, GPIO_FN_SCK1, GPIO_FN_SCK2, GPIO_FN_SCK3,
GPIO_FN_RXD0, GPIO_FN_RXD1, GPIO_FN_RXD2, GPIO_FN_RXD3,
diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7269.h b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
index d516e5d48818..fece521c74b3 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7269.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
@@ -78,8 +78,15 @@ enum {
GPIO_FN_WDTOVF,
/* CAN */
- GPIO_FN_CTX1, GPIO_FN_CRX1, GPIO_FN_CTX0, GPIO_FN_CTX0_CTX1,
- GPIO_FN_CRX0, GPIO_FN_CRX0_CRX1, GPIO_FN_CRX0_CRX1_CRX2,
+ GPIO_FN_CTX2, GPIO_FN_CRX2,
+ GPIO_FN_CTX1, GPIO_FN_CRX1,
+ GPIO_FN_CTX0, GPIO_FN_CRX0,
+ GPIO_FN_CTX0_CTX1, GPIO_FN_CRX0_CRX1,
+ GPIO_FN_CTX0_CTX1_CTX2, GPIO_FN_CRX0_CRX1_CRX2,
+ GPIO_FN_CTX2_PJ21, GPIO_FN_CRX2_PJ20,
+ GPIO_FN_CTX1_PJ23, GPIO_FN_CRX1_PJ22,
+ GPIO_FN_CTX0_CTX1_PJ23, GPIO_FN_CRX0_CRX1_PJ22,
+ GPIO_FN_CTX0_CTX1_CTX2_PJ21, GPIO_FN_CRX0_CRX1_CRX2_PJ20,
/* DMAC */
GPIO_FN_TEND0, GPIO_FN_DACK0, GPIO_FN_DREQ0,
@@ -119,12 +126,6 @@ enum {
GPIO_FN_TIOC0D, GPIO_FN_TIOC0C, GPIO_FN_TIOC0B, GPIO_FN_TIOC0A,
GPIO_FN_TCLKD, GPIO_FN_TCLKC, GPIO_FN_TCLKB, GPIO_FN_TCLKA,
- /* SSU */
- GPIO_FN_SCS0_PD, GPIO_FN_SSO0_PD, GPIO_FN_SSI0_PD, GPIO_FN_SSCK0_PD,
- GPIO_FN_SCS0_PF, GPIO_FN_SSO0_PF, GPIO_FN_SSI0_PF, GPIO_FN_SSCK0_PF,
- GPIO_FN_SCS1_PD, GPIO_FN_SSO1_PD, GPIO_FN_SSI1_PD, GPIO_FN_SSCK1_PD,
- GPIO_FN_SCS1_PF, GPIO_FN_SSO1_PF, GPIO_FN_SSI1_PF, GPIO_FN_SSCK1_PF,
-
/* SCIF */
GPIO_FN_SCK0, GPIO_FN_RXD0, GPIO_FN_TXD0,
GPIO_FN_SCK1, GPIO_FN_RXD1, GPIO_FN_TXD1, GPIO_FN_RTS1, GPIO_FN_CTS1,
diff --git a/arch/sh/include/uapi/asm/sockios.h b/arch/sh/include/uapi/asm/sockios.h
index ef18a668456d..3da561453260 100644
--- a/arch/sh/include/uapi/asm/sockios.h
+++ b/arch/sh/include/uapi/asm/sockios.h
@@ -10,7 +10,7 @@
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
-#define SIOCGSTAMP_OLD _IOR('s', 100, struct timeval) /* Get stamp (timeval) */
-#define SIOCGSTAMPNS_OLD _IOR('s', 101, struct timespec) /* Get stamp (timespec) */
+#define SIOCGSTAMP_OLD _IOR('s', 100, struct __kernel_old_timeval) /* Get stamp (timeval) */
+#define SIOCGSTAMPNS_OLD _IOR('s', 101, struct __kernel_old_timespec) /* Get stamp (timespec) */
#endif /* __ASM_SH_SOCKIOS_H */
diff --git a/arch/sh/kernel/cpu/irq/intc-sh5.c b/arch/sh/kernel/cpu/irq/intc-sh5.c
index 744f903b4df3..1b3050facda8 100644
--- a/arch/sh/kernel/cpu/irq/intc-sh5.c
+++ b/arch/sh/kernel/cpu/irq/intc-sh5.c
@@ -124,7 +124,7 @@ void __init plat_irq_setup(void)
unsigned long reg;
int i;
- intc_virt = (unsigned long)ioremap_nocache(INTC_BASE, 1024);
+ intc_virt = (unsigned long)ioremap(INTC_BASE, 1024);
if (!intc_virt) {
panic("Unable to remap INTC\n");
}
diff --git a/arch/sh/kernel/cpu/sh2/smp-j2.c b/arch/sh/kernel/cpu/sh2/smp-j2.c
index ae44dc24c455..d0d5d81455ae 100644
--- a/arch/sh/kernel/cpu/sh2/smp-j2.c
+++ b/arch/sh/kernel/cpu/sh2/smp-j2.c
@@ -88,8 +88,8 @@ static void j2_start_cpu(unsigned int cpu, unsigned long entry_point)
if (!np) return;
if (of_property_read_u32_array(np, "cpu-release-addr", regs, 2)) return;
- release = ioremap_nocache(regs[0], sizeof(u32));
- initpc = ioremap_nocache(regs[1], sizeof(u32));
+ release = ioremap(regs[0], sizeof(u32));
+ initpc = ioremap(regs[1], sizeof(u32));
__raw_writel(entry_point, initpc);
__raw_writel(1, release);
diff --git a/arch/sh/kernel/cpu/sh5/clock-sh5.c b/arch/sh/kernel/cpu/sh5/clock-sh5.c
index 43763c26a752..dee6be2c2344 100644
--- a/arch/sh/kernel/cpu/sh5/clock-sh5.c
+++ b/arch/sh/kernel/cpu/sh5/clock-sh5.c
@@ -68,7 +68,7 @@ static struct sh_clk_ops *sh5_clk_ops[] = {
void __init arch_init_clk_ops(struct sh_clk_ops **ops, int idx)
{
- cprc_base = (unsigned long)ioremap_nocache(CPRC_BASE, 1024);
+ cprc_base = (unsigned long)ioremap(CPRC_BASE, 1024);
BUG_ON(!cprc_base);
if (idx < ARRAY_SIZE(sh5_clk_ops))
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index de68ffdfffbf..81c8b64b977f 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -86,7 +86,7 @@
andi r6, ~0xf0, r6; \
putcon r6, SR;
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
# define preempt_stop() CLI()
#else
# define preempt_stop()
@@ -884,7 +884,7 @@ ret_from_exception:
/* Check softirqs */
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
pta ret_from_syscall, tr0
blink tr0, ZERO
diff --git a/arch/sh/kernel/dma-coherent.c b/arch/sh/kernel/dma-coherent.c
index eeb25a4fa55f..d4811691b93c 100644
--- a/arch/sh/kernel/dma-coherent.c
+++ b/arch/sh/kernel/dma-coherent.c
@@ -28,7 +28,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
arch_sync_dma_for_device(virt_to_phys(ret), size,
DMA_BIDIRECTIONAL);
- ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
+ ret_nocache = (void __force *)ioremap(virt_to_phys(ret), size);
if (!ret_nocache) {
free_pages((unsigned long)ret, order);
return NULL;
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index d31f66e82ce5..956a7a03b0c8 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -41,7 +41,7 @@
*/
#include <asm/dwarf.h>
-#if defined(CONFIG_PREEMPT)
+#if defined(CONFIG_PREEMPTION)
# define preempt_stop() cli ; TRACE_IRQS_OFF
#else
# define preempt_stop()
@@ -84,7 +84,7 @@ ENTRY(ret_from_irq)
get_current_thread_info r8, r0
bt resume_kernel ! Yes, it's from kernel, go back soon
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
bra resume_userspace
nop
ENTRY(resume_kernel)
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index d232cfa01877..67f5a3b44c2e 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -341,10 +341,6 @@ void __init setup_arch(char **cmdline_p)
paging_init();
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
/* Perform the machine specific initialisation */
if (likely(sh_mv.mv_setup))
sh_mv.mv_setup(cmdline_p);
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index b5ed26c4c005..c7a30fcd135f 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -438,3 +438,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
# 435 reserved for clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index dfdbaa50946e..d1b1ff2be17a 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -434,9 +434,7 @@ void arch_remove_memory(int nid, u64 start, u64 size,
{
unsigned long start_pfn = PFN_DOWN(start);
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct zone *zone;
- zone = page_zone(pfn_to_page(start_pfn));
- __remove_pages(zone, start_pfn, nr_pages, altmap);
+ __remove_pages(start_pfn, nr_pages, altmap);
}
#endif /* CONFIG_MEMORY_HOTPLUG */
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index eb24cb1afc11..e8c3ea01c12f 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -277,7 +277,7 @@ config US3_MC
config GENERIC_LOCKBREAK
bool
default y
- depends on SPARC64 && SMP && PREEMPT
+ depends on SPARC64 && SMP && PREEMPTION
config NUMA
bool "NUMA support"
diff --git a/arch/sparc/crypto/aes_glue.c b/arch/sparc/crypto/aes_glue.c
index 0f5a501c95a9..e3d2138ff9e2 100644
--- a/arch/sparc/crypto/aes_glue.c
+++ b/arch/sparc/crypto/aes_glue.c
@@ -169,7 +169,6 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_sparc64_aes_ctx *ctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
switch (key_len) {
case AES_KEYSIZE_128:
@@ -188,7 +187,6 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
break;
default:
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL;
}
diff --git a/arch/sparc/crypto/camellia_glue.c b/arch/sparc/crypto/camellia_glue.c
index 1700f863748c..aaa9714378e6 100644
--- a/arch/sparc/crypto/camellia_glue.c
+++ b/arch/sparc/crypto/camellia_glue.c
@@ -39,12 +39,9 @@ static int camellia_set_key(struct crypto_tfm *tfm, const u8 *_in_key,
{
struct camellia_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u32 *in_key = (const u32 *) _in_key;
- u32 *flags = &tfm->crt_flags;
- if (key_len != 16 && key_len != 24 && key_len != 32) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ if (key_len != 16 && key_len != 24 && key_len != 32)
return -EINVAL;
- }
ctx->key_len = key_len;
diff --git a/arch/sparc/crypto/crc32c_glue.c b/arch/sparc/crypto/crc32c_glue.c
index 1299073285a3..4e9323229e71 100644
--- a/arch/sparc/crypto/crc32c_glue.c
+++ b/arch/sparc/crypto/crc32c_glue.c
@@ -33,10 +33,8 @@ static int crc32c_sparc64_setkey(struct crypto_shash *hash, const u8 *key,
{
u32 *mctx = crypto_shash_ctx(hash);
- if (keylen != sizeof(u32)) {
- crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(u32))
return -EINVAL;
- }
*(__le32 *)mctx = le32_to_cpup((__le32 *)key);
return 0;
}
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 30b1763580b1..40a267b3bd52 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -125,23 +125,6 @@ typedef u32 compat_sigset_word;
#define COMPAT_OFF_T_MAX 0x7fffffff
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
- return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
- return (u32)(unsigned long)uptr;
-}
-
#ifdef CONFIG_COMPAT
static inline void __user *arch_compat_alloc_user_space(long len)
{
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index f4afa301954a..9bb27e5c22f1 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -406,7 +406,6 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
return (void __iomem *)offset;
}
-#define ioremap_nocache(X,Y) ioremap((X),(Y))
#define ioremap_uc(X,Y) ioremap((X),(Y))
#define ioremap_wc(X,Y) ioremap((X),(Y))
#define ioremap_wt(X,Y) ioremap((X),(Y))
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index 9d3e5cc95bbb..264e76ceccf6 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -16,12 +16,12 @@
extern struct kmem_cache *pgtable_cache;
-static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
+static inline void __p4d_populate(p4d_t *p4d, pud_t *pud)
{
- pgd_set(pgd, pud);
+ p4d_set(p4d, pud);
}
-#define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD)
+#define p4d_populate(MM, P4D, PUD) __p4d_populate(P4D, PUD)
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 6ae8016ef4ec..34ff3b43afbb 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -13,7 +13,7 @@
* the SpitFire page tables.
*/
-#include <asm-generic/5level-fixup.h>
+#include <asm-generic/pgtable-nop4d.h>
#include <linux/compiler.h>
#include <linux/const.h>
#include <asm/types.h>
@@ -810,9 +810,9 @@ static inline int pmd_present(pmd_t pmd)
#define pud_bad(pud) (pud_val(pud) & ~PAGE_MASK)
-#define pgd_none(pgd) (!pgd_val(pgd))
+#define p4d_none(p4d) (!p4d_val(p4d))
-#define pgd_bad(pgd) (pgd_val(pgd) & ~PAGE_MASK)
+#define p4d_bad(p4d) (p4d_val(p4d) & ~PAGE_MASK)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
void set_pmd_at(struct mm_struct *mm, unsigned long addr,
@@ -859,13 +859,13 @@ static inline unsigned long pud_page_vaddr(pud_t pud)
#define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0UL)
#define pud_present(pud) (pud_val(pud) != 0U)
#define pud_clear(pudp) (pud_val(*(pudp)) = 0UL)
-#define pgd_page_vaddr(pgd) \
- ((unsigned long) __va(pgd_val(pgd)))
-#define pgd_present(pgd) (pgd_val(pgd) != 0U)
-#define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0UL)
+#define p4d_page_vaddr(p4d) \
+ ((unsigned long) __va(p4d_val(p4d)))
+#define p4d_present(p4d) (p4d_val(p4d) != 0U)
+#define p4d_clear(p4dp) (p4d_val(*(p4dp)) = 0UL)
/* only used by the stubbed out hugetlb gup code, should never be called */
-#define pgd_page(pgd) NULL
+#define p4d_page(p4d) NULL
static inline unsigned long pud_large(pud_t pud)
{
@@ -884,8 +884,8 @@ static inline unsigned long pud_pfn(pud_t pud)
/* Same in both SUN4V and SUN4U. */
#define pte_none(pte) (!pte_val(pte))
-#define pgd_set(pgdp, pudp) \
- (pgd_val(*(pgdp)) = (__pa((unsigned long) (pudp))))
+#define p4d_set(p4dp, pudp) \
+ (p4d_val(*(p4dp)) = (__pa((unsigned long) (pudp))))
/* to find an entry in a page-table-directory. */
#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
@@ -896,8 +896,8 @@ static inline unsigned long pud_pfn(pud_t pud)
/* Find an entry in the third-level page table.. */
#define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))
-#define pud_offset(pgdp, address) \
- ((pud_t *) pgd_page_vaddr(*(pgdp)) + pud_index(address))
+#define pud_offset(p4dp, address) \
+ ((pud_t *) p4d_page_vaddr(*(p4dp)) + pud_index(address))
/* Find an entry in the second-level page table.. */
#define pmd_offset(pudp, address) \
diff --git a/arch/sparc/include/asm/vmalloc.h b/arch/sparc/include/asm/vmalloc.h
new file mode 100644
index 000000000000..04b8ab9518b8
--- /dev/null
+++ b/arch/sparc/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_SPARC_VMALLOC_H
+#define _ASM_SPARC_VMALLOC_H
+
+#endif /* _ASM_SPARC_VMALLOC_H */
diff --git a/arch/sparc/include/uapi/asm/ipcbuf.h b/arch/sparc/include/uapi/asm/ipcbuf.h
index 5b933a598a33..0ea1240d2ea1 100644
--- a/arch/sparc/include/uapi/asm/ipcbuf.h
+++ b/arch/sparc/include/uapi/asm/ipcbuf.h
@@ -17,19 +17,19 @@
struct ipc64_perm
{
- __kernel_key_t key;
- __kernel_uid_t uid;
- __kernel_gid_t gid;
- __kernel_uid_t cuid;
- __kernel_gid_t cgid;
+ __kernel_key_t key;
+ __kernel_uid32_t uid;
+ __kernel_gid32_t gid;
+ __kernel_uid32_t cuid;
+ __kernel_gid32_t cgid;
#ifndef __arch64__
- unsigned short __pad0;
+ unsigned short __pad0;
#endif
- __kernel_mode_t mode;
- unsigned short __pad1;
- unsigned short seq;
- unsigned long long __unused1;
- unsigned long long __unused2;
+ __kernel_mode_t mode;
+ unsigned short __pad1;
+ unsigned short seq;
+ unsigned long long __unused1;
+ unsigned long long __unused2;
};
#endif /* __SPARC_IPCBUF_H */
diff --git a/arch/sparc/include/uapi/asm/statfs.h b/arch/sparc/include/uapi/asm/statfs.h
deleted file mode 100644
index 20c8f5bd340e..000000000000
--- a/arch/sparc/include/uapi/asm/statfs.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef ___ASM_SPARC_STATFS_H
-#define ___ASM_SPARC_STATFS_H
-
-#include <asm-generic/statfs.h>
-
-#endif
diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c
index ec244d1022ce..da8902295c8c 100644
--- a/arch/sparc/kernel/prom_32.c
+++ b/arch/sparc/kernel/prom_32.c
@@ -132,12 +132,13 @@ static void __init ebus_path_component(struct device_node *dp, char *tmp_buf)
regs->which_io, regs->phys_addr);
}
-/* "name:vendor:device@irq,addrlo" */
+/* "name@irq,addrlo" */
static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf)
{
const char *name = of_get_property(dp, "name", NULL);
struct amba_prom_registers *regs;
- unsigned int *intr, *device, *vendor, reg0;
+ unsigned int *intr;
+ unsigned int reg0;
struct property *prop;
int interrupt = 0;
@@ -159,18 +160,7 @@ static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf)
else
intr = prop->value;
- prop = of_find_property(dp, "vendor", NULL);
- if (!prop)
- return;
- vendor = prop->value;
- prop = of_find_property(dp, "device", NULL);
- if (!prop)
- return;
- device = prop->value;
-
- sprintf(tmp_buf, "%s:%d:%d@%x,%x",
- name, *vendor, *device,
- *intr, reg0);
+ sprintf(tmp_buf, "%s@%x,%x", name, *intr, reg0);
}
static void __init __build_path_component(struct device_node *dp, char *tmp_buf)
diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index 29aa34f11720..c5fd4b450d9b 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -310,7 +310,7 @@ kern_rtt_restore:
retry
to_kernel:
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
ldsw [%g6 + TI_PRE_COUNT], %l5
brnz %l5, kern_fpucheck
ldx [%g6 + TI_FLAGS], %l5
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index afe1592a6d08..5d1bcfce05d8 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -332,10 +332,6 @@ void __init setup_arch(char **cmdline_p)
break;
}
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
idprom_init();
load_mmu();
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index fd2182a5c32d..75e3992203b6 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -653,10 +653,6 @@ void __init setup_arch(char **cmdline_p)
else
pr_info("ARCH: SUN4U\n");
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
idprom_init();
if (!root_flags)
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index a237810aa9f4..2a734ecd0a40 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -299,6 +299,7 @@ static void flush_signal_insns(unsigned long address)
unsigned long pstate, paddr;
pte_t *ptep, pte;
pgd_t *pgdp;
+ p4d_t *p4dp;
pud_t *pudp;
pmd_t *pmdp;
@@ -318,7 +319,10 @@ static void flush_signal_insns(unsigned long address)
pgdp = pgd_offset(current->mm, address);
if (pgd_none(*pgdp))
goto out_irqs_on;
- pudp = pud_offset(pgdp, address);
+ p4dp = p4d_offset(pgdp, address);
+ if (p4d_none(*p4dp))
+ goto out_irqs_on;
+ pudp = pud_offset(p4dp, address);
if (pud_none(*pudp))
goto out_irqs_on;
pmdp = pmd_offset(pudp, address);
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 9b4506373353..80f20b3808ee 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1621,6 +1621,7 @@ static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
static void __init pcpu_populate_pte(unsigned long addr)
{
pgd_t *pgd = pgd_offset_k(addr);
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
@@ -1633,7 +1634,17 @@ static void __init pcpu_populate_pte(unsigned long addr)
pgd_populate(&init_mm, pgd, new);
}
- pud = pud_offset(pgd, addr);
+ p4d = p4d_offset(pgd, addr);
+ if (p4d_none(*p4d)) {
+ pud_t *new;
+
+ new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
+ p4d_populate(&init_mm, p4d, new);
+ }
+
+ pud = pud_offset(p4d, addr);
if (pud_none(*pud)) {
pmd_t *new;
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 9f41a6f5a032..34917617f258 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -548,34 +548,35 @@ out_unlock:
return err;
}
-SYSCALL_DEFINE1(sparc_adjtimex, struct timex __user *, txc_p)
+SYSCALL_DEFINE1(sparc_adjtimex, struct __kernel_timex __user *, txc_p)
{
- struct timex txc; /* Local copy of parameter */
- struct __kernel_timex *kt = (void *)&txc;
+ struct __kernel_timex txc;
+ struct __kernel_old_timeval *tv = (void *)&txc_p->time;
int ret;
/* Copy the user data space into the kernel copy
* structure. But bear in mind that the structures
* may change
*/
- if (copy_from_user(&txc, txc_p, sizeof(struct timex)))
+ if (copy_from_user(&txc, txc_p, sizeof(txc)))
return -EFAULT;
/*
* override for sparc64 specific timeval type: tv_usec
* is 32 bit wide instead of 64-bit in __kernel_timex
*/
- kt->time.tv_usec = txc.time.tv_usec;
- ret = do_adjtimex(kt);
- txc.time.tv_usec = kt->time.tv_usec;
+ txc.time.tv_usec = tv->tv_usec;
+ ret = do_adjtimex(&txc);
+ tv->tv_usec = txc.time.tv_usec;
- return copy_to_user(txc_p, &txc, sizeof(struct timex)) ? -EFAULT : ret;
+ return copy_to_user(txc_p, &txc, sizeof(txc)) ? -EFAULT : ret;
}
-SYSCALL_DEFINE2(sparc_clock_adjtime, const clockid_t, which_clock,struct timex __user *, txc_p)
+SYSCALL_DEFINE2(sparc_clock_adjtime, const clockid_t, which_clock,
+ struct __kernel_timex __user *, txc_p)
{
- struct timex txc; /* Local copy of parameter */
- struct __kernel_timex *kt = (void *)&txc;
+ struct __kernel_timex txc;
+ struct __kernel_old_timeval *tv = (void *)&txc_p->time;
int ret;
if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) {
@@ -590,18 +591,18 @@ SYSCALL_DEFINE2(sparc_clock_adjtime, const clockid_t, which_clock,struct timex _
* structure. But bear in mind that the structures
* may change
*/
- if (copy_from_user(&txc, txc_p, sizeof(struct timex)))
+ if (copy_from_user(&txc, txc_p, sizeof(txc)))
return -EFAULT;
/*
* override for sparc64 specific timeval type: tv_usec
* is 32 bit wide instead of 64-bit in __kernel_timex
*/
- kt->time.tv_usec = txc.time.tv_usec;
- ret = do_clock_adjtime(which_clock, kt);
- txc.time.tv_usec = kt->time.tv_usec;
+ txc.time.tv_usec = tv->tv_usec;
+ ret = do_clock_adjtime(which_clock, &txc);
+ tv->tv_usec = txc.time.tv_usec;
- return copy_to_user(txc_p, &txc, sizeof(struct timex)) ? -EFAULT : ret;
+ return copy_to_user(txc_p, &txc, sizeof(txc)) ? -EFAULT : ret;
}
SYSCALL_DEFINE5(utrap_install, utrap_entry_t, type,
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 8c8cc7537fb2..f13615ecdecc 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -481,3 +481,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
# 435 reserved for clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 7ec79918b566..f99e99e58075 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -171,12 +171,14 @@ SECTIONS
}
PERCPU_SECTION(SMP_CACHE_BYTES)
-#ifdef CONFIG_JUMP_LABEL
. = ALIGN(PAGE_SIZE);
.exit.text : {
EXIT_TEXT
}
-#endif
+
+ .exit.data : {
+ EXIT_DATA
+ }
. = ALIGN(PAGE_SIZE);
__init_end = .;
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 2371fb6b97e4..8b7ddbd14b65 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -80,6 +80,7 @@ static void __kprobes bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
static unsigned int get_user_insn(unsigned long tpc)
{
pgd_t *pgdp = pgd_offset(current->mm, tpc);
+ p4d_t *p4dp;
pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep, pte;
@@ -88,7 +89,10 @@ static unsigned int get_user_insn(unsigned long tpc)
if (pgd_none(*pgdp) || unlikely(pgd_bad(*pgdp)))
goto out;
- pudp = pud_offset(pgdp, tpc);
+ p4dp = p4d_offset(pgdp, tpc);
+ if (p4d_none(*p4dp) || unlikely(p4d_bad(*p4dp)))
+ goto out;
+ pudp = pud_offset(p4dp, tpc);
if (pud_none(*pudp) || unlikely(pud_bad(*pudp)))
goto out;
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index f78793a06bbd..7b9fa861b67c 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -277,11 +277,13 @@ pte_t *huge_pte_alloc(struct mm_struct *mm,
unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pgd = pgd_offset(mm, addr);
- pud = pud_alloc(mm, pgd, addr);
+ p4d = p4d_offset(pgd, addr);
+ pud = pud_alloc(mm, p4d, addr);
if (!pud)
return NULL;
if (sz >= PUD_SIZE)
@@ -298,13 +300,17 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pgd = pgd_offset(mm, addr);
if (pgd_none(*pgd))
return NULL;
- pud = pud_offset(pgd, addr);
+ p4d = p4d_offset(pgd, addr);
+ if (p4d_none(*p4d))
+ return NULL;
+ pud = pud_offset(p4d, addr);
if (pud_none(*pud))
return NULL;
if (is_hugetlb_pud(*pud))
@@ -449,7 +455,7 @@ static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
mm_dec_nr_pmds(tlb->mm);
}
-static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
+static void hugetlb_free_pud_range(struct mmu_gather *tlb, p4d_t *p4d,
unsigned long addr, unsigned long end,
unsigned long floor, unsigned long ceiling)
{
@@ -458,7 +464,7 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
unsigned long start;
start = addr;
- pud = pud_offset(pgd, addr);
+ pud = pud_offset(p4d, addr);
do {
next = pud_addr_end(addr, end);
if (pud_none_or_clear_bad(pud))
@@ -481,8 +487,8 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
if (end - 1 > ceiling - 1)
return;
- pud = pud_offset(pgd, start);
- pgd_clear(pgd);
+ pud = pud_offset(p4d, start);
+ p4d_clear(p4d);
pud_free_tlb(tlb, pud, start);
mm_dec_nr_puds(tlb->mm);
}
@@ -492,6 +498,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long floor, unsigned long ceiling)
{
pgd_t *pgd;
+ p4d_t *p4d;
unsigned long next;
addr &= PMD_MASK;
@@ -511,10 +518,11 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb,
return;
pgd = pgd_offset(tlb->mm, addr);
+ p4d = p4d_offset(pgd, addr);
do {
- next = pgd_addr_end(addr, end);
- if (pgd_none_or_clear_bad(pgd))
+ next = p4d_addr_end(addr, end);
+ if (p4d_none_or_clear_bad(p4d))
continue;
- hugetlb_free_pud_range(tlb, pgd, addr, next, floor, ceiling);
- } while (pgd++, addr = next, addr != end);
+ hugetlb_free_pud_range(tlb, p4d, addr, next, floor, ceiling);
+ } while (p4d++, addr = next, addr != end);
}
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index e6d91819da92..1cf0d666dea3 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -530,7 +530,8 @@ void __kprobes flush_icache_range(unsigned long start, unsigned long end)
paddr = kaddr & mask;
else {
pgd_t *pgdp = pgd_offset_k(kaddr);
- pud_t *pudp = pud_offset(pgdp, kaddr);
+ p4d_t *p4dp = p4d_offset(pgdp, kaddr);
+ pud_t *pudp = pud_offset(p4dp, kaddr);
pmd_t *pmdp = pmd_offset(pudp, kaddr);
pte_t *ptep = pte_offset_kernel(pmdp, kaddr);
@@ -1653,6 +1654,7 @@ static unsigned long max_phys_bits = 40;
bool kern_addr_valid(unsigned long addr)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -1674,7 +1676,11 @@ bool kern_addr_valid(unsigned long addr)
if (pgd_none(*pgd))
return 0;
- pud = pud_offset(pgd, addr);
+ p4d = p4d_offset(pgd, addr);
+ if (p4d_none(*p4d))
+ return 0;
+
+ pud = pud_offset(p4d, addr);
if (pud_none(*pud))
return 0;
@@ -1800,6 +1806,7 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
while (vstart < vend) {
unsigned long this_end, paddr = __pa(vstart);
pgd_t *pgd = pgd_offset_k(vstart);
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
@@ -1814,7 +1821,20 @@ static unsigned long __ref kernel_map_range(unsigned long pstart,
alloc_bytes += PAGE_SIZE;
pgd_populate(&init_mm, pgd, new);
}
- pud = pud_offset(pgd, vstart);
+
+ p4d = p4d_offset(pgd, vstart);
+ if (p4d_none(*p4d)) {
+ pud_t *new;
+
+ new = memblock_alloc_from(PAGE_SIZE, PAGE_SIZE,
+ PAGE_SIZE);
+ if (!new)
+ goto err_alloc;
+ alloc_bytes += PAGE_SIZE;
+ p4d_populate(&init_mm, p4d, new);
+ }
+
+ pud = pud_offset(p4d, vstart);
if (pud_none(*pud)) {
pmd_t *new;
@@ -2612,13 +2632,18 @@ int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend,
for (; vstart < vend; vstart += PMD_SIZE) {
pgd_t *pgd = vmemmap_pgd_populate(vstart, node);
unsigned long pte;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
if (!pgd)
return -ENOMEM;
- pud = vmemmap_pud_populate(pgd, vstart, node);
+ p4d = vmemmap_p4d_populate(pgd, vstart, node);
+ if (!p4d)
+ return -ENOMEM;
+
+ pud = vmemmap_pud_populate(p4d, vstart, node);
if (!pud)
return -ENOMEM;
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 2a6d04fcb3e9..0917f8443c28 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -14,6 +14,7 @@ config UML
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_DEBUG_KMEMLEAK
select HAVE_DEBUG_BUGVERBOSE
+ select HAVE_COPY_THREAD_TLS
select GENERIC_IRQ_SHOW
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
@@ -188,6 +189,8 @@ config SECCOMP
config UML_TIME_TRAVEL_SUPPORT
bool
prompt "Support time-travel mode (e.g. for test execution)"
+ # inf-cpu mode is incompatible with the benchmarking
+ depends on !RAID6_PQ_BENCHMARK
help
Enable this option to support time travel inside the UML instance.
diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
index 388096fb45a2..72d417055782 100644
--- a/arch/um/drivers/Kconfig
+++ b/arch/um/drivers/Kconfig
@@ -147,7 +147,7 @@ config UML_NET
make use of UML networking.
config UML_NET_ETHERTAP
- bool "Ethertap transport"
+ bool "Ethertap transport (obsolete)"
depends on UML_NET
help
The Ethertap User-Mode Linux network transport allows a single
@@ -167,14 +167,13 @@ config UML_NET_ETHERTAP
has examples of the UML command line to use to enable Ethertap
networking.
- If you'd like to set up an IP network with the host and/or the
- outside world, say Y to this, the Daemon Transport and/or the
- Slip Transport. You'll need at least one of them, but may choose
- more than one without conflict. If you don't need UML networking,
- say N.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
config UML_NET_TUNTAP
- bool "TUN/TAP transport"
+ bool "TUN/TAP transport (obsolete)"
depends on UML_NET
help
The UML TUN/TAP network transport allows a UML instance to exchange
@@ -185,8 +184,13 @@ config UML_NET_TUNTAP
To use this transport, your host kernel must have support for TUN/TAP
devices, either built-in or as a module.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
+
config UML_NET_SLIP
- bool "SLIP transport"
+ bool "SLIP transport (obsolete)"
depends on UML_NET
help
The slip User-Mode Linux network transport allows a running UML to
@@ -201,16 +205,13 @@ config UML_NET_SLIP
has examples of the UML command line to use to enable slip
networking, and details of a few quirks with it.
- The Ethertap Transport is preferred over slip because of its
- limitations. If you prefer slip, however, say Y here. Otherwise
- choose the Multicast transport (to network multiple UMLs on
- multiple hosts), Ethertap (to network with the host and the
- outside world), and/or the Daemon transport (to network multiple
- UMLs on a single host). You may choose more than one without
- conflict. If you don't need UML networking, say N.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
config UML_NET_DAEMON
- bool "Daemon transport"
+ bool "Daemon transport (obsolete)"
depends on UML_NET
help
This User-Mode Linux network transport allows one or more running
@@ -225,13 +226,10 @@ config UML_NET_DAEMON
has examples of the UML command line to use to enable Daemon
networking.
- If you'd like to set up a network with other UMLs on a single host,
- say Y. If you need a network between UMLs on multiple physical
- hosts, choose the Multicast Transport. To set up a network with
- the host and/or other IP machines, say Y to the Ethertap or Slip
- transports. You'll need at least one of them, but may choose
- more than one without conflict. If you don't need UML networking,
- say N.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
config UML_NET_VECTOR
bool "Vector I/O high performance network devices"
@@ -245,7 +243,7 @@ config UML_NET_VECTOR
drivers.
config UML_NET_VDE
- bool "VDE transport"
+ bool "VDE transport (obsolete)"
depends on UML_NET
help
This User-Mode Linux network transport allows one or more running
@@ -263,11 +261,13 @@ config UML_NET_VDE
That site has a good overview of what VDE is and also examples
of the UML command line to use to enable VDE networking.
- If you need UML networking with VDE,
- say Y.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
config UML_NET_MCAST
- bool "Multicast transport"
+ bool "Multicast transport (obsolete)"
depends on UML_NET
help
This Multicast User-Mode Linux network transport allows multiple
@@ -284,15 +284,13 @@ config UML_NET_MCAST
has examples of the UML command line to use to enable Multicast
networking, and notes about the security of this approach.
- If you need UMLs on multiple physical hosts to communicate as if
- they shared an Ethernet network, say Y. If you need to communicate
- with other IP machines, make sure you select one of the other
- transports (possibly in addition to Multicast; they're not
- exclusive). If you don't need to network UMLs say N to each of
- the transports.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
config UML_NET_PCAP
- bool "pcap transport"
+ bool "pcap transport (obsolete)"
depends on UML_NET
help
The pcap transport makes a pcap packet stream on the host look
@@ -304,11 +302,13 @@ config UML_NET_PCAP
<http://user-mode-linux.sourceforge.net/old/networking.html> That site
has examples of the UML command line to use to enable this option.
- If you intend to use UML as a network monitor for the host, say
- Y here. Otherwise, say N.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
config UML_NET_SLIRP
- bool "SLiRP transport"
+ bool "SLiRP transport (obsolete)"
depends on UML_NET
help
The SLiRP User-Mode Linux network transport allows a running UML
@@ -328,9 +328,10 @@ config UML_NET_SLIRP
that of a host behind a firewall that masquerades all network
connections passing through it (but is less secure).
- To use this you should first have slirp compiled somewhere
- accessible on the host, and have read its documentation. If you
- don't need UML networking, say N.
+ NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
+ migrate to UML_NET_VECTOR.
+
+ If unsure, say N.
Startup example: "eth0=slirp,FE:FD:01:02:03:04,/usr/local/bin/slirp"
diff --git a/arch/um/drivers/chan_user.h b/arch/um/drivers/chan_user.h
index 72222bb036f5..4e51b85e2a23 100644
--- a/arch/um/drivers/chan_user.h
+++ b/arch/um/drivers/chan_user.h
@@ -11,7 +11,7 @@
struct chan_opts {
void (*const announce)(char *dev_name, int dev);
char *xterm_title;
- const int raw;
+ int raw;
};
struct chan_ops {
diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h
index 760c507dd5b6..103adac691ed 100644
--- a/arch/um/drivers/cow.h
+++ b/arch/um/drivers/cow.h
@@ -11,7 +11,7 @@ extern int init_cow_file(int fd, char *cow_file, char *backing_file,
extern int file_reader(__u64 offset, char *buf, int len, void *arg);
extern int read_cow_header(int (*reader)(__u64, char *, int, void *),
void *arg, __u32 *version_out,
- char **backing_file_out, time_t *mtime_out,
+ char **backing_file_out, long long *mtime_out,
unsigned long long *size_out, int *sectorsize_out,
__u32 *align_out, int *bitmap_offset_out);
diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c
index 74b0c2686c95..29b46581ddd1 100644
--- a/arch/um/drivers/cow_user.c
+++ b/arch/um/drivers/cow_user.c
@@ -17,6 +17,7 @@
#define PATH_LEN_V1 256
+/* unsigned time_t works until year 2106 */
typedef __u32 time32_t;
struct cow_header_v1 {
@@ -197,7 +198,7 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
int sectorsize, int alignment, unsigned long long *size)
{
struct cow_header_v3 *header;
- unsigned long modtime;
+ long long modtime;
int err;
err = cow_seek_file(fd, 0);
@@ -276,7 +277,7 @@ int file_reader(__u64 offset, char *buf, int len, void *arg)
int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
__u32 *version_out, char **backing_file_out,
- time_t *mtime_out, unsigned long long *size_out,
+ long long *mtime_out, unsigned long long *size_out,
int *sectorsize_out, __u32 *align_out,
int *bitmap_offset_out)
{
@@ -363,7 +364,7 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
/*
* this was used until Dec2005 - 64bits are needed to represent
- * 2038+. I.e. we can safely do this truncating cast.
+ * 2106+. I.e. we can safely do this truncating cast.
*
* Additionally, we must use be32toh() instead of be64toh(), since
* the program used to use the former (tested - I got mtime
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 327b728f7244..35ebeebfc1a8 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -247,7 +247,7 @@ static void uml_net_set_multicast_list(struct net_device *dev)
return;
}
-static void uml_net_tx_timeout(struct net_device *dev)
+static void uml_net_tx_timeout(struct net_device *dev, unsigned int txqueue)
{
netif_trans_update(dev);
netif_wake_queue(dev);
diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c
index b213201b8a3b..26c5716fac0f 100644
--- a/arch/um/drivers/ssl.c
+++ b/arch/um/drivers/ssl.c
@@ -196,3 +196,11 @@ static int ssl_chan_setup(char *str)
__setup("ssl", ssl_chan_setup);
__channel_help(ssl_chan_setup, "ssl");
+
+static int ssl_non_raw_setup(char *str)
+{
+ opts.raw = 0;
+ return 1;
+}
+__setup("ssl-non-raw", ssl_non_raw_setup);
+__channel_help(ssl_non_raw_setup, "set serial lines to non-raw mode");
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 6627d7c30f37..247f95da057b 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -113,6 +113,7 @@ static const struct block_device_operations ubd_blops = {
.open = ubd_open,
.release = ubd_release,
.ioctl = ubd_ioctl,
+ .compat_ioctl = blkdev_compat_ptr_ioctl,
.getgeo = ubd_getgeo,
};
@@ -561,7 +562,7 @@ static inline int ubd_file_size(struct ubd *ubd_dev, __u64 *size_out)
__u32 version;
__u32 align;
char *backing_file;
- time_t mtime;
+ time64_t mtime;
unsigned long long size;
int sector_size;
int bitmap_offset;
@@ -600,9 +601,9 @@ static int read_cow_bitmap(int fd, void *buf, int offset, int len)
return 0;
}
-static int backing_file_mismatch(char *file, __u64 size, time_t mtime)
+static int backing_file_mismatch(char *file, __u64 size, time64_t mtime)
{
- unsigned long modtime;
+ time64_t modtime;
unsigned long long actual;
int err;
@@ -628,7 +629,7 @@ static int backing_file_mismatch(char *file, __u64 size, time_t mtime)
return -EINVAL;
}
if (modtime != mtime) {
- printk(KERN_ERR "mtime mismatch (%ld vs %ld) of COW header vs "
+ printk(KERN_ERR "mtime mismatch (%lld vs %lld) of COW header vs "
"backing file\n", mtime, modtime);
return -EINVAL;
}
@@ -671,7 +672,7 @@ static int open_ubd_file(char *file, struct openflags *openflags, int shared,
unsigned long *bitmap_len_out, int *data_offset_out,
int *create_cow_out)
{
- time_t mtime;
+ time64_t mtime;
unsigned long long size;
__u32 version, align;
char *backing_file;
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 92617e16829e..0ff86391f77d 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -1332,7 +1332,7 @@ static void vector_net_set_multicast_list(struct net_device *dev)
return;
}
-static void vector_net_tx_timeout(struct net_device *dev)
+static void vector_net_tx_timeout(struct net_device *dev, unsigned int txqueue)
{
struct vector_private *vp = netdev_priv(dev);
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index 398006d27e40..db7d9d4e30d8 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -25,5 +25,4 @@ generic-y += switch_to.h
generic-y += topology.h
generic-y += trace_clock.h
generic-y += word-at-a-time.h
-generic-y += xor.h
generic-y += kprobes.h
diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S
index 7145ce699982..eca6c452a41b 100644
--- a/arch/um/include/asm/common.lds.S
+++ b/arch/um/include/asm/common.lds.S
@@ -82,8 +82,8 @@
__preinit_array_end = .;
}
.init_array : {
- /* dummy - we call this ourselves */
__init_array_start = .;
+ *(.init_array)
__init_array_end = .;
}
.fini_array : {
diff --git a/arch/um/include/asm/ptrace-generic.h b/arch/um/include/asm/ptrace-generic.h
index 81c647ef9c6c..adf91ef553ae 100644
--- a/arch/um/include/asm/ptrace-generic.h
+++ b/arch/um/include/asm/ptrace-generic.h
@@ -36,7 +36,7 @@ extern long subarch_ptrace(struct task_struct *child, long request,
extern unsigned long getreg(struct task_struct *child, int regno);
extern int putreg(struct task_struct *child, int regno, unsigned long value);
-extern int arch_copy_tls(struct task_struct *new);
+extern int arch_set_tls(struct task_struct *new, unsigned long tls);
extern void clear_flushed_tls(struct task_struct *task);
extern int syscall_trace_enter(struct pt_regs *regs);
extern void syscall_trace_leave(struct pt_regs *regs);
diff --git a/arch/um/include/asm/vmalloc.h b/arch/um/include/asm/vmalloc.h
new file mode 100644
index 000000000000..9a7b9ed93733
--- /dev/null
+++ b/arch/um/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_UM_VMALLOC_H
+#define _ASM_UM_VMALLOC_H
+
+#endif /* _ASM_UM_VMALLOC_H */
diff --git a/arch/um/include/asm/xor.h b/arch/um/include/asm/xor.h
new file mode 100644
index 000000000000..7a3208c47cfc
--- /dev/null
+++ b/arch/um/include/asm/xor.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm-generic/xor.h>
+#include <shared/timer-internal.h>
+
+/* pick an arbitrary one - measuring isn't possible with inf-cpu */
+#define XOR_SELECT_TEMPLATE(x) \
+ (time_travel_mode == TT_MODE_INFCPU ? &xor_block_8regs : NULL)
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 506bcd1bca68..0f30204b6afa 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -150,7 +150,7 @@ extern int os_sync_file(int fd);
extern int os_file_size(const char *file, unsigned long long *size_out);
extern int os_pread_file(int fd, void *buf, int len, unsigned long long offset);
extern int os_pwrite_file(int fd, const void *buf, int count, unsigned long long offset);
-extern int os_file_modtime(const char *file, unsigned long *modtime);
+extern int os_file_modtime(const char *file, long long *modtime);
extern int os_pipe(int *fd, int stream, int close_on_exec);
extern int os_set_fd_async(int fd);
extern int os_clear_fd_async(int fd);
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index c69d69ee96be..f5001481010c 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -103,6 +103,7 @@ SECTIONS
be empty, which isn't pretty. */
. = ALIGN(32 / 8);
.preinit_array : { *(.preinit_array) }
+ .init_array : { *(.init_array) }
.fini_array : { *(.fini_array) }
.data : {
INIT_TASK_DATA(KERNEL_STACK_SIZE)
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 263a8f069133..17045e7211bf 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -153,8 +153,8 @@ void fork_handler(void)
userspace(&current->thread.regs.regs, current_thread_info()->aux_fp_regs);
}
-int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg, struct task_struct * p)
+int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
+ unsigned long arg, struct task_struct * p, unsigned long tls)
{
void (*handler)(void);
int kthread = current->flags & PF_KTHREAD;
@@ -188,7 +188,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
* Set a new TLS for the child thread?
*/
if (clone_flags & CLONE_SETTLS)
- ret = arch_copy_tls(p);
+ ret = arch_set_tls(p, tls);
}
return ret;
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index 5133e3afb96f..fbda10535dab 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -341,7 +341,7 @@ int os_file_size(const char *file, unsigned long long *size_out)
return 0;
}
-int os_file_modtime(const char *file, unsigned long *modtime)
+int os_file_modtime(const char *file, long long *modtime)
{
struct uml_stat buf;
int err;
diff --git a/arch/unicore32/include/asm/io.h b/arch/unicore32/include/asm/io.h
index 4b460e01acfa..3ca74e1cde7d 100644
--- a/arch/unicore32/include/asm/io.h
+++ b/arch/unicore32/include/asm/io.h
@@ -31,7 +31,6 @@ extern void __uc32_iounmap(volatile void __iomem *addr);
*
*/
#define ioremap(cookie, size) __uc32_ioremap(cookie, size)
-#define ioremap_nocache(cookie, size) __uc32_ioremap(cookie, size)
#define iounmap(cookie) __uc32_iounmap(cookie)
#define readb_relaxed readb
diff --git a/arch/unicore32/include/asm/vmalloc.h b/arch/unicore32/include/asm/vmalloc.h
new file mode 100644
index 000000000000..054435818a14
--- /dev/null
+++ b/arch/unicore32/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_UNICORE32_VMALLOC_H
+#define _ASM_UNICORE32_VMALLOC_H
+
+#endif /* _ASM_UNICORE32_VMALLOC_H */
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 95ae3b54df68..0c4242a5ee1d 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -270,8 +270,6 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_VT
#if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
#endif
#endif
early_trap_init();
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5e8949953660..a283336bb5d5 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -93,10 +93,11 @@ config X86
select ARCH_USE_QUEUED_RWLOCKS
select ARCH_USE_QUEUED_SPINLOCKS
select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
+ select ARCH_WANT_DEFAULT_BPF_JIT if X86_64
select ARCH_WANTS_DYNAMIC_TASK_STRUCT
select ARCH_WANT_HUGE_PMD_SHARE
select ARCH_WANTS_THP_SWAP if X86_64
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select CLKEVT_I8253
select CLOCKSOURCE_VALIDATE_LAST_CYCLE
select CLOCKSOURCE_WATCHDOG
@@ -124,6 +125,7 @@ config X86
select GENERIC_STRNLEN_USER
select GENERIC_TIME_VSYSCALL
select GENERIC_GETTIMEOFDAY
+ select GENERIC_VDSO_TIME_NS
select GUP_GET_PTE_LOW_HIGH if X86_PAE
select HARDLOCKUP_CHECK_TIMESTAMP if X86_64
select HAVE_ACPI_APEI if ACPI
@@ -439,8 +441,8 @@ config X86_MPPARSE
(esp with 64bit cpus) with acpi support, MADT and DSDT will override it
config GOLDFISH
- def_bool y
- depends on X86_GOLDFISH
+ def_bool y
+ depends on X86_GOLDFISH
config RETPOLINE
bool "Avoid speculative indirect branches in kernel"
@@ -456,6 +458,7 @@ config X86_CPU_RESCTRL
bool "x86 CPU resource control support"
depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
select KERNFS
+ select PROC_CPU_RESCTRL if PROC_FS
help
Enable x86 CPU resource control support.
@@ -477,7 +480,7 @@ config X86_BIGSMP
bool "Support for big SMP systems with more than 8 CPUs"
depends on SMP
---help---
- This option is needed for the systems that have more than 8 CPUs
+ This option is needed for the systems that have more than 8 CPUs.
config X86_EXTENDED_PLATFORM
bool "Support for extended (non-PC) x86 platforms"
@@ -561,9 +564,9 @@ config X86_UV
# Please maintain the alphabetic order if and when there are additions
config X86_GOLDFISH
- bool "Goldfish (Virtual Platform)"
- depends on X86_EXTENDED_PLATFORM
- ---help---
+ bool "Goldfish (Virtual Platform)"
+ depends on X86_EXTENDED_PLATFORM
+ ---help---
Enable support for the Goldfish virtual platform used primarily
for Android development. Unless you are building for the Android
Goldfish emulator say N here.
@@ -806,9 +809,9 @@ config KVM_GUEST
timing infrastructure such as time of day, and system time
config ARCH_CPUIDLE_HALTPOLL
- def_bool n
- prompt "Disable host haltpoll when loading haltpoll driver"
- help
+ def_bool n
+ prompt "Disable host haltpoll when loading haltpoll driver"
+ help
If virtualized under KVM, disable host haltpoll.
config PVH
@@ -887,16 +890,16 @@ config HPET_EMULATE_RTC
depends on HPET_TIMER && (RTC=y || RTC=m || RTC_DRV_CMOS=m || RTC_DRV_CMOS=y)
config APB_TIMER
- def_bool y if X86_INTEL_MID
- prompt "Intel MID APB Timer Support" if X86_INTEL_MID
- select DW_APB_TIMER
- depends on X86_INTEL_MID && SFI
- help
- APB timer is the replacement for 8254, HPET on X86 MID platforms.
- The APBT provides a stable time base on SMP
- systems, unlike the TSC, but it is more expensive to access,
- as it is off-chip. APB timers are always running regardless of CPU
- C states, they are used as per CPU clockevent device when possible.
+ def_bool y if X86_INTEL_MID
+ prompt "Intel MID APB Timer Support" if X86_INTEL_MID
+ select DW_APB_TIMER
+ depends on X86_INTEL_MID && SFI
+ help
+ APB timer is the replacement for 8254, HPET on X86 MID platforms.
+ The APBT provides a stable time base on SMP
+ systems, unlike the TSC, but it is more expensive to access,
+ as it is off-chip. APB timers are always running regardless of CPU
+ C states, they are used as per CPU clockevent device when possible.
# Mark as expert because too many people got it wrong.
# The code disables itself when not needed.
@@ -1035,8 +1038,8 @@ config SCHED_MC_PRIO
If unsure say Y here.
config UP_LATE_INIT
- def_bool y
- depends on !SMP && X86_LOCAL_APIC
+ def_bool y
+ depends on !SMP && X86_LOCAL_APIC
config X86_UP_APIC
bool "Local APIC support on uniprocessors" if !PCI_MSI
@@ -1185,8 +1188,8 @@ config X86_LEGACY_VM86
If unsure, say N here.
config VM86
- bool
- default X86_LEGACY_VM86
+ bool
+ default X86_LEGACY_VM86
config X86_16BIT
bool "Enable support for 16-bit segments" if EXPERT
@@ -1207,10 +1210,10 @@ config X86_ESPFIX64
depends on X86_16BIT && X86_64
config X86_VSYSCALL_EMULATION
- bool "Enable vsyscall emulation" if EXPERT
- default y
- depends on X86_64
- ---help---
+ bool "Enable vsyscall emulation" if EXPERT
+ default y
+ depends on X86_64
+ ---help---
This enables emulation of the legacy vsyscall page. Disabling
it is roughly equivalent to booting with vsyscall=none, except
that it will also disable the helpful warning if a program
@@ -1512,7 +1515,7 @@ config X86_CPA_STATISTICS
bool "Enable statistic for Change Page Attribute"
depends on DEBUG_FS
---help---
- Expose statistics about the Change Page Attribute mechanims, which
+ Expose statistics about the Change Page Attribute mechanism, which
helps to determine the effectiveness of preserving large and huge
page mappings when mapping protections are changed.
@@ -1543,12 +1546,12 @@ config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
# Common NUMA Features
config NUMA
- bool "Numa Memory Allocation and Scheduler Support"
+ bool "NUMA Memory Allocation and Scheduler Support"
depends on SMP
depends on X86_64 || (X86_32 && HIGHMEM64G && X86_BIGSMP)
default y if X86_BIGSMP
---help---
- Enable NUMA (Non Uniform Memory Access) support.
+ Enable NUMA (Non-Uniform Memory Access) support.
The kernel will try to allocate memory used by a CPU on the
local memory controller of the CPU and add some more
@@ -1648,9 +1651,9 @@ config ARCH_PROC_KCORE_TEXT
depends on X86_64 && PROC_KCORE
config ILLEGAL_POINTER_VALUE
- hex
- default 0 if X86_32
- default 0xdead000000000000 if X86_64
+ hex
+ default 0 if X86_32
+ default 0xdead000000000000 if X86_64
config X86_PMEM_LEGACY_DEVICE
bool
@@ -1991,11 +1994,12 @@ config EFI
platforms.
config EFI_STUB
- bool "EFI stub support"
- depends on EFI && !X86_USE_3DNOW
- select RELOCATABLE
- ---help---
- This kernel feature allows a bzImage to be loaded directly
+ bool "EFI stub support"
+ depends on EFI && !X86_USE_3DNOW
+ depends on $(cc-option,-mabi=ms) || X86_32
+ select RELOCATABLE
+ ---help---
+ This kernel feature allows a bzImage to be loaded directly
by EFI firmware without the use of a bootloader.
See Documentation/admin-guide/efi-stub.rst for more information.
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index af9c967782f6..bc3a497c029c 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -387,6 +387,14 @@ config X86_DEBUGCTLMSR
def_bool y
depends on !(MK6 || MWINCHIPC6 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486SX || M486) && !UML
+config IA32_FEAT_CTL
+ def_bool y
+ depends on CPU_SUP_INTEL || CPU_SUP_CENTAUR || CPU_SUP_ZHAOXIN
+
+config X86_VMX_FEATURE_NAMES
+ def_bool y
+ depends on IA32_FEAT_CTL && X86_FEATURE_NAMES
+
menuconfig PROCESSOR_SELECT
bool "Supported processor vendors" if EXPERT
---help---
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 95410d6ee2ff..748b6d28a91d 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -88,7 +88,7 @@ $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
-sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p'
+sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p'
quiet_cmd_zoffset = ZOFFSET $@
cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index aa976adb7094..56aa5fa0a66b 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -89,7 +89,7 @@ vmlinux-objs-$(CONFIG_ACPI) += $(obj)/acpi.o
$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
-vmlinux-objs-$(CONFIG_EFI_STUB) += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o \
+vmlinux-objs-$(CONFIG_EFI_STUB) += $(obj)/eboot.o \
$(objtree)/drivers/firmware/efi/libstub/lib.a
vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o
@@ -103,7 +103,7 @@ vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o
quiet_cmd_check_data_rel = DATAREL $@
define cmd_check_data_rel
for obj in $(filter %.o,$^); do \
- ${CROSS_COMPILE}readelf -S $$obj | grep -qF .rel.local && { \
+ $(READELF) -S $$obj | grep -qF .rel.local && { \
echo "error: $$obj has data relocations!" >&2; \
exit 1; \
} || true; \
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 72b08fde6de6..287393d725f0 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -6,6 +6,8 @@
*
* ----------------------------------------------------------------------- */
+#pragma GCC visibility push(hidden)
+
#include <linux/efi.h>
#include <linux/pci.h>
@@ -19,32 +21,18 @@
#include "eboot.h"
static efi_system_table_t *sys_table;
+extern const bool efi_is64;
-static struct efi_config *efi_early;
-
-__pure const struct efi_config *__efi_early(void)
+__pure efi_system_table_t *efi_system_table(void)
{
- return efi_early;
+ return sys_table;
}
-#define BOOT_SERVICES(bits) \
-static void setup_boot_services##bits(struct efi_config *c) \
-{ \
- efi_system_table_##bits##_t *table; \
- \
- table = (typeof(table))sys_table; \
- \
- c->runtime_services = table->runtime; \
- c->boot_services = table->boottime; \
- c->text_output = table->con_out; \
-}
-BOOT_SERVICES(32);
-BOOT_SERVICES(64);
-
-void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str)
+__attribute_const__ bool efi_is_64bit(void)
{
- efi_call_proto(efi_simple_text_output_protocol, output_string,
- efi_early->text_output, str);
+ if (IS_ENABLED(CONFIG_EFI_MIXED))
+ return efi_is64;
+ return IS_ENABLED(CONFIG_X86_64);
}
static efi_status_t
@@ -63,17 +51,17 @@ preserve_pci_rom_image(efi_pci_io_protocol_t *pci, struct pci_setup_rom **__rom)
* large romsize. The UEFI spec limits the size of option ROMs to 16
* MiB so we reject any ROMs over 16 MiB in size to catch this.
*/
- romimage = (void *)(unsigned long)efi_table_attr(efi_pci_io_protocol,
- romimage, pci);
- romsize = efi_table_attr(efi_pci_io_protocol, romsize, pci);
+ romimage = efi_table_attr(pci, romimage);
+ romsize = efi_table_attr(pci, romsize);
if (!romimage || !romsize || romsize > SZ_16M)
return EFI_INVALID_PARAMETER;
size = romsize + sizeof(*rom);
- status = efi_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom);
+ status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size,
+ (void **)&rom);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to allocate memory for 'rom'\n");
+ efi_printk("Failed to allocate memory for 'rom'\n");
return status;
}
@@ -85,27 +73,24 @@ preserve_pci_rom_image(efi_pci_io_protocol_t *pci, struct pci_setup_rom **__rom)
rom->pcilen = pci->romsize;
*__rom = rom;
- status = efi_call_proto(efi_pci_io_protocol, pci.read, pci,
- EfiPciIoWidthUint16, PCI_VENDOR_ID, 1,
- &rom->vendor);
+ status = efi_call_proto(pci, pci.read, EfiPciIoWidthUint16,
+ PCI_VENDOR_ID, 1, &rom->vendor);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to read rom->vendor\n");
+ efi_printk("Failed to read rom->vendor\n");
goto free_struct;
}
- status = efi_call_proto(efi_pci_io_protocol, pci.read, pci,
- EfiPciIoWidthUint16, PCI_DEVICE_ID, 1,
- &rom->devid);
+ status = efi_call_proto(pci, pci.read, EfiPciIoWidthUint16,
+ PCI_DEVICE_ID, 1, &rom->devid);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to read rom->devid\n");
+ efi_printk("Failed to read rom->devid\n");
goto free_struct;
}
- status = efi_call_proto(efi_pci_io_protocol, get_location, pci,
- &rom->segment, &rom->bus, &rom->device,
- &rom->function);
+ status = efi_call_proto(pci, get_location, &rom->segment, &rom->bus,
+ &rom->device, &rom->function);
if (status != EFI_SUCCESS)
goto free_struct;
@@ -114,7 +99,7 @@ preserve_pci_rom_image(efi_pci_io_protocol_t *pci, struct pci_setup_rom **__rom)
return status;
free_struct:
- efi_call_early(free_pool, rom);
+ efi_bs_call(free_pool, rom);
return status;
}
@@ -133,27 +118,24 @@ static void setup_efi_pci(struct boot_params *params)
void **pci_handle = NULL;
efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID;
unsigned long size = 0;
- unsigned long nr_pci;
struct setup_data *data;
+ efi_handle_t h;
int i;
- status = efi_call_early(locate_handle,
- EFI_LOCATE_BY_PROTOCOL,
- &pci_proto, NULL, &size, pci_handle);
+ status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
+ &pci_proto, NULL, &size, pci_handle);
if (status == EFI_BUFFER_TOO_SMALL) {
- status = efi_call_early(allocate_pool,
- EFI_LOADER_DATA,
- size, (void **)&pci_handle);
+ status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size,
+ (void **)&pci_handle);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to allocate memory for 'pci_handle'\n");
+ efi_printk("Failed to allocate memory for 'pci_handle'\n");
return;
}
- status = efi_call_early(locate_handle,
- EFI_LOCATE_BY_PROTOCOL, &pci_proto,
- NULL, &size, pci_handle);
+ status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
+ &pci_proto, NULL, &size, pci_handle);
}
if (status != EFI_SUCCESS)
@@ -164,15 +146,12 @@ static void setup_efi_pci(struct boot_params *params)
while (data && data->next)
data = (struct setup_data *)(unsigned long)data->next;
- nr_pci = size / (efi_is_64bit() ? sizeof(u64) : sizeof(u32));
- for (i = 0; i < nr_pci; i++) {
+ for_each_efi_handle(h, pci_handle, size, i) {
efi_pci_io_protocol_t *pci = NULL;
struct pci_setup_rom *rom;
- status = efi_call_early(handle_protocol,
- efi_is_64bit() ? ((u64 *)pci_handle)[i]
- : ((u32 *)pci_handle)[i],
- &pci_proto, (void **)&pci);
+ status = efi_bs_call(handle_protocol, h, &pci_proto,
+ (void **)&pci);
if (status != EFI_SUCCESS || !pci)
continue;
@@ -189,7 +168,7 @@ static void setup_efi_pci(struct boot_params *params)
}
free_handle:
- efi_call_early(free_pool, pci_handle);
+ efi_bs_call(free_pool, pci_handle);
}
static void retrieve_apple_device_properties(struct boot_params *boot_params)
@@ -198,34 +177,34 @@ static void retrieve_apple_device_properties(struct boot_params *boot_params)
struct setup_data *data, *new;
efi_status_t status;
u32 size = 0;
- void *p;
+ apple_properties_protocol_t *p;
- status = efi_call_early(locate_protocol, &guid, NULL, &p);
+ status = efi_bs_call(locate_protocol, &guid, NULL, (void **)&p);
if (status != EFI_SUCCESS)
return;
- if (efi_table_attr(apple_properties_protocol, version, p) != 0x10000) {
- efi_printk(sys_table, "Unsupported properties proto version\n");
+ if (efi_table_attr(p, version) != 0x10000) {
+ efi_printk("Unsupported properties proto version\n");
return;
}
- efi_call_proto(apple_properties_protocol, get_all, p, NULL, &size);
+ efi_call_proto(p, get_all, NULL, &size);
if (!size)
return;
do {
- status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
- size + sizeof(struct setup_data), &new);
+ status = efi_bs_call(allocate_pool, EFI_LOADER_DATA,
+ size + sizeof(struct setup_data),
+ (void **)&new);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to allocate memory for 'properties'\n");
+ efi_printk("Failed to allocate memory for 'properties'\n");
return;
}
- status = efi_call_proto(apple_properties_protocol, get_all, p,
- new->data, &size);
+ status = efi_call_proto(p, get_all, new->data, &size);
if (status == EFI_BUFFER_TOO_SMALL)
- efi_call_early(free_pool, new);
+ efi_bs_call(free_pool, new);
} while (status == EFI_BUFFER_TOO_SMALL);
new->type = SETUP_APPLE_PROPERTIES;
@@ -247,7 +226,7 @@ static const efi_char16_t apple[] = L"Apple";
static void setup_quirks(struct boot_params *boot_params)
{
efi_char16_t *fw_vendor = (efi_char16_t *)(unsigned long)
- efi_table_attr(efi_system_table, fw_vendor, sys_table);
+ efi_table_attr(efi_system_table(), fw_vendor);
if (!memcmp(fw_vendor, apple, sizeof(apple))) {
if (IS_ENABLED(CONFIG_APPLE_PROPERTIES))
@@ -265,17 +244,16 @@ setup_uga(struct screen_info *si, efi_guid_t *uga_proto, unsigned long size)
u32 width, height;
void **uga_handle = NULL;
efi_uga_draw_protocol_t *uga = NULL, *first_uga;
- unsigned long nr_ugas;
+ efi_handle_t handle;
int i;
- status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
- size, (void **)&uga_handle);
+ status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size,
+ (void **)&uga_handle);
if (status != EFI_SUCCESS)
return status;
- status = efi_call_early(locate_handle,
- EFI_LOCATE_BY_PROTOCOL,
- uga_proto, NULL, &size, uga_handle);
+ status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
+ uga_proto, NULL, &size, uga_handle);
if (status != EFI_SUCCESS)
goto free_handle;
@@ -283,24 +261,20 @@ setup_uga(struct screen_info *si, efi_guid_t *uga_proto, unsigned long size)
width = 0;
first_uga = NULL;
- nr_ugas = size / (efi_is_64bit() ? sizeof(u64) : sizeof(u32));
- for (i = 0; i < nr_ugas; i++) {
+ for_each_efi_handle(handle, uga_handle, size, i) {
efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID;
u32 w, h, depth, refresh;
void *pciio;
- unsigned long handle = efi_is_64bit() ? ((u64 *)uga_handle)[i]
- : ((u32 *)uga_handle)[i];
- status = efi_call_early(handle_protocol, handle,
- uga_proto, (void **)&uga);
+ status = efi_bs_call(handle_protocol, handle, uga_proto,
+ (void **)&uga);
if (status != EFI_SUCCESS)
continue;
pciio = NULL;
- efi_call_early(handle_protocol, handle, &pciio_proto, &pciio);
+ efi_bs_call(handle_protocol, handle, &pciio_proto, &pciio);
- status = efi_call_proto(efi_uga_draw_protocol, get_mode, uga,
- &w, &h, &depth, &refresh);
+ status = efi_call_proto(uga, get_mode, &w, &h, &depth, &refresh);
if (status == EFI_SUCCESS && (!first_uga || pciio)) {
width = w;
height = h;
@@ -336,7 +310,7 @@ setup_uga(struct screen_info *si, efi_guid_t *uga_proto, unsigned long size)
si->rsvd_pos = 24;
free_handle:
- efi_call_early(free_pool, uga_handle);
+ efi_bs_call(free_pool, uga_handle);
return status;
}
@@ -355,37 +329,38 @@ void setup_graphics(struct boot_params *boot_params)
memset(si, 0, sizeof(*si));
size = 0;
- status = efi_call_early(locate_handle,
- EFI_LOCATE_BY_PROTOCOL,
- &graphics_proto, NULL, &size, gop_handle);
+ status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
+ &graphics_proto, NULL, &size, gop_handle);
if (status == EFI_BUFFER_TOO_SMALL)
- status = efi_setup_gop(NULL, si, &graphics_proto, size);
+ status = efi_setup_gop(si, &graphics_proto, size);
if (status != EFI_SUCCESS) {
size = 0;
- status = efi_call_early(locate_handle,
- EFI_LOCATE_BY_PROTOCOL,
- &uga_proto, NULL, &size, uga_handle);
+ status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL,
+ &uga_proto, NULL, &size, uga_handle);
if (status == EFI_BUFFER_TOO_SMALL)
setup_uga(si, &uga_proto, size);
}
}
+void startup_32(struct boot_params *boot_params);
+
+void __noreturn efi_stub_entry(efi_handle_t handle,
+ efi_system_table_t *sys_table_arg,
+ struct boot_params *boot_params);
+
/*
* Because the x86 boot code expects to be passed a boot_params we
* need to create one ourselves (usually the bootloader would create
* one for us).
- *
- * The caller is responsible for filling out ->code32_start in the
- * returned boot_params.
*/
-struct boot_params *make_boot_params(struct efi_config *c)
+efi_status_t __efiapi efi_pe_entry(efi_handle_t handle,
+ efi_system_table_t *sys_table_arg)
{
struct boot_params *boot_params;
struct apm_bios_info *bi;
struct setup_header *hdr;
efi_loaded_image_t *image;
- void *handle;
efi_guid_t proto = LOADED_IMAGE_PROTOCOL_GUID;
int options_size = 0;
efi_status_t status;
@@ -393,31 +368,22 @@ struct boot_params *make_boot_params(struct efi_config *c)
unsigned long ramdisk_addr;
unsigned long ramdisk_size;
- efi_early = c;
- sys_table = (efi_system_table_t *)(unsigned long)efi_early->table;
- handle = (void *)(unsigned long)efi_early->image_handle;
+ sys_table = sys_table_arg;
/* Check if we were booted by the EFI firmware */
if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
- return NULL;
-
- if (efi_is_64bit())
- setup_boot_services64(efi_early);
- else
- setup_boot_services32(efi_early);
+ return EFI_INVALID_PARAMETER;
- status = efi_call_early(handle_protocol, handle,
- &proto, (void *)&image);
+ status = efi_bs_call(handle_protocol, handle, &proto, (void *)&image);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to get handle for LOADED_IMAGE_PROTOCOL\n");
- return NULL;
+ efi_printk("Failed to get handle for LOADED_IMAGE_PROTOCOL\n");
+ return status;
}
- status = efi_low_alloc(sys_table, 0x4000, 1,
- (unsigned long *)&boot_params);
+ status = efi_low_alloc(0x4000, 1, (unsigned long *)&boot_params);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to allocate lowmem for boot params\n");
- return NULL;
+ efi_printk("Failed to allocate lowmem for boot params\n");
+ return status;
}
memset(boot_params, 0x0, 0x4000);
@@ -439,7 +405,7 @@ struct boot_params *make_boot_params(struct efi_config *c)
hdr->type_of_loader = 0x21;
/* Convert unicode cmdline to ascii */
- cmdline_ptr = efi_convert_cmdline(sys_table, image, &options_size);
+ cmdline_ptr = efi_convert_cmdline(image, &options_size);
if (!cmdline_ptr)
goto fail;
@@ -457,15 +423,15 @@ struct boot_params *make_boot_params(struct efi_config *c)
if (status != EFI_SUCCESS)
goto fail2;
- status = handle_cmdline_files(sys_table, image,
+ status = handle_cmdline_files(image,
(char *)(unsigned long)hdr->cmd_line_ptr,
"initrd=", hdr->initrd_addr_max,
&ramdisk_addr, &ramdisk_size);
if (status != EFI_SUCCESS &&
hdr->xloadflags & XLF_CAN_BE_LOADED_ABOVE_4G) {
- efi_printk(sys_table, "Trying to load files to higher address\n");
- status = handle_cmdline_files(sys_table, image,
+ efi_printk("Trying to load files to higher address\n");
+ status = handle_cmdline_files(image,
(char *)(unsigned long)hdr->cmd_line_ptr,
"initrd=", -1UL,
&ramdisk_addr, &ramdisk_size);
@@ -478,14 +444,17 @@ struct boot_params *make_boot_params(struct efi_config *c)
boot_params->ext_ramdisk_image = (u64)ramdisk_addr >> 32;
boot_params->ext_ramdisk_size = (u64)ramdisk_size >> 32;
- return boot_params;
+ hdr->code32_start = (u32)(unsigned long)startup_32;
+
+ efi_stub_entry(handle, sys_table, boot_params);
+ /* not reached */
fail2:
- efi_free(sys_table, options_size, hdr->cmd_line_ptr);
+ efi_free(options_size, hdr->cmd_line_ptr);
fail:
- efi_free(sys_table, 0x4000, (unsigned long)boot_params);
+ efi_free(0x4000, (unsigned long)boot_params);
- return NULL;
+ return status;
}
static void add_e820ext(struct boot_params *params,
@@ -620,13 +589,13 @@ static efi_status_t alloc_e820ext(u32 nr_desc, struct setup_data **e820ext,
sizeof(struct e820_entry) * nr_desc;
if (*e820ext) {
- efi_call_early(free_pool, *e820ext);
+ efi_bs_call(free_pool, *e820ext);
*e820ext = NULL;
*e820ext_size = 0;
}
- status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
- size, (void **)e820ext);
+ status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size,
+ (void **)e820ext);
if (status == EFI_SUCCESS)
*e820ext_size = size;
@@ -650,7 +619,7 @@ static efi_status_t allocate_e820(struct boot_params *params,
boot_map.key_ptr = NULL;
boot_map.buff_size = &buff_size;
- status = efi_get_memory_map(sys_table, &boot_map);
+ status = efi_get_memory_map(&boot_map);
if (status != EFI_SUCCESS)
return status;
@@ -672,8 +641,7 @@ struct exit_boot_struct {
struct efi_info *efi;
};
-static efi_status_t exit_boot_func(efi_system_table_t *sys_table_arg,
- struct efi_boot_memmap *map,
+static efi_status_t exit_boot_func(struct efi_boot_memmap *map,
void *priv)
{
const char *signature;
@@ -683,14 +651,14 @@ static efi_status_t exit_boot_func(efi_system_table_t *sys_table_arg,
: EFI32_LOADER_SIGNATURE;
memcpy(&p->efi->efi_loader_signature, signature, sizeof(__u32));
- p->efi->efi_systab = (unsigned long)sys_table_arg;
+ p->efi->efi_systab = (unsigned long)efi_system_table();
p->efi->efi_memdesc_size = *map->desc_size;
p->efi->efi_memdesc_version = *map->desc_ver;
p->efi->efi_memmap = (unsigned long)*map->map;
p->efi->efi_memmap_size = *map->map_size;
#ifdef CONFIG_X86_64
- p->efi->efi_systab_hi = (unsigned long)sys_table_arg >> 32;
+ p->efi->efi_systab_hi = (unsigned long)efi_system_table() >> 32;
p->efi->efi_memmap_hi = (unsigned long)*map->map >> 32;
#endif
@@ -722,8 +690,7 @@ static efi_status_t exit_boot(struct boot_params *boot_params, void *handle)
return status;
/* Might as well exit boot services now */
- status = efi_exit_boot_services(sys_table, handle, &map, &priv,
- exit_boot_func);
+ status = efi_exit_boot_services(handle, &map, &priv, exit_boot_func);
if (status != EFI_SUCCESS)
return status;
@@ -741,33 +708,22 @@ static efi_status_t exit_boot(struct boot_params *boot_params, void *handle)
* On success we return a pointer to a boot_params structure, and NULL
* on failure.
*/
-struct boot_params *
-efi_main(struct efi_config *c, struct boot_params *boot_params)
+struct boot_params *efi_main(efi_handle_t handle,
+ efi_system_table_t *sys_table_arg,
+ struct boot_params *boot_params)
{
struct desc_ptr *gdt = NULL;
struct setup_header *hdr = &boot_params->hdr;
efi_status_t status;
struct desc_struct *desc;
- void *handle;
- efi_system_table_t *_table;
unsigned long cmdline_paddr;
- efi_early = c;
-
- _table = (efi_system_table_t *)(unsigned long)efi_early->table;
- handle = (void *)(unsigned long)efi_early->image_handle;
-
- sys_table = _table;
+ sys_table = sys_table_arg;
/* Check if we were booted by the EFI firmware */
if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE)
goto fail;
- if (efi_is_64bit())
- setup_boot_services64(efi_early);
- else
- setup_boot_services32(efi_early);
-
/*
* make_boot_params() may have been called before efi_main(), in which
* case this is the second time we parse the cmdline. This is ok,
@@ -782,14 +738,14 @@ efi_main(struct efi_config *c, struct boot_params *boot_params)
* otherwise we ask the BIOS.
*/
if (boot_params->secure_boot == efi_secureboot_mode_unset)
- boot_params->secure_boot = efi_get_secureboot(sys_table);
+ boot_params->secure_boot = efi_get_secureboot();
/* Ask the firmware to clear memory on unclean shutdown */
- efi_enable_reset_attack_mitigation(sys_table);
+ efi_enable_reset_attack_mitigation();
- efi_random_get_seed(sys_table);
+ efi_random_get_seed();
- efi_retrieve_tpm2_eventlog(sys_table);
+ efi_retrieve_tpm2_eventlog();
setup_graphics(boot_params);
@@ -797,18 +753,17 @@ efi_main(struct efi_config *c, struct boot_params *boot_params)
setup_quirks(boot_params);
- status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
- sizeof(*gdt), (void **)&gdt);
+ status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, sizeof(*gdt),
+ (void **)&gdt);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to allocate memory for 'gdt' structure\n");
+ efi_printk("Failed to allocate memory for 'gdt' structure\n");
goto fail;
}
gdt->size = 0x800;
- status = efi_low_alloc(sys_table, gdt->size, 8,
- (unsigned long *)&gdt->address);
+ status = efi_low_alloc(gdt->size, 8, (unsigned long *)&gdt->address);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "Failed to allocate memory for 'gdt'\n");
+ efi_printk("Failed to allocate memory for 'gdt'\n");
goto fail;
}
@@ -818,13 +773,13 @@ efi_main(struct efi_config *c, struct boot_params *boot_params)
*/
if (hdr->pref_address != hdr->code32_start) {
unsigned long bzimage_addr = hdr->code32_start;
- status = efi_relocate_kernel(sys_table, &bzimage_addr,
+ status = efi_relocate_kernel(&bzimage_addr,
hdr->init_size, hdr->init_size,
hdr->pref_address,
hdr->kernel_alignment,
LOAD_PHYSICAL_ADDR);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "efi_relocate_kernel() failed!\n");
+ efi_printk("efi_relocate_kernel() failed!\n");
goto fail;
}
@@ -834,7 +789,7 @@ efi_main(struct efi_config *c, struct boot_params *boot_params)
status = exit_boot(boot_params, handle);
if (status != EFI_SUCCESS) {
- efi_printk(sys_table, "exit_boot() failed!\n");
+ efi_printk("exit_boot() failed!\n");
goto fail;
}
@@ -927,7 +882,8 @@ efi_main(struct efi_config *c, struct boot_params *boot_params)
return boot_params;
fail:
- efi_printk(sys_table, "efi_main() failed!\n");
+ efi_printk("efi_main() failed!\n");
- return NULL;
+ for (;;)
+ asm("hlt");
}
diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
index 8297387c4676..99f35343d443 100644
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -12,22 +12,20 @@
#define DESC_TYPE_CODE_DATA (1 << 0)
-typedef struct {
- u32 get_mode;
- u32 set_mode;
- u32 blt;
-} efi_uga_draw_protocol_32_t;
+typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t;
-typedef struct {
- u64 get_mode;
- u64 set_mode;
- u64 blt;
-} efi_uga_draw_protocol_64_t;
-
-typedef struct {
- void *get_mode;
- void *set_mode;
- void *blt;
-} efi_uga_draw_protocol_t;
+union efi_uga_draw_protocol {
+ struct {
+ efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *,
+ u32*, u32*, u32*, u32*);
+ void *set_mode;
+ void *blt;
+ };
+ struct {
+ u32 get_mode;
+ u32 set_mode;
+ u32 blt;
+ } mixed_mode;
+};
#endif /* BOOT_COMPRESSED_EBOOT_H */
diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
deleted file mode 100644
index ed6c351d34ed..000000000000
--- a/arch/x86/boot/compressed/efi_stub_32.S
+++ /dev/null
@@ -1,87 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * EFI call stub for IA32.
- *
- * This stub allows us to make EFI calls in physical mode with interrupts
- * turned off. Note that this implementation is different from the one in
- * arch/x86/platform/efi/efi_stub_32.S because we're _already_ in physical
- * mode at this point.
- */
-
-#include <linux/linkage.h>
-#include <asm/page_types.h>
-
-/*
- * efi_call_phys(void *, ...) is a function with variable parameters.
- * All the callers of this function assure that all the parameters are 4-bytes.
- */
-
-/*
- * In gcc calling convention, EBX, ESP, EBP, ESI and EDI are all callee save.
- * So we'd better save all of them at the beginning of this function and restore
- * at the end no matter how many we use, because we can not assure EFI runtime
- * service functions will comply with gcc calling convention, too.
- */
-
-.text
-SYM_FUNC_START(efi_call_phys)
- /*
- * 0. The function can only be called in Linux kernel. So CS has been
- * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
- * the values of these registers are the same. And, the corresponding
- * GDT entries are identical. So I will do nothing about segment reg
- * and GDT, but change GDT base register in prelog and epilog.
- */
-
- /*
- * 1. Because we haven't been relocated by this point we need to
- * use relative addressing.
- */
- call 1f
-1: popl %edx
- subl $1b, %edx
-
- /*
- * 2. Now on the top of stack is the return
- * address in the caller of efi_call_phys(), then parameter 1,
- * parameter 2, ..., param n. To make things easy, we save the return
- * address of efi_call_phys in a global variable.
- */
- popl %ecx
- movl %ecx, saved_return_addr(%edx)
- /* get the function pointer into ECX*/
- popl %ecx
- movl %ecx, efi_rt_function_ptr(%edx)
-
- /*
- * 3. Call the physical function.
- */
- call *%ecx
-
- /*
- * 4. Balance the stack. And because EAX contain the return value,
- * we'd better not clobber it. We need to calculate our address
- * again because %ecx and %edx are not preserved across EFI function
- * calls.
- */
- call 1f
-1: popl %edx
- subl $1b, %edx
-
- movl efi_rt_function_ptr(%edx), %ecx
- pushl %ecx
-
- /*
- * 10. Push the saved return address onto the stack and return.
- */
- movl saved_return_addr(%edx), %ecx
- pushl %ecx
- ret
-SYM_FUNC_END(efi_call_phys)
-.previous
-
-.data
-saved_return_addr:
- .long 0
-efi_rt_function_ptr:
- .long 0
diff --git a/arch/x86/boot/compressed/efi_stub_64.S b/arch/x86/boot/compressed/efi_stub_64.S
deleted file mode 100644
index 99494dff2113..000000000000
--- a/arch/x86/boot/compressed/efi_stub_64.S
+++ /dev/null
@@ -1,5 +0,0 @@
-#include <asm/segment.h>
-#include <asm/msr.h>
-#include <asm/processor-flags.h>
-
-#include "../../platform/efi/efi_stub_64.S"
diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index 593913692d16..8fb7f6799c52 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -10,7 +10,7 @@
* needs to be able to service interrupts.
*
* On the plus side, we don't have to worry about mangling 64-bit
- * addresses into 32-bits because we're executing with an identify
+ * addresses into 32-bits because we're executing with an identity
* mapped pagetable and haven't transitioned to 64-bit virtual addresses
* yet.
*/
@@ -23,16 +23,13 @@
.code64
.text
-SYM_FUNC_START(efi64_thunk)
+SYM_FUNC_START(__efi64_thunk)
push %rbp
push %rbx
- subq $8, %rsp
- leaq efi_exit32(%rip), %rax
- movl %eax, 4(%rsp)
- leaq efi_gdt64(%rip), %rax
- movl %eax, (%rsp)
- movl %eax, 2(%rax) /* Fixup the gdt base address */
+ leaq 1f(%rip), %rbp
+ leaq efi_gdt64(%rip), %rbx
+ movl %ebx, 2(%rbx) /* Fixup the gdt base address */
movl %ds, %eax
push %rax
@@ -48,15 +45,10 @@ SYM_FUNC_START(efi64_thunk)
movl %esi, 0x0(%rsp)
movl %edx, 0x4(%rsp)
movl %ecx, 0x8(%rsp)
- movq %r8, %rsi
- movl %esi, 0xc(%rsp)
- movq %r9, %rsi
- movl %esi, 0x10(%rsp)
+ movl %r8d, 0xc(%rsp)
+ movl %r9d, 0x10(%rsp)
- sgdt save_gdt(%rip)
-
- leaq 1f(%rip), %rbx
- movq %rbx, func_rt_ptr(%rip)
+ sgdt 0x14(%rsp)
/*
* Switch to gdt with 32-bit segments. This is the firmware GDT
@@ -71,9 +63,9 @@ SYM_FUNC_START(efi64_thunk)
pushq %rax
lretq
-1: addq $32, %rsp
-
- lgdt save_gdt(%rip)
+1: lgdt 0x14(%rsp)
+ addq $32, %rsp
+ movq %rdi, %rax
pop %rbx
movl %ebx, %ss
@@ -85,26 +77,13 @@ SYM_FUNC_START(efi64_thunk)
/*
* Convert 32-bit status code into 64-bit.
*/
- test %rax, %rax
- jz 1f
- movl %eax, %ecx
- andl $0x0fffffff, %ecx
- andl $0xf0000000, %eax
- shl $32, %rax
- or %rcx, %rax
-1:
- addq $8, %rsp
+ roll $1, %eax
+ rorq $1, %rax
+
pop %rbx
pop %rbp
ret
-SYM_FUNC_END(efi64_thunk)
-
-SYM_FUNC_START_LOCAL(efi_exit32)
- movq func_rt_ptr(%rip), %rax
- push %rax
- mov %rdi, %rax
- ret
-SYM_FUNC_END(efi_exit32)
+SYM_FUNC_END(__efi64_thunk)
.code32
/*
@@ -144,9 +123,7 @@ SYM_FUNC_START_LOCAL(efi_enter32)
*/
cli
- movl 56(%esp), %eax
- movl %eax, 2(%eax)
- lgdtl (%eax)
+ lgdtl (%ebx)
movl %cr4, %eax
btsl $(X86_CR4_PAE_BIT), %eax
@@ -163,9 +140,8 @@ SYM_FUNC_START_LOCAL(efi_enter32)
xorl %eax, %eax
lldt %ax
- movl 60(%esp), %eax
pushl $__KERNEL_CS
- pushl %eax
+ pushl %ebp
/* Enable paging */
movl %cr0, %eax
@@ -181,13 +157,6 @@ SYM_DATA_START(efi32_boot_gdt)
.quad 0
SYM_DATA_END(efi32_boot_gdt)
-SYM_DATA_START_LOCAL(save_gdt)
- .word 0
- .quad 0
-SYM_DATA_END(save_gdt)
-
-SYM_DATA_LOCAL(func_rt_ptr, .quad 0)
-
SYM_DATA_START(efi_gdt64)
.word efi_gdt64_end - efi_gdt64
.long 0 /* Filled out by user */
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index f2dfd6d083ef..73f17d0544dd 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -145,67 +145,16 @@ SYM_FUNC_START(startup_32)
SYM_FUNC_END(startup_32)
#ifdef CONFIG_EFI_STUB
-/*
- * We don't need the return address, so set up the stack so efi_main() can find
- * its arguments.
- */
-SYM_FUNC_START(efi_pe_entry)
- add $0x4, %esp
-
- call 1f
-1: popl %esi
- subl $1b, %esi
-
- popl %ecx
- movl %ecx, efi32_config(%esi) /* Handle */
- popl %ecx
- movl %ecx, efi32_config+8(%esi) /* EFI System table pointer */
-
- /* Relocate efi_config->call() */
- leal efi32_config(%esi), %eax
- add %esi, 40(%eax)
- pushl %eax
-
- call make_boot_params
- cmpl $0, %eax
- je fail
- movl %esi, BP_code32_start(%eax)
- popl %ecx
- pushl %eax
- pushl %ecx
- jmp 2f /* Skip efi_config initialization */
-SYM_FUNC_END(efi_pe_entry)
-
SYM_FUNC_START(efi32_stub_entry)
+SYM_FUNC_START_ALIAS(efi_stub_entry)
add $0x4, %esp
- popl %ecx
- popl %edx
-
- call 1f
-1: popl %esi
- subl $1b, %esi
-
- movl %ecx, efi32_config(%esi) /* Handle */
- movl %edx, efi32_config+8(%esi) /* EFI System table pointer */
-
- /* Relocate efi_config->call() */
- leal efi32_config(%esi), %eax
- add %esi, 40(%eax)
- pushl %eax
-2:
call efi_main
- cmpl $0, %eax
movl %eax, %esi
- jne 2f
-fail:
- /* EFI init failed, so hang. */
- hlt
- jmp fail
-2:
movl BP_code32_start(%esi), %eax
leal startup_32(%eax), %eax
jmp *%eax
SYM_FUNC_END(efi32_stub_entry)
+SYM_FUNC_END_ALIAS(efi_stub_entry)
#endif
.text
@@ -240,11 +189,9 @@ SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
/* push arguments for extract_kernel: */
pushl $z_output_len /* decompressed length, end of relocs */
- movl BP_init_size(%esi), %eax
- subl $_end, %eax
- movl %ebx, %ebp
- subl %eax, %ebp
- pushl %ebp /* output address */
+ leal _end(%ebx), %eax
+ subl BP_init_size(%esi), %eax
+ pushl %eax /* output address */
pushl $z_input_len /* input_len */
leal input_data(%ebx), %eax
@@ -262,15 +209,6 @@ SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
jmp *%eax
SYM_FUNC_END(.Lrelocated)
-#ifdef CONFIG_EFI_STUB
- .data
-efi32_config:
- .fill 5,8,0
- .long efi_call_phys
- .long 0
- .byte 0
-#endif
-
/*
* Stack and heap for uncompression
*/
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 58a512e33d8d..1f1f6c8139b3 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -208,10 +208,12 @@ SYM_FUNC_START(startup_32)
pushl $__KERNEL_CS
leal startup_64(%ebp), %eax
#ifdef CONFIG_EFI_MIXED
- movl efi32_config(%ebp), %ebx
- cmp $0, %ebx
+ movl efi32_boot_args(%ebp), %edi
+ cmp $0, %edi
jz 1f
- leal handover_entry(%ebp), %eax
+ leal efi64_stub_entry(%ebp), %eax
+ movl %esi, %edx
+ movl efi32_boot_args+4(%ebp), %esi
1:
#endif
pushl %eax
@@ -232,17 +234,19 @@ SYM_FUNC_START(efi32_stub_entry)
popl %edx
popl %esi
- leal (BP_scratch+4)(%esi), %esp
call 1f
1: pop %ebp
subl $1b, %ebp
- movl %ecx, efi32_config(%ebp)
- movl %edx, efi32_config+8(%ebp)
+ movl %ecx, efi32_boot_args(%ebp)
+ movl %edx, efi32_boot_args+4(%ebp)
sgdtl efi32_boot_gdt(%ebp)
+ movb $0, efi_is64(%ebp)
- leal efi32_config(%ebp), %eax
- movl %eax, efi_config(%ebp)
+ /* Disable paging */
+ movl %cr0, %eax
+ btrl $X86_CR0_PG_BIT, %eax
+ movl %eax, %cr0
jmp startup_32
SYM_FUNC_END(efi32_stub_entry)
@@ -445,70 +449,17 @@ trampoline_return:
SYM_CODE_END(startup_64)
#ifdef CONFIG_EFI_STUB
-
-/* The entry point for the PE/COFF executable is efi_pe_entry. */
-SYM_FUNC_START(efi_pe_entry)
- movq %rcx, efi64_config(%rip) /* Handle */
- movq %rdx, efi64_config+8(%rip) /* EFI System table pointer */
-
- leaq efi64_config(%rip), %rax
- movq %rax, efi_config(%rip)
-
- call 1f
-1: popq %rbp
- subq $1b, %rbp
-
- /*
- * Relocate efi_config->call().
- */
- addq %rbp, efi64_config+40(%rip)
-
- movq %rax, %rdi
- call make_boot_params
- cmpq $0,%rax
- je fail
- mov %rax, %rsi
- leaq startup_32(%rip), %rax
- movl %eax, BP_code32_start(%rsi)
- jmp 2f /* Skip the relocation */
-
-handover_entry:
- call 1f
-1: popq %rbp
- subq $1b, %rbp
-
- /*
- * Relocate efi_config->call().
- */
- movq efi_config(%rip), %rax
- addq %rbp, 40(%rax)
-2:
- movq efi_config(%rip), %rdi
+ .org 0x390
+SYM_FUNC_START(efi64_stub_entry)
+SYM_FUNC_START_ALIAS(efi_stub_entry)
+ and $~0xf, %rsp /* realign the stack */
call efi_main
movq %rax,%rsi
- cmpq $0,%rax
- jne 2f
-fail:
- /* EFI init failed, so hang. */
- hlt
- jmp fail
-2:
movl BP_code32_start(%esi), %eax
leaq startup_64(%rax), %rax
jmp *%rax
-SYM_FUNC_END(efi_pe_entry)
-
- .org 0x390
-SYM_FUNC_START(efi64_stub_entry)
- movq %rdi, efi64_config(%rip) /* Handle */
- movq %rsi, efi64_config+8(%rip) /* EFI System table pointer */
-
- leaq efi64_config(%rip), %rax
- movq %rax, efi_config(%rip)
-
- movq %rdx, %rsi
- jmp handover_entry
SYM_FUNC_END(efi64_stub_entry)
+SYM_FUNC_END_ALIAS(efi_stub_entry)
#endif
.text
@@ -677,24 +628,11 @@ SYM_DATA_START_LOCAL(gdt)
.quad 0x0000000000000000 /* TS continued */
SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
-#ifdef CONFIG_EFI_STUB
-SYM_DATA_LOCAL(efi_config, .quad 0)
-
#ifdef CONFIG_EFI_MIXED
-SYM_DATA_START(efi32_config)
- .fill 5,8,0
- .quad efi64_thunk
- .byte 0
-SYM_DATA_END(efi32_config)
+SYM_DATA_LOCAL(efi32_boot_args, .long 0, 0)
+SYM_DATA(efi_is64, .byte 1)
#endif
-SYM_DATA_START(efi64_config)
- .fill 5,8,0
- .quad efi_call
- .byte 1
-SYM_DATA_END(efi64_config)
-#endif /* CONFIG_EFI_STUB */
-
/*
* Stack and heap for uncompression
*/
diff --git a/arch/x86/boot/mkcpustr.c b/arch/x86/boot/mkcpustr.c
index 9caa10e82217..da0ccc5de538 100644
--- a/arch/x86/boot/mkcpustr.c
+++ b/arch/x86/boot/mkcpustr.c
@@ -15,6 +15,7 @@
#include "../include/asm/required-features.h"
#include "../include/asm/disabled-features.h"
#include "../include/asm/cpufeatures.h"
+#include "../include/asm/vmxfeatures.h"
#include "../kernel/cpu/capflags.c"
int main(void)
diff --git a/arch/x86/boot/setup.ld b/arch/x86/boot/setup.ld
index 0149e41d42c2..3da1c37c6dd5 100644
--- a/arch/x86/boot/setup.ld
+++ b/arch/x86/boot/setup.ld
@@ -51,7 +51,10 @@ SECTIONS
. = ALIGN(16);
_end = .;
- /DISCARD/ : { *(.note*) }
+ /DISCARD/ : {
+ *(.eh_frame)
+ *(.note*)
+ }
/*
* The ASSERT() sink to . is intentional, for binutils 2.14 compatibility:
diff --git a/arch/x86/crypto/.gitignore b/arch/x86/crypto/.gitignore
new file mode 100644
index 000000000000..30be0400a439
--- /dev/null
+++ b/arch/x86/crypto/.gitignore
@@ -0,0 +1 @@
+poly1305-x86_64-cryptogams.S
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 958440eae27e..b69e00bf20b8 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -73,6 +73,10 @@ aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o
nhpoly1305-sse2-y := nh-sse2-x86_64.o nhpoly1305-sse2-glue.o
blake2s-x86_64-y := blake2s-core.o blake2s-glue.o
+poly1305-x86_64-y := poly1305-x86_64-cryptogams.o poly1305_glue.o
+ifneq ($(CONFIG_CRYPTO_POLY1305_X86_64),)
+targets += poly1305-x86_64-cryptogams.S
+endif
ifeq ($(avx_supported),yes)
camellia-aesni-avx-x86_64-y := camellia-aesni-avx-asm_64.o \
@@ -101,10 +105,8 @@ aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o
aesni-intel-$(CONFIG_64BIT) += aesni-intel_avx-x86_64.o aes_ctrby8_avx-x86_64.o
ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
sha1-ssse3-y := sha1_ssse3_asm.o sha1_ssse3_glue.o
-poly1305-x86_64-y := poly1305-sse2-x86_64.o poly1305_glue.o
ifeq ($(avx2_supported),yes)
sha1-ssse3-y += sha1_avx2_x86_64_asm.o
-poly1305-x86_64-y += poly1305-avx2-x86_64.o
endif
ifeq ($(sha1_ni_supported),yes)
sha1-ssse3-y += sha1_ni_asm.o
@@ -118,3 +120,8 @@ sha256-ssse3-y += sha256_ni_asm.o
endif
sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o
crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o
+
+quiet_cmd_perlasm = PERLASM $@
+ cmd_perlasm = $(PERL) $< > $@
+$(obj)/%.S: $(src)/%.pl FORCE
+ $(call if_changed,perlasm)
diff --git a/arch/x86/crypto/aegis128-aesni-glue.c b/arch/x86/crypto/aegis128-aesni-glue.c
index 46d227122643..4623189000d8 100644
--- a/arch/x86/crypto/aegis128-aesni-glue.c
+++ b/arch/x86/crypto/aegis128-aesni-glue.c
@@ -144,10 +144,8 @@ static int crypto_aegis128_aesni_setkey(struct crypto_aead *aead, const u8 *key,
{
struct aegis_ctx *ctx = crypto_aegis128_aesni_ctx(aead);
- if (keylen != AEGIS128_KEY_SIZE) {
- crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != AEGIS128_KEY_SIZE)
return -EINVAL;
- }
memcpy(ctx->key.bytes, key, AEGIS128_KEY_SIZE);
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index d28503f99f58..cad6e1bfa7d5 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1942,7 +1942,7 @@ SYM_FUNC_START(aesni_set_key)
SYM_FUNC_END(aesni_set_key)
/*
- * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
+ * void aesni_enc(const void *ctx, u8 *dst, const u8 *src)
*/
SYM_FUNC_START(aesni_enc)
FRAME_BEGIN
@@ -2131,7 +2131,7 @@ SYM_FUNC_START_LOCAL(_aesni_enc4)
SYM_FUNC_END(_aesni_enc4)
/*
- * void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
+ * void aesni_dec (const void *ctx, u8 *dst, const u8 *src)
*/
SYM_FUNC_START(aesni_dec)
FRAME_BEGIN
@@ -2716,8 +2716,8 @@ SYM_FUNC_END(aesni_ctr_enc)
pxor CTR, IV;
/*
- * void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
- * bool enc, u8 *iv)
+ * void aesni_xts_crypt8(const struct crypto_aes_ctx *ctx, u8 *dst,
+ * const u8 *src, bool enc, le128 *iv)
*/
SYM_FUNC_START(aesni_xts_crypt8)
FRAME_BEGIN
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 3e707e81afdb..bbbebbd35b5d 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -83,10 +83,8 @@ struct gcm_context_data {
asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
unsigned int key_len);
-asmlinkage void aesni_enc(struct crypto_aes_ctx *ctx, u8 *out,
- const u8 *in);
-asmlinkage void aesni_dec(struct crypto_aes_ctx *ctx, u8 *out,
- const u8 *in);
+asmlinkage void aesni_enc(const void *ctx, u8 *out, const u8 *in);
+asmlinkage void aesni_dec(const void *ctx, u8 *out, const u8 *in);
asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out,
const u8 *in, unsigned int len);
asmlinkage void aesni_ecb_dec(struct crypto_aes_ctx *ctx, u8 *out,
@@ -106,8 +104,8 @@ static void (*aesni_ctr_enc_tfm)(struct crypto_aes_ctx *ctx, u8 *out,
asmlinkage void aesni_ctr_enc(struct crypto_aes_ctx *ctx, u8 *out,
const u8 *in, unsigned int len, u8 *iv);
-asmlinkage void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, u8 *out,
- const u8 *in, bool enc, u8 *iv);
+asmlinkage void aesni_xts_crypt8(const struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, bool enc, le128 *iv);
/* asmlinkage void aesni_gcm_enc()
* void *ctx, AES Key schedule. Starts on a 16 byte boundary.
@@ -318,14 +316,11 @@ static int aes_set_key_common(struct crypto_tfm *tfm, void *raw_ctx,
const u8 *in_key, unsigned int key_len)
{
struct crypto_aes_ctx *ctx = aes_ctx(raw_ctx);
- u32 *flags = &tfm->crt_flags;
int err;
if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_192 &&
- key_len != AES_KEYSIZE_256) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ key_len != AES_KEYSIZE_256)
return -EINVAL;
- }
if (!crypto_simd_usable())
err = aes_expandkey(ctx, in_key, key_len);
@@ -550,29 +545,24 @@ static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key,
}
-static void aesni_xts_tweak(void *ctx, u8 *out, const u8 *in)
-{
- aesni_enc(ctx, out, in);
-}
-
-static void aesni_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void aesni_xts_enc(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_enc));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, aesni_enc);
}
-static void aesni_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void aesni_xts_dec(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_dec));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, aesni_dec);
}
-static void aesni_xts_enc8(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void aesni_xts_enc8(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- aesni_xts_crypt8(ctx, (u8 *)dst, (const u8 *)src, true, (u8 *)iv);
+ aesni_xts_crypt8(ctx, dst, src, true, iv);
}
-static void aesni_xts_dec8(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void aesni_xts_dec8(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- aesni_xts_crypt8(ctx, (u8 *)dst, (const u8 *)src, false, (u8 *)iv);
+ aesni_xts_crypt8(ctx, dst, src, false, iv);
}
static const struct common_glue_ctx aesni_enc_xts = {
@@ -581,10 +571,10 @@ static const struct common_glue_ctx aesni_enc_xts = {
.funcs = { {
.num_blocks = 8,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_enc8) }
+ .fn_u = { .xts = aesni_xts_enc8 }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_enc) }
+ .fn_u = { .xts = aesni_xts_enc }
} }
};
@@ -594,10 +584,10 @@ static const struct common_glue_ctx aesni_dec_xts = {
.funcs = { {
.num_blocks = 8,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_dec8) }
+ .fn_u = { .xts = aesni_xts_dec8 }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_dec) }
+ .fn_u = { .xts = aesni_xts_dec }
} }
};
@@ -606,8 +596,7 @@ static int xts_encrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&aesni_enc_xts, req,
- XTS_TWEAK_CAST(aesni_xts_tweak),
+ return glue_xts_req_128bit(&aesni_enc_xts, req, aesni_enc,
aes_ctx(ctx->raw_tweak_ctx),
aes_ctx(ctx->raw_crypt_ctx),
false);
@@ -618,8 +607,7 @@ static int xts_decrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&aesni_dec_xts, req,
- XTS_TWEAK_CAST(aesni_xts_tweak),
+ return glue_xts_req_128bit(&aesni_dec_xts, req, aesni_enc,
aes_ctx(ctx->raw_tweak_ctx),
aes_ctx(ctx->raw_crypt_ctx),
true);
@@ -650,10 +638,9 @@ static int common_rfc4106_set_key(struct crypto_aead *aead, const u8 *key,
{
struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(aead);
- if (key_len < 4) {
- crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (key_len < 4)
return -EINVAL;
- }
+
/*Account for 4 byte nonce at the end.*/
key_len -= 4;
diff --git a/arch/x86/crypto/blake2s-glue.c b/arch/x86/crypto/blake2s-glue.c
index 1d9ff8a45e1f..06ef2d4a4701 100644
--- a/arch/x86/crypto/blake2s-glue.c
+++ b/arch/x86/crypto/blake2s-glue.c
@@ -64,10 +64,8 @@ static int crypto_blake2s_setkey(struct crypto_shash *tfm, const u8 *key,
{
struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(tfm);
- if (keylen == 0 || keylen > BLAKE2S_KEY_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen == 0 || keylen > BLAKE2S_KEY_SIZE)
return -EINVAL;
- }
memcpy(tctx->key, key, keylen);
tctx->keylen = keylen;
diff --git a/arch/x86/crypto/camellia_aesni_avx2_glue.c b/arch/x86/crypto/camellia_aesni_avx2_glue.c
index a4f00128ea55..ccda647422d6 100644
--- a/arch/x86/crypto/camellia_aesni_avx2_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c
@@ -19,20 +19,17 @@
#define CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS 32
/* 32-way AVX2/AES-NI parallel cipher functions */
-asmlinkage void camellia_ecb_enc_32way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void camellia_ecb_dec_32way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void camellia_ecb_enc_32way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void camellia_ecb_dec_32way(const void *ctx, u8 *dst, const u8 *src);
-asmlinkage void camellia_cbc_dec_32way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void camellia_ctr_32way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void camellia_cbc_dec_32way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void camellia_ctr_32way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
-asmlinkage void camellia_xts_enc_32way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
-asmlinkage void camellia_xts_dec_32way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void camellia_xts_enc_32way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+asmlinkage void camellia_xts_dec_32way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
static const struct common_glue_ctx camellia_enc = {
.num_funcs = 4,
@@ -40,16 +37,16 @@ static const struct common_glue_ctx camellia_enc = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_32way) }
+ .fn_u = { .ecb = camellia_ecb_enc_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) }
+ .fn_u = { .ecb = camellia_ecb_enc_16way }
}, {
.num_blocks = 2,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
+ .fn_u = { .ecb = camellia_enc_blk_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
+ .fn_u = { .ecb = camellia_enc_blk }
} }
};
@@ -59,16 +56,16 @@ static const struct common_glue_ctx camellia_ctr = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_32way) }
+ .fn_u = { .ctr = camellia_ctr_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) }
+ .fn_u = { .ctr = camellia_ctr_16way }
}, {
.num_blocks = 2,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
+ .fn_u = { .ctr = camellia_crypt_ctr_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
+ .fn_u = { .ctr = camellia_crypt_ctr }
} }
};
@@ -78,13 +75,13 @@ static const struct common_glue_ctx camellia_enc_xts = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_32way) }
+ .fn_u = { .xts = camellia_xts_enc_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) }
+ .fn_u = { .xts = camellia_xts_enc_16way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) }
+ .fn_u = { .xts = camellia_xts_enc }
} }
};
@@ -94,16 +91,16 @@ static const struct common_glue_ctx camellia_dec = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_32way) }
+ .fn_u = { .ecb = camellia_ecb_dec_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) }
+ .fn_u = { .ecb = camellia_ecb_dec_16way }
}, {
.num_blocks = 2,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
+ .fn_u = { .ecb = camellia_dec_blk_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }
+ .fn_u = { .ecb = camellia_dec_blk }
} }
};
@@ -113,16 +110,16 @@ static const struct common_glue_ctx camellia_dec_cbc = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_32way) }
+ .fn_u = { .cbc = camellia_cbc_dec_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) }
+ .fn_u = { .cbc = camellia_cbc_dec_16way }
}, {
.num_blocks = 2,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
+ .fn_u = { .cbc = camellia_decrypt_cbc_2way }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
+ .fn_u = { .cbc = camellia_dec_blk }
} }
};
@@ -132,21 +129,20 @@ static const struct common_glue_ctx camellia_dec_xts = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_32way) }
+ .fn_u = { .xts = camellia_xts_dec_32way }
}, {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) }
+ .fn_u = { .xts = camellia_xts_dec_16way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) }
+ .fn_u = { .xts = camellia_xts_dec }
} }
};
static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
- return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen,
- &tfm->base.crt_flags);
+ return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen);
}
static int ecb_encrypt(struct skcipher_request *req)
@@ -161,8 +157,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk),
- req);
+ return glue_cbc_encrypt_req_128bit(camellia_enc_blk, req);
}
static int cbc_decrypt(struct skcipher_request *req)
@@ -180,8 +175,7 @@ static int xts_encrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&camellia_enc_xts, req,
- XTS_TWEAK_CAST(camellia_enc_blk),
+ return glue_xts_req_128bit(&camellia_enc_xts, req, camellia_enc_blk,
&ctx->tweak_ctx, &ctx->crypt_ctx, false);
}
@@ -190,8 +184,7 @@ static int xts_decrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&camellia_dec_xts, req,
- XTS_TWEAK_CAST(camellia_enc_blk),
+ return glue_xts_req_128bit(&camellia_dec_xts, req, camellia_enc_blk,
&ctx->tweak_ctx, &ctx->crypt_ctx, true);
}
diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c
index f28d282779b8..4e5de6ef206e 100644
--- a/arch/x86/crypto/camellia_aesni_avx_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx_glue.c
@@ -18,41 +18,36 @@
#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
/* 16-way parallel cipher functions (avx/aes-ni) */
-asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);
-asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);
-asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);
-asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void camellia_ctr_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
EXPORT_SYMBOL_GPL(camellia_ctr_16way);
-asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void camellia_xts_enc_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
EXPORT_SYMBOL_GPL(camellia_xts_enc_16way);
-asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void camellia_xts_dec_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
EXPORT_SYMBOL_GPL(camellia_xts_dec_16way);
-void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void camellia_xts_enc(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(camellia_enc_blk));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, camellia_enc_blk);
}
EXPORT_SYMBOL_GPL(camellia_xts_enc);
-void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void camellia_xts_dec(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(camellia_dec_blk));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, camellia_dec_blk);
}
EXPORT_SYMBOL_GPL(camellia_xts_dec);
@@ -62,13 +57,13 @@ static const struct common_glue_ctx camellia_enc = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) }
+ .fn_u = { .ecb = camellia_ecb_enc_16way }
}, {
.num_blocks = 2,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
+ .fn_u = { .ecb = camellia_enc_blk_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
+ .fn_u = { .ecb = camellia_enc_blk }
} }
};
@@ -78,13 +73,13 @@ static const struct common_glue_ctx camellia_ctr = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) }
+ .fn_u = { .ctr = camellia_ctr_16way }
}, {
.num_blocks = 2,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
+ .fn_u = { .ctr = camellia_crypt_ctr_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
+ .fn_u = { .ctr = camellia_crypt_ctr }
} }
};
@@ -94,10 +89,10 @@ static const struct common_glue_ctx camellia_enc_xts = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) }
+ .fn_u = { .xts = camellia_xts_enc_16way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) }
+ .fn_u = { .xts = camellia_xts_enc }
} }
};
@@ -107,13 +102,13 @@ static const struct common_glue_ctx camellia_dec = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) }
+ .fn_u = { .ecb = camellia_ecb_dec_16way }
}, {
.num_blocks = 2,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
+ .fn_u = { .ecb = camellia_dec_blk_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }
+ .fn_u = { .ecb = camellia_dec_blk }
} }
};
@@ -123,13 +118,13 @@ static const struct common_glue_ctx camellia_dec_cbc = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) }
+ .fn_u = { .cbc = camellia_cbc_dec_16way }
}, {
.num_blocks = 2,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
+ .fn_u = { .cbc = camellia_decrypt_cbc_2way }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
+ .fn_u = { .cbc = camellia_dec_blk }
} }
};
@@ -139,18 +134,17 @@ static const struct common_glue_ctx camellia_dec_xts = {
.funcs = { {
.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) }
+ .fn_u = { .xts = camellia_xts_dec_16way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) }
+ .fn_u = { .xts = camellia_xts_dec }
} }
};
static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
- return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen,
- &tfm->base.crt_flags);
+ return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen);
}
static int ecb_encrypt(struct skcipher_request *req)
@@ -165,8 +159,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk),
- req);
+ return glue_cbc_encrypt_req_128bit(camellia_enc_blk, req);
}
static int cbc_decrypt(struct skcipher_request *req)
@@ -183,7 +176,6 @@ int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- u32 *flags = &tfm->base.crt_flags;
int err;
err = xts_verify_key(tfm, key, keylen);
@@ -191,13 +183,12 @@ int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
return err;
/* first half of xts-key is for crypt */
- err = __camellia_setkey(&ctx->crypt_ctx, key, keylen / 2, flags);
+ err = __camellia_setkey(&ctx->crypt_ctx, key, keylen / 2);
if (err)
return err;
/* second half of xts-key is for tweak */
- return __camellia_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2,
- flags);
+ return __camellia_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2);
}
EXPORT_SYMBOL_GPL(xts_camellia_setkey);
@@ -206,8 +197,7 @@ static int xts_encrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&camellia_enc_xts, req,
- XTS_TWEAK_CAST(camellia_enc_blk),
+ return glue_xts_req_128bit(&camellia_enc_xts, req, camellia_enc_blk,
&ctx->tweak_ctx, &ctx->crypt_ctx, false);
}
@@ -216,8 +206,7 @@ static int xts_decrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct camellia_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&camellia_dec_xts, req,
- XTS_TWEAK_CAST(camellia_enc_blk),
+ return glue_xts_req_128bit(&camellia_dec_xts, req, camellia_enc_blk,
&ctx->tweak_ctx, &ctx->crypt_ctx, true);
}
diff --git a/arch/x86/crypto/camellia_glue.c b/arch/x86/crypto/camellia_glue.c
index 7c62db56ffe1..242c056e5fa8 100644
--- a/arch/x86/crypto/camellia_glue.c
+++ b/arch/x86/crypto/camellia_glue.c
@@ -18,19 +18,17 @@
#include <asm/crypto/glue_helper.h>
/* regular block cipher functions */
-asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, bool xor);
+asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
EXPORT_SYMBOL_GPL(__camellia_enc_blk);
-asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void camellia_dec_blk(const void *ctx, u8 *dst, const u8 *src);
EXPORT_SYMBOL_GPL(camellia_dec_blk);
/* 2-way parallel cipher functions */
-asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, bool xor);
+asmlinkage void __camellia_enc_blk_2way(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
EXPORT_SYMBOL_GPL(__camellia_enc_blk_2way);
-asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void camellia_dec_blk_2way(const void *ctx, u8 *dst, const u8 *src);
EXPORT_SYMBOL_GPL(camellia_dec_blk_2way);
static void camellia_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
@@ -1229,12 +1227,10 @@ static void camellia_setup192(const unsigned char *key, u64 *subkey)
}
int __camellia_setkey(struct camellia_ctx *cctx, const unsigned char *key,
- unsigned int key_len, u32 *flags)
+ unsigned int key_len)
{
- if (key_len != 16 && key_len != 24 && key_len != 32) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ if (key_len != 16 && key_len != 24 && key_len != 32)
return -EINVAL;
- }
cctx->key_length = key_len;
@@ -1257,8 +1253,7 @@ EXPORT_SYMBOL_GPL(__camellia_setkey);
static int camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int key_len)
{
- return __camellia_setkey(crypto_tfm_ctx(tfm), key, key_len,
- &tfm->crt_flags);
+ return __camellia_setkey(crypto_tfm_ctx(tfm), key, key_len);
}
static int camellia_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
@@ -1267,8 +1262,10 @@ static int camellia_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
return camellia_setkey(&tfm->base, key, key_len);
}
-void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src)
+void camellia_decrypt_cbc_2way(const void *ctx, u8 *d, const u8 *s)
{
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
u128 iv = *src;
camellia_dec_blk_2way(ctx, (u8 *)dst, (u8 *)src);
@@ -1277,9 +1274,11 @@ void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src)
}
EXPORT_SYMBOL_GPL(camellia_decrypt_cbc_2way);
-void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void camellia_crypt_ctr(const void *ctx, u8 *d, const u8 *s, le128 *iv)
{
be128 ctrblk;
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
if (dst != src)
*dst = *src;
@@ -1291,9 +1290,11 @@ void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
}
EXPORT_SYMBOL_GPL(camellia_crypt_ctr);
-void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void camellia_crypt_ctr_2way(const void *ctx, u8 *d, const u8 *s, le128 *iv)
{
be128 ctrblks[2];
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
if (dst != src) {
dst[0] = src[0];
@@ -1315,10 +1316,10 @@ static const struct common_glue_ctx camellia_enc = {
.funcs = { {
.num_blocks = 2,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }
+ .fn_u = { .ecb = camellia_enc_blk_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }
+ .fn_u = { .ecb = camellia_enc_blk }
} }
};
@@ -1328,10 +1329,10 @@ static const struct common_glue_ctx camellia_ctr = {
.funcs = { {
.num_blocks = 2,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }
+ .fn_u = { .ctr = camellia_crypt_ctr_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }
+ .fn_u = { .ctr = camellia_crypt_ctr }
} }
};
@@ -1341,10 +1342,10 @@ static const struct common_glue_ctx camellia_dec = {
.funcs = { {
.num_blocks = 2,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }
+ .fn_u = { .ecb = camellia_dec_blk_2way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }
+ .fn_u = { .ecb = camellia_dec_blk }
} }
};
@@ -1354,10 +1355,10 @@ static const struct common_glue_ctx camellia_dec_cbc = {
.funcs = { {
.num_blocks = 2,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }
+ .fn_u = { .cbc = camellia_decrypt_cbc_2way }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }
+ .fn_u = { .cbc = camellia_dec_blk }
} }
};
@@ -1373,8 +1374,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(camellia_enc_blk),
- req);
+ return glue_cbc_encrypt_req_128bit(camellia_enc_blk, req);
}
static int cbc_decrypt(struct skcipher_request *req)
diff --git a/arch/x86/crypto/cast6_avx_glue.c b/arch/x86/crypto/cast6_avx_glue.c
index a8a38fffb4a9..48e0f37796fa 100644
--- a/arch/x86/crypto/cast6_avx_glue.c
+++ b/arch/x86/crypto/cast6_avx_glue.c
@@ -20,20 +20,17 @@
#define CAST6_PARALLEL_BLOCKS 8
-asmlinkage void cast6_ecb_enc_8way(struct cast6_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void cast6_ecb_dec_8way(struct cast6_ctx *ctx, u8 *dst,
- const u8 *src);
-
-asmlinkage void cast6_cbc_dec_8way(struct cast6_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void cast6_ctr_8way(struct cast6_ctx *ctx, u8 *dst, const u8 *src,
+asmlinkage void cast6_ecb_enc_8way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void cast6_ecb_dec_8way(const void *ctx, u8 *dst, const u8 *src);
+
+asmlinkage void cast6_cbc_dec_8way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void cast6_ctr_8way(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-asmlinkage void cast6_xts_enc_8way(struct cast6_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
-asmlinkage void cast6_xts_dec_8way(struct cast6_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void cast6_xts_enc_8way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+asmlinkage void cast6_xts_dec_8way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
static int cast6_setkey_skcipher(struct crypto_skcipher *tfm,
const u8 *key, unsigned int keylen)
@@ -41,21 +38,21 @@ static int cast6_setkey_skcipher(struct crypto_skcipher *tfm,
return cast6_setkey(&tfm->base, key, keylen);
}
-static void cast6_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void cast6_xts_enc(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(__cast6_encrypt));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, __cast6_encrypt);
}
-static void cast6_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void cast6_xts_dec(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(__cast6_decrypt));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, __cast6_decrypt);
}
-static void cast6_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void cast6_crypt_ctr(const void *ctx, u8 *d, const u8 *s, le128 *iv)
{
be128 ctrblk;
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
le128_to_be128(&ctrblk, iv);
le128_inc(iv);
@@ -70,10 +67,10 @@ static const struct common_glue_ctx cast6_enc = {
.funcs = { {
.num_blocks = CAST6_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(cast6_ecb_enc_8way) }
+ .fn_u = { .ecb = cast6_ecb_enc_8way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__cast6_encrypt) }
+ .fn_u = { .ecb = __cast6_encrypt }
} }
};
@@ -83,10 +80,10 @@ static const struct common_glue_ctx cast6_ctr = {
.funcs = { {
.num_blocks = CAST6_PARALLEL_BLOCKS,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(cast6_ctr_8way) }
+ .fn_u = { .ctr = cast6_ctr_8way }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(cast6_crypt_ctr) }
+ .fn_u = { .ctr = cast6_crypt_ctr }
} }
};
@@ -96,10 +93,10 @@ static const struct common_glue_ctx cast6_enc_xts = {
.funcs = { {
.num_blocks = CAST6_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_enc_8way) }
+ .fn_u = { .xts = cast6_xts_enc_8way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_enc) }
+ .fn_u = { .xts = cast6_xts_enc }
} }
};
@@ -109,10 +106,10 @@ static const struct common_glue_ctx cast6_dec = {
.funcs = { {
.num_blocks = CAST6_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(cast6_ecb_dec_8way) }
+ .fn_u = { .ecb = cast6_ecb_dec_8way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__cast6_decrypt) }
+ .fn_u = { .ecb = __cast6_decrypt }
} }
};
@@ -122,10 +119,10 @@ static const struct common_glue_ctx cast6_dec_cbc = {
.funcs = { {
.num_blocks = CAST6_PARALLEL_BLOCKS,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(cast6_cbc_dec_8way) }
+ .fn_u = { .cbc = cast6_cbc_dec_8way }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__cast6_decrypt) }
+ .fn_u = { .cbc = __cast6_decrypt }
} }
};
@@ -135,10 +132,10 @@ static const struct common_glue_ctx cast6_dec_xts = {
.funcs = { {
.num_blocks = CAST6_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_dec_8way) }
+ .fn_u = { .xts = cast6_xts_dec_8way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(cast6_xts_dec) }
+ .fn_u = { .xts = cast6_xts_dec }
} }
};
@@ -154,8 +151,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__cast6_encrypt),
- req);
+ return glue_cbc_encrypt_req_128bit(__cast6_encrypt, req);
}
static int cbc_decrypt(struct skcipher_request *req)
@@ -177,7 +173,6 @@ static int xts_cast6_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct cast6_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- u32 *flags = &tfm->base.crt_flags;
int err;
err = xts_verify_key(tfm, key, keylen);
@@ -185,13 +180,12 @@ static int xts_cast6_setkey(struct crypto_skcipher *tfm, const u8 *key,
return err;
/* first half of xts-key is for crypt */
- err = __cast6_setkey(&ctx->crypt_ctx, key, keylen / 2, flags);
+ err = __cast6_setkey(&ctx->crypt_ctx, key, keylen / 2);
if (err)
return err;
/* second half of xts-key is for tweak */
- return __cast6_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2,
- flags);
+ return __cast6_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2);
}
static int xts_encrypt(struct skcipher_request *req)
@@ -199,8 +193,7 @@ static int xts_encrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct cast6_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&cast6_enc_xts, req,
- XTS_TWEAK_CAST(__cast6_encrypt),
+ return glue_xts_req_128bit(&cast6_enc_xts, req, __cast6_encrypt,
&ctx->tweak_ctx, &ctx->crypt_ctx, false);
}
@@ -209,8 +202,7 @@ static int xts_decrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct cast6_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&cast6_dec_xts, req,
- XTS_TWEAK_CAST(__cast6_encrypt),
+ return glue_xts_req_128bit(&cast6_dec_xts, req, __cast6_encrypt,
&ctx->tweak_ctx, &ctx->crypt_ctx, true);
}
diff --git a/arch/x86/crypto/crc32-pclmul_glue.c b/arch/x86/crypto/crc32-pclmul_glue.c
index cb4ab6645106..418bd88acac8 100644
--- a/arch/x86/crypto/crc32-pclmul_glue.c
+++ b/arch/x86/crypto/crc32-pclmul_glue.c
@@ -94,10 +94,8 @@ static int crc32_pclmul_setkey(struct crypto_shash *hash, const u8 *key,
{
u32 *mctx = crypto_shash_ctx(hash);
- if (keylen != sizeof(u32)) {
- crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(u32))
return -EINVAL;
- }
*mctx = le32_to_cpup((__le32 *)key);
return 0;
}
diff --git a/arch/x86/crypto/crc32c-intel_glue.c b/arch/x86/crypto/crc32c-intel_glue.c
index eefa0862f309..c20d1b8a82c3 100644
--- a/arch/x86/crypto/crc32c-intel_glue.c
+++ b/arch/x86/crypto/crc32c-intel_glue.c
@@ -91,10 +91,8 @@ static int crc32c_intel_setkey(struct crypto_shash *hash, const u8 *key,
{
u32 *mctx = crypto_shash_ctx(hash);
- if (keylen != sizeof(u32)) {
- crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(u32))
return -EINVAL;
- }
*mctx = le32_to_cpup((__le32 *)key);
return 0;
}
diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c
index 04d72a5a8ce9..a4b728518e28 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_glue.c
+++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c
@@ -57,10 +57,8 @@ static int ghash_setkey(struct crypto_shash *tfm,
be128 *x = (be128 *)key;
u64 a, b;
- if (keylen != GHASH_BLOCK_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != GHASH_BLOCK_SIZE)
return -EINVAL;
- }
/* perform multiplication by 'x' in GF(2^128) */
a = be64_to_cpu(x->a);
@@ -257,16 +255,11 @@ static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
{
struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
struct crypto_ahash *child = &ctx->cryptd_tfm->base;
- int err;
crypto_ahash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(child, crypto_ahash_get_flags(tfm)
& CRYPTO_TFM_REQ_MASK);
- err = crypto_ahash_setkey(child, key, keylen);
- crypto_ahash_set_flags(tfm, crypto_ahash_get_flags(child)
- & CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_ahash_setkey(child, key, keylen);
}
static int ghash_async_init_tfm(struct crypto_tfm *tfm)
diff --git a/arch/x86/crypto/glue_helper.c b/arch/x86/crypto/glue_helper.c
index d15b99397480..d3d91a0abf88 100644
--- a/arch/x86/crypto/glue_helper.c
+++ b/arch/x86/crypto/glue_helper.c
@@ -134,7 +134,8 @@ int glue_cbc_decrypt_req_128bit(const struct common_glue_ctx *gctx,
src -= num_blocks - 1;
dst -= num_blocks - 1;
- gctx->funcs[i].fn_u.cbc(ctx, dst, src);
+ gctx->funcs[i].fn_u.cbc(ctx, (u8 *)dst,
+ (const u8 *)src);
nbytes -= func_bytes;
if (nbytes < bsize)
@@ -188,7 +189,9 @@ int glue_ctr_req_128bit(const struct common_glue_ctx *gctx,
/* Process multi-block batch */
do {
- gctx->funcs[i].fn_u.ctr(ctx, dst, src, &ctrblk);
+ gctx->funcs[i].fn_u.ctr(ctx, (u8 *)dst,
+ (const u8 *)src,
+ &ctrblk);
src += num_blocks;
dst += num_blocks;
nbytes -= func_bytes;
@@ -210,7 +213,8 @@ int glue_ctr_req_128bit(const struct common_glue_ctx *gctx,
be128_to_le128(&ctrblk, (be128 *)walk.iv);
memcpy(&tmp, walk.src.virt.addr, nbytes);
- gctx->funcs[gctx->num_funcs - 1].fn_u.ctr(ctx, &tmp, &tmp,
+ gctx->funcs[gctx->num_funcs - 1].fn_u.ctr(ctx, (u8 *)&tmp,
+ (const u8 *)&tmp,
&ctrblk);
memcpy(walk.dst.virt.addr, &tmp, nbytes);
le128_to_be128((be128 *)walk.iv, &ctrblk);
@@ -240,7 +244,8 @@ static unsigned int __glue_xts_req_128bit(const struct common_glue_ctx *gctx,
if (nbytes >= func_bytes) {
do {
- gctx->funcs[i].fn_u.xts(ctx, dst, src,
+ gctx->funcs[i].fn_u.xts(ctx, (u8 *)dst,
+ (const u8 *)src,
walk->iv);
src += num_blocks;
@@ -354,8 +359,8 @@ out:
}
EXPORT_SYMBOL_GPL(glue_xts_req_128bit);
-void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src, le128 *iv,
- common_glue_func_t fn)
+void glue_xts_crypt_128bit_one(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv, common_glue_func_t fn)
{
le128 ivblk = *iv;
@@ -363,13 +368,13 @@ void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src, le128 *iv,
gf128mul_x_ble(iv, &ivblk);
/* CC <- T xor C */
- u128_xor(dst, src, (u128 *)&ivblk);
+ u128_xor((u128 *)dst, (const u128 *)src, (u128 *)&ivblk);
/* PP <- D(Key2,CC) */
- fn(ctx, (u8 *)dst, (u8 *)dst);
+ fn(ctx, dst, dst);
/* P <- T xor PP */
- u128_xor(dst, dst, (u128 *)&ivblk);
+ u128_xor((u128 *)dst, (u128 *)dst, (u128 *)&ivblk);
}
EXPORT_SYMBOL_GPL(glue_xts_crypt_128bit_one);
diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S
deleted file mode 100644
index d6063feda9da..000000000000
--- a/arch/x86/crypto/poly1305-avx2-x86_64.S
+++ /dev/null
@@ -1,390 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Poly1305 authenticator algorithm, RFC7539, x64 AVX2 functions
- *
- * Copyright (C) 2015 Martin Willi
- */
-
-#include <linux/linkage.h>
-
-.section .rodata.cst32.ANMASK, "aM", @progbits, 32
-.align 32
-ANMASK: .octa 0x0000000003ffffff0000000003ffffff
- .octa 0x0000000003ffffff0000000003ffffff
-
-.section .rodata.cst32.ORMASK, "aM", @progbits, 32
-.align 32
-ORMASK: .octa 0x00000000010000000000000001000000
- .octa 0x00000000010000000000000001000000
-
-.text
-
-#define h0 0x00(%rdi)
-#define h1 0x04(%rdi)
-#define h2 0x08(%rdi)
-#define h3 0x0c(%rdi)
-#define h4 0x10(%rdi)
-#define r0 0x00(%rdx)
-#define r1 0x04(%rdx)
-#define r2 0x08(%rdx)
-#define r3 0x0c(%rdx)
-#define r4 0x10(%rdx)
-#define u0 0x00(%r8)
-#define u1 0x04(%r8)
-#define u2 0x08(%r8)
-#define u3 0x0c(%r8)
-#define u4 0x10(%r8)
-#define w0 0x14(%r8)
-#define w1 0x18(%r8)
-#define w2 0x1c(%r8)
-#define w3 0x20(%r8)
-#define w4 0x24(%r8)
-#define y0 0x28(%r8)
-#define y1 0x2c(%r8)
-#define y2 0x30(%r8)
-#define y3 0x34(%r8)
-#define y4 0x38(%r8)
-#define m %rsi
-#define hc0 %ymm0
-#define hc1 %ymm1
-#define hc2 %ymm2
-#define hc3 %ymm3
-#define hc4 %ymm4
-#define hc0x %xmm0
-#define hc1x %xmm1
-#define hc2x %xmm2
-#define hc3x %xmm3
-#define hc4x %xmm4
-#define t1 %ymm5
-#define t2 %ymm6
-#define t1x %xmm5
-#define t2x %xmm6
-#define ruwy0 %ymm7
-#define ruwy1 %ymm8
-#define ruwy2 %ymm9
-#define ruwy3 %ymm10
-#define ruwy4 %ymm11
-#define ruwy0x %xmm7
-#define ruwy1x %xmm8
-#define ruwy2x %xmm9
-#define ruwy3x %xmm10
-#define ruwy4x %xmm11
-#define svxz1 %ymm12
-#define svxz2 %ymm13
-#define svxz3 %ymm14
-#define svxz4 %ymm15
-#define d0 %r9
-#define d1 %r10
-#define d2 %r11
-#define d3 %r12
-#define d4 %r13
-
-SYM_FUNC_START(poly1305_4block_avx2)
- # %rdi: Accumulator h[5]
- # %rsi: 64 byte input block m
- # %rdx: Poly1305 key r[5]
- # %rcx: Quadblock count
- # %r8: Poly1305 derived key r^2 u[5], r^3 w[5], r^4 y[5],
-
- # This four-block variant uses loop unrolled block processing. It
- # requires 4 Poly1305 keys: r, r^2, r^3 and r^4:
- # h = (h + m) * r => h = (h + m1) * r^4 + m2 * r^3 + m3 * r^2 + m4 * r
-
- vzeroupper
- push %rbx
- push %r12
- push %r13
-
- # combine r0,u0,w0,y0
- vmovd y0,ruwy0x
- vmovd w0,t1x
- vpunpcklqdq t1,ruwy0,ruwy0
- vmovd u0,t1x
- vmovd r0,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy0,ruwy0
-
- # combine r1,u1,w1,y1 and s1=r1*5,v1=u1*5,x1=w1*5,z1=y1*5
- vmovd y1,ruwy1x
- vmovd w1,t1x
- vpunpcklqdq t1,ruwy1,ruwy1
- vmovd u1,t1x
- vmovd r1,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy1,ruwy1
- vpslld $2,ruwy1,svxz1
- vpaddd ruwy1,svxz1,svxz1
-
- # combine r2,u2,w2,y2 and s2=r2*5,v2=u2*5,x2=w2*5,z2=y2*5
- vmovd y2,ruwy2x
- vmovd w2,t1x
- vpunpcklqdq t1,ruwy2,ruwy2
- vmovd u2,t1x
- vmovd r2,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy2,ruwy2
- vpslld $2,ruwy2,svxz2
- vpaddd ruwy2,svxz2,svxz2
-
- # combine r3,u3,w3,y3 and s3=r3*5,v3=u3*5,x3=w3*5,z3=y3*5
- vmovd y3,ruwy3x
- vmovd w3,t1x
- vpunpcklqdq t1,ruwy3,ruwy3
- vmovd u3,t1x
- vmovd r3,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy3,ruwy3
- vpslld $2,ruwy3,svxz3
- vpaddd ruwy3,svxz3,svxz3
-
- # combine r4,u4,w4,y4 and s4=r4*5,v4=u4*5,x4=w4*5,z4=y4*5
- vmovd y4,ruwy4x
- vmovd w4,t1x
- vpunpcklqdq t1,ruwy4,ruwy4
- vmovd u4,t1x
- vmovd r4,t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,ruwy4,ruwy4
- vpslld $2,ruwy4,svxz4
- vpaddd ruwy4,svxz4,svxz4
-
-.Ldoblock4:
- # hc0 = [m[48-51] & 0x3ffffff, m[32-35] & 0x3ffffff,
- # m[16-19] & 0x3ffffff, m[ 0- 3] & 0x3ffffff + h0]
- vmovd 0x00(m),hc0x
- vmovd 0x10(m),t1x
- vpunpcklqdq t1,hc0,hc0
- vmovd 0x20(m),t1x
- vmovd 0x30(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc0,hc0
- vpand ANMASK(%rip),hc0,hc0
- vmovd h0,t1x
- vpaddd t1,hc0,hc0
- # hc1 = [(m[51-54] >> 2) & 0x3ffffff, (m[35-38] >> 2) & 0x3ffffff,
- # (m[19-22] >> 2) & 0x3ffffff, (m[ 3- 6] >> 2) & 0x3ffffff + h1]
- vmovd 0x03(m),hc1x
- vmovd 0x13(m),t1x
- vpunpcklqdq t1,hc1,hc1
- vmovd 0x23(m),t1x
- vmovd 0x33(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc1,hc1
- vpsrld $2,hc1,hc1
- vpand ANMASK(%rip),hc1,hc1
- vmovd h1,t1x
- vpaddd t1,hc1,hc1
- # hc2 = [(m[54-57] >> 4) & 0x3ffffff, (m[38-41] >> 4) & 0x3ffffff,
- # (m[22-25] >> 4) & 0x3ffffff, (m[ 6- 9] >> 4) & 0x3ffffff + h2]
- vmovd 0x06(m),hc2x
- vmovd 0x16(m),t1x
- vpunpcklqdq t1,hc2,hc2
- vmovd 0x26(m),t1x
- vmovd 0x36(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc2,hc2
- vpsrld $4,hc2,hc2
- vpand ANMASK(%rip),hc2,hc2
- vmovd h2,t1x
- vpaddd t1,hc2,hc2
- # hc3 = [(m[57-60] >> 6) & 0x3ffffff, (m[41-44] >> 6) & 0x3ffffff,
- # (m[25-28] >> 6) & 0x3ffffff, (m[ 9-12] >> 6) & 0x3ffffff + h3]
- vmovd 0x09(m),hc3x
- vmovd 0x19(m),t1x
- vpunpcklqdq t1,hc3,hc3
- vmovd 0x29(m),t1x
- vmovd 0x39(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc3,hc3
- vpsrld $6,hc3,hc3
- vpand ANMASK(%rip),hc3,hc3
- vmovd h3,t1x
- vpaddd t1,hc3,hc3
- # hc4 = [(m[60-63] >> 8) | (1<<24), (m[44-47] >> 8) | (1<<24),
- # (m[28-31] >> 8) | (1<<24), (m[12-15] >> 8) | (1<<24) + h4]
- vmovd 0x0c(m),hc4x
- vmovd 0x1c(m),t1x
- vpunpcklqdq t1,hc4,hc4
- vmovd 0x2c(m),t1x
- vmovd 0x3c(m),t2x
- vpunpcklqdq t2,t1,t1
- vperm2i128 $0x20,t1,hc4,hc4
- vpsrld $8,hc4,hc4
- vpor ORMASK(%rip),hc4,hc4
- vmovd h4,t1x
- vpaddd t1,hc4,hc4
-
- # t1 = [ hc0[3] * r0, hc0[2] * u0, hc0[1] * w0, hc0[0] * y0 ]
- vpmuludq hc0,ruwy0,t1
- # t1 += [ hc1[3] * s4, hc1[2] * v4, hc1[1] * x4, hc1[0] * z4 ]
- vpmuludq hc1,svxz4,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * s3, hc2[2] * v3, hc2[1] * x3, hc2[0] * z3 ]
- vpmuludq hc2,svxz3,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * s2, hc3[2] * v2, hc3[1] * x2, hc3[0] * z2 ]
- vpmuludq hc3,svxz2,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s1, hc4[2] * v1, hc4[1] * x1, hc4[0] * z1 ]
- vpmuludq hc4,svxz1,t2
- vpaddq t2,t1,t1
- # d0 = t1[0] + t1[1] + t[2] + t[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d0
-
- # t1 = [ hc0[3] * r1, hc0[2] * u1,hc0[1] * w1, hc0[0] * y1 ]
- vpmuludq hc0,ruwy1,t1
- # t1 += [ hc1[3] * r0, hc1[2] * u0, hc1[1] * w0, hc1[0] * y0 ]
- vpmuludq hc1,ruwy0,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * s4, hc2[2] * v4, hc2[1] * x4, hc2[0] * z4 ]
- vpmuludq hc2,svxz4,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * s3, hc3[2] * v3, hc3[1] * x3, hc3[0] * z3 ]
- vpmuludq hc3,svxz3,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s2, hc4[2] * v2, hc4[1] * x2, hc4[0] * z2 ]
- vpmuludq hc4,svxz2,t2
- vpaddq t2,t1,t1
- # d1 = t1[0] + t1[1] + t1[3] + t1[4]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d1
-
- # t1 = [ hc0[3] * r2, hc0[2] * u2, hc0[1] * w2, hc0[0] * y2 ]
- vpmuludq hc0,ruwy2,t1
- # t1 += [ hc1[3] * r1, hc1[2] * u1, hc1[1] * w1, hc1[0] * y1 ]
- vpmuludq hc1,ruwy1,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * r0, hc2[2] * u0, hc2[1] * w0, hc2[0] * y0 ]
- vpmuludq hc2,ruwy0,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * s4, hc3[2] * v4, hc3[1] * x4, hc3[0] * z4 ]
- vpmuludq hc3,svxz4,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s3, hc4[2] * v3, hc4[1] * x3, hc4[0] * z3 ]
- vpmuludq hc4,svxz3,t2
- vpaddq t2,t1,t1
- # d2 = t1[0] + t1[1] + t1[2] + t1[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d2
-
- # t1 = [ hc0[3] * r3, hc0[2] * u3, hc0[1] * w3, hc0[0] * y3 ]
- vpmuludq hc0,ruwy3,t1
- # t1 += [ hc1[3] * r2, hc1[2] * u2, hc1[1] * w2, hc1[0] * y2 ]
- vpmuludq hc1,ruwy2,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * r1, hc2[2] * u1, hc2[1] * w1, hc2[0] * y1 ]
- vpmuludq hc2,ruwy1,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * r0, hc3[2] * u0, hc3[1] * w0, hc3[0] * y0 ]
- vpmuludq hc3,ruwy0,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * s4, hc4[2] * v4, hc4[1] * x4, hc4[0] * z4 ]
- vpmuludq hc4,svxz4,t2
- vpaddq t2,t1,t1
- # d3 = t1[0] + t1[1] + t1[2] + t1[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d3
-
- # t1 = [ hc0[3] * r4, hc0[2] * u4, hc0[1] * w4, hc0[0] * y4 ]
- vpmuludq hc0,ruwy4,t1
- # t1 += [ hc1[3] * r3, hc1[2] * u3, hc1[1] * w3, hc1[0] * y3 ]
- vpmuludq hc1,ruwy3,t2
- vpaddq t2,t1,t1
- # t1 += [ hc2[3] * r2, hc2[2] * u2, hc2[1] * w2, hc2[0] * y2 ]
- vpmuludq hc2,ruwy2,t2
- vpaddq t2,t1,t1
- # t1 += [ hc3[3] * r1, hc3[2] * u1, hc3[1] * w1, hc3[0] * y1 ]
- vpmuludq hc3,ruwy1,t2
- vpaddq t2,t1,t1
- # t1 += [ hc4[3] * r0, hc4[2] * u0, hc4[1] * w0, hc4[0] * y0 ]
- vpmuludq hc4,ruwy0,t2
- vpaddq t2,t1,t1
- # d4 = t1[0] + t1[1] + t1[2] + t1[3]
- vpermq $0xee,t1,t2
- vpaddq t2,t1,t1
- vpsrldq $8,t1,t2
- vpaddq t2,t1,t1
- vmovq t1x,d4
-
- # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
- # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
- # amount. Careful: we must not assume the carry bits 'd0 >> 26',
- # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
- # integers. It's true in a single-block implementation, but not here.
-
- # d1 += d0 >> 26
- mov d0,%rax
- shr $26,%rax
- add %rax,d1
- # h0 = d0 & 0x3ffffff
- mov d0,%rbx
- and $0x3ffffff,%ebx
-
- # d2 += d1 >> 26
- mov d1,%rax
- shr $26,%rax
- add %rax,d2
- # h1 = d1 & 0x3ffffff
- mov d1,%rax
- and $0x3ffffff,%eax
- mov %eax,h1
-
- # d3 += d2 >> 26
- mov d2,%rax
- shr $26,%rax
- add %rax,d3
- # h2 = d2 & 0x3ffffff
- mov d2,%rax
- and $0x3ffffff,%eax
- mov %eax,h2
-
- # d4 += d3 >> 26
- mov d3,%rax
- shr $26,%rax
- add %rax,d4
- # h3 = d3 & 0x3ffffff
- mov d3,%rax
- and $0x3ffffff,%eax
- mov %eax,h3
-
- # h0 += (d4 >> 26) * 5
- mov d4,%rax
- shr $26,%rax
- lea (%rax,%rax,4),%rax
- add %rax,%rbx
- # h4 = d4 & 0x3ffffff
- mov d4,%rax
- and $0x3ffffff,%eax
- mov %eax,h4
-
- # h1 += h0 >> 26
- mov %rbx,%rax
- shr $26,%rax
- add %eax,h1
- # h0 = h0 & 0x3ffffff
- andl $0x3ffffff,%ebx
- mov %ebx,h0
-
- add $0x40,m
- dec %rcx
- jnz .Ldoblock4
-
- vzeroupper
- pop %r13
- pop %r12
- pop %rbx
- ret
-SYM_FUNC_END(poly1305_4block_avx2)
diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S
deleted file mode 100644
index d8ea29b96640..000000000000
--- a/arch/x86/crypto/poly1305-sse2-x86_64.S
+++ /dev/null
@@ -1,590 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Poly1305 authenticator algorithm, RFC7539, x64 SSE2 functions
- *
- * Copyright (C) 2015 Martin Willi
- */
-
-#include <linux/linkage.h>
-
-.section .rodata.cst16.ANMASK, "aM", @progbits, 16
-.align 16
-ANMASK: .octa 0x0000000003ffffff0000000003ffffff
-
-.section .rodata.cst16.ORMASK, "aM", @progbits, 16
-.align 16
-ORMASK: .octa 0x00000000010000000000000001000000
-
-.text
-
-#define h0 0x00(%rdi)
-#define h1 0x04(%rdi)
-#define h2 0x08(%rdi)
-#define h3 0x0c(%rdi)
-#define h4 0x10(%rdi)
-#define r0 0x00(%rdx)
-#define r1 0x04(%rdx)
-#define r2 0x08(%rdx)
-#define r3 0x0c(%rdx)
-#define r4 0x10(%rdx)
-#define s1 0x00(%rsp)
-#define s2 0x04(%rsp)
-#define s3 0x08(%rsp)
-#define s4 0x0c(%rsp)
-#define m %rsi
-#define h01 %xmm0
-#define h23 %xmm1
-#define h44 %xmm2
-#define t1 %xmm3
-#define t2 %xmm4
-#define t3 %xmm5
-#define t4 %xmm6
-#define mask %xmm7
-#define d0 %r8
-#define d1 %r9
-#define d2 %r10
-#define d3 %r11
-#define d4 %r12
-
-SYM_FUNC_START(poly1305_block_sse2)
- # %rdi: Accumulator h[5]
- # %rsi: 16 byte input block m
- # %rdx: Poly1305 key r[5]
- # %rcx: Block count
-
- # This single block variant tries to improve performance by doing two
- # multiplications in parallel using SSE instructions. There is quite
- # some quardword packing involved, hence the speedup is marginal.
-
- push %rbx
- push %r12
- sub $0x10,%rsp
-
- # s1..s4 = r1..r4 * 5
- mov r1,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s1
- mov r2,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s2
- mov r3,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s3
- mov r4,%eax
- lea (%eax,%eax,4),%eax
- mov %eax,s4
-
- movdqa ANMASK(%rip),mask
-
-.Ldoblock:
- # h01 = [0, h1, 0, h0]
- # h23 = [0, h3, 0, h2]
- # h44 = [0, h4, 0, h4]
- movd h0,h01
- movd h1,t1
- movd h2,h23
- movd h3,t2
- movd h4,h44
- punpcklqdq t1,h01
- punpcklqdq t2,h23
- punpcklqdq h44,h44
-
- # h01 += [ (m[3-6] >> 2) & 0x3ffffff, m[0-3] & 0x3ffffff ]
- movd 0x00(m),t1
- movd 0x03(m),t2
- psrld $2,t2
- punpcklqdq t2,t1
- pand mask,t1
- paddd t1,h01
- # h23 += [ (m[9-12] >> 6) & 0x3ffffff, (m[6-9] >> 4) & 0x3ffffff ]
- movd 0x06(m),t1
- movd 0x09(m),t2
- psrld $4,t1
- psrld $6,t2
- punpcklqdq t2,t1
- pand mask,t1
- paddd t1,h23
- # h44 += [ (m[12-15] >> 8) | (1 << 24), (m[12-15] >> 8) | (1 << 24) ]
- mov 0x0c(m),%eax
- shr $8,%eax
- or $0x01000000,%eax
- movd %eax,t1
- pshufd $0xc4,t1,t1
- paddd t1,h44
-
- # t1[0] = h0 * r0 + h2 * s3
- # t1[1] = h1 * s4 + h3 * s2
- movd r0,t1
- movd s4,t2
- punpcklqdq t2,t1
- pmuludq h01,t1
- movd s3,t2
- movd s2,t3
- punpcklqdq t3,t2
- pmuludq h23,t2
- paddq t2,t1
- # t2[0] = h0 * r1 + h2 * s4
- # t2[1] = h1 * r0 + h3 * s3
- movd r1,t2
- movd r0,t3
- punpcklqdq t3,t2
- pmuludq h01,t2
- movd s4,t3
- movd s3,t4
- punpcklqdq t4,t3
- pmuludq h23,t3
- paddq t3,t2
- # t3[0] = h4 * s1
- # t3[1] = h4 * s2
- movd s1,t3
- movd s2,t4
- punpcklqdq t4,t3
- pmuludq h44,t3
- # d0 = t1[0] + t1[1] + t3[0]
- # d1 = t2[0] + t2[1] + t3[1]
- movdqa t1,t4
- punpcklqdq t2,t4
- punpckhqdq t2,t1
- paddq t4,t1
- paddq t3,t1
- movq t1,d0
- psrldq $8,t1
- movq t1,d1
-
- # t1[0] = h0 * r2 + h2 * r0
- # t1[1] = h1 * r1 + h3 * s4
- movd r2,t1
- movd r1,t2
- punpcklqdq t2,t1
- pmuludq h01,t1
- movd r0,t2
- movd s4,t3
- punpcklqdq t3,t2
- pmuludq h23,t2
- paddq t2,t1
- # t2[0] = h0 * r3 + h2 * r1
- # t2[1] = h1 * r2 + h3 * r0
- movd r3,t2
- movd r2,t3
- punpcklqdq t3,t2
- pmuludq h01,t2
- movd r1,t3
- movd r0,t4
- punpcklqdq t4,t3
- pmuludq h23,t3
- paddq t3,t2
- # t3[0] = h4 * s3
- # t3[1] = h4 * s4
- movd s3,t3
- movd s4,t4
- punpcklqdq t4,t3
- pmuludq h44,t3
- # d2 = t1[0] + t1[1] + t3[0]
- # d3 = t2[0] + t2[1] + t3[1]
- movdqa t1,t4
- punpcklqdq t2,t4
- punpckhqdq t2,t1
- paddq t4,t1
- paddq t3,t1
- movq t1,d2
- psrldq $8,t1
- movq t1,d3
-
- # t1[0] = h0 * r4 + h2 * r2
- # t1[1] = h1 * r3 + h3 * r1
- movd r4,t1
- movd r3,t2
- punpcklqdq t2,t1
- pmuludq h01,t1
- movd r2,t2
- movd r1,t3
- punpcklqdq t3,t2
- pmuludq h23,t2
- paddq t2,t1
- # t3[0] = h4 * r0
- movd r0,t3
- pmuludq h44,t3
- # d4 = t1[0] + t1[1] + t3[0]
- movdqa t1,t4
- psrldq $8,t4
- paddq t4,t1
- paddq t3,t1
- movq t1,d4
-
- # d1 += d0 >> 26
- mov d0,%rax
- shr $26,%rax
- add %rax,d1
- # h0 = d0 & 0x3ffffff
- mov d0,%rbx
- and $0x3ffffff,%ebx
-
- # d2 += d1 >> 26
- mov d1,%rax
- shr $26,%rax
- add %rax,d2
- # h1 = d1 & 0x3ffffff
- mov d1,%rax
- and $0x3ffffff,%eax
- mov %eax,h1
-
- # d3 += d2 >> 26
- mov d2,%rax
- shr $26,%rax
- add %rax,d3
- # h2 = d2 & 0x3ffffff
- mov d2,%rax
- and $0x3ffffff,%eax
- mov %eax,h2
-
- # d4 += d3 >> 26
- mov d3,%rax
- shr $26,%rax
- add %rax,d4
- # h3 = d3 & 0x3ffffff
- mov d3,%rax
- and $0x3ffffff,%eax
- mov %eax,h3
-
- # h0 += (d4 >> 26) * 5
- mov d4,%rax
- shr $26,%rax
- lea (%rax,%rax,4),%rax
- add %rax,%rbx
- # h4 = d4 & 0x3ffffff
- mov d4,%rax
- and $0x3ffffff,%eax
- mov %eax,h4
-
- # h1 += h0 >> 26
- mov %rbx,%rax
- shr $26,%rax
- add %eax,h1
- # h0 = h0 & 0x3ffffff
- andl $0x3ffffff,%ebx
- mov %ebx,h0
-
- add $0x10,m
- dec %rcx
- jnz .Ldoblock
-
- # Zeroing of key material
- mov %rcx,0x00(%rsp)
- mov %rcx,0x08(%rsp)
-
- add $0x10,%rsp
- pop %r12
- pop %rbx
- ret
-SYM_FUNC_END(poly1305_block_sse2)
-
-
-#define u0 0x00(%r8)
-#define u1 0x04(%r8)
-#define u2 0x08(%r8)
-#define u3 0x0c(%r8)
-#define u4 0x10(%r8)
-#define hc0 %xmm0
-#define hc1 %xmm1
-#define hc2 %xmm2
-#define hc3 %xmm5
-#define hc4 %xmm6
-#define ru0 %xmm7
-#define ru1 %xmm8
-#define ru2 %xmm9
-#define ru3 %xmm10
-#define ru4 %xmm11
-#define sv1 %xmm12
-#define sv2 %xmm13
-#define sv3 %xmm14
-#define sv4 %xmm15
-#undef d0
-#define d0 %r13
-
-SYM_FUNC_START(poly1305_2block_sse2)
- # %rdi: Accumulator h[5]
- # %rsi: 16 byte input block m
- # %rdx: Poly1305 key r[5]
- # %rcx: Doubleblock count
- # %r8: Poly1305 derived key r^2 u[5]
-
- # This two-block variant further improves performance by using loop
- # unrolled block processing. This is more straight forward and does
- # less byte shuffling, but requires a second Poly1305 key r^2:
- # h = (h + m) * r => h = (h + m1) * r^2 + m2 * r
-
- push %rbx
- push %r12
- push %r13
-
- # combine r0,u0
- movd u0,ru0
- movd r0,t1
- punpcklqdq t1,ru0
-
- # combine r1,u1 and s1=r1*5,v1=u1*5
- movd u1,ru1
- movd r1,t1
- punpcklqdq t1,ru1
- movdqa ru1,sv1
- pslld $2,sv1
- paddd ru1,sv1
-
- # combine r2,u2 and s2=r2*5,v2=u2*5
- movd u2,ru2
- movd r2,t1
- punpcklqdq t1,ru2
- movdqa ru2,sv2
- pslld $2,sv2
- paddd ru2,sv2
-
- # combine r3,u3 and s3=r3*5,v3=u3*5
- movd u3,ru3
- movd r3,t1
- punpcklqdq t1,ru3
- movdqa ru3,sv3
- pslld $2,sv3
- paddd ru3,sv3
-
- # combine r4,u4 and s4=r4*5,v4=u4*5
- movd u4,ru4
- movd r4,t1
- punpcklqdq t1,ru4
- movdqa ru4,sv4
- pslld $2,sv4
- paddd ru4,sv4
-
-.Ldoblock2:
- # hc0 = [ m[16-19] & 0x3ffffff, h0 + m[0-3] & 0x3ffffff ]
- movd 0x00(m),hc0
- movd 0x10(m),t1
- punpcklqdq t1,hc0
- pand ANMASK(%rip),hc0
- movd h0,t1
- paddd t1,hc0
- # hc1 = [ (m[19-22] >> 2) & 0x3ffffff, h1 + (m[3-6] >> 2) & 0x3ffffff ]
- movd 0x03(m),hc1
- movd 0x13(m),t1
- punpcklqdq t1,hc1
- psrld $2,hc1
- pand ANMASK(%rip),hc1
- movd h1,t1
- paddd t1,hc1
- # hc2 = [ (m[22-25] >> 4) & 0x3ffffff, h2 + (m[6-9] >> 4) & 0x3ffffff ]
- movd 0x06(m),hc2
- movd 0x16(m),t1
- punpcklqdq t1,hc2
- psrld $4,hc2
- pand ANMASK(%rip),hc2
- movd h2,t1
- paddd t1,hc2
- # hc3 = [ (m[25-28] >> 6) & 0x3ffffff, h3 + (m[9-12] >> 6) & 0x3ffffff ]
- movd 0x09(m),hc3
- movd 0x19(m),t1
- punpcklqdq t1,hc3
- psrld $6,hc3
- pand ANMASK(%rip),hc3
- movd h3,t1
- paddd t1,hc3
- # hc4 = [ (m[28-31] >> 8) | (1<<24), h4 + (m[12-15] >> 8) | (1<<24) ]
- movd 0x0c(m),hc4
- movd 0x1c(m),t1
- punpcklqdq t1,hc4
- psrld $8,hc4
- por ORMASK(%rip),hc4
- movd h4,t1
- paddd t1,hc4
-
- # t1 = [ hc0[1] * r0, hc0[0] * u0 ]
- movdqa ru0,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * s4, hc1[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * s3, hc2[0] * v3 ]
- movdqa sv3,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * s2, hc3[0] * v2 ]
- movdqa sv2,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s1, hc4[0] * v1 ]
- movdqa sv1,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d0 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d0
-
- # t1 = [ hc0[1] * r1, hc0[0] * u1 ]
- movdqa ru1,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r0, hc1[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * s4, hc2[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * s3, hc3[0] * v3 ]
- movdqa sv3,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s2, hc4[0] * v2 ]
- movdqa sv2,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d1 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d1
-
- # t1 = [ hc0[1] * r2, hc0[0] * u2 ]
- movdqa ru2,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r1, hc1[0] * u1 ]
- movdqa ru1,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * r0, hc2[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * s4, hc3[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s3, hc4[0] * v3 ]
- movdqa sv3,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d2 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d2
-
- # t1 = [ hc0[1] * r3, hc0[0] * u3 ]
- movdqa ru3,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r2, hc1[0] * u2 ]
- movdqa ru2,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * r1, hc2[0] * u1 ]
- movdqa ru1,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * r0, hc3[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * s4, hc4[0] * v4 ]
- movdqa sv4,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d3 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d3
-
- # t1 = [ hc0[1] * r4, hc0[0] * u4 ]
- movdqa ru4,t1
- pmuludq hc0,t1
- # t1 += [ hc1[1] * r3, hc1[0] * u3 ]
- movdqa ru3,t2
- pmuludq hc1,t2
- paddq t2,t1
- # t1 += [ hc2[1] * r2, hc2[0] * u2 ]
- movdqa ru2,t2
- pmuludq hc2,t2
- paddq t2,t1
- # t1 += [ hc3[1] * r1, hc3[0] * u1 ]
- movdqa ru1,t2
- pmuludq hc3,t2
- paddq t2,t1
- # t1 += [ hc4[1] * r0, hc4[0] * u0 ]
- movdqa ru0,t2
- pmuludq hc4,t2
- paddq t2,t1
- # d4 = t1[0] + t1[1]
- movdqa t1,t2
- psrldq $8,t2
- paddq t2,t1
- movq t1,d4
-
- # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
- # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
- # amount. Careful: we must not assume the carry bits 'd0 >> 26',
- # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
- # integers. It's true in a single-block implementation, but not here.
-
- # d1 += d0 >> 26
- mov d0,%rax
- shr $26,%rax
- add %rax,d1
- # h0 = d0 & 0x3ffffff
- mov d0,%rbx
- and $0x3ffffff,%ebx
-
- # d2 += d1 >> 26
- mov d1,%rax
- shr $26,%rax
- add %rax,d2
- # h1 = d1 & 0x3ffffff
- mov d1,%rax
- and $0x3ffffff,%eax
- mov %eax,h1
-
- # d3 += d2 >> 26
- mov d2,%rax
- shr $26,%rax
- add %rax,d3
- # h2 = d2 & 0x3ffffff
- mov d2,%rax
- and $0x3ffffff,%eax
- mov %eax,h2
-
- # d4 += d3 >> 26
- mov d3,%rax
- shr $26,%rax
- add %rax,d4
- # h3 = d3 & 0x3ffffff
- mov d3,%rax
- and $0x3ffffff,%eax
- mov %eax,h3
-
- # h0 += (d4 >> 26) * 5
- mov d4,%rax
- shr $26,%rax
- lea (%rax,%rax,4),%rax
- add %rax,%rbx
- # h4 = d4 & 0x3ffffff
- mov d4,%rax
- and $0x3ffffff,%eax
- mov %eax,h4
-
- # h1 += h0 >> 26
- mov %rbx,%rax
- shr $26,%rax
- add %eax,h1
- # h0 = h0 & 0x3ffffff
- andl $0x3ffffff,%ebx
- mov %ebx,h0
-
- add $0x20,m
- dec %rcx
- jnz .Ldoblock2
-
- pop %r13
- pop %r12
- pop %rbx
- ret
-SYM_FUNC_END(poly1305_2block_sse2)
diff --git a/arch/x86/crypto/poly1305-x86_64-cryptogams.pl b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
new file mode 100644
index 000000000000..7a6b5380a46f
--- /dev/null
+++ b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
@@ -0,0 +1,4265 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+#
+# Copyright (C) 2017-2018 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
+# Copyright (C) 2017-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2006-2017 CRYPTOGAMS by <appro@openssl.org>. All Rights Reserved.
+#
+# This code is taken from the OpenSSL project but the author, Andy Polyakov,
+# has relicensed it under the licenses specified in the SPDX header above.
+# The original headers, including the original license headers, are
+# included below for completeness.
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# This module implements Poly1305 hash for x86_64.
+#
+# March 2015
+#
+# Initial release.
+#
+# December 2016
+#
+# Add AVX512F+VL+BW code path.
+#
+# November 2017
+#
+# Convert AVX512F+VL+BW code path to pure AVX512F, so that it can be
+# executed even on Knights Landing. Trigger for modification was
+# observation that AVX512 code paths can negatively affect overall
+# Skylake-X system performance. Since we are likely to suppress
+# AVX512F capability flag [at least on Skylake-X], conversion serves
+# as kind of "investment protection". Note that next *lake processor,
+# Cannonlake, has AVX512IFMA code path to execute...
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone,
+# measured with rdtsc at fixed clock frequency.
+#
+# IALU/gcc-4.8(*) AVX(**) AVX2 AVX-512
+# P4 4.46/+120% -
+# Core 2 2.41/+90% -
+# Westmere 1.88/+120% -
+# Sandy Bridge 1.39/+140% 1.10
+# Haswell 1.14/+175% 1.11 0.65
+# Skylake[-X] 1.13/+120% 0.96 0.51 [0.35]
+# Silvermont 2.83/+95% -
+# Knights L 3.60/? 1.65 1.10 0.41(***)
+# Goldmont 1.70/+180% -
+# VIA Nano 1.82/+150% -
+# Sledgehammer 1.38/+160% -
+# Bulldozer 2.30/+130% 0.97
+# Ryzen 1.15/+200% 1.08 1.18
+#
+# (*) improvement coefficients relative to clang are more modest and
+# are ~50% on most processors, in both cases we are comparing to
+# __int128 code;
+# (**) SSE2 implementation was attempted, but among non-AVX processors
+# it was faster than integer-only code only on older Intel P4 and
+# Core processors, 50-30%, less newer processor is, but slower on
+# contemporary ones, for example almost 2x slower on Atom, and as
+# former are naturally disappearing, SSE2 is deemed unnecessary;
+# (***) strangely enough performance seems to vary from core to core,
+# listed result is best case;
+
+$flavour = shift;
+$output = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+$kernel=0; $kernel=1 if (!$flavour && !$output);
+
+if (!$kernel) {
+ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+ ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
+ ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
+ die "can't locate x86_64-xlate.pl";
+
+ open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
+ *STDOUT=*OUT;
+
+ if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
+ =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
+ $avx = ($1>=2.19) + ($1>=2.22) + ($1>=2.25);
+ }
+
+ if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
+ `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)(?:\.([0-9]+))?/) {
+ $avx = ($1>=2.09) + ($1>=2.10) + ($1>=2.12);
+ $avx += 1 if ($1==2.11 && $2>=8);
+ }
+
+ if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
+ `ml64 2>&1` =~ /Version ([0-9]+)\./) {
+ $avx = ($1>=10) + ($1>=11);
+ }
+
+ if (!$avx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|.*based on LLVM) ([3-9]\.[0-9]+)/) {
+ $avx = ($2>=3.0) + ($2>3.0);
+ }
+} else {
+ $avx = 4; # The kernel uses ifdefs for this.
+}
+
+sub declare_function() {
+ my ($name, $align, $nargs) = @_;
+ if($kernel) {
+ $code .= ".align $align\n";
+ $code .= "SYM_FUNC_START($name)\n";
+ $code .= ".L$name:\n";
+ } else {
+ $code .= ".globl $name\n";
+ $code .= ".type $name,\@function,$nargs\n";
+ $code .= ".align $align\n";
+ $code .= "$name:\n";
+ }
+}
+
+sub end_function() {
+ my ($name) = @_;
+ if($kernel) {
+ $code .= "SYM_FUNC_END($name)\n";
+ } else {
+ $code .= ".size $name,.-$name\n";
+ }
+}
+
+$code.=<<___ if $kernel;
+#include <linux/linkage.h>
+___
+
+if ($avx) {
+$code.=<<___ if $kernel;
+.section .rodata
+___
+$code.=<<___;
+.align 64
+.Lconst:
+.Lmask24:
+.long 0x0ffffff,0,0x0ffffff,0,0x0ffffff,0,0x0ffffff,0
+.L129:
+.long `1<<24`,0,`1<<24`,0,`1<<24`,0,`1<<24`,0
+.Lmask26:
+.long 0x3ffffff,0,0x3ffffff,0,0x3ffffff,0,0x3ffffff,0
+.Lpermd_avx2:
+.long 2,2,2,3,2,0,2,1
+.Lpermd_avx512:
+.long 0,0,0,1, 0,2,0,3, 0,4,0,5, 0,6,0,7
+
+.L2_44_inp_permd:
+.long 0,1,1,2,2,3,7,7
+.L2_44_inp_shift:
+.quad 0,12,24,64
+.L2_44_mask:
+.quad 0xfffffffffff,0xfffffffffff,0x3ffffffffff,0xffffffffffffffff
+.L2_44_shift_rgt:
+.quad 44,44,42,64
+.L2_44_shift_lft:
+.quad 8,8,10,64
+
+.align 64
+.Lx_mask44:
+.quad 0xfffffffffff,0xfffffffffff,0xfffffffffff,0xfffffffffff
+.quad 0xfffffffffff,0xfffffffffff,0xfffffffffff,0xfffffffffff
+.Lx_mask42:
+.quad 0x3ffffffffff,0x3ffffffffff,0x3ffffffffff,0x3ffffffffff
+.quad 0x3ffffffffff,0x3ffffffffff,0x3ffffffffff,0x3ffffffffff
+___
+}
+$code.=<<___ if (!$kernel);
+.asciz "Poly1305 for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.align 16
+___
+
+my ($ctx,$inp,$len,$padbit)=("%rdi","%rsi","%rdx","%rcx");
+my ($mac,$nonce)=($inp,$len); # *_emit arguments
+my ($d1,$d2,$d3, $r0,$r1,$s1)=("%r8","%r9","%rdi","%r11","%r12","%r13");
+my ($h0,$h1,$h2)=("%r14","%rbx","%r10");
+
+sub poly1305_iteration {
+# input: copy of $r1 in %rax, $h0-$h2, $r0-$r1
+# output: $h0-$h2 *= $r0-$r1
+$code.=<<___;
+ mulq $h0 # h0*r1
+ mov %rax,$d2
+ mov $r0,%rax
+ mov %rdx,$d3
+
+ mulq $h0 # h0*r0
+ mov %rax,$h0 # future $h0
+ mov $r0,%rax
+ mov %rdx,$d1
+
+ mulq $h1 # h1*r0
+ add %rax,$d2
+ mov $s1,%rax
+ adc %rdx,$d3
+
+ mulq $h1 # h1*s1
+ mov $h2,$h1 # borrow $h1
+ add %rax,$h0
+ adc %rdx,$d1
+
+ imulq $s1,$h1 # h2*s1
+ add $h1,$d2
+ mov $d1,$h1
+ adc \$0,$d3
+
+ imulq $r0,$h2 # h2*r0
+ add $d2,$h1
+ mov \$-4,%rax # mask value
+ adc $h2,$d3
+
+ and $d3,%rax # last reduction step
+ mov $d3,$h2
+ shr \$2,$d3
+ and \$3,$h2
+ add $d3,%rax
+ add %rax,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+___
+}
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int64 h[3]; # current hash value base 2^64
+# unsigned __int64 r[2]; # key value base 2^64
+
+$code.=<<___;
+.text
+___
+$code.=<<___ if (!$kernel);
+.extern OPENSSL_ia32cap_P
+
+.globl poly1305_init_x86_64
+.hidden poly1305_init_x86_64
+.globl poly1305_blocks_x86_64
+.hidden poly1305_blocks_x86_64
+.globl poly1305_emit_x86_64
+.hidden poly1305_emit_x86_64
+___
+&declare_function("poly1305_init_x86_64", 32, 3);
+$code.=<<___;
+ xor %rax,%rax
+ mov %rax,0($ctx) # initialize hash value
+ mov %rax,8($ctx)
+ mov %rax,16($ctx)
+
+ cmp \$0,$inp
+ je .Lno_key
+___
+$code.=<<___ if (!$kernel);
+ lea poly1305_blocks_x86_64(%rip),%r10
+ lea poly1305_emit_x86_64(%rip),%r11
+___
+$code.=<<___ if (!$kernel && $avx);
+ mov OPENSSL_ia32cap_P+4(%rip),%r9
+ lea poly1305_blocks_avx(%rip),%rax
+ lea poly1305_emit_avx(%rip),%rcx
+ bt \$`60-32`,%r9 # AVX?
+ cmovc %rax,%r10
+ cmovc %rcx,%r11
+___
+$code.=<<___ if (!$kernel && $avx>1);
+ lea poly1305_blocks_avx2(%rip),%rax
+ bt \$`5+32`,%r9 # AVX2?
+ cmovc %rax,%r10
+___
+$code.=<<___ if (!$kernel && $avx>3);
+ mov \$`(1<<31|1<<21|1<<16)`,%rax
+ shr \$32,%r9
+ and %rax,%r9
+ cmp %rax,%r9
+ je .Linit_base2_44
+___
+$code.=<<___;
+ mov \$0x0ffffffc0fffffff,%rax
+ mov \$0x0ffffffc0ffffffc,%rcx
+ and 0($inp),%rax
+ and 8($inp),%rcx
+ mov %rax,24($ctx)
+ mov %rcx,32($ctx)
+___
+$code.=<<___ if (!$kernel && $flavour !~ /elf32/);
+ mov %r10,0(%rdx)
+ mov %r11,8(%rdx)
+___
+$code.=<<___ if (!$kernel && $flavour =~ /elf32/);
+ mov %r10d,0(%rdx)
+ mov %r11d,4(%rdx)
+___
+$code.=<<___;
+ mov \$1,%eax
+.Lno_key:
+ ret
+___
+&end_function("poly1305_init_x86_64");
+
+&declare_function("poly1305_blocks_x86_64", 32, 4);
+$code.=<<___;
+.cfi_startproc
+.Lblocks:
+ shr \$4,$len
+ jz .Lno_data # too short
+
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+ push $ctx
+.cfi_push $ctx
+.Lblocks_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2
+
+ mov $s1,$r1
+ shr \$2,$s1
+ mov $r1,%rax
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+ jmp .Loop
+
+.align 32
+.Loop:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+___
+
+ &poly1305_iteration();
+
+$code.=<<___;
+ mov $r1,%rax
+ dec %r15 # len-=16
+ jnz .Loop
+
+ mov 0(%rsp),$ctx
+.cfi_restore $ctx
+
+ mov $h0,0($ctx) # store hash value
+ mov $h1,8($ctx)
+ mov $h2,16($ctx)
+
+ mov 8(%rsp),%r15
+.cfi_restore %r15
+ mov 16(%rsp),%r14
+.cfi_restore %r14
+ mov 24(%rsp),%r13
+.cfi_restore %r13
+ mov 32(%rsp),%r12
+.cfi_restore %r12
+ mov 40(%rsp),%rbx
+.cfi_restore %rbx
+ lea 48(%rsp),%rsp
+.cfi_adjust_cfa_offset -48
+.Lno_data:
+.Lblocks_epilogue:
+ ret
+.cfi_endproc
+___
+&end_function("poly1305_blocks_x86_64");
+
+&declare_function("poly1305_emit_x86_64", 32, 3);
+$code.=<<___;
+.Lemit:
+ mov 0($ctx),%r8 # load hash value
+ mov 8($ctx),%r9
+ mov 16($ctx),%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ ret
+___
+&end_function("poly1305_emit_x86_64");
+if ($avx) {
+
+if($kernel) {
+ $code .= "#ifdef CONFIG_AS_AVX\n";
+}
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int32 h[5]; # current hash value base 2^26
+# unsigned __int32 is_base2_26;
+# unsigned __int64 r[2]; # key value base 2^64
+# unsigned __int64 pad;
+# struct { unsigned __int32 r^2, r^1, r^4, r^3; } r[9];
+#
+# where r^n are base 2^26 digits of degrees of multiplier key. There are
+# 5 digits, but last four are interleaved with multiples of 5, totalling
+# in 9 elements: r0, r1, 5*r1, r2, 5*r2, r3, 5*r3, r4, 5*r4.
+
+my ($H0,$H1,$H2,$H3,$H4, $T0,$T1,$T2,$T3,$T4, $D0,$D1,$D2,$D3,$D4, $MASK) =
+ map("%xmm$_",(0..15));
+
+$code.=<<___;
+.type __poly1305_block,\@abi-omnipotent
+.align 32
+__poly1305_block:
+ push $ctx
+___
+ &poly1305_iteration();
+$code.=<<___;
+ pop $ctx
+ ret
+.size __poly1305_block,.-__poly1305_block
+
+.type __poly1305_init_avx,\@abi-omnipotent
+.align 32
+__poly1305_init_avx:
+ push %rbp
+ mov %rsp,%rbp
+ mov $r0,$h0
+ mov $r1,$h1
+ xor $h2,$h2
+
+ lea 48+64($ctx),$ctx # size optimization
+
+ mov $r1,%rax
+ call __poly1305_block # r^2
+
+ mov \$0x3ffffff,%eax # save interleaved r^2 and r base 2^26
+ mov \$0x3ffffff,%edx
+ mov $h0,$d1
+ and $h0#d,%eax
+ mov $r0,$d2
+ and $r0#d,%edx
+ mov %eax,`16*0+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*0+4-64`($ctx)
+ shr \$26,$d2
+
+ mov \$0x3ffffff,%eax
+ mov \$0x3ffffff,%edx
+ and $d1#d,%eax
+ and $d2#d,%edx
+ mov %eax,`16*1+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*1+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*2+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*2+4-64`($ctx)
+ shr \$26,$d2
+
+ mov $h1,%rax
+ mov $r1,%rdx
+ shl \$12,%rax
+ shl \$12,%rdx
+ or $d1,%rax
+ or $d2,%rdx
+ and \$0x3ffffff,%eax
+ and \$0x3ffffff,%edx
+ mov %eax,`16*3+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*3+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*4+0-64`($ctx)
+ mov $h1,$d1
+ mov %edx,`16*4+4-64`($ctx)
+ mov $r1,$d2
+
+ mov \$0x3ffffff,%eax
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ shr \$14,$d2
+ and $d1#d,%eax
+ and $d2#d,%edx
+ mov %eax,`16*5+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*5+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*6+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*6+4-64`($ctx)
+ shr \$26,$d2
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+0-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d2#d,`16*7+4-64`($ctx)
+ lea ($d2,$d2,4),$d2 # *5
+ mov $d1#d,`16*8+0-64`($ctx)
+ mov $d2#d,`16*8+4-64`($ctx)
+
+ mov $r1,%rax
+ call __poly1305_block # r^3
+
+ mov \$0x3ffffff,%eax # save r^3 base 2^26
+ mov $h0,$d1
+ and $h0#d,%eax
+ shr \$26,$d1
+ mov %eax,`16*0+12-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ and $d1#d,%edx
+ mov %edx,`16*1+12-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*2+12-64`($ctx)
+
+ mov $h1,%rax
+ shl \$12,%rax
+ or $d1,%rax
+ and \$0x3ffffff,%eax
+ mov %eax,`16*3+12-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov $h1,$d1
+ mov %eax,`16*4+12-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ and $d1#d,%edx
+ mov %edx,`16*5+12-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*6+12-64`($ctx)
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+12-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d1#d,`16*8+12-64`($ctx)
+
+ mov $r1,%rax
+ call __poly1305_block # r^4
+
+ mov \$0x3ffffff,%eax # save r^4 base 2^26
+ mov $h0,$d1
+ and $h0#d,%eax
+ shr \$26,$d1
+ mov %eax,`16*0+8-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ and $d1#d,%edx
+ mov %edx,`16*1+8-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*2+8-64`($ctx)
+
+ mov $h1,%rax
+ shl \$12,%rax
+ or $d1,%rax
+ and \$0x3ffffff,%eax
+ mov %eax,`16*3+8-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov $h1,$d1
+ mov %eax,`16*4+8-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ and $d1#d,%edx
+ mov %edx,`16*5+8-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*6+8-64`($ctx)
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+8-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d1#d,`16*8+8-64`($ctx)
+
+ lea -48-64($ctx),$ctx # size [de-]optimization
+ pop %rbp
+ ret
+.size __poly1305_init_avx,.-__poly1305_init_avx
+___
+
+&declare_function("poly1305_blocks_avx", 32, 4);
+$code.=<<___;
+.cfi_startproc
+ mov 20($ctx),%r8d # is_base2_26
+ cmp \$128,$len
+ jae .Lblocks_avx
+ test %r8d,%r8d
+ jz .Lblocks
+
+.Lblocks_avx:
+ and \$-16,$len
+ jz .Lno_data_avx
+
+ vzeroupper
+
+ test %r8d,%r8d
+ jz .Lbase2_64_avx
+
+ test \$31,$len
+ jz .Leven_avx
+
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lblocks_avx_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 0($ctx),$d1 # load hash value
+ mov 8($ctx),$d2
+ mov 16($ctx),$h2#d
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ ################################# base 2^26 -> base 2^64
+ mov $d1#d,$h0#d
+ and \$`-1*(1<<31)`,$d1
+ mov $d2,$r1 # borrow $r1
+ mov $d2#d,$h1#d
+ and \$`-1*(1<<31)`,$d2
+
+ shr \$6,$d1
+ shl \$52,$r1
+ add $d1,$h0
+ shr \$12,$h1
+ shr \$18,$d2
+ add $r1,$h0
+ adc $d2,$h1
+
+ mov $h2,$d1
+ shl \$40,$d1
+ shr \$24,$h2
+ add $d1,$h1
+ adc \$0,$h2 # can be partially reduced...
+
+ mov \$-4,$d2 # ... so reduce
+ mov $h2,$d1
+ and $h2,$d2
+ shr \$2,$d1
+ and \$3,$h2
+ add $d2,$d1 # =*5
+ add $d1,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+
+ call __poly1305_block
+
+ test $padbit,$padbit # if $padbit is zero,
+ jz .Lstore_base2_64_avx # store hash in base 2^64 format
+
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$r0
+ mov $h1,$r1
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$r0
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $r0,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$r1
+ and \$0x3ffffff,$h1 # h[3]
+ or $r1,$h2 # h[4]
+
+ sub \$16,%r15
+ jz .Lstore_base2_26_avx
+
+ vmovd %rax#d,$H0
+ vmovd %rdx#d,$H1
+ vmovd $h0#d,$H2
+ vmovd $h1#d,$H3
+ vmovd $h2#d,$H4
+ jmp .Lproceed_avx
+
+.align 32
+.Lstore_base2_64_avx:
+ mov $h0,0($ctx)
+ mov $h1,8($ctx)
+ mov $h2,16($ctx) # note that is_base2_26 is zeroed
+ jmp .Ldone_avx
+
+.align 16
+.Lstore_base2_26_avx:
+ mov %rax#d,0($ctx) # store hash value base 2^26
+ mov %rdx#d,4($ctx)
+ mov $h0#d,8($ctx)
+ mov $h1#d,12($ctx)
+ mov $h2#d,16($ctx)
+.align 16
+.Ldone_avx:
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lno_data_avx:
+.Lblocks_avx_epilogue:
+ ret
+.cfi_endproc
+
+.align 32
+.Lbase2_64_avx:
+.cfi_startproc
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lbase2_64_avx_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2#d
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ test \$31,$len
+ jz .Linit_avx
+
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+
+.Linit_avx:
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$d1
+ mov $h1,$d2
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$d1
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $d1,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$d2
+ and \$0x3ffffff,$h1 # h[3]
+ or $d2,$h2 # h[4]
+
+ vmovd %rax#d,$H0
+ vmovd %rdx#d,$H1
+ vmovd $h0#d,$H2
+ vmovd $h1#d,$H3
+ vmovd $h2#d,$H4
+ movl \$1,20($ctx) # set is_base2_26
+
+ call __poly1305_init_avx
+
+.Lproceed_avx:
+ mov %r15,$len
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lbase2_64_avx_epilogue:
+ jmp .Ldo_avx
+.cfi_endproc
+
+.align 32
+.Leven_avx:
+.cfi_startproc
+ vmovd 4*0($ctx),$H0 # load hash value
+ vmovd 4*1($ctx),$H1
+ vmovd 4*2($ctx),$H2
+ vmovd 4*3($ctx),$H3
+ vmovd 4*4($ctx),$H4
+
+.Ldo_avx:
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ and \$-32,%rsp
+ sub \$-8,%rsp
+ lea -0x58(%rsp),%r11
+ sub \$0x178,%rsp
+___
+$code.=<<___ if ($win64);
+ lea -0xf8(%rsp),%r11
+ sub \$0x218,%rsp
+ vmovdqa %xmm6,0x50(%r11)
+ vmovdqa %xmm7,0x60(%r11)
+ vmovdqa %xmm8,0x70(%r11)
+ vmovdqa %xmm9,0x80(%r11)
+ vmovdqa %xmm10,0x90(%r11)
+ vmovdqa %xmm11,0xa0(%r11)
+ vmovdqa %xmm12,0xb0(%r11)
+ vmovdqa %xmm13,0xc0(%r11)
+ vmovdqa %xmm14,0xd0(%r11)
+ vmovdqa %xmm15,0xe0(%r11)
+.Ldo_avx_body:
+___
+$code.=<<___;
+ sub \$64,$len
+ lea -32($inp),%rax
+ cmovc %rax,$inp
+
+ vmovdqu `16*3`($ctx),$D4 # preload r0^2
+ lea `16*3+64`($ctx),$ctx # size optimization
+ lea .Lconst(%rip),%rcx
+
+ ################################################################
+ # load input
+ vmovdqu 16*2($inp),$T0
+ vmovdqu 16*3($inp),$T1
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+
+ vpsrlq \$40,$T4,$T4 # 4
+ vpsrlq \$26,$T0,$T1
+ vpand $MASK,$T0,$T0 # 0
+ vpsrlq \$4,$T3,$T2
+ vpand $MASK,$T1,$T1 # 1
+ vpsrlq \$30,$T3,$T3
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ jbe .Lskip_loop_avx
+
+ # expand and copy pre-calculated table to stack
+ vmovdqu `16*1-64`($ctx),$D1
+ vmovdqu `16*2-64`($ctx),$D2
+ vpshufd \$0xEE,$D4,$D3 # 34xx -> 3434
+ vpshufd \$0x44,$D4,$D0 # xx12 -> 1212
+ vmovdqa $D3,-0x90(%r11)
+ vmovdqa $D0,0x00(%rsp)
+ vpshufd \$0xEE,$D1,$D4
+ vmovdqu `16*3-64`($ctx),$D0
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D4,-0x80(%r11)
+ vmovdqa $D1,0x10(%rsp)
+ vpshufd \$0xEE,$D2,$D3
+ vmovdqu `16*4-64`($ctx),$D1
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D3,-0x70(%r11)
+ vmovdqa $D2,0x20(%rsp)
+ vpshufd \$0xEE,$D0,$D4
+ vmovdqu `16*5-64`($ctx),$D2
+ vpshufd \$0x44,$D0,$D0
+ vmovdqa $D4,-0x60(%r11)
+ vmovdqa $D0,0x30(%rsp)
+ vpshufd \$0xEE,$D1,$D3
+ vmovdqu `16*6-64`($ctx),$D0
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D3,-0x50(%r11)
+ vmovdqa $D1,0x40(%rsp)
+ vpshufd \$0xEE,$D2,$D4
+ vmovdqu `16*7-64`($ctx),$D1
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D4,-0x40(%r11)
+ vmovdqa $D2,0x50(%rsp)
+ vpshufd \$0xEE,$D0,$D3
+ vmovdqu `16*8-64`($ctx),$D2
+ vpshufd \$0x44,$D0,$D0
+ vmovdqa $D3,-0x30(%r11)
+ vmovdqa $D0,0x60(%rsp)
+ vpshufd \$0xEE,$D1,$D4
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D4,-0x20(%r11)
+ vmovdqa $D1,0x70(%rsp)
+ vpshufd \$0xEE,$D2,$D3
+ vmovdqa 0x00(%rsp),$D4 # preload r0^2
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D3,-0x10(%r11)
+ vmovdqa $D2,0x80(%rsp)
+
+ jmp .Loop_avx
+
+.align 32
+.Loop_avx:
+ ################################################################
+ # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
+ # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
+ # \___________________/
+ # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
+ # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
+ # \___________________/ \____________________/
+ #
+ # Note that we start with inp[2:3]*r^2. This is because it
+ # doesn't depend on reduction in previous iteration.
+ ################################################################
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # though note that $Tx and $Hx are "reversed" in this section,
+ # and $D4 is preloaded with r0^2...
+
+ vpmuludq $T0,$D4,$D0 # d0 = h0*r0
+ vpmuludq $T1,$D4,$D1 # d1 = h1*r0
+ vmovdqa $H2,0x20(%r11) # offload hash
+ vpmuludq $T2,$D4,$D2 # d3 = h2*r0
+ vmovdqa 0x10(%rsp),$H2 # r1^2
+ vpmuludq $T3,$D4,$D3 # d3 = h3*r0
+ vpmuludq $T4,$D4,$D4 # d4 = h4*r0
+
+ vmovdqa $H0,0x00(%r11) #
+ vpmuludq 0x20(%rsp),$T4,$H0 # h4*s1
+ vmovdqa $H1,0x10(%r11) #
+ vpmuludq $T3,$H2,$H1 # h3*r1
+ vpaddq $H0,$D0,$D0 # d0 += h4*s1
+ vpaddq $H1,$D4,$D4 # d4 += h3*r1
+ vmovdqa $H3,0x30(%r11) #
+ vpmuludq $T2,$H2,$H0 # h2*r1
+ vpmuludq $T1,$H2,$H1 # h1*r1
+ vpaddq $H0,$D3,$D3 # d3 += h2*r1
+ vmovdqa 0x30(%rsp),$H3 # r2^2
+ vpaddq $H1,$D2,$D2 # d2 += h1*r1
+ vmovdqa $H4,0x40(%r11) #
+ vpmuludq $T0,$H2,$H2 # h0*r1
+ vpmuludq $T2,$H3,$H0 # h2*r2
+ vpaddq $H2,$D1,$D1 # d1 += h0*r1
+
+ vmovdqa 0x40(%rsp),$H4 # s2^2
+ vpaddq $H0,$D4,$D4 # d4 += h2*r2
+ vpmuludq $T1,$H3,$H1 # h1*r2
+ vpmuludq $T0,$H3,$H3 # h0*r2
+ vpaddq $H1,$D3,$D3 # d3 += h1*r2
+ vmovdqa 0x50(%rsp),$H2 # r3^2
+ vpaddq $H3,$D2,$D2 # d2 += h0*r2
+ vpmuludq $T4,$H4,$H0 # h4*s2
+ vpmuludq $T3,$H4,$H4 # h3*s2
+ vpaddq $H0,$D1,$D1 # d1 += h4*s2
+ vmovdqa 0x60(%rsp),$H3 # s3^2
+ vpaddq $H4,$D0,$D0 # d0 += h3*s2
+
+ vmovdqa 0x80(%rsp),$H4 # s4^2
+ vpmuludq $T1,$H2,$H1 # h1*r3
+ vpmuludq $T0,$H2,$H2 # h0*r3
+ vpaddq $H1,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $T4,$H3,$H0 # h4*s3
+ vpmuludq $T3,$H3,$H1 # h3*s3
+ vpaddq $H0,$D2,$D2 # d2 += h4*s3
+ vmovdqu 16*0($inp),$H0 # load input
+ vpaddq $H1,$D1,$D1 # d1 += h3*s3
+ vpmuludq $T2,$H3,$H3 # h2*s3
+ vpmuludq $T2,$H4,$T2 # h2*s4
+ vpaddq $H3,$D0,$D0 # d0 += h2*s3
+
+ vmovdqu 16*1($inp),$H1 #
+ vpaddq $T2,$D1,$D1 # d1 += h2*s4
+ vpmuludq $T3,$H4,$T3 # h3*s4
+ vpmuludq $T4,$H4,$T4 # h4*s4
+ vpsrldq \$6,$H0,$H2 # splat input
+ vpaddq $T3,$D2,$D2 # d2 += h3*s4
+ vpaddq $T4,$D3,$D3 # d3 += h4*s4
+ vpsrldq \$6,$H1,$H3 #
+ vpmuludq 0x70(%rsp),$T0,$T4 # h0*r4
+ vpmuludq $T1,$H4,$T0 # h1*s4
+ vpunpckhqdq $H1,$H0,$H4 # 4
+ vpaddq $T4,$D4,$D4 # d4 += h0*r4
+ vmovdqa -0x90(%r11),$T4 # r0^4
+ vpaddq $T0,$D0,$D0 # d0 += h1*s4
+
+ vpunpcklqdq $H1,$H0,$H0 # 0:1
+ vpunpcklqdq $H3,$H2,$H3 # 2:3
+
+ #vpsrlq \$40,$H4,$H4 # 4
+ vpsrldq \$`40/8`,$H4,$H4 # 4
+ vpsrlq \$26,$H0,$H1
+ vpand $MASK,$H0,$H0 # 0
+ vpsrlq \$4,$H3,$H2
+ vpand $MASK,$H1,$H1 # 1
+ vpand 0(%rcx),$H4,$H4 # .Lmask24
+ vpsrlq \$30,$H3,$H3
+ vpand $MASK,$H2,$H2 # 2
+ vpand $MASK,$H3,$H3 # 3
+ vpor 32(%rcx),$H4,$H4 # padbit, yes, always
+
+ vpaddq 0x00(%r11),$H0,$H0 # add hash value
+ vpaddq 0x10(%r11),$H1,$H1
+ vpaddq 0x20(%r11),$H2,$H2
+ vpaddq 0x30(%r11),$H3,$H3
+ vpaddq 0x40(%r11),$H4,$H4
+
+ lea 16*2($inp),%rax
+ lea 16*4($inp),$inp
+ sub \$64,$len
+ cmovc %rax,$inp
+
+ ################################################################
+ # Now we accumulate (inp[0:1]+hash)*r^4
+ ################################################################
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ vpmuludq $H0,$T4,$T0 # h0*r0
+ vpmuludq $H1,$T4,$T1 # h1*r0
+ vpaddq $T0,$D0,$D0
+ vpaddq $T1,$D1,$D1
+ vmovdqa -0x80(%r11),$T2 # r1^4
+ vpmuludq $H2,$T4,$T0 # h2*r0
+ vpmuludq $H3,$T4,$T1 # h3*r0
+ vpaddq $T0,$D2,$D2
+ vpaddq $T1,$D3,$D3
+ vpmuludq $H4,$T4,$T4 # h4*r0
+ vpmuludq -0x70(%r11),$H4,$T0 # h4*s1
+ vpaddq $T4,$D4,$D4
+
+ vpaddq $T0,$D0,$D0 # d0 += h4*s1
+ vpmuludq $H2,$T2,$T1 # h2*r1
+ vpmuludq $H3,$T2,$T0 # h3*r1
+ vpaddq $T1,$D3,$D3 # d3 += h2*r1
+ vmovdqa -0x60(%r11),$T3 # r2^4
+ vpaddq $T0,$D4,$D4 # d4 += h3*r1
+ vpmuludq $H1,$T2,$T1 # h1*r1
+ vpmuludq $H0,$T2,$T2 # h0*r1
+ vpaddq $T1,$D2,$D2 # d2 += h1*r1
+ vpaddq $T2,$D1,$D1 # d1 += h0*r1
+
+ vmovdqa -0x50(%r11),$T4 # s2^4
+ vpmuludq $H2,$T3,$T0 # h2*r2
+ vpmuludq $H1,$T3,$T1 # h1*r2
+ vpaddq $T0,$D4,$D4 # d4 += h2*r2
+ vpaddq $T1,$D3,$D3 # d3 += h1*r2
+ vmovdqa -0x40(%r11),$T2 # r3^4
+ vpmuludq $H0,$T3,$T3 # h0*r2
+ vpmuludq $H4,$T4,$T0 # h4*s2
+ vpaddq $T3,$D2,$D2 # d2 += h0*r2
+ vpaddq $T0,$D1,$D1 # d1 += h4*s2
+ vmovdqa -0x30(%r11),$T3 # s3^4
+ vpmuludq $H3,$T4,$T4 # h3*s2
+ vpmuludq $H1,$T2,$T1 # h1*r3
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+
+ vmovdqa -0x10(%r11),$T4 # s4^4
+ vpaddq $T1,$D4,$D4 # d4 += h1*r3
+ vpmuludq $H0,$T2,$T2 # h0*r3
+ vpmuludq $H4,$T3,$T0 # h4*s3
+ vpaddq $T2,$D3,$D3 # d3 += h0*r3
+ vpaddq $T0,$D2,$D2 # d2 += h4*s3
+ vmovdqu 16*2($inp),$T0 # load input
+ vpmuludq $H3,$T3,$T2 # h3*s3
+ vpmuludq $H2,$T3,$T3 # h2*s3
+ vpaddq $T2,$D1,$D1 # d1 += h3*s3
+ vmovdqu 16*3($inp),$T1 #
+ vpaddq $T3,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $H2,$T4,$H2 # h2*s4
+ vpmuludq $H3,$T4,$H3 # h3*s4
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpaddq $H2,$D1,$D1 # d1 += h2*s4
+ vpmuludq $H4,$T4,$H4 # h4*s4
+ vpsrldq \$6,$T1,$T3 #
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*s4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*s4
+ vpmuludq -0x20(%r11),$H0,$H4 # h0*r4
+ vpmuludq $H1,$T4,$H0
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+
+ #vpsrlq \$40,$T4,$T4 # 4
+ vpsrldq \$`40/8`,$T4,$T4 # 4
+ vpsrlq \$26,$T0,$T1
+ vmovdqa 0x00(%rsp),$D4 # preload r0^2
+ vpand $MASK,$T0,$T0 # 0
+ vpsrlq \$4,$T3,$T2
+ vpand $MASK,$T1,$T1 # 1
+ vpand 0(%rcx),$T4,$T4 # .Lmask24
+ vpsrlq \$30,$T3,$T3
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ ################################################################
+ # lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
+ # and P. Schwabe
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D0
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D0,$H0,$H0
+ vpsllq \$2,$D0,$D0
+ vpaddq $D0,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ ja .Loop_avx
+
+.Lskip_loop_avx:
+ ################################################################
+ # multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
+
+ vpshufd \$0x10,$D4,$D4 # r0^n, xx12 -> x1x2
+ add \$32,$len
+ jnz .Long_tail_avx
+
+ vpaddq $H2,$T2,$T2
+ vpaddq $H0,$T0,$T0
+ vpaddq $H1,$T1,$T1
+ vpaddq $H3,$T3,$T3
+ vpaddq $H4,$T4,$T4
+
+.Long_tail_avx:
+ vmovdqa $H2,0x20(%r11)
+ vmovdqa $H0,0x00(%r11)
+ vmovdqa $H1,0x10(%r11)
+ vmovdqa $H3,0x30(%r11)
+ vmovdqa $H4,0x40(%r11)
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ vpmuludq $T2,$D4,$D2 # d2 = h2*r0
+ vpmuludq $T0,$D4,$D0 # d0 = h0*r0
+ vpshufd \$0x10,`16*1-64`($ctx),$H2 # r1^n
+ vpmuludq $T1,$D4,$D1 # d1 = h1*r0
+ vpmuludq $T3,$D4,$D3 # d3 = h3*r0
+ vpmuludq $T4,$D4,$D4 # d4 = h4*r0
+
+ vpmuludq $T3,$H2,$H0 # h3*r1
+ vpaddq $H0,$D4,$D4 # d4 += h3*r1
+ vpshufd \$0x10,`16*2-64`($ctx),$H3 # s1^n
+ vpmuludq $T2,$H2,$H1 # h2*r1
+ vpaddq $H1,$D3,$D3 # d3 += h2*r1
+ vpshufd \$0x10,`16*3-64`($ctx),$H4 # r2^n
+ vpmuludq $T1,$H2,$H0 # h1*r1
+ vpaddq $H0,$D2,$D2 # d2 += h1*r1
+ vpmuludq $T0,$H2,$H2 # h0*r1
+ vpaddq $H2,$D1,$D1 # d1 += h0*r1
+ vpmuludq $T4,$H3,$H3 # h4*s1
+ vpaddq $H3,$D0,$D0 # d0 += h4*s1
+
+ vpshufd \$0x10,`16*4-64`($ctx),$H2 # s2^n
+ vpmuludq $T2,$H4,$H1 # h2*r2
+ vpaddq $H1,$D4,$D4 # d4 += h2*r2
+ vpmuludq $T1,$H4,$H0 # h1*r2
+ vpaddq $H0,$D3,$D3 # d3 += h1*r2
+ vpshufd \$0x10,`16*5-64`($ctx),$H3 # r3^n
+ vpmuludq $T0,$H4,$H4 # h0*r2
+ vpaddq $H4,$D2,$D2 # d2 += h0*r2
+ vpmuludq $T4,$H2,$H1 # h4*s2
+ vpaddq $H1,$D1,$D1 # d1 += h4*s2
+ vpshufd \$0x10,`16*6-64`($ctx),$H4 # s3^n
+ vpmuludq $T3,$H2,$H2 # h3*s2
+ vpaddq $H2,$D0,$D0 # d0 += h3*s2
+
+ vpmuludq $T1,$H3,$H0 # h1*r3
+ vpaddq $H0,$D4,$D4 # d4 += h1*r3
+ vpmuludq $T0,$H3,$H3 # h0*r3
+ vpaddq $H3,$D3,$D3 # d3 += h0*r3
+ vpshufd \$0x10,`16*7-64`($ctx),$H2 # r4^n
+ vpmuludq $T4,$H4,$H1 # h4*s3
+ vpaddq $H1,$D2,$D2 # d2 += h4*s3
+ vpshufd \$0x10,`16*8-64`($ctx),$H3 # s4^n
+ vpmuludq $T3,$H4,$H0 # h3*s3
+ vpaddq $H0,$D1,$D1 # d1 += h3*s3
+ vpmuludq $T2,$H4,$H4 # h2*s3
+ vpaddq $H4,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $T0,$H2,$H2 # h0*r4
+ vpaddq $H2,$D4,$D4 # h4 = d4 + h0*r4
+ vpmuludq $T4,$H3,$H1 # h4*s4
+ vpaddq $H1,$D3,$D3 # h3 = d3 + h4*s4
+ vpmuludq $T3,$H3,$H0 # h3*s4
+ vpaddq $H0,$D2,$D2 # h2 = d2 + h3*s4
+ vpmuludq $T2,$H3,$H1 # h2*s4
+ vpaddq $H1,$D1,$D1 # h1 = d1 + h2*s4
+ vpmuludq $T1,$H3,$H3 # h1*s4
+ vpaddq $H3,$D0,$D0 # h0 = d0 + h1*s4
+
+ jz .Lshort_tail_avx
+
+ vmovdqu 16*0($inp),$H0 # load input
+ vmovdqu 16*1($inp),$H1
+
+ vpsrldq \$6,$H0,$H2 # splat input
+ vpsrldq \$6,$H1,$H3
+ vpunpckhqdq $H1,$H0,$H4 # 4
+ vpunpcklqdq $H1,$H0,$H0 # 0:1
+ vpunpcklqdq $H3,$H2,$H3 # 2:3
+
+ vpsrlq \$40,$H4,$H4 # 4
+ vpsrlq \$26,$H0,$H1
+ vpand $MASK,$H0,$H0 # 0
+ vpsrlq \$4,$H3,$H2
+ vpand $MASK,$H1,$H1 # 1
+ vpsrlq \$30,$H3,$H3
+ vpand $MASK,$H2,$H2 # 2
+ vpand $MASK,$H3,$H3 # 3
+ vpor 32(%rcx),$H4,$H4 # padbit, yes, always
+
+ vpshufd \$0x32,`16*0-64`($ctx),$T4 # r0^n, 34xx -> x3x4
+ vpaddq 0x00(%r11),$H0,$H0
+ vpaddq 0x10(%r11),$H1,$H1
+ vpaddq 0x20(%r11),$H2,$H2
+ vpaddq 0x30(%r11),$H3,$H3
+ vpaddq 0x40(%r11),$H4,$H4
+
+ ################################################################
+ # multiply (inp[0:1]+hash) by r^4:r^3 and accumulate
+
+ vpmuludq $H0,$T4,$T0 # h0*r0
+ vpaddq $T0,$D0,$D0 # d0 += h0*r0
+ vpmuludq $H1,$T4,$T1 # h1*r0
+ vpaddq $T1,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H2,$T4,$T0 # h2*r0
+ vpaddq $T0,$D2,$D2 # d2 += h2*r0
+ vpshufd \$0x32,`16*1-64`($ctx),$T2 # r1^n
+ vpmuludq $H3,$T4,$T1 # h3*r0
+ vpaddq $T1,$D3,$D3 # d3 += h3*r0
+ vpmuludq $H4,$T4,$T4 # h4*r0
+ vpaddq $T4,$D4,$D4 # d4 += h4*r0
+
+ vpmuludq $H3,$T2,$T0 # h3*r1
+ vpaddq $T0,$D4,$D4 # d4 += h3*r1
+ vpshufd \$0x32,`16*2-64`($ctx),$T3 # s1
+ vpmuludq $H2,$T2,$T1 # h2*r1
+ vpaddq $T1,$D3,$D3 # d3 += h2*r1
+ vpshufd \$0x32,`16*3-64`($ctx),$T4 # r2
+ vpmuludq $H1,$T2,$T0 # h1*r1
+ vpaddq $T0,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H0,$T2,$T2 # h0*r1
+ vpaddq $T2,$D1,$D1 # d1 += h0*r1
+ vpmuludq $H4,$T3,$T3 # h4*s1
+ vpaddq $T3,$D0,$D0 # d0 += h4*s1
+
+ vpshufd \$0x32,`16*4-64`($ctx),$T2 # s2
+ vpmuludq $H2,$T4,$T1 # h2*r2
+ vpaddq $T1,$D4,$D4 # d4 += h2*r2
+ vpmuludq $H1,$T4,$T0 # h1*r2
+ vpaddq $T0,$D3,$D3 # d3 += h1*r2
+ vpshufd \$0x32,`16*5-64`($ctx),$T3 # r3
+ vpmuludq $H0,$T4,$T4 # h0*r2
+ vpaddq $T4,$D2,$D2 # d2 += h0*r2
+ vpmuludq $H4,$T2,$T1 # h4*s2
+ vpaddq $T1,$D1,$D1 # d1 += h4*s2
+ vpshufd \$0x32,`16*6-64`($ctx),$T4 # s3
+ vpmuludq $H3,$T2,$T2 # h3*s2
+ vpaddq $T2,$D0,$D0 # d0 += h3*s2
+
+ vpmuludq $H1,$T3,$T0 # h1*r3
+ vpaddq $T0,$D4,$D4 # d4 += h1*r3
+ vpmuludq $H0,$T3,$T3 # h0*r3
+ vpaddq $T3,$D3,$D3 # d3 += h0*r3
+ vpshufd \$0x32,`16*7-64`($ctx),$T2 # r4
+ vpmuludq $H4,$T4,$T1 # h4*s3
+ vpaddq $T1,$D2,$D2 # d2 += h4*s3
+ vpshufd \$0x32,`16*8-64`($ctx),$T3 # s4
+ vpmuludq $H3,$T4,$T0 # h3*s3
+ vpaddq $T0,$D1,$D1 # d1 += h3*s3
+ vpmuludq $H2,$T4,$T4 # h2*s3
+ vpaddq $T4,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $H0,$T2,$T2 # h0*r4
+ vpaddq $T2,$D4,$D4 # d4 += h0*r4
+ vpmuludq $H4,$T3,$T1 # h4*s4
+ vpaddq $T1,$D3,$D3 # d3 += h4*s4
+ vpmuludq $H3,$T3,$T0 # h3*s4
+ vpaddq $T0,$D2,$D2 # d2 += h3*s4
+ vpmuludq $H2,$T3,$T1 # h2*s4
+ vpaddq $T1,$D1,$D1 # d1 += h2*s4
+ vpmuludq $H1,$T3,$T3 # h1*s4
+ vpaddq $T3,$D0,$D0 # d0 += h1*s4
+
+.Lshort_tail_avx:
+ ################################################################
+ # horizontal addition
+
+ vpsrldq \$8,$D4,$T4
+ vpsrldq \$8,$D3,$T3
+ vpsrldq \$8,$D1,$T1
+ vpsrldq \$8,$D0,$T0
+ vpsrldq \$8,$D2,$T2
+ vpaddq $T3,$D3,$D3
+ vpaddq $T4,$D4,$D4
+ vpaddq $T0,$D0,$D0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$D2,$D2
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$D3,$H3
+ vpand $MASK,$D3,$D3
+ vpaddq $H3,$D4,$D4 # h3 -> h4
+
+ vpsrlq \$26,$D0,$H0
+ vpand $MASK,$D0,$D0
+ vpaddq $H0,$D1,$D1 # h0 -> h1
+
+ vpsrlq \$26,$D4,$H4
+ vpand $MASK,$D4,$D4
+
+ vpsrlq \$26,$D1,$H1
+ vpand $MASK,$D1,$D1
+ vpaddq $H1,$D2,$D2 # h1 -> h2
+
+ vpaddq $H4,$D0,$D0
+ vpsllq \$2,$H4,$H4
+ vpaddq $H4,$D0,$D0 # h4 -> h0
+
+ vpsrlq \$26,$D2,$H2
+ vpand $MASK,$D2,$D2
+ vpaddq $H2,$D3,$D3 # h2 -> h3
+
+ vpsrlq \$26,$D0,$H0
+ vpand $MASK,$D0,$D0
+ vpaddq $H0,$D1,$D1 # h0 -> h1
+
+ vpsrlq \$26,$D3,$H3
+ vpand $MASK,$D3,$D3
+ vpaddq $H3,$D4,$D4 # h3 -> h4
+
+ vmovd $D0,`4*0-48-64`($ctx) # save partially reduced
+ vmovd $D1,`4*1-48-64`($ctx)
+ vmovd $D2,`4*2-48-64`($ctx)
+ vmovd $D3,`4*3-48-64`($ctx)
+ vmovd $D4,`4*4-48-64`($ctx)
+___
+$code.=<<___ if ($win64);
+ vmovdqa 0x50(%r11),%xmm6
+ vmovdqa 0x60(%r11),%xmm7
+ vmovdqa 0x70(%r11),%xmm8
+ vmovdqa 0x80(%r11),%xmm9
+ vmovdqa 0x90(%r11),%xmm10
+ vmovdqa 0xa0(%r11),%xmm11
+ vmovdqa 0xb0(%r11),%xmm12
+ vmovdqa 0xc0(%r11),%xmm13
+ vmovdqa 0xd0(%r11),%xmm14
+ vmovdqa 0xe0(%r11),%xmm15
+ lea 0xf8(%r11),%rsp
+.Ldo_avx_epilogue:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ vzeroupper
+ ret
+.cfi_endproc
+___
+&end_function("poly1305_blocks_avx");
+
+&declare_function("poly1305_emit_avx", 32, 3);
+$code.=<<___;
+ cmpl \$0,20($ctx) # is_base2_26?
+ je .Lemit
+
+ mov 0($ctx),%eax # load hash value base 2^26
+ mov 4($ctx),%ecx
+ mov 8($ctx),%r8d
+ mov 12($ctx),%r11d
+ mov 16($ctx),%r10d
+
+ shl \$26,%rcx # base 2^26 -> base 2^64
+ mov %r8,%r9
+ shl \$52,%r8
+ add %rcx,%rax
+ shr \$12,%r9
+ add %rax,%r8 # h0
+ adc \$0,%r9
+
+ shl \$14,%r11
+ mov %r10,%rax
+ shr \$24,%r10
+ add %r11,%r9
+ shl \$40,%rax
+ add %rax,%r9 # h1
+ adc \$0,%r10 # h2
+
+ mov %r10,%rax # could be partially reduced, so reduce
+ mov %r10,%rcx
+ and \$3,%r10
+ shr \$2,%rax
+ and \$-4,%rcx
+ add %rcx,%rax
+ add %rax,%r8
+ adc \$0,%r9
+ adc \$0,%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ ret
+___
+&end_function("poly1305_emit_avx");
+
+if ($kernel) {
+ $code .= "#endif\n";
+}
+
+if ($avx>1) {
+
+if ($kernel) {
+ $code .= "#ifdef CONFIG_AS_AVX2\n";
+}
+
+my ($H0,$H1,$H2,$H3,$H4, $MASK, $T4,$T0,$T1,$T2,$T3, $D0,$D1,$D2,$D3,$D4) =
+ map("%ymm$_",(0..15));
+my $S4=$MASK;
+
+sub poly1305_blocks_avxN {
+ my ($avx512) = @_;
+ my $suffix = $avx512 ? "_avx512" : "";
+$code.=<<___;
+.cfi_startproc
+ mov 20($ctx),%r8d # is_base2_26
+ cmp \$128,$len
+ jae .Lblocks_avx2$suffix
+ test %r8d,%r8d
+ jz .Lblocks
+
+.Lblocks_avx2$suffix:
+ and \$-16,$len
+ jz .Lno_data_avx2$suffix
+
+ vzeroupper
+
+ test %r8d,%r8d
+ jz .Lbase2_64_avx2$suffix
+
+ test \$63,$len
+ jz .Leven_avx2$suffix
+
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lblocks_avx2_body$suffix:
+
+ mov $len,%r15 # reassign $len
+
+ mov 0($ctx),$d1 # load hash value
+ mov 8($ctx),$d2
+ mov 16($ctx),$h2#d
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ ################################# base 2^26 -> base 2^64
+ mov $d1#d,$h0#d
+ and \$`-1*(1<<31)`,$d1
+ mov $d2,$r1 # borrow $r1
+ mov $d2#d,$h1#d
+ and \$`-1*(1<<31)`,$d2
+
+ shr \$6,$d1
+ shl \$52,$r1
+ add $d1,$h0
+ shr \$12,$h1
+ shr \$18,$d2
+ add $r1,$h0
+ adc $d2,$h1
+
+ mov $h2,$d1
+ shl \$40,$d1
+ shr \$24,$h2
+ add $d1,$h1
+ adc \$0,$h2 # can be partially reduced...
+
+ mov \$-4,$d2 # ... so reduce
+ mov $h2,$d1
+ and $h2,$d2
+ shr \$2,$d1
+ and \$3,$h2
+ add $d2,$d1 # =*5
+ add $d1,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+.Lbase2_26_pre_avx2$suffix:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+ mov $r1,%rax
+
+ test \$63,%r15
+ jnz .Lbase2_26_pre_avx2$suffix
+
+ test $padbit,$padbit # if $padbit is zero,
+ jz .Lstore_base2_64_avx2$suffix # store hash in base 2^64 format
+
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$r0
+ mov $h1,$r1
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$r0
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $r0,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$r1
+ and \$0x3ffffff,$h1 # h[3]
+ or $r1,$h2 # h[4]
+
+ test %r15,%r15
+ jz .Lstore_base2_26_avx2$suffix
+
+ vmovd %rax#d,%x#$H0
+ vmovd %rdx#d,%x#$H1
+ vmovd $h0#d,%x#$H2
+ vmovd $h1#d,%x#$H3
+ vmovd $h2#d,%x#$H4
+ jmp .Lproceed_avx2$suffix
+
+.align 32
+.Lstore_base2_64_avx2$suffix:
+ mov $h0,0($ctx)
+ mov $h1,8($ctx)
+ mov $h2,16($ctx) # note that is_base2_26 is zeroed
+ jmp .Ldone_avx2$suffix
+
+.align 16
+.Lstore_base2_26_avx2$suffix:
+ mov %rax#d,0($ctx) # store hash value base 2^26
+ mov %rdx#d,4($ctx)
+ mov $h0#d,8($ctx)
+ mov $h1#d,12($ctx)
+ mov $h2#d,16($ctx)
+.align 16
+.Ldone_avx2$suffix:
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lno_data_avx2$suffix:
+.Lblocks_avx2_epilogue$suffix:
+ ret
+.cfi_endproc
+
+.align 32
+.Lbase2_64_avx2$suffix:
+.cfi_startproc
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lbase2_64_avx2_body$suffix:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2#d
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ test \$63,$len
+ jz .Linit_avx2$suffix
+
+.Lbase2_64_pre_avx2$suffix:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+ mov $r1,%rax
+
+ test \$63,%r15
+ jnz .Lbase2_64_pre_avx2$suffix
+
+.Linit_avx2$suffix:
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$d1
+ mov $h1,$d2
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$d1
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $d1,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$d2
+ and \$0x3ffffff,$h1 # h[3]
+ or $d2,$h2 # h[4]
+
+ vmovd %rax#d,%x#$H0
+ vmovd %rdx#d,%x#$H1
+ vmovd $h0#d,%x#$H2
+ vmovd $h1#d,%x#$H3
+ vmovd $h2#d,%x#$H4
+ movl \$1,20($ctx) # set is_base2_26
+
+ call __poly1305_init_avx
+
+.Lproceed_avx2$suffix:
+ mov %r15,$len # restore $len
+___
+$code.=<<___ if (!$kernel);
+ mov OPENSSL_ia32cap_P+8(%rip),%r9d
+ mov \$`(1<<31|1<<30|1<<16)`,%r11d
+___
+$code.=<<___;
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lbase2_64_avx2_epilogue$suffix:
+ jmp .Ldo_avx2$suffix
+.cfi_endproc
+
+.align 32
+.Leven_avx2$suffix:
+.cfi_startproc
+___
+$code.=<<___ if (!$kernel);
+ mov OPENSSL_ia32cap_P+8(%rip),%r9d
+___
+$code.=<<___;
+ vmovd 4*0($ctx),%x#$H0 # load hash value base 2^26
+ vmovd 4*1($ctx),%x#$H1
+ vmovd 4*2($ctx),%x#$H2
+ vmovd 4*3($ctx),%x#$H3
+ vmovd 4*4($ctx),%x#$H4
+
+.Ldo_avx2$suffix:
+___
+$code.=<<___ if (!$kernel && $avx>2);
+ cmp \$512,$len
+ jb .Lskip_avx512
+ and %r11d,%r9d
+ test \$`1<<16`,%r9d # check for AVX512F
+ jnz .Lblocks_avx512
+.Lskip_avx512$suffix:
+___
+$code.=<<___ if ($avx > 2 && $avx512 && $kernel);
+ cmp \$512,$len
+ jae .Lblocks_avx512
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ sub \$0x128,%rsp
+___
+$code.=<<___ if ($win64);
+ lea 8(%rsp),%r10
+ sub \$0x1c8,%rsp
+ vmovdqa %xmm6,-0xb0(%r10)
+ vmovdqa %xmm7,-0xa0(%r10)
+ vmovdqa %xmm8,-0x90(%r10)
+ vmovdqa %xmm9,-0x80(%r10)
+ vmovdqa %xmm10,-0x70(%r10)
+ vmovdqa %xmm11,-0x60(%r10)
+ vmovdqa %xmm12,-0x50(%r10)
+ vmovdqa %xmm13,-0x40(%r10)
+ vmovdqa %xmm14,-0x30(%r10)
+ vmovdqa %xmm15,-0x20(%r10)
+.Ldo_avx2_body$suffix:
+___
+$code.=<<___;
+ lea .Lconst(%rip),%rcx
+ lea 48+64($ctx),$ctx # size optimization
+ vmovdqa 96(%rcx),$T0 # .Lpermd_avx2
+
+ # expand and copy pre-calculated table to stack
+ vmovdqu `16*0-64`($ctx),%x#$T2
+ and \$-512,%rsp
+ vmovdqu `16*1-64`($ctx),%x#$T3
+ vmovdqu `16*2-64`($ctx),%x#$T4
+ vmovdqu `16*3-64`($ctx),%x#$D0
+ vmovdqu `16*4-64`($ctx),%x#$D1
+ vmovdqu `16*5-64`($ctx),%x#$D2
+ lea 0x90(%rsp),%rax # size optimization
+ vmovdqu `16*6-64`($ctx),%x#$D3
+ vpermd $T2,$T0,$T2 # 00003412 -> 14243444
+ vmovdqu `16*7-64`($ctx),%x#$D4
+ vpermd $T3,$T0,$T3
+ vmovdqu `16*8-64`($ctx),%x#$MASK
+ vpermd $T4,$T0,$T4
+ vmovdqa $T2,0x00(%rsp)
+ vpermd $D0,$T0,$D0
+ vmovdqa $T3,0x20-0x90(%rax)
+ vpermd $D1,$T0,$D1
+ vmovdqa $T4,0x40-0x90(%rax)
+ vpermd $D2,$T0,$D2
+ vmovdqa $D0,0x60-0x90(%rax)
+ vpermd $D3,$T0,$D3
+ vmovdqa $D1,0x80-0x90(%rax)
+ vpermd $D4,$T0,$D4
+ vmovdqa $D2,0xa0-0x90(%rax)
+ vpermd $MASK,$T0,$MASK
+ vmovdqa $D3,0xc0-0x90(%rax)
+ vmovdqa $D4,0xe0-0x90(%rax)
+ vmovdqa $MASK,0x100-0x90(%rax)
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+
+ ################################################################
+ # load input
+ vmovdqu 16*0($inp),%x#$T0
+ vmovdqu 16*1($inp),%x#$T1
+ vinserti128 \$1,16*2($inp),$T0,$T0
+ vinserti128 \$1,16*3($inp),$T1,$T1
+ lea 16*4($inp),$inp
+
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpunpcklqdq $T3,$T2,$T2 # 2:3
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+
+ vpsrlq \$30,$T2,$T3
+ vpsrlq \$4,$T2,$T2
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$40,$T4,$T4 # 4
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T0,$T0 # 0
+ vpand $MASK,$T1,$T1 # 1
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ vpaddq $H2,$T2,$H2 # accumulate input
+ sub \$64,$len
+ jz .Ltail_avx2$suffix
+ jmp .Loop_avx2$suffix
+
+.align 32
+.Loop_avx2$suffix:
+ ################################################################
+ # ((inp[0]*r^4+inp[4])*r^4+inp[ 8])*r^4
+ # ((inp[1]*r^4+inp[5])*r^4+inp[ 9])*r^3
+ # ((inp[2]*r^4+inp[6])*r^4+inp[10])*r^2
+ # ((inp[3]*r^4+inp[7])*r^4+inp[11])*r^1
+ # \________/\__________/
+ ################################################################
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+ vmovdqa `32*0`(%rsp),$T0 # r0^4
+ vpaddq $H1,$T1,$H1
+ vmovdqa `32*1`(%rsp),$T1 # r1^4
+ vpaddq $H3,$T3,$H3
+ vmovdqa `32*3`(%rsp),$T2 # r2^4
+ vpaddq $H4,$T4,$H4
+ vmovdqa `32*6-0x90`(%rax),$T3 # s3^4
+ vmovdqa `32*8-0x90`(%rax),$S4 # s4^4
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # however, as h2 is "chronologically" first one available pull
+ # corresponding operations up, so it's
+ #
+ # d4 = h2*r2 + h4*r0 + h3*r1 + h1*r3 + h0*r4
+ # d3 = h2*r1 + h3*r0 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h2*5*r4 + h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3
+ # d0 = h2*5*r3 + h0*r0 + h4*5*r1 + h3*5*r2 + h1*5*r4
+
+ vpmuludq $H2,$T0,$D2 # d2 = h2*r0
+ vpmuludq $H2,$T1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$T2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$T3,$D0 # d0 = h2*s3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+
+ vpmuludq $H0,$T1,$T4 # h0*r1
+ vpmuludq $H1,$T1,$H2 # h1*r1, borrow $H2 as temp
+ vpaddq $T4,$D1,$D1 # d1 += h0*r1
+ vpaddq $H2,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H3,$T1,$T4 # h3*r1
+ vpmuludq `32*2`(%rsp),$H4,$H2 # h4*s1
+ vpaddq $T4,$D4,$D4 # d4 += h3*r1
+ vpaddq $H2,$D0,$D0 # d0 += h4*s1
+ vmovdqa `32*4-0x90`(%rax),$T1 # s2
+
+ vpmuludq $H0,$T0,$T4 # h0*r0
+ vpmuludq $H1,$T0,$H2 # h1*r0
+ vpaddq $T4,$D0,$D0 # d0 += h0*r0
+ vpaddq $H2,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H3,$T0,$T4 # h3*r0
+ vpmuludq $H4,$T0,$H2 # h4*r0
+ vmovdqu 16*0($inp),%x#$T0 # load input
+ vpaddq $T4,$D3,$D3 # d3 += h3*r0
+ vpaddq $H2,$D4,$D4 # d4 += h4*r0
+ vinserti128 \$1,16*2($inp),$T0,$T0
+
+ vpmuludq $H3,$T1,$T4 # h3*s2
+ vpmuludq $H4,$T1,$H2 # h4*s2
+ vmovdqu 16*1($inp),%x#$T1
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+ vpaddq $H2,$D1,$D1 # d1 += h4*s2
+ vmovdqa `32*5-0x90`(%rax),$H2 # r3
+ vpmuludq $H1,$T2,$T4 # h1*r2
+ vpmuludq $H0,$T2,$T2 # h0*r2
+ vpaddq $T4,$D3,$D3 # d3 += h1*r2
+ vpaddq $T2,$D2,$D2 # d2 += h0*r2
+ vinserti128 \$1,16*3($inp),$T1,$T1
+ lea 16*4($inp),$inp
+
+ vpmuludq $H1,$H2,$T4 # h1*r3
+ vpmuludq $H0,$H2,$H2 # h0*r3
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpaddq $T4,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $H3,$T3,$T4 # h3*s3
+ vpmuludq $H4,$T3,$H2 # h4*s3
+ vpsrldq \$6,$T1,$T3
+ vpaddq $T4,$D1,$D1 # d1 += h3*s3
+ vpaddq $H2,$D2,$D2 # d2 += h4*s3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+
+ vpmuludq $H3,$S4,$H3 # h3*s4
+ vpmuludq $H4,$S4,$H4 # h4*s4
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*r4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*r4
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+ vpmuludq `32*7-0x90`(%rax),$H0,$H4 # h0*r4
+ vpmuludq $H1,$S4,$H0 # h1*s4
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ ################################################################
+ # lazy reduction (interleaved with tail of input splat)
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$4,$T3,$T2
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpand $MASK,$T2,$T2 # 2
+ vpsrlq \$26,$T0,$T1
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpaddq $T2,$H2,$H2 # modulo-scheduled
+ vpsrlq \$30,$T3,$T3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$40,$T4,$T4 # 4
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpand $MASK,$T0,$T0 # 0
+ vpand $MASK,$T1,$T1 # 1
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ sub \$64,$len
+ jnz .Loop_avx2$suffix
+
+ .byte 0x66,0x90
+.Ltail_avx2$suffix:
+ ################################################################
+ # while above multiplications were by r^4 in all lanes, in last
+ # iteration we multiply least significant lane by r^4 and most
+ # significant one by r, so copy of above except that references
+ # to the precomputed table are displaced by 4...
+
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+ vmovdqu `32*0+4`(%rsp),$T0 # r0^4
+ vpaddq $H1,$T1,$H1
+ vmovdqu `32*1+4`(%rsp),$T1 # r1^4
+ vpaddq $H3,$T3,$H3
+ vmovdqu `32*3+4`(%rsp),$T2 # r2^4
+ vpaddq $H4,$T4,$H4
+ vmovdqu `32*6+4-0x90`(%rax),$T3 # s3^4
+ vmovdqu `32*8+4-0x90`(%rax),$S4 # s4^4
+
+ vpmuludq $H2,$T0,$D2 # d2 = h2*r0
+ vpmuludq $H2,$T1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$T2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$T3,$D0 # d0 = h2*s3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+
+ vpmuludq $H0,$T1,$T4 # h0*r1
+ vpmuludq $H1,$T1,$H2 # h1*r1
+ vpaddq $T4,$D1,$D1 # d1 += h0*r1
+ vpaddq $H2,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H3,$T1,$T4 # h3*r1
+ vpmuludq `32*2+4`(%rsp),$H4,$H2 # h4*s1
+ vpaddq $T4,$D4,$D4 # d4 += h3*r1
+ vpaddq $H2,$D0,$D0 # d0 += h4*s1
+
+ vpmuludq $H0,$T0,$T4 # h0*r0
+ vpmuludq $H1,$T0,$H2 # h1*r0
+ vpaddq $T4,$D0,$D0 # d0 += h0*r0
+ vmovdqu `32*4+4-0x90`(%rax),$T1 # s2
+ vpaddq $H2,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H3,$T0,$T4 # h3*r0
+ vpmuludq $H4,$T0,$H2 # h4*r0
+ vpaddq $T4,$D3,$D3 # d3 += h3*r0
+ vpaddq $H2,$D4,$D4 # d4 += h4*r0
+
+ vpmuludq $H3,$T1,$T4 # h3*s2
+ vpmuludq $H4,$T1,$H2 # h4*s2
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+ vpaddq $H2,$D1,$D1 # d1 += h4*s2
+ vmovdqu `32*5+4-0x90`(%rax),$H2 # r3
+ vpmuludq $H1,$T2,$T4 # h1*r2
+ vpmuludq $H0,$T2,$T2 # h0*r2
+ vpaddq $T4,$D3,$D3 # d3 += h1*r2
+ vpaddq $T2,$D2,$D2 # d2 += h0*r2
+
+ vpmuludq $H1,$H2,$T4 # h1*r3
+ vpmuludq $H0,$H2,$H2 # h0*r3
+ vpaddq $T4,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $H3,$T3,$T4 # h3*s3
+ vpmuludq $H4,$T3,$H2 # h4*s3
+ vpaddq $T4,$D1,$D1 # d1 += h3*s3
+ vpaddq $H2,$D2,$D2 # d2 += h4*s3
+
+ vpmuludq $H3,$S4,$H3 # h3*s4
+ vpmuludq $H4,$S4,$H4 # h4*s4
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*r4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*r4
+ vpmuludq `32*7+4-0x90`(%rax),$H0,$H4 # h0*r4
+ vpmuludq $H1,$S4,$H0 # h1*s4
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ ################################################################
+ # horizontal addition
+
+ vpsrldq \$8,$D1,$T1
+ vpsrldq \$8,$H2,$T2
+ vpsrldq \$8,$H3,$T3
+ vpsrldq \$8,$H4,$T4
+ vpsrldq \$8,$H0,$T0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$H2,$H2
+ vpaddq $T3,$H3,$H3
+ vpaddq $T4,$H4,$H4
+ vpaddq $T0,$H0,$H0
+
+ vpermq \$0x2,$H3,$T3
+ vpermq \$0x2,$H4,$T4
+ vpermq \$0x2,$H0,$T0
+ vpermq \$0x2,$D1,$T1
+ vpermq \$0x2,$H2,$T2
+ vpaddq $T3,$H3,$H3
+ vpaddq $T4,$H4,$H4
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$H2,$H2
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vmovd %x#$H0,`4*0-48-64`($ctx)# save partially reduced
+ vmovd %x#$H1,`4*1-48-64`($ctx)
+ vmovd %x#$H2,`4*2-48-64`($ctx)
+ vmovd %x#$H3,`4*3-48-64`($ctx)
+ vmovd %x#$H4,`4*4-48-64`($ctx)
+___
+$code.=<<___ if ($win64);
+ vmovdqa -0xb0(%r10),%xmm6
+ vmovdqa -0xa0(%r10),%xmm7
+ vmovdqa -0x90(%r10),%xmm8
+ vmovdqa -0x80(%r10),%xmm9
+ vmovdqa -0x70(%r10),%xmm10
+ vmovdqa -0x60(%r10),%xmm11
+ vmovdqa -0x50(%r10),%xmm12
+ vmovdqa -0x40(%r10),%xmm13
+ vmovdqa -0x30(%r10),%xmm14
+ vmovdqa -0x20(%r10),%xmm15
+ lea -8(%r10),%rsp
+.Ldo_avx2_epilogue$suffix:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ vzeroupper
+ ret
+.cfi_endproc
+___
+if($avx > 2 && $avx512) {
+my ($R0,$R1,$R2,$R3,$R4, $S1,$S2,$S3,$S4) = map("%zmm$_",(16..24));
+my ($M0,$M1,$M2,$M3,$M4) = map("%zmm$_",(25..29));
+my $PADBIT="%zmm30";
+
+map(s/%y/%z/,($T4,$T0,$T1,$T2,$T3)); # switch to %zmm domain
+map(s/%y/%z/,($D0,$D1,$D2,$D3,$D4));
+map(s/%y/%z/,($H0,$H1,$H2,$H3,$H4));
+map(s/%y/%z/,($MASK));
+
+$code.=<<___;
+.cfi_startproc
+.Lblocks_avx512:
+ mov \$15,%eax
+ kmovw %eax,%k2
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ sub \$0x128,%rsp
+___
+$code.=<<___ if ($win64);
+ lea 8(%rsp),%r10
+ sub \$0x1c8,%rsp
+ vmovdqa %xmm6,-0xb0(%r10)
+ vmovdqa %xmm7,-0xa0(%r10)
+ vmovdqa %xmm8,-0x90(%r10)
+ vmovdqa %xmm9,-0x80(%r10)
+ vmovdqa %xmm10,-0x70(%r10)
+ vmovdqa %xmm11,-0x60(%r10)
+ vmovdqa %xmm12,-0x50(%r10)
+ vmovdqa %xmm13,-0x40(%r10)
+ vmovdqa %xmm14,-0x30(%r10)
+ vmovdqa %xmm15,-0x20(%r10)
+.Ldo_avx512_body:
+___
+$code.=<<___;
+ lea .Lconst(%rip),%rcx
+ lea 48+64($ctx),$ctx # size optimization
+ vmovdqa 96(%rcx),%y#$T2 # .Lpermd_avx2
+
+ # expand pre-calculated table
+ vmovdqu `16*0-64`($ctx),%x#$D0 # will become expanded ${R0}
+ and \$-512,%rsp
+ vmovdqu `16*1-64`($ctx),%x#$D1 # will become ... ${R1}
+ mov \$0x20,%rax
+ vmovdqu `16*2-64`($ctx),%x#$T0 # ... ${S1}
+ vmovdqu `16*3-64`($ctx),%x#$D2 # ... ${R2}
+ vmovdqu `16*4-64`($ctx),%x#$T1 # ... ${S2}
+ vmovdqu `16*5-64`($ctx),%x#$D3 # ... ${R3}
+ vmovdqu `16*6-64`($ctx),%x#$T3 # ... ${S3}
+ vmovdqu `16*7-64`($ctx),%x#$D4 # ... ${R4}
+ vmovdqu `16*8-64`($ctx),%x#$T4 # ... ${S4}
+ vpermd $D0,$T2,$R0 # 00003412 -> 14243444
+ vpbroadcastq 64(%rcx),$MASK # .Lmask26
+ vpermd $D1,$T2,$R1
+ vpermd $T0,$T2,$S1
+ vpermd $D2,$T2,$R2
+ vmovdqa64 $R0,0x00(%rsp){%k2} # save in case $len%128 != 0
+ vpsrlq \$32,$R0,$T0 # 14243444 -> 01020304
+ vpermd $T1,$T2,$S2
+ vmovdqu64 $R1,0x00(%rsp,%rax){%k2}
+ vpsrlq \$32,$R1,$T1
+ vpermd $D3,$T2,$R3
+ vmovdqa64 $S1,0x40(%rsp){%k2}
+ vpermd $T3,$T2,$S3
+ vpermd $D4,$T2,$R4
+ vmovdqu64 $R2,0x40(%rsp,%rax){%k2}
+ vpermd $T4,$T2,$S4
+ vmovdqa64 $S2,0x80(%rsp){%k2}
+ vmovdqu64 $R3,0x80(%rsp,%rax){%k2}
+ vmovdqa64 $S3,0xc0(%rsp){%k2}
+ vmovdqu64 $R4,0xc0(%rsp,%rax){%k2}
+ vmovdqa64 $S4,0x100(%rsp){%k2}
+
+ ################################################################
+ # calculate 5th through 8th powers of the key
+ #
+ # d0 = r0'*r0 + r1'*5*r4 + r2'*5*r3 + r3'*5*r2 + r4'*5*r1
+ # d1 = r0'*r1 + r1'*r0 + r2'*5*r4 + r3'*5*r3 + r4'*5*r2
+ # d2 = r0'*r2 + r1'*r1 + r2'*r0 + r3'*5*r4 + r4'*5*r3
+ # d3 = r0'*r3 + r1'*r2 + r2'*r1 + r3'*r0 + r4'*5*r4
+ # d4 = r0'*r4 + r1'*r3 + r2'*r2 + r3'*r1 + r4'*r0
+
+ vpmuludq $T0,$R0,$D0 # d0 = r0'*r0
+ vpmuludq $T0,$R1,$D1 # d1 = r0'*r1
+ vpmuludq $T0,$R2,$D2 # d2 = r0'*r2
+ vpmuludq $T0,$R3,$D3 # d3 = r0'*r3
+ vpmuludq $T0,$R4,$D4 # d4 = r0'*r4
+ vpsrlq \$32,$R2,$T2
+
+ vpmuludq $T1,$S4,$M0
+ vpmuludq $T1,$R0,$M1
+ vpmuludq $T1,$R1,$M2
+ vpmuludq $T1,$R2,$M3
+ vpmuludq $T1,$R3,$M4
+ vpsrlq \$32,$R3,$T3
+ vpaddq $M0,$D0,$D0 # d0 += r1'*5*r4
+ vpaddq $M1,$D1,$D1 # d1 += r1'*r0
+ vpaddq $M2,$D2,$D2 # d2 += r1'*r1
+ vpaddq $M3,$D3,$D3 # d3 += r1'*r2
+ vpaddq $M4,$D4,$D4 # d4 += r1'*r3
+
+ vpmuludq $T2,$S3,$M0
+ vpmuludq $T2,$S4,$M1
+ vpmuludq $T2,$R1,$M3
+ vpmuludq $T2,$R2,$M4
+ vpmuludq $T2,$R0,$M2
+ vpsrlq \$32,$R4,$T4
+ vpaddq $M0,$D0,$D0 # d0 += r2'*5*r3
+ vpaddq $M1,$D1,$D1 # d1 += r2'*5*r4
+ vpaddq $M3,$D3,$D3 # d3 += r2'*r1
+ vpaddq $M4,$D4,$D4 # d4 += r2'*r2
+ vpaddq $M2,$D2,$D2 # d2 += r2'*r0
+
+ vpmuludq $T3,$S2,$M0
+ vpmuludq $T3,$R0,$M3
+ vpmuludq $T3,$R1,$M4
+ vpmuludq $T3,$S3,$M1
+ vpmuludq $T3,$S4,$M2
+ vpaddq $M0,$D0,$D0 # d0 += r3'*5*r2
+ vpaddq $M3,$D3,$D3 # d3 += r3'*r0
+ vpaddq $M4,$D4,$D4 # d4 += r3'*r1
+ vpaddq $M1,$D1,$D1 # d1 += r3'*5*r3
+ vpaddq $M2,$D2,$D2 # d2 += r3'*5*r4
+
+ vpmuludq $T4,$S4,$M3
+ vpmuludq $T4,$R0,$M4
+ vpmuludq $T4,$S1,$M0
+ vpmuludq $T4,$S2,$M1
+ vpmuludq $T4,$S3,$M2
+ vpaddq $M3,$D3,$D3 # d3 += r2'*5*r4
+ vpaddq $M4,$D4,$D4 # d4 += r2'*r0
+ vpaddq $M0,$D0,$D0 # d0 += r2'*5*r1
+ vpaddq $M1,$D1,$D1 # d1 += r2'*5*r2
+ vpaddq $M2,$D2,$D2 # d2 += r2'*5*r3
+
+ ################################################################
+ # load input
+ vmovdqu64 16*0($inp),%z#$T3
+ vmovdqu64 16*4($inp),%z#$T4
+ lea 16*8($inp),$inp
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$D3,$M3
+ vpandq $MASK,$D3,$D3
+ vpaddq $M3,$D4,$D4 # d3 -> d4
+
+ vpsrlq \$26,$D0,$M0
+ vpandq $MASK,$D0,$D0
+ vpaddq $M0,$D1,$D1 # d0 -> d1
+
+ vpsrlq \$26,$D4,$M4
+ vpandq $MASK,$D4,$D4
+
+ vpsrlq \$26,$D1,$M1
+ vpandq $MASK,$D1,$D1
+ vpaddq $M1,$D2,$D2 # d1 -> d2
+
+ vpaddq $M4,$D0,$D0
+ vpsllq \$2,$M4,$M4
+ vpaddq $M4,$D0,$D0 # d4 -> d0
+
+ vpsrlq \$26,$D2,$M2
+ vpandq $MASK,$D2,$D2
+ vpaddq $M2,$D3,$D3 # d2 -> d3
+
+ vpsrlq \$26,$D0,$M0
+ vpandq $MASK,$D0,$D0
+ vpaddq $M0,$D1,$D1 # d0 -> d1
+
+ vpsrlq \$26,$D3,$M3
+ vpandq $MASK,$D3,$D3
+ vpaddq $M3,$D4,$D4 # d3 -> d4
+
+ ################################################################
+ # at this point we have 14243444 in $R0-$S4 and 05060708 in
+ # $D0-$D4, ...
+
+ vpunpcklqdq $T4,$T3,$T0 # transpose input
+ vpunpckhqdq $T4,$T3,$T4
+
+ # ... since input 64-bit lanes are ordered as 73625140, we could
+ # "vperm" it to 76543210 (here and in each loop iteration), *or*
+ # we could just flow along, hence the goal for $R0-$S4 is
+ # 1858286838784888 ...
+
+ vmovdqa32 128(%rcx),$M0 # .Lpermd_avx512:
+ mov \$0x7777,%eax
+ kmovw %eax,%k1
+
+ vpermd $R0,$M0,$R0 # 14243444 -> 1---2---3---4---
+ vpermd $R1,$M0,$R1
+ vpermd $R2,$M0,$R2
+ vpermd $R3,$M0,$R3
+ vpermd $R4,$M0,$R4
+
+ vpermd $D0,$M0,${R0}{%k1} # 05060708 -> 1858286838784888
+ vpermd $D1,$M0,${R1}{%k1}
+ vpermd $D2,$M0,${R2}{%k1}
+ vpermd $D3,$M0,${R3}{%k1}
+ vpermd $D4,$M0,${R4}{%k1}
+
+ vpslld \$2,$R1,$S1 # *5
+ vpslld \$2,$R2,$S2
+ vpslld \$2,$R3,$S3
+ vpslld \$2,$R4,$S4
+ vpaddd $R1,$S1,$S1
+ vpaddd $R2,$S2,$S2
+ vpaddd $R3,$S3,$S3
+ vpaddd $R4,$S4,$S4
+
+ vpbroadcastq 32(%rcx),$PADBIT # .L129
+
+ vpsrlq \$52,$T0,$T2 # splat input
+ vpsllq \$12,$T4,$T3
+ vporq $T3,$T2,$T2
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$14,$T4,$T3
+ vpsrlq \$40,$T4,$T4 # 4
+ vpandq $MASK,$T2,$T2 # 2
+ vpandq $MASK,$T0,$T0 # 0
+ #vpandq $MASK,$T1,$T1 # 1
+ #vpandq $MASK,$T3,$T3 # 3
+ #vporq $PADBIT,$T4,$T4 # padbit, yes, always
+
+ vpaddq $H2,$T2,$H2 # accumulate input
+ sub \$192,$len
+ jbe .Ltail_avx512
+ jmp .Loop_avx512
+
+.align 32
+.Loop_avx512:
+ ################################################################
+ # ((inp[0]*r^8+inp[ 8])*r^8+inp[16])*r^8
+ # ((inp[1]*r^8+inp[ 9])*r^8+inp[17])*r^7
+ # ((inp[2]*r^8+inp[10])*r^8+inp[18])*r^6
+ # ((inp[3]*r^8+inp[11])*r^8+inp[19])*r^5
+ # ((inp[4]*r^8+inp[12])*r^8+inp[20])*r^4
+ # ((inp[5]*r^8+inp[13])*r^8+inp[21])*r^3
+ # ((inp[6]*r^8+inp[14])*r^8+inp[22])*r^2
+ # ((inp[7]*r^8+inp[15])*r^8+inp[23])*r^1
+ # \________/\___________/
+ ################################################################
+ #vpaddq $H2,$T2,$H2 # accumulate input
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # however, as h2 is "chronologically" first one available pull
+ # corresponding operations up, so it's
+ #
+ # d3 = h2*r1 + h0*r3 + h1*r2 + h3*r0 + h4*5*r4
+ # d4 = h2*r2 + h0*r4 + h1*r3 + h3*r1 + h4*r0
+ # d0 = h2*5*r3 + h0*r0 + h1*5*r4 + h3*5*r2 + h4*5*r1
+ # d1 = h2*5*r4 + h0*r1 + h1*r0 + h3*5*r3 + h4*5*r2
+ # d2 = h2*r0 + h0*r2 + h1*r1 + h3*5*r4 + h4*5*r3
+
+ vpmuludq $H2,$R1,$D3 # d3 = h2*r1
+ vpaddq $H0,$T0,$H0
+ vpmuludq $H2,$R2,$D4 # d4 = h2*r2
+ vpandq $MASK,$T1,$T1 # 1
+ vpmuludq $H2,$S3,$D0 # d0 = h2*s3
+ vpandq $MASK,$T3,$T3 # 3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+ vporq $PADBIT,$T4,$T4 # padbit, yes, always
+ vpmuludq $H2,$R0,$D2 # d2 = h2*r0
+ vpaddq $H1,$T1,$H1 # accumulate input
+ vpaddq $H3,$T3,$H3
+ vpaddq $H4,$T4,$H4
+
+ vmovdqu64 16*0($inp),$T3 # load input
+ vmovdqu64 16*4($inp),$T4
+ lea 16*8($inp),$inp
+ vpmuludq $H0,$R3,$M3
+ vpmuludq $H0,$R4,$M4
+ vpmuludq $H0,$R0,$M0
+ vpmuludq $H0,$R1,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h0*r3
+ vpaddq $M4,$D4,$D4 # d4 += h0*r4
+ vpaddq $M0,$D0,$D0 # d0 += h0*r0
+ vpaddq $M1,$D1,$D1 # d1 += h0*r1
+
+ vpmuludq $H1,$R2,$M3
+ vpmuludq $H1,$R3,$M4
+ vpmuludq $H1,$S4,$M0
+ vpmuludq $H0,$R2,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h1*r2
+ vpaddq $M4,$D4,$D4 # d4 += h1*r3
+ vpaddq $M0,$D0,$D0 # d0 += h1*s4
+ vpaddq $M2,$D2,$D2 # d2 += h0*r2
+
+ vpunpcklqdq $T4,$T3,$T0 # transpose input
+ vpunpckhqdq $T4,$T3,$T4
+
+ vpmuludq $H3,$R0,$M3
+ vpmuludq $H3,$R1,$M4
+ vpmuludq $H1,$R0,$M1
+ vpmuludq $H1,$R1,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h3*r0
+ vpaddq $M4,$D4,$D4 # d4 += h3*r1
+ vpaddq $M1,$D1,$D1 # d1 += h1*r0
+ vpaddq $M2,$D2,$D2 # d2 += h1*r1
+
+ vpmuludq $H4,$S4,$M3
+ vpmuludq $H4,$R0,$M4
+ vpmuludq $H3,$S2,$M0
+ vpmuludq $H3,$S3,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h4*s4
+ vpmuludq $H3,$S4,$M2
+ vpaddq $M4,$D4,$D4 # d4 += h4*r0
+ vpaddq $M0,$D0,$D0 # d0 += h3*s2
+ vpaddq $M1,$D1,$D1 # d1 += h3*s3
+ vpaddq $M2,$D2,$D2 # d2 += h3*s4
+
+ vpmuludq $H4,$S1,$M0
+ vpmuludq $H4,$S2,$M1
+ vpmuludq $H4,$S3,$M2
+ vpaddq $M0,$D0,$H0 # h0 = d0 + h4*s1
+ vpaddq $M1,$D1,$H1 # h1 = d2 + h4*s2
+ vpaddq $M2,$D2,$H2 # h2 = d3 + h4*s3
+
+ ################################################################
+ # lazy reduction (interleaved with input splat)
+
+ vpsrlq \$52,$T0,$T2 # splat input
+ vpsllq \$12,$T4,$T3
+
+ vpsrlq \$26,$D3,$H3
+ vpandq $MASK,$D3,$D3
+ vpaddq $H3,$D4,$H4 # h3 -> h4
+
+ vporq $T3,$T2,$T2
+
+ vpsrlq \$26,$H0,$D0
+ vpandq $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpandq $MASK,$T2,$T2 # 2
+
+ vpsrlq \$26,$H4,$D4
+ vpandq $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpandq $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpaddq $T2,$H2,$H2 # modulo-scheduled
+ vpsrlq \$26,$T0,$T1
+
+ vpsrlq \$26,$H2,$D2
+ vpandq $MASK,$H2,$H2
+ vpaddq $D2,$D3,$H3 # h2 -> h3
+
+ vpsrlq \$14,$T4,$T3
+
+ vpsrlq \$26,$H0,$D0
+ vpandq $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$40,$T4,$T4 # 4
+
+ vpsrlq \$26,$H3,$D3
+ vpandq $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpandq $MASK,$T0,$T0 # 0
+ #vpandq $MASK,$T1,$T1 # 1
+ #vpandq $MASK,$T3,$T3 # 3
+ #vporq $PADBIT,$T4,$T4 # padbit, yes, always
+
+ sub \$128,$len
+ ja .Loop_avx512
+
+.Ltail_avx512:
+ ################################################################
+ # while above multiplications were by r^8 in all lanes, in last
+ # iteration we multiply least significant lane by r^8 and most
+ # significant one by r, that's why table gets shifted...
+
+ vpsrlq \$32,$R0,$R0 # 0105020603070408
+ vpsrlq \$32,$R1,$R1
+ vpsrlq \$32,$R2,$R2
+ vpsrlq \$32,$S3,$S3
+ vpsrlq \$32,$S4,$S4
+ vpsrlq \$32,$R3,$R3
+ vpsrlq \$32,$R4,$R4
+ vpsrlq \$32,$S1,$S1
+ vpsrlq \$32,$S2,$S2
+
+ ################################################################
+ # load either next or last 64 byte of input
+ lea ($inp,$len),$inp
+
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+
+ vpmuludq $H2,$R1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$R2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$S3,$D0 # d0 = h2*s3
+ vpandq $MASK,$T1,$T1 # 1
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+ vpandq $MASK,$T3,$T3 # 3
+ vpmuludq $H2,$R0,$D2 # d2 = h2*r0
+ vporq $PADBIT,$T4,$T4 # padbit, yes, always
+ vpaddq $H1,$T1,$H1 # accumulate input
+ vpaddq $H3,$T3,$H3
+ vpaddq $H4,$T4,$H4
+
+ vmovdqu 16*0($inp),%x#$T0
+ vpmuludq $H0,$R3,$M3
+ vpmuludq $H0,$R4,$M4
+ vpmuludq $H0,$R0,$M0
+ vpmuludq $H0,$R1,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h0*r3
+ vpaddq $M4,$D4,$D4 # d4 += h0*r4
+ vpaddq $M0,$D0,$D0 # d0 += h0*r0
+ vpaddq $M1,$D1,$D1 # d1 += h0*r1
+
+ vmovdqu 16*1($inp),%x#$T1
+ vpmuludq $H1,$R2,$M3
+ vpmuludq $H1,$R3,$M4
+ vpmuludq $H1,$S4,$M0
+ vpmuludq $H0,$R2,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h1*r2
+ vpaddq $M4,$D4,$D4 # d4 += h1*r3
+ vpaddq $M0,$D0,$D0 # d0 += h1*s4
+ vpaddq $M2,$D2,$D2 # d2 += h0*r2
+
+ vinserti128 \$1,16*2($inp),%y#$T0,%y#$T0
+ vpmuludq $H3,$R0,$M3
+ vpmuludq $H3,$R1,$M4
+ vpmuludq $H1,$R0,$M1
+ vpmuludq $H1,$R1,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h3*r0
+ vpaddq $M4,$D4,$D4 # d4 += h3*r1
+ vpaddq $M1,$D1,$D1 # d1 += h1*r0
+ vpaddq $M2,$D2,$D2 # d2 += h1*r1
+
+ vinserti128 \$1,16*3($inp),%y#$T1,%y#$T1
+ vpmuludq $H4,$S4,$M3
+ vpmuludq $H4,$R0,$M4
+ vpmuludq $H3,$S2,$M0
+ vpmuludq $H3,$S3,$M1
+ vpmuludq $H3,$S4,$M2
+ vpaddq $M3,$D3,$H3 # h3 = d3 + h4*s4
+ vpaddq $M4,$D4,$D4 # d4 += h4*r0
+ vpaddq $M0,$D0,$D0 # d0 += h3*s2
+ vpaddq $M1,$D1,$D1 # d1 += h3*s3
+ vpaddq $M2,$D2,$D2 # d2 += h3*s4
+
+ vpmuludq $H4,$S1,$M0
+ vpmuludq $H4,$S2,$M1
+ vpmuludq $H4,$S3,$M2
+ vpaddq $M0,$D0,$H0 # h0 = d0 + h4*s1
+ vpaddq $M1,$D1,$H1 # h1 = d2 + h4*s2
+ vpaddq $M2,$D2,$H2 # h2 = d3 + h4*s3
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ vpermq \$0xb1,$H3,$D3
+ vpermq \$0xb1,$D4,$H4
+ vpermq \$0xb1,$H0,$D0
+ vpermq \$0xb1,$H1,$D1
+ vpermq \$0xb1,$H2,$D2
+ vpaddq $D3,$H3,$H3
+ vpaddq $D4,$H4,$H4
+ vpaddq $D0,$H0,$H0
+ vpaddq $D1,$H1,$H1
+ vpaddq $D2,$H2,$H2
+
+ kmovw %eax,%k3
+ vpermq \$0x2,$H3,$D3
+ vpermq \$0x2,$H4,$D4
+ vpermq \$0x2,$H0,$D0
+ vpermq \$0x2,$H1,$D1
+ vpermq \$0x2,$H2,$D2
+ vpaddq $D3,$H3,$H3
+ vpaddq $D4,$H4,$H4
+ vpaddq $D0,$H0,$H0
+ vpaddq $D1,$H1,$H1
+ vpaddq $D2,$H2,$H2
+
+ vextracti64x4 \$0x1,$H3,%y#$D3
+ vextracti64x4 \$0x1,$H4,%y#$D4
+ vextracti64x4 \$0x1,$H0,%y#$D0
+ vextracti64x4 \$0x1,$H1,%y#$D1
+ vextracti64x4 \$0x1,$H2,%y#$D2
+ vpaddq $D3,$H3,${H3}{%k3}{z} # keep single qword in case
+ vpaddq $D4,$H4,${H4}{%k3}{z} # it's passed to .Ltail_avx2
+ vpaddq $D0,$H0,${H0}{%k3}{z}
+ vpaddq $D1,$H1,${H1}{%k3}{z}
+ vpaddq $D2,$H2,${H2}{%k3}{z}
+___
+map(s/%z/%y/,($T0,$T1,$T2,$T3,$T4, $PADBIT));
+map(s/%z/%y/,($H0,$H1,$H2,$H3,$H4, $D0,$D1,$D2,$D3,$D4, $MASK));
+$code.=<<___;
+ ################################################################
+ # lazy reduction (interleaved with input splat)
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpunpcklqdq $T3,$T2,$T2 # 2:3
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpsrlq \$30,$T2,$T3
+ vpsrlq \$4,$T2,$T2
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$40,$T4,$T4 # 4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T0,$T0 # 0
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $H2,$T2,$H2 # accumulate input for .Ltail_avx2
+ vpand $MASK,$T1,$T1 # 1
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ lea 0x90(%rsp),%rax # size optimization for .Ltail_avx2
+ add \$64,$len
+ jnz .Ltail_avx2$suffix
+
+ vpsubq $T2,$H2,$H2 # undo input accumulation
+ vmovd %x#$H0,`4*0-48-64`($ctx)# save partially reduced
+ vmovd %x#$H1,`4*1-48-64`($ctx)
+ vmovd %x#$H2,`4*2-48-64`($ctx)
+ vmovd %x#$H3,`4*3-48-64`($ctx)
+ vmovd %x#$H4,`4*4-48-64`($ctx)
+ vzeroall
+___
+$code.=<<___ if ($win64);
+ movdqa -0xb0(%r10),%xmm6
+ movdqa -0xa0(%r10),%xmm7
+ movdqa -0x90(%r10),%xmm8
+ movdqa -0x80(%r10),%xmm9
+ movdqa -0x70(%r10),%xmm10
+ movdqa -0x60(%r10),%xmm11
+ movdqa -0x50(%r10),%xmm12
+ movdqa -0x40(%r10),%xmm13
+ movdqa -0x30(%r10),%xmm14
+ movdqa -0x20(%r10),%xmm15
+ lea -8(%r10),%rsp
+.Ldo_avx512_epilogue:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ ret
+.cfi_endproc
+___
+
+}
+
+}
+
+&declare_function("poly1305_blocks_avx2", 32, 4);
+poly1305_blocks_avxN(0);
+&end_function("poly1305_blocks_avx2");
+
+if($kernel) {
+ $code .= "#endif\n";
+}
+
+#######################################################################
+if ($avx>2) {
+# On entry we have input length divisible by 64. But since inner loop
+# processes 128 bytes per iteration, cases when length is not divisible
+# by 128 are handled by passing tail 64 bytes to .Ltail_avx2. For this
+# reason stack layout is kept identical to poly1305_blocks_avx2. If not
+# for this tail, we wouldn't have to even allocate stack frame...
+
+if($kernel) {
+ $code .= "#ifdef CONFIG_AS_AVX512\n";
+}
+
+&declare_function("poly1305_blocks_avx512", 32, 4);
+poly1305_blocks_avxN(1);
+&end_function("poly1305_blocks_avx512");
+
+if ($kernel) {
+ $code .= "#endif\n";
+}
+
+if (!$kernel && $avx>3) {
+########################################################################
+# VPMADD52 version using 2^44 radix.
+#
+# One can argue that base 2^52 would be more natural. Well, even though
+# some operations would be more natural, one has to recognize couple of
+# things. Base 2^52 doesn't provide advantage over base 2^44 if you look
+# at amount of multiply-n-accumulate operations. Secondly, it makes it
+# impossible to pre-compute multiples of 5 [referred to as s[]/sN in
+# reference implementations], which means that more such operations
+# would have to be performed in inner loop, which in turn makes critical
+# path longer. In other words, even though base 2^44 reduction might
+# look less elegant, overall critical path is actually shorter...
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int64 h[3]; # current hash value base 2^44
+# unsigned __int64 s[2]; # key value*20 base 2^44
+# unsigned __int64 r[3]; # key value base 2^44
+# struct { unsigned __int64 r^1, r^3, r^2, r^4; } R[4];
+# # r^n positions reflect
+# # placement in register, not
+# # memory, R[3] is R[1]*20
+
+$code.=<<___;
+.type poly1305_init_base2_44,\@function,3
+.align 32
+poly1305_init_base2_44:
+ xor %rax,%rax
+ mov %rax,0($ctx) # initialize hash value
+ mov %rax,8($ctx)
+ mov %rax,16($ctx)
+
+.Linit_base2_44:
+ lea poly1305_blocks_vpmadd52(%rip),%r10
+ lea poly1305_emit_base2_44(%rip),%r11
+
+ mov \$0x0ffffffc0fffffff,%rax
+ mov \$0x0ffffffc0ffffffc,%rcx
+ and 0($inp),%rax
+ mov \$0x00000fffffffffff,%r8
+ and 8($inp),%rcx
+ mov \$0x00000fffffffffff,%r9
+ and %rax,%r8
+ shrd \$44,%rcx,%rax
+ mov %r8,40($ctx) # r0
+ and %r9,%rax
+ shr \$24,%rcx
+ mov %rax,48($ctx) # r1
+ lea (%rax,%rax,4),%rax # *5
+ mov %rcx,56($ctx) # r2
+ shl \$2,%rax # magic <<2
+ lea (%rcx,%rcx,4),%rcx # *5
+ shl \$2,%rcx # magic <<2
+ mov %rax,24($ctx) # s1
+ mov %rcx,32($ctx) # s2
+ movq \$-1,64($ctx) # write impossible value
+___
+$code.=<<___ if ($flavour !~ /elf32/);
+ mov %r10,0(%rdx)
+ mov %r11,8(%rdx)
+___
+$code.=<<___ if ($flavour =~ /elf32/);
+ mov %r10d,0(%rdx)
+ mov %r11d,4(%rdx)
+___
+$code.=<<___;
+ mov \$1,%eax
+ ret
+.size poly1305_init_base2_44,.-poly1305_init_base2_44
+___
+{
+my ($H0,$H1,$H2,$r2r1r0,$r1r0s2,$r0s2s1,$Dlo,$Dhi) = map("%ymm$_",(0..5,16,17));
+my ($T0,$inp_permd,$inp_shift,$PAD) = map("%ymm$_",(18..21));
+my ($reduc_mask,$reduc_rght,$reduc_left) = map("%ymm$_",(22..25));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52,\@function,4
+.align 32
+poly1305_blocks_vpmadd52:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52 # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+ # if powers of the key are not calculated yet, process up to 3
+ # blocks with this single-block subroutine, otherwise ensure that
+ # length is divisible by 2 blocks and pass the rest down to next
+ # subroutine...
+
+ mov \$3,%rax
+ mov \$1,%r10
+ cmp \$4,$len # is input long
+ cmovae %r10,%rax
+ test %r8,%r8 # is power value impossible?
+ cmovns %r10,%rax
+
+ and $len,%rax # is input of favourable length?
+ jz .Lblocks_vpmadd52_4x
+
+ sub %rax,$len
+ mov \$7,%r10d
+ mov \$1,%r11d
+ kmovw %r10d,%k7
+ lea .L2_44_inp_permd(%rip),%r10
+ kmovw %r11d,%k1
+
+ vmovq $padbit,%x#$PAD
+ vmovdqa64 0(%r10),$inp_permd # .L2_44_inp_permd
+ vmovdqa64 32(%r10),$inp_shift # .L2_44_inp_shift
+ vpermq \$0xcf,$PAD,$PAD
+ vmovdqa64 64(%r10),$reduc_mask # .L2_44_mask
+
+ vmovdqu64 0($ctx),${Dlo}{%k7}{z} # load hash value
+ vmovdqu64 40($ctx),${r2r1r0}{%k7}{z} # load keys
+ vmovdqu64 32($ctx),${r1r0s2}{%k7}{z}
+ vmovdqu64 24($ctx),${r0s2s1}{%k7}{z}
+
+ vmovdqa64 96(%r10),$reduc_rght # .L2_44_shift_rgt
+ vmovdqa64 128(%r10),$reduc_left # .L2_44_shift_lft
+
+ jmp .Loop_vpmadd52
+
+.align 32
+.Loop_vpmadd52:
+ vmovdqu32 0($inp),%x#$T0 # load input as ----3210
+ lea 16($inp),$inp
+
+ vpermd $T0,$inp_permd,$T0 # ----3210 -> --322110
+ vpsrlvq $inp_shift,$T0,$T0
+ vpandq $reduc_mask,$T0,$T0
+ vporq $PAD,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo # accumulate input
+
+ vpermq \$0,$Dlo,${H0}{%k7}{z} # smash hash value
+ vpermq \$0b01010101,$Dlo,${H1}{%k7}{z}
+ vpermq \$0b10101010,$Dlo,${H2}{%k7}{z}
+
+ vpxord $Dlo,$Dlo,$Dlo
+ vpxord $Dhi,$Dhi,$Dhi
+
+ vpmadd52luq $r2r1r0,$H0,$Dlo
+ vpmadd52huq $r2r1r0,$H0,$Dhi
+
+ vpmadd52luq $r1r0s2,$H1,$Dlo
+ vpmadd52huq $r1r0s2,$H1,$Dhi
+
+ vpmadd52luq $r0s2s1,$H2,$Dlo
+ vpmadd52huq $r0s2s1,$H2,$Dhi
+
+ vpsrlvq $reduc_rght,$Dlo,$T0 # 0 in topmost qword
+ vpsllvq $reduc_left,$Dhi,$Dhi # 0 in topmost qword
+ vpandq $reduc_mask,$Dlo,$Dlo
+
+ vpaddq $T0,$Dhi,$Dhi
+
+ vpermq \$0b10010011,$Dhi,$Dhi # 0 in lowest qword
+
+ vpaddq $Dhi,$Dlo,$Dlo # note topmost qword :-)
+
+ vpsrlvq $reduc_rght,$Dlo,$T0 # 0 in topmost word
+ vpandq $reduc_mask,$Dlo,$Dlo
+
+ vpermq \$0b10010011,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo
+
+ vpermq \$0b10010011,$Dlo,${T0}{%k1}{z}
+
+ vpaddq $T0,$Dlo,$Dlo
+ vpsllq \$2,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo
+
+ dec %rax # len-=16
+ jnz .Loop_vpmadd52
+
+ vmovdqu64 $Dlo,0($ctx){%k7} # store hash value
+
+ test $len,$len
+ jnz .Lblocks_vpmadd52_4x
+
+.Lno_data_vpmadd52:
+ ret
+.size poly1305_blocks_vpmadd52,.-poly1305_blocks_vpmadd52
+___
+}
+{
+########################################################################
+# As implied by its name 4x subroutine processes 4 blocks in parallel
+# (but handles even 4*n+2 blocks lengths). It takes up to 4th key power
+# and is handled in 256-bit %ymm registers.
+
+my ($H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2) = map("%ymm$_",(0..5,16,17));
+my ($D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi) = map("%ymm$_",(18..23));
+my ($T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD) = map("%ymm$_",(24..31));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52_4x,\@function,4
+.align 32
+poly1305_blocks_vpmadd52_4x:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52_4x # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+.Lblocks_vpmadd52_4x:
+ vpbroadcastq $padbit,$PAD
+
+ vmovdqa64 .Lx_mask44(%rip),$mask44
+ mov \$5,%eax
+ vmovdqa64 .Lx_mask42(%rip),$mask42
+ kmovw %eax,%k1 # used in 2x path
+
+ test %r8,%r8 # is power value impossible?
+ js .Linit_vpmadd52 # if it is, then init R[4]
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+ test \$3,$len # is length 4*n+2?
+ jnz .Lblocks_vpmadd52_2x_do
+
+.Lblocks_vpmadd52_4x_do:
+ vpbroadcastq 64($ctx),$R0 # load 4th power of the key
+ vpbroadcastq 96($ctx),$R1
+ vpbroadcastq 128($ctx),$R2
+ vpbroadcastq 160($ctx),$S1
+
+.Lblocks_vpmadd52_4x_key_loaded:
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ test \$7,$len # is len 8*n?
+ jz .Lblocks_vpmadd52_8x
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*2($inp),$T3
+ lea 16*4($inp),$inp
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as 3-1-2-0
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ sub \$4,$len
+ jz .Ltail_vpmadd52_4x
+ jmp .Loop_vpmadd52_4x
+ ud2
+
+.align 32
+.Linit_vpmadd52:
+ vmovq 24($ctx),%x#$S1 # load key
+ vmovq 56($ctx),%x#$H2
+ vmovq 32($ctx),%x#$S2
+ vmovq 40($ctx),%x#$R0
+ vmovq 48($ctx),%x#$R1
+
+ vmovdqa $R0,$H0
+ vmovdqa $R1,$H1
+ vmovdqa $H2,$R2
+
+ mov \$2,%eax
+
+.Lmul_init_vpmadd52:
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ dec %eax
+ jz .Ldone_init_vpmadd52
+
+ vpunpcklqdq $R1,$H1,$R1 # 1,2
+ vpbroadcastq %x#$H1,%x#$H1 # 2,2
+ vpunpcklqdq $R2,$H2,$R2
+ vpbroadcastq %x#$H2,%x#$H2
+ vpunpcklqdq $R0,$H0,$R0
+ vpbroadcastq %x#$H0,%x#$H0
+
+ vpsllq \$2,$R1,$S1 # S1 = R1*5*4
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R1,$S1,$S1
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S1,$S1
+ vpsllq \$2,$S2,$S2
+
+ jmp .Lmul_init_vpmadd52
+ ud2
+
+.align 32
+.Ldone_init_vpmadd52:
+ vinserti128 \$1,%x#$R1,$H1,$R1 # 1,2,3,4
+ vinserti128 \$1,%x#$R2,$H2,$R2
+ vinserti128 \$1,%x#$R0,$H0,$R0
+
+ vpermq \$0b11011000,$R1,$R1 # 1,3,2,4
+ vpermq \$0b11011000,$R2,$R2
+ vpermq \$0b11011000,$R0,$R0
+
+ vpsllq \$2,$R1,$S1 # S1 = R1*5*4
+ vpaddq $R1,$S1,$S1
+ vpsllq \$2,$S1,$S1
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+ test \$3,$len # is length 4*n+2?
+ jnz .Ldone_init_vpmadd52_2x
+
+ vmovdqu64 $R0,64($ctx) # save key powers
+ vpbroadcastq %x#$R0,$R0 # broadcast 4th power
+ vmovdqu64 $R1,96($ctx)
+ vpbroadcastq %x#$R1,$R1
+ vmovdqu64 $R2,128($ctx)
+ vpbroadcastq %x#$R2,$R2
+ vmovdqu64 $S1,160($ctx)
+ vpbroadcastq %x#$S1,$S1
+
+ jmp .Lblocks_vpmadd52_4x_key_loaded
+ ud2
+
+.align 32
+.Ldone_init_vpmadd52_2x:
+ vmovdqu64 $R0,64($ctx) # save key powers
+ vpsrldq \$8,$R0,$R0 # 0-1-0-2
+ vmovdqu64 $R1,96($ctx)
+ vpsrldq \$8,$R1,$R1
+ vmovdqu64 $R2,128($ctx)
+ vpsrldq \$8,$R2,$R2
+ vmovdqu64 $S1,160($ctx)
+ vpsrldq \$8,$S1,$S1
+ jmp .Lblocks_vpmadd52_2x_key_loaded
+ ud2
+
+.align 32
+.Lblocks_vpmadd52_2x_do:
+ vmovdqu64 128+8($ctx),${R2}{%k1}{z}# load 2nd and 1st key powers
+ vmovdqu64 160+8($ctx),${S1}{%k1}{z}
+ vmovdqu64 64+8($ctx),${R0}{%k1}{z}
+ vmovdqu64 96+8($ctx),${R1}{%k1}{z}
+
+.Lblocks_vpmadd52_2x_key_loaded:
+ vmovdqu64 16*0($inp),$T2 # load data
+ vpxorq $T3,$T3,$T3
+ lea 16*2($inp),$inp
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as x-1-x-0
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ jmp .Ltail_vpmadd52_2x
+ ud2
+
+.align 32
+.Loop_vpmadd52_4x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*2($inp),$T3
+ lea 16*4($inp),$inp
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction (interleaved with data splat)
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpsrlq \$24,$T3,$T2
+ vporq $PAD,$T2,$T2
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ sub \$4,$len # len-=64
+ jnz .Loop_vpmadd52_4x
+
+.Ltail_vpmadd52_4x:
+ vmovdqu64 128($ctx),$R2 # load all key powers
+ vmovdqu64 160($ctx),$S1
+ vmovdqu64 64($ctx),$R0
+ vmovdqu64 96($ctx),$R1
+
+.Ltail_vpmadd52_2x:
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ kmovw %eax,%k1
+ vpsrldq \$8,$D0lo,$T0
+ vpsrldq \$8,$D0hi,$H0
+ vpsrldq \$8,$D1lo,$T1
+ vpsrldq \$8,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpsrldq \$8,$D2lo,$T2
+ vpsrldq \$8,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vpermq \$0x2,$D0lo,$T0
+ vpermq \$0x2,$D0hi,$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vpermq \$0x2,$D1lo,$T1
+ vpermq \$0x2,$D1hi,$H1
+ vpaddq $T0,$D0lo,${D0lo}{%k1}{z}
+ vpaddq $H0,$D0hi,${D0hi}{%k1}{z}
+ vpermq \$0x2,$D2lo,$T2
+ vpermq \$0x2,$D2hi,$H2
+ vpaddq $T1,$D1lo,${D1lo}{%k1}{z}
+ vpaddq $H1,$D1hi,${D1hi}{%k1}{z}
+ vpaddq $T2,$D2lo,${D2lo}{%k1}{z}
+ vpaddq $H2,$D2hi,${D2hi}{%k1}{z}
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+ # at this point $len is
+ # either 4*n+2 or 0...
+ sub \$2,$len # len-=32
+ ja .Lblocks_vpmadd52_4x_do
+
+ vmovq %x#$H0,0($ctx)
+ vmovq %x#$H1,8($ctx)
+ vmovq %x#$H2,16($ctx)
+ vzeroall
+
+.Lno_data_vpmadd52_4x:
+ ret
+.size poly1305_blocks_vpmadd52_4x,.-poly1305_blocks_vpmadd52_4x
+___
+}
+{
+########################################################################
+# As implied by its name 8x subroutine processes 8 blocks in parallel...
+# This is intermediate version, as it's used only in cases when input
+# length is either 8*n, 8*n+1 or 8*n+2...
+
+my ($H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2) = map("%ymm$_",(0..5,16,17));
+my ($D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi) = map("%ymm$_",(18..23));
+my ($T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD) = map("%ymm$_",(24..31));
+my ($RR0,$RR1,$RR2,$SS1,$SS2) = map("%ymm$_",(6..10));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52_8x,\@function,4
+.align 32
+poly1305_blocks_vpmadd52_8x:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52_8x # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+ vmovdqa64 .Lx_mask44(%rip),$mask44
+ vmovdqa64 .Lx_mask42(%rip),$mask42
+
+ test %r8,%r8 # is power value impossible?
+ js .Linit_vpmadd52 # if it is, then init R[4]
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+.Lblocks_vpmadd52_8x:
+ ################################################################
+ # fist we calculate more key powers
+
+ vmovdqu64 128($ctx),$R2 # load 1-3-2-4 powers
+ vmovdqu64 160($ctx),$S1
+ vmovdqu64 64($ctx),$R0
+ vmovdqu64 96($ctx),$R1
+
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ vpbroadcastq %x#$R2,$RR2 # broadcast 4th power
+ vpbroadcastq %x#$R0,$RR0
+ vpbroadcastq %x#$R1,$RR1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $RR2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $RR2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $RR2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $RR2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $RR2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $RR2,$R0,$D2hi
+
+ vpmadd52luq $RR0,$R0,$D0lo
+ vpmadd52huq $RR0,$R0,$D0hi
+ vpmadd52luq $RR0,$R1,$D1lo
+ vpmadd52huq $RR0,$R1,$D1hi
+ vpmadd52luq $RR0,$R2,$D2lo
+ vpmadd52huq $RR0,$R2,$D2hi
+
+ vpmadd52luq $RR1,$S2,$D0lo
+ vpmadd52huq $RR1,$S2,$D0hi
+ vpmadd52luq $RR1,$R0,$D1lo
+ vpmadd52huq $RR1,$R0,$D1hi
+ vpmadd52luq $RR1,$R1,$D2lo
+ vpmadd52huq $RR1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$RR0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$RR1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$RR2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$RR0,$RR0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$RR0,$RR0
+
+ vpsrlq \$44,$RR0,$tmp # additional step
+ vpandq $mask44,$RR0,$RR0
+
+ vpaddq $tmp,$RR1,$RR1
+
+ ################################################################
+ # At this point Rx holds 1324 powers, RRx - 5768, and the goal
+ # is 15263748, which reflects how data is loaded...
+
+ vpunpcklqdq $R2,$RR2,$T2 # 3748
+ vpunpckhqdq $R2,$RR2,$R2 # 1526
+ vpunpcklqdq $R0,$RR0,$T0
+ vpunpckhqdq $R0,$RR0,$R0
+ vpunpcklqdq $R1,$RR1,$T1
+ vpunpckhqdq $R1,$RR1,$R1
+___
+######## switch to %zmm
+map(s/%y/%z/, $H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2);
+map(s/%y/%z/, $D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi);
+map(s/%y/%z/, $T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD);
+map(s/%y/%z/, $RR0,$RR1,$RR2,$SS1,$SS2);
+
+$code.=<<___;
+ vshufi64x2 \$0x44,$R2,$T2,$RR2 # 15263748
+ vshufi64x2 \$0x44,$R0,$T0,$RR0
+ vshufi64x2 \$0x44,$R1,$T1,$RR1
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*4($inp),$T3
+ lea 16*8($inp),$inp
+
+ vpsllq \$2,$RR2,$SS2 # S2 = R2*5*4
+ vpsllq \$2,$RR1,$SS1 # S1 = R1*5*4
+ vpaddq $RR2,$SS2,$SS2
+ vpaddq $RR1,$SS1,$SS1
+ vpsllq \$2,$SS2,$SS2
+ vpsllq \$2,$SS1,$SS1
+
+ vpbroadcastq $padbit,$PAD
+ vpbroadcastq %x#$mask44,$mask44
+ vpbroadcastq %x#$mask42,$mask42
+
+ vpbroadcastq %x#$SS1,$S1 # broadcast 8th power
+ vpbroadcastq %x#$SS2,$S2
+ vpbroadcastq %x#$RR0,$R0
+ vpbroadcastq %x#$RR1,$R1
+ vpbroadcastq %x#$RR2,$R2
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as 73625140
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ sub \$8,$len
+ jz .Ltail_vpmadd52_8x
+ jmp .Loop_vpmadd52_8x
+
+.align 32
+.Loop_vpmadd52_8x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*4($inp),$T3
+ lea 16*8($inp),$inp
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction (interleaved with data splat)
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpsrlq \$24,$T3,$T2
+ vporq $PAD,$T2,$T2
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ sub \$8,$len # len-=128
+ jnz .Loop_vpmadd52_8x
+
+.Ltail_vpmadd52_8x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$SS1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$SS1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$SS2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$SS2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$RR0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$RR0,$D2hi
+
+ vpmadd52luq $H0,$RR0,$D0lo
+ vpmadd52huq $H0,$RR0,$D0hi
+ vpmadd52luq $H0,$RR1,$D1lo
+ vpmadd52huq $H0,$RR1,$D1hi
+ vpmadd52luq $H0,$RR2,$D2lo
+ vpmadd52huq $H0,$RR2,$D2hi
+
+ vpmadd52luq $H1,$SS2,$D0lo
+ vpmadd52huq $H1,$SS2,$D0hi
+ vpmadd52luq $H1,$RR0,$D1lo
+ vpmadd52huq $H1,$RR0,$D1hi
+ vpmadd52luq $H1,$RR1,$D2lo
+ vpmadd52huq $H1,$RR1,$D2hi
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ kmovw %eax,%k1
+ vpsrldq \$8,$D0lo,$T0
+ vpsrldq \$8,$D0hi,$H0
+ vpsrldq \$8,$D1lo,$T1
+ vpsrldq \$8,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpsrldq \$8,$D2lo,$T2
+ vpsrldq \$8,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vpermq \$0x2,$D0lo,$T0
+ vpermq \$0x2,$D0hi,$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vpermq \$0x2,$D1lo,$T1
+ vpermq \$0x2,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpermq \$0x2,$D2lo,$T2
+ vpermq \$0x2,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vextracti64x4 \$1,$D0lo,%y#$T0
+ vextracti64x4 \$1,$D0hi,%y#$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vextracti64x4 \$1,$D1lo,%y#$T1
+ vextracti64x4 \$1,$D1hi,%y#$H1
+ vextracti64x4 \$1,$D2lo,%y#$T2
+ vextracti64x4 \$1,$D2hi,%y#$H2
+___
+######## switch back to %ymm
+map(s/%z/%y/, $H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2);
+map(s/%z/%y/, $D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi);
+map(s/%z/%y/, $T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD);
+
+$code.=<<___;
+ vpaddq $T0,$D0lo,${D0lo}{%k1}{z}
+ vpaddq $H0,$D0hi,${D0hi}{%k1}{z}
+ vpaddq $T1,$D1lo,${D1lo}{%k1}{z}
+ vpaddq $H1,$D1hi,${D1hi}{%k1}{z}
+ vpaddq $T2,$D2lo,${D2lo}{%k1}{z}
+ vpaddq $H2,$D2hi,${D2hi}{%k1}{z}
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ ################################################################
+
+ vmovq %x#$H0,0($ctx)
+ vmovq %x#$H1,8($ctx)
+ vmovq %x#$H2,16($ctx)
+ vzeroall
+
+.Lno_data_vpmadd52_8x:
+ ret
+.size poly1305_blocks_vpmadd52_8x,.-poly1305_blocks_vpmadd52_8x
+___
+}
+$code.=<<___;
+.type poly1305_emit_base2_44,\@function,3
+.align 32
+poly1305_emit_base2_44:
+ mov 0($ctx),%r8 # load hash value
+ mov 8($ctx),%r9
+ mov 16($ctx),%r10
+
+ mov %r9,%rax
+ shr \$20,%r9
+ shl \$44,%rax
+ mov %r10,%rcx
+ shr \$40,%r10
+ shl \$24,%rcx
+
+ add %rax,%r8
+ adc %rcx,%r9
+ adc \$0,%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ ret
+.size poly1305_emit_base2_44,.-poly1305_emit_base2_44
+___
+} } }
+}
+
+if (!$kernel)
+{ # chacha20-poly1305 helpers
+my ($out,$inp,$otp,$len)=$win64 ? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
+ ("%rdi","%rsi","%rdx","%rcx"); # Unix order
+$code.=<<___;
+.globl xor128_encrypt_n_pad
+.type xor128_encrypt_n_pad,\@abi-omnipotent
+.align 16
+xor128_encrypt_n_pad:
+ sub $otp,$inp
+ sub $otp,$out
+ mov $len,%r10 # put len aside
+ shr \$4,$len # len / 16
+ jz .Ltail_enc
+ nop
+.Loop_enc_xmm:
+ movdqu ($inp,$otp),%xmm0
+ pxor ($otp),%xmm0
+ movdqu %xmm0,($out,$otp)
+ movdqa %xmm0,($otp)
+ lea 16($otp),$otp
+ dec $len
+ jnz .Loop_enc_xmm
+
+ and \$15,%r10 # len % 16
+ jz .Ldone_enc
+
+.Ltail_enc:
+ mov \$16,$len
+ sub %r10,$len
+ xor %eax,%eax
+.Loop_enc_byte:
+ mov ($inp,$otp),%al
+ xor ($otp),%al
+ mov %al,($out,$otp)
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec %r10
+ jnz .Loop_enc_byte
+
+ xor %eax,%eax
+.Loop_enc_pad:
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec $len
+ jnz .Loop_enc_pad
+
+.Ldone_enc:
+ mov $otp,%rax
+ ret
+.size xor128_encrypt_n_pad,.-xor128_encrypt_n_pad
+
+.globl xor128_decrypt_n_pad
+.type xor128_decrypt_n_pad,\@abi-omnipotent
+.align 16
+xor128_decrypt_n_pad:
+ sub $otp,$inp
+ sub $otp,$out
+ mov $len,%r10 # put len aside
+ shr \$4,$len # len / 16
+ jz .Ltail_dec
+ nop
+.Loop_dec_xmm:
+ movdqu ($inp,$otp),%xmm0
+ movdqa ($otp),%xmm1
+ pxor %xmm0,%xmm1
+ movdqu %xmm1,($out,$otp)
+ movdqa %xmm0,($otp)
+ lea 16($otp),$otp
+ dec $len
+ jnz .Loop_dec_xmm
+
+ pxor %xmm1,%xmm1
+ and \$15,%r10 # len % 16
+ jz .Ldone_dec
+
+.Ltail_dec:
+ mov \$16,$len
+ sub %r10,$len
+ xor %eax,%eax
+ xor %r11,%r11
+.Loop_dec_byte:
+ mov ($inp,$otp),%r11b
+ mov ($otp),%al
+ xor %r11b,%al
+ mov %al,($out,$otp)
+ mov %r11b,($otp)
+ lea 1($otp),$otp
+ dec %r10
+ jnz .Loop_dec_byte
+
+ xor %eax,%eax
+.Loop_dec_pad:
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec $len
+ jnz .Loop_dec_pad
+
+.Ldone_dec:
+ mov $otp,%rax
+ ret
+.size xor128_decrypt_n_pad,.-xor128_decrypt_n_pad
+___
+}
+
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+# CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+$rec="%rcx";
+$frame="%rdx";
+$context="%r8";
+$disp="%r9";
+
+$code.=<<___;
+.extern __imp_RtlVirtualUnwind
+.type se_handler,\@abi-omnipotent
+.align 16
+se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ mov 8($disp),%rsi # disp->ImageBase
+ mov 56($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<.Lprologue
+ jb .Lcommon_seh_tail
+
+ mov 152($context),%rax # pull context->Rsp
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=.Lepilogue
+ jae .Lcommon_seh_tail
+
+ lea 48(%rax),%rax
+
+ mov -8(%rax),%rbx
+ mov -16(%rax),%rbp
+ mov -24(%rax),%r12
+ mov -32(%rax),%r13
+ mov -40(%rax),%r14
+ mov -48(%rax),%r15
+ mov %rbx,144($context) # restore context->Rbx
+ mov %rbp,160($context) # restore context->Rbp
+ mov %r12,216($context) # restore context->R12
+ mov %r13,224($context) # restore context->R13
+ mov %r14,232($context) # restore context->R14
+ mov %r15,240($context) # restore context->R14
+
+ jmp .Lcommon_seh_tail
+.size se_handler,.-se_handler
+
+.type avx_handler,\@abi-omnipotent
+.align 16
+avx_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ mov 8($disp),%rsi # disp->ImageBase
+ mov 56($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<prologue label
+ jb .Lcommon_seh_tail
+
+ mov 152($context),%rax # pull context->Rsp
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=epilogue label
+ jae .Lcommon_seh_tail
+
+ mov 208($context),%rax # pull context->R11
+
+ lea 0x50(%rax),%rsi
+ lea 0xf8(%rax),%rax
+ lea 512($context),%rdi # &context.Xmm6
+ mov \$20,%ecx
+ .long 0xa548f3fc # cld; rep movsq
+
+.Lcommon_seh_tail:
+ mov 8(%rax),%rdi
+ mov 16(%rax),%rsi
+ mov %rax,152($context) # restore context->Rsp
+ mov %rsi,168($context) # restore context->Rsi
+ mov %rdi,176($context) # restore context->Rdi
+
+ mov 40($disp),%rdi # disp->ContextRecord
+ mov $context,%rsi # context
+ mov \$154,%ecx # sizeof(CONTEXT)
+ .long 0xa548f3fc # cld; rep movsq
+
+ mov $disp,%rsi
+ xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
+ mov 8(%rsi),%rdx # arg2, disp->ImageBase
+ mov 0(%rsi),%r8 # arg3, disp->ControlPc
+ mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
+ mov 40(%rsi),%r10 # disp->ContextRecord
+ lea 56(%rsi),%r11 # &disp->HandlerData
+ lea 24(%rsi),%r12 # &disp->EstablisherFrame
+ mov %r10,32(%rsp) # arg5
+ mov %r11,40(%rsp) # arg6
+ mov %r12,48(%rsp) # arg7
+ mov %rcx,56(%rsp) # arg8, (NULL)
+ call *__imp_RtlVirtualUnwind(%rip)
+
+ mov \$1,%eax # ExceptionContinueSearch
+ add \$64,%rsp
+ popfq
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbp
+ pop %rbx
+ pop %rdi
+ pop %rsi
+ ret
+.size avx_handler,.-avx_handler
+
+.section .pdata
+.align 4
+ .rva .LSEH_begin_poly1305_init_x86_64
+ .rva .LSEH_end_poly1305_init_x86_64
+ .rva .LSEH_info_poly1305_init_x86_64
+
+ .rva .LSEH_begin_poly1305_blocks_x86_64
+ .rva .LSEH_end_poly1305_blocks_x86_64
+ .rva .LSEH_info_poly1305_blocks_x86_64
+
+ .rva .LSEH_begin_poly1305_emit_x86_64
+ .rva .LSEH_end_poly1305_emit_x86_64
+ .rva .LSEH_info_poly1305_emit_x86_64
+___
+$code.=<<___ if ($avx);
+ .rva .LSEH_begin_poly1305_blocks_avx
+ .rva .Lbase2_64_avx
+ .rva .LSEH_info_poly1305_blocks_avx_1
+
+ .rva .Lbase2_64_avx
+ .rva .Leven_avx
+ .rva .LSEH_info_poly1305_blocks_avx_2
+
+ .rva .Leven_avx
+ .rva .LSEH_end_poly1305_blocks_avx
+ .rva .LSEH_info_poly1305_blocks_avx_3
+
+ .rva .LSEH_begin_poly1305_emit_avx
+ .rva .LSEH_end_poly1305_emit_avx
+ .rva .LSEH_info_poly1305_emit_avx
+___
+$code.=<<___ if ($avx>1);
+ .rva .LSEH_begin_poly1305_blocks_avx2
+ .rva .Lbase2_64_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_1
+
+ .rva .Lbase2_64_avx2
+ .rva .Leven_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_2
+
+ .rva .Leven_avx2
+ .rva .LSEH_end_poly1305_blocks_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_3
+___
+$code.=<<___ if ($avx>2);
+ .rva .LSEH_begin_poly1305_blocks_avx512
+ .rva .LSEH_end_poly1305_blocks_avx512
+ .rva .LSEH_info_poly1305_blocks_avx512
+___
+$code.=<<___;
+.section .xdata
+.align 8
+.LSEH_info_poly1305_init_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_init_x86_64,.LSEH_begin_poly1305_init_x86_64
+
+.LSEH_info_poly1305_blocks_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_body,.Lblocks_epilogue
+
+.LSEH_info_poly1305_emit_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_emit_x86_64,.LSEH_begin_poly1305_emit_x86_64
+___
+$code.=<<___ if ($avx);
+.LSEH_info_poly1305_blocks_avx_1:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_avx_body,.Lblocks_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx_2:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lbase2_64_avx_body,.Lbase2_64_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx_3:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx_body,.Ldo_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_emit_avx:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_emit_avx,.LSEH_begin_poly1305_emit_avx
+___
+$code.=<<___ if ($avx>1);
+.LSEH_info_poly1305_blocks_avx2_1:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_avx2_body,.Lblocks_avx2_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx2_2:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lbase2_64_avx2_body,.Lbase2_64_avx2_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx2_3:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx2_body,.Ldo_avx2_epilogue # HandlerData[]
+___
+$code.=<<___ if ($avx>2);
+.LSEH_info_poly1305_blocks_avx512:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx512_body,.Ldo_avx512_epilogue # HandlerData[]
+___
+}
+
+open SELF,$0;
+while(<SELF>) {
+ next if (/^#!/);
+ last if (!s/^#/\/\// and !/^$/);
+ print;
+}
+close SELF;
+
+foreach (split('\n',$code)) {
+ s/\`([^\`]*)\`/eval($1)/ge;
+ s/%r([a-z]+)#d/%e$1/g;
+ s/%r([0-9]+)#d/%r$1d/g;
+ s/%x#%[yz]/%x/g or s/%y#%z/%y/g or s/%z#%[yz]/%z/g;
+
+ if ($kernel) {
+ s/(^\.type.*),[0-9]+$/\1/;
+ s/(^\.type.*),\@abi-omnipotent+$/\1,\@function/;
+ next if /^\.cfi.*/;
+ }
+
+ print $_,"\n";
+}
+close STDOUT;
diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
index 0cc4537e6617..79bb58737d52 100644
--- a/arch/x86/crypto/poly1305_glue.c
+++ b/arch/x86/crypto/poly1305_glue.c
@@ -1,8 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
+// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
- * Poly1305 authenticator algorithm, RFC7539, SIMD glue code
- *
- * Copyright (C) 2015 Martin Willi
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#include <crypto/algapi.h>
@@ -13,108 +11,166 @@
#include <linux/jump_label.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <asm/intel-family.h>
#include <asm/simd.h>
-asmlinkage void poly1305_block_sse2(u32 *h, const u8 *src,
- const u32 *r, unsigned int blocks);
-asmlinkage void poly1305_2block_sse2(u32 *h, const u8 *src, const u32 *r,
- unsigned int blocks, const u32 *u);
-asmlinkage void poly1305_4block_avx2(u32 *h, const u8 *src, const u32 *r,
- unsigned int blocks, const u32 *u);
-
-static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_simd);
+asmlinkage void poly1305_init_x86_64(void *ctx,
+ const u8 key[POLY1305_KEY_SIZE]);
+asmlinkage void poly1305_blocks_x86_64(void *ctx, const u8 *inp,
+ const size_t len, const u32 padbit);
+asmlinkage void poly1305_emit_x86_64(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4]);
+asmlinkage void poly1305_emit_avx(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4]);
+asmlinkage void poly1305_blocks_avx(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_blocks_avx2(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_blocks_avx512(void *ctx, const u8 *inp,
+ const size_t len, const u32 padbit);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx);
static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx2);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx512);
+
+struct poly1305_arch_internal {
+ union {
+ struct {
+ u32 h[5];
+ u32 is_base2_26;
+ };
+ u64 hs[3];
+ };
+ u64 r[2];
+ u64 pad;
+ struct { u32 r2, r1, r4, r3; } rn[9];
+};
-static void poly1305_simd_mult(u32 *a, const u32 *b)
+/* The AVX code uses base 2^26, while the scalar code uses base 2^64. If we hit
+ * the unfortunate situation of using AVX and then having to go back to scalar
+ * -- because the user is silly and has called the update function from two
+ * separate contexts -- then we need to convert back to the original base before
+ * proceeding. It is possible to reason that the initial reduction below is
+ * sufficient given the implementation invariants. However, for an avoidance of
+ * doubt and because this is not performance critical, we do the full reduction
+ * anyway. Z3 proof of below function: https://xn--4db.cc/ltPtHCKN/py
+ */
+static void convert_to_base2_64(void *ctx)
{
- u8 m[POLY1305_BLOCK_SIZE];
-
- memset(m, 0, sizeof(m));
- /* The poly1305 block function adds a hi-bit to the accumulator which
- * we don't need for key multiplication; compensate for it. */
- a[4] -= 1 << 24;
- poly1305_block_sse2(a, m, b, 1);
+ struct poly1305_arch_internal *state = ctx;
+ u32 cy;
+
+ if (!state->is_base2_26)
+ return;
+
+ cy = state->h[0] >> 26; state->h[0] &= 0x3ffffff; state->h[1] += cy;
+ cy = state->h[1] >> 26; state->h[1] &= 0x3ffffff; state->h[2] += cy;
+ cy = state->h[2] >> 26; state->h[2] &= 0x3ffffff; state->h[3] += cy;
+ cy = state->h[3] >> 26; state->h[3] &= 0x3ffffff; state->h[4] += cy;
+ state->hs[0] = ((u64)state->h[2] << 52) | ((u64)state->h[1] << 26) | state->h[0];
+ state->hs[1] = ((u64)state->h[4] << 40) | ((u64)state->h[3] << 14) | (state->h[2] >> 12);
+ state->hs[2] = state->h[4] >> 24;
+#define ULT(a, b) ((a ^ ((a ^ b) | ((a - b) ^ b))) >> (sizeof(a) * 8 - 1))
+ cy = (state->hs[2] >> 2) + (state->hs[2] & ~3ULL);
+ state->hs[2] &= 3;
+ state->hs[0] += cy;
+ state->hs[1] += (cy = ULT(state->hs[0], cy));
+ state->hs[2] += ULT(state->hs[1], cy);
+#undef ULT
+ state->is_base2_26 = 0;
}
-static unsigned int poly1305_scalar_blocks(struct poly1305_desc_ctx *dctx,
- const u8 *src, unsigned int srclen)
+static void poly1305_simd_init(void *ctx, const u8 key[POLY1305_KEY_SIZE])
{
- unsigned int datalen;
-
- if (unlikely(!dctx->sset)) {
- datalen = crypto_poly1305_setdesckey(dctx, src, srclen);
- src += srclen - datalen;
- srclen = datalen;
- }
- if (srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_core_blocks(&dctx->h, dctx->r, src,
- srclen / POLY1305_BLOCK_SIZE, 1);
- srclen %= POLY1305_BLOCK_SIZE;
- }
- return srclen;
+ poly1305_init_x86_64(ctx, key);
}
-static unsigned int poly1305_simd_blocks(struct poly1305_desc_ctx *dctx,
- const u8 *src, unsigned int srclen)
+static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len,
+ const u32 padbit)
{
- unsigned int blocks, datalen;
-
- if (unlikely(!dctx->sset)) {
- datalen = crypto_poly1305_setdesckey(dctx, src, srclen);
- src += srclen - datalen;
- srclen = datalen;
+ struct poly1305_arch_internal *state = ctx;
+
+ /* SIMD disables preemption, so relax after processing each page. */
+ BUILD_BUG_ON(PAGE_SIZE < POLY1305_BLOCK_SIZE ||
+ PAGE_SIZE % POLY1305_BLOCK_SIZE);
+
+ if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx) ||
+ (len < (POLY1305_BLOCK_SIZE * 18) && !state->is_base2_26) ||
+ !crypto_simd_usable()) {
+ convert_to_base2_64(ctx);
+ poly1305_blocks_x86_64(ctx, inp, len, padbit);
+ return;
}
- if (IS_ENABLED(CONFIG_AS_AVX2) &&
- static_branch_likely(&poly1305_use_avx2) &&
- srclen >= POLY1305_BLOCK_SIZE * 4) {
- if (unlikely(dctx->rset < 4)) {
- if (dctx->rset < 2) {
- dctx->r[1] = dctx->r[0];
- poly1305_simd_mult(dctx->r[1].r, dctx->r[0].r);
- }
- dctx->r[2] = dctx->r[1];
- poly1305_simd_mult(dctx->r[2].r, dctx->r[0].r);
- dctx->r[3] = dctx->r[2];
- poly1305_simd_mult(dctx->r[3].r, dctx->r[0].r);
- dctx->rset = 4;
- }
- blocks = srclen / (POLY1305_BLOCK_SIZE * 4);
- poly1305_4block_avx2(dctx->h.h, src, dctx->r[0].r, blocks,
- dctx->r[1].r);
- src += POLY1305_BLOCK_SIZE * 4 * blocks;
- srclen -= POLY1305_BLOCK_SIZE * 4 * blocks;
+ for (;;) {
+ const size_t bytes = min_t(size_t, len, PAGE_SIZE);
+
+ kernel_fpu_begin();
+ if (IS_ENABLED(CONFIG_AS_AVX512) && static_branch_likely(&poly1305_use_avx512))
+ poly1305_blocks_avx512(ctx, inp, bytes, padbit);
+ else if (IS_ENABLED(CONFIG_AS_AVX2) && static_branch_likely(&poly1305_use_avx2))
+ poly1305_blocks_avx2(ctx, inp, bytes, padbit);
+ else
+ poly1305_blocks_avx(ctx, inp, bytes, padbit);
+ kernel_fpu_end();
+ len -= bytes;
+ if (!len)
+ break;
+ inp += bytes;
}
+}
- if (likely(srclen >= POLY1305_BLOCK_SIZE * 2)) {
- if (unlikely(dctx->rset < 2)) {
- dctx->r[1] = dctx->r[0];
- poly1305_simd_mult(dctx->r[1].r, dctx->r[0].r);
- dctx->rset = 2;
- }
- blocks = srclen / (POLY1305_BLOCK_SIZE * 2);
- poly1305_2block_sse2(dctx->h.h, src, dctx->r[0].r,
- blocks, dctx->r[1].r);
- src += POLY1305_BLOCK_SIZE * 2 * blocks;
- srclen -= POLY1305_BLOCK_SIZE * 2 * blocks;
- }
- if (srclen >= POLY1305_BLOCK_SIZE) {
- poly1305_block_sse2(dctx->h.h, src, dctx->r[0].r, 1);
- srclen -= POLY1305_BLOCK_SIZE;
- }
- return srclen;
+static void poly1305_simd_emit(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4])
+{
+ if (!IS_ENABLED(CONFIG_AS_AVX) || !static_branch_likely(&poly1305_use_avx))
+ poly1305_emit_x86_64(ctx, mac, nonce);
+ else
+ poly1305_emit_avx(ctx, mac, nonce);
}
-void poly1305_init_arch(struct poly1305_desc_ctx *desc, const u8 *key)
+void poly1305_init_arch(struct poly1305_desc_ctx *dctx, const u8 *key)
{
- poly1305_init_generic(desc, key);
+ poly1305_simd_init(&dctx->h, key);
+ dctx->s[0] = get_unaligned_le32(&key[16]);
+ dctx->s[1] = get_unaligned_le32(&key[20]);
+ dctx->s[2] = get_unaligned_le32(&key[24]);
+ dctx->s[3] = get_unaligned_le32(&key[28]);
+ dctx->buflen = 0;
+ dctx->sset = true;
}
EXPORT_SYMBOL(poly1305_init_arch);
+static unsigned int crypto_poly1305_setdctxkey(struct poly1305_desc_ctx *dctx,
+ const u8 *inp, unsigned int len)
+{
+ unsigned int acc = 0;
+ if (unlikely(!dctx->sset)) {
+ if (!dctx->rset && len >= POLY1305_BLOCK_SIZE) {
+ poly1305_simd_init(&dctx->h, inp);
+ inp += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ acc += POLY1305_BLOCK_SIZE;
+ dctx->rset = 1;
+ }
+ if (len >= POLY1305_BLOCK_SIZE) {
+ dctx->s[0] = get_unaligned_le32(&inp[0]);
+ dctx->s[1] = get_unaligned_le32(&inp[4]);
+ dctx->s[2] = get_unaligned_le32(&inp[8]);
+ dctx->s[3] = get_unaligned_le32(&inp[12]);
+ inp += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ acc += POLY1305_BLOCK_SIZE;
+ dctx->sset = true;
+ }
+ }
+ return acc;
+}
+
void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
unsigned int srclen)
{
- unsigned int bytes;
+ unsigned int bytes, used;
if (unlikely(dctx->buflen)) {
bytes = min(srclen, POLY1305_BLOCK_SIZE - dctx->buflen);
@@ -124,31 +180,19 @@ void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
dctx->buflen += bytes;
if (dctx->buflen == POLY1305_BLOCK_SIZE) {
- if (static_branch_likely(&poly1305_use_simd) &&
- likely(crypto_simd_usable())) {
- kernel_fpu_begin();
- poly1305_simd_blocks(dctx, dctx->buf,
- POLY1305_BLOCK_SIZE);
- kernel_fpu_end();
- } else {
- poly1305_scalar_blocks(dctx, dctx->buf,
- POLY1305_BLOCK_SIZE);
- }
+ if (likely(!crypto_poly1305_setdctxkey(dctx, dctx->buf, POLY1305_BLOCK_SIZE)))
+ poly1305_simd_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 1);
dctx->buflen = 0;
}
}
if (likely(srclen >= POLY1305_BLOCK_SIZE)) {
- if (static_branch_likely(&poly1305_use_simd) &&
- likely(crypto_simd_usable())) {
- kernel_fpu_begin();
- bytes = poly1305_simd_blocks(dctx, src, srclen);
- kernel_fpu_end();
- } else {
- bytes = poly1305_scalar_blocks(dctx, src, srclen);
- }
- src += srclen - bytes;
- srclen = bytes;
+ bytes = round_down(srclen, POLY1305_BLOCK_SIZE);
+ srclen -= bytes;
+ used = crypto_poly1305_setdctxkey(dctx, src, bytes);
+ if (likely(bytes - used))
+ poly1305_simd_blocks(&dctx->h, src + used, bytes - used, 1);
+ src += bytes;
}
if (unlikely(srclen)) {
@@ -158,9 +202,17 @@ void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
}
EXPORT_SYMBOL(poly1305_update_arch);
-void poly1305_final_arch(struct poly1305_desc_ctx *desc, u8 *digest)
+void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
{
- poly1305_final_generic(desc, digest);
+ if (unlikely(dctx->buflen)) {
+ dctx->buf[dctx->buflen++] = 1;
+ memset(dctx->buf + dctx->buflen, 0,
+ POLY1305_BLOCK_SIZE - dctx->buflen);
+ poly1305_simd_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
+ }
+
+ poly1305_simd_emit(&dctx->h, dst, dctx->s);
+ *dctx = (struct poly1305_desc_ctx){};
}
EXPORT_SYMBOL(poly1305_final_arch);
@@ -168,38 +220,34 @@ static int crypto_poly1305_init(struct shash_desc *desc)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- poly1305_core_init(&dctx->h);
- dctx->buflen = 0;
- dctx->rset = 0;
- dctx->sset = false;
-
+ *dctx = (struct poly1305_desc_ctx){};
return 0;
}
-static int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
+static int crypto_poly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- if (unlikely(!dctx->sset))
- return -ENOKEY;
-
- poly1305_final_generic(dctx, dst);
+ poly1305_update_arch(dctx, src, srclen);
return 0;
}
-static int poly1305_simd_update(struct shash_desc *desc,
- const u8 *src, unsigned int srclen)
+static int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
{
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
- poly1305_update_arch(dctx, src, srclen);
+ if (unlikely(!dctx->sset))
+ return -ENOKEY;
+
+ poly1305_final_arch(dctx, dst);
return 0;
}
static struct shash_alg alg = {
.digestsize = POLY1305_DIGEST_SIZE,
.init = crypto_poly1305_init,
- .update = poly1305_simd_update,
+ .update = crypto_poly1305_update,
.final = crypto_poly1305_final,
.descsize = sizeof(struct poly1305_desc_ctx),
.base = {
@@ -213,17 +261,19 @@ static struct shash_alg alg = {
static int __init poly1305_simd_mod_init(void)
{
- if (!boot_cpu_has(X86_FEATURE_XMM2))
- return 0;
-
- static_branch_enable(&poly1305_use_simd);
-
- if (IS_ENABLED(CONFIG_AS_AVX2) &&
- boot_cpu_has(X86_FEATURE_AVX) &&
+ if (IS_ENABLED(CONFIG_AS_AVX) && boot_cpu_has(X86_FEATURE_AVX) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
+ static_branch_enable(&poly1305_use_avx);
+ if (IS_ENABLED(CONFIG_AS_AVX2) && boot_cpu_has(X86_FEATURE_AVX) &&
boot_cpu_has(X86_FEATURE_AVX2) &&
cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
static_branch_enable(&poly1305_use_avx2);
-
+ if (IS_ENABLED(CONFIG_AS_AVX512) && boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_AVX512F) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM | XFEATURE_MASK_AVX512, NULL) &&
+ /* Skylake downclocks unacceptably much when using zmm, but later generations are fast. */
+ boot_cpu_data.x86_model != INTEL_FAM6_SKYLAKE_X)
+ static_branch_enable(&poly1305_use_avx512);
return IS_REACHABLE(CONFIG_CRYPTO_HASH) ? crypto_register_shash(&alg) : 0;
}
@@ -237,7 +287,7 @@ module_init(poly1305_simd_mod_init);
module_exit(poly1305_simd_mod_exit);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
MODULE_DESCRIPTION("Poly1305 authenticator");
MODULE_ALIAS_CRYPTO("poly1305");
MODULE_ALIAS_CRYPTO("poly1305-simd");
diff --git a/arch/x86/crypto/serpent_avx2_glue.c b/arch/x86/crypto/serpent_avx2_glue.c
index 13fd8d3d2da0..f973ace44ad3 100644
--- a/arch/x86/crypto/serpent_avx2_glue.c
+++ b/arch/x86/crypto/serpent_avx2_glue.c
@@ -19,18 +19,16 @@
#define SERPENT_AVX2_PARALLEL_BLOCKS 16
/* 16-way AVX2 parallel cipher functions */
-asmlinkage void serpent_ecb_enc_16way(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void serpent_ecb_dec_16way(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void serpent_cbc_dec_16way(void *ctx, u128 *dst, const u128 *src);
+asmlinkage void serpent_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void serpent_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void serpent_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
-asmlinkage void serpent_ctr_16way(void *ctx, u128 *dst, const u128 *src,
+asmlinkage void serpent_ctr_16way(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-asmlinkage void serpent_xts_enc_16way(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
-asmlinkage void serpent_xts_dec_16way(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void serpent_xts_enc_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+asmlinkage void serpent_xts_dec_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
static int serpent_setkey_skcipher(struct crypto_skcipher *tfm,
const u8 *key, unsigned int keylen)
@@ -44,13 +42,13 @@ static const struct common_glue_ctx serpent_enc = {
.funcs = { {
.num_blocks = 16,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_enc_16way) }
+ .fn_u = { .ecb = serpent_ecb_enc_16way }
}, {
.num_blocks = 8,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_enc_8way_avx) }
+ .fn_u = { .ecb = serpent_ecb_enc_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_encrypt) }
+ .fn_u = { .ecb = __serpent_encrypt }
} }
};
@@ -60,13 +58,13 @@ static const struct common_glue_ctx serpent_ctr = {
.funcs = { {
.num_blocks = 16,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_ctr_16way) }
+ .fn_u = { .ctr = serpent_ctr_16way }
}, {
.num_blocks = 8,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_ctr_8way_avx) }
+ .fn_u = { .ctr = serpent_ctr_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(__serpent_crypt_ctr) }
+ .fn_u = { .ctr = __serpent_crypt_ctr }
} }
};
@@ -76,13 +74,13 @@ static const struct common_glue_ctx serpent_enc_xts = {
.funcs = { {
.num_blocks = 16,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc_16way) }
+ .fn_u = { .xts = serpent_xts_enc_16way }
}, {
.num_blocks = 8,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc_8way_avx) }
+ .fn_u = { .xts = serpent_xts_enc_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc) }
+ .fn_u = { .xts = serpent_xts_enc }
} }
};
@@ -92,13 +90,13 @@ static const struct common_glue_ctx serpent_dec = {
.funcs = { {
.num_blocks = 16,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_dec_16way) }
+ .fn_u = { .ecb = serpent_ecb_dec_16way }
}, {
.num_blocks = 8,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_dec_8way_avx) }
+ .fn_u = { .ecb = serpent_ecb_dec_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_decrypt) }
+ .fn_u = { .ecb = __serpent_decrypt }
} }
};
@@ -108,13 +106,13 @@ static const struct common_glue_ctx serpent_dec_cbc = {
.funcs = { {
.num_blocks = 16,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_cbc_dec_16way) }
+ .fn_u = { .cbc = serpent_cbc_dec_16way }
}, {
.num_blocks = 8,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_cbc_dec_8way_avx) }
+ .fn_u = { .cbc = serpent_cbc_dec_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__serpent_decrypt) }
+ .fn_u = { .cbc = __serpent_decrypt }
} }
};
@@ -124,13 +122,13 @@ static const struct common_glue_ctx serpent_dec_xts = {
.funcs = { {
.num_blocks = 16,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec_16way) }
+ .fn_u = { .xts = serpent_xts_dec_16way }
}, {
.num_blocks = 8,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec_8way_avx) }
+ .fn_u = { .xts = serpent_xts_dec_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec) }
+ .fn_u = { .xts = serpent_xts_dec }
} }
};
@@ -146,8 +144,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__serpent_encrypt),
- req);
+ return glue_cbc_encrypt_req_128bit(__serpent_encrypt, req);
}
static int cbc_decrypt(struct skcipher_request *req)
@@ -166,8 +163,8 @@ static int xts_encrypt(struct skcipher_request *req)
struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_req_128bit(&serpent_enc_xts, req,
- XTS_TWEAK_CAST(__serpent_encrypt),
- &ctx->tweak_ctx, &ctx->crypt_ctx, false);
+ __serpent_encrypt, &ctx->tweak_ctx,
+ &ctx->crypt_ctx, false);
}
static int xts_decrypt(struct skcipher_request *req)
@@ -176,8 +173,8 @@ static int xts_decrypt(struct skcipher_request *req)
struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_req_128bit(&serpent_dec_xts, req,
- XTS_TWEAK_CAST(__serpent_encrypt),
- &ctx->tweak_ctx, &ctx->crypt_ctx, true);
+ __serpent_encrypt, &ctx->tweak_ctx,
+ &ctx->crypt_ctx, true);
}
static struct skcipher_alg serpent_algs[] = {
diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c
index 7d3dca38a5a2..7806d1cbe854 100644
--- a/arch/x86/crypto/serpent_avx_glue.c
+++ b/arch/x86/crypto/serpent_avx_glue.c
@@ -20,33 +20,35 @@
#include <asm/crypto/serpent-avx.h>
/* 8-way parallel cipher functions */
-asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_enc_8way_avx(const void *ctx, u8 *dst,
const u8 *src);
EXPORT_SYMBOL_GPL(serpent_ecb_enc_8way_avx);
-asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_dec_8way_avx(const void *ctx, u8 *dst,
const u8 *src);
EXPORT_SYMBOL_GPL(serpent_ecb_dec_8way_avx);
-asmlinkage void serpent_cbc_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_cbc_dec_8way_avx(const void *ctx, u8 *dst,
const u8 *src);
EXPORT_SYMBOL_GPL(serpent_cbc_dec_8way_avx);
-asmlinkage void serpent_ctr_8way_avx(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void serpent_ctr_8way_avx(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
EXPORT_SYMBOL_GPL(serpent_ctr_8way_avx);
-asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_xts_enc_8way_avx(const void *ctx, u8 *dst,
const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(serpent_xts_enc_8way_avx);
-asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_xts_dec_8way_avx(const void *ctx, u8 *dst,
const u8 *src, le128 *iv);
EXPORT_SYMBOL_GPL(serpent_xts_dec_8way_avx);
-void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void __serpent_crypt_ctr(const void *ctx, u8 *d, const u8 *s, le128 *iv)
{
be128 ctrblk;
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
le128_to_be128(&ctrblk, iv);
le128_inc(iv);
@@ -56,17 +58,15 @@ void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
}
EXPORT_SYMBOL_GPL(__serpent_crypt_ctr);
-void serpent_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void serpent_xts_enc(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(__serpent_encrypt));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, __serpent_encrypt);
}
EXPORT_SYMBOL_GPL(serpent_xts_enc);
-void serpent_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void serpent_xts_dec(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(__serpent_decrypt));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, __serpent_decrypt);
}
EXPORT_SYMBOL_GPL(serpent_xts_dec);
@@ -102,10 +102,10 @@ static const struct common_glue_ctx serpent_enc = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_enc_8way_avx) }
+ .fn_u = { .ecb = serpent_ecb_enc_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_encrypt) }
+ .fn_u = { .ecb = __serpent_encrypt }
} }
};
@@ -115,10 +115,10 @@ static const struct common_glue_ctx serpent_ctr = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_ctr_8way_avx) }
+ .fn_u = { .ctr = serpent_ctr_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(__serpent_crypt_ctr) }
+ .fn_u = { .ctr = __serpent_crypt_ctr }
} }
};
@@ -128,10 +128,10 @@ static const struct common_glue_ctx serpent_enc_xts = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc_8way_avx) }
+ .fn_u = { .xts = serpent_xts_enc_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_enc) }
+ .fn_u = { .xts = serpent_xts_enc }
} }
};
@@ -141,10 +141,10 @@ static const struct common_glue_ctx serpent_dec = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_ecb_dec_8way_avx) }
+ .fn_u = { .ecb = serpent_ecb_dec_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_decrypt) }
+ .fn_u = { .ecb = __serpent_decrypt }
} }
};
@@ -154,10 +154,10 @@ static const struct common_glue_ctx serpent_dec_cbc = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_cbc_dec_8way_avx) }
+ .fn_u = { .cbc = serpent_cbc_dec_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__serpent_decrypt) }
+ .fn_u = { .cbc = __serpent_decrypt }
} }
};
@@ -167,10 +167,10 @@ static const struct common_glue_ctx serpent_dec_xts = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec_8way_avx) }
+ .fn_u = { .xts = serpent_xts_dec_8way_avx }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(serpent_xts_dec) }
+ .fn_u = { .xts = serpent_xts_dec }
} }
};
@@ -186,8 +186,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__serpent_encrypt),
- req);
+ return glue_cbc_encrypt_req_128bit(__serpent_encrypt, req);
}
static int cbc_decrypt(struct skcipher_request *req)
@@ -206,8 +205,8 @@ static int xts_encrypt(struct skcipher_request *req)
struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_req_128bit(&serpent_enc_xts, req,
- XTS_TWEAK_CAST(__serpent_encrypt),
- &ctx->tweak_ctx, &ctx->crypt_ctx, false);
+ __serpent_encrypt, &ctx->tweak_ctx,
+ &ctx->crypt_ctx, false);
}
static int xts_decrypt(struct skcipher_request *req)
@@ -216,8 +215,8 @@ static int xts_decrypt(struct skcipher_request *req)
struct serpent_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
return glue_xts_req_128bit(&serpent_dec_xts, req,
- XTS_TWEAK_CAST(__serpent_encrypt),
- &ctx->tweak_ctx, &ctx->crypt_ctx, true);
+ __serpent_encrypt, &ctx->tweak_ctx,
+ &ctx->crypt_ctx, true);
}
static struct skcipher_alg serpent_algs[] = {
diff --git a/arch/x86/crypto/serpent_sse2_glue.c b/arch/x86/crypto/serpent_sse2_glue.c
index 5fdf1931d069..4fed8d26b91a 100644
--- a/arch/x86/crypto/serpent_sse2_glue.c
+++ b/arch/x86/crypto/serpent_sse2_glue.c
@@ -31,9 +31,11 @@ static int serpent_setkey_skcipher(struct crypto_skcipher *tfm,
return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen);
}
-static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src)
+static void serpent_decrypt_cbc_xway(const void *ctx, u8 *d, const u8 *s)
{
u128 ivs[SERPENT_PARALLEL_BLOCKS - 1];
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
unsigned int j;
for (j = 0; j < SERPENT_PARALLEL_BLOCKS - 1; j++)
@@ -45,9 +47,11 @@ static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src)
u128_xor(dst + (j + 1), dst + (j + 1), ivs + j);
}
-static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void serpent_crypt_ctr(const void *ctx, u8 *d, const u8 *s, le128 *iv)
{
be128 ctrblk;
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
le128_to_be128(&ctrblk, iv);
le128_inc(iv);
@@ -56,10 +60,12 @@ static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
u128_xor(dst, src, (u128 *)&ctrblk);
}
-static void serpent_crypt_ctr_xway(void *ctx, u128 *dst, const u128 *src,
+static void serpent_crypt_ctr_xway(const void *ctx, u8 *d, const u8 *s,
le128 *iv)
{
be128 ctrblks[SERPENT_PARALLEL_BLOCKS];
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
unsigned int i;
for (i = 0; i < SERPENT_PARALLEL_BLOCKS; i++) {
@@ -79,10 +85,10 @@ static const struct common_glue_ctx serpent_enc = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_enc_blk_xway) }
+ .fn_u = { .ecb = serpent_enc_blk_xway }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_encrypt) }
+ .fn_u = { .ecb = __serpent_encrypt }
} }
};
@@ -92,10 +98,10 @@ static const struct common_glue_ctx serpent_ctr = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_crypt_ctr_xway) }
+ .fn_u = { .ctr = serpent_crypt_ctr_xway }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(serpent_crypt_ctr) }
+ .fn_u = { .ctr = serpent_crypt_ctr }
} }
};
@@ -105,10 +111,10 @@ static const struct common_glue_ctx serpent_dec = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(serpent_dec_blk_xway) }
+ .fn_u = { .ecb = serpent_dec_blk_xway }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(__serpent_decrypt) }
+ .fn_u = { .ecb = __serpent_decrypt }
} }
};
@@ -118,10 +124,10 @@ static const struct common_glue_ctx serpent_dec_cbc = {
.funcs = { {
.num_blocks = SERPENT_PARALLEL_BLOCKS,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(serpent_decrypt_cbc_xway) }
+ .fn_u = { .cbc = serpent_decrypt_cbc_xway }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(__serpent_decrypt) }
+ .fn_u = { .cbc = __serpent_decrypt }
} }
};
@@ -137,7 +143,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(__serpent_encrypt),
+ return glue_cbc_encrypt_req_128bit(__serpent_encrypt,
req);
}
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
index 6decc85ef7b7..1e594d60afa5 100644
--- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -62,11 +62,11 @@
*Visit http://software.intel.com/en-us/articles/
*and refer to improving-the-performance-of-the-secure-hash-algorithm-1/
*
- *Updates 20-byte SHA-1 record in 'hash' for even number of
- *'num_blocks' consecutive 64-byte blocks
+ *Updates 20-byte SHA-1 record at start of 'state', from 'input', for
+ *even number of 'blocks' consecutive 64-byte blocks.
*
*extern "C" void sha1_transform_avx2(
- * int *hash, const char* input, size_t num_blocks );
+ * struct sha1_state *state, const u8* input, int blocks );
*/
#include <linux/linkage.h>
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index 5d03c1173690..12e2d19d7402 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -457,9 +457,13 @@ W_PRECALC_SSSE3
movdqu \a,\b
.endm
-/* SSSE3 optimized implementation:
- * extern "C" void sha1_transform_ssse3(u32 *digest, const char *data, u32 *ws,
- * unsigned int rounds);
+/*
+ * SSSE3 optimized implementation:
+ *
+ * extern "C" void sha1_transform_ssse3(struct sha1_state *state,
+ * const u8 *data, int blocks);
+ *
+ * Note that struct sha1_state is assumed to begin with u32 state[5].
*/
SHA1_VECTOR_ASM sha1_transform_ssse3
@@ -545,8 +549,8 @@ W_PRECALC_AVX
/* AVX optimized implementation:
- * extern "C" void sha1_transform_avx(u32 *digest, const char *data, u32 *ws,
- * unsigned int rounds);
+ * extern "C" void sha1_transform_avx(struct sha1_state *state,
+ * const u8 *data, int blocks);
*/
SHA1_VECTOR_ASM sha1_transform_avx
diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
index 639d4c2fd6a8..d70b40ad594c 100644
--- a/arch/x86/crypto/sha1_ssse3_glue.c
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -27,11 +27,8 @@
#include <crypto/sha1_base.h>
#include <asm/simd.h>
-typedef void (sha1_transform_fn)(u32 *digest, const char *data,
- unsigned int rounds);
-
static int sha1_update(struct shash_desc *desc, const u8 *data,
- unsigned int len, sha1_transform_fn *sha1_xform)
+ unsigned int len, sha1_block_fn *sha1_xform)
{
struct sha1_state *sctx = shash_desc_ctx(desc);
@@ -39,48 +36,47 @@ static int sha1_update(struct shash_desc *desc, const u8 *data,
(sctx->count % SHA1_BLOCK_SIZE) + len < SHA1_BLOCK_SIZE)
return crypto_sha1_update(desc, data, len);
- /* make sure casting to sha1_block_fn() is safe */
+ /*
+ * Make sure struct sha1_state begins directly with the SHA1
+ * 160-bit internal state, as this is what the asm functions expect.
+ */
BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
kernel_fpu_begin();
- sha1_base_do_update(desc, data, len,
- (sha1_block_fn *)sha1_xform);
+ sha1_base_do_update(desc, data, len, sha1_xform);
kernel_fpu_end();
return 0;
}
static int sha1_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out, sha1_transform_fn *sha1_xform)
+ unsigned int len, u8 *out, sha1_block_fn *sha1_xform)
{
if (!crypto_simd_usable())
return crypto_sha1_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
- sha1_base_do_update(desc, data, len,
- (sha1_block_fn *)sha1_xform);
- sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_xform);
+ sha1_base_do_update(desc, data, len, sha1_xform);
+ sha1_base_do_finalize(desc, sha1_xform);
kernel_fpu_end();
return sha1_base_finish(desc, out);
}
-asmlinkage void sha1_transform_ssse3(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_transform_ssse3(struct sha1_state *state,
+ const u8 *data, int blocks);
static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_transform_ssse3);
+ return sha1_update(desc, data, len, sha1_transform_ssse3);
}
static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_transform_ssse3);
+ return sha1_finup(desc, data, len, out, sha1_transform_ssse3);
}
/* Add padding and return the message digest. */
@@ -119,21 +115,19 @@ static void unregister_sha1_ssse3(void)
}
#ifdef CONFIG_AS_AVX
-asmlinkage void sha1_transform_avx(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_transform_avx(struct sha1_state *state,
+ const u8 *data, int blocks);
static int sha1_avx_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_transform_avx);
+ return sha1_update(desc, data, len, sha1_transform_avx);
}
static int sha1_avx_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_transform_avx);
+ return sha1_finup(desc, data, len, out, sha1_transform_avx);
}
static int sha1_avx_final(struct shash_desc *desc, u8 *out)
@@ -190,8 +184,8 @@ static inline void unregister_sha1_avx(void) { }
#if defined(CONFIG_AS_AVX2) && (CONFIG_AS_AVX)
#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */
-asmlinkage void sha1_transform_avx2(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_transform_avx2(struct sha1_state *state,
+ const u8 *data, int blocks);
static bool avx2_usable(void)
{
@@ -203,28 +197,26 @@ static bool avx2_usable(void)
return false;
}
-static void sha1_apply_transform_avx2(u32 *digest, const char *data,
- unsigned int rounds)
+static void sha1_apply_transform_avx2(struct sha1_state *state,
+ const u8 *data, int blocks)
{
/* Select the optimal transform based on data block size */
- if (rounds >= SHA1_AVX2_BLOCK_OPTSIZE)
- sha1_transform_avx2(digest, data, rounds);
+ if (blocks >= SHA1_AVX2_BLOCK_OPTSIZE)
+ sha1_transform_avx2(state, data, blocks);
else
- sha1_transform_avx(digest, data, rounds);
+ sha1_transform_avx(state, data, blocks);
}
static int sha1_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_apply_transform_avx2);
+ return sha1_update(desc, data, len, sha1_apply_transform_avx2);
}
static int sha1_avx2_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_apply_transform_avx2);
+ return sha1_finup(desc, data, len, out, sha1_apply_transform_avx2);
}
static int sha1_avx2_final(struct shash_desc *desc, u8 *out)
@@ -267,21 +259,19 @@ static inline void unregister_sha1_avx2(void) { }
#endif
#ifdef CONFIG_AS_SHA1_NI
-asmlinkage void sha1_ni_transform(u32 *digest, const char *data,
- unsigned int rounds);
+asmlinkage void sha1_ni_transform(struct sha1_state *digest, const u8 *data,
+ int rounds);
static int sha1_ni_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- return sha1_update(desc, data, len,
- (sha1_transform_fn *) sha1_ni_transform);
+ return sha1_update(desc, data, len, sha1_ni_transform);
}
static int sha1_ni_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- return sha1_finup(desc, data, len, out,
- (sha1_transform_fn *) sha1_ni_transform);
+ return sha1_finup(desc, data, len, out, sha1_ni_transform);
}
static int sha1_ni_final(struct shash_desc *desc, u8 *out)
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
index 22e14c8dd2e4..fcbc30f58c38 100644
--- a/arch/x86/crypto/sha256-avx-asm.S
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -341,8 +341,8 @@ a = TMP_
.endm
########################################################################
-## void sha256_transform_avx(void *input_data, UINT32 digest[8], UINT64 num_blks)
-## arg 1 : pointer to digest
+## void sha256_transform_avx(state sha256_state *state, const u8 *data, int blocks)
+## arg 1 : pointer to state
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
index 519b551ad576..499d9ec129de 100644
--- a/arch/x86/crypto/sha256-avx2-asm.S
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -520,8 +520,8 @@ STACK_SIZE = _RSP + _RSP_SIZE
.endm
########################################################################
-## void sha256_transform_rorx(void *input_data, UINT32 digest[8], UINT64 num_blks)
-## arg 1 : pointer to digest
+## void sha256_transform_rorx(struct sha256_state *state, const u8 *data, int blocks)
+## arg 1 : pointer to state
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
index 69cc2f91dc4c..ddfa863b4ee3 100644
--- a/arch/x86/crypto/sha256-ssse3-asm.S
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -347,8 +347,10 @@ a = TMP_
.endm
########################################################################
-## void sha256_transform_ssse3(void *input_data, UINT32 digest[8], UINT64 num_blks)
-## arg 1 : pointer to digest
+## void sha256_transform_ssse3(struct sha256_state *state, const u8 *data,
+## int blocks);
+## arg 1 : pointer to state
+## (struct sha256_state is assumed to begin with u32 state[8])
## arg 2 : pointer to input data
## arg 3 : Num blocks
########################################################################
diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
index f9aff31fe59e..03ad657c04bd 100644
--- a/arch/x86/crypto/sha256_ssse3_glue.c
+++ b/arch/x86/crypto/sha256_ssse3_glue.c
@@ -41,12 +41,11 @@
#include <linux/string.h>
#include <asm/simd.h>
-asmlinkage void sha256_transform_ssse3(u32 *digest, const char *data,
- u64 rounds);
-typedef void (sha256_transform_fn)(u32 *digest, const char *data, u64 rounds);
+asmlinkage void sha256_transform_ssse3(struct sha256_state *state,
+ const u8 *data, int blocks);
static int _sha256_update(struct shash_desc *desc, const u8 *data,
- unsigned int len, sha256_transform_fn *sha256_xform)
+ unsigned int len, sha256_block_fn *sha256_xform)
{
struct sha256_state *sctx = shash_desc_ctx(desc);
@@ -54,28 +53,29 @@ static int _sha256_update(struct shash_desc *desc, const u8 *data,
(sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE)
return crypto_sha256_update(desc, data, len);
- /* make sure casting to sha256_block_fn() is safe */
+ /*
+ * Make sure struct sha256_state begins directly with the SHA256
+ * 256-bit internal state, as this is what the asm functions expect.
+ */
BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0);
kernel_fpu_begin();
- sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_xform);
+ sha256_base_do_update(desc, data, len, sha256_xform);
kernel_fpu_end();
return 0;
}
static int sha256_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out, sha256_transform_fn *sha256_xform)
+ unsigned int len, u8 *out, sha256_block_fn *sha256_xform)
{
if (!crypto_simd_usable())
return crypto_sha256_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
- sha256_base_do_update(desc, data, len,
- (sha256_block_fn *)sha256_xform);
- sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_xform);
+ sha256_base_do_update(desc, data, len, sha256_xform);
+ sha256_base_do_finalize(desc, sha256_xform);
kernel_fpu_end();
return sha256_base_finish(desc, out);
@@ -145,8 +145,8 @@ static void unregister_sha256_ssse3(void)
}
#ifdef CONFIG_AS_AVX
-asmlinkage void sha256_transform_avx(u32 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha256_transform_avx(struct sha256_state *state,
+ const u8 *data, int blocks);
static int sha256_avx_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
@@ -227,8 +227,8 @@ static inline void unregister_sha256_avx(void) { }
#endif
#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
-asmlinkage void sha256_transform_rorx(u32 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha256_transform_rorx(struct sha256_state *state,
+ const u8 *data, int blocks);
static int sha256_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
@@ -307,8 +307,8 @@ static inline void unregister_sha256_avx2(void) { }
#endif
#ifdef CONFIG_AS_SHA256_NI
-asmlinkage void sha256_ni_transform(u32 *digest, const char *data,
- u64 rounds); /*unsigned int rounds);*/
+asmlinkage void sha256_ni_transform(struct sha256_state *digest,
+ const u8 *data, int rounds);
static int sha256_ni_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
index 3704ddd7e5d5..90ea945ba5e6 100644
--- a/arch/x86/crypto/sha512-avx-asm.S
+++ b/arch/x86/crypto/sha512-avx-asm.S
@@ -271,11 +271,12 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
.endm
########################################################################
-# void sha512_transform_avx(void* D, const void* M, u64 L)
-# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
-# The size of the message pointed to by M must be an integer multiple of SHA512
-# message blocks.
-# L is the message length in SHA512 blocks
+# void sha512_transform_avx(sha512_state *state, const u8 *data, int blocks)
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks
########################################################################
SYM_FUNC_START(sha512_transform_avx)
cmp $0, msglen
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
index 80d830e7ee09..3dd886b14e7d 100644
--- a/arch/x86/crypto/sha512-avx2-asm.S
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -563,11 +563,12 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
.endm
########################################################################
-# void sha512_transform_rorx(void* D, const void* M, uint64_t L)#
-# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
-# The size of the message pointed to by M must be an integer multiple of SHA512
-# message blocks.
-# L is the message length in SHA512 blocks
+# void sha512_transform_rorx(sha512_state *state, const u8 *data, int blocks)
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks
########################################################################
SYM_FUNC_START(sha512_transform_rorx)
# Allocate Stack Space
diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
index 838f984e95d9..7946a1bee85b 100644
--- a/arch/x86/crypto/sha512-ssse3-asm.S
+++ b/arch/x86/crypto/sha512-ssse3-asm.S
@@ -269,11 +269,14 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
.endm
########################################################################
-# void sha512_transform_ssse3(void* D, const void* M, u64 L)#
-# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
-# The size of the message pointed to by M must be an integer multiple of SHA512
-# message blocks.
-# L is the message length in SHA512 blocks.
+## void sha512_transform_ssse3(struct sha512_state *state, const u8 *data,
+## int blocks);
+# (struct sha512_state is assumed to begin with u64 state[8])
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks.
########################################################################
SYM_FUNC_START(sha512_transform_ssse3)
diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c
index 458356a3f124..1c444f41037c 100644
--- a/arch/x86/crypto/sha512_ssse3_glue.c
+++ b/arch/x86/crypto/sha512_ssse3_glue.c
@@ -39,13 +39,11 @@
#include <crypto/sha512_base.h>
#include <asm/simd.h>
-asmlinkage void sha512_transform_ssse3(u64 *digest, const char *data,
- u64 rounds);
-
-typedef void (sha512_transform_fn)(u64 *digest, const char *data, u64 rounds);
+asmlinkage void sha512_transform_ssse3(struct sha512_state *state,
+ const u8 *data, int blocks);
static int sha512_update(struct shash_desc *desc, const u8 *data,
- unsigned int len, sha512_transform_fn *sha512_xform)
+ unsigned int len, sha512_block_fn *sha512_xform)
{
struct sha512_state *sctx = shash_desc_ctx(desc);
@@ -53,28 +51,29 @@ static int sha512_update(struct shash_desc *desc, const u8 *data,
(sctx->count[0] % SHA512_BLOCK_SIZE) + len < SHA512_BLOCK_SIZE)
return crypto_sha512_update(desc, data, len);
- /* make sure casting to sha512_block_fn() is safe */
+ /*
+ * Make sure struct sha512_state begins directly with the SHA512
+ * 512-bit internal state, as this is what the asm functions expect.
+ */
BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0);
kernel_fpu_begin();
- sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_xform);
+ sha512_base_do_update(desc, data, len, sha512_xform);
kernel_fpu_end();
return 0;
}
static int sha512_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out, sha512_transform_fn *sha512_xform)
+ unsigned int len, u8 *out, sha512_block_fn *sha512_xform)
{
if (!crypto_simd_usable())
return crypto_sha512_finup(desc, data, len, out);
kernel_fpu_begin();
if (len)
- sha512_base_do_update(desc, data, len,
- (sha512_block_fn *)sha512_xform);
- sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_xform);
+ sha512_base_do_update(desc, data, len, sha512_xform);
+ sha512_base_do_finalize(desc, sha512_xform);
kernel_fpu_end();
return sha512_base_finish(desc, out);
@@ -144,8 +143,8 @@ static void unregister_sha512_ssse3(void)
}
#ifdef CONFIG_AS_AVX
-asmlinkage void sha512_transform_avx(u64 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha512_transform_avx(struct sha512_state *state,
+ const u8 *data, int blocks);
static bool avx_usable(void)
{
if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
@@ -225,8 +224,8 @@ static inline void unregister_sha512_avx(void) { }
#endif
#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX)
-asmlinkage void sha512_transform_rorx(u64 *digest, const char *data,
- u64 rounds);
+asmlinkage void sha512_transform_rorx(struct sha512_state *state,
+ const u8 *data, int blocks);
static int sha512_avx2_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
diff --git a/arch/x86/crypto/twofish_avx_glue.c b/arch/x86/crypto/twofish_avx_glue.c
index d561c821788b..2dbc8ce3730e 100644
--- a/arch/x86/crypto/twofish_avx_glue.c
+++ b/arch/x86/crypto/twofish_avx_glue.c
@@ -22,20 +22,17 @@
#define TWOFISH_PARALLEL_BLOCKS 8
/* 8-way parallel cipher functions */
-asmlinkage void twofish_ecb_enc_8way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void twofish_ecb_dec_8way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void twofish_ecb_enc_8way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void twofish_ecb_dec_8way(const void *ctx, u8 *dst, const u8 *src);
-asmlinkage void twofish_cbc_dec_8way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void twofish_ctr_8way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void twofish_cbc_dec_8way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void twofish_ctr_8way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
-asmlinkage void twofish_xts_enc_8way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
-asmlinkage void twofish_xts_dec_8way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void twofish_xts_enc_8way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+asmlinkage void twofish_xts_dec_8way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
static int twofish_setkey_skcipher(struct crypto_skcipher *tfm,
const u8 *key, unsigned int keylen)
@@ -43,22 +40,19 @@ static int twofish_setkey_skcipher(struct crypto_skcipher *tfm,
return twofish_setkey(&tfm->base, key, keylen);
}
-static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void twofish_enc_blk_3way(const void *ctx, u8 *dst, const u8 *src)
{
__twofish_enc_blk_3way(ctx, dst, src, false);
}
-static void twofish_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void twofish_xts_enc(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(twofish_enc_blk));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, twofish_enc_blk);
}
-static void twofish_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+static void twofish_xts_dec(const void *ctx, u8 *dst, const u8 *src, le128 *iv)
{
- glue_xts_crypt_128bit_one(ctx, dst, src, iv,
- GLUE_FUNC_CAST(twofish_dec_blk));
+ glue_xts_crypt_128bit_one(ctx, dst, src, iv, twofish_dec_blk);
}
struct twofish_xts_ctx {
@@ -70,7 +64,6 @@ static int xts_twofish_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct twofish_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- u32 *flags = &tfm->base.crt_flags;
int err;
err = xts_verify_key(tfm, key, keylen);
@@ -78,13 +71,12 @@ static int xts_twofish_setkey(struct crypto_skcipher *tfm, const u8 *key,
return err;
/* first half of xts-key is for crypt */
- err = __twofish_setkey(&ctx->crypt_ctx, key, keylen / 2, flags);
+ err = __twofish_setkey(&ctx->crypt_ctx, key, keylen / 2);
if (err)
return err;
/* second half of xts-key is for tweak */
- return __twofish_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2,
- flags);
+ return __twofish_setkey(&ctx->tweak_ctx, key + keylen / 2, keylen / 2);
}
static const struct common_glue_ctx twofish_enc = {
@@ -93,13 +85,13 @@ static const struct common_glue_ctx twofish_enc = {
.funcs = { {
.num_blocks = TWOFISH_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_enc_8way) }
+ .fn_u = { .ecb = twofish_ecb_enc_8way }
}, {
.num_blocks = 3,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_3way) }
+ .fn_u = { .ecb = twofish_enc_blk_3way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk) }
+ .fn_u = { .ecb = twofish_enc_blk }
} }
};
@@ -109,13 +101,13 @@ static const struct common_glue_ctx twofish_ctr = {
.funcs = { {
.num_blocks = TWOFISH_PARALLEL_BLOCKS,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_ctr_8way) }
+ .fn_u = { .ctr = twofish_ctr_8way }
}, {
.num_blocks = 3,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr_3way) }
+ .fn_u = { .ctr = twofish_enc_blk_ctr_3way }
}, {
.num_blocks = 1,
- .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(twofish_enc_blk_ctr) }
+ .fn_u = { .ctr = twofish_enc_blk_ctr }
} }
};
@@ -125,10 +117,10 @@ static const struct common_glue_ctx twofish_enc_xts = {
.funcs = { {
.num_blocks = TWOFISH_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_enc_8way) }
+ .fn_u = { .xts = twofish_xts_enc_8way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_enc) }
+ .fn_u = { .xts = twofish_xts_enc }
} }
};
@@ -138,13 +130,13 @@ static const struct common_glue_ctx twofish_dec = {
.funcs = { {
.num_blocks = TWOFISH_PARALLEL_BLOCKS,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_ecb_dec_8way) }
+ .fn_u = { .ecb = twofish_ecb_dec_8way }
}, {
.num_blocks = 3,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk_3way) }
+ .fn_u = { .ecb = twofish_dec_blk_3way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk) }
+ .fn_u = { .ecb = twofish_dec_blk }
} }
};
@@ -154,13 +146,13 @@ static const struct common_glue_ctx twofish_dec_cbc = {
.funcs = { {
.num_blocks = TWOFISH_PARALLEL_BLOCKS,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_cbc_dec_8way) }
+ .fn_u = { .cbc = twofish_cbc_dec_8way }
}, {
.num_blocks = 3,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk_cbc_3way) }
+ .fn_u = { .cbc = twofish_dec_blk_cbc_3way }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk) }
+ .fn_u = { .cbc = twofish_dec_blk }
} }
};
@@ -170,10 +162,10 @@ static const struct common_glue_ctx twofish_dec_xts = {
.funcs = { {
.num_blocks = TWOFISH_PARALLEL_BLOCKS,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_dec_8way) }
+ .fn_u = { .xts = twofish_xts_dec_8way }
}, {
.num_blocks = 1,
- .fn_u = { .xts = GLUE_XTS_FUNC_CAST(twofish_xts_dec) }
+ .fn_u = { .xts = twofish_xts_dec }
} }
};
@@ -189,8 +181,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(twofish_enc_blk),
- req);
+ return glue_cbc_encrypt_req_128bit(twofish_enc_blk, req);
}
static int cbc_decrypt(struct skcipher_request *req)
@@ -208,8 +199,7 @@ static int xts_encrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct twofish_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&twofish_enc_xts, req,
- XTS_TWEAK_CAST(twofish_enc_blk),
+ return glue_xts_req_128bit(&twofish_enc_xts, req, twofish_enc_blk,
&ctx->tweak_ctx, &ctx->crypt_ctx, false);
}
@@ -218,8 +208,7 @@ static int xts_decrypt(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct twofish_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
- return glue_xts_req_128bit(&twofish_dec_xts, req,
- XTS_TWEAK_CAST(twofish_enc_blk),
+ return glue_xts_req_128bit(&twofish_dec_xts, req, twofish_enc_blk,
&ctx->tweak_ctx, &ctx->crypt_ctx, true);
}
diff --git a/arch/x86/crypto/twofish_glue_3way.c b/arch/x86/crypto/twofish_glue_3way.c
index 1dc9e29f221e..768af6075479 100644
--- a/arch/x86/crypto/twofish_glue_3way.c
+++ b/arch/x86/crypto/twofish_glue_3way.c
@@ -25,21 +25,22 @@ static int twofish_setkey_skcipher(struct crypto_skcipher *tfm,
return twofish_setkey(&tfm->base, key, keylen);
}
-static inline void twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void twofish_enc_blk_3way(const void *ctx, u8 *dst, const u8 *src)
{
__twofish_enc_blk_3way(ctx, dst, src, false);
}
-static inline void twofish_enc_blk_xor_3way(struct twofish_ctx *ctx, u8 *dst,
+static inline void twofish_enc_blk_xor_3way(const void *ctx, u8 *dst,
const u8 *src)
{
__twofish_enc_blk_3way(ctx, dst, src, true);
}
-void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src)
+void twofish_dec_blk_cbc_3way(const void *ctx, u8 *d, const u8 *s)
{
u128 ivs[2];
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
ivs[0] = src[0];
ivs[1] = src[1];
@@ -51,9 +52,11 @@ void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src)
}
EXPORT_SYMBOL_GPL(twofish_dec_blk_cbc_3way);
-void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
+void twofish_enc_blk_ctr(const void *ctx, u8 *d, const u8 *s, le128 *iv)
{
be128 ctrblk;
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
if (dst != src)
*dst = *src;
@@ -66,10 +69,11 @@ void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
}
EXPORT_SYMBOL_GPL(twofish_enc_blk_ctr);
-void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src,
- le128 *iv)
+void twofish_enc_blk_ctr_3way(const void *ctx, u8 *d, const u8 *s, le128 *iv)
{
be128 ctrblks[3];
+ u128 *dst = (u128 *)d;
+ const u128 *src = (const u128 *)s;
if (dst != src) {
dst[0] = src[0];
@@ -94,10 +98,10 @@ static const struct common_glue_ctx twofish_enc = {
.funcs = { {
.num_blocks = 3,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_3way) }
+ .fn_u = { .ecb = twofish_enc_blk_3way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk) }
+ .fn_u = { .ecb = twofish_enc_blk }
} }
};
@@ -107,10 +111,10 @@ static const struct common_glue_ctx twofish_ctr = {
.funcs = { {
.num_blocks = 3,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_ctr_3way) }
+ .fn_u = { .ctr = twofish_enc_blk_ctr_3way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_enc_blk_ctr) }
+ .fn_u = { .ctr = twofish_enc_blk_ctr }
} }
};
@@ -120,10 +124,10 @@ static const struct common_glue_ctx twofish_dec = {
.funcs = { {
.num_blocks = 3,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk_3way) }
+ .fn_u = { .ecb = twofish_dec_blk_3way }
}, {
.num_blocks = 1,
- .fn_u = { .ecb = GLUE_FUNC_CAST(twofish_dec_blk) }
+ .fn_u = { .ecb = twofish_dec_blk }
} }
};
@@ -133,10 +137,10 @@ static const struct common_glue_ctx twofish_dec_cbc = {
.funcs = { {
.num_blocks = 3,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk_cbc_3way) }
+ .fn_u = { .cbc = twofish_dec_blk_cbc_3way }
}, {
.num_blocks = 1,
- .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(twofish_dec_blk) }
+ .fn_u = { .cbc = twofish_dec_blk }
} }
};
@@ -152,8 +156,7 @@ static int ecb_decrypt(struct skcipher_request *req)
static int cbc_encrypt(struct skcipher_request *req)
{
- return glue_cbc_encrypt_req_128bit(GLUE_FUNC_CAST(twofish_enc_blk),
- req);
+ return glue_cbc_encrypt_req_128bit(twofish_enc_blk, req);
}
static int cbc_decrypt(struct skcipher_request *req)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 76942cbd95a1..f2bb91e87877 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1728,7 +1728,7 @@ SYM_CODE_END(nmi)
SYM_CODE_START(ignore_sysret)
UNWIND_HINT_EMPTY
mov $-ENOSYS, %eax
- sysret
+ sysretl
SYM_CODE_END(ignore_sysret)
#endif
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 15908eb9b17e..c17cb77eb150 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -440,3 +440,5 @@
433 i386 fspick sys_fspick __ia32_sys_fspick
434 i386 pidfd_open sys_pidfd_open __ia32_sys_pidfd_open
435 i386 clone3 sys_clone3 __ia32_sys_clone3
+437 i386 openat2 sys_openat2 __ia32_sys_openat2
+438 i386 pidfd_getfd sys_pidfd_getfd __ia32_sys_pidfd_getfd
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index c29976eca4a8..44d510bc9b78 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -357,6 +357,8 @@
433 common fspick __x64_sys_fspick
434 common pidfd_open __x64_sys_pidfd_open
435 common clone3 __x64_sys_clone3/ptregs
+437 common openat2 __x64_sys_openat2
+438 common pidfd_getfd __x64_sys_pidfd_getfd
#
# x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/arch/x86/entry/vdso/vdso-layout.lds.S b/arch/x86/entry/vdso/vdso-layout.lds.S
index 93c6dc7812d0..ea7e0155c604 100644
--- a/arch/x86/entry/vdso/vdso-layout.lds.S
+++ b/arch/x86/entry/vdso/vdso-layout.lds.S
@@ -16,18 +16,23 @@ SECTIONS
* segment.
*/
- vvar_start = . - 3 * PAGE_SIZE;
- vvar_page = vvar_start;
+ vvar_start = . - 4 * PAGE_SIZE;
+ vvar_page = vvar_start;
/* Place all vvars at the offsets in asm/vvar.h. */
#define EMIT_VVAR(name, offset) vvar_ ## name = vvar_page + offset;
-#define __VVAR_KERNEL_LDS
#include <asm/vvar.h>
-#undef __VVAR_KERNEL_LDS
#undef EMIT_VVAR
pvclock_page = vvar_start + PAGE_SIZE;
hvclock_page = vvar_start + 2 * PAGE_SIZE;
+ timens_page = vvar_start + 3 * PAGE_SIZE;
+
+#undef _ASM_X86_VVAR_H
+ /* Place all vvars in timens too at the offsets in asm/vvar.h. */
+#define EMIT_VVAR(name, offset) timens_ ## name = timens_page + offset;
+#include <asm/vvar.h>
+#undef EMIT_VVAR
. = SIZEOF_HEADERS;
diff --git a/arch/x86/entry/vdso/vdso2c.c b/arch/x86/entry/vdso/vdso2c.c
index 3a4d8d4d39f8..3842873b3ae3 100644
--- a/arch/x86/entry/vdso/vdso2c.c
+++ b/arch/x86/entry/vdso/vdso2c.c
@@ -75,12 +75,14 @@ enum {
sym_vvar_page,
sym_pvclock_page,
sym_hvclock_page,
+ sym_timens_page,
};
const int special_pages[] = {
sym_vvar_page,
sym_pvclock_page,
sym_hvclock_page,
+ sym_timens_page,
};
struct vdso_sym {
@@ -93,6 +95,7 @@ struct vdso_sym required_syms[] = {
[sym_vvar_page] = {"vvar_page", true},
[sym_pvclock_page] = {"pvclock_page", true},
[sym_hvclock_page] = {"hvclock_page", true},
+ [sym_timens_page] = {"timens_page", true},
{"VDSO32_NOTE_MASK", true},
{"__kernel_vsyscall", true},
{"__kernel_sigreturn", true},
diff --git a/arch/x86/entry/vdso/vdso32-setup.c b/arch/x86/entry/vdso/vdso32-setup.c
index 240626e7f55a..43842fade8fa 100644
--- a/arch/x86/entry/vdso/vdso32-setup.c
+++ b/arch/x86/entry/vdso/vdso32-setup.c
@@ -11,6 +11,7 @@
#include <linux/smp.h>
#include <linux/kernel.h>
#include <linux/mm_types.h>
+#include <linux/elf.h>
#include <asm/processor.h>
#include <asm/vdso.h>
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index f5937742b290..c1b8496b5606 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -14,16 +14,30 @@
#include <linux/elf.h>
#include <linux/cpu.h>
#include <linux/ptrace.h>
+#include <linux/time_namespace.h>
+
#include <asm/pvclock.h>
#include <asm/vgtod.h>
#include <asm/proto.h>
#include <asm/vdso.h>
#include <asm/vvar.h>
+#include <asm/tlb.h>
#include <asm/page.h>
#include <asm/desc.h>
#include <asm/cpufeature.h>
#include <clocksource/hyperv_timer.h>
+#undef _ASM_X86_VVAR_H
+#define EMIT_VVAR(name, offset) \
+ const size_t name ## _offset = offset;
+#include <asm/vvar.h>
+
+struct vdso_data *arch_get_vdso_data(void *vvar_page)
+{
+ return (struct vdso_data *)(vvar_page + _vdso_data_offset);
+}
+#undef EMIT_VVAR
+
#if defined(CONFIG_X86_64)
unsigned int __read_mostly vdso64_enabled = 1;
#endif
@@ -37,6 +51,7 @@ void __init init_vdso_image(const struct vdso_image *image)
image->alt_len));
}
+static const struct vm_special_mapping vvar_mapping;
struct linux_binprm;
static vm_fault_t vdso_fault(const struct vm_special_mapping *sm,
@@ -84,10 +99,74 @@ static int vdso_mremap(const struct vm_special_mapping *sm,
return 0;
}
+static int vvar_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
+{
+ const struct vdso_image *image = new_vma->vm_mm->context.vdso_image;
+ unsigned long new_size = new_vma->vm_end - new_vma->vm_start;
+
+ if (new_size != -image->sym_vvar_start)
+ return -EINVAL;
+
+ return 0;
+}
+
+#ifdef CONFIG_TIME_NS
+static struct page *find_timens_vvar_page(struct vm_area_struct *vma)
+{
+ if (likely(vma->vm_mm == current->mm))
+ return current->nsproxy->time_ns->vvar_page;
+
+ /*
+ * VM_PFNMAP | VM_IO protect .fault() handler from being called
+ * through interfaces like /proc/$pid/mem or
+ * process_vm_{readv,writev}() as long as there's no .access()
+ * in special_mapping_vmops().
+ * For more details check_vma_flags() and __access_remote_vm()
+ */
+
+ WARN(1, "vvar_page accessed remotely");
+
+ return NULL;
+}
+
+/*
+ * The vvar page layout depends on whether a task belongs to the root or
+ * non-root time namespace. Whenever a task changes its namespace, the VVAR
+ * page tables are cleared and then they will re-faulted with a
+ * corresponding layout.
+ * See also the comment near timens_setup_vdso_data() for details.
+ */
+int vdso_join_timens(struct task_struct *task, struct time_namespace *ns)
+{
+ struct mm_struct *mm = task->mm;
+ struct vm_area_struct *vma;
+
+ if (down_write_killable(&mm->mmap_sem))
+ return -EINTR;
+
+ for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ unsigned long size = vma->vm_end - vma->vm_start;
+
+ if (vma_is_special_mapping(vma, &vvar_mapping))
+ zap_page_range(vma, vma->vm_start, size);
+ }
+
+ up_write(&mm->mmap_sem);
+ return 0;
+}
+#else
+static inline struct page *find_timens_vvar_page(struct vm_area_struct *vma)
+{
+ return NULL;
+}
+#endif
+
static vm_fault_t vvar_fault(const struct vm_special_mapping *sm,
struct vm_area_struct *vma, struct vm_fault *vmf)
{
const struct vdso_image *image = vma->vm_mm->context.vdso_image;
+ unsigned long pfn;
long sym_offset;
if (!image)
@@ -107,8 +186,36 @@ static vm_fault_t vvar_fault(const struct vm_special_mapping *sm,
return VM_FAULT_SIGBUS;
if (sym_offset == image->sym_vvar_page) {
- return vmf_insert_pfn(vma, vmf->address,
- __pa_symbol(&__vvar_page) >> PAGE_SHIFT);
+ struct page *timens_page = find_timens_vvar_page(vma);
+
+ pfn = __pa_symbol(&__vvar_page) >> PAGE_SHIFT;
+
+ /*
+ * If a task belongs to a time namespace then a namespace
+ * specific VVAR is mapped with the sym_vvar_page offset and
+ * the real VVAR page is mapped with the sym_timens_page
+ * offset.
+ * See also the comment near timens_setup_vdso_data().
+ */
+ if (timens_page) {
+ unsigned long addr;
+ vm_fault_t err;
+
+ /*
+ * Optimization: inside time namespace pre-fault
+ * VVAR page too. As on timens page there are only
+ * offsets for clocks on VVAR, it'll be faulted
+ * shortly by VDSO code.
+ */
+ addr = vmf->address + (image->sym_timens_page - sym_offset);
+ err = vmf_insert_pfn(vma, addr, pfn);
+ if (unlikely(err & VM_FAULT_ERROR))
+ return err;
+
+ pfn = page_to_pfn(timens_page);
+ }
+
+ return vmf_insert_pfn(vma, vmf->address, pfn);
} else if (sym_offset == image->sym_pvclock_page) {
struct pvclock_vsyscall_time_info *pvti =
pvclock_get_pvti_cpu0_va();
@@ -123,6 +230,14 @@ static vm_fault_t vvar_fault(const struct vm_special_mapping *sm,
if (tsc_pg && vclock_was_used(VCLOCK_HVCLOCK))
return vmf_insert_pfn(vma, vmf->address,
virt_to_phys(tsc_pg) >> PAGE_SHIFT);
+ } else if (sym_offset == image->sym_timens_page) {
+ struct page *timens_page = find_timens_vvar_page(vma);
+
+ if (!timens_page)
+ return VM_FAULT_SIGBUS;
+
+ pfn = __pa_symbol(&__vvar_page) >> PAGE_SHIFT;
+ return vmf_insert_pfn(vma, vmf->address, pfn);
}
return VM_FAULT_SIGBUS;
@@ -136,6 +251,7 @@ static const struct vm_special_mapping vdso_mapping = {
static const struct vm_special_mapping vvar_mapping = {
.name = "[vvar]",
.fault = vvar_fault,
+ .mremap = vvar_mremap,
};
/*
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index a7752cd78b89..1f22b6bbda68 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -14,6 +14,10 @@
static DEFINE_PER_CPU(unsigned long, perf_nmi_tstamp);
static unsigned long perf_nmi_window;
+/* AMD Event 0xFFF: Merge. Used with Large Increment per Cycle events */
+#define AMD_MERGE_EVENT ((0xFULL << 32) | 0xFFULL)
+#define AMD_MERGE_EVENT_ENABLE (AMD_MERGE_EVENT | ARCH_PERFMON_EVENTSEL_ENABLE)
+
static __initconst const u64 amd_hw_cache_event_ids
[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_OP_MAX]
@@ -301,6 +305,25 @@ static inline int amd_pmu_addr_offset(int index, bool eventsel)
return offset;
}
+/*
+ * AMD64 events are detected based on their event codes.
+ */
+static inline unsigned int amd_get_event_code(struct hw_perf_event *hwc)
+{
+ return ((hwc->config >> 24) & 0x0f00) | (hwc->config & 0x00ff);
+}
+
+static inline bool amd_is_pair_event_code(struct hw_perf_event *hwc)
+{
+ if (!(x86_pmu.flags & PMU_FL_PAIR))
+ return false;
+
+ switch (amd_get_event_code(hwc)) {
+ case 0x003: return true; /* Retired SSE/AVX FLOPs */
+ default: return false;
+ }
+}
+
static int amd_core_hw_config(struct perf_event *event)
{
if (event->attr.exclude_host && event->attr.exclude_guest)
@@ -316,15 +339,10 @@ static int amd_core_hw_config(struct perf_event *event)
else if (event->attr.exclude_guest)
event->hw.config |= AMD64_EVENTSEL_HOSTONLY;
- return 0;
-}
+ if ((x86_pmu.flags & PMU_FL_PAIR) && amd_is_pair_event_code(&event->hw))
+ event->hw.flags |= PERF_X86_EVENT_PAIR;
-/*
- * AMD64 events are detected based on their event codes.
- */
-static inline unsigned int amd_get_event_code(struct hw_perf_event *hwc)
-{
- return ((hwc->config >> 24) & 0x0f00) | (hwc->config & 0x00ff);
+ return 0;
}
static inline int amd_is_nb_event(struct hw_perf_event *hwc)
@@ -855,6 +873,29 @@ amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, int idx,
}
}
+static struct event_constraint pair_constraint;
+
+static struct event_constraint *
+amd_get_event_constraints_f17h(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (amd_is_pair_event_code(hwc))
+ return &pair_constraint;
+
+ return &unconstrained;
+}
+
+static void amd_put_event_constraints_f17h(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (is_counter_pair(hwc))
+ --cpuc->n_pair;
+}
+
static ssize_t amd_event_sysfs_show(char *page, u64 config)
{
u64 event = (config & ARCH_PERFMON_EVENTSEL_EVENT) |
@@ -898,33 +939,15 @@ static __initconst const struct x86_pmu amd_pmu = {
static int __init amd_core_pmu_init(void)
{
+ u64 even_ctr_mask = 0ULL;
+ int i;
+
if (!boot_cpu_has(X86_FEATURE_PERFCTR_CORE))
return 0;
- /* Avoid calulating the value each time in the NMI handler */
+ /* Avoid calculating the value each time in the NMI handler */
perf_nmi_window = msecs_to_jiffies(100);
- switch (boot_cpu_data.x86) {
- case 0x15:
- pr_cont("Fam15h ");
- x86_pmu.get_event_constraints = amd_get_event_constraints_f15h;
- break;
- case 0x17:
- pr_cont("Fam17h ");
- /*
- * In family 17h, there are no event constraints in the PMC hardware.
- * We fallback to using default amd_get_event_constraints.
- */
- break;
- case 0x18:
- pr_cont("Fam18h ");
- /* Using default amd_get_event_constraints. */
- break;
- default:
- pr_err("core perfctr but no constraints; unknown hardware!\n");
- return -ENODEV;
- }
-
/*
* If core performance counter extensions exists, we must use
* MSR_F15H_PERF_CTL/MSR_F15H_PERF_CTR msrs. See also
@@ -939,6 +962,32 @@ static int __init amd_core_pmu_init(void)
*/
x86_pmu.amd_nb_constraints = 0;
+ if (boot_cpu_data.x86 == 0x15) {
+ pr_cont("Fam15h ");
+ x86_pmu.get_event_constraints = amd_get_event_constraints_f15h;
+ }
+ if (boot_cpu_data.x86 >= 0x17) {
+ pr_cont("Fam17h+ ");
+ /*
+ * Family 17h and compatibles have constraints for Large
+ * Increment per Cycle events: they may only be assigned an
+ * even numbered counter that has a consecutive adjacent odd
+ * numbered counter following it.
+ */
+ for (i = 0; i < x86_pmu.num_counters - 1; i += 2)
+ even_ctr_mask |= 1 << i;
+
+ pair_constraint = (struct event_constraint)
+ __EVENT_CONSTRAINT(0, even_ctr_mask, 0,
+ x86_pmu.num_counters / 2, 0,
+ PERF_X86_EVENT_PAIR);
+
+ x86_pmu.get_event_constraints = amd_get_event_constraints_f17h;
+ x86_pmu.put_event_constraints = amd_put_event_constraints_f17h;
+ x86_pmu.perf_ctr_pair_en = AMD_MERGE_EVENT_ENABLE;
+ x86_pmu.flags |= PMU_FL_PAIR;
+ }
+
pr_cont("core perfctr, ");
return 0;
}
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 9a89d98c55bd..3bb738f5a472 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -376,7 +376,7 @@ int x86_add_exclusive(unsigned int what)
* LBR and BTS are still mutually exclusive.
*/
if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
- return 0;
+ goto out;
if (!atomic_inc_not_zero(&x86_pmu.lbr_exclusive[what])) {
mutex_lock(&pmc_reserve_mutex);
@@ -388,6 +388,7 @@ int x86_add_exclusive(unsigned int what)
mutex_unlock(&pmc_reserve_mutex);
}
+out:
atomic_inc(&active_events);
return 0;
@@ -398,11 +399,15 @@ fail_unlock:
void x86_del_exclusive(unsigned int what)
{
+ atomic_dec(&active_events);
+
+ /*
+ * See the comment in x86_add_exclusive().
+ */
if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
return;
atomic_dec(&x86_pmu.lbr_exclusive[what]);
- atomic_dec(&active_events);
}
int x86_setup_perfctr(struct perf_event *event)
@@ -613,6 +618,7 @@ void x86_pmu_disable_all(void)
int idx;
for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ struct hw_perf_event *hwc = &cpuc->events[idx]->hw;
u64 val;
if (!test_bit(idx, cpuc->active_mask))
@@ -622,6 +628,8 @@ void x86_pmu_disable_all(void)
continue;
val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
wrmsrl(x86_pmu_config_addr(idx), val);
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_config_addr(idx + 1), 0);
}
}
@@ -694,7 +702,7 @@ struct sched_state {
int counter; /* counter index */
int unassigned; /* number of events to be assigned left */
int nr_gp; /* number of GP counters used */
- unsigned long used[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+ u64 used;
};
/* Total max is X86_PMC_IDX_MAX, but we are O(n!) limited */
@@ -751,8 +759,12 @@ static bool perf_sched_restore_state(struct perf_sched *sched)
sched->saved_states--;
sched->state = sched->saved[sched->saved_states];
- /* continue with next counter: */
- clear_bit(sched->state.counter++, sched->state.used);
+ /* this assignment didn't work out */
+ /* XXX broken vs EVENT_PAIR */
+ sched->state.used &= ~BIT_ULL(sched->state.counter);
+
+ /* try the next one */
+ sched->state.counter++;
return true;
}
@@ -777,20 +789,32 @@ static bool __perf_sched_find_counter(struct perf_sched *sched)
if (c->idxmsk64 & (~0ULL << INTEL_PMC_IDX_FIXED)) {
idx = INTEL_PMC_IDX_FIXED;
for_each_set_bit_from(idx, c->idxmsk, X86_PMC_IDX_MAX) {
- if (!__test_and_set_bit(idx, sched->state.used))
- goto done;
+ u64 mask = BIT_ULL(idx);
+
+ if (sched->state.used & mask)
+ continue;
+
+ sched->state.used |= mask;
+ goto done;
}
}
/* Grab the first unused counter starting with idx */
idx = sched->state.counter;
for_each_set_bit_from(idx, c->idxmsk, INTEL_PMC_IDX_FIXED) {
- if (!__test_and_set_bit(idx, sched->state.used)) {
- if (sched->state.nr_gp++ >= sched->max_gp)
- return false;
+ u64 mask = BIT_ULL(idx);
- goto done;
- }
+ if (c->flags & PERF_X86_EVENT_PAIR)
+ mask |= mask << 1;
+
+ if (sched->state.used & mask)
+ continue;
+
+ if (sched->state.nr_gp++ >= sched->max_gp)
+ return false;
+
+ sched->state.used |= mask;
+ goto done;
}
return false;
@@ -867,12 +891,10 @@ EXPORT_SYMBOL_GPL(perf_assign_events);
int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
{
struct event_constraint *c;
- unsigned long used_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
struct perf_event *e;
int n0, i, wmin, wmax, unsched = 0;
struct hw_perf_event *hwc;
-
- bitmap_zero(used_mask, X86_PMC_IDX_MAX);
+ u64 used_mask = 0;
/*
* Compute the number of events already present; see x86_pmu_add(),
@@ -915,6 +937,8 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
* fastpath, try to reuse previous register
*/
for (i = 0; i < n; i++) {
+ u64 mask;
+
hwc = &cpuc->event_list[i]->hw;
c = cpuc->event_constraint[i];
@@ -926,11 +950,16 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
if (!test_bit(hwc->idx, c->idxmsk))
break;
+ mask = BIT_ULL(hwc->idx);
+ if (is_counter_pair(hwc))
+ mask |= mask << 1;
+
/* not already used */
- if (test_bit(hwc->idx, used_mask))
+ if (used_mask & mask)
break;
- __set_bit(hwc->idx, used_mask);
+ used_mask |= mask;
+
if (assign)
assign[i] = hwc->idx;
}
@@ -953,6 +982,15 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
READ_ONCE(cpuc->excl_cntrs->exclusive_present))
gpmax /= 2;
+ /*
+ * Reduce the amount of available counters to allow fitting
+ * the extra Merge events needed by large increment events.
+ */
+ if (x86_pmu.flags & PMU_FL_PAIR) {
+ gpmax = x86_pmu.num_counters - cpuc->n_pair;
+ WARN_ON(gpmax <= 0);
+ }
+
unsched = perf_assign_events(cpuc->event_constraint, n, wmin,
wmax, gpmax, assign);
}
@@ -1033,6 +1071,8 @@ static int collect_events(struct cpu_hw_events *cpuc, struct perf_event *leader,
return -EINVAL;
cpuc->event_list[n] = leader;
n++;
+ if (is_counter_pair(&leader->hw))
+ cpuc->n_pair++;
}
if (!dogrp)
return n;
@@ -1047,6 +1087,8 @@ static int collect_events(struct cpu_hw_events *cpuc, struct perf_event *leader,
cpuc->event_list[n] = event;
n++;
+ if (is_counter_pair(&event->hw))
+ cpuc->n_pair++;
}
return n;
}
@@ -1233,6 +1275,13 @@ int x86_perf_event_set_period(struct perf_event *event)
wrmsrl(hwc->event_base, (u64)(-left) & x86_pmu.cntval_mask);
/*
+ * Clear the Merge event counter's upper 16 bits since
+ * we currently declare a 48-bit counter width
+ */
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_event_addr(idx + 1), 0);
+
+ /*
* Due to erratum on certan cpu we need
* a second write to be sure the register
* is updated properly
@@ -1642,9 +1691,12 @@ static struct attribute_group x86_pmu_format_group __ro_after_init = {
ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page)
{
- struct perf_pmu_events_attr *pmu_attr = \
+ struct perf_pmu_events_attr *pmu_attr =
container_of(attr, struct perf_pmu_events_attr, attr);
- u64 config = x86_pmu.event_map(pmu_attr->id);
+ u64 config = 0;
+
+ if (pmu_attr->id < x86_pmu.max_events)
+ config = x86_pmu.event_map(pmu_attr->id);
/* string trumps id */
if (pmu_attr->event_str)
@@ -1713,6 +1765,9 @@ is_visible(struct kobject *kobj, struct attribute *attr, int idx)
{
struct perf_pmu_events_attr *pmu_attr;
+ if (idx >= x86_pmu.max_events)
+ return 0;
+
pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr.attr);
/* str trumps id */
return pmu_attr->event_str || x86_pmu.event_map(idx) ? attr->mode : 0;
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index 38de4a7f6752..6a3b599ee0fe 100644
--- a/arch/x86/events/intel/bts.c
+++ b/arch/x86/events/intel/bts.c
@@ -63,9 +63,17 @@ struct bts_buffer {
static struct pmu bts_pmu;
+static int buf_nr_pages(struct page *page)
+{
+ if (!PagePrivate(page))
+ return 1;
+
+ return 1 << page_private(page);
+}
+
static size_t buf_size(struct page *page)
{
- return 1 << (PAGE_SHIFT + page_private(page));
+ return buf_nr_pages(page) * PAGE_SIZE;
}
static void *
@@ -83,9 +91,7 @@ bts_buffer_setup_aux(struct perf_event *event, void **pages,
/* count all the high order buffers */
for (pg = 0, nbuf = 0; pg < nr_pages;) {
page = virt_to_page(pages[pg]);
- if (WARN_ON_ONCE(!PagePrivate(page) && nr_pages > 1))
- return NULL;
- pg += 1 << page_private(page);
+ pg += buf_nr_pages(page);
nbuf++;
}
@@ -109,7 +115,7 @@ bts_buffer_setup_aux(struct perf_event *event, void **pages,
unsigned int __nr_pages;
page = virt_to_page(pages[pg]);
- __nr_pages = PagePrivate(page) ? 1 << page_private(page) : 1;
+ __nr_pages = buf_nr_pages(page);
buf->buf[nbuf].page = page;
buf->buf[nbuf].offset = offset;
buf->buf[nbuf].displacement = (pad ? BTS_RECORD_SIZE - pad : 0);
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index ce83950036c5..4b94ae4ae369 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -7,6 +7,7 @@
#include <asm/perf_event.h>
#include <asm/tlbflush.h>
#include <asm/insn.h>
+#include <asm/io.h>
#include "../perf_event.h"
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 5053a403e4ae..09913121e726 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -741,6 +741,8 @@ static const struct x86_cpu_id rapl_model_match[] __initconst = {
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT_PLUS, model_hsw),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ICELAKE_L, model_skl),
X86_RAPL_MODEL_MATCH(INTEL_FAM6_ICELAKE, model_skl),
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_COMETLAKE_L, model_skl),
+ X86_RAPL_MODEL_MATCH(INTEL_FAM6_COMETLAKE, model_skl),
{},
};
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index dbaa1b088a30..c37cb12d0ef6 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -15,6 +15,7 @@
#define PCI_DEVICE_ID_INTEL_SKL_HQ_IMC 0x1910
#define PCI_DEVICE_ID_INTEL_SKL_SD_IMC 0x190f
#define PCI_DEVICE_ID_INTEL_SKL_SQ_IMC 0x191f
+#define PCI_DEVICE_ID_INTEL_SKL_E3_IMC 0x1918
#define PCI_DEVICE_ID_INTEL_KBL_Y_IMC 0x590c
#define PCI_DEVICE_ID_INTEL_KBL_U_IMC 0x5904
#define PCI_DEVICE_ID_INTEL_KBL_UQ_IMC 0x5914
@@ -658,6 +659,10 @@ static const struct pci_device_id skl_uncore_pci_ids[] = {
.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
},
{ /* IMC */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_E3_IMC),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
+ },
+ { /* IMC */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_Y_IMC),
.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
},
@@ -826,6 +831,7 @@ static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
IMC_DEV(SKL_HQ_IMC, &skl_uncore_pci_driver), /* 6th Gen Core H Quad Core */
IMC_DEV(SKL_SD_IMC, &skl_uncore_pci_driver), /* 6th Gen Core S Dual Core */
IMC_DEV(SKL_SQ_IMC, &skl_uncore_pci_driver), /* 6th Gen Core S Quad Core */
+ IMC_DEV(SKL_E3_IMC, &skl_uncore_pci_driver), /* Xeon E3 V5 Gen Core processor */
IMC_DEV(KBL_Y_IMC, &skl_uncore_pci_driver), /* 7th Gen Core Y */
IMC_DEV(KBL_U_IMC, &skl_uncore_pci_driver), /* 7th Gen Core U */
IMC_DEV(KBL_UQ_IMC, &skl_uncore_pci_driver), /* 7th Gen Core U Quad Core */
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index b10a5ec79e48..ad20220af303 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -369,11 +369,6 @@
#define SNR_M2M_PCI_PMON_BOX_CTL 0x438
#define SNR_M2M_PCI_PMON_UMASK_EXT 0xff
-/* SNR PCIE3 */
-#define SNR_PCIE3_PCI_PMON_CTL0 0x508
-#define SNR_PCIE3_PCI_PMON_CTR0 0x4e8
-#define SNR_PCIE3_PCI_PMON_BOX_CTL 0x4e4
-
/* SNR IMC */
#define SNR_IMC_MMIO_PMON_FIXED_CTL 0x54
#define SNR_IMC_MMIO_PMON_FIXED_CTR 0x38
@@ -4328,27 +4323,12 @@ static struct intel_uncore_type snr_uncore_m2m = {
.format_group = &snr_m2m_uncore_format_group,
};
-static struct intel_uncore_type snr_uncore_pcie3 = {
- .name = "pcie3",
- .num_counters = 4,
- .num_boxes = 1,
- .perf_ctr_bits = 48,
- .perf_ctr = SNR_PCIE3_PCI_PMON_CTR0,
- .event_ctl = SNR_PCIE3_PCI_PMON_CTL0,
- .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
- .box_ctl = SNR_PCIE3_PCI_PMON_BOX_CTL,
- .ops = &ivbep_uncore_pci_ops,
- .format_group = &ivbep_uncore_format_group,
-};
-
enum {
SNR_PCI_UNCORE_M2M,
- SNR_PCI_UNCORE_PCIE3,
};
static struct intel_uncore_type *snr_pci_uncores[] = {
[SNR_PCI_UNCORE_M2M] = &snr_uncore_m2m,
- [SNR_PCI_UNCORE_PCIE3] = &snr_uncore_pcie3,
NULL,
};
@@ -4357,10 +4337,6 @@ static const struct pci_device_id snr_uncore_pci_ids[] = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x344a),
.driver_data = UNCORE_PCI_DEV_FULL_DATA(12, 0, SNR_PCI_UNCORE_M2M, 0),
},
- { /* PCIe3 */
- PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x334a),
- .driver_data = UNCORE_PCI_DEV_FULL_DATA(4, 0, SNR_PCI_UNCORE_PCIE3, 0),
- },
{ /* end: all zeroes */ }
};
@@ -4536,6 +4512,7 @@ static struct uncore_event_desc snr_uncore_imc_freerunning_events[] = {
INTEL_UNCORE_EVENT_DESC(write, "event=0xff,umask=0x21"),
INTEL_UNCORE_EVENT_DESC(write.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(write.unit, "MiB"),
+ { /* end: all zeroes */ },
};
static struct intel_uncore_ops snr_uncore_imc_freerunning_ops = {
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 930611db8f9a..f1cd1ca1a77b 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -77,6 +77,7 @@ static inline bool constraint_match(struct event_constraint *c, u64 ecode)
#define PERF_X86_EVENT_AUTO_RELOAD 0x0200 /* use PEBS auto-reload */
#define PERF_X86_EVENT_LARGE_PEBS 0x0400 /* use large PEBS */
#define PERF_X86_EVENT_PEBS_VIA_PT 0x0800 /* use PT buffer for PEBS */
+#define PERF_X86_EVENT_PAIR 0x1000 /* Large Increment per Cycle */
struct amd_nb {
int nb_id; /* NorthBridge id */
@@ -272,6 +273,7 @@ struct cpu_hw_events {
struct amd_nb *amd_nb;
/* Inverted mask of bits to clear in the perf_ctr ctrl registers */
u64 perf_ctr_virt_mask;
+ int n_pair; /* Large increment events */
void *kfree_on_online[X86_PERF_KFREE_MAX];
};
@@ -694,6 +696,7 @@ struct x86_pmu {
* AMD bits
*/
unsigned int amd_nb_constraints : 1;
+ u64 perf_ctr_pair_en;
/*
* Extra registers for events
@@ -743,6 +746,7 @@ do { \
#define PMU_FL_EXCL_ENABLED 0x8 /* exclusive counter active */
#define PMU_FL_PEBS_ALL 0x10 /* all events are valid PEBS events */
#define PMU_FL_TFA 0x20 /* deal with TSX force abort */
+#define PMU_FL_PAIR 0x40 /* merge counters for large incr. events */
#define EVENT_VAR(_id) event_attr_##_id
#define EVENT_PTR(_id) &event_attr_##_id.attr.attr
@@ -838,6 +842,11 @@ int x86_pmu_hw_config(struct perf_event *event);
void x86_pmu_disable_all(void);
+static inline bool is_counter_pair(struct hw_perf_event *hwc)
+{
+ return hwc->flags & PERF_X86_EVENT_PAIR;
+}
+
static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
u64 enable_mask)
{
@@ -845,6 +854,14 @@ static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
if (hwc->extra_reg.reg)
wrmsrl(hwc->extra_reg.reg, hwc->extra_reg.config);
+
+ /*
+ * Add enabled Merge event on next counter
+ * if large increment event being enabled on this counter
+ */
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_config_addr(hwc->idx + 1), x86_pmu.perf_ctr_pair_en);
+
wrmsrl(hwc->config_base, (hwc->config | enable_mask) & ~disable_mask);
}
@@ -861,6 +878,9 @@ static inline void x86_pmu_disable_event(struct perf_event *event)
struct hw_perf_event *hwc = &event->hw;
wrmsrl(hwc->config_base, hwc->config);
+
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_config_addr(hwc->idx + 1), 0);
}
void x86_pmu_enable_event(struct perf_event *event);
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 30416d7f19d4..a3aefe9b9401 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -114,8 +114,6 @@ static int ia32_restore_sigcontext(struct pt_regs *regs,
err |= fpu__restore_sig(buf, 1);
- force_iret();
-
return err;
}
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index bc9693c9107e..ca0976456a6b 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -13,7 +13,6 @@
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/mpspec.h>
-#include <asm/realmode.h>
#include <asm/x86_init.h>
#ifdef CONFIG_ACPI_APEI
@@ -62,7 +61,7 @@ static inline void acpi_disable_pci(void)
extern int (*acpi_suspend_lowlevel)(void);
/* Physical address to resume after wakeup */
-#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start))
+unsigned long acpi_get_wakeup_address(void);
/*
* Check if the CPU can handle C2 and deeper
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 22c4dfe65992..52e9f3480f69 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -177,23 +177,6 @@ typedef struct user_regs_struct compat_elf_gregset_t;
(!!(task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT))
#endif
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
-{
- return (void __user *)(unsigned long)uptr;
-}
-
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
-{
- return (u32)(unsigned long)uptr;
-}
-
static inline void __user *arch_compat_alloc_user_space(long len)
{
compat_uptr_t sp;
diff --git a/arch/x86/include/asm/cpu_entry_area.h b/arch/x86/include/asm/cpu_entry_area.h
index 804734058c77..02c0078d3787 100644
--- a/arch/x86/include/asm/cpu_entry_area.h
+++ b/arch/x86/include/asm/cpu_entry_area.h
@@ -6,6 +6,7 @@
#include <linux/percpu-defs.h>
#include <asm/processor.h>
#include <asm/intel_ds.h>
+#include <asm/pgtable_areas.h>
#ifdef CONFIG_X86_64
@@ -134,15 +135,6 @@ DECLARE_PER_CPU(struct cea_exception_stacks *, cea_exception_stacks);
extern void setup_cpu_entry_areas(void);
extern void cea_set_pte(void *cea_vaddr, phys_addr_t pa, pgprot_t flags);
-/* Single page reserved for the readonly IDT mapping: */
-#define CPU_ENTRY_AREA_RO_IDT CPU_ENTRY_AREA_BASE
-#define CPU_ENTRY_AREA_PER_CPU (CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
-
-#define CPU_ENTRY_AREA_RO_IDT_VADDR ((void *)CPU_ENTRY_AREA_RO_IDT)
-
-#define CPU_ENTRY_AREA_MAP_SIZE \
- (CPU_ENTRY_AREA_PER_CPU + CPU_ENTRY_AREA_ARRAY_SIZE - CPU_ENTRY_AREA_BASE)
-
extern struct cpu_entry_area *get_cpu_entry_area(int cpu);
static inline struct entry_stack *cpu_entry_stack(int cpu)
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index e9b62498fe75..f3327cb56edf 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -220,6 +220,7 @@
#define X86_FEATURE_ZEN ( 7*32+28) /* "" CPU is AMD family 0x17 (Zen) */
#define X86_FEATURE_L1TF_PTEINV ( 7*32+29) /* "" L1TF workaround PTE inversion */
#define X86_FEATURE_IBRS_ENHANCED ( 7*32+30) /* Enhanced IBRS */
+#define X86_FEATURE_MSR_IA32_FEAT_CTL ( 7*32+31) /* "" MSR IA32_FEAT_CTL configured */
/* Virtualization flags: Linux defined, word 8 */
#define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */
@@ -357,6 +358,7 @@
/* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
#define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_FSRM (18*32+ 4) /* Fast Short Rep Mov */
#define X86_FEATURE_AVX512_VP2INTERSECT (18*32+ 8) /* AVX-512 Intersect for D/Q */
#define X86_FEATURE_MD_CLEAR (18*32+10) /* VERW clears CPU buffers */
#define X86_FEATURE_TSX_FORCE_ABORT (18*32+13) /* "" TSX_FORCE_ABORT */
diff --git a/arch/x86/include/asm/crypto/camellia.h b/arch/x86/include/asm/crypto/camellia.h
index a5d86fc0593f..f6d91861cb14 100644
--- a/arch/x86/include/asm/crypto/camellia.h
+++ b/arch/x86/include/asm/crypto/camellia.h
@@ -26,71 +26,66 @@ struct camellia_xts_ctx {
extern int __camellia_setkey(struct camellia_ctx *cctx,
const unsigned char *key,
- unsigned int key_len, u32 *flags);
+ unsigned int key_len);
extern int xts_camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen);
/* regular block cipher functions */
-asmlinkage void __camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, bool xor);
-asmlinkage void camellia_dec_blk(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+asmlinkage void camellia_dec_blk(const void *ctx, u8 *dst, const u8 *src);
/* 2-way parallel cipher functions */
-asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, bool xor);
-asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void __camellia_enc_blk_2way(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+asmlinkage void camellia_dec_blk_2way(const void *ctx, u8 *dst, const u8 *src);
/* 16-way parallel cipher functions (avx/aes-ni) */
-asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
-
-asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
-
-asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
-asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
-
-static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src)
+asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+
+asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void camellia_ctr_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+
+asmlinkage void camellia_xts_enc_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+asmlinkage void camellia_xts_dec_16way(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+
+static inline void camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src)
{
__camellia_enc_blk(ctx, dst, src, false);
}
-static inline void camellia_enc_blk_xor(struct camellia_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void camellia_enc_blk_xor(const void *ctx, u8 *dst, const u8 *src)
{
__camellia_enc_blk(ctx, dst, src, true);
}
-static inline void camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst,
+static inline void camellia_enc_blk_2way(const void *ctx, u8 *dst,
const u8 *src)
{
__camellia_enc_blk_2way(ctx, dst, src, false);
}
-static inline void camellia_enc_blk_xor_2way(struct camellia_ctx *ctx, u8 *dst,
+static inline void camellia_enc_blk_xor_2way(const void *ctx, u8 *dst,
const u8 *src)
{
__camellia_enc_blk_2way(ctx, dst, src, true);
}
/* glue helpers */
-extern void camellia_decrypt_cbc_2way(void *ctx, u128 *dst, const u128 *src);
-extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
+extern void camellia_decrypt_cbc_2way(const void *ctx, u8 *dst, const u8 *src);
+extern void camellia_crypt_ctr(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,
+extern void camellia_crypt_ctr_2way(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-extern void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv);
-extern void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv);
+extern void camellia_xts_enc(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
+extern void camellia_xts_dec(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
#endif /* ASM_X86_CAMELLIA_H */
diff --git a/arch/x86/include/asm/crypto/glue_helper.h b/arch/x86/include/asm/crypto/glue_helper.h
index 8d4a8e1226ee..777c0f63418c 100644
--- a/arch/x86/include/asm/crypto/glue_helper.h
+++ b/arch/x86/include/asm/crypto/glue_helper.h
@@ -11,18 +11,13 @@
#include <asm/fpu/api.h>
#include <crypto/b128ops.h>
-typedef void (*common_glue_func_t)(void *ctx, u8 *dst, const u8 *src);
-typedef void (*common_glue_cbc_func_t)(void *ctx, u128 *dst, const u128 *src);
-typedef void (*common_glue_ctr_func_t)(void *ctx, u128 *dst, const u128 *src,
+typedef void (*common_glue_func_t)(const void *ctx, u8 *dst, const u8 *src);
+typedef void (*common_glue_cbc_func_t)(const void *ctx, u8 *dst, const u8 *src);
+typedef void (*common_glue_ctr_func_t)(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-typedef void (*common_glue_xts_func_t)(void *ctx, u128 *dst, const u128 *src,
+typedef void (*common_glue_xts_func_t)(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-#define GLUE_FUNC_CAST(fn) ((common_glue_func_t)(fn))
-#define GLUE_CBC_FUNC_CAST(fn) ((common_glue_cbc_func_t)(fn))
-#define GLUE_CTR_FUNC_CAST(fn) ((common_glue_ctr_func_t)(fn))
-#define GLUE_XTS_FUNC_CAST(fn) ((common_glue_xts_func_t)(fn))
-
struct common_glue_func_entry {
unsigned int num_blocks; /* number of blocks that @fn will process */
union {
@@ -116,7 +111,8 @@ extern int glue_xts_req_128bit(const struct common_glue_ctx *gctx,
common_glue_func_t tweak_fn, void *tweak_ctx,
void *crypt_ctx, bool decrypt);
-extern void glue_xts_crypt_128bit_one(void *ctx, u128 *dst, const u128 *src,
- le128 *iv, common_glue_func_t fn);
+extern void glue_xts_crypt_128bit_one(const void *ctx, u8 *dst,
+ const u8 *src, le128 *iv,
+ common_glue_func_t fn);
#endif /* _CRYPTO_GLUE_HELPER_H */
diff --git a/arch/x86/include/asm/crypto/serpent-avx.h b/arch/x86/include/asm/crypto/serpent-avx.h
index db7c9cc32234..251c2c89d7cf 100644
--- a/arch/x86/include/asm/crypto/serpent-avx.h
+++ b/arch/x86/include/asm/crypto/serpent-avx.h
@@ -15,26 +15,26 @@ struct serpent_xts_ctx {
struct serpent_ctx crypt_ctx;
};
-asmlinkage void serpent_ecb_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_enc_8way_avx(const void *ctx, u8 *dst,
const u8 *src);
-asmlinkage void serpent_ecb_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_ecb_dec_8way_avx(const void *ctx, u8 *dst,
const u8 *src);
-asmlinkage void serpent_cbc_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_cbc_dec_8way_avx(const void *ctx, u8 *dst,
const u8 *src);
-asmlinkage void serpent_ctr_8way_avx(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src, le128 *iv);
+asmlinkage void serpent_ctr_8way_avx(const void *ctx, u8 *dst, const u8 *src,
+ le128 *iv);
-asmlinkage void serpent_xts_enc_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_xts_enc_8way_avx(const void *ctx, u8 *dst,
const u8 *src, le128 *iv);
-asmlinkage void serpent_xts_dec_8way_avx(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_xts_dec_8way_avx(const void *ctx, u8 *dst,
const u8 *src, le128 *iv);
-extern void __serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src,
+extern void __serpent_crypt_ctr(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-extern void serpent_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv);
-extern void serpent_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv);
+extern void serpent_xts_enc(const void *ctx, u8 *dst, const u8 *src, le128 *iv);
+extern void serpent_xts_dec(const void *ctx, u8 *dst, const u8 *src, le128 *iv);
extern int xts_serpent_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen);
diff --git a/arch/x86/include/asm/crypto/serpent-sse2.h b/arch/x86/include/asm/crypto/serpent-sse2.h
index 1a345e8a7496..860ca248914b 100644
--- a/arch/x86/include/asm/crypto/serpent-sse2.h
+++ b/arch/x86/include/asm/crypto/serpent-sse2.h
@@ -9,25 +9,23 @@
#define SERPENT_PARALLEL_BLOCKS 4
-asmlinkage void __serpent_enc_blk_4way(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void __serpent_enc_blk_4way(const struct serpent_ctx *ctx, u8 *dst,
const u8 *src, bool xor);
-asmlinkage void serpent_dec_blk_4way(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_dec_blk_4way(const struct serpent_ctx *ctx, u8 *dst,
const u8 *src);
-static inline void serpent_enc_blk_xway(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void serpent_enc_blk_xway(const void *ctx, u8 *dst, const u8 *src)
{
__serpent_enc_blk_4way(ctx, dst, src, false);
}
-static inline void serpent_enc_blk_xway_xor(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void serpent_enc_blk_xway_xor(const struct serpent_ctx *ctx,
+ u8 *dst, const u8 *src)
{
__serpent_enc_blk_4way(ctx, dst, src, true);
}
-static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void serpent_dec_blk_xway(const void *ctx, u8 *dst, const u8 *src)
{
serpent_dec_blk_4way(ctx, dst, src);
}
@@ -36,25 +34,23 @@ static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst,
#define SERPENT_PARALLEL_BLOCKS 8
-asmlinkage void __serpent_enc_blk_8way(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void __serpent_enc_blk_8way(const struct serpent_ctx *ctx, u8 *dst,
const u8 *src, bool xor);
-asmlinkage void serpent_dec_blk_8way(struct serpent_ctx *ctx, u8 *dst,
+asmlinkage void serpent_dec_blk_8way(const struct serpent_ctx *ctx, u8 *dst,
const u8 *src);
-static inline void serpent_enc_blk_xway(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void serpent_enc_blk_xway(const void *ctx, u8 *dst, const u8 *src)
{
__serpent_enc_blk_8way(ctx, dst, src, false);
}
-static inline void serpent_enc_blk_xway_xor(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void serpent_enc_blk_xway_xor(const struct serpent_ctx *ctx,
+ u8 *dst, const u8 *src)
{
__serpent_enc_blk_8way(ctx, dst, src, true);
}
-static inline void serpent_dec_blk_xway(struct serpent_ctx *ctx, u8 *dst,
- const u8 *src)
+static inline void serpent_dec_blk_xway(const void *ctx, u8 *dst, const u8 *src)
{
serpent_dec_blk_8way(ctx, dst, src);
}
diff --git a/arch/x86/include/asm/crypto/twofish.h b/arch/x86/include/asm/crypto/twofish.h
index f618bf272b90..2c377a8042e1 100644
--- a/arch/x86/include/asm/crypto/twofish.h
+++ b/arch/x86/include/asm/crypto/twofish.h
@@ -7,22 +7,19 @@
#include <crypto/b128ops.h>
/* regular block cipher functions from twofish_x86_64 module */
-asmlinkage void twofish_enc_blk(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src);
-asmlinkage void twofish_dec_blk(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void twofish_enc_blk(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void twofish_dec_blk(const void *ctx, u8 *dst, const u8 *src);
/* 3-way parallel cipher functions */
-asmlinkage void __twofish_enc_blk_3way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src, bool xor);
-asmlinkage void twofish_dec_blk_3way(struct twofish_ctx *ctx, u8 *dst,
- const u8 *src);
+asmlinkage void __twofish_enc_blk_3way(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+asmlinkage void twofish_dec_blk_3way(const void *ctx, u8 *dst, const u8 *src);
/* helpers from twofish_x86_64-3way module */
-extern void twofish_dec_blk_cbc_3way(void *ctx, u128 *dst, const u128 *src);
-extern void twofish_enc_blk_ctr(void *ctx, u128 *dst, const u128 *src,
+extern void twofish_dec_blk_cbc_3way(const void *ctx, u8 *dst, const u8 *src);
+extern void twofish_enc_blk_ctr(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
-extern void twofish_enc_blk_ctr_3way(void *ctx, u128 *dst, const u128 *src,
+extern void twofish_enc_blk_ctr_3way(const void *ctx, u8 *dst, const u8 *src,
le128 *iv);
#endif /* ASM_X86_TWOFISH_H */
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index d028e9acdf1c..86169a24b0d8 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -8,6 +8,7 @@
#include <asm/tlb.h>
#include <asm/nospec-branch.h>
#include <asm/mmu_context.h>
+#include <linux/build_bug.h>
/*
* We map the EFI regions needed for runtime services non-contiguously,
@@ -19,13 +20,16 @@
* This is the main reason why we're doing stable VA mappings for RT
* services.
*
- * This flag is used in conjunction with a chicken bit called
- * "efi=old_map" which can be used as a fallback to the old runtime
- * services mapping method in case there's some b0rkage with a
- * particular EFI implementation (haha, it is hard to hold up the
- * sarcasm here...).
+ * SGI UV1 machines are known to be incompatible with this scheme, so we
+ * provide an opt-out for these machines via a DMI quirk that sets the
+ * attribute below.
*/
-#define EFI_OLD_MEMMAP EFI_ARCH_1
+#define EFI_UV1_MEMMAP EFI_ARCH_1
+
+static inline bool efi_have_uv1_memmap(void)
+{
+ return IS_ENABLED(CONFIG_X86_UV) && efi_enabled(EFI_UV1_MEMMAP);
+}
#define EFI32_LOADER_SIGNATURE "EL32"
#define EFI64_LOADER_SIGNATURE "EL64"
@@ -34,10 +38,46 @@
#define ARCH_EFI_IRQ_FLAGS_MASK X86_EFLAGS_IF
-#ifdef CONFIG_X86_32
+/*
+ * The EFI services are called through variadic functions in many cases. These
+ * functions are implemented in assembler and support only a fixed number of
+ * arguments. The macros below allows us to check at build time that we don't
+ * try to call them with too many arguments.
+ *
+ * __efi_nargs() will return the number of arguments if it is 7 or less, and
+ * cause a BUILD_BUG otherwise. The limitations of the C preprocessor make it
+ * impossible to calculate the exact number of arguments beyond some
+ * pre-defined limit. The maximum number of arguments currently supported by
+ * any of the thunks is 7, so this is good enough for now and can be extended
+ * in the obvious way if we ever need more.
+ */
-extern asmlinkage unsigned long efi_call_phys(void *, ...);
+#define __efi_nargs(...) __efi_nargs_(__VA_ARGS__)
+#define __efi_nargs_(...) __efi_nargs__(0, ##__VA_ARGS__, \
+ __efi_arg_sentinel(7), __efi_arg_sentinel(6), \
+ __efi_arg_sentinel(5), __efi_arg_sentinel(4), \
+ __efi_arg_sentinel(3), __efi_arg_sentinel(2), \
+ __efi_arg_sentinel(1), __efi_arg_sentinel(0))
+#define __efi_nargs__(_0, _1, _2, _3, _4, _5, _6, _7, n, ...) \
+ __take_second_arg(n, \
+ ({ BUILD_BUG_ON_MSG(1, "__efi_nargs limit exceeded"); 8; }))
+#define __efi_arg_sentinel(n) , n
+/*
+ * __efi_nargs_check(f, n, ...) will cause a BUILD_BUG if the ellipsis
+ * represents more than n arguments.
+ */
+
+#define __efi_nargs_check(f, n, ...) \
+ __efi_nargs_check_(f, __efi_nargs(__VA_ARGS__), n)
+#define __efi_nargs_check_(f, p, n) __efi_nargs_check__(f, p, n)
+#define __efi_nargs_check__(f, p, n) ({ \
+ BUILD_BUG_ON_MSG( \
+ (p) > (n), \
+ #f " called with too many arguments (" #p ">" #n ")"); \
+})
+
+#ifdef CONFIG_X86_32
#define arch_efi_call_virt_setup() \
({ \
kernel_fpu_begin(); \
@@ -51,13 +91,7 @@ extern asmlinkage unsigned long efi_call_phys(void *, ...);
})
-/*
- * Wrap all the virtual calls in a way that forces the parameters on the stack.
- */
-#define arch_efi_call_virt(p, f, args...) \
-({ \
- ((efi_##f##_t __attribute__((regparm(0)))*) p->f)(args); \
-})
+#define arch_efi_call_virt(p, f, args...) p->f(args)
#define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size)
@@ -65,9 +99,12 @@ extern asmlinkage unsigned long efi_call_phys(void *, ...);
#define EFI_LOADER_SIGNATURE "EL64"
-extern asmlinkage u64 efi_call(void *fp, ...);
+extern asmlinkage u64 __efi_call(void *fp, ...);
-#define efi_call_phys(f, args...) efi_call((f), args)
+#define efi_call(...) ({ \
+ __efi_nargs_check(efi_call, 7, __VA_ARGS__); \
+ __efi_call(__VA_ARGS__); \
+})
/*
* struct efi_scratch - Scratch space used while switching to/from efi_mm
@@ -85,7 +122,7 @@ struct efi_scratch {
kernel_fpu_begin(); \
firmware_restrict_branch_speculation_start(); \
\
- if (!efi_enabled(EFI_OLD_MEMMAP)) \
+ if (!efi_have_uv1_memmap()) \
efi_switch_mm(&efi_mm); \
})
@@ -94,7 +131,7 @@ struct efi_scratch {
#define arch_efi_call_virt_teardown() \
({ \
- if (!efi_enabled(EFI_OLD_MEMMAP)) \
+ if (!efi_have_uv1_memmap()) \
efi_switch_mm(efi_scratch.prev_mm); \
\
firmware_restrict_branch_speculation_end(); \
@@ -121,8 +158,6 @@ extern void __iomem *__init efi_ioremap(unsigned long addr, unsigned long size,
extern struct efi_scratch efi_scratch;
extern void __init efi_set_executable(efi_memory_desc_t *md, bool executable);
extern int __init efi_memblock_x86_reserve_range(void);
-extern pgd_t * __init efi_call_phys_prolog(void);
-extern void __init efi_call_phys_epilog(pgd_t *save_pgd);
extern void __init efi_print_memmap(void);
extern void __init efi_memory_uc(u64 addr, unsigned long size);
extern void __init efi_map_region(efi_memory_desc_t *md);
@@ -140,6 +175,8 @@ extern void efi_delete_dummy_variable(void);
extern void efi_switch_mm(struct mm_struct *mm);
extern void efi_recover_from_page_fault(unsigned long phys_addr);
extern void efi_free_boot_services(void);
+extern pgd_t * __init efi_uv1_memmap_phys_prolog(void);
+extern void __init efi_uv1_memmap_phys_epilog(pgd_t *save_pgd);
struct efi_setup_data {
u64 fw_vendor;
@@ -152,93 +189,144 @@ struct efi_setup_data {
extern u64 efi_setup;
#ifdef CONFIG_EFI
+extern efi_status_t __efi64_thunk(u32, ...);
-static inline bool efi_is_native(void)
+#define efi64_thunk(...) ({ \
+ __efi_nargs_check(efi64_thunk, 6, __VA_ARGS__); \
+ __efi64_thunk(__VA_ARGS__); \
+})
+
+static inline bool efi_is_mixed(void)
{
- return IS_ENABLED(CONFIG_X86_64) == efi_enabled(EFI_64BIT);
+ if (!IS_ENABLED(CONFIG_EFI_MIXED))
+ return false;
+ return IS_ENABLED(CONFIG_X86_64) && !efi_enabled(EFI_64BIT);
}
static inline bool efi_runtime_supported(void)
{
- if (efi_is_native())
- return true;
-
- if (IS_ENABLED(CONFIG_EFI_MIXED) && !efi_enabled(EFI_OLD_MEMMAP))
+ if (IS_ENABLED(CONFIG_X86_64) == efi_enabled(EFI_64BIT))
return true;
- return false;
+ return IS_ENABLED(CONFIG_EFI_MIXED);
}
extern void parse_efi_setup(u64 phys_addr, u32 data_len);
extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
-#ifdef CONFIG_EFI_MIXED
extern void efi_thunk_runtime_setup(void);
-extern efi_status_t efi_thunk_set_virtual_address_map(
- void *phys_set_virtual_address_map,
- unsigned long memory_map_size,
- unsigned long descriptor_size,
- u32 descriptor_version,
- efi_memory_desc_t *virtual_map);
-#else
-static inline void efi_thunk_runtime_setup(void) {}
-static inline efi_status_t efi_thunk_set_virtual_address_map(
- void *phys_set_virtual_address_map,
- unsigned long memory_map_size,
- unsigned long descriptor_size,
- u32 descriptor_version,
- efi_memory_desc_t *virtual_map)
-{
- return EFI_SUCCESS;
-}
-#endif /* CONFIG_EFI_MIXED */
-
+efi_status_t efi_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map);
/* arch specific definitions used by the stub code */
-struct efi_config {
- u64 image_handle;
- u64 table;
- u64 runtime_services;
- u64 boot_services;
- u64 text_output;
- efi_status_t (*call)(unsigned long, ...);
- bool is64;
-} __packed;
-
-__pure const struct efi_config *__efi_early(void);
+__attribute_const__ bool efi_is_64bit(void);
-static inline bool efi_is_64bit(void)
+static inline bool efi_is_native(void)
{
if (!IS_ENABLED(CONFIG_X86_64))
- return false;
-
+ return true;
if (!IS_ENABLED(CONFIG_EFI_MIXED))
return true;
+ return efi_is_64bit();
+}
+
+#define efi_mixed_mode_cast(attr) \
+ __builtin_choose_expr( \
+ __builtin_types_compatible_p(u32, __typeof__(attr)), \
+ (unsigned long)(attr), (attr))
- return __efi_early()->is64;
+#define efi_table_attr(inst, attr) \
+ (efi_is_native() \
+ ? inst->attr \
+ : (__typeof__(inst->attr)) \
+ efi_mixed_mode_cast(inst->mixed_mode.attr))
+
+/*
+ * The following macros allow translating arguments if necessary from native to
+ * mixed mode. The use case for this is to initialize the upper 32 bits of
+ * output parameters, and where the 32-bit method requires a 64-bit argument,
+ * which must be split up into two arguments to be thunked properly.
+ *
+ * As examples, the AllocatePool boot service returns the address of the
+ * allocation, but it will not set the high 32 bits of the address. To ensure
+ * that the full 64-bit address is initialized, we zero-init the address before
+ * calling the thunk.
+ *
+ * The FreePages boot service takes a 64-bit physical address even in 32-bit
+ * mode. For the thunk to work correctly, a native 64-bit call of
+ * free_pages(addr, size)
+ * must be translated to
+ * efi64_thunk(free_pages, addr & U32_MAX, addr >> 32, size)
+ * so that the two 32-bit halves of addr get pushed onto the stack separately.
+ */
+
+static inline void *efi64_zero_upper(void *p)
+{
+ ((u32 *)p)[1] = 0;
+ return p;
}
-#define efi_table_attr(table, attr, instance) \
- (efi_is_64bit() ? \
- ((table##_64_t *)(unsigned long)instance)->attr : \
- ((table##_32_t *)(unsigned long)instance)->attr)
+#define __efi64_argmap_free_pages(addr, size) \
+ ((addr), 0, (size))
+
+#define __efi64_argmap_get_memory_map(mm_size, mm, key, size, ver) \
+ ((mm_size), (mm), efi64_zero_upper(key), efi64_zero_upper(size), (ver))
+
+#define __efi64_argmap_allocate_pool(type, size, buffer) \
+ ((type), (size), efi64_zero_upper(buffer))
-#define efi_call_proto(protocol, f, instance, ...) \
- __efi_early()->call(efi_table_attr(protocol, f, instance), \
- instance, ##__VA_ARGS__)
+#define __efi64_argmap_handle_protocol(handle, protocol, interface) \
+ ((handle), (protocol), efi64_zero_upper(interface))
-#define efi_call_early(f, ...) \
- __efi_early()->call(efi_table_attr(efi_boot_services, f, \
- __efi_early()->boot_services), __VA_ARGS__)
+#define __efi64_argmap_locate_protocol(protocol, reg, interface) \
+ ((protocol), (reg), efi64_zero_upper(interface))
-#define __efi_call_early(f, ...) \
- __efi_early()->call((unsigned long)f, __VA_ARGS__);
+/* PCI I/O */
+#define __efi64_argmap_get_location(protocol, seg, bus, dev, func) \
+ ((protocol), efi64_zero_upper(seg), efi64_zero_upper(bus), \
+ efi64_zero_upper(dev), efi64_zero_upper(func))
+
+/*
+ * The macros below handle the plumbing for the argument mapping. To add a
+ * mapping for a specific EFI method, simply define a macro
+ * __efi64_argmap_<method name>, following the examples above.
+ */
-#define efi_call_runtime(f, ...) \
- __efi_early()->call(efi_table_attr(efi_runtime_services, f, \
- __efi_early()->runtime_services), __VA_ARGS__)
+#define __efi64_thunk_map(inst, func, ...) \
+ efi64_thunk(inst->mixed_mode.func, \
+ __efi64_argmap(__efi64_argmap_ ## func(__VA_ARGS__), \
+ (__VA_ARGS__)))
+
+#define __efi64_argmap(mapped, args) \
+ __PASTE(__efi64_argmap__, __efi_nargs(__efi_eat mapped))(mapped, args)
+#define __efi64_argmap__0(mapped, args) __efi_eval mapped
+#define __efi64_argmap__1(mapped, args) __efi_eval args
+
+#define __efi_eat(...)
+#define __efi_eval(...) __VA_ARGS__
+
+/* The three macros below handle dispatching via the thunk if needed */
+
+#define efi_call_proto(inst, func, ...) \
+ (efi_is_native() \
+ ? inst->func(inst, ##__VA_ARGS__) \
+ : __efi64_thunk_map(inst, func, inst, ##__VA_ARGS__))
+
+#define efi_bs_call(func, ...) \
+ (efi_is_native() \
+ ? efi_system_table()->boottime->func(__VA_ARGS__) \
+ : __efi64_thunk_map(efi_table_attr(efi_system_table(), \
+ boottime), func, __VA_ARGS__))
+
+#define efi_rt_call(func, ...) \
+ (efi_is_native() \
+ ? efi_system_table()->runtime->func(__VA_ARGS__) \
+ : __efi64_thunk_map(efi_table_attr(efi_system_table(), \
+ runtime), func, __VA_ARGS__))
extern bool efi_reboot_required(void);
extern bool efi_is_table_address(unsigned long phys_addr);
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index c2a7458f912c..85be2f506272 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -47,8 +47,6 @@ struct dyn_arch_ftrace {
/* No extra data needed for x86 */
};
-int ftrace_int3_handler(struct pt_regs *regs);
-
#define FTRACE_GRAPH_TRAMP_ADDR FTRACE_GRAPH_ADDR
#endif /* CONFIG_DYNAMIC_FTRACE */
diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index c606c0b70738..4981c293f926 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -111,6 +111,7 @@
#define INTEL_FAM6_ATOM_TREMONT_D 0x86 /* Jacobsville */
#define INTEL_FAM6_ATOM_TREMONT 0x96 /* Elkhart Lake */
+#define INTEL_FAM6_ATOM_TREMONT_L 0x9C /* Jasper Lake */
/* Xeon Phi */
diff --git a/arch/x86/include/asm/intel_pmc_ipc.h b/arch/x86/include/asm/intel_pmc_ipc.h
index 9e7adcdbe031..e6da1ce26256 100644
--- a/arch/x86/include/asm/intel_pmc_ipc.h
+++ b/arch/x86/include/asm/intel_pmc_ipc.h
@@ -31,30 +31,13 @@
#if IS_ENABLED(CONFIG_INTEL_PMC_IPC)
-int intel_pmc_ipc_simple_command(int cmd, int sub);
-int intel_pmc_ipc_raw_cmd(u32 cmd, u32 sub, u8 *in, u32 inlen,
- u32 *out, u32 outlen, u32 dptr, u32 sptr);
int intel_pmc_ipc_command(u32 cmd, u32 sub, u8 *in, u32 inlen,
u32 *out, u32 outlen);
int intel_pmc_s0ix_counter_read(u64 *data);
-int intel_pmc_gcr_read(u32 offset, u32 *data);
int intel_pmc_gcr_read64(u32 offset, u64 *data);
-int intel_pmc_gcr_write(u32 offset, u32 data);
-int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val);
#else
-static inline int intel_pmc_ipc_simple_command(int cmd, int sub)
-{
- return -EINVAL;
-}
-
-static inline int intel_pmc_ipc_raw_cmd(u32 cmd, u32 sub, u8 *in, u32 inlen,
- u32 *out, u32 outlen, u32 dptr, u32 sptr)
-{
- return -EINVAL;
-}
-
static inline int intel_pmc_ipc_command(u32 cmd, u32 sub, u8 *in, u32 inlen,
u32 *out, u32 outlen)
{
@@ -66,26 +49,11 @@ static inline int intel_pmc_s0ix_counter_read(u64 *data)
return -EINVAL;
}
-static inline int intel_pmc_gcr_read(u32 offset, u32 *data)
-{
- return -EINVAL;
-}
-
static inline int intel_pmc_gcr_read64(u32 offset, u64 *data)
{
return -EINVAL;
}
-static inline int intel_pmc_gcr_write(u32 offset, u32 data)
-{
- return -EINVAL;
-}
-
-static inline int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val)
-{
- return -EINVAL;
-}
-
#endif /*CONFIG_INTEL_PMC_IPC*/
#endif
diff --git a/arch/x86/include/asm/intel_scu_ipc.h b/arch/x86/include/asm/intel_scu_ipc.h
index 4a8c6e817398..2a1442ba6e78 100644
--- a/arch/x86/include/asm/intel_scu_ipc.h
+++ b/arch/x86/include/asm/intel_scu_ipc.h
@@ -22,24 +22,12 @@
/* Read single register */
int intel_scu_ipc_ioread8(u16 addr, u8 *data);
-/* Read two sequential registers */
-int intel_scu_ipc_ioread16(u16 addr, u16 *data);
-
-/* Read four sequential registers */
-int intel_scu_ipc_ioread32(u16 addr, u32 *data);
-
/* Read a vector */
int intel_scu_ipc_readv(u16 *addr, u8 *data, int len);
/* Write single register */
int intel_scu_ipc_iowrite8(u16 addr, u8 data);
-/* Write two sequential registers */
-int intel_scu_ipc_iowrite16(u16 addr, u16 data);
-
-/* Write four sequential registers */
-int intel_scu_ipc_iowrite32(u16 addr, u32 data);
-
/* Write a vector */
int intel_scu_ipc_writev(u16 *addr, u8 *data, int len);
@@ -50,14 +38,6 @@ int intel_scu_ipc_update_register(u16 addr, u8 data, u8 mask);
int intel_scu_ipc_simple_command(int cmd, int sub);
int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
u32 *out, int outlen);
-int intel_scu_ipc_raw_command(int cmd, int sub, u8 *in, int inlen,
- u32 *out, int outlen, u32 dptr, u32 sptr);
-
-/* I2C control api */
-int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data);
-
-/* Update FW version */
-int intel_scu_ipc_fw_update(u8 *buffer, u32 length);
extern struct blocking_notifier_head intel_scu_notifier;
diff --git a/arch/x86/include/asm/intel_telemetry.h b/arch/x86/include/asm/intel_telemetry.h
index 214394860632..2f77e31a1283 100644
--- a/arch/x86/include/asm/intel_telemetry.h
+++ b/arch/x86/include/asm/intel_telemetry.h
@@ -40,13 +40,10 @@ struct telemetry_evtmap {
struct telemetry_unit_config {
struct telemetry_evtmap *telem_evts;
void __iomem *regmap;
- u32 ssram_base_addr;
u8 ssram_evts_used;
u8 curr_period;
u8 max_period;
u8 min_period;
- u32 ssram_size;
-
};
struct telemetry_plt_config {
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 9997521fc5cd..e1aa17a468a8 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -399,4 +399,40 @@ extern bool arch_memremap_can_ram_remap(resource_size_t offset,
extern bool phys_mem_access_encrypted(unsigned long phys_addr,
unsigned long size);
+/**
+ * iosubmit_cmds512 - copy data to single MMIO location, in 512-bit units
+ * @__dst: destination, in MMIO space (must be 512-bit aligned)
+ * @src: source
+ * @count: number of 512 bits quantities to submit
+ *
+ * Submit data from kernel space to MMIO space, in units of 512 bits at a
+ * time. Order of access is not guaranteed, nor is a memory barrier
+ * performed afterwards.
+ *
+ * Warning: Do not use this helper unless your driver has checked that the CPU
+ * instruction is supported on the platform.
+ */
+static inline void iosubmit_cmds512(void __iomem *__dst, const void *src,
+ size_t count)
+{
+ /*
+ * Note that this isn't an "on-stack copy", just definition of "dst"
+ * as a pointer to 64-bytes of stuff that is going to be overwritten.
+ * In the MOVDIR64B case that may be needed as you can use the
+ * MOVDIR64B instruction to copy arbitrary memory around. This trick
+ * lets the compiler know how much gets clobbered.
+ */
+ volatile struct { char _[64]; } *dst = __dst;
+ const u8 *from = src;
+ const u8 *end = from + count * 64;
+
+ while (from < end) {
+ /* MOVDIR64B [rdx], rax */
+ asm volatile(".byte 0x66, 0x0f, 0x38, 0xf8, 0x02"
+ : "=m" (dst)
+ : "d" (from), "a" (dst));
+ from += 64;
+ }
+}
+
#endif /* _ASM_X86_IO_H */
diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h
index 75f1e35e7c15..247ab14c6309 100644
--- a/arch/x86/include/asm/kdebug.h
+++ b/arch/x86/include/asm/kdebug.h
@@ -33,6 +33,7 @@ enum show_regs_mode {
};
extern void die(const char *, struct pt_regs *,long);
+void die_addr(const char *str, struct pt_regs *regs, long err, long gp_addr);
extern int __must_check __die(const char *, struct pt_regs *, long);
extern void show_stack_regs(struct pt_regs *regs);
extern void __show_regs(struct pt_regs *regs, enum show_regs_mode);
diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 5dc909d9ad81..95b1f053bd96 100644
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -11,12 +11,11 @@
#include <asm-generic/kprobes.h>
-#define BREAKPOINT_INSTRUCTION 0xcc
-
#ifdef CONFIG_KPROBES
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/percpu.h>
+#include <asm/text-patching.h>
#include <asm/insn.h>
#define __ARCH_WANT_KPROBES_INSN_SLOT
@@ -25,10 +24,7 @@ struct pt_regs;
struct kprobe;
typedef u8 kprobe_opcode_t;
-#define RELATIVEJUMP_OPCODE 0xe9
-#define RELATIVEJUMP_SIZE 5
-#define RELATIVECALL_OPCODE 0xe8
-#define RELATIVE_ADDR_SIZE 4
+
#define MAX_STACK_SIZE 64
#define CUR_STACK_SIZE(ADDR) \
(current_top_of_stack() - (unsigned long)(ADDR))
@@ -43,11 +39,11 @@ extern __visible kprobe_opcode_t optprobe_template_entry[];
extern __visible kprobe_opcode_t optprobe_template_val[];
extern __visible kprobe_opcode_t optprobe_template_call[];
extern __visible kprobe_opcode_t optprobe_template_end[];
-#define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + RELATIVE_ADDR_SIZE)
+#define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + DISP32_SIZE)
#define MAX_OPTINSN_SIZE \
(((unsigned long)optprobe_template_end - \
(unsigned long)optprobe_template_entry) + \
- MAX_OPTIMIZED_LENGTH + RELATIVEJUMP_SIZE)
+ MAX_OPTIMIZED_LENGTH + JMP32_INSN_SIZE)
extern const int kretprobe_blacklist_size;
@@ -73,7 +69,7 @@ struct arch_specific_insn {
struct arch_optimized_insn {
/* copy of the original instructions */
- kprobe_opcode_t copied_insn[RELATIVE_ADDR_SIZE];
+ kprobe_opcode_t copied_insn[DISP32_SIZE];
/* detour code buffer */
kprobe_opcode_t *insn;
/* the size of instructions copied to detour code buffer */
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index dc2d4b206ab7..4359b955e0b7 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -144,7 +144,7 @@ struct mce_log_buffer {
enum mce_notifier_prios {
MCE_PRIO_FIRST = INT_MAX,
- MCE_PRIO_SRAO = INT_MAX - 1,
+ MCE_PRIO_UC = INT_MAX - 1,
MCE_PRIO_EXTLOG = INT_MAX - 2,
MCE_PRIO_NFIT = INT_MAX - 3,
MCE_PRIO_EDAC = INT_MAX - 4,
@@ -290,6 +290,7 @@ extern void apei_mce_report_mem_error(int corrected,
/* These may be used by multiple smca_hwid_mcatypes */
enum smca_bank_types {
SMCA_LS = 0, /* Load Store */
+ SMCA_LS_V2, /* Load Store */
SMCA_IF, /* Instruction Fetch */
SMCA_L2_CACHE, /* L2 Cache */
SMCA_DE, /* Decoder Unit */
diff --git a/arch/x86/include/asm/memtype.h b/arch/x86/include/asm/memtype.h
new file mode 100644
index 000000000000..9c2447b3555d
--- /dev/null
+++ b/arch/x86/include/asm/memtype.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_MEMTYPE_H
+#define _ASM_X86_MEMTYPE_H
+
+#include <linux/types.h>
+#include <asm/pgtable_types.h>
+
+extern bool pat_enabled(void);
+extern void pat_disable(const char *reason);
+extern void pat_init(void);
+extern void init_cache_modes(void);
+
+extern int memtype_reserve(u64 start, u64 end,
+ enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
+extern int memtype_free(u64 start, u64 end);
+
+extern int memtype_kernel_map_sync(u64 base, unsigned long size,
+ enum page_cache_mode pcm);
+
+extern int memtype_reserve_io(resource_size_t start, resource_size_t end,
+ enum page_cache_mode *pcm);
+
+extern void memtype_free_io(resource_size_t start, resource_size_t end);
+
+extern bool pat_pfn_immune_to_uc_mtrr(unsigned long pfn);
+
+#endif /* _ASM_X86_MEMTYPE_H */
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
index 209492849566..6685e1218959 100644
--- a/arch/x86/include/asm/microcode_amd.h
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -53,6 +53,6 @@ static inline void __init load_ucode_amd_bsp(unsigned int family) {}
static inline void load_ucode_amd_ap(unsigned int family) {}
static inline int __init
save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; }
-void reload_ucode_amd(void) {}
+static inline void reload_ucode_amd(void) {}
#endif
#endif /* _ASM_X86_MICROCODE_AMD_H */
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 5f33924e200f..b243234e90cb 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -69,14 +69,6 @@ struct ldt_struct {
int slot;
};
-/* This is a multiple of PAGE_SIZE. */
-#define LDT_SLOT_STRIDE (LDT_ENTRIES * LDT_ENTRY_SIZE)
-
-static inline void *ldt_slot_va(int slot)
-{
- return (void *)(LDT_BASE_ADDR + LDT_SLOT_STRIDE * slot);
-}
-
/*
* Used for LDT copy/destruction.
*/
@@ -99,87 +91,21 @@ static inline void destroy_context_ldt(struct mm_struct *mm) { }
static inline void ldt_arch_exit_mmap(struct mm_struct *mm) { }
#endif
-static inline void load_mm_ldt(struct mm_struct *mm)
-{
#ifdef CONFIG_MODIFY_LDT_SYSCALL
- struct ldt_struct *ldt;
-
- /* READ_ONCE synchronizes with smp_store_release */
- ldt = READ_ONCE(mm->context.ldt);
-
- /*
- * Any change to mm->context.ldt is followed by an IPI to all
- * CPUs with the mm active. The LDT will not be freed until
- * after the IPI is handled by all such CPUs. This means that,
- * if the ldt_struct changes before we return, the values we see
- * will be safe, and the new values will be loaded before we run
- * any user code.
- *
- * NB: don't try to convert this to use RCU without extreme care.
- * We would still need IRQs off, because we don't want to change
- * the local LDT after an IPI loaded a newer value than the one
- * that we can see.
- */
-
- if (unlikely(ldt)) {
- if (static_cpu_has(X86_FEATURE_PTI)) {
- if (WARN_ON_ONCE((unsigned long)ldt->slot > 1)) {
- /*
- * Whoops -- either the new LDT isn't mapped
- * (if slot == -1) or is mapped into a bogus
- * slot (if slot > 1).
- */
- clear_LDT();
- return;
- }
-
- /*
- * If page table isolation is enabled, ldt->entries
- * will not be mapped in the userspace pagetables.
- * Tell the CPU to access the LDT through the alias
- * at ldt_slot_va(ldt->slot).
- */
- set_ldt(ldt_slot_va(ldt->slot), ldt->nr_entries);
- } else {
- set_ldt(ldt->entries, ldt->nr_entries);
- }
- } else {
- clear_LDT();
- }
+extern void load_mm_ldt(struct mm_struct *mm);
+extern void switch_ldt(struct mm_struct *prev, struct mm_struct *next);
#else
+static inline void load_mm_ldt(struct mm_struct *mm)
+{
clear_LDT();
-#endif
}
-
static inline void switch_ldt(struct mm_struct *prev, struct mm_struct *next)
{
-#ifdef CONFIG_MODIFY_LDT_SYSCALL
- /*
- * Load the LDT if either the old or new mm had an LDT.
- *
- * An mm will never go from having an LDT to not having an LDT. Two
- * mms never share an LDT, so we don't gain anything by checking to
- * see whether the LDT changed. There's also no guarantee that
- * prev->context.ldt actually matches LDTR, but, if LDTR is non-NULL,
- * then prev->context.ldt will also be non-NULL.
- *
- * If we really cared, we could optimize the case where prev == next
- * and we're exiting lazy mode. Most of the time, if this happens,
- * we don't actually need to reload LDTR, but modify_ldt() is mostly
- * used by legacy code and emulators where we don't need this level of
- * performance.
- *
- * This uses | instead of || because it generates better code.
- */
- if (unlikely((unsigned long)prev->context.ldt |
- (unsigned long)next->context.ldt))
- load_mm_ldt(next);
-#endif
-
DEBUG_LOCKS_WARN_ON(preemptible());
}
+#endif
-void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk);
+extern void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk);
/*
* Init a new mm. Used on mm copies, like at fork()
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 084e98da04a7..ebe1685e92dd 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -558,7 +558,14 @@
#define MSR_IA32_EBL_CR_POWERON 0x0000002a
#define MSR_EBC_FREQUENCY_ID 0x0000002c
#define MSR_SMI_COUNT 0x00000034
-#define MSR_IA32_FEATURE_CONTROL 0x0000003a
+
+/* Referred to as IA32_FEATURE_CONTROL in Intel's SDM. */
+#define MSR_IA32_FEAT_CTL 0x0000003a
+#define FEAT_CTL_LOCKED BIT(0)
+#define FEAT_CTL_VMX_ENABLED_INSIDE_SMX BIT(1)
+#define FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX BIT(2)
+#define FEAT_CTL_LMCE_ENABLED BIT(20)
+
#define MSR_IA32_TSC_ADJUST 0x0000003b
#define MSR_IA32_BNDCFGS 0x00000d90
@@ -566,11 +573,6 @@
#define MSR_IA32_XSS 0x00000da0
-#define FEATURE_CONTROL_LOCKED (1<<0)
-#define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX (1<<1)
-#define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX (1<<2)
-#define FEATURE_CONTROL_LMCE (1<<20)
-
#define MSR_IA32_APICBASE 0x0000001b
#define MSR_IA32_APICBASE_BSP (1<<8)
#define MSR_IA32_APICBASE_ENABLE (1<<11)
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h
index dbff1456d215..829df26fd7a3 100644
--- a/arch/x86/include/asm/mtrr.h
+++ b/arch/x86/include/asm/mtrr.h
@@ -24,7 +24,7 @@
#define _ASM_X86_MTRR_H
#include <uapi/asm/mtrr.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
/*
@@ -86,7 +86,7 @@ static inline void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi)
}
static inline void mtrr_bp_init(void)
{
- pat_disable("MTRRs disabled, skipping PAT initialization too.");
+ pat_disable("PAT support disabled because CONFIG_MTRR is disabled in the kernel.");
}
#define mtrr_ap_init() do {} while (0)
diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index 75ded1d13d98..9d5d949e662e 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -41,7 +41,6 @@ struct nmiaction {
struct list_head list;
nmi_handler_t handler;
u64 max_duration;
- struct irq_work irq_work;
unsigned long flags;
const char *name;
};
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 5c24a7b35166..07e95dcb40ad 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -37,7 +37,6 @@
*/
#define RSB_CLEAR_LOOPS 32 /* To forcibly overwrite all entries */
-#define RSB_FILL_LOOPS 16 /* To avoid underflow */
/*
* Google experimented with loop-unrolling and this turned out to be
diff --git a/arch/x86/include/asm/pat.h b/arch/x86/include/asm/pat.h
deleted file mode 100644
index 92015c65fa2a..000000000000
--- a/arch/x86/include/asm/pat.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_X86_PAT_H
-#define _ASM_X86_PAT_H
-
-#include <linux/types.h>
-#include <asm/pgtable_types.h>
-
-bool pat_enabled(void);
-void pat_disable(const char *reason);
-extern void pat_init(void);
-extern void init_cache_modes(void);
-
-extern int reserve_memtype(u64 start, u64 end,
- enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
-extern int free_memtype(u64 start, u64 end);
-
-extern int kernel_map_sync_memtype(u64 base, unsigned long size,
- enum page_cache_mode pcm);
-
-int io_reserve_memtype(resource_size_t start, resource_size_t end,
- enum page_cache_mode *pcm);
-
-void io_free_memtype(resource_size_t start, resource_size_t end);
-
-bool pat_pfn_immune_to_uc_mtrr(unsigned long pfn);
-
-#endif /* _ASM_X86_PAT_H */
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 90d0731fdcb6..c1fdd43fe187 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -9,7 +9,7 @@
#include <linux/scatterlist.h>
#include <linux/numa.h>
#include <asm/io.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/x86_init.h>
struct pci_sysdata {
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index ee26e9215f18..29964b0e1075 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -322,17 +322,10 @@ struct perf_guest_switch_msr {
u64 host, guest;
};
-extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr);
extern void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap);
extern void perf_check_microcode(void);
extern int x86_perf_rdpmc_index(struct perf_event *event);
#else
-static inline struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr)
-{
- *nr = 0;
- return NULL;
-}
-
static inline void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap)
{
memset(cap, 0, sizeof(*cap));
@@ -342,8 +335,23 @@ static inline void perf_events_lapic_init(void) { }
static inline void perf_check_microcode(void) { }
#endif
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL)
+extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr);
+#else
+static inline struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr)
+{
+ *nr = 0;
+ return NULL;
+}
+#endif
+
#ifdef CONFIG_CPU_SUP_INTEL
extern void intel_pt_handle_vmx(int on);
+#else
+static inline void intel_pt_handle_vmx(int on)
+{
+
+}
#endif
#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD)
diff --git a/arch/x86/include/asm/pgtable_32_areas.h b/arch/x86/include/asm/pgtable_32_areas.h
new file mode 100644
index 000000000000..b6355416a15a
--- /dev/null
+++ b/arch/x86/include/asm/pgtable_32_areas.h
@@ -0,0 +1,53 @@
+#ifndef _ASM_X86_PGTABLE_32_AREAS_H
+#define _ASM_X86_PGTABLE_32_AREAS_H
+
+#include <asm/cpu_entry_area.h>
+
+/*
+ * Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8MB value just means that there will be a 8MB "hole" after the
+ * physical memory until the kernel virtual memory starts. That means that
+ * any out-of-bounds memory accesses will hopefully be caught.
+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced
+ * area for the same reason. ;)
+ */
+#define VMALLOC_OFFSET (8 * 1024 * 1024)
+
+#ifndef __ASSEMBLY__
+extern bool __vmalloc_start_set; /* set once high_memory is set */
+#endif
+
+#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
+#ifdef CONFIG_X86_PAE
+#define LAST_PKMAP 512
+#else
+#define LAST_PKMAP 1024
+#endif
+
+#define CPU_ENTRY_AREA_PAGES (NR_CPUS * DIV_ROUND_UP(sizeof(struct cpu_entry_area), PAGE_SIZE))
+
+/* The +1 is for the readonly IDT page: */
+#define CPU_ENTRY_AREA_BASE \
+ ((FIXADDR_TOT_START - PAGE_SIZE*(CPU_ENTRY_AREA_PAGES+1)) & PMD_MASK)
+
+#define LDT_BASE_ADDR \
+ ((CPU_ENTRY_AREA_BASE - PAGE_SIZE) & PMD_MASK)
+
+#define LDT_END_ADDR (LDT_BASE_ADDR + PMD_SIZE)
+
+#define PKMAP_BASE \
+ ((LDT_BASE_ADDR - PAGE_SIZE) & PMD_MASK)
+
+#ifdef CONFIG_HIGHMEM
+# define VMALLOC_END (PKMAP_BASE - 2 * PAGE_SIZE)
+#else
+# define VMALLOC_END (LDT_BASE_ADDR - 2 * PAGE_SIZE)
+#endif
+
+#define MODULES_VADDR VMALLOC_START
+#define MODULES_END VMALLOC_END
+#define MODULES_LEN (MODULES_VADDR - MODULES_END)
+
+#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
+
+#endif /* _ASM_X86_PGTABLE_32_AREAS_H */
diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
index 0416d42e5bdd..5356a46b0373 100644
--- a/arch/x86/include/asm/pgtable_32_types.h
+++ b/arch/x86/include/asm/pgtable_32_types.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_X86_PGTABLE_32_DEFS_H
-#define _ASM_X86_PGTABLE_32_DEFS_H
+#ifndef _ASM_X86_PGTABLE_32_TYPES_H
+#define _ASM_X86_PGTABLE_32_TYPES_H
/*
* The Linux x86 paging architecture is 'compile-time dual-mode', it
@@ -20,55 +20,4 @@
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
-/* Just any arbitrary offset to the start of the vmalloc VM area: the
- * current 8MB value just means that there will be a 8MB "hole" after the
- * physical memory until the kernel virtual memory starts. That means that
- * any out-of-bounds memory accesses will hopefully be caught.
- * The vmalloc() routines leaves a hole of 4kB between each vmalloced
- * area for the same reason. ;)
- */
-#define VMALLOC_OFFSET (8 * 1024 * 1024)
-
-#ifndef __ASSEMBLY__
-extern bool __vmalloc_start_set; /* set once high_memory is set */
-#endif
-
-#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
-#ifdef CONFIG_X86_PAE
-#define LAST_PKMAP 512
-#else
-#define LAST_PKMAP 1024
-#endif
-
-/*
- * This is an upper bound on sizeof(struct cpu_entry_area) / PAGE_SIZE.
- * Define this here and validate with BUILD_BUG_ON() in cpu_entry_area.c
- * to avoid include recursion hell.
- */
-#define CPU_ENTRY_AREA_PAGES (NR_CPUS * 43)
-
-/* The +1 is for the readonly IDT page: */
-#define CPU_ENTRY_AREA_BASE \
- ((FIXADDR_TOT_START - PAGE_SIZE*(CPU_ENTRY_AREA_PAGES+1)) & PMD_MASK)
-
-#define LDT_BASE_ADDR \
- ((CPU_ENTRY_AREA_BASE - PAGE_SIZE) & PMD_MASK)
-
-#define LDT_END_ADDR (LDT_BASE_ADDR + PMD_SIZE)
-
-#define PKMAP_BASE \
- ((LDT_BASE_ADDR - PAGE_SIZE) & PMD_MASK)
-
-#ifdef CONFIG_HIGHMEM
-# define VMALLOC_END (PKMAP_BASE - 2 * PAGE_SIZE)
-#else
-# define VMALLOC_END (LDT_BASE_ADDR - 2 * PAGE_SIZE)
-#endif
-
-#define MODULES_VADDR VMALLOC_START
-#define MODULES_END VMALLOC_END
-#define MODULES_LEN (MODULES_VADDR - MODULES_END)
-
-#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
-
-#endif /* _ASM_X86_PGTABLE_32_DEFS_H */
+#endif /* _ASM_X86_PGTABLE_32_TYPES_H */
diff --git a/arch/x86/include/asm/pgtable_areas.h b/arch/x86/include/asm/pgtable_areas.h
new file mode 100644
index 000000000000..d34cce1b995c
--- /dev/null
+++ b/arch/x86/include/asm/pgtable_areas.h
@@ -0,0 +1,16 @@
+#ifndef _ASM_X86_PGTABLE_AREAS_H
+#define _ASM_X86_PGTABLE_AREAS_H
+
+#ifdef CONFIG_X86_32
+# include <asm/pgtable_32_areas.h>
+#endif
+
+/* Single page reserved for the readonly IDT mapping: */
+#define CPU_ENTRY_AREA_RO_IDT CPU_ENTRY_AREA_BASE
+#define CPU_ENTRY_AREA_PER_CPU (CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
+
+#define CPU_ENTRY_AREA_RO_IDT_VADDR ((void *)CPU_ENTRY_AREA_RO_IDT)
+
+#define CPU_ENTRY_AREA_MAP_SIZE (CPU_ENTRY_AREA_PER_CPU + CPU_ENTRY_AREA_ARRAY_SIZE - CPU_ENTRY_AREA_BASE)
+
+#endif /* _ASM_X86_PGTABLE_AREAS_H */
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index b5e49e6bac63..ea7400726d7a 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -110,11 +110,6 @@
#define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
-#define _PAGE_TABLE_NOENC (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER |\
- _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _KERNPG_TABLE_NOENC (_PAGE_PRESENT | _PAGE_RW | \
- _PAGE_ACCESSED | _PAGE_DIRTY)
-
/*
* Set of bits not changed in pte_modify. The pte's
* protection key is treated like _PAGE_RW, for
@@ -136,80 +131,93 @@
*/
#ifndef __ASSEMBLY__
enum page_cache_mode {
- _PAGE_CACHE_MODE_WB = 0,
- _PAGE_CACHE_MODE_WC = 1,
+ _PAGE_CACHE_MODE_WB = 0,
+ _PAGE_CACHE_MODE_WC = 1,
_PAGE_CACHE_MODE_UC_MINUS = 2,
- _PAGE_CACHE_MODE_UC = 3,
- _PAGE_CACHE_MODE_WT = 4,
- _PAGE_CACHE_MODE_WP = 5,
- _PAGE_CACHE_MODE_NUM = 8
+ _PAGE_CACHE_MODE_UC = 3,
+ _PAGE_CACHE_MODE_WT = 4,
+ _PAGE_CACHE_MODE_WP = 5,
+
+ _PAGE_CACHE_MODE_NUM = 8
};
#endif
-#define _PAGE_CACHE_MASK (_PAGE_PAT | _PAGE_PCD | _PAGE_PWT)
-#define _PAGE_NOCACHE (cachemode2protval(_PAGE_CACHE_MODE_UC))
-#define _PAGE_CACHE_WP (cachemode2protval(_PAGE_CACHE_MODE_WP))
+#define _PAGE_ENC (_AT(pteval_t, sme_me_mask))
-#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
-#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_NX)
-
-#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | _PAGE_RW | \
- _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_COPY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED)
-#define PAGE_COPY PAGE_COPY_NOEXEC
-#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED)
-
-#define __PAGE_KERNEL_EXEC \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
-#define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
-
-#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
-#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
-#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_NOCACHE)
-#define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER)
-#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-#define __PAGE_KERNEL_WP (__PAGE_KERNEL | _PAGE_CACHE_WP)
-
-#define __PAGE_KERNEL_IO (__PAGE_KERNEL)
-#define __PAGE_KERNEL_IO_NOCACHE (__PAGE_KERNEL_NOCACHE)
+#define _PAGE_CACHE_MASK (_PAGE_PWT | _PAGE_PCD | _PAGE_PAT)
-#ifndef __ASSEMBLY__
+#define _PAGE_NOCACHE (cachemode2protval(_PAGE_CACHE_MODE_UC))
+#define _PAGE_CACHE_WP (cachemode2protval(_PAGE_CACHE_MODE_WP))
-#define _PAGE_ENC (_AT(pteval_t, sme_me_mask))
+#define __PP _PAGE_PRESENT
+#define __RW _PAGE_RW
+#define _USR _PAGE_USER
+#define ___A _PAGE_ACCESSED
+#define ___D _PAGE_DIRTY
+#define ___G _PAGE_GLOBAL
+#define __NX _PAGE_NX
+
+#define _ENC _PAGE_ENC
+#define __WP _PAGE_CACHE_WP
+#define __NC _PAGE_NOCACHE
+#define _PSE _PAGE_PSE
+
+#define pgprot_val(x) ((x).pgprot)
+#define __pgprot(x) ((pgprot_t) { (x) } )
+#define __pg(x) __pgprot(x)
+
+#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
+
+#define PAGE_NONE __pg( 0| 0| 0|___A| 0| 0| 0|___G)
+#define PAGE_SHARED __pg(__PP|__RW|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_SHARED_EXEC __pg(__PP|__RW|_USR|___A| 0| 0| 0| 0)
+#define PAGE_COPY_NOEXEC __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_COPY_EXEC __pg(__PP| 0|_USR|___A| 0| 0| 0| 0)
+#define PAGE_COPY __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_READONLY __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_READONLY_EXEC __pg(__PP| 0|_USR|___A| 0| 0| 0| 0)
+
+#define __PAGE_KERNEL (__PP|__RW| 0|___A|__NX|___D| 0|___G)
+#define __PAGE_KERNEL_EXEC (__PP|__RW| 0|___A| 0|___D| 0|___G)
+#define _KERNPG_TABLE_NOENC (__PP|__RW| 0|___A| 0|___D| 0| 0)
+#define _KERNPG_TABLE (__PP|__RW| 0|___A| 0|___D| 0| 0| _ENC)
+#define _PAGE_TABLE_NOENC (__PP|__RW|_USR|___A| 0|___D| 0| 0)
+#define _PAGE_TABLE (__PP|__RW|_USR|___A| 0|___D| 0| 0| _ENC)
+#define __PAGE_KERNEL_RO (__PP| 0| 0|___A|__NX|___D| 0|___G)
+#define __PAGE_KERNEL_RX (__PP| 0| 0|___A| 0|___D| 0|___G)
+#define __PAGE_KERNEL_NOCACHE (__PP|__RW| 0|___A|__NX|___D| 0|___G| __NC)
+#define __PAGE_KERNEL_VVAR (__PP| 0|_USR|___A|__NX|___D| 0|___G)
+#define __PAGE_KERNEL_LARGE (__PP|__RW| 0|___A|__NX|___D|_PSE|___G)
+#define __PAGE_KERNEL_LARGE_EXEC (__PP|__RW| 0|___A| 0|___D|_PSE|___G)
+#define __PAGE_KERNEL_WP (__PP|__RW| 0|___A|__NX|___D| 0|___G| __WP)
+
+
+#define __PAGE_KERNEL_IO __PAGE_KERNEL
+#define __PAGE_KERNEL_IO_NOCACHE __PAGE_KERNEL_NOCACHE
-#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
- _PAGE_DIRTY | _PAGE_ENC)
-#define _PAGE_TABLE (_KERNPG_TABLE | _PAGE_USER)
-#define __PAGE_KERNEL_ENC (__PAGE_KERNEL | _PAGE_ENC)
-#define __PAGE_KERNEL_ENC_WP (__PAGE_KERNEL_WP | _PAGE_ENC)
+#ifndef __ASSEMBLY__
-#define __PAGE_KERNEL_NOENC (__PAGE_KERNEL)
-#define __PAGE_KERNEL_NOENC_WP (__PAGE_KERNEL_WP)
+#define __PAGE_KERNEL_ENC (__PAGE_KERNEL | _ENC)
+#define __PAGE_KERNEL_ENC_WP (__PAGE_KERNEL_WP | _ENC)
+#define __PAGE_KERNEL_NOENC (__PAGE_KERNEL | 0)
+#define __PAGE_KERNEL_NOENC_WP (__PAGE_KERNEL_WP | 0)
-#define default_pgprot(x) __pgprot((x) & __default_kernel_pte_mask)
+#define __pgprot_mask(x) __pgprot((x) & __default_kernel_pte_mask)
-#define PAGE_KERNEL default_pgprot(__PAGE_KERNEL | _PAGE_ENC)
-#define PAGE_KERNEL_NOENC default_pgprot(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO default_pgprot(__PAGE_KERNEL_RO | _PAGE_ENC)
-#define PAGE_KERNEL_EXEC default_pgprot(__PAGE_KERNEL_EXEC | _PAGE_ENC)
-#define PAGE_KERNEL_EXEC_NOENC default_pgprot(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RX default_pgprot(__PAGE_KERNEL_RX | _PAGE_ENC)
-#define PAGE_KERNEL_NOCACHE default_pgprot(__PAGE_KERNEL_NOCACHE | _PAGE_ENC)
-#define PAGE_KERNEL_LARGE default_pgprot(__PAGE_KERNEL_LARGE | _PAGE_ENC)
-#define PAGE_KERNEL_LARGE_EXEC default_pgprot(__PAGE_KERNEL_LARGE_EXEC | _PAGE_ENC)
-#define PAGE_KERNEL_VVAR default_pgprot(__PAGE_KERNEL_VVAR | _PAGE_ENC)
+#define PAGE_KERNEL __pgprot_mask(__PAGE_KERNEL | _ENC)
+#define PAGE_KERNEL_NOENC __pgprot_mask(__PAGE_KERNEL | 0)
+#define PAGE_KERNEL_RO __pgprot_mask(__PAGE_KERNEL_RO | _ENC)
+#define PAGE_KERNEL_EXEC __pgprot_mask(__PAGE_KERNEL_EXEC | _ENC)
+#define PAGE_KERNEL_EXEC_NOENC __pgprot_mask(__PAGE_KERNEL_EXEC | 0)
+#define PAGE_KERNEL_RX __pgprot_mask(__PAGE_KERNEL_RX | _ENC)
+#define PAGE_KERNEL_NOCACHE __pgprot_mask(__PAGE_KERNEL_NOCACHE | _ENC)
+#define PAGE_KERNEL_LARGE __pgprot_mask(__PAGE_KERNEL_LARGE | _ENC)
+#define PAGE_KERNEL_LARGE_EXEC __pgprot_mask(__PAGE_KERNEL_LARGE_EXEC | _ENC)
+#define PAGE_KERNEL_VVAR __pgprot_mask(__PAGE_KERNEL_VVAR | _ENC)
-#define PAGE_KERNEL_IO default_pgprot(__PAGE_KERNEL_IO)
-#define PAGE_KERNEL_IO_NOCACHE default_pgprot(__PAGE_KERNEL_IO_NOCACHE)
+#define PAGE_KERNEL_IO __pgprot_mask(__PAGE_KERNEL_IO)
+#define PAGE_KERNEL_IO_NOCACHE __pgprot_mask(__PAGE_KERNEL_IO_NOCACHE)
#endif /* __ASSEMBLY__ */
@@ -449,9 +457,6 @@ static inline pteval_t pte_flags(pte_t pte)
return native_pte_val(pte) & PTE_FLAGS_MASK;
}
-#define pgprot_val(x) ((x).pgprot)
-#define __pgprot(x) ((pgprot_t) { (x) } )
-
extern uint16_t __cachemode2pte_tbl[_PAGE_CACHE_MODE_NUM];
extern uint8_t __pte2cachemode_tbl[8];
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 0340aad3f2fc..6fb4870ed759 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -25,6 +25,7 @@ struct vm86;
#include <asm/special_insns.h>
#include <asm/fpu/types.h>
#include <asm/unwind_hints.h>
+#include <asm/vmxfeatures.h>
#include <linux/personality.h>
#include <linux/cache.h>
@@ -85,6 +86,9 @@ struct cpuinfo_x86 {
/* Number of 4K pages in DTLB/ITLB combined(in pages): */
int x86_tlbsize;
#endif
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+ __u32 vmx_capability[NVMXINTS];
+#endif
__u8 x86_virt_bits;
__u8 x86_phys_bits;
/* CPUID returned core id bits: */
@@ -1015,11 +1019,4 @@ enum mds_mitigations {
MDS_MITIGATION_VMWERV,
};
-enum taa_mitigations {
- TAA_MITIGATION_OFF,
- TAA_MITIGATION_UCODE_NEEDED,
- TAA_MITIGATION_VERW,
- TAA_MITIGATION_TSX_DISABLED,
-};
-
#endif /* _ASM_X86_PROCESSOR_H */
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 5057a8ed100b..6d6475fdd327 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -159,6 +159,19 @@ static inline bool user_64bit_mode(struct pt_regs *regs)
#endif
}
+/*
+ * Determine whether the register set came from any context that is running in
+ * 64-bit mode.
+ */
+static inline bool any_64bit_mode(struct pt_regs *regs)
+{
+#ifdef CONFIG_X86_64
+ return !user_mode(regs) || user_64bit_mode(regs);
+#else
+ return false;
+#endif
+}
+
#ifdef CONFIG_X86_64
#define current_user_stack_pointer() current_pt_regs()->sp
#define compat_user_stack_pointer() current_pt_regs()->sp
@@ -339,22 +352,6 @@ static inline unsigned long regs_get_kernel_argument(struct pt_regs *regs,
#define ARCH_HAS_USER_SINGLE_STEP_REPORT
-/*
- * When hitting ptrace_stop(), we cannot return using SYSRET because
- * that does not restore the full CPU state, only a minimal set. The
- * ptracer can change arbitrary register values, which is usually okay
- * because the usual ptrace stops run off the signal delivery path which
- * forces IRET; however, ptrace_event() stops happen in arbitrary places
- * in the kernel and don't force IRET path.
- *
- * So force IRET path after a ptrace stop.
- */
-#define arch_ptrace_stop_needed(code, info) \
-({ \
- force_iret(); \
- false; \
-})
-
struct user_desc;
extern int do_get_thread_area(struct task_struct *p, int idx,
struct user_desc __user *info);
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 09ecc32f6524..b35030eeec36 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -14,7 +14,7 @@
#include <linux/types.h>
#include <asm/io.h>
-/* This must match data at realmode.S */
+/* This must match data at realmode/rm/header.S */
struct real_mode_header {
u32 text_start;
u32 ro_end;
@@ -36,7 +36,7 @@ struct real_mode_header {
#endif
};
-/* This must match data at trampoline_32/64.S */
+/* This must match data at realmode/rm/trampoline_{32,64}.S */
struct trampoline_header {
#ifdef CONFIG_X86_32
u32 start;
diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h
index 2ee8e469dcf5..64c3dce374e5 100644
--- a/arch/x86/include/asm/set_memory.h
+++ b/arch/x86/include/asm/set_memory.h
@@ -81,8 +81,6 @@ int set_direct_map_invalid_noflush(struct page *page);
int set_direct_map_default_noflush(struct page *page);
extern int kernel_set_to_readonly;
-void set_kernel_text_rw(void);
-void set_kernel_text_ro(void);
#ifdef CONFIG_X86_64
static inline int set_mce_nospec(unsigned long pfn)
diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h
index 23c626a742e8..67315fa3956a 100644
--- a/arch/x86/include/asm/text-patching.h
+++ b/arch/x86/include/asm/text-patching.h
@@ -25,14 +25,6 @@ static inline void apply_paravirt(struct paravirt_patch_site *start,
*/
#define POKE_MAX_OPCODE_SIZE 5
-struct text_poke_loc {
- void *addr;
- int len;
- s32 rel32;
- u8 opcode;
- const u8 text[POKE_MAX_OPCODE_SIZE];
-};
-
extern void text_poke_early(void *addr, const void *opcode, size_t len);
/*
@@ -50,21 +42,13 @@ extern void text_poke_early(void *addr, const void *opcode, size_t len);
* an inconsistent instruction while you patch.
*/
extern void *text_poke(void *addr, const void *opcode, size_t len);
+extern void text_poke_sync(void);
extern void *text_poke_kgdb(void *addr, const void *opcode, size_t len);
extern int poke_int3_handler(struct pt_regs *regs);
extern void text_poke_bp(void *addr, const void *opcode, size_t len, const void *emulate);
-extern void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries);
-extern void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
- const void *opcode, size_t len, const void *emulate);
-extern int after_bootmem;
-extern __ro_after_init struct mm_struct *poking_mm;
-extern __ro_after_init unsigned long poking_addr;
-#ifndef CONFIG_UML_X86
-static inline void int3_emulate_jmp(struct pt_regs *regs, unsigned long ip)
-{
- regs->ip = ip;
-}
+extern void text_poke_queue(void *addr, const void *opcode, size_t len, const void *emulate);
+extern void text_poke_finish(void);
#define INT3_INSN_SIZE 1
#define INT3_INSN_OPCODE 0xCC
@@ -78,6 +62,67 @@ static inline void int3_emulate_jmp(struct pt_regs *regs, unsigned long ip)
#define JMP8_INSN_SIZE 2
#define JMP8_INSN_OPCODE 0xEB
+#define DISP32_SIZE 4
+
+static inline int text_opcode_size(u8 opcode)
+{
+ int size = 0;
+
+#define __CASE(insn) \
+ case insn##_INSN_OPCODE: size = insn##_INSN_SIZE; break
+
+ switch(opcode) {
+ __CASE(INT3);
+ __CASE(CALL);
+ __CASE(JMP32);
+ __CASE(JMP8);
+ }
+
+#undef __CASE
+
+ return size;
+}
+
+union text_poke_insn {
+ u8 text[POKE_MAX_OPCODE_SIZE];
+ struct {
+ u8 opcode;
+ s32 disp;
+ } __attribute__((packed));
+};
+
+static __always_inline
+void *text_gen_insn(u8 opcode, const void *addr, const void *dest)
+{
+ static union text_poke_insn insn; /* per instance */
+ int size = text_opcode_size(opcode);
+
+ insn.opcode = opcode;
+
+ if (size > 1) {
+ insn.disp = (long)dest - (long)(addr + size);
+ if (size == 2) {
+ /*
+ * Ensure that for JMP9 the displacement
+ * actually fits the signed byte.
+ */
+ BUG_ON((insn.disp >> 31) != (insn.disp >> 7));
+ }
+ }
+
+ return &insn.text;
+}
+
+extern int after_bootmem;
+extern __ro_after_init struct mm_struct *poking_mm;
+extern __ro_after_init unsigned long poking_addr;
+
+#ifndef CONFIG_UML_X86
+static inline void int3_emulate_jmp(struct pt_regs *regs, unsigned long ip)
+{
+ regs->ip = ip;
+}
+
static inline void int3_emulate_push(struct pt_regs *regs, unsigned long val)
{
/*
@@ -85,6 +130,9 @@ static inline void int3_emulate_push(struct pt_regs *regs, unsigned long val)
* stack where the break point happened, and the saving of
* pt_regs. We can extend the original stack because of
* this gap. See the idtentry macro's create_gap option.
+ *
+ * Similarly entry_32.S will have a gap on the stack for (any) hardware
+ * exception and pt_regs; see FIXUP_FRAME.
*/
regs->sp -= sizeof(unsigned long);
*(unsigned long *)regs->sp = val;
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index d779366ce3f8..cf4327986e98 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -239,15 +239,6 @@ static inline int arch_within_stack_frames(const void * const stack,
current_thread_info()->status & TS_COMPAT)
#endif
-/*
- * Force syscall return via IRET by making it look as if there was
- * some work pending. IRET is our most capable (but slowest) syscall
- * return path, which is able to restore modified SS, CS and certain
- * EFLAGS values that other (fast) syscall return instructions
- * are not able to restore properly.
- */
-#define force_iret() set_thread_flag(TIF_NOTIFY_RESUME)
-
extern void arch_task_cache_init(void);
extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
extern void arch_release_task_struct(struct task_struct *tsk);
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
index 230474e2ddb5..bbcdc7b8f963 100644
--- a/arch/x86/include/asm/vdso.h
+++ b/arch/x86/include/asm/vdso.h
@@ -21,6 +21,7 @@ struct vdso_image {
long sym_vvar_page;
long sym_pvclock_page;
long sym_hvclock_page;
+ long sym_timens_page;
long sym_VDSO32_NOTE_MASK;
long sym___kernel_sigreturn;
long sym___kernel_rt_sigreturn;
diff --git a/arch/x86/include/asm/vdso/gettimeofday.h b/arch/x86/include/asm/vdso/gettimeofday.h
index e9ee139cf29e..6ee1f7dba34b 100644
--- a/arch/x86/include/asm/vdso/gettimeofday.h
+++ b/arch/x86/include/asm/vdso/gettimeofday.h
@@ -21,6 +21,7 @@
#include <clocksource/hyperv_timer.h>
#define __vdso_data (VVAR(_vdso_data))
+#define __timens_vdso_data (TIMENS(_vdso_data))
#define VDSO_HAS_TIME 1
@@ -56,6 +57,13 @@ extern struct ms_hyperv_tsc_page hvclock_page
__attribute__((visibility("hidden")));
#endif
+#ifdef CONFIG_TIME_NS
+static __always_inline const struct vdso_data *__arch_get_timens_vdso_data(void)
+{
+ return __timens_vdso_data;
+}
+#endif
+
#ifndef BUILD_VDSO32
static __always_inline
@@ -96,8 +104,6 @@ long clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
#else
-#define VDSO_HAS_32BIT_FALLBACK 1
-
static __always_inline
long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
{
diff --git a/arch/x86/include/asm/vmalloc.h b/arch/x86/include/asm/vmalloc.h
new file mode 100644
index 000000000000..29837740b520
--- /dev/null
+++ b/arch/x86/include/asm/vmalloc.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_X86_VMALLOC_H
+#define _ASM_X86_VMALLOC_H
+
+#include <asm/pgtable_areas.h>
+
+#endif /* _ASM_X86_VMALLOC_H */
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 1835767aa335..9fbba31be825 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -15,67 +15,70 @@
#include <linux/bitops.h>
#include <linux/types.h>
#include <uapi/asm/vmx.h>
+#include <asm/vmxfeatures.h>
+
+#define VMCS_CONTROL_BIT(x) BIT(VMX_FEATURE_##x & 0x1f)
/*
* Definitions of Primary Processor-Based VM-Execution Controls.
*/
-#define CPU_BASED_VIRTUAL_INTR_PENDING 0x00000004
-#define CPU_BASED_USE_TSC_OFFSETING 0x00000008
-#define CPU_BASED_HLT_EXITING 0x00000080
-#define CPU_BASED_INVLPG_EXITING 0x00000200
-#define CPU_BASED_MWAIT_EXITING 0x00000400
-#define CPU_BASED_RDPMC_EXITING 0x00000800
-#define CPU_BASED_RDTSC_EXITING 0x00001000
-#define CPU_BASED_CR3_LOAD_EXITING 0x00008000
-#define CPU_BASED_CR3_STORE_EXITING 0x00010000
-#define CPU_BASED_CR8_LOAD_EXITING 0x00080000
-#define CPU_BASED_CR8_STORE_EXITING 0x00100000
-#define CPU_BASED_TPR_SHADOW 0x00200000
-#define CPU_BASED_VIRTUAL_NMI_PENDING 0x00400000
-#define CPU_BASED_MOV_DR_EXITING 0x00800000
-#define CPU_BASED_UNCOND_IO_EXITING 0x01000000
-#define CPU_BASED_USE_IO_BITMAPS 0x02000000
-#define CPU_BASED_MONITOR_TRAP_FLAG 0x08000000
-#define CPU_BASED_USE_MSR_BITMAPS 0x10000000
-#define CPU_BASED_MONITOR_EXITING 0x20000000
-#define CPU_BASED_PAUSE_EXITING 0x40000000
-#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS 0x80000000
+#define CPU_BASED_VIRTUAL_INTR_PENDING VMCS_CONTROL_BIT(VIRTUAL_INTR_PENDING)
+#define CPU_BASED_USE_TSC_OFFSETING VMCS_CONTROL_BIT(TSC_OFFSETTING)
+#define CPU_BASED_HLT_EXITING VMCS_CONTROL_BIT(HLT_EXITING)
+#define CPU_BASED_INVLPG_EXITING VMCS_CONTROL_BIT(INVLPG_EXITING)
+#define CPU_BASED_MWAIT_EXITING VMCS_CONTROL_BIT(MWAIT_EXITING)
+#define CPU_BASED_RDPMC_EXITING VMCS_CONTROL_BIT(RDPMC_EXITING)
+#define CPU_BASED_RDTSC_EXITING VMCS_CONTROL_BIT(RDTSC_EXITING)
+#define CPU_BASED_CR3_LOAD_EXITING VMCS_CONTROL_BIT(CR3_LOAD_EXITING)
+#define CPU_BASED_CR3_STORE_EXITING VMCS_CONTROL_BIT(CR3_STORE_EXITING)
+#define CPU_BASED_CR8_LOAD_EXITING VMCS_CONTROL_BIT(CR8_LOAD_EXITING)
+#define CPU_BASED_CR8_STORE_EXITING VMCS_CONTROL_BIT(CR8_STORE_EXITING)
+#define CPU_BASED_TPR_SHADOW VMCS_CONTROL_BIT(VIRTUAL_TPR)
+#define CPU_BASED_VIRTUAL_NMI_PENDING VMCS_CONTROL_BIT(VIRTUAL_NMI_PENDING)
+#define CPU_BASED_MOV_DR_EXITING VMCS_CONTROL_BIT(MOV_DR_EXITING)
+#define CPU_BASED_UNCOND_IO_EXITING VMCS_CONTROL_BIT(UNCOND_IO_EXITING)
+#define CPU_BASED_USE_IO_BITMAPS VMCS_CONTROL_BIT(USE_IO_BITMAPS)
+#define CPU_BASED_MONITOR_TRAP_FLAG VMCS_CONTROL_BIT(MONITOR_TRAP_FLAG)
+#define CPU_BASED_USE_MSR_BITMAPS VMCS_CONTROL_BIT(USE_MSR_BITMAPS)
+#define CPU_BASED_MONITOR_EXITING VMCS_CONTROL_BIT(MONITOR_EXITING)
+#define CPU_BASED_PAUSE_EXITING VMCS_CONTROL_BIT(PAUSE_EXITING)
+#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS VMCS_CONTROL_BIT(SEC_CONTROLS)
#define CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x0401e172
/*
* Definitions of Secondary Processor-Based VM-Execution Controls.
*/
-#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
-#define SECONDARY_EXEC_ENABLE_EPT 0x00000002
-#define SECONDARY_EXEC_DESC 0x00000004
-#define SECONDARY_EXEC_RDTSCP 0x00000008
-#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE 0x00000010
-#define SECONDARY_EXEC_ENABLE_VPID 0x00000020
-#define SECONDARY_EXEC_WBINVD_EXITING 0x00000040
-#define SECONDARY_EXEC_UNRESTRICTED_GUEST 0x00000080
-#define SECONDARY_EXEC_APIC_REGISTER_VIRT 0x00000100
-#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY 0x00000200
-#define SECONDARY_EXEC_PAUSE_LOOP_EXITING 0x00000400
-#define SECONDARY_EXEC_RDRAND_EXITING 0x00000800
-#define SECONDARY_EXEC_ENABLE_INVPCID 0x00001000
-#define SECONDARY_EXEC_ENABLE_VMFUNC 0x00002000
-#define SECONDARY_EXEC_SHADOW_VMCS 0x00004000
-#define SECONDARY_EXEC_ENCLS_EXITING 0x00008000
-#define SECONDARY_EXEC_RDSEED_EXITING 0x00010000
-#define SECONDARY_EXEC_ENABLE_PML 0x00020000
-#define SECONDARY_EXEC_PT_CONCEAL_VMX 0x00080000
-#define SECONDARY_EXEC_XSAVES 0x00100000
-#define SECONDARY_EXEC_PT_USE_GPA 0x01000000
-#define SECONDARY_EXEC_MODE_BASED_EPT_EXEC 0x00400000
-#define SECONDARY_EXEC_TSC_SCALING 0x02000000
+#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES VMCS_CONTROL_BIT(VIRT_APIC_ACCESSES)
+#define SECONDARY_EXEC_ENABLE_EPT VMCS_CONTROL_BIT(EPT)
+#define SECONDARY_EXEC_DESC VMCS_CONTROL_BIT(DESC_EXITING)
+#define SECONDARY_EXEC_RDTSCP VMCS_CONTROL_BIT(RDTSCP)
+#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE VMCS_CONTROL_BIT(VIRTUAL_X2APIC)
+#define SECONDARY_EXEC_ENABLE_VPID VMCS_CONTROL_BIT(VPID)
+#define SECONDARY_EXEC_WBINVD_EXITING VMCS_CONTROL_BIT(WBINVD_EXITING)
+#define SECONDARY_EXEC_UNRESTRICTED_GUEST VMCS_CONTROL_BIT(UNRESTRICTED_GUEST)
+#define SECONDARY_EXEC_APIC_REGISTER_VIRT VMCS_CONTROL_BIT(APIC_REGISTER_VIRT)
+#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY VMCS_CONTROL_BIT(VIRT_INTR_DELIVERY)
+#define SECONDARY_EXEC_PAUSE_LOOP_EXITING VMCS_CONTROL_BIT(PAUSE_LOOP_EXITING)
+#define SECONDARY_EXEC_RDRAND_EXITING VMCS_CONTROL_BIT(RDRAND_EXITING)
+#define SECONDARY_EXEC_ENABLE_INVPCID VMCS_CONTROL_BIT(INVPCID)
+#define SECONDARY_EXEC_ENABLE_VMFUNC VMCS_CONTROL_BIT(VMFUNC)
+#define SECONDARY_EXEC_SHADOW_VMCS VMCS_CONTROL_BIT(SHADOW_VMCS)
+#define SECONDARY_EXEC_ENCLS_EXITING VMCS_CONTROL_BIT(ENCLS_EXITING)
+#define SECONDARY_EXEC_RDSEED_EXITING VMCS_CONTROL_BIT(RDSEED_EXITING)
+#define SECONDARY_EXEC_ENABLE_PML VMCS_CONTROL_BIT(PAGE_MOD_LOGGING)
+#define SECONDARY_EXEC_PT_CONCEAL_VMX VMCS_CONTROL_BIT(PT_CONCEAL_VMX)
+#define SECONDARY_EXEC_XSAVES VMCS_CONTROL_BIT(XSAVES)
+#define SECONDARY_EXEC_MODE_BASED_EPT_EXEC VMCS_CONTROL_BIT(MODE_BASED_EPT_EXEC)
+#define SECONDARY_EXEC_PT_USE_GPA VMCS_CONTROL_BIT(PT_USE_GPA)
+#define SECONDARY_EXEC_TSC_SCALING VMCS_CONTROL_BIT(TSC_SCALING)
#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE 0x04000000
-#define PIN_BASED_EXT_INTR_MASK 0x00000001
-#define PIN_BASED_NMI_EXITING 0x00000008
-#define PIN_BASED_VIRTUAL_NMIS 0x00000020
-#define PIN_BASED_VMX_PREEMPTION_TIMER 0x00000040
-#define PIN_BASED_POSTED_INTR 0x00000080
+#define PIN_BASED_EXT_INTR_MASK VMCS_CONTROL_BIT(INTR_EXITING)
+#define PIN_BASED_NMI_EXITING VMCS_CONTROL_BIT(NMI_EXITING)
+#define PIN_BASED_VIRTUAL_NMIS VMCS_CONTROL_BIT(VIRTUAL_NMIS)
+#define PIN_BASED_VMX_PREEMPTION_TIMER VMCS_CONTROL_BIT(PREEMPTION_TIMER)
+#define PIN_BASED_POSTED_INTR VMCS_CONTROL_BIT(POSTED_INTR)
#define PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x00000016
@@ -114,7 +117,9 @@
#define VMX_MISC_MSR_LIST_MULTIPLIER 512
/* VMFUNC functions */
-#define VMX_VMFUNC_EPTP_SWITCHING 0x00000001
+#define VMFUNC_CONTROL_BIT(x) BIT((VMX_FEATURE_##x & 0x1f) - 28)
+
+#define VMX_VMFUNC_EPTP_SWITCHING VMFUNC_CONTROL_BIT(EPTP_SWITCHING)
#define VMFUNC_EPTP_ENTRIES 512
static inline u32 vmx_basic_vmcs_revision_id(u64 vmx_basic)
diff --git a/arch/x86/include/asm/vmxfeatures.h b/arch/x86/include/asm/vmxfeatures.h
new file mode 100644
index 000000000000..0d04d8bf15a5
--- /dev/null
+++ b/arch/x86/include/asm/vmxfeatures.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_VMXFEATURES_H
+#define _ASM_X86_VMXFEATURES_H
+
+/*
+ * Defines VMX CPU feature bits
+ */
+#define NVMXINTS 3 /* N 32-bit words worth of info */
+
+/*
+ * Note: If the comment begins with a quoted string, that string is used
+ * in /proc/cpuinfo instead of the macro name. If the string is "",
+ * this feature bit is not displayed in /proc/cpuinfo at all.
+ */
+
+/* Pin-Based VM-Execution Controls, EPT/VPID, APIC and VM-Functions, word 0 */
+#define VMX_FEATURE_INTR_EXITING ( 0*32+ 0) /* "" VM-Exit on vectored interrupts */
+#define VMX_FEATURE_NMI_EXITING ( 0*32+ 3) /* "" VM-Exit on NMIs */
+#define VMX_FEATURE_VIRTUAL_NMIS ( 0*32+ 5) /* "vnmi" NMI virtualization */
+#define VMX_FEATURE_PREEMPTION_TIMER ( 0*32+ 6) /* VMX Preemption Timer */
+#define VMX_FEATURE_POSTED_INTR ( 0*32+ 7) /* Posted Interrupts */
+
+/* EPT/VPID features, scattered to bits 16-23 */
+#define VMX_FEATURE_INVVPID ( 0*32+ 16) /* INVVPID is supported */
+#define VMX_FEATURE_EPT_EXECUTE_ONLY ( 0*32+ 17) /* "ept_x_only" EPT entries can be execute only */
+#define VMX_FEATURE_EPT_AD ( 0*32+ 18) /* EPT Accessed/Dirty bits */
+#define VMX_FEATURE_EPT_1GB ( 0*32+ 19) /* 1GB EPT pages */
+
+/* Aggregated APIC features 24-27 */
+#define VMX_FEATURE_FLEXPRIORITY ( 0*32+ 24) /* TPR shadow + virt APIC */
+#define VMX_FEATURE_APICV ( 0*32+ 25) /* TPR shadow + APIC reg virt + virt intr delivery + posted interrupts */
+
+/* VM-Functions, shifted to bits 28-31 */
+#define VMX_FEATURE_EPTP_SWITCHING ( 0*32+ 28) /* EPTP switching (in guest) */
+
+/* Primary Processor-Based VM-Execution Controls, word 1 */
+#define VMX_FEATURE_VIRTUAL_INTR_PENDING ( 1*32+ 2) /* "" VM-Exit if INTRs are unblocked in guest */
+#define VMX_FEATURE_TSC_OFFSETTING ( 1*32+ 3) /* "tsc_offset" Offset hardware TSC when read in guest */
+#define VMX_FEATURE_HLT_EXITING ( 1*32+ 7) /* "" VM-Exit on HLT */
+#define VMX_FEATURE_INVLPG_EXITING ( 1*32+ 9) /* "" VM-Exit on INVLPG */
+#define VMX_FEATURE_MWAIT_EXITING ( 1*32+ 10) /* "" VM-Exit on MWAIT */
+#define VMX_FEATURE_RDPMC_EXITING ( 1*32+ 11) /* "" VM-Exit on RDPMC */
+#define VMX_FEATURE_RDTSC_EXITING ( 1*32+ 12) /* "" VM-Exit on RDTSC */
+#define VMX_FEATURE_CR3_LOAD_EXITING ( 1*32+ 15) /* "" VM-Exit on writes to CR3 */
+#define VMX_FEATURE_CR3_STORE_EXITING ( 1*32+ 16) /* "" VM-Exit on reads from CR3 */
+#define VMX_FEATURE_CR8_LOAD_EXITING ( 1*32+ 19) /* "" VM-Exit on writes to CR8 */
+#define VMX_FEATURE_CR8_STORE_EXITING ( 1*32+ 20) /* "" VM-Exit on reads from CR8 */
+#define VMX_FEATURE_VIRTUAL_TPR ( 1*32+ 21) /* "vtpr" TPR virtualization, a.k.a. TPR shadow */
+#define VMX_FEATURE_VIRTUAL_NMI_PENDING ( 1*32+ 22) /* "" VM-Exit if NMIs are unblocked in guest */
+#define VMX_FEATURE_MOV_DR_EXITING ( 1*32+ 23) /* "" VM-Exit on accesses to debug registers */
+#define VMX_FEATURE_UNCOND_IO_EXITING ( 1*32+ 24) /* "" VM-Exit on *all* IN{S} and OUT{S}*/
+#define VMX_FEATURE_USE_IO_BITMAPS ( 1*32+ 25) /* "" VM-Exit based on I/O port */
+#define VMX_FEATURE_MONITOR_TRAP_FLAG ( 1*32+ 27) /* "mtf" VMX single-step VM-Exits */
+#define VMX_FEATURE_USE_MSR_BITMAPS ( 1*32+ 28) /* "" VM-Exit based on MSR index */
+#define VMX_FEATURE_MONITOR_EXITING ( 1*32+ 29) /* "" VM-Exit on MONITOR (MWAIT's accomplice) */
+#define VMX_FEATURE_PAUSE_EXITING ( 1*32+ 30) /* "" VM-Exit on PAUSE (unconditionally) */
+#define VMX_FEATURE_SEC_CONTROLS ( 1*32+ 31) /* "" Enable Secondary VM-Execution Controls */
+
+/* Secondary Processor-Based VM-Execution Controls, word 2 */
+#define VMX_FEATURE_VIRT_APIC_ACCESSES ( 2*32+ 0) /* "vapic" Virtualize memory mapped APIC accesses */
+#define VMX_FEATURE_EPT ( 2*32+ 1) /* Extended Page Tables, a.k.a. Two-Dimensional Paging */
+#define VMX_FEATURE_DESC_EXITING ( 2*32+ 2) /* "" VM-Exit on {S,L}*DT instructions */
+#define VMX_FEATURE_RDTSCP ( 2*32+ 3) /* "" Enable RDTSCP in guest */
+#define VMX_FEATURE_VIRTUAL_X2APIC ( 2*32+ 4) /* "" Virtualize X2APIC for the guest */
+#define VMX_FEATURE_VPID ( 2*32+ 5) /* Virtual Processor ID (TLB ASID modifier) */
+#define VMX_FEATURE_WBINVD_EXITING ( 2*32+ 6) /* "" VM-Exit on WBINVD */
+#define VMX_FEATURE_UNRESTRICTED_GUEST ( 2*32+ 7) /* Allow Big Real Mode and other "invalid" states */
+#define VMX_FEATURE_APIC_REGISTER_VIRT ( 2*32+ 8) /* "vapic_reg" Hardware emulation of reads to the virtual-APIC */
+#define VMX_FEATURE_VIRT_INTR_DELIVERY ( 2*32+ 9) /* "vid" Evaluation and delivery of pending virtual interrupts */
+#define VMX_FEATURE_PAUSE_LOOP_EXITING ( 2*32+ 10) /* "ple" Conditionally VM-Exit on PAUSE at CPL0 */
+#define VMX_FEATURE_RDRAND_EXITING ( 2*32+ 11) /* "" VM-Exit on RDRAND*/
+#define VMX_FEATURE_INVPCID ( 2*32+ 12) /* "" Enable INVPCID in guest */
+#define VMX_FEATURE_VMFUNC ( 2*32+ 13) /* "" Enable VM-Functions (leaf dependent) */
+#define VMX_FEATURE_SHADOW_VMCS ( 2*32+ 14) /* VMREAD/VMWRITE in guest can access shadow VMCS */
+#define VMX_FEATURE_ENCLS_EXITING ( 2*32+ 15) /* "" VM-Exit on ENCLS (leaf dependent) */
+#define VMX_FEATURE_RDSEED_EXITING ( 2*32+ 16) /* "" VM-Exit on RDSEED */
+#define VMX_FEATURE_PAGE_MOD_LOGGING ( 2*32+ 17) /* "pml" Log dirty pages into buffer */
+#define VMX_FEATURE_EPT_VIOLATION_VE ( 2*32+ 18) /* "" Conditionally reflect EPT violations as #VE exceptions */
+#define VMX_FEATURE_PT_CONCEAL_VMX ( 2*32+ 19) /* "" Suppress VMX indicators in Processor Trace */
+#define VMX_FEATURE_XSAVES ( 2*32+ 20) /* "" Enable XSAVES and XRSTORS in guest */
+#define VMX_FEATURE_MODE_BASED_EPT_EXEC ( 2*32+ 22) /* "ept_mode_based_exec" Enable separate EPT EXEC bits for supervisor vs. user */
+#define VMX_FEATURE_PT_USE_GPA ( 2*32+ 24) /* "" Processor Trace logs GPAs */
+#define VMX_FEATURE_TSC_SCALING ( 2*32+ 25) /* Scale hardware TSC when read in guest */
+#define VMX_FEATURE_ENCLV_EXITING ( 2*32+ 28) /* "" VM-Exit on ENCLV (leaf dependent) */
+
+#endif /* _ASM_X86_VMXFEATURES_H */
diff --git a/arch/x86/include/asm/vvar.h b/arch/x86/include/asm/vvar.h
index 32f5d9a0b90e..183e98e49ab9 100644
--- a/arch/x86/include/asm/vvar.h
+++ b/arch/x86/include/asm/vvar.h
@@ -19,10 +19,10 @@
#ifndef _ASM_X86_VVAR_H
#define _ASM_X86_VVAR_H
-#if defined(__VVAR_KERNEL_LDS)
-
-/* The kernel linker script defines its own magic to put vvars in the
- * right place.
+#ifdef EMIT_VVAR
+/*
+ * EMIT_VVAR() is used by the kernel linker script to put vvars in the
+ * right place. Also, it's used by kernel code to import offsets values.
*/
#define DECLARE_VVAR(offset, type, name) \
EMIT_VVAR(name, offset)
@@ -33,9 +33,12 @@ extern char __vvar_page;
#define DECLARE_VVAR(offset, type, name) \
extern type vvar_ ## name[CS_BASES] \
- __attribute__((visibility("hidden")));
+ __attribute__((visibility("hidden"))); \
+ extern type timens_ ## name[CS_BASES] \
+ __attribute__((visibility("hidden"))); \
#define VVAR(name) (vvar_ ## name)
+#define TIMENS(name) (timens_ ## name)
#define DEFINE_VVAR(type, name) \
type name[CS_BASES] \
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index ca13851f0570..26b7256f590f 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -27,6 +27,17 @@ static char temp_stack[4096];
#endif
/**
+ * acpi_get_wakeup_address - provide physical address for S3 wakeup
+ *
+ * Returns the physical address where the kernel should be resumed after the
+ * system awakes from S3, e.g. for programming into the firmware waking vector.
+ */
+unsigned long acpi_get_wakeup_address(void)
+{
+ return ((unsigned long)(real_mode_header->wakeup_start));
+}
+
+/**
* x86_acpi_enter_sleep_state - enter sleep state
* @state: Sleep state to enter.
*
diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
index fbb60ca4255c..d06c2079b6c1 100644
--- a/arch/x86/kernel/acpi/sleep.h
+++ b/arch/x86/kernel/acpi/sleep.h
@@ -3,7 +3,7 @@
* Variables and functions used by the code in sleep.c
*/
-#include <asm/realmode.h>
+#include <linux/linkage.h>
extern unsigned long saved_video_mode;
extern long saved_magic;
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 9ec463fe96f2..34360ca301a2 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -936,44 +936,81 @@ static void do_sync_core(void *info)
sync_core();
}
-static struct bp_patching_desc {
+void text_poke_sync(void)
+{
+ on_each_cpu(do_sync_core, NULL, 1);
+}
+
+struct text_poke_loc {
+ s32 rel_addr; /* addr := _stext + rel_addr */
+ s32 rel32;
+ u8 opcode;
+ const u8 text[POKE_MAX_OPCODE_SIZE];
+};
+
+struct bp_patching_desc {
struct text_poke_loc *vec;
int nr_entries;
-} bp_patching;
+ atomic_t refs;
+};
+
+static struct bp_patching_desc *bp_desc;
+
+static inline struct bp_patching_desc *try_get_desc(struct bp_patching_desc **descp)
+{
+ struct bp_patching_desc *desc = READ_ONCE(*descp); /* rcu_dereference */
+
+ if (!desc || !atomic_inc_not_zero(&desc->refs))
+ return NULL;
+
+ return desc;
+}
+
+static inline void put_desc(struct bp_patching_desc *desc)
+{
+ smp_mb__before_atomic();
+ atomic_dec(&desc->refs);
+}
-static int patch_cmp(const void *key, const void *elt)
+static inline void *text_poke_addr(struct text_poke_loc *tp)
+{
+ return _stext + tp->rel_addr;
+}
+
+static int notrace patch_cmp(const void *key, const void *elt)
{
struct text_poke_loc *tp = (struct text_poke_loc *) elt;
- if (key < tp->addr)
+ if (key < text_poke_addr(tp))
return -1;
- if (key > tp->addr)
+ if (key > text_poke_addr(tp))
return 1;
return 0;
}
NOKPROBE_SYMBOL(patch_cmp);
-int poke_int3_handler(struct pt_regs *regs)
+int notrace poke_int3_handler(struct pt_regs *regs)
{
+ struct bp_patching_desc *desc;
struct text_poke_loc *tp;
+ int len, ret = 0;
void *ip;
+ if (user_mode(regs))
+ return 0;
+
/*
* Having observed our INT3 instruction, we now must observe
- * bp_patching.nr_entries.
+ * bp_desc:
*
- * nr_entries != 0 INT3
+ * bp_desc = desc INT3
* WMB RMB
- * write INT3 if (nr_entries)
- *
- * Idem for other elements in bp_patching.
+ * write INT3 if (desc)
*/
smp_rmb();
- if (likely(!bp_patching.nr_entries))
- return 0;
-
- if (user_mode(regs))
+ desc = try_get_desc(&bp_desc);
+ if (!desc)
return 0;
/*
@@ -984,19 +1021,20 @@ int poke_int3_handler(struct pt_regs *regs)
/*
* Skip the binary search if there is a single member in the vector.
*/
- if (unlikely(bp_patching.nr_entries > 1)) {
- tp = bsearch(ip, bp_patching.vec, bp_patching.nr_entries,
+ if (unlikely(desc->nr_entries > 1)) {
+ tp = bsearch(ip, desc->vec, desc->nr_entries,
sizeof(struct text_poke_loc),
patch_cmp);
if (!tp)
- return 0;
+ goto out_put;
} else {
- tp = bp_patching.vec;
- if (tp->addr != ip)
- return 0;
+ tp = desc->vec;
+ if (text_poke_addr(tp) != ip)
+ goto out_put;
}
- ip += tp->len;
+ len = text_opcode_size(tp->opcode);
+ ip += len;
switch (tp->opcode) {
case INT3_INSN_OPCODE:
@@ -1004,7 +1042,7 @@ int poke_int3_handler(struct pt_regs *regs)
* Someone poked an explicit INT3, they'll want to handle it,
* do not consume.
*/
- return 0;
+ goto out_put;
case CALL_INSN_OPCODE:
int3_emulate_call(regs, (long)ip + tp->rel32);
@@ -1019,10 +1057,18 @@ int poke_int3_handler(struct pt_regs *regs)
BUG();
}
- return 1;
+ ret = 1;
+
+out_put:
+ put_desc(desc);
+ return ret;
}
NOKPROBE_SYMBOL(poke_int3_handler);
+#define TP_VEC_MAX (PAGE_SIZE / sizeof(struct text_poke_loc))
+static struct text_poke_loc tp_vec[TP_VEC_MAX];
+static int tp_vec_nr;
+
/**
* text_poke_bp_batch() -- update instructions on live kernel on SMP
* @tp: vector of instructions to patch
@@ -1044,16 +1090,20 @@ NOKPROBE_SYMBOL(poke_int3_handler);
* replacing opcode
* - sync cores
*/
-void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries)
+static void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries)
{
+ struct bp_patching_desc desc = {
+ .vec = tp,
+ .nr_entries = nr_entries,
+ .refs = ATOMIC_INIT(1),
+ };
unsigned char int3 = INT3_INSN_OPCODE;
unsigned int i;
int do_sync;
lockdep_assert_held(&text_mutex);
- bp_patching.vec = tp;
- bp_patching.nr_entries = nr_entries;
+ smp_store_release(&bp_desc, &desc); /* rcu_assign_pointer */
/*
* Corresponding read barrier in int3 notifier for making sure the
@@ -1065,18 +1115,20 @@ void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries)
* First step: add a int3 trap to the address that will be patched.
*/
for (i = 0; i < nr_entries; i++)
- text_poke(tp[i].addr, &int3, sizeof(int3));
+ text_poke(text_poke_addr(&tp[i]), &int3, INT3_INSN_SIZE);
- on_each_cpu(do_sync_core, NULL, 1);
+ text_poke_sync();
/*
* Second step: update all but the first byte of the patched range.
*/
for (do_sync = 0, i = 0; i < nr_entries; i++) {
- if (tp[i].len - sizeof(int3) > 0) {
- text_poke((char *)tp[i].addr + sizeof(int3),
- (const char *)tp[i].text + sizeof(int3),
- tp[i].len - sizeof(int3));
+ int len = text_opcode_size(tp[i].opcode);
+
+ if (len - INT3_INSN_SIZE > 0) {
+ text_poke(text_poke_addr(&tp[i]) + INT3_INSN_SIZE,
+ (const char *)tp[i].text + INT3_INSN_SIZE,
+ len - INT3_INSN_SIZE);
do_sync++;
}
}
@@ -1087,7 +1139,7 @@ void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries)
* not necessary and we'd be safe even without it. But
* better safe than sorry (plus there's not only Intel).
*/
- on_each_cpu(do_sync_core, NULL, 1);
+ text_poke_sync();
}
/*
@@ -1098,19 +1150,20 @@ void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries)
if (tp[i].text[0] == INT3_INSN_OPCODE)
continue;
- text_poke(tp[i].addr, tp[i].text, sizeof(int3));
+ text_poke(text_poke_addr(&tp[i]), tp[i].text, INT3_INSN_SIZE);
do_sync++;
}
if (do_sync)
- on_each_cpu(do_sync_core, NULL, 1);
+ text_poke_sync();
/*
- * sync_core() implies an smp_mb() and orders this store against
- * the writing of the new instruction.
+ * Remove and synchronize_rcu(), except we have a very primitive
+ * refcount based completion.
*/
- bp_patching.vec = NULL;
- bp_patching.nr_entries = 0;
+ WRITE_ONCE(bp_desc, NULL); /* RCU_INIT_POINTER */
+ if (!atomic_dec_and_test(&desc.refs))
+ atomic_cond_read_acquire(&desc.refs, !VAL);
}
void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
@@ -1118,11 +1171,7 @@ void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
{
struct insn insn;
- if (!opcode)
- opcode = (void *)tp->text;
- else
- memcpy((void *)tp->text, opcode, len);
-
+ memcpy((void *)tp->text, opcode, len);
if (!emulate)
emulate = opcode;
@@ -1132,8 +1181,7 @@ void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
BUG_ON(!insn_complete(&insn));
BUG_ON(len != insn.length);
- tp->addr = addr;
- tp->len = len;
+ tp->rel_addr = addr - (void *)_stext;
tp->opcode = insn.opcode.bytes[0];
switch (tp->opcode) {
@@ -1167,6 +1215,55 @@ void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
}
}
+/*
+ * We hard rely on the tp_vec being ordered; ensure this is so by flushing
+ * early if needed.
+ */
+static bool tp_order_fail(void *addr)
+{
+ struct text_poke_loc *tp;
+
+ if (!tp_vec_nr)
+ return false;
+
+ if (!addr) /* force */
+ return true;
+
+ tp = &tp_vec[tp_vec_nr - 1];
+ if ((unsigned long)text_poke_addr(tp) > (unsigned long)addr)
+ return true;
+
+ return false;
+}
+
+static void text_poke_flush(void *addr)
+{
+ if (tp_vec_nr == TP_VEC_MAX || tp_order_fail(addr)) {
+ text_poke_bp_batch(tp_vec, tp_vec_nr);
+ tp_vec_nr = 0;
+ }
+}
+
+void text_poke_finish(void)
+{
+ text_poke_flush(NULL);
+}
+
+void __ref text_poke_queue(void *addr, const void *opcode, size_t len, const void *emulate)
+{
+ struct text_poke_loc *tp;
+
+ if (unlikely(system_state == SYSTEM_BOOTING)) {
+ text_poke_early(addr, opcode, len);
+ return;
+ }
+
+ text_poke_flush(addr);
+
+ tp = &tp_vec[tp_vec_nr++];
+ text_poke_loc_init(tp, addr, opcode, len, emulate);
+}
+
/**
* text_poke_bp() -- update instructions on live kernel on SMP
* @addr: address to patch
@@ -1178,10 +1275,15 @@ void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
* dynamically allocated memory. This function should be used when it is
* not possible to allocate memory.
*/
-void text_poke_bp(void *addr, const void *opcode, size_t len, const void *emulate)
+void __ref text_poke_bp(void *addr, const void *opcode, size_t len, const void *emulate)
{
struct text_poke_loc tp;
+ if (unlikely(system_state == SYSTEM_BOOTING)) {
+ text_poke_early(addr, opcode, len);
+ return;
+ }
+
text_poke_loc_init(&tp, addr, opcode, len, emulate);
text_poke_bp_batch(&tp, 1);
}
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 251c795b4eb3..69aed0ebbdfc 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -22,6 +22,7 @@
#define PCI_DEVICE_ID_AMD_17H_M10H_DF_F4 0x15ec
#define PCI_DEVICE_ID_AMD_17H_M30H_DF_F4 0x1494
#define PCI_DEVICE_ID_AMD_17H_M70H_DF_F4 0x1444
+#define PCI_DEVICE_ID_AMD_19H_DF_F4 0x1654
/* Protect the PCI config register pairs used for SMN and DF indirect access. */
static DEFINE_MUTEX(smn_mutex);
@@ -52,6 +53,7 @@ const struct pci_device_id amd_nb_misc_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_DF_F3) },
{}
};
EXPORT_SYMBOL_GPL(amd_nb_misc_ids);
@@ -66,6 +68,7 @@ static const struct pci_device_id amd_nb_link_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M10H_DF_F4) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F4) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_DF_F4) },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F4) },
{}
};
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 5da106f84e84..fe698f96617c 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -95,7 +95,7 @@ static inline void apbt_set_mapping(void)
printk(KERN_WARNING "No timer base from SFI, use default\n");
apbt_address = APBT_DEFAULT_BASE;
}
- apbt_virt_address = ioremap_nocache(apbt_address, APBT_MMAP_SIZE);
+ apbt_virt_address = ioremap(apbt_address, APBT_MMAP_SIZE);
if (!apbt_virt_address) {
pr_debug("Failed mapping APBT phy address at %lu\n",\
(unsigned long)apbt_address);
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index d5b51a740524..ad53b2abc859 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1493,65 +1493,34 @@ static void check_efi_reboot(void)
}
/* Setup user proc fs files */
-static int proc_hubbed_show(struct seq_file *file, void *data)
+static int __maybe_unused proc_hubbed_show(struct seq_file *file, void *data)
{
seq_printf(file, "0x%x\n", uv_hubbed_system);
return 0;
}
-static int proc_hubless_show(struct seq_file *file, void *data)
+static int __maybe_unused proc_hubless_show(struct seq_file *file, void *data)
{
seq_printf(file, "0x%x\n", uv_hubless_system);
return 0;
}
-static int proc_oemid_show(struct seq_file *file, void *data)
+static int __maybe_unused proc_oemid_show(struct seq_file *file, void *data)
{
seq_printf(file, "%s/%s\n", oem_id, oem_table_id);
return 0;
}
-static int proc_hubbed_open(struct inode *inode, struct file *file)
-{
- return single_open(file, proc_hubbed_show, (void *)NULL);
-}
-
-static int proc_hubless_open(struct inode *inode, struct file *file)
-{
- return single_open(file, proc_hubless_show, (void *)NULL);
-}
-
-static int proc_oemid_open(struct inode *inode, struct file *file)
-{
- return single_open(file, proc_oemid_show, (void *)NULL);
-}
-
-/* (struct is "non-const" as open function is set at runtime) */
-static struct file_operations proc_version_fops = {
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations proc_oemid_fops = {
- .open = proc_oemid_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
static __init void uv_setup_proc_files(int hubless)
{
struct proc_dir_entry *pde;
- char *name = hubless ? "hubless" : "hubbed";
pde = proc_mkdir(UV_PROC_NODE, NULL);
- proc_create("oemid", 0, pde, &proc_oemid_fops);
- proc_create(name, 0, pde, &proc_version_fops);
+ proc_create_single("oemid", 0, pde, proc_oemid_show);
if (hubless)
- proc_version_fops.open = proc_hubless_open;
+ proc_create_single("hubless", 0, pde, proc_hubless_show);
else
- proc_version_fops.open = proc_hubbed_open;
+ proc_create_single("hubbed", 0, pde, proc_hubbed_show);
}
/* Initialize UV hubless systems */
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 890f60083eca..7dc4ad68eb41 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -29,6 +29,7 @@ obj-y += umwait.o
obj-$(CONFIG_PROC_FS) += proc.o
obj-$(CONFIG_X86_FEATURE_NAMES) += capflags.o powerflags.o
+obj-$(CONFIG_IA32_FEAT_CTL) += feat_ctl.o
ifdef CONFIG_CPU_SUP_INTEL
obj-y += intel.o intel_pconfig.o tsx.o
obj-$(CONFIG_PM) += intel_epb.o
@@ -53,11 +54,12 @@ obj-$(CONFIG_ACRN_GUEST) += acrn.o
ifdef CONFIG_X86_FEATURE_NAMES
quiet_cmd_mkcapflags = MKCAP $@
- cmd_mkcapflags = $(CONFIG_SHELL) $(srctree)/$(src)/mkcapflags.sh $< $@
+ cmd_mkcapflags = $(CONFIG_SHELL) $(srctree)/$(src)/mkcapflags.sh $@ $^
cpufeature = $(src)/../../include/asm/cpufeatures.h
+vmxfeature = $(src)/../../include/asm/vmxfeatures.h
-$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.sh FORCE
+$(obj)/capflags.c: $(cpufeature) $(vmxfeature) $(src)/mkcapflags.sh FORCE
$(call if_changed,mkcapflags)
endif
targets += capflags.c
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 90f75e515876..ac83a0fef628 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -319,13 +319,6 @@ static void legacy_fixup_core_id(struct cpuinfo_x86 *c)
c->cpu_core_id %= cus_per_node;
}
-
-static void amd_get_topology_early(struct cpuinfo_x86 *c)
-{
- if (cpu_has(c, X86_FEATURE_TOPOEXT))
- smp_num_siblings = ((cpuid_ebx(0x8000001e) >> 8) & 0xff) + 1;
-}
-
/*
* Fixup core topology information for
* (1) AMD multi-node processors
@@ -615,9 +608,9 @@ static void early_detect_mem_encrypt(struct cpuinfo_x86 *c)
return;
clear_all:
- clear_cpu_cap(c, X86_FEATURE_SME);
+ setup_clear_cpu_cap(X86_FEATURE_SME);
clear_sev:
- clear_cpu_cap(c, X86_FEATURE_SEV);
+ setup_clear_cpu_cap(X86_FEATURE_SEV);
}
}
@@ -717,7 +710,8 @@ static void early_init_amd(struct cpuinfo_x86 *c)
}
}
- amd_get_topology_early(c);
+ if (cpu_has(c, X86_FEATURE_TOPOEXT))
+ smp_num_siblings = ((cpuid_ebx(0x8000001e) >> 8) & 0xff) + 1;
}
static void init_amd_k8(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 8bf64899f56a..ed54b3b21c39 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -286,6 +286,13 @@ early_param("mds", mds_cmdline);
#undef pr_fmt
#define pr_fmt(fmt) "TAA: " fmt
+enum taa_mitigations {
+ TAA_MITIGATION_OFF,
+ TAA_MITIGATION_UCODE_NEEDED,
+ TAA_MITIGATION_VERW,
+ TAA_MITIGATION_TSX_DISABLED,
+};
+
/* Default mitigation for TAA-affected CPUs */
static enum taa_mitigations taa_mitigation __ro_after_init = TAA_MITIGATION_VERW;
static bool taa_nosmt __ro_after_init;
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index 14433ff5b828..426792565d86 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -18,13 +18,6 @@
#define RNG_ENABLED (1 << 3)
#define RNG_ENABLE (1 << 6) /* MSR_VIA_RNG */
-#define X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW 0x00200000
-#define X86_VMX_FEATURE_PROC_CTLS_VNMI 0x00400000
-#define X86_VMX_FEATURE_PROC_CTLS_2ND_CTLS 0x80000000
-#define X86_VMX_FEATURE_PROC_CTLS2_VIRT_APIC 0x00000001
-#define X86_VMX_FEATURE_PROC_CTLS2_EPT 0x00000002
-#define X86_VMX_FEATURE_PROC_CTLS2_VPID 0x00000020
-
static void init_c3(struct cpuinfo_x86 *c)
{
u32 lo, hi;
@@ -71,8 +64,6 @@ static void init_c3(struct cpuinfo_x86 *c)
c->x86_cache_alignment = c->x86_clflush_size * 2;
set_cpu_cap(c, X86_FEATURE_REP_GOOD);
}
-
- cpu_detect_cache_sizes(c);
}
enum {
@@ -119,31 +110,6 @@ static void early_init_centaur(struct cpuinfo_x86 *c)
}
}
-static void centaur_detect_vmx_virtcap(struct cpuinfo_x86 *c)
-{
- u32 vmx_msr_low, vmx_msr_high, msr_ctl, msr_ctl2;
-
- rdmsr(MSR_IA32_VMX_PROCBASED_CTLS, vmx_msr_low, vmx_msr_high);
- msr_ctl = vmx_msr_high | vmx_msr_low;
-
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW)
- set_cpu_cap(c, X86_FEATURE_TPR_SHADOW);
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_VNMI)
- set_cpu_cap(c, X86_FEATURE_VNMI);
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_2ND_CTLS) {
- rdmsr(MSR_IA32_VMX_PROCBASED_CTLS2,
- vmx_msr_low, vmx_msr_high);
- msr_ctl2 = vmx_msr_high | vmx_msr_low;
- if ((msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_VIRT_APIC) &&
- (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW))
- set_cpu_cap(c, X86_FEATURE_FLEXPRIORITY);
- if (msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_EPT)
- set_cpu_cap(c, X86_FEATURE_EPT);
- if (msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_VPID)
- set_cpu_cap(c, X86_FEATURE_VPID);
- }
-}
-
static void init_centaur(struct cpuinfo_x86 *c)
{
#ifdef CONFIG_X86_32
@@ -250,8 +216,7 @@ static void init_centaur(struct cpuinfo_x86 *c)
set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
#endif
- if (cpu_has(c, X86_FEATURE_VMX))
- centaur_detect_vmx_virtcap(c);
+ init_ia32_feat_ctl(c);
}
#ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2e4d90294fe6..86b8241c8209 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -14,6 +14,7 @@
#include <linux/sched/mm.h>
#include <linux/sched/clock.h>
#include <linux/sched/task.h>
+#include <linux/sched/smt.h>
#include <linux/init.h>
#include <linux/kprobes.h>
#include <linux/kgdb.h>
@@ -49,7 +50,7 @@
#include <asm/cpu.h>
#include <asm/mce.h>
#include <asm/msr.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/microcode.h>
#include <asm/microcode_intel.h>
#include <asm/intel-family.h>
@@ -1023,6 +1024,7 @@ static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c)
#define MSBDS_ONLY BIT(5)
#define NO_SWAPGS BIT(6)
#define NO_ITLB_MULTIHIT BIT(7)
+#define NO_SPECTRE_V2 BIT(8)
#define VULNWL(_vendor, _family, _model, _whitelist) \
{ X86_VENDOR_##_vendor, _family, _model, X86_FEATURE_ANY, _whitelist }
@@ -1084,6 +1086,10 @@ static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = {
/* FAMILY_ANY must be last, otherwise 0x0f - 0x12 matches won't work */
VULNWL_AMD(X86_FAMILY_ANY, NO_MELTDOWN | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
VULNWL_HYGON(X86_FAMILY_ANY, NO_MELTDOWN | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
+
+ /* Zhaoxin Family 7 */
+ VULNWL(CENTAUR, 7, X86_MODEL_ANY, NO_SPECTRE_V2 | NO_SWAPGS),
+ VULNWL(ZHAOXIN, 7, X86_MODEL_ANY, NO_SPECTRE_V2 | NO_SWAPGS),
{}
};
@@ -1116,7 +1122,9 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
return;
setup_force_cpu_bug(X86_BUG_SPECTRE_V1);
- setup_force_cpu_bug(X86_BUG_SPECTRE_V2);
+
+ if (!cpu_matches(NO_SPECTRE_V2))
+ setup_force_cpu_bug(X86_BUG_SPECTRE_V2);
if (!cpu_matches(NO_SSB) && !(ia32_cap & ARCH_CAP_SSB_NO) &&
!cpu_has(c, X86_FEATURE_AMD_SSB_NO))
@@ -1449,6 +1457,9 @@ static void identify_cpu(struct cpuinfo_x86 *c)
#endif
c->x86_cache_alignment = c->x86_clflush_size;
memset(&c->x86_capability, 0, sizeof(c->x86_capability));
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+ memset(&c->vmx_capability, 0, sizeof(c->vmx_capability));
+#endif
generic_identify(c);
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index 38ab6e115eac..37fdefd14f28 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -80,4 +80,8 @@ extern void x86_spec_ctrl_setup_ap(void);
extern u64 x86_read_arch_cap_msr(void);
+#ifdef CONFIG_IA32_FEAT_CTL
+void init_ia32_feat_ctl(struct cpuinfo_x86 *c);
+#endif
+
#endif /* ARCH_X86_CPU_H */
diff --git a/arch/x86/kernel/cpu/feat_ctl.c b/arch/x86/kernel/cpu/feat_ctl.c
new file mode 100644
index 000000000000..0268185bef94
--- /dev/null
+++ b/arch/x86/kernel/cpu/feat_ctl.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/tboot.h>
+
+#include <asm/cpufeature.h>
+#include <asm/msr-index.h>
+#include <asm/processor.h>
+#include <asm/vmx.h>
+
+#undef pr_fmt
+#define pr_fmt(fmt) "x86/cpu: " fmt
+
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+enum vmx_feature_leafs {
+ MISC_FEATURES = 0,
+ PRIMARY_CTLS,
+ SECONDARY_CTLS,
+ NR_VMX_FEATURE_WORDS,
+};
+
+#define VMX_F(x) BIT(VMX_FEATURE_##x & 0x1f)
+
+static void init_vmx_capabilities(struct cpuinfo_x86 *c)
+{
+ u32 supported, funcs, ept, vpid, ign;
+
+ BUILD_BUG_ON(NVMXINTS != NR_VMX_FEATURE_WORDS);
+
+ /*
+ * The high bits contain the allowed-1 settings, i.e. features that can
+ * be turned on. The low bits contain the allowed-0 settings, i.e.
+ * features that can be turned off. Ignore the allowed-0 settings,
+ * if a feature can be turned on then it's supported.
+ *
+ * Use raw rdmsr() for primary processor controls and pin controls MSRs
+ * as they exist on any CPU that supports VMX, i.e. we want the WARN if
+ * the RDMSR faults.
+ */
+ rdmsr(MSR_IA32_VMX_PROCBASED_CTLS, ign, supported);
+ c->vmx_capability[PRIMARY_CTLS] = supported;
+
+ rdmsr_safe(MSR_IA32_VMX_PROCBASED_CTLS2, &ign, &supported);
+ c->vmx_capability[SECONDARY_CTLS] = supported;
+
+ rdmsr(MSR_IA32_VMX_PINBASED_CTLS, ign, supported);
+ rdmsr_safe(MSR_IA32_VMX_VMFUNC, &ign, &funcs);
+
+ /*
+ * Except for EPT+VPID, which enumerates support for both in a single
+ * MSR, low for EPT, high for VPID.
+ */
+ rdmsr_safe(MSR_IA32_VMX_EPT_VPID_CAP, &ept, &vpid);
+
+ /* Pin, EPT, VPID and VM-Func are merged into a single word. */
+ WARN_ON_ONCE(supported >> 16);
+ WARN_ON_ONCE(funcs >> 4);
+ c->vmx_capability[MISC_FEATURES] = (supported & 0xffff) |
+ ((vpid & 0x1) << 16) |
+ ((funcs & 0xf) << 28);
+
+ /* EPT bits are full on scattered and must be manually handled. */
+ if (ept & VMX_EPT_EXECUTE_ONLY_BIT)
+ c->vmx_capability[MISC_FEATURES] |= VMX_F(EPT_EXECUTE_ONLY);
+ if (ept & VMX_EPT_AD_BIT)
+ c->vmx_capability[MISC_FEATURES] |= VMX_F(EPT_AD);
+ if (ept & VMX_EPT_1GB_PAGE_BIT)
+ c->vmx_capability[MISC_FEATURES] |= VMX_F(EPT_1GB);
+
+ /* Synthetic APIC features that are aggregates of multiple features. */
+ if ((c->vmx_capability[PRIMARY_CTLS] & VMX_F(VIRTUAL_TPR)) &&
+ (c->vmx_capability[SECONDARY_CTLS] & VMX_F(VIRT_APIC_ACCESSES)))
+ c->vmx_capability[MISC_FEATURES] |= VMX_F(FLEXPRIORITY);
+
+ if ((c->vmx_capability[PRIMARY_CTLS] & VMX_F(VIRTUAL_TPR)) &&
+ (c->vmx_capability[SECONDARY_CTLS] & VMX_F(APIC_REGISTER_VIRT)) &&
+ (c->vmx_capability[SECONDARY_CTLS] & VMX_F(VIRT_INTR_DELIVERY)) &&
+ (c->vmx_capability[MISC_FEATURES] & VMX_F(POSTED_INTR)))
+ c->vmx_capability[MISC_FEATURES] |= VMX_F(APICV);
+
+ /* Set the synthetic cpufeatures to preserve /proc/cpuinfo's ABI. */
+ if (c->vmx_capability[PRIMARY_CTLS] & VMX_F(VIRTUAL_TPR))
+ set_cpu_cap(c, X86_FEATURE_TPR_SHADOW);
+ if (c->vmx_capability[MISC_FEATURES] & VMX_F(FLEXPRIORITY))
+ set_cpu_cap(c, X86_FEATURE_FLEXPRIORITY);
+ if (c->vmx_capability[MISC_FEATURES] & VMX_F(VIRTUAL_NMIS))
+ set_cpu_cap(c, X86_FEATURE_VNMI);
+ if (c->vmx_capability[SECONDARY_CTLS] & VMX_F(EPT))
+ set_cpu_cap(c, X86_FEATURE_EPT);
+ if (c->vmx_capability[MISC_FEATURES] & VMX_F(EPT_AD))
+ set_cpu_cap(c, X86_FEATURE_EPT_AD);
+ if (c->vmx_capability[MISC_FEATURES] & VMX_F(VPID))
+ set_cpu_cap(c, X86_FEATURE_VPID);
+}
+#endif /* CONFIG_X86_VMX_FEATURE_NAMES */
+
+void init_ia32_feat_ctl(struct cpuinfo_x86 *c)
+{
+ bool tboot = tboot_enabled();
+ u64 msr;
+
+ if (rdmsrl_safe(MSR_IA32_FEAT_CTL, &msr)) {
+ clear_cpu_cap(c, X86_FEATURE_VMX);
+ return;
+ }
+
+ if (msr & FEAT_CTL_LOCKED)
+ goto update_caps;
+
+ /*
+ * Ignore whatever value BIOS left in the MSR to avoid enabling random
+ * features or faulting on the WRMSR.
+ */
+ msr = FEAT_CTL_LOCKED;
+
+ /*
+ * Enable VMX if and only if the kernel may do VMXON at some point,
+ * i.e. KVM is enabled, to avoid unnecessarily adding an attack vector
+ * for the kernel, e.g. using VMX to hide malicious code.
+ */
+ if (cpu_has(c, X86_FEATURE_VMX) && IS_ENABLED(CONFIG_KVM_INTEL)) {
+ msr |= FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX;
+
+ if (tboot)
+ msr |= FEAT_CTL_VMX_ENABLED_INSIDE_SMX;
+ }
+
+ wrmsrl(MSR_IA32_FEAT_CTL, msr);
+
+update_caps:
+ set_cpu_cap(c, X86_FEATURE_MSR_IA32_FEAT_CTL);
+
+ if (!cpu_has(c, X86_FEATURE_VMX))
+ return;
+
+ if ( (tboot && !(msr & FEAT_CTL_VMX_ENABLED_INSIDE_SMX)) ||
+ (!tboot && !(msr & FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX))) {
+ if (IS_ENABLED(CONFIG_KVM_INTEL))
+ pr_err_once("VMX (%s TXT) disabled by BIOS\n",
+ tboot ? "inside" : "outside");
+ clear_cpu_cap(c, X86_FEATURE_VMX);
+ } else {
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+ init_vmx_capabilities(c);
+#endif
+ }
+}
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 4a900804a023..57473e2c0869 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -494,52 +494,6 @@ static void srat_detect_node(struct cpuinfo_x86 *c)
#endif
}
-static void detect_vmx_virtcap(struct cpuinfo_x86 *c)
-{
- /* Intel VMX MSR indicated features */
-#define X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW 0x00200000
-#define X86_VMX_FEATURE_PROC_CTLS_VNMI 0x00400000
-#define X86_VMX_FEATURE_PROC_CTLS_2ND_CTLS 0x80000000
-#define X86_VMX_FEATURE_PROC_CTLS2_VIRT_APIC 0x00000001
-#define X86_VMX_FEATURE_PROC_CTLS2_EPT 0x00000002
-#define X86_VMX_FEATURE_PROC_CTLS2_VPID 0x00000020
-#define x86_VMX_FEATURE_EPT_CAP_AD 0x00200000
-
- u32 vmx_msr_low, vmx_msr_high, msr_ctl, msr_ctl2;
- u32 msr_vpid_cap, msr_ept_cap;
-
- clear_cpu_cap(c, X86_FEATURE_TPR_SHADOW);
- clear_cpu_cap(c, X86_FEATURE_VNMI);
- clear_cpu_cap(c, X86_FEATURE_FLEXPRIORITY);
- clear_cpu_cap(c, X86_FEATURE_EPT);
- clear_cpu_cap(c, X86_FEATURE_VPID);
- clear_cpu_cap(c, X86_FEATURE_EPT_AD);
-
- rdmsr(MSR_IA32_VMX_PROCBASED_CTLS, vmx_msr_low, vmx_msr_high);
- msr_ctl = vmx_msr_high | vmx_msr_low;
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW)
- set_cpu_cap(c, X86_FEATURE_TPR_SHADOW);
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_VNMI)
- set_cpu_cap(c, X86_FEATURE_VNMI);
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_2ND_CTLS) {
- rdmsr(MSR_IA32_VMX_PROCBASED_CTLS2,
- vmx_msr_low, vmx_msr_high);
- msr_ctl2 = vmx_msr_high | vmx_msr_low;
- if ((msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_VIRT_APIC) &&
- (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW))
- set_cpu_cap(c, X86_FEATURE_FLEXPRIORITY);
- if (msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_EPT) {
- set_cpu_cap(c, X86_FEATURE_EPT);
- rdmsr(MSR_IA32_VMX_EPT_VPID_CAP,
- msr_ept_cap, msr_vpid_cap);
- if (msr_ept_cap & x86_VMX_FEATURE_EPT_CAP_AD)
- set_cpu_cap(c, X86_FEATURE_EPT_AD);
- }
- if (msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_VPID)
- set_cpu_cap(c, X86_FEATURE_VPID);
- }
-}
-
#define MSR_IA32_TME_ACTIVATE 0x982
/* Helpers to access TME_ACTIVATE MSR */
@@ -755,8 +709,7 @@ static void init_intel(struct cpuinfo_x86 *c)
/* Work around errata */
srat_detect_node(c);
- if (cpu_has(c, X86_FEATURE_VMX))
- detect_vmx_virtcap(c);
+ init_ia32_feat_ctl(c);
if (cpu_has(c, X86_FEATURE_TME))
detect_tme(c);
diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c
index 5167bd2bb6b1..b3a50d962851 100644
--- a/arch/x86/kernel/cpu/mce/amd.c
+++ b/arch/x86/kernel/cpu/mce/amd.c
@@ -78,6 +78,7 @@ struct smca_bank_name {
static struct smca_bank_name smca_names[] = {
[SMCA_LS] = { "load_store", "Load Store Unit" },
+ [SMCA_LS_V2] = { "load_store", "Load Store Unit" },
[SMCA_IF] = { "insn_fetch", "Instruction Fetch Unit" },
[SMCA_L2_CACHE] = { "l2_cache", "L2 Cache" },
[SMCA_DE] = { "decode_unit", "Decode Unit" },
@@ -138,6 +139,7 @@ static struct smca_hwid smca_hwid_mcatypes[] = {
/* ZN Core (HWID=0xB0) MCA types */
{ SMCA_LS, HWID_MCATYPE(0xB0, 0x0), 0x1FFFFF },
+ { SMCA_LS_V2, HWID_MCATYPE(0xB0, 0x10), 0xFFFFFF },
{ SMCA_IF, HWID_MCATYPE(0xB0, 0x1), 0x3FFF },
{ SMCA_L2_CACHE, HWID_MCATYPE(0xB0, 0x2), 0xF },
{ SMCA_DE, HWID_MCATYPE(0xB0, 0x3), 0x1FF },
@@ -266,10 +268,10 @@ static void smca_configure(unsigned int bank, unsigned int cpu)
smca_set_misc_banks_map(bank, cpu);
/* Return early if this bank was already initialized. */
- if (smca_banks[bank].hwid)
+ if (smca_banks[bank].hwid && smca_banks[bank].hwid->hwid_mcatype != 0)
return;
- if (rdmsr_safe_on_cpu(cpu, MSR_AMD64_SMCA_MCx_IPID(bank), &low, &high)) {
+ if (rdmsr_safe(MSR_AMD64_SMCA_MCx_IPID(bank), &low, &high)) {
pr_warn("Failed to read MCA_IPID for bank %d\n", bank);
return;
}
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 5f42f25bac8f..2c4f949611e4 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -53,8 +53,6 @@
#include "internal.h"
-static DEFINE_MUTEX(mce_log_mutex);
-
/* sysfs synchronization */
static DEFINE_MUTEX(mce_sysfs_mutex);
@@ -156,19 +154,10 @@ void mce_log(struct mce *m)
if (!mce_gen_pool_add(m))
irq_work_queue(&mce_irq_work);
}
-
-void mce_inject_log(struct mce *m)
-{
- mutex_lock(&mce_log_mutex);
- mce_log(m);
- mutex_unlock(&mce_log_mutex);
-}
-EXPORT_SYMBOL_GPL(mce_inject_log);
-
-static struct notifier_block mce_srao_nb;
+EXPORT_SYMBOL_GPL(mce_log);
/*
- * We run the default notifier if we have only the SRAO, the first and the
+ * We run the default notifier if we have only the UC, the first and the
* default notifier registered. I.e., the mandatory NUM_DEFAULT_NOTIFIERS
* notifiers registered on the chain.
*/
@@ -594,26 +583,29 @@ static struct notifier_block first_nb = {
.priority = MCE_PRIO_FIRST,
};
-static int srao_decode_notifier(struct notifier_block *nb, unsigned long val,
- void *data)
+static int uc_decode_notifier(struct notifier_block *nb, unsigned long val,
+ void *data)
{
struct mce *mce = (struct mce *)data;
unsigned long pfn;
- if (!mce)
+ if (!mce || !mce_usable_address(mce))
return NOTIFY_DONE;
- if (mce_usable_address(mce) && (mce->severity == MCE_AO_SEVERITY)) {
- pfn = mce->addr >> PAGE_SHIFT;
- if (!memory_failure(pfn, 0))
- set_mce_nospec(pfn);
- }
+ if (mce->severity != MCE_AO_SEVERITY &&
+ mce->severity != MCE_DEFERRED_SEVERITY)
+ return NOTIFY_DONE;
+
+ pfn = mce->addr >> PAGE_SHIFT;
+ if (!memory_failure(pfn, 0))
+ set_mce_nospec(pfn);
return NOTIFY_OK;
}
-static struct notifier_block mce_srao_nb = {
- .notifier_call = srao_decode_notifier,
- .priority = MCE_PRIO_SRAO,
+
+static struct notifier_block mce_uc_nb = {
+ .notifier_call = uc_decode_notifier,
+ .priority = MCE_PRIO_UC,
};
static int mce_default_notifier(struct notifier_block *nb, unsigned long val,
@@ -763,26 +755,22 @@ bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
log_it:
error_seen = true;
- mce_read_aux(&m, i);
+ if (flags & MCP_DONTLOG)
+ goto clear_it;
+ mce_read_aux(&m, i);
m.severity = mce_severity(&m, mca_cfg.tolerant, NULL, false);
-
/*
* Don't get the IP here because it's unlikely to
* have anything to do with the actual error location.
*/
- if (!(flags & MCP_DONTLOG) && !mca_cfg.dont_log_ce)
- mce_log(&m);
- else if (mce_usable_address(&m)) {
- /*
- * Although we skipped logging this, we still want
- * to take action. Add to the pool so the registered
- * notifiers will see it.
- */
- if (!mce_gen_pool_add(&m))
- mce_schedule_work();
- }
+ if (mca_cfg.dont_log_ce && !mce_usable_address(&m))
+ goto clear_it;
+
+ mce_log(&m);
+
+clear_it:
/*
* Clear state for this bank.
*/
@@ -807,7 +795,7 @@ EXPORT_SYMBOL_GPL(machine_check_poll);
static int mce_no_way_out(struct mce *m, char **msg, unsigned long *validp,
struct pt_regs *regs)
{
- char *tmp;
+ char *tmp = *msg;
int i;
for (i = 0; i < this_cpu_read(mce_num_banks); i++) {
@@ -819,8 +807,8 @@ static int mce_no_way_out(struct mce *m, char **msg, unsigned long *validp,
if (quirk_no_way_out)
quirk_no_way_out(i, m, regs);
+ m->bank = i;
if (mce_severity(m, mca_cfg.tolerant, &tmp, true) >= MCE_PANIC_SEVERITY) {
- m->bank = i;
mce_read_aux(m, i);
*msg = tmp;
return 1;
@@ -1232,8 +1220,8 @@ void do_machine_check(struct pt_regs *regs, long error_code)
DECLARE_BITMAP(toclear, MAX_NR_BANKS);
struct mca_config *cfg = &mca_cfg;
int cpu = smp_processor_id();
- char *msg = "Unknown";
struct mce m, *final;
+ char *msg = NULL;
int worst = 0;
/*
@@ -1365,7 +1353,7 @@ void do_machine_check(struct pt_regs *regs, long error_code)
ist_end_non_atomic();
} else {
if (!fixup_exception(regs, X86_TRAP_MC, error_code, 0))
- mce_panic("Failed kernel mode recovery", &m, NULL);
+ mce_panic("Failed kernel mode recovery", &m, msg);
}
out_ist:
@@ -2041,7 +2029,7 @@ int __init mcheck_init(void)
{
mcheck_intel_therm_init();
mce_register_decode_chain(&first_nb);
- mce_register_decode_chain(&mce_srao_nb);
+ mce_register_decode_chain(&mce_uc_nb);
mce_register_decode_chain(&mce_default_nb);
mcheck_vendor_init_severity();
diff --git a/arch/x86/kernel/cpu/mce/inject.c b/arch/x86/kernel/cpu/mce/inject.c
index 1f30117b24ba..3413b41b8d55 100644
--- a/arch/x86/kernel/cpu/mce/inject.c
+++ b/arch/x86/kernel/cpu/mce/inject.c
@@ -494,7 +494,7 @@ static void do_inject(void)
i_mce.status |= MCI_STATUS_SYNDV;
if (inj_type == SW_INJ) {
- mce_inject_log(&i_mce);
+ mce_log(&i_mce);
return;
}
diff --git a/arch/x86/kernel/cpu/mce/intel.c b/arch/x86/kernel/cpu/mce/intel.c
index e270d0770134..5627b1091b85 100644
--- a/arch/x86/kernel/cpu/mce/intel.c
+++ b/arch/x86/kernel/cpu/mce/intel.c
@@ -115,15 +115,16 @@ static bool lmce_supported(void)
/*
* BIOS should indicate support for LMCE by setting bit 20 in
- * IA32_FEATURE_CONTROL without which touching MCG_EXT_CTL will
- * generate a #GP fault.
+ * IA32_FEAT_CTL without which touching MCG_EXT_CTL will generate a #GP
+ * fault. The MSR must also be locked for LMCE_ENABLED to take effect.
+ * WARN if the MSR isn't locked as init_ia32_feat_ctl() unconditionally
+ * locks the MSR in the event that it wasn't already locked by BIOS.
*/
- rdmsrl(MSR_IA32_FEATURE_CONTROL, tmp);
- if ((tmp & (FEATURE_CONTROL_LOCKED | FEATURE_CONTROL_LMCE)) ==
- (FEATURE_CONTROL_LOCKED | FEATURE_CONTROL_LMCE))
- return true;
+ rdmsrl(MSR_IA32_FEAT_CTL, tmp);
+ if (WARN_ON_ONCE(!(tmp & FEAT_CTL_LOCKED)))
+ return false;
- return false;
+ return tmp & FEAT_CTL_LMCE_ENABLED;
}
bool mce_intel_cmci_poll(void)
diff --git a/arch/x86/kernel/cpu/mce/internal.h b/arch/x86/kernel/cpu/mce/internal.h
index 842b273bce31..b785c0d0b590 100644
--- a/arch/x86/kernel/cpu/mce/internal.h
+++ b/arch/x86/kernel/cpu/mce/internal.h
@@ -84,8 +84,6 @@ static inline int apei_clear_mce(u64 record_id)
}
#endif
-void mce_inject_log(struct mce *m);
-
/*
* We consider records to be equivalent if bank+status+addr+misc all match.
* This is only used when the system is going down because of a fatal error
diff --git a/arch/x86/kernel/cpu/mce/therm_throt.c b/arch/x86/kernel/cpu/mce/therm_throt.c
index b38010b541d6..58b4ee3cda77 100644
--- a/arch/x86/kernel/cpu/mce/therm_throt.c
+++ b/arch/x86/kernel/cpu/mce/therm_throt.c
@@ -235,7 +235,7 @@ static void get_therm_status(int level, bool *proc_hot, u8 *temp)
*temp = (msr_val >> 16) & 0x7F;
}
-static void throttle_active_work(struct work_struct *work)
+static void __maybe_unused throttle_active_work(struct work_struct *work)
{
struct _thermal_state *state = container_of(to_delayed_work(work),
struct _thermal_state, therm_work);
@@ -467,6 +467,7 @@ static int thermal_throttle_online(unsigned int cpu)
{
struct thermal_state *state = &per_cpu(thermal_state, cpu);
struct device *dev = get_cpu_device(cpu);
+ u32 l;
state->package_throttle.level = PACKAGE_LEVEL;
state->core_throttle.level = CORE_LEVEL;
@@ -474,6 +475,10 @@ static int thermal_throttle_online(unsigned int cpu)
INIT_DELAYED_WORK(&state->package_throttle.therm_work, throttle_active_work);
INIT_DELAYED_WORK(&state->core_throttle.therm_work, throttle_active_work);
+ /* Unmask the thermal vector after the above workqueues are initialized. */
+ l = apic_read(APIC_LVTTHMR);
+ apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED);
+
return thermal_throttle_add_dev(dev, cpu);
}
@@ -722,10 +727,6 @@ void intel_init_thermal(struct cpuinfo_x86 *c)
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
wrmsr(MSR_IA32_MISC_ENABLE, l | MSR_IA32_MISC_ENABLE_TM1, h);
- /* Unmask the thermal vector: */
- l = apic_read(APIC_LVTTHMR);
- apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED);
-
pr_info_once("CPU0: Thermal monitoring enabled (%s)\n",
tm2 ? "TM2" : "TM1");
diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh
index aed45b8895d5..1db560ed2ca3 100644
--- a/arch/x86/kernel/cpu/mkcapflags.sh
+++ b/arch/x86/kernel/cpu/mkcapflags.sh
@@ -6,8 +6,7 @@
set -e
-IN=$1
-OUT=$2
+OUT=$1
dump_array()
{
@@ -15,6 +14,7 @@ dump_array()
SIZE=$2
PFX=$3
POSTFIX=$4
+ IN=$5
PFX_SZ=$(echo $PFX | wc -c)
TABS="$(printf '\t\t\t\t\t')"
@@ -57,11 +57,18 @@ trap 'rm "$OUT"' EXIT
echo "#endif"
echo ""
- dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" ""
+ dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" "" $2
echo ""
- dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32"
+ dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32" $2
+ echo ""
+ echo "#ifdef CONFIG_X86_VMX_FEATURE_NAMES"
+ echo "#ifndef _ASM_X86_VMXFEATURES_H"
+ echo "#include <asm/vmxfeatures.h>"
+ echo "#endif"
+ dump_array "x86_vmx_flags" "NVMXINTS*32" "VMX_FEATURE_" "" $3
+ echo "#endif /* CONFIG_X86_VMX_FEATURE_NAMES */"
) > $OUT
trap - EXIT
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index aa5c064a6a22..51b9190c628b 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -15,7 +15,7 @@
#include <asm/tlbflush.h>
#include <asm/mtrr.h>
#include <asm/msr.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include "mtrr.h"
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 4d36dcc1cf87..da532f656a7b 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -101,9 +101,6 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
int length;
size_t linelen;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
memset(line, 0, LINE_SIZE);
len = min_t(size_t, len, LINE_SIZE - 1);
@@ -226,8 +223,6 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
#ifdef CONFIG_COMPAT
case MTRRIOC32_ADD_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err =
mtrr_file_add(sentry.base, sentry.size, sentry.type, true,
file, 0);
@@ -236,24 +231,18 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
#ifdef CONFIG_COMPAT
case MTRRIOC32_SET_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err = mtrr_add(sentry.base, sentry.size, sentry.type, false);
break;
case MTRRIOC_DEL_ENTRY:
#ifdef CONFIG_COMPAT
case MTRRIOC32_DEL_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err = mtrr_file_del(sentry.base, sentry.size, file, 0);
break;
case MTRRIOC_KILL_ENTRY:
#ifdef CONFIG_COMPAT
case MTRRIOC32_KILL_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err = mtrr_del(-1, sentry.base, sentry.size);
break;
case MTRRIOC_GET_ENTRY:
@@ -279,8 +268,6 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
#ifdef CONFIG_COMPAT
case MTRRIOC32_ADD_PAGE_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err =
mtrr_file_add(sentry.base, sentry.size, sentry.type, true,
file, 1);
@@ -289,8 +276,6 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
#ifdef CONFIG_COMPAT
case MTRRIOC32_SET_PAGE_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err =
mtrr_add_page(sentry.base, sentry.size, sentry.type, false);
break;
@@ -298,16 +283,12 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
#ifdef CONFIG_COMPAT
case MTRRIOC32_DEL_PAGE_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err = mtrr_file_del(sentry.base, sentry.size, file, 1);
break;
case MTRRIOC_KILL_PAGE_ENTRY:
#ifdef CONFIG_COMPAT
case MTRRIOC32_KILL_PAGE_ENTRY:
#endif
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
err = mtrr_del_page(-1, sentry.base, sentry.size);
break;
case MTRRIOC_GET_PAGE_ENTRY:
@@ -373,28 +354,6 @@ static int mtrr_close(struct inode *ino, struct file *file)
return single_release(ino, file);
}
-static int mtrr_seq_show(struct seq_file *seq, void *offset);
-
-static int mtrr_open(struct inode *inode, struct file *file)
-{
- if (!mtrr_if)
- return -EIO;
- if (!mtrr_if->get)
- return -ENXIO;
- return single_open(file, mtrr_seq_show, NULL);
-}
-
-static const struct file_operations mtrr_fops = {
- .owner = THIS_MODULE,
- .open = mtrr_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .write = mtrr_write,
- .unlocked_ioctl = mtrr_ioctl,
- .compat_ioctl = mtrr_ioctl,
- .release = mtrr_close,
-};
-
static int mtrr_seq_show(struct seq_file *seq, void *offset)
{
char factor;
@@ -426,6 +385,28 @@ static int mtrr_seq_show(struct seq_file *seq, void *offset)
return 0;
}
+static int mtrr_open(struct inode *inode, struct file *file)
+{
+ if (!mtrr_if)
+ return -EIO;
+ if (!mtrr_if->get)
+ return -ENXIO;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ return single_open(file, mtrr_seq_show, NULL);
+}
+
+static const struct file_operations mtrr_fops = {
+ .owner = THIS_MODULE,
+ .open = mtrr_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = mtrr_write,
+ .unlocked_ioctl = mtrr_ioctl,
+ .compat_ioctl = mtrr_ioctl,
+ .release = mtrr_close,
+};
+
static int __init mtrr_if_init(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.c b/arch/x86/kernel/cpu/mtrr/mtrr.c
index 507039c20128..6a80f36b5d59 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.c
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.c
@@ -52,7 +52,7 @@
#include <asm/e820/api.h>
#include <asm/mtrr.h>
#include <asm/msr.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include "mtrr.h"
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index cb2e49810d68..4eec8889b0ff 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -7,6 +7,10 @@
#include "cpu.h"
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+extern const char * const x86_vmx_flags[NVMXINTS*32];
+#endif
+
/*
* Get CPU information for use by the procfs.
*/
@@ -102,6 +106,17 @@ static int show_cpuinfo(struct seq_file *m, void *v)
if (cpu_has(c, i) && x86_cap_flags[i] != NULL)
seq_printf(m, " %s", x86_cap_flags[i]);
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+ if (cpu_has(c, X86_FEATURE_VMX) && c->vmx_capability[0]) {
+ seq_puts(m, "\nvmx flags\t:");
+ for (i = 0; i < 32*NVMXINTS; i++) {
+ if (test_bit(i, (unsigned long *)c->vmx_capability) &&
+ x86_vmx_flags[i] != NULL)
+ seq_printf(m, " %s", x86_vmx_flags[i]);
+ }
+ }
+#endif
+
seq_puts(m, "\nbugs\t\t:");
for (i = 0; i < 32*NBUGINTS; i++) {
unsigned int bug_bit = 32*NCAPINTS + i;
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index 03eb90d00af0..89049b343c7a 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -618,7 +618,7 @@ static void domain_remove_cpu(int cpu, struct rdt_resource *r)
if (static_branch_unlikely(&rdt_mon_enable_key))
rmdir_mondata_subdir_allrdtgrp(r, d->id);
list_del(&d->list);
- if (is_mbm_enabled())
+ if (r->mon_capable && is_mbm_enabled())
cancel_delayed_work(&d->mbm_over);
if (is_llc_occupancy_enabled() && has_busy_rmid(r, d)) {
/*
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index e49b77283924..181c992f448c 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -57,6 +57,7 @@ static inline struct rdt_fs_context *rdt_fc2context(struct fs_context *fc)
}
DECLARE_STATIC_KEY_FALSE(rdt_enable_key);
+DECLARE_STATIC_KEY_FALSE(rdt_mon_enable_key);
/**
* struct mon_evt - Entry in the event list of a resource
diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c
index 397206f23d14..773124b0e18a 100644
--- a/arch/x86/kernel/cpu/resctrl/monitor.c
+++ b/arch/x86/kernel/cpu/resctrl/monitor.c
@@ -514,7 +514,7 @@ void mbm_handle_overflow(struct work_struct *work)
mutex_lock(&rdtgroup_mutex);
- if (!static_branch_likely(&rdt_enable_key))
+ if (!static_branch_likely(&rdt_mon_enable_key))
goto out_unlock;
d = get_domain_from_cpu(cpu, &rdt_resources_all[RDT_RESOURCE_L3]);
@@ -543,7 +543,7 @@ void mbm_setup_overflow_handler(struct rdt_domain *dom, unsigned long delay_ms)
unsigned long delay = msecs_to_jiffies(delay_ms);
int cpu;
- if (!static_branch_likely(&rdt_enable_key))
+ if (!static_branch_likely(&rdt_mon_enable_key))
return;
cpu = cpumask_any(&dom->cpu_mask);
dom->mbm_work_cpu = cpu;
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 2e3b06d6bbc6..1504bcabc63c 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -532,11 +532,15 @@ static void move_myself(struct callback_head *head)
kfree(rdtgrp);
}
+ if (unlikely(current->flags & PF_EXITING))
+ goto out;
+
preempt_disable();
/* update PQR_ASSOC MSR to make resource group go into effect */
resctrl_sched_in();
preempt_enable();
+out:
kfree(callback);
}
@@ -725,6 +729,92 @@ static int rdtgroup_tasks_show(struct kernfs_open_file *of,
return ret;
}
+#ifdef CONFIG_PROC_CPU_RESCTRL
+
+/*
+ * A task can only be part of one resctrl control group and of one monitor
+ * group which is associated to that control group.
+ *
+ * 1) res:
+ * mon:
+ *
+ * resctrl is not available.
+ *
+ * 2) res:/
+ * mon:
+ *
+ * Task is part of the root resctrl control group, and it is not associated
+ * to any monitor group.
+ *
+ * 3) res:/
+ * mon:mon0
+ *
+ * Task is part of the root resctrl control group and monitor group mon0.
+ *
+ * 4) res:group0
+ * mon:
+ *
+ * Task is part of resctrl control group group0, and it is not associated
+ * to any monitor group.
+ *
+ * 5) res:group0
+ * mon:mon1
+ *
+ * Task is part of resctrl control group group0 and monitor group mon1.
+ */
+int proc_resctrl_show(struct seq_file *s, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *tsk)
+{
+ struct rdtgroup *rdtg;
+ int ret = 0;
+
+ mutex_lock(&rdtgroup_mutex);
+
+ /* Return empty if resctrl has not been mounted. */
+ if (!static_branch_unlikely(&rdt_enable_key)) {
+ seq_puts(s, "res:\nmon:\n");
+ goto unlock;
+ }
+
+ list_for_each_entry(rdtg, &rdt_all_groups, rdtgroup_list) {
+ struct rdtgroup *crg;
+
+ /*
+ * Task information is only relevant for shareable
+ * and exclusive groups.
+ */
+ if (rdtg->mode != RDT_MODE_SHAREABLE &&
+ rdtg->mode != RDT_MODE_EXCLUSIVE)
+ continue;
+
+ if (rdtg->closid != tsk->closid)
+ continue;
+
+ seq_printf(s, "res:%s%s\n", (rdtg == &rdtgroup_default) ? "/" : "",
+ rdtg->kn->name);
+ seq_puts(s, "mon:");
+ list_for_each_entry(crg, &rdtg->mon.crdtgrp_list,
+ mon.crdtgrp_list) {
+ if (tsk->rmid != crg->mon.rmid)
+ continue;
+ seq_printf(s, "%s", crg->kn->name);
+ break;
+ }
+ seq_putc(s, '\n');
+ goto unlock;
+ }
+ /*
+ * The above search should succeed. Otherwise return
+ * with an error.
+ */
+ ret = -ENOENT;
+unlock:
+ mutex_unlock(&rdtgroup_mutex);
+
+ return ret;
+}
+#endif
+
static int rdt_last_cmd_status_show(struct kernfs_open_file *of,
struct seq_file *seq, void *v)
{
@@ -1741,9 +1831,6 @@ static int set_cache_qos_cfg(int level, bool enable)
struct rdt_domain *d;
int cpu;
- if (!zalloc_cpumask_var(&cpu_mask, GFP_KERNEL))
- return -ENOMEM;
-
if (level == RDT_RESOURCE_L3)
update = l3_qos_cfg_update;
else if (level == RDT_RESOURCE_L2)
@@ -1751,6 +1838,9 @@ static int set_cache_qos_cfg(int level, bool enable)
else
return -EINVAL;
+ if (!zalloc_cpumask_var(&cpu_mask, GFP_KERNEL))
+ return -ENOMEM;
+
r_l = &rdt_resources_all[level];
list_for_each_entry(d, &r_l->domains, list) {
/* Pick one CPU from each domain instance to update MSR */
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index adf9b71386ef..62b137c3c97a 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -4,7 +4,7 @@
*/
#include <linux/cpu.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/apic.h>
#include <asm/processor.h>
diff --git a/arch/x86/kernel/cpu/topology.c b/arch/x86/kernel/cpu/topology.c
index ee48c3fc8a65..d3a0791bc052 100644
--- a/arch/x86/kernel/cpu/topology.c
+++ b/arch/x86/kernel/cpu/topology.c
@@ -7,7 +7,7 @@
#include <linux/cpu.h>
#include <asm/apic.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/processor.h>
#include "cpu.h"
diff --git a/arch/x86/kernel/cpu/tsx.c b/arch/x86/kernel/cpu/tsx.c
index 3e20d322bc98..e2ad30e474f8 100644
--- a/arch/x86/kernel/cpu/tsx.c
+++ b/arch/x86/kernel/cpu/tsx.c
@@ -14,6 +14,9 @@
#include "cpu.h"
+#undef pr_fmt
+#define pr_fmt(fmt) "tsx: " fmt
+
enum tsx_ctrl_states tsx_ctrl_state __ro_after_init = TSX_CTRL_NOT_SUPPORTED;
void tsx_disable(void)
@@ -99,7 +102,7 @@ void __init tsx_init(void)
tsx_ctrl_state = x86_get_tsx_auto_mode();
} else {
tsx_ctrl_state = TSX_CTRL_DISABLE;
- pr_err("tsx: invalid option, defaulting to off\n");
+ pr_err("invalid option, defaulting to off\n");
}
} else {
/* tsx= not provided */
@@ -115,11 +118,12 @@ void __init tsx_init(void)
tsx_disable();
/*
- * tsx_disable() will change the state of the
- * RTM CPUID bit. Clear it here since it is now
- * expected to be not set.
+ * tsx_disable() will change the state of the RTM and HLE CPUID
+ * bits. Clear them here since they are now expected to be not
+ * set.
*/
setup_clear_cpu_cap(X86_FEATURE_RTM);
+ setup_clear_cpu_cap(X86_FEATURE_HLE);
} else if (tsx_ctrl_state == TSX_CTRL_ENABLE) {
/*
@@ -131,10 +135,10 @@ void __init tsx_init(void)
tsx_enable();
/*
- * tsx_enable() will change the state of the
- * RTM CPUID bit. Force it here since it is now
- * expected to be set.
+ * tsx_enable() will change the state of the RTM and HLE CPUID
+ * bits. Force them here since they are now expected to be set.
*/
setup_force_cpu_cap(X86_FEATURE_RTM);
+ setup_force_cpu_cap(X86_FEATURE_HLE);
}
}
diff --git a/arch/x86/kernel/cpu/zhaoxin.c b/arch/x86/kernel/cpu/zhaoxin.c
index 8e6f2f4b4afe..df1358ba622b 100644
--- a/arch/x86/kernel/cpu/zhaoxin.c
+++ b/arch/x86/kernel/cpu/zhaoxin.c
@@ -16,13 +16,6 @@
#define RNG_ENABLED (1 << 3)
#define RNG_ENABLE (1 << 8) /* MSR_ZHAOXIN_RNG */
-#define X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW 0x00200000
-#define X86_VMX_FEATURE_PROC_CTLS_VNMI 0x00400000
-#define X86_VMX_FEATURE_PROC_CTLS_2ND_CTLS 0x80000000
-#define X86_VMX_FEATURE_PROC_CTLS2_VIRT_APIC 0x00000001
-#define X86_VMX_FEATURE_PROC_CTLS2_EPT 0x00000002
-#define X86_VMX_FEATURE_PROC_CTLS2_VPID 0x00000020
-
static void init_zhaoxin_cap(struct cpuinfo_x86 *c)
{
u32 lo, hi;
@@ -58,8 +51,6 @@ static void init_zhaoxin_cap(struct cpuinfo_x86 *c)
if (c->x86 >= 0x6)
set_cpu_cap(c, X86_FEATURE_REP_GOOD);
-
- cpu_detect_cache_sizes(c);
}
static void early_init_zhaoxin(struct cpuinfo_x86 *c)
@@ -89,31 +80,6 @@ static void early_init_zhaoxin(struct cpuinfo_x86 *c)
}
-static void zhaoxin_detect_vmx_virtcap(struct cpuinfo_x86 *c)
-{
- u32 vmx_msr_low, vmx_msr_high, msr_ctl, msr_ctl2;
-
- rdmsr(MSR_IA32_VMX_PROCBASED_CTLS, vmx_msr_low, vmx_msr_high);
- msr_ctl = vmx_msr_high | vmx_msr_low;
-
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW)
- set_cpu_cap(c, X86_FEATURE_TPR_SHADOW);
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_VNMI)
- set_cpu_cap(c, X86_FEATURE_VNMI);
- if (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_2ND_CTLS) {
- rdmsr(MSR_IA32_VMX_PROCBASED_CTLS2,
- vmx_msr_low, vmx_msr_high);
- msr_ctl2 = vmx_msr_high | vmx_msr_low;
- if ((msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_VIRT_APIC) &&
- (msr_ctl & X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW))
- set_cpu_cap(c, X86_FEATURE_FLEXPRIORITY);
- if (msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_EPT)
- set_cpu_cap(c, X86_FEATURE_EPT);
- if (msr_ctl2 & X86_VMX_FEATURE_PROC_CTLS2_VPID)
- set_cpu_cap(c, X86_FEATURE_VPID);
- }
-}
-
static void init_zhaoxin(struct cpuinfo_x86 *c)
{
early_init_zhaoxin(c);
@@ -141,8 +107,7 @@ static void init_zhaoxin(struct cpuinfo_x86 *c)
set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
#endif
- if (cpu_has(c, X86_FEATURE_VMX))
- zhaoxin_detect_vmx_virtcap(c);
+ init_ia32_feat_ctl(c);
}
#ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 00fc55ac7ffa..fd87b59452a3 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -370,7 +370,7 @@ int crash_setup_memmap_entries(struct kimage *image, struct boot_params *params)
/* Add crashk_low_res region */
if (crashk_low_res.end) {
ei.addr = crashk_low_res.start;
- ei.size = crashk_low_res.end - crashk_low_res.start + 1;
+ ei.size = resource_size(&crashk_low_res);
ei.type = E820_TYPE_RAM;
add_e820_entry(params, &ei);
}
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index e07424e19274..ae64ec7f752f 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -365,7 +365,7 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
}
NOKPROBE_SYMBOL(oops_end);
-int __die(const char *str, struct pt_regs *regs, long err)
+static void __die_header(const char *str, struct pt_regs *regs, long err)
{
const char *pr = "";
@@ -384,7 +384,11 @@ int __die(const char *str, struct pt_regs *regs, long err)
IS_ENABLED(CONFIG_KASAN) ? " KASAN" : "",
IS_ENABLED(CONFIG_PAGE_TABLE_ISOLATION) ?
(boot_cpu_has(X86_FEATURE_PTI) ? " PTI" : " NOPTI") : "");
+}
+NOKPROBE_SYMBOL(__die_header);
+static int __die_body(const char *str, struct pt_regs *regs, long err)
+{
show_regs(regs);
print_modules();
@@ -394,6 +398,13 @@ int __die(const char *str, struct pt_regs *regs, long err)
return 0;
}
+NOKPROBE_SYMBOL(__die_body);
+
+int __die(const char *str, struct pt_regs *regs, long err)
+{
+ __die_header(str, regs, err);
+ return __die_body(str, regs, err);
+}
NOKPROBE_SYMBOL(__die);
/*
@@ -410,6 +421,19 @@ void die(const char *str, struct pt_regs *regs, long err)
oops_end(flags, regs, sig);
}
+void die_addr(const char *str, struct pt_regs *regs, long err, long gp_addr)
+{
+ unsigned long flags = oops_begin();
+ int sig = SIGSEGV;
+
+ __die_header(str, regs, err);
+ if (gp_addr)
+ kasan_non_canonical_hook(gp_addr);
+ if (__die_body(str, regs, err))
+ sig = 0;
+ oops_end(flags, regs, sig);
+}
+
void show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_DEFAULT);
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 4cba91ec8049..2f9ec14be3b1 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -710,8 +710,12 @@ static struct chipset early_qrk[] __initdata = {
*/
{ PCI_VENDOR_ID_INTEL, 0x0f00,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+ { PCI_VENDOR_ID_INTEL, 0x3e20,
+ PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x3ec4,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+ { PCI_VENDOR_ID_INTEL, 0x8a12,
+ PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_BROADCOM, 0x4331,
PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
{}
diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c
index 0071b794ed19..400a05e1c1c5 100644
--- a/arch/x86/kernel/fpu/signal.c
+++ b/arch/x86/kernel/fpu/signal.c
@@ -352,6 +352,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
fpregs_unlock();
return 0;
}
+ fpregs_deactivate(fpu);
fpregs_unlock();
}
@@ -403,6 +404,8 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
}
if (!ret)
fpregs_mark_activate();
+ else
+ fpregs_deactivate(fpu);
fpregs_unlock();
err_out:
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index fa31470bbf24..a1806598aaa4 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -107,23 +107,20 @@ int cpu_has_xfeatures(u64 xfeatures_needed, const char **feature_name)
}
EXPORT_SYMBOL_GPL(cpu_has_xfeatures);
-static int xfeature_is_supervisor(int xfeature_nr)
+static bool xfeature_is_supervisor(int xfeature_nr)
{
/*
- * We currently do not support supervisor states, but if
- * we did, we could find out like this.
- *
- * SDM says: If state component 'i' is a user state component,
- * ECX[0] return 0; if state component i is a supervisor
- * state component, ECX[0] returns 1.
+ * Extended State Enumeration Sub-leaves (EAX = 0DH, ECX = n, n > 1)
+ * returns ECX[0] set to (1) for a supervisor state, and cleared (0)
+ * for a user state.
*/
u32 eax, ebx, ecx, edx;
cpuid_count(XSTATE_CPUID, xfeature_nr, &eax, &ebx, &ecx, &edx);
- return !!(ecx & 1);
+ return ecx & 1;
}
-static int xfeature_is_user(int xfeature_nr)
+static bool xfeature_is_user(int xfeature_nr)
{
return !xfeature_is_supervisor(xfeature_nr);
}
@@ -419,7 +416,8 @@ static void __init setup_init_fpu_buf(void)
print_xstate_features();
if (boot_cpu_has(X86_FEATURE_XSAVES))
- init_fpstate.xsave.header.xcomp_bv = (u64)1 << 63 | xfeatures_mask;
+ init_fpstate.xsave.header.xcomp_bv = XCOMP_BV_COMPACTED_FORMAT |
+ xfeatures_mask;
/*
* Init all the features state with header.xfeatures being 0x0
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 024c3053dbba..37a0aeaf89e7 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -23,6 +23,7 @@
#include <linux/list.h>
#include <linux/module.h>
#include <linux/memory.h>
+#include <linux/vmalloc.h>
#include <trace/syscall.h>
@@ -34,6 +35,8 @@
#ifdef CONFIG_DYNAMIC_FTRACE
+static int ftrace_poke_late = 0;
+
int ftrace_arch_code_modify_prepare(void)
__acquires(&text_mutex)
{
@@ -43,84 +46,37 @@ int ftrace_arch_code_modify_prepare(void)
* ftrace has it set to "read/write".
*/
mutex_lock(&text_mutex);
- set_kernel_text_rw();
- set_all_modules_text_rw();
+ ftrace_poke_late = 1;
return 0;
}
int ftrace_arch_code_modify_post_process(void)
__releases(&text_mutex)
{
- set_all_modules_text_ro();
- set_kernel_text_ro();
+ /*
+ * ftrace_make_{call,nop}() may be called during
+ * module load, and we need to finish the text_poke_queue()
+ * that they do, here.
+ */
+ text_poke_finish();
+ ftrace_poke_late = 0;
mutex_unlock(&text_mutex);
return 0;
}
-union ftrace_code_union {
- char code[MCOUNT_INSN_SIZE];
- struct {
- unsigned char op;
- int offset;
- } __attribute__((packed));
-};
-
-static int ftrace_calc_offset(long ip, long addr)
-{
- return (int)(addr - ip);
-}
-
-static unsigned char *
-ftrace_text_replace(unsigned char op, unsigned long ip, unsigned long addr)
+static const char *ftrace_nop_replace(void)
{
- static union ftrace_code_union calc;
-
- calc.op = op;
- calc.offset = ftrace_calc_offset(ip + MCOUNT_INSN_SIZE, addr);
-
- return calc.code;
-}
-
-static unsigned char *
-ftrace_call_replace(unsigned long ip, unsigned long addr)
-{
- return ftrace_text_replace(0xe8, ip, addr);
-}
-
-static inline int
-within(unsigned long addr, unsigned long start, unsigned long end)
-{
- return addr >= start && addr < end;
+ return ideal_nops[NOP_ATOMIC5];
}
-static unsigned long text_ip_addr(unsigned long ip)
+static const char *ftrace_call_replace(unsigned long ip, unsigned long addr)
{
- /*
- * On x86_64, kernel text mappings are mapped read-only, so we use
- * the kernel identity mapping instead of the kernel text mapping
- * to modify the kernel text.
- *
- * For 32bit kernels, these mappings are same and we can use
- * kernel identity mapping to modify code.
- */
- if (within(ip, (unsigned long)_text, (unsigned long)_etext))
- ip = (unsigned long)__va(__pa_symbol(ip));
-
- return ip;
+ return text_gen_insn(CALL_INSN_OPCODE, (void *)ip, (void *)addr);
}
-static const unsigned char *ftrace_nop_replace(void)
+static int ftrace_verify_code(unsigned long ip, const char *old_code)
{
- return ideal_nops[NOP_ATOMIC5];
-}
-
-static int
-ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
- unsigned const char *new_code)
-{
- unsigned char replaced[MCOUNT_INSN_SIZE];
-
- ftrace_expected = old_code;
+ char cur_code[MCOUNT_INSN_SIZE];
/*
* Note:
@@ -129,31 +85,46 @@ ftrace_modify_code_direct(unsigned long ip, unsigned const char *old_code,
* Carefully read and modify the code with probe_kernel_*(), and make
* sure what we read is what we expected it to be before modifying it.
*/
-
/* read the text we want to modify */
- if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
+ if (probe_kernel_read(cur_code, (void *)ip, MCOUNT_INSN_SIZE)) {
+ WARN_ON(1);
return -EFAULT;
+ }
/* Make sure it is what we expect it to be */
- if (memcmp(replaced, old_code, MCOUNT_INSN_SIZE) != 0)
+ if (memcmp(cur_code, old_code, MCOUNT_INSN_SIZE) != 0) {
+ WARN_ON(1);
return -EINVAL;
+ }
- ip = text_ip_addr(ip);
-
- /* replace the text with the new text */
- if (probe_kernel_write((void *)ip, new_code, MCOUNT_INSN_SIZE))
- return -EPERM;
+ return 0;
+}
- sync_core();
+/*
+ * Marked __ref because it calls text_poke_early() which is .init.text. That is
+ * ok because that call will happen early, during boot, when .init sections are
+ * still present.
+ */
+static int __ref
+ftrace_modify_code_direct(unsigned long ip, const char *old_code,
+ const char *new_code)
+{
+ int ret = ftrace_verify_code(ip, old_code);
+ if (ret)
+ return ret;
+ /* replace the text with the new text */
+ if (ftrace_poke_late)
+ text_poke_queue((void *)ip, new_code, MCOUNT_INSN_SIZE, NULL);
+ else
+ text_poke_early((void *)ip, new_code, MCOUNT_INSN_SIZE);
return 0;
}
-int ftrace_make_nop(struct module *mod,
- struct dyn_ftrace *rec, unsigned long addr)
+int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, unsigned long addr)
{
- unsigned const char *new, *old;
unsigned long ip = rec->ip;
+ const char *new, *old;
old = ftrace_call_replace(ip, addr);
new = ftrace_nop_replace();
@@ -167,19 +138,20 @@ int ftrace_make_nop(struct module *mod,
* just modify the code directly.
*/
if (addr == MCOUNT_ADDR)
- return ftrace_modify_code_direct(rec->ip, old, new);
+ return ftrace_modify_code_direct(ip, old, new);
- ftrace_expected = NULL;
-
- /* Normal cases use add_brk_on_nop */
+ /*
+ * x86 overrides ftrace_replace_code -- this function will never be used
+ * in this case.
+ */
WARN_ONCE(1, "invalid use of ftrace_make_nop");
return -EINVAL;
}
int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
{
- unsigned const char *new, *old;
unsigned long ip = rec->ip;
+ const char *new, *old;
old = ftrace_nop_replace();
new = ftrace_call_replace(ip, addr);
@@ -189,43 +161,6 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
}
/*
- * The modifying_ftrace_code is used to tell the breakpoint
- * handler to call ftrace_int3_handler(). If it fails to
- * call this handler for a breakpoint added by ftrace, then
- * the kernel may crash.
- *
- * As atomic_writes on x86 do not need a barrier, we do not
- * need to add smp_mb()s for this to work. It is also considered
- * that we can not read the modifying_ftrace_code before
- * executing the breakpoint. That would be quite remarkable if
- * it could do that. Here's the flow that is required:
- *
- * CPU-0 CPU-1
- *
- * atomic_inc(mfc);
- * write int3s
- * <trap-int3> // implicit (r)mb
- * if (atomic_read(mfc))
- * call ftrace_int3_handler()
- *
- * Then when we are finished:
- *
- * atomic_dec(mfc);
- *
- * If we hit a breakpoint that was not set by ftrace, it does not
- * matter if ftrace_int3_handler() is called or not. It will
- * simply be ignored. But it is crucial that a ftrace nop/caller
- * breakpoint is handled. No other user should ever place a
- * breakpoint on an ftrace nop/caller location. It must only
- * be done by this code.
- */
-atomic_t modifying_ftrace_code __read_mostly;
-
-static int
-ftrace_modify_code(unsigned long ip, unsigned const char *old_code,
- unsigned const char *new_code);
-
-/*
* Should never be called:
* As it is only called by __ftrace_replace_code() which is called by
* ftrace_replace_code() that x86 overrides, and by ftrace_update_code()
@@ -237,452 +172,84 @@ int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr,
unsigned long addr)
{
WARN_ON(1);
- ftrace_expected = NULL;
return -EINVAL;
}
-static unsigned long ftrace_update_func;
-static unsigned long ftrace_update_func_call;
-
-static int update_ftrace_func(unsigned long ip, void *new)
-{
- unsigned char old[MCOUNT_INSN_SIZE];
- int ret;
-
- memcpy(old, (void *)ip, MCOUNT_INSN_SIZE);
-
- ftrace_update_func = ip;
- /* Make sure the breakpoints see the ftrace_update_func update */
- smp_wmb();
-
- /* See comment above by declaration of modifying_ftrace_code */
- atomic_inc(&modifying_ftrace_code);
-
- ret = ftrace_modify_code(ip, old, new);
-
- atomic_dec(&modifying_ftrace_code);
-
- return ret;
-}
-
int ftrace_update_ftrace_func(ftrace_func_t func)
{
- unsigned long ip = (unsigned long)(&ftrace_call);
- unsigned char *new;
- int ret;
-
- ftrace_update_func_call = (unsigned long)func;
-
- new = ftrace_call_replace(ip, (unsigned long)func);
- ret = update_ftrace_func(ip, new);
-
- /* Also update the regs callback function */
- if (!ret) {
- ip = (unsigned long)(&ftrace_regs_call);
- new = ftrace_call_replace(ip, (unsigned long)func);
- ret = update_ftrace_func(ip, new);
- }
-
- return ret;
-}
-
-static nokprobe_inline int is_ftrace_caller(unsigned long ip)
-{
- if (ip == ftrace_update_func)
- return 1;
-
- return 0;
-}
-
-/*
- * A breakpoint was added to the code address we are about to
- * modify, and this is the handle that will just skip over it.
- * We are either changing a nop into a trace call, or a trace
- * call to a nop. While the change is taking place, we treat
- * it just like it was a nop.
- */
-int ftrace_int3_handler(struct pt_regs *regs)
-{
unsigned long ip;
+ const char *new;
- if (WARN_ON_ONCE(!regs))
- return 0;
-
- ip = regs->ip - INT3_INSN_SIZE;
-
- if (ftrace_location(ip)) {
- int3_emulate_call(regs, (unsigned long)ftrace_regs_caller);
- return 1;
- } else if (is_ftrace_caller(ip)) {
- if (!ftrace_update_func_call) {
- int3_emulate_jmp(regs, ip + CALL_INSN_SIZE);
- return 1;
- }
- int3_emulate_call(regs, ftrace_update_func_call);
- return 1;
- }
-
- return 0;
-}
-NOKPROBE_SYMBOL(ftrace_int3_handler);
-
-static int ftrace_write(unsigned long ip, const char *val, int size)
-{
- ip = text_ip_addr(ip);
-
- if (probe_kernel_write((void *)ip, val, size))
- return -EPERM;
-
- return 0;
-}
-
-static int add_break(unsigned long ip, const char *old)
-{
- unsigned char replaced[MCOUNT_INSN_SIZE];
- unsigned char brk = BREAKPOINT_INSTRUCTION;
-
- if (probe_kernel_read(replaced, (void *)ip, MCOUNT_INSN_SIZE))
- return -EFAULT;
-
- ftrace_expected = old;
-
- /* Make sure it is what we expect it to be */
- if (memcmp(replaced, old, MCOUNT_INSN_SIZE) != 0)
- return -EINVAL;
-
- return ftrace_write(ip, &brk, 1);
-}
-
-static int add_brk_on_call(struct dyn_ftrace *rec, unsigned long addr)
-{
- unsigned const char *old;
- unsigned long ip = rec->ip;
-
- old = ftrace_call_replace(ip, addr);
-
- return add_break(rec->ip, old);
-}
-
-
-static int add_brk_on_nop(struct dyn_ftrace *rec)
-{
- unsigned const char *old;
-
- old = ftrace_nop_replace();
-
- return add_break(rec->ip, old);
-}
-
-static int add_breakpoints(struct dyn_ftrace *rec, bool enable)
-{
- unsigned long ftrace_addr;
- int ret;
-
- ftrace_addr = ftrace_get_addr_curr(rec);
-
- ret = ftrace_test_record(rec, enable);
-
- switch (ret) {
- case FTRACE_UPDATE_IGNORE:
- return 0;
-
- case FTRACE_UPDATE_MAKE_CALL:
- /* converting nop to call */
- return add_brk_on_nop(rec);
-
- case FTRACE_UPDATE_MODIFY_CALL:
- case FTRACE_UPDATE_MAKE_NOP:
- /* converting a call to a nop */
- return add_brk_on_call(rec, ftrace_addr);
- }
- return 0;
-}
-
-/*
- * On error, we need to remove breakpoints. This needs to
- * be done caefully. If the address does not currently have a
- * breakpoint, we know we are done. Otherwise, we look at the
- * remaining 4 bytes of the instruction. If it matches a nop
- * we replace the breakpoint with the nop. Otherwise we replace
- * it with the call instruction.
- */
-static int remove_breakpoint(struct dyn_ftrace *rec)
-{
- unsigned char ins[MCOUNT_INSN_SIZE];
- unsigned char brk = BREAKPOINT_INSTRUCTION;
- const unsigned char *nop;
- unsigned long ftrace_addr;
- unsigned long ip = rec->ip;
-
- /* If we fail the read, just give up */
- if (probe_kernel_read(ins, (void *)ip, MCOUNT_INSN_SIZE))
- return -EFAULT;
-
- /* If this does not have a breakpoint, we are done */
- if (ins[0] != brk)
- return 0;
-
- nop = ftrace_nop_replace();
-
- /*
- * If the last 4 bytes of the instruction do not match
- * a nop, then we assume that this is a call to ftrace_addr.
- */
- if (memcmp(&ins[1], &nop[1], MCOUNT_INSN_SIZE - 1) != 0) {
- /*
- * For extra paranoidism, we check if the breakpoint is on
- * a call that would actually jump to the ftrace_addr.
- * If not, don't touch the breakpoint, we make just create
- * a disaster.
- */
- ftrace_addr = ftrace_get_addr_new(rec);
- nop = ftrace_call_replace(ip, ftrace_addr);
-
- if (memcmp(&ins[1], &nop[1], MCOUNT_INSN_SIZE - 1) == 0)
- goto update;
-
- /* Check both ftrace_addr and ftrace_old_addr */
- ftrace_addr = ftrace_get_addr_curr(rec);
- nop = ftrace_call_replace(ip, ftrace_addr);
-
- ftrace_expected = nop;
-
- if (memcmp(&ins[1], &nop[1], MCOUNT_INSN_SIZE - 1) != 0)
- return -EINVAL;
- }
-
- update:
- return ftrace_write(ip, nop, 1);
-}
-
-static int add_update_code(unsigned long ip, unsigned const char *new)
-{
- /* skip breakpoint */
- ip++;
- new++;
- return ftrace_write(ip, new, MCOUNT_INSN_SIZE - 1);
-}
-
-static int add_update_call(struct dyn_ftrace *rec, unsigned long addr)
-{
- unsigned long ip = rec->ip;
- unsigned const char *new;
-
- new = ftrace_call_replace(ip, addr);
- return add_update_code(ip, new);
-}
-
-static int add_update_nop(struct dyn_ftrace *rec)
-{
- unsigned long ip = rec->ip;
- unsigned const char *new;
-
- new = ftrace_nop_replace();
- return add_update_code(ip, new);
-}
-
-static int add_update(struct dyn_ftrace *rec, bool enable)
-{
- unsigned long ftrace_addr;
- int ret;
-
- ret = ftrace_test_record(rec, enable);
-
- ftrace_addr = ftrace_get_addr_new(rec);
-
- switch (ret) {
- case FTRACE_UPDATE_IGNORE:
- return 0;
-
- case FTRACE_UPDATE_MODIFY_CALL:
- case FTRACE_UPDATE_MAKE_CALL:
- /* converting nop to call */
- return add_update_call(rec, ftrace_addr);
-
- case FTRACE_UPDATE_MAKE_NOP:
- /* converting a call to a nop */
- return add_update_nop(rec);
- }
-
- return 0;
-}
-
-static int finish_update_call(struct dyn_ftrace *rec, unsigned long addr)
-{
- unsigned long ip = rec->ip;
- unsigned const char *new;
-
- new = ftrace_call_replace(ip, addr);
-
- return ftrace_write(ip, new, 1);
-}
-
-static int finish_update_nop(struct dyn_ftrace *rec)
-{
- unsigned long ip = rec->ip;
- unsigned const char *new;
-
- new = ftrace_nop_replace();
-
- return ftrace_write(ip, new, 1);
-}
-
-static int finish_update(struct dyn_ftrace *rec, bool enable)
-{
- unsigned long ftrace_addr;
- int ret;
-
- ret = ftrace_update_record(rec, enable);
-
- ftrace_addr = ftrace_get_addr_new(rec);
-
- switch (ret) {
- case FTRACE_UPDATE_IGNORE:
- return 0;
-
- case FTRACE_UPDATE_MODIFY_CALL:
- case FTRACE_UPDATE_MAKE_CALL:
- /* converting nop to call */
- return finish_update_call(rec, ftrace_addr);
+ ip = (unsigned long)(&ftrace_call);
+ new = ftrace_call_replace(ip, (unsigned long)func);
+ text_poke_bp((void *)ip, new, MCOUNT_INSN_SIZE, NULL);
- case FTRACE_UPDATE_MAKE_NOP:
- /* converting a call to a nop */
- return finish_update_nop(rec);
- }
+ ip = (unsigned long)(&ftrace_regs_call);
+ new = ftrace_call_replace(ip, (unsigned long)func);
+ text_poke_bp((void *)ip, new, MCOUNT_INSN_SIZE, NULL);
return 0;
}
-static void do_sync_core(void *data)
-{
- sync_core();
-}
-
-static void run_sync(void)
-{
- int enable_irqs;
-
- /* No need to sync if there's only one CPU */
- if (num_online_cpus() == 1)
- return;
-
- enable_irqs = irqs_disabled();
-
- /* We may be called with interrupts disabled (on bootup). */
- if (enable_irqs)
- local_irq_enable();
- on_each_cpu(do_sync_core, NULL, 1);
- if (enable_irqs)
- local_irq_disable();
-}
-
void ftrace_replace_code(int enable)
{
struct ftrace_rec_iter *iter;
struct dyn_ftrace *rec;
- const char *report = "adding breakpoints";
- int count = 0;
+ const char *new, *old;
int ret;
for_ftrace_rec_iter(iter) {
rec = ftrace_rec_iter_record(iter);
- ret = add_breakpoints(rec, enable);
- if (ret)
- goto remove_breakpoints;
- count++;
- }
-
- run_sync();
+ switch (ftrace_test_record(rec, enable)) {
+ case FTRACE_UPDATE_IGNORE:
+ default:
+ continue;
- report = "updating code";
- count = 0;
+ case FTRACE_UPDATE_MAKE_CALL:
+ old = ftrace_nop_replace();
+ break;
- for_ftrace_rec_iter(iter) {
- rec = ftrace_rec_iter_record(iter);
+ case FTRACE_UPDATE_MODIFY_CALL:
+ case FTRACE_UPDATE_MAKE_NOP:
+ old = ftrace_call_replace(rec->ip, ftrace_get_addr_curr(rec));
+ break;
+ }
- ret = add_update(rec, enable);
- if (ret)
- goto remove_breakpoints;
- count++;
+ ret = ftrace_verify_code(rec->ip, old);
+ if (ret) {
+ ftrace_bug(ret, rec);
+ return;
+ }
}
- run_sync();
-
- report = "removing breakpoints";
- count = 0;
-
for_ftrace_rec_iter(iter) {
rec = ftrace_rec_iter_record(iter);
- ret = finish_update(rec, enable);
- if (ret)
- goto remove_breakpoints;
- count++;
- }
+ switch (ftrace_test_record(rec, enable)) {
+ case FTRACE_UPDATE_IGNORE:
+ default:
+ continue;
- run_sync();
+ case FTRACE_UPDATE_MAKE_CALL:
+ case FTRACE_UPDATE_MODIFY_CALL:
+ new = ftrace_call_replace(rec->ip, ftrace_get_addr_new(rec));
+ break;
- return;
+ case FTRACE_UPDATE_MAKE_NOP:
+ new = ftrace_nop_replace();
+ break;
+ }
- remove_breakpoints:
- pr_warn("Failed on %s (%d):\n", report, count);
- ftrace_bug(ret, rec);
- for_ftrace_rec_iter(iter) {
- rec = ftrace_rec_iter_record(iter);
- /*
- * Breakpoints are handled only when this function is in
- * progress. The system could not work with them.
- */
- if (remove_breakpoint(rec))
- BUG();
+ text_poke_queue((void *)rec->ip, new, MCOUNT_INSN_SIZE, NULL);
+ ftrace_update_record(rec, enable);
}
- run_sync();
-}
-
-static int
-ftrace_modify_code(unsigned long ip, unsigned const char *old_code,
- unsigned const char *new_code)
-{
- int ret;
-
- ret = add_break(ip, old_code);
- if (ret)
- goto out;
-
- run_sync();
-
- ret = add_update_code(ip, new_code);
- if (ret)
- goto fail_update;
-
- run_sync();
-
- ret = ftrace_write(ip, new_code, 1);
- /*
- * The breakpoint is handled only when this function is in progress.
- * The system could not work if we could not remove it.
- */
- BUG_ON(ret);
- out:
- run_sync();
- return ret;
-
- fail_update:
- /* Also here the system could not work with the breakpoint */
- if (ftrace_write(ip, old_code, 1))
- BUG();
- goto out;
+ text_poke_finish();
}
void arch_ftrace_update_code(int command)
{
- /* See comment above by declaration of modifying_ftrace_code */
- atomic_inc(&modifying_ftrace_code);
-
ftrace_modify_all_code(command);
-
- atomic_dec(&modifying_ftrace_code);
}
int __init ftrace_dyn_arch_init(void)
@@ -747,6 +314,7 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
unsigned long start_offset;
unsigned long end_offset;
unsigned long op_offset;
+ unsigned long call_offset;
unsigned long offset;
unsigned long npages;
unsigned long size;
@@ -763,10 +331,12 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
start_offset = (unsigned long)ftrace_regs_caller;
end_offset = (unsigned long)ftrace_regs_caller_end;
op_offset = (unsigned long)ftrace_regs_caller_op_ptr;
+ call_offset = (unsigned long)ftrace_regs_call;
} else {
start_offset = (unsigned long)ftrace_caller;
end_offset = (unsigned long)ftrace_epilogue;
op_offset = (unsigned long)ftrace_caller_op_ptr;
+ call_offset = (unsigned long)ftrace_call;
}
size = end_offset - start_offset;
@@ -823,16 +393,21 @@ create_trampoline(struct ftrace_ops *ops, unsigned int *tramp_size)
/* put in the new offset to the ftrace_ops */
memcpy(trampoline + op_offset, &op_ptr, OP_REF_SIZE);
+ /* put in the call to the function */
+ mutex_lock(&text_mutex);
+ call_offset -= start_offset;
+ memcpy(trampoline + call_offset,
+ text_gen_insn(CALL_INSN_OPCODE,
+ trampoline + call_offset,
+ ftrace_ops_get_func(ops)), CALL_INSN_SIZE);
+ mutex_unlock(&text_mutex);
+
/* ALLOC_TRAMP flags lets us know we created it */
ops->flags |= FTRACE_OPS_FL_ALLOC_TRAMP;
set_vm_flush_reset_perms(trampoline);
- /*
- * Module allocation needs to be completed by making the page
- * executable. The page is still writable, which is a security hazard,
- * but anyhow ftrace breaks W^X completely.
- */
+ set_memory_ro((unsigned long)trampoline, npages);
set_memory_x((unsigned long)trampoline, npages);
return (unsigned long)trampoline;
fail:
@@ -859,62 +434,54 @@ static unsigned long calc_trampoline_call_offset(bool save_regs)
void arch_ftrace_update_trampoline(struct ftrace_ops *ops)
{
ftrace_func_t func;
- unsigned char *new;
unsigned long offset;
unsigned long ip;
unsigned int size;
- int ret, npages;
+ const char *new;
- if (ops->trampoline) {
- /*
- * The ftrace_ops caller may set up its own trampoline.
- * In such a case, this code must not modify it.
- */
- if (!(ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP))
- return;
- npages = PAGE_ALIGN(ops->trampoline_size) >> PAGE_SHIFT;
- set_memory_rw(ops->trampoline, npages);
- } else {
+ if (!ops->trampoline) {
ops->trampoline = create_trampoline(ops, &size);
if (!ops->trampoline)
return;
ops->trampoline_size = size;
- npages = PAGE_ALIGN(size) >> PAGE_SHIFT;
+ return;
}
+ /*
+ * The ftrace_ops caller may set up its own trampoline.
+ * In such a case, this code must not modify it.
+ */
+ if (!(ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP))
+ return;
+
offset = calc_trampoline_call_offset(ops->flags & FTRACE_OPS_FL_SAVE_REGS);
ip = ops->trampoline + offset;
-
func = ftrace_ops_get_func(ops);
- ftrace_update_func_call = (unsigned long)func;
-
+ mutex_lock(&text_mutex);
/* Do a safe modify in case the trampoline is executing */
new = ftrace_call_replace(ip, (unsigned long)func);
- ret = update_ftrace_func(ip, new);
- set_memory_ro(ops->trampoline, npages);
-
- /* The update should never fail */
- WARN_ON(ret);
+ text_poke_bp((void *)ip, new, MCOUNT_INSN_SIZE, NULL);
+ mutex_unlock(&text_mutex);
}
/* Return the address of the function the trampoline calls */
static void *addr_from_call(void *ptr)
{
- union ftrace_code_union calc;
+ union text_poke_insn call;
int ret;
- ret = probe_kernel_read(&calc, ptr, MCOUNT_INSN_SIZE);
+ ret = probe_kernel_read(&call, ptr, CALL_INSN_SIZE);
if (WARN_ON_ONCE(ret < 0))
return NULL;
/* Make sure this is a call */
- if (WARN_ON_ONCE(calc.op != 0xe8)) {
- pr_warn("Expected e8, got %x\n", calc.op);
+ if (WARN_ON_ONCE(call.opcode != CALL_INSN_OPCODE)) {
+ pr_warn("Expected E8, got %x\n", call.opcode);
return NULL;
}
- return ptr + MCOUNT_INSN_SIZE + calc.offset;
+ return ptr + CALL_INSN_SIZE + call.disp;
}
void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent,
@@ -981,19 +548,18 @@ void arch_ftrace_trampoline_free(struct ftrace_ops *ops)
#ifdef CONFIG_DYNAMIC_FTRACE
extern void ftrace_graph_call(void);
-static unsigned char *ftrace_jmp_replace(unsigned long ip, unsigned long addr)
+static const char *ftrace_jmp_replace(unsigned long ip, unsigned long addr)
{
- return ftrace_text_replace(0xe9, ip, addr);
+ return text_gen_insn(JMP32_INSN_OPCODE, (void *)ip, (void *)addr);
}
static int ftrace_mod_jmp(unsigned long ip, void *func)
{
- unsigned char *new;
+ const char *new;
- ftrace_update_func_call = 0UL;
new = ftrace_jmp_replace(ip, (unsigned long)func);
-
- return update_ftrace_func(ip, new);
+ text_poke_bp((void *)ip, new, MCOUNT_INSN_SIZE, NULL);
+ return 0;
}
int ftrace_enable_ftrace_graph_caller(void)
@@ -1019,10 +585,9 @@ int ftrace_disable_ftrace_graph_caller(void)
void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent,
unsigned long frame_pointer)
{
+ unsigned long return_hooker = (unsigned long)&return_to_handler;
unsigned long old;
int faulted;
- unsigned long return_hooker = (unsigned long)
- &return_to_handler;
/*
* When resuming from suspend-to-ram, this function can be indirectly
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index c6f791bc481e..7a50f0b62a70 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -84,7 +84,7 @@ static inline void hpet_writel(unsigned int d, unsigned int a)
static inline void hpet_set_mapping(void)
{
- hpet_virt_address = ioremap_nocache(hpet_address, HPET_MMAP_SIZE);
+ hpet_virt_address = ioremap(hpet_address, HPET_MMAP_SIZE);
}
static inline void hpet_clear_mapping(void)
diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
index c1a8b9e71408..9c4498ea0b3c 100644
--- a/arch/x86/kernel/jump_label.c
+++ b/arch/x86/kernel/jump_label.c
@@ -16,15 +16,7 @@
#include <asm/alternative.h>
#include <asm/text-patching.h>
-union jump_code_union {
- char code[JUMP_LABEL_NOP_SIZE];
- struct {
- char jump;
- int offset;
- } __attribute__((packed));
-};
-
-static void bug_at(unsigned char *ip, int line)
+static void bug_at(const void *ip, int line)
{
/*
* The location is not an op that we were expecting.
@@ -35,42 +27,42 @@ static void bug_at(unsigned char *ip, int line)
BUG();
}
-static void __jump_label_set_jump_code(struct jump_entry *entry,
- enum jump_label_type type,
- union jump_code_union *code,
- int init)
+static const void *
+__jump_label_set_jump_code(struct jump_entry *entry, enum jump_label_type type, int init)
{
const unsigned char default_nop[] = { STATIC_KEY_INIT_NOP };
const unsigned char *ideal_nop = ideal_nops[NOP_ATOMIC5];
- const void *expect;
+ const void *expect, *code;
+ const void *addr, *dest;
int line;
- code->jump = 0xe9;
- code->offset = jump_entry_target(entry) -
- (jump_entry_code(entry) + JUMP_LABEL_NOP_SIZE);
+ addr = (void *)jump_entry_code(entry);
+ dest = (void *)jump_entry_target(entry);
+
+ code = text_gen_insn(JMP32_INSN_OPCODE, addr, dest);
if (init) {
expect = default_nop; line = __LINE__;
} else if (type == JUMP_LABEL_JMP) {
expect = ideal_nop; line = __LINE__;
} else {
- expect = code->code; line = __LINE__;
+ expect = code; line = __LINE__;
}
- if (memcmp((void *)jump_entry_code(entry), expect, JUMP_LABEL_NOP_SIZE))
- bug_at((void *)jump_entry_code(entry), line);
+ if (memcmp(addr, expect, JUMP_LABEL_NOP_SIZE))
+ bug_at(addr, line);
if (type == JUMP_LABEL_NOP)
- memcpy(code, ideal_nop, JUMP_LABEL_NOP_SIZE);
+ code = ideal_nop;
+
+ return code;
}
-static void __ref __jump_label_transform(struct jump_entry *entry,
- enum jump_label_type type,
- int init)
+static void inline __jump_label_transform(struct jump_entry *entry,
+ enum jump_label_type type,
+ int init)
{
- union jump_code_union code;
-
- __jump_label_set_jump_code(entry, type, &code, init);
+ const void *opcode = __jump_label_set_jump_code(entry, type, init);
/*
* As long as only a single processor is running and the code is still
@@ -84,31 +76,33 @@ static void __ref __jump_label_transform(struct jump_entry *entry,
* always nop being the 'currently valid' instruction
*/
if (init || system_state == SYSTEM_BOOTING) {
- text_poke_early((void *)jump_entry_code(entry), &code,
+ text_poke_early((void *)jump_entry_code(entry), opcode,
JUMP_LABEL_NOP_SIZE);
return;
}
- text_poke_bp((void *)jump_entry_code(entry), &code, JUMP_LABEL_NOP_SIZE, NULL);
+ text_poke_bp((void *)jump_entry_code(entry), opcode, JUMP_LABEL_NOP_SIZE, NULL);
}
-void arch_jump_label_transform(struct jump_entry *entry,
- enum jump_label_type type)
+static void __ref jump_label_transform(struct jump_entry *entry,
+ enum jump_label_type type,
+ int init)
{
mutex_lock(&text_mutex);
- __jump_label_transform(entry, type, 0);
+ __jump_label_transform(entry, type, init);
mutex_unlock(&text_mutex);
}
-#define TP_VEC_MAX (PAGE_SIZE / sizeof(struct text_poke_loc))
-static struct text_poke_loc tp_vec[TP_VEC_MAX];
-static int tp_vec_nr;
+void arch_jump_label_transform(struct jump_entry *entry,
+ enum jump_label_type type)
+{
+ jump_label_transform(entry, type, 0);
+}
bool arch_jump_label_transform_queue(struct jump_entry *entry,
enum jump_label_type type)
{
- struct text_poke_loc *tp;
- void *entry_code;
+ const void *opcode;
if (system_state == SYSTEM_BOOTING) {
/*
@@ -118,53 +112,19 @@ bool arch_jump_label_transform_queue(struct jump_entry *entry,
return true;
}
- /*
- * No more space in the vector, tell upper layer to apply
- * the queue before continuing.
- */
- if (tp_vec_nr == TP_VEC_MAX)
- return false;
-
- tp = &tp_vec[tp_vec_nr];
-
- entry_code = (void *)jump_entry_code(entry);
-
- /*
- * The INT3 handler will do a bsearch in the queue, so we need entries
- * to be sorted. We can survive an unsorted list by rejecting the entry,
- * forcing the generic jump_label code to apply the queue. Warning once,
- * to raise the attention to the case of an unsorted entry that is
- * better not happen, because, in the worst case we will perform in the
- * same way as we do without batching - with some more overhead.
- */
- if (tp_vec_nr > 0) {
- int prev = tp_vec_nr - 1;
- struct text_poke_loc *prev_tp = &tp_vec[prev];
-
- if (WARN_ON_ONCE(prev_tp->addr > entry_code))
- return false;
- }
-
- __jump_label_set_jump_code(entry, type,
- (union jump_code_union *)&tp->text, 0);
-
- text_poke_loc_init(tp, entry_code, NULL, JUMP_LABEL_NOP_SIZE, NULL);
-
- tp_vec_nr++;
-
+ mutex_lock(&text_mutex);
+ opcode = __jump_label_set_jump_code(entry, type, 0);
+ text_poke_queue((void *)jump_entry_code(entry),
+ opcode, JUMP_LABEL_NOP_SIZE, NULL);
+ mutex_unlock(&text_mutex);
return true;
}
void arch_jump_label_transform_apply(void)
{
- if (!tp_vec_nr)
- return;
-
mutex_lock(&text_mutex);
- text_poke_bp_batch(tp_vec, tp_vec_nr);
+ text_poke_finish();
mutex_unlock(&text_mutex);
-
- tp_vec_nr = 0;
}
static enum {
@@ -193,5 +153,5 @@ __init_or_module void arch_jump_label_transform_static(struct jump_entry *entry,
jlstate = JL_STATE_NO_UPDATE;
}
if (jlstate == JL_STATE_UPDATE)
- __jump_label_transform(entry, type, 1);
+ jump_label_transform(entry, type, 1);
}
diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c
index d2f4e706a428..f293d872602a 100644
--- a/arch/x86/kernel/kexec-bzimage64.c
+++ b/arch/x86/kernel/kexec-bzimage64.c
@@ -177,7 +177,7 @@ setup_efi_state(struct boot_params *params, unsigned long params_load_addr,
* acpi_rsdp=<addr> on kernel command line to make second kernel boot
* without efi.
*/
- if (efi_enabled(EFI_OLD_MEMMAP))
+ if (efi_have_uv1_memmap())
return 0;
params->secure_boot = boot_params.secure_boot;
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 4f13af7cbcdb..4d7022a740ab 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -40,6 +40,7 @@
#include <linux/frame.h>
#include <linux/kasan.h>
#include <linux/moduleloader.h>
+#include <linux/vmalloc.h>
#include <asm/text-patching.h>
#include <asm/cacheflush.h>
@@ -119,14 +120,14 @@ __synthesize_relative_insn(void *dest, void *from, void *to, u8 op)
/* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
void synthesize_reljump(void *dest, void *from, void *to)
{
- __synthesize_relative_insn(dest, from, to, RELATIVEJUMP_OPCODE);
+ __synthesize_relative_insn(dest, from, to, JMP32_INSN_OPCODE);
}
NOKPROBE_SYMBOL(synthesize_reljump);
/* Insert a call instruction at address 'from', which calls address 'to'.*/
void synthesize_relcall(void *dest, void *from, void *to)
{
- __synthesize_relative_insn(dest, from, to, RELATIVECALL_OPCODE);
+ __synthesize_relative_insn(dest, from, to, CALL_INSN_OPCODE);
}
NOKPROBE_SYMBOL(synthesize_relcall);
@@ -301,7 +302,7 @@ static int can_probe(unsigned long paddr)
* Another debugging subsystem might insert this breakpoint.
* In that case, we can't recover it.
*/
- if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
+ if (insn.opcode.bytes[0] == INT3_INSN_OPCODE)
return 0;
addr += insn.length;
}
@@ -356,7 +357,7 @@ int __copy_instruction(u8 *dest, u8 *src, u8 *real, struct insn *insn)
return 0;
/* Another subsystem puts a breakpoint, failed to recover */
- if (insn->opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
+ if (insn->opcode.bytes[0] == INT3_INSN_OPCODE)
return 0;
/* We should not singlestep on the exception masking instructions */
@@ -400,14 +401,14 @@ static int prepare_boost(kprobe_opcode_t *buf, struct kprobe *p,
int len = insn->length;
if (can_boost(insn, p->addr) &&
- MAX_INSN_SIZE - len >= RELATIVEJUMP_SIZE) {
+ MAX_INSN_SIZE - len >= JMP32_INSN_SIZE) {
/*
* These instructions can be executed directly if it
* jumps back to correct address.
*/
synthesize_reljump(buf + len, p->ainsn.insn + len,
p->addr + insn->length);
- len += RELATIVEJUMP_SIZE;
+ len += JMP32_INSN_SIZE;
p->ainsn.boostable = true;
} else {
p->ainsn.boostable = false;
@@ -501,12 +502,14 @@ int arch_prepare_kprobe(struct kprobe *p)
void arch_arm_kprobe(struct kprobe *p)
{
- text_poke(p->addr, ((unsigned char []){BREAKPOINT_INSTRUCTION}), 1);
+ text_poke(p->addr, ((unsigned char []){INT3_INSN_OPCODE}), 1);
+ text_poke_sync();
}
void arch_disarm_kprobe(struct kprobe *p)
{
text_poke(p->addr, &p->opcode, 1);
+ text_poke_sync();
}
void arch_remove_kprobe(struct kprobe *p)
@@ -609,7 +612,7 @@ static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
regs->flags |= X86_EFLAGS_TF;
regs->flags &= ~X86_EFLAGS_IF;
/* single step inline if the instruction is an int3 */
- if (p->opcode == BREAKPOINT_INSTRUCTION)
+ if (p->opcode == INT3_INSN_OPCODE)
regs->ip = (unsigned long)p->addr;
else
regs->ip = (unsigned long)p->ainsn.insn;
@@ -695,7 +698,7 @@ int kprobe_int3_handler(struct pt_regs *regs)
reset_current_kprobe();
return 1;
}
- } else if (*addr != BREAKPOINT_INSTRUCTION) {
+ } else if (*addr != INT3_INSN_OPCODE) {
/*
* The breakpoint instruction was removed right
* after we hit it. Another cpu has removed
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 8900329c28a7..3f45b5c43a71 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -38,7 +38,7 @@ unsigned long __recover_optprobed_insn(kprobe_opcode_t *buf, unsigned long addr)
long offs;
int i;
- for (i = 0; i < RELATIVEJUMP_SIZE; i++) {
+ for (i = 0; i < JMP32_INSN_SIZE; i++) {
kp = get_kprobe((void *)addr - i);
/* This function only handles jump-optimized kprobe */
if (kp && kprobe_optimized(kp)) {
@@ -62,10 +62,10 @@ found:
if (addr == (unsigned long)kp->addr) {
buf[0] = kp->opcode;
- memcpy(buf + 1, op->optinsn.copied_insn, RELATIVE_ADDR_SIZE);
+ memcpy(buf + 1, op->optinsn.copied_insn, DISP32_SIZE);
} else {
offs = addr - (unsigned long)kp->addr - 1;
- memcpy(buf, op->optinsn.copied_insn + offs, RELATIVE_ADDR_SIZE - offs);
+ memcpy(buf, op->optinsn.copied_insn + offs, DISP32_SIZE - offs);
}
return (unsigned long)buf;
@@ -141,8 +141,6 @@ STACK_FRAME_NON_STANDARD(optprobe_template_func);
#define TMPL_END_IDX \
((long)optprobe_template_end - (long)optprobe_template_entry)
-#define INT3_SIZE sizeof(kprobe_opcode_t)
-
/* Optimized kprobe call back function: called from optinsn */
static void
optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
@@ -162,7 +160,7 @@ optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
regs->cs |= get_kernel_rpl();
regs->gs = 0;
#endif
- regs->ip = (unsigned long)op->kp.addr + INT3_SIZE;
+ regs->ip = (unsigned long)op->kp.addr + INT3_INSN_SIZE;
regs->orig_ax = ~0UL;
__this_cpu_write(current_kprobe, &op->kp);
@@ -179,7 +177,7 @@ static int copy_optimized_instructions(u8 *dest, u8 *src, u8 *real)
struct insn insn;
int len = 0, ret;
- while (len < RELATIVEJUMP_SIZE) {
+ while (len < JMP32_INSN_SIZE) {
ret = __copy_instruction(dest + len, src + len, real + len, &insn);
if (!ret || !can_boost(&insn, src + len))
return -EINVAL;
@@ -271,7 +269,7 @@ static int can_optimize(unsigned long paddr)
return 0;
/* Check there is enough space for a relative jump. */
- if (size - offset < RELATIVEJUMP_SIZE)
+ if (size - offset < JMP32_INSN_SIZE)
return 0;
/* Decode instructions */
@@ -290,15 +288,15 @@ static int can_optimize(unsigned long paddr)
kernel_insn_init(&insn, (void *)recovered_insn, MAX_INSN_SIZE);
insn_get_length(&insn);
/* Another subsystem puts a breakpoint */
- if (insn.opcode.bytes[0] == BREAKPOINT_INSTRUCTION)
+ if (insn.opcode.bytes[0] == INT3_INSN_OPCODE)
return 0;
/* Recover address */
insn.kaddr = (void *)addr;
insn.next_byte = (void *)(addr + insn.length);
/* Check any instructions don't jump into target */
if (insn_is_indirect_jump(&insn) ||
- insn_jump_into_range(&insn, paddr + INT3_SIZE,
- RELATIVE_ADDR_SIZE))
+ insn_jump_into_range(&insn, paddr + INT3_INSN_SIZE,
+ DISP32_SIZE))
return 0;
addr += insn.length;
}
@@ -374,7 +372,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
* Verify if the address gap is in 2GB range, because this uses
* a relative jump.
*/
- rel = (long)slot - (long)op->kp.addr + RELATIVEJUMP_SIZE;
+ rel = (long)slot - (long)op->kp.addr + JMP32_INSN_SIZE;
if (abs(rel) > 0x7fffffff) {
ret = -ERANGE;
goto err;
@@ -401,7 +399,7 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
/* Set returning jmp instruction at the tail of out-of-line buffer */
synthesize_reljump(buf + len, slot + len,
(u8 *)op->kp.addr + op->optinsn.size);
- len += RELATIVEJUMP_SIZE;
+ len += JMP32_INSN_SIZE;
/* We have to use text_poke() for instruction buffer because it is RO */
text_poke(slot, buf, len);
@@ -416,49 +414,50 @@ err:
}
/*
- * Replace breakpoints (int3) with relative jumps.
+ * Replace breakpoints (INT3) with relative jumps (JMP.d32).
* Caller must call with locking kprobe_mutex and text_mutex.
+ *
+ * The caller will have installed a regular kprobe and after that issued
+ * syncrhonize_rcu_tasks(), this ensures that the instruction(s) that live in
+ * the 4 bytes after the INT3 are unused and can now be overwritten.
*/
void arch_optimize_kprobes(struct list_head *oplist)
{
struct optimized_kprobe *op, *tmp;
- u8 insn_buff[RELATIVEJUMP_SIZE];
+ u8 insn_buff[JMP32_INSN_SIZE];
list_for_each_entry_safe(op, tmp, oplist, list) {
s32 rel = (s32)((long)op->optinsn.insn -
- ((long)op->kp.addr + RELATIVEJUMP_SIZE));
+ ((long)op->kp.addr + JMP32_INSN_SIZE));
WARN_ON(kprobe_disabled(&op->kp));
/* Backup instructions which will be replaced by jump address */
- memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE,
- RELATIVE_ADDR_SIZE);
+ memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_INSN_SIZE,
+ DISP32_SIZE);
- insn_buff[0] = RELATIVEJUMP_OPCODE;
+ insn_buff[0] = JMP32_INSN_OPCODE;
*(s32 *)(&insn_buff[1]) = rel;
- text_poke_bp(op->kp.addr, insn_buff, RELATIVEJUMP_SIZE, NULL);
+ text_poke_bp(op->kp.addr, insn_buff, JMP32_INSN_SIZE, NULL);
list_del_init(&op->list);
}
}
-/* Replace a relative jump with a breakpoint (int3). */
+/*
+ * Replace a relative jump (JMP.d32) with a breakpoint (INT3).
+ *
+ * After that, we can restore the 4 bytes after the INT3 to undo what
+ * arch_optimize_kprobes() scribbled. This is safe since those bytes will be
+ * unused once the INT3 lands.
+ */
void arch_unoptimize_kprobe(struct optimized_kprobe *op)
{
- u8 insn_buff[RELATIVEJUMP_SIZE];
- u8 emulate_buff[RELATIVEJUMP_SIZE];
-
- /* Set int3 to first byte for kprobes */
- insn_buff[0] = BREAKPOINT_INSTRUCTION;
- memcpy(insn_buff + 1, op->optinsn.copied_insn, RELATIVE_ADDR_SIZE);
-
- emulate_buff[0] = RELATIVEJUMP_OPCODE;
- *(s32 *)(&emulate_buff[1]) = (s32)((long)op->optinsn.insn -
- ((long)op->kp.addr + RELATIVEJUMP_SIZE));
-
- text_poke_bp(op->kp.addr, insn_buff, RELATIVEJUMP_SIZE,
- emulate_buff);
+ arch_arm_kprobe(&op->kp);
+ text_poke(op->kp.addr + INT3_INSN_SIZE,
+ op->optinsn.copied_insn, DISP32_SIZE);
+ text_poke_sync();
}
/*
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 32ef1ee733b7..81045aabb6f4 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -245,17 +245,13 @@ NOKPROBE_SYMBOL(kvm_read_and_reset_pf_reason);
dotraplinkage void
do_async_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
{
- enum ctx_state prev_state;
-
switch (kvm_read_and_reset_pf_reason()) {
default:
do_page_fault(regs, error_code, address);
break;
case KVM_PV_REASON_PAGE_NOT_PRESENT:
/* page is swapped out by the host. */
- prev_state = exception_enter();
kvm_async_pf_task_wait((u32)address, !user_mode(regs));
- exception_exit(prev_state);
break;
case KVM_PV_REASON_PAGE_READY:
rcu_irq_enter();
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index b2463fcb20a8..c57e1ca70fd1 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -28,6 +28,89 @@
#include <asm/desc.h>
#include <asm/mmu_context.h>
#include <asm/syscalls.h>
+#include <asm/pgtable_areas.h>
+
+/* This is a multiple of PAGE_SIZE. */
+#define LDT_SLOT_STRIDE (LDT_ENTRIES * LDT_ENTRY_SIZE)
+
+static inline void *ldt_slot_va(int slot)
+{
+ return (void *)(LDT_BASE_ADDR + LDT_SLOT_STRIDE * slot);
+}
+
+void load_mm_ldt(struct mm_struct *mm)
+{
+ struct ldt_struct *ldt;
+
+ /* READ_ONCE synchronizes with smp_store_release */
+ ldt = READ_ONCE(mm->context.ldt);
+
+ /*
+ * Any change to mm->context.ldt is followed by an IPI to all
+ * CPUs with the mm active. The LDT will not be freed until
+ * after the IPI is handled by all such CPUs. This means that,
+ * if the ldt_struct changes before we return, the values we see
+ * will be safe, and the new values will be loaded before we run
+ * any user code.
+ *
+ * NB: don't try to convert this to use RCU without extreme care.
+ * We would still need IRQs off, because we don't want to change
+ * the local LDT after an IPI loaded a newer value than the one
+ * that we can see.
+ */
+
+ if (unlikely(ldt)) {
+ if (static_cpu_has(X86_FEATURE_PTI)) {
+ if (WARN_ON_ONCE((unsigned long)ldt->slot > 1)) {
+ /*
+ * Whoops -- either the new LDT isn't mapped
+ * (if slot == -1) or is mapped into a bogus
+ * slot (if slot > 1).
+ */
+ clear_LDT();
+ return;
+ }
+
+ /*
+ * If page table isolation is enabled, ldt->entries
+ * will not be mapped in the userspace pagetables.
+ * Tell the CPU to access the LDT through the alias
+ * at ldt_slot_va(ldt->slot).
+ */
+ set_ldt(ldt_slot_va(ldt->slot), ldt->nr_entries);
+ } else {
+ set_ldt(ldt->entries, ldt->nr_entries);
+ }
+ } else {
+ clear_LDT();
+ }
+}
+
+void switch_ldt(struct mm_struct *prev, struct mm_struct *next)
+{
+ /*
+ * Load the LDT if either the old or new mm had an LDT.
+ *
+ * An mm will never go from having an LDT to not having an LDT. Two
+ * mms never share an LDT, so we don't gain anything by checking to
+ * see whether the LDT changed. There's also no guarantee that
+ * prev->context.ldt actually matches LDTR, but, if LDTR is non-NULL,
+ * then prev->context.ldt will also be non-NULL.
+ *
+ * If we really cared, we could optimize the case where prev == next
+ * and we're exiting lazy mode. Most of the time, if this happens,
+ * we don't actually need to reload LDTR, but modify_ldt() is mostly
+ * used by legacy code and emulators where we don't need this level of
+ * performance.
+ *
+ * This uses | instead of || because it generates better code.
+ */
+ if (unlikely((unsigned long)prev->context.ldt |
+ (unsigned long)next->context.ldt))
+ load_mm_ldt(next);
+
+ DEBUG_LOCKS_WARN_ON(preemptible());
+}
static void refresh_ldt_segments(void)
{
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index e676a9916c49..54c21d6abd5a 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -104,18 +104,22 @@ static int __init nmi_warning_debugfs(void)
}
fs_initcall(nmi_warning_debugfs);
-static void nmi_max_handler(struct irq_work *w)
+static void nmi_check_duration(struct nmiaction *action, u64 duration)
{
- struct nmiaction *a = container_of(w, struct nmiaction, irq_work);
+ u64 whole_msecs = READ_ONCE(action->max_duration);
int remainder_ns, decimal_msecs;
- u64 whole_msecs = READ_ONCE(a->max_duration);
+
+ if (duration < nmi_longest_ns || duration < action->max_duration)
+ return;
+
+ action->max_duration = duration;
remainder_ns = do_div(whole_msecs, (1000 * 1000));
decimal_msecs = remainder_ns / 1000;
printk_ratelimited(KERN_INFO
"INFO: NMI handler (%ps) took too long to run: %lld.%03d msecs\n",
- a->handler, whole_msecs, decimal_msecs);
+ action->handler, whole_msecs, decimal_msecs);
}
static int nmi_handle(unsigned int type, struct pt_regs *regs)
@@ -142,11 +146,7 @@ static int nmi_handle(unsigned int type, struct pt_regs *regs)
delta = sched_clock() - delta;
trace_nmi_handler(a->handler, (int)delta, thishandled);
- if (delta < nmi_longest_ns || delta < a->max_duration)
- continue;
-
- a->max_duration = delta;
- irq_work_queue(&a->irq_work);
+ nmi_check_duration(a, delta);
}
rcu_read_unlock();
@@ -164,8 +164,6 @@ int __register_nmi_handler(unsigned int type, struct nmiaction *action)
if (!action->handler)
return -EINVAL;
- init_irq_work(&action->irq_work, nmi_max_handler);
-
raw_spin_lock_irqsave(&desc->lock, flags);
/*
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 61e93a318983..839b5244e3b7 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -615,12 +615,8 @@ void speculation_ctrl_update_current(void)
void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p)
{
- struct thread_struct *prev, *next;
unsigned long tifp, tifn;
- prev = &prev_p->thread;
- next = &next_p->thread;
-
tifn = READ_ONCE(task_thread_info(next_p)->flags);
tifp = READ_ONCE(task_thread_info(prev_p)->flags);
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 323499f48858..5052ced43373 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -124,7 +124,6 @@ start_thread(struct pt_regs *regs, unsigned long new_ip, unsigned long new_sp)
regs->ip = new_ip;
regs->sp = new_sp;
regs->flags = X86_EFLAGS_IF;
- force_iret();
}
EXPORT_SYMBOL_GPL(start_thread);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 506d66830d4d..ffd497804dbc 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -394,7 +394,6 @@ start_thread_common(struct pt_regs *regs, unsigned long new_ip,
regs->cs = _cs;
regs->ss = _ss;
regs->flags = X86_EFLAGS_IF;
- force_iret();
}
void
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 1daf8f2aa21f..896d74cb5081 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -110,7 +110,7 @@ static void ich_force_enable_hpet(struct pci_dev *dev)
}
/* use bits 31:14, 16 kB aligned */
- rcba_base = ioremap_nocache(rcba, 0x4000);
+ rcba_base = ioremap(rcba, 0x4000);
if (rcba_base == NULL) {
dev_printk(KERN_DEBUG, &dev->dev, "ioremap failed; "
"cannot force enable HPET\n");
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index cedfe2077a69..1e4c20a1efec 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -2,130 +2,54 @@
/*
* Copyright (C) 1995 Linus Torvalds
*
- * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
- *
- * Memory region support
- * David Parsons <orc@pell.chi.il.us>, July-August 1999
- *
- * Added E820 sanitization routine (removes overlapping memory regions);
- * Brian Moyle <bmoyle@mvista.com>, February 2001
- *
- * Moved CPU detection code to cpu/${cpu}.c
- * Patrick Mochel <mochel@osdl.org>, March 2002
- *
- * Provisions for empty E820 memory regions (reported by certain BIOSes).
- * Alex Achenbach <xela@slit.de>, December 2002.
- *
- */
-
-/*
- * This file handles the architecture-dependent parts of initialization
+ * This file contains the setup_arch() code, which handles the architecture-dependent
+ * parts of early kernel initialization.
*/
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/mmzone.h>
-#include <linux/screen_info.h>
-#include <linux/ioport.h>
-#include <linux/acpi.h>
-#include <linux/sfi.h>
-#include <linux/apm_bios.h>
-#include <linux/initrd.h>
-#include <linux/memblock.h>
-#include <linux/seq_file.h>
#include <linux/console.h>
-#include <linux/root_dev.h>
-#include <linux/highmem.h>
-#include <linux/export.h>
+#include <linux/crash_dump.h>
+#include <linux/dmi.h>
#include <linux/efi.h>
-#include <linux/init.h>
-#include <linux/edd.h>
+#include <linux/init_ohci1394_dma.h>
+#include <linux/initrd.h>
#include <linux/iscsi_ibft.h>
-#include <linux/nodemask.h>
-#include <linux/kexec.h>
-#include <linux/dmi.h>
-#include <linux/pfn.h>
+#include <linux/memblock.h>
#include <linux/pci.h>
-#include <asm/pci-direct.h>
-#include <linux/init_ohci1394_dma.h>
-#include <linux/kvm_para.h>
-#include <linux/dma-contiguous.h>
-#include <xen/xen.h>
-#include <uapi/linux/mount.h>
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/delay.h>
-
-#include <linux/kallsyms.h>
-#include <linux/cpufreq.h>
-#include <linux/dma-mapping.h>
-#include <linux/ctype.h>
-#include <linux/uaccess.h>
-
-#include <linux/percpu.h>
-#include <linux/crash_dump.h>
+#include <linux/root_dev.h>
+#include <linux/sfi.h>
#include <linux/tboot.h>
-#include <linux/jiffies.h>
-#include <linux/mem_encrypt.h>
-#include <linux/sizes.h>
-
#include <linux/usb/xhci-dbgp.h>
-#include <video/edid.h>
-#include <asm/mtrr.h>
+#include <uapi/linux/mount.h>
+
+#include <xen/xen.h>
+
#include <asm/apic.h>
-#include <asm/realmode.h>
-#include <asm/e820/api.h>
-#include <asm/mpspec.h>
-#include <asm/setup.h>
-#include <asm/efi.h>
-#include <asm/timer.h>
-#include <asm/i8259.h>
-#include <asm/sections.h>
-#include <asm/io_apic.h>
-#include <asm/ist.h>
-#include <asm/setup_arch.h>
#include <asm/bios_ebda.h>
-#include <asm/cacheflush.h>
-#include <asm/processor.h>
#include <asm/bugs.h>
-#include <asm/kasan.h>
-
-#include <asm/vsyscall.h>
#include <asm/cpu.h>
-#include <asm/desc.h>
-#include <asm/dma.h>
-#include <asm/iommu.h>
+#include <asm/efi.h>
#include <asm/gart.h>
-#include <asm/mmu_context.h>
-#include <asm/proto.h>
-
-#include <asm/paravirt.h>
#include <asm/hypervisor.h>
-#include <asm/olpc_ofw.h>
-
-#include <asm/percpu.h>
-#include <asm/topology.h>
-#include <asm/apicdef.h>
-#include <asm/amd_nb.h>
+#include <asm/io_apic.h>
+#include <asm/kasan.h>
+#include <asm/kaslr.h>
#include <asm/mce.h>
-#include <asm/alternative.h>
+#include <asm/mtrr.h>
+#include <asm/realmode.h>
+#include <asm/olpc_ofw.h>
+#include <asm/pci-direct.h>
#include <asm/prom.h>
-#include <asm/microcode.h>
-#include <asm/kaslr.h>
+#include <asm/proto.h>
#include <asm/unwind.h>
+#include <asm/vsyscall.h>
+#include <linux/vmalloc.h>
/*
- * max_low_pfn_mapped: highest direct mapped pfn under 4GB
- * max_pfn_mapped: highest direct mapped pfn over 4GB
+ * max_low_pfn_mapped: highest directly mapped pfn < 4 GB
+ * max_pfn_mapped: highest directly mapped pfn > 4 GB
*
* The direct mapping only covers E820_TYPE_RAM regions, so the ranges and gaps are
- * represented by pfn_mapped
+ * represented by pfn_mapped[].
*/
unsigned long max_low_pfn_mapped;
unsigned long max_pfn_mapped;
@@ -135,14 +59,23 @@ RESERVE_BRK(dmi_alloc, 65536);
#endif
-static __initdata unsigned long _brk_start = (unsigned long)__brk_base;
-unsigned long _brk_end = (unsigned long)__brk_base;
+/*
+ * Range of the BSS area. The size of the BSS area is determined
+ * at link time, with RESERVE_BRK*() facility reserving additional
+ * chunks.
+ */
+static __initdata
+unsigned long _brk_start = (unsigned long)__brk_base;
+unsigned long _brk_end = (unsigned long)__brk_base;
struct boot_params boot_params;
/*
- * Machine setup..
+ * These are the four main kernel memory regions, we put them into
+ * the resource tree so that kdump tools and other debugging tools
+ * recover it:
*/
+
static struct resource rodata_resource = {
.name = "Kernel rodata",
.start = 0,
@@ -173,16 +106,16 @@ static struct resource bss_resource = {
#ifdef CONFIG_X86_32
-/* cpu data as detected by the assembly code in head_32.S */
+/* CPU data as detected by the assembly code in head_32.S */
struct cpuinfo_x86 new_cpu_data;
-/* common cpu data for all cpus */
+/* Common CPU data for all CPUs */
struct cpuinfo_x86 boot_cpu_data __read_mostly;
EXPORT_SYMBOL(boot_cpu_data);
unsigned int def_to_bigsmp;
-/* for MCA, but anyone else can use it if they want */
+/* For MCA, but anyone else can use it if they want */
unsigned int machine_id;
unsigned int machine_submodel_id;
unsigned int BIOS_revision;
@@ -468,15 +401,15 @@ static void __init memblock_x86_reserve_range_setup_data(void)
/*
* Keep the crash kernel below this limit.
*
- * On 32 bits earlier kernels would limit the kernel to the low 512 MiB
+ * Earlier 32-bits kernels would limit the kernel to the low 512 MB range
* due to mapping restrictions.
*
- * On 64bit, kdump kernel need be restricted to be under 64TB, which is
+ * 64-bit kdump kernels need to be restricted to be under 64 TB, which is
* the upper limit of system RAM in 4-level paging mode. Since the kdump
- * jumping could be from 5-level to 4-level, the jumping will fail if
- * kernel is put above 64TB, and there's no way to detect the paging mode
- * of the kernel which will be loaded for dumping during the 1st kernel
- * bootup.
+ * jump could be from 5-level paging to 4-level paging, the jump will fail if
+ * the kernel is put above 64 TB, and during the 1st kernel bootup there's
+ * no good way to detect the paging mode of the target kernel which will be
+ * loaded for dumping.
*/
#ifdef CONFIG_X86_32
# define CRASH_ADDR_LOW_MAX SZ_512M
@@ -887,7 +820,7 @@ void __init setup_arch(char **cmdline_p)
/*
* Note: Quark X1000 CPUs advertise PGE incorrectly and require
* a cr3 based tlb flush, so the following __flush_tlb_all()
- * will not flush anything because the cpu quirk which clears
+ * will not flush anything because the CPU quirk which clears
* X86_FEATURE_PGE has not been invoked yet. Though due to the
* load_cr3() above the TLB has been flushed already. The
* quirk is invoked before subsequent calls to __flush_tlb_all()
@@ -1295,8 +1228,6 @@ void __init setup_arch(char **cmdline_p)
#if defined(CONFIG_VGA_CONSOLE)
if (!efi_enabled(EFI_BOOT) || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
#endif
#endif
x86_init.oem.banner();
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 8eb7193e158d..8a29573851a3 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -151,8 +151,6 @@ static int restore_sigcontext(struct pt_regs *regs,
err |= fpu__restore_sig(buf, IS_ENABLED(CONFIG_X86_32));
- force_iret();
-
return err;
}
diff --git a/arch/x86/kernel/sysfb_simplefb.c b/arch/x86/kernel/sysfb_simplefb.c
index 01f0e2263b86..298fc1edd9c9 100644
--- a/arch/x86/kernel/sysfb_simplefb.c
+++ b/arch/x86/kernel/sysfb_simplefb.c
@@ -90,11 +90,11 @@ __init int create_simplefb(const struct screen_info *si,
if (si->orig_video_isVGA == VIDEO_TYPE_VLFB)
size <<= 16;
length = mode->height * mode->stride;
- length = PAGE_ALIGN(length);
if (length > size) {
printk(KERN_WARNING "sysfb: VRAM smaller than advertised\n");
return -EINVAL;
}
+ length = PAGE_ALIGN(length);
/* setup IORESOURCE_MEM as framebuffer memory */
memset(&res, 0, sizeof(res));
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index 4c61f0713832..b89f6ac6a0c0 100644
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -354,7 +354,7 @@ static ssize_t tboot_log_read(struct file *file, char __user *user_buf, size_t c
void *kbuf;
int ret = -EFAULT;
- log_base = ioremap_nocache(TBOOT_SERIAL_LOG_ADDR, TBOOT_SERIAL_LOG_SIZE);
+ log_base = ioremap(TBOOT_SERIAL_LOG_ADDR, TBOOT_SERIAL_LOG_SIZE);
if (!log_base)
return ret;
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 05da6b5b167b..9e6f822922a3 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -56,6 +56,8 @@
#include <asm/mpx.h>
#include <asm/vm86.h>
#include <asm/umip.h>
+#include <asm/insn.h>
+#include <asm/insn-eval.h>
#ifdef CONFIG_X86_64
#include <asm/x86_init.h>
@@ -518,11 +520,57 @@ exit_trap:
do_trap(X86_TRAP_BR, SIGSEGV, "bounds", regs, error_code, 0, NULL);
}
-dotraplinkage void
-do_general_protection(struct pt_regs *regs, long error_code)
+enum kernel_gp_hint {
+ GP_NO_HINT,
+ GP_NON_CANONICAL,
+ GP_CANONICAL
+};
+
+/*
+ * When an uncaught #GP occurs, try to determine the memory address accessed by
+ * the instruction and return that address to the caller. Also, try to figure
+ * out whether any part of the access to that address was non-canonical.
+ */
+static enum kernel_gp_hint get_kernel_gp_address(struct pt_regs *regs,
+ unsigned long *addr)
{
- const char *desc = "general protection fault";
+ u8 insn_buf[MAX_INSN_SIZE];
+ struct insn insn;
+
+ if (probe_kernel_read(insn_buf, (void *)regs->ip, MAX_INSN_SIZE))
+ return GP_NO_HINT;
+
+ kernel_insn_init(&insn, insn_buf, MAX_INSN_SIZE);
+ insn_get_modrm(&insn);
+ insn_get_sib(&insn);
+
+ *addr = (unsigned long)insn_get_addr_ref(&insn, regs);
+ if (*addr == -1UL)
+ return GP_NO_HINT;
+
+#ifdef CONFIG_X86_64
+ /*
+ * Check that:
+ * - the operand is not in the kernel half
+ * - the last byte of the operand is not in the user canonical half
+ */
+ if (*addr < ~__VIRTUAL_MASK &&
+ *addr + insn.opnd_bytes - 1 > __VIRTUAL_MASK)
+ return GP_NON_CANONICAL;
+#endif
+
+ return GP_CANONICAL;
+}
+
+#define GPFSTR "general protection fault"
+
+dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code)
+{
+ char desc[sizeof(GPFSTR) + 50 + 2*sizeof(unsigned long) + 1] = GPFSTR;
+ enum kernel_gp_hint hint = GP_NO_HINT;
struct task_struct *tsk;
+ unsigned long gp_addr;
+ int ret;
RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU");
cond_local_irq_enable(regs);
@@ -539,48 +587,61 @@ do_general_protection(struct pt_regs *regs, long error_code)
}
tsk = current;
- if (!user_mode(regs)) {
- if (fixup_exception(regs, X86_TRAP_GP, error_code, 0))
- return;
+ if (user_mode(regs)) {
tsk->thread.error_code = error_code;
tsk->thread.trap_nr = X86_TRAP_GP;
- /*
- * To be potentially processing a kprobe fault and to
- * trust the result from kprobe_running(), we have to
- * be non-preemptible.
- */
- if (!preemptible() && kprobe_running() &&
- kprobe_fault_handler(regs, X86_TRAP_GP))
- return;
+ show_signal(tsk, SIGSEGV, "", desc, regs, error_code);
+ force_sig(SIGSEGV);
- if (notify_die(DIE_GPF, desc, regs, error_code,
- X86_TRAP_GP, SIGSEGV) != NOTIFY_STOP)
- die(desc, regs, error_code);
return;
}
+ if (fixup_exception(regs, X86_TRAP_GP, error_code, 0))
+ return;
+
tsk->thread.error_code = error_code;
tsk->thread.trap_nr = X86_TRAP_GP;
- show_signal(tsk, SIGSEGV, "", desc, regs, error_code);
+ /*
+ * To be potentially processing a kprobe fault and to trust the result
+ * from kprobe_running(), we have to be non-preemptible.
+ */
+ if (!preemptible() &&
+ kprobe_running() &&
+ kprobe_fault_handler(regs, X86_TRAP_GP))
+ return;
+
+ ret = notify_die(DIE_GPF, desc, regs, error_code, X86_TRAP_GP, SIGSEGV);
+ if (ret == NOTIFY_STOP)
+ return;
+
+ if (error_code)
+ snprintf(desc, sizeof(desc), "segment-related " GPFSTR);
+ else
+ hint = get_kernel_gp_address(regs, &gp_addr);
+
+ if (hint != GP_NO_HINT)
+ snprintf(desc, sizeof(desc), GPFSTR ", %s 0x%lx",
+ (hint == GP_NON_CANONICAL) ? "probably for non-canonical address"
+ : "maybe for address",
+ gp_addr);
+
+ /*
+ * KASAN is interested only in the non-canonical case, clear it
+ * otherwise.
+ */
+ if (hint != GP_NON_CANONICAL)
+ gp_addr = 0;
+
+ die_addr(desc, regs, error_code, gp_addr);
- force_sig(SIGSEGV);
}
NOKPROBE_SYMBOL(do_general_protection);
dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
{
-#ifdef CONFIG_DYNAMIC_FTRACE
- /*
- * ftrace must be first, everything else may cause a recursive crash.
- * See note by declaration of modifying_ftrace_code in ftrace.c
- */
- if (unlikely(atomic_read(&modifying_ftrace_code)) &&
- ftrace_int3_handler(regs))
- return;
-#endif
if (poke_int3_handler(regs))
return;
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index b8acf639abd1..32a818764e03 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -233,7 +233,6 @@ static cycles_t check_tsc_warp(unsigned int timeout)
* The measurement runs for 'timeout' msecs:
*/
end = start + (cycles_t) tsc_khz * timeout;
- now = start;
for (i = 0; ; i++) {
/*
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index 332ae6530fa8..e9cc182aa97e 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -187,6 +187,8 @@ static struct orc_entry *orc_find(unsigned long ip)
return orc_ftrace_find(ip);
}
+#ifdef CONFIG_MODULES
+
static void orc_sort_swap(void *_a, void *_b, int size)
{
struct orc_entry *orc_a, *orc_b;
@@ -229,7 +231,6 @@ static int orc_sort_cmp(const void *_a, const void *_b)
return orc_a->sp_reg == ORC_REG_UNDEFINED && !orc_a->end ? -1 : 1;
}
-#ifdef CONFIG_MODULES
void unwind_module_init(struct module *mod, void *_orc_ip, size_t orc_ip_size,
void *_orc, size_t orc_size)
{
@@ -273,9 +274,11 @@ void __init unwind_init(void)
return;
}
- /* Sort the .orc_unwind and .orc_unwind_ip tables: */
- sort(__start_orc_unwind_ip, num_entries, sizeof(int), orc_sort_cmp,
- orc_sort_swap);
+ /*
+ * Note, the orc_unwind and orc_unwind_ip tables were already
+ * sorted at build time via the 'sorttable' tool.
+ * It's ready for binary search straight away, no need to sort it.
+ */
/* Initialize the fast lookup table: */
lookup_num_blocks = orc_lookup_end - orc_lookup;
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index a76c12b38e92..91d55454e702 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -381,7 +381,6 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus)
mark_screen_rdonly(tsk->mm);
memcpy((struct kernel_vm86_regs *)regs, &vm86regs, sizeof(vm86regs));
- force_iret();
return regs->ax;
}
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 3a1a819da137..e3296aa028fe 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -193,12 +193,10 @@ SECTIONS
__vvar_beginning_hack = .;
/* Place all vvars at the offsets in asm/vvar.h. */
-#define EMIT_VVAR(name, offset) \
+#define EMIT_VVAR(name, offset) \
. = __vvar_beginning_hack + offset; \
*(.vvar_ ## name)
-#define __VVAR_KERNEL_LDS
#include <asm/vvar.h>
-#undef __VVAR_KERNEL_LDS
#undef EMIT_VVAR
/*
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index ce89430a7f80..23e25f3034c2 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -20,7 +20,7 @@
#include <asm/irq.h>
#include <asm/io_apic.h>
#include <asm/hpet.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/tsc.h>
#include <asm/iommu.h>
#include <asm/mach_traps.h>
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 840e12583b85..991019d5eee1 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -60,13 +60,11 @@ config KVM
If unsure, say N.
config KVM_INTEL
- tristate "KVM for Intel processors support"
- depends on KVM
- # for perf_guest_get_msrs():
- depends on CPU_SUP_INTEL
+ tristate "KVM for Intel (and compatible) processors support"
+ depends on KVM && IA32_FEAT_CTL
---help---
- Provides support for KVM on Intel processors equipped with the VT
- extensions.
+ Provides support for KVM on processors equipped with Intel's VT
+ extensions, a.k.a. Virtual Machine Extensions (VMX).
To compile this as a module, choose M here: the module
will be called kvm-intel.
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index cfafa320a8cf..cf55629ff0ff 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -402,7 +402,8 @@ static inline void do_cpuid_7_mask(struct kvm_cpuid_entry2 *entry, int index)
entry->edx |= F(SPEC_CTRL);
if (boot_cpu_has(X86_FEATURE_STIBP))
entry->edx |= F(INTEL_STIBP);
- if (boot_cpu_has(X86_FEATURE_SSBD))
+ if (boot_cpu_has(X86_FEATURE_SPEC_CTRL_SSBD) ||
+ boot_cpu_has(X86_FEATURE_AMD_SSBD))
entry->edx |= F(SPEC_CTRL_SSBD);
/*
* We emulate ARCH_CAPABILITIES in software even
@@ -759,7 +760,8 @@ static inline int __do_cpuid_func(struct kvm_cpuid_entry2 *entry, u32 function,
entry->ebx |= F(AMD_IBRS);
if (boot_cpu_has(X86_FEATURE_STIBP))
entry->ebx |= F(AMD_STIBP);
- if (boot_cpu_has(X86_FEATURE_SSBD))
+ if (boot_cpu_has(X86_FEATURE_SPEC_CTRL_SSBD) ||
+ boot_cpu_has(X86_FEATURE_AMD_SSBD))
entry->ebx |= F(AMD_SSBD);
if (!boot_cpu_has_bug(X86_BUG_SPEC_STORE_BYPASS))
entry->ebx |= F(AMD_SSB_NO);
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 6f92b40d798c..a32b847a8089 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -40,7 +40,7 @@
#include <linux/kthread.h>
#include <asm/page.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/cmpxchg.h>
#include <asm/e820/api.h>
#include <asm/io.h>
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 4aea7d304beb..6879966b7648 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -4588,8 +4588,8 @@ static int handle_vmon(struct kvm_vcpu *vcpu)
gpa_t vmptr;
uint32_t revision;
struct vcpu_vmx *vmx = to_vmx(vcpu);
- const u64 VMXON_NEEDED_FEATURES = FEATURE_CONTROL_LOCKED
- | FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX;
+ const u64 VMXON_NEEDED_FEATURES = FEAT_CTL_LOCKED
+ | FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX;
/*
* The Intel VMX Instruction Reference lists a bunch of bits that are
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index e3394c839dea..cdb4bf50ee14 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1839,11 +1839,11 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_IA32_MCG_EXT_CTL:
if (!msr_info->host_initiated &&
!(vmx->msr_ia32_feature_control &
- FEATURE_CONTROL_LMCE))
+ FEAT_CTL_LMCE_ENABLED))
return 1;
msr_info->data = vcpu->arch.mcg_ext_ctl;
break;
- case MSR_IA32_FEATURE_CONTROL:
+ case MSR_IA32_FEAT_CTL:
msr_info->data = vmx->msr_ia32_feature_control;
break;
case MSR_IA32_VMX_BASIC ... MSR_IA32_VMX_VMFUNC:
@@ -2074,15 +2074,15 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case MSR_IA32_MCG_EXT_CTL:
if ((!msr_info->host_initiated &&
!(to_vmx(vcpu)->msr_ia32_feature_control &
- FEATURE_CONTROL_LMCE)) ||
+ FEAT_CTL_LMCE_ENABLED)) ||
(data & ~MCG_EXT_CTL_LMCE_EN))
return 1;
vcpu->arch.mcg_ext_ctl = data;
break;
- case MSR_IA32_FEATURE_CONTROL:
+ case MSR_IA32_FEAT_CTL:
if (!vmx_feature_control_msr_valid(vcpu, data) ||
(to_vmx(vcpu)->msr_ia32_feature_control &
- FEATURE_CONTROL_LOCKED && !msr_info->host_initiated))
+ FEAT_CTL_LOCKED && !msr_info->host_initiated))
return 1;
vmx->msr_ia32_feature_control = data;
if (msr_info->host_initiated && data == 0)
@@ -2204,29 +2204,8 @@ static __init int cpu_has_kvm_support(void)
static __init int vmx_disabled_by_bios(void)
{
- u64 msr;
-
- rdmsrl(MSR_IA32_FEATURE_CONTROL, msr);
- if (msr & FEATURE_CONTROL_LOCKED) {
- /* launched w/ TXT and VMX disabled */
- if (!(msr & FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX)
- && tboot_enabled())
- return 1;
- /* launched w/o TXT and VMX only enabled w/ TXT */
- if (!(msr & FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX)
- && (msr & FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX)
- && !tboot_enabled()) {
- printk(KERN_WARNING "kvm: disable TXT in the BIOS or "
- "activate TXT before enabling KVM\n");
- return 1;
- }
- /* launched w/o TXT and VMX disabled */
- if (!(msr & FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX)
- && !tboot_enabled())
- return 1;
- }
-
- return 0;
+ return !boot_cpu_has(X86_FEATURE_MSR_IA32_FEAT_CTL) ||
+ !boot_cpu_has(X86_FEATURE_VMX);
}
static void kvm_cpu_vmxon(u64 addr)
@@ -2241,7 +2220,6 @@ static int hardware_enable(void)
{
int cpu = raw_smp_processor_id();
u64 phys_addr = __pa(per_cpu(vmxarea, cpu));
- u64 old, test_bits;
if (cr4_read_shadow() & X86_CR4_VMXE)
return -EBUSY;
@@ -2269,17 +2247,6 @@ static int hardware_enable(void)
*/
crash_enable_local_vmclear(cpu);
- rdmsrl(MSR_IA32_FEATURE_CONTROL, old);
-
- test_bits = FEATURE_CONTROL_LOCKED;
- test_bits |= FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX;
- if (tboot_enabled())
- test_bits |= FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX;
-
- if ((old & test_bits) != test_bits) {
- /* enable and lock */
- wrmsrl(MSR_IA32_FEATURE_CONTROL, old | test_bits);
- }
kvm_cpu_vmxon(phys_addr);
if (enable_ept)
ept_sync_global();
@@ -6801,7 +6768,7 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
vmx->nested.posted_intr_nv = -1;
vmx->nested.current_vmptr = -1ull;
- vmx->msr_ia32_feature_control_valid_bits = FEATURE_CONTROL_LOCKED;
+ vmx->msr_ia32_feature_control_valid_bits = FEAT_CTL_LOCKED;
/*
* Enforce invariant: pi_desc.nv is always either POSTED_INTR_VECTOR
@@ -6871,6 +6838,12 @@ static int __init vmx_check_processor_compat(void)
struct vmcs_config vmcs_conf;
struct vmx_capability vmx_cap;
+ if (!this_cpu_has(X86_FEATURE_MSR_IA32_FEAT_CTL) ||
+ !this_cpu_has(X86_FEATURE_VMX)) {
+ pr_err("kvm: VMX is disabled on CPU %d\n", smp_processor_id());
+ return -EIO;
+ }
+
if (setup_vmcs_config(&vmcs_conf, &vmx_cap) < 0)
return -EIO;
if (nested)
@@ -7099,12 +7072,12 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu)
if (nested_vmx_allowed(vcpu))
to_vmx(vcpu)->msr_ia32_feature_control_valid_bits |=
- FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX |
- FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX;
+ FEAT_CTL_VMX_ENABLED_INSIDE_SMX |
+ FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX;
else
to_vmx(vcpu)->msr_ia32_feature_control_valid_bits &=
- ~(FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX |
- FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX);
+ ~(FEAT_CTL_VMX_ENABLED_INSIDE_SMX |
+ FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX);
if (nested_vmx_allowed(vcpu)) {
nested_vmx_cr_fixed1_bits_update(vcpu);
@@ -7523,10 +7496,10 @@ static void vmx_setup_mce(struct kvm_vcpu *vcpu)
{
if (vcpu->arch.mcg_cap & MCG_LMCE_P)
to_vmx(vcpu)->msr_ia32_feature_control_valid_bits |=
- FEATURE_CONTROL_LMCE;
+ FEAT_CTL_LMCE_ENABLED;
else
to_vmx(vcpu)->msr_ia32_feature_control_valid_bits &=
- ~FEATURE_CONTROL_LMCE;
+ ~FEAT_CTL_LMCE_ENABLED;
}
static int vmx_smi_allowed(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index a4f7f737c5d4..7f42cf3dcd70 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -289,7 +289,7 @@ struct vcpu_vmx {
/*
* Only bits masked by msr_ia32_feature_control_valid_bits can be set in
- * msr_ia32_feature_control. FEATURE_CONTROL_LOCKED is always included
+ * msr_ia32_feature_control. FEAT_CTL_LOCKED is always included
* in msr_ia32_feature_control_valid_bits.
*/
u64 msr_ia32_feature_control;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cf917139de6b..740d3ee42455 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1142,7 +1142,7 @@ static const u32 msrs_to_save_all[] = {
MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
#endif
MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA,
- MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS, MSR_TSC_AUX,
+ MSR_IA32_FEAT_CTL, MSR_IA32_BNDCFGS, MSR_TSC_AUX,
MSR_IA32_SPEC_CTRL,
MSR_IA32_RTIT_CTL, MSR_IA32_RTIT_STATUS, MSR_IA32_RTIT_CR3_MATCH,
MSR_IA32_RTIT_OUTPUT_BASE, MSR_IA32_RTIT_OUTPUT_MASK,
diff --git a/arch/x86/lib/insn-eval.c b/arch/x86/lib/insn-eval.c
index 306c3a0902ba..31600d851fd8 100644
--- a/arch/x86/lib/insn-eval.c
+++ b/arch/x86/lib/insn-eval.c
@@ -155,7 +155,7 @@ static bool check_seg_overrides(struct insn *insn, int regoff)
*/
static int resolve_default_seg(struct insn *insn, struct pt_regs *regs, int off)
{
- if (user_64bit_mode(regs))
+ if (any_64bit_mode(regs))
return INAT_SEG_REG_IGNORE;
/*
* Resolve the default segment register as described in Section 3.7.4
@@ -266,7 +266,7 @@ static int resolve_seg_reg(struct insn *insn, struct pt_regs *regs, int regoff)
* which may be invalid at this point.
*/
if (regoff == offsetof(struct pt_regs, ip)) {
- if (user_64bit_mode(regs))
+ if (any_64bit_mode(regs))
return INAT_SEG_REG_IGNORE;
else
return INAT_SEG_REG_CS;
@@ -289,7 +289,7 @@ static int resolve_seg_reg(struct insn *insn, struct pt_regs *regs, int regoff)
* In long mode, segment override prefixes are ignored, except for
* overrides for FS and GS.
*/
- if (user_64bit_mode(regs)) {
+ if (any_64bit_mode(regs)) {
if (idx != INAT_SEG_REG_FS &&
idx != INAT_SEG_REG_GS)
idx = INAT_SEG_REG_IGNORE;
@@ -646,23 +646,27 @@ unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx)
*/
return (unsigned long)(sel << 4);
- if (user_64bit_mode(regs)) {
+ if (any_64bit_mode(regs)) {
/*
* Only FS or GS will have a base address, the rest of
* the segments' bases are forced to 0.
*/
unsigned long base;
- if (seg_reg_idx == INAT_SEG_REG_FS)
+ if (seg_reg_idx == INAT_SEG_REG_FS) {
rdmsrl(MSR_FS_BASE, base);
- else if (seg_reg_idx == INAT_SEG_REG_GS)
+ } else if (seg_reg_idx == INAT_SEG_REG_GS) {
/*
* swapgs was called at the kernel entry point. Thus,
* MSR_KERNEL_GS_BASE will have the user-space GS base.
*/
- rdmsrl(MSR_KERNEL_GS_BASE, base);
- else
+ if (user_mode(regs))
+ rdmsrl(MSR_KERNEL_GS_BASE, base);
+ else
+ rdmsrl(MSR_GS_BASE, base);
+ } else {
base = 0;
+ }
return base;
}
@@ -703,7 +707,7 @@ static unsigned long get_seg_limit(struct pt_regs *regs, int seg_reg_idx)
if (sel < 0)
return 0;
- if (user_64bit_mode(regs) || v8086_mode(regs))
+ if (any_64bit_mode(regs) || v8086_mode(regs))
return -1L;
if (!sel)
@@ -948,7 +952,7 @@ static int get_eff_addr_modrm(struct insn *insn, struct pt_regs *regs,
* following instruction.
*/
if (*regoff == -EDOM) {
- if (user_64bit_mode(regs))
+ if (any_64bit_mode(regs))
tmp = regs->ip + insn->length;
else
tmp = 0;
@@ -1250,7 +1254,7 @@ static void __user *get_addr_ref_32(struct insn *insn, struct pt_regs *regs)
* After computed, the effective address is treated as an unsigned
* quantity.
*/
- if (!user_64bit_mode(regs) && ((unsigned int)eff_addr > seg_limit))
+ if (!any_64bit_mode(regs) && ((unsigned int)eff_addr > seg_limit))
goto out;
/*
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index 337830d7a59c..7ff00ea64e4f 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -29,10 +29,7 @@
SYM_FUNC_START_ALIAS(memmove)
SYM_FUNC_START(__memmove)
- /* Handle more 32 bytes in loop */
mov %rdi, %rax
- cmp $0x20, %rdx
- jb 1f
/* Decide forward/backward copy mode */
cmp %rdi, %rsi
@@ -42,7 +39,9 @@ SYM_FUNC_START(__memmove)
cmp %rdi, %r8
jg 2f
+ /* FSRM implies ERMS => no length checks, do the copy directly */
.Lmemmove_begin_forward:
+ ALTERNATIVE "cmp $0x20, %rdx; jb 1f", "", X86_FEATURE_FSRM
ALTERNATIVE "", "movq %rdx, %rcx; rep movsb; retq", X86_FEATURE_ERMS
/*
@@ -114,6 +113,8 @@ SYM_FUNC_START(__memmove)
*/
.p2align 4
2:
+ cmp $0x20, %rdx
+ jb 1f
cmp $680, %rdx
jb 6f
cmp %dil, %sil
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 3b89c201ac26..345848f270e3 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -12,8 +12,10 @@ CFLAGS_REMOVE_mem_encrypt.o = -pg
CFLAGS_REMOVE_mem_encrypt_identity.o = -pg
endif
-obj-y := init.o init_$(BITS).o fault.o ioremap.o extable.o pageattr.o mmap.o \
- pat.o pgtable.o physaddr.o setup_nx.o tlb.o cpu_entry_area.o maccess.o
+obj-y := init.o init_$(BITS).o fault.o ioremap.o extable.o mmap.o \
+ pgtable.o physaddr.o setup_nx.o tlb.o cpu_entry_area.o maccess.o
+
+obj-y += pat/
# Make sure __phys_addr has no stackprotector
nostackp := $(call cc-option, -fno-stack-protector)
@@ -23,8 +25,6 @@ CFLAGS_mem_encrypt_identity.o := $(nostackp)
CFLAGS_fault.o := -I $(srctree)/$(src)/../include/asm/trace
-obj-$(CONFIG_X86_PAT) += pat_interval.o
-
obj-$(CONFIG_X86_32) += pgtable_32.o iomap_32.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 304d31d8cbbc..fa4ea09593ab 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -29,6 +29,7 @@
#include <asm/efi.h> /* efi_recover_from_page_fault()*/
#include <asm/desc.h> /* store_idt(), ... */
#include <asm/cpu_entry_area.h> /* exception stack */
+#include <asm/pgtable_areas.h> /* VMALLOC_START, ... */
#define CREATE_TRACE_POINTS
#include <asm/trace/exceptions.h>
@@ -1486,27 +1487,6 @@ good_area:
}
NOKPROBE_SYMBOL(do_user_addr_fault);
-/*
- * Explicitly marked noinline such that the function tracer sees this as the
- * page_fault entry point.
- */
-static noinline void
-__do_page_fault(struct pt_regs *regs, unsigned long hw_error_code,
- unsigned long address)
-{
- prefetchw(&current->mm->mmap_sem);
-
- if (unlikely(kmmio_fault(regs, address)))
- return;
-
- /* Was the fault on kernel-controlled part of the address space? */
- if (unlikely(fault_in_kernel_space(address)))
- do_kern_addr_fault(regs, hw_error_code, address);
- else
- do_user_addr_fault(regs, hw_error_code, address);
-}
-NOKPROBE_SYMBOL(__do_page_fault);
-
static __always_inline void
trace_page_fault_entries(struct pt_regs *regs, unsigned long error_code,
unsigned long address)
@@ -1521,13 +1501,19 @@ trace_page_fault_entries(struct pt_regs *regs, unsigned long error_code,
}
dotraplinkage void
-do_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address)
+do_page_fault(struct pt_regs *regs, unsigned long hw_error_code,
+ unsigned long address)
{
- enum ctx_state prev_state;
+ prefetchw(&current->mm->mmap_sem);
+ trace_page_fault_entries(regs, hw_error_code, address);
- prev_state = exception_enter();
- trace_page_fault_entries(regs, error_code, address);
- __do_page_fault(regs, error_code, address);
- exception_exit(prev_state);
+ if (unlikely(kmmio_fault(regs, address)))
+ return;
+
+ /* Was the fault on kernel-controlled part of the address space? */
+ if (unlikely(fault_in_kernel_space(address)))
+ do_kern_addr_fault(regs, hw_error_code, address);
+ else
+ do_user_addr_fault(regs, hw_error_code, address);
}
NOKPROBE_SYMBOL(do_page_fault);
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 930edeb41ec3..23df4885bbed 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -52,6 +52,7 @@
#include <asm/page_types.h>
#include <asm/cpu_entry_area.h>
#include <asm/init.h>
+#include <asm/pgtable_areas.h>
#include "mm_internal.h"
@@ -865,43 +866,13 @@ void arch_remove_memory(int nid, u64 start, u64 size,
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct zone *zone;
- zone = page_zone(pfn_to_page(start_pfn));
- __remove_pages(zone, start_pfn, nr_pages, altmap);
+ __remove_pages(start_pfn, nr_pages, altmap);
}
#endif
int kernel_set_to_readonly __read_mostly;
-void set_kernel_text_rw(void)
-{
- unsigned long start = PFN_ALIGN(_text);
- unsigned long size = PFN_ALIGN(_etext) - start;
-
- if (!kernel_set_to_readonly)
- return;
-
- pr_debug("Set kernel text: %lx - %lx for read write\n",
- start, start+size);
-
- set_pages_rw(virt_to_page(start), size >> PAGE_SHIFT);
-}
-
-void set_kernel_text_ro(void)
-{
- unsigned long start = PFN_ALIGN(_text);
- unsigned long size = PFN_ALIGN(_etext) - start;
-
- if (!kernel_set_to_readonly)
- return;
-
- pr_debug("Set kernel text: %lx - %lx for read only\n",
- start, start+size);
-
- set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT);
-}
-
static void mark_nxdata_nx(void)
{
/*
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index dcb9bc961b39..abbdecb75fad 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1212,10 +1212,8 @@ void __ref arch_remove_memory(int nid, u64 start, u64 size,
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct page *page = pfn_to_page(start_pfn) + vmem_altmap_offset(altmap);
- struct zone *zone = page_zone(page);
- __remove_pages(zone, start_pfn, nr_pages, altmap);
+ __remove_pages(start_pfn, nr_pages, altmap);
kernel_physical_mapping_remove(start, start + size);
}
#endif /* CONFIG_MEMORY_HOTPLUG */
@@ -1260,42 +1258,6 @@ void __init mem_init(void)
int kernel_set_to_readonly;
-void set_kernel_text_rw(void)
-{
- unsigned long start = PFN_ALIGN(_text);
- unsigned long end = PFN_ALIGN(_etext);
-
- if (!kernel_set_to_readonly)
- return;
-
- pr_debug("Set kernel text: %lx - %lx for read write\n",
- start, end);
-
- /*
- * Make the kernel identity mapping for text RW. Kernel text
- * mapping will always be RO. Refer to the comment in
- * static_protections() in pageattr.c
- */
- set_memory_rw(start, (end - start) >> PAGE_SHIFT);
-}
-
-void set_kernel_text_ro(void)
-{
- unsigned long start = PFN_ALIGN(_text);
- unsigned long end = PFN_ALIGN(_etext);
-
- if (!kernel_set_to_readonly)
- return;
-
- pr_debug("Set kernel text: %lx - %lx for read only\n",
- start, end);
-
- /*
- * Set the kernel identity mapping for text RO.
- */
- set_memory_ro(start, (end - start) >> PAGE_SHIFT);
-}
-
void mark_rodata_ro(void)
{
unsigned long start = PFN_ALIGN(_text);
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c
index 6748b4c2baff..f60398aeb644 100644
--- a/arch/x86/mm/iomap_32.c
+++ b/arch/x86/mm/iomap_32.c
@@ -4,7 +4,7 @@
*/
#include <asm/iomap.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <linux/export.h>
#include <linux/highmem.h>
@@ -26,7 +26,7 @@ int iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot)
if (!is_io_mapping_possible(base, size))
return -EINVAL;
- ret = io_reserve_memtype(base, base + size, &pcm);
+ ret = memtype_reserve_io(base, base + size, &pcm);
if (ret)
return ret;
@@ -40,7 +40,7 @@ EXPORT_SYMBOL_GPL(iomap_create_wc);
void iomap_free(resource_size_t base, unsigned long size)
{
- io_free_memtype(base, base + size);
+ memtype_free_io(base, base + size);
}
EXPORT_SYMBOL_GPL(iomap_free);
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index b3a2936377b5..44e4beb4239f 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -24,7 +24,7 @@
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include <asm/pgalloc.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/setup.h>
#include "physaddr.h"
@@ -196,10 +196,10 @@ __ioremap_caller(resource_size_t phys_addr, unsigned long size,
phys_addr &= PHYSICAL_PAGE_MASK;
size = PAGE_ALIGN(last_addr+1) - phys_addr;
- retval = reserve_memtype(phys_addr, (u64)phys_addr + size,
+ retval = memtype_reserve(phys_addr, (u64)phys_addr + size,
pcm, &new_pcm);
if (retval) {
- printk(KERN_ERR "ioremap reserve_memtype failed %d\n", retval);
+ printk(KERN_ERR "ioremap memtype_reserve failed %d\n", retval);
return NULL;
}
@@ -255,7 +255,7 @@ __ioremap_caller(resource_size_t phys_addr, unsigned long size,
area->phys_addr = phys_addr;
vaddr = (unsigned long) area->addr;
- if (kernel_map_sync_memtype(phys_addr, size, pcm))
+ if (memtype_kernel_map_sync(phys_addr, size, pcm))
goto err_free_area;
if (ioremap_page_range(vaddr, vaddr + size, phys_addr, prot))
@@ -275,7 +275,7 @@ __ioremap_caller(resource_size_t phys_addr, unsigned long size,
err_free_area:
free_vm_area(area);
err_free_memtype:
- free_memtype(phys_addr, phys_addr + size);
+ memtype_free(phys_addr, phys_addr + size);
return NULL;
}
@@ -451,7 +451,7 @@ void iounmap(volatile void __iomem *addr)
return;
}
- free_memtype(p->phys_addr, p->phys_addr + get_vm_area_size(p));
+ memtype_free(p->phys_addr, p->phys_addr + get_vm_area_size(p));
/* Finally remove it */
o = remove_vm_area((void __force *)addr);
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index cf5bc37c90ac..763e71abc0fe 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -288,23 +288,6 @@ static void __init kasan_shallow_populate_pgds(void *start, void *end)
} while (pgd++, addr = next, addr != (unsigned long)end);
}
-#ifdef CONFIG_KASAN_INLINE
-static int kasan_die_handler(struct notifier_block *self,
- unsigned long val,
- void *data)
-{
- if (val == DIE_GPF) {
- pr_emerg("CONFIG_KASAN_INLINE enabled\n");
- pr_emerg("GPF could be caused by NULL-ptr deref or user memory access\n");
- }
- return NOTIFY_OK;
-}
-
-static struct notifier_block kasan_die_notifier = {
- .notifier_call = kasan_die_handler,
-};
-#endif
-
void __init kasan_early_init(void)
{
int i;
@@ -341,10 +324,6 @@ void __init kasan_init(void)
int i;
void *shadow_cpu_entry_begin, *shadow_cpu_entry_end;
-#ifdef CONFIG_KASAN_INLINE
- register_die_notifier(&kasan_die_notifier);
-#endif
-
memcpy(early_top_pgt, init_top_pgt, sizeof(early_top_pgt));
/*
diff --git a/arch/x86/mm/pat/Makefile b/arch/x86/mm/pat/Makefile
new file mode 100644
index 000000000000..ea464c995161
--- /dev/null
+++ b/arch/x86/mm/pat/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-y := set_memory.o memtype.o
+
+obj-$(CONFIG_X86_PAT) += memtype_interval.o
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pat/cpa-test.c
index facce271e8b9..facce271e8b9 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pat/cpa-test.c
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat/memtype.c
index 2d758e19ef22..394be8611748 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat/memtype.c
@@ -1,11 +1,34 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
- * Handle caching attributes in page tables (PAT)
+ * Page Attribute Table (PAT) support: handle memory caching attributes in page tables.
*
* Authors: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
* Suresh B Siddha <suresh.b.siddha@intel.com>
*
* Loosely based on earlier PAT patchset from Eric Biederman and Andi Kleen.
+ *
+ * Basic principles:
+ *
+ * PAT is a CPU feature supported by all modern x86 CPUs, to allow the firmware and
+ * the kernel to set one of a handful of 'caching type' attributes for physical
+ * memory ranges: uncached, write-combining, write-through, write-protected,
+ * and the most commonly used and default attribute: write-back caching.
+ *
+ * PAT support supercedes and augments MTRR support in a compatible fashion: MTRR is
+ * a hardware interface to enumerate a limited number of physical memory ranges
+ * and set their caching attributes explicitly, programmed into the CPU via MSRs.
+ * Even modern CPUs have MTRRs enabled - but these are typically not touched
+ * by the kernel or by user-space (such as the X server), we rely on PAT for any
+ * additional cache attribute logic.
+ *
+ * PAT doesn't work via explicit memory ranges, but uses page table entries to add
+ * cache attribute information to the mapped memory range: there's 3 bits used,
+ * (_PAGE_PWT, _PAGE_PCD, _PAGE_PAT), with the 8 possible values mapped by the
+ * CPU to actual cache attributes via an MSR loaded into the CPU (MSR_IA32_CR_PAT).
+ *
+ * ( There's a metric ton of finer details, such as compatibility with CPU quirks
+ * that only support 4 types of PAT entries, and interaction with MTRRs, see
+ * below for details. )
*/
#include <linux/seq_file.h>
@@ -29,44 +52,48 @@
#include <asm/mtrr.h>
#include <asm/page.h>
#include <asm/msr.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/io.h>
-#include "pat_internal.h"
-#include "mm_internal.h"
+#include "memtype.h"
+#include "../mm_internal.h"
#undef pr_fmt
#define pr_fmt(fmt) "" fmt
-static bool __read_mostly boot_cpu_done;
+static bool __read_mostly pat_bp_initialized;
static bool __read_mostly pat_disabled = !IS_ENABLED(CONFIG_X86_PAT);
-static bool __read_mostly pat_initialized;
-static bool __read_mostly init_cm_done;
+static bool __read_mostly pat_bp_enabled;
+static bool __read_mostly pat_cm_initialized;
-void pat_disable(const char *reason)
+/*
+ * PAT support is enabled by default, but can be disabled for
+ * various user-requested or hardware-forced reasons:
+ */
+void pat_disable(const char *msg_reason)
{
if (pat_disabled)
return;
- if (boot_cpu_done) {
+ if (pat_bp_initialized) {
WARN_ONCE(1, "x86/PAT: PAT cannot be disabled after initialization\n");
return;
}
pat_disabled = true;
- pr_info("x86/PAT: %s\n", reason);
+ pr_info("x86/PAT: %s\n", msg_reason);
}
static int __init nopat(char *str)
{
- pat_disable("PAT support disabled.");
+ pat_disable("PAT support disabled via boot option.");
return 0;
}
early_param("nopat", nopat);
bool pat_enabled(void)
{
- return pat_initialized;
+ return pat_bp_enabled;
}
EXPORT_SYMBOL_GPL(pat_enabled);
@@ -197,6 +224,8 @@ static void __init_cache_modes(u64 pat)
char pat_msg[33];
int i;
+ WARN_ON_ONCE(pat_cm_initialized);
+
pat_msg[32] = 0;
for (i = 7; i >= 0; i--) {
cache = pat_get_cache_mode((pat >> (i * 8)) & 7,
@@ -205,28 +234,28 @@ static void __init_cache_modes(u64 pat)
}
pr_info("x86/PAT: Configuration [0-7]: %s\n", pat_msg);
- init_cm_done = true;
+ pat_cm_initialized = true;
}
#define PAT(x, y) ((u64)PAT_ ## y << ((x)*8))
-static void pat_bsp_init(u64 pat)
+static void pat_bp_init(u64 pat)
{
u64 tmp_pat;
if (!boot_cpu_has(X86_FEATURE_PAT)) {
- pat_disable("PAT not supported by CPU.");
+ pat_disable("PAT not supported by the CPU.");
return;
}
rdmsrl(MSR_IA32_CR_PAT, tmp_pat);
if (!tmp_pat) {
- pat_disable("PAT MSR is 0, disabled.");
+ pat_disable("PAT support disabled by the firmware.");
return;
}
wrmsrl(MSR_IA32_CR_PAT, pat);
- pat_initialized = true;
+ pat_bp_enabled = true;
__init_cache_modes(pat);
}
@@ -248,7 +277,7 @@ void init_cache_modes(void)
{
u64 pat = 0;
- if (init_cm_done)
+ if (pat_cm_initialized)
return;
if (boot_cpu_has(X86_FEATURE_PAT)) {
@@ -291,7 +320,7 @@ void init_cache_modes(void)
}
/**
- * pat_init - Initialize PAT MSR and PAT table
+ * pat_init - Initialize the PAT MSR and PAT table on the current CPU
*
* This function initializes PAT MSR and PAT table with an OS-defined value
* to enable additional cache attributes, WC, WT and WP.
@@ -305,6 +334,10 @@ void pat_init(void)
u64 pat;
struct cpuinfo_x86 *c = &boot_cpu_data;
+#ifndef CONFIG_X86_PAT
+ pr_info_once("x86/PAT: PAT support disabled because CONFIG_X86_PAT is disabled in the kernel.\n");
+#endif
+
if (pat_disabled)
return;
@@ -364,9 +397,9 @@ void pat_init(void)
PAT(4, WB) | PAT(5, WP) | PAT(6, UC_MINUS) | PAT(7, WT);
}
- if (!boot_cpu_done) {
- pat_bsp_init(pat);
- boot_cpu_done = true;
+ if (!pat_bp_initialized) {
+ pat_bp_init(pat);
+ pat_bp_initialized = true;
} else {
pat_ap_init(pat);
}
@@ -542,10 +575,10 @@ static u64 sanitize_phys(u64 address)
* available type in new_type in case of no error. In case of any error
* it will return a negative return value.
*/
-int reserve_memtype(u64 start, u64 end, enum page_cache_mode req_type,
+int memtype_reserve(u64 start, u64 end, enum page_cache_mode req_type,
enum page_cache_mode *new_type)
{
- struct memtype *new;
+ struct memtype *entry_new;
enum page_cache_mode actual_type;
int is_range_ram;
int err = 0;
@@ -593,22 +626,22 @@ int reserve_memtype(u64 start, u64 end, enum page_cache_mode req_type,
return -EINVAL;
}
- new = kzalloc(sizeof(struct memtype), GFP_KERNEL);
- if (!new)
+ entry_new = kzalloc(sizeof(struct memtype), GFP_KERNEL);
+ if (!entry_new)
return -ENOMEM;
- new->start = start;
- new->end = end;
- new->type = actual_type;
+ entry_new->start = start;
+ entry_new->end = end;
+ entry_new->type = actual_type;
spin_lock(&memtype_lock);
- err = memtype_check_insert(new, new_type);
+ err = memtype_check_insert(entry_new, new_type);
if (err) {
- pr_info("x86/PAT: reserve_memtype failed [mem %#010Lx-%#010Lx], track %s, req %s\n",
+ pr_info("x86/PAT: memtype_reserve failed [mem %#010Lx-%#010Lx], track %s, req %s\n",
start, end - 1,
- cattr_name(new->type), cattr_name(req_type));
- kfree(new);
+ cattr_name(entry_new->type), cattr_name(req_type));
+ kfree(entry_new);
spin_unlock(&memtype_lock);
return err;
@@ -616,18 +649,17 @@ int reserve_memtype(u64 start, u64 end, enum page_cache_mode req_type,
spin_unlock(&memtype_lock);
- dprintk("reserve_memtype added [mem %#010Lx-%#010Lx], track %s, req %s, ret %s\n",
- start, end - 1, cattr_name(new->type), cattr_name(req_type),
+ dprintk("memtype_reserve added [mem %#010Lx-%#010Lx], track %s, req %s, ret %s\n",
+ start, end - 1, cattr_name(entry_new->type), cattr_name(req_type),
new_type ? cattr_name(*new_type) : "-");
return err;
}
-int free_memtype(u64 start, u64 end)
+int memtype_free(u64 start, u64 end)
{
- int err = -EINVAL;
int is_range_ram;
- struct memtype *entry;
+ struct memtype *entry_old;
if (!pat_enabled())
return 0;
@@ -640,28 +672,24 @@ int free_memtype(u64 start, u64 end)
return 0;
is_range_ram = pat_pagerange_is_ram(start, end);
- if (is_range_ram == 1) {
-
- err = free_ram_pages_type(start, end);
-
- return err;
- } else if (is_range_ram < 0) {
+ if (is_range_ram == 1)
+ return free_ram_pages_type(start, end);
+ if (is_range_ram < 0)
return -EINVAL;
- }
spin_lock(&memtype_lock);
- entry = memtype_erase(start, end);
+ entry_old = memtype_erase(start, end);
spin_unlock(&memtype_lock);
- if (IS_ERR(entry)) {
+ if (IS_ERR(entry_old)) {
pr_info("x86/PAT: %s:%d freeing invalid memtype [mem %#010Lx-%#010Lx]\n",
current->comm, current->pid, start, end - 1);
return -EINVAL;
}
- kfree(entry);
+ kfree(entry_old);
- dprintk("free_memtype request [mem %#010Lx-%#010Lx]\n", start, end - 1);
+ dprintk("memtype_free request [mem %#010Lx-%#010Lx]\n", start, end - 1);
return 0;
}
@@ -700,6 +728,7 @@ static enum page_cache_mode lookup_memtype(u64 paddr)
rettype = _PAGE_CACHE_MODE_UC_MINUS;
spin_unlock(&memtype_lock);
+
return rettype;
}
@@ -723,7 +752,7 @@ bool pat_pfn_immune_to_uc_mtrr(unsigned long pfn)
EXPORT_SYMBOL_GPL(pat_pfn_immune_to_uc_mtrr);
/**
- * io_reserve_memtype - Request a memory type mapping for a region of memory
+ * memtype_reserve_io - Request a memory type mapping for a region of memory
* @start: start (physical address) of the region
* @end: end (physical address) of the region
* @type: A pointer to memtype, with requested type. On success, requested
@@ -732,7 +761,7 @@ EXPORT_SYMBOL_GPL(pat_pfn_immune_to_uc_mtrr);
* On success, returns 0
* On failure, returns non-zero
*/
-int io_reserve_memtype(resource_size_t start, resource_size_t end,
+int memtype_reserve_io(resource_size_t start, resource_size_t end,
enum page_cache_mode *type)
{
resource_size_t size = end - start;
@@ -742,47 +771,47 @@ int io_reserve_memtype(resource_size_t start, resource_size_t end,
WARN_ON_ONCE(iomem_map_sanity_check(start, size));
- ret = reserve_memtype(start, end, req_type, &new_type);
+ ret = memtype_reserve(start, end, req_type, &new_type);
if (ret)
goto out_err;
if (!is_new_memtype_allowed(start, size, req_type, new_type))
goto out_free;
- if (kernel_map_sync_memtype(start, size, new_type) < 0)
+ if (memtype_kernel_map_sync(start, size, new_type) < 0)
goto out_free;
*type = new_type;
return 0;
out_free:
- free_memtype(start, end);
+ memtype_free(start, end);
ret = -EBUSY;
out_err:
return ret;
}
/**
- * io_free_memtype - Release a memory type mapping for a region of memory
+ * memtype_free_io - Release a memory type mapping for a region of memory
* @start: start (physical address) of the region
* @end: end (physical address) of the region
*/
-void io_free_memtype(resource_size_t start, resource_size_t end)
+void memtype_free_io(resource_size_t start, resource_size_t end)
{
- free_memtype(start, end);
+ memtype_free(start, end);
}
int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size)
{
enum page_cache_mode type = _PAGE_CACHE_MODE_WC;
- return io_reserve_memtype(start, start + size, &type);
+ return memtype_reserve_io(start, start + size, &type);
}
EXPORT_SYMBOL(arch_io_reserve_memtype_wc);
void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size)
{
- io_free_memtype(start, start + size);
+ memtype_free_io(start, start + size);
}
EXPORT_SYMBOL(arch_io_free_memtype_wc);
@@ -839,10 +868,10 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
}
/*
- * Change the memory type for the physial address range in kernel identity
+ * Change the memory type for the physical address range in kernel identity
* mapping space if that range is a part of identity map.
*/
-int kernel_map_sync_memtype(u64 base, unsigned long size,
+int memtype_kernel_map_sync(u64 base, unsigned long size,
enum page_cache_mode pcm)
{
unsigned long id_sz;
@@ -851,15 +880,14 @@ int kernel_map_sync_memtype(u64 base, unsigned long size,
return 0;
/*
- * some areas in the middle of the kernel identity range
- * are not mapped, like the PCI space.
+ * Some areas in the middle of the kernel identity range
+ * are not mapped, for example the PCI space.
*/
if (!page_is_ram(base >> PAGE_SHIFT))
return 0;
id_sz = (__pa(high_memory-1) <= base + size) ?
- __pa(high_memory) - base :
- size;
+ __pa(high_memory) - base : size;
if (ioremap_change_attr((unsigned long)__va(base), id_sz, pcm) < 0) {
pr_info("x86/PAT: %s:%d ioremap_change_attr failed %s for [mem %#010Lx-%#010Lx]\n",
@@ -873,7 +901,7 @@ int kernel_map_sync_memtype(u64 base, unsigned long size,
/*
* Internal interface to reserve a range of physical memory with prot.
- * Reserved non RAM regions only and after successful reserve_memtype,
+ * Reserved non RAM regions only and after successful memtype_reserve,
* this func also keeps identity mapping (if any) in sync with this new prot.
*/
static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
@@ -910,14 +938,14 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
return 0;
}
- ret = reserve_memtype(paddr, paddr + size, want_pcm, &pcm);
+ ret = memtype_reserve(paddr, paddr + size, want_pcm, &pcm);
if (ret)
return ret;
if (pcm != want_pcm) {
if (strict_prot ||
!is_new_memtype_allowed(paddr, size, want_pcm, pcm)) {
- free_memtype(paddr, paddr + size);
+ memtype_free(paddr, paddr + size);
pr_err("x86/PAT: %s:%d map pfn expected mapping type %s for [mem %#010Lx-%#010Lx], got %s\n",
current->comm, current->pid,
cattr_name(want_pcm),
@@ -935,8 +963,8 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
cachemode2protval(pcm));
}
- if (kernel_map_sync_memtype(paddr, size, pcm) < 0) {
- free_memtype(paddr, paddr + size);
+ if (memtype_kernel_map_sync(paddr, size, pcm) < 0) {
+ memtype_free(paddr, paddr + size);
return -EINVAL;
}
return 0;
@@ -952,7 +980,7 @@ static void free_pfn_range(u64 paddr, unsigned long size)
is_ram = pat_pagerange_is_ram(paddr, paddr + size);
if (is_ram == 0)
- free_memtype(paddr, paddr + size);
+ memtype_free(paddr, paddr + size);
}
/*
@@ -1099,25 +1127,30 @@ EXPORT_SYMBOL_GPL(pgprot_writethrough);
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_X86_PAT)
+/*
+ * We are allocating a temporary printout-entry to be passed
+ * between seq_start()/next() and seq_show():
+ */
static struct memtype *memtype_get_idx(loff_t pos)
{
- struct memtype *print_entry;
+ struct memtype *entry_print;
int ret;
- print_entry = kzalloc(sizeof(struct memtype), GFP_KERNEL);
- if (!print_entry)
+ entry_print = kzalloc(sizeof(struct memtype), GFP_KERNEL);
+ if (!entry_print)
return NULL;
spin_lock(&memtype_lock);
- ret = memtype_copy_nth_element(print_entry, pos);
+ ret = memtype_copy_nth_element(entry_print, pos);
spin_unlock(&memtype_lock);
- if (!ret) {
- return print_entry;
- } else {
- kfree(print_entry);
+ /* Free it on error: */
+ if (ret) {
+ kfree(entry_print);
return NULL;
}
+
+ return entry_print;
}
static void *memtype_seq_start(struct seq_file *seq, loff_t *pos)
@@ -1142,11 +1175,14 @@ static void memtype_seq_stop(struct seq_file *seq, void *v)
static int memtype_seq_show(struct seq_file *seq, void *v)
{
- struct memtype *print_entry = (struct memtype *)v;
+ struct memtype *entry_print = (struct memtype *)v;
+
+ seq_printf(seq, "PAT: [mem 0x%016Lx-0x%016Lx] %s\n",
+ entry_print->start,
+ entry_print->end,
+ cattr_name(entry_print->type));
- seq_printf(seq, "%s @ 0x%Lx-0x%Lx\n", cattr_name(print_entry->type),
- print_entry->start, print_entry->end);
- kfree(print_entry);
+ kfree(entry_print);
return 0;
}
@@ -1178,7 +1214,6 @@ static int __init pat_memtype_list_init(void)
}
return 0;
}
-
late_initcall(pat_memtype_list_init);
#endif /* CONFIG_DEBUG_FS && CONFIG_X86_PAT */
diff --git a/arch/x86/mm/pat_internal.h b/arch/x86/mm/pat/memtype.h
index 79a06684349e..cacecdbceb55 100644
--- a/arch/x86/mm/pat_internal.h
+++ b/arch/x86/mm/pat/memtype.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __PAT_INTERNAL_H_
-#define __PAT_INTERNAL_H_
+#ifndef __MEMTYPE_H_
+#define __MEMTYPE_H_
extern int pat_debug_enable;
@@ -29,13 +29,13 @@ static inline char *cattr_name(enum page_cache_mode pcm)
}
#ifdef CONFIG_X86_PAT
-extern int memtype_check_insert(struct memtype *new,
+extern int memtype_check_insert(struct memtype *entry_new,
enum page_cache_mode *new_type);
extern struct memtype *memtype_erase(u64 start, u64 end);
extern struct memtype *memtype_lookup(u64 addr);
-extern int memtype_copy_nth_element(struct memtype *out, loff_t pos);
+extern int memtype_copy_nth_element(struct memtype *entry_out, loff_t pos);
#else
-static inline int memtype_check_insert(struct memtype *new,
+static inline int memtype_check_insert(struct memtype *entry_new,
enum page_cache_mode *new_type)
{ return 0; }
static inline struct memtype *memtype_erase(u64 start, u64 end)
@@ -46,4 +46,4 @@ static inline int memtype_copy_nth_element(struct memtype *out, loff_t pos)
{ return 0; }
#endif
-#endif /* __PAT_INTERNAL_H_ */
+#endif /* __MEMTYPE_H_ */
diff --git a/arch/x86/mm/pat/memtype_interval.c b/arch/x86/mm/pat/memtype_interval.c
new file mode 100644
index 000000000000..a07e4882bf36
--- /dev/null
+++ b/arch/x86/mm/pat/memtype_interval.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Handle caching attributes in page tables (PAT)
+ *
+ * Authors: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+ * Suresh B Siddha <suresh.b.siddha@intel.com>
+ *
+ * Interval tree used to store the PAT memory type reservations.
+ */
+
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
+#include <linux/kernel.h>
+#include <linux/interval_tree_generic.h>
+#include <linux/sched.h>
+#include <linux/gfp.h>
+
+#include <asm/pgtable.h>
+#include <asm/memtype.h>
+
+#include "memtype.h"
+
+/*
+ * The memtype tree keeps track of memory type for specific
+ * physical memory areas. Without proper tracking, conflicting memory
+ * types in different mappings can cause CPU cache corruption.
+ *
+ * The tree is an interval tree (augmented rbtree) which tree is ordered
+ * by the starting address. The tree can contain multiple entries for
+ * different regions which overlap. All the aliases have the same
+ * cache attributes of course, as enforced by the PAT logic.
+ *
+ * memtype_lock protects the rbtree.
+ */
+
+static inline u64 interval_start(struct memtype *entry)
+{
+ return entry->start;
+}
+
+static inline u64 interval_end(struct memtype *entry)
+{
+ return entry->end - 1;
+}
+
+INTERVAL_TREE_DEFINE(struct memtype, rb, u64, subtree_max_end,
+ interval_start, interval_end,
+ static, interval)
+
+static struct rb_root_cached memtype_rbroot = RB_ROOT_CACHED;
+
+enum {
+ MEMTYPE_EXACT_MATCH = 0,
+ MEMTYPE_END_MATCH = 1
+};
+
+static struct memtype *memtype_match(u64 start, u64 end, int match_type)
+{
+ struct memtype *entry_match;
+
+ entry_match = interval_iter_first(&memtype_rbroot, start, end-1);
+
+ while (entry_match != NULL && entry_match->start < end) {
+ if ((match_type == MEMTYPE_EXACT_MATCH) &&
+ (entry_match->start == start) && (entry_match->end == end))
+ return entry_match;
+
+ if ((match_type == MEMTYPE_END_MATCH) &&
+ (entry_match->start < start) && (entry_match->end == end))
+ return entry_match;
+
+ entry_match = interval_iter_next(entry_match, start, end-1);
+ }
+
+ return NULL; /* Returns NULL if there is no match */
+}
+
+static int memtype_check_conflict(u64 start, u64 end,
+ enum page_cache_mode reqtype,
+ enum page_cache_mode *newtype)
+{
+ struct memtype *entry_match;
+ enum page_cache_mode found_type = reqtype;
+
+ entry_match = interval_iter_first(&memtype_rbroot, start, end-1);
+ if (entry_match == NULL)
+ goto success;
+
+ if (entry_match->type != found_type && newtype == NULL)
+ goto failure;
+
+ dprintk("Overlap at 0x%Lx-0x%Lx\n", entry_match->start, entry_match->end);
+ found_type = entry_match->type;
+
+ entry_match = interval_iter_next(entry_match, start, end-1);
+ while (entry_match) {
+ if (entry_match->type != found_type)
+ goto failure;
+
+ entry_match = interval_iter_next(entry_match, start, end-1);
+ }
+success:
+ if (newtype)
+ *newtype = found_type;
+
+ return 0;
+
+failure:
+ pr_info("x86/PAT: %s:%d conflicting memory types %Lx-%Lx %s<->%s\n",
+ current->comm, current->pid, start, end,
+ cattr_name(found_type), cattr_name(entry_match->type));
+
+ return -EBUSY;
+}
+
+int memtype_check_insert(struct memtype *entry_new, enum page_cache_mode *ret_type)
+{
+ int err = 0;
+
+ err = memtype_check_conflict(entry_new->start, entry_new->end, entry_new->type, ret_type);
+ if (err)
+ return err;
+
+ if (ret_type)
+ entry_new->type = *ret_type;
+
+ interval_insert(entry_new, &memtype_rbroot);
+ return 0;
+}
+
+struct memtype *memtype_erase(u64 start, u64 end)
+{
+ struct memtype *entry_old;
+
+ /*
+ * Since the memtype_rbroot tree allows overlapping ranges,
+ * memtype_erase() checks with EXACT_MATCH first, i.e. free
+ * a whole node for the munmap case. If no such entry is found,
+ * it then checks with END_MATCH, i.e. shrink the size of a node
+ * from the end for the mremap case.
+ */
+ entry_old = memtype_match(start, end, MEMTYPE_EXACT_MATCH);
+ if (!entry_old) {
+ entry_old = memtype_match(start, end, MEMTYPE_END_MATCH);
+ if (!entry_old)
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (entry_old->start == start) {
+ /* munmap: erase this node */
+ interval_remove(entry_old, &memtype_rbroot);
+ } else {
+ /* mremap: update the end value of this node */
+ interval_remove(entry_old, &memtype_rbroot);
+ entry_old->end = start;
+ interval_insert(entry_old, &memtype_rbroot);
+
+ return NULL;
+ }
+
+ return entry_old;
+}
+
+struct memtype *memtype_lookup(u64 addr)
+{
+ return interval_iter_first(&memtype_rbroot, addr, addr + PAGE_SIZE-1);
+}
+
+/*
+ * Debugging helper, copy the Nth entry of the tree into a
+ * a copy for printout. This allows us to print out the tree
+ * via debugfs, without holding the memtype_lock too long:
+ */
+#ifdef CONFIG_DEBUG_FS
+int memtype_copy_nth_element(struct memtype *entry_out, loff_t pos)
+{
+ struct memtype *entry_match;
+ int i = 1;
+
+ entry_match = interval_iter_first(&memtype_rbroot, 0, ULONG_MAX);
+
+ while (entry_match && pos != i) {
+ entry_match = interval_iter_next(entry_match, 0, ULONG_MAX);
+ i++;
+ }
+
+ if (entry_match) { /* pos == i */
+ *entry_out = *entry_match;
+ return 0;
+ } else {
+ return 1;
+ }
+}
+#endif
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pat/set_memory.c
index 1b99ad05b117..62a8ebe72a52 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pat/set_memory.c
@@ -24,10 +24,10 @@
#include <linux/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/proto.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/set_memory.h>
-#include "mm_internal.h"
+#include "../mm_internal.h"
/*
* The current flushing context - we pass it instead of 5 arguments:
@@ -331,7 +331,7 @@ static void cpa_flush_all(unsigned long cache)
on_each_cpu(__cpa_flush_all, (void *) cache, 1);
}
-void __cpa_flush_tlb(void *data)
+static void __cpa_flush_tlb(void *data)
{
struct cpa_data *cpa = data;
unsigned int i;
@@ -1801,7 +1801,7 @@ int set_memory_uc(unsigned long addr, int numpages)
/*
* for now UC MINUS. see comments in ioremap()
*/
- ret = reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
+ ret = memtype_reserve(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
_PAGE_CACHE_MODE_UC_MINUS, NULL);
if (ret)
goto out_err;
@@ -1813,7 +1813,7 @@ int set_memory_uc(unsigned long addr, int numpages)
return 0;
out_free:
- free_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
+ memtype_free(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
out_err:
return ret;
}
@@ -1839,14 +1839,14 @@ int set_memory_wc(unsigned long addr, int numpages)
{
int ret;
- ret = reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
+ ret = memtype_reserve(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
_PAGE_CACHE_MODE_WC, NULL);
if (ret)
return ret;
ret = _set_memory_wc(addr, numpages);
if (ret)
- free_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
+ memtype_free(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
return ret;
}
@@ -1873,7 +1873,7 @@ int set_memory_wb(unsigned long addr, int numpages)
if (ret)
return ret;
- free_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
+ memtype_free(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
return 0;
}
EXPORT_SYMBOL(set_memory_wb);
@@ -2014,7 +2014,7 @@ static int _set_pages_array(struct page **pages, int numpages,
continue;
start = page_to_pfn(pages[i]) << PAGE_SHIFT;
end = start + PAGE_SIZE;
- if (reserve_memtype(start, end, new_type, NULL))
+ if (memtype_reserve(start, end, new_type, NULL))
goto err_out;
}
@@ -2040,7 +2040,7 @@ err_out:
continue;
start = page_to_pfn(pages[i]) << PAGE_SHIFT;
end = start + PAGE_SIZE;
- free_memtype(start, end);
+ memtype_free(start, end);
}
return -EINVAL;
}
@@ -2089,7 +2089,7 @@ int set_pages_array_wb(struct page **pages, int numpages)
continue;
start = page_to_pfn(pages[i]) << PAGE_SHIFT;
end = start + PAGE_SIZE;
- free_memtype(start, end);
+ memtype_free(start, end);
}
return 0;
@@ -2215,7 +2215,7 @@ int __init kernel_map_pages_in_pgd(pgd_t *pgd, u64 pfn, unsigned long address,
.pgd = pgd,
.numpages = numpages,
.mask_set = __pgprot(0),
- .mask_clr = __pgprot(0),
+ .mask_clr = __pgprot(~page_flags & (_PAGE_NX|_PAGE_RW)),
.flags = 0,
};
@@ -2224,12 +2224,6 @@ int __init kernel_map_pages_in_pgd(pgd_t *pgd, u64 pfn, unsigned long address,
if (!(__supported_pte_mask & _PAGE_NX))
goto out;
- if (!(page_flags & _PAGE_NX))
- cpa.mask_clr = __pgprot(_PAGE_NX);
-
- if (!(page_flags & _PAGE_RW))
- cpa.mask_clr = __pgprot(_PAGE_RW);
-
if (!(page_flags & _PAGE_ENC))
cpa.mask_clr = pgprot_encrypted(cpa.mask_clr);
@@ -2281,5 +2275,5 @@ int __init kernel_unmap_pages_in_pgd(pgd_t *pgd, unsigned long address,
* be exposed to the rest of the kernel. Include these directly here.
*/
#ifdef CONFIG_CPA_DEBUG
-#include "pageattr-test.c"
+#include "cpa-test.c"
#endif
diff --git a/arch/x86/mm/pat_interval.c b/arch/x86/mm/pat_interval.c
deleted file mode 100644
index 6855362eaf21..000000000000
--- a/arch/x86/mm/pat_interval.c
+++ /dev/null
@@ -1,185 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Handle caching attributes in page tables (PAT)
- *
- * Authors: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
- * Suresh B Siddha <suresh.b.siddha@intel.com>
- *
- * Interval tree used to store the PAT memory type reservations.
- */
-
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-#include <linux/kernel.h>
-#include <linux/interval_tree_generic.h>
-#include <linux/sched.h>
-#include <linux/gfp.h>
-
-#include <asm/pgtable.h>
-#include <asm/pat.h>
-
-#include "pat_internal.h"
-
-/*
- * The memtype tree keeps track of memory type for specific
- * physical memory areas. Without proper tracking, conflicting memory
- * types in different mappings can cause CPU cache corruption.
- *
- * The tree is an interval tree (augmented rbtree) with tree ordered
- * on starting address. Tree can contain multiple entries for
- * different regions which overlap. All the aliases have the same
- * cache attributes of course.
- *
- * memtype_lock protects the rbtree.
- */
-static inline u64 memtype_interval_start(struct memtype *memtype)
-{
- return memtype->start;
-}
-
-static inline u64 memtype_interval_end(struct memtype *memtype)
-{
- return memtype->end - 1;
-}
-INTERVAL_TREE_DEFINE(struct memtype, rb, u64, subtree_max_end,
- memtype_interval_start, memtype_interval_end,
- static, memtype_interval)
-
-static struct rb_root_cached memtype_rbroot = RB_ROOT_CACHED;
-
-enum {
- MEMTYPE_EXACT_MATCH = 0,
- MEMTYPE_END_MATCH = 1
-};
-
-static struct memtype *memtype_match(u64 start, u64 end, int match_type)
-{
- struct memtype *match;
-
- match = memtype_interval_iter_first(&memtype_rbroot, start, end-1);
- while (match != NULL && match->start < end) {
- if ((match_type == MEMTYPE_EXACT_MATCH) &&
- (match->start == start) && (match->end == end))
- return match;
-
- if ((match_type == MEMTYPE_END_MATCH) &&
- (match->start < start) && (match->end == end))
- return match;
-
- match = memtype_interval_iter_next(match, start, end-1);
- }
-
- return NULL; /* Returns NULL if there is no match */
-}
-
-static int memtype_check_conflict(u64 start, u64 end,
- enum page_cache_mode reqtype,
- enum page_cache_mode *newtype)
-{
- struct memtype *match;
- enum page_cache_mode found_type = reqtype;
-
- match = memtype_interval_iter_first(&memtype_rbroot, start, end-1);
- if (match == NULL)
- goto success;
-
- if (match->type != found_type && newtype == NULL)
- goto failure;
-
- dprintk("Overlap at 0x%Lx-0x%Lx\n", match->start, match->end);
- found_type = match->type;
-
- match = memtype_interval_iter_next(match, start, end-1);
- while (match) {
- if (match->type != found_type)
- goto failure;
-
- match = memtype_interval_iter_next(match, start, end-1);
- }
-success:
- if (newtype)
- *newtype = found_type;
-
- return 0;
-
-failure:
- pr_info("x86/PAT: %s:%d conflicting memory types %Lx-%Lx %s<->%s\n",
- current->comm, current->pid, start, end,
- cattr_name(found_type), cattr_name(match->type));
- return -EBUSY;
-}
-
-int memtype_check_insert(struct memtype *new,
- enum page_cache_mode *ret_type)
-{
- int err = 0;
-
- err = memtype_check_conflict(new->start, new->end, new->type, ret_type);
- if (err)
- return err;
-
- if (ret_type)
- new->type = *ret_type;
-
- memtype_interval_insert(new, &memtype_rbroot);
- return 0;
-}
-
-struct memtype *memtype_erase(u64 start, u64 end)
-{
- struct memtype *data;
-
- /*
- * Since the memtype_rbroot tree allows overlapping ranges,
- * memtype_erase() checks with EXACT_MATCH first, i.e. free
- * a whole node for the munmap case. If no such entry is found,
- * it then checks with END_MATCH, i.e. shrink the size of a node
- * from the end for the mremap case.
- */
- data = memtype_match(start, end, MEMTYPE_EXACT_MATCH);
- if (!data) {
- data = memtype_match(start, end, MEMTYPE_END_MATCH);
- if (!data)
- return ERR_PTR(-EINVAL);
- }
-
- if (data->start == start) {
- /* munmap: erase this node */
- memtype_interval_remove(data, &memtype_rbroot);
- } else {
- /* mremap: update the end value of this node */
- memtype_interval_remove(data, &memtype_rbroot);
- data->end = start;
- memtype_interval_insert(data, &memtype_rbroot);
- return NULL;
- }
-
- return data;
-}
-
-struct memtype *memtype_lookup(u64 addr)
-{
- return memtype_interval_iter_first(&memtype_rbroot, addr,
- addr + PAGE_SIZE-1);
-}
-
-#if defined(CONFIG_DEBUG_FS)
-int memtype_copy_nth_element(struct memtype *out, loff_t pos)
-{
- struct memtype *match;
- int i = 1;
-
- match = memtype_interval_iter_first(&memtype_rbroot, 0, ULONG_MAX);
- while (match && pos != i) {
- match = memtype_interval_iter_next(match, 0, ULONG_MAX);
- i++;
- }
-
- if (match) { /* pos == i */
- *out = *match;
- return 0;
- } else {
- return 1;
- }
-}
-#endif
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 9bb7f0ab9fe6..0e6700eaa4f9 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -18,6 +18,7 @@
#include <asm/tlb.h>
#include <asm/tlbflush.h>
#include <asm/io.h>
+#include <linux/vmalloc.h>
unsigned int __VMALLOC_RESERVE = 128 << 20;
diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
index bdc98150d4db..fc3f3d3e2ef2 100644
--- a/arch/x86/mm/physaddr.c
+++ b/arch/x86/mm/physaddr.c
@@ -5,6 +5,7 @@
#include <linux/mm.h>
#include <asm/page.h>
+#include <linux/vmalloc.h>
#include "physaddr.h"
diff --git a/arch/x86/mm/testmmiotrace.c b/arch/x86/mm/testmmiotrace.c
index 92153d054d6c..bda73cb7a044 100644
--- a/arch/x86/mm/testmmiotrace.c
+++ b/arch/x86/mm/testmmiotrace.c
@@ -79,7 +79,7 @@ static void do_read_far_test(void __iomem *p)
static void do_test(unsigned long size)
{
- void __iomem *p = ioremap_nocache(mmio_address, size);
+ void __iomem *p = ioremap(mmio_address, size);
if (!p) {
pr_err("could not ioremap, aborting.\n");
return;
@@ -104,7 +104,7 @@ static void do_test_bulk_ioremapping(void)
int i;
for (i = 0; i < 10; ++i) {
- p = ioremap_nocache(mmio_address, PAGE_SIZE);
+ p = ioremap(mmio_address, PAGE_SIZE);
if (p)
iounmap(p);
}
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index e6a9edc5baaf..66f96f21a7b6 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -708,7 +708,7 @@ void native_flush_tlb_others(const struct cpumask *cpumask,
(void *)info, 1);
else
on_each_cpu_cond_mask(tlb_is_not_lazy, flush_tlb_func_remote,
- (void *)info, 1, GFP_ATOMIC, cpumask);
+ (void *)info, 1, cpumask);
}
/*
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index b8be18427277..9ba08e9abc09 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -10,10 +10,12 @@
#include <linux/if_vlan.h>
#include <linux/bpf.h>
#include <linux/memory.h>
+#include <linux/sort.h>
#include <asm/extable.h>
#include <asm/set_memory.h>
#include <asm/nospec-branch.h>
#include <asm/text-patching.h>
+#include <asm/asm-prototypes.h>
static u8 *emit_code(u8 *ptr, u32 bytes, unsigned int len)
{
@@ -1326,7 +1328,7 @@ emit_jmp:
return proglen;
}
-static void save_regs(struct btf_func_model *m, u8 **prog, int nr_args,
+static void save_regs(const struct btf_func_model *m, u8 **prog, int nr_args,
int stack_size)
{
int i;
@@ -1342,7 +1344,7 @@ static void save_regs(struct btf_func_model *m, u8 **prog, int nr_args,
-(stack_size - i * 8));
}
-static void restore_regs(struct btf_func_model *m, u8 **prog, int nr_args,
+static void restore_regs(const struct btf_func_model *m, u8 **prog, int nr_args,
int stack_size)
{
int i;
@@ -1359,7 +1361,7 @@ static void restore_regs(struct btf_func_model *m, u8 **prog, int nr_args,
-(stack_size - i * 8));
}
-static int invoke_bpf(struct btf_func_model *m, u8 **pprog,
+static int invoke_bpf(const struct btf_func_model *m, u8 **pprog,
struct bpf_prog **progs, int prog_cnt, int stack_size)
{
u8 *prog = *pprog;
@@ -1454,7 +1456,8 @@ static int invoke_bpf(struct btf_func_model *m, u8 **pprog,
* add rsp, 8 // skip eth_type_trans's frame
* ret // return to its caller
*/
-int arch_prepare_bpf_trampoline(void *image, struct btf_func_model *m, u32 flags,
+int arch_prepare_bpf_trampoline(void *image, void *image_end,
+ const struct btf_func_model *m, u32 flags,
struct bpf_prog **fentry_progs, int fentry_cnt,
struct bpf_prog **fexit_progs, int fexit_cnt,
void *orig_call)
@@ -1521,15 +1524,160 @@ int arch_prepare_bpf_trampoline(void *image, struct btf_func_model *m, u32 flags
/* skip our return address and return to parent */
EMIT4(0x48, 0x83, 0xC4, 8); /* add rsp, 8 */
EMIT1(0xC3); /* ret */
- /* One half of the page has active running trampoline.
- * Another half is an area for next trampoline.
- * Make sure the trampoline generation logic doesn't overflow.
- */
- if (WARN_ON_ONCE(prog - (u8 *)image > PAGE_SIZE / 2 - BPF_INSN_SAFETY))
+ /* Make sure the trampoline generation logic doesn't overflow */
+ if (WARN_ON_ONCE(prog > (u8 *)image_end - BPF_INSN_SAFETY))
return -EFAULT;
+ return prog - (u8 *)image;
+}
+
+static int emit_cond_near_jump(u8 **pprog, void *func, void *ip, u8 jmp_cond)
+{
+ u8 *prog = *pprog;
+ int cnt = 0;
+ s64 offset;
+
+ offset = func - (ip + 2 + 4);
+ if (!is_simm32(offset)) {
+ pr_err("Target %p is out of range\n", func);
+ return -EINVAL;
+ }
+ EMIT2_off32(0x0F, jmp_cond + 0x10, offset);
+ *pprog = prog;
+ return 0;
+}
+
+static void emit_nops(u8 **pprog, unsigned int len)
+{
+ unsigned int i, noplen;
+ u8 *prog = *pprog;
+ int cnt = 0;
+
+ while (len > 0) {
+ noplen = len;
+
+ if (noplen > ASM_NOP_MAX)
+ noplen = ASM_NOP_MAX;
+
+ for (i = 0; i < noplen; i++)
+ EMIT1(ideal_nops[noplen][i]);
+ len -= noplen;
+ }
+
+ *pprog = prog;
+}
+
+static int emit_fallback_jump(u8 **pprog)
+{
+ u8 *prog = *pprog;
+ int err = 0;
+
+#ifdef CONFIG_RETPOLINE
+ /* Note that this assumes the the compiler uses external
+ * thunks for indirect calls. Both clang and GCC use the same
+ * naming convention for external thunks.
+ */
+ err = emit_jump(&prog, __x86_indirect_thunk_rdx, prog);
+#else
+ int cnt = 0;
+
+ EMIT2(0xFF, 0xE2); /* jmp rdx */
+#endif
+ *pprog = prog;
+ return err;
+}
+
+static int emit_bpf_dispatcher(u8 **pprog, int a, int b, s64 *progs)
+{
+ u8 *jg_reloc, *jg_target, *prog = *pprog;
+ int pivot, err, jg_bytes = 1, cnt = 0;
+ s64 jg_offset;
+
+ if (a == b) {
+ /* Leaf node of recursion, i.e. not a range of indices
+ * anymore.
+ */
+ EMIT1(add_1mod(0x48, BPF_REG_3)); /* cmp rdx,func */
+ if (!is_simm32(progs[a]))
+ return -1;
+ EMIT2_off32(0x81, add_1reg(0xF8, BPF_REG_3),
+ progs[a]);
+ err = emit_cond_near_jump(&prog, /* je func */
+ (void *)progs[a], prog,
+ X86_JE);
+ if (err)
+ return err;
+
+ err = emit_fallback_jump(&prog); /* jmp thunk/indirect */
+ if (err)
+ return err;
+
+ *pprog = prog;
+ return 0;
+ }
+
+ /* Not a leaf node, so we pivot, and recursively descend into
+ * the lower and upper ranges.
+ */
+ pivot = (b - a) / 2;
+ EMIT1(add_1mod(0x48, BPF_REG_3)); /* cmp rdx,func */
+ if (!is_simm32(progs[a + pivot]))
+ return -1;
+ EMIT2_off32(0x81, add_1reg(0xF8, BPF_REG_3), progs[a + pivot]);
+
+ if (pivot > 2) { /* jg upper_part */
+ /* Require near jump. */
+ jg_bytes = 4;
+ EMIT2_off32(0x0F, X86_JG + 0x10, 0);
+ } else {
+ EMIT2(X86_JG, 0);
+ }
+ jg_reloc = prog;
+
+ err = emit_bpf_dispatcher(&prog, a, a + pivot, /* emit lower_part */
+ progs);
+ if (err)
+ return err;
+
+ /* From Intel 64 and IA-32 Architectures Optimization
+ * Reference Manual, 3.4.1.4 Code Alignment, Assembly/Compiler
+ * Coding Rule 11: All branch targets should be 16-byte
+ * aligned.
+ */
+ jg_target = PTR_ALIGN(prog, 16);
+ if (jg_target != prog)
+ emit_nops(&prog, jg_target - prog);
+ jg_offset = prog - jg_reloc;
+ emit_code(jg_reloc - jg_bytes, jg_offset, jg_bytes);
+
+ err = emit_bpf_dispatcher(&prog, a + pivot + 1, /* emit upper_part */
+ b, progs);
+ if (err)
+ return err;
+
+ *pprog = prog;
return 0;
}
+static int cmp_ips(const void *a, const void *b)
+{
+ const s64 *ipa = a;
+ const s64 *ipb = b;
+
+ if (*ipa > *ipb)
+ return 1;
+ if (*ipa < *ipb)
+ return -1;
+ return 0;
+}
+
+int arch_prepare_bpf_dispatcher(void *image, s64 *funcs, int num_funcs)
+{
+ u8 *prog = image;
+
+ sort(funcs, num_funcs, sizeof(funcs[0]), cmp_ips, NULL);
+ return emit_bpf_dispatcher(&prog, 0, num_funcs - 1, funcs);
+}
+
struct x64_jit_data {
struct bpf_binary_header *header;
int *addrs;
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 9df652d3d927..fa855bbaebaf 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -34,7 +34,7 @@
#include <linux/errno.h>
#include <linux/memblock.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/e820/api.h>
#include <asm/pci_x86.h>
#include <asm/io_apic.h>
diff --git a/arch/x86/pci/mmconfig_64.c b/arch/x86/pci/mmconfig_64.c
index 887d181b769b..0c7b6e66c644 100644
--- a/arch/x86/pci/mmconfig_64.c
+++ b/arch/x86/pci/mmconfig_64.c
@@ -105,7 +105,7 @@ static void __iomem *mcfg_ioremap(struct pci_mmcfg_region *cfg)
start = cfg->address + PCI_MMCFG_BUS_OFFSET(cfg->start_bus);
num_buses = cfg->end_bus - cfg->start_bus + 1;
size = PCI_MMCFG_BUS_OFFSET(num_buses);
- addr = ioremap_nocache(start, size);
+ addr = ioremap(start, size);
if (addr)
addr -= PCI_MMCFG_BUS_OFFSET(cfg->start_bus);
return addr;
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile
index fe29f3f5d384..84b09c230cbd 100644
--- a/arch/x86/platform/efi/Makefile
+++ b/arch/x86/platform/efi/Makefile
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
OBJECT_FILES_NON_STANDARD_efi_thunk_$(BITS).o := y
-OBJECT_FILES_NON_STANDARD_efi_stub_$(BITS).o := y
+KASAN_SANITIZE := n
+GCOV_PROFILE := n
obj-$(CONFIG_EFI) += quirks.o efi.o efi_$(BITS).o efi_stub_$(BITS).o
obj-$(CONFIG_EFI_MIXED) += efi_thunk_$(BITS).o
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 38d44f36d5ed..59f7f6d60cf6 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -54,8 +54,8 @@
#include <asm/x86_init.h>
#include <asm/uv/uv.h>
-static struct efi efi_phys __initdata;
static efi_system_table_t efi_systab __initdata;
+static u64 efi_systab_phys __initdata;
static efi_config_table_type_t arch_tables[] __initdata = {
#ifdef CONFIG_X86_UV
@@ -97,32 +97,6 @@ static int __init setup_add_efi_memmap(char *arg)
}
early_param("add_efi_memmap", setup_add_efi_memmap);
-static efi_status_t __init phys_efi_set_virtual_address_map(
- unsigned long memory_map_size,
- unsigned long descriptor_size,
- u32 descriptor_version,
- efi_memory_desc_t *virtual_map)
-{
- efi_status_t status;
- unsigned long flags;
- pgd_t *save_pgd;
-
- save_pgd = efi_call_phys_prolog();
- if (!save_pgd)
- return EFI_ABORTED;
-
- /* Disable interrupts around EFI calls: */
- local_irq_save(flags);
- status = efi_call_phys(efi_phys.set_virtual_address_map,
- memory_map_size, descriptor_size,
- descriptor_version, virtual_map);
- local_irq_restore(flags);
-
- efi_call_phys_epilog(save_pgd);
-
- return status;
-}
-
void __init efi_find_mirror(void)
{
efi_memory_desc_t *md;
@@ -330,10 +304,16 @@ static void __init efi_clean_memmap(void)
}
if (n_removal > 0) {
- u64 size = efi.memmap.nr_map - n_removal;
+ struct efi_memory_map_data data = {
+ .phys_map = efi.memmap.phys_map,
+ .desc_version = efi.memmap.desc_version,
+ .desc_size = efi.memmap.desc_size,
+ .size = data.desc_size * (efi.memmap.nr_map - n_removal),
+ .flags = 0,
+ };
pr_warn("Removing %d invalid memory map entries.\n", n_removal);
- efi_memmap_install(efi.memmap.phys_map, size);
+ efi_memmap_install(&data);
}
}
@@ -353,89 +333,90 @@ void __init efi_print_memmap(void)
}
}
-static int __init efi_systab_init(void *phys)
+static int __init efi_systab_init(u64 phys)
{
+ int size = efi_enabled(EFI_64BIT) ? sizeof(efi_system_table_64_t)
+ : sizeof(efi_system_table_32_t);
+ bool over4g = false;
+ void *p;
+
+ p = early_memremap_ro(phys, size);
+ if (p == NULL) {
+ pr_err("Couldn't map the system table!\n");
+ return -ENOMEM;
+ }
+
if (efi_enabled(EFI_64BIT)) {
- efi_system_table_64_t *systab64;
- struct efi_setup_data *data = NULL;
- u64 tmp = 0;
+ const efi_system_table_64_t *systab64 = p;
+
+ efi_systab.hdr = systab64->hdr;
+ efi_systab.fw_vendor = systab64->fw_vendor;
+ efi_systab.fw_revision = systab64->fw_revision;
+ efi_systab.con_in_handle = systab64->con_in_handle;
+ efi_systab.con_in = systab64->con_in;
+ efi_systab.con_out_handle = systab64->con_out_handle;
+ efi_systab.con_out = (void *)(unsigned long)systab64->con_out;
+ efi_systab.stderr_handle = systab64->stderr_handle;
+ efi_systab.stderr = systab64->stderr;
+ efi_systab.runtime = (void *)(unsigned long)systab64->runtime;
+ efi_systab.boottime = (void *)(unsigned long)systab64->boottime;
+ efi_systab.nr_tables = systab64->nr_tables;
+ efi_systab.tables = systab64->tables;
+
+ over4g = systab64->con_in_handle > U32_MAX ||
+ systab64->con_in > U32_MAX ||
+ systab64->con_out_handle > U32_MAX ||
+ systab64->con_out > U32_MAX ||
+ systab64->stderr_handle > U32_MAX ||
+ systab64->stderr > U32_MAX ||
+ systab64->boottime > U32_MAX;
if (efi_setup) {
- data = early_memremap(efi_setup, sizeof(*data));
- if (!data)
+ struct efi_setup_data *data;
+
+ data = early_memremap_ro(efi_setup, sizeof(*data));
+ if (!data) {
+ early_memunmap(p, size);
return -ENOMEM;
- }
- systab64 = early_memremap((unsigned long)phys,
- sizeof(*systab64));
- if (systab64 == NULL) {
- pr_err("Couldn't map the system table!\n");
- if (data)
- early_memunmap(data, sizeof(*data));
- return -ENOMEM;
- }
+ }
+
+ efi_systab.fw_vendor = (unsigned long)data->fw_vendor;
+ efi_systab.runtime = (void *)(unsigned long)data->runtime;
+ efi_systab.tables = (unsigned long)data->tables;
+
+ over4g |= data->fw_vendor > U32_MAX ||
+ data->runtime > U32_MAX ||
+ data->tables > U32_MAX;
- efi_systab.hdr = systab64->hdr;
- efi_systab.fw_vendor = data ? (unsigned long)data->fw_vendor :
- systab64->fw_vendor;
- tmp |= data ? data->fw_vendor : systab64->fw_vendor;
- efi_systab.fw_revision = systab64->fw_revision;
- efi_systab.con_in_handle = systab64->con_in_handle;
- tmp |= systab64->con_in_handle;
- efi_systab.con_in = systab64->con_in;
- tmp |= systab64->con_in;
- efi_systab.con_out_handle = systab64->con_out_handle;
- tmp |= systab64->con_out_handle;
- efi_systab.con_out = systab64->con_out;
- tmp |= systab64->con_out;
- efi_systab.stderr_handle = systab64->stderr_handle;
- tmp |= systab64->stderr_handle;
- efi_systab.stderr = systab64->stderr;
- tmp |= systab64->stderr;
- efi_systab.runtime = data ?
- (void *)(unsigned long)data->runtime :
- (void *)(unsigned long)systab64->runtime;
- tmp |= data ? data->runtime : systab64->runtime;
- efi_systab.boottime = (void *)(unsigned long)systab64->boottime;
- tmp |= systab64->boottime;
- efi_systab.nr_tables = systab64->nr_tables;
- efi_systab.tables = data ? (unsigned long)data->tables :
- systab64->tables;
- tmp |= data ? data->tables : systab64->tables;
-
- early_memunmap(systab64, sizeof(*systab64));
- if (data)
early_memunmap(data, sizeof(*data));
-#ifdef CONFIG_X86_32
- if (tmp >> 32) {
- pr_err("EFI data located above 4GB, disabling EFI.\n");
- return -EINVAL;
+ } else {
+ over4g |= systab64->fw_vendor > U32_MAX ||
+ systab64->runtime > U32_MAX ||
+ systab64->tables > U32_MAX;
}
-#endif
} else {
- efi_system_table_32_t *systab32;
-
- systab32 = early_memremap((unsigned long)phys,
- sizeof(*systab32));
- if (systab32 == NULL) {
- pr_err("Couldn't map the system table!\n");
- return -ENOMEM;
- }
-
- efi_systab.hdr = systab32->hdr;
- efi_systab.fw_vendor = systab32->fw_vendor;
- efi_systab.fw_revision = systab32->fw_revision;
- efi_systab.con_in_handle = systab32->con_in_handle;
- efi_systab.con_in = systab32->con_in;
- efi_systab.con_out_handle = systab32->con_out_handle;
- efi_systab.con_out = systab32->con_out;
- efi_systab.stderr_handle = systab32->stderr_handle;
- efi_systab.stderr = systab32->stderr;
- efi_systab.runtime = (void *)(unsigned long)systab32->runtime;
- efi_systab.boottime = (void *)(unsigned long)systab32->boottime;
- efi_systab.nr_tables = systab32->nr_tables;
- efi_systab.tables = systab32->tables;
-
- early_memunmap(systab32, sizeof(*systab32));
+ const efi_system_table_32_t *systab32 = p;
+
+ efi_systab.hdr = systab32->hdr;
+ efi_systab.fw_vendor = systab32->fw_vendor;
+ efi_systab.fw_revision = systab32->fw_revision;
+ efi_systab.con_in_handle = systab32->con_in_handle;
+ efi_systab.con_in = systab32->con_in;
+ efi_systab.con_out_handle = systab32->con_out_handle;
+ efi_systab.con_out = (void *)(unsigned long)systab32->con_out;
+ efi_systab.stderr_handle = systab32->stderr_handle;
+ efi_systab.stderr = systab32->stderr;
+ efi_systab.runtime = (void *)(unsigned long)systab32->runtime;
+ efi_systab.boottime = (void *)(unsigned long)systab32->boottime;
+ efi_systab.nr_tables = systab32->nr_tables;
+ efi_systab.tables = systab32->tables;
+ }
+
+ early_memunmap(p, size);
+
+ if (IS_ENABLED(CONFIG_X86_32) && over4g) {
+ pr_err("EFI data located above 4GB, disabling EFI.\n");
+ return -EINVAL;
}
efi.systab = &efi_systab;
@@ -455,108 +436,23 @@ static int __init efi_systab_init(void *phys)
return 0;
}
-static int __init efi_runtime_init32(void)
-{
- efi_runtime_services_32_t *runtime;
-
- runtime = early_memremap((unsigned long)efi.systab->runtime,
- sizeof(efi_runtime_services_32_t));
- if (!runtime) {
- pr_err("Could not map the runtime service table!\n");
- return -ENOMEM;
- }
-
- /*
- * We will only need *early* access to the SetVirtualAddressMap
- * EFI runtime service. All other runtime services will be called
- * via the virtual mapping.
- */
- efi_phys.set_virtual_address_map =
- (efi_set_virtual_address_map_t *)
- (unsigned long)runtime->set_virtual_address_map;
- early_memunmap(runtime, sizeof(efi_runtime_services_32_t));
-
- return 0;
-}
-
-static int __init efi_runtime_init64(void)
-{
- efi_runtime_services_64_t *runtime;
-
- runtime = early_memremap((unsigned long)efi.systab->runtime,
- sizeof(efi_runtime_services_64_t));
- if (!runtime) {
- pr_err("Could not map the runtime service table!\n");
- return -ENOMEM;
- }
-
- /*
- * We will only need *early* access to the SetVirtualAddressMap
- * EFI runtime service. All other runtime services will be called
- * via the virtual mapping.
- */
- efi_phys.set_virtual_address_map =
- (efi_set_virtual_address_map_t *)
- (unsigned long)runtime->set_virtual_address_map;
- early_memunmap(runtime, sizeof(efi_runtime_services_64_t));
-
- return 0;
-}
-
-static int __init efi_runtime_init(void)
-{
- int rv;
-
- /*
- * Check out the runtime services table. We need to map
- * the runtime services table so that we can grab the physical
- * address of several of the EFI runtime functions, needed to
- * set the firmware into virtual mode.
- *
- * When EFI_PARAVIRT is in force then we could not map runtime
- * service memory region because we do not have direct access to it.
- * However, runtime services are available through proxy functions
- * (e.g. in case of Xen dom0 EFI implementation they call special
- * hypercall which executes relevant EFI functions) and that is why
- * they are always enabled.
- */
-
- if (!efi_enabled(EFI_PARAVIRT)) {
- if (efi_enabled(EFI_64BIT))
- rv = efi_runtime_init64();
- else
- rv = efi_runtime_init32();
-
- if (rv)
- return rv;
- }
-
- set_bit(EFI_RUNTIME_SERVICES, &efi.flags);
-
- return 0;
-}
-
void __init efi_init(void)
{
efi_char16_t *c16;
char vendor[100] = "unknown";
int i = 0;
- void *tmp;
-#ifdef CONFIG_X86_32
- if (boot_params.efi_info.efi_systab_hi ||
- boot_params.efi_info.efi_memmap_hi) {
+ if (IS_ENABLED(CONFIG_X86_32) &&
+ (boot_params.efi_info.efi_systab_hi ||
+ boot_params.efi_info.efi_memmap_hi)) {
pr_info("Table located above 4GB, disabling EFI.\n");
return;
}
- efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
-#else
- efi_phys.systab = (efi_system_table_t *)
- (boot_params.efi_info.efi_systab |
- ((__u64)boot_params.efi_info.efi_systab_hi<<32));
-#endif
- if (efi_systab_init(efi_phys.systab))
+ efi_systab_phys = boot_params.efi_info.efi_systab |
+ ((__u64)boot_params.efi_info.efi_systab_hi << 32);
+
+ if (efi_systab_init(efi_systab_phys))
return;
efi.config_table = (unsigned long)efi.systab->tables;
@@ -566,14 +462,16 @@ void __init efi_init(void)
/*
* Show what we know for posterity
*/
- c16 = tmp = early_memremap(efi.systab->fw_vendor, 2);
+ c16 = early_memremap_ro(efi.systab->fw_vendor,
+ sizeof(vendor) * sizeof(efi_char16_t));
if (c16) {
- for (i = 0; i < sizeof(vendor) - 1 && *c16; ++i)
- vendor[i] = *c16++;
+ for (i = 0; i < sizeof(vendor) - 1 && c16[i]; ++i)
+ vendor[i] = c16[i];
vendor[i] = '\0';
- } else
+ early_memunmap(c16, sizeof(vendor) * sizeof(efi_char16_t));
+ } else {
pr_err("Could not map the firmware vendor!\n");
- early_memunmap(tmp, 2);
+ }
pr_info("EFI v%u.%.02u by %s\n",
efi.systab->hdr.revision >> 16,
@@ -592,19 +490,21 @@ void __init efi_init(void)
if (!efi_runtime_supported())
pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
- else {
- if (efi_runtime_disabled() || efi_runtime_init()) {
- efi_memmap_unmap();
- return;
- }
+
+ if (!efi_runtime_supported() || efi_runtime_disabled()) {
+ efi_memmap_unmap();
+ return;
}
+ set_bit(EFI_RUNTIME_SERVICES, &efi.flags);
efi_clean_memmap();
if (efi_enabled(EFI_DBG))
efi_print_memmap();
}
+#if defined(CONFIG_X86_32) || defined(CONFIG_X86_UV)
+
void __init efi_set_executable(efi_memory_desc_t *md, bool executable)
{
u64 addr, npages;
@@ -669,6 +569,8 @@ void __init old_map_region(efi_memory_desc_t *md)
(unsigned long long)md->phys_addr);
}
+#endif
+
/* Merge contiguous regions of the same type and attribute */
static void __init efi_merge_regions(void)
{
@@ -707,7 +609,7 @@ static void __init get_systab_virt_addr(efi_memory_desc_t *md)
size = md->num_pages << EFI_PAGE_SHIFT;
end = md->phys_addr + size;
- systab = (u64)(unsigned long)efi_phys.systab;
+ systab = efi_systab_phys;
if (md->phys_addr <= systab && systab < end) {
systab += md->virt_addr - md->phys_addr;
efi.systab = (efi_system_table_t *)(unsigned long)systab;
@@ -767,7 +669,7 @@ static inline void *efi_map_next_entry_reverse(void *entry)
*/
static void *efi_map_next_entry(void *entry)
{
- if (!efi_enabled(EFI_OLD_MEMMAP) && efi_enabled(EFI_64BIT)) {
+ if (!efi_have_uv1_memmap() && efi_enabled(EFI_64BIT)) {
/*
* Starting in UEFI v2.5 the EFI_PROPERTIES_TABLE
* config table feature requires us to map all entries
@@ -828,7 +730,7 @@ static bool should_map_region(efi_memory_desc_t *md)
* Map all of RAM so that we can access arguments in the 1:1
* mapping when making EFI runtime calls.
*/
- if (IS_ENABLED(CONFIG_EFI_MIXED) && !efi_is_native()) {
+ if (efi_is_mixed()) {
if (md->type == EFI_CONVENTIONAL_MEMORY ||
md->type == EFI_LOADER_DATA ||
md->type == EFI_LOADER_CODE)
@@ -899,11 +801,11 @@ static void __init kexec_enter_virtual_mode(void)
/*
* We don't do virtual mode, since we don't do runtime services, on
- * non-native EFI. With efi=old_map, we don't do runtime services in
+ * non-native EFI. With the UV1 memmap, we don't do runtime services in
* kexec kernel because in the initial boot something else might
* have been mapped at these virtual addresses.
*/
- if (!efi_is_native() || efi_enabled(EFI_OLD_MEMMAP)) {
+ if (efi_is_mixed() || efi_have_uv1_memmap()) {
efi_memmap_unmap();
clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
return;
@@ -958,11 +860,6 @@ static void __init kexec_enter_virtual_mode(void)
efi.runtime_version = efi_systab.hdr.revision;
efi_native_runtime_setup();
-
- efi.set_virtual_address_map = NULL;
-
- if (efi_enabled(EFI_OLD_MEMMAP) && (__supported_pte_mask & _PAGE_NX))
- runtime_code_page_mkexec();
#endif
}
@@ -974,9 +871,9 @@ static void __init kexec_enter_virtual_mode(void)
*
* The old method which used to update that memory descriptor with the
* virtual address obtained from ioremap() is still supported when the
- * kernel is booted with efi=old_map on its command line. Same old
- * method enabled the runtime services to be called without having to
- * thunk back into physical mode for every invocation.
+ * kernel is booted on SG1 UV1 hardware. Same old method enabled the
+ * runtime services to be called without having to thunk back into
+ * physical mode for every invocation.
*
* The new method does a pagetable switch in a preemption-safe manner
* so that we're in a different address space when calling a runtime
@@ -999,16 +896,14 @@ static void __init __efi_enter_virtual_mode(void)
if (efi_alloc_page_tables()) {
pr_err("Failed to allocate EFI page tables\n");
- clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
- return;
+ goto err;
}
efi_merge_regions();
new_memmap = efi_map_regions(&count, &pg_shift);
if (!new_memmap) {
pr_err("Error reallocating memory, EFI runtime non-functional!\n");
- clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
- return;
+ goto err;
}
pa = __pa(new_memmap);
@@ -1022,8 +917,7 @@ static void __init __efi_enter_virtual_mode(void)
if (efi_memmap_init_late(pa, efi.memmap.desc_size * count)) {
pr_err("Failed to remap late EFI memory map\n");
- clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
- return;
+ goto err;
}
if (efi_enabled(EFI_DBG)) {
@@ -1031,34 +925,22 @@ static void __init __efi_enter_virtual_mode(void)
efi_print_memmap();
}
- BUG_ON(!efi.systab);
+ if (WARN_ON(!efi.systab))
+ goto err;
- if (efi_setup_page_tables(pa, 1 << pg_shift)) {
- clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
- return;
- }
+ if (efi_setup_page_tables(pa, 1 << pg_shift))
+ goto err;
efi_sync_low_kernel_mappings();
- if (efi_is_native()) {
- status = phys_efi_set_virtual_address_map(
- efi.memmap.desc_size * count,
- efi.memmap.desc_size,
- efi.memmap.desc_version,
- (efi_memory_desc_t *)pa);
- } else {
- status = efi_thunk_set_virtual_address_map(
- efi_phys.set_virtual_address_map,
- efi.memmap.desc_size * count,
- efi.memmap.desc_size,
- efi.memmap.desc_version,
- (efi_memory_desc_t *)pa);
- }
-
+ status = efi_set_virtual_address_map(efi.memmap.desc_size * count,
+ efi.memmap.desc_size,
+ efi.memmap.desc_version,
+ (efi_memory_desc_t *)pa);
if (status != EFI_SUCCESS) {
- pr_alert("Unable to switch EFI into virtual mode (status=%lx)!\n",
- status);
- panic("EFI call to SetVirtualAddressMap() failed!");
+ pr_err("Unable to switch EFI into virtual mode (status=%lx)!\n",
+ status);
+ goto err;
}
efi_free_boot_services();
@@ -1071,13 +953,11 @@ static void __init __efi_enter_virtual_mode(void)
*/
efi.runtime_version = efi_systab.hdr.revision;
- if (efi_is_native())
+ if (!efi_is_mixed())
efi_native_runtime_setup();
else
efi_thunk_runtime_setup();
- efi.set_virtual_address_map = NULL;
-
/*
* Apply more restrictive page table mapping attributes now that
* SVAM() has been called and the firmware has performed all
@@ -1087,6 +967,10 @@ static void __init __efi_enter_virtual_mode(void)
/* clean DUMMY object */
efi_delete_dummy_variable();
+ return;
+
+err:
+ clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
}
void __init efi_enter_virtual_mode(void)
@@ -1102,20 +986,6 @@ void __init efi_enter_virtual_mode(void)
efi_dump_pagetable();
}
-static int __init arch_parse_efi_cmdline(char *str)
-{
- if (!str) {
- pr_warn("need at least one option\n");
- return -EINVAL;
- }
-
- if (parse_option_str(str, "old_map"))
- set_bit(EFI_OLD_MEMMAP, &efi.flags);
-
- return 0;
-}
-early_param("efi", arch_parse_efi_cmdline);
-
bool efi_is_table_address(unsigned long phys_addr)
{
unsigned int i;
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 9959657127f4..71dddd1620f9 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -66,9 +66,17 @@ void __init efi_map_region(efi_memory_desc_t *md)
void __init efi_map_region_fixed(efi_memory_desc_t *md) {}
void __init parse_efi_setup(u64 phys_addr, u32 data_len) {}
-pgd_t * __init efi_call_phys_prolog(void)
+efi_status_t efi_call_svam(efi_set_virtual_address_map_t *__efiapi *,
+ u32, u32, u32, void *);
+
+efi_status_t __init efi_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map)
{
struct desc_ptr gdt_descr;
+ efi_status_t status;
+ unsigned long flags;
pgd_t *save_pgd;
/* Current pgd is swapper_pg_dir, we'll restore it later: */
@@ -80,14 +88,18 @@ pgd_t * __init efi_call_phys_prolog(void)
gdt_descr.size = GDT_SIZE - 1;
load_gdt(&gdt_descr);
- return save_pgd;
-}
+ /* Disable interrupts around EFI calls: */
+ local_irq_save(flags);
+ status = efi_call_svam(&efi.systab->runtime->set_virtual_address_map,
+ memory_map_size, descriptor_size,
+ descriptor_version, virtual_map);
+ local_irq_restore(flags);
-void __init efi_call_phys_epilog(pgd_t *save_pgd)
-{
load_fixmap_gdt(0);
load_cr3(save_pgd);
__flush_tlb_all();
+
+ return status;
}
void __init efi_runtime_update_mappings(void)
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 08ce8177c3af..e2accfe636bd 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -57,142 +57,6 @@ static u64 efi_va = EFI_VA_START;
struct efi_scratch efi_scratch;
-static void __init early_code_mapping_set_exec(int executable)
-{
- efi_memory_desc_t *md;
-
- if (!(__supported_pte_mask & _PAGE_NX))
- return;
-
- /* Make EFI service code area executable */
- for_each_efi_memory_desc(md) {
- if (md->type == EFI_RUNTIME_SERVICES_CODE ||
- md->type == EFI_BOOT_SERVICES_CODE)
- efi_set_executable(md, executable);
- }
-}
-
-pgd_t * __init efi_call_phys_prolog(void)
-{
- unsigned long vaddr, addr_pgd, addr_p4d, addr_pud;
- pgd_t *save_pgd, *pgd_k, *pgd_efi;
- p4d_t *p4d, *p4d_k, *p4d_efi;
- pud_t *pud;
-
- int pgd;
- int n_pgds, i, j;
-
- if (!efi_enabled(EFI_OLD_MEMMAP)) {
- efi_switch_mm(&efi_mm);
- return efi_mm.pgd;
- }
-
- early_code_mapping_set_exec(1);
-
- n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
- save_pgd = kmalloc_array(n_pgds, sizeof(*save_pgd), GFP_KERNEL);
- if (!save_pgd)
- return NULL;
-
- /*
- * Build 1:1 identity mapping for efi=old_map usage. Note that
- * PAGE_OFFSET is PGDIR_SIZE aligned when KASLR is disabled, while
- * it is PUD_SIZE ALIGNED with KASLR enabled. So for a given physical
- * address X, the pud_index(X) != pud_index(__va(X)), we can only copy
- * PUD entry of __va(X) to fill in pud entry of X to build 1:1 mapping.
- * This means here we can only reuse the PMD tables of the direct mapping.
- */
- for (pgd = 0; pgd < n_pgds; pgd++) {
- addr_pgd = (unsigned long)(pgd * PGDIR_SIZE);
- vaddr = (unsigned long)__va(pgd * PGDIR_SIZE);
- pgd_efi = pgd_offset_k(addr_pgd);
- save_pgd[pgd] = *pgd_efi;
-
- p4d = p4d_alloc(&init_mm, pgd_efi, addr_pgd);
- if (!p4d) {
- pr_err("Failed to allocate p4d table!\n");
- goto out;
- }
-
- for (i = 0; i < PTRS_PER_P4D; i++) {
- addr_p4d = addr_pgd + i * P4D_SIZE;
- p4d_efi = p4d + p4d_index(addr_p4d);
-
- pud = pud_alloc(&init_mm, p4d_efi, addr_p4d);
- if (!pud) {
- pr_err("Failed to allocate pud table!\n");
- goto out;
- }
-
- for (j = 0; j < PTRS_PER_PUD; j++) {
- addr_pud = addr_p4d + j * PUD_SIZE;
-
- if (addr_pud > (max_pfn << PAGE_SHIFT))
- break;
-
- vaddr = (unsigned long)__va(addr_pud);
-
- pgd_k = pgd_offset_k(vaddr);
- p4d_k = p4d_offset(pgd_k, vaddr);
- pud[j] = *pud_offset(p4d_k, vaddr);
- }
- }
- pgd_offset_k(pgd * PGDIR_SIZE)->pgd &= ~_PAGE_NX;
- }
-
- __flush_tlb_all();
- return save_pgd;
-out:
- efi_call_phys_epilog(save_pgd);
- return NULL;
-}
-
-void __init efi_call_phys_epilog(pgd_t *save_pgd)
-{
- /*
- * After the lock is released, the original page table is restored.
- */
- int pgd_idx, i;
- int nr_pgds;
- pgd_t *pgd;
- p4d_t *p4d;
- pud_t *pud;
-
- if (!efi_enabled(EFI_OLD_MEMMAP)) {
- efi_switch_mm(efi_scratch.prev_mm);
- return;
- }
-
- nr_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT) , PGDIR_SIZE);
-
- for (pgd_idx = 0; pgd_idx < nr_pgds; pgd_idx++) {
- pgd = pgd_offset_k(pgd_idx * PGDIR_SIZE);
- set_pgd(pgd_offset_k(pgd_idx * PGDIR_SIZE), save_pgd[pgd_idx]);
-
- if (!pgd_present(*pgd))
- continue;
-
- for (i = 0; i < PTRS_PER_P4D; i++) {
- p4d = p4d_offset(pgd,
- pgd_idx * PGDIR_SIZE + i * P4D_SIZE);
-
- if (!p4d_present(*p4d))
- continue;
-
- pud = (pud_t *)p4d_page_vaddr(*p4d);
- pud_free(&init_mm, pud);
- }
-
- p4d = (p4d_t *)pgd_page_vaddr(*pgd);
- p4d_free(&init_mm, p4d);
- }
-
- kfree(save_pgd);
-
- __flush_tlb_all();
- early_code_mapping_set_exec(0);
-}
-
EXPORT_SYMBOL_GPL(efi_mm);
/*
@@ -211,7 +75,7 @@ int __init efi_alloc_page_tables(void)
pud_t *pud;
gfp_t gfp_mask;
- if (efi_enabled(EFI_OLD_MEMMAP))
+ if (efi_have_uv1_memmap())
return 0;
gfp_mask = GFP_KERNEL | __GFP_ZERO;
@@ -252,7 +116,7 @@ void efi_sync_low_kernel_mappings(void)
pud_t *pud_k, *pud_efi;
pgd_t *efi_pgd = efi_mm.pgd;
- if (efi_enabled(EFI_OLD_MEMMAP))
+ if (efi_have_uv1_memmap())
return;
/*
@@ -346,7 +210,7 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
unsigned npages;
pgd_t *pgd = efi_mm.pgd;
- if (efi_enabled(EFI_OLD_MEMMAP))
+ if (efi_have_uv1_memmap())
return 0;
/*
@@ -373,10 +237,6 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
* as trim_bios_range() will reserve the first page and isolate it away
* from memory allocators anyway.
*/
- pf = _PAGE_RW;
- if (sev_active())
- pf |= _PAGE_ENC;
-
if (kernel_map_pages_in_pgd(pgd, 0x0, 0x0, 1, pf)) {
pr_err("Failed to create 1:1 mapping for the first page!\n");
return 1;
@@ -388,21 +248,22 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
* text and allocate a new stack because we can't rely on the
* stack pointer being < 4GB.
*/
- if (!IS_ENABLED(CONFIG_EFI_MIXED) || efi_is_native())
+ if (!efi_is_mixed())
return 0;
page = alloc_page(GFP_KERNEL|__GFP_DMA32);
- if (!page)
- panic("Unable to allocate EFI runtime stack < 4GB\n");
+ if (!page) {
+ pr_err("Unable to allocate EFI runtime stack < 4GB\n");
+ return 1;
+ }
- efi_scratch.phys_stack = virt_to_phys(page_address(page));
- efi_scratch.phys_stack += PAGE_SIZE; /* stack grows down */
+ efi_scratch.phys_stack = page_to_phys(page + 1); /* stack grows down */
- npages = (_etext - _text) >> PAGE_SHIFT;
+ npages = (__end_rodata_aligned - _text) >> PAGE_SHIFT;
text = __pa(_text);
pfn = text >> PAGE_SHIFT;
- pf = _PAGE_RW | _PAGE_ENC;
+ pf = _PAGE_ENC;
if (kernel_map_pages_in_pgd(pgd, pfn, text, npages, pf)) {
pr_err("Failed to map kernel text 1:1\n");
return 1;
@@ -417,6 +278,22 @@ static void __init __map_region(efi_memory_desc_t *md, u64 va)
unsigned long pfn;
pgd_t *pgd = efi_mm.pgd;
+ /*
+ * EFI_RUNTIME_SERVICES_CODE regions typically cover PE/COFF
+ * executable images in memory that consist of both R-X and
+ * RW- sections, so we cannot apply read-only or non-exec
+ * permissions just yet. However, modern EFI systems provide
+ * a memory attributes table that describes those sections
+ * with the appropriate restricted permissions, which are
+ * applied in efi_runtime_update_mappings() below. All other
+ * regions can be mapped non-executable at this point, with
+ * the exception of boot services code regions, but those will
+ * be unmapped again entirely in efi_free_boot_services().
+ */
+ if (md->type != EFI_BOOT_SERVICES_CODE &&
+ md->type != EFI_RUNTIME_SERVICES_CODE)
+ flags |= _PAGE_NX;
+
if (!(md->attribute & EFI_MEMORY_WB))
flags |= _PAGE_PCD;
@@ -434,7 +311,7 @@ void __init efi_map_region(efi_memory_desc_t *md)
unsigned long size = md->num_pages << PAGE_SHIFT;
u64 pa = md->phys_addr;
- if (efi_enabled(EFI_OLD_MEMMAP))
+ if (efi_have_uv1_memmap())
return old_map_region(md);
/*
@@ -449,7 +326,7 @@ void __init efi_map_region(efi_memory_desc_t *md)
* booting in EFI mixed mode, because even though we may be
* running a 64-bit kernel, the firmware may only be 32-bit.
*/
- if (!efi_is_native () && IS_ENABLED(CONFIG_EFI_MIXED)) {
+ if (efi_is_mixed()) {
md->virt_addr = md->phys_addr;
return;
}
@@ -491,26 +368,6 @@ void __init efi_map_region_fixed(efi_memory_desc_t *md)
__map_region(md, md->virt_addr);
}
-void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size,
- u32 type, u64 attribute)
-{
- unsigned long last_map_pfn;
-
- if (type == EFI_MEMORY_MAPPED_IO)
- return ioremap(phys_addr, size);
-
- last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size);
- if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) {
- unsigned long top = last_map_pfn << PAGE_SHIFT;
- efi_ioremap(top, size - (top - phys_addr), type, attribute);
- }
-
- if (!(attribute & EFI_MEMORY_WB))
- efi_memory_uc((u64)(unsigned long)__va(phys_addr), size);
-
- return (void __iomem *)__va(phys_addr);
-}
-
void __init parse_efi_setup(u64 phys_addr, u32 data_len)
{
efi_setup = phys_addr + sizeof(struct setup_data);
@@ -559,7 +416,7 @@ void __init efi_runtime_update_mappings(void)
{
efi_memory_desc_t *md;
- if (efi_enabled(EFI_OLD_MEMMAP)) {
+ if (efi_have_uv1_memmap()) {
if (__supported_pte_mask & _PAGE_NX)
runtime_code_page_mkexec();
return;
@@ -613,7 +470,7 @@ void __init efi_runtime_update_mappings(void)
void __init efi_dump_pagetable(void)
{
#ifdef CONFIG_EFI_PGT_DUMP
- if (efi_enabled(EFI_OLD_MEMMAP))
+ if (efi_have_uv1_memmap())
ptdump_walk_pgd_level(NULL, swapper_pg_dir);
else
ptdump_walk_pgd_level(NULL, efi_mm.pgd);
@@ -634,63 +491,74 @@ void efi_switch_mm(struct mm_struct *mm)
switch_mm(efi_scratch.prev_mm, mm, NULL);
}
-#ifdef CONFIG_EFI_MIXED
-extern efi_status_t efi64_thunk(u32, ...);
-
static DEFINE_SPINLOCK(efi_runtime_lock);
-#define runtime_service32(func) \
-({ \
- u32 table = (u32)(unsigned long)efi.systab; \
- u32 *rt, *___f; \
- \
- rt = (u32 *)(table + offsetof(efi_system_table_32_t, runtime)); \
- ___f = (u32 *)(*rt + offsetof(efi_runtime_services_32_t, func)); \
- *___f; \
+/*
+ * DS and ES contain user values. We need to save them.
+ * The 32-bit EFI code needs a valid DS, ES, and SS. There's no
+ * need to save the old SS: __KERNEL_DS is always acceptable.
+ */
+#define __efi_thunk(func, ...) \
+({ \
+ efi_runtime_services_32_t *__rt; \
+ unsigned short __ds, __es; \
+ efi_status_t ____s; \
+ \
+ __rt = (void *)(unsigned long)efi.systab->mixed_mode.runtime; \
+ \
+ savesegment(ds, __ds); \
+ savesegment(es, __es); \
+ \
+ loadsegment(ss, __KERNEL_DS); \
+ loadsegment(ds, __KERNEL_DS); \
+ loadsegment(es, __KERNEL_DS); \
+ \
+ ____s = efi64_thunk(__rt->func, __VA_ARGS__); \
+ \
+ loadsegment(ds, __ds); \
+ loadsegment(es, __es); \
+ \
+ ____s ^= (____s & BIT(31)) | (____s & BIT_ULL(31)) << 32; \
+ ____s; \
})
/*
* Switch to the EFI page tables early so that we can access the 1:1
* runtime services mappings which are not mapped in any other page
- * tables. This function must be called before runtime_service32().
+ * tables.
*
* Also, disable interrupts because the IDT points to 64-bit handlers,
* which aren't going to function correctly when we switch to 32-bit.
*/
-#define efi_thunk(f, ...) \
+#define efi_thunk(func...) \
({ \
efi_status_t __s; \
- u32 __func; \
\
arch_efi_call_virt_setup(); \
\
- __func = runtime_service32(f); \
- __s = efi64_thunk(__func, __VA_ARGS__); \
+ __s = __efi_thunk(func); \
\
arch_efi_call_virt_teardown(); \
\
__s; \
})
-efi_status_t efi_thunk_set_virtual_address_map(
- void *phys_set_virtual_address_map,
- unsigned long memory_map_size,
- unsigned long descriptor_size,
- u32 descriptor_version,
- efi_memory_desc_t *virtual_map)
+static efi_status_t __init __no_sanitize_address
+efi_thunk_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map)
{
efi_status_t status;
unsigned long flags;
- u32 func;
efi_sync_low_kernel_mappings();
local_irq_save(flags);
efi_switch_mm(&efi_mm);
- func = (u32)(unsigned long)phys_set_virtual_address_map;
- status = efi64_thunk(func, memory_map_size, descriptor_size,
- descriptor_version, virtual_map);
+ status = __efi_thunk(set_virtual_address_map, memory_map_size,
+ descriptor_size, descriptor_version, virtual_map);
efi_switch_mm(efi_scratch.prev_mm);
local_irq_restore(flags);
@@ -993,8 +861,11 @@ efi_thunk_query_capsule_caps(efi_capsule_header_t **capsules,
return EFI_UNSUPPORTED;
}
-void efi_thunk_runtime_setup(void)
+void __init efi_thunk_runtime_setup(void)
{
+ if (!IS_ENABLED(CONFIG_EFI_MIXED))
+ return;
+
efi.get_time = efi_thunk_get_time;
efi.set_time = efi_thunk_set_time;
efi.get_wakeup_time = efi_thunk_get_wakeup_time;
@@ -1010,4 +881,46 @@ void efi_thunk_runtime_setup(void)
efi.update_capsule = efi_thunk_update_capsule;
efi.query_capsule_caps = efi_thunk_query_capsule_caps;
}
-#endif /* CONFIG_EFI_MIXED */
+
+efi_status_t __init __no_sanitize_address
+efi_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map)
+{
+ efi_status_t status;
+ unsigned long flags;
+ pgd_t *save_pgd = NULL;
+
+ if (efi_is_mixed())
+ return efi_thunk_set_virtual_address_map(memory_map_size,
+ descriptor_size,
+ descriptor_version,
+ virtual_map);
+
+ if (efi_have_uv1_memmap()) {
+ save_pgd = efi_uv1_memmap_phys_prolog();
+ if (!save_pgd)
+ return EFI_ABORTED;
+ } else {
+ efi_switch_mm(&efi_mm);
+ }
+
+ kernel_fpu_begin();
+
+ /* Disable interrupts around EFI calls: */
+ local_irq_save(flags);
+ status = efi_call(efi.systab->runtime->set_virtual_address_map,
+ memory_map_size, descriptor_size,
+ descriptor_version, virtual_map);
+ local_irq_restore(flags);
+
+ kernel_fpu_end();
+
+ if (save_pgd)
+ efi_uv1_memmap_phys_epilog(save_pgd);
+ else
+ efi_switch_mm(efi_scratch.prev_mm);
+
+ return status;
+}
diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
index eed8b5b441f8..75c46e7a809f 100644
--- a/arch/x86/platform/efi/efi_stub_32.S
+++ b/arch/x86/platform/efi/efi_stub_32.S
@@ -7,118 +7,43 @@
*/
#include <linux/linkage.h>
+#include <linux/init.h>
#include <asm/page_types.h>
-/*
- * efi_call_phys(void *, ...) is a function with variable parameters.
- * All the callers of this function assure that all the parameters are 4-bytes.
- */
-
-/*
- * In gcc calling convention, EBX, ESP, EBP, ESI and EDI are all callee save.
- * So we'd better save all of them at the beginning of this function and restore
- * at the end no matter how many we use, because we can not assure EFI runtime
- * service functions will comply with gcc calling convention, too.
- */
+ __INIT
+SYM_FUNC_START(efi_call_svam)
+ push 8(%esp)
+ push 8(%esp)
+ push %ecx
+ push %edx
-.text
-SYM_FUNC_START(efi_call_phys)
/*
- * 0. The function can only be called in Linux kernel. So CS has been
- * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
- * the values of these registers are the same. And, the corresponding
- * GDT entries are identical. So I will do nothing about segment reg
- * and GDT, but change GDT base register in prolog and epilog.
- */
-
- /*
- * 1. Now I am running with EIP = <physical address> + PAGE_OFFSET.
- * But to make it smoothly switch from virtual mode to flat mode.
- * The mapping of lower virtual memory has been created in prolog and
- * epilog.
+ * Switch to the flat mapped alias of this routine, by jumping to the
+ * address of label '1' after subtracting PAGE_OFFSET from it.
*/
movl $1f, %edx
subl $__PAGE_OFFSET, %edx
jmp *%edx
1:
- /*
- * 2. Now on the top of stack is the return
- * address in the caller of efi_call_phys(), then parameter 1,
- * parameter 2, ..., param n. To make things easy, we save the return
- * address of efi_call_phys in a global variable.
- */
- popl %edx
- movl %edx, saved_return_addr
- /* get the function pointer into ECX*/
- popl %ecx
- movl %ecx, efi_rt_function_ptr
- movl $2f, %edx
- subl $__PAGE_OFFSET, %edx
- pushl %edx
-
- /*
- * 3. Clear PG bit in %CR0.
- */
+ /* disable paging */
movl %cr0, %edx
andl $0x7fffffff, %edx
movl %edx, %cr0
- jmp 1f
-1:
- /*
- * 4. Adjust stack pointer.
- */
+ /* convert the stack pointer to a flat mapped address */
subl $__PAGE_OFFSET, %esp
- /*
- * 5. Call the physical function.
- */
- jmp *%ecx
+ /* call the EFI routine */
+ call *(%eax)
-2:
- /*
- * 6. After EFI runtime service returns, control will return to
- * following instruction. We'd better readjust stack pointer first.
- */
- addl $__PAGE_OFFSET, %esp
+ /* convert ESP back to a kernel VA, and pop the outgoing args */
+ addl $__PAGE_OFFSET + 16, %esp
- /*
- * 7. Restore PG bit
- */
+ /* re-enable paging */
movl %cr0, %edx
orl $0x80000000, %edx
movl %edx, %cr0
- jmp 1f
-1:
- /*
- * 8. Now restore the virtual mode from flat mode by
- * adding EIP with PAGE_OFFSET.
- */
- movl $1f, %edx
- jmp *%edx
-1:
-
- /*
- * 9. Balance the stack. And because EAX contain the return value,
- * we'd better not clobber it.
- */
- leal efi_rt_function_ptr, %edx
- movl (%edx), %ecx
- pushl %ecx
- /*
- * 10. Push the saved return address onto the stack and return.
- */
- leal saved_return_addr, %edx
- movl (%edx), %ecx
- pushl %ecx
ret
-SYM_FUNC_END(efi_call_phys)
-.previous
-
-.data
-saved_return_addr:
- .long 0
-efi_rt_function_ptr:
- .long 0
+SYM_FUNC_END(efi_call_svam)
diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
index b1d2313fe3bf..15da118f04f0 100644
--- a/arch/x86/platform/efi/efi_stub_64.S
+++ b/arch/x86/platform/efi/efi_stub_64.S
@@ -8,41 +8,12 @@
*/
#include <linux/linkage.h>
-#include <asm/segment.h>
-#include <asm/msr.h>
-#include <asm/processor-flags.h>
-#include <asm/page_types.h>
+#include <asm/nospec-branch.h>
-#define SAVE_XMM \
- mov %rsp, %rax; \
- subq $0x70, %rsp; \
- and $~0xf, %rsp; \
- mov %rax, (%rsp); \
- mov %cr0, %rax; \
- clts; \
- mov %rax, 0x8(%rsp); \
- movaps %xmm0, 0x60(%rsp); \
- movaps %xmm1, 0x50(%rsp); \
- movaps %xmm2, 0x40(%rsp); \
- movaps %xmm3, 0x30(%rsp); \
- movaps %xmm4, 0x20(%rsp); \
- movaps %xmm5, 0x10(%rsp)
-
-#define RESTORE_XMM \
- movaps 0x60(%rsp), %xmm0; \
- movaps 0x50(%rsp), %xmm1; \
- movaps 0x40(%rsp), %xmm2; \
- movaps 0x30(%rsp), %xmm3; \
- movaps 0x20(%rsp), %xmm4; \
- movaps 0x10(%rsp), %xmm5; \
- mov 0x8(%rsp), %rsi; \
- mov %rsi, %cr0; \
- mov (%rsp), %rsp
-
-SYM_FUNC_START(efi_call)
+SYM_FUNC_START(__efi_call)
pushq %rbp
movq %rsp, %rbp
- SAVE_XMM
+ and $~0xf, %rsp
mov 16(%rbp), %rax
subq $48, %rsp
mov %r9, 32(%rsp)
@@ -50,9 +21,7 @@ SYM_FUNC_START(efi_call)
mov %r8, %r9
mov %rcx, %r8
mov %rsi, %rcx
- call *%rdi
- addq $48, %rsp
- RESTORE_XMM
- popq %rbp
+ CALL_NOSPEC %rdi
+ leave
ret
-SYM_FUNC_END(efi_call)
+SYM_FUNC_END(__efi_call)
diff --git a/arch/x86/platform/efi/efi_thunk_64.S b/arch/x86/platform/efi/efi_thunk_64.S
index 3189f1394701..26f0da238c1c 100644
--- a/arch/x86/platform/efi/efi_thunk_64.S
+++ b/arch/x86/platform/efi/efi_thunk_64.S
@@ -25,15 +25,16 @@
.text
.code64
-SYM_FUNC_START(efi64_thunk)
+SYM_CODE_START(__efi64_thunk)
push %rbp
push %rbx
/*
* Switch to 1:1 mapped 32-bit stack pointer.
*/
- movq %rsp, efi_saved_sp(%rip)
+ movq %rsp, %rax
movq efi_scratch(%rip), %rsp
+ push %rax
/*
* Calculate the physical address of the kernel text.
@@ -41,113 +42,31 @@ SYM_FUNC_START(efi64_thunk)
movq $__START_KERNEL_map, %rax
subq phys_base(%rip), %rax
- /*
- * Push some physical addresses onto the stack. This is easier
- * to do now in a code64 section while the assembler can address
- * 64-bit values. Note that all the addresses on the stack are
- * 32-bit.
- */
- subq $16, %rsp
- leaq efi_exit32(%rip), %rbx
- subq %rax, %rbx
- movl %ebx, 8(%rsp)
-
- leaq __efi64_thunk(%rip), %rbx
+ leaq 1f(%rip), %rbp
+ leaq 2f(%rip), %rbx
+ subq %rax, %rbp
subq %rax, %rbx
- call *%rbx
-
- movq efi_saved_sp(%rip), %rsp
- pop %rbx
- pop %rbp
- retq
-SYM_FUNC_END(efi64_thunk)
-/*
- * We run this function from the 1:1 mapping.
- *
- * This function must be invoked with a 1:1 mapped stack.
- */
-SYM_FUNC_START_LOCAL(__efi64_thunk)
- movl %ds, %eax
- push %rax
- movl %es, %eax
- push %rax
- movl %ss, %eax
- push %rax
-
- subq $32, %rsp
- movl %esi, 0x0(%rsp)
- movl %edx, 0x4(%rsp)
- movl %ecx, 0x8(%rsp)
- movq %r8, %rsi
- movl %esi, 0xc(%rsp)
- movq %r9, %rsi
- movl %esi, 0x10(%rsp)
-
- leaq 1f(%rip), %rbx
- movq %rbx, func_rt_ptr(%rip)
+ subq $28, %rsp
+ movl %ebx, 0x0(%rsp) /* return address */
+ movl %esi, 0x4(%rsp)
+ movl %edx, 0x8(%rsp)
+ movl %ecx, 0xc(%rsp)
+ movl %r8d, 0x10(%rsp)
+ movl %r9d, 0x14(%rsp)
/* Switch to 32-bit descriptor */
pushq $__KERNEL32_CS
- leaq efi_enter32(%rip), %rax
- pushq %rax
+ pushq %rdi /* EFI runtime service address */
lretq
-1: addq $32, %rsp
-
+1: movq 24(%rsp), %rsp
pop %rbx
- movl %ebx, %ss
- pop %rbx
- movl %ebx, %es
- pop %rbx
- movl %ebx, %ds
-
- /*
- * Convert 32-bit status code into 64-bit.
- */
- test %rax, %rax
- jz 1f
- movl %eax, %ecx
- andl $0x0fffffff, %ecx
- andl $0xf0000000, %eax
- shl $32, %rax
- or %rcx, %rax
-1:
- ret
-SYM_FUNC_END(__efi64_thunk)
-
-SYM_FUNC_START_LOCAL(efi_exit32)
- movq func_rt_ptr(%rip), %rax
- push %rax
- mov %rdi, %rax
- ret
-SYM_FUNC_END(efi_exit32)
+ pop %rbp
+ retq
.code32
-/*
- * EFI service pointer must be in %edi.
- *
- * The stack should represent the 32-bit calling convention.
- */
-SYM_FUNC_START_LOCAL(efi_enter32)
- movl $__KERNEL_DS, %eax
- movl %eax, %ds
- movl %eax, %es
- movl %eax, %ss
-
- call *%edi
-
- /* We must preserve return value */
- movl %eax, %edi
-
- movl 72(%esp), %eax
- pushl $__KERNEL_CS
- pushl %eax
-
+2: pushl $__KERNEL_CS
+ pushl %ebp
lret
-SYM_FUNC_END(efi_enter32)
-
- .data
- .balign 8
-func_rt_ptr: .quad 0
-efi_saved_sp: .quad 0
+SYM_CODE_END(__efi64_thunk)
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 7675cf754d90..88d32c06cffa 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -16,6 +16,7 @@
#include <asm/efi.h>
#include <asm/uv/uv.h>
#include <asm/cpu_device_id.h>
+#include <asm/realmode.h>
#include <asm/reboot.h>
#define EFI_MIN_RESERVE 5120
@@ -243,7 +244,7 @@ EXPORT_SYMBOL_GPL(efi_query_variable_store);
*/
void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
{
- phys_addr_t new_phys, new_size;
+ struct efi_memory_map_data data = { 0 };
struct efi_mem_range mr;
efi_memory_desc_t md;
int num_entries;
@@ -260,10 +261,6 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
return;
}
- /* No need to reserve regions that will never be freed. */
- if (md.attribute & EFI_MEMORY_RUNTIME)
- return;
-
size += addr % EFI_PAGE_SIZE;
size = round_up(size, EFI_PAGE_SIZE);
addr = round_down(addr, EFI_PAGE_SIZE);
@@ -275,24 +272,23 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
num_entries = efi_memmap_split_count(&md, &mr.range);
num_entries += efi.memmap.nr_map;
- new_size = efi.memmap.desc_size * num_entries;
-
- new_phys = efi_memmap_alloc(num_entries);
- if (!new_phys) {
+ if (efi_memmap_alloc(num_entries, &data) != 0) {
pr_err("Could not allocate boot services memmap\n");
return;
}
- new = early_memremap(new_phys, new_size);
+ new = early_memremap(data.phys_map, data.size);
if (!new) {
pr_err("Failed to map new boot services memmap\n");
return;
}
efi_memmap_insert(&efi.memmap, new, &mr);
- early_memunmap(new, new_size);
+ early_memunmap(new, data.size);
- efi_memmap_install(new_phys, num_entries);
+ efi_memmap_install(&data);
+ e820__range_update(addr, size, E820_TYPE_RAM, E820_TYPE_RESERVED);
+ e820__update_table(e820_table);
}
/*
@@ -386,10 +382,10 @@ static void __init efi_unmap_pages(efi_memory_desc_t *md)
/*
* To Do: Remove this check after adding functionality to unmap EFI boot
- * services code/data regions from direct mapping area because
- * "efi=old_map" maps EFI regions in swapper_pg_dir.
+ * services code/data regions from direct mapping area because the UV1
+ * memory map maps EFI regions in swapper_pg_dir.
*/
- if (efi_enabled(EFI_OLD_MEMMAP))
+ if (efi_have_uv1_memmap())
return;
/*
@@ -397,7 +393,7 @@ static void __init efi_unmap_pages(efi_memory_desc_t *md)
* EFI runtime calls, hence don't unmap EFI boot services code/data
* regions.
*/
- if (!efi_is_native())
+ if (efi_is_mixed())
return;
if (kernel_unmap_pages_in_pgd(pgd, pa, md->num_pages))
@@ -409,7 +405,7 @@ static void __init efi_unmap_pages(efi_memory_desc_t *md)
void __init efi_free_boot_services(void)
{
- phys_addr_t new_phys, new_size;
+ struct efi_memory_map_data data = { 0 };
efi_memory_desc_t *md;
int num_entries = 0;
void *new, *new_md;
@@ -464,14 +460,12 @@ void __init efi_free_boot_services(void)
if (!num_entries)
return;
- new_size = efi.memmap.desc_size * num_entries;
- new_phys = efi_memmap_alloc(num_entries);
- if (!new_phys) {
+ if (efi_memmap_alloc(num_entries, &data) != 0) {
pr_err("Failed to allocate new EFI memmap\n");
return;
}
- new = memremap(new_phys, new_size, MEMREMAP_WB);
+ new = memremap(data.phys_map, data.size, MEMREMAP_WB);
if (!new) {
pr_err("Failed to map new EFI memmap\n");
return;
@@ -495,7 +489,7 @@ void __init efi_free_boot_services(void)
memunmap(new);
- if (efi_memmap_install(new_phys, num_entries)) {
+ if (efi_memmap_install(&data) != 0) {
pr_err("Could not install new EFI memmap\n");
return;
}
@@ -560,7 +554,7 @@ out:
return ret;
}
-static const struct dmi_system_id sgi_uv1_dmi[] = {
+static const struct dmi_system_id sgi_uv1_dmi[] __initconst = {
{ NULL, "SGI UV1",
{ DMI_MATCH(DMI_PRODUCT_NAME, "Stoutland Platform"),
DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"),
@@ -583,8 +577,15 @@ void __init efi_apply_memmap_quirks(void)
}
/* UV2+ BIOS has a fix for this issue. UV1 still needs the quirk. */
- if (dmi_check_system(sgi_uv1_dmi))
- set_bit(EFI_OLD_MEMMAP, &efi.flags);
+ if (dmi_check_system(sgi_uv1_dmi)) {
+ if (IS_ENABLED(CONFIG_X86_UV)) {
+ set_bit(EFI_UV1_MEMMAP, &efi.flags);
+ } else {
+ pr_warn("EFI runtime disabled, needs CONFIG_X86_UV=y on UV1\n");
+ clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
+ efi_memmap_unmap();
+ }
+ }
}
/*
@@ -722,7 +723,7 @@ void efi_recover_from_page_fault(unsigned long phys_addr)
/*
* Make sure that an efi runtime service caused the page fault.
* "efi_mm" cannot be used to check if the page fault had occurred
- * in the firmware context because efi=old_map doesn't use efi_pgd.
+ * in the firmware context because the UV1 memmap doesn't use efi_pgd.
*/
if (efi_rts_work.efi_rts_id == EFI_NONE)
return;
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
index 44d1f884c3d3..139738bbdd36 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
@@ -6,21 +6,31 @@
* Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
*/
-#include <linux/gpio.h>
-#include <linux/platform_data/tc35876x.h>
+#include <linux/gpio/machine.h>
#include <asm/intel-mid.h>
+static struct gpiod_lookup_table tc35876x_gpio_table = {
+ .dev_id = "i2c_disp_brig",
+ .table = {
+ GPIO_LOOKUP("0000:00:0c.0", -1, "bridge-reset", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("0000:00:0c.0", -1, "bl-en", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("0000:00:0c.0", -1, "vadd", GPIO_ACTIVE_HIGH),
+ { },
+ },
+};
+
/*tc35876x DSI_LVDS bridge chip and panel platform data*/
static void *tc35876x_platform_data(void *data)
{
- static struct tc35876x_platform_data pdata;
+ struct gpiod_lookup_table *table = &tc35876x_gpio_table;
+ struct gpiod_lookup *lookup = table->table;
- /* gpio pins set to -1 will not be used by the driver */
- pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
- pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
- pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+ lookup[0].chip_hwnum = get_gpio_by_name("LCMB_RXEN");
+ lookup[1].chip_hwnum = get_gpio_by_name("6S6P_BL_EN");
+ lookup[2].chip_hwnum = get_gpio_by_name("EN_VREG_LCD_V3P3");
+ gpiod_add_lookup_table(table);
- return &pdata;
+ return NULL;
}
static const struct devs_id tc35876x_dev_id __initconst = {
diff --git a/arch/x86/platform/intel-quark/imr.c b/arch/x86/platform/intel-quark/imr.c
index 6dd25dc5f027..e9d97d52475e 100644
--- a/arch/x86/platform/intel-quark/imr.c
+++ b/arch/x86/platform/intel-quark/imr.c
@@ -29,6 +29,8 @@
#include <asm/cpu_device_id.h>
#include <asm/imr.h>
#include <asm/iosf_mbi.h>
+#include <asm/io.h>
+
#include <linux/debugfs.h>
#include <linux/init.h>
#include <linux/mm.h>
diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c
index 42f879b75f9b..4307830e1b6f 100644
--- a/arch/x86/platform/intel-quark/imr_selftest.c
+++ b/arch/x86/platform/intel-quark/imr_selftest.c
@@ -14,6 +14,8 @@
#include <asm-generic/sections.h>
#include <asm/cpu_device_id.h>
#include <asm/imr.h>
+#include <asm/io.h>
+
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/types.h>
diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c
index ece9cb9c1189..607f58147311 100644
--- a/arch/x86/platform/uv/bios_uv.c
+++ b/arch/x86/platform/uv/bios_uv.c
@@ -31,13 +31,16 @@ static s64 __uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3,
return BIOS_STATUS_UNIMPLEMENTED;
/*
- * If EFI_OLD_MEMMAP is set, we need to fall back to using our old EFI
+ * If EFI_UV1_MEMMAP is set, we need to fall back to using our old EFI
* callback method, which uses efi_call() directly, with the kernel page tables:
*/
- if (unlikely(efi_enabled(EFI_OLD_MEMMAP)))
+ if (unlikely(efi_enabled(EFI_UV1_MEMMAP))) {
+ kernel_fpu_begin();
ret = efi_call((void *)__va(tab->function), (u64)which, a1, a2, a3, a4, a5);
- else
+ kernel_fpu_end();
+ } else {
ret = efi_call_virt_pointer(tab, function, (u64)which, a1, a2, a3, a4, a5);
+ }
return ret;
}
@@ -214,3 +217,163 @@ int uv_bios_init(void)
pr_info("UV: UVsystab: Revision:%x\n", uv_systab->revision);
return 0;
}
+
+static void __init early_code_mapping_set_exec(int executable)
+{
+ efi_memory_desc_t *md;
+
+ if (!(__supported_pte_mask & _PAGE_NX))
+ return;
+
+ /* Make EFI service code area executable */
+ for_each_efi_memory_desc(md) {
+ if (md->type == EFI_RUNTIME_SERVICES_CODE ||
+ md->type == EFI_BOOT_SERVICES_CODE)
+ efi_set_executable(md, executable);
+ }
+}
+
+void __init efi_uv1_memmap_phys_epilog(pgd_t *save_pgd)
+{
+ /*
+ * After the lock is released, the original page table is restored.
+ */
+ int pgd_idx, i;
+ int nr_pgds;
+ pgd_t *pgd;
+ p4d_t *p4d;
+ pud_t *pud;
+
+ nr_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT) , PGDIR_SIZE);
+
+ for (pgd_idx = 0; pgd_idx < nr_pgds; pgd_idx++) {
+ pgd = pgd_offset_k(pgd_idx * PGDIR_SIZE);
+ set_pgd(pgd_offset_k(pgd_idx * PGDIR_SIZE), save_pgd[pgd_idx]);
+
+ if (!pgd_present(*pgd))
+ continue;
+
+ for (i = 0; i < PTRS_PER_P4D; i++) {
+ p4d = p4d_offset(pgd,
+ pgd_idx * PGDIR_SIZE + i * P4D_SIZE);
+
+ if (!p4d_present(*p4d))
+ continue;
+
+ pud = (pud_t *)p4d_page_vaddr(*p4d);
+ pud_free(&init_mm, pud);
+ }
+
+ p4d = (p4d_t *)pgd_page_vaddr(*pgd);
+ p4d_free(&init_mm, p4d);
+ }
+
+ kfree(save_pgd);
+
+ __flush_tlb_all();
+ early_code_mapping_set_exec(0);
+}
+
+pgd_t * __init efi_uv1_memmap_phys_prolog(void)
+{
+ unsigned long vaddr, addr_pgd, addr_p4d, addr_pud;
+ pgd_t *save_pgd, *pgd_k, *pgd_efi;
+ p4d_t *p4d, *p4d_k, *p4d_efi;
+ pud_t *pud;
+
+ int pgd;
+ int n_pgds, i, j;
+
+ early_code_mapping_set_exec(1);
+
+ n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
+ save_pgd = kmalloc_array(n_pgds, sizeof(*save_pgd), GFP_KERNEL);
+ if (!save_pgd)
+ return NULL;
+
+ /*
+ * Build 1:1 identity mapping for UV1 memmap usage. Note that
+ * PAGE_OFFSET is PGDIR_SIZE aligned when KASLR is disabled, while
+ * it is PUD_SIZE ALIGNED with KASLR enabled. So for a given physical
+ * address X, the pud_index(X) != pud_index(__va(X)), we can only copy
+ * PUD entry of __va(X) to fill in pud entry of X to build 1:1 mapping.
+ * This means here we can only reuse the PMD tables of the direct mapping.
+ */
+ for (pgd = 0; pgd < n_pgds; pgd++) {
+ addr_pgd = (unsigned long)(pgd * PGDIR_SIZE);
+ vaddr = (unsigned long)__va(pgd * PGDIR_SIZE);
+ pgd_efi = pgd_offset_k(addr_pgd);
+ save_pgd[pgd] = *pgd_efi;
+
+ p4d = p4d_alloc(&init_mm, pgd_efi, addr_pgd);
+ if (!p4d) {
+ pr_err("Failed to allocate p4d table!\n");
+ goto out;
+ }
+
+ for (i = 0; i < PTRS_PER_P4D; i++) {
+ addr_p4d = addr_pgd + i * P4D_SIZE;
+ p4d_efi = p4d + p4d_index(addr_p4d);
+
+ pud = pud_alloc(&init_mm, p4d_efi, addr_p4d);
+ if (!pud) {
+ pr_err("Failed to allocate pud table!\n");
+ goto out;
+ }
+
+ for (j = 0; j < PTRS_PER_PUD; j++) {
+ addr_pud = addr_p4d + j * PUD_SIZE;
+
+ if (addr_pud > (max_pfn << PAGE_SHIFT))
+ break;
+
+ vaddr = (unsigned long)__va(addr_pud);
+
+ pgd_k = pgd_offset_k(vaddr);
+ p4d_k = p4d_offset(pgd_k, vaddr);
+ pud[j] = *pud_offset(p4d_k, vaddr);
+ }
+ }
+ pgd_offset_k(pgd * PGDIR_SIZE)->pgd &= ~_PAGE_NX;
+ }
+
+ __flush_tlb_all();
+ return save_pgd;
+out:
+ efi_uv1_memmap_phys_epilog(save_pgd);
+ return NULL;
+}
+
+void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size,
+ u32 type, u64 attribute)
+{
+ unsigned long last_map_pfn;
+
+ if (type == EFI_MEMORY_MAPPED_IO)
+ return ioremap(phys_addr, size);
+
+ last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size);
+ if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) {
+ unsigned long top = last_map_pfn << PAGE_SHIFT;
+ efi_ioremap(top, size - (top - phys_addr), type, attribute);
+ }
+
+ if (!(attribute & EFI_MEMORY_WB))
+ efi_memory_uc((u64)(unsigned long)__va(phys_addr), size);
+
+ return (void __iomem *)__va(phys_addr);
+}
+
+static int __init arch_parse_efi_cmdline(char *str)
+{
+ if (!str) {
+ pr_warn("need at least one option\n");
+ return -EINVAL;
+ }
+
+ if (!efi_is_mixed() && parse_option_str(str, "old_map"))
+ set_bit(EFI_UV1_MEMMAP, &efi.flags);
+
+ return 0;
+}
+early_param("efi", arch_parse_efi_cmdline);
diff --git a/arch/x86/um/tls_32.c b/arch/x86/um/tls_32.c
index 5bd949da7a4a..ac8eee093f9c 100644
--- a/arch/x86/um/tls_32.c
+++ b/arch/x86/um/tls_32.c
@@ -215,14 +215,12 @@ static int set_tls_entry(struct task_struct* task, struct user_desc *info,
return 0;
}
-int arch_copy_tls(struct task_struct *new)
+int arch_set_tls(struct task_struct *new, unsigned long tls)
{
struct user_desc info;
int idx, ret = -EFAULT;
- if (copy_from_user(&info,
- (void __user *) UPT_SI(&new->thread.regs.regs),
- sizeof(info)))
+ if (copy_from_user(&info, (void __user *) tls, sizeof(info)))
goto out;
ret = -EINVAL;
diff --git a/arch/x86/um/tls_64.c b/arch/x86/um/tls_64.c
index 3a621e0d3925..ebd3855d9b13 100644
--- a/arch/x86/um/tls_64.c
+++ b/arch/x86/um/tls_64.c
@@ -6,14 +6,13 @@ void clear_flushed_tls(struct task_struct *task)
{
}
-int arch_copy_tls(struct task_struct *t)
+int arch_set_tls(struct task_struct *t, unsigned long tls)
{
/*
* If CLONE_SETTLS is set, we need to save the thread id
- * (which is argument 5, child_tid, of clone) so it can be set
- * during context switches.
+ * so it can be set during context switches.
*/
- t->thread.arch.fs = t->thread.regs.regs.gp[R8 / sizeof(long)];
+ t->thread.arch.fs = tls;
return 0;
}
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index ba5a41828e9d..1aded63a95cb 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -62,10 +62,10 @@ config XEN_512GB
boot parameter "xen_512gb_limit".
config XEN_SAVE_RESTORE
- bool
- depends on XEN
- select HIBERNATE_CALLBACKS
- default y
+ bool
+ depends on XEN
+ select HIBERNATE_CALLBACKS
+ default y
config XEN_DEBUG_FS
bool "Enable Xen debug and tuning parameters in debugfs"
diff --git a/arch/x86/xen/efi.c b/arch/x86/xen/efi.c
index a04551ee5568..1abe455d926a 100644
--- a/arch/x86/xen/efi.c
+++ b/arch/x86/xen/efi.c
@@ -31,7 +31,7 @@ static efi_system_table_t efi_systab_xen __initdata = {
.con_in_handle = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
.con_in = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
.con_out_handle = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
- .con_out = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
+ .con_out = NULL, /* Not used under Xen. */
.stderr_handle = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
.stderr = EFI_INVALID_TABLE_ADDR, /* Not used under Xen. */
.runtime = (efi_runtime_services_t *)EFI_INVALID_TABLE_ADDR,
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index c8dbee62ec2a..bbba8b17829a 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -67,7 +67,7 @@
#include <asm/linkage.h>
#include <asm/page.h>
#include <asm/init.h>
-#include <asm/pat.h>
+#include <asm/memtype.h>
#include <asm/smp.h>
#include <asm/tlb.h>
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 4a3fa295d8fe..1c645172b4b5 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -11,7 +11,7 @@ config XTENSA
select ARCH_USE_QUEUED_SPINLOCKS
select ARCH_WANT_FRAME_POINTERS
select ARCH_WANT_IPC_PARSE_VERSION
- select BUILDTIME_EXTABLE_SORT
+ select BUILDTIME_TABLE_SORT
select CLONE_BACKWARDS
select COMMON_CLK
select DMA_REMAP if MMU
@@ -24,6 +24,7 @@ config XTENSA
select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
select HAVE_ARCH_KASAN if MMU && !XIP_KERNEL
select HAVE_ARCH_TRACEHOOK
+ select HAVE_COPY_THREAD_TLS
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
select HAVE_EXIT_THREAD
diff --git a/arch/xtensa/include/asm/vmalloc.h b/arch/xtensa/include/asm/vmalloc.h
new file mode 100644
index 000000000000..0eb94b70be55
--- /dev/null
+++ b/arch/xtensa/include/asm/vmalloc.h
@@ -0,0 +1,4 @@
+#ifndef _ASM_XTENSA_VMALLOC_H
+#define _ASM_XTENSA_VMALLOC_H
+
+#endif /* _ASM_XTENSA_VMALLOC_H */
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index be897803834a..2c9e48566e48 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -520,7 +520,7 @@ common_exception_return:
call4 schedule # void schedule (void)
j 1b
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
6:
_bbci.l a4, TIF_NEED_RESCHED, 4f
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 9e1c49134c07..3edecc41ef8c 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -202,8 +202,9 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
* involved. Much simpler to just not copy those live frames across.
*/
-int copy_thread(unsigned long clone_flags, unsigned long usp_thread_fn,
- unsigned long thread_fn_arg, struct task_struct *p)
+int copy_thread_tls(unsigned long clone_flags, unsigned long usp_thread_fn,
+ unsigned long thread_fn_arg, struct task_struct *p,
+ unsigned long tls)
{
struct pt_regs *childregs = task_pt_regs(p);
@@ -266,9 +267,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp_thread_fn,
childregs->syscall = regs->syscall;
- /* The thread pointer is passed in the '4th argument' (= a5) */
if (clone_flags & CLONE_SETTLS)
- childregs->threadptr = childregs->areg[5];
+ childregs->threadptr = tls;
} else {
p->thread.ra = MAKE_RA_FOR_CALL(
(unsigned long)ret_from_kernel_thread, 1);
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 0f93b67c7a5a..adead45debe8 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -405,8 +405,6 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_VT
# if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
-# elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
# endif
#endif
}
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index 25f4de729a6d..85a9ab1bc04d 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -406,3 +406,5 @@
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
435 common clone3 sys_clone3
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 87bd68dd7687..0976e27b8d5d 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -519,12 +519,15 @@ DEFINE_SPINLOCK(die_lock);
void die(const char * str, struct pt_regs * regs, long err)
{
static int die_counter;
+ const char *pr = "";
+
+ if (IS_ENABLED(CONFIG_PREEMPTION))
+ pr = IS_ENABLED(CONFIG_PREEMPT_RT) ? " PREEMPT_RT" : " PREEMPT";
console_verbose();
spin_lock_irq(&die_lock);
- pr_info("%s: sig: %ld [#%d]%s\n", str, err, ++die_counter,
- IS_ENABLED(CONFIG_PREEMPT) ? " PREEMPT" : "");
+ pr_info("%s: sig: %ld [#%d]%s\n", str, err, ++die_counter, pr);
show_regs(regs);
if (!user_mode(regs))
show_stack(NULL, (unsigned long*)regs->areg[1]);
diff --git a/arch/xtensa/platforms/iss/include/platform/simcall.h b/arch/xtensa/platforms/iss/include/platform/simcall.h
index 2ba45858e50a..4e2a48380dbf 100644
--- a/arch/xtensa/platforms/iss/include/platform/simcall.h
+++ b/arch/xtensa/platforms/iss/include/platform/simcall.h
@@ -113,9 +113,9 @@ static inline int simc_write(int fd, const void *buf, size_t count)
static inline int simc_poll(int fd)
{
- struct timeval tv = { .tv_sec = 0, .tv_usec = 0 };
+ long timeval[2] = { 0, 0 };
- return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&tv);
+ return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&timeval);
}
static inline int simc_lseek(int fd, uint32_t off, int whence)
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index fa9f3893b002..4986226a5ab2 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -455,7 +455,7 @@ static void iss_net_set_multicast_list(struct net_device *dev)
{
}
-static void iss_net_tx_timeout(struct net_device *dev)
+static void iss_net_tx_timeout(struct net_device *dev, unsigned int txqueue)
{
}
diff --git a/block/Kconfig b/block/Kconfig
index c23094a14a2b..3bc76bb113a0 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -66,7 +66,6 @@ config BLK_DEV_BSGLIB
config BLK_DEV_INTEGRITY
bool "Block layer data integrity support"
- select CRC_T10DIF if BLK_DEV_INTEGRITY
---help---
Some storage devices allow extra information to be
stored/retrieved to help protect the data. The block layer
@@ -77,6 +76,11 @@ config BLK_DEV_INTEGRITY
T10/SCSI Data Integrity Field or the T13/ATA External Path
Protection. If in doubt, say N.
+config BLK_DEV_INTEGRITY_T10
+ tristate
+ depends on BLK_DEV_INTEGRITY
+ select CRC_T10DIF
+
config BLK_DEV_ZONED
bool "Zoned block device support"
select MQ_IOSCHED_DEADLINE
diff --git a/block/Makefile b/block/Makefile
index 205a5f2fef17..1a43750f4b01 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -25,9 +25,9 @@ obj-$(CONFIG_MQ_IOSCHED_KYBER) += kyber-iosched.o
bfq-y := bfq-iosched.o bfq-wf2q.o bfq-cgroup.o
obj-$(CONFIG_IOSCHED_BFQ) += bfq.o
-obj-$(CONFIG_BLOCK_COMPAT) += compat_ioctl.o
obj-$(CONFIG_BLK_CMDLINE_PARSER) += cmdline-parser.o
-obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o t10-pi.o
+obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o
+obj-$(CONFIG_BLK_DEV_INTEGRITY_T10) += t10-pi.o
obj-$(CONFIG_BLK_MQ_PCI) += blk-mq-pci.o
obj-$(CONFIG_BLK_MQ_VIRTIO) += blk-mq-virtio.o
obj-$(CONFIG_BLK_MQ_RDMA) += blk-mq-rdma.o
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index ad4af4aaf2ce..4686b68b48b4 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -427,7 +427,6 @@ void bfq_schedule_dispatch(struct bfq_data *bfqd)
}
#define bfq_class_idle(bfqq) ((bfqq)->ioprio_class == IOPRIO_CLASS_IDLE)
-#define bfq_class_rt(bfqq) ((bfqq)->ioprio_class == IOPRIO_CLASS_RT)
#define bfq_sample_valid(samples) ((samples) > 80)
diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c
index 05f0bf4a1144..ffe9ce9faa89 100644
--- a/block/bfq-wf2q.c
+++ b/block/bfq-wf2q.c
@@ -277,10 +277,7 @@ struct bfq_queue *bfq_entity_to_bfqq(struct bfq_entity *entity)
*/
static u64 bfq_delta(unsigned long service, unsigned long weight)
{
- u64 d = (u64)service << WFQ_SERVICE_SHIFT;
-
- do_div(d, weight);
- return d;
+ return div64_ul((u64)service << WFQ_SERVICE_SHIFT, weight);
}
/**
diff --git a/block/bio.c b/block/bio.c
index a5d75f6bf4c7..94d697217887 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -539,6 +539,55 @@ void zero_fill_bio_iter(struct bio *bio, struct bvec_iter start)
EXPORT_SYMBOL(zero_fill_bio_iter);
/**
+ * bio_truncate - truncate the bio to small size of @new_size
+ * @bio: the bio to be truncated
+ * @new_size: new size for truncating the bio
+ *
+ * Description:
+ * Truncate the bio to new size of @new_size. If bio_op(bio) is
+ * REQ_OP_READ, zero the truncated part. This function should only
+ * be used for handling corner cases, such as bio eod.
+ */
+void bio_truncate(struct bio *bio, unsigned new_size)
+{
+ struct bio_vec bv;
+ struct bvec_iter iter;
+ unsigned int done = 0;
+ bool truncated = false;
+
+ if (new_size >= bio->bi_iter.bi_size)
+ return;
+
+ if (bio_op(bio) != REQ_OP_READ)
+ goto exit;
+
+ bio_for_each_segment(bv, bio, iter) {
+ if (done + bv.bv_len > new_size) {
+ unsigned offset;
+
+ if (!truncated)
+ offset = new_size - done;
+ else
+ offset = 0;
+ zero_user(bv.bv_page, offset, bv.bv_len - offset);
+ truncated = true;
+ }
+ done += bv.bv_len;
+ }
+
+ exit:
+ /*
+ * Don't touch bvec table here and make it really immutable, since
+ * fs bio user has to retrieve all pages via bio_for_each_segment_all
+ * in its .end_bio() callback.
+ *
+ * It is enough to truncate bio by updating .bi_size since we can make
+ * correct bvec with the updated .bi_size for drivers.
+ */
+ bio->bi_iter.bi_size = new_size;
+}
+
+/**
* bio_put - release a reference to a bio
* @bio: bio to release reference to
*
diff --git a/block/blk-core.c b/block/blk-core.c
index e0a094fddee5..089e890ab208 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -885,11 +885,14 @@ generic_make_request_checks(struct bio *bio)
}
/*
- * For a REQ_NOWAIT based request, return -EOPNOTSUPP
- * if queue is not a request based queue.
+ * Non-mq queues do not honor REQ_NOWAIT, so complete a bio
+ * with BLK_STS_AGAIN status in order to catch -EAGAIN and
+ * to give a chance to the caller to repeat request gracefully.
*/
- if ((bio->bi_opf & REQ_NOWAIT) && !queue_is_mq(q))
- goto not_supported;
+ if ((bio->bi_opf & REQ_NOWAIT) && !queue_is_mq(q)) {
+ status = BLK_STS_AGAIN;
+ goto end_io;
+ }
if (should_fail_bio(bio))
goto end_io;
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 1777346baf06..3f977c517960 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -69,6 +69,7 @@
#include <linux/blkdev.h>
#include <linux/gfp.h>
#include <linux/blk-mq.h>
+#include <linux/lockdep.h>
#include "blk.h"
#include "blk-mq.h"
@@ -505,6 +506,9 @@ struct blk_flush_queue *blk_alloc_flush_queue(struct request_queue *q,
INIT_LIST_HEAD(&fq->flush_queue[1]);
INIT_LIST_HEAD(&fq->flush_data_in_flight);
+ lockdep_register_key(&fq->key);
+ lockdep_set_class(&fq->mq_flush_lock, &fq->key);
+
return fq;
fail_rq:
@@ -519,6 +523,7 @@ void blk_free_flush_queue(struct blk_flush_queue *fq)
if (!fq)
return;
+ lockdep_unregister_key(&fq->key);
kfree(fq->flush_rq);
kfree(fq);
}
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index e01267f99183..27ca68621137 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -1212,7 +1212,7 @@ static enum hrtimer_restart iocg_waitq_timer_fn(struct hrtimer *timer)
return HRTIMER_NORESTART;
}
-static void iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
+static bool iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
{
struct ioc *ioc = iocg->ioc;
struct blkcg_gq *blkg = iocg_to_blkg(iocg);
@@ -1229,11 +1229,11 @@ static void iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
/* clear or maintain depending on the overage */
if (time_before_eq64(vtime, now->vnow)) {
blkcg_clear_delay(blkg);
- return;
+ return false;
}
if (!atomic_read(&blkg->use_delay) &&
time_before_eq64(vtime, now->vnow + vmargin))
- return;
+ return false;
/* use delay */
if (cost) {
@@ -1250,10 +1250,11 @@ static void iocg_kick_delay(struct ioc_gq *iocg, struct ioc_now *now, u64 cost)
oexpires = ktime_to_ns(hrtimer_get_softexpires(&iocg->delay_timer));
if (hrtimer_is_queued(&iocg->delay_timer) &&
abs(oexpires - expires) <= margin_ns / 4)
- return;
+ return true;
hrtimer_start_range_ns(&iocg->delay_timer, ns_to_ktime(expires),
margin_ns / 4, HRTIMER_MODE_ABS);
+ return true;
}
static enum hrtimer_restart iocg_delay_timer_fn(struct hrtimer *timer)
@@ -1739,7 +1740,9 @@ static void ioc_rqos_throttle(struct rq_qos *rqos, struct bio *bio)
*/
if (bio_issue_as_root_blkg(bio) || fatal_signal_pending(current)) {
atomic64_add(abs_cost, &iocg->abs_vdebt);
- iocg_kick_delay(iocg, &now, cost);
+ if (iocg_kick_delay(iocg, &now, cost))
+ blkcg_schedule_throttle(rqos->q,
+ (bio->bi_opf & REQ_SWAP) == REQ_SWAP);
return;
}
diff --git a/block/blk-map.c b/block/blk-map.c
index 3a62e471d81b..b0790268ed9d 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -151,7 +151,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
return 0;
unmap_rq:
- __blk_rq_unmap_user(bio);
+ blk_rq_unmap_user(bio);
fail:
rq->bio = NULL;
return ret;
diff --git a/block/blk-merge.c b/block/blk-merge.c
index d783bdc4559b..1534ed736363 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -157,17 +157,20 @@ static inline unsigned get_max_io_size(struct request_queue *q,
return sectors & (lbs - 1);
}
-static unsigned get_max_segment_size(const struct request_queue *q,
- unsigned offset)
+static inline unsigned get_max_segment_size(const struct request_queue *q,
+ struct page *start_page,
+ unsigned long offset)
{
unsigned long mask = queue_segment_boundary(q);
- /* default segment boundary mask means no boundary limit */
- if (mask == BLK_SEG_BOUNDARY_MASK)
- return queue_max_segment_size(q);
+ offset = mask & (page_to_phys(start_page) + offset);
- return min_t(unsigned long, mask - (mask & offset) + 1,
- queue_max_segment_size(q));
+ /*
+ * overflow may be triggered in case of zero page physical address
+ * on 32bit arch, use queue's max segment size when that happens.
+ */
+ return min_not_zero(mask - offset + 1,
+ (unsigned long)queue_max_segment_size(q));
}
/**
@@ -201,7 +204,8 @@ static bool bvec_split_segs(const struct request_queue *q,
unsigned seg_size = 0;
while (len && *nsegs < max_segs) {
- seg_size = get_max_segment_size(q, bv->bv_offset + total_len);
+ seg_size = get_max_segment_size(q, bv->bv_page,
+ bv->bv_offset + total_len);
seg_size = min(seg_size, len);
(*nsegs)++;
@@ -419,7 +423,8 @@ static unsigned blk_bvec_map_sg(struct request_queue *q,
while (nbytes > 0) {
unsigned offset = bvec->bv_offset + total;
- unsigned len = min(get_max_segment_size(q, offset), nbytes);
+ unsigned len = min(get_max_segment_size(q, bvec->bv_page,
+ offset), nbytes);
struct page *page = bvec->bv_page;
/*
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 323c9cb28066..a12b1763508d 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -641,6 +641,14 @@ bool blk_mq_complete_request(struct request *rq)
}
EXPORT_SYMBOL(blk_mq_complete_request);
+/**
+ * blk_mq_start_request - Start processing a request
+ * @rq: Pointer to request to be started
+ *
+ * Function used by device drivers to notify the block layer that a request
+ * is going to be processed now, so blk layer can do proper initializations
+ * such as starting the timeout timer.
+ */
void blk_mq_start_request(struct request *rq)
{
struct request_queue *q = rq->q;
@@ -1327,6 +1335,12 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list,
return (queued + errors) != 0;
}
+/**
+ * __blk_mq_run_hw_queue - Run a hardware queue.
+ * @hctx: Pointer to the hardware queue to run.
+ *
+ * Send pending requests to the hardware.
+ */
static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx)
{
int srcu_idx;
@@ -1424,6 +1438,15 @@ select_cpu:
return next_cpu;
}
+/**
+ * __blk_mq_delay_run_hw_queue - Run (or schedule to run) a hardware queue.
+ * @hctx: Pointer to the hardware queue to run.
+ * @async: If we want to run the queue asynchronously.
+ * @msecs: Microseconds of delay to wait before running the queue.
+ *
+ * If !@async, try to run the queue now. Else, run the queue asynchronously and
+ * with a delay of @msecs.
+ */
static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async,
unsigned long msecs)
{
@@ -1445,12 +1468,28 @@ static void __blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async,
msecs_to_jiffies(msecs));
}
+/**
+ * blk_mq_delay_run_hw_queue - Run a hardware queue asynchronously.
+ * @hctx: Pointer to the hardware queue to run.
+ * @msecs: Microseconds of delay to wait before running the queue.
+ *
+ * Run a hardware queue asynchronously with a delay of @msecs.
+ */
void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs)
{
__blk_mq_delay_run_hw_queue(hctx, true, msecs);
}
EXPORT_SYMBOL(blk_mq_delay_run_hw_queue);
+/**
+ * blk_mq_run_hw_queue - Start to run a hardware queue.
+ * @hctx: Pointer to the hardware queue to run.
+ * @async: If we want to run the queue asynchronously.
+ *
+ * Check if the request queue is not in a quiesced state and if there are
+ * pending requests to be sent. If this is true, run the queue to send requests
+ * to hardware.
+ */
void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async)
{
int srcu_idx;
@@ -1474,6 +1513,11 @@ void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async)
}
EXPORT_SYMBOL(blk_mq_run_hw_queue);
+/**
+ * blk_mq_run_hw_queue - Run all hardware queues in a request queue.
+ * @q: Pointer to the request queue to run.
+ * @async: If we want to run the queue asynchronously.
+ */
void blk_mq_run_hw_queues(struct request_queue *q, bool async)
{
struct blk_mq_hw_ctx *hctx;
@@ -1625,7 +1669,11 @@ void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
blk_mq_hctx_mark_pending(hctx, ctx);
}
-/*
+/**
+ * blk_mq_request_bypass_insert - Insert a request at dispatch list.
+ * @rq: Pointer to request to be inserted.
+ * @run_queue: If we should run the hardware queue after inserting the request.
+ *
* Should only be used carefully, when the caller knows we want to
* bypass a potential IO scheduler on the target device.
*/
@@ -1668,28 +1716,20 @@ static int plug_rq_cmp(void *priv, struct list_head *a, struct list_head *b)
struct request *rqa = container_of(a, struct request, queuelist);
struct request *rqb = container_of(b, struct request, queuelist);
- if (rqa->mq_ctx < rqb->mq_ctx)
- return -1;
- else if (rqa->mq_ctx > rqb->mq_ctx)
- return 1;
- else if (rqa->mq_hctx < rqb->mq_hctx)
- return -1;
- else if (rqa->mq_hctx > rqb->mq_hctx)
- return 1;
+ if (rqa->mq_ctx != rqb->mq_ctx)
+ return rqa->mq_ctx > rqb->mq_ctx;
+ if (rqa->mq_hctx != rqb->mq_hctx)
+ return rqa->mq_hctx > rqb->mq_hctx;
return blk_rq_pos(rqa) > blk_rq_pos(rqb);
}
void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule)
{
- struct blk_mq_hw_ctx *this_hctx;
- struct blk_mq_ctx *this_ctx;
- struct request_queue *this_q;
- struct request *rq;
LIST_HEAD(list);
- LIST_HEAD(rq_list);
- unsigned int depth;
+ if (list_empty(&plug->mq_list))
+ return;
list_splice_init(&plug->mq_list, &list);
if (plug->rq_count > 2 && plug->multiple_queues)
@@ -1697,42 +1737,27 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule)
plug->rq_count = 0;
- this_q = NULL;
- this_hctx = NULL;
- this_ctx = NULL;
- depth = 0;
-
- while (!list_empty(&list)) {
- rq = list_entry_rq(list.next);
- list_del_init(&rq->queuelist);
- BUG_ON(!rq->q);
- if (rq->mq_hctx != this_hctx || rq->mq_ctx != this_ctx) {
- if (this_hctx) {
- trace_block_unplug(this_q, depth, !from_schedule);
- blk_mq_sched_insert_requests(this_hctx, this_ctx,
- &rq_list,
- from_schedule);
- }
-
- this_q = rq->q;
- this_ctx = rq->mq_ctx;
- this_hctx = rq->mq_hctx;
- depth = 0;
+ do {
+ struct list_head rq_list;
+ struct request *rq, *head_rq = list_entry_rq(list.next);
+ struct list_head *pos = &head_rq->queuelist; /* skip first */
+ struct blk_mq_hw_ctx *this_hctx = head_rq->mq_hctx;
+ struct blk_mq_ctx *this_ctx = head_rq->mq_ctx;
+ unsigned int depth = 1;
+
+ list_for_each_continue(pos, &list) {
+ rq = list_entry_rq(pos);
+ BUG_ON(!rq->q);
+ if (rq->mq_hctx != this_hctx || rq->mq_ctx != this_ctx)
+ break;
+ depth++;
}
- depth++;
- list_add_tail(&rq->queuelist, &rq_list);
- }
-
- /*
- * If 'this_hctx' is set, we know we have entries to complete
- * on 'rq_list'. Do those.
- */
- if (this_hctx) {
- trace_block_unplug(this_q, depth, !from_schedule);
+ list_cut_before(&rq_list, &list, pos);
+ trace_block_unplug(head_rq->q, depth, !from_schedule);
blk_mq_sched_insert_requests(this_hctx, this_ctx, &rq_list,
from_schedule);
- }
+ } while(!list_empty(&list));
}
static void blk_mq_bio_to_request(struct request *rq, struct bio *bio,
@@ -1828,6 +1853,17 @@ insert:
return BLK_STS_OK;
}
+/**
+ * blk_mq_try_issue_directly - Try to send a request directly to device driver.
+ * @hctx: Pointer of the associated hardware queue.
+ * @rq: Pointer to request to be sent.
+ * @cookie: Request queue cookie.
+ *
+ * If the device has enough resources to accept a new request now, send the
+ * request directly to device driver. Else, insert at hctx->dispatch queue, so
+ * we can try send it another time in the future. Requests inserted at this
+ * queue have higher priority.
+ */
static void blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
struct request *rq, blk_qc_t *cookie)
{
@@ -1905,6 +1941,22 @@ static void blk_add_rq_to_plug(struct blk_plug *plug, struct request *rq)
}
}
+/**
+ * blk_mq_make_request - Create and send a request to block device.
+ * @q: Request queue pointer.
+ * @bio: Bio pointer.
+ *
+ * Builds up a request structure from @q and @bio and send to the device. The
+ * request may not be queued directly to hardware if:
+ * * This request can be merged with another one
+ * * We want to place request at plug queue for possible future merging
+ * * There is an IO scheduler active at this queue
+ *
+ * It will not queue the request if there is an error with the bio, or at the
+ * request creation.
+ *
+ * Returns: Request queue cookie.
+ */
static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
{
const int is_sync = op_is_sync(bio->bi_opf);
@@ -1950,7 +2002,7 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
plug = blk_mq_plug(q, bio);
if (unlikely(is_flush_fua)) {
- /* bypass scheduler for flush rq */
+ /* Bypass scheduler for flush requests */
blk_insert_flush(rq);
blk_mq_run_hw_queue(data.hctx, true);
} else if (plug && (q->nr_hw_queues == 1 || q->mq_ops->commit_rqs ||
@@ -1978,6 +2030,7 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
blk_add_rq_to_plug(plug, rq);
} else if (q->elevator) {
+ /* Insert the request at the IO scheduler queue */
blk_mq_sched_insert_request(rq, false, true, true);
} else if (plug && !blk_queue_nomerges(q)) {
/*
@@ -2004,8 +2057,13 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
}
} else if ((q->nr_hw_queues > 1 && is_sync) ||
!data.hctx->dispatch_busy) {
+ /*
+ * There is no scheduler and we can try to send directly
+ * to the hardware.
+ */
blk_mq_try_issue_directly(data.hctx, rq, &cookie);
} else {
+ /* Default case. */
blk_mq_sched_insert_request(rq, false, true, true);
}
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 5f6dcc7a47bd..c8eda2e7b91e 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -328,7 +328,7 @@ EXPORT_SYMBOL(blk_queue_max_segment_size);
* storage device can address. The default of 512 covers most
* hardware.
**/
-void blk_queue_logical_block_size(struct request_queue *q, unsigned short size)
+void blk_queue_logical_block_size(struct request_queue *q, unsigned int size)
{
q->limits.logical_block_size = size;
diff --git a/block/blk-zoned.c b/block/blk-zoned.c
index d00fcfd71dfe..05741c6f618b 100644
--- a/block/blk-zoned.c
+++ b/block/blk-zoned.c
@@ -198,7 +198,7 @@ int blkdev_zone_mgmt(struct block_device *bdev, enum req_opf op,
break;
}
- bio->bi_opf = op;
+ bio->bi_opf = op | REQ_SYNC;
bio->bi_iter.bi_sector = sector;
sector += zone_sectors;
diff --git a/block/blk.h b/block/blk.h
index 6842f28c033e..0b8884353f6b 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -30,6 +30,7 @@ struct blk_flush_queue {
* at the same time
*/
struct request *orig_rq;
+ struct lock_class_key key;
spinlock_t mq_flush_lock;
};
diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index 347dda16c2f4..6cbb7926534c 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -266,7 +266,7 @@ static blk_status_t bsg_queue_rq(struct blk_mq_hw_ctx *hctx,
struct request *req = bd->rq;
struct bsg_set *bset =
container_of(q->tag_set, struct bsg_set, tag_set);
- int sts = BLK_STS_IOERR;
+ blk_status_t sts = BLK_STS_IOERR;
int ret;
blk_mq_start_request(req);
diff --git a/block/bsg.c b/block/bsg.c
index 833c44b3d458..d7bae94b64d9 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -382,6 +382,7 @@ static const struct file_operations bsg_fops = {
.open = bsg_open,
.release = bsg_release,
.unlocked_ioctl = bsg_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
deleted file mode 100644
index 6ca015f92766..000000000000
--- a/block/compat_ioctl.c
+++ /dev/null
@@ -1,411 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/blkdev.h>
-#include <linux/blkpg.h>
-#include <linux/blktrace_api.h>
-#include <linux/cdrom.h>
-#include <linux/compat.h>
-#include <linux/elevator.h>
-#include <linux/hdreg.h>
-#include <linux/slab.h>
-#include <linux/syscalls.h>
-#include <linux/types.h>
-#include <linux/uaccess.h>
-
-static int compat_put_ushort(unsigned long arg, unsigned short val)
-{
- return put_user(val, (unsigned short __user *)compat_ptr(arg));
-}
-
-static int compat_put_int(unsigned long arg, int val)
-{
- return put_user(val, (compat_int_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_uint(unsigned long arg, unsigned int val)
-{
- return put_user(val, (compat_uint_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_long(unsigned long arg, long val)
-{
- return put_user(val, (compat_long_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_ulong(unsigned long arg, compat_ulong_t val)
-{
- return put_user(val, (compat_ulong_t __user *)compat_ptr(arg));
-}
-
-static int compat_put_u64(unsigned long arg, u64 val)
-{
- return put_user(val, (compat_u64 __user *)compat_ptr(arg));
-}
-
-struct compat_hd_geometry {
- unsigned char heads;
- unsigned char sectors;
- unsigned short cylinders;
- u32 start;
-};
-
-static int compat_hdio_getgeo(struct gendisk *disk, struct block_device *bdev,
- struct compat_hd_geometry __user *ugeo)
-{
- struct hd_geometry geo;
- int ret;
-
- if (!ugeo)
- return -EINVAL;
- if (!disk->fops->getgeo)
- return -ENOTTY;
-
- memset(&geo, 0, sizeof(geo));
- /*
- * We need to set the startsect first, the driver may
- * want to override it.
- */
- geo.start = get_start_sect(bdev);
- ret = disk->fops->getgeo(bdev, &geo);
- if (ret)
- return ret;
-
- ret = copy_to_user(ugeo, &geo, 4);
- ret |= put_user(geo.start, &ugeo->start);
- if (ret)
- ret = -EFAULT;
-
- return ret;
-}
-
-static int compat_hdio_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- unsigned long __user *p;
- int error;
-
- p = compat_alloc_user_space(sizeof(unsigned long));
- error = __blkdev_driver_ioctl(bdev, mode,
- cmd, (unsigned long)p);
- if (error == 0) {
- unsigned int __user *uvp = compat_ptr(arg);
- unsigned long v;
- if (get_user(v, p) || put_user(v, uvp))
- error = -EFAULT;
- }
- return error;
-}
-
-struct compat_cdrom_read_audio {
- union cdrom_addr addr;
- u8 addr_format;
- compat_int_t nframes;
- compat_caddr_t buf;
-};
-
-struct compat_cdrom_generic_command {
- unsigned char cmd[CDROM_PACKET_SIZE];
- compat_caddr_t buffer;
- compat_uint_t buflen;
- compat_int_t stat;
- compat_caddr_t sense;
- unsigned char data_direction;
- compat_int_t quiet;
- compat_int_t timeout;
- compat_caddr_t reserved[1];
-};
-
-static int compat_cdrom_read_audio(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- struct cdrom_read_audio __user *cdread_audio;
- struct compat_cdrom_read_audio __user *cdread_audio32;
- __u32 data;
- void __user *datap;
-
- cdread_audio = compat_alloc_user_space(sizeof(*cdread_audio));
- cdread_audio32 = compat_ptr(arg);
-
- if (copy_in_user(&cdread_audio->addr,
- &cdread_audio32->addr,
- (sizeof(*cdread_audio32) -
- sizeof(compat_caddr_t))))
- return -EFAULT;
-
- if (get_user(data, &cdread_audio32->buf))
- return -EFAULT;
- datap = compat_ptr(data);
- if (put_user(datap, &cdread_audio->buf))
- return -EFAULT;
-
- return __blkdev_driver_ioctl(bdev, mode, cmd,
- (unsigned long)cdread_audio);
-}
-
-static int compat_cdrom_generic_command(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- struct cdrom_generic_command __user *cgc;
- struct compat_cdrom_generic_command __user *cgc32;
- u32 data;
- unsigned char dir;
- int itmp;
-
- cgc = compat_alloc_user_space(sizeof(*cgc));
- cgc32 = compat_ptr(arg);
-
- if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
- get_user(data, &cgc32->buffer) ||
- put_user(compat_ptr(data), &cgc->buffer) ||
- copy_in_user(&cgc->buflen, &cgc32->buflen,
- (sizeof(unsigned int) + sizeof(int))) ||
- get_user(data, &cgc32->sense) ||
- put_user(compat_ptr(data), &cgc->sense) ||
- get_user(dir, &cgc32->data_direction) ||
- put_user(dir, &cgc->data_direction) ||
- get_user(itmp, &cgc32->quiet) ||
- put_user(itmp, &cgc->quiet) ||
- get_user(itmp, &cgc32->timeout) ||
- put_user(itmp, &cgc->timeout) ||
- get_user(data, &cgc32->reserved[0]) ||
- put_user(compat_ptr(data), &cgc->reserved[0]))
- return -EFAULT;
-
- return __blkdev_driver_ioctl(bdev, mode, cmd, (unsigned long)cgc);
-}
-
-struct compat_blkpg_ioctl_arg {
- compat_int_t op;
- compat_int_t flags;
- compat_int_t datalen;
- compat_caddr_t data;
-};
-
-static int compat_blkpg_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned int cmd, struct compat_blkpg_ioctl_arg __user *ua32)
-{
- struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a));
- compat_caddr_t udata;
- compat_int_t n;
- int err;
-
- err = get_user(n, &ua32->op);
- err |= put_user(n, &a->op);
- err |= get_user(n, &ua32->flags);
- err |= put_user(n, &a->flags);
- err |= get_user(n, &ua32->datalen);
- err |= put_user(n, &a->datalen);
- err |= get_user(udata, &ua32->data);
- err |= put_user(compat_ptr(udata), &a->data);
- if (err)
- return err;
-
- return blkdev_ioctl(bdev, mode, cmd, (unsigned long)a);
-}
-
-#define BLKBSZGET_32 _IOR(0x12, 112, int)
-#define BLKBSZSET_32 _IOW(0x12, 113, int)
-#define BLKGETSIZE64_32 _IOR(0x12, 114, int)
-
-static int compat_blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
- unsigned cmd, unsigned long arg)
-{
- switch (cmd) {
- case HDIO_GET_UNMASKINTR:
- case HDIO_GET_MULTCOUNT:
- case HDIO_GET_KEEPSETTINGS:
- case HDIO_GET_32BIT:
- case HDIO_GET_NOWERR:
- case HDIO_GET_DMA:
- case HDIO_GET_NICE:
- case HDIO_GET_WCACHE:
- case HDIO_GET_ACOUSTIC:
- case HDIO_GET_ADDRESS:
- case HDIO_GET_BUSSTATE:
- return compat_hdio_ioctl(bdev, mode, cmd, arg);
- case CDROMREADAUDIO:
- return compat_cdrom_read_audio(bdev, mode, cmd, arg);
- case CDROM_SEND_PACKET:
- return compat_cdrom_generic_command(bdev, mode, cmd, arg);
-
- /*
- * No handler required for the ones below, we just need to
- * convert arg to a 64 bit pointer.
- */
- case BLKSECTSET:
- /*
- * 0x03 -- HD/IDE ioctl's used by hdparm and friends.
- * Some need translations, these do not.
- */
- case HDIO_GET_IDENTITY:
- case HDIO_DRIVE_TASK:
- case HDIO_DRIVE_CMD:
- /* 0x330 is reserved -- it used to be HDIO_GETGEO_BIG */
- case 0x330:
- /* CDROM stuff */
- case CDROMPAUSE:
- case CDROMRESUME:
- case CDROMPLAYMSF:
- case CDROMPLAYTRKIND:
- case CDROMREADTOCHDR:
- case CDROMREADTOCENTRY:
- case CDROMSTOP:
- case CDROMSTART:
- case CDROMEJECT:
- case CDROMVOLCTRL:
- case CDROMSUBCHNL:
- case CDROMMULTISESSION:
- case CDROM_GET_MCN:
- case CDROMRESET:
- case CDROMVOLREAD:
- case CDROMSEEK:
- case CDROMPLAYBLK:
- case CDROMCLOSETRAY:
- case CDROM_DISC_STATUS:
- case CDROM_CHANGER_NSLOTS:
- case CDROM_GET_CAPABILITY:
- /* Ignore cdrom.h about these next 5 ioctls, they absolutely do
- * not take a struct cdrom_read, instead they take a struct cdrom_msf
- * which is compatible.
- */
- case CDROMREADMODE2:
- case CDROMREADMODE1:
- case CDROMREADRAW:
- case CDROMREADCOOKED:
- case CDROMREADALL:
- /* DVD ioctls */
- case DVD_READ_STRUCT:
- case DVD_WRITE_STRUCT:
- case DVD_AUTH:
- arg = (unsigned long)compat_ptr(arg);
- /* These intepret arg as an unsigned long, not as a pointer,
- * so we must not do compat_ptr() conversion. */
- case HDIO_SET_MULTCOUNT:
- case HDIO_SET_UNMASKINTR:
- case HDIO_SET_KEEPSETTINGS:
- case HDIO_SET_32BIT:
- case HDIO_SET_NOWERR:
- case HDIO_SET_DMA:
- case HDIO_SET_PIO_MODE:
- case HDIO_SET_NICE:
- case HDIO_SET_WCACHE:
- case HDIO_SET_ACOUSTIC:
- case HDIO_SET_BUSSTATE:
- case HDIO_SET_ADDRESS:
- case CDROMEJECT_SW:
- case CDROM_SET_OPTIONS:
- case CDROM_CLEAR_OPTIONS:
- case CDROM_SELECT_SPEED:
- case CDROM_SELECT_DISC:
- case CDROM_MEDIA_CHANGED:
- case CDROM_DRIVE_STATUS:
- case CDROM_LOCKDOOR:
- case CDROM_DEBUG:
- break;
- default:
- /* unknown ioctl number */
- return -ENOIOCTLCMD;
- }
-
- return __blkdev_driver_ioctl(bdev, mode, cmd, arg);
-}
-
-/* Most of the generic ioctls are handled in the normal fallback path.
- This assumes the blkdev's low level compat_ioctl always returns
- ENOIOCTLCMD for unknown ioctls. */
-long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
-{
- int ret = -ENOIOCTLCMD;
- struct inode *inode = file->f_mapping->host;
- struct block_device *bdev = inode->i_bdev;
- struct gendisk *disk = bdev->bd_disk;
- fmode_t mode = file->f_mode;
- loff_t size;
- unsigned int max_sectors;
-
- /*
- * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have
- * to updated it before every ioctl.
- */
- if (file->f_flags & O_NDELAY)
- mode |= FMODE_NDELAY;
- else
- mode &= ~FMODE_NDELAY;
-
- switch (cmd) {
- case HDIO_GETGEO:
- return compat_hdio_getgeo(disk, bdev, compat_ptr(arg));
- case BLKPBSZGET:
- return compat_put_uint(arg, bdev_physical_block_size(bdev));
- case BLKIOMIN:
- return compat_put_uint(arg, bdev_io_min(bdev));
- case BLKIOOPT:
- return compat_put_uint(arg, bdev_io_opt(bdev));
- case BLKALIGNOFF:
- return compat_put_int(arg, bdev_alignment_offset(bdev));
- case BLKDISCARDZEROES:
- return compat_put_uint(arg, 0);
- case BLKFLSBUF:
- case BLKROSET:
- case BLKDISCARD:
- case BLKSECDISCARD:
- case BLKZEROOUT:
- /*
- * the ones below are implemented in blkdev_locked_ioctl,
- * but we call blkdev_ioctl, which gets the lock for us
- */
- case BLKRRPART:
- return blkdev_ioctl(bdev, mode, cmd,
- (unsigned long)compat_ptr(arg));
- case BLKBSZSET_32:
- return blkdev_ioctl(bdev, mode, BLKBSZSET,
- (unsigned long)compat_ptr(arg));
- case BLKPG:
- return compat_blkpg_ioctl(bdev, mode, cmd, compat_ptr(arg));
- case BLKRAGET:
- case BLKFRAGET:
- if (!arg)
- return -EINVAL;
- return compat_put_long(arg,
- (bdev->bd_bdi->ra_pages * PAGE_SIZE) / 512);
- case BLKROGET: /* compatible */
- return compat_put_int(arg, bdev_read_only(bdev) != 0);
- case BLKBSZGET_32: /* get the logical block size (cf. BLKSSZGET) */
- return compat_put_int(arg, block_size(bdev));
- case BLKSSZGET: /* get block device hardware sector size */
- return compat_put_int(arg, bdev_logical_block_size(bdev));
- case BLKSECTGET:
- max_sectors = min_t(unsigned int, USHRT_MAX,
- queue_max_sectors(bdev_get_queue(bdev)));
- return compat_put_ushort(arg, max_sectors);
- case BLKROTATIONAL:
- return compat_put_ushort(arg,
- !blk_queue_nonrot(bdev_get_queue(bdev)));
- case BLKRASET: /* compatible, but no compat_ptr (!) */
- case BLKFRASET:
- if (!capable(CAP_SYS_ADMIN))
- return -EACCES;
- bdev->bd_bdi->ra_pages = (arg * 512) / PAGE_SIZE;
- return 0;
- case BLKGETSIZE:
- size = i_size_read(bdev->bd_inode);
- if ((size >> 9) > ~0UL)
- return -EFBIG;
- return compat_put_ulong(arg, size >> 9);
-
- case BLKGETSIZE64_32:
- return compat_put_u64(arg, i_size_read(bdev->bd_inode));
-
- case BLKTRACESETUP32:
- case BLKTRACESTART: /* compatible */
- case BLKTRACESTOP: /* compatible */
- case BLKTRACETEARDOWN: /* compatible */
- ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
- return ret;
- default:
- if (disk->fops->compat_ioctl)
- ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);
- if (ret == -ENOIOCTLCMD)
- ret = compat_blkdev_driver_ioctl(bdev, mode, cmd, arg);
- return ret;
- }
-}
diff --git a/block/ioctl.c b/block/ioctl.c
index 5de98b97af2a..127194b9f9bd 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/capability.h>
+#include <linux/compat.h>
#include <linux/blkdev.h>
#include <linux/export.h>
#include <linux/gfp.h>
@@ -11,12 +12,12 @@
#include <linux/pr.h>
#include <linux/uaccess.h>
-static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user *arg)
+static int blkpg_do_ioctl(struct block_device *bdev,
+ struct blkpg_partition __user *upart, int op)
{
struct block_device *bdevp;
struct gendisk *disk;
struct hd_struct *part, *lpart;
- struct blkpg_ioctl_arg a;
struct blkpg_partition p;
struct disk_part_iter piter;
long long start, length;
@@ -24,9 +25,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- if (copy_from_user(&a, arg, sizeof(struct blkpg_ioctl_arg)))
- return -EFAULT;
- if (copy_from_user(&p, a.data, sizeof(struct blkpg_partition)))
+ if (copy_from_user(&p, upart, sizeof(struct blkpg_partition)))
return -EFAULT;
disk = bdev->bd_disk;
if (bdev != bdev->bd_contains)
@@ -34,7 +33,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
partno = p.pno;
if (partno <= 0)
return -EINVAL;
- switch (a.op) {
+ switch (op) {
case BLKPG_ADD_PARTITION:
start = p.start >> 9;
length = p.length >> 9;
@@ -155,6 +154,39 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
}
}
+static int blkpg_ioctl(struct block_device *bdev,
+ struct blkpg_ioctl_arg __user *arg)
+{
+ struct blkpg_partition __user *udata;
+ int op;
+
+ if (get_user(op, &arg->op) || get_user(udata, &arg->data))
+ return -EFAULT;
+
+ return blkpg_do_ioctl(bdev, udata, op);
+}
+
+#ifdef CONFIG_COMPAT
+struct compat_blkpg_ioctl_arg {
+ compat_int_t op;
+ compat_int_t flags;
+ compat_int_t datalen;
+ compat_caddr_t data;
+};
+
+static int compat_blkpg_ioctl(struct block_device *bdev,
+ struct compat_blkpg_ioctl_arg __user *arg)
+{
+ compat_caddr_t udata;
+ int op;
+
+ if (get_user(op, &arg->op) || get_user(udata, &arg->data))
+ return -EFAULT;
+
+ return blkpg_do_ioctl(bdev, compat_ptr(udata), op);
+}
+#endif
+
static int blkdev_reread_part(struct block_device *bdev)
{
int ret;
@@ -238,36 +270,48 @@ static int blk_ioctl_zeroout(struct block_device *bdev, fmode_t mode,
BLKDEV_ZERO_NOUNMAP);
}
-static int put_ushort(unsigned long arg, unsigned short val)
+static int put_ushort(unsigned short __user *argp, unsigned short val)
{
- return put_user(val, (unsigned short __user *)arg);
+ return put_user(val, argp);
}
-static int put_int(unsigned long arg, int val)
+static int put_int(int __user *argp, int val)
{
- return put_user(val, (int __user *)arg);
+ return put_user(val, argp);
}
-static int put_uint(unsigned long arg, unsigned int val)
+static int put_uint(unsigned int __user *argp, unsigned int val)
{
- return put_user(val, (unsigned int __user *)arg);
+ return put_user(val, argp);
}
-static int put_long(unsigned long arg, long val)
+static int put_long(long __user *argp, long val)
{
- return put_user(val, (long __user *)arg);
+ return put_user(val, argp);
}
-static int put_ulong(unsigned long arg, unsigned long val)
+static int put_ulong(unsigned long __user *argp, unsigned long val)
{
- return put_user(val, (unsigned long __user *)arg);
+ return put_user(val, argp);
}
-static int put_u64(unsigned long arg, u64 val)
+static int put_u64(u64 __user *argp, u64 val)
{
- return put_user(val, (u64 __user *)arg);
+ return put_user(val, argp);
}
+#ifdef CONFIG_COMPAT
+static int compat_put_long(compat_long_t *argp, long val)
+{
+ return put_user(val, argp);
+}
+
+static int compat_put_ulong(compat_ulong_t *argp, compat_ulong_t val)
+{
+ return put_user(val, argp);
+}
+#endif
+
int __blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
unsigned cmd, unsigned long arg)
{
@@ -285,6 +329,26 @@ int __blkdev_driver_ioctl(struct block_device *bdev, fmode_t mode,
*/
EXPORT_SYMBOL_GPL(__blkdev_driver_ioctl);
+#ifdef CONFIG_COMPAT
+/*
+ * This is the equivalent of compat_ptr_ioctl(), to be used by block
+ * drivers that implement only commands that are completely compatible
+ * between 32-bit and 64-bit user space
+ */
+int blkdev_compat_ptr_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned cmd, unsigned long arg)
+{
+ struct gendisk *disk = bdev->bd_disk;
+
+ if (disk->fops->ioctl)
+ return disk->fops->ioctl(bdev, mode, cmd,
+ (unsigned long)compat_ptr(arg));
+
+ return -ENOIOCTLCMD;
+}
+EXPORT_SYMBOL(blkdev_compat_ptr_ioctl);
+#endif
+
static int blkdev_pr_register(struct block_device *bdev,
struct pr_registration __user *arg)
{
@@ -455,6 +519,45 @@ static int blkdev_getgeo(struct block_device *bdev,
return 0;
}
+#ifdef CONFIG_COMPAT
+struct compat_hd_geometry {
+ unsigned char heads;
+ unsigned char sectors;
+ unsigned short cylinders;
+ u32 start;
+};
+
+static int compat_hdio_getgeo(struct block_device *bdev,
+ struct compat_hd_geometry __user *ugeo)
+{
+ struct gendisk *disk = bdev->bd_disk;
+ struct hd_geometry geo;
+ int ret;
+
+ if (!ugeo)
+ return -EINVAL;
+ if (!disk->fops->getgeo)
+ return -ENOTTY;
+
+ memset(&geo, 0, sizeof(geo));
+ /*
+ * We need to set the startsect first, the driver may
+ * want to override it.
+ */
+ geo.start = get_start_sect(bdev);
+ ret = disk->fops->getgeo(bdev, &geo);
+ if (ret)
+ return ret;
+
+ ret = copy_to_user(ugeo, &geo, 4);
+ ret |= put_user(geo.start, &ugeo->start);
+ if (ret)
+ ret = -EFAULT;
+
+ return ret;
+}
+#endif
+
/* set the logical block size */
static int blkdev_bszset(struct block_device *bdev, fmode_t mode,
int __user *argp)
@@ -481,13 +584,13 @@ static int blkdev_bszset(struct block_device *bdev, fmode_t mode,
}
/*
- * always keep this in sync with compat_blkdev_ioctl()
+ * Common commands that are handled the same way on native and compat
+ * user space. Note the separate arg/argp parameters that are needed
+ * to deal with the compat_ptr() conversion.
*/
-int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
- unsigned long arg)
+static int blkdev_common_ioctl(struct block_device *bdev, fmode_t mode,
+ unsigned cmd, unsigned long arg, void __user *argp)
{
- void __user *argp = (void __user *)arg;
- loff_t size;
unsigned int max_sectors;
switch (cmd) {
@@ -510,60 +613,39 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
case BLKFINISHZONE:
return blkdev_zone_mgmt_ioctl(bdev, mode, cmd, arg);
case BLKGETZONESZ:
- return put_uint(arg, bdev_zone_sectors(bdev));
+ return put_uint(argp, bdev_zone_sectors(bdev));
case BLKGETNRZONES:
- return put_uint(arg, blkdev_nr_zones(bdev->bd_disk));
- case HDIO_GETGEO:
- return blkdev_getgeo(bdev, argp);
- case BLKRAGET:
- case BLKFRAGET:
- if (!arg)
- return -EINVAL;
- return put_long(arg, (bdev->bd_bdi->ra_pages*PAGE_SIZE) / 512);
+ return put_uint(argp, blkdev_nr_zones(bdev->bd_disk));
case BLKROGET:
- return put_int(arg, bdev_read_only(bdev) != 0);
- case BLKBSZGET: /* get block device soft block size (cf. BLKSSZGET) */
- return put_int(arg, block_size(bdev));
+ return put_int(argp, bdev_read_only(bdev) != 0);
case BLKSSZGET: /* get block device logical block size */
- return put_int(arg, bdev_logical_block_size(bdev));
+ return put_int(argp, bdev_logical_block_size(bdev));
case BLKPBSZGET: /* get block device physical block size */
- return put_uint(arg, bdev_physical_block_size(bdev));
+ return put_uint(argp, bdev_physical_block_size(bdev));
case BLKIOMIN:
- return put_uint(arg, bdev_io_min(bdev));
+ return put_uint(argp, bdev_io_min(bdev));
case BLKIOOPT:
- return put_uint(arg, bdev_io_opt(bdev));
+ return put_uint(argp, bdev_io_opt(bdev));
case BLKALIGNOFF:
- return put_int(arg, bdev_alignment_offset(bdev));
+ return put_int(argp, bdev_alignment_offset(bdev));
case BLKDISCARDZEROES:
- return put_uint(arg, 0);
+ return put_uint(argp, 0);
case BLKSECTGET:
max_sectors = min_t(unsigned int, USHRT_MAX,
queue_max_sectors(bdev_get_queue(bdev)));
- return put_ushort(arg, max_sectors);
+ return put_ushort(argp, max_sectors);
case BLKROTATIONAL:
- return put_ushort(arg, !blk_queue_nonrot(bdev_get_queue(bdev)));
+ return put_ushort(argp, !blk_queue_nonrot(bdev_get_queue(bdev)));
case BLKRASET:
case BLKFRASET:
if(!capable(CAP_SYS_ADMIN))
return -EACCES;
bdev->bd_bdi->ra_pages = (arg * 512) / PAGE_SIZE;
return 0;
- case BLKBSZSET:
- return blkdev_bszset(bdev, mode, argp);
- case BLKPG:
- return blkpg_ioctl(bdev, argp);
case BLKRRPART:
return blkdev_reread_part(bdev);
- case BLKGETSIZE:
- size = i_size_read(bdev->bd_inode);
- if ((size >> 9) > ~0UL)
- return -EFBIG;
- return put_ulong(arg, size >> 9);
- case BLKGETSIZE64:
- return put_u64(arg, i_size_read(bdev->bd_inode));
case BLKTRACESTART:
case BLKTRACESTOP:
- case BLKTRACESETUP:
case BLKTRACETEARDOWN:
return blk_trace_ioctl(bdev, cmd, argp);
case IOC_PR_REGISTER:
@@ -579,7 +661,132 @@ int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
case IOC_PR_CLEAR:
return blkdev_pr_clear(bdev, argp);
default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+/*
+ * Always keep this in sync with compat_blkdev_ioctl()
+ * to handle all incompatible commands in both functions.
+ *
+ * New commands must be compatible and go into blkdev_common_ioctl
+ */
+int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
+ unsigned long arg)
+{
+ int ret;
+ loff_t size;
+ void __user *argp = (void __user *)arg;
+
+ switch (cmd) {
+ /* These need separate implementations for the data structure */
+ case HDIO_GETGEO:
+ return blkdev_getgeo(bdev, argp);
+ case BLKPG:
+ return blkpg_ioctl(bdev, argp);
+
+ /* Compat mode returns 32-bit data instead of 'long' */
+ case BLKRAGET:
+ case BLKFRAGET:
+ if (!argp)
+ return -EINVAL;
+ return put_long(argp, (bdev->bd_bdi->ra_pages*PAGE_SIZE) / 512);
+ case BLKGETSIZE:
+ size = i_size_read(bdev->bd_inode);
+ if ((size >> 9) > ~0UL)
+ return -EFBIG;
+ return put_ulong(argp, size >> 9);
+
+ /* The data is compatible, but the command number is different */
+ case BLKBSZGET: /* get block device soft block size (cf. BLKSSZGET) */
+ return put_int(argp, block_size(bdev));
+ case BLKBSZSET:
+ return blkdev_bszset(bdev, mode, argp);
+ case BLKGETSIZE64:
+ return put_u64(argp, i_size_read(bdev->bd_inode));
+
+ /* Incompatible alignment on i386 */
+ case BLKTRACESETUP:
+ return blk_trace_ioctl(bdev, cmd, argp);
+ default:
+ break;
+ }
+
+ ret = blkdev_common_ioctl(bdev, mode, cmd, arg, argp);
+ if (ret == -ENOIOCTLCMD)
return __blkdev_driver_ioctl(bdev, mode, cmd, arg);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(blkdev_ioctl); /* for /dev/raw */
+
+#ifdef CONFIG_COMPAT
+
+#define BLKBSZGET_32 _IOR(0x12, 112, int)
+#define BLKBSZSET_32 _IOW(0x12, 113, int)
+#define BLKGETSIZE64_32 _IOR(0x12, 114, int)
+
+/* Most of the generic ioctls are handled in the normal fallback path.
+ This assumes the blkdev's low level compat_ioctl always returns
+ ENOIOCTLCMD for unknown ioctls. */
+long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
+{
+ int ret;
+ void __user *argp = compat_ptr(arg);
+ struct inode *inode = file->f_mapping->host;
+ struct block_device *bdev = inode->i_bdev;
+ struct gendisk *disk = bdev->bd_disk;
+ fmode_t mode = file->f_mode;
+ loff_t size;
+
+ /*
+ * O_NDELAY can be altered using fcntl(.., F_SETFL, ..), so we have
+ * to updated it before every ioctl.
+ */
+ if (file->f_flags & O_NDELAY)
+ mode |= FMODE_NDELAY;
+ else
+ mode &= ~FMODE_NDELAY;
+
+ switch (cmd) {
+ /* These need separate implementations for the data structure */
+ case HDIO_GETGEO:
+ return compat_hdio_getgeo(bdev, argp);
+ case BLKPG:
+ return compat_blkpg_ioctl(bdev, argp);
+
+ /* Compat mode returns 32-bit data instead of 'long' */
+ case BLKRAGET:
+ case BLKFRAGET:
+ if (!argp)
+ return -EINVAL;
+ return compat_put_long(argp,
+ (bdev->bd_bdi->ra_pages * PAGE_SIZE) / 512);
+ case BLKGETSIZE:
+ size = i_size_read(bdev->bd_inode);
+ if ((size >> 9) > ~0UL)
+ return -EFBIG;
+ return compat_put_ulong(argp, size >> 9);
+
+ /* The data is compatible, but the command number is different */
+ case BLKBSZGET_32: /* get the logical block size (cf. BLKSSZGET) */
+ return put_int(argp, bdev_logical_block_size(bdev));
+ case BLKBSZSET_32:
+ return blkdev_bszset(bdev, mode, argp);
+ case BLKGETSIZE64_32:
+ return put_u64(argp, i_size_read(bdev->bd_inode));
+
+ /* Incompatible alignment on i386 */
+ case BLKTRACESETUP32:
+ return blk_trace_ioctl(bdev, cmd, argp);
+ default:
+ break;
}
+
+ ret = blkdev_common_ioctl(bdev, mode, cmd, arg, argp);
+ if (ret == -ENOIOCTLCMD && disk->fops->compat_ioctl)
+ ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);
+
+ return ret;
}
-EXPORT_SYMBOL_GPL(blkdev_ioctl);
+#endif
diff --git a/block/partition-generic.c b/block/partition-generic.c
index 1d20c9cf213f..564fae77711d 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -321,6 +321,24 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
const char *dname;
int err;
+ /*
+ * Partitions are not supported on zoned block devices that are used as
+ * such.
+ */
+ switch (disk->queue->limits.zoned) {
+ case BLK_ZONED_HM:
+ pr_warn("%s: partitions not supported on host managed zoned block device\n",
+ disk->disk_name);
+ return ERR_PTR(-ENXIO);
+ case BLK_ZONED_HA:
+ pr_info("%s: disabling host aware zoned block device support due to partitions\n",
+ disk->disk_name);
+ disk->queue->limits.zoned = BLK_ZONED_NONE;
+ break;
+ case BLK_ZONED_NONE:
+ break;
+ }
+
err = disk_expand_part_tbl(disk, partno);
if (err)
return ERR_PTR(err);
@@ -501,7 +519,7 @@ static bool blk_add_partition(struct gendisk *disk, struct block_device *bdev,
part = add_partition(disk, p, from, size, state->parts[p].flags,
&state->parts[p].info);
- if (IS_ERR(part)) {
+ if (IS_ERR(part) && PTR_ERR(part) != -ENXIO) {
printk(KERN_ERR " %s: p%d could not be added: %ld\n",
disk->disk_name, p, -PTR_ERR(part));
return true;
@@ -540,10 +558,10 @@ int blk_add_partitions(struct gendisk *disk, struct block_device *bdev)
}
/*
- * Partitions are not supported on zoned block devices.
+ * Partitions are not supported on host managed zoned block devices.
*/
- if (bdev_is_zoned(bdev)) {
- pr_warn("%s: ignoring partition table on zoned block device\n",
+ if (disk->queue->limits.zoned == BLK_ZONED_HM) {
+ pr_warn("%s: ignoring partition table on host managed zoned block device\n",
disk->disk_name);
ret = 0;
goto out_free_state;
diff --git a/block/partitions/ldm.c b/block/partitions/ldm.c
index fe5d970e2e60..a2d97ee1908c 100644
--- a/block/partitions/ldm.c
+++ b/block/partitions/ldm.c
@@ -1233,7 +1233,7 @@ static bool ldm_frag_add (const u8 *data, int size, struct list_head *frags)
BUG_ON (!data || !frags);
if (size < 2 * VBLK_SIZE_HEAD) {
- ldm_error("Value of size is to small.");
+ ldm_error("Value of size is too small.");
return false;
}
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 650bade5ea5a..b4e73d5dd5c2 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -20,6 +20,7 @@
#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/scsi_cmnd.h>
+#include <scsi/sg.h>
struct blk_cmd_filter {
unsigned long read_ok[BLK_SCSI_CMD_PER_LONG];
@@ -550,34 +551,6 @@ static inline int blk_send_start_stop(struct request_queue *q,
return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data);
}
-#ifdef CONFIG_COMPAT
-struct compat_sg_io_hdr {
- compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */
- compat_int_t dxfer_direction; /* [i] data transfer direction */
- unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */
- unsigned char mx_sb_len; /* [i] max length to write to sbp */
- unsigned short iovec_count; /* [i] 0 implies no scatter gather */
- compat_uint_t dxfer_len; /* [i] byte count of data transfer */
- compat_uint_t dxferp; /* [i], [*io] points to data transfer memory
- or scatter gather list */
- compat_uptr_t cmdp; /* [i], [*i] points to command to perform */
- compat_uptr_t sbp; /* [i], [*o] points to sense_buffer memory */
- compat_uint_t timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */
- compat_uint_t flags; /* [i] 0 -> default, see SG_FLAG... */
- compat_int_t pack_id; /* [i->o] unused internally (normally) */
- compat_uptr_t usr_ptr; /* [i->o] unused internally */
- unsigned char status; /* [o] scsi status */
- unsigned char masked_status; /* [o] shifted, masked scsi status */
- unsigned char msg_status; /* [o] messaging level data (optional) */
- unsigned char sb_len_wr; /* [o] byte count actually written to sbp */
- unsigned short host_status; /* [o] errors from host adapter */
- unsigned short driver_status; /* [o] errors from software driver */
- compat_int_t resid; /* [o] dxfer_len - actual_transferred */
- compat_uint_t duration; /* [o] time taken by cmd (unit: millisec) */
- compat_uint_t info; /* [o] auxiliary information */
-};
-#endif
-
int put_sg_io_hdr(const struct sg_io_hdr *hdr, void __user *argp)
{
#ifdef CONFIG_COMPAT
@@ -666,6 +639,136 @@ int get_sg_io_hdr(struct sg_io_hdr *hdr, const void __user *argp)
}
EXPORT_SYMBOL(get_sg_io_hdr);
+#ifdef CONFIG_COMPAT
+struct compat_cdrom_generic_command {
+ unsigned char cmd[CDROM_PACKET_SIZE];
+ compat_caddr_t buffer;
+ compat_uint_t buflen;
+ compat_int_t stat;
+ compat_caddr_t sense;
+ unsigned char data_direction;
+ compat_int_t quiet;
+ compat_int_t timeout;
+ compat_caddr_t reserved[1];
+};
+#endif
+
+static int scsi_get_cdrom_generic_arg(struct cdrom_generic_command *cgc,
+ const void __user *arg)
+{
+#ifdef CONFIG_COMPAT
+ if (in_compat_syscall()) {
+ struct compat_cdrom_generic_command cgc32;
+
+ if (copy_from_user(&cgc32, arg, sizeof(cgc32)))
+ return -EFAULT;
+
+ *cgc = (struct cdrom_generic_command) {
+ .buffer = compat_ptr(cgc32.buffer),
+ .buflen = cgc32.buflen,
+ .stat = cgc32.stat,
+ .sense = compat_ptr(cgc32.sense),
+ .data_direction = cgc32.data_direction,
+ .quiet = cgc32.quiet,
+ .timeout = cgc32.timeout,
+ .reserved[0] = compat_ptr(cgc32.reserved[0]),
+ };
+ memcpy(&cgc->cmd, &cgc32.cmd, CDROM_PACKET_SIZE);
+ return 0;
+ }
+#endif
+ if (copy_from_user(cgc, arg, sizeof(*cgc)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int scsi_put_cdrom_generic_arg(const struct cdrom_generic_command *cgc,
+ void __user *arg)
+{
+#ifdef CONFIG_COMPAT
+ if (in_compat_syscall()) {
+ struct compat_cdrom_generic_command cgc32 = {
+ .buffer = (uintptr_t)(cgc->buffer),
+ .buflen = cgc->buflen,
+ .stat = cgc->stat,
+ .sense = (uintptr_t)(cgc->sense),
+ .data_direction = cgc->data_direction,
+ .quiet = cgc->quiet,
+ .timeout = cgc->timeout,
+ .reserved[0] = (uintptr_t)(cgc->reserved[0]),
+ };
+ memcpy(&cgc32.cmd, &cgc->cmd, CDROM_PACKET_SIZE);
+
+ if (copy_to_user(arg, &cgc32, sizeof(cgc32)))
+ return -EFAULT;
+
+ return 0;
+ }
+#endif
+ if (copy_to_user(arg, cgc, sizeof(*cgc)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int scsi_cdrom_send_packet(struct request_queue *q,
+ struct gendisk *bd_disk,
+ fmode_t mode, void __user *arg)
+{
+ struct cdrom_generic_command cgc;
+ struct sg_io_hdr hdr;
+ int err;
+
+ err = scsi_get_cdrom_generic_arg(&cgc, arg);
+ if (err)
+ return err;
+
+ cgc.timeout = clock_t_to_jiffies(cgc.timeout);
+ memset(&hdr, 0, sizeof(hdr));
+ hdr.interface_id = 'S';
+ hdr.cmd_len = sizeof(cgc.cmd);
+ hdr.dxfer_len = cgc.buflen;
+ switch (cgc.data_direction) {
+ case CGC_DATA_UNKNOWN:
+ hdr.dxfer_direction = SG_DXFER_UNKNOWN;
+ break;
+ case CGC_DATA_WRITE:
+ hdr.dxfer_direction = SG_DXFER_TO_DEV;
+ break;
+ case CGC_DATA_READ:
+ hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+ break;
+ case CGC_DATA_NONE:
+ hdr.dxfer_direction = SG_DXFER_NONE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ hdr.dxferp = cgc.buffer;
+ hdr.sbp = cgc.sense;
+ if (hdr.sbp)
+ hdr.mx_sb_len = sizeof(struct request_sense);
+ hdr.timeout = jiffies_to_msecs(cgc.timeout);
+ hdr.cmdp = ((struct cdrom_generic_command __user*) arg)->cmd;
+ hdr.cmd_len = sizeof(cgc.cmd);
+
+ err = sg_io(q, bd_disk, &hdr, mode);
+ if (err == -EFAULT)
+ return -EFAULT;
+
+ if (hdr.status)
+ return -EIO;
+
+ cgc.stat = err;
+ cgc.buflen = hdr.resid;
+ if (scsi_put_cdrom_generic_arg(&cgc, arg))
+ return -EFAULT;
+
+ return err;
+}
+
int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mode,
unsigned int cmd, void __user *arg)
{
@@ -716,60 +819,9 @@ int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mod
err = -EFAULT;
break;
}
- case CDROM_SEND_PACKET: {
- struct cdrom_generic_command cgc;
- struct sg_io_hdr hdr;
-
- err = -EFAULT;
- if (copy_from_user(&cgc, arg, sizeof(cgc)))
- break;
- cgc.timeout = clock_t_to_jiffies(cgc.timeout);
- memset(&hdr, 0, sizeof(hdr));
- hdr.interface_id = 'S';
- hdr.cmd_len = sizeof(cgc.cmd);
- hdr.dxfer_len = cgc.buflen;
- err = 0;
- switch (cgc.data_direction) {
- case CGC_DATA_UNKNOWN:
- hdr.dxfer_direction = SG_DXFER_UNKNOWN;
- break;
- case CGC_DATA_WRITE:
- hdr.dxfer_direction = SG_DXFER_TO_DEV;
- break;
- case CGC_DATA_READ:
- hdr.dxfer_direction = SG_DXFER_FROM_DEV;
- break;
- case CGC_DATA_NONE:
- hdr.dxfer_direction = SG_DXFER_NONE;
- break;
- default:
- err = -EINVAL;
- }
- if (err)
- break;
-
- hdr.dxferp = cgc.buffer;
- hdr.sbp = cgc.sense;
- if (hdr.sbp)
- hdr.mx_sb_len = sizeof(struct request_sense);
- hdr.timeout = jiffies_to_msecs(cgc.timeout);
- hdr.cmdp = ((struct cdrom_generic_command __user*) arg)->cmd;
- hdr.cmd_len = sizeof(cgc.cmd);
-
- err = sg_io(q, bd_disk, &hdr, mode);
- if (err == -EFAULT)
- break;
-
- if (hdr.status)
- err = -EIO;
-
- cgc.stat = err;
- cgc.buflen = hdr.resid;
- if (copy_to_user(arg, &cgc, sizeof(cgc)))
- err = -EFAULT;
-
+ case CDROM_SEND_PACKET:
+ err = scsi_cdrom_send_packet(q, bd_disk, mode, arg);
break;
- }
/*
* old junk scsi send command ioctl
diff --git a/block/t10-pi.c b/block/t10-pi.c
index f4907d941f03..d910534b3a41 100644
--- a/block/t10-pi.c
+++ b/block/t10-pi.c
@@ -7,6 +7,7 @@
#include <linux/t10-pi.h>
#include <linux/blkdev.h>
#include <linux/crc-t10dif.h>
+#include <linux/module.h>
#include <net/checksum.h>
typedef __be16 (csum_fn) (void *, unsigned int);
@@ -280,3 +281,5 @@ const struct blk_integrity_profile t10_pi_type3_ip = {
.complete_fn = t10_pi_type3_complete,
};
EXPORT_SYMBOL(t10_pi_type3_ip);
+
+MODULE_LICENSE("GPL");
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 5575d48473bd..cdb51d4272d0 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -511,10 +511,10 @@ config CRYPTO_ESSIV
encryption.
This driver implements a crypto API template that can be
- instantiated either as a skcipher or as a aead (depending on the
+ instantiated either as an skcipher or as an AEAD (depending on the
type of the first template argument), and which defers encryption
and decryption requests to the encapsulated cipher after applying
- ESSIV to the input IV. Note that in the aead case, it is assumed
+ ESSIV to the input IV. Note that in the AEAD case, it is assumed
that the keys are presented in the same format used by the authenc
template, and that the IV appears at the end of the authenticated
associated data (AAD) region (which is how dm-crypt uses it.)
diff --git a/crypto/acompress.c b/crypto/acompress.c
index abadcb035a41..84a76723e851 100644
--- a/crypto/acompress.c
+++ b/crypto/acompress.c
@@ -151,9 +151,9 @@ int crypto_register_acomp(struct acomp_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_register_acomp);
-int crypto_unregister_acomp(struct acomp_alg *alg)
+void crypto_unregister_acomp(struct acomp_alg *alg)
{
- return crypto_unregister_alg(&alg->base);
+ crypto_unregister_alg(&alg->base);
}
EXPORT_SYMBOL_GPL(crypto_unregister_acomp);
diff --git a/crypto/adiantum.c b/crypto/adiantum.c
index 9dc53cf9b1f1..cf2b9f4103dd 100644
--- a/crypto/adiantum.c
+++ b/crypto/adiantum.c
@@ -39,8 +39,6 @@
#include <crypto/scatterwalk.h>
#include <linux/module.h>
-#include "internal.h"
-
/*
* Size of right-hand part of input data, in bytes; also the size of the block
* cipher's block size and the hash function's output.
@@ -64,7 +62,7 @@
struct adiantum_instance_ctx {
struct crypto_skcipher_spawn streamcipher_spawn;
- struct crypto_spawn blockcipher_spawn;
+ struct crypto_cipher_spawn blockcipher_spawn;
struct crypto_shash_spawn hash_spawn;
};
@@ -72,7 +70,7 @@ struct adiantum_tfm_ctx {
struct crypto_skcipher *streamcipher;
struct crypto_cipher *blockcipher;
struct crypto_shash *hash;
- struct poly1305_key header_hash_key;
+ struct poly1305_core_key header_hash_key;
};
struct adiantum_request_ctx {
@@ -135,9 +133,6 @@ static int adiantum_setkey(struct crypto_skcipher *tfm, const u8 *key,
crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(tctx->streamcipher, key, keylen);
- crypto_skcipher_set_flags(tfm,
- crypto_skcipher_get_flags(tctx->streamcipher) &
- CRYPTO_TFM_RES_MASK);
if (err)
return err;
@@ -167,9 +162,6 @@ static int adiantum_setkey(struct crypto_skcipher *tfm, const u8 *key,
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(tctx->blockcipher, keyp,
BLOCKCIPHER_KEY_SIZE);
- crypto_skcipher_set_flags(tfm,
- crypto_cipher_get_flags(tctx->blockcipher) &
- CRYPTO_TFM_RES_MASK);
if (err)
goto out;
keyp += BLOCKCIPHER_KEY_SIZE;
@@ -182,8 +174,6 @@ static int adiantum_setkey(struct crypto_skcipher *tfm, const u8 *key,
crypto_shash_set_flags(tctx->hash, crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
err = crypto_shash_setkey(tctx->hash, keyp, NHPOLY1305_KEY_SIZE);
- crypto_skcipher_set_flags(tfm, crypto_shash_get_flags(tctx->hash) &
- CRYPTO_TFM_RES_MASK);
keyp += NHPOLY1305_KEY_SIZE;
WARN_ON(keyp != &data->derived_keys[ARRAY_SIZE(data->derived_keys)]);
out:
@@ -249,7 +239,7 @@ static void adiantum_hash_header(struct skcipher_request *req)
poly1305_core_blocks(&state, &tctx->header_hash_key, req->iv,
TWEAK_SIZE / POLY1305_BLOCK_SIZE, 1);
- poly1305_core_emit(&state, &rctx->header_hash);
+ poly1305_core_emit(&state, NULL, &rctx->header_hash);
}
/* Hash the left-hand part (the "bulk") of the message using NHPoly1305 */
@@ -469,7 +459,7 @@ static void adiantum_free_instance(struct skcipher_instance *inst)
struct adiantum_instance_ctx *ictx = skcipher_instance_ctx(inst);
crypto_drop_skcipher(&ictx->streamcipher_spawn);
- crypto_drop_spawn(&ictx->blockcipher_spawn);
+ crypto_drop_cipher(&ictx->blockcipher_spawn);
crypto_drop_shash(&ictx->hash_spawn);
kfree(inst);
}
@@ -501,14 +491,12 @@ static bool adiantum_supported_algorithms(struct skcipher_alg *streamcipher_alg,
static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct crypto_attr_type *algt;
- const char *streamcipher_name;
- const char *blockcipher_name;
+ u32 mask;
const char *nhpoly1305_name;
struct skcipher_instance *inst;
struct adiantum_instance_ctx *ictx;
struct skcipher_alg *streamcipher_alg;
struct crypto_alg *blockcipher_alg;
- struct crypto_alg *_hash_alg;
struct shash_alg *hash_alg;
int err;
@@ -519,19 +507,7 @@ static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
return -EINVAL;
- streamcipher_name = crypto_attr_alg_name(tb[1]);
- if (IS_ERR(streamcipher_name))
- return PTR_ERR(streamcipher_name);
-
- blockcipher_name = crypto_attr_alg_name(tb[2]);
- if (IS_ERR(blockcipher_name))
- return PTR_ERR(blockcipher_name);
-
- nhpoly1305_name = crypto_attr_alg_name(tb[3]);
- if (nhpoly1305_name == ERR_PTR(-ENOENT))
- nhpoly1305_name = "nhpoly1305";
- if (IS_ERR(nhpoly1305_name))
- return PTR_ERR(nhpoly1305_name);
+ mask = crypto_requires_sync(algt->type, algt->mask);
inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
if (!inst)
@@ -539,37 +515,31 @@ static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
ictx = skcipher_instance_ctx(inst);
/* Stream cipher, e.g. "xchacha12" */
- crypto_set_skcipher_spawn(&ictx->streamcipher_spawn,
- skcipher_crypto_instance(inst));
- err = crypto_grab_skcipher(&ictx->streamcipher_spawn, streamcipher_name,
- 0, crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(&ictx->streamcipher_spawn,
+ skcipher_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, mask);
if (err)
- goto out_free_inst;
+ goto err_free_inst;
streamcipher_alg = crypto_spawn_skcipher_alg(&ictx->streamcipher_spawn);
/* Block cipher, e.g. "aes" */
- crypto_set_spawn(&ictx->blockcipher_spawn,
- skcipher_crypto_instance(inst));
- err = crypto_grab_spawn(&ictx->blockcipher_spawn, blockcipher_name,
- CRYPTO_ALG_TYPE_CIPHER, CRYPTO_ALG_TYPE_MASK);
+ err = crypto_grab_cipher(&ictx->blockcipher_spawn,
+ skcipher_crypto_instance(inst),
+ crypto_attr_alg_name(tb[2]), 0, mask);
if (err)
- goto out_drop_streamcipher;
- blockcipher_alg = ictx->blockcipher_spawn.alg;
+ goto err_free_inst;
+ blockcipher_alg = crypto_spawn_cipher_alg(&ictx->blockcipher_spawn);
/* NHPoly1305 ε-∆U hash function */
- _hash_alg = crypto_alg_mod_lookup(nhpoly1305_name,
- CRYPTO_ALG_TYPE_SHASH,
- CRYPTO_ALG_TYPE_MASK);
- if (IS_ERR(_hash_alg)) {
- err = PTR_ERR(_hash_alg);
- goto out_drop_blockcipher;
- }
- hash_alg = __crypto_shash_alg(_hash_alg);
- err = crypto_init_shash_spawn(&ictx->hash_spawn, hash_alg,
- skcipher_crypto_instance(inst));
+ nhpoly1305_name = crypto_attr_alg_name(tb[3]);
+ if (nhpoly1305_name == ERR_PTR(-ENOENT))
+ nhpoly1305_name = "nhpoly1305";
+ err = crypto_grab_shash(&ictx->hash_spawn,
+ skcipher_crypto_instance(inst),
+ nhpoly1305_name, 0, mask);
if (err)
- goto out_put_hash;
+ goto err_free_inst;
+ hash_alg = crypto_spawn_shash_alg(&ictx->hash_spawn);
/* Check the set of algorithms */
if (!adiantum_supported_algorithms(streamcipher_alg, blockcipher_alg,
@@ -578,7 +548,7 @@ static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
streamcipher_alg->base.cra_name,
blockcipher_alg->cra_name, hash_alg->base.cra_name);
err = -EINVAL;
- goto out_drop_hash;
+ goto err_free_inst;
}
/* Instance fields */
@@ -587,13 +557,13 @@ static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"adiantum(%s,%s)", streamcipher_alg->base.cra_name,
blockcipher_alg->cra_name) >= CRYPTO_MAX_ALG_NAME)
- goto out_drop_hash;
+ goto err_free_inst;
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"adiantum(%s,%s,%s)",
streamcipher_alg->base.cra_driver_name,
blockcipher_alg->cra_driver_name,
hash_alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
- goto out_drop_hash;
+ goto err_free_inst;
inst->alg.base.cra_flags = streamcipher_alg->base.cra_flags &
CRYPTO_ALG_ASYNC;
@@ -623,22 +593,10 @@ static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->free = adiantum_free_instance;
err = skcipher_register_instance(tmpl, inst);
- if (err)
- goto out_drop_hash;
-
- crypto_mod_put(_hash_alg);
- return 0;
-
-out_drop_hash:
- crypto_drop_shash(&ictx->hash_spawn);
-out_put_hash:
- crypto_mod_put(_hash_alg);
-out_drop_blockcipher:
- crypto_drop_spawn(&ictx->blockcipher_spawn);
-out_drop_streamcipher:
- crypto_drop_skcipher(&ictx->streamcipher_spawn);
-out_free_inst:
- kfree(inst);
+ if (err) {
+err_free_inst:
+ adiantum_free_instance(inst);
+ }
return err;
}
diff --git a/crypto/aead.c b/crypto/aead.c
index 47f16d139e8e..16991095270d 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -185,11 +185,6 @@ static void crypto_aead_free_instance(struct crypto_instance *inst)
{
struct aead_instance *aead = aead_instance(inst);
- if (!aead->free) {
- inst->tmpl->free(inst);
- return;
- }
-
aead->free(aead);
}
@@ -207,11 +202,12 @@ static const struct crypto_type crypto_aead_type = {
.tfmsize = offsetof(struct crypto_aead, base),
};
-int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,
- u32 type, u32 mask)
+int crypto_grab_aead(struct crypto_aead_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
{
spawn->base.frontend = &crypto_aead_type;
- return crypto_grab_spawn(&spawn->base, name, type, mask);
+ return crypto_grab_spawn(&spawn->base, inst, name, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_grab_aead);
@@ -292,6 +288,9 @@ int aead_register_instance(struct crypto_template *tmpl,
{
int err;
+ if (WARN_ON(!inst->free))
+ return -EINVAL;
+
err = aead_prepare_alg(&inst->alg);
if (err)
return err;
diff --git a/crypto/aegis128-core.c b/crypto/aegis128-core.c
index 71c11cb5bad1..44fb4956f0dd 100644
--- a/crypto/aegis128-core.c
+++ b/crypto/aegis128-core.c
@@ -372,10 +372,8 @@ static int crypto_aegis128_setkey(struct crypto_aead *aead, const u8 *key,
{
struct aegis_ctx *ctx = crypto_aead_ctx(aead);
- if (keylen != AEGIS128_KEY_SIZE) {
- crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != AEGIS128_KEY_SIZE)
return -EINVAL;
- }
memcpy(ctx->key.bytes, key, AEGIS128_KEY_SIZE);
return 0;
diff --git a/crypto/aes_generic.c b/crypto/aes_generic.c
index 22e5867177f1..27ab27931813 100644
--- a/crypto/aes_generic.c
+++ b/crypto/aes_generic.c
@@ -1127,24 +1127,18 @@ EXPORT_SYMBOL_GPL(crypto_it_tab);
* @in_key: The input key.
* @key_len: The size of the key.
*
- * Returns 0 on success, on failure the %CRYPTO_TFM_RES_BAD_KEY_LEN flag in tfm
- * is set. The function uses aes_expand_key() to expand the key.
- * &crypto_aes_ctx _must_ be the private data embedded in @tfm which is
- * retrieved with crypto_tfm_ctx().
+ * This function uses aes_expand_key() to expand the key. &crypto_aes_ctx
+ * _must_ be the private data embedded in @tfm which is retrieved with
+ * crypto_tfm_ctx().
+ *
+ * Return: 0 on success; -EINVAL on failure (only happens for bad key lengths)
*/
int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_aes_ctx *ctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
- int ret;
-
- ret = aes_expandkey(ctx, in_key, key_len);
- if (!ret)
- return 0;
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
+ return aes_expandkey(ctx, in_key, key_len);
}
EXPORT_SYMBOL_GPL(crypto_aes_set_key);
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 0dceaabc6321..3d8e53010cda 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -134,11 +134,13 @@ void af_alg_release_parent(struct sock *sk)
sk = ask->parent;
ask = alg_sk(sk);
- lock_sock(sk);
+ local_bh_disable();
+ bh_lock_sock(sk);
ask->nokey_refcnt -= nokey;
if (!last)
last = !--ask->refcnt;
- release_sock(sk);
+ bh_unlock_sock(sk);
+ local_bh_enable();
if (last)
sock_put(sk);
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 3815b363a693..68a0f0cb75c4 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -23,6 +23,8 @@
#include "internal.h"
+static const struct crypto_type crypto_ahash_type;
+
struct ahash_request_priv {
crypto_completion_t complete;
void *data;
@@ -509,6 +511,13 @@ static unsigned int crypto_ahash_extsize(struct crypto_alg *alg)
return crypto_alg_extsize(alg);
}
+static void crypto_ahash_free_instance(struct crypto_instance *inst)
+{
+ struct ahash_instance *ahash = ahash_instance(inst);
+
+ ahash->free(ahash);
+}
+
#ifdef CONFIG_NET
static int crypto_ahash_report(struct sk_buff *skb, struct crypto_alg *alg)
{
@@ -542,9 +551,10 @@ static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
__crypto_hash_alg_common(alg)->digestsize);
}
-const struct crypto_type crypto_ahash_type = {
+static const struct crypto_type crypto_ahash_type = {
.extsize = crypto_ahash_extsize,
.init_tfm = crypto_ahash_init_tfm,
+ .free = crypto_ahash_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_ahash_show,
#endif
@@ -554,7 +564,15 @@ const struct crypto_type crypto_ahash_type = {
.type = CRYPTO_ALG_TYPE_AHASH,
.tfmsize = offsetof(struct crypto_ahash, base),
};
-EXPORT_SYMBOL_GPL(crypto_ahash_type);
+
+int crypto_grab_ahash(struct crypto_ahash_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
+{
+ spawn->base.frontend = &crypto_ahash_type;
+ return crypto_grab_spawn(&spawn->base, inst, name, type, mask);
+}
+EXPORT_SYMBOL_GPL(crypto_grab_ahash);
struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
u32 mask)
@@ -598,9 +616,9 @@ int crypto_register_ahash(struct ahash_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_register_ahash);
-int crypto_unregister_ahash(struct ahash_alg *alg)
+void crypto_unregister_ahash(struct ahash_alg *alg)
{
- return crypto_unregister_alg(&alg->halg.base);
+ crypto_unregister_alg(&alg->halg.base);
}
EXPORT_SYMBOL_GPL(crypto_unregister_ahash);
@@ -638,6 +656,9 @@ int ahash_register_instance(struct crypto_template *tmpl,
{
int err;
+ if (WARN_ON(!inst->free))
+ return -EINVAL;
+
err = ahash_prepare_alg(&inst->alg);
if (err)
return err;
@@ -646,31 +667,6 @@ int ahash_register_instance(struct crypto_template *tmpl,
}
EXPORT_SYMBOL_GPL(ahash_register_instance);
-void ahash_free_instance(struct crypto_instance *inst)
-{
- crypto_drop_spawn(crypto_instance_ctx(inst));
- kfree(ahash_instance(inst));
-}
-EXPORT_SYMBOL_GPL(ahash_free_instance);
-
-int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
- struct hash_alg_common *alg,
- struct crypto_instance *inst)
-{
- return crypto_init_spawn2(&spawn->base, &alg->base, inst,
- &crypto_ahash_type);
-}
-EXPORT_SYMBOL_GPL(crypto_init_ahash_spawn);
-
-struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask)
-{
- struct crypto_alg *alg;
-
- alg = crypto_attr_alg2(rta, &crypto_ahash_type, type, mask);
- return IS_ERR(alg) ? ERR_CAST(alg) : __crypto_hash_alg_common(alg);
-}
-EXPORT_SYMBOL_GPL(ahash_attr_alg);
-
bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg)
{
struct crypto_alg *alg = &halg->base;
diff --git a/crypto/akcipher.c b/crypto/akcipher.c
index 7d5cf4939423..f866085c8a4a 100644
--- a/crypto/akcipher.c
+++ b/crypto/akcipher.c
@@ -90,11 +90,12 @@ static const struct crypto_type crypto_akcipher_type = {
.tfmsize = offsetof(struct crypto_akcipher, base),
};
-int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn, const char *name,
- u32 type, u32 mask)
+int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
{
spawn->base.frontend = &crypto_akcipher_type;
- return crypto_grab_spawn(&spawn->base, name, type, mask);
+ return crypto_grab_spawn(&spawn->base, inst, name, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_grab_akcipher);
@@ -146,6 +147,8 @@ EXPORT_SYMBOL_GPL(crypto_unregister_akcipher);
int akcipher_register_instance(struct crypto_template *tmpl,
struct akcipher_instance *inst)
{
+ if (WARN_ON(!inst->free))
+ return -EINVAL;
akcipher_prepare_alg(&inst->alg);
return crypto_register_instance(tmpl, akcipher_crypto_instance(inst));
}
diff --git a/crypto/algapi.c b/crypto/algapi.c
index b052f38edba6..69605e21af92 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -65,11 +65,6 @@ static int crypto_check_alg(struct crypto_alg *alg)
static void crypto_free_instance(struct crypto_instance *inst)
{
- if (!inst->alg.cra_type->free) {
- inst->tmpl->free(inst);
- return;
- }
-
inst->alg.cra_type->free(inst);
}
@@ -82,6 +77,15 @@ static void crypto_destroy_instance(struct crypto_alg *alg)
crypto_tmpl_put(tmpl);
}
+/*
+ * This function adds a spawn to the list secondary_spawns which
+ * will be used at the end of crypto_remove_spawns to unregister
+ * instances, unless the spawn happens to be one that is depended
+ * on by the new algorithm (nalg in crypto_remove_spawns).
+ *
+ * This function is also responsible for resurrecting any algorithms
+ * in the dependency chain of nalg by unsetting n->dead.
+ */
static struct list_head *crypto_more_spawns(struct crypto_alg *alg,
struct list_head *stack,
struct list_head *top,
@@ -93,15 +97,17 @@ static struct list_head *crypto_more_spawns(struct crypto_alg *alg,
if (!spawn)
return NULL;
- n = list_next_entry(spawn, list);
+ n = list_prev_entry(spawn, list);
+ list_move(&spawn->list, secondary_spawns);
- if (spawn->alg && &n->list != stack && !n->alg)
- n->alg = (n->list.next == stack) ? alg :
- &list_next_entry(n, list)->inst->alg;
+ if (list_is_last(&n->list, stack))
+ return top;
- list_move(&spawn->list, secondary_spawns);
+ n = list_next_entry(n, list);
+ if (!spawn->dead)
+ n->dead = false;
- return &n->list == stack ? top : &n->inst->alg.cra_users;
+ return &n->inst->alg.cra_users;
}
static void crypto_remove_instance(struct crypto_instance *inst,
@@ -113,8 +119,6 @@ static void crypto_remove_instance(struct crypto_instance *inst,
return;
inst->alg.cra_flags |= CRYPTO_ALG_DEAD;
- if (hlist_unhashed(&inst->list))
- return;
if (!tmpl || !crypto_tmpl_get(tmpl))
return;
@@ -126,6 +130,12 @@ static void crypto_remove_instance(struct crypto_instance *inst,
BUG_ON(!list_empty(&inst->alg.cra_users));
}
+/*
+ * Given an algorithm alg, remove all algorithms that depend on it
+ * through spawns. If nalg is not null, then exempt any algorithms
+ * that is depended on by nalg. This is useful when nalg itself
+ * depends on alg.
+ */
void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
struct crypto_alg *nalg)
{
@@ -144,6 +154,11 @@ void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
list_move(&spawn->list, &top);
}
+ /*
+ * Perform a depth-first walk starting from alg through
+ * the cra_users tree. The list stack records the path
+ * from alg to the current spawn.
+ */
spawns = &top;
do {
while (!list_empty(spawns)) {
@@ -153,17 +168,26 @@ void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
list);
inst = spawn->inst;
- BUG_ON(&inst->alg == alg);
-
list_move(&spawn->list, &stack);
+ spawn->dead = !spawn->registered || &inst->alg != nalg;
+
+ if (!spawn->registered)
+ break;
+
+ BUG_ON(&inst->alg == alg);
if (&inst->alg == nalg)
break;
- spawn->alg = NULL;
spawns = &inst->alg.cra_users;
/*
+ * Even if spawn->registered is true, the
+ * instance itself may still be unregistered.
+ * This is because it may have failed during
+ * registration. Therefore we still need to
+ * make the following test.
+ *
* We may encounter an unregistered instance here, since
* an instance's spawns are set up prior to the instance
* being registered. An unregistered instance will have
@@ -178,10 +202,15 @@ void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
} while ((spawns = crypto_more_spawns(alg, &stack, &top,
&secondary_spawns)));
+ /*
+ * Remove all instances that are marked as dead. Also
+ * complete the resurrection of the others by moving them
+ * back to the cra_users list.
+ */
list_for_each_entry_safe(spawn, n, &secondary_spawns, list) {
- if (spawn->alg)
+ if (!spawn->dead)
list_move(&spawn->list, &spawn->alg->cra_users);
- else
+ else if (spawn->registered)
crypto_remove_instance(spawn->inst, list);
}
}
@@ -257,6 +286,7 @@ void crypto_alg_tested(const char *name, int err)
struct crypto_alg *alg;
struct crypto_alg *q;
LIST_HEAD(list);
+ bool best;
down_write(&crypto_alg_sem);
list_for_each_entry(q, &crypto_alg_list, cra_list) {
@@ -280,6 +310,21 @@ found:
alg->cra_flags |= CRYPTO_ALG_TESTED;
+ /* Only satisfy larval waiters if we are the best. */
+ best = true;
+ list_for_each_entry(q, &crypto_alg_list, cra_list) {
+ if (crypto_is_moribund(q) || !crypto_is_larval(q))
+ continue;
+
+ if (strcmp(alg->cra_name, q->cra_name))
+ continue;
+
+ if (q->cra_priority > alg->cra_priority) {
+ best = false;
+ break;
+ }
+ }
+
list_for_each_entry(q, &crypto_alg_list, cra_list) {
if (q == alg)
continue;
@@ -303,10 +348,12 @@ found:
continue;
if ((q->cra_flags ^ alg->cra_flags) & larval->mask)
continue;
- if (!crypto_mod_get(alg))
- continue;
- larval->adult = alg;
+ if (best && crypto_mod_get(alg))
+ larval->adult = alg;
+ else
+ larval->adult = ERR_PTR(-EAGAIN);
+
continue;
}
@@ -397,7 +444,7 @@ static int crypto_remove_alg(struct crypto_alg *alg, struct list_head *list)
return 0;
}
-int crypto_unregister_alg(struct crypto_alg *alg)
+void crypto_unregister_alg(struct crypto_alg *alg)
{
int ret;
LIST_HEAD(list);
@@ -406,15 +453,14 @@ int crypto_unregister_alg(struct crypto_alg *alg)
ret = crypto_remove_alg(alg, &list);
up_write(&crypto_alg_sem);
- if (ret)
- return ret;
+ if (WARN(ret, "Algorithm %s is not registered", alg->cra_driver_name))
+ return;
BUG_ON(refcount_read(&alg->cra_refcnt) != 1);
if (alg->cra_destroy)
alg->cra_destroy(alg);
crypto_remove_final(&list);
- return 0;
}
EXPORT_SYMBOL_GPL(crypto_unregister_alg);
@@ -438,18 +484,12 @@ err:
}
EXPORT_SYMBOL_GPL(crypto_register_algs);
-int crypto_unregister_algs(struct crypto_alg *algs, int count)
+void crypto_unregister_algs(struct crypto_alg *algs, int count)
{
- int i, ret;
-
- for (i = 0; i < count; i++) {
- ret = crypto_unregister_alg(&algs[i]);
- if (ret)
- pr_err("Failed to unregister %s %s: %d\n",
- algs[i].cra_driver_name, algs[i].cra_name, ret);
- }
+ int i;
- return 0;
+ for (i = 0; i < count; i++)
+ crypto_unregister_alg(&algs[i]);
}
EXPORT_SYMBOL_GPL(crypto_unregister_algs);
@@ -561,6 +601,7 @@ int crypto_register_instance(struct crypto_template *tmpl,
struct crypto_instance *inst)
{
struct crypto_larval *larval;
+ struct crypto_spawn *spawn;
int err;
err = crypto_check_alg(&inst->alg);
@@ -572,6 +613,22 @@ int crypto_register_instance(struct crypto_template *tmpl,
down_write(&crypto_alg_sem);
+ larval = ERR_PTR(-EAGAIN);
+ for (spawn = inst->spawns; spawn;) {
+ struct crypto_spawn *next;
+
+ if (spawn->dead)
+ goto unlock;
+
+ next = spawn->next;
+ spawn->inst = inst;
+ spawn->registered = true;
+
+ crypto_mod_put(spawn->alg);
+
+ spawn = next;
+ }
+
larval = __crypto_register_alg(&inst->alg);
if (IS_ERR(larval))
goto unlock;
@@ -594,7 +651,7 @@ err:
}
EXPORT_SYMBOL_GPL(crypto_register_instance);
-int crypto_unregister_instance(struct crypto_instance *inst)
+void crypto_unregister_instance(struct crypto_instance *inst)
{
LIST_HEAD(list);
@@ -606,97 +663,70 @@ int crypto_unregister_instance(struct crypto_instance *inst)
up_write(&crypto_alg_sem);
crypto_remove_final(&list);
-
- return 0;
}
EXPORT_SYMBOL_GPL(crypto_unregister_instance);
-int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
- struct crypto_instance *inst, u32 mask)
+int crypto_grab_spawn(struct crypto_spawn *spawn, struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
{
+ struct crypto_alg *alg;
int err = -EAGAIN;
if (WARN_ON_ONCE(inst == NULL))
return -EINVAL;
- spawn->inst = inst;
- spawn->mask = mask;
+ /* Allow the result of crypto_attr_alg_name() to be passed directly */
+ if (IS_ERR(name))
+ return PTR_ERR(name);
+
+ alg = crypto_find_alg(name, spawn->frontend, type, mask);
+ if (IS_ERR(alg))
+ return PTR_ERR(alg);
down_write(&crypto_alg_sem);
if (!crypto_is_moribund(alg)) {
list_add(&spawn->list, &alg->cra_users);
spawn->alg = alg;
+ spawn->mask = mask;
+ spawn->next = inst->spawns;
+ inst->spawns = spawn;
err = 0;
}
up_write(&crypto_alg_sem);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(crypto_init_spawn);
-
-int crypto_init_spawn2(struct crypto_spawn *spawn, struct crypto_alg *alg,
- struct crypto_instance *inst,
- const struct crypto_type *frontend)
-{
- int err = -EINVAL;
-
- if ((alg->cra_flags ^ frontend->type) & frontend->maskset)
- goto out;
-
- spawn->frontend = frontend;
- err = crypto_init_spawn(spawn, alg, inst, frontend->maskset);
-
-out:
- return err;
-}
-EXPORT_SYMBOL_GPL(crypto_init_spawn2);
-
-int crypto_grab_spawn(struct crypto_spawn *spawn, const char *name,
- u32 type, u32 mask)
-{
- struct crypto_alg *alg;
- int err;
-
- alg = crypto_find_alg(name, spawn->frontend, type, mask);
- if (IS_ERR(alg))
- return PTR_ERR(alg);
-
- err = crypto_init_spawn(spawn, alg, spawn->inst, mask);
- crypto_mod_put(alg);
+ if (err)
+ crypto_mod_put(alg);
return err;
}
EXPORT_SYMBOL_GPL(crypto_grab_spawn);
void crypto_drop_spawn(struct crypto_spawn *spawn)
{
- if (!spawn->alg)
+ if (!spawn->alg) /* not yet initialized? */
return;
down_write(&crypto_alg_sem);
- list_del(&spawn->list);
+ if (!spawn->dead)
+ list_del(&spawn->list);
up_write(&crypto_alg_sem);
+
+ if (!spawn->registered)
+ crypto_mod_put(spawn->alg);
}
EXPORT_SYMBOL_GPL(crypto_drop_spawn);
static struct crypto_alg *crypto_spawn_alg(struct crypto_spawn *spawn)
{
struct crypto_alg *alg;
- struct crypto_alg *alg2;
down_read(&crypto_alg_sem);
alg = spawn->alg;
- alg2 = alg;
- if (alg2)
- alg2 = crypto_mod_get(alg2);
- up_read(&crypto_alg_sem);
-
- if (!alg2) {
- if (alg)
- crypto_shoot_alg(alg);
- return ERR_PTR(-EAGAIN);
+ if (!spawn->dead && !crypto_mod_get(alg)) {
+ alg->cra_flags |= CRYPTO_ALG_DYING;
+ alg = NULL;
}
+ up_read(&crypto_alg_sem);
- return alg;
+ return alg ?: ERR_PTR(-EAGAIN);
}
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn, u32 type,
@@ -809,20 +839,6 @@ const char *crypto_attr_alg_name(struct rtattr *rta)
}
EXPORT_SYMBOL_GPL(crypto_attr_alg_name);
-struct crypto_alg *crypto_attr_alg2(struct rtattr *rta,
- const struct crypto_type *frontend,
- u32 type, u32 mask)
-{
- const char *name;
-
- name = crypto_attr_alg_name(rta);
- if (IS_ERR(name))
- return ERR_CAST(name);
-
- return crypto_find_alg(name, frontend, type, mask);
-}
-EXPORT_SYMBOL_GPL(crypto_attr_alg2);
-
int crypto_attr_u32(struct rtattr *rta, u32 *num)
{
struct crypto_attr_u32 *nu32;
@@ -856,32 +872,6 @@ int crypto_inst_setname(struct crypto_instance *inst, const char *name,
}
EXPORT_SYMBOL_GPL(crypto_inst_setname);
-void *crypto_alloc_instance(const char *name, struct crypto_alg *alg,
- unsigned int head)
-{
- struct crypto_instance *inst;
- char *p;
- int err;
-
- p = kzalloc(head + sizeof(*inst) + sizeof(struct crypto_spawn),
- GFP_KERNEL);
- if (!p)
- return ERR_PTR(-ENOMEM);
-
- inst = (void *)(p + head);
-
- err = crypto_inst_setname(inst, name, alg);
- if (err)
- goto err_free_inst;
-
- return p;
-
-err_free_inst:
- kfree(p);
- return ERR_PTR(err);
-}
-EXPORT_SYMBOL_GPL(crypto_alloc_instance);
-
void crypto_init_queue(struct crypto_queue *queue, unsigned int max_qlen)
{
INIT_LIST_HEAD(&queue->list);
diff --git a/crypto/algboss.c b/crypto/algboss.c
index a62149d6c839..535f1f87e6c1 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -58,7 +58,6 @@ static int cryptomgr_probe(void *data)
{
struct cryptomgr_param *param = data;
struct crypto_template *tmpl;
- struct crypto_instance *inst;
int err;
tmpl = crypto_lookup_template(param->template);
@@ -66,16 +65,7 @@ static int cryptomgr_probe(void *data)
goto out;
do {
- if (tmpl->create) {
- err = tmpl->create(tmpl, param->tb);
- continue;
- }
-
- inst = tmpl->alloc(param->tb);
- if (IS_ERR(inst))
- err = PTR_ERR(inst);
- else if ((err = crypto_register_instance(tmpl, inst)))
- tmpl->free(inst);
+ err = tmpl->create(tmpl, param->tb);
} while (err == -EAGAIN && !signal_pending(current));
crypto_tmpl_put(tmpl);
diff --git a/crypto/anubis.c b/crypto/anubis.c
index f9ce78fde6ee..5da0241ef453 100644
--- a/crypto/anubis.c
+++ b/crypto/anubis.c
@@ -464,7 +464,6 @@ static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key,
{
struct anubis_ctx *ctx = crypto_tfm_ctx(tfm);
const __be32 *key = (const __be32 *)in_key;
- u32 *flags = &tfm->crt_flags;
int N, R, i, r;
u32 kappa[ANUBIS_MAX_N];
u32 inter[ANUBIS_MAX_N];
@@ -474,7 +473,6 @@ static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key,
case 32: case 36: case 40:
break;
default:
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL;
}
diff --git a/crypto/api.c b/crypto/api.c
index 55bca28df92d..7d71a9b10e5f 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -97,7 +97,7 @@ static void crypto_larval_destroy(struct crypto_alg *alg)
struct crypto_larval *larval = (void *)alg;
BUG_ON(!crypto_is_larval(alg));
- if (larval->adult)
+ if (!IS_ERR_OR_NULL(larval->adult))
crypto_mod_put(larval->adult);
kfree(larval);
}
@@ -178,6 +178,8 @@ static struct crypto_alg *crypto_larval_wait(struct crypto_alg *alg)
alg = ERR_PTR(-ETIMEDOUT);
else if (!alg)
alg = ERR_PTR(-ENOENT);
+ else if (IS_ERR(alg))
+ ;
else if (crypto_is_test_larval(larval) &&
!(alg->cra_flags & CRYPTO_ALG_TESTED))
alg = ERR_PTR(-EAGAIN);
@@ -295,20 +297,7 @@ static int crypto_init_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
if (type_obj)
return type_obj->init(tfm, type, mask);
-
- switch (crypto_tfm_alg_type(tfm)) {
- case CRYPTO_ALG_TYPE_CIPHER:
- return crypto_init_cipher_ops(tfm);
-
- case CRYPTO_ALG_TYPE_COMPRESS:
- return crypto_init_compress_ops(tfm);
-
- default:
- break;
- }
-
- BUG();
- return -EINVAL;
+ return 0;
}
static void crypto_exit_ops(struct crypto_tfm *tfm)
@@ -344,13 +333,12 @@ static unsigned int crypto_ctxsize(struct crypto_alg *alg, u32 type, u32 mask)
return len;
}
-void crypto_shoot_alg(struct crypto_alg *alg)
+static void crypto_shoot_alg(struct crypto_alg *alg)
{
down_write(&crypto_alg_sem);
alg->cra_flags |= CRYPTO_ALG_DYING;
up_write(&crypto_alg_sem);
}
-EXPORT_SYMBOL_GPL(crypto_shoot_alg);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
u32 mask)
@@ -516,7 +504,7 @@ EXPORT_SYMBOL_GPL(crypto_find_alg);
*
* The returned transform is of a non-determinate type. Most people
* should use one of the more specific allocation functions such as
- * crypto_alloc_blkcipher.
+ * crypto_alloc_skcipher().
*
* In case of error the return value is an error pointer.
*/
diff --git a/crypto/asymmetric_keys/asym_tpm.c b/crypto/asymmetric_keys/asym_tpm.c
index d16d893bd195..378b18b9bc34 100644
--- a/crypto/asymmetric_keys/asym_tpm.c
+++ b/crypto/asymmetric_keys/asym_tpm.c
@@ -470,6 +470,7 @@ static int tpm_key_encrypt(struct tpm_key *tk,
if (ret < 0)
goto error_free_tfm;
+ ret = -ENOMEM;
req = akcipher_request_alloc(tfm, GFP_KERNEL);
if (!req)
goto error_free_tfm;
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index 364b9df9d631..d7f43d4ea925 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -184,6 +184,7 @@ static int software_key_eds_op(struct kernel_pkey_params *params,
if (IS_ERR(tfm))
return PTR_ERR(tfm);
+ ret = -ENOMEM;
req = akcipher_request_alloc(tfm, GFP_KERNEL);
if (!req)
goto error_free_tfm;
diff --git a/crypto/authenc.c b/crypto/authenc.c
index 3f0ed9402582..775e7138fd10 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -91,15 +91,12 @@ static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
int err = -EINVAL;
if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
- goto badkey;
+ goto out;
crypto_ahash_clear_flags(auth, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(auth, crypto_aead_get_flags(authenc) &
CRYPTO_TFM_REQ_MASK);
err = crypto_ahash_setkey(auth, keys.authkey, keys.authkeylen);
- crypto_aead_set_flags(authenc, crypto_ahash_get_flags(auth) &
- CRYPTO_TFM_RES_MASK);
-
if (err)
goto out;
@@ -107,16 +104,9 @@ static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
crypto_skcipher_set_flags(enc, crypto_aead_get_flags(authenc) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(enc, keys.enckey, keys.enckeylen);
- crypto_aead_set_flags(authenc, crypto_skcipher_get_flags(enc) &
- CRYPTO_TFM_RES_MASK);
-
out:
memzero_explicit(&keys, sizeof(keys));
return err;
-
-badkey:
- crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
- goto out;
}
static void authenc_geniv_ahash_done(struct crypto_async_request *areq, int err)
@@ -383,12 +373,12 @@ static int crypto_authenc_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
+ struct authenc_instance_ctx *ctx;
struct hash_alg_common *auth;
struct crypto_alg *auth_base;
struct skcipher_alg *enc;
- struct authenc_instance_ctx *ctx;
- const char *enc_name;
int err;
algt = crypto_get_attr_type(tb);
@@ -398,38 +388,24 @@ static int crypto_authenc_create(struct crypto_template *tmpl,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
- auth = ahash_attr_alg(tb[1], CRYPTO_ALG_TYPE_HASH,
- CRYPTO_ALG_TYPE_AHASH_MASK |
- crypto_requires_sync(algt->type, algt->mask));
- if (IS_ERR(auth))
- return PTR_ERR(auth);
-
- auth_base = &auth->base;
-
- enc_name = crypto_attr_alg_name(tb[2]);
- err = PTR_ERR(enc_name);
- if (IS_ERR(enc_name))
- goto out_put_auth;
+ mask = crypto_requires_sync(algt->type, algt->mask);
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
- err = -ENOMEM;
if (!inst)
- goto out_put_auth;
-
+ return -ENOMEM;
ctx = aead_instance_ctx(inst);
- err = crypto_init_ahash_spawn(&ctx->auth, auth,
- aead_crypto_instance(inst));
+ err = crypto_grab_ahash(&ctx->auth, aead_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, mask);
if (err)
goto err_free_inst;
+ auth = crypto_spawn_ahash_alg(&ctx->auth);
+ auth_base = &auth->base;
- crypto_set_skcipher_spawn(&ctx->enc, aead_crypto_instance(inst));
- err = crypto_grab_skcipher(&ctx->enc, enc_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(&ctx->enc, aead_crypto_instance(inst),
+ crypto_attr_alg_name(tb[2]), 0, mask);
if (err)
- goto err_drop_auth;
-
+ goto err_free_inst;
enc = crypto_spawn_skcipher_alg(&ctx->enc);
ctx->reqoff = ALIGN(2 * auth->digestsize + auth_base->cra_alignmask,
@@ -440,12 +416,12 @@ static int crypto_authenc_create(struct crypto_template *tmpl,
"authenc(%s,%s)", auth_base->cra_name,
enc->base.cra_name) >=
CRYPTO_MAX_ALG_NAME)
- goto err_drop_enc;
+ goto err_free_inst;
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"authenc(%s,%s)", auth_base->cra_driver_name,
enc->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
- goto err_drop_enc;
+ goto err_free_inst;
inst->alg.base.cra_flags = (auth_base->cra_flags |
enc->base.cra_flags) & CRYPTO_ALG_ASYNC;
@@ -470,21 +446,11 @@ static int crypto_authenc_create(struct crypto_template *tmpl,
inst->free = crypto_authenc_free;
err = aead_register_instance(tmpl, inst);
- if (err)
- goto err_drop_enc;
-
-out:
- crypto_mod_put(auth_base);
- return err;
-
-err_drop_enc:
- crypto_drop_skcipher(&ctx->enc);
-err_drop_auth:
- crypto_drop_ahash(&ctx->auth);
+ if (err) {
err_free_inst:
- kfree(inst);
-out_put_auth:
- goto out;
+ crypto_authenc_free(inst);
+ }
+ return err;
}
static struct crypto_template crypto_authenc_tmpl = {
diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index adb7554fca29..589008146fce 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -65,15 +65,12 @@ static int crypto_authenc_esn_setkey(struct crypto_aead *authenc_esn, const u8 *
int err = -EINVAL;
if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
- goto badkey;
+ goto out;
crypto_ahash_clear_flags(auth, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(auth, crypto_aead_get_flags(authenc_esn) &
CRYPTO_TFM_REQ_MASK);
err = crypto_ahash_setkey(auth, keys.authkey, keys.authkeylen);
- crypto_aead_set_flags(authenc_esn, crypto_ahash_get_flags(auth) &
- CRYPTO_TFM_RES_MASK);
-
if (err)
goto out;
@@ -81,16 +78,9 @@ static int crypto_authenc_esn_setkey(struct crypto_aead *authenc_esn, const u8 *
crypto_skcipher_set_flags(enc, crypto_aead_get_flags(authenc_esn) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(enc, keys.enckey, keys.enckeylen);
- crypto_aead_set_flags(authenc_esn, crypto_skcipher_get_flags(enc) &
- CRYPTO_TFM_RES_MASK);
-
out:
memzero_explicit(&keys, sizeof(keys));
return err;
-
-badkey:
- crypto_aead_set_flags(authenc_esn, CRYPTO_TFM_RES_BAD_KEY_LEN);
- goto out;
}
static int crypto_authenc_esn_genicv_tail(struct aead_request *req,
@@ -401,12 +391,12 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
+ struct authenc_esn_instance_ctx *ctx;
struct hash_alg_common *auth;
struct crypto_alg *auth_base;
struct skcipher_alg *enc;
- struct authenc_esn_instance_ctx *ctx;
- const char *enc_name;
int err;
algt = crypto_get_attr_type(tb);
@@ -416,50 +406,36 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
- auth = ahash_attr_alg(tb[1], CRYPTO_ALG_TYPE_HASH,
- CRYPTO_ALG_TYPE_AHASH_MASK |
- crypto_requires_sync(algt->type, algt->mask));
- if (IS_ERR(auth))
- return PTR_ERR(auth);
-
- auth_base = &auth->base;
-
- enc_name = crypto_attr_alg_name(tb[2]);
- err = PTR_ERR(enc_name);
- if (IS_ERR(enc_name))
- goto out_put_auth;
+ mask = crypto_requires_sync(algt->type, algt->mask);
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
- err = -ENOMEM;
if (!inst)
- goto out_put_auth;
-
+ return -ENOMEM;
ctx = aead_instance_ctx(inst);
- err = crypto_init_ahash_spawn(&ctx->auth, auth,
- aead_crypto_instance(inst));
+ err = crypto_grab_ahash(&ctx->auth, aead_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, mask);
if (err)
goto err_free_inst;
+ auth = crypto_spawn_ahash_alg(&ctx->auth);
+ auth_base = &auth->base;
- crypto_set_skcipher_spawn(&ctx->enc, aead_crypto_instance(inst));
- err = crypto_grab_skcipher(&ctx->enc, enc_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(&ctx->enc, aead_crypto_instance(inst),
+ crypto_attr_alg_name(tb[2]), 0, mask);
if (err)
- goto err_drop_auth;
-
+ goto err_free_inst;
enc = crypto_spawn_skcipher_alg(&ctx->enc);
err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"authencesn(%s,%s)", auth_base->cra_name,
enc->base.cra_name) >= CRYPTO_MAX_ALG_NAME)
- goto err_drop_enc;
+ goto err_free_inst;
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"authencesn(%s,%s)", auth_base->cra_driver_name,
enc->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
- goto err_drop_enc;
+ goto err_free_inst;
inst->alg.base.cra_flags = (auth_base->cra_flags |
enc->base.cra_flags) & CRYPTO_ALG_ASYNC;
@@ -485,21 +461,11 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
inst->free = crypto_authenc_esn_free,
err = aead_register_instance(tmpl, inst);
- if (err)
- goto err_drop_enc;
-
-out:
- crypto_mod_put(auth_base);
- return err;
-
-err_drop_enc:
- crypto_drop_skcipher(&ctx->enc);
-err_drop_auth:
- crypto_drop_ahash(&ctx->auth);
+ if (err) {
err_free_inst:
- kfree(inst);
-out_put_auth:
- goto out;
+ crypto_authenc_esn_free(inst);
+ }
+ return err;
}
static struct crypto_template crypto_authenc_esn_tmpl = {
diff --git a/crypto/blake2b_generic.c b/crypto/blake2b_generic.c
index d04b1788dc42..1d262374fa4e 100644
--- a/crypto/blake2b_generic.c
+++ b/crypto/blake2b_generic.c
@@ -147,10 +147,8 @@ static int blake2b_setkey(struct crypto_shash *tfm, const u8 *key,
{
struct blake2b_tfm_ctx *tctx = crypto_shash_ctx(tfm);
- if (keylen == 0 || keylen > BLAKE2B_KEYBYTES) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen == 0 || keylen > BLAKE2B_KEYBYTES)
return -EINVAL;
- }
memcpy(tctx->key, key, keylen);
tctx->keylen = keylen;
diff --git a/crypto/blake2s_generic.c b/crypto/blake2s_generic.c
index ed0c74640470..005783ff45ad 100644
--- a/crypto/blake2s_generic.c
+++ b/crypto/blake2s_generic.c
@@ -17,10 +17,8 @@ static int crypto_blake2s_setkey(struct crypto_shash *tfm, const u8 *key,
{
struct blake2s_tfm_ctx *tctx = crypto_shash_ctx(tfm);
- if (keylen == 0 || keylen > BLAKE2S_KEY_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen == 0 || keylen > BLAKE2S_KEY_SIZE)
return -EINVAL;
- }
memcpy(tctx->key, key, keylen);
tctx->keylen = keylen;
diff --git a/crypto/camellia_generic.c b/crypto/camellia_generic.c
index b6a1121e2478..9a5783e5196a 100644
--- a/crypto/camellia_generic.c
+++ b/crypto/camellia_generic.c
@@ -970,12 +970,9 @@ camellia_set_key(struct crypto_tfm *tfm, const u8 *in_key,
{
struct camellia_ctx *cctx = crypto_tfm_ctx(tfm);
const unsigned char *key = (const unsigned char *)in_key;
- u32 *flags = &tfm->crt_flags;
- if (key_len != 16 && key_len != 24 && key_len != 32) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ if (key_len != 16 && key_len != 24 && key_len != 32)
return -EINVAL;
- }
cctx->key_length = key_len;
diff --git a/crypto/cast6_generic.c b/crypto/cast6_generic.c
index a8248f8e2777..c77ff6c8a2b2 100644
--- a/crypto/cast6_generic.c
+++ b/crypto/cast6_generic.c
@@ -103,17 +103,14 @@ static inline void W(u32 *key, unsigned int i)
key[7] ^= F2(key[0], Tr[i % 4][7], Tm[i][7]);
}
-int __cast6_setkey(struct cast6_ctx *c, const u8 *in_key,
- unsigned key_len, u32 *flags)
+int __cast6_setkey(struct cast6_ctx *c, const u8 *in_key, unsigned int key_len)
{
int i;
u32 key[8];
__be32 p_key[8]; /* padded key */
- if (key_len % 4 != 0) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ if (key_len % 4 != 0)
return -EINVAL;
- }
memset(p_key, 0, 32);
memcpy(p_key, in_key, key_len);
@@ -148,13 +145,12 @@ EXPORT_SYMBOL_GPL(__cast6_setkey);
int cast6_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
{
- return __cast6_setkey(crypto_tfm_ctx(tfm), key, keylen,
- &tfm->crt_flags);
+ return __cast6_setkey(crypto_tfm_ctx(tfm), key, keylen);
}
EXPORT_SYMBOL_GPL(cast6_setkey);
/*forward quad round*/
-static inline void Q(u32 *block, u8 *Kr, u32 *Km)
+static inline void Q(u32 *block, const u8 *Kr, const u32 *Km)
{
u32 I;
block[2] ^= F1(block[3], Kr[0], Km[0]);
@@ -164,7 +160,7 @@ static inline void Q(u32 *block, u8 *Kr, u32 *Km)
}
/*reverse quad round*/
-static inline void QBAR(u32 *block, u8 *Kr, u32 *Km)
+static inline void QBAR(u32 *block, const u8 *Kr, const u32 *Km)
{
u32 I;
block[3] ^= F1(block[0], Kr[3], Km[3]);
@@ -173,13 +169,14 @@ static inline void QBAR(u32 *block, u8 *Kr, u32 *Km)
block[2] ^= F1(block[3], Kr[0], Km[0]);
}
-void __cast6_encrypt(struct cast6_ctx *c, u8 *outbuf, const u8 *inbuf)
+void __cast6_encrypt(const void *ctx, u8 *outbuf, const u8 *inbuf)
{
+ const struct cast6_ctx *c = ctx;
const __be32 *src = (const __be32 *)inbuf;
__be32 *dst = (__be32 *)outbuf;
u32 block[4];
- u32 *Km;
- u8 *Kr;
+ const u32 *Km;
+ const u8 *Kr;
block[0] = be32_to_cpu(src[0]);
block[1] = be32_to_cpu(src[1]);
@@ -211,13 +208,14 @@ static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf)
__cast6_encrypt(crypto_tfm_ctx(tfm), outbuf, inbuf);
}
-void __cast6_decrypt(struct cast6_ctx *c, u8 *outbuf, const u8 *inbuf)
+void __cast6_decrypt(const void *ctx, u8 *outbuf, const u8 *inbuf)
{
+ const struct cast6_ctx *c = ctx;
const __be32 *src = (const __be32 *)inbuf;
__be32 *dst = (__be32 *)outbuf;
u32 block[4];
- u32 *Km;
- u8 *Kr;
+ const u32 *Km;
+ const u8 *Kr;
block[0] = be32_to_cpu(src[0]);
block[1] = be32_to_cpu(src[1]);
diff --git a/crypto/cbc.c b/crypto/cbc.c
index dd96bcf4d4b6..e6f6273a7d39 100644
--- a/crypto/cbc.c
+++ b/crypto/cbc.c
@@ -54,10 +54,12 @@ static int crypto_cbc_create(struct crypto_template *tmpl, struct rtattr **tb)
struct crypto_alg *alg;
int err;
- inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
+ inst = skcipher_alloc_instance_simple(tmpl, tb);
if (IS_ERR(inst))
return PTR_ERR(inst);
+ alg = skcipher_ialg_simple(inst);
+
err = -EINVAL;
if (!is_power_of_2(alg->cra_blocksize))
goto out_free_inst;
@@ -66,14 +68,11 @@ static int crypto_cbc_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.decrypt = crypto_cbc_decrypt;
err = skcipher_register_instance(tmpl, inst);
- if (err)
- goto out_free_inst;
- goto out_put_alg;
-
+ if (err) {
out_free_inst:
- inst->free(inst);
-out_put_alg:
- crypto_mod_put(alg);
+ inst->free(inst);
+ }
+
return err;
}
diff --git a/crypto/ccm.c b/crypto/ccm.c
index 380eb619f657..241ecdc5c4e0 100644
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -15,8 +15,6 @@
#include <linux/module.h>
#include <linux/slab.h>
-#include "internal.h"
-
struct ccm_instance_ctx {
struct crypto_skcipher_spawn ctr;
struct crypto_ahash_spawn mac;
@@ -91,26 +89,19 @@ static int crypto_ccm_setkey(struct crypto_aead *aead, const u8 *key,
struct crypto_ccm_ctx *ctx = crypto_aead_ctx(aead);
struct crypto_skcipher *ctr = ctx->ctr;
struct crypto_ahash *mac = ctx->mac;
- int err = 0;
+ int err;
crypto_skcipher_clear_flags(ctr, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(ctr, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(ctr, key, keylen);
- crypto_aead_set_flags(aead, crypto_skcipher_get_flags(ctr) &
- CRYPTO_TFM_RES_MASK);
if (err)
- goto out;
+ return err;
crypto_ahash_clear_flags(mac, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(mac, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_ahash_setkey(mac, key, keylen);
- crypto_aead_set_flags(aead, crypto_ahash_get_flags(mac) &
- CRYPTO_TFM_RES_MASK);
-
-out:
- return err;
+ return crypto_ahash_setkey(mac, key, keylen);
}
static int crypto_ccm_setauthsize(struct crypto_aead *tfm,
@@ -457,11 +448,11 @@ static int crypto_ccm_create_common(struct crypto_template *tmpl,
const char *mac_name)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
+ struct ccm_instance_ctx *ictx;
struct skcipher_alg *ctr;
- struct crypto_alg *mac_alg;
struct hash_alg_common *mac;
- struct ccm_instance_ctx *ictx;
int err;
algt = crypto_get_attr_type(tb);
@@ -471,37 +462,28 @@ static int crypto_ccm_create_common(struct crypto_template *tmpl,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
- mac_alg = crypto_find_alg(mac_name, &crypto_ahash_type,
- CRYPTO_ALG_TYPE_HASH,
- CRYPTO_ALG_TYPE_AHASH_MASK |
- CRYPTO_ALG_ASYNC);
- if (IS_ERR(mac_alg))
- return PTR_ERR(mac_alg);
-
- mac = __crypto_hash_alg_common(mac_alg);
- err = -EINVAL;
- if (strncmp(mac->base.cra_name, "cbcmac(", 7) != 0 ||
- mac->digestsize != 16)
- goto out_put_mac;
+ mask = crypto_requires_sync(algt->type, algt->mask);
inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
- err = -ENOMEM;
if (!inst)
- goto out_put_mac;
-
+ return -ENOMEM;
ictx = aead_instance_ctx(inst);
- err = crypto_init_ahash_spawn(&ictx->mac, mac,
- aead_crypto_instance(inst));
+
+ err = crypto_grab_ahash(&ictx->mac, aead_crypto_instance(inst),
+ mac_name, 0, CRYPTO_ALG_ASYNC);
if (err)
goto err_free_inst;
+ mac = crypto_spawn_ahash_alg(&ictx->mac);
- crypto_set_skcipher_spawn(&ictx->ctr, aead_crypto_instance(inst));
- err = crypto_grab_skcipher(&ictx->ctr, ctr_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
- if (err)
- goto err_drop_mac;
+ err = -EINVAL;
+ if (strncmp(mac->base.cra_name, "cbcmac(", 7) != 0 ||
+ mac->digestsize != 16)
+ goto err_free_inst;
+ err = crypto_grab_skcipher(&ictx->ctr, aead_crypto_instance(inst),
+ ctr_name, 0, mask);
+ if (err)
+ goto err_free_inst;
ctr = crypto_spawn_skcipher_alg(&ictx->ctr);
/* The skcipher algorithm must be CTR mode, using 16-byte blocks. */
@@ -509,21 +491,21 @@ static int crypto_ccm_create_common(struct crypto_template *tmpl,
if (strncmp(ctr->base.cra_name, "ctr(", 4) != 0 ||
crypto_skcipher_alg_ivsize(ctr) != 16 ||
ctr->base.cra_blocksize != 1)
- goto err_drop_ctr;
+ goto err_free_inst;
/* ctr and cbcmac must use the same underlying block cipher. */
if (strcmp(ctr->base.cra_name + 4, mac->base.cra_name + 7) != 0)
- goto err_drop_ctr;
+ goto err_free_inst;
err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"ccm(%s", ctr->base.cra_name + 4) >= CRYPTO_MAX_ALG_NAME)
- goto err_drop_ctr;
+ goto err_free_inst;
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"ccm_base(%s,%s)", ctr->base.cra_driver_name,
mac->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
- goto err_drop_ctr;
+ goto err_free_inst;
inst->alg.base.cra_flags = ctr->base.cra_flags & CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = (mac->base.cra_priority +
@@ -545,20 +527,11 @@ static int crypto_ccm_create_common(struct crypto_template *tmpl,
inst->free = crypto_ccm_free;
err = aead_register_instance(tmpl, inst);
- if (err)
- goto err_drop_ctr;
-
-out_put_mac:
- crypto_mod_put(mac_alg);
- return err;
-
-err_drop_ctr:
- crypto_drop_skcipher(&ictx->ctr);
-err_drop_mac:
- crypto_drop_ahash(&ictx->mac);
+ if (err) {
err_free_inst:
- kfree(inst);
- goto out_put_mac;
+ crypto_ccm_free(inst);
+ }
+ return err;
}
static int crypto_ccm_create(struct crypto_template *tmpl, struct rtattr **tb)
@@ -604,7 +577,6 @@ static int crypto_rfc4309_setkey(struct crypto_aead *parent, const u8 *key,
{
struct crypto_rfc4309_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_aead *child = ctx->child;
- int err;
if (keylen < 3)
return -EINVAL;
@@ -615,11 +587,7 @@ static int crypto_rfc4309_setkey(struct crypto_aead *parent, const u8 *key,
crypto_aead_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(child, crypto_aead_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_aead_setkey(child, key, keylen);
- crypto_aead_set_flags(parent, crypto_aead_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_aead_setkey(child, key, keylen);
}
static int crypto_rfc4309_setauthsize(struct crypto_aead *parent,
@@ -745,6 +713,7 @@ static int crypto_rfc4309_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
struct crypto_aead_spawn *spawn;
struct aead_alg *alg;
@@ -758,6 +727,8 @@ static int crypto_rfc4309_create(struct crypto_template *tmpl,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
+ mask = crypto_requires_sync(algt->type, algt->mask);
+
ccm_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(ccm_name))
return PTR_ERR(ccm_name);
@@ -767,9 +738,8 @@ static int crypto_rfc4309_create(struct crypto_template *tmpl,
return -ENOMEM;
spawn = aead_instance_ctx(inst);
- crypto_set_aead_spawn(spawn, aead_crypto_instance(inst));
- err = crypto_grab_aead(spawn, ccm_name, 0,
- crypto_requires_sync(algt->type, algt->mask));
+ err = crypto_grab_aead(spawn, aead_crypto_instance(inst),
+ ccm_name, 0, mask);
if (err)
goto out_free_inst;
@@ -896,7 +866,7 @@ static int cbcmac_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_cipher *cipher;
struct crypto_instance *inst = (void *)tfm->__crt_alg;
- struct crypto_spawn *spawn = crypto_instance_ctx(inst);
+ struct crypto_cipher_spawn *spawn = crypto_instance_ctx(inst);
struct cbcmac_tfm_ctx *ctx = crypto_tfm_ctx(tfm);
cipher = crypto_spawn_cipher(spawn);
@@ -917,6 +887,7 @@ static void cbcmac_exit_tfm(struct crypto_tfm *tfm)
static int cbcmac_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct shash_instance *inst;
+ struct crypto_cipher_spawn *spawn;
struct crypto_alg *alg;
int err;
@@ -924,21 +895,20 @@ static int cbcmac_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
return err;
- alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
- CRYPTO_ALG_TYPE_MASK);
- if (IS_ERR(alg))
- return PTR_ERR(alg);
+ inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ spawn = shash_instance_ctx(inst);
- inst = shash_alloc_instance("cbcmac", alg);
- err = PTR_ERR(inst);
- if (IS_ERR(inst))
- goto out_put_alg;
+ err = crypto_grab_cipher(spawn, shash_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, 0);
+ if (err)
+ goto err_free_inst;
+ alg = crypto_spawn_cipher_alg(spawn);
- err = crypto_init_spawn(shash_instance_ctx(inst), alg,
- shash_crypto_instance(inst),
- CRYPTO_ALG_TYPE_MASK);
+ err = crypto_inst_setname(shash_crypto_instance(inst), tmpl->name, alg);
if (err)
- goto out_free_inst;
+ goto err_free_inst;
inst->alg.base.cra_priority = alg->cra_priority;
inst->alg.base.cra_blocksize = 1;
@@ -957,14 +927,13 @@ static int cbcmac_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.final = crypto_cbcmac_digest_final;
inst->alg.setkey = crypto_cbcmac_digest_setkey;
- err = shash_register_instance(tmpl, inst);
+ inst->free = shash_free_singlespawn_instance;
-out_free_inst:
- if (err)
- shash_free_instance(shash_crypto_instance(inst));
-
-out_put_alg:
- crypto_mod_put(alg);
+ err = shash_register_instance(tmpl, inst);
+ if (err) {
+err_free_inst:
+ shash_free_singlespawn_instance(inst);
+ }
return err;
}
@@ -972,7 +941,6 @@ static struct crypto_template crypto_ccm_tmpls[] = {
{
.name = "cbcmac",
.create = cbcmac_create,
- .free = shash_free_instance,
.module = THIS_MODULE,
}, {
.name = "ccm_base",
diff --git a/crypto/cfb.c b/crypto/cfb.c
index 7b68fbb61732..4e5219bbcd19 100644
--- a/crypto/cfb.c
+++ b/crypto/cfb.c
@@ -203,10 +203,12 @@ static int crypto_cfb_create(struct crypto_template *tmpl, struct rtattr **tb)
struct crypto_alg *alg;
int err;
- inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
+ inst = skcipher_alloc_instance_simple(tmpl, tb);
if (IS_ERR(inst))
return PTR_ERR(inst);
+ alg = skcipher_ialg_simple(inst);
+
/* CFB mode is a stream cipher. */
inst->alg.base.cra_blocksize = 1;
@@ -223,7 +225,6 @@ static int crypto_cfb_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
inst->free(inst);
- crypto_mod_put(alg);
return err;
}
diff --git a/crypto/chacha20poly1305.c b/crypto/chacha20poly1305.c
index 74e824e537e6..ccaea5cb66d1 100644
--- a/crypto/chacha20poly1305.c
+++ b/crypto/chacha20poly1305.c
@@ -16,8 +16,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
-#include "internal.h"
-
struct chachapoly_instance_ctx {
struct crypto_skcipher_spawn chacha;
struct crypto_ahash_spawn poly;
@@ -477,7 +475,6 @@ static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct chachapoly_ctx *ctx = crypto_aead_ctx(aead);
- int err;
if (keylen != ctx->saltlen + CHACHA_KEY_SIZE)
return -EINVAL;
@@ -488,11 +485,7 @@ static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key,
crypto_skcipher_clear_flags(ctx->chacha, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(ctx->chacha, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
-
- err = crypto_skcipher_setkey(ctx->chacha, key, keylen);
- crypto_aead_set_flags(aead, crypto_skcipher_get_flags(ctx->chacha) &
- CRYPTO_TFM_RES_MASK);
- return err;
+ return crypto_skcipher_setkey(ctx->chacha, key, keylen);
}
static int chachapoly_setauthsize(struct crypto_aead *tfm,
@@ -563,12 +556,11 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb,
const char *name, unsigned int ivsize)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
- struct skcipher_alg *chacha;
- struct crypto_alg *poly;
- struct hash_alg_common *poly_hash;
struct chachapoly_instance_ctx *ctx;
- const char *chacha_name, *poly_name;
+ struct skcipher_alg *chacha;
+ struct hash_alg_common *poly;
int err;
if (ivsize > CHACHAPOLY_IV_SIZE)
@@ -581,72 +573,53 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
- chacha_name = crypto_attr_alg_name(tb[1]);
- if (IS_ERR(chacha_name))
- return PTR_ERR(chacha_name);
- poly_name = crypto_attr_alg_name(tb[2]);
- if (IS_ERR(poly_name))
- return PTR_ERR(poly_name);
-
- poly = crypto_find_alg(poly_name, &crypto_ahash_type,
- CRYPTO_ALG_TYPE_HASH,
- CRYPTO_ALG_TYPE_AHASH_MASK |
- crypto_requires_sync(algt->type,
- algt->mask));
- if (IS_ERR(poly))
- return PTR_ERR(poly);
- poly_hash = __crypto_hash_alg_common(poly);
+ mask = crypto_requires_sync(algt->type, algt->mask);
- err = -EINVAL;
- if (poly_hash->digestsize != POLY1305_DIGEST_SIZE)
- goto out_put_poly;
-
- err = -ENOMEM;
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
if (!inst)
- goto out_put_poly;
-
+ return -ENOMEM;
ctx = aead_instance_ctx(inst);
ctx->saltlen = CHACHAPOLY_IV_SIZE - ivsize;
- err = crypto_init_ahash_spawn(&ctx->poly, poly_hash,
- aead_crypto_instance(inst));
+
+ err = crypto_grab_skcipher(&ctx->chacha, aead_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, mask);
if (err)
goto err_free_inst;
+ chacha = crypto_spawn_skcipher_alg(&ctx->chacha);
- crypto_set_skcipher_spawn(&ctx->chacha, aead_crypto_instance(inst));
- err = crypto_grab_skcipher(&ctx->chacha, chacha_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_ahash(&ctx->poly, aead_crypto_instance(inst),
+ crypto_attr_alg_name(tb[2]), 0, mask);
if (err)
- goto err_drop_poly;
-
- chacha = crypto_spawn_skcipher_alg(&ctx->chacha);
+ goto err_free_inst;
+ poly = crypto_spawn_ahash_alg(&ctx->poly);
err = -EINVAL;
+ if (poly->digestsize != POLY1305_DIGEST_SIZE)
+ goto err_free_inst;
/* Need 16-byte IV size, including Initial Block Counter value */
if (crypto_skcipher_alg_ivsize(chacha) != CHACHA_IV_SIZE)
- goto out_drop_chacha;
+ goto err_free_inst;
/* Not a stream cipher? */
if (chacha->base.cra_blocksize != 1)
- goto out_drop_chacha;
+ goto err_free_inst;
err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"%s(%s,%s)", name, chacha->base.cra_name,
- poly->cra_name) >= CRYPTO_MAX_ALG_NAME)
- goto out_drop_chacha;
+ poly->base.cra_name) >= CRYPTO_MAX_ALG_NAME)
+ goto err_free_inst;
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"%s(%s,%s)", name, chacha->base.cra_driver_name,
- poly->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
- goto out_drop_chacha;
+ poly->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
+ goto err_free_inst;
- inst->alg.base.cra_flags = (chacha->base.cra_flags | poly->cra_flags) &
- CRYPTO_ALG_ASYNC;
+ inst->alg.base.cra_flags = (chacha->base.cra_flags |
+ poly->base.cra_flags) & CRYPTO_ALG_ASYNC;
inst->alg.base.cra_priority = (chacha->base.cra_priority +
- poly->cra_priority) / 2;
+ poly->base.cra_priority) / 2;
inst->alg.base.cra_blocksize = 1;
inst->alg.base.cra_alignmask = chacha->base.cra_alignmask |
- poly->cra_alignmask;
+ poly->base.cra_alignmask;
inst->alg.base.cra_ctxsize = sizeof(struct chachapoly_ctx) +
ctx->saltlen;
inst->alg.ivsize = ivsize;
@@ -662,20 +635,11 @@ static int chachapoly_create(struct crypto_template *tmpl, struct rtattr **tb,
inst->free = chachapoly_free;
err = aead_register_instance(tmpl, inst);
- if (err)
- goto out_drop_chacha;
-
-out_put_poly:
- crypto_mod_put(poly);
- return err;
-
-out_drop_chacha:
- crypto_drop_skcipher(&ctx->chacha);
-err_drop_poly:
- crypto_drop_ahash(&ctx->poly);
+ if (err) {
err_free_inst:
- kfree(inst);
- goto out_put_poly;
+ chachapoly_free(inst);
+ }
+ return err;
}
static int rfc7539_create(struct crypto_template *tmpl, struct rtattr **tb)
diff --git a/crypto/cipher.c b/crypto/cipher.c
index 108427026e7c..fd78150deb1c 100644
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -2,7 +2,7 @@
/*
* Cryptographic API.
*
- * Cipher operations.
+ * Single-block cipher operations.
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
* Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
@@ -16,11 +16,11 @@
#include <linux/string.h>
#include "internal.h"
-static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key,
+static int setkey_unaligned(struct crypto_cipher *tfm, const u8 *key,
unsigned int keylen)
{
- struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher;
- unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
+ struct cipher_alg *cia = crypto_cipher_alg(tfm);
+ unsigned long alignmask = crypto_cipher_alignmask(tfm);
int ret;
u8 *buffer, *alignbuffer;
unsigned long absize;
@@ -32,83 +32,60 @@ static int setkey_unaligned(struct crypto_tfm *tfm, const u8 *key,
alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
memcpy(alignbuffer, key, keylen);
- ret = cia->cia_setkey(tfm, alignbuffer, keylen);
+ ret = cia->cia_setkey(crypto_cipher_tfm(tfm), alignbuffer, keylen);
memset(alignbuffer, 0, keylen);
kfree(buffer);
return ret;
}
-static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
+int crypto_cipher_setkey(struct crypto_cipher *tfm,
+ const u8 *key, unsigned int keylen)
{
- struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher;
- unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
+ struct cipher_alg *cia = crypto_cipher_alg(tfm);
+ unsigned long alignmask = crypto_cipher_alignmask(tfm);
- tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
- if (keylen < cia->cia_min_keysize || keylen > cia->cia_max_keysize) {
- tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ if (keylen < cia->cia_min_keysize || keylen > cia->cia_max_keysize)
return -EINVAL;
- }
if ((unsigned long)key & alignmask)
return setkey_unaligned(tfm, key, keylen);
- return cia->cia_setkey(tfm, key, keylen);
-}
-
-static void cipher_crypt_unaligned(void (*fn)(struct crypto_tfm *, u8 *,
- const u8 *),
- struct crypto_tfm *tfm,
- u8 *dst, const u8 *src)
-{
- unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
- unsigned int size = crypto_tfm_alg_blocksize(tfm);
- u8 buffer[MAX_CIPHER_BLOCKSIZE + MAX_CIPHER_ALIGNMASK];
- u8 *tmp = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
-
- memcpy(tmp, src, size);
- fn(tfm, tmp, tmp);
- memcpy(dst, tmp, size);
+ return cia->cia_setkey(crypto_cipher_tfm(tfm), key, keylen);
}
+EXPORT_SYMBOL_GPL(crypto_cipher_setkey);
-static void cipher_encrypt_unaligned(struct crypto_tfm *tfm,
- u8 *dst, const u8 *src)
+static inline void cipher_crypt_one(struct crypto_cipher *tfm,
+ u8 *dst, const u8 *src, bool enc)
{
- unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
- struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
+ unsigned long alignmask = crypto_cipher_alignmask(tfm);
+ struct cipher_alg *cia = crypto_cipher_alg(tfm);
+ void (*fn)(struct crypto_tfm *, u8 *, const u8 *) =
+ enc ? cia->cia_encrypt : cia->cia_decrypt;
if (unlikely(((unsigned long)dst | (unsigned long)src) & alignmask)) {
- cipher_crypt_unaligned(cipher->cia_encrypt, tfm, dst, src);
- return;
+ unsigned int bs = crypto_cipher_blocksize(tfm);
+ u8 buffer[MAX_CIPHER_BLOCKSIZE + MAX_CIPHER_ALIGNMASK];
+ u8 *tmp = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
+
+ memcpy(tmp, src, bs);
+ fn(crypto_cipher_tfm(tfm), tmp, tmp);
+ memcpy(dst, tmp, bs);
+ } else {
+ fn(crypto_cipher_tfm(tfm), dst, src);
}
-
- cipher->cia_encrypt(tfm, dst, src);
}
-static void cipher_decrypt_unaligned(struct crypto_tfm *tfm,
- u8 *dst, const u8 *src)
+void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
+ u8 *dst, const u8 *src)
{
- unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
- struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
-
- if (unlikely(((unsigned long)dst | (unsigned long)src) & alignmask)) {
- cipher_crypt_unaligned(cipher->cia_decrypt, tfm, dst, src);
- return;
- }
-
- cipher->cia_decrypt(tfm, dst, src);
+ cipher_crypt_one(tfm, dst, src, true);
}
+EXPORT_SYMBOL_GPL(crypto_cipher_encrypt_one);
-int crypto_init_cipher_ops(struct crypto_tfm *tfm)
+void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
+ u8 *dst, const u8 *src)
{
- struct cipher_tfm *ops = &tfm->crt_cipher;
- struct cipher_alg *cipher = &tfm->__crt_alg->cra_cipher;
-
- ops->cit_setkey = setkey;
- ops->cit_encrypt_one = crypto_tfm_alg_alignmask(tfm) ?
- cipher_encrypt_unaligned : cipher->cia_encrypt;
- ops->cit_decrypt_one = crypto_tfm_alg_alignmask(tfm) ?
- cipher_decrypt_unaligned : cipher->cia_decrypt;
-
- return 0;
+ cipher_crypt_one(tfm, dst, src, false);
}
+EXPORT_SYMBOL_GPL(crypto_cipher_decrypt_one);
diff --git a/crypto/cmac.c b/crypto/cmac.c
index 0928aebc6205..143a6544c873 100644
--- a/crypto/cmac.c
+++ b/crypto/cmac.c
@@ -201,7 +201,7 @@ static int cmac_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_cipher *cipher;
struct crypto_instance *inst = (void *)tfm->__crt_alg;
- struct crypto_spawn *spawn = crypto_instance_ctx(inst);
+ struct crypto_cipher_spawn *spawn = crypto_instance_ctx(inst);
struct cmac_tfm_ctx *ctx = crypto_tfm_ctx(tfm);
cipher = crypto_spawn_cipher(spawn);
@@ -222,6 +222,7 @@ static void cmac_exit_tfm(struct crypto_tfm *tfm)
static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct shash_instance *inst;
+ struct crypto_cipher_spawn *spawn;
struct crypto_alg *alg;
unsigned long alignmask;
int err;
@@ -230,10 +231,16 @@ static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
return err;
- alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
- CRYPTO_ALG_TYPE_MASK);
- if (IS_ERR(alg))
- return PTR_ERR(alg);
+ inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ spawn = shash_instance_ctx(inst);
+
+ err = crypto_grab_cipher(spawn, shash_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, 0);
+ if (err)
+ goto err_free_inst;
+ alg = crypto_spawn_cipher_alg(spawn);
switch (alg->cra_blocksize) {
case 16:
@@ -241,19 +248,12 @@ static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
break;
default:
err = -EINVAL;
- goto out_put_alg;
+ goto err_free_inst;
}
- inst = shash_alloc_instance("cmac", alg);
- err = PTR_ERR(inst);
- if (IS_ERR(inst))
- goto out_put_alg;
-
- err = crypto_init_spawn(shash_instance_ctx(inst), alg,
- shash_crypto_instance(inst),
- CRYPTO_ALG_TYPE_MASK);
+ err = crypto_inst_setname(shash_crypto_instance(inst), tmpl->name, alg);
if (err)
- goto out_free_inst;
+ goto err_free_inst;
alignmask = alg->cra_alignmask;
inst->alg.base.cra_alignmask = alignmask;
@@ -280,21 +280,19 @@ static int cmac_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.final = crypto_cmac_digest_final;
inst->alg.setkey = crypto_cmac_digest_setkey;
+ inst->free = shash_free_singlespawn_instance;
+
err = shash_register_instance(tmpl, inst);
if (err) {
-out_free_inst:
- shash_free_instance(shash_crypto_instance(inst));
+err_free_inst:
+ shash_free_singlespawn_instance(inst);
}
-
-out_put_alg:
- crypto_mod_put(alg);
return err;
}
static struct crypto_template crypto_cmac_tmpl = {
.name = "cmac",
.create = cmac_create,
- .free = shash_free_instance,
.module = THIS_MODULE,
};
diff --git a/crypto/compress.c b/crypto/compress.c
index e9edf8524787..9048fe390c46 100644
--- a/crypto/compress.c
+++ b/crypto/compress.c
@@ -6,34 +6,27 @@
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
*/
-#include <linux/types.h>
#include <linux/crypto.h>
-#include <linux/errno.h>
-#include <linux/string.h>
#include "internal.h"
-static int crypto_compress(struct crypto_tfm *tfm,
- const u8 *src, unsigned int slen,
- u8 *dst, unsigned int *dlen)
+int crypto_comp_compress(struct crypto_comp *comp,
+ const u8 *src, unsigned int slen,
+ u8 *dst, unsigned int *dlen)
{
+ struct crypto_tfm *tfm = crypto_comp_tfm(comp);
+
return tfm->__crt_alg->cra_compress.coa_compress(tfm, src, slen, dst,
dlen);
}
+EXPORT_SYMBOL_GPL(crypto_comp_compress);
-static int crypto_decompress(struct crypto_tfm *tfm,
- const u8 *src, unsigned int slen,
- u8 *dst, unsigned int *dlen)
+int crypto_comp_decompress(struct crypto_comp *comp,
+ const u8 *src, unsigned int slen,
+ u8 *dst, unsigned int *dlen)
{
+ struct crypto_tfm *tfm = crypto_comp_tfm(comp);
+
return tfm->__crt_alg->cra_compress.coa_decompress(tfm, src, slen, dst,
dlen);
}
-
-int crypto_init_compress_ops(struct crypto_tfm *tfm)
-{
- struct compress_tfm *ops = &tfm->crt_compress;
-
- ops->cot_compress = crypto_compress;
- ops->cot_decompress = crypto_decompress;
-
- return 0;
-}
+EXPORT_SYMBOL_GPL(crypto_comp_decompress);
diff --git a/crypto/crc32_generic.c b/crypto/crc32_generic.c
index 9e97912280bd..0e103fb5dd77 100644
--- a/crypto/crc32_generic.c
+++ b/crypto/crc32_generic.c
@@ -60,10 +60,8 @@ static int crc32_setkey(struct crypto_shash *hash, const u8 *key,
{
u32 *mctx = crypto_shash_ctx(hash);
- if (keylen != sizeof(u32)) {
- crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(u32))
return -EINVAL;
- }
*mctx = get_unaligned_le32(key);
return 0;
}
diff --git a/crypto/crc32c_generic.c b/crypto/crc32c_generic.c
index 7b25fe82072c..7fa9b0788685 100644
--- a/crypto/crc32c_generic.c
+++ b/crypto/crc32c_generic.c
@@ -74,10 +74,8 @@ static int chksum_setkey(struct crypto_shash *tfm, const u8 *key,
{
struct chksum_ctx *mctx = crypto_shash_ctx(tfm);
- if (keylen != sizeof(mctx->key)) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(mctx->key))
return -EINVAL;
- }
mctx->key = get_unaligned_le32(key);
return 0;
}
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 2c6649b10923..d94c75c840a5 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -221,48 +221,17 @@ static int cryptd_init_instance(struct crypto_instance *inst,
return 0;
}
-static void *cryptd_alloc_instance(struct crypto_alg *alg, unsigned int head,
- unsigned int tail)
-{
- char *p;
- struct crypto_instance *inst;
- int err;
-
- p = kzalloc(head + sizeof(*inst) + tail, GFP_KERNEL);
- if (!p)
- return ERR_PTR(-ENOMEM);
-
- inst = (void *)(p + head);
-
- err = cryptd_init_instance(inst, alg);
- if (err)
- goto out_free_inst;
-
-out:
- return p;
-
-out_free_inst:
- kfree(p);
- p = ERR_PTR(err);
- goto out;
-}
-
static int cryptd_skcipher_setkey(struct crypto_skcipher *parent,
const u8 *key, unsigned int keylen)
{
struct cryptd_skcipher_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_sync_skcipher *child = ctx->child;
- int err;
crypto_sync_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_sync_skcipher_set_flags(child,
crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_sync_skcipher_setkey(child, key, keylen);
- crypto_skcipher_set_flags(parent,
- crypto_sync_skcipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
- return err;
+ return crypto_sync_skcipher_setkey(child, key, keylen);
}
static void cryptd_skcipher_complete(struct skcipher_request *req, int err)
@@ -421,8 +390,8 @@ static int cryptd_create_skcipher(struct crypto_template *tmpl,
ctx = skcipher_instance_ctx(inst);
ctx->queue = queue;
- crypto_set_skcipher_spawn(&ctx->spawn, skcipher_crypto_instance(inst));
- err = crypto_grab_skcipher(&ctx->spawn, name, type, mask);
+ err = crypto_grab_skcipher(&ctx->spawn, skcipher_crypto_instance(inst),
+ name, type, mask);
if (err)
goto out_free_inst;
@@ -491,15 +460,11 @@ static int cryptd_hash_setkey(struct crypto_ahash *parent,
{
struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(parent);
struct crypto_shash *child = ctx->child;
- int err;
crypto_shash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_shash_set_flags(child, crypto_ahash_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_shash_setkey(child, key, keylen);
- crypto_ahash_set_flags(parent, crypto_shash_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
- return err;
+ return crypto_shash_setkey(child, key, keylen);
}
static int cryptd_hash_enqueue(struct ahash_request *req,
@@ -666,44 +631,49 @@ static int cryptd_hash_import(struct ahash_request *req, const void *in)
return crypto_shash_import(desc, in);
}
+static void cryptd_hash_free(struct ahash_instance *inst)
+{
+ struct hashd_instance_ctx *ctx = ahash_instance_ctx(inst);
+
+ crypto_drop_shash(&ctx->spawn);
+ kfree(inst);
+}
+
static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
struct cryptd_queue *queue)
{
struct hashd_instance_ctx *ctx;
struct ahash_instance *inst;
- struct shash_alg *salg;
- struct crypto_alg *alg;
+ struct shash_alg *alg;
u32 type = 0;
u32 mask = 0;
int err;
cryptd_check_internal(tb, &type, &mask);
- salg = shash_attr_alg(tb[1], type, mask);
- if (IS_ERR(salg))
- return PTR_ERR(salg);
-
- alg = &salg->base;
- inst = cryptd_alloc_instance(alg, ahash_instance_headroom(),
- sizeof(*ctx));
- err = PTR_ERR(inst);
- if (IS_ERR(inst))
- goto out_put_alg;
+ inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
ctx = ahash_instance_ctx(inst);
ctx->queue = queue;
- err = crypto_init_shash_spawn(&ctx->spawn, salg,
- ahash_crypto_instance(inst));
+ err = crypto_grab_shash(&ctx->spawn, ahash_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), type, mask);
if (err)
- goto out_free_inst;
+ goto err_free_inst;
+ alg = crypto_spawn_shash_alg(&ctx->spawn);
+
+ err = cryptd_init_instance(ahash_crypto_instance(inst), &alg->base);
+ if (err)
+ goto err_free_inst;
inst->alg.halg.base.cra_flags = CRYPTO_ALG_ASYNC |
- (alg->cra_flags & (CRYPTO_ALG_INTERNAL |
- CRYPTO_ALG_OPTIONAL_KEY));
+ (alg->base.cra_flags & (CRYPTO_ALG_INTERNAL |
+ CRYPTO_ALG_OPTIONAL_KEY));
- inst->alg.halg.digestsize = salg->digestsize;
- inst->alg.halg.statesize = salg->statesize;
+ inst->alg.halg.digestsize = alg->digestsize;
+ inst->alg.halg.statesize = alg->statesize;
inst->alg.halg.base.cra_ctxsize = sizeof(struct cryptd_hash_ctx);
inst->alg.halg.base.cra_init = cryptd_hash_init_tfm;
@@ -715,19 +685,18 @@ static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
inst->alg.finup = cryptd_hash_finup_enqueue;
inst->alg.export = cryptd_hash_export;
inst->alg.import = cryptd_hash_import;
- if (crypto_shash_alg_has_setkey(salg))
+ if (crypto_shash_alg_has_setkey(alg))
inst->alg.setkey = cryptd_hash_setkey;
inst->alg.digest = cryptd_hash_digest_enqueue;
+ inst->free = cryptd_hash_free;
+
err = ahash_register_instance(tmpl, inst);
if (err) {
+err_free_inst:
crypto_drop_shash(&ctx->spawn);
-out_free_inst:
kfree(inst);
}
-
-out_put_alg:
- crypto_mod_put(alg);
return err;
}
@@ -849,6 +818,14 @@ static void cryptd_aead_exit_tfm(struct crypto_aead *tfm)
crypto_free_aead(ctx->child);
}
+static void cryptd_aead_free(struct aead_instance *inst)
+{
+ struct aead_instance_ctx *ctx = aead_instance_ctx(inst);
+
+ crypto_drop_aead(&ctx->aead_spawn);
+ kfree(inst);
+}
+
static int cryptd_create_aead(struct crypto_template *tmpl,
struct rtattr **tb,
struct cryptd_queue *queue)
@@ -874,8 +851,8 @@ static int cryptd_create_aead(struct crypto_template *tmpl,
ctx = aead_instance_ctx(inst);
ctx->queue = queue;
- crypto_set_aead_spawn(&ctx->aead_spawn, aead_crypto_instance(inst));
- err = crypto_grab_aead(&ctx->aead_spawn, name, type, mask);
+ err = crypto_grab_aead(&ctx->aead_spawn, aead_crypto_instance(inst),
+ name, type, mask);
if (err)
goto out_free_inst;
@@ -898,6 +875,8 @@ static int cryptd_create_aead(struct crypto_template *tmpl,
inst->alg.encrypt = cryptd_aead_encrypt_enqueue;
inst->alg.decrypt = cryptd_aead_decrypt_enqueue;
+ inst->free = cryptd_aead_free;
+
err = aead_register_instance(tmpl, inst);
if (err) {
out_drop_aead:
@@ -930,31 +909,9 @@ static int cryptd_create(struct crypto_template *tmpl, struct rtattr **tb)
return -EINVAL;
}
-static void cryptd_free(struct crypto_instance *inst)
-{
- struct cryptd_instance_ctx *ctx = crypto_instance_ctx(inst);
- struct hashd_instance_ctx *hctx = crypto_instance_ctx(inst);
- struct aead_instance_ctx *aead_ctx = crypto_instance_ctx(inst);
-
- switch (inst->alg.cra_flags & CRYPTO_ALG_TYPE_MASK) {
- case CRYPTO_ALG_TYPE_AHASH:
- crypto_drop_shash(&hctx->spawn);
- kfree(ahash_instance(inst));
- return;
- case CRYPTO_ALG_TYPE_AEAD:
- crypto_drop_aead(&aead_ctx->aead_spawn);
- kfree(aead_instance(inst));
- return;
- default:
- crypto_drop_spawn(&ctx->spawn);
- kfree(inst);
- }
-}
-
static struct crypto_template cryptd_tmpl = {
.name = "cryptd",
.create = cryptd_create,
- .free = cryptd_free,
.module = THIS_MODULE,
};
diff --git a/crypto/crypto_user_base.c b/crypto/crypto_user_base.c
index b785c476de67..3fa20f12989f 100644
--- a/crypto/crypto_user_base.c
+++ b/crypto/crypto_user_base.c
@@ -323,7 +323,8 @@ static int crypto_del_alg(struct sk_buff *skb, struct nlmsghdr *nlh,
if (refcount_read(&alg->cra_refcnt) > 2)
goto drop_alg;
- err = crypto_unregister_instance((struct crypto_instance *)alg);
+ crypto_unregister_instance((struct crypto_instance *)alg);
+ err = 0;
drop_alg:
crypto_mod_put(alg);
diff --git a/crypto/ctr.c b/crypto/ctr.c
index 70a3fccb82f3..a8feab621c6c 100644
--- a/crypto/ctr.c
+++ b/crypto/ctr.c
@@ -129,10 +129,12 @@ static int crypto_ctr_create(struct crypto_template *tmpl, struct rtattr **tb)
struct crypto_alg *alg;
int err;
- inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
+ inst = skcipher_alloc_instance_simple(tmpl, tb);
if (IS_ERR(inst))
return PTR_ERR(inst);
+ alg = skcipher_ialg_simple(inst);
+
/* Block size must be >= 4 bytes. */
err = -EINVAL;
if (alg->cra_blocksize < 4)
@@ -155,14 +157,11 @@ static int crypto_ctr_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.decrypt = crypto_ctr_crypt;
err = skcipher_register_instance(tmpl, inst);
- if (err)
- goto out_free_inst;
- goto out_put_alg;
-
+ if (err) {
out_free_inst:
- inst->free(inst);
-out_put_alg:
- crypto_mod_put(alg);
+ inst->free(inst);
+ }
+
return err;
}
@@ -171,7 +170,6 @@ static int crypto_rfc3686_setkey(struct crypto_skcipher *parent,
{
struct crypto_rfc3686_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_skcipher *child = ctx->child;
- int err;
/* the nonce is stored in bytes at end of key */
if (keylen < CTR_RFC3686_NONCE_SIZE)
@@ -185,11 +183,7 @@ static int crypto_rfc3686_setkey(struct crypto_skcipher *parent,
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_skcipher_setkey(child, key, keylen);
- crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_skcipher_setkey(child, key, keylen);
}
static int crypto_rfc3686_crypt(struct skcipher_request *req)
@@ -292,8 +286,8 @@ static int crypto_rfc3686_create(struct crypto_template *tmpl,
spawn = skcipher_instance_ctx(inst);
- crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
- err = crypto_grab_skcipher(spawn, cipher_name, 0, mask);
+ err = crypto_grab_skcipher(spawn, skcipher_crypto_instance(inst),
+ cipher_name, 0, mask);
if (err)
goto err_free_inst;
diff --git a/crypto/cts.c b/crypto/cts.c
index 6b6087dbb62a..48188adc8e91 100644
--- a/crypto/cts.c
+++ b/crypto/cts.c
@@ -78,15 +78,11 @@ static int crypto_cts_setkey(struct crypto_skcipher *parent, const u8 *key,
{
struct crypto_cts_ctx *ctx = crypto_skcipher_ctx(parent);
struct crypto_skcipher *child = ctx->child;
- int err;
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_skcipher_setkey(child, key, keylen);
- crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
- return err;
+ return crypto_skcipher_setkey(child, key, keylen);
}
static void cts_cbc_crypt_done(struct crypto_async_request *areq, int err)
@@ -332,6 +328,7 @@ static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb)
struct crypto_attr_type *algt;
struct skcipher_alg *alg;
const char *cipher_name;
+ u32 mask;
int err;
algt = crypto_get_attr_type(tb);
@@ -341,6 +338,8 @@ static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb)
if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
return -EINVAL;
+ mask = crypto_requires_sync(algt->type, algt->mask);
+
cipher_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(cipher_name))
return PTR_ERR(cipher_name);
@@ -351,10 +350,8 @@ static int crypto_cts_create(struct crypto_template *tmpl, struct rtattr **tb)
spawn = skcipher_instance_ctx(inst);
- crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
- err = crypto_grab_skcipher(spawn, cipher_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(spawn, skcipher_crypto_instance(inst),
+ cipher_name, 0, mask);
if (err)
goto err_free_inst;
diff --git a/crypto/des_generic.c b/crypto/des_generic.c
index 6e13a4a29ecb..c85354a5e94c 100644
--- a/crypto/des_generic.c
+++ b/crypto/des_generic.c
@@ -29,11 +29,8 @@ static int des_setkey(struct crypto_tfm *tfm, const u8 *key,
else
err = 0;
}
-
- if (err) {
+ if (err)
memset(dctx, 0, sizeof(*dctx));
- crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
- }
return err;
}
@@ -64,11 +61,8 @@ static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key,
else
err = 0;
}
-
- if (err) {
+ if (err)
memset(dctx, 0, sizeof(*dctx));
- crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
- }
return err;
}
diff --git a/crypto/ecb.c b/crypto/ecb.c
index 9d6981ca7d5d..69a687cbdf21 100644
--- a/crypto/ecb.c
+++ b/crypto/ecb.c
@@ -61,10 +61,9 @@ static int crypto_ecb_decrypt(struct skcipher_request *req)
static int crypto_ecb_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct skcipher_instance *inst;
- struct crypto_alg *alg;
int err;
- inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
+ inst = skcipher_alloc_instance_simple(tmpl, tb);
if (IS_ERR(inst))
return PTR_ERR(inst);
@@ -76,7 +75,7 @@ static int crypto_ecb_create(struct crypto_template *tmpl, struct rtattr **tb)
err = skcipher_register_instance(tmpl, inst);
if (err)
inst->free(inst);
- crypto_mod_put(alg);
+
return err;
}
diff --git a/crypto/echainiv.c b/crypto/echainiv.c
index a49cbf7b0929..4a2f02baba14 100644
--- a/crypto/echainiv.c
+++ b/crypto/echainiv.c
@@ -133,29 +133,17 @@ static int echainiv_aead_create(struct crypto_template *tmpl,
inst->alg.base.cra_ctxsize = sizeof(struct aead_geniv_ctx);
inst->alg.base.cra_ctxsize += inst->alg.ivsize;
- inst->free = aead_geniv_free;
-
err = aead_register_instance(tmpl, inst);
- if (err)
- goto free_inst;
-
-out:
- return err;
-
+ if (err) {
free_inst:
- aead_geniv_free(inst);
- goto out;
-}
-
-static void echainiv_free(struct crypto_instance *inst)
-{
- aead_geniv_free(aead_instance(inst));
+ inst->free(inst);
+ }
+ return err;
}
static struct crypto_template echainiv_tmpl = {
.name = "echainiv",
.create = echainiv_aead_create,
- .free = echainiv_free,
.module = THIS_MODULE,
};
diff --git a/crypto/essiv.c b/crypto/essiv.c
index 495a2d1e1460..465a89c9d1ef 100644
--- a/crypto/essiv.c
+++ b/crypto/essiv.c
@@ -75,9 +75,6 @@ static int essiv_skcipher_setkey(struct crypto_skcipher *tfm,
crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(tctx->u.skcipher, key, keylen);
- crypto_skcipher_set_flags(tfm,
- crypto_skcipher_get_flags(tctx->u.skcipher) &
- CRYPTO_TFM_RES_MASK);
if (err)
return err;
@@ -90,13 +87,8 @@ static int essiv_skcipher_setkey(struct crypto_skcipher *tfm,
crypto_cipher_set_flags(tctx->essiv_cipher,
crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_cipher_setkey(tctx->essiv_cipher, salt,
- crypto_shash_digestsize(tctx->hash));
- crypto_skcipher_set_flags(tfm,
- crypto_cipher_get_flags(tctx->essiv_cipher) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_cipher_setkey(tctx->essiv_cipher, salt,
+ crypto_shash_digestsize(tctx->hash));
}
static int essiv_aead_setkey(struct crypto_aead *tfm, const u8 *key,
@@ -112,15 +104,11 @@ static int essiv_aead_setkey(struct crypto_aead *tfm, const u8 *key,
crypto_aead_set_flags(tctx->u.aead, crypto_aead_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
err = crypto_aead_setkey(tctx->u.aead, key, keylen);
- crypto_aead_set_flags(tfm, crypto_aead_get_flags(tctx->u.aead) &
- CRYPTO_TFM_RES_MASK);
if (err)
return err;
- if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) {
- crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
return -EINVAL;
- }
desc->tfm = tctx->hash;
err = crypto_shash_init(desc) ?:
@@ -132,12 +120,8 @@ static int essiv_aead_setkey(struct crypto_aead *tfm, const u8 *key,
crypto_cipher_clear_flags(tctx->essiv_cipher, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(tctx->essiv_cipher, crypto_aead_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_cipher_setkey(tctx->essiv_cipher, salt,
- crypto_shash_digestsize(tctx->hash));
- crypto_aead_set_flags(tfm, crypto_cipher_get_flags(tctx->essiv_cipher) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_cipher_setkey(tctx->essiv_cipher, salt,
+ crypto_shash_digestsize(tctx->hash));
}
static int essiv_aead_setauthsize(struct crypto_aead *tfm,
@@ -442,7 +426,7 @@ static bool essiv_supported_algorithms(const char *essiv_cipher_name,
if (ivsize != alg->cra_blocksize)
goto out;
- if (crypto_shash_alg_has_setkey(hash_alg))
+ if (crypto_shash_alg_needs_key(hash_alg))
goto out;
ret = true;
@@ -468,6 +452,7 @@ static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
struct shash_alg *hash_alg;
int ivsize;
u32 type;
+ u32 mask;
int err;
algt = crypto_get_attr_type(tb);
@@ -483,6 +468,7 @@ static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
return PTR_ERR(shash_name);
type = algt->type & algt->mask;
+ mask = crypto_requires_sync(algt->type, algt->mask);
switch (type) {
case CRYPTO_ALG_TYPE_SKCIPHER:
@@ -495,11 +481,8 @@ static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
ictx = crypto_instance_ctx(inst);
/* Symmetric cipher, e.g., "cbc(aes)" */
- crypto_set_skcipher_spawn(&ictx->u.skcipher_spawn, inst);
- err = crypto_grab_skcipher(&ictx->u.skcipher_spawn,
- inner_cipher_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(&ictx->u.skcipher_spawn, inst,
+ inner_cipher_name, 0, mask);
if (err)
goto out_free_inst;
skcipher_alg = crypto_spawn_skcipher_alg(&ictx->u.skcipher_spawn);
@@ -517,11 +500,8 @@ static int essiv_create(struct crypto_template *tmpl, struct rtattr **tb)
ictx = crypto_instance_ctx(inst);
/* AEAD cipher, e.g., "authenc(hmac(sha256),cbc(aes))" */
- crypto_set_aead_spawn(&ictx->u.aead_spawn, inst);
- err = crypto_grab_aead(&ictx->u.aead_spawn,
- inner_cipher_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_aead(&ictx->u.aead_spawn, inst,
+ inner_cipher_name, 0, mask);
if (err)
goto out_free_inst;
aead_alg = crypto_spawn_aead_alg(&ictx->u.aead_spawn);
diff --git a/crypto/gcm.c b/crypto/gcm.c
index 73884208f075..8e5c0ac65661 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -13,7 +13,6 @@
#include <crypto/scatterwalk.h>
#include <crypto/gcm.h>
#include <crypto/hash.h>
-#include "internal.h"
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
@@ -111,8 +110,6 @@ static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
crypto_skcipher_set_flags(ctr, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(ctr, key, keylen);
- crypto_aead_set_flags(aead, crypto_skcipher_get_flags(ctr) &
- CRYPTO_TFM_RES_MASK);
if (err)
return err;
@@ -141,9 +138,6 @@ static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
crypto_ahash_set_flags(ghash, crypto_aead_get_flags(aead) &
CRYPTO_TFM_REQ_MASK);
err = crypto_ahash_setkey(ghash, (u8 *)&data->hash, sizeof(be128));
- crypto_aead_set_flags(aead, crypto_ahash_get_flags(ghash) &
- CRYPTO_TFM_RES_MASK);
-
out:
kzfree(data);
return err;
@@ -585,11 +579,11 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl,
const char *ghash_name)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
+ struct gcm_instance_ctx *ctx;
struct skcipher_alg *ctr;
- struct crypto_alg *ghash_alg;
struct hash_alg_common *ghash;
- struct gcm_instance_ctx *ctx;
int err;
algt = crypto_get_attr_type(tb);
@@ -599,39 +593,28 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
- ghash_alg = crypto_find_alg(ghash_name, &crypto_ahash_type,
- CRYPTO_ALG_TYPE_HASH,
- CRYPTO_ALG_TYPE_AHASH_MASK |
- crypto_requires_sync(algt->type,
- algt->mask));
- if (IS_ERR(ghash_alg))
- return PTR_ERR(ghash_alg);
-
- ghash = __crypto_hash_alg_common(ghash_alg);
+ mask = crypto_requires_sync(algt->type, algt->mask);
- err = -ENOMEM;
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
if (!inst)
- goto out_put_ghash;
-
+ return -ENOMEM;
ctx = aead_instance_ctx(inst);
- err = crypto_init_ahash_spawn(&ctx->ghash, ghash,
- aead_crypto_instance(inst));
+
+ err = crypto_grab_ahash(&ctx->ghash, aead_crypto_instance(inst),
+ ghash_name, 0, mask);
if (err)
goto err_free_inst;
+ ghash = crypto_spawn_ahash_alg(&ctx->ghash);
err = -EINVAL;
if (strcmp(ghash->base.cra_name, "ghash") != 0 ||
ghash->digestsize != 16)
- goto err_drop_ghash;
+ goto err_free_inst;
- crypto_set_skcipher_spawn(&ctx->ctr, aead_crypto_instance(inst));
- err = crypto_grab_skcipher(&ctx->ctr, ctr_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(&ctx->ctr, aead_crypto_instance(inst),
+ ctr_name, 0, mask);
if (err)
- goto err_drop_ghash;
-
+ goto err_free_inst;
ctr = crypto_spawn_skcipher_alg(&ctx->ctr);
/* The skcipher algorithm must be CTR mode, using 16-byte blocks. */
@@ -639,18 +622,18 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl,
if (strncmp(ctr->base.cra_name, "ctr(", 4) != 0 ||
crypto_skcipher_alg_ivsize(ctr) != 16 ||
ctr->base.cra_blocksize != 1)
- goto out_put_ctr;
+ goto err_free_inst;
err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
"gcm(%s", ctr->base.cra_name + 4) >= CRYPTO_MAX_ALG_NAME)
- goto out_put_ctr;
+ goto err_free_inst;
if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"gcm_base(%s,%s)", ctr->base.cra_driver_name,
- ghash_alg->cra_driver_name) >=
+ ghash->base.cra_driver_name) >=
CRYPTO_MAX_ALG_NAME)
- goto out_put_ctr;
+ goto err_free_inst;
inst->alg.base.cra_flags = (ghash->base.cra_flags |
ctr->base.cra_flags) & CRYPTO_ALG_ASYNC;
@@ -673,20 +656,11 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl,
inst->free = crypto_gcm_free;
err = aead_register_instance(tmpl, inst);
- if (err)
- goto out_put_ctr;
-
-out_put_ghash:
- crypto_mod_put(ghash_alg);
- return err;
-
-out_put_ctr:
- crypto_drop_skcipher(&ctx->ctr);
-err_drop_ghash:
- crypto_drop_ahash(&ctx->ghash);
+ if (err) {
err_free_inst:
- kfree(inst);
- goto out_put_ghash;
+ crypto_gcm_free(inst);
+ }
+ return err;
}
static int crypto_gcm_create(struct crypto_template *tmpl, struct rtattr **tb)
@@ -727,7 +701,6 @@ static int crypto_rfc4106_setkey(struct crypto_aead *parent, const u8 *key,
{
struct crypto_rfc4106_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_aead *child = ctx->child;
- int err;
if (keylen < 4)
return -EINVAL;
@@ -738,11 +711,7 @@ static int crypto_rfc4106_setkey(struct crypto_aead *parent, const u8 *key,
crypto_aead_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(child, crypto_aead_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_aead_setkey(child, key, keylen);
- crypto_aead_set_flags(parent, crypto_aead_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_aead_setkey(child, key, keylen);
}
static int crypto_rfc4106_setauthsize(struct crypto_aead *parent,
@@ -867,6 +836,7 @@ static int crypto_rfc4106_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
struct crypto_aead_spawn *spawn;
struct aead_alg *alg;
@@ -880,6 +850,8 @@ static int crypto_rfc4106_create(struct crypto_template *tmpl,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
+ mask = crypto_requires_sync(algt->type, algt->mask);
+
ccm_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(ccm_name))
return PTR_ERR(ccm_name);
@@ -889,9 +861,8 @@ static int crypto_rfc4106_create(struct crypto_template *tmpl,
return -ENOMEM;
spawn = aead_instance_ctx(inst);
- crypto_set_aead_spawn(spawn, aead_crypto_instance(inst));
- err = crypto_grab_aead(spawn, ccm_name, 0,
- crypto_requires_sync(algt->type, algt->mask));
+ err = crypto_grab_aead(spawn, aead_crypto_instance(inst),
+ ccm_name, 0, mask);
if (err)
goto out_free_inst;
@@ -956,7 +927,6 @@ static int crypto_rfc4543_setkey(struct crypto_aead *parent, const u8 *key,
{
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_aead *child = ctx->child;
- int err;
if (keylen < 4)
return -EINVAL;
@@ -967,11 +937,7 @@ static int crypto_rfc4543_setkey(struct crypto_aead *parent, const u8 *key,
crypto_aead_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(child, crypto_aead_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_aead_setkey(child, key, keylen);
- crypto_aead_set_flags(parent, crypto_aead_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_aead_setkey(child, key, keylen);
}
static int crypto_rfc4543_setauthsize(struct crypto_aead *parent,
@@ -1103,6 +1069,7 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl,
struct rtattr **tb)
{
struct crypto_attr_type *algt;
+ u32 mask;
struct aead_instance *inst;
struct crypto_aead_spawn *spawn;
struct aead_alg *alg;
@@ -1117,6 +1084,8 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl,
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return -EINVAL;
+ mask = crypto_requires_sync(algt->type, algt->mask);
+
ccm_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(ccm_name))
return PTR_ERR(ccm_name);
@@ -1127,9 +1096,8 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl,
ctx = aead_instance_ctx(inst);
spawn = &ctx->aead;
- crypto_set_aead_spawn(spawn, aead_crypto_instance(inst));
- err = crypto_grab_aead(spawn, ccm_name, 0,
- crypto_requires_sync(algt->type, algt->mask));
+ err = crypto_grab_aead(spawn, aead_crypto_instance(inst),
+ ccm_name, 0, mask);
if (err)
goto out_free_inst;
diff --git a/crypto/geniv.c b/crypto/geniv.c
index b9e45a2a98b5..dbcc640274cd 100644
--- a/crypto/geniv.c
+++ b/crypto/geniv.c
@@ -32,6 +32,12 @@ static int aead_geniv_setauthsize(struct crypto_aead *tfm,
return crypto_aead_setauthsize(ctx->child, authsize);
}
+static void aead_geniv_free(struct aead_instance *inst)
+{
+ crypto_drop_aead(aead_instance_ctx(inst));
+ kfree(inst);
+}
+
struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
struct rtattr **tb, u32 type, u32 mask)
{
@@ -64,8 +70,8 @@ struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
/* Ignore async algorithms if necessary. */
mask |= crypto_requires_sync(algt->type, algt->mask);
- crypto_set_aead_spawn(spawn, aead_crypto_instance(inst));
- err = crypto_grab_aead(spawn, name, type, mask);
+ err = crypto_grab_aead(spawn, aead_crypto_instance(inst),
+ name, type, mask);
if (err)
goto err_free_inst;
@@ -100,6 +106,8 @@ struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
inst->alg.ivsize = ivsize;
inst->alg.maxauthsize = maxauthsize;
+ inst->free = aead_geniv_free;
+
out:
return inst;
@@ -112,13 +120,6 @@ err_free_inst:
}
EXPORT_SYMBOL_GPL(aead_geniv_alloc);
-void aead_geniv_free(struct aead_instance *inst)
-{
- crypto_drop_aead(aead_instance_ctx(inst));
- kfree(inst);
-}
-EXPORT_SYMBOL_GPL(aead_geniv_free);
-
int aead_init_geniv(struct crypto_aead *aead)
{
struct aead_geniv_ctx *ctx = crypto_aead_ctx(aead);
diff --git a/crypto/ghash-generic.c b/crypto/ghash-generic.c
index 5027b3461c92..c70d163c1ac9 100644
--- a/crypto/ghash-generic.c
+++ b/crypto/ghash-generic.c
@@ -58,10 +58,8 @@ static int ghash_setkey(struct crypto_shash *tfm,
struct ghash_ctx *ctx = crypto_shash_ctx(tfm);
be128 k;
- if (keylen != GHASH_BLOCK_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != GHASH_BLOCK_SIZE)
return -EINVAL;
- }
if (ctx->gf128)
gf128mul_free_4k(ctx->gf128);
diff --git a/crypto/hmac.c b/crypto/hmac.c
index 8b2a212eb0ad..e38bfb948278 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -138,12 +138,11 @@ static int hmac_finup(struct shash_desc *pdesc, const u8 *data,
crypto_shash_finup(desc, out, ds, out);
}
-static int hmac_init_tfm(struct crypto_tfm *tfm)
+static int hmac_init_tfm(struct crypto_shash *parent)
{
- struct crypto_shash *parent = __crypto_shash_cast(tfm);
struct crypto_shash *hash;
- struct crypto_instance *inst = (void *)tfm->__crt_alg;
- struct crypto_shash_spawn *spawn = crypto_instance_ctx(inst);
+ struct shash_instance *inst = shash_alg_instance(parent);
+ struct crypto_shash_spawn *spawn = shash_instance_ctx(inst);
struct hmac_ctx *ctx = hmac_ctx(parent);
hash = crypto_spawn_shash(spawn);
@@ -152,24 +151,21 @@ static int hmac_init_tfm(struct crypto_tfm *tfm)
parent->descsize = sizeof(struct shash_desc) +
crypto_shash_descsize(hash);
- if (WARN_ON(parent->descsize > HASH_MAX_DESCSIZE)) {
- crypto_free_shash(hash);
- return -EINVAL;
- }
ctx->hash = hash;
return 0;
}
-static void hmac_exit_tfm(struct crypto_tfm *tfm)
+static void hmac_exit_tfm(struct crypto_shash *parent)
{
- struct hmac_ctx *ctx = hmac_ctx(__crypto_shash_cast(tfm));
+ struct hmac_ctx *ctx = hmac_ctx(parent);
crypto_free_shash(ctx->hash);
}
static int hmac_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct shash_instance *inst;
+ struct crypto_shash_spawn *spawn;
struct crypto_alg *alg;
struct shash_alg *salg;
int err;
@@ -180,31 +176,32 @@ static int hmac_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
return err;
- salg = shash_attr_alg(tb[1], 0, 0);
- if (IS_ERR(salg))
- return PTR_ERR(salg);
+ inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ spawn = shash_instance_ctx(inst);
+
+ err = crypto_grab_shash(spawn, shash_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, 0);
+ if (err)
+ goto err_free_inst;
+ salg = crypto_spawn_shash_alg(spawn);
alg = &salg->base;
- /* The underlying hash algorithm must be unkeyed */
+ /* The underlying hash algorithm must not require a key */
err = -EINVAL;
- if (crypto_shash_alg_has_setkey(salg))
- goto out_put_alg;
+ if (crypto_shash_alg_needs_key(salg))
+ goto err_free_inst;
ds = salg->digestsize;
ss = salg->statesize;
if (ds > alg->cra_blocksize ||
ss < alg->cra_blocksize)
- goto out_put_alg;
+ goto err_free_inst;
- inst = shash_alloc_instance("hmac", alg);
- err = PTR_ERR(inst);
- if (IS_ERR(inst))
- goto out_put_alg;
-
- err = crypto_init_shash_spawn(shash_instance_ctx(inst), salg,
- shash_crypto_instance(inst));
+ err = crypto_inst_setname(shash_crypto_instance(inst), tmpl->name, alg);
if (err)
- goto out_free_inst;
+ goto err_free_inst;
inst->alg.base.cra_priority = alg->cra_priority;
inst->alg.base.cra_blocksize = alg->cra_blocksize;
@@ -217,9 +214,6 @@ static int hmac_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.base.cra_ctxsize = sizeof(struct hmac_ctx) +
ALIGN(ss * 2, crypto_tfm_ctx_alignment());
- inst->alg.base.cra_init = hmac_init_tfm;
- inst->alg.base.cra_exit = hmac_exit_tfm;
-
inst->alg.init = hmac_init;
inst->alg.update = hmac_update;
inst->alg.final = hmac_final;
@@ -227,22 +221,22 @@ static int hmac_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.export = hmac_export;
inst->alg.import = hmac_import;
inst->alg.setkey = hmac_setkey;
+ inst->alg.init_tfm = hmac_init_tfm;
+ inst->alg.exit_tfm = hmac_exit_tfm;
+
+ inst->free = shash_free_singlespawn_instance;
err = shash_register_instance(tmpl, inst);
if (err) {
-out_free_inst:
- shash_free_instance(shash_crypto_instance(inst));
+err_free_inst:
+ shash_free_singlespawn_instance(inst);
}
-
-out_put_alg:
- crypto_mod_put(alg);
return err;
}
static struct crypto_template hmac_tmpl = {
.name = "hmac",
.create = hmac_create,
- .free = shash_free_instance,
.module = THIS_MODULE,
};
diff --git a/crypto/internal.h b/crypto/internal.h
index 93df7bec844a..d5ebc60c5143 100644
--- a/crypto/internal.h
+++ b/crypto/internal.h
@@ -58,9 +58,6 @@ static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
-int crypto_init_cipher_ops(struct crypto_tfm *tfm);
-int crypto_init_compress_ops(struct crypto_tfm *tfm);
-
struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
void crypto_larval_kill(struct crypto_alg *alg);
void crypto_alg_tested(const char *name, int err);
@@ -68,7 +65,6 @@ void crypto_alg_tested(const char *name, int err);
void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
struct crypto_alg *nalg);
void crypto_remove_final(struct list_head *list);
-void crypto_shoot_alg(struct crypto_alg *alg);
struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
u32 mask);
void *crypto_create_tfm(struct crypto_alg *alg,
diff --git a/crypto/keywrap.c b/crypto/keywrap.c
index a155c88105ea..0355cce21b1e 100644
--- a/crypto/keywrap.c
+++ b/crypto/keywrap.c
@@ -266,10 +266,12 @@ static int crypto_kw_create(struct crypto_template *tmpl, struct rtattr **tb)
struct crypto_alg *alg;
int err;
- inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
+ inst = skcipher_alloc_instance_simple(tmpl, tb);
if (IS_ERR(inst))
return PTR_ERR(inst);
+ alg = skcipher_ialg_simple(inst);
+
err = -EINVAL;
/* Section 5.1 requirement for KW */
if (alg->cra_blocksize != sizeof(struct crypto_kw_block))
@@ -283,14 +285,11 @@ static int crypto_kw_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.decrypt = crypto_kw_decrypt;
err = skcipher_register_instance(tmpl, inst);
- if (err)
- goto out_free_inst;
- goto out_put_alg;
-
+ if (err) {
out_free_inst:
- inst->free(inst);
-out_put_alg:
- crypto_mod_put(alg);
+ inst->free(inst);
+ }
+
return err;
}
diff --git a/crypto/lrw.c b/crypto/lrw.c
index be829f6afc8e..63c485c0d8a6 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -79,8 +79,6 @@ static int setkey(struct crypto_skcipher *parent, const u8 *key,
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_skcipher_setkey(child, key, keylen - bsize);
- crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
if (err)
return err;
@@ -303,6 +301,7 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
struct skcipher_alg *alg;
const char *cipher_name;
char ecb_name[CRYPTO_MAX_ALG_NAME];
+ u32 mask;
int err;
algt = crypto_get_attr_type(tb);
@@ -312,6 +311,8 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
return -EINVAL;
+ mask = crypto_requires_sync(algt->type, algt->mask);
+
cipher_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(cipher_name))
return PTR_ERR(cipher_name);
@@ -322,19 +323,17 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
spawn = skcipher_instance_ctx(inst);
- crypto_set_skcipher_spawn(spawn, skcipher_crypto_instance(inst));
- err = crypto_grab_skcipher(spawn, cipher_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(spawn, skcipher_crypto_instance(inst),
+ cipher_name, 0, mask);
if (err == -ENOENT) {
err = -ENAMETOOLONG;
if (snprintf(ecb_name, CRYPTO_MAX_ALG_NAME, "ecb(%s)",
cipher_name) >= CRYPTO_MAX_ALG_NAME)
goto err_free_inst;
- err = crypto_grab_skcipher(spawn, ecb_name, 0,
- crypto_requires_sync(algt->type,
- algt->mask));
+ err = crypto_grab_skcipher(spawn,
+ skcipher_crypto_instance(inst),
+ ecb_name, 0, mask);
}
if (err)
diff --git a/crypto/michael_mic.c b/crypto/michael_mic.c
index 20e6220f46f6..63350c4ad461 100644
--- a/crypto/michael_mic.c
+++ b/crypto/michael_mic.c
@@ -137,10 +137,8 @@ static int michael_setkey(struct crypto_shash *tfm, const u8 *key,
const __le32 *data = (const __le32 *)key;
- if (keylen != 8) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != 8)
return -EINVAL;
- }
mctx->l = le32_to_cpu(data[0]);
mctx->r = le32_to_cpu(data[1]);
diff --git a/crypto/nhpoly1305.c b/crypto/nhpoly1305.c
index f6b6a52092b4..8a3006c3b51b 100644
--- a/crypto/nhpoly1305.c
+++ b/crypto/nhpoly1305.c
@@ -210,7 +210,7 @@ int crypto_nhpoly1305_final_helper(struct shash_desc *desc, u8 *dst, nh_t nh_fn)
if (state->nh_remaining)
process_nh_hash_value(state, key);
- poly1305_core_emit(&state->poly_state, dst);
+ poly1305_core_emit(&state->poly_state, NULL, dst);
return 0;
}
EXPORT_SYMBOL(crypto_nhpoly1305_final_helper);
diff --git a/crypto/ofb.c b/crypto/ofb.c
index 133ff4c7f2c6..2ec68e3f2c55 100644
--- a/crypto/ofb.c
+++ b/crypto/ofb.c
@@ -55,10 +55,12 @@ static int crypto_ofb_create(struct crypto_template *tmpl, struct rtattr **tb)
struct crypto_alg *alg;
int err;
- inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
+ inst = skcipher_alloc_instance_simple(tmpl, tb);
if (IS_ERR(inst))
return PTR_ERR(inst);
+ alg = skcipher_ialg_simple(inst);
+
/* OFB mode is a stream cipher. */
inst->alg.base.cra_blocksize = 1;
@@ -75,7 +77,6 @@ static int crypto_ofb_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
inst->free(inst);
- crypto_mod_put(alg);
return err;
}
diff --git a/crypto/pcbc.c b/crypto/pcbc.c
index 862cdb8d8b6c..ae921fb74dc9 100644
--- a/crypto/pcbc.c
+++ b/crypto/pcbc.c
@@ -153,10 +153,9 @@ static int crypto_pcbc_decrypt(struct skcipher_request *req)
static int crypto_pcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct skcipher_instance *inst;
- struct crypto_alg *alg;
int err;
- inst = skcipher_alloc_instance_simple(tmpl, tb, &alg);
+ inst = skcipher_alloc_instance_simple(tmpl, tb);
if (IS_ERR(inst))
return PTR_ERR(inst);
@@ -166,7 +165,7 @@ static int crypto_pcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
err = skcipher_register_instance(tmpl, inst);
if (err)
inst->free(inst);
- crypto_mod_put(alg);
+
return err;
}
diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index 543792e0ebf0..1b632139a8c1 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -13,7 +13,6 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/notifier.h>
#include <linux/kobject.h>
#include <linux/cpu.h>
#include <crypto/pcrypt.h>
@@ -24,6 +23,8 @@ static struct kset *pcrypt_kset;
struct pcrypt_instance_ctx {
struct crypto_aead_spawn spawn;
+ struct padata_shell *psenc;
+ struct padata_shell *psdec;
atomic_t tfm_count;
};
@@ -32,6 +33,12 @@ struct pcrypt_aead_ctx {
unsigned int cb_cpu;
};
+static inline struct pcrypt_instance_ctx *pcrypt_tfm_ictx(
+ struct crypto_aead *tfm)
+{
+ return aead_instance_ctx(aead_alg_instance(tfm));
+}
+
static int pcrypt_aead_setkey(struct crypto_aead *parent,
const u8 *key, unsigned int keylen)
{
@@ -63,7 +70,6 @@ static void pcrypt_aead_done(struct crypto_async_request *areq, int err)
struct padata_priv *padata = pcrypt_request_padata(preq);
padata->info = err;
- req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
padata_do_serial(padata);
}
@@ -90,6 +96,9 @@ static int pcrypt_aead_encrypt(struct aead_request *req)
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
u32 flags = aead_request_flags(req);
+ struct pcrypt_instance_ctx *ictx;
+
+ ictx = pcrypt_tfm_ictx(aead);
memset(padata, 0, sizeof(struct padata_priv));
@@ -103,7 +112,7 @@ static int pcrypt_aead_encrypt(struct aead_request *req)
req->cryptlen, req->iv);
aead_request_set_ad(creq, req->assoclen);
- err = padata_do_parallel(pencrypt, padata, &ctx->cb_cpu);
+ err = padata_do_parallel(ictx->psenc, padata, &ctx->cb_cpu);
if (!err)
return -EINPROGRESS;
@@ -132,6 +141,9 @@ static int pcrypt_aead_decrypt(struct aead_request *req)
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
u32 flags = aead_request_flags(req);
+ struct pcrypt_instance_ctx *ictx;
+
+ ictx = pcrypt_tfm_ictx(aead);
memset(padata, 0, sizeof(struct padata_priv));
@@ -145,7 +157,7 @@ static int pcrypt_aead_decrypt(struct aead_request *req)
req->cryptlen, req->iv);
aead_request_set_ad(creq, req->assoclen);
- err = padata_do_parallel(pdecrypt, padata, &ctx->cb_cpu);
+ err = padata_do_parallel(ictx->psdec, padata, &ctx->cb_cpu);
if (!err)
return -EINPROGRESS;
@@ -192,6 +204,8 @@ static void pcrypt_free(struct aead_instance *inst)
struct pcrypt_instance_ctx *ctx = aead_instance_ctx(inst);
crypto_drop_aead(&ctx->spawn);
+ padata_free_shell(ctx->psdec);
+ padata_free_shell(ctx->psenc);
kfree(inst);
}
@@ -233,12 +247,21 @@ static int pcrypt_create_aead(struct crypto_template *tmpl, struct rtattr **tb,
if (!inst)
return -ENOMEM;
+ err = -ENOMEM;
+
ctx = aead_instance_ctx(inst);
- crypto_set_aead_spawn(&ctx->spawn, aead_crypto_instance(inst));
+ ctx->psenc = padata_alloc_shell(pencrypt);
+ if (!ctx->psenc)
+ goto out_free_inst;
+
+ ctx->psdec = padata_alloc_shell(pdecrypt);
+ if (!ctx->psdec)
+ goto out_free_psenc;
- err = crypto_grab_aead(&ctx->spawn, name, 0, 0);
+ err = crypto_grab_aead(&ctx->spawn, aead_crypto_instance(inst),
+ name, 0, 0);
if (err)
- goto out_free_inst;
+ goto out_free_psdec;
alg = crypto_spawn_aead_alg(&ctx->spawn);
err = pcrypt_init_instance(aead_crypto_instance(inst), &alg->base);
@@ -271,6 +294,10 @@ out:
out_drop_aead:
crypto_drop_aead(&ctx->spawn);
+out_free_psdec:
+ padata_free_shell(ctx->psdec);
+out_free_psenc:
+ padata_free_shell(ctx->psenc);
out_free_inst:
kfree(inst);
goto out;
@@ -362,11 +389,12 @@ err:
static void __exit pcrypt_exit(void)
{
+ crypto_unregister_template(&pcrypt_tmpl);
+
pcrypt_fini_padata(pencrypt);
pcrypt_fini_padata(pdecrypt);
kset_unregister(pcrypt_kset);
- crypto_unregister_template(&pcrypt_tmpl);
}
subsys_initcall(pcrypt_init);
diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
index 21edbd8c99fb..94af47eb6fa6 100644
--- a/crypto/poly1305_generic.c
+++ b/crypto/poly1305_generic.c
@@ -31,6 +31,29 @@ static int crypto_poly1305_init(struct shash_desc *desc)
return 0;
}
+static unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx,
+ const u8 *src, unsigned int srclen)
+{
+ if (!dctx->sset) {
+ if (!dctx->rset && srclen >= POLY1305_BLOCK_SIZE) {
+ poly1305_core_setkey(&dctx->core_r, src);
+ src += POLY1305_BLOCK_SIZE;
+ srclen -= POLY1305_BLOCK_SIZE;
+ dctx->rset = 2;
+ }
+ if (srclen >= POLY1305_BLOCK_SIZE) {
+ dctx->s[0] = get_unaligned_le32(src + 0);
+ dctx->s[1] = get_unaligned_le32(src + 4);
+ dctx->s[2] = get_unaligned_le32(src + 8);
+ dctx->s[3] = get_unaligned_le32(src + 12);
+ src += POLY1305_BLOCK_SIZE;
+ srclen -= POLY1305_BLOCK_SIZE;
+ dctx->sset = true;
+ }
+ }
+ return srclen;
+}
+
static void poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
unsigned int srclen)
{
@@ -42,7 +65,7 @@ static void poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
srclen = datalen;
}
- poly1305_core_blocks(&dctx->h, dctx->r, src,
+ poly1305_core_blocks(&dctx->h, &dctx->core_r, src,
srclen / POLY1305_BLOCK_SIZE, 1);
}
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index 0aa489711ec4..176b63afec8d 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -598,6 +598,7 @@ static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
{
const struct rsa_asn1_template *digest_info;
struct crypto_attr_type *algt;
+ u32 mask;
struct akcipher_instance *inst;
struct pkcs1pad_inst_ctx *ctx;
struct crypto_akcipher_spawn *spawn;
@@ -613,6 +614,8 @@ static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
if ((algt->type ^ CRYPTO_ALG_TYPE_AKCIPHER) & algt->mask)
return -EINVAL;
+ mask = crypto_requires_sync(algt->type, algt->mask);
+
rsa_alg_name = crypto_attr_alg_name(tb[1]);
if (IS_ERR(rsa_alg_name))
return PTR_ERR(rsa_alg_name);
@@ -636,9 +639,8 @@ static int pkcs1pad_create(struct crypto_template *tmpl, struct rtattr **tb)
spawn = &ctx->spawn;
ctx->digest_info = digest_info;
- crypto_set_spawn(&spawn->base, akcipher_crypto_instance(inst));
- err = crypto_grab_akcipher(spawn, rsa_alg_name, 0,
- crypto_requires_sync(algt->type, algt->mask));
+ err = crypto_grab_akcipher(spawn, akcipher_crypto_instance(inst),
+ rsa_alg_name, 0, mask);
if (err)
goto out_free_inst;
diff --git a/crypto/scompress.c b/crypto/scompress.c
index 4d50750d01c6..738f4f8f0f41 100644
--- a/crypto/scompress.c
+++ b/crypto/scompress.c
@@ -266,9 +266,9 @@ int crypto_register_scomp(struct scomp_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_register_scomp);
-int crypto_unregister_scomp(struct scomp_alg *alg)
+void crypto_unregister_scomp(struct scomp_alg *alg)
{
- return crypto_unregister_alg(&alg->base);
+ crypto_unregister_alg(&alg->base);
}
EXPORT_SYMBOL_GPL(crypto_unregister_scomp);
diff --git a/crypto/seqiv.c b/crypto/seqiv.c
index 96d222c32acc..f124b9b54e15 100644
--- a/crypto/seqiv.c
+++ b/crypto/seqiv.c
@@ -18,8 +18,6 @@
#include <linux/slab.h>
#include <linux/string.h>
-static void seqiv_free(struct crypto_instance *inst);
-
static void seqiv_aead_encrypt_complete2(struct aead_request *req, int err)
{
struct aead_request *subreq = aead_request_ctx(req);
@@ -159,15 +157,11 @@ static int seqiv_aead_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.base.cra_ctxsize += inst->alg.ivsize;
err = aead_register_instance(tmpl, inst);
- if (err)
- goto free_inst;
-
-out:
- return err;
-
+ if (err) {
free_inst:
- aead_geniv_free(inst);
- goto out;
+ inst->free(inst);
+ }
+ return err;
}
static int seqiv_create(struct crypto_template *tmpl, struct rtattr **tb)
@@ -184,15 +178,9 @@ static int seqiv_create(struct crypto_template *tmpl, struct rtattr **tb)
return seqiv_aead_create(tmpl, tb);
}
-static void seqiv_free(struct crypto_instance *inst)
-{
- aead_geniv_free(aead_instance(inst));
-}
-
static struct crypto_template seqiv_tmpl = {
.name = "seqiv",
.create = seqiv_create,
- .free = seqiv_free,
.module = THIS_MODULE,
};
diff --git a/crypto/serpent_generic.c b/crypto/serpent_generic.c
index 56fa665a4f01..492c1d0bfe06 100644
--- a/crypto/serpent_generic.c
+++ b/crypto/serpent_generic.c
@@ -449,8 +449,9 @@ int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen)
}
EXPORT_SYMBOL_GPL(serpent_setkey);
-void __serpent_encrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src)
+void __serpent_encrypt(const void *c, u8 *dst, const u8 *src)
{
+ const struct serpent_ctx *ctx = c;
const u32 *k = ctx->expkey;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
@@ -514,8 +515,9 @@ static void serpent_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
__serpent_encrypt(ctx, dst, src);
}
-void __serpent_decrypt(struct serpent_ctx *ctx, u8 *dst, const u8 *src)
+void __serpent_decrypt(const void *c, u8 *dst, const u8 *src)
{
+ const struct serpent_ctx *ctx = c;
const u32 *k = ctx->expkey;
const __le32 *s = (const __le32 *)src;
__le32 *d = (__le32 *)dst;
diff --git a/crypto/shash.c b/crypto/shash.c
index e83c5124f6eb..c075b26c2a1d 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -50,8 +50,7 @@ static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
static void shash_set_needkey(struct crypto_shash *tfm, struct shash_alg *alg)
{
- if (crypto_shash_alg_has_setkey(alg) &&
- !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY))
+ if (crypto_shash_alg_needs_key(alg))
crypto_shash_set_flags(tfm, CRYPTO_TFM_NEED_KEY);
}
@@ -386,18 +385,51 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
return 0;
}
+static void crypto_shash_exit_tfm(struct crypto_tfm *tfm)
+{
+ struct crypto_shash *hash = __crypto_shash_cast(tfm);
+ struct shash_alg *alg = crypto_shash_alg(hash);
+
+ alg->exit_tfm(hash);
+}
+
static int crypto_shash_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_shash *hash = __crypto_shash_cast(tfm);
struct shash_alg *alg = crypto_shash_alg(hash);
+ int err;
hash->descsize = alg->descsize;
shash_set_needkey(hash, alg);
+ if (alg->exit_tfm)
+ tfm->exit = crypto_shash_exit_tfm;
+
+ if (!alg->init_tfm)
+ return 0;
+
+ err = alg->init_tfm(hash);
+ if (err)
+ return err;
+
+ /* ->init_tfm() may have increased the descsize. */
+ if (WARN_ON_ONCE(hash->descsize > HASH_MAX_DESCSIZE)) {
+ if (alg->exit_tfm)
+ alg->exit_tfm(hash);
+ return -EINVAL;
+ }
+
return 0;
}
+static void crypto_shash_free_instance(struct crypto_instance *inst)
+{
+ struct shash_instance *shash = shash_instance(inst);
+
+ shash->free(shash);
+}
+
#ifdef CONFIG_NET
static int crypto_shash_report(struct sk_buff *skb, struct crypto_alg *alg)
{
@@ -434,6 +466,7 @@ static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg)
static const struct crypto_type crypto_shash_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_shash_init_tfm,
+ .free = crypto_shash_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_shash_show,
#endif
@@ -444,6 +477,15 @@ static const struct crypto_type crypto_shash_type = {
.tfmsize = offsetof(struct crypto_shash, base),
};
+int crypto_grab_shash(struct crypto_shash_spawn *spawn,
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
+{
+ spawn->base.frontend = &crypto_shash_type;
+ return crypto_grab_spawn(&spawn->base, inst, name, type, mask);
+}
+EXPORT_SYMBOL_GPL(crypto_grab_shash);
+
struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type,
u32 mask)
{
@@ -495,9 +537,9 @@ int crypto_register_shash(struct shash_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_register_shash);
-int crypto_unregister_shash(struct shash_alg *alg)
+void crypto_unregister_shash(struct shash_alg *alg)
{
- return crypto_unregister_alg(&alg->base);
+ crypto_unregister_alg(&alg->base);
}
EXPORT_SYMBOL_GPL(crypto_unregister_shash);
@@ -521,19 +563,12 @@ err:
}
EXPORT_SYMBOL_GPL(crypto_register_shashes);
-int crypto_unregister_shashes(struct shash_alg *algs, int count)
+void crypto_unregister_shashes(struct shash_alg *algs, int count)
{
- int i, ret;
+ int i;
- for (i = count - 1; i >= 0; --i) {
- ret = crypto_unregister_shash(&algs[i]);
- if (ret)
- pr_err("Failed to unregister %s %s: %d\n",
- algs[i].base.cra_driver_name,
- algs[i].base.cra_name, ret);
- }
-
- return 0;
+ for (i = count - 1; i >= 0; --i)
+ crypto_unregister_shash(&algs[i]);
}
EXPORT_SYMBOL_GPL(crypto_unregister_shashes);
@@ -542,6 +577,9 @@ int shash_register_instance(struct crypto_template *tmpl,
{
int err;
+ if (WARN_ON(!inst->free))
+ return -EINVAL;
+
err = shash_prepare_alg(&inst->alg);
if (err)
return err;
@@ -550,31 +588,12 @@ int shash_register_instance(struct crypto_template *tmpl,
}
EXPORT_SYMBOL_GPL(shash_register_instance);
-void shash_free_instance(struct crypto_instance *inst)
-{
- crypto_drop_spawn(crypto_instance_ctx(inst));
- kfree(shash_instance(inst));
-}
-EXPORT_SYMBOL_GPL(shash_free_instance);
-
-int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
- struct shash_alg *alg,
- struct crypto_instance *inst)
+void shash_free_singlespawn_instance(struct shash_instance *inst)
{
- return crypto_init_spawn2(&spawn->base, &alg->base, inst,
- &crypto_shash_type);
-}
-EXPORT_SYMBOL_GPL(crypto_init_shash_spawn);
-
-struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask)
-{
- struct crypto_alg *alg;
-
- alg = crypto_attr_alg2(rta, &crypto_shash_type, type, mask);
- return IS_ERR(alg) ? ERR_CAST(alg) :
- container_of(alg, struct shash_alg, base);
+ crypto_drop_spawn(shash_instance_ctx(inst));
+ kfree(inst);
}
-EXPORT_SYMBOL_GPL(shash_attr_alg);
+EXPORT_SYMBOL_GPL(shash_free_singlespawn_instance);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Synchronous cryptographic hash type");
diff --git a/crypto/simd.c b/crypto/simd.c
index 48876266cf2d..56885af49c24 100644
--- a/crypto/simd.c
+++ b/crypto/simd.c
@@ -52,15 +52,11 @@ static int simd_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
{
struct simd_skcipher_ctx *ctx = crypto_skcipher_ctx(tfm);
struct crypto_skcipher *child = &ctx->cryptd_tfm->base;
- int err;
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_skcipher_setkey(child, key, key_len);
- crypto_skcipher_set_flags(tfm, crypto_skcipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
- return err;
+ return crypto_skcipher_setkey(child, key, key_len);
}
static int simd_skcipher_encrypt(struct skcipher_request *req)
@@ -295,15 +291,11 @@ static int simd_aead_setkey(struct crypto_aead *tfm, const u8 *key,
{
struct simd_aead_ctx *ctx = crypto_aead_ctx(tfm);
struct crypto_aead *child = &ctx->cryptd_tfm->base;
- int err;
crypto_aead_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(child, crypto_aead_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_aead_setkey(child, key, key_len);
- crypto_aead_set_flags(tfm, crypto_aead_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
- return err;
+ return crypto_aead_setkey(child, key, key_len);
}
static int simd_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index 13da43c84b64..7221def7b9a7 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -549,15 +549,6 @@ static int skcipher_walk_aead_common(struct skcipher_walk *walk,
return err;
}
-int skcipher_walk_aead(struct skcipher_walk *walk, struct aead_request *req,
- bool atomic)
-{
- walk->total = req->cryptlen;
-
- return skcipher_walk_aead_common(walk, req, atomic);
-}
-EXPORT_SYMBOL_GPL(skcipher_walk_aead);
-
int skcipher_walk_aead_encrypt(struct skcipher_walk *walk,
struct aead_request *req, bool atomic)
{
@@ -578,14 +569,9 @@ int skcipher_walk_aead_decrypt(struct skcipher_walk *walk,
}
EXPORT_SYMBOL_GPL(skcipher_walk_aead_decrypt);
-static unsigned int crypto_skcipher_extsize(struct crypto_alg *alg)
-{
- return crypto_alg_extsize(alg);
-}
-
static void skcipher_set_needkey(struct crypto_skcipher *tfm)
{
- if (tfm->keysize)
+ if (crypto_skcipher_max_keysize(tfm) != 0)
crypto_skcipher_set_flags(tfm, CRYPTO_TFM_NEED_KEY);
}
@@ -610,17 +596,15 @@ static int skcipher_setkey_unaligned(struct crypto_skcipher *tfm,
return ret;
}
-static int skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
+int crypto_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct skcipher_alg *cipher = crypto_skcipher_alg(tfm);
unsigned long alignmask = crypto_skcipher_alignmask(tfm);
int err;
- if (keylen < cipher->min_keysize || keylen > cipher->max_keysize) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen < cipher->min_keysize || keylen > cipher->max_keysize)
return -EINVAL;
- }
if ((unsigned long)key & alignmask)
err = skcipher_setkey_unaligned(tfm, key, keylen);
@@ -635,6 +619,7 @@ static int skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
crypto_skcipher_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
return 0;
}
+EXPORT_SYMBOL_GPL(crypto_skcipher_setkey);
int crypto_skcipher_encrypt(struct skcipher_request *req)
{
@@ -647,7 +632,7 @@ int crypto_skcipher_encrypt(struct skcipher_request *req)
if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
ret = -ENOKEY;
else
- ret = tfm->encrypt(req);
+ ret = crypto_skcipher_alg(tfm)->encrypt(req);
crypto_stats_skcipher_encrypt(cryptlen, ret, alg);
return ret;
}
@@ -664,7 +649,7 @@ int crypto_skcipher_decrypt(struct skcipher_request *req)
if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
ret = -ENOKEY;
else
- ret = tfm->decrypt(req);
+ ret = crypto_skcipher_alg(tfm)->decrypt(req);
crypto_stats_skcipher_decrypt(cryptlen, ret, alg);
return ret;
}
@@ -683,12 +668,6 @@ static int crypto_skcipher_init_tfm(struct crypto_tfm *tfm)
struct crypto_skcipher *skcipher = __crypto_skcipher_cast(tfm);
struct skcipher_alg *alg = crypto_skcipher_alg(skcipher);
- skcipher->setkey = skcipher_setkey;
- skcipher->encrypt = alg->encrypt;
- skcipher->decrypt = alg->decrypt;
- skcipher->ivsize = alg->ivsize;
- skcipher->keysize = alg->max_keysize;
-
skcipher_set_needkey(skcipher);
if (alg->exit)
@@ -754,7 +733,7 @@ static int crypto_skcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
#endif
static const struct crypto_type crypto_skcipher_type = {
- .extsize = crypto_skcipher_extsize,
+ .extsize = crypto_alg_extsize,
.init_tfm = crypto_skcipher_init_tfm,
.free = crypto_skcipher_free_instance,
#ifdef CONFIG_PROC_FS
@@ -768,10 +747,11 @@ static const struct crypto_type crypto_skcipher_type = {
};
int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn,
- const char *name, u32 type, u32 mask)
+ struct crypto_instance *inst,
+ const char *name, u32 type, u32 mask)
{
spawn->base.frontend = &crypto_skcipher_type;
- return crypto_grab_spawn(&spawn->base, name, type, mask);
+ return crypto_grab_spawn(&spawn->base, inst, name, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_grab_skcipher);
@@ -885,6 +865,9 @@ int skcipher_register_instance(struct crypto_template *tmpl,
{
int err;
+ if (WARN_ON(!inst->free))
+ return -EINVAL;
+
err = skcipher_prepare_alg(&inst->alg);
if (err)
return err;
@@ -897,21 +880,17 @@ static int skcipher_setkey_simple(struct crypto_skcipher *tfm, const u8 *key,
unsigned int keylen)
{
struct crypto_cipher *cipher = skcipher_cipher_simple(tfm);
- int err;
crypto_cipher_clear_flags(cipher, CRYPTO_TFM_REQ_MASK);
crypto_cipher_set_flags(cipher, crypto_skcipher_get_flags(tfm) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_cipher_setkey(cipher, key, keylen);
- crypto_skcipher_set_flags(tfm, crypto_cipher_get_flags(cipher) &
- CRYPTO_TFM_RES_MASK);
- return err;
+ return crypto_cipher_setkey(cipher, key, keylen);
}
static int skcipher_init_tfm_simple(struct crypto_skcipher *tfm)
{
struct skcipher_instance *inst = skcipher_alg_instance(tfm);
- struct crypto_spawn *spawn = skcipher_instance_ctx(inst);
+ struct crypto_cipher_spawn *spawn = skcipher_instance_ctx(inst);
struct skcipher_ctx_simple *ctx = crypto_skcipher_ctx(tfm);
struct crypto_cipher *cipher;
@@ -932,7 +911,7 @@ static void skcipher_exit_tfm_simple(struct crypto_skcipher *tfm)
static void skcipher_free_instance_simple(struct skcipher_instance *inst)
{
- crypto_drop_spawn(skcipher_instance_ctx(inst));
+ crypto_drop_cipher(skcipher_instance_ctx(inst));
kfree(inst);
}
@@ -948,21 +927,18 @@ static void skcipher_free_instance_simple(struct skcipher_instance *inst)
*
* @tmpl: the template being instantiated
* @tb: the template parameters
- * @cipher_alg_ret: on success, a pointer to the underlying cipher algorithm is
- * returned here. It must be dropped with crypto_mod_put().
*
* Return: a pointer to the new instance, or an ERR_PTR(). The caller still
* needs to register the instance.
*/
-struct skcipher_instance *
-skcipher_alloc_instance_simple(struct crypto_template *tmpl, struct rtattr **tb,
- struct crypto_alg **cipher_alg_ret)
+struct skcipher_instance *skcipher_alloc_instance_simple(
+ struct crypto_template *tmpl, struct rtattr **tb)
{
struct crypto_attr_type *algt;
- struct crypto_alg *cipher_alg;
- struct skcipher_instance *inst;
- struct crypto_spawn *spawn;
u32 mask;
+ struct skcipher_instance *inst;
+ struct crypto_cipher_spawn *spawn;
+ struct crypto_alg *cipher_alg;
int err;
algt = crypto_get_attr_type(tb);
@@ -972,31 +948,25 @@ skcipher_alloc_instance_simple(struct crypto_template *tmpl, struct rtattr **tb,
if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
return ERR_PTR(-EINVAL);
- mask = CRYPTO_ALG_TYPE_MASK |
- crypto_requires_off(algt->type, algt->mask,
- CRYPTO_ALG_NEED_FALLBACK);
-
- cipher_alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER, mask);
- if (IS_ERR(cipher_alg))
- return ERR_CAST(cipher_alg);
+ mask = crypto_requires_off(algt->type, algt->mask,
+ CRYPTO_ALG_NEED_FALLBACK);
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
- if (!inst) {
- err = -ENOMEM;
- goto err_put_cipher_alg;
- }
+ if (!inst)
+ return ERR_PTR(-ENOMEM);
spawn = skcipher_instance_ctx(inst);
- err = crypto_inst_setname(skcipher_crypto_instance(inst), tmpl->name,
- cipher_alg);
+ err = crypto_grab_cipher(spawn, skcipher_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, mask);
if (err)
goto err_free_inst;
+ cipher_alg = crypto_spawn_cipher_alg(spawn);
- err = crypto_init_spawn(spawn, cipher_alg,
- skcipher_crypto_instance(inst),
- CRYPTO_ALG_TYPE_MASK);
+ err = crypto_inst_setname(skcipher_crypto_instance(inst), tmpl->name,
+ cipher_alg);
if (err)
goto err_free_inst;
+
inst->free = skcipher_free_instance_simple;
/* Default algorithm properties, can be overridden */
@@ -1013,13 +983,10 @@ skcipher_alloc_instance_simple(struct crypto_template *tmpl, struct rtattr **tb,
inst->alg.init = skcipher_init_tfm_simple;
inst->alg.exit = skcipher_exit_tfm_simple;
- *cipher_alg_ret = cipher_alg;
return inst;
err_free_inst:
- kfree(inst);
-err_put_cipher_alg:
- crypto_mod_put(cipher_alg);
+ skcipher_free_instance_simple(inst);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(skcipher_alloc_instance_simple);
diff --git a/crypto/sm4_generic.c b/crypto/sm4_generic.c
index 71ffb343709a..016dbc595705 100644
--- a/crypto/sm4_generic.c
+++ b/crypto/sm4_generic.c
@@ -143,29 +143,23 @@ int crypto_sm4_expand_key(struct crypto_sm4_ctx *ctx, const u8 *in_key,
EXPORT_SYMBOL_GPL(crypto_sm4_expand_key);
/**
- * crypto_sm4_set_key - Set the AES key.
+ * crypto_sm4_set_key - Set the SM4 key.
* @tfm: The %crypto_tfm that is used in the context.
* @in_key: The input key.
* @key_len: The size of the key.
*
- * Returns 0 on success, on failure the %CRYPTO_TFM_RES_BAD_KEY_LEN flag in tfm
- * is set. The function uses crypto_sm4_expand_key() to expand the key.
+ * This function uses crypto_sm4_expand_key() to expand the key.
* &crypto_sm4_ctx _must_ be the private data embedded in @tfm which is
* retrieved with crypto_tfm_ctx().
+ *
+ * Return: 0 on success; -EINVAL on failure (only happens for bad key lengths)
*/
int crypto_sm4_set_key(struct crypto_tfm *tfm, const u8 *in_key,
unsigned int key_len)
{
struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
- int ret;
-
- ret = crypto_sm4_expand_key(ctx, in_key, key_len);
- if (!ret)
- return 0;
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
+ return crypto_sm4_expand_key(ctx, in_key, key_len);
}
EXPORT_SYMBOL_GPL(crypto_sm4_set_key);
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 82513b6b0abd..88f33c0efb23 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -82,6 +82,19 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
struct aead_test_suite {
const struct aead_testvec *vecs;
unsigned int count;
+
+ /*
+ * Set if trying to decrypt an inauthentic ciphertext with this
+ * algorithm might result in EINVAL rather than EBADMSG, due to other
+ * validation the algorithm does on the inputs such as length checks.
+ */
+ unsigned int einval_allowed : 1;
+
+ /*
+ * Set if the algorithm intentionally ignores the last 8 bytes of the
+ * AAD buffer during decryption.
+ */
+ unsigned int esp_aad : 1;
};
struct cipher_test_suite {
@@ -259,6 +272,9 @@ struct test_sg_division {
* where 0 is aligned to a 2*(MAX_ALGAPI_ALIGNMASK+1) byte boundary
* @iv_offset_relative_to_alignmask: if true, add the algorithm's alignmask to
* the @iv_offset
+ * @key_offset: misalignment of the key, where 0 is default alignment
+ * @key_offset_relative_to_alignmask: if true, add the algorithm's alignmask to
+ * the @key_offset
* @finalization_type: what finalization function to use for hashes
* @nosimd: execute with SIMD disabled? Requires !CRYPTO_TFM_REQ_MAY_SLEEP.
*/
@@ -269,7 +285,9 @@ struct testvec_config {
struct test_sg_division src_divs[XBUFSIZE];
struct test_sg_division dst_divs[XBUFSIZE];
unsigned int iv_offset;
+ unsigned int key_offset;
bool iv_offset_relative_to_alignmask;
+ bool key_offset_relative_to_alignmask;
enum finalization_type finalization_type;
bool nosimd;
};
@@ -297,6 +315,7 @@ static const struct testvec_config default_cipher_testvec_configs[] = {
.name = "unaligned buffer, offset=1",
.src_divs = { { .proportion_of_total = 10000, .offset = 1 } },
.iv_offset = 1,
+ .key_offset = 1,
}, {
.name = "buffer aligned only to alignmask",
.src_divs = {
@@ -308,6 +327,8 @@ static const struct testvec_config default_cipher_testvec_configs[] = {
},
.iv_offset = 1,
.iv_offset_relative_to_alignmask = true,
+ .key_offset = 1,
+ .key_offset_relative_to_alignmask = true,
}, {
.name = "two even aligned splits",
.src_divs = {
@@ -323,6 +344,7 @@ static const struct testvec_config default_cipher_testvec_configs[] = {
{ .proportion_of_total = 4800, .offset = 18 },
},
.iv_offset = 3,
+ .key_offset = 3,
}, {
.name = "misaligned splits crossing pages, inplace",
.inplace = true,
@@ -355,6 +377,7 @@ static const struct testvec_config default_hash_testvec_configs[] = {
.name = "init+update+final misaligned buffer",
.src_divs = { { .proportion_of_total = 10000, .offset = 1 } },
.finalization_type = FINALIZATION_TYPE_FINAL,
+ .key_offset = 1,
}, {
.name = "digest buffer aligned only to alignmask",
.src_divs = {
@@ -365,6 +388,8 @@ static const struct testvec_config default_hash_testvec_configs[] = {
},
},
.finalization_type = FINALIZATION_TYPE_DIGEST,
+ .key_offset = 1,
+ .key_offset_relative_to_alignmask = true,
}, {
.name = "init+update+update+final two even splits",
.src_divs = {
@@ -740,6 +765,49 @@ static int build_cipher_test_sglists(struct cipher_test_sglists *tsgls,
alignmask, dst_total_len, NULL, NULL);
}
+/*
+ * Support for testing passing a misaligned key to setkey():
+ *
+ * If cfg->key_offset is set, copy the key into a new buffer at that offset,
+ * optionally adding alignmask. Else, just use the key directly.
+ */
+static int prepare_keybuf(const u8 *key, unsigned int ksize,
+ const struct testvec_config *cfg,
+ unsigned int alignmask,
+ const u8 **keybuf_ret, const u8 **keyptr_ret)
+{
+ unsigned int key_offset = cfg->key_offset;
+ u8 *keybuf = NULL, *keyptr = (u8 *)key;
+
+ if (key_offset != 0) {
+ if (cfg->key_offset_relative_to_alignmask)
+ key_offset += alignmask;
+ keybuf = kmalloc(key_offset + ksize, GFP_KERNEL);
+ if (!keybuf)
+ return -ENOMEM;
+ keyptr = keybuf + key_offset;
+ memcpy(keyptr, key, ksize);
+ }
+ *keybuf_ret = keybuf;
+ *keyptr_ret = keyptr;
+ return 0;
+}
+
+/* Like setkey_f(tfm, key, ksize), but sometimes misalign the key */
+#define do_setkey(setkey_f, tfm, key, ksize, cfg, alignmask) \
+({ \
+ const u8 *keybuf, *keyptr; \
+ int err; \
+ \
+ err = prepare_keybuf((key), (ksize), (cfg), (alignmask), \
+ &keybuf, &keyptr); \
+ if (err == 0) { \
+ err = setkey_f((tfm), keyptr, (ksize)); \
+ kfree(keybuf); \
+ } \
+ err; \
+})
+
#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
/* Generate a random length in range [0, max_len], but prefer smaller values */
@@ -759,27 +827,39 @@ static unsigned int generate_random_length(unsigned int max_len)
}
}
-/* Sometimes make some random changes to the given data buffer */
-static void mutate_buffer(u8 *buf, size_t count)
+/* Flip a random bit in the given nonempty data buffer */
+static void flip_random_bit(u8 *buf, size_t size)
+{
+ size_t bitpos;
+
+ bitpos = prandom_u32() % (size * 8);
+ buf[bitpos / 8] ^= 1 << (bitpos % 8);
+}
+
+/* Flip a random byte in the given nonempty data buffer */
+static void flip_random_byte(u8 *buf, size_t size)
+{
+ buf[prandom_u32() % size] ^= 0xff;
+}
+
+/* Sometimes make some random changes to the given nonempty data buffer */
+static void mutate_buffer(u8 *buf, size_t size)
{
size_t num_flips;
size_t i;
- size_t pos;
/* Sometimes flip some bits */
if (prandom_u32() % 4 == 0) {
- num_flips = min_t(size_t, 1 << (prandom_u32() % 8), count * 8);
- for (i = 0; i < num_flips; i++) {
- pos = prandom_u32() % (count * 8);
- buf[pos / 8] ^= 1 << (pos % 8);
- }
+ num_flips = min_t(size_t, 1 << (prandom_u32() % 8), size * 8);
+ for (i = 0; i < num_flips; i++)
+ flip_random_bit(buf, size);
}
/* Sometimes flip some bytes */
if (prandom_u32() % 4 == 0) {
- num_flips = min_t(size_t, 1 << (prandom_u32() % 8), count);
+ num_flips = min_t(size_t, 1 << (prandom_u32() % 8), size);
for (i = 0; i < num_flips; i++)
- buf[prandom_u32() % count] ^= 0xff;
+ flip_random_byte(buf, size);
}
}
@@ -966,6 +1046,11 @@ static void generate_random_testvec_config(struct testvec_config *cfg,
p += scnprintf(p, end - p, " iv_offset=%u", cfg->iv_offset);
}
+ if (prandom_u32() % 2 == 0) {
+ cfg->key_offset = 1 + (prandom_u32() % MAX_ALGAPI_ALIGNMASK);
+ p += scnprintf(p, end - p, " key_offset=%u", cfg->key_offset);
+ }
+
WARN_ON_ONCE(!valid_testvec_config(cfg));
}
@@ -1103,7 +1188,8 @@ static int test_shash_vec_cfg(const char *driver,
/* Set the key, if specified */
if (vec->ksize) {
- err = crypto_shash_setkey(tfm, vec->key, vec->ksize);
+ err = do_setkey(crypto_shash_setkey, tfm, vec->key, vec->ksize,
+ cfg, alignmask);
if (err) {
if (err == vec->setkey_error)
return 0;
@@ -1290,7 +1376,8 @@ static int test_ahash_vec_cfg(const char *driver,
/* Set the key, if specified */
if (vec->ksize) {
- err = crypto_ahash_setkey(tfm, vec->key, vec->ksize);
+ err = do_setkey(crypto_ahash_setkey, tfm, vec->key, vec->ksize,
+ cfg, alignmask);
if (err) {
if (err == vec->setkey_error)
return 0;
@@ -1853,7 +1940,6 @@ static int test_aead_vec_cfg(const char *driver, int enc,
cfg->iv_offset +
(cfg->iv_offset_relative_to_alignmask ? alignmask : 0);
struct kvec input[2];
- int expected_error;
int err;
/* Set the key */
@@ -1861,7 +1947,9 @@ static int test_aead_vec_cfg(const char *driver, int enc,
crypto_aead_set_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
else
crypto_aead_clear_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
- err = crypto_aead_setkey(tfm, vec->key, vec->klen);
+
+ err = do_setkey(crypto_aead_setkey, tfm, vec->key, vec->klen,
+ cfg, alignmask);
if (err && err != vec->setkey_error) {
pr_err("alg: aead: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
driver, vec_name, vec->setkey_error, err,
@@ -1972,20 +2060,31 @@ static int test_aead_vec_cfg(const char *driver, int enc,
return -EINVAL;
}
- /* Check for success or failure */
- expected_error = vec->novrfy ? -EBADMSG : vec->crypt_error;
- if (err) {
- if (err == expected_error)
- return 0;
- pr_err("alg: aead: %s %s failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
- driver, op, vec_name, expected_error, err, cfg->name);
- return err;
- }
- if (expected_error) {
- pr_err("alg: aead: %s %s unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
+ /* Check for unexpected success or failure, or wrong error code */
+ if ((err == 0 && vec->novrfy) ||
+ (err != vec->crypt_error && !(err == -EBADMSG && vec->novrfy))) {
+ char expected_error[32];
+
+ if (vec->novrfy &&
+ vec->crypt_error != 0 && vec->crypt_error != -EBADMSG)
+ sprintf(expected_error, "-EBADMSG or %d",
+ vec->crypt_error);
+ else if (vec->novrfy)
+ sprintf(expected_error, "-EBADMSG");
+ else
+ sprintf(expected_error, "%d", vec->crypt_error);
+ if (err) {
+ pr_err("alg: aead: %s %s failed on test vector %s; expected_error=%s, actual_error=%d, cfg=\"%s\"\n",
+ driver, op, vec_name, expected_error, err,
+ cfg->name);
+ return err;
+ }
+ pr_err("alg: aead: %s %s unexpectedly succeeded on test vector %s; expected_error=%s, cfg=\"%s\"\n",
driver, op, vec_name, expected_error, cfg->name);
return -EINVAL;
}
+ if (err) /* Expectedly failed. */
+ return 0;
/* Check for the correct output (ciphertext or plaintext) */
err = verify_correct_output(&tsgls->dst, enc ? vec->ctext : vec->ptext,
@@ -2047,25 +2146,129 @@ static int test_aead_vec(const char *driver, int enc,
}
#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
+
+struct aead_extra_tests_ctx {
+ struct aead_request *req;
+ struct crypto_aead *tfm;
+ const char *driver;
+ const struct alg_test_desc *test_desc;
+ struct cipher_test_sglists *tsgls;
+ unsigned int maxdatasize;
+ unsigned int maxkeysize;
+
+ struct aead_testvec vec;
+ char vec_name[64];
+ char cfgname[TESTVEC_CONFIG_NAMELEN];
+ struct testvec_config cfg;
+};
+
/*
- * Generate an AEAD test vector from the given implementation.
- * Assumes the buffers in 'vec' were already allocated.
+ * Make at least one random change to a (ciphertext, AAD) pair. "Ciphertext"
+ * here means the full ciphertext including the authentication tag. The
+ * authentication tag (and hence also the ciphertext) is assumed to be nonempty.
+ */
+static void mutate_aead_message(struct aead_testvec *vec, bool esp_aad)
+{
+ const unsigned int aad_tail_size = esp_aad ? 8 : 0;
+ const unsigned int authsize = vec->clen - vec->plen;
+
+ if (prandom_u32() % 2 == 0 && vec->alen > aad_tail_size) {
+ /* Mutate the AAD */
+ flip_random_bit((u8 *)vec->assoc, vec->alen - aad_tail_size);
+ if (prandom_u32() % 2 == 0)
+ return;
+ }
+ if (prandom_u32() % 2 == 0) {
+ /* Mutate auth tag (assuming it's at the end of ciphertext) */
+ flip_random_bit((u8 *)vec->ctext + vec->plen, authsize);
+ } else {
+ /* Mutate any part of the ciphertext */
+ flip_random_bit((u8 *)vec->ctext, vec->clen);
+ }
+}
+
+/*
+ * Minimum authentication tag size in bytes at which we assume that we can
+ * reliably generate inauthentic messages, i.e. not generate an authentic
+ * message by chance.
+ */
+#define MIN_COLLISION_FREE_AUTHSIZE 8
+
+static void generate_aead_message(struct aead_request *req,
+ const struct aead_test_suite *suite,
+ struct aead_testvec *vec,
+ bool prefer_inauthentic)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ const unsigned int ivsize = crypto_aead_ivsize(tfm);
+ const unsigned int authsize = vec->clen - vec->plen;
+ const bool inauthentic = (authsize >= MIN_COLLISION_FREE_AUTHSIZE) &&
+ (prefer_inauthentic || prandom_u32() % 4 == 0);
+
+ /* Generate the AAD. */
+ generate_random_bytes((u8 *)vec->assoc, vec->alen);
+
+ if (inauthentic && prandom_u32() % 2 == 0) {
+ /* Generate a random ciphertext. */
+ generate_random_bytes((u8 *)vec->ctext, vec->clen);
+ } else {
+ int i = 0;
+ struct scatterlist src[2], dst;
+ u8 iv[MAX_IVLEN];
+ DECLARE_CRYPTO_WAIT(wait);
+
+ /* Generate a random plaintext and encrypt it. */
+ sg_init_table(src, 2);
+ if (vec->alen)
+ sg_set_buf(&src[i++], vec->assoc, vec->alen);
+ if (vec->plen) {
+ generate_random_bytes((u8 *)vec->ptext, vec->plen);
+ sg_set_buf(&src[i++], vec->ptext, vec->plen);
+ }
+ sg_init_one(&dst, vec->ctext, vec->alen + vec->clen);
+ memcpy(iv, vec->iv, ivsize);
+ aead_request_set_callback(req, 0, crypto_req_done, &wait);
+ aead_request_set_crypt(req, src, &dst, vec->plen, iv);
+ aead_request_set_ad(req, vec->alen);
+ vec->crypt_error = crypto_wait_req(crypto_aead_encrypt(req),
+ &wait);
+ /* If encryption failed, we're done. */
+ if (vec->crypt_error != 0)
+ return;
+ memmove((u8 *)vec->ctext, vec->ctext + vec->alen, vec->clen);
+ if (!inauthentic)
+ return;
+ /*
+ * Mutate the authentic (ciphertext, AAD) pair to get an
+ * inauthentic one.
+ */
+ mutate_aead_message(vec, suite->esp_aad);
+ }
+ vec->novrfy = 1;
+ if (suite->einval_allowed)
+ vec->crypt_error = -EINVAL;
+}
+
+/*
+ * Generate an AEAD test vector 'vec' using the implementation specified by
+ * 'req'. The buffers in 'vec' must already be allocated.
+ *
+ * If 'prefer_inauthentic' is true, then this function will generate inauthentic
+ * test vectors (i.e. vectors with 'vec->novrfy=1') more often.
*/
static void generate_random_aead_testvec(struct aead_request *req,
struct aead_testvec *vec,
+ const struct aead_test_suite *suite,
unsigned int maxkeysize,
unsigned int maxdatasize,
- char *name, size_t max_namelen)
+ char *name, size_t max_namelen,
+ bool prefer_inauthentic)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
const unsigned int ivsize = crypto_aead_ivsize(tfm);
- unsigned int maxauthsize = crypto_aead_alg(tfm)->maxauthsize;
+ const unsigned int maxauthsize = crypto_aead_maxauthsize(tfm);
unsigned int authsize;
unsigned int total_len;
- int i;
- struct scatterlist src[2], dst;
- u8 iv[MAX_IVLEN];
- DECLARE_CRYPTO_WAIT(wait);
/* Key: length in [0, maxkeysize], but usually choose maxkeysize */
vec->klen = maxkeysize;
@@ -2081,81 +2284,101 @@ static void generate_random_aead_testvec(struct aead_request *req,
authsize = maxauthsize;
if (prandom_u32() % 4 == 0)
authsize = prandom_u32() % (maxauthsize + 1);
+ if (prefer_inauthentic && authsize < MIN_COLLISION_FREE_AUTHSIZE)
+ authsize = MIN_COLLISION_FREE_AUTHSIZE;
if (WARN_ON(authsize > maxdatasize))
authsize = maxdatasize;
maxdatasize -= authsize;
vec->setauthsize_error = crypto_aead_setauthsize(tfm, authsize);
- /* Plaintext and associated data */
+ /* AAD, plaintext, and ciphertext lengths */
total_len = generate_random_length(maxdatasize);
if (prandom_u32() % 4 == 0)
vec->alen = 0;
else
vec->alen = generate_random_length(total_len);
vec->plen = total_len - vec->alen;
- generate_random_bytes((u8 *)vec->assoc, vec->alen);
- generate_random_bytes((u8 *)vec->ptext, vec->plen);
-
vec->clen = vec->plen + authsize;
/*
- * If the key or authentication tag size couldn't be set, no need to
- * continue to encrypt.
+ * Generate the AAD, plaintext, and ciphertext. Not applicable if the
+ * key or the authentication tag size couldn't be set.
*/
- if (vec->setkey_error || vec->setauthsize_error)
- goto done;
-
- /* Ciphertext */
- sg_init_table(src, 2);
- i = 0;
- if (vec->alen)
- sg_set_buf(&src[i++], vec->assoc, vec->alen);
- if (vec->plen)
- sg_set_buf(&src[i++], vec->ptext, vec->plen);
- sg_init_one(&dst, vec->ctext, vec->alen + vec->clen);
- memcpy(iv, vec->iv, ivsize);
- aead_request_set_callback(req, 0, crypto_req_done, &wait);
- aead_request_set_crypt(req, src, &dst, vec->plen, iv);
- aead_request_set_ad(req, vec->alen);
- vec->crypt_error = crypto_wait_req(crypto_aead_encrypt(req), &wait);
- if (vec->crypt_error == 0)
- memmove((u8 *)vec->ctext, vec->ctext + vec->alen, vec->clen);
-done:
+ vec->novrfy = 0;
+ vec->crypt_error = 0;
+ if (vec->setkey_error == 0 && vec->setauthsize_error == 0)
+ generate_aead_message(req, suite, vec, prefer_inauthentic);
snprintf(name, max_namelen,
- "\"random: alen=%u plen=%u authsize=%u klen=%u\"",
- vec->alen, vec->plen, authsize, vec->klen);
+ "\"random: alen=%u plen=%u authsize=%u klen=%u novrfy=%d\"",
+ vec->alen, vec->plen, authsize, vec->klen, vec->novrfy);
+}
+
+static void try_to_generate_inauthentic_testvec(
+ struct aead_extra_tests_ctx *ctx)
+{
+ int i;
+
+ for (i = 0; i < 10; i++) {
+ generate_random_aead_testvec(ctx->req, &ctx->vec,
+ &ctx->test_desc->suite.aead,
+ ctx->maxkeysize, ctx->maxdatasize,
+ ctx->vec_name,
+ sizeof(ctx->vec_name), true);
+ if (ctx->vec.novrfy)
+ return;
+ }
}
/*
- * Test the AEAD algorithm represented by @req against the corresponding generic
- * implementation, if one is available.
+ * Generate inauthentic test vectors (i.e. ciphertext, AAD pairs that aren't the
+ * result of an encryption with the key) and verify that decryption fails.
*/
-static int test_aead_vs_generic_impl(const char *driver,
- const struct alg_test_desc *test_desc,
- struct aead_request *req,
- struct cipher_test_sglists *tsgls)
+static int test_aead_inauthentic_inputs(struct aead_extra_tests_ctx *ctx)
{
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- const unsigned int ivsize = crypto_aead_ivsize(tfm);
- const unsigned int maxauthsize = crypto_aead_alg(tfm)->maxauthsize;
- const unsigned int blocksize = crypto_aead_blocksize(tfm);
- const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
+ unsigned int i;
+ int err;
+
+ for (i = 0; i < fuzz_iterations * 8; i++) {
+ /*
+ * Since this part of the tests isn't comparing the
+ * implementation to another, there's no point in testing any
+ * test vectors other than inauthentic ones (vec.novrfy=1) here.
+ *
+ * If we're having trouble generating such a test vector, e.g.
+ * if the algorithm keeps rejecting the generated keys, don't
+ * retry forever; just continue on.
+ */
+ try_to_generate_inauthentic_testvec(ctx);
+ if (ctx->vec.novrfy) {
+ generate_random_testvec_config(&ctx->cfg, ctx->cfgname,
+ sizeof(ctx->cfgname));
+ err = test_aead_vec_cfg(ctx->driver, DECRYPT, &ctx->vec,
+ ctx->vec_name, &ctx->cfg,
+ ctx->req, ctx->tsgls);
+ if (err)
+ return err;
+ }
+ cond_resched();
+ }
+ return 0;
+}
+
+/*
+ * Test the AEAD algorithm against the corresponding generic implementation, if
+ * one is available.
+ */
+static int test_aead_vs_generic_impl(struct aead_extra_tests_ctx *ctx)
+{
+ struct crypto_aead *tfm = ctx->tfm;
const char *algname = crypto_aead_alg(tfm)->base.cra_name;
- const char *generic_driver = test_desc->generic_driver;
+ const char *driver = ctx->driver;
+ const char *generic_driver = ctx->test_desc->generic_driver;
char _generic_driver[CRYPTO_MAX_ALG_NAME];
struct crypto_aead *generic_tfm = NULL;
struct aead_request *generic_req = NULL;
- unsigned int maxkeysize;
unsigned int i;
- struct aead_testvec vec = { 0 };
- char vec_name[64];
- struct testvec_config *cfg;
- char cfgname[TESTVEC_CONFIG_NAMELEN];
int err;
- if (noextratests)
- return 0;
-
if (!generic_driver) { /* Use default naming convention? */
err = build_generic_driver_name(algname, _generic_driver);
if (err)
@@ -2179,12 +2402,6 @@ static int test_aead_vs_generic_impl(const char *driver,
return err;
}
- cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
- if (!cfg) {
- err = -ENOMEM;
- goto out;
- }
-
generic_req = aead_request_alloc(generic_tfm, GFP_KERNEL);
if (!generic_req) {
err = -ENOMEM;
@@ -2193,24 +2410,27 @@ static int test_aead_vs_generic_impl(const char *driver,
/* Check the algorithm properties for consistency. */
- if (maxauthsize != crypto_aead_alg(generic_tfm)->maxauthsize) {
+ if (crypto_aead_maxauthsize(tfm) !=
+ crypto_aead_maxauthsize(generic_tfm)) {
pr_err("alg: aead: maxauthsize for %s (%u) doesn't match generic impl (%u)\n",
- driver, maxauthsize,
- crypto_aead_alg(generic_tfm)->maxauthsize);
+ driver, crypto_aead_maxauthsize(tfm),
+ crypto_aead_maxauthsize(generic_tfm));
err = -EINVAL;
goto out;
}
- if (ivsize != crypto_aead_ivsize(generic_tfm)) {
+ if (crypto_aead_ivsize(tfm) != crypto_aead_ivsize(generic_tfm)) {
pr_err("alg: aead: ivsize for %s (%u) doesn't match generic impl (%u)\n",
- driver, ivsize, crypto_aead_ivsize(generic_tfm));
+ driver, crypto_aead_ivsize(tfm),
+ crypto_aead_ivsize(generic_tfm));
err = -EINVAL;
goto out;
}
- if (blocksize != crypto_aead_blocksize(generic_tfm)) {
+ if (crypto_aead_blocksize(tfm) != crypto_aead_blocksize(generic_tfm)) {
pr_err("alg: aead: blocksize for %s (%u) doesn't match generic impl (%u)\n",
- driver, blocksize, crypto_aead_blocksize(generic_tfm));
+ driver, crypto_aead_blocksize(tfm),
+ crypto_aead_blocksize(generic_tfm));
err = -EINVAL;
goto out;
}
@@ -2219,55 +2439,93 @@ static int test_aead_vs_generic_impl(const char *driver,
* Now generate test vectors using the generic implementation, and test
* the other implementation against them.
*/
+ for (i = 0; i < fuzz_iterations * 8; i++) {
+ generate_random_aead_testvec(generic_req, &ctx->vec,
+ &ctx->test_desc->suite.aead,
+ ctx->maxkeysize, ctx->maxdatasize,
+ ctx->vec_name,
+ sizeof(ctx->vec_name), false);
+ generate_random_testvec_config(&ctx->cfg, ctx->cfgname,
+ sizeof(ctx->cfgname));
+ if (!ctx->vec.novrfy) {
+ err = test_aead_vec_cfg(driver, ENCRYPT, &ctx->vec,
+ ctx->vec_name, &ctx->cfg,
+ ctx->req, ctx->tsgls);
+ if (err)
+ goto out;
+ }
+ if (ctx->vec.crypt_error == 0 || ctx->vec.novrfy) {
+ err = test_aead_vec_cfg(driver, DECRYPT, &ctx->vec,
+ ctx->vec_name, &ctx->cfg,
+ ctx->req, ctx->tsgls);
+ if (err)
+ goto out;
+ }
+ cond_resched();
+ }
+ err = 0;
+out:
+ crypto_free_aead(generic_tfm);
+ aead_request_free(generic_req);
+ return err;
+}
- maxkeysize = 0;
- for (i = 0; i < test_desc->suite.aead.count; i++)
- maxkeysize = max_t(unsigned int, maxkeysize,
- test_desc->suite.aead.vecs[i].klen);
+static int test_aead_extra(const char *driver,
+ const struct alg_test_desc *test_desc,
+ struct aead_request *req,
+ struct cipher_test_sglists *tsgls)
+{
+ struct aead_extra_tests_ctx *ctx;
+ unsigned int i;
+ int err;
- vec.key = kmalloc(maxkeysize, GFP_KERNEL);
- vec.iv = kmalloc(ivsize, GFP_KERNEL);
- vec.assoc = kmalloc(maxdatasize, GFP_KERNEL);
- vec.ptext = kmalloc(maxdatasize, GFP_KERNEL);
- vec.ctext = kmalloc(maxdatasize, GFP_KERNEL);
- if (!vec.key || !vec.iv || !vec.assoc || !vec.ptext || !vec.ctext) {
+ if (noextratests)
+ return 0;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+ ctx->req = req;
+ ctx->tfm = crypto_aead_reqtfm(req);
+ ctx->driver = driver;
+ ctx->test_desc = test_desc;
+ ctx->tsgls = tsgls;
+ ctx->maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
+ ctx->maxkeysize = 0;
+ for (i = 0; i < test_desc->suite.aead.count; i++)
+ ctx->maxkeysize = max_t(unsigned int, ctx->maxkeysize,
+ test_desc->suite.aead.vecs[i].klen);
+
+ ctx->vec.key = kmalloc(ctx->maxkeysize, GFP_KERNEL);
+ ctx->vec.iv = kmalloc(crypto_aead_ivsize(ctx->tfm), GFP_KERNEL);
+ ctx->vec.assoc = kmalloc(ctx->maxdatasize, GFP_KERNEL);
+ ctx->vec.ptext = kmalloc(ctx->maxdatasize, GFP_KERNEL);
+ ctx->vec.ctext = kmalloc(ctx->maxdatasize, GFP_KERNEL);
+ if (!ctx->vec.key || !ctx->vec.iv || !ctx->vec.assoc ||
+ !ctx->vec.ptext || !ctx->vec.ctext) {
err = -ENOMEM;
goto out;
}
- for (i = 0; i < fuzz_iterations * 8; i++) {
- generate_random_aead_testvec(generic_req, &vec,
- maxkeysize, maxdatasize,
- vec_name, sizeof(vec_name));
- generate_random_testvec_config(cfg, cfgname, sizeof(cfgname));
+ err = test_aead_inauthentic_inputs(ctx);
+ if (err)
+ goto out;
- err = test_aead_vec_cfg(driver, ENCRYPT, &vec, vec_name, cfg,
- req, tsgls);
- if (err)
- goto out;
- err = test_aead_vec_cfg(driver, DECRYPT, &vec, vec_name, cfg,
- req, tsgls);
- if (err)
- goto out;
- cond_resched();
- }
- err = 0;
+ err = test_aead_vs_generic_impl(ctx);
out:
- kfree(cfg);
- kfree(vec.key);
- kfree(vec.iv);
- kfree(vec.assoc);
- kfree(vec.ptext);
- kfree(vec.ctext);
- crypto_free_aead(generic_tfm);
- aead_request_free(generic_req);
+ kfree(ctx->vec.key);
+ kfree(ctx->vec.iv);
+ kfree(ctx->vec.assoc);
+ kfree(ctx->vec.ptext);
+ kfree(ctx->vec.ctext);
+ kfree(ctx);
return err;
}
#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
-static int test_aead_vs_generic_impl(const char *driver,
- const struct alg_test_desc *test_desc,
- struct aead_request *req,
- struct cipher_test_sglists *tsgls)
+static int test_aead_extra(const char *driver,
+ const struct alg_test_desc *test_desc,
+ struct aead_request *req,
+ struct cipher_test_sglists *tsgls)
{
return 0;
}
@@ -2336,7 +2594,7 @@ static int alg_test_aead(const struct alg_test_desc *desc, const char *driver,
if (err)
goto out;
- err = test_aead_vs_generic_impl(driver, desc, req, tsgls);
+ err = test_aead_extra(driver, desc, req, tsgls);
out:
free_cipher_test_sglists(tsgls);
aead_request_free(req);
@@ -2457,7 +2715,8 @@ static int test_skcipher_vec_cfg(const char *driver, int enc,
else
crypto_skcipher_clear_flags(tfm,
CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
- err = crypto_skcipher_setkey(tfm, vec->key, vec->klen);
+ err = do_setkey(crypto_skcipher_setkey, tfm, vec->key, vec->klen,
+ cfg, alignmask);
if (err) {
if (err == vec->setkey_error)
return 0;
@@ -2647,7 +2906,7 @@ static void generate_random_cipher_testvec(struct skcipher_request *req,
char *name, size_t max_namelen)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
- const unsigned int maxkeysize = tfm->keysize;
+ const unsigned int maxkeysize = crypto_skcipher_max_keysize(tfm);
const unsigned int ivsize = crypto_skcipher_ivsize(tfm);
struct scatterlist src, dst;
u8 iv[MAX_IVLEN];
@@ -2678,6 +2937,15 @@ static void generate_random_cipher_testvec(struct skcipher_request *req,
skcipher_request_set_callback(req, 0, crypto_req_done, &wait);
skcipher_request_set_crypt(req, &src, &dst, vec->len, iv);
vec->crypt_error = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
+ if (vec->crypt_error != 0) {
+ /*
+ * The only acceptable error here is for an invalid length, so
+ * skcipher decryption should fail with the same error too.
+ * We'll test for this. But to keep the API usage well-defined,
+ * explicitly initialize the ciphertext buffer too.
+ */
+ memset((u8 *)vec->ctext, 0, vec->len);
+ }
done:
snprintf(name, max_namelen, "\"random: len=%u klen=%u\"",
vec->len, vec->klen);
@@ -2693,6 +2961,7 @@ static int test_skcipher_vs_generic_impl(const char *driver,
struct cipher_test_sglists *tsgls)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const unsigned int maxkeysize = crypto_skcipher_max_keysize(tfm);
const unsigned int ivsize = crypto_skcipher_ivsize(tfm);
const unsigned int blocksize = crypto_skcipher_blocksize(tfm);
const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
@@ -2751,9 +3020,19 @@ static int test_skcipher_vs_generic_impl(const char *driver,
/* Check the algorithm properties for consistency. */
- if (tfm->keysize != generic_tfm->keysize) {
+ if (crypto_skcipher_min_keysize(tfm) !=
+ crypto_skcipher_min_keysize(generic_tfm)) {
+ pr_err("alg: skcipher: min keysize for %s (%u) doesn't match generic impl (%u)\n",
+ driver, crypto_skcipher_min_keysize(tfm),
+ crypto_skcipher_min_keysize(generic_tfm));
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (maxkeysize != crypto_skcipher_max_keysize(generic_tfm)) {
pr_err("alg: skcipher: max keysize for %s (%u) doesn't match generic impl (%u)\n",
- driver, tfm->keysize, generic_tfm->keysize);
+ driver, maxkeysize,
+ crypto_skcipher_max_keysize(generic_tfm));
err = -EINVAL;
goto out;
}
@@ -2778,7 +3057,7 @@ static int test_skcipher_vs_generic_impl(const char *driver,
* the other implementation against them.
*/
- vec.key = kmalloc(tfm->keysize, GFP_KERNEL);
+ vec.key = kmalloc(maxkeysize, GFP_KERNEL);
vec.iv = kmalloc(ivsize, GFP_KERNEL);
vec.ptext = kmalloc(maxdatasize, GFP_KERNEL);
vec.ctext = kmalloc(maxdatasize, GFP_KERNEL);
@@ -3862,7 +4141,8 @@ static int alg_test_null(const struct alg_test_desc *desc,
return 0;
}
-#define __VECS(tv) { .vecs = tv, .count = ARRAY_SIZE(tv) }
+#define ____VECS(tv) .vecs = tv, .count = ARRAY_SIZE(tv)
+#define __VECS(tv) { ____VECS(tv) }
/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
@@ -4168,7 +4448,10 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_aead,
.fips_allowed = 1,
.suite = {
- .aead = __VECS(aes_ccm_tv_template)
+ .aead = {
+ ____VECS(aes_ccm_tv_template),
+ .einval_allowed = 1,
+ }
}
}, {
.alg = "cfb(aes)",
@@ -4916,7 +5199,11 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_aead,
.fips_allowed = 1,
.suite = {
- .aead = __VECS(aes_gcm_rfc4106_tv_template)
+ .aead = {
+ ____VECS(aes_gcm_rfc4106_tv_template),
+ .einval_allowed = 1,
+ .esp_aad = 1,
+ }
}
}, {
.alg = "rfc4309(ccm(aes))",
@@ -4924,14 +5211,21 @@ static const struct alg_test_desc alg_test_descs[] = {
.test = alg_test_aead,
.fips_allowed = 1,
.suite = {
- .aead = __VECS(aes_ccm_rfc4309_tv_template)
+ .aead = {
+ ____VECS(aes_ccm_rfc4309_tv_template),
+ .einval_allowed = 1,
+ .esp_aad = 1,
+ }
}
}, {
.alg = "rfc4543(gcm(aes))",
.generic_driver = "rfc4543(gcm_base(ctr(aes-generic),ghash-generic))",
.test = alg_test_aead,
.suite = {
- .aead = __VECS(aes_gcm_rfc4543_tv_template)
+ .aead = {
+ ____VECS(aes_gcm_rfc4543_tv_template),
+ .einval_allowed = 1,
+ }
}
}, {
.alg = "rfc7539(chacha20,poly1305)",
@@ -4943,7 +5237,11 @@ static const struct alg_test_desc alg_test_descs[] = {
.alg = "rfc7539esp(chacha20,poly1305)",
.test = alg_test_aead,
.suite = {
- .aead = __VECS(rfc7539esp_tv_template)
+ .aead = {
+ ____VECS(rfc7539esp_tv_template),
+ .einval_allowed = 1,
+ .esp_aad = 1,
+ }
}
}, {
.alg = "rmd128",
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 48da646651cb..d29983908c38 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -85,16 +85,22 @@ struct cipher_testvec {
* @ctext: Pointer to the full authenticated ciphertext. For AEADs that
* produce a separate "ciphertext" and "authentication tag", these
* two parts are concatenated: ciphertext || tag.
- * @novrfy: Decryption verification failure expected?
+ * @novrfy: If set, this is an inauthentic input test: only decryption is
+ * tested, and it is expected to fail with either -EBADMSG or
+ * @crypt_error if it is nonzero.
* @wk: Does the test need CRYPTO_TFM_REQ_FORBID_WEAK_KEYS?
* (e.g. setkey() needs to fail due to a weak key)
* @klen: Length of @key in bytes
* @plen: Length of @ptext in bytes
* @alen: Length of @assoc in bytes
* @clen: Length of @ctext in bytes
- * @setkey_error: Expected error from setkey()
- * @setauthsize_error: Expected error from setauthsize()
- * @crypt_error: Expected error from encrypt() and decrypt()
+ * @setkey_error: Expected error from setkey(). If set, neither encryption nor
+ * decryption is tested.
+ * @setauthsize_error: Expected error from setauthsize(). If set, neither
+ * encryption nor decryption is tested.
+ * @crypt_error: When @novrfy=0, the expected error from encrypt(). When
+ * @novrfy=1, an optional alternate error code that is acceptable
+ * for decrypt() to return besides -EBADMSG.
*/
struct aead_testvec {
const char *key;
diff --git a/crypto/twofish_common.c b/crypto/twofish_common.c
index 222fc765c57a..d23fa531b91f 100644
--- a/crypto/twofish_common.c
+++ b/crypto/twofish_common.c
@@ -567,7 +567,7 @@ static const u8 calc_sb_tbl[512] = {
/* Perform the key setup. */
int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key,
- unsigned int key_len, u32 *flags)
+ unsigned int key_len)
{
int i, j, k;
@@ -584,10 +584,7 @@ int __twofish_setkey(struct twofish_ctx *ctx, const u8 *key,
/* Check key length. */
if (key_len % 8)
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
return -EINVAL; /* unsupported key length */
- }
/* Compute the first two words of the S vector. The magic numbers are
* the entries of the RS matrix, preprocessed through poly_to_exp. The
@@ -688,8 +685,7 @@ EXPORT_SYMBOL_GPL(__twofish_setkey);
int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len)
{
- return __twofish_setkey(crypto_tfm_ctx(tfm), key, key_len,
- &tfm->crt_flags);
+ return __twofish_setkey(crypto_tfm_ctx(tfm), key, key_len);
}
EXPORT_SYMBOL_GPL(twofish_setkey);
diff --git a/crypto/vmac.c b/crypto/vmac.c
index f50a85060b39..2d906830df96 100644
--- a/crypto/vmac.c
+++ b/crypto/vmac.c
@@ -435,10 +435,8 @@ static int vmac_setkey(struct crypto_shash *tfm,
unsigned int i;
int err;
- if (keylen != VMAC_KEY_LEN) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != VMAC_KEY_LEN)
return -EINVAL;
- }
err = crypto_cipher_setkey(tctx->cipher, key, keylen);
if (err)
@@ -598,7 +596,7 @@ static int vmac_final(struct shash_desc *desc, u8 *out)
static int vmac_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
- struct crypto_spawn *spawn = crypto_instance_ctx(inst);
+ struct crypto_cipher_spawn *spawn = crypto_instance_ctx(inst);
struct vmac_tfm_ctx *tctx = crypto_tfm_ctx(tfm);
struct crypto_cipher *cipher;
@@ -620,6 +618,7 @@ static void vmac_exit_tfm(struct crypto_tfm *tfm)
static int vmac_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct shash_instance *inst;
+ struct crypto_cipher_spawn *spawn;
struct crypto_alg *alg;
int err;
@@ -627,25 +626,24 @@ static int vmac_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
return err;
- alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
- CRYPTO_ALG_TYPE_MASK);
- if (IS_ERR(alg))
- return PTR_ERR(alg);
+ inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ spawn = shash_instance_ctx(inst);
+
+ err = crypto_grab_cipher(spawn, shash_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, 0);
+ if (err)
+ goto err_free_inst;
+ alg = crypto_spawn_cipher_alg(spawn);
err = -EINVAL;
if (alg->cra_blocksize != VMAC_NONCEBYTES)
- goto out_put_alg;
+ goto err_free_inst;
- inst = shash_alloc_instance(tmpl->name, alg);
- err = PTR_ERR(inst);
- if (IS_ERR(inst))
- goto out_put_alg;
-
- err = crypto_init_spawn(shash_instance_ctx(inst), alg,
- shash_crypto_instance(inst),
- CRYPTO_ALG_TYPE_MASK);
+ err = crypto_inst_setname(shash_crypto_instance(inst), tmpl->name, alg);
if (err)
- goto out_free_inst;
+ goto err_free_inst;
inst->alg.base.cra_priority = alg->cra_priority;
inst->alg.base.cra_blocksize = alg->cra_blocksize;
@@ -662,21 +660,19 @@ static int vmac_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.final = vmac_final;
inst->alg.setkey = vmac_setkey;
+ inst->free = shash_free_singlespawn_instance;
+
err = shash_register_instance(tmpl, inst);
if (err) {
-out_free_inst:
- shash_free_instance(shash_crypto_instance(inst));
+err_free_inst:
+ shash_free_singlespawn_instance(inst);
}
-
-out_put_alg:
- crypto_mod_put(alg);
return err;
}
static struct crypto_template vmac64_tmpl = {
.name = "vmac64",
.create = vmac_create,
- .free = shash_free_instance,
.module = THIS_MODULE,
};
diff --git a/crypto/xcbc.c b/crypto/xcbc.c
index 0bb26e8f6f5a..598ec88abf0f 100644
--- a/crypto/xcbc.c
+++ b/crypto/xcbc.c
@@ -167,7 +167,7 @@ static int xcbc_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_cipher *cipher;
struct crypto_instance *inst = (void *)tfm->__crt_alg;
- struct crypto_spawn *spawn = crypto_instance_ctx(inst);
+ struct crypto_cipher_spawn *spawn = crypto_instance_ctx(inst);
struct xcbc_tfm_ctx *ctx = crypto_tfm_ctx(tfm);
cipher = crypto_spawn_cipher(spawn);
@@ -188,6 +188,7 @@ static void xcbc_exit_tfm(struct crypto_tfm *tfm)
static int xcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct shash_instance *inst;
+ struct crypto_cipher_spawn *spawn;
struct crypto_alg *alg;
unsigned long alignmask;
int err;
@@ -196,28 +197,24 @@ static int xcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
if (err)
return err;
- alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
- CRYPTO_ALG_TYPE_MASK);
- if (IS_ERR(alg))
- return PTR_ERR(alg);
+ inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ spawn = shash_instance_ctx(inst);
- switch(alg->cra_blocksize) {
- case XCBC_BLOCKSIZE:
- break;
- default:
- goto out_put_alg;
- }
+ err = crypto_grab_cipher(spawn, shash_crypto_instance(inst),
+ crypto_attr_alg_name(tb[1]), 0, 0);
+ if (err)
+ goto err_free_inst;
+ alg = crypto_spawn_cipher_alg(spawn);
- inst = shash_alloc_instance("xcbc", alg);
- err = PTR_ERR(inst);
- if (IS_ERR(inst))
- goto out_put_alg;
+ err = -EINVAL;
+ if (alg->cra_blocksize != XCBC_BLOCKSIZE)
+ goto err_free_inst;
- err = crypto_init_spawn(shash_instance_ctx(inst), alg,
- shash_crypto_instance(inst),
- CRYPTO_ALG_TYPE_MASK);
+ err = crypto_inst_setname(shash_crypto_instance(inst), tmpl->name, alg);
if (err)
- goto out_free_inst;
+ goto err_free_inst;
alignmask = alg->cra_alignmask | 3;
inst->alg.base.cra_alignmask = alignmask;
@@ -242,21 +239,19 @@ static int xcbc_create(struct crypto_template *tmpl, struct rtattr **tb)
inst->alg.final = crypto_xcbc_digest_final;
inst->alg.setkey = crypto_xcbc_digest_setkey;
+ inst->free = shash_free_singlespawn_instance;
+
err = shash_register_instance(tmpl, inst);
if (err) {
-out_free_inst:
- shash_free_instance(shash_crypto_instance(inst));
+err_free_inst:
+ shash_free_singlespawn_instance(inst);
}
-
-out_put_alg:
- crypto_mod_put(alg);
return err;
}
static struct crypto_template crypto_xcbc_tmpl = {
.name = "xcbc",
.create = xcbc_create,
- .free = shash_free_instance,
.module = THIS_MODULE,
};
diff --git a/crypto/xts.c b/crypto/xts.c
index ab117633d64e..29efa15f1495 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -61,8 +61,6 @@ static int setkey(struct crypto_skcipher *parent, const u8 *key,
crypto_cipher_set_flags(tweak, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_cipher_setkey(tweak, key + keylen, keylen);
- crypto_skcipher_set_flags(parent, crypto_cipher_get_flags(tweak) &
- CRYPTO_TFM_RES_MASK);
if (err)
return err;
@@ -71,11 +69,7 @@ static int setkey(struct crypto_skcipher *parent, const u8 *key,
crypto_skcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_skcipher_set_flags(child, crypto_skcipher_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_skcipher_setkey(child, key, keylen);
- crypto_skcipher_set_flags(parent, crypto_skcipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
-
- return err;
+ return crypto_skcipher_setkey(child, key, keylen);
}
/*
@@ -361,20 +355,21 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
ctx = skcipher_instance_ctx(inst);
- crypto_set_skcipher_spawn(&ctx->spawn, skcipher_crypto_instance(inst));
-
mask = crypto_requires_off(algt->type, algt->mask,
CRYPTO_ALG_NEED_FALLBACK |
CRYPTO_ALG_ASYNC);
- err = crypto_grab_skcipher(&ctx->spawn, cipher_name, 0, mask);
+ err = crypto_grab_skcipher(&ctx->spawn, skcipher_crypto_instance(inst),
+ cipher_name, 0, mask);
if (err == -ENOENT) {
err = -ENAMETOOLONG;
if (snprintf(ctx->name, CRYPTO_MAX_ALG_NAME, "ecb(%s)",
cipher_name) >= CRYPTO_MAX_ALG_NAME)
goto err_free_inst;
- err = crypto_grab_skcipher(&ctx->spawn, ctx->name, 0, mask);
+ err = crypto_grab_skcipher(&ctx->spawn,
+ skcipher_crypto_instance(inst),
+ ctx->name, 0, mask);
}
if (err)
diff --git a/crypto/xxhash_generic.c b/crypto/xxhash_generic.c
index 4aad2c0f40a9..55d1c8a76127 100644
--- a/crypto/xxhash_generic.c
+++ b/crypto/xxhash_generic.c
@@ -22,10 +22,8 @@ static int xxhash64_setkey(struct crypto_shash *tfm, const u8 *key,
{
struct xxhash64_tfm_ctx *tctx = crypto_shash_ctx(tfm);
- if (keylen != sizeof(tctx->seed)) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(tctx->seed))
return -EINVAL;
- }
tctx->seed = get_unaligned_le64(key);
return 0;
}
diff --git a/drivers/Makefile b/drivers/Makefile
index aaef17cc6512..31cf17dee252 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -171,7 +171,7 @@ obj-$(CONFIG_POWERCAP) += powercap/
obj-$(CONFIG_MCB) += mcb/
obj-$(CONFIG_PERF_EVENTS) += perf/
obj-$(CONFIG_RAS) += ras/
-obj-$(CONFIG_THUNDERBOLT) += thunderbolt/
+obj-$(CONFIG_USB4) += thunderbolt/
obj-$(CONFIG_CORESIGHT) += hwtracing/coresight/
obj-y += hwtracing/intel_th/
obj-$(CONFIG_STM) += hwtracing/stm/
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 002838d23b86..cc57bab146b5 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -241,6 +241,7 @@ config ACPI_CPU_FREQ_PSS
config ACPI_PROCESSOR_CSTATE
def_bool y
+ depends on ACPI_PROCESSOR
depends on IA64 || X86
config ACPI_PROCESSOR_IDLE
diff --git a/drivers/acpi/acpi_lpit.c b/drivers/acpi/acpi_lpit.c
index 433376e819bb..953437a216f6 100644
--- a/drivers/acpi/acpi_lpit.c
+++ b/drivers/acpi/acpi_lpit.c
@@ -104,7 +104,7 @@ static void lpit_update_residency(struct lpit_residency_info *info,
info->gaddr = lpit_native->residency_counter;
if (info->gaddr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
- info->iomem_addr = ioremap_nocache(info->gaddr.address,
+ info->iomem_addr = ioremap(info->gaddr.address,
info->gaddr.bit_width / 8);
if (!info->iomem_addr)
return;
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 70f740b09684..db18df6cb330 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -69,10 +69,6 @@ ACPI_MODULE_NAME("acpi_lpss");
#define LPSS_SAVE_CTX BIT(4)
#define LPSS_NO_D3_DELAY BIT(5)
-/* Crystal Cove PMIC shares same ACPI ID between different platforms */
-#define BYT_CRC_HRV 2
-#define CHT_CRC_HRV 3
-
struct lpss_private_data;
struct lpss_device_desc {
@@ -158,7 +154,7 @@ static void lpss_deassert_reset(struct lpss_private_data *pdata)
*/
static struct pwm_lookup byt_pwm_lookup[] = {
PWM_LOOKUP_WITH_MODULE("80860F09:00", 0, "0000:00:02.0",
- "pwm_backlight", 0, PWM_POLARITY_NORMAL,
+ "pwm_soc_backlight", 0, PWM_POLARITY_NORMAL,
"pwm-lpss-platform"),
};
@@ -170,8 +166,7 @@ static void byt_pwm_setup(struct lpss_private_data *pdata)
if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
return;
- if (!acpi_dev_present("INT33FD", NULL, BYT_CRC_HRV))
- pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup));
+ pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup));
}
#define LPSS_I2C_ENABLE 0x6c
@@ -204,7 +199,7 @@ static void byt_i2c_setup(struct lpss_private_data *pdata)
/* BSW PWM used for backlight control by the i915 driver */
static struct pwm_lookup bsw_pwm_lookup[] = {
PWM_LOOKUP_WITH_MODULE("80862288:00", 0, "0000:00:02.0",
- "pwm_backlight", 0, PWM_POLARITY_NORMAL,
+ "pwm_soc_backlight", 0, PWM_POLARITY_NORMAL,
"pwm-lpss-platform"),
};
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 2c4dda0787e8..5379bc3f275d 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -705,3 +705,185 @@ void __init acpi_processor_init(void)
acpi_scan_add_handler_with_hotplug(&processor_handler, "processor");
acpi_scan_add_handler(&processor_container_handler);
}
+
+#ifdef CONFIG_ACPI_PROCESSOR_CSTATE
+/**
+ * acpi_processor_claim_cst_control - Request _CST control from the platform.
+ */
+bool acpi_processor_claim_cst_control(void)
+{
+ static bool cst_control_claimed;
+ acpi_status status;
+
+ if (!acpi_gbl_FADT.cst_control || cst_control_claimed)
+ return true;
+
+ status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
+ acpi_gbl_FADT.cst_control, 8);
+ if (ACPI_FAILURE(status)) {
+ pr_warn("ACPI: Failed to claim processor _CST control\n");
+ return false;
+ }
+
+ cst_control_claimed = true;
+ return true;
+}
+EXPORT_SYMBOL_GPL(acpi_processor_claim_cst_control);
+
+/**
+ * acpi_processor_evaluate_cst - Evaluate the processor _CST control method.
+ * @handle: ACPI handle of the processor object containing the _CST.
+ * @cpu: The numeric ID of the target CPU.
+ * @info: Object write the C-states information into.
+ *
+ * Extract the C-state information for the given CPU from the output of the _CST
+ * control method under the corresponding ACPI processor object (or processor
+ * device object) and populate @info with it.
+ *
+ * If any ACPI_ADR_SPACE_FIXED_HARDWARE C-states are found, invoke
+ * acpi_processor_ffh_cstate_probe() to verify them and update the
+ * cpu_cstate_entry data for @cpu.
+ */
+int acpi_processor_evaluate_cst(acpi_handle handle, u32 cpu,
+ struct acpi_processor_power *info)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *cst;
+ acpi_status status;
+ u64 count;
+ int last_index = 0;
+ int i, ret = 0;
+
+ status = acpi_evaluate_object(handle, "_CST", NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ acpi_handle_debug(handle, "No _CST\n");
+ return -ENODEV;
+ }
+
+ cst = buffer.pointer;
+
+ /* There must be at least 2 elements. */
+ if (!cst || cst->type != ACPI_TYPE_PACKAGE || cst->package.count < 2) {
+ acpi_handle_warn(handle, "Invalid _CST output\n");
+ ret = -EFAULT;
+ goto end;
+ }
+
+ count = cst->package.elements[0].integer.value;
+
+ /* Validate the number of C-states. */
+ if (count < 1 || count != cst->package.count - 1) {
+ acpi_handle_warn(handle, "Inconsistent _CST data\n");
+ ret = -EFAULT;
+ goto end;
+ }
+
+ for (i = 1; i <= count; i++) {
+ union acpi_object *element;
+ union acpi_object *obj;
+ struct acpi_power_register *reg;
+ struct acpi_processor_cx cx;
+
+ /*
+ * If there is not enough space for all C-states, skip the
+ * excess ones and log a warning.
+ */
+ if (last_index >= ACPI_PROCESSOR_MAX_POWER - 1) {
+ acpi_handle_warn(handle,
+ "No room for more idle states (limit: %d)\n",
+ ACPI_PROCESSOR_MAX_POWER - 1);
+ break;
+ }
+
+ memset(&cx, 0, sizeof(cx));
+
+ element = &cst->package.elements[i];
+ if (element->type != ACPI_TYPE_PACKAGE)
+ continue;
+
+ if (element->package.count != 4)
+ continue;
+
+ obj = &element->package.elements[0];
+
+ if (obj->type != ACPI_TYPE_BUFFER)
+ continue;
+
+ reg = (struct acpi_power_register *)obj->buffer.pointer;
+
+ obj = &element->package.elements[1];
+ if (obj->type != ACPI_TYPE_INTEGER)
+ continue;
+
+ cx.type = obj->integer.value;
+ /*
+ * There are known cases in which the _CST output does not
+ * contain C1, so if the type of the first state found is not
+ * C1, leave an empty slot for C1 to be filled in later.
+ */
+ if (i == 1 && cx.type != ACPI_STATE_C1)
+ last_index = 1;
+
+ cx.address = reg->address;
+ cx.index = last_index + 1;
+
+ if (reg->space_id == ACPI_ADR_SPACE_FIXED_HARDWARE) {
+ if (!acpi_processor_ffh_cstate_probe(cpu, &cx, reg)) {
+ /*
+ * In the majority of cases _CST describes C1 as
+ * a FIXED_HARDWARE C-state, but if the command
+ * line forbids using MWAIT, use CSTATE_HALT for
+ * C1 regardless.
+ */
+ if (cx.type == ACPI_STATE_C1 &&
+ boot_option_idle_override == IDLE_NOMWAIT) {
+ cx.entry_method = ACPI_CSTATE_HALT;
+ snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI HLT");
+ } else {
+ cx.entry_method = ACPI_CSTATE_FFH;
+ }
+ } else if (cx.type == ACPI_STATE_C1) {
+ /*
+ * In the special case of C1, FIXED_HARDWARE can
+ * be handled by executing the HLT instruction.
+ */
+ cx.entry_method = ACPI_CSTATE_HALT;
+ snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI HLT");
+ } else {
+ continue;
+ }
+ } else if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
+ cx.entry_method = ACPI_CSTATE_SYSTEMIO;
+ snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI IOPORT 0x%x",
+ cx.address);
+ } else {
+ continue;
+ }
+
+ if (cx.type == ACPI_STATE_C1)
+ cx.valid = 1;
+
+ obj = &element->package.elements[2];
+ if (obj->type != ACPI_TYPE_INTEGER)
+ continue;
+
+ cx.latency = obj->integer.value;
+
+ obj = &element->package.elements[3];
+ if (obj->type != ACPI_TYPE_INTEGER)
+ continue;
+
+ memcpy(&info->states[++last_index], &cx, sizeof(cx));
+ }
+
+ acpi_handle_info(handle, "Found %d idle states\n", last_index);
+
+ info->count = last_index;
+
+ end:
+ kfree(buffer.pointer);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(acpi_processor_evaluate_cst);
+#endif /* CONFIG_ACPI_PROCESSOR_CSTATE */
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 2f380e7381d6..15c5b272e698 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -2187,7 +2187,7 @@ int acpi_video_register(void)
if (register_count) {
/*
* if the function of acpi_video_register is already called,
- * don't register the acpi_vide_bus again and return no error.
+ * don't register the acpi_video_bus again and return no error.
*/
goto leave;
}
diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
index 863ade9add6d..173447d50acf 100644
--- a/drivers/acpi/acpica/acapps.h
+++ b/drivers/acpi/acpica/acapps.h
@@ -3,7 +3,7 @@
*
* Module Name: acapps - common include for ACPI applications/tools
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
@@ -17,7 +17,7 @@
/* Common info for tool signons */
#define ACPICA_NAME "Intel ACPI Component Architecture"
-#define ACPICA_COPYRIGHT "Copyright (c) 2000 - 2019 Intel Corporation"
+#define ACPICA_COPYRIGHT "Copyright (c) 2000 - 2020 Intel Corporation"
#if ACPI_MACHINE_WIDTH == 64
#define ACPI_WIDTH " (64-bit version)"
diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h
index 54f81eac7ec9..89101e53324b 100644
--- a/drivers/acpi/acpica/accommon.h
+++ b/drivers/acpi/acpica/accommon.h
@@ -3,7 +3,7 @@
*
* Name: accommon.h - Common include files for generation of ACPICA source
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acconvert.h b/drivers/acpi/acpica/acconvert.h
index d5478cd4a857..ede4b9cc9e85 100644
--- a/drivers/acpi/acpica/acconvert.h
+++ b/drivers/acpi/acpica/acconvert.h
@@ -3,7 +3,7 @@
*
* Module Name: acapps - common include for ACPI applications/tools
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 694cf206fa9a..a676daaa2da5 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -3,7 +3,7 @@
*
* Name: acdebug.h - ACPI/AML debugger
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acdispat.h b/drivers/acpi/acpica/acdispat.h
index 82f81501566b..7ba6e308f146 100644
--- a/drivers/acpi/acpica/acdispat.h
+++ b/drivers/acpi/acpica/acdispat.h
@@ -3,7 +3,7 @@
*
* Name: acdispat.h - dispatcher (parser to interpreter interface)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index c8652f91054e..79f292687bd6 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -3,7 +3,7 @@
*
* Name: acevents.h - Event subcomponent prototypes and defines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index fd3beea93421..38ffa2c0a496 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -3,7 +3,7 @@
*
* Name: acglobal.h - Declarations for global variables
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index bcf8f7501db7..67f282e9e0af 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -3,7 +3,7 @@
*
* Name: achware.h -- hardware specific interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index 20706adbc148..a6d896cda2a5 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -3,7 +3,7 @@
*
* Name: acinterp.h - Interpreter subcomponent prototypes and defines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 1ea52576f0a2..af58cd2dc9d3 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -3,7 +3,7 @@
*
* Name: aclocal.h - Internal data types used across the ACPI subsystem
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 283614e82a20..2269e10bc21b 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -3,7 +3,7 @@
*
* Name: acmacros.h - C macros for the entire subsystem.
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 7da1864798a0..e618ddfab2fd 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -3,7 +3,7 @@
*
* Name: acnamesp.h - Namespace subcomponent prototypes and defines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h
index 8def0e3d690f..9f0219a8cb98 100644
--- a/drivers/acpi/acpica/acobject.h
+++ b/drivers/acpi/acpica/acobject.h
@@ -3,7 +3,7 @@
*
* Name: acobject.h - Definition of union acpi_operand_object (Internal object only)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
@@ -260,7 +260,8 @@ struct acpi_object_index_field {
/* The buffer_field is different in that it is part of a Buffer, not an op_region */
struct acpi_object_buffer_field {
- ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO union acpi_operand_object *buffer_obj; /* Containing Buffer object */
+ ACPI_OBJECT_COMMON_HEADER ACPI_COMMON_FIELD_INFO u8 is_create_field; /* Special case for objects created by create_field() */
+ union acpi_operand_object *buffer_obj; /* Containing Buffer object */
};
/******************************************************************************
diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h
index 9d78134428e3..8825394be9ab 100644
--- a/drivers/acpi/acpica/acopcode.h
+++ b/drivers/acpi/acpica/acopcode.h
@@ -3,7 +3,7 @@
*
* Name: acopcode.h - AML opcode information for the AML parser and interpreter
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index 6e32c97cba6c..bc00b85c0a8f 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -3,7 +3,7 @@
*
* Module Name: acparser.h - AML Parser subcomponent prototypes and defines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index 387163b962a7..cd0f5df0ea23 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -3,7 +3,7 @@
*
* Name: acpredef - Information table for ACPI predefined methods and objects
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h
index 422cd8f2b92e..6de8a1650d3d 100644
--- a/drivers/acpi/acpica/acresrc.h
+++ b/drivers/acpi/acpica/acresrc.h
@@ -3,7 +3,7 @@
*
* Name: acresrc.h - Resource Manager function prototypes
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h
index 2043dff370b1..4c900c108f3f 100644
--- a/drivers/acpi/acpica/acstruct.h
+++ b/drivers/acpi/acpica/acstruct.h
@@ -3,7 +3,7 @@
*
* Name: acstruct.h - Internal structs
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index dfbf1dbd4033..734624facda3 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -3,7 +3,7 @@
*
* Name: actables.h - ACPI table management
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 5fb50634e08e..7c89b470ec81 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -3,7 +3,7 @@
*
* Name: acutils.h -- prototypes for the common (subsystem-wide) procedures
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index 49e412edd7c6..1d541bbac4a3 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -5,7 +5,7 @@
* Declarations and definitions contained herein are derived
* directly from the ACPI specification.
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/amlresrc.h b/drivers/acpi/acpica/amlresrc.h
index 7c3bd4ab60fc..e5234e001acf 100644
--- a/drivers/acpi/acpica/amlresrc.h
+++ b/drivers/acpi/acpica/amlresrc.h
@@ -3,7 +3,7 @@
*
* Module Name: amlresrc.h - AML resource descriptors
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dbhistry.c b/drivers/acpi/acpica/dbhistry.c
index 47d2e5059849..bb9600b867ee 100644
--- a/drivers/acpi/acpica/dbhistry.c
+++ b/drivers/acpi/acpica/dbhistry.c
@@ -3,7 +3,7 @@
*
* Module Name: dbhistry - debugger HISTORY command
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dbinput.c b/drivers/acpi/acpica/dbinput.c
index e1632b340182..aa71f65395d2 100644
--- a/drivers/acpi/acpica/dbinput.c
+++ b/drivers/acpi/acpica/dbinput.c
@@ -816,7 +816,7 @@ acpi_db_command_dispatch(char *input_buffer,
if (ACPI_FAILURE(status)
|| temp64 >= ACPI_NUM_PREDEFINED_REGIONS) {
acpi_os_printf
- ("Invalid adress space ID: must be between 0 and %u inclusive\n",
+ ("Invalid address space ID: must be between 0 and %u inclusive\n",
ACPI_NUM_PREDEFINED_REGIONS - 1);
return (AE_OK);
}
diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c
index 85b34d02233e..ad17f62e51d9 100644
--- a/drivers/acpi/acpica/dsargs.c
+++ b/drivers/acpi/acpica/dsargs.c
@@ -4,7 +4,7 @@
* Module Name: dsargs - Support for execution of dynamic arguments for static
* objects (regions, fields, buffer fields, etc.)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c
index 5034fab9cf69..4b5b6e859f62 100644
--- a/drivers/acpi/acpica/dscontrol.c
+++ b/drivers/acpi/acpica/dscontrol.c
@@ -4,7 +4,7 @@
* Module Name: dscontrol - Support for execution control opcodes -
* if/else/while/return
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dsdebug.c b/drivers/acpi/acpica/dsdebug.c
index 0d3e1ced1f57..63bc5f19fb82 100644
--- a/drivers/acpi/acpica/dsdebug.c
+++ b/drivers/acpi/acpica/dsdebug.c
@@ -3,7 +3,7 @@
*
* Module Name: dsdebug - Parser/Interpreter interface - debugging
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index faa38a22263a..c901f5aec739 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -3,7 +3,7 @@
*
* Module Name: dsfield - Dispatcher field routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
@@ -243,7 +243,7 @@ cleanup:
* FUNCTION: acpi_ds_get_field_names
*
* PARAMETERS: info - create_field info structure
- * ` walk_state - Current method state
+ * walk_state - Current method state
* arg - First parser arg for the field name list
*
* RETURN: Status
diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c
index a1ffed29903b..9be2a309424c 100644
--- a/drivers/acpi/acpica/dsinit.c
+++ b/drivers/acpi/acpica/dsinit.c
@@ -3,7 +3,7 @@
*
* Module Name: dsinit - Object initialization namespace walk
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index f59b4d944f7f..cf67caff878a 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -3,7 +3,7 @@
*
* Module Name: dsmethod - Parser/Interpreter interface - control method parsing
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 179129a2deb1..c0a14a6a2c20 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -3,7 +3,7 @@
*
* Module Name: dsobject - Dispatcher object management routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 10f32b62608e..d9c26e720cb7 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -3,7 +3,7 @@
*
* Module Name: dsopcode - Dispatcher support for regions and fields
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
@@ -217,6 +217,8 @@ acpi_ds_init_buffer_field(u16 aml_opcode,
}
obj_desc->buffer_field.buffer_obj = buffer_desc;
+ obj_desc->buffer_field.is_create_field =
+ aml_opcode == AML_CREATE_FIELD_OP;
/* Reference count for buffer_desc inherits obj_desc count */
diff --git a/drivers/acpi/acpica/dspkginit.c b/drivers/acpi/acpica/dspkginit.c
index 997faa10f615..d869568d55c2 100644
--- a/drivers/acpi/acpica/dspkginit.c
+++ b/drivers/acpi/acpica/dspkginit.c
@@ -3,7 +3,7 @@
*
* Module Name: dspkginit - Completion of deferred package initialization
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index d75aae304595..5e81a1ae44cf 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -4,7 +4,7 @@
* Module Name: dswexec - Dispatcher method execution callbacks;
* dispatch to interpreter.
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index c88fd31208a5..697974e37edf 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -3,7 +3,7 @@
*
* Module Name: dswload - Dispatcher first pass namespace load callbacks
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
@@ -410,6 +410,27 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op,
walk_state));
+ /*
+ * Disassembler: handle create field operators here.
+ *
+ * create_buffer_field is a deferred op that is typically processed in load
+ * pass 2. However, disassembly of control method contents walk the parse
+ * tree with ACPI_PARSE_LOAD_PASS1 and AML_CREATE operators are processed
+ * in a later walk. This is a problem when there is a control method that
+ * has the same name as the AML_CREATE object. In this case, any use of the
+ * name segment will be detected as a method call rather than a reference
+ * to a buffer field.
+ *
+ * This earlier creation during disassembly solves this issue by inserting
+ * the named object in the ACPI namespace so that references to this name
+ * would be a name string rather than a method call.
+ */
+ if ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) &&
+ (walk_state->op_info->flags & AML_CREATE)) {
+ status = acpi_ds_create_buffer_field(op, walk_state);
+ return_ACPI_STATUS(status);
+ }
+
/* We are only interested in opcodes that have an associated name */
if (!(walk_state->op_info->flags & (AML_NAMED | AML_FIELD))) {
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index 935a8e2623e4..b31457ca926c 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -3,7 +3,7 @@
*
* Module Name: dswload2 - Dispatcher second pass namespace load callbacks
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dswscope.c b/drivers/acpi/acpica/dswscope.c
index 39acf7b286da..9c397642fed7 100644
--- a/drivers/acpi/acpica/dswscope.c
+++ b/drivers/acpi/acpica/dswscope.c
@@ -3,7 +3,7 @@
*
* Module Name: dswscope - Scope stack manipulation
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/dswstate.c b/drivers/acpi/acpica/dswstate.c
index de79f835a373..809a0c0536b5 100644
--- a/drivers/acpi/acpica/dswstate.c
+++ b/drivers/acpi/acpica/dswstate.c
@@ -3,7 +3,7 @@
*
* Module Name: dswstate - Dispatcher parse tree walk management routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c
index 9e2f5a05c066..8c83d8c620dc 100644
--- a/drivers/acpi/acpica/evevent.c
+++ b/drivers/acpi/acpica/evevent.c
@@ -3,7 +3,7 @@
*
* Module Name: evevent - Fixed Event handling and dispatch
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c
index 5c77bee5d31f..0ced84ae13e4 100644
--- a/drivers/acpi/acpica/evglock.c
+++ b/drivers/acpi/acpica/evglock.c
@@ -3,7 +3,7 @@
*
* Module Name: evglock - Global Lock support
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 344feba29063..3e39907fedd9 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -3,7 +3,7 @@
*
* Module Name: evgpe - General Purpose Event handling and dispatch
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 9c7adaa7b582..132adff1e131 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -3,7 +3,7 @@
*
* Module Name: evgpeblk - GPE block creation and initialization.
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 70d21d5ec5f3..6effd8076dcc 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -3,7 +3,7 @@
*
* Module Name: evgpeinit - System GPE initialization and update
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
index 917892227e09..738873e876ca 100644
--- a/drivers/acpi/acpica/evgpeutil.c
+++ b/drivers/acpi/acpica/evgpeutil.c
@@ -3,7 +3,7 @@
*
* Module Name: evgpeutil - GPE utilities
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c
index 3ef4e27995f0..5884eba047f7 100644
--- a/drivers/acpi/acpica/evhandler.c
+++ b/drivers/acpi/acpica/evhandler.c
@@ -3,7 +3,7 @@
*
* Module Name: evhandler - Support for Address Space handlers
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index aa98fe07cd1b..ce1eda6beb84 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -3,7 +3,7 @@
*
* Module Name: evmisc - Miscellaneous event manager support functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 1ff126460007..738d4b231f34 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -3,7 +3,7 @@
*
* Module Name: evregion - Operation Region support
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index aee09640d710..aefc0145e583 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -3,7 +3,7 @@
*
* Module Name: evrgnini- ACPI address_space (op_region) init
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 279ef0557aa3..e4e012297eee 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -3,7 +3,7 @@
*
* Module Name: evxface - External interfaces for ACPI events
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index e528fe56b755..1a15b0087379 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -3,7 +3,7 @@
*
* Module Name: evxfevnt - External Interfaces, ACPI event disable/enable
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 04a40d563dd6..2c39ff2a7406 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -3,7 +3,7 @@
*
* Module Name: evxfgpe - External Interfaces for General Purpose Events (GPEs)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 47265b073e6f..da97fd0c6b51 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -4,7 +4,7 @@
* Module Name: evxfregn - External Interfaces, ACPI Operation Regions and
* Address Spaces.
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exconcat.c b/drivers/acpi/acpica/exconcat.c
index c7af07566b7b..43711412722f 100644
--- a/drivers/acpi/acpica/exconcat.c
+++ b/drivers/acpi/acpica/exconcat.c
@@ -3,7 +3,7 @@
*
* Module Name: exconcat - Concatenate-type AML operators
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 46a8baf28bd0..68efd704e2dc 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -3,7 +3,7 @@
*
* Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index ca2966bacb50..50c7aad2e86d 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -3,7 +3,7 @@
*
* Module Name: exconvrt - Object conversion routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index f376fc00064e..a17482428b46 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -3,7 +3,7 @@
*
* Module Name: excreate - Named object creation
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index b1aeec8cac55..a5223dcaee70 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -3,7 +3,7 @@
*
* Module Name: exdebug - Support for stores to the AML Debug Object
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index a9bc938a3b55..47a4d9a40d6b 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -3,7 +3,7 @@
*
* Module Name: exdump - Interpreter debug output routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index d3d2dbfba680..e85eb31e5075 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -3,7 +3,7 @@
*
* Module Name: exfield - AML execution - field_unit read/write
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
@@ -96,7 +96,8 @@ acpi_ex_get_protocol_buffer_length(u32 protocol_id, u32 *return_length)
* RETURN: Status
*
* DESCRIPTION: Read from a named field. Returns either an Integer or a
- * Buffer, depending on the size of the field.
+ * Buffer, depending on the size of the field and whether if a
+ * field is created by the create_field() operator.
*
******************************************************************************/
@@ -154,12 +155,17 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
* the use of arithmetic operators on the returned value if the
* field size is equal or smaller than an Integer.
*
+ * However, all buffer fields created by create_field operator needs to
+ * remain as a buffer to match other AML interpreter implementations.
+ *
* Note: Field.length is in bits.
*/
buffer_length =
(acpi_size)ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length);
- if (buffer_length > acpi_gbl_integer_byte_width) {
+ if (buffer_length > acpi_gbl_integer_byte_width ||
+ (obj_desc->common.type == ACPI_TYPE_BUFFER_FIELD &&
+ obj_desc->buffer_field.is_create_field)) {
/* Field is too large for an Integer, create a Buffer instead */
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 95a0dcb4f7b9..ade35ff1c7ba 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -3,7 +3,7 @@
*
* Module Name: exfldio - Aml Field I/O
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index 60e854965af9..717e3998fd77 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -3,7 +3,7 @@
*
* Module Name: exmisc - ACPI AML (p-code) execution - specific opcodes
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index 775cd62af5b3..9ff247cba571 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -3,7 +3,7 @@
*
* Module Name: exmutex - ASL Mutex Acquire/Release functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exnames.c b/drivers/acpi/acpica/exnames.c
index 6b76be5212a4..74f8b0d0452b 100644
--- a/drivers/acpi/acpica/exnames.c
+++ b/drivers/acpi/acpica/exnames.c
@@ -3,7 +3,7 @@
*
* Module Name: exnames - interpreter/scanner name load/execute
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index 06e35ea09823..a46d685a3ffc 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -3,7 +3,7 @@
*
* Module Name: exoparg1 - AML execution - opcodes with 1 argument
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index 5e4a31a11df4..03241d18ac1d 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -3,7 +3,7 @@
*
* Module Name: exoparg2 - AML execution - opcodes with 2 arguments
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index a4ebce417930..c8d0d75fc450 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -3,7 +3,7 @@
*
* Module Name: exoparg3 - AML execution - opcodes with 3 arguments
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c
index 31385a0b2dab..55d0fa056fe7 100644
--- a/drivers/acpi/acpica/exoparg6.c
+++ b/drivers/acpi/acpica/exoparg6.c
@@ -3,7 +3,7 @@
*
* Module Name: exoparg6 - AML execution - opcodes with 6 arguments
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exprep.c b/drivers/acpi/acpica/exprep.c
index 728d752f7adc..a4e306690a21 100644
--- a/drivers/acpi/acpica/exprep.c
+++ b/drivers/acpi/acpica/exprep.c
@@ -3,7 +3,7 @@
*
* Module Name: exprep - ACPI AML field prep utilities
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index c08521194b29..d15a66de26c0 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -3,7 +3,7 @@
*
* Module Name: exregion - ACPI default op_region (address space) handlers
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c
index b223d01e6bf8..3e4018678c09 100644
--- a/drivers/acpi/acpica/exresnte.c
+++ b/drivers/acpi/acpica/exresnte.c
@@ -3,7 +3,7 @@
*
* Module Name: exresnte - AML Interpreter object resolution
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c
index 36da5c0ef69c..912a078c60a4 100644
--- a/drivers/acpi/acpica/exresolv.c
+++ b/drivers/acpi/acpica/exresolv.c
@@ -3,7 +3,7 @@
*
* Module Name: exresolv - AML Interpreter object resolution
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
index bdfe4d33b483..4d1b22971d58 100644
--- a/drivers/acpi/acpica/exresop.c
+++ b/drivers/acpi/acpica/exresop.c
@@ -3,7 +3,7 @@
*
* Module Name: exresop - AML Interpreter operand/object resolution
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exserial.c b/drivers/acpi/acpica/exserial.c
index c5aa4b0deb70..760bc7cef55a 100644
--- a/drivers/acpi/acpica/exserial.c
+++ b/drivers/acpi/acpica/exserial.c
@@ -3,7 +3,7 @@
*
* Module Name: exserial - field_unit support for serial address spaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c
index 7f3c3571c292..3adc0a29d890 100644
--- a/drivers/acpi/acpica/exstore.c
+++ b/drivers/acpi/acpica/exstore.c
@@ -3,7 +3,7 @@
*
* Module Name: exstore - AML Interpreter object store support
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c
index 4e43c8277f07..8c34f4e2ab8f 100644
--- a/drivers/acpi/acpica/exstoren.c
+++ b/drivers/acpi/acpica/exstoren.c
@@ -4,7 +4,7 @@
* Module Name: exstoren - AML Interpreter object store support,
* Store to Node (namespace object)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c
index dc9e2b1c1ad9..dc66696080a5 100644
--- a/drivers/acpi/acpica/exstorob.c
+++ b/drivers/acpi/acpica/exstorob.c
@@ -3,7 +3,7 @@
*
* Module Name: exstorob - AML object store support, store to object
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c
index a538f7799b78..f329b01672bb 100644
--- a/drivers/acpi/acpica/exsystem.c
+++ b/drivers/acpi/acpica/exsystem.c
@@ -3,7 +3,7 @@
*
* Module Name: exsystem - Interface to OS services
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/extrace.c b/drivers/acpi/acpica/extrace.c
index db7f93ca539f..832a47885b99 100644
--- a/drivers/acpi/acpica/extrace.c
+++ b/drivers/acpi/acpica/extrace.c
@@ -3,7 +3,7 @@
*
* Module Name: extrace - Support for interpreter execution tracing
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c
index 75380be1c2ef..8fefa6feac2f 100644
--- a/drivers/acpi/acpica/exutils.c
+++ b/drivers/acpi/acpica/exutils.c
@@ -3,7 +3,7 @@
*
* Module Name: exutils - interpreter/scanner utilities
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c
index 926f7e080f22..9b9aac27ff7e 100644
--- a/drivers/acpi/acpica/hwacpi.c
+++ b/drivers/acpi/acpica/hwacpi.c
@@ -3,7 +3,7 @@
*
* Module Name: hwacpi - ACPI Hardware Initialization/Mode Interface
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index dee3affaca49..d9be5d0545d4 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -4,7 +4,7 @@
* Name: hwesleep.c - ACPI Hardware Sleep/Wake Support functions for the
* extended FADT-V5 sleep registers.
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 565bd3f29f31..1b4252bdcd0b 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -3,7 +3,7 @@
*
* Module Name: hwgpe - Low level GPE enable/disable/clear functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index b62db8ec446f..243a25add28f 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -4,7 +4,7 @@
* Name: hwsleep.c - ACPI Hardware Sleep/Wake Support functions for the
* original/legacy sleep/PM registers.
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c
index 2fb9f75d71c5..07473ddfa9a9 100644
--- a/drivers/acpi/acpica/hwtimer.c
+++ b/drivers/acpi/acpica/hwtimer.c
@@ -3,7 +3,7 @@
*
* Name: hwtimer.c - ACPI Power Management Timer Interface
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index cd576153257c..4d94861e6093 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -3,7 +3,7 @@
*
* Module Name: hwvalid - I/O request validation
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index c4fd97104024..134dbfadcd15 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -3,7 +3,7 @@
*
* Module Name: hwxface - Public ACPICA hardware interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 2919746c9041..a4b66f4b2714 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -3,7 +3,7 @@
*
* Name: hwxfsleep.c - ACPI Hardware Sleep/Wake External Interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsarguments.c b/drivers/acpi/acpica/nsarguments.c
index 0e97ed38973f..d5e8405e9d8f 100644
--- a/drivers/acpi/acpica/nsarguments.c
+++ b/drivers/acpi/acpica/nsarguments.c
@@ -3,7 +3,7 @@
*
* Module Name: nsarguments - Validation of args for ACPI predefined methods
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c
index c86d0770ed6e..c86c82939ebb 100644
--- a/drivers/acpi/acpica/nsconvert.c
+++ b/drivers/acpi/acpica/nsconvert.c
@@ -4,7 +4,7 @@
* Module Name: nsconvert - Object conversions for objects returned by
* predefined methods
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 9ad340f644a1..994f0b556c60 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -3,7 +3,7 @@
*
* Module Name: nsdump - table dumping routines for debug
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c
index 73e5c83c8c9f..b691fe20e384 100644
--- a/drivers/acpi/acpica/nsdumpdv.c
+++ b/drivers/acpi/acpica/nsdumpdv.c
@@ -3,7 +3,7 @@
*
* Module Name: nsdump - table dumping routines for debug
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 61e9dfc9fe8c..e16f6a0c2c3f 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -3,7 +3,7 @@
*
* Module Name: nsinit - namespace initialization
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c
index d7c4d6e8e21e..9ba17891edb6 100644
--- a/drivers/acpi/acpica/nsload.c
+++ b/drivers/acpi/acpica/nsload.c
@@ -3,7 +3,7 @@
*
* Module Name: nsload - namespace loading/expanding/contracting procedures
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c
index f16cf5e4742c..7e74a765e785 100644
--- a/drivers/acpi/acpica/nsparse.c
+++ b/drivers/acpi/acpica/nsparse.c
@@ -3,7 +3,7 @@
*
* Module Name: nsparse - namespace interface to AML parser
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 2f9d93122d0c..0cea9c363ace 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -3,7 +3,7 @@
*
* Module Name: nspredef - Validation of ACPI predefined methods and objects
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index 9a80e3b23496..237b3ddeb075 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -3,7 +3,7 @@
*
* Module Name: nsprepkg - Validation of package objects for predefined names
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index be86fea8e4d4..90db2d85e7f5 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -3,7 +3,7 @@
*
* Module Name: nsrepair - Repair for objects returned by predefined methods
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index 663d85e0adba..125143c41bb8 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -4,7 +4,7 @@
* Module Name: nsrepair2 - Repair for objects returned by specific
* predefined methods
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index b8d007c84d32..e66abdab8f31 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -4,7 +4,7 @@
* Module Name: nsutils - Utilities for accessing ACPI namespace, accessing
* parents and siblings and Scope manipulation
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c
index ceea6af79d12..b7f3e8603ad8 100644
--- a/drivers/acpi/acpica/nswalk.c
+++ b/drivers/acpi/acpica/nswalk.c
@@ -3,7 +3,7 @@
*
* Module Name: nswalk - Functions for walking the ACPI namespace
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 161e60ddfb69..984129dcaa0c 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -4,7 +4,7 @@
* Module Name: nsxfname - Public interfaces to the ACPI subsystem
* ACPI Namespace oriented interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psargs.c b/drivers/acpi/acpica/psargs.c
index e62c7897fdf1..3b40db4ad9f3 100644
--- a/drivers/acpi/acpica/psargs.c
+++ b/drivers/acpi/acpica/psargs.c
@@ -3,7 +3,7 @@
*
* Module Name: psargs - Parse AML opcode arguments
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index 207805047bc4..3cf0687b9915 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -3,7 +3,7 @@
*
* Module Name: psloop - Main AML parse loop
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c
index ded2779fc8ea..2480c26c5171 100644
--- a/drivers/acpi/acpica/psobject.c
+++ b/drivers/acpi/acpica/psobject.c
@@ -3,7 +3,7 @@
*
* Module Name: psobject - Support for parse objects
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psopcode.c b/drivers/acpi/acpica/psopcode.c
index 43775c5ce17c..28af49263ebf 100644
--- a/drivers/acpi/acpica/psopcode.c
+++ b/drivers/acpi/acpica/psopcode.c
@@ -3,7 +3,7 @@
*
* Module Name: psopcode - Parser/Interpreter opcode information table
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c
index 15e7563829f1..ab9327f6a63c 100644
--- a/drivers/acpi/acpica/psopinfo.c
+++ b/drivers/acpi/acpica/psopinfo.c
@@ -3,7 +3,7 @@
*
* Module Name: psopinfo - AML opcode information functions and dispatch tables
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c
index 9b386530ffbe..c780046bf294 100644
--- a/drivers/acpi/acpica/psparse.c
+++ b/drivers/acpi/acpica/psparse.c
@@ -3,7 +3,7 @@
*
* Module Name: psparse - Parser top level AML parse routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psscope.c b/drivers/acpi/acpica/psscope.c
index f153ca804740..fceb311995e9 100644
--- a/drivers/acpi/acpica/psscope.c
+++ b/drivers/acpi/acpica/psscope.c
@@ -3,7 +3,7 @@
*
* Module Name: psscope - Parser scope stack management routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c
index 22d8a2becdd0..c8aef0694864 100644
--- a/drivers/acpi/acpica/pstree.c
+++ b/drivers/acpi/acpica/pstree.c
@@ -3,7 +3,7 @@
*
* Module Name: pstree - Parser op tree manipulation/traversal/search
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c
index 2512f584fa3c..00efae2f95ba 100644
--- a/drivers/acpi/acpica/psutils.c
+++ b/drivers/acpi/acpica/psutils.c
@@ -3,7 +3,7 @@
*
* Module Name: psutils - Parser miscellaneous utilities (Parser only)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/pswalk.c b/drivers/acpi/acpica/pswalk.c
index cf91841297c2..0fe3adf6b0e5 100644
--- a/drivers/acpi/acpica/pswalk.c
+++ b/drivers/acpi/acpica/pswalk.c
@@ -3,7 +3,7 @@
*
* Module Name: pswalk - Parser routines to walk parsed op tree(s)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c
index ee2ee2c858f2..1bbfc8def388 100644
--- a/drivers/acpi/acpica/psxface.c
+++ b/drivers/acpi/acpica/psxface.c
@@ -3,7 +3,7 @@
*
* Module Name: psxface - Parser external interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index 2cf36451e46f..523b1e9b98d4 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -3,7 +3,7 @@
*
* Module Name: tbdata - Table manager data structure functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 0041bfba9abc..907edc5edba7 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -3,7 +3,7 @@
*
* Module Name: tbfadt - FADT table utilities
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c
index b2abb40023a6..56d81e490a5c 100644
--- a/drivers/acpi/acpica/tbfind.c
+++ b/drivers/acpi/acpica/tbfind.c
@@ -3,7 +3,7 @@
*
* Module Name: tbfind - find table
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index ef1ffd36ab3f..0bb15add2245 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -3,7 +3,7 @@
*
* Module Name: tbinstal - ACPI table installation and removal
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index 4764f849cb78..0b3494ad9a70 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -3,7 +3,7 @@
*
* Module Name: tbprint - Table output utilities
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index c5f0b8ec70cc..dfe1ac3ae34a 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -3,7 +3,7 @@
*
* Module Name: tbutils - ACPI Table utilities
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 1640685bf4ae..f8403d480318 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -3,7 +3,7 @@
*
* Module Name: tbxface - ACPI table-oriented external interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 0782acf85722..bcba993d4dac 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -3,7 +3,7 @@
*
* Module Name: tbxfload - Table load/unload external interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index e2859d09ca2e..0edc6ef5d46d 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -3,7 +3,7 @@
*
* Module Name: tbxfroot - Find the root ACPI table (RSDT)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c
index bb260376bd59..99fa48722cf6 100644
--- a/drivers/acpi/acpica/utaddress.c
+++ b/drivers/acpi/acpica/utaddress.c
@@ -3,7 +3,7 @@
*
* Module Name: utaddress - op_region address range check
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index d64da4d9e8d0..303ab51b4fcf 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -3,7 +3,7 @@
*
* Module Name: utalloc - local memory allocation routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utascii.c b/drivers/acpi/acpica/utascii.c
index f6cd7d4f698b..d78656d960e8 100644
--- a/drivers/acpi/acpica/utascii.c
+++ b/drivers/acpi/acpica/utascii.c
@@ -3,7 +3,7 @@
*
* Module Name: utascii - Utility ascii functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utbuffer.c b/drivers/acpi/acpica/utbuffer.c
index db897af1de05..f2ec427f4e29 100644
--- a/drivers/acpi/acpica/utbuffer.c
+++ b/drivers/acpi/acpica/utbuffer.c
@@ -3,7 +3,7 @@
*
* Module Name: utbuffer - Buffer dump routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c
index 8533fce7fa93..1b03a2747401 100644
--- a/drivers/acpi/acpica/utcache.c
+++ b/drivers/acpi/acpica/utcache.c
@@ -3,7 +3,7 @@
*
* Module Name: utcache - local cache allocation routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index 1fb8327f3c3b..41bdd0278dd8 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -3,7 +3,7 @@
*
* Module Name: utcopy - Internal to external object translation utilities
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 5b169b5f0f1a..0c8cb0612414 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -3,7 +3,7 @@
*
* Module Name: utdebug - Debug print/trace routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index 65beaa237669..befdd13b403b 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -3,7 +3,7 @@
*
* Module Name: utdecode - Utility decoding routines (value-to-string)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index 558a9f3b0678..8180d1a458f5 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -3,7 +3,7 @@
*
* Module Name: uteval - Object evaluation
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index b0622ec4bb85..e6dcbdc3fc6e 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -3,7 +3,7 @@
*
* Module Name: utglobal - Global variables for the ACPI subsystem
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/uthex.c b/drivers/acpi/acpica/uthex.c
index b6da135d5f41..0e02f12513dc 100644
--- a/drivers/acpi/acpica/uthex.c
+++ b/drivers/acpi/acpica/uthex.c
@@ -3,7 +3,7 @@
*
* Module Name: uthex -- Hex/ASCII support functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index 30198c828ab6..3bb06935a2ad 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -3,7 +3,7 @@
*
* Module Name: utids - support for device Ids - HID, UID, CID, SUB, CLS
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index 6f33e7c72327..fdbc397c038d 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -3,7 +3,7 @@
*
* Module Name: utinit - Common ACPI subsystem initialization
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utlock.c b/drivers/acpi/acpica/utlock.c
index 8b4ff11d617a..46be549539e7 100644
--- a/drivers/acpi/acpica/utlock.c
+++ b/drivers/acpi/acpica/utlock.c
@@ -3,7 +3,7 @@
*
* Module Name: utlock - Reader/Writer lock interfaces
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index eee97a902696..3e60bdac2200 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -3,7 +3,7 @@
*
* Module Name: utobject - ACPI object create/delete/size/cache routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index ad2b218039d0..0a01c08dad8a 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -3,7 +3,7 @@
*
* Module Name: utosi - Support for the _OSI predefined control method
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
index 1b0f68f5ed8c..05fe3470fb93 100644
--- a/drivers/acpi/acpica/utpredef.c
+++ b/drivers/acpi/acpica/utpredef.c
@@ -3,7 +3,7 @@
*
* Module Name: utpredef - support functions for predefined names
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utprint.c b/drivers/acpi/acpica/utprint.c
index 5839f2fa7400..a874dac7db5c 100644
--- a/drivers/acpi/acpica/utprint.c
+++ b/drivers/acpi/acpica/utprint.c
@@ -3,7 +3,7 @@
*
* Module Name: utprint - Formatted printing routines
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 14de4d15e618..d366be431a84 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -3,7 +3,7 @@
*
* Module Name: uttrack - Memory allocation tracking routines (debug only)
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utuuid.c b/drivers/acpi/acpica/utuuid.c
index 0a7cf8007643..b8039954b0d1 100644
--- a/drivers/acpi/acpica/utuuid.c
+++ b/drivers/acpi/acpica/utuuid.c
@@ -3,7 +3,7 @@
*
* Module Name: utuuid -- UUID support functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index f497c4b30e65..ca7c9f0144ef 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -3,7 +3,7 @@
*
* Module Name: utxface - External interfaces, miscellaneous utility functions
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index cf769e94fe0f..653e3bb20036 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -3,7 +3,7 @@
*
* Module Name: utxfinit - External interfaces for ACPICA initialization
*
- * Copyright (C) 2000 - 2019, Intel Corp.
+ * Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 8906c80175e6..103acbbfcf9a 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -1180,7 +1180,7 @@ static int ghes_probe(struct platform_device *ghes_dev)
switch (generic->notify.type) {
case ACPI_HEST_NOTIFY_POLLED:
- timer_setup(&ghes->timer, ghes_poll_func, TIMER_DEFERRABLE);
+ timer_setup(&ghes->timer, ghes_poll_func, 0);
ghes_add_timer(ghes);
break;
case ACPI_HEST_NOTIFY_EXTERNAL:
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 33f71983e001..6078064684c6 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -298,6 +298,59 @@ out:
return status;
}
+struct iort_workaround_oem_info {
+ char oem_id[ACPI_OEM_ID_SIZE + 1];
+ char oem_table_id[ACPI_OEM_TABLE_ID_SIZE + 1];
+ u32 oem_revision;
+};
+
+static bool apply_id_count_workaround;
+
+static struct iort_workaround_oem_info wa_info[] __initdata = {
+ {
+ .oem_id = "HISI ",
+ .oem_table_id = "HIP07 ",
+ .oem_revision = 0,
+ }, {
+ .oem_id = "HISI ",
+ .oem_table_id = "HIP08 ",
+ .oem_revision = 0,
+ }
+};
+
+static void __init
+iort_check_id_count_workaround(struct acpi_table_header *tbl)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(wa_info); i++) {
+ if (!memcmp(wa_info[i].oem_id, tbl->oem_id, ACPI_OEM_ID_SIZE) &&
+ !memcmp(wa_info[i].oem_table_id, tbl->oem_table_id, ACPI_OEM_TABLE_ID_SIZE) &&
+ wa_info[i].oem_revision == tbl->oem_revision) {
+ apply_id_count_workaround = true;
+ pr_warn(FW_BUG "ID count for ID mapping entry is wrong, applying workaround\n");
+ break;
+ }
+ }
+}
+
+static inline u32 iort_get_map_max(struct acpi_iort_id_mapping *map)
+{
+ u32 map_max = map->input_base + map->id_count;
+
+ /*
+ * The IORT specification revision D (Section 3, table 4, page 9) says
+ * Number of IDs = The number of IDs in the range minus one, but the
+ * IORT code ignored the "minus one", and some firmware did that too,
+ * so apply a workaround here to keep compatible with both the spec
+ * compliant and non-spec compliant firmwares.
+ */
+ if (apply_id_count_workaround)
+ map_max--;
+
+ return map_max;
+}
+
static int iort_id_map(struct acpi_iort_id_mapping *map, u8 type, u32 rid_in,
u32 *rid_out)
{
@@ -314,8 +367,7 @@ static int iort_id_map(struct acpi_iort_id_mapping *map, u8 type, u32 rid_in,
return -ENXIO;
}
- if (rid_in < map->input_base ||
- (rid_in >= map->input_base + map->id_count))
+ if (rid_in < map->input_base || rid_in > iort_get_map_max(map))
return -ENXIO;
*rid_out = map->output_base + (rid_in - map->input_base);
@@ -1631,5 +1683,6 @@ void __init acpi_iort_init(void)
return;
}
+ iort_check_id_count_workaround(iort_table);
iort_init_platform_devices();
}
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 8f0e0c8d8c3d..15cc7d5a6185 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -38,6 +38,8 @@
#define PREFIX "ACPI: "
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
+#define ACPI_BATTERY_CAPACITY_VALID(capacity) \
+ ((capacity) != 0 && (capacity) != ACPI_BATTERY_VALUE_UNKNOWN)
#define ACPI_BATTERY_DEVICE_NAME "Battery"
@@ -192,7 +194,8 @@ static int acpi_battery_is_charged(struct acpi_battery *battery)
static bool acpi_battery_is_degraded(struct acpi_battery *battery)
{
- return battery->full_charge_capacity && battery->design_capacity &&
+ return ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity) &&
+ ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity) &&
battery->full_charge_capacity < battery->design_capacity;
}
@@ -214,7 +217,7 @@ static int acpi_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
- int ret = 0;
+ int full_capacity = ACPI_BATTERY_VALUE_UNKNOWN, ret = 0;
struct acpi_battery *battery = to_acpi_battery(psy);
if (acpi_battery_present(battery)) {
@@ -263,14 +266,14 @@ static int acpi_battery_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
- if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (!ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity))
ret = -ENODEV;
else
val->intval = battery->design_capacity * 1000;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
case POWER_SUPPLY_PROP_ENERGY_FULL:
- if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ if (!ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity))
ret = -ENODEV;
else
val->intval = battery->full_charge_capacity * 1000;
@@ -283,11 +286,17 @@ static int acpi_battery_get_property(struct power_supply *psy,
val->intval = battery->capacity_now * 1000;
break;
case POWER_SUPPLY_PROP_CAPACITY:
- if (battery->capacity_now && battery->full_charge_capacity)
- val->intval = battery->capacity_now * 100/
- battery->full_charge_capacity;
+ if (ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity))
+ full_capacity = battery->full_charge_capacity;
+ else if (ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity))
+ full_capacity = battery->design_capacity;
+
+ if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN ||
+ full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
+ ret = -ENODEV;
else
- val->intval = 0;
+ val->intval = battery->capacity_now * 100/
+ full_capacity;
break;
case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
if (battery->state & ACPI_BATTERY_STATE_CRITICAL)
@@ -333,6 +342,20 @@ static enum power_supply_property charge_battery_props[] = {
POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
+static enum power_supply_property charge_battery_full_cap_broken_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CYCLE_COUNT,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+ POWER_SUPPLY_PROP_CHARGE_NOW,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+ POWER_SUPPLY_PROP_SERIAL_NUMBER,
+};
+
static enum power_supply_property energy_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
@@ -794,20 +817,34 @@ static void __exit battery_hook_exit(void)
static int sysfs_add_battery(struct acpi_battery *battery)
{
struct power_supply_config psy_cfg = { .drv_data = battery, };
+ bool full_cap_broken = false;
+
+ if (!ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity) &&
+ !ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity))
+ full_cap_broken = true;
if (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) {
- battery->bat_desc.properties = charge_battery_props;
- battery->bat_desc.num_properties =
- ARRAY_SIZE(charge_battery_props);
- } else if (battery->full_charge_capacity == 0) {
- battery->bat_desc.properties =
- energy_battery_full_cap_broken_props;
- battery->bat_desc.num_properties =
- ARRAY_SIZE(energy_battery_full_cap_broken_props);
+ if (full_cap_broken) {
+ battery->bat_desc.properties =
+ charge_battery_full_cap_broken_props;
+ battery->bat_desc.num_properties =
+ ARRAY_SIZE(charge_battery_full_cap_broken_props);
+ } else {
+ battery->bat_desc.properties = charge_battery_props;
+ battery->bat_desc.num_properties =
+ ARRAY_SIZE(charge_battery_props);
+ }
} else {
- battery->bat_desc.properties = energy_battery_props;
- battery->bat_desc.num_properties =
- ARRAY_SIZE(energy_battery_props);
+ if (full_cap_broken) {
+ battery->bat_desc.properties =
+ energy_battery_full_cap_broken_props;
+ battery->bat_desc.num_properties =
+ ARRAY_SIZE(energy_battery_full_cap_broken_props);
+ } else {
+ battery->bat_desc.properties = energy_battery_props;
+ battery->bat_desc.num_properties =
+ ARRAY_SIZE(energy_battery_props);
+ }
}
battery->bat_desc.name = acpi_device_bid(battery->device);
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index b758b45737f5..f6925f16c4a2 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -122,6 +122,17 @@ static const struct dmi_system_id dmi_lid_quirks[] = {
},
.driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
},
+ {
+ /*
+ * Razer Blade Stealth 13 late 2019, notification of the LID device
+ * only happens on close, not on open and _LID always returns closed.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Razer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Razer Blade Stealth 13 Late 2019"),
+ },
+ .driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
+ },
{}
};
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 5e4a8860a9c0..b64c62bfcea5 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -1321,6 +1321,7 @@ int acpi_dev_pm_attach(struct device *dev, bool power_on)
*/
static const struct acpi_device_id special_pm_ids[] = {
{"PNP0C0B", }, /* Generic ACPI fan */
+ {"INT1044", }, /* Fan for Tiger Lake generation */
{"INT3404", }, /* Fan */
{}
};
diff --git a/drivers/acpi/dptf/dptf_power.c b/drivers/acpi/dptf/dptf_power.c
index eb58fc475a03..387f27ef3368 100644
--- a/drivers/acpi/dptf/dptf_power.c
+++ b/drivers/acpi/dptf/dptf_power.c
@@ -97,6 +97,7 @@ static int dptf_power_remove(struct platform_device *pdev)
}
static const struct acpi_device_id int3407_device_ids[] = {
+ {"INT1047", 0},
{"INT3407", 0},
{"", 0},
};
diff --git a/drivers/acpi/dptf/int340x_thermal.c b/drivers/acpi/dptf/int340x_thermal.c
index 5c7a90186e3c..1ec7b6900662 100644
--- a/drivers/acpi/dptf/int340x_thermal.c
+++ b/drivers/acpi/dptf/int340x_thermal.c
@@ -13,6 +13,10 @@
#define INT3401_DEVICE 0X01
static const struct acpi_device_id int340x_thermal_device_ids[] = {
+ {"INT1040"},
+ {"INT1043"},
+ {"INT1044"},
+ {"INT1047"},
{"INT3400"},
{"INT3401", INT3401_DEVICE},
{"INT3402"},
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d05be13c1022..08bc9751fe66 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1053,28 +1053,20 @@ void acpi_ec_unblock_transactions(void)
Event Management
-------------------------------------------------------------------------- */
static struct acpi_ec_query_handler *
-acpi_ec_get_query_handler(struct acpi_ec_query_handler *handler)
-{
- if (handler)
- kref_get(&handler->kref);
- return handler;
-}
-
-static struct acpi_ec_query_handler *
acpi_ec_get_query_handler_by_value(struct acpi_ec *ec, u8 value)
{
struct acpi_ec_query_handler *handler;
- bool found = false;
mutex_lock(&ec->mutex);
list_for_each_entry(handler, &ec->list, node) {
if (value == handler->query_bit) {
- found = true;
- break;
+ kref_get(&handler->kref);
+ mutex_unlock(&ec->mutex);
+ return handler;
}
}
mutex_unlock(&ec->mutex);
- return found ? acpi_ec_get_query_handler(handler) : NULL;
+ return NULL;
}
static void acpi_ec_query_handler_release(struct kref *kref)
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 816b0803f7fb..aaf4e8f348cf 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -25,6 +25,7 @@ static int acpi_fan_remove(struct platform_device *pdev);
static const struct acpi_device_id fan_device_ids[] = {
{"PNP0C0B", 0},
+ {"INT1044", 0},
{"INT3404", 0},
{"", 0},
};
@@ -44,12 +45,16 @@ static const struct dev_pm_ops acpi_fan_pm = {
#define FAN_PM_OPS_PTR NULL
#endif
+#define ACPI_FPS_NAME_LEN 20
+
struct acpi_fan_fps {
u64 control;
u64 trip_point;
u64 speed;
u64 noise_level;
u64 power;
+ char name[ACPI_FPS_NAME_LEN];
+ struct device_attribute dev_attr;
};
struct acpi_fan_fif {
@@ -265,6 +270,39 @@ static int acpi_fan_speed_cmp(const void *a, const void *b)
return fps1->speed - fps2->speed;
}
+static ssize_t show_state(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct acpi_fan_fps *fps = container_of(attr, struct acpi_fan_fps, dev_attr);
+ int count;
+
+ if (fps->control == 0xFFFFFFFF || fps->control > 100)
+ count = snprintf(buf, PAGE_SIZE, "not-defined:");
+ else
+ count = snprintf(buf, PAGE_SIZE, "%lld:", fps->control);
+
+ if (fps->trip_point == 0xFFFFFFFF || fps->trip_point > 9)
+ count += snprintf(&buf[count], PAGE_SIZE, "not-defined:");
+ else
+ count += snprintf(&buf[count], PAGE_SIZE, "%lld:", fps->trip_point);
+
+ if (fps->speed == 0xFFFFFFFF)
+ count += snprintf(&buf[count], PAGE_SIZE, "not-defined:");
+ else
+ count += snprintf(&buf[count], PAGE_SIZE, "%lld:", fps->speed);
+
+ if (fps->noise_level == 0xFFFFFFFF)
+ count += snprintf(&buf[count], PAGE_SIZE, "not-defined:");
+ else
+ count += snprintf(&buf[count], PAGE_SIZE, "%lld:", fps->noise_level * 100);
+
+ if (fps->power == 0xFFFFFFFF)
+ count += snprintf(&buf[count], PAGE_SIZE, "not-defined\n");
+ else
+ count += snprintf(&buf[count], PAGE_SIZE, "%lld\n", fps->power);
+
+ return count;
+}
+
static int acpi_fan_get_fps(struct acpi_device *device)
{
struct acpi_fan *fan = acpi_driver_data(device);
@@ -295,12 +333,13 @@ static int acpi_fan_get_fps(struct acpi_device *device)
}
for (i = 0; i < fan->fps_count; i++) {
struct acpi_buffer format = { sizeof("NNNNN"), "NNNNN" };
- struct acpi_buffer fps = { sizeof(fan->fps[i]), &fan->fps[i] };
+ struct acpi_buffer fps = { offsetof(struct acpi_fan_fps, name),
+ &fan->fps[i] };
status = acpi_extract_package(&obj->package.elements[i + 1],
&format, &fps);
if (ACPI_FAILURE(status)) {
dev_err(&device->dev, "Invalid _FPS element\n");
- break;
+ goto err;
}
}
@@ -308,6 +347,24 @@ static int acpi_fan_get_fps(struct acpi_device *device)
sort(fan->fps, fan->fps_count, sizeof(*fan->fps),
acpi_fan_speed_cmp, NULL);
+ for (i = 0; i < fan->fps_count; ++i) {
+ struct acpi_fan_fps *fps = &fan->fps[i];
+
+ snprintf(fps->name, ACPI_FPS_NAME_LEN, "state%d", i);
+ fps->dev_attr.show = show_state;
+ fps->dev_attr.store = NULL;
+ fps->dev_attr.attr.name = fps->name;
+ fps->dev_attr.attr.mode = 0444;
+ status = sysfs_create_file(&device->dev.kobj, &fps->dev_attr.attr);
+ if (status) {
+ int j;
+
+ for (j = 0; j < i; ++j)
+ sysfs_remove_file(&device->dev.kobj, &fan->fps[j].dev_attr.attr);
+ break;
+ }
+ }
+
err:
kfree(obj);
return status;
@@ -330,14 +387,20 @@ static int acpi_fan_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, fan);
if (acpi_fan_is_acpi4(device)) {
- if (acpi_fan_get_fif(device) || acpi_fan_get_fps(device))
- goto end;
+ result = acpi_fan_get_fif(device);
+ if (result)
+ return result;
+
+ result = acpi_fan_get_fps(device);
+ if (result)
+ return result;
+
fan->acpi4 = true;
} else {
result = acpi_device_update_power(device, NULL);
if (result) {
dev_err(&device->dev, "Failed to set initial power state\n");
- goto end;
+ goto err_end;
}
}
@@ -350,7 +413,7 @@ static int acpi_fan_probe(struct platform_device *pdev)
&fan_cooling_ops);
if (IS_ERR(cdev)) {
result = PTR_ERR(cdev);
- goto end;
+ goto err_end;
}
dev_dbg(&pdev->dev, "registered as cooling_device%d\n", cdev->id);
@@ -365,10 +428,21 @@ static int acpi_fan_probe(struct platform_device *pdev)
result = sysfs_create_link(&cdev->device.kobj,
&pdev->dev.kobj,
"device");
- if (result)
+ if (result) {
dev_err(&pdev->dev, "Failed to create sysfs link 'device'\n");
+ goto err_end;
+ }
+
+ return 0;
+
+err_end:
+ if (fan->acpi4) {
+ int i;
+
+ for (i = 0; i < fan->fps_count; ++i)
+ sysfs_remove_file(&device->dev.kobj, &fan->fps[i].dev_attr.attr);
+ }
-end:
return result;
}
@@ -376,6 +450,13 @@ static int acpi_fan_remove(struct platform_device *pdev)
{
struct acpi_fan *fan = platform_get_drvdata(pdev);
+ if (fan->acpi4) {
+ struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
+ int i;
+
+ for (i = 0; i < fan->fps_count; ++i)
+ sysfs_remove_file(&device->dev.kobj, &fan->fps[i].dev_attr.attr);
+ }
sysfs_remove_link(&pdev->dev.kobj, "thermal_cooling");
sysfs_remove_link(&fan->cdev->device.kobj, "device");
thermal_cooling_device_unregister(fan->cdev);
diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c
index f31544d3656e..4ae93350b70d 100644
--- a/drivers/acpi/pptt.c
+++ b/drivers/acpi/pptt.c
@@ -98,11 +98,11 @@ static inline bool acpi_pptt_match_type(int table_type, int type)
*
* Return: The cache structure and the level we terminated with.
*/
-static int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
- int local_level,
- struct acpi_subtable_header *res,
- struct acpi_pptt_cache **found,
- int level, int type)
+static unsigned int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
+ unsigned int local_level,
+ struct acpi_subtable_header *res,
+ struct acpi_pptt_cache **found,
+ unsigned int level, int type)
{
struct acpi_pptt_cache *cache;
@@ -119,7 +119,7 @@ static int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
if (*found != NULL && cache != *found)
pr_warn("Found duplicate cache level/type unable to determine uniqueness\n");
- pr_debug("Found cache @ level %d\n", level);
+ pr_debug("Found cache @ level %u\n", level);
*found = cache;
/*
* continue looking at this node's resource list
@@ -132,16 +132,17 @@ static int acpi_pptt_walk_cache(struct acpi_table_header *table_hdr,
return local_level;
}
-static struct acpi_pptt_cache *acpi_find_cache_level(struct acpi_table_header *table_hdr,
- struct acpi_pptt_processor *cpu_node,
- int *starting_level, int level,
- int type)
+static struct acpi_pptt_cache *
+acpi_find_cache_level(struct acpi_table_header *table_hdr,
+ struct acpi_pptt_processor *cpu_node,
+ unsigned int *starting_level, unsigned int level,
+ int type)
{
struct acpi_subtable_header *res;
- int number_of_levels = *starting_level;
+ unsigned int number_of_levels = *starting_level;
int resource = 0;
struct acpi_pptt_cache *ret = NULL;
- int local_level;
+ unsigned int local_level;
/* walk down from processor node */
while ((res = acpi_get_pptt_resource(table_hdr, cpu_node, resource))) {
@@ -321,12 +322,12 @@ static struct acpi_pptt_cache *acpi_find_cache_node(struct acpi_table_header *ta
unsigned int level,
struct acpi_pptt_processor **node)
{
- int total_levels = 0;
+ unsigned int total_levels = 0;
struct acpi_pptt_cache *found = NULL;
struct acpi_pptt_processor *cpu_node;
u8 acpi_type = acpi_cache_type(type);
- pr_debug("Looking for CPU %d's level %d cache type %d\n",
+ pr_debug("Looking for CPU %d's level %u cache type %d\n",
acpi_cpu_id, level, acpi_type);
cpu_node = acpi_find_processor_node(table_hdr, acpi_cpu_id);
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 2ae95df2e74f..dcc289e30166 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -299,164 +299,24 @@ static int acpi_processor_get_power_info_default(struct acpi_processor *pr)
static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
{
- acpi_status status;
- u64 count;
- int current_count;
- int i, ret = 0;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *cst;
+ int ret;
if (nocst)
return -ENODEV;
- current_count = 0;
-
- status = acpi_evaluate_object(pr->handle, "_CST", NULL, &buffer);
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No _CST, giving up\n"));
- return -ENODEV;
- }
-
- cst = buffer.pointer;
-
- /* There must be at least 2 elements */
- if (!cst || (cst->type != ACPI_TYPE_PACKAGE) || cst->package.count < 2) {
- pr_err("not enough elements in _CST\n");
- ret = -EFAULT;
- goto end;
- }
-
- count = cst->package.elements[0].integer.value;
+ ret = acpi_processor_evaluate_cst(pr->handle, pr->id, &pr->power);
+ if (ret)
+ return ret;
- /* Validate number of power states. */
- if (count < 1 || count != cst->package.count - 1) {
- pr_err("count given by _CST is not valid\n");
- ret = -EFAULT;
- goto end;
- }
+ /*
+ * It is expected that there will be at least 2 states, C1 and
+ * something else (C2 or C3), so fail if that is not the case.
+ */
+ if (pr->power.count < 2)
+ return -EFAULT;
- /* Tell driver that at least _CST is supported. */
pr->flags.has_cst = 1;
-
- for (i = 1; i <= count; i++) {
- union acpi_object *element;
- union acpi_object *obj;
- struct acpi_power_register *reg;
- struct acpi_processor_cx cx;
-
- memset(&cx, 0, sizeof(cx));
-
- element = &(cst->package.elements[i]);
- if (element->type != ACPI_TYPE_PACKAGE)
- continue;
-
- if (element->package.count != 4)
- continue;
-
- obj = &(element->package.elements[0]);
-
- if (obj->type != ACPI_TYPE_BUFFER)
- continue;
-
- reg = (struct acpi_power_register *)obj->buffer.pointer;
-
- if (reg->space_id != ACPI_ADR_SPACE_SYSTEM_IO &&
- (reg->space_id != ACPI_ADR_SPACE_FIXED_HARDWARE))
- continue;
-
- /* There should be an easy way to extract an integer... */
- obj = &(element->package.elements[1]);
- if (obj->type != ACPI_TYPE_INTEGER)
- continue;
-
- cx.type = obj->integer.value;
- /*
- * Some buggy BIOSes won't list C1 in _CST -
- * Let acpi_processor_get_power_info_default() handle them later
- */
- if (i == 1 && cx.type != ACPI_STATE_C1)
- current_count++;
-
- cx.address = reg->address;
- cx.index = current_count + 1;
-
- cx.entry_method = ACPI_CSTATE_SYSTEMIO;
- if (reg->space_id == ACPI_ADR_SPACE_FIXED_HARDWARE) {
- if (acpi_processor_ffh_cstate_probe
- (pr->id, &cx, reg) == 0) {
- cx.entry_method = ACPI_CSTATE_FFH;
- } else if (cx.type == ACPI_STATE_C1) {
- /*
- * C1 is a special case where FIXED_HARDWARE
- * can be handled in non-MWAIT way as well.
- * In that case, save this _CST entry info.
- * Otherwise, ignore this info and continue.
- */
- cx.entry_method = ACPI_CSTATE_HALT;
- snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI HLT");
- } else {
- continue;
- }
- if (cx.type == ACPI_STATE_C1 &&
- (boot_option_idle_override == IDLE_NOMWAIT)) {
- /*
- * In most cases the C1 space_id obtained from
- * _CST object is FIXED_HARDWARE access mode.
- * But when the option of idle=halt is added,
- * the entry_method type should be changed from
- * CSTATE_FFH to CSTATE_HALT.
- * When the option of idle=nomwait is added,
- * the C1 entry_method type should be
- * CSTATE_HALT.
- */
- cx.entry_method = ACPI_CSTATE_HALT;
- snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI HLT");
- }
- } else {
- snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI IOPORT 0x%x",
- cx.address);
- }
-
- if (cx.type == ACPI_STATE_C1) {
- cx.valid = 1;
- }
-
- obj = &(element->package.elements[2]);
- if (obj->type != ACPI_TYPE_INTEGER)
- continue;
-
- cx.latency = obj->integer.value;
-
- obj = &(element->package.elements[3]);
- if (obj->type != ACPI_TYPE_INTEGER)
- continue;
-
- current_count++;
- memcpy(&(pr->power.states[current_count]), &cx, sizeof(cx));
-
- /*
- * We support total ACPI_PROCESSOR_MAX_POWER - 1
- * (From 1 through ACPI_PROCESSOR_MAX_POWER - 1)
- */
- if (current_count >= (ACPI_PROCESSOR_MAX_POWER - 1)) {
- pr_warn("Limiting number of power states to max (%d)\n",
- ACPI_PROCESSOR_MAX_POWER);
- pr_warn("Please increase ACPI_PROCESSOR_MAX_POWER if needed.\n");
- break;
- }
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d power states\n",
- current_count));
-
- /* Validate number of power states discovered */
- if (current_count < 2)
- ret = -EFAULT;
-
- end:
- kfree(buffer.pointer);
-
- return ret;
+ return 0;
}
static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
@@ -909,7 +769,6 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
static inline void acpi_processor_cstate_first_run_checks(void)
{
- acpi_status status;
static int first_run;
if (first_run)
@@ -921,13 +780,10 @@ static inline void acpi_processor_cstate_first_run_checks(void)
max_cstate);
first_run++;
- if (acpi_gbl_FADT.cst_control && !nocst) {
- status = acpi_os_write_port(acpi_gbl_FADT.smi_command,
- acpi_gbl_FADT.cst_control, 8);
- if (ACPI_FAILURE(status))
- ACPI_EXCEPTION((AE_INFO, status,
- "Notifying BIOS of _CST ability failed"));
- }
+ if (nocst)
+ return;
+
+ acpi_processor_claim_cst_control();
}
#else
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 6747a279621b..439880629839 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -61,8 +61,11 @@ static struct notifier_block tts_notifier = {
static int acpi_sleep_prepare(u32 acpi_state)
{
#ifdef CONFIG_ACPI_SLEEP
+ unsigned long acpi_wakeup_address;
+
/* do we have a wakeup address for S2 and S3? */
if (acpi_state == ACPI_STATE_S3) {
+ acpi_wakeup_address = acpi_get_wakeup_address();
if (!acpi_wakeup_address)
return -EFAULT;
acpi_set_waking_vector(acpi_wakeup_address);
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 31014c7d3793..419f814d596a 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -303,6 +303,22 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
},
},
{
+ .callback = video_detect_force_native,
+ .ident = "Lenovo E41-25",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "81FS"),
+ },
+ },
+ {
+ .callback = video_detect_force_native,
+ .ident = "Lenovo E41-45",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "82BK"),
+ },
+ },
+ {
/* https://bugzilla.redhat.com/show_bug.cgi?id=1217249 */
.callback = video_detect_force_native,
.ident = "Apple MacBook Pro 12,1",
@@ -336,6 +352,11 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),
},
},
+
+ /*
+ * Desktops which falsely report a backlight and which our heuristics
+ * for this do not catch.
+ */
{
.callback = video_detect_force_none,
.ident = "Dell OptiPlex 9020M",
@@ -344,6 +365,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"),
},
},
+ {
+ .callback = video_detect_force_none,
+ .ident = "MSI MS-7721",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MSI"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MS-7721"),
+ },
+ },
{ },
};
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index b2dad43dbf82..a6b2082c24f8 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2249,10 +2249,12 @@ static void binder_deferred_fd_close(int fd)
return;
init_task_work(&twcb->twork, binder_do_fd_close);
__close_fd_get_file(fd, &twcb->file);
- if (twcb->file)
+ if (twcb->file) {
+ filp_close(twcb->file, current->files);
task_work_add(current, &twcb->twork, true);
- else
+ } else {
kfree(twcb);
+ }
}
static void binder_transaction_buffer_release(struct binder_proc *proc,
@@ -5199,10 +5201,11 @@ err_bad_arg:
static int binder_open(struct inode *nodp, struct file *filp)
{
- struct binder_proc *proc;
+ struct binder_proc *proc, *itr;
struct binder_device *binder_dev;
struct binderfs_info *info;
struct dentry *binder_binderfs_dir_entry_proc = NULL;
+ bool existing_pid = false;
binder_debug(BINDER_DEBUG_OPEN_CLOSE, "%s: %d:%d\n", __func__,
current->group_leader->pid, current->pid);
@@ -5235,19 +5238,24 @@ static int binder_open(struct inode *nodp, struct file *filp)
filp->private_data = proc;
mutex_lock(&binder_procs_lock);
+ hlist_for_each_entry(itr, &binder_procs, proc_node) {
+ if (itr->pid == proc->pid) {
+ existing_pid = true;
+ break;
+ }
+ }
hlist_add_head(&proc->proc_node, &binder_procs);
mutex_unlock(&binder_procs_lock);
- if (binder_debugfs_dir_entry_proc) {
+ if (binder_debugfs_dir_entry_proc && !existing_pid) {
char strbuf[11];
snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
/*
- * proc debug entries are shared between contexts, so
- * this will fail if the process tries to open the driver
- * again with a different context. The priting code will
- * anyway print all contexts that a given PID has, so this
- * is not a problem.
+ * proc debug entries are shared between contexts.
+ * Only create for the first PID to avoid debugfs log spamming
+ * The printing code will anyway print all contexts for a given
+ * PID so this is not a problem.
*/
proc->debugfs_entry = debugfs_create_file(strbuf, 0444,
binder_debugfs_dir_entry_proc,
@@ -5255,19 +5263,16 @@ static int binder_open(struct inode *nodp, struct file *filp)
&proc_fops);
}
- if (binder_binderfs_dir_entry_proc) {
+ if (binder_binderfs_dir_entry_proc && !existing_pid) {
char strbuf[11];
struct dentry *binderfs_entry;
snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
/*
* Similar to debugfs, the process specific log file is shared
- * between contexts. If the file has already been created for a
- * process, the following binderfs_create_file() call will
- * fail with error code EEXIST if another context of the same
- * process invoked binder_open(). This is ok since same as
- * debugfs, the log file will contain information on all
- * contexts of a given PID.
+ * between contexts. Only create for the first PID.
+ * This is ok since same as debugfs, the log file will contain
+ * information on all contexts of a given PID.
*/
binderfs_entry = binderfs_create_file(binder_binderfs_dir_entry_proc,
strbuf, &proc_fops, (void *)(unsigned long)proc->pid);
@@ -5277,10 +5282,8 @@ static int binder_open(struct inode *nodp, struct file *filp)
int error;
error = PTR_ERR(binderfs_entry);
- if (error != -EEXIST) {
- pr_warn("Unable to create file %s in binderfs (error %d)\n",
- strbuf, error);
- }
+ pr_warn("Unable to create file %s in binderfs (error %d)\n",
+ strbuf, error);
}
}
diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c
index 46dc54d18f0b..2a04e8abd397 100644
--- a/drivers/ata/acard-ahci.c
+++ b/drivers/ata/acard-ahci.c
@@ -218,7 +218,6 @@ static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc)
void *cmd_tbl;
u32 opts;
const u32 cmd_fis_len = 5; /* five dwords */
- unsigned int n_elem;
/*
* Fill in command table information. First, the header,
@@ -232,9 +231,8 @@ static enum ata_completion_errors acard_ahci_qc_prep(struct ata_queued_cmd *qc)
memcpy(cmd_tbl + AHCI_CMD_TBL_CDB, qc->cdb, qc->dev->cdb_len);
}
- n_elem = 0;
if (qc->flags & ATA_QCFLAG_DMAMAP)
- n_elem = acard_ahci_fill_sg(qc, cmd_tbl);
+ acard_ahci_fill_sg(qc, cmd_tbl);
/*
* Fill in command slot information.
diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
index f41744b9b38a..6853dbb4131d 100644
--- a/drivers/ata/ahci_brcm.c
+++ b/drivers/ata/ahci_brcm.c
@@ -73,11 +73,11 @@ enum brcm_ahci_version {
BRCM_SATA_BCM7425 = 1,
BRCM_SATA_BCM7445,
BRCM_SATA_NSP,
+ BRCM_SATA_BCM7216,
};
enum brcm_ahci_quirks {
- BRCM_AHCI_QUIRK_NO_NCQ = BIT(0),
- BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE = BIT(1),
+ BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE = BIT(0),
};
struct brcm_ahci_priv {
@@ -213,19 +213,12 @@ static void brcm_sata_phys_disable(struct brcm_ahci_priv *priv)
brcm_sata_phy_disable(priv, i);
}
-static u32 brcm_ahci_get_portmask(struct platform_device *pdev,
+static u32 brcm_ahci_get_portmask(struct ahci_host_priv *hpriv,
struct brcm_ahci_priv *priv)
{
- void __iomem *ahci;
- struct resource *res;
u32 impl;
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ahci");
- ahci = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(ahci))
- return 0;
-
- impl = readl(ahci + HOST_PORTS_IMPL);
+ impl = readl(hpriv->mmio + HOST_PORTS_IMPL);
if (fls(impl) > SATA_TOP_MAX_PHYS)
dev_warn(priv->dev, "warning: more ports than PHYs (%#x)\n",
@@ -233,9 +226,6 @@ static u32 brcm_ahci_get_portmask(struct platform_device *pdev,
else if (!impl)
dev_info(priv->dev, "no ports found\n");
- devm_iounmap(&pdev->dev, ahci);
- devm_release_mem_region(&pdev->dev, res->start, resource_size(res));
-
return impl;
}
@@ -285,6 +275,13 @@ static unsigned int brcm_ahci_read_id(struct ata_device *dev,
/* Perform the SATA PHY reset sequence */
brcm_sata_phy_disable(priv, ap->port_no);
+ /* Reset the SATA clock */
+ ahci_platform_disable_clks(hpriv);
+ msleep(10);
+
+ ahci_platform_enable_clks(hpriv);
+ msleep(10);
+
/* Bring the PHY back on */
brcm_sata_phy_enable(priv, ap->port_no);
@@ -341,7 +338,6 @@ static const struct ata_port_info ahci_brcm_port_info = {
.port_ops = &ahci_brcm_platform_ops,
};
-#ifdef CONFIG_PM_SLEEP
static int brcm_ahci_suspend(struct device *dev)
{
struct ata_host *host = dev_get_drvdata(dev);
@@ -349,23 +345,70 @@ static int brcm_ahci_suspend(struct device *dev)
struct brcm_ahci_priv *priv = hpriv->plat_data;
int ret;
- ret = ahci_platform_suspend(dev);
brcm_sata_phys_disable(priv);
+
+ if (IS_ENABLED(CONFIG_PM_SLEEP))
+ ret = ahci_platform_suspend(dev);
+ else
+ ret = 0;
+
+ if (priv->version != BRCM_SATA_BCM7216)
+ reset_control_assert(priv->rcdev);
+
return ret;
}
-static int brcm_ahci_resume(struct device *dev)
+static int __maybe_unused brcm_ahci_resume(struct device *dev)
{
struct ata_host *host = dev_get_drvdata(dev);
struct ahci_host_priv *hpriv = host->private_data;
struct brcm_ahci_priv *priv = hpriv->plat_data;
+ int ret = 0;
+
+ if (priv->version == BRCM_SATA_BCM7216)
+ ret = reset_control_reset(priv->rcdev);
+ else
+ ret = reset_control_deassert(priv->rcdev);
+ if (ret)
+ return ret;
+
+ /* Make sure clocks are turned on before re-configuration */
+ ret = ahci_platform_enable_clks(hpriv);
+ if (ret)
+ return ret;
brcm_sata_init(priv);
brcm_sata_phys_enable(priv);
brcm_sata_alpm_init(hpriv);
- return ahci_platform_resume(dev);
+
+ /* Since we had to enable clocks earlier on, we cannot use
+ * ahci_platform_resume() as-is since a second call to
+ * ahci_platform_enable_resources() would bump up the resources
+ * (regulators, clocks, PHYs) count artificially so we copy the part
+ * after ahci_platform_enable_resources().
+ */
+ ret = ahci_platform_enable_phys(hpriv);
+ if (ret)
+ goto out_disable_phys;
+
+ ret = ahci_platform_resume_host(dev);
+ if (ret)
+ goto out_disable_platform_phys;
+
+ /* We resumed so update PM runtime state */
+ pm_runtime_disable(dev);
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+
+ return 0;
+
+out_disable_platform_phys:
+ ahci_platform_disable_phys(hpriv);
+out_disable_phys:
+ brcm_sata_phys_disable(priv);
+ ahci_platform_disable_clks(hpriv);
+ return ret;
}
-#endif
static struct scsi_host_template ahci_platform_sht = {
AHCI_SHT(DRV_NAME),
@@ -376,6 +419,7 @@ static const struct of_device_id ahci_of_match[] = {
{.compatible = "brcm,bcm7445-ahci", .data = (void *)BRCM_SATA_BCM7445},
{.compatible = "brcm,bcm63138-ahci", .data = (void *)BRCM_SATA_BCM7445},
{.compatible = "brcm,bcm-nsp-ahci", .data = (void *)BRCM_SATA_NSP},
+ {.compatible = "brcm,bcm7216-ahci", .data = (void *)BRCM_SATA_BCM7216},
{},
};
MODULE_DEVICE_TABLE(of, ahci_of_match);
@@ -384,6 +428,7 @@ static int brcm_ahci_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id;
struct device *dev = &pdev->dev;
+ const char *reset_name = NULL;
struct brcm_ahci_priv *priv;
struct ahci_host_priv *hpriv;
struct resource *res;
@@ -405,49 +450,86 @@ static int brcm_ahci_probe(struct platform_device *pdev)
if (IS_ERR(priv->top_ctrl))
return PTR_ERR(priv->top_ctrl);
- /* Reset is optional depending on platform */
- priv->rcdev = devm_reset_control_get(&pdev->dev, "ahci");
- if (!IS_ERR_OR_NULL(priv->rcdev))
- reset_control_deassert(priv->rcdev);
+ /* Reset is optional depending on platform and named differently */
+ if (priv->version == BRCM_SATA_BCM7216)
+ reset_name = "rescal";
+ else
+ reset_name = "ahci";
+
+ priv->rcdev = devm_reset_control_get_optional(&pdev->dev, reset_name);
+ if (IS_ERR(priv->rcdev))
+ return PTR_ERR(priv->rcdev);
+
+ hpriv = ahci_platform_get_resources(pdev, 0);
+ if (IS_ERR(hpriv))
+ return PTR_ERR(hpriv);
- if ((priv->version == BRCM_SATA_BCM7425) ||
- (priv->version == BRCM_SATA_NSP)) {
- priv->quirks |= BRCM_AHCI_QUIRK_NO_NCQ;
+ hpriv->plat_data = priv;
+ hpriv->flags = AHCI_HFLAG_WAKE_BEFORE_STOP | AHCI_HFLAG_NO_WRITE_TO_RO;
+
+ switch (priv->version) {
+ case BRCM_SATA_BCM7425:
+ hpriv->flags |= AHCI_HFLAG_DELAY_ENGINE;
+ /* fall through */
+ case BRCM_SATA_NSP:
+ hpriv->flags |= AHCI_HFLAG_NO_NCQ;
priv->quirks |= BRCM_AHCI_QUIRK_SKIP_PHY_ENABLE;
+ break;
+ default:
+ break;
}
+ if (priv->version == BRCM_SATA_BCM7216)
+ ret = reset_control_reset(priv->rcdev);
+ else
+ ret = reset_control_deassert(priv->rcdev);
+ if (ret)
+ return ret;
+
+ ret = ahci_platform_enable_clks(hpriv);
+ if (ret)
+ goto out_reset;
+
+ /* Must be first so as to configure endianness including that
+ * of the standard AHCI register space.
+ */
brcm_sata_init(priv);
- priv->port_mask = brcm_ahci_get_portmask(pdev, priv);
- if (!priv->port_mask)
- return -ENODEV;
+ /* Initializes priv->port_mask which is used below */
+ priv->port_mask = brcm_ahci_get_portmask(hpriv, priv);
+ if (!priv->port_mask) {
+ ret = -ENODEV;
+ goto out_disable_clks;
+ }
+ /* Must be done before ahci_platform_enable_phys() */
brcm_sata_phys_enable(priv);
- hpriv = ahci_platform_get_resources(pdev, 0);
- if (IS_ERR(hpriv))
- return PTR_ERR(hpriv);
- hpriv->plat_data = priv;
- hpriv->flags = AHCI_HFLAG_WAKE_BEFORE_STOP;
-
brcm_sata_alpm_init(hpriv);
- ret = ahci_platform_enable_resources(hpriv);
+ ret = ahci_platform_enable_phys(hpriv);
if (ret)
- return ret;
-
- if (priv->quirks & BRCM_AHCI_QUIRK_NO_NCQ)
- hpriv->flags |= AHCI_HFLAG_NO_NCQ;
- hpriv->flags |= AHCI_HFLAG_NO_WRITE_TO_RO;
+ goto out_disable_phys;
ret = ahci_platform_init_host(pdev, hpriv, &ahci_brcm_port_info,
&ahci_platform_sht);
if (ret)
- return ret;
+ goto out_disable_platform_phys;
dev_info(dev, "Broadcom AHCI SATA3 registered\n");
return 0;
+
+out_disable_platform_phys:
+ ahci_platform_disable_phys(hpriv);
+out_disable_phys:
+ brcm_sata_phys_disable(priv);
+out_disable_clks:
+ ahci_platform_disable_clks(hpriv);
+out_reset:
+ if (priv->version != BRCM_SATA_BCM7216)
+ reset_control_assert(priv->rcdev);
+ return ret;
}
static int brcm_ahci_remove(struct platform_device *pdev)
@@ -457,20 +539,35 @@ static int brcm_ahci_remove(struct platform_device *pdev)
struct brcm_ahci_priv *priv = hpriv->plat_data;
int ret;
+ brcm_sata_phys_disable(priv);
+
ret = ata_platform_remove_one(pdev);
if (ret)
return ret;
- brcm_sata_phys_disable(priv);
-
return 0;
}
+static void brcm_ahci_shutdown(struct platform_device *pdev)
+{
+ int ret;
+
+ /* All resources releasing happens via devres, but our device, unlike a
+ * proper remove is not disappearing, therefore using
+ * brcm_ahci_suspend() here which does explicit power management is
+ * appropriate.
+ */
+ ret = brcm_ahci_suspend(&pdev->dev);
+ if (ret)
+ dev_err(&pdev->dev, "failed to shutdown\n");
+}
+
static SIMPLE_DEV_PM_OPS(ahci_brcm_pm_ops, brcm_ahci_suspend, brcm_ahci_resume);
static struct platform_driver brcm_ahci_driver = {
.probe = brcm_ahci_probe,
.remove = brcm_ahci_remove,
+ .shutdown = brcm_ahci_shutdown,
.driver = {
.name = DRV_NAME,
.of_match_table = ahci_of_match,
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index 8befce036af8..129556fcf6be 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(ahci_platform_ops);
* RETURNS:
* 0 on success otherwise a negative error code
*/
-static int ahci_platform_enable_phys(struct ahci_host_priv *hpriv)
+int ahci_platform_enable_phys(struct ahci_host_priv *hpriv)
{
int rc, i;
@@ -74,6 +74,7 @@ disable_phys:
}
return rc;
}
+EXPORT_SYMBOL_GPL(ahci_platform_enable_phys);
/**
* ahci_platform_disable_phys - Disable PHYs
@@ -81,7 +82,7 @@ disable_phys:
*
* This function disables all PHYs found in hpriv->phys.
*/
-static void ahci_platform_disable_phys(struct ahci_host_priv *hpriv)
+void ahci_platform_disable_phys(struct ahci_host_priv *hpriv)
{
int i;
@@ -90,6 +91,7 @@ static void ahci_platform_disable_phys(struct ahci_host_priv *hpriv)
phy_exit(hpriv->phys[i]);
}
}
+EXPORT_SYMBOL_GPL(ahci_platform_disable_phys);
/**
* ahci_platform_enable_clks - Enable platform clocks
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e9017c570bc5..6f4ab5c5b52d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5329,6 +5329,30 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
}
/**
+ * ata_qc_get_active - get bitmask of active qcs
+ * @ap: port in question
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ *
+ * RETURNS:
+ * Bitmask of active qcs
+ */
+u64 ata_qc_get_active(struct ata_port *ap)
+{
+ u64 qc_active = ap->qc_active;
+
+ /* ATA_TAG_INTERNAL is sent to hw as tag 0 */
+ if (qc_active & (1ULL << ATA_TAG_INTERNAL)) {
+ qc_active |= (1 << 0);
+ qc_active &= ~(1ULL << ATA_TAG_INTERNAL);
+ }
+
+ return qc_active;
+}
+EXPORT_SYMBOL_GPL(ata_qc_get_active);
+
+/**
* ata_qc_complete_multiple - Complete multiple qcs successfully
* @ap: port in question
* @qc_active: new qc_active mask
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 58e09ffe8b9c..eb2eb599e602 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -17,6 +17,7 @@
* - http://www.t13.org/
*/
+#include <linux/compat.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/blkdev.h>
@@ -761,6 +762,10 @@ static int ata_ioc32(struct ata_port *ap)
return 0;
}
+/*
+ * This handles both native and compat commands, so anything added
+ * here must have a compatible argument, or check in_compat_syscall()
+ */
int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
unsigned int cmd, void __user *arg)
{
@@ -773,6 +778,10 @@ int ata_sas_scsi_ioctl(struct ata_port *ap, struct scsi_device *scsidev,
spin_lock_irqsave(ap->lock, flags);
val = ata_ioc32(ap);
spin_unlock_irqrestore(ap->lock, flags);
+#ifdef CONFIG_COMPAT
+ if (in_compat_syscall())
+ return put_user(val, (compat_ulong_t __user *)arg);
+#endif
return put_user(val, (unsigned long __user *)arg);
case HDIO_SET_32BIT:
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 135173c8d138..391dff0f25a2 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -824,7 +824,7 @@ static int arasan_cf_probe(struct platform_device *pdev)
quirk |= CF_BROKEN_MWDMA | CF_BROKEN_UDMA;
acdev->pbase = res->start;
- acdev->vbase = devm_ioremap_nocache(&pdev->dev, res->start,
+ acdev->vbase = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!acdev->vbase) {
dev_warn(&pdev->dev, "ioremap fail\n");
diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index 1bfd0154dad5..e47a28271f5b 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -979,7 +979,7 @@ static void pata_macio_invariants(struct pata_macio_priv *priv)
priv->aapl_bus_id = bidp ? *bidp : 0;
/* Fixup missing Apple bus ID in case of media-bay */
- if (priv->mediabay && bidp == 0)
+ if (priv->mediabay && !bidp)
priv->aapl_bus_id = 1;
}
diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index d3d851b014a3..bd87476ab481 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -891,7 +891,7 @@ static int octeon_cf_probe(struct platform_device *pdev)
of_node_put(dma_node);
return -EINVAL;
}
- cf_port->dma_base = (u64)devm_ioremap_nocache(&pdev->dev, res_dma->start,
+ cf_port->dma_base = (u64)devm_ioremap(&pdev->dev, res_dma->start,
resource_size(res_dma));
if (!cf_port->dma_base) {
of_node_put(dma_node);
@@ -909,7 +909,7 @@ static int octeon_cf_probe(struct platform_device *pdev)
if (!res_cs1)
return -EINVAL;
- cs1 = devm_ioremap_nocache(&pdev->dev, res_cs1->start,
+ cs1 = devm_ioremap(&pdev->dev, res_cs1->start,
resource_size(res_cs1));
if (!cs1)
return rv;
@@ -925,7 +925,7 @@ static int octeon_cf_probe(struct platform_device *pdev)
if (!res_cs0)
return -EINVAL;
- cs0 = devm_ioremap_nocache(&pdev->dev, res_cs0->start,
+ cs0 = devm_ioremap(&pdev->dev, res_cs0->start,
resource_size(res_cs0));
if (!cs0)
return rv;
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index deae466395de..479c4b29b856 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -140,7 +140,7 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
info->gpio_line = gpiod;
info->irq = irq;
- info->iobase = devm_ioremap_nocache(&pdev->dev, res->start,
+ info->iobase = devm_ioremap(&pdev->dev, res->start,
resource_size(res));
if (!info->iobase)
return -ENOMEM;
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 9239615d8a04..d55ee244d693 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -1280,7 +1280,7 @@ static void sata_fsl_host_intr(struct ata_port *ap)
i, ioread32(hcr_base + CC),
ioread32(hcr_base + CA));
}
- ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask);
+ ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask);
return;
} else if ((ap->qc_active & (1ULL << ATA_TAG_INTERNAL))) {
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 277f11909fc1..d7228f8e9297 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -2829,7 +2829,7 @@ static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp
}
if (work_done) {
- ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask);
+ ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask);
/* Update the software queue position index in hardware */
writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) |
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index f3e62f5528bd..eb9dc14e5147 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -984,7 +984,7 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
check_commands = 0;
check_commands &= ~(1 << pos);
}
- ata_qc_complete_multiple(ap, ap->qc_active ^ done_mask);
+ ata_qc_complete_multiple(ap, ata_qc_get_active(ap) ^ done_mask);
}
}
diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index b23d1e4bad33..17d47ad03ab7 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -31,12 +31,6 @@
#include "suni.h"
#include "eni.h"
-#if !defined(__i386__) && !defined(__x86_64__)
-#ifndef ioremap_nocache
-#define ioremap_nocache(X,Y) ioremap(X,Y)
-#endif
-#endif
-
/*
* TODO:
*
@@ -374,7 +368,7 @@ static int do_rx_dma(struct atm_vcc *vcc,struct sk_buff *skb,
here = (eni_vcc->descr+skip) & (eni_vcc->words-1);
dma[j++] = (here << MID_DMA_COUNT_SHIFT) | (vcc->vci
<< MID_DMA_VCI_SHIFT) | MID_DT_JK;
- j++;
+ dma[j++] = 0;
}
here = (eni_vcc->descr+size+skip) & (eni_vcc->words-1);
if (!eff) size += skip;
@@ -447,7 +441,7 @@ static int do_rx_dma(struct atm_vcc *vcc,struct sk_buff *skb,
if (size != eff) {
dma[j++] = (here << MID_DMA_COUNT_SHIFT) |
(vcc->vci << MID_DMA_VCI_SHIFT) | MID_DT_JK;
- j++;
+ dma[j++] = 0;
}
if (!j || j > 2*RX_DMA_BUF) {
printk(KERN_CRIT DEV_LABEL "!j or j too big!!!\n");
@@ -1725,7 +1719,7 @@ static int eni_do_init(struct atm_dev *dev)
}
printk(KERN_NOTICE DEV_LABEL "(itf %d): rev.%d,base=0x%lx,irq=%d,",
dev->number,pci_dev->revision,real_base,eni_dev->irq);
- if (!(base = ioremap_nocache(real_base,MAP_MAX_SIZE))) {
+ if (!(base = ioremap(real_base,MAP_MAX_SIZE))) {
printk("\n");
printk(KERN_ERR DEV_LABEL "(itf %d): can't set up page "
"mapping\n",dev->number);
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index aad00d2b28f5..cc87004d5e2d 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -912,6 +912,7 @@ static int fs_open(struct atm_vcc *atm_vcc)
}
if (!to) {
printk ("No more free channels for FS50..\n");
+ kfree(vcc);
return -EBUSY;
}
vcc->channo = dev->channo;
@@ -922,6 +923,7 @@ static int fs_open(struct atm_vcc *atm_vcc)
if (((DO_DIRECTION(rxtp) && dev->atm_vccs[vcc->channo])) ||
( DO_DIRECTION(txtp) && test_bit (vcc->channo, dev->tx_inuse))) {
printk ("Channel is in use for FS155.\n");
+ kfree(vcc);
return -EBUSY;
}
}
@@ -935,6 +937,7 @@ static int fs_open(struct atm_vcc *atm_vcc)
tc, sizeof (struct fs_transmit_config));
if (!tc) {
fs_dprintk (FS_DEBUG_OPEN, "fs: can't alloc transmit_config.\n");
+ kfree(vcc);
return -ENOMEM;
}
diff --git a/drivers/atm/fore200e.c b/drivers/atm/fore200e.c
index f1a500205313..8fbd36eb8941 100644
--- a/drivers/atm/fore200e.c
+++ b/drivers/atm/fore200e.c
@@ -1414,12 +1414,14 @@ fore200e_open(struct atm_vcc *vcc)
static void
fore200e_close(struct atm_vcc* vcc)
{
- struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
struct fore200e_vcc* fore200e_vcc;
+ struct fore200e* fore200e;
struct fore200e_vc_map* vc_map;
unsigned long flags;
ASSERT(vcc);
+ fore200e = FORE200E_DEV(vcc->dev);
+
ASSERT((vcc->vpi >= 0) && (vcc->vpi < 1<<FORE200E_VPI_BITS));
ASSERT((vcc->vci >= 0) && (vcc->vci < 1<<FORE200E_VCI_BITS));
@@ -1464,10 +1466,10 @@ fore200e_close(struct atm_vcc* vcc)
static int
fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
{
- struct fore200e* fore200e = FORE200E_DEV(vcc->dev);
- struct fore200e_vcc* fore200e_vcc = FORE200E_VCC(vcc);
+ struct fore200e* fore200e;
+ struct fore200e_vcc* fore200e_vcc;
struct fore200e_vc_map* vc_map;
- struct host_txq* txq = &fore200e->host_txq;
+ struct host_txq* txq;
struct host_txq_entry* entry;
struct tpd* tpd;
struct tpd_haddr tpd_haddr;
@@ -1480,9 +1482,18 @@ fore200e_send(struct atm_vcc *vcc, struct sk_buff *skb)
unsigned char* data;
unsigned long flags;
- ASSERT(vcc);
- ASSERT(fore200e);
- ASSERT(fore200e_vcc);
+ if (!vcc)
+ return -EINVAL;
+
+ fore200e = FORE200E_DEV(vcc->dev);
+ fore200e_vcc = FORE200E_VCC(vcc);
+
+ if (!fore200e)
+ return -EINVAL;
+
+ txq = &fore200e->host_txq;
+ if (!fore200e_vcc)
+ return -EINVAL;
if (!test_bit(ATM_VF_READY, &vcc->flags)) {
DPRINTK(1, "VC %d.%d.%d not ready for tx\n", vcc->itf, vcc->vpi, vcc->vpi);
diff --git a/drivers/auxdisplay/cfag12864bfb.c b/drivers/auxdisplay/cfag12864bfb.c
index 4074886b7bc8..2002291ab338 100644
--- a/drivers/auxdisplay/cfag12864bfb.c
+++ b/drivers/auxdisplay/cfag12864bfb.c
@@ -57,7 +57,7 @@ static int cfag12864bfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
return vm_map_pages_zero(vma, &pages, 1);
}
-static struct fb_ops cfag12864bfb_ops = {
+static const struct fb_ops cfag12864bfb_ops = {
.owner = THIS_MODULE,
.fb_read = fb_sys_read,
.fb_write = fb_sys_write,
diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index a2fcde582e2a..d951d54b26f5 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -228,7 +228,7 @@ static int ht16k33_mmap(struct fb_info *info, struct vm_area_struct *vma)
return vm_map_pages_zero(vma, &pages, 1);
}
-static struct fb_ops ht16k33_fb_ops = {
+static const struct fb_ops ht16k33_fb_ops = {
.owner = THIS_MODULE,
.fb_read = fb_sys_read,
.fb_write = fb_sys_write,
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index c3b3b5c0b0da..5f0bc74d2409 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -150,7 +150,7 @@ config DEBUG_TEST_DRIVER_REMOVE
config PM_QOS_KUNIT_TEST
bool "KUnit Test for PM QoS features"
- depends on KUNIT
+ depends on KUNIT=y
config HMEM_REPORTING
bool
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 1eb81f113786..6119e11a9f95 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -248,6 +248,16 @@ core_initcall(free_raw_capacity);
#endif
#if defined(CONFIG_ARM64) || defined(CONFIG_RISCV)
+/*
+ * This function returns the logic cpu number of the node.
+ * There are basically three kinds of return values:
+ * (1) logic cpu number which is > 0.
+ * (2) -ENODEV when the device tree(DT) node is valid and found in the DT but
+ * there is no possible logical CPU in the kernel to match. This happens
+ * when CONFIG_NR_CPUS is configure to be smaller than the number of
+ * CPU nodes in DT. We need to just ignore this case.
+ * (3) -1 if the node does not exist in the device tree
+ */
static int __init get_cpu_for_node(struct device_node *node)
{
struct device_node *cpu_node;
@@ -261,7 +271,8 @@ static int __init get_cpu_for_node(struct device_node *node)
if (cpu >= 0)
topology_parse_cpu_capacity(cpu_node, cpu);
else
- pr_crit("Unable to find CPU node for %pOF\n", cpu_node);
+ pr_info("CPU node for %pOF exist but the possible cpu range is :%*pbl\n",
+ cpu_node, cpumask_pr_args(cpu_possible_mask));
of_node_put(cpu_node);
return cpu;
@@ -286,9 +297,8 @@ static int __init parse_core(struct device_node *core, int package_id,
cpu_topology[cpu].package_id = package_id;
cpu_topology[cpu].core_id = core_id;
cpu_topology[cpu].thread_id = i;
- } else {
- pr_err("%pOF: Can't get CPU for thread\n",
- t);
+ } else if (cpu != -ENODEV) {
+ pr_err("%pOF: Can't get CPU for thread\n", t);
of_node_put(t);
return -EINVAL;
}
@@ -307,7 +317,7 @@ static int __init parse_core(struct device_node *core, int package_id,
cpu_topology[cpu].package_id = package_id;
cpu_topology[cpu].core_id = core_id;
- } else if (leaf) {
+ } else if (leaf && cpu != -ENODEV) {
pr_err("%pOF: Can't get CPU for leaf core\n", core);
return -EINVAL;
}
diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c
index 20736aaa0e69..f7bd0f4db13d 100644
--- a/drivers/base/attribute_container.c
+++ b/drivers/base/attribute_container.c
@@ -236,6 +236,109 @@ attribute_container_remove_device(struct device *dev,
mutex_unlock(&attribute_container_mutex);
}
+static int
+do_attribute_container_device_trigger_safe(struct device *dev,
+ struct attribute_container *cont,
+ int (*fn)(struct attribute_container *,
+ struct device *, struct device *),
+ int (*undo)(struct attribute_container *,
+ struct device *, struct device *))
+{
+ int ret;
+ struct internal_container *ic, *failed;
+ struct klist_iter iter;
+
+ if (attribute_container_no_classdevs(cont))
+ return fn(cont, dev, NULL);
+
+ klist_for_each_entry(ic, &cont->containers, node, &iter) {
+ if (dev == ic->classdev.parent) {
+ ret = fn(cont, dev, &ic->classdev);
+ if (ret) {
+ failed = ic;
+ klist_iter_exit(&iter);
+ goto fail;
+ }
+ }
+ }
+ return 0;
+
+fail:
+ if (!undo)
+ return ret;
+
+ /* Attempt to undo the work partially done. */
+ klist_for_each_entry(ic, &cont->containers, node, &iter) {
+ if (ic == failed) {
+ klist_iter_exit(&iter);
+ break;
+ }
+ if (dev == ic->classdev.parent)
+ undo(cont, dev, &ic->classdev);
+ }
+ return ret;
+}
+
+/**
+ * attribute_container_device_trigger_safe - execute a trigger for each
+ * matching classdev or fail all of them.
+ *
+ * @dev: The generic device to run the trigger for
+ * @fn the function to execute for each classdev.
+ * @undo A function to undo the work previously done in case of error
+ *
+ * This function is a safe version of
+ * attribute_container_device_trigger. It stops on the first error and
+ * undo the partial work that has been done, on previous classdev. It
+ * is guaranteed that either they all succeeded, or none of them
+ * succeeded.
+ */
+int
+attribute_container_device_trigger_safe(struct device *dev,
+ int (*fn)(struct attribute_container *,
+ struct device *,
+ struct device *),
+ int (*undo)(struct attribute_container *,
+ struct device *,
+ struct device *))
+{
+ struct attribute_container *cont, *failed = NULL;
+ int ret = 0;
+
+ mutex_lock(&attribute_container_mutex);
+
+ list_for_each_entry(cont, &attribute_container_list, node) {
+
+ if (!cont->match(cont, dev))
+ continue;
+
+ ret = do_attribute_container_device_trigger_safe(dev, cont,
+ fn, undo);
+ if (ret) {
+ failed = cont;
+ break;
+ }
+ }
+
+ if (ret && !WARN_ON(!undo)) {
+ list_for_each_entry(cont, &attribute_container_list, node) {
+
+ if (failed == cont)
+ break;
+
+ if (!cont->match(cont, dev))
+ continue;
+
+ do_attribute_container_device_trigger_safe(dev, cont,
+ undo, NULL);
+ }
+ }
+
+ mutex_unlock(&attribute_container_mutex);
+ return ret;
+
+}
+
/**
* attribute_container_device_trigger - execute a trigger for each matching classdev
*
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 0d32544b6f91..40fb069a8a7e 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -1,4 +1,15 @@
/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
+ * Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
+ * Copyright (c) 2008-2012 Novell Inc.
+ * Copyright (c) 2012-2019 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+ * Copyright (c) 2012-2019 Linux Foundation
+ *
+ * Core driver model functions and structures that should not be
+ * shared outside of the drivers/base/ directory.
+ *
+ */
#include <linux/notifier.h>
/**
@@ -175,3 +186,11 @@ extern void device_links_unbind_consumers(struct device *dev);
/* device pm support */
void device_pm_move_to_tail(struct device *dev);
+
+#ifdef CONFIG_DEVTMPFS
+int devtmpfs_create_node(struct device *dev);
+int devtmpfs_delete_node(struct device *dev);
+#else
+static inline int devtmpfs_create_node(struct device *dev) { return 0; }
+static inline int devtmpfs_delete_node(struct device *dev) { return 0; }
+#endif
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index a1d1e8256324..886e9054999a 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -9,6 +9,7 @@
*/
#include <linux/async.h>
+#include <linux/device/bus.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/errno.h>
diff --git a/drivers/base/class.c b/drivers/base/class.c
index d8a6a5864c2e..bcd410e6d70a 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -8,6 +8,7 @@
* Copyright (c) 2003-2004 IBM Corp.
*/
+#include <linux/device/class.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/init.h>
diff --git a/drivers/base/component.c b/drivers/base/component.c
index 532a3a5d8f63..c7879f5ae2fb 100644
--- a/drivers/base/component.c
+++ b/drivers/base/component.c
@@ -11,7 +11,6 @@
#include <linux/device.h>
#include <linux/kref.h>
#include <linux/list.h>
-#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/debugfs.h>
@@ -102,11 +101,11 @@ static int component_devices_show(struct seq_file *s, void *data)
seq_printf(s, "%-40s %20s\n", "device name", "status");
seq_puts(s, "-------------------------------------------------------------\n");
for (i = 0; i < match->num; i++) {
- struct device *d = (struct device *)match->compare[i].data;
+ struct component *component = match->compare[i].component;
- seq_printf(s, "%-40s %20s\n", dev_name(d),
- match->compare[i].component ?
- "registered" : "not registered");
+ seq_printf(s, "%-40s %20s\n",
+ component ? dev_name(component->dev) : "(unknown)",
+ component ? (component->bound ? "bound" : "not bound") : "not registered");
}
mutex_unlock(&component_mutex);
@@ -775,5 +774,3 @@ void component_del(struct device *dev, const struct component_ops *ops)
kfree(component);
}
EXPORT_SYMBOL_GPL(component_del);
-
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index d811e60610d3..b25bcab2a26b 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -516,7 +516,10 @@ static int really_probe(struct device *dev, struct device_driver *drv)
atomic_inc(&probe_count);
pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
drv->bus->name, __func__, drv->name, dev_name(dev));
- WARN_ON(!list_empty(&dev->devres_head));
+ if (!list_empty(&dev->devres_head)) {
+ dev_crit(dev, "Resources present before probing\n");
+ return -EBUSY;
+ }
re_probe:
dev->driver = drv;
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 6cdbf1531238..5995c437cbdf 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -30,11 +30,7 @@
static struct task_struct *thread;
-#if defined CONFIG_DEVTMPFS_MOUNT
-static int mount_dev = 1;
-#else
-static int mount_dev;
-#endif
+static int __initdata mount_dev = IS_ENABLED(CONFIG_DEVTMPFS_MOUNT);
static DEFINE_SPINLOCK(req_lock);
@@ -93,6 +89,23 @@ static inline int is_blockdev(struct device *dev)
static inline int is_blockdev(struct device *dev) { return 0; }
#endif
+static int devtmpfs_submit_req(struct req *req, const char *tmp)
+{
+ init_completion(&req->done);
+
+ spin_lock(&req_lock);
+ req->next = requests;
+ requests = req;
+ spin_unlock(&req_lock);
+
+ wake_up_process(thread);
+ wait_for_completion(&req->done);
+
+ kfree(tmp);
+
+ return req->err;
+}
+
int devtmpfs_create_node(struct device *dev)
{
const char *tmp = NULL;
@@ -117,19 +130,7 @@ int devtmpfs_create_node(struct device *dev)
req.dev = dev;
- init_completion(&req.done);
-
- spin_lock(&req_lock);
- req.next = requests;
- requests = &req;
- spin_unlock(&req_lock);
-
- wake_up_process(thread);
- wait_for_completion(&req.done);
-
- kfree(tmp);
-
- return req.err;
+ return devtmpfs_submit_req(&req, tmp);
}
int devtmpfs_delete_node(struct device *dev)
@@ -147,18 +148,7 @@ int devtmpfs_delete_node(struct device *dev)
req.mode = 0;
req.dev = dev;
- init_completion(&req.done);
-
- spin_lock(&req_lock);
- req.next = requests;
- requests = &req;
- spin_unlock(&req_lock);
-
- wake_up_process(thread);
- wait_for_completion(&req.done);
-
- kfree(tmp);
- return req.err;
+ return devtmpfs_submit_req(&req, tmp);
}
static int dev_mkdir(const char *name, umode_t mode)
@@ -359,7 +349,7 @@ static int handle_remove(const char *nodename, struct device *dev)
* If configured, or requested by the commandline, devtmpfs will be
* auto-mounted after the kernel mounted the root filesystem.
*/
-int devtmpfs_mount(void)
+int __init devtmpfs_mount(void)
{
int err;
@@ -388,18 +378,30 @@ static int handle(const char *name, umode_t mode, kuid_t uid, kgid_t gid,
return handle_remove(name, dev);
}
-static int devtmpfsd(void *p)
+static int devtmpfs_setup(void *p)
{
- int *err = p;
- *err = ksys_unshare(CLONE_NEWNS);
- if (*err)
+ int err;
+
+ err = ksys_unshare(CLONE_NEWNS);
+ if (err)
goto out;
- *err = do_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, NULL);
- if (*err)
+ err = do_mount("devtmpfs", "/", "devtmpfs", MS_SILENT, NULL);
+ if (err)
goto out;
ksys_chdir("/.."); /* will traverse into overmounted root */
ksys_chroot(".");
+out:
+ *(int *)p = err;
complete(&setup_done);
+ return err;
+}
+
+static int devtmpfsd(void *p)
+{
+ int err = devtmpfs_setup(p);
+
+ if (err)
+ return err;
while (1) {
spin_lock(&req_lock);
while (requests) {
@@ -420,9 +422,6 @@ static int devtmpfsd(void *p)
schedule();
}
return 0;
-out:
- complete(&setup_done);
- return *err;
}
/*
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 4e5ca632f35e..57c68769e157 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -8,6 +8,7 @@
* Copyright (c) 2007 Novell Inc.
*/
+#include <linux/device/driver.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/errno.h>
diff --git a/drivers/base/firmware_loader/builtin/Makefile b/drivers/base/firmware_loader/builtin/Makefile
index 4a66888e7253..5fa7ce3745a0 100644
--- a/drivers/base/firmware_loader/builtin/Makefile
+++ b/drivers/base/firmware_loader/builtin/Makefile
@@ -17,7 +17,7 @@ PROGBITS = $(if $(CONFIG_ARM),%,@)progbits
filechk_fwbin = \
echo "/* Generated by $(src)/Makefile */" ;\
echo " .section .rodata" ;\
- echo " .p2align $(ASM_ALIGN)" ;\
+ echo " .p2align 4" ;\
echo "_fw_$(FWSTR)_bin:" ;\
echo " .incbin \"$(fwdir)/$(FWNAME)\"" ;\
echo "_fw_end:" ;\
diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c
index 62ee90b4db56..8704e1bae175 100644
--- a/drivers/base/firmware_loader/fallback.c
+++ b/drivers/base/firmware_loader/fallback.c
@@ -606,7 +606,7 @@ static bool fw_run_sysfs_fallback(enum fw_opt opt_flags)
return false;
}
- if ((opt_flags & FW_OPT_NOFALLBACK))
+ if ((opt_flags & FW_OPT_NOFALLBACK_SYSFS))
return false;
/* Also permit LSMs and IMA to fail firmware sysfs fallback */
@@ -630,10 +630,11 @@ static bool fw_run_sysfs_fallback(enum fw_opt opt_flags)
* interface. Userspace is in charge of loading the firmware through the sysfs
* loading interface. This sysfs fallback mechanism may be disabled completely
* on a system by setting the proc sysctl value ignore_sysfs_fallback to true.
- * If this false we check if the internal API caller set the @FW_OPT_NOFALLBACK
- * flag, if so it would also disable the fallback mechanism. A system may want
- * to enfoce the sysfs fallback mechanism at all times, it can do this by
- * setting ignore_sysfs_fallback to false and force_sysfs_fallback to true.
+ * If this is false we check if the internal API caller set the
+ * @FW_OPT_NOFALLBACK_SYSFS flag, if so it would also disable the fallback
+ * mechanism. A system may want to enforce the sysfs fallback mechanism at all
+ * times, it can do this by setting ignore_sysfs_fallback to false and
+ * force_sysfs_fallback to true.
* Enabling force_sysfs_fallback is functionally equivalent to build a kernel
* with CONFIG_FW_LOADER_USER_HELPER_FALLBACK.
**/
diff --git a/drivers/base/firmware_loader/firmware.h b/drivers/base/firmware_loader/firmware.h
index 7ecd590e67fe..8656e5239a80 100644
--- a/drivers/base/firmware_loader/firmware.h
+++ b/drivers/base/firmware_loader/firmware.h
@@ -27,16 +27,16 @@
* firmware file lookup on storage is avoided. Used for calls where the
* file may be too big, or where the driver takes charge of its own
* firmware caching mechanism.
- * @FW_OPT_NOFALLBACK: Disable the fallback mechanism. Takes precedence over
- * &FW_OPT_UEVENT and &FW_OPT_USERHELPER.
+ * @FW_OPT_NOFALLBACK_SYSFS: Disable the sysfs fallback mechanism. Takes
+ * precedence over &FW_OPT_UEVENT and &FW_OPT_USERHELPER.
*/
enum fw_opt {
- FW_OPT_UEVENT = BIT(0),
- FW_OPT_NOWAIT = BIT(1),
- FW_OPT_USERHELPER = BIT(2),
- FW_OPT_NO_WARN = BIT(3),
- FW_OPT_NOCACHE = BIT(4),
- FW_OPT_NOFALLBACK = BIT(5),
+ FW_OPT_UEVENT = BIT(0),
+ FW_OPT_NOWAIT = BIT(1),
+ FW_OPT_USERHELPER = BIT(2),
+ FW_OPT_NO_WARN = BIT(3),
+ FW_OPT_NOCACHE = BIT(4),
+ FW_OPT_NOFALLBACK_SYSFS = BIT(5),
};
enum fw_status {
diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index 249add8c5e05..57133a9dad09 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -877,7 +877,7 @@ int request_firmware_direct(const struct firmware **firmware_p,
__module_get(THIS_MODULE);
ret = _request_firmware(firmware_p, name, device, NULL, 0,
FW_OPT_UEVENT | FW_OPT_NO_WARN |
- FW_OPT_NOFALLBACK);
+ FW_OPT_NOFALLBACK_SYSFS);
module_put(THIS_MODULE);
return ret;
}
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index cf6b6b722e5c..7fa654f1288b 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -27,6 +27,7 @@
#include <linux/limits.h>
#include <linux/property.h>
#include <linux/kmemleak.h>
+#include <linux/types.h>
#include "base.h"
#include "power/power.h"
@@ -48,7 +49,7 @@ EXPORT_SYMBOL_GPL(platform_bus);
struct resource *platform_get_resource(struct platform_device *dev,
unsigned int type, unsigned int num)
{
- int i;
+ u32 i;
for (i = 0; i < dev->num_resources; i++) {
struct resource *r = &dev->resource[i];
@@ -255,7 +256,7 @@ struct resource *platform_get_resource_byname(struct platform_device *dev,
unsigned int type,
const char *name)
{
- int i;
+ u32 i;
for (i = 0; i < dev->num_resources; i++) {
struct resource *r = &dev->resource[i];
@@ -501,7 +502,8 @@ EXPORT_SYMBOL_GPL(platform_device_add_properties);
*/
int platform_device_add(struct platform_device *pdev)
{
- int i, ret;
+ u32 i;
+ int ret;
if (!pdev)
return -EINVAL;
@@ -569,7 +571,7 @@ int platform_device_add(struct platform_device *pdev)
pdev->id = PLATFORM_DEVID_AUTO;
}
- while (--i >= 0) {
+ while (i--) {
struct resource *r = &pdev->resource[i];
if (r->parent)
release_resource(r);
@@ -590,7 +592,7 @@ EXPORT_SYMBOL_GPL(platform_device_add);
*/
void platform_device_del(struct platform_device *pdev)
{
- int i;
+ u32 i;
if (!IS_ERR_OR_NULL(pdev)) {
device_del(&pdev->dev);
diff --git a/drivers/base/power/qos-test.c b/drivers/base/power/qos-test.c
index 3115db08d56b..79fc6c4418da 100644
--- a/drivers/base/power/qos-test.c
+++ b/drivers/base/power/qos-test.c
@@ -114,4 +114,4 @@ static struct kunit_suite pm_qos_test_module = {
.name = "qos-kunit-test",
.test_cases = pm_qos_test_cases,
};
-kunit_test_suite(pm_qos_test_module);
+kunit_test_suites(&pm_qos_test_module);
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 48616f358854..16134a69bf6f 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1006,8 +1006,10 @@ int __pm_runtime_idle(struct device *dev, int rpmflags)
int retval;
if (rpmflags & RPM_GET_PUT) {
- if (!atomic_dec_and_test(&dev->power.usage_count))
+ if (!atomic_dec_and_test(&dev->power.usage_count)) {
+ trace_rpm_usage_rcuidle(dev, rpmflags);
return 0;
+ }
}
might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
@@ -1038,8 +1040,10 @@ int __pm_runtime_suspend(struct device *dev, int rpmflags)
int retval;
if (rpmflags & RPM_GET_PUT) {
- if (!atomic_dec_and_test(&dev->power.usage_count))
+ if (!atomic_dec_and_test(&dev->power.usage_count)) {
+ trace_rpm_usage_rcuidle(dev, rpmflags);
return 0;
+ }
}
might_sleep_if(!(rpmflags & RPM_ASYNC) && !dev->power.irq_safe);
@@ -1101,6 +1105,7 @@ int pm_runtime_get_if_in_use(struct device *dev)
retval = dev->power.disable_depth > 0 ? -EINVAL :
dev->power.runtime_status == RPM_ACTIVE
&& atomic_inc_not_zero(&dev->power.usage_count);
+ trace_rpm_usage_rcuidle(dev, 0);
spin_unlock_irqrestore(&dev->power.lock, flags);
return retval;
}
@@ -1434,6 +1439,8 @@ void pm_runtime_allow(struct device *dev)
dev->power.runtime_auto = true;
if (atomic_dec_and_test(&dev->power.usage_count))
rpm_idle(dev, RPM_AUTO | RPM_ASYNC);
+ else
+ trace_rpm_usage_rcuidle(dev, RPM_AUTO | RPM_ASYNC);
out:
spin_unlock_irq(&dev->power.lock);
@@ -1501,6 +1508,8 @@ static void update_autosuspend(struct device *dev, int old_delay, int old_use)
if (!old_use || old_delay >= 0) {
atomic_inc(&dev->power.usage_count);
rpm_resume(dev, 0);
+ } else {
+ trace_rpm_usage_rcuidle(dev, 0);
}
}
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 70a9edb5f525..27f3e60608e5 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -1125,6 +1125,9 @@ static void *wakeup_sources_stats_seq_next(struct seq_file *m,
break;
}
+ if (!next_ws)
+ print_wakeup_source_stats(m, &deleted_ws);
+
return next_ws;
}
diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c
index ac9b31c57967..008f8da69d97 100644
--- a/drivers/base/regmap/regmap-i2c.c
+++ b/drivers/base/regmap/regmap-i2c.c
@@ -43,7 +43,7 @@ static int regmap_smbus_byte_reg_write(void *context, unsigned int reg,
return i2c_smbus_write_byte_data(i2c, reg, val);
}
-static struct regmap_bus regmap_smbus_byte = {
+static const struct regmap_bus regmap_smbus_byte = {
.reg_write = regmap_smbus_byte_reg_write,
.reg_read = regmap_smbus_byte_reg_read,
};
@@ -79,7 +79,7 @@ static int regmap_smbus_word_reg_write(void *context, unsigned int reg,
return i2c_smbus_write_word_data(i2c, reg, val);
}
-static struct regmap_bus regmap_smbus_word = {
+static const struct regmap_bus regmap_smbus_word = {
.reg_write = regmap_smbus_word_reg_write,
.reg_read = regmap_smbus_word_reg_read,
};
@@ -115,7 +115,7 @@ static int regmap_smbus_word_write_swapped(void *context, unsigned int reg,
return i2c_smbus_write_word_swapped(i2c, reg, val);
}
-static struct regmap_bus regmap_smbus_word_swapped = {
+static const struct regmap_bus regmap_smbus_word_swapped = {
.reg_write = regmap_smbus_word_write_swapped,
.reg_read = regmap_smbus_word_read_swapped,
};
@@ -197,7 +197,7 @@ static int regmap_i2c_read(void *context,
return -EIO;
}
-static struct regmap_bus regmap_i2c = {
+static const struct regmap_bus regmap_i2c = {
.write = regmap_i2c_write,
.gather_write = regmap_i2c_gather_write,
.read = regmap_i2c_read,
@@ -239,7 +239,7 @@ static int regmap_i2c_smbus_i2c_read(void *context, const void *reg,
return -EIO;
}
-static struct regmap_bus regmap_i2c_smbus_i2c_block = {
+static const struct regmap_bus regmap_i2c_smbus_i2c_block = {
.write = regmap_i2c_smbus_i2c_write,
.read = regmap_i2c_smbus_i2c_read,
.max_raw_read = I2C_SMBUS_BLOCK_MAX,
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 19f57ccfbe1d..59f911e57719 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1488,11 +1488,18 @@ static int _regmap_raw_write_impl(struct regmap *map, unsigned int reg,
WARN_ON(!map->bus);
- /* Check for unwritable registers before we start */
- for (i = 0; i < val_len / map->format.val_bytes; i++)
- if (!regmap_writeable(map,
- reg + regmap_get_offset(map, i)))
- return -EINVAL;
+ /* Check for unwritable or noinc registers in range
+ * before we start
+ */
+ if (!regmap_writeable_noinc(map, reg)) {
+ for (i = 0; i < val_len / map->format.val_bytes; i++) {
+ unsigned int element =
+ reg + regmap_get_offset(map, i);
+ if (!regmap_writeable(map, element) ||
+ regmap_writeable_noinc(map, element))
+ return -EINVAL;
+ }
+ }
if (!map->cache_bypass && map->format.parse_val) {
unsigned int ival;
diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index d8d0dc0ca5ac..0b081dee1e95 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -108,10 +108,7 @@ static const void *property_get_pointer(const struct property_entry *prop)
if (!prop->length)
return NULL;
- if (prop->is_array)
- return prop->pointer;
-
- return &prop->value;
+ return prop->is_inline ? &prop->value : prop->pointer;
}
static const void *property_entry_find(const struct property_entry *props,
@@ -201,92 +198,91 @@ static int property_entry_read_string_array(const struct property_entry *props,
static void property_entry_free_data(const struct property_entry *p)
{
- const void *pointer = property_get_pointer(p);
const char * const *src_str;
size_t i, nval;
- if (p->is_array) {
- if (p->type == DEV_PROP_STRING && p->pointer) {
- src_str = p->pointer;
- nval = p->length / sizeof(const char *);
- for (i = 0; i < nval; i++)
- kfree(src_str[i]);
- }
- kfree(pointer);
- } else if (p->type == DEV_PROP_STRING) {
- kfree(p->value.str);
+ if (p->type == DEV_PROP_STRING) {
+ src_str = property_get_pointer(p);
+ nval = p->length / sizeof(*src_str);
+ for (i = 0; i < nval; i++)
+ kfree(src_str[i]);
}
+
+ if (!p->is_inline)
+ kfree(p->pointer);
+
kfree(p->name);
}
-static const char * const *
-property_copy_string_array(const struct property_entry *src)
+static bool property_copy_string_array(const char **dst_ptr,
+ const char * const *src_ptr,
+ size_t nval)
{
- const char **d;
- const char * const *src_str = src->pointer;
- size_t nval = src->length / sizeof(*d);
int i;
- d = kcalloc(nval, sizeof(*d), GFP_KERNEL);
- if (!d)
- return NULL;
-
for (i = 0; i < nval; i++) {
- d[i] = kstrdup(src_str[i], GFP_KERNEL);
- if (!d[i] && src_str[i]) {
+ dst_ptr[i] = kstrdup(src_ptr[i], GFP_KERNEL);
+ if (!dst_ptr[i] && src_ptr[i]) {
while (--i >= 0)
- kfree(d[i]);
- kfree(d);
- return NULL;
+ kfree(dst_ptr[i]);
+ return false;
}
}
- return d;
+ return true;
}
static int property_entry_copy_data(struct property_entry *dst,
const struct property_entry *src)
{
const void *pointer = property_get_pointer(src);
- const void *new;
-
- if (src->is_array) {
- if (!src->length)
- return -ENODATA;
-
- if (src->type == DEV_PROP_STRING) {
- new = property_copy_string_array(src);
- if (!new)
- return -ENOMEM;
- } else {
- new = kmemdup(pointer, src->length, GFP_KERNEL);
- if (!new)
- return -ENOMEM;
- }
+ void *dst_ptr;
+ size_t nval;
+
+ /*
+ * Properties with no data should not be marked as stored
+ * out of line.
+ */
+ if (!src->is_inline && !src->length)
+ return -ENODATA;
+
+ /*
+ * Reference properties are never stored inline as
+ * they are too big.
+ */
+ if (src->type == DEV_PROP_REF && src->is_inline)
+ return -EINVAL;
- dst->is_array = true;
- dst->pointer = new;
- } else if (src->type == DEV_PROP_STRING) {
- new = kstrdup(src->value.str, GFP_KERNEL);
- if (!new && src->value.str)
+ if (src->length <= sizeof(dst->value)) {
+ dst_ptr = &dst->value;
+ dst->is_inline = true;
+ } else {
+ dst_ptr = kmalloc(src->length, GFP_KERNEL);
+ if (!dst_ptr)
return -ENOMEM;
+ dst->pointer = dst_ptr;
+ }
- dst->value.str = new;
+ if (src->type == DEV_PROP_STRING) {
+ nval = src->length / sizeof(const char *);
+ if (!property_copy_string_array(dst_ptr, pointer, nval)) {
+ if (!dst->is_inline)
+ kfree(dst->pointer);
+ return -ENOMEM;
+ }
} else {
- dst->value = src->value;
+ memcpy(dst_ptr, pointer, src->length);
}
dst->length = src->length;
dst->type = src->type;
dst->name = kstrdup(src->name, GFP_KERNEL);
- if (!dst->name)
- goto out_free_data;
+ if (!dst->name) {
+ property_entry_free_data(dst);
+ return -ENOMEM;
+ }
return 0;
-
-out_free_data:
- property_entry_free_data(dst);
- return -ENOMEM;
}
/**
@@ -483,31 +479,49 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode,
struct fwnode_reference_args *args)
{
struct swnode *swnode = to_swnode(fwnode);
- const struct software_node_reference *ref;
+ const struct software_node_ref_args *ref_array;
+ const struct software_node_ref_args *ref;
const struct property_entry *prop;
struct fwnode_handle *refnode;
+ u32 nargs_prop_val;
+ int error;
int i;
- if (!swnode || !swnode->node->references)
+ if (!swnode)
return -ENOENT;
- for (ref = swnode->node->references; ref->name; ref++)
- if (!strcmp(ref->name, propname))
- break;
+ prop = property_entry_get(swnode->node->properties, propname);
+ if (!prop)
+ return -ENOENT;
+
+ if (prop->type != DEV_PROP_REF)
+ return -EINVAL;
- if (!ref->name || index > (ref->nrefs - 1))
+ /*
+ * We expect that references are never stored inline, even
+ * single ones, as they are too big.
+ */
+ if (prop->is_inline)
+ return -EINVAL;
+
+ if (index * sizeof(*ref) >= prop->length)
return -ENOENT;
- refnode = software_node_fwnode(ref->refs[index].node);
+ ref_array = prop->pointer;
+ ref = &ref_array[index];
+
+ refnode = software_node_fwnode(ref->node);
if (!refnode)
return -ENOENT;
if (nargs_prop) {
- prop = property_entry_get(swnode->node->properties, nargs_prop);
- if (!prop)
- return -EINVAL;
+ error = property_entry_read_int_array(swnode->node->properties,
+ nargs_prop, sizeof(u32),
+ &nargs_prop_val, 1);
+ if (error)
+ return error;
- nargs = prop->value.u32_data;
+ nargs = nargs_prop_val;
}
if (nargs > NR_FWNODE_REFERENCE_ARGS)
@@ -517,7 +531,7 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode,
args->nargs = nargs;
for (i = 0; i < nargs; i++)
- args->args[i] = ref->refs[index].args[i];
+ args->args[i] = ref->args[i];
return 0;
}
diff --git a/drivers/base/test/Kconfig b/drivers/base/test/Kconfig
index 86e85daa80bf..305c7751184a 100644
--- a/drivers/base/test/Kconfig
+++ b/drivers/base/test/Kconfig
@@ -8,3 +8,6 @@ config TEST_ASYNC_DRIVER_PROBE
The module name will be test_async_driver_probe.ko
If unsure say N.
+config KUNIT_DRIVER_PE_TEST
+ bool "KUnit Tests for property entry API"
+ depends on KUNIT=y
diff --git a/drivers/base/test/Makefile b/drivers/base/test/Makefile
index 0f1f7277a013..3ca56367c84b 100644
--- a/drivers/base/test/Makefile
+++ b/drivers/base/test/Makefile
@@ -1,2 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_TEST_ASYNC_DRIVER_PROBE) += test_async_driver_probe.o
+
+obj-$(CONFIG_KUNIT_DRIVER_PE_TEST) += property-entry-test.o
diff --git a/drivers/base/test/property-entry-test.c b/drivers/base/test/property-entry-test.c
new file mode 100644
index 000000000000..abe03315180f
--- /dev/null
+++ b/drivers/base/test/property-entry-test.c
@@ -0,0 +1,475 @@
+// SPDX-License-Identifier: GPL-2.0
+// Unit tests for property entries API
+//
+// Copyright 2019 Google LLC.
+
+#include <kunit/test.h>
+#include <linux/property.h>
+#include <linux/types.h>
+
+static void pe_test_uints(struct kunit *test)
+{
+ static const struct property_entry entries[] = {
+ PROPERTY_ENTRY_U8("prop-u8", 8),
+ PROPERTY_ENTRY_U16("prop-u16", 16),
+ PROPERTY_ENTRY_U32("prop-u32", 32),
+ PROPERTY_ENTRY_U64("prop-u64", 64),
+ { }
+ };
+
+ struct fwnode_handle *node;
+ u8 val_u8, array_u8[2];
+ u16 val_u16, array_u16[2];
+ u32 val_u32, array_u32[2];
+ u64 val_u64, array_u64[2];
+ int error;
+
+ node = fwnode_create_software_node(entries, NULL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node);
+
+ error = fwnode_property_read_u8(node, "prop-u8", &val_u8);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u8, 8);
+
+ error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u8[0], 8);
+
+ error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 2);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u8(node, "no-prop-u8", &val_u8);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u8_array(node, "no-prop-u8", array_u8, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u16(node, "prop-u16", &val_u16);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u16, 16);
+
+ error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u16[0], 16);
+
+ error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 2);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u16(node, "no-prop-u16", &val_u16);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u16_array(node, "no-prop-u16", array_u16, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u32(node, "prop-u32", &val_u32);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u32, 32);
+
+ error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u32[0], 32);
+
+ error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 2);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u32(node, "no-prop-u32", &val_u32);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u32_array(node, "no-prop-u32", array_u32, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u64(node, "prop-u64", &val_u64);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u64, 64);
+
+ error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u64[0], 64);
+
+ error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 2);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u64(node, "no-prop-u64", &val_u64);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u64_array(node, "no-prop-u64", array_u64, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ fwnode_remove_software_node(node);
+}
+
+static void pe_test_uint_arrays(struct kunit *test)
+{
+ static const u8 a_u8[16] = { 8, 9 };
+ static const u16 a_u16[16] = { 16, 17 };
+ static const u32 a_u32[16] = { 32, 33 };
+ static const u64 a_u64[16] = { 64, 65 };
+ static const struct property_entry entries[] = {
+ PROPERTY_ENTRY_U8_ARRAY("prop-u8", a_u8),
+ PROPERTY_ENTRY_U16_ARRAY("prop-u16", a_u16),
+ PROPERTY_ENTRY_U32_ARRAY("prop-u32", a_u32),
+ PROPERTY_ENTRY_U64_ARRAY("prop-u64", a_u64),
+ { }
+ };
+
+ struct fwnode_handle *node;
+ u8 val_u8, array_u8[32];
+ u16 val_u16, array_u16[32];
+ u32 val_u32, array_u32[32];
+ u64 val_u64, array_u64[32];
+ int error;
+
+ node = fwnode_create_software_node(entries, NULL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node);
+
+ error = fwnode_property_read_u8(node, "prop-u8", &val_u8);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u8, 8);
+
+ error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u8[0], 8);
+
+ error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 2);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u8[0], 8);
+ KUNIT_EXPECT_EQ(test, (int)array_u8[1], 9);
+
+ error = fwnode_property_read_u8_array(node, "prop-u8", array_u8, 17);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u8(node, "no-prop-u8", &val_u8);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u8_array(node, "no-prop-u8", array_u8, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u16(node, "prop-u16", &val_u16);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u16, 16);
+
+ error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u16[0], 16);
+
+ error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 2);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u16[0], 16);
+ KUNIT_EXPECT_EQ(test, (int)array_u16[1], 17);
+
+ error = fwnode_property_read_u16_array(node, "prop-u16", array_u16, 17);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u16(node, "no-prop-u16", &val_u16);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u16_array(node, "no-prop-u16", array_u16, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u32(node, "prop-u32", &val_u32);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u32, 32);
+
+ error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u32[0], 32);
+
+ error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 2);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u32[0], 32);
+ KUNIT_EXPECT_EQ(test, (int)array_u32[1], 33);
+
+ error = fwnode_property_read_u32_array(node, "prop-u32", array_u32, 17);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u32(node, "no-prop-u32", &val_u32);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u32_array(node, "no-prop-u32", array_u32, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u64(node, "prop-u64", &val_u64);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)val_u64, 64);
+
+ error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 1);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u64[0], 64);
+
+ error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 2);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_EQ(test, (int)array_u64[0], 64);
+ KUNIT_EXPECT_EQ(test, (int)array_u64[1], 65);
+
+ error = fwnode_property_read_u64_array(node, "prop-u64", array_u64, 17);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u64(node, "no-prop-u64", &val_u64);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_u64_array(node, "no-prop-u64", array_u64, 1);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ fwnode_remove_software_node(node);
+}
+
+static void pe_test_strings(struct kunit *test)
+{
+ static const char *strings[] = {
+ "string-a",
+ "string-b",
+ };
+
+ static const struct property_entry entries[] = {
+ PROPERTY_ENTRY_STRING("str", "single"),
+ PROPERTY_ENTRY_STRING("empty", ""),
+ PROPERTY_ENTRY_STRING_ARRAY("strs", strings),
+ { }
+ };
+
+ struct fwnode_handle *node;
+ const char *str;
+ const char *strs[10];
+ int error;
+
+ node = fwnode_create_software_node(entries, NULL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node);
+
+ error = fwnode_property_read_string(node, "str", &str);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_STREQ(test, str, "single");
+
+ error = fwnode_property_read_string_array(node, "str", strs, 1);
+ KUNIT_EXPECT_EQ(test, error, 1);
+ KUNIT_EXPECT_STREQ(test, strs[0], "single");
+
+ /* asking for more data returns what we have */
+ error = fwnode_property_read_string_array(node, "str", strs, 2);
+ KUNIT_EXPECT_EQ(test, error, 1);
+ KUNIT_EXPECT_STREQ(test, strs[0], "single");
+
+ error = fwnode_property_read_string(node, "no-str", &str);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_read_string_array(node, "no-str", strs, 1);
+ KUNIT_EXPECT_LT(test, error, 0);
+
+ error = fwnode_property_read_string(node, "empty", &str);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_STREQ(test, str, "");
+
+ error = fwnode_property_read_string_array(node, "strs", strs, 3);
+ KUNIT_EXPECT_EQ(test, error, 2);
+ KUNIT_EXPECT_STREQ(test, strs[0], "string-a");
+ KUNIT_EXPECT_STREQ(test, strs[1], "string-b");
+
+ error = fwnode_property_read_string_array(node, "strs", strs, 1);
+ KUNIT_EXPECT_EQ(test, error, 1);
+ KUNIT_EXPECT_STREQ(test, strs[0], "string-a");
+
+ /* NULL argument -> returns size */
+ error = fwnode_property_read_string_array(node, "strs", NULL, 0);
+ KUNIT_EXPECT_EQ(test, error, 2);
+
+ /* accessing array as single value */
+ error = fwnode_property_read_string(node, "strs", &str);
+ KUNIT_EXPECT_EQ(test, error, 0);
+ KUNIT_EXPECT_STREQ(test, str, "string-a");
+
+ fwnode_remove_software_node(node);
+}
+
+static void pe_test_bool(struct kunit *test)
+{
+ static const struct property_entry entries[] = {
+ PROPERTY_ENTRY_BOOL("prop"),
+ { }
+ };
+
+ struct fwnode_handle *node;
+
+ node = fwnode_create_software_node(entries, NULL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node);
+
+ KUNIT_EXPECT_TRUE(test, fwnode_property_read_bool(node, "prop"));
+ KUNIT_EXPECT_FALSE(test, fwnode_property_read_bool(node, "not-prop"));
+
+ fwnode_remove_software_node(node);
+}
+
+/* Verifies that small U8 array is stored inline when property is copied */
+static void pe_test_move_inline_u8(struct kunit *test)
+{
+ static const u8 u8_array_small[8] = { 1, 2, 3, 4 };
+ static const u8 u8_array_big[128] = { 5, 6, 7, 8 };
+ static const struct property_entry entries[] = {
+ PROPERTY_ENTRY_U8_ARRAY("small", u8_array_small),
+ PROPERTY_ENTRY_U8_ARRAY("big", u8_array_big),
+ { }
+ };
+
+ struct property_entry *copy;
+ const u8 *data_ptr;
+
+ copy = property_entries_dup(entries);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, copy);
+
+ KUNIT_EXPECT_TRUE(test, copy[0].is_inline);
+ data_ptr = (u8 *)&copy[0].value;
+ KUNIT_EXPECT_EQ(test, (int)data_ptr[0], 1);
+ KUNIT_EXPECT_EQ(test, (int)data_ptr[1], 2);
+
+ KUNIT_EXPECT_FALSE(test, copy[1].is_inline);
+ data_ptr = copy[1].pointer;
+ KUNIT_EXPECT_EQ(test, (int)data_ptr[0], 5);
+ KUNIT_EXPECT_EQ(test, (int)data_ptr[1], 6);
+
+ property_entries_free(copy);
+}
+
+/* Verifies that single string array is stored inline when property is copied */
+static void pe_test_move_inline_str(struct kunit *test)
+{
+ static char *str_array_small[] = { "a" };
+ static char *str_array_big[] = { "b", "c", "d", "e" };
+ static char *str_array_small_empty[] = { "" };
+ static struct property_entry entries[] = {
+ PROPERTY_ENTRY_STRING_ARRAY("small", str_array_small),
+ PROPERTY_ENTRY_STRING_ARRAY("big", str_array_big),
+ PROPERTY_ENTRY_STRING_ARRAY("small-empty", str_array_small_empty),
+ { }
+ };
+
+ struct property_entry *copy;
+ const char * const *data_ptr;
+
+ copy = property_entries_dup(entries);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, copy);
+
+ KUNIT_EXPECT_TRUE(test, copy[0].is_inline);
+ KUNIT_EXPECT_STREQ(test, copy[0].value.str[0], "a");
+
+ KUNIT_EXPECT_FALSE(test, copy[1].is_inline);
+ data_ptr = copy[1].pointer;
+ KUNIT_EXPECT_STREQ(test, data_ptr[0], "b");
+ KUNIT_EXPECT_STREQ(test, data_ptr[1], "c");
+
+ KUNIT_EXPECT_TRUE(test, copy[2].is_inline);
+ KUNIT_EXPECT_STREQ(test, copy[2].value.str[0], "");
+
+ property_entries_free(copy);
+}
+
+/* Handling of reference properties */
+static void pe_test_reference(struct kunit *test)
+{
+ static const struct software_node nodes[] = {
+ { .name = "1", },
+ { .name = "2", },
+ { }
+ };
+
+ static const struct software_node_ref_args refs[] = {
+ {
+ .node = &nodes[0],
+ .nargs = 0,
+ },
+ {
+ .node = &nodes[1],
+ .nargs = 2,
+ .args = { 3, 4 },
+ },
+ };
+
+ const struct property_entry entries[] = {
+ PROPERTY_ENTRY_REF("ref-1", &nodes[0]),
+ PROPERTY_ENTRY_REF("ref-2", &nodes[1], 1, 2),
+ PROPERTY_ENTRY_REF_ARRAY("ref-3", refs),
+ { }
+ };
+
+ struct fwnode_handle *node;
+ struct fwnode_reference_args ref;
+ int error;
+
+ error = software_node_register_nodes(nodes);
+ KUNIT_ASSERT_EQ(test, error, 0);
+
+ node = fwnode_create_software_node(entries, NULL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, node);
+
+ error = fwnode_property_get_reference_args(node, "ref-1", NULL,
+ 0, 0, &ref);
+ KUNIT_ASSERT_EQ(test, error, 0);
+ KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[0]);
+ KUNIT_EXPECT_EQ(test, ref.nargs, 0U);
+
+ /* wrong index */
+ error = fwnode_property_get_reference_args(node, "ref-1", NULL,
+ 0, 1, &ref);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ error = fwnode_property_get_reference_args(node, "ref-2", NULL,
+ 1, 0, &ref);
+ KUNIT_ASSERT_EQ(test, error, 0);
+ KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]);
+ KUNIT_EXPECT_EQ(test, ref.nargs, 1U);
+ KUNIT_EXPECT_EQ(test, ref.args[0], 1LLU);
+
+ /* asking for more args, padded with zero data */
+ error = fwnode_property_get_reference_args(node, "ref-2", NULL,
+ 3, 0, &ref);
+ KUNIT_ASSERT_EQ(test, error, 0);
+ KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]);
+ KUNIT_EXPECT_EQ(test, ref.nargs, 3U);
+ KUNIT_EXPECT_EQ(test, ref.args[0], 1LLU);
+ KUNIT_EXPECT_EQ(test, ref.args[1], 2LLU);
+ KUNIT_EXPECT_EQ(test, ref.args[2], 0LLU);
+
+ /* wrong index */
+ error = fwnode_property_get_reference_args(node, "ref-2", NULL,
+ 2, 1, &ref);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ /* array of references */
+ error = fwnode_property_get_reference_args(node, "ref-3", NULL,
+ 0, 0, &ref);
+ KUNIT_ASSERT_EQ(test, error, 0);
+ KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[0]);
+ KUNIT_EXPECT_EQ(test, ref.nargs, 0U);
+
+ /* second reference in the array */
+ error = fwnode_property_get_reference_args(node, "ref-3", NULL,
+ 2, 1, &ref);
+ KUNIT_ASSERT_EQ(test, error, 0);
+ KUNIT_EXPECT_PTR_EQ(test, to_software_node(ref.fwnode), &nodes[1]);
+ KUNIT_EXPECT_EQ(test, ref.nargs, 2U);
+ KUNIT_EXPECT_EQ(test, ref.args[0], 3LLU);
+ KUNIT_EXPECT_EQ(test, ref.args[1], 4LLU);
+
+ /* wrong index */
+ error = fwnode_property_get_reference_args(node, "ref-1", NULL,
+ 0, 2, &ref);
+ KUNIT_EXPECT_NE(test, error, 0);
+
+ fwnode_remove_software_node(node);
+ software_node_unregister_nodes(nodes);
+}
+
+static struct kunit_case property_entry_test_cases[] = {
+ KUNIT_CASE(pe_test_uints),
+ KUNIT_CASE(pe_test_uint_arrays),
+ KUNIT_CASE(pe_test_strings),
+ KUNIT_CASE(pe_test_bool),
+ KUNIT_CASE(pe_test_move_inline_u8),
+ KUNIT_CASE(pe_test_move_inline_str),
+ KUNIT_CASE(pe_test_reference),
+ { }
+};
+
+static struct kunit_suite property_entry_test_suite = {
+ .name = "property-entry",
+ .test_cases = property_entry_test_cases,
+};
+
+kunit_test_suite(property_entry_test_suite);
diff --git a/drivers/base/test/test_async_driver_probe.c b/drivers/base/test/test_async_driver_probe.c
index f4b1d8e54daf..3bb7beb127a9 100644
--- a/drivers/base/test/test_async_driver_probe.c
+++ b/drivers/base/test/test_async_driver_probe.c
@@ -44,7 +44,8 @@ static int test_probe(struct platform_device *pdev)
* performing an async init on that node.
*/
if (dev->driver->probe_type == PROBE_PREFER_ASYNCHRONOUS) {
- if (dev_to_node(dev) != numa_node_id()) {
+ if (IS_ENABLED(CONFIG_NUMA) &&
+ dev_to_node(dev) != numa_node_id()) {
dev_warn(dev, "NUMA node mismatch %d != %d\n",
dev_to_node(dev), numa_node_id());
atomic_inc(&warnings);
diff --git a/drivers/base/transport_class.c b/drivers/base/transport_class.c
index 5ed86ded6e6b..ccc86206e508 100644
--- a/drivers/base/transport_class.c
+++ b/drivers/base/transport_class.c
@@ -30,6 +30,10 @@
#include <linux/attribute_container.h>
#include <linux/transport_class.h>
+static int transport_remove_classdev(struct attribute_container *cont,
+ struct device *dev,
+ struct device *classdev);
+
/**
* transport_class_register - register an initial transport class
*
@@ -172,10 +176,11 @@ static int transport_add_class_device(struct attribute_container *cont,
* routine is simply a trigger point used to add the device to the
* system and register attributes for it.
*/
-
-void transport_add_device(struct device *dev)
+int transport_add_device(struct device *dev)
{
- attribute_container_device_trigger(dev, transport_add_class_device);
+ return attribute_container_device_trigger_safe(dev,
+ transport_add_class_device,
+ transport_remove_classdev);
}
EXPORT_SYMBOL_GPL(transport_add_device);
diff --git a/drivers/bcma/driver_chipcommon_b.c b/drivers/bcma/driver_chipcommon_b.c
index 57f10b58b47c..c153c96a6145 100644
--- a/drivers/bcma/driver_chipcommon_b.c
+++ b/drivers/bcma/driver_chipcommon_b.c
@@ -48,7 +48,7 @@ int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb)
return 0;
ccb->setup_done = 1;
- ccb->mii = ioremap_nocache(ccb->core->addr_s[1], BCMA_CORE_SIZE);
+ ccb->mii = ioremap(ccb->core->addr_s[1], BCMA_CORE_SIZE);
if (!ccb->mii)
return -ENOMEM;
diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c
index c42cec7c7ecc..88a93c266c19 100644
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -115,7 +115,7 @@ static int bcma_extpci_read_config(struct bcma_drv_pci *pc, unsigned int dev,
if (unlikely(!addr))
goto out;
err = -ENOMEM;
- mmio = ioremap_nocache(addr, sizeof(val));
+ mmio = ioremap(addr, sizeof(val));
if (!mmio)
goto out;
@@ -180,7 +180,7 @@ static int bcma_extpci_write_config(struct bcma_drv_pci *pc, unsigned int dev,
if (unlikely(!addr))
goto out;
err = -ENOMEM;
- mmio = ioremap_nocache(addr, sizeof(val));
+ mmio = ioremap(addr, sizeof(val));
if (!mmio)
goto out;
@@ -515,7 +515,7 @@ void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
/* Ok, ready to run, register it to the system.
* The following needs change, if we want to port hostmode
* to non-MIPS platform. */
- io_map_base = (unsigned long)ioremap_nocache(pc_host->mem_resource.start,
+ io_map_base = (unsigned long)ioremap(pc_host->mem_resource.start,
resource_size(&pc_host->mem_resource));
pc_host->pci_controller.io_map_base = io_map_base;
set_io_port_base(pc_host->pci_controller.io_map_base);
diff --git a/drivers/bcma/host_soc.c b/drivers/bcma/host_soc.c
index c8073b509a2b..90d5bdc12e03 100644
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
@@ -172,7 +172,7 @@ int __init bcma_host_soc_register(struct bcma_soc *soc)
/* iomap only first core. We have to read some register on this core
* to scan the bus.
*/
- bus->mmio = ioremap_nocache(BCMA_ADDR_BASE, BCMA_CORE_SIZE * 1);
+ bus->mmio = ioremap(BCMA_ADDR_BASE, BCMA_CORE_SIZE * 1);
if (!bus->mmio)
return -ENOMEM;
diff --git a/drivers/bcma/scan.c b/drivers/bcma/scan.c
index 4a2d1b235fb5..1a942f734188 100644
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -219,7 +219,7 @@ static s32 bcma_erom_get_mst_port(struct bcma_bus *bus, u32 __iomem **eromptr)
static u32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr,
u32 type, u8 port)
{
- u32 addrl, addrh, sizel, sizeh = 0;
+ u32 addrl, addrh, sizeh = 0;
u32 size;
u32 ent = bcma_erom_get_ent(bus, eromptr);
@@ -239,12 +239,9 @@ static u32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr,
if ((ent & SCAN_ADDR_SZ) == SCAN_ADDR_SZ_SZD) {
size = bcma_erom_get_ent(bus, eromptr);
- sizel = size & SCAN_SIZE_SZ;
if (size & SCAN_SIZE_SG32)
sizeh = bcma_erom_get_ent(bus, eromptr);
- } else
- sizel = SCAN_ADDR_SZ_BASE <<
- ((ent & SCAN_ADDR_SZ) >> SCAN_ADDR_SZ_SHIFT);
+ }
return addrl;
}
@@ -425,11 +422,11 @@ static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr,
}
}
if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
- core->io_addr = ioremap_nocache(core->addr, BCMA_CORE_SIZE);
+ core->io_addr = ioremap(core->addr, BCMA_CORE_SIZE);
if (!core->io_addr)
return -ENOMEM;
if (core->wrap) {
- core->io_wrap = ioremap_nocache(core->wrap,
+ core->io_wrap = ioremap(core->wrap,
BCMA_CORE_SIZE);
if (!core->io_wrap) {
iounmap(core->io_addr);
@@ -472,7 +469,7 @@ int bcma_bus_scan(struct bcma_bus *bus)
erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM);
if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
- eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE);
+ eromptr = ioremap(erombase, BCMA_CORE_SIZE);
if (!eromptr)
return -ENOMEM;
} else {
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index bd19f8af950b..7b32fb673375 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -329,6 +329,7 @@ static const struct block_device_operations aoe_bdops = {
.open = aoeblk_open,
.release = aoeblk_release,
.ioctl = aoeblk_ioctl,
+ .compat_ioctl = blkdev_compat_ptr_ioctl,
.getgeo = aoeblk_getgeo,
.owner = THIS_MODULE,
};
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 485865fd0412..cd3612e4e2e1 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3879,6 +3879,9 @@ static int fd_compat_ioctl(struct block_device *bdev, fmode_t mode, unsigned int
{
int drive = (long)bdev->bd_disk->private_data;
switch (cmd) {
+ case CDROMEJECT: /* CD-ROM eject */
+ case 0x6470: /* SunOS floppy eject */
+
case FDMSGON:
case FDMSGOFF:
case FDSETEMSGTRESH:
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 57532465fb83..b4607dd96185 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -1296,10 +1296,10 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b
mutex_unlock(&nbd->config_lock);
ret = wait_event_interruptible(config->recv_wq,
atomic_read(&config->recv_threads) == 0);
- if (ret) {
+ if (ret)
sock_shutdown(nbd);
- flush_workqueue(nbd->recv_workq);
- }
+ flush_workqueue(nbd->recv_workq);
+
mutex_lock(&nbd->config_lock);
nbd_bdev_reset(bdev);
/* user requested, ignore socket errors */
diff --git a/drivers/block/null_blk_zoned.c b/drivers/block/null_blk_zoned.c
index d4d88b581822..ed34785dd64b 100644
--- a/drivers/block/null_blk_zoned.c
+++ b/drivers/block/null_blk_zoned.c
@@ -129,11 +129,13 @@ static blk_status_t null_zone_write(struct nullb_cmd *cmd, sector_t sector,
return BLK_STS_IOERR;
case BLK_ZONE_COND_EMPTY:
case BLK_ZONE_COND_IMP_OPEN:
+ case BLK_ZONE_COND_EXP_OPEN:
+ case BLK_ZONE_COND_CLOSED:
/* Writes must be at the write pointer position */
if (sector != zone->wp)
return BLK_STS_IOERR;
- if (zone->cond == BLK_ZONE_COND_EMPTY)
+ if (zone->cond != BLK_ZONE_COND_EXP_OPEN)
zone->cond = BLK_ZONE_COND_IMP_OPEN;
zone->wp += nr_sectors;
@@ -186,7 +188,10 @@ static blk_status_t null_zone_mgmt(struct nullb_cmd *cmd, enum req_opf op,
if (zone->cond == BLK_ZONE_COND_FULL)
return BLK_STS_IOERR;
- zone->cond = BLK_ZONE_COND_CLOSED;
+ if (zone->wp == zone->start)
+ zone->cond = BLK_ZONE_COND_EMPTY;
+ else
+ zone->cond = BLK_ZONE_COND_CLOSED;
break;
case REQ_OP_ZONE_FINISH:
if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index 636bfea2de6f..117cfc8cd05a 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -275,6 +275,9 @@ static const struct block_device_operations pcd_bdops = {
.open = pcd_block_open,
.release = pcd_block_release,
.ioctl = pcd_block_ioctl,
+#ifdef CONFIG_COMPAT
+ .ioctl = blkdev_compat_ptr_ioctl,
+#endif
.check_events = pcd_block_check_events,
};
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index 6f9ad3fc716f..c0967507d085 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -874,6 +874,7 @@ static const struct block_device_operations pd_fops = {
.open = pd_open,
.release = pd_release,
.ioctl = pd_ioctl,
+ .compat_ioctl = pd_ioctl,
.getgeo = pd_getgeo,
.check_events = pd_check_events,
.revalidate_disk= pd_revalidate
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index 6b7d4cab3687..bb09f21ce21a 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -276,6 +276,7 @@ static const struct block_device_operations pf_fops = {
.open = pf_open,
.release = pf_release,
.ioctl = pf_ioctl,
+ .compat_ioctl = pf_ioctl,
.getgeo = pf_getgeo,
.check_events = pf_check_events,
};
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index ee67bf929fac..5f970a7d32c0 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2663,28 +2663,6 @@ static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
return ret;
}
-#ifdef CONFIG_COMPAT
-static int pkt_compat_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
-{
- switch (cmd) {
- /* compatible */
- case CDROMEJECT:
- case CDROMMULTISESSION:
- case CDROMREADTOCENTRY:
- case SCSI_IOCTL_SEND_COMMAND:
- return pkt_ioctl(bdev, mode, cmd, (unsigned long)compat_ptr(arg));
-
-
- /* FIXME: no handler so far */
- case CDROM_LAST_WRITTEN:
- /* handled in compat_blkdev_driver_ioctl */
- case CDROM_SEND_PACKET:
- default:
- return -ENOIOCTLCMD;
- }
-}
-#endif
-
static unsigned int pkt_check_events(struct gendisk *disk,
unsigned int clearing)
{
@@ -2706,9 +2684,7 @@ static const struct block_device_operations pktcdvd_ops = {
.open = pkt_open,
.release = pkt_close,
.ioctl = pkt_ioctl,
-#ifdef CONFIG_COMPAT
- .ioctl = pkt_compat_ioctl,
-#endif
+ .compat_ioctl = blkdev_compat_ptr_ioctl,
.check_events = pkt_check_events,
};
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 571612e233fe..39aeebc6837d 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -171,6 +171,7 @@ static const struct block_device_operations vdc_fops = {
.owner = THIS_MODULE,
.getgeo = vdc_getgeo,
.ioctl = vdc_ioctl,
+ .compat_ioctl = blkdev_compat_ptr_ioctl,
};
static void vdc_blk_queue_start(struct vdc_port *port)
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 1f3f9e0f02a8..4eaf97d7a170 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -827,7 +827,7 @@ static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
goto failed_req_csr;
}
- card->csr_remap = ioremap_nocache(csr_base, csr_len);
+ card->csr_remap = ioremap(csr_base, csr_len);
if (!card->csr_remap) {
dev_printk(KERN_ERR, &card->dev->dev,
"Unable to remap memory region\n");
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 7ffd719d89de..fbbf18ac1d5d 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -405,6 +405,9 @@ static int virtblk_getgeo(struct block_device *bd, struct hd_geometry *geo)
static const struct block_device_operations virtblk_fops = {
.ioctl = virtblk_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = blkdev_compat_ptr_ioctl,
+#endif
.owner = THIS_MODULE,
.getgeo = virtblk_getgeo,
};
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index d6a6adfd5159..4c5d99f87813 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -190,6 +190,9 @@ static int xen_blkif_map(struct xen_blkif_ring *ring, grant_ref_t *gref,
{
int err;
struct xen_blkif *blkif = ring->blkif;
+ const struct blkif_common_sring *sring_common;
+ RING_IDX rsp_prod, req_prod;
+ unsigned int size;
/* Already connected through? */
if (ring->irq)
@@ -200,46 +203,62 @@ static int xen_blkif_map(struct xen_blkif_ring *ring, grant_ref_t *gref,
if (err < 0)
return err;
+ sring_common = (struct blkif_common_sring *)ring->blk_ring;
+ rsp_prod = READ_ONCE(sring_common->rsp_prod);
+ req_prod = READ_ONCE(sring_common->req_prod);
+
switch (blkif->blk_protocol) {
case BLKIF_PROTOCOL_NATIVE:
{
- struct blkif_sring *sring;
- sring = (struct blkif_sring *)ring->blk_ring;
- BACK_RING_INIT(&ring->blk_rings.native, sring,
- XEN_PAGE_SIZE * nr_grefs);
+ struct blkif_sring *sring_native =
+ (struct blkif_sring *)ring->blk_ring;
+
+ BACK_RING_ATTACH(&ring->blk_rings.native, sring_native,
+ rsp_prod, XEN_PAGE_SIZE * nr_grefs);
+ size = __RING_SIZE(sring_native, XEN_PAGE_SIZE * nr_grefs);
break;
}
case BLKIF_PROTOCOL_X86_32:
{
- struct blkif_x86_32_sring *sring_x86_32;
- sring_x86_32 = (struct blkif_x86_32_sring *)ring->blk_ring;
- BACK_RING_INIT(&ring->blk_rings.x86_32, sring_x86_32,
- XEN_PAGE_SIZE * nr_grefs);
+ struct blkif_x86_32_sring *sring_x86_32 =
+ (struct blkif_x86_32_sring *)ring->blk_ring;
+
+ BACK_RING_ATTACH(&ring->blk_rings.x86_32, sring_x86_32,
+ rsp_prod, XEN_PAGE_SIZE * nr_grefs);
+ size = __RING_SIZE(sring_x86_32, XEN_PAGE_SIZE * nr_grefs);
break;
}
case BLKIF_PROTOCOL_X86_64:
{
- struct blkif_x86_64_sring *sring_x86_64;
- sring_x86_64 = (struct blkif_x86_64_sring *)ring->blk_ring;
- BACK_RING_INIT(&ring->blk_rings.x86_64, sring_x86_64,
- XEN_PAGE_SIZE * nr_grefs);
+ struct blkif_x86_64_sring *sring_x86_64 =
+ (struct blkif_x86_64_sring *)ring->blk_ring;
+
+ BACK_RING_ATTACH(&ring->blk_rings.x86_64, sring_x86_64,
+ rsp_prod, XEN_PAGE_SIZE * nr_grefs);
+ size = __RING_SIZE(sring_x86_64, XEN_PAGE_SIZE * nr_grefs);
break;
}
default:
BUG();
}
+ err = -EIO;
+ if (req_prod - rsp_prod > size)
+ goto fail;
+
err = bind_interdomain_evtchn_to_irqhandler(blkif->domid, evtchn,
xen_blkif_be_int, 0,
"blkif-backend", ring);
- if (err < 0) {
- xenbus_unmap_ring_vfree(blkif->be->dev, ring->blk_ring);
- ring->blk_rings.common.sring = NULL;
- return err;
- }
+ if (err < 0)
+ goto fail;
ring->irq = err;
return 0;
+
+fail:
+ xenbus_unmap_ring_vfree(blkif->be->dev, ring->blk_ring);
+ ring->blk_rings.common.sring = NULL;
+ return err;
}
static int xen_blkif_disconnect(struct xen_blkif *blkif)
@@ -1131,7 +1150,8 @@ static struct xenbus_driver xen_blkbk_driver = {
.ids = xen_blkbk_ids,
.probe = xen_blkbk_probe,
.remove = xen_blkbk_remove,
- .otherend_changed = frontend_changed
+ .otherend_changed = frontend_changed,
+ .allow_rebind = true,
};
int xen_blkif_xenbus_init(void)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index a74d03913822..57d50c5ba309 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1113,8 +1113,8 @@ static int xlvbd_alloc_gendisk(blkif_sector_t capacity,
if (!VDEV_IS_EXTENDED(info->vdevice)) {
err = xen_translate_vdev(info->vdevice, &minor, &offset);
if (err)
- return err;
- nr_parts = PARTS_PER_DISK;
+ return err;
+ nr_parts = PARTS_PER_DISK;
} else {
minor = BLKIF_MINOR_EXT(info->vdevice);
nr_parts = PARTS_PER_EXT_DISK;
@@ -2632,6 +2632,7 @@ static const struct block_device_operations xlvbd_block_fops =
.release = blkif_release,
.getgeo = blkif_getgeo,
.ioctl = blkif_ioctl,
+ .compat_ioctl = blkdev_compat_ptr_ioctl,
};
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index 8e05706fe5d9..1f498f358f60 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -36,6 +36,7 @@ int btbcm_check_bdaddr(struct hci_dev *hdev)
HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
int err = PTR_ERR(skb);
+
bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
return err;
}
@@ -107,6 +108,52 @@ int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
}
EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
+int btbcm_read_pcm_int_params(struct hci_dev *hdev,
+ struct bcm_set_pcm_int_params *params)
+{
+ struct sk_buff *skb;
+ int err = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);
+ return err;
+ }
+
+ if (skb->len != 6 || skb->data[0]) {
+ bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");
+ kfree_skb(skb);
+ return -EIO;
+ }
+
+ if (params)
+ memcpy(params, skb->data + 1, 5);
+
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);
+
+int btbcm_write_pcm_int_params(struct hci_dev *hdev,
+ const struct bcm_set_pcm_int_params *params)
+{
+ struct sk_buff *skb;
+ int err;
+
+ skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);
+
int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
{
const struct hci_command_hdr *cmd;
@@ -177,6 +224,7 @@ static int btbcm_reset(struct hci_dev *hdev)
skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
int err = PTR_ERR(skb);
+
bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
return err;
}
diff --git a/drivers/bluetooth/btbcm.h b/drivers/bluetooth/btbcm.h
index d204be8a84bf..014ef847a486 100644
--- a/drivers/bluetooth/btbcm.h
+++ b/drivers/bluetooth/btbcm.h
@@ -54,6 +54,10 @@ struct bcm_set_pcm_format_params {
int btbcm_check_bdaddr(struct hci_dev *hdev);
int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw);
+int btbcm_read_pcm_int_params(struct hci_dev *hdev,
+ struct bcm_set_pcm_int_params *params);
+int btbcm_write_pcm_int_params(struct hci_dev *hdev,
+ const struct bcm_set_pcm_int_params *params);
int btbcm_setup_patchram(struct hci_dev *hdev);
int btbcm_setup_apple(struct hci_dev *hdev);
@@ -74,6 +78,18 @@ static inline int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
return -EOPNOTSUPP;
}
+static inline int btbcm_read_pcm_int_params(struct hci_dev *hdev,
+ struct bcm_set_pcm_int_params *params)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline int btbcm_write_pcm_int_params(struct hci_dev *hdev,
+ const struct bcm_set_pcm_int_params *params)
+{
+ return -EOPNOTSUPP;
+}
+
static inline int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
{
return -EOPNOTSUPP;
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index f838537f9f89..577cfa3329db 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -370,11 +370,11 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
* the end.
*/
len = patch_length;
- buf = kmemdup(btrtl_dev->fw_data + patch_offset, patch_length,
- GFP_KERNEL);
+ buf = kvmalloc(patch_length, GFP_KERNEL);
if (!buf)
return -ENOMEM;
+ memcpy(buf, btrtl_dev->fw_data + patch_offset, patch_length - 4);
memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4);
*_buf = buf;
@@ -460,8 +460,10 @@ static int rtl_load_file(struct hci_dev *hdev, const char *name, u8 **buff)
if (ret < 0)
return ret;
ret = fw->size;
- *buff = kmemdup(fw->data, ret, GFP_KERNEL);
- if (!*buff)
+ *buff = kvmalloc(fw->size, GFP_KERNEL);
+ if (*buff)
+ memcpy(*buff, fw->data, ret);
+ else
ret = -ENOMEM;
release_firmware(fw);
@@ -499,14 +501,14 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
goto out;
if (btrtl_dev->cfg_len > 0) {
- tbuff = kzalloc(ret + btrtl_dev->cfg_len, GFP_KERNEL);
+ tbuff = kvzalloc(ret + btrtl_dev->cfg_len, GFP_KERNEL);
if (!tbuff) {
ret = -ENOMEM;
goto out;
}
memcpy(tbuff, fw_data, ret);
- kfree(fw_data);
+ kvfree(fw_data);
memcpy(tbuff + ret, btrtl_dev->cfg_data, btrtl_dev->cfg_len);
ret += btrtl_dev->cfg_len;
@@ -519,14 +521,14 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
ret = rtl_download_firmware(hdev, fw_data, ret);
out:
- kfree(fw_data);
+ kvfree(fw_data);
return ret;
}
void btrtl_free(struct btrtl_device_info *btrtl_dev)
{
- kfree(btrtl_dev->fw_data);
- kfree(btrtl_dev->cfg_data);
+ kvfree(btrtl_dev->fw_data);
+ kvfree(btrtl_dev->cfg_data);
kfree(btrtl_dev);
}
EXPORT_SYMBOL_GPL(btrtl_free);
diff --git a/drivers/bluetooth/btsdio.c b/drivers/bluetooth/btsdio.c
index fd9571d5fdac..199e8f7d426d 100644
--- a/drivers/bluetooth/btsdio.c
+++ b/drivers/bluetooth/btsdio.c
@@ -145,11 +145,20 @@ static int btsdio_rx_packet(struct btsdio_data *data)
data->hdev->stat.byte_rx += len;
- hci_skb_pkt_type(skb) = hdr[3];
-
- err = hci_recv_frame(data->hdev, skb);
- if (err < 0)
- return err;
+ switch (hdr[3]) {
+ case HCI_EVENT_PKT:
+ case HCI_ACLDATA_PKT:
+ case HCI_SCODATA_PKT:
+ case HCI_ISODATA_PKT:
+ hci_skb_pkt_type(skb) = hdr[3];
+ err = hci_recv_frame(data->hdev, skb);
+ if (err < 0)
+ return err;
+ break;
+ default:
+ kfree_skb(skb);
+ return -EINVAL;
+ }
sdio_writeb(data->func, 0x00, REG_PC_RRT, NULL);
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 70e385987d41..f5924f3e8b8d 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -266,6 +266,7 @@ static const struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
+ { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
{ USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
@@ -552,9 +553,9 @@ static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
}
bt_dev_err(hdev, "Reset Realtek device via gpio");
- gpiod_set_value_cansleep(reset_gpio, 0);
- msleep(200);
gpiod_set_value_cansleep(reset_gpio, 1);
+ msleep(200);
+ gpiod_set_value_cansleep(reset_gpio, 0);
}
static inline void btusb_free_frags(struct btusb_data *data)
@@ -2602,7 +2603,7 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
* and being processed the events from there then.
*/
if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
- data->evt_skb = skb_clone(skb, GFP_KERNEL);
+ data->evt_skb = skb_clone(skb, GFP_ATOMIC);
if (!data->evt_skb)
goto err_out;
}
@@ -2867,7 +2868,7 @@ static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
- return err;
+ goto err_release_fw;
}
/* Wait a few moments for firmware activation done */
@@ -3832,6 +3833,10 @@ static int btusb_probe(struct usb_interface *intf,
* (DEVICE_REMOTE_WAKEUP)
*/
set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
+
+ err = usb_autopm_get_interface(intf);
+ if (err < 0)
+ goto out_free_dev;
}
if (id->driver_info & BTUSB_AMP) {
diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c
index d2a6a4afdbbb..b236cb11c0dc 100644
--- a/drivers/bluetooth/hci_bcm.c
+++ b/drivers/bluetooth/hci_bcm.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/of.h>
+#include <linux/of_irq.h>
#include <linux/property.h>
#include <linux/platform_data/x86/apple.h>
#include <linux/platform_device.h>
@@ -48,6 +49,15 @@
#define BCM_NUM_SUPPLIES 2
/**
+ * struct bcm_device_data - device specific data
+ * @no_early_set_baudrate: Disallow set baudrate before driver setup()
+ */
+struct bcm_device_data {
+ bool no_early_set_baudrate;
+ bool drive_rts_on_open;
+};
+
+/**
* struct bcm_device - device driver resources
* @serdev_hu: HCI UART controller struct
* @list: bcm_device_list node
@@ -79,6 +89,7 @@
* @hu: pointer to HCI UART controller struct,
* used to disable flow control during runtime suspend and system sleep
* @is_suspended: whether flow control is currently disabled
+ * @no_early_set_baudrate: don't set_baudrate before setup()
*/
struct bcm_device {
/* Must be the first member, hci_serdev.c expects this. */
@@ -112,6 +123,9 @@ struct bcm_device {
struct hci_uart *hu;
bool is_suspended;
#endif
+ bool no_early_set_baudrate;
+ bool drive_rts_on_open;
+ u8 pcm_int_params[5];
};
/* generic bcm uart resources */
@@ -445,11 +459,22 @@ static int bcm_open(struct hci_uart *hu)
out:
if (bcm->dev) {
- hci_uart_set_flow_control(hu, true);
+ if (bcm->dev->drive_rts_on_open)
+ hci_uart_set_flow_control(hu, true);
+
hu->init_speed = bcm->dev->init_speed;
- hu->oper_speed = bcm->dev->oper_speed;
+
+ /* If oper_speed is set, ldisc/serdev will set the baudrate
+ * before calling setup()
+ */
+ if (!bcm->dev->no_early_set_baudrate)
+ hu->oper_speed = bcm->dev->oper_speed;
+
err = bcm_gpio_set_power(bcm->dev, true);
- hci_uart_set_flow_control(hu, false);
+
+ if (bcm->dev->drive_rts_on_open)
+ hci_uart_set_flow_control(hu, false);
+
if (err)
goto err_unset_hu;
}
@@ -565,6 +590,8 @@ static int bcm_setup(struct hci_uart *hu)
/* Operational speed if any */
if (hu->oper_speed)
speed = hu->oper_speed;
+ else if (bcm->dev && bcm->dev->oper_speed)
+ speed = bcm->dev->oper_speed;
else if (hu->proto->oper_speed)
speed = hu->proto->oper_speed;
else
@@ -576,6 +603,16 @@ static int bcm_setup(struct hci_uart *hu)
host_set_baudrate(hu, speed);
}
+ /* PCM parameters if provided */
+ if (bcm->dev && bcm->dev->pcm_int_params[0] != 0xff) {
+ struct bcm_set_pcm_int_params params;
+
+ btbcm_read_pcm_int_params(hu->hdev, &params);
+
+ memcpy(&params, bcm->dev->pcm_int_params, 5);
+ btbcm_write_pcm_int_params(hu->hdev, &params);
+ }
+
finalize:
release_firmware(fw);
@@ -1113,6 +1150,10 @@ static int bcm_acpi_probe(struct bcm_device *dev)
static int bcm_of_probe(struct bcm_device *bdev)
{
device_property_read_u32(bdev->dev, "max-speed", &bdev->oper_speed);
+ device_property_read_u8_array(bdev->dev, "brcm,bt-pcm-int-params",
+ bdev->pcm_int_params, 5);
+ bdev->irq = of_irq_get_byname(bdev->dev->of_node, "host-wakeup");
+
return 0;
}
@@ -1128,6 +1169,9 @@ static int bcm_probe(struct platform_device *pdev)
dev->dev = &pdev->dev;
dev->irq = platform_get_irq(pdev, 0);
+ /* Initialize routing field to an unused value */
+ dev->pcm_int_params[0] = 0xff;
+
if (has_acpi_companion(&pdev->dev)) {
ret = bcm_acpi_probe(dev);
if (ret)
@@ -1374,6 +1418,7 @@ static struct platform_driver bcm_driver = {
static int bcm_serdev_probe(struct serdev_device *serdev)
{
struct bcm_device *bcmdev;
+ const struct bcm_device_data *data;
int err;
bcmdev = devm_kzalloc(&serdev->dev, sizeof(*bcmdev), GFP_KERNEL);
@@ -1387,6 +1432,9 @@ static int bcm_serdev_probe(struct serdev_device *serdev)
bcmdev->serdev_hu.serdev = serdev;
serdev_device_set_drvdata(serdev, bcmdev);
+ /* Initialize routing field to an unused value */
+ bcmdev->pcm_int_params[0] = 0xff;
+
if (has_acpi_companion(&serdev->dev))
err = bcm_acpi_probe(bcmdev);
else
@@ -1408,6 +1456,12 @@ static int bcm_serdev_probe(struct serdev_device *serdev)
if (err)
dev_err(&serdev->dev, "Failed to power down\n");
+ data = device_get_match_data(bcmdev->dev);
+ if (data) {
+ bcmdev->no_early_set_baudrate = data->no_early_set_baudrate;
+ bcmdev->drive_rts_on_open = data->drive_rts_on_open;
+ }
+
return hci_uart_register_device(&bcmdev->serdev_hu, &bcm_proto);
}
@@ -1419,12 +1473,21 @@ static void bcm_serdev_remove(struct serdev_device *serdev)
}
#ifdef CONFIG_OF
+static struct bcm_device_data bcm4354_device_data = {
+ .no_early_set_baudrate = true,
+};
+
+static struct bcm_device_data bcm43438_device_data = {
+ .drive_rts_on_open = true,
+};
+
static const struct of_device_id bcm_bluetooth_of_match[] = {
{ .compatible = "brcm,bcm20702a1" },
+ { .compatible = "brcm,bcm4329-bt" },
{ .compatible = "brcm,bcm4345c5" },
{ .compatible = "brcm,bcm4330-bt" },
- { .compatible = "brcm,bcm43438-bt" },
- { .compatible = "brcm,bcm43540-bt" },
+ { .compatible = "brcm,bcm43438-bt", .data = &bcm43438_device_data },
+ { .compatible = "brcm,bcm43540-bt", .data = &bcm4354_device_data },
{ .compatible = "brcm,bcm4335a0" },
{ },
};
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index 19ba52005009..6dc1fbeb564b 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -103,6 +103,7 @@ static const struct h4_recv_pkt h4_recv_pkts[] = {
{ H4_RECV_ACL, .recv = hci_recv_frame },
{ H4_RECV_SCO, .recv = hci_recv_frame },
{ H4_RECV_EVENT, .recv = hci_recv_frame },
+ { H4_RECV_ISO, .recv = hci_recv_frame },
};
/* Recv data */
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index dacf297baf59..0b14547482a7 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -385,6 +385,7 @@ static void h5_complete_rx_pkt(struct hci_uart *hu)
case HCI_EVENT_PKT:
case HCI_ACLDATA_PKT:
case HCI_SCODATA_PKT:
+ case HCI_ISODATA_PKT:
hci_skb_pkt_type(h5->rx_skb) = H5_HDR_PKT_TYPE(hdr);
/* Remove Three-wire header */
@@ -594,6 +595,7 @@ static int h5_enqueue(struct hci_uart *hu, struct sk_buff *skb)
break;
case HCI_SCODATA_PKT:
+ case HCI_ISODATA_PKT:
skb_queue_tail(&h5->unrel, skb);
break;
@@ -636,6 +638,7 @@ static bool valid_packet_type(u8 type)
case HCI_ACLDATA_PKT:
case HCI_COMMAND_PKT:
case HCI_SCODATA_PKT:
+ case HCI_ISODATA_PKT:
case HCI_3WIRE_LINK_PKT:
case HCI_3WIRE_ACK_PKT:
return true;
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index f10bdf8e1fc5..d6e0c99ee5eb 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -20,6 +20,7 @@
#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
+#include <linux/devcoredump.h>
#include <linux/device.h>
#include <linux/gpio/consumer.h>
#include <linux/mod_devicetable.h>
@@ -46,6 +47,7 @@
#define IBS_BTSOC_TX_IDLE_TIMEOUT_MS 40
#define IBS_HOST_TX_IDLE_TIMEOUT_MS 2000
#define CMD_TRANS_TIMEOUT_MS 100
+#define MEMDUMP_TIMEOUT_MS 8000
/* susclk rate */
#define SUSCLK_RATE_32KHZ 32768
@@ -53,12 +55,24 @@
/* Controller debug log header */
#define QCA_DEBUG_HANDLE 0x2EDC
+/* max retry count when init fails */
+#define MAX_INIT_RETRIES 3
+
+/* Controller dump header */
+#define QCA_SSR_DUMP_HANDLE 0x0108
+#define QCA_DUMP_PACKET_SIZE 255
+#define QCA_LAST_SEQUENCE_NUM 0xFFFF
+#define QCA_CRASHBYTE_PACKET_LEN 1096
+#define QCA_MEMDUMP_BYTE 0xFB
+
enum qca_flags {
QCA_IBS_ENABLED,
QCA_DROP_VENDOR_EVENT,
QCA_SUSPENDING,
+ QCA_MEMDUMP_COLLECTION
};
+
/* HCI_IBS transmit side sleep protocol states */
enum tx_ibs_states {
HCI_IBS_TX_ASLEEP,
@@ -81,11 +95,40 @@ enum hci_ibs_clock_state_vote {
HCI_IBS_RX_VOTE_CLOCK_OFF,
};
+/* Controller memory dump states */
+enum qca_memdump_states {
+ QCA_MEMDUMP_IDLE,
+ QCA_MEMDUMP_COLLECTING,
+ QCA_MEMDUMP_COLLECTED,
+ QCA_MEMDUMP_TIMEOUT,
+};
+
+struct qca_memdump_data {
+ char *memdump_buf_head;
+ char *memdump_buf_tail;
+ u32 current_seq_no;
+ u32 received_dump;
+};
+
+struct qca_memdump_event_hdr {
+ __u8 evt;
+ __u8 plen;
+ __u16 opcode;
+ __u16 seq_no;
+ __u8 reserved;
+} __packed;
+
+
+struct qca_dump_size {
+ u32 dump_size;
+} __packed;
+
struct qca_data {
struct hci_uart *hu;
struct sk_buff *rx_skb;
struct sk_buff_head txq;
struct sk_buff_head tx_wait_q; /* HCI_IBS wait queue */
+ struct sk_buff_head rx_memdump_q; /* Memdump wait queue */
spinlock_t hci_ibs_lock; /* HCI_IBS state lock */
u8 tx_ibs_state; /* HCI_IBS transmit side power state*/
u8 rx_ibs_state; /* HCI_IBS receive side power state */
@@ -95,14 +138,18 @@ struct qca_data {
u32 tx_idle_delay;
struct timer_list wake_retrans_timer;
u32 wake_retrans;
+ struct timer_list memdump_timer;
struct workqueue_struct *workqueue;
struct work_struct ws_awake_rx;
struct work_struct ws_awake_device;
struct work_struct ws_rx_vote_off;
struct work_struct ws_tx_vote_off;
+ struct work_struct ctrl_memdump_evt;
+ struct qca_memdump_data *qca_memdump;
unsigned long flags;
struct completion drop_ev_comp;
wait_queue_head_t suspend_wait_q;
+ enum qca_memdump_states memdump_state;
/* For debugging purpose */
u64 ibs_sent_wacks;
@@ -167,6 +214,7 @@ static int qca_regulator_enable(struct qca_serdev *qcadev);
static void qca_regulator_disable(struct qca_serdev *qcadev);
static void qca_power_shutdown(struct hci_uart *hu);
static int qca_power_off(struct hci_dev *hdev);
+static void qca_controller_memdump(struct work_struct *work);
static enum qca_btsoc_type qca_soc_type(struct hci_uart *hu)
{
@@ -474,12 +522,28 @@ static void hci_ibs_wake_retrans_timeout(struct timer_list *t)
hci_uart_tx_wakeup(hu);
}
+static void hci_memdump_timeout(struct timer_list *t)
+{
+ struct qca_data *qca = from_timer(qca, t, tx_idle_timer);
+ struct hci_uart *hu = qca->hu;
+ struct qca_memdump_data *qca_memdump = qca->qca_memdump;
+ char *memdump_buf = qca_memdump->memdump_buf_tail;
+
+ bt_dev_err(hu->hdev, "clearing allocated memory due to memdump timeout");
+ /* Inject hw error event to reset the device and driver. */
+ hci_reset_dev(hu->hdev);
+ vfree(memdump_buf);
+ kfree(qca_memdump);
+ qca->memdump_state = QCA_MEMDUMP_TIMEOUT;
+ del_timer(&qca->memdump_timer);
+ cancel_work_sync(&qca->ctrl_memdump_evt);
+}
+
/* Initialize protocol */
static int qca_open(struct hci_uart *hu)
{
struct qca_serdev *qcadev;
struct qca_data *qca;
- int ret;
BT_DBG("hu %p qca_open", hu);
@@ -492,6 +556,7 @@ static int qca_open(struct hci_uart *hu)
skb_queue_head_init(&qca->txq);
skb_queue_head_init(&qca->tx_wait_q);
+ skb_queue_head_init(&qca->rx_memdump_q);
spin_lock_init(&qca->hci_ibs_lock);
qca->workqueue = alloc_ordered_workqueue("qca_wq", 0);
if (!qca->workqueue) {
@@ -504,7 +569,7 @@ static int qca_open(struct hci_uart *hu)
INIT_WORK(&qca->ws_awake_device, qca_wq_awake_device);
INIT_WORK(&qca->ws_rx_vote_off, qca_wq_serial_rx_clock_vote_off);
INIT_WORK(&qca->ws_tx_vote_off, qca_wq_serial_tx_clock_vote_off);
-
+ INIT_WORK(&qca->ctrl_memdump_evt, qca_controller_memdump);
init_waitqueue_head(&qca->suspend_wait_q);
qca->hu = hu;
@@ -519,23 +584,10 @@ static int qca_open(struct hci_uart *hu)
hu->priv = qca;
if (hu->serdev) {
-
qcadev = serdev_device_get_drvdata(hu->serdev);
- if (!qca_is_wcn399x(qcadev->btsoc_type)) {
- gpiod_set_value_cansleep(qcadev->bt_en, 1);
- /* Controller needs time to bootup. */
- msleep(150);
- } else {
+ if (qca_is_wcn399x(qcadev->btsoc_type)) {
hu->init_speed = qcadev->init_speed;
hu->oper_speed = qcadev->oper_speed;
- ret = qca_regulator_enable(qcadev);
- if (ret) {
- destroy_workqueue(qca->workqueue);
- kfree_skb(qca->rx_skb);
- hu->priv = NULL;
- kfree(qca);
- return ret;
- }
}
}
@@ -544,6 +596,7 @@ static int qca_open(struct hci_uart *hu)
timer_setup(&qca->tx_idle_timer, hci_ibs_tx_idle_timeout, 0);
qca->tx_idle_delay = IBS_HOST_TX_IDLE_TIMEOUT_MS;
+ timer_setup(&qca->memdump_timer, hci_memdump_timeout, 0);
BT_DBG("HCI_UART_QCA open, tx_idle_delay=%u, wake_retrans=%u",
qca->tx_idle_delay, qca->wake_retrans);
@@ -613,7 +666,6 @@ static int qca_flush(struct hci_uart *hu)
/* Close protocol */
static int qca_close(struct hci_uart *hu)
{
- struct qca_serdev *qcadev;
struct qca_data *qca = hu->priv;
BT_DBG("hu %p qca close", hu);
@@ -622,19 +674,14 @@ static int qca_close(struct hci_uart *hu)
skb_queue_purge(&qca->tx_wait_q);
skb_queue_purge(&qca->txq);
+ skb_queue_purge(&qca->rx_memdump_q);
del_timer(&qca->tx_idle_timer);
del_timer(&qca->wake_retrans_timer);
+ del_timer(&qca->memdump_timer);
destroy_workqueue(qca->workqueue);
qca->hu = NULL;
- if (hu->serdev) {
- qcadev = serdev_device_get_drvdata(hu->serdev);
- if (qca_is_wcn399x(qcadev->btsoc_type))
- qca_power_shutdown(hu);
- else
- gpiod_set_value_cansleep(qcadev->bt_en, 0);
-
- }
+ qca_power_shutdown(hu);
kfree_skb(qca->rx_skb);
@@ -900,6 +947,125 @@ static int qca_recv_acl_data(struct hci_dev *hdev, struct sk_buff *skb)
return hci_recv_frame(hdev, skb);
}
+static void qca_controller_memdump(struct work_struct *work)
+{
+ struct qca_data *qca = container_of(work, struct qca_data,
+ ctrl_memdump_evt);
+ struct hci_uart *hu = qca->hu;
+ struct sk_buff *skb;
+ struct qca_memdump_event_hdr *cmd_hdr;
+ struct qca_memdump_data *qca_memdump = qca->qca_memdump;
+ struct qca_dump_size *dump;
+ char *memdump_buf;
+ char nullBuff[QCA_DUMP_PACKET_SIZE] = { 0 };
+ u16 seq_no;
+ u32 dump_size;
+
+ while ((skb = skb_dequeue(&qca->rx_memdump_q))) {
+
+ if (!qca_memdump) {
+ qca_memdump = kzalloc(sizeof(struct qca_memdump_data),
+ GFP_ATOMIC);
+ if (!qca_memdump)
+ return;
+
+ qca->qca_memdump = qca_memdump;
+ }
+
+ qca->memdump_state = QCA_MEMDUMP_COLLECTING;
+ cmd_hdr = (void *) skb->data;
+ seq_no = __le16_to_cpu(cmd_hdr->seq_no);
+ skb_pull(skb, sizeof(struct qca_memdump_event_hdr));
+
+ if (!seq_no) {
+
+ /* This is the first frame of memdump packet from
+ * the controller, Disable IBS to recevie dump
+ * with out any interruption, ideally time required for
+ * the controller to send the dump is 8 seconds. let us
+ * start timer to handle this asynchronous activity.
+ */
+ clear_bit(QCA_IBS_ENABLED, &qca->flags);
+ set_bit(QCA_MEMDUMP_COLLECTION, &qca->flags);
+ dump = (void *) skb->data;
+ dump_size = __le32_to_cpu(dump->dump_size);
+ if (!(dump_size)) {
+ bt_dev_err(hu->hdev, "Rx invalid memdump size");
+ kfree_skb(skb);
+ return;
+ }
+
+ bt_dev_info(hu->hdev, "QCA collecting dump of size:%u",
+ dump_size);
+ mod_timer(&qca->memdump_timer, (jiffies +
+ msecs_to_jiffies(MEMDUMP_TIMEOUT_MS)));
+
+ skb_pull(skb, sizeof(dump_size));
+ memdump_buf = vmalloc(dump_size);
+ qca_memdump->memdump_buf_head = memdump_buf;
+ qca_memdump->memdump_buf_tail = memdump_buf;
+ }
+
+ memdump_buf = qca_memdump->memdump_buf_tail;
+
+ /* If sequence no 0 is missed then there is no point in
+ * accepting the other sequences.
+ */
+ if (!memdump_buf) {
+ bt_dev_err(hu->hdev, "QCA: Discarding other packets");
+ kfree(qca_memdump);
+ kfree_skb(skb);
+ qca->qca_memdump = NULL;
+ return;
+ }
+
+ /* There could be chance of missing some packets from
+ * the controller. In such cases let us store the dummy
+ * packets in the buffer.
+ */
+ while ((seq_no > qca_memdump->current_seq_no + 1) &&
+ seq_no != QCA_LAST_SEQUENCE_NUM) {
+ bt_dev_err(hu->hdev, "QCA controller missed packet:%d",
+ qca_memdump->current_seq_no);
+ memcpy(memdump_buf, nullBuff, QCA_DUMP_PACKET_SIZE);
+ memdump_buf = memdump_buf + QCA_DUMP_PACKET_SIZE;
+ qca_memdump->received_dump += QCA_DUMP_PACKET_SIZE;
+ qca_memdump->current_seq_no++;
+ }
+
+ memcpy(memdump_buf, (unsigned char *) skb->data, skb->len);
+ memdump_buf = memdump_buf + skb->len;
+ qca_memdump->memdump_buf_tail = memdump_buf;
+ qca_memdump->current_seq_no = seq_no + 1;
+ qca_memdump->received_dump += skb->len;
+ qca->qca_memdump = qca_memdump;
+ kfree_skb(skb);
+ if (seq_no == QCA_LAST_SEQUENCE_NUM) {
+ bt_dev_info(hu->hdev, "QCA writing crash dump of size %d bytes",
+ qca_memdump->received_dump);
+ memdump_buf = qca_memdump->memdump_buf_head;
+ dev_coredumpv(&hu->serdev->dev, memdump_buf,
+ qca_memdump->received_dump, GFP_KERNEL);
+ del_timer(&qca->memdump_timer);
+ kfree(qca->qca_memdump);
+ qca->qca_memdump = NULL;
+ qca->memdump_state = QCA_MEMDUMP_COLLECTED;
+ }
+ }
+
+}
+
+int qca_controller_memdump_event(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+
+ skb_queue_tail(&qca->rx_memdump_q, skb);
+ queue_work(qca->workqueue, &qca->ctrl_memdump_evt);
+
+ return 0;
+}
+
static int qca_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
@@ -925,6 +1091,14 @@ static int qca_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
return 0;
}
+ /* We receive chip memory dump as an event packet, With a dedicated
+ * handler followed by a hardware error event. When this event is
+ * received we store dump into a file before closing hci. This
+ * dump will help in triaging the issues.
+ */
+ if ((skb->data[0] == HCI_VENDOR_PKT) &&
+ (get_unaligned_be16(skb->data + 2) == QCA_SSR_DUMP_HANDLE))
+ return qca_controller_memdump_event(hdev, skb);
return hci_recv_frame(hdev, skb);
}
@@ -1203,6 +1377,91 @@ error:
return ret;
}
+static int qca_send_crashbuffer(struct hci_uart *hu)
+{
+ struct qca_data *qca = hu->priv;
+ struct sk_buff *skb;
+
+ skb = bt_skb_alloc(QCA_CRASHBYTE_PACKET_LEN, GFP_KERNEL);
+ if (!skb) {
+ bt_dev_err(hu->hdev, "Failed to allocate memory for skb packet");
+ return -ENOMEM;
+ }
+
+ /* We forcefully crash the controller, by sending 0xfb byte for
+ * 1024 times. We also might have chance of losing data, To be
+ * on safer side we send 1096 bytes to the SoC.
+ */
+ memset(skb_put(skb, QCA_CRASHBYTE_PACKET_LEN), QCA_MEMDUMP_BYTE,
+ QCA_CRASHBYTE_PACKET_LEN);
+ hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
+ bt_dev_info(hu->hdev, "crash the soc to collect controller dump");
+ skb_queue_tail(&qca->txq, skb);
+ hci_uart_tx_wakeup(hu);
+
+ return 0;
+}
+
+static void qca_wait_for_dump_collection(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+ struct qca_memdump_data *qca_memdump = qca->qca_memdump;
+ char *memdump_buf = NULL;
+
+ wait_on_bit_timeout(&qca->flags, QCA_MEMDUMP_COLLECTION,
+ TASK_UNINTERRUPTIBLE, MEMDUMP_TIMEOUT_MS);
+
+ clear_bit(QCA_MEMDUMP_COLLECTION, &qca->flags);
+ if (qca->memdump_state == QCA_MEMDUMP_IDLE) {
+ bt_dev_err(hu->hdev, "Clearing the buffers due to timeout");
+ if (qca_memdump)
+ memdump_buf = qca_memdump->memdump_buf_tail;
+ vfree(memdump_buf);
+ kfree(qca_memdump);
+ qca->memdump_state = QCA_MEMDUMP_TIMEOUT;
+ del_timer(&qca->memdump_timer);
+ cancel_work_sync(&qca->ctrl_memdump_evt);
+ }
+}
+
+static void qca_hw_error(struct hci_dev *hdev, u8 code)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+
+ bt_dev_info(hdev, "mem_dump_status: %d", qca->memdump_state);
+
+ if (qca->memdump_state == QCA_MEMDUMP_IDLE) {
+ /* If hardware error event received for other than QCA
+ * soc memory dump event, then we need to crash the SOC
+ * and wait here for 8 seconds to get the dump packets.
+ * This will block main thread to be on hold until we
+ * collect dump.
+ */
+ set_bit(QCA_MEMDUMP_COLLECTION, &qca->flags);
+ qca_send_crashbuffer(hu);
+ qca_wait_for_dump_collection(hdev);
+ } else if (qca->memdump_state == QCA_MEMDUMP_COLLECTING) {
+ /* Let us wait here until memory dump collected or
+ * memory dump timer expired.
+ */
+ bt_dev_info(hdev, "waiting for dump to complete");
+ qca_wait_for_dump_collection(hdev);
+ }
+}
+
+static void qca_cmd_timeout(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+
+ if (qca->memdump_state == QCA_MEMDUMP_IDLE)
+ qca_send_crashbuffer(hu);
+ else
+ bt_dev_info(hdev, "Dump collection is in process");
+}
+
static int qca_wcn3990_init(struct hci_uart *hu)
{
struct qca_serdev *qcadev;
@@ -1253,11 +1512,37 @@ static int qca_wcn3990_init(struct hci_uart *hu)
return 0;
}
+static int qca_power_on(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ enum qca_btsoc_type soc_type = qca_soc_type(hu);
+ struct qca_serdev *qcadev;
+ int ret = 0;
+
+ /* Non-serdev device usually is powered by external power
+ * and don't need additional action in driver for power on
+ */
+ if (!hu->serdev)
+ return 0;
+
+ if (qca_is_wcn399x(soc_type)) {
+ ret = qca_wcn3990_init(hu);
+ } else {
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+ gpiod_set_value_cansleep(qcadev->bt_en, 1);
+ /* Controller needs time to bootup. */
+ msleep(150);
+ }
+
+ return ret;
+}
+
static int qca_setup(struct hci_uart *hu)
{
struct hci_dev *hdev = hu->hdev;
struct qca_data *qca = hu->priv;
unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200;
+ unsigned int retries = 0;
enum qca_btsoc_type soc_type = qca_soc_type(hu);
const char *firmware_name = qca_get_firmware_name(hu);
int ret;
@@ -1275,24 +1560,21 @@ static int qca_setup(struct hci_uart *hu)
*/
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
- if (qca_is_wcn399x(soc_type)) {
- bt_dev_info(hdev, "setting up wcn3990");
+ bt_dev_info(hdev, "setting up %s",
+ qca_is_wcn399x(soc_type) ? "wcn399x" : "ROME");
- /* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute
- * setup for every hci up.
- */
- set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+retry:
+ ret = qca_power_on(hdev);
+ if (ret)
+ return ret;
+
+ if (qca_is_wcn399x(soc_type)) {
set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
- hu->hdev->shutdown = qca_power_off;
- ret = qca_wcn3990_init(hu);
- if (ret)
- return ret;
ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
if (ret)
return ret;
} else {
- bt_dev_info(hdev, "ROME setup");
qca_set_speed(hu, QCA_INIT_SPEED);
}
@@ -1320,6 +1602,8 @@ static int qca_setup(struct hci_uart *hu)
if (!ret) {
set_bit(QCA_IBS_ENABLED, &qca->flags);
qca_debugfs_init(hdev);
+ hu->hdev->hw_error = qca_hw_error;
+ hu->hdev->cmd_timeout = qca_cmd_timeout;
} else if (ret == -ENOENT) {
/* No patch/nvm-config found, run with original fw/config */
ret = 0;
@@ -1329,6 +1613,20 @@ static int qca_setup(struct hci_uart *hu)
* patch/nvm-config is found, so run with original fw/config.
*/
ret = 0;
+ } else {
+ if (retries < MAX_INIT_RETRIES) {
+ qca_power_shutdown(hu);
+ if (hu->serdev) {
+ serdev_device_close(hu->serdev);
+ ret = serdev_device_open(hu->serdev);
+ if (ret) {
+ bt_dev_err(hdev, "failed to open port");
+ return ret;
+ }
+ }
+ retries++;
+ goto retry;
+ }
}
/* Setup bdaddr */
@@ -1393,6 +1691,7 @@ static void qca_power_shutdown(struct hci_uart *hu)
struct qca_serdev *qcadev;
struct qca_data *qca = hu->priv;
unsigned long flags;
+ enum qca_btsoc_type soc_type = qca_soc_type(hu);
qcadev = serdev_device_get_drvdata(hu->serdev);
@@ -1405,20 +1704,36 @@ static void qca_power_shutdown(struct hci_uart *hu)
qca_flush(hu);
spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
- host_set_baudrate(hu, 2400);
- qca_send_power_pulse(hu, false);
- qca_regulator_disable(qcadev);
+ hu->hdev->hw_error = NULL;
+ hu->hdev->cmd_timeout = NULL;
+
+ /* Non-serdev device usually is powered by external power
+ * and don't need additional action in driver for power down
+ */
+ if (!hu->serdev)
+ return;
+
+ if (qca_is_wcn399x(soc_type)) {
+ host_set_baudrate(hu, 2400);
+ qca_send_power_pulse(hu, false);
+ qca_regulator_disable(qcadev);
+ } else {
+ gpiod_set_value_cansleep(qcadev->bt_en, 0);
+ }
}
static int qca_power_off(struct hci_dev *hdev)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
- /* Perform pre shutdown command */
- qca_send_pre_shutdown_cmd(hdev);
-
- usleep_range(8000, 10000);
+ /* Stop sending shutdown command if soc crashes. */
+ if (qca->memdump_state == QCA_MEMDUMP_IDLE) {
+ qca_send_pre_shutdown_cmd(hdev);
+ usleep_range(8000, 10000);
+ }
+ qca->memdump_state = QCA_MEMDUMP_IDLE;
qca_power_shutdown(hu);
return 0;
}
@@ -1493,6 +1808,7 @@ static int qca_init_regulators(struct qca_power *qca,
static int qca_serdev_probe(struct serdev_device *serdev)
{
struct qca_serdev *qcadev;
+ struct hci_dev *hdev;
const struct qca_vreg_data *data;
int err;
@@ -1501,7 +1817,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
return -ENOMEM;
qcadev->serdev_hu.serdev = serdev;
- data = of_device_get_match_data(&serdev->dev);
+ data = device_get_match_data(&serdev->dev);
serdev_device_set_drvdata(serdev, qcadev);
device_property_read_string(&serdev->dev, "firmware-name",
&qcadev->firmware_name);
@@ -1518,7 +1834,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
data->num_vregs);
if (err) {
BT_ERR("Failed to init regulators:%d", err);
- goto out;
+ return err;
}
qcadev->bt_power->vregs_on = false;
@@ -1531,7 +1847,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
if (err) {
BT_ERR("wcn3990 serdev registration failed");
- goto out;
+ return err;
}
} else {
qcadev->btsoc_type = QCA_ROME;
@@ -1557,12 +1873,18 @@ static int qca_serdev_probe(struct serdev_device *serdev)
return err;
err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
- if (err)
+ if (err) {
+ BT_ERR("Rome serdev registration failed");
clk_disable_unprepare(qcadev->susclk);
+ return err;
+ }
}
-out: return err;
+ hdev = qcadev->serdev_hu.hdev;
+ set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+ hdev->shutdown = qca_power_off;
+ return 0;
}
static void qca_serdev_remove(struct serdev_device *serdev)
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
index 6ab631101019..4e039d7a16f8 100644
--- a/drivers/bluetooth/hci_uart.h
+++ b/drivers/bluetooth/hci_uart.h
@@ -143,6 +143,13 @@ struct h4_recv_pkt {
.lsize = 1, \
.maxlen = HCI_MAX_EVENT_SIZE
+#define H4_RECV_ISO \
+ .type = HCI_ISODATA_PKT, \
+ .hlen = HCI_ISO_HDR_SIZE, \
+ .loff = 2, \
+ .lsize = 2, \
+ .maxlen = HCI_MAX_FRAME_SIZE \
+
struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb,
const unsigned char *buffer, int count,
const struct h4_recv_pkt *pkts, int pkts_count);
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 65e41c1d760f..8ab26dec5f6e 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -178,6 +178,7 @@ static inline ssize_t vhci_get_user(struct vhci_data *data,
case HCI_EVENT_PKT:
case HCI_ACLDATA_PKT:
case HCI_SCODATA_PKT:
+ case HCI_ISODATA_PKT:
if (!data->hdev) {
kfree_skb(skb);
return -ENODEV;
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index a07cc19becdb..c78d10ea641f 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -715,9 +715,9 @@ EXPORT_SYMBOL_GPL(fsl_mc_device_remove);
struct fsl_mc_device *fsl_mc_get_endpoint(struct fsl_mc_device *mc_dev)
{
struct fsl_mc_device *mc_bus_dev, *endpoint;
- struct fsl_mc_obj_desc endpoint_desc = { 0 };
- struct dprc_endpoint endpoint1 = { 0 };
- struct dprc_endpoint endpoint2 = { 0 };
+ struct fsl_mc_obj_desc endpoint_desc = {{ 0 }};
+ struct dprc_endpoint endpoint1 = {{ 0 }};
+ struct dprc_endpoint endpoint2 = {{ 0 }};
int state, err;
mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);
diff --git a/drivers/bus/fsl-mc/mc-io.c b/drivers/bus/fsl-mc/mc-io.c
index d9629fc13a15..6ae48ad80409 100644
--- a/drivers/bus/fsl-mc/mc-io.c
+++ b/drivers/bus/fsl-mc/mc-io.c
@@ -97,12 +97,12 @@ int __must_check fsl_create_mc_io(struct device *dev,
return -EBUSY;
}
- mc_portal_virt_addr = devm_ioremap_nocache(dev,
+ mc_portal_virt_addr = devm_ioremap(dev,
mc_portal_phys_addr,
mc_portal_size);
if (!mc_portal_virt_addr) {
dev_err(dev,
- "devm_ioremap_nocache failed for MC portal %pa\n",
+ "devm_ioremap failed for MC portal %pa\n",
&mc_portal_phys_addr);
return -ENXIO;
}
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 56887c6877a7..ccb44fe790a7 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -343,6 +343,12 @@ static int sysc_get_clocks(struct sysc *ddata)
return -EINVAL;
}
+ /* Always add a slot for main clocks fck and ick even if unused */
+ if (!nr_fck)
+ ddata->nr_clocks++;
+ if (!nr_ick)
+ ddata->nr_clocks++;
+
ddata->clocks = devm_kcalloc(ddata->dev,
ddata->nr_clocks, sizeof(*ddata->clocks),
GFP_KERNEL);
@@ -421,7 +427,7 @@ static int sysc_enable_opt_clocks(struct sysc *ddata)
struct clk *clock;
int i, error;
- if (!ddata->clocks)
+ if (!ddata->clocks || ddata->nr_clocks < SYSC_OPTFCK0 + 1)
return 0;
for (i = SYSC_OPTFCK0; i < SYSC_MAX_CLOCKS; i++) {
@@ -455,7 +461,7 @@ static void sysc_disable_opt_clocks(struct sysc *ddata)
struct clk *clock;
int i;
- if (!ddata->clocks)
+ if (!ddata->clocks || ddata->nr_clocks < SYSC_OPTFCK0 + 1)
return;
for (i = SYSC_OPTFCK0; i < SYSC_MAX_CLOCKS; i++) {
@@ -981,7 +987,8 @@ static int sysc_disable_module(struct device *dev)
return ret;
}
- if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_MSTANDBY)
+ if (ddata->cfg.quirks & (SYSC_QUIRK_SWSUP_MSTANDBY) ||
+ ddata->cfg.quirks & (SYSC_QUIRK_FORCE_MSTANDBY))
best_mode = SYSC_IDLE_FORCE;
reg &= ~(SYSC_IDLE_MASK << regbits->midle_shift);
@@ -1583,6 +1590,10 @@ static int sysc_reset(struct sysc *ddata)
sysc_val |= sysc_mask;
sysc_write(ddata, sysc_offset, sysc_val);
+ if (ddata->cfg.srst_udelay)
+ usleep_range(ddata->cfg.srst_udelay,
+ ddata->cfg.srst_udelay * 2);
+
if (ddata->clk_enable_quirk)
ddata->clk_enable_quirk(ddata);
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index eebdcbef0578..faca0f346fff 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -3017,9 +3017,31 @@ static noinline int mmc_ioctl_cdrom_read_audio(struct cdrom_device_info *cdi,
struct cdrom_read_audio ra;
int lba;
- if (copy_from_user(&ra, (struct cdrom_read_audio __user *)arg,
- sizeof(ra)))
- return -EFAULT;
+#ifdef CONFIG_COMPAT
+ if (in_compat_syscall()) {
+ struct compat_cdrom_read_audio {
+ union cdrom_addr addr;
+ u8 addr_format;
+ compat_int_t nframes;
+ compat_caddr_t buf;
+ } ra32;
+
+ if (copy_from_user(&ra32, arg, sizeof(ra32)))
+ return -EFAULT;
+
+ ra = (struct cdrom_read_audio) {
+ .addr = ra32.addr,
+ .addr_format = ra32.addr_format,
+ .nframes = ra32.nframes,
+ .buf = compat_ptr(ra32.buf),
+ };
+ } else
+#endif
+ {
+ if (copy_from_user(&ra, (struct cdrom_read_audio __user *)arg,
+ sizeof(ra)))
+ return -EFAULT;
+ }
if (ra.addr_format == CDROM_MSF)
lba = msf_to_lba(ra.addr.msf.minute,
@@ -3271,9 +3293,10 @@ static noinline int mmc_ioctl_cdrom_last_written(struct cdrom_device_info *cdi,
ret = cdrom_get_last_written(cdi, &last);
if (ret)
return ret;
- if (copy_to_user((long __user *)arg, &last, sizeof(last)))
- return -EFAULT;
- return 0;
+ if (in_compat_syscall())
+ return put_user(last, (__s32 __user *)arg);
+
+ return put_user(last, (long __user *)arg);
}
static int mmc_ioctl(struct cdrom_device_info *cdi, unsigned int cmd,
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 5b21dc421c94..886b2638c730 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -518,6 +518,9 @@ static const struct block_device_operations gdrom_bdops = {
.release = gdrom_bdops_release,
.check_events = gdrom_bdops_check_events,
.ioctl = gdrom_bdops_ioctl,
+#ifdef CONFIG_COMPAT
+ .ioctl = blkdev_compat_ptr_ioctl,
+#endif
};
static irqreturn_t gdrom_command_interrupt(int irq, void *dev_id)
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index ab154a75acf0..9e84239f88d4 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -941,7 +941,7 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
bridge->gatt_table = (u32 __iomem *)table;
#else
- bridge->gatt_table = ioremap_nocache(virt_to_phys(table),
+ bridge->gatt_table = ioremap(virt_to_phys(table),
(PAGE_SIZE * (1 << page_order)));
bridge->driver->cache_flush();
#endif
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index c6271ce250b3..66a62d17a3f5 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1087,7 +1087,7 @@ static void intel_i9xx_setup_flush(void)
}
if (intel_private.ifp_resource.start)
- intel_private.i9xx_flush_page = ioremap_nocache(intel_private.ifp_resource.start, PAGE_SIZE);
+ intel_private.i9xx_flush_page = ioremap(intel_private.ifp_resource.start, PAGE_SIZE);
if (!intel_private.i9xx_flush_page)
dev_err(&intel_private.pcidev->dev,
"can't ioremap flush page - no chipset flushing\n");
diff --git a/drivers/char/agp/isoch.c b/drivers/char/agp/isoch.c
index 31c374b1b91b..7ecf20a6d19c 100644
--- a/drivers/char/agp/isoch.c
+++ b/drivers/char/agp/isoch.c
@@ -84,7 +84,6 @@ static int agp_3_5_isochronous_node_enable(struct agp_bridge_data *bridge,
unsigned int cdev = 0;
u32 mnistat, tnistat, tstatus, mcmd;
u16 tnicmd, mnicmd;
- u8 mcapndx;
u32 tot_bw = 0, tot_n = 0, tot_rq = 0, y_max, rq_isoch, rq_async;
u32 step, rem, rem_isoch, rem_async;
int ret = 0;
@@ -138,8 +137,6 @@ static int agp_3_5_isochronous_node_enable(struct agp_bridge_data *bridge,
cur = list_entry(pos, struct agp_3_5_dev, list);
dev = cur->dev;
- mcapndx = cur->capndx;
-
pci_read_config_dword(dev, cur->capndx+AGPNISTAT, &mnistat);
master[cdev].maxbw = (mnistat >> 16) & 0xff;
@@ -251,8 +248,6 @@ static int agp_3_5_isochronous_node_enable(struct agp_bridge_data *bridge,
cur = master[cdev].dev;
dev = cur->dev;
- mcapndx = cur->capndx;
-
master[cdev].rq += (cdev == ndevs - 1)
? (rem_async + rem_isoch) : step;
@@ -319,7 +314,7 @@ int agp_3_5_enable(struct agp_bridge_data *bridge)
{
struct pci_dev *td = bridge->dev, *dev = NULL;
u8 mcapndx;
- u32 isoch, arqsz;
+ u32 isoch;
u32 tstatus, mstatus, ncapid;
u32 mmajor;
u16 mpstat;
@@ -334,8 +329,6 @@ int agp_3_5_enable(struct agp_bridge_data *bridge)
if (isoch == 0) /* isoch xfers not available, bail out. */
return -ENODEV;
- arqsz = (tstatus >> 13) & 0x7;
-
/*
* Allocate a head for our AGP 3.5 device list
* (multiple AGP v3 devices are allowed behind a single bridge).
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index eb108b3c619a..51121a4b82c7 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -204,7 +204,7 @@ static int __init applicom_init(void)
if (pci_enable_device(dev))
return -EIO;
- RamIO = ioremap_nocache(pci_resource_start(dev, 0), LEN_RAM_IO);
+ RamIO = ioremap(pci_resource_start(dev, 0), LEN_RAM_IO);
if (!RamIO) {
printk(KERN_INFO "ac.o: Failed to ioremap PCI memory "
@@ -259,7 +259,7 @@ static int __init applicom_init(void)
/* Now try the specified ISA cards */
for (i = 0; i < MAX_ISA_BOARD; i++) {
- RamIO = ioremap_nocache(mem + (LEN_RAM_IO * i), LEN_RAM_IO);
+ RamIO = ioremap(mem + (LEN_RAM_IO * i), LEN_RAM_IO);
if (!RamIO) {
printk(KERN_INFO "ac.o: Failed to ioremap the ISA card's memory space (slot #%d)\n", i + 1);
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 9ac6671bb514..aed2c45f7968 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -110,7 +110,7 @@ struct hpets {
unsigned long hp_delta;
unsigned int hp_ntimer;
unsigned int hp_which;
- struct hpet_dev hp_dev[1];
+ struct hpet_dev hp_dev[];
};
static struct hpets *hpets;
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 8486c29d8324..914e293ba62b 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -90,7 +90,7 @@ config HW_RANDOM_BCM2835
config HW_RANDOM_IPROC_RNG200
tristate "Broadcom iProc/STB RNG200 support"
- depends on ARCH_BCM_IPROC || ARCH_BRCMSTB
+ depends on ARCH_BCM_IPROC || ARCH_BCM2835 || ARCH_BRCMSTB
default HW_RANDOM
---help---
This driver provides kernel-side support for the RNG200
diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
index 290c880266bf..9f205bd1acc0 100644
--- a/drivers/char/hw_random/intel-rng.c
+++ b/drivers/char/hw_random/intel-rng.c
@@ -317,7 +317,7 @@ PFX "RNG, try using the 'no_fwh_detect' option.\n";
return -EBUSY;
}
- intel_rng_hw->mem = ioremap_nocache(INTEL_FWH_ADDR, INTEL_FWH_ADDR_LEN);
+ intel_rng_hw->mem = ioremap(INTEL_FWH_ADDR, INTEL_FWH_ADDR_LEN);
if (intel_rng_hw->mem == NULL)
return -EBUSY;
diff --git a/drivers/char/hw_random/iproc-rng200.c b/drivers/char/hw_random/iproc-rng200.c
index 899ff25f4f28..32d9fe61a225 100644
--- a/drivers/char/hw_random/iproc-rng200.c
+++ b/drivers/char/hw_random/iproc-rng200.c
@@ -213,6 +213,7 @@ static int iproc_rng200_probe(struct platform_device *pdev)
}
static const struct of_device_id iproc_rng200_of_match[] = {
+ { .compatible = "brcm,bcm2711-rng200", },
{ .compatible = "brcm,bcm7211-rng200", },
{ .compatible = "brcm,bcm7278-rng200", },
{ .compatible = "brcm,iproc-rng200", },
diff --git a/drivers/char/hw_random/octeon-rng.c b/drivers/char/hw_random/octeon-rng.c
index 8c78aa090492..7be8067ac4e8 100644
--- a/drivers/char/hw_random/octeon-rng.c
+++ b/drivers/char/hw_random/octeon-rng.c
@@ -81,13 +81,13 @@ static int octeon_rng_probe(struct platform_device *pdev)
return -ENOENT;
- rng->control_status = devm_ioremap_nocache(&pdev->dev,
+ rng->control_status = devm_ioremap(&pdev->dev,
res_ports->start,
sizeof(u64));
if (!rng->control_status)
return -ENOENT;
- rng->result = devm_ioremap_nocache(&pdev->dev,
+ rng->result = devm_ioremap(&pdev->dev,
res_result->start,
sizeof(u64));
if (!rng->result)
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 82f9a6a814ae..e342daa73d1b 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -4169,7 +4169,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
*
* dev pointer to network device structure
*/
-static void hdlcdev_tx_timeout(struct net_device *dev)
+static void hdlcdev_tx_timeout(struct net_device *dev, unsigned int txqueue)
{
MGSLPC_INFO *info = dev_to_port(dev);
unsigned long flags;
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 909e0c3d82ea..cda12933a17d 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -2175,6 +2175,7 @@ const struct file_operations urandom_fops = {
.read = urandom_read,
.write = random_write,
.unlocked_ioctl = random_ioctl,
+ .compat_ioctl = compat_ptr_ioctl,
.fasync = random_fasync,
.llseek = noop_llseek,
};
diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-common.c
index 2ec47a69a2a6..87f449340202 100644
--- a/drivers/char/tpm/tpm-dev-common.c
+++ b/drivers/char/tpm/tpm-dev-common.c
@@ -61,6 +61,12 @@ static void tpm_dev_async_work(struct work_struct *work)
mutex_lock(&priv->buffer_mutex);
priv->command_enqueued = false;
+ ret = tpm_try_get_ops(priv->chip);
+ if (ret) {
+ priv->response_length = ret;
+ goto out;
+ }
+
ret = tpm_dev_transmit(priv->chip, priv->space, priv->data_buffer,
sizeof(priv->data_buffer));
tpm_put_ops(priv->chip);
@@ -68,6 +74,7 @@ static void tpm_dev_async_work(struct work_struct *work)
priv->response_length = ret;
mod_timer(&priv->user_read_timer, jiffies + (120 * HZ));
}
+out:
mutex_unlock(&priv->buffer_mutex);
wake_up_interruptible(&priv->async_wait);
}
@@ -123,7 +130,7 @@ ssize_t tpm_common_read(struct file *file, char __user *buf,
priv->response_read = true;
ret_size = min_t(ssize_t, size, priv->response_length);
- if (!ret_size) {
+ if (ret_size <= 0) {
priv->response_length = 0;
goto out;
}
@@ -204,6 +211,7 @@ ssize_t tpm_common_write(struct file *file, const char __user *buf,
if (file->f_flags & O_NONBLOCK) {
priv->command_enqueued = true;
queue_work(tpm_dev_wq, &priv->async_work);
+ tpm_put_ops(priv->chip);
mutex_unlock(&priv->buffer_mutex);
return size;
}
diff --git a/drivers/char/tpm/tpm-dev.h b/drivers/char/tpm/tpm-dev.h
index 1089fc0bb290..f3742bcc73e3 100644
--- a/drivers/char/tpm/tpm-dev.h
+++ b/drivers/char/tpm/tpm-dev.h
@@ -14,7 +14,7 @@ struct file_priv {
struct work_struct timeout_work;
struct work_struct async_work;
wait_queue_head_t async_wait;
- size_t response_length;
+ ssize_t response_length;
bool response_read;
bool command_enqueued;
diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
index 3b53b3e5ec3e..d52bf4df0bca 100644
--- a/drivers/char/tpm/tpm-sysfs.c
+++ b/drivers/char/tpm/tpm-sysfs.c
@@ -310,7 +310,17 @@ static ssize_t timeouts_show(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR_RO(timeouts);
-static struct attribute *tpm_dev_attrs[] = {
+static ssize_t tpm_version_major_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct tpm_chip *chip = to_tpm_chip(dev);
+
+ return sprintf(buf, "%s\n", chip->flags & TPM_CHIP_FLAG_TPM2
+ ? "2" : "1");
+}
+static DEVICE_ATTR_RO(tpm_version_major);
+
+static struct attribute *tpm1_dev_attrs[] = {
&dev_attr_pubek.attr,
&dev_attr_pcrs.attr,
&dev_attr_enabled.attr,
@@ -321,18 +331,28 @@ static struct attribute *tpm_dev_attrs[] = {
&dev_attr_cancel.attr,
&dev_attr_durations.attr,
&dev_attr_timeouts.attr,
+ &dev_attr_tpm_version_major.attr,
NULL,
};
-static const struct attribute_group tpm_dev_group = {
- .attrs = tpm_dev_attrs,
+static struct attribute *tpm2_dev_attrs[] = {
+ &dev_attr_tpm_version_major.attr,
+ NULL
+};
+
+static const struct attribute_group tpm1_dev_group = {
+ .attrs = tpm1_dev_attrs,
+};
+
+static const struct attribute_group tpm2_dev_group = {
+ .attrs = tpm2_dev_attrs,
};
void tpm_sysfs_add_device(struct tpm_chip *chip)
{
- if (chip->flags & TPM_CHIP_FLAG_TPM2)
- return;
-
WARN_ON(chip->groups_cnt != 0);
- chip->groups[chip->groups_cnt++] = &tpm_dev_group;
+ if (chip->flags & TPM_CHIP_FLAG_TPM2)
+ chip->groups[chip->groups_cnt++] = &tpm2_dev_group;
+ else
+ chip->groups[chip->groups_cnt++] = &tpm1_dev_group;
}
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index b9e1547be6b5..5620747da0cf 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -218,7 +218,6 @@ int tpm2_pcr_read(struct tpm_chip *chip, u32 pcr_idx,
int tpm2_pcr_extend(struct tpm_chip *chip, u32 pcr_idx,
struct tpm_digest *digests);
int tpm2_get_random(struct tpm_chip *chip, u8 *dest, size_t max);
-void tpm2_flush_context(struct tpm_chip *chip, u32 handle);
ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id,
u32 *value, const char *desc);
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index fdb457704aa7..13696deceae8 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -362,6 +362,7 @@ void tpm2_flush_context(struct tpm_chip *chip, u32 handle)
tpm_transmit_cmd(chip, &buf, 0, "flushing context");
tpm_buf_destroy(&buf);
}
+EXPORT_SYMBOL_GPL(tpm2_flush_context);
struct tpm2_get_cap_out {
u8 more_data;
diff --git a/drivers/char/tpm/tpm_ftpm_tee.c b/drivers/char/tpm/tpm_ftpm_tee.c
index 6640a14dbe48..22bf553ccf9d 100644
--- a/drivers/char/tpm/tpm_ftpm_tee.c
+++ b/drivers/char/tpm/tpm_ftpm_tee.c
@@ -32,7 +32,7 @@ static const uuid_t ftpm_ta_uuid =
0x82, 0xCB, 0x34, 0x3F, 0xB7, 0xF3, 0x78, 0x96);
/**
- * ftpm_tee_tpm_op_recv - retrieve fTPM response.
+ * ftpm_tee_tpm_op_recv() - retrieve fTPM response.
* @chip: the tpm_chip description as specified in driver/char/tpm/tpm.h.
* @buf: the buffer to store data.
* @count: the number of bytes to read.
@@ -61,7 +61,7 @@ static int ftpm_tee_tpm_op_recv(struct tpm_chip *chip, u8 *buf, size_t count)
}
/**
- * ftpm_tee_tpm_op_send - send TPM commands through the TEE shared memory.
+ * ftpm_tee_tpm_op_send() - send TPM commands through the TEE shared memory.
* @chip: the tpm_chip description as specified in driver/char/tpm/tpm.h
* @buf: the buffer to send.
* @len: the number of bytes to send.
@@ -208,7 +208,7 @@ static int ftpm_tee_match(struct tee_ioctl_version_data *ver, const void *data)
}
/**
- * ftpm_tee_probe - initialize the fTPM
+ * ftpm_tee_probe() - initialize the fTPM
* @pdev: the platform_device description.
*
* Return:
@@ -298,7 +298,7 @@ out_tee_session:
}
/**
- * ftpm_tee_remove - remove the TPM device
+ * ftpm_tee_remove() - remove the TPM device
* @pdev: the platform_device description.
*
* Return:
@@ -328,6 +328,19 @@ static int ftpm_tee_remove(struct platform_device *pdev)
return 0;
}
+/**
+ * ftpm_tee_shutdown() - shutdown the TPM device
+ * @pdev: the platform_device description.
+ */
+static void ftpm_tee_shutdown(struct platform_device *pdev)
+{
+ struct ftpm_tee_private *pvt_data = dev_get_drvdata(&pdev->dev);
+
+ tee_shm_free(pvt_data->shm);
+ tee_client_close_session(pvt_data->ctx, pvt_data->session);
+ tee_client_close_context(pvt_data->ctx);
+}
+
static const struct of_device_id of_ftpm_tee_ids[] = {
{ .compatible = "microsoft,ftpm" },
{ }
@@ -341,6 +354,7 @@ static struct platform_driver ftpm_tee_driver = {
},
.probe = ftpm_tee_probe,
.remove = ftpm_tee_remove,
+ .shutdown = ftpm_tee_shutdown,
};
module_platform_driver(ftpm_tee_driver);
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index 8af2cee1a762..27c6ca031e23 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -1059,8 +1059,6 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
goto out_err;
}
- tpm_chip_start(chip);
- chip->flags |= TPM_CHIP_FLAG_IRQ;
if (irq) {
tpm_tis_probe_irq_single(chip, intmask, IRQF_SHARED,
irq);
@@ -1070,7 +1068,6 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
} else {
tpm_tis_probe_irq(chip, intmask);
}
- tpm_chip_stop(chip);
}
rc = tpm_chip_register(chip);
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index 4f24e46ebe7c..56db949a7b70 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -15,10 +15,11 @@
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/module.h>
+#include <linux/spinlock.h>
struct ttyprintk_port {
struct tty_port port;
- struct mutex port_write_mutex;
+ spinlock_t spinlock;
};
static struct ttyprintk_port tpk_port;
@@ -99,11 +100,12 @@ static int tpk_open(struct tty_struct *tty, struct file *filp)
static void tpk_close(struct tty_struct *tty, struct file *filp)
{
struct ttyprintk_port *tpkp = tty->driver_data;
+ unsigned long flags;
- mutex_lock(&tpkp->port_write_mutex);
+ spin_lock_irqsave(&tpkp->spinlock, flags);
/* flush tpk_printk buffer */
tpk_printk(NULL, 0);
- mutex_unlock(&tpkp->port_write_mutex);
+ spin_unlock_irqrestore(&tpkp->spinlock, flags);
tty_port_close(&tpkp->port, tty, filp);
}
@@ -115,13 +117,14 @@ static int tpk_write(struct tty_struct *tty,
const unsigned char *buf, int count)
{
struct ttyprintk_port *tpkp = tty->driver_data;
+ unsigned long flags;
int ret;
/* exclusive use of tpk_printk within this tty */
- mutex_lock(&tpkp->port_write_mutex);
+ spin_lock_irqsave(&tpkp->spinlock, flags);
ret = tpk_printk(buf, count);
- mutex_unlock(&tpkp->port_write_mutex);
+ spin_unlock_irqrestore(&tpkp->spinlock, flags);
return ret;
}
@@ -171,7 +174,7 @@ static int __init ttyprintk_init(void)
{
int ret = -ENOMEM;
- mutex_init(&tpk_port.port_write_mutex);
+ spin_lock_init(&tpk_port.spinlock);
ttyprintk_driver = tty_alloc_driver(1,
TTY_DRIVER_RESET_TERMIOS |
diff --git a/drivers/clk/at91/at91sam9260.c b/drivers/clk/at91/at91sam9260.c
index 0aabe49aed09..a9d4234758d7 100644
--- a/drivers/clk/at91/at91sam9260.c
+++ b/drivers/clk/at91/at91sam9260.c
@@ -348,7 +348,7 @@ static void __init at91sam926x_pmc_setup(struct device_node *np,
return;
mainxtal_name = of_clk_get_parent_name(np, i);
- regmap = syscon_node_to_regmap(np);
+ regmap = device_node_to_regmap(np);
if (IS_ERR(regmap))
return;
diff --git a/drivers/clk/at91/at91sam9rl.c b/drivers/clk/at91/at91sam9rl.c
index 0ac34cdaa106..77fe83a73bf4 100644
--- a/drivers/clk/at91/at91sam9rl.c
+++ b/drivers/clk/at91/at91sam9rl.c
@@ -83,7 +83,7 @@ static void __init at91sam9rl_pmc_setup(struct device_node *np)
return;
mainxtal_name = of_clk_get_parent_name(np, i);
- regmap = syscon_node_to_regmap(np);
+ regmap = device_node_to_regmap(np);
if (IS_ERR(regmap))
return;
diff --git a/drivers/clk/at91/at91sam9x5.c b/drivers/clk/at91/at91sam9x5.c
index 0855f3a80cc7..086cf0b4955c 100644
--- a/drivers/clk/at91/at91sam9x5.c
+++ b/drivers/clk/at91/at91sam9x5.c
@@ -146,7 +146,7 @@ static void __init at91sam9x5_pmc_setup(struct device_node *np,
return;
mainxtal_name = of_clk_get_parent_name(np, i);
- regmap = syscon_node_to_regmap(np);
+ regmap = device_node_to_regmap(np);
if (IS_ERR(regmap))
return;
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index 0b03cfae3a9d..b71515acdec1 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -275,7 +275,7 @@ static int __init pmc_register_ops(void)
np = of_find_matching_node(NULL, sama5d2_pmc_dt_ids);
- pmcreg = syscon_node_to_regmap(np);
+ pmcreg = device_node_to_regmap(np);
if (IS_ERR(pmcreg))
return PTR_ERR(pmcreg);
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index 0de1108737db..ff7e3f727082 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -162,7 +162,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
return;
mainxtal_name = of_clk_get_parent_name(np, i);
- regmap = syscon_node_to_regmap(np);
+ regmap = device_node_to_regmap(np);
if (IS_ERR(regmap))
return;
diff --git a/drivers/clk/at91/sama5d4.c b/drivers/clk/at91/sama5d4.c
index 25b156d4e645..a6dee4a3b6e4 100644
--- a/drivers/clk/at91/sama5d4.c
+++ b/drivers/clk/at91/sama5d4.c
@@ -136,7 +136,7 @@ static void __init sama5d4_pmc_setup(struct device_node *np)
return;
mainxtal_name = of_clk_get_parent_name(np, i);
- regmap = syscon_node_to_regmap(np);
+ regmap = device_node_to_regmap(np);
if (IS_ERR(regmap))
return;
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index b68e200829f2..772258de2d1f 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3249,6 +3249,34 @@ static inline void clk_debug_unregister(struct clk_core *core)
}
#endif
+static void clk_core_reparent_orphans_nolock(void)
+{
+ struct clk_core *orphan;
+ struct hlist_node *tmp2;
+
+ /*
+ * walk the list of orphan clocks and reparent any that newly finds a
+ * parent.
+ */
+ hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) {
+ struct clk_core *parent = __clk_init_parent(orphan);
+
+ /*
+ * We need to use __clk_set_parent_before() and _after() to
+ * to properly migrate any prepare/enable count of the orphan
+ * clock. This is important for CLK_IS_CRITICAL clocks, which
+ * are enabled during init but might not have a parent yet.
+ */
+ if (parent) {
+ /* update the clk tree topology */
+ __clk_set_parent_before(orphan, parent);
+ __clk_set_parent_after(orphan, parent, NULL);
+ __clk_recalc_accuracies(orphan);
+ __clk_recalc_rates(orphan, 0);
+ }
+ }
+}
+
/**
* __clk_core_init - initialize the data structures in a struct clk_core
* @core: clk_core being initialized
@@ -3259,8 +3287,6 @@ static inline void clk_debug_unregister(struct clk_core *core)
static int __clk_core_init(struct clk_core *core)
{
int ret;
- struct clk_core *orphan;
- struct hlist_node *tmp2;
unsigned long rate;
if (!core)
@@ -3400,34 +3426,21 @@ static int __clk_core_init(struct clk_core *core)
if (core->flags & CLK_IS_CRITICAL) {
unsigned long flags;
- clk_core_prepare(core);
+ ret = clk_core_prepare(core);
+ if (ret)
+ goto out;
flags = clk_enable_lock();
- clk_core_enable(core);
+ ret = clk_core_enable(core);
clk_enable_unlock(flags);
+ if (ret) {
+ clk_core_unprepare(core);
+ goto out;
+ }
}
- /*
- * walk the list of orphan clocks and reparent any that newly finds a
- * parent.
- */
- hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) {
- struct clk_core *parent = __clk_init_parent(orphan);
+ clk_core_reparent_orphans_nolock();
- /*
- * We need to use __clk_set_parent_before() and _after() to
- * to properly migrate any prepare/enable count of the orphan
- * clock. This is important for CLK_IS_CRITICAL clocks, which
- * are enabled during init but might not have a parent yet.
- */
- if (parent) {
- /* update the clk tree topology */
- __clk_set_parent_before(orphan, parent);
- __clk_set_parent_after(orphan, parent, NULL);
- __clk_recalc_accuracies(orphan);
- __clk_recalc_rates(orphan, 0);
- }
- }
kref_init(&core->ref);
out:
@@ -4179,6 +4192,13 @@ int clk_notifier_unregister(struct clk *clk, struct notifier_block *nb)
EXPORT_SYMBOL_GPL(clk_notifier_unregister);
#ifdef CONFIG_OF
+static void clk_core_reparent_orphans(void)
+{
+ clk_prepare_lock();
+ clk_core_reparent_orphans_nolock();
+ clk_prepare_unlock();
+}
+
/**
* struct of_clk_provider - Clock provider registration structure
* @link: Entry in global list of clock providers
@@ -4274,6 +4294,8 @@ int of_clk_add_provider(struct device_node *np,
mutex_unlock(&of_clk_mutex);
pr_debug("Added clock from %pOF\n", np);
+ clk_core_reparent_orphans();
+
ret = of_clk_set_defaults(np, true);
if (ret < 0)
of_clk_del_provider(np);
@@ -4309,6 +4331,8 @@ int of_clk_add_hw_provider(struct device_node *np,
mutex_unlock(&of_clk_mutex);
pr_debug("Added clk_hw provider from %pOF\n", np);
+ clk_core_reparent_orphans();
+
ret = of_clk_set_defaults(np, true);
if (ret < 0)
of_clk_del_provider(np);
diff --git a/drivers/clk/imx/clk-composite-8m.c b/drivers/clk/imx/clk-composite-8m.c
index 388bdb94f841..d3486ee79ab5 100644
--- a/drivers/clk/imx/clk-composite-8m.c
+++ b/drivers/clk/imx/clk-composite-8m.c
@@ -142,6 +142,7 @@ struct clk *imx8m_clk_composite_flags(const char *name,
mux->reg = reg;
mux->shift = PCG_PCS_SHIFT;
mux->mask = PCG_PCS_MASK;
+ mux->lock = &imx_ccm_lock;
div = kzalloc(sizeof(*div), GFP_KERNEL);
if (!div)
@@ -161,6 +162,7 @@ struct clk *imx8m_clk_composite_flags(const char *name,
gate_hw = &gate->hw;
gate->reg = reg;
gate->bit_idx = PCG_CGC_SHIFT;
+ gate->lock = &imx_ccm_lock;
hw = clk_hw_register_composite(NULL, name, parent_names, num_parents,
mux_hw, &clk_mux_ops, div_hw,
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 3fdf3d494f0a..281191b55b3a 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -40,6 +40,7 @@ static const struct clk_div_table ulp_div_table[] = {
{ .val = 5, .div = 16, },
{ .val = 6, .div = 32, },
{ .val = 7, .div = 64, },
+ { /* sentinel */ },
};
static const int pcc2_uart_clk_ids[] __initconst = {
diff --git a/drivers/clk/imx/clk-pll14xx.c b/drivers/clk/imx/clk-pll14xx.c
index 5c458199060a..3636c8035c7d 100644
--- a/drivers/clk/imx/clk-pll14xx.c
+++ b/drivers/clk/imx/clk-pll14xx.c
@@ -159,7 +159,7 @@ static int clk_pll14xx_wait_lock(struct clk_pll14xx *pll)
{
u32 val;
- return readl_poll_timeout(pll->base, val, val & LOCK_TIMEOUT_US, 0,
+ return readl_poll_timeout(pll->base, val, val & LOCK_STATUS, 0,
LOCK_TIMEOUT_US);
}
diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c
index a60a1be937ad..b4a95cbbda98 100644
--- a/drivers/clk/mmp/clk-of-mmp2.c
+++ b/drivers/clk/mmp/clk-of-mmp2.c
@@ -134,7 +134,7 @@ static DEFINE_SPINLOCK(ssp3_lock);
static const char *ssp_parent_names[] = {"vctcxo_4", "vctcxo_2", "vctcxo", "pll1_16"};
static DEFINE_SPINLOCK(timer_lock);
-static const char *timer_parent_names[] = {"clk32", "vctcxo_2", "vctcxo_4", "vctcxo"};
+static const char *timer_parent_names[] = {"clk32", "vctcxo_4", "vctcxo_2", "vctcxo"};
static DEFINE_SPINLOCK(reset_lock);
diff --git a/drivers/clk/qcom/gcc-sc7180.c b/drivers/clk/qcom/gcc-sc7180.c
index 38424e63bcae..7f59fb8da033 100644
--- a/drivers/clk/qcom/gcc-sc7180.c
+++ b/drivers/clk/qcom/gcc-sc7180.c
@@ -2186,7 +2186,8 @@ static struct gdsc hlos1_vote_mmnoc_mmu_tbu_hf0_gdsc = {
.pd = {
.name = "hlos1_vote_mmnoc_mmu_tbu_hf0_gdsc",
},
- .pwrsts = PWRSTS_OFF_ON | VOTABLE,
+ .pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc hlos1_vote_mmnoc_mmu_tbu_sf_gdsc = {
@@ -2194,7 +2195,8 @@ static struct gdsc hlos1_vote_mmnoc_mmu_tbu_sf_gdsc = {
.pd = {
.name = "hlos1_vote_mmnoc_mmu_tbu_sf_gdsc",
},
- .pwrsts = PWRSTS_OFF_ON | VOTABLE,
+ .pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc *gcc_sc7180_gdscs[] = {
diff --git a/drivers/clk/qcom/gcc-sdm845.c b/drivers/clk/qcom/gcc-sdm845.c
index f7b370f3acef..f6ce888098be 100644
--- a/drivers/clk/qcom/gcc-sdm845.c
+++ b/drivers/clk/qcom/gcc-sdm845.c
@@ -3255,6 +3255,7 @@ static struct gdsc hlos1_vote_aggre_noc_mmu_audio_tbu_gdsc = {
.name = "hlos1_vote_aggre_noc_mmu_audio_tbu_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc hlos1_vote_aggre_noc_mmu_pcie_tbu_gdsc = {
@@ -3263,6 +3264,7 @@ static struct gdsc hlos1_vote_aggre_noc_mmu_pcie_tbu_gdsc = {
.name = "hlos1_vote_aggre_noc_mmu_pcie_tbu_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc hlos1_vote_aggre_noc_mmu_tbu1_gdsc = {
@@ -3271,6 +3273,7 @@ static struct gdsc hlos1_vote_aggre_noc_mmu_tbu1_gdsc = {
.name = "hlos1_vote_aggre_noc_mmu_tbu1_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc hlos1_vote_aggre_noc_mmu_tbu2_gdsc = {
@@ -3279,6 +3282,7 @@ static struct gdsc hlos1_vote_aggre_noc_mmu_tbu2_gdsc = {
.name = "hlos1_vote_aggre_noc_mmu_tbu2_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc hlos1_vote_mmnoc_mmu_tbu_hf0_gdsc = {
@@ -3287,6 +3291,7 @@ static struct gdsc hlos1_vote_mmnoc_mmu_tbu_hf0_gdsc = {
.name = "hlos1_vote_mmnoc_mmu_tbu_hf0_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc hlos1_vote_mmnoc_mmu_tbu_hf1_gdsc = {
@@ -3295,6 +3300,7 @@ static struct gdsc hlos1_vote_mmnoc_mmu_tbu_hf1_gdsc = {
.name = "hlos1_vote_mmnoc_mmu_tbu_hf1_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc hlos1_vote_mmnoc_mmu_tbu_sf_gdsc = {
@@ -3303,6 +3309,7 @@ static struct gdsc hlos1_vote_mmnoc_mmu_tbu_sf_gdsc = {
.name = "hlos1_vote_mmnoc_mmu_tbu_sf_gdsc",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct clk_regmap *gcc_sdm845_clocks[] = {
diff --git a/drivers/clk/qcom/gpucc-msm8998.c b/drivers/clk/qcom/gpucc-msm8998.c
index e5e2492b20c5..9b3923af02a1 100644
--- a/drivers/clk/qcom/gpucc-msm8998.c
+++ b/drivers/clk/qcom/gpucc-msm8998.c
@@ -242,10 +242,12 @@ static struct clk_branch gfx3d_isense_clk = {
static struct gdsc gpu_cx_gdsc = {
.gdscr = 0x1004,
+ .gds_hw_ctrl = 0x1008,
.pd = {
.name = "gpu_cx",
},
.pwrsts = PWRSTS_OFF_ON,
+ .flags = VOTABLE,
};
static struct gdsc gpu_gx_gdsc = {
diff --git a/drivers/clk/renesas/clk-rz.c b/drivers/clk/renesas/clk-rz.c
index fbc34beafc78..7b703f14e20b 100644
--- a/drivers/clk/renesas/clk-rz.c
+++ b/drivers/clk/renesas/clk-rz.c
@@ -37,8 +37,8 @@ static u16 __init rz_cpg_read_mode_pins(void)
void __iomem *ppr0, *pibc0;
u16 modes;
- ppr0 = ioremap_nocache(PPR0, 2);
- pibc0 = ioremap_nocache(PIBC0, 2);
+ ppr0 = ioremap(PPR0, 2);
+ pibc0 = ioremap(PIBC0, 2);
BUG_ON(!ppr0 || !pibc0);
iowrite16(4, pibc0); /* enable input buffer */
modes = ioread16(ppr0);
diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 3a991ca1ee36..c9e5a1fb6653 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -12,6 +12,7 @@
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/clk.h>
#include "clk.h"
#include "clk-cpu.h"
@@ -1646,6 +1647,13 @@ static void __init exynos5x_clk_init(struct device_node *np,
exynos5x_subcmus);
}
+ /*
+ * Keep top part of G3D clock path enabled permanently to ensure
+ * that the internal busses get their clock regardless of the
+ * main G3D clock enablement status.
+ */
+ clk_prepare_enable(__clk_lookup("mout_sw_aclk_g3d"));
+
samsung_clk_of_add_provider(np, ctx);
}
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c
index 45a1ed3fe674..50f8d1bc7046 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6-r.c
@@ -23,9 +23,9 @@
*/
static const char * const ar100_r_apb2_parents[] = { "osc24M", "osc32k",
- "pll-periph0", "iosc" };
+ "iosc", "pll-periph0" };
static const struct ccu_mux_var_prediv ar100_r_apb2_predivs[] = {
- { .index = 2, .shift = 0, .width = 5 },
+ { .index = 3, .shift = 0, .width = 5 },
};
static struct ccu_div ar100_clk = {
@@ -51,17 +51,7 @@ static struct ccu_div ar100_clk = {
static CLK_FIXED_FACTOR_HW(r_ahb_clk, "r-ahb", &ar100_clk.common.hw, 1, 1, 0);
-static struct ccu_div r_apb1_clk = {
- .div = _SUNXI_CCU_DIV(0, 2),
-
- .common = {
- .reg = 0x00c,
- .hw.init = CLK_HW_INIT("r-apb1",
- "r-ahb",
- &ccu_div_ops,
- 0),
- },
-};
+static SUNXI_CCU_M(r_apb1_clk, "r-apb1", "r-ahb", 0x00c, 0, 2, 0);
static struct ccu_div r_apb2_clk = {
.div = _SUNXI_CCU_DIV_FLAGS(8, 2, CLK_DIVIDER_POWER_OF_TWO),
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r.c b/drivers/clk/sunxi-ng/ccu-sun8i-r.c
index 4646fdc61053..4c8c491b87c2 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-r.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-r.c
@@ -51,19 +51,7 @@ static struct ccu_div ar100_clk = {
static CLK_FIXED_FACTOR_HW(ahb0_clk, "ahb0", &ar100_clk.common.hw, 1, 1, 0);
-static struct ccu_div apb0_clk = {
- .div = _SUNXI_CCU_DIV_FLAGS(0, 2, CLK_DIVIDER_POWER_OF_TWO),
-
- .common = {
- .reg = 0x0c,
- .hw.init = CLK_HW_INIT_HW("apb0",
- &ahb0_clk.hw,
- &ccu_div_ops,
- 0),
- },
-};
-
-static SUNXI_CCU_M(a83t_apb0_clk, "apb0", "ahb0", 0x0c, 0, 2, 0);
+static SUNXI_CCU_M(apb0_clk, "apb0", "ahb0", 0x0c, 0, 2, 0);
/*
* Define the parent as an array that can be reused to save space
@@ -127,7 +115,7 @@ static struct ccu_mp a83t_ir_clk = {
static struct ccu_common *sun8i_a83t_r_ccu_clks[] = {
&ar100_clk.common,
- &a83t_apb0_clk.common,
+ &apb0_clk.common,
&apb0_pio_clk.common,
&apb0_ir_clk.common,
&apb0_timer_clk.common,
@@ -167,7 +155,7 @@ static struct clk_hw_onecell_data sun8i_a83t_r_hw_clks = {
.hws = {
[CLK_AR100] = &ar100_clk.common.hw,
[CLK_AHB0] = &ahb0_clk.hw,
- [CLK_APB0] = &a83t_apb0_clk.common.hw,
+ [CLK_APB0] = &apb0_clk.common.hw,
[CLK_APB0_PIO] = &apb0_pio_clk.common.hw,
[CLK_APB0_IR] = &apb0_ir_clk.common.hw,
[CLK_APB0_TIMER] = &apb0_timer_clk.common.hw,
@@ -282,9 +270,6 @@ static void __init sunxi_r_ccu_init(struct device_node *node,
static void __init sun8i_a83t_r_ccu_setup(struct device_node *node)
{
- /* Fix apb0 bus gate parents here */
- apb0_gate_parent[0] = &a83t_apb0_clk.common.hw;
-
sunxi_r_ccu_init(node, &sun8i_a83t_r_ccu_desc);
}
CLK_OF_DECLARE(sun8i_a83t_r_ccu, "allwinner,sun8i-a83t-r-ccu",
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
index 897490800102..23bfe1d12f21 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
@@ -761,7 +761,8 @@ static struct ccu_mp outa_clk = {
.reg = 0x1f0,
.features = CCU_FEATURE_FIXED_PREDIV,
.hw.init = CLK_HW_INIT_PARENTS("outa", out_parents,
- &ccu_mp_ops, 0),
+ &ccu_mp_ops,
+ CLK_SET_RATE_PARENT),
}
};
@@ -779,7 +780,8 @@ static struct ccu_mp outb_clk = {
.reg = 0x1f4,
.features = CCU_FEATURE_FIXED_PREDIV,
.hw.init = CLK_HW_INIT_PARENTS("outb", out_parents,
- &ccu_mp_ops, 0),
+ &ccu_mp_ops,
+ CLK_SET_RATE_PARENT),
}
};
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c
index 5c779eec454b..0e36ca3bf3d5 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.c
@@ -618,7 +618,7 @@ static struct clk_hw_onecell_data sun8i_v3s_hw_clks = {
[CLK_MBUS] = &mbus_clk.common.hw,
[CLK_MIPI_CSI] = &mipi_csi_clk.common.hw,
},
- .num = CLK_NUMBER,
+ .num = CLK_PLL_DDR1 + 1,
};
static struct clk_hw_onecell_data sun8i_v3_hw_clks = {
@@ -700,7 +700,7 @@ static struct clk_hw_onecell_data sun8i_v3_hw_clks = {
[CLK_MBUS] = &mbus_clk.common.hw,
[CLK_MIPI_CSI] = &mipi_csi_clk.common.hw,
},
- .num = CLK_NUMBER,
+ .num = CLK_I2S0 + 1,
};
static struct ccu_reset_map sun8i_v3s_ccu_resets[] = {
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h
index b0160d305a67..108eeeedcbf7 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-v3s.h
@@ -51,6 +51,4 @@
#define CLK_PLL_DDR1 74
-#define CLK_NUMBER (CLK_I2S0 + 1)
-
#endif /* _CCU_SUN8I_H3_H_ */
diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c
index e6bd6d1ea012..f6cdce441cf7 100644
--- a/drivers/clk/tegra/clk.c
+++ b/drivers/clk/tegra/clk.c
@@ -231,8 +231,10 @@ struct clk ** __init tegra_clk_init(void __iomem *regs, int num, int banks)
periph_banks = banks;
clks = kcalloc(num, sizeof(struct clk *), GFP_KERNEL);
- if (!clks)
+ if (!clks) {
kfree(periph_clk_enb_refcnt);
+ return NULL;
+ }
clk_num = num;
diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c
index f65e16c4f3c4..8d4c08b034bd 100644
--- a/drivers/clk/ti/clk-dra7-atl.c
+++ b/drivers/clk/ti/clk-dra7-atl.c
@@ -233,7 +233,6 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
cinfo->iobase = of_iomap(node, 0);
cinfo->dev = &pdev->dev;
pm_runtime_enable(cinfo->dev);
- pm_runtime_irq_safe(cinfo->dev);
pm_runtime_get_sync(cinfo->dev);
atl_write(cinfo, DRA7_ATL_PCLKMUX_REG(0), DRA7_ATL_PCLKMUX);
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 5fdd76cb1768..cc909e465823 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -88,7 +88,7 @@ config ROCKCHIP_TIMER
select TIMER_OF
select CLKSRC_MMIO
help
- Enables the support for the rockchip timer driver.
+ Enables the support for the Rockchip timer driver.
config ARMADA_370_XP_TIMER
bool "Armada 370 and XP timer driver" if COMPILE_TEST
@@ -162,13 +162,13 @@ config NPCM7XX_TIMER
select CLKSRC_MMIO
help
Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture,
- While TIMER0 serves as clockevent and TIMER1 serves as clocksource.
+ where TIMER0 serves as clockevent and TIMER1 serves as clocksource.
config CADENCE_TTC_TIMER
bool "Cadence TTC timer driver" if COMPILE_TEST
depends on COMMON_CLK
help
- Enables support for the cadence ttc driver.
+ Enables support for the Cadence TTC driver.
config ASM9260_TIMER
bool "ASM9260 timer driver" if COMPILE_TEST
@@ -190,10 +190,10 @@ config CLKSRC_DBX500_PRCMU
bool "Clocksource PRCMU Timer" if COMPILE_TEST
depends on HAS_IOMEM
help
- Use the always on PRCMU Timer as clocksource
+ Use the always on PRCMU Timer as clocksource.
config CLPS711X_TIMER
- bool "Cirrus logic timer driver" if COMPILE_TEST
+ bool "Cirrus Logic timer driver" if COMPILE_TEST
select CLKSRC_MMIO
help
Enables support for the Cirrus Logic PS711 timer.
@@ -205,11 +205,11 @@ config ATLAS7_TIMER
Enables support for the Atlas7 timer.
config MXS_TIMER
- bool "Mxs timer driver" if COMPILE_TEST
+ bool "MXS timer driver" if COMPILE_TEST
select CLKSRC_MMIO
select STMP_DEVICE
help
- Enables support for the Mxs timer.
+ Enables support for the MXS timer.
config PRIMA2_TIMER
bool "Prima2 timer driver" if COMPILE_TEST
@@ -238,10 +238,10 @@ config KEYSTONE_TIMER
Enables support for the Keystone timer.
config INTEGRATOR_AP_TIMER
- bool "Integrator-ap timer driver" if COMPILE_TEST
+ bool "Integrator-AP timer driver" if COMPILE_TEST
select CLKSRC_MMIO
help
- Enables support for the Integrator-ap timer.
+ Enables support for the Integrator-AP timer.
config CLKSRC_EFM32
bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
@@ -283,8 +283,8 @@ config CLKSRC_NPS
select TIMER_OF if OF
help
NPS400 clocksource support.
- Got 64 bit counter with update rate up to 1000MHz.
- This counter is accessed via couple of 32 bit memory mapped registers.
+ It has a 64-bit counter with update rate up to 1000MHz.
+ This counter is accessed via couple of 32-bit memory-mapped registers.
config CLKSRC_STM32
bool "Clocksource for STM32 SoCs" if !ARCH_STM32
@@ -305,14 +305,14 @@ config ARC_TIMERS
help
These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
(ARC700 as well as ARC HS38).
- TIMER0 serves as clockevent while TIMER1 provides clocksource
+ TIMER0 serves as clockevent while TIMER1 provides clocksource.
config ARC_TIMERS_64BIT
bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
depends on ARC_TIMERS
select TIMER_OF
help
- This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP)
+ This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP).
RTC is implemented inside the core, while GFRC sits outside the core in
ARConnect IP block. Driver automatically picks one of them for clocksource
as appropriate.
@@ -390,7 +390,7 @@ config ARM_GLOBAL_TIMER
select TIMER_OF if OF
depends on ARM
help
- This options enables support for the ARM global timer unit
+ This option enables support for the ARM global timer unit.
config ARM_TIMER_SP804
bool "Support for Dual Timer SP804 module" if COMPILE_TEST
@@ -403,14 +403,14 @@ config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
depends on ARM_GLOBAL_TIMER
default y
help
- Use ARM global timer clock source as sched_clock
+ Use ARM global timer clock source as sched_clock.
config ARMV7M_SYSTICK
bool "Support for the ARMv7M system time" if COMPILE_TEST
select TIMER_OF if OF
select CLKSRC_MMIO
help
- This options enables support for the ARMv7M system timer unit
+ This option enables support for the ARMv7M system timer unit.
config ATMEL_PIT
bool "Atmel PIT support" if COMPILE_TEST
@@ -460,7 +460,7 @@ config VF_PIT_TIMER
bool
select CLKSRC_MMIO
help
- Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
+ Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs.
config OXNAS_RPS_TIMER
bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
@@ -470,7 +470,7 @@ config OXNAS_RPS_TIMER
This enables support for the Oxford Semiconductor OXNAS RPS timers.
config SYS_SUPPORTS_SH_CMT
- bool
+ bool
config MTK_TIMER
bool "Mediatek timer driver" if COMPILE_TEST
@@ -490,13 +490,13 @@ config SPRD_TIMER
Enables support for the Spreadtrum timer driver.
config SYS_SUPPORTS_SH_MTU2
- bool
+ bool
config SYS_SUPPORTS_SH_TMU
- bool
+ bool
config SYS_SUPPORTS_EM_STI
- bool
+ bool
config CLKSRC_JCORE_PIT
bool "J-Core PIT timer driver" if COMPILE_TEST
@@ -523,7 +523,7 @@ config SH_TIMER_MTU2
help
This enables build of a clockevent driver for the Multi-Function
Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
- This hardware comes with 16 bit-timer registers.
+ This hardware comes with 16-bit timer registers.
config RENESAS_OSTM
bool "Renesas OSTM timer driver" if COMPILE_TEST
@@ -580,7 +580,7 @@ config CLKSRC_TANGO_XTAL
select TIMER_OF
select CLKSRC_MMIO
help
- This enables the clocksource for Tango SoC
+ This enables the clocksource for Tango SoC.
config CLKSRC_PXA
bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
@@ -591,24 +591,24 @@ config CLKSRC_PXA
platforms.
config H8300_TMR8
- bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
- depends on HAS_IOMEM
+ bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
+ depends on HAS_IOMEM
help
This enables the 8 bits timer for the H8300 platform.
config H8300_TMR16
- bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
- depends on HAS_IOMEM
+ bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
+ depends on HAS_IOMEM
help
This enables the 16 bits timer for the H8300 platform with the
- H83069 cpu.
+ H83069 CPU.
config H8300_TPU
- bool "Clocksource for the H8300 platform" if COMPILE_TEST
- depends on HAS_IOMEM
+ bool "Clocksource for the H8300 platform" if COMPILE_TEST
+ depends on HAS_IOMEM
help
This enables the clocksource for the H8300 platform with the
- H8S2678 cpu.
+ H8S2678 CPU.
config CLKSRC_IMX_GPT
bool "Clocksource using i.MX GPT" if COMPILE_TEST
@@ -666,8 +666,8 @@ config CSKY_MP_TIMER
help
Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP
system.
- csky,mptimer is not only used in SMP system, it also could be used
- single core system. It's not a mmio reg and it use mtcr/mfcr instruction.
+ csky,mptimer is not only used in SMP system, it also could be used in
+ single core system. It's not a mmio reg and it uses mtcr/mfcr instruction.
config GX6605S_TIMER
bool "Gx6605s SOC system timer driver" if COMPILE_TEST
@@ -697,4 +697,14 @@ config INGENIC_TIMER
help
Support for the timer/counter unit of the Ingenic JZ SoCs.
+config MICROCHIP_PIT64B
+ bool "Microchip PIT64B support"
+ depends on OF || COMPILE_TEST
+ select CLKSRC_MMIO
+ help
+ This option enables Microchip PIT64B timer for Atmel
+ based system. It supports the oneshot, the periodic
+ modes and high resolution. It is used as a clocksource
+ and a clockevent.
+
endmenu
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 4dfe4225ece7..713686faa549 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -88,3 +88,4 @@ obj-$(CONFIG_RISCV_TIMER) += timer-riscv.o
obj-$(CONFIG_CSKY_MP_TIMER) += timer-mp-csky.o
obj-$(CONFIG_GX6605S_TIMER) += timer-gx6605s.o
obj-$(CONFIG_HYPERV_TIMER) += hyperv_timer.o
+obj-$(CONFIG_MICROCHIP_PIT64B) += timer-microchip-pit64b.o
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index 2b196cbfadb6..b235f446ee50 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -121,7 +121,7 @@ static int __init bcm2835_timer_init(struct device_node *node)
ret = setup_irq(irq, &timer->act);
if (ret) {
pr_err("Can't set up timer IRQ\n");
- goto err_iounmap;
+ goto err_timer_free;
}
clockevents_config_and_register(&timer->evt, freq, 0xf, 0xffffffff);
@@ -130,6 +130,9 @@ static int __init bcm2835_timer_init(struct device_node *node)
return 0;
+err_timer_free:
+ kfree(timer);
+
err_iounmap:
iounmap(base);
return ret;
diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index 9039df4f90e2..ab190dffb1ed 100644
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -279,9 +279,7 @@ static void em_sti_register_clockevent(struct em_sti_priv *p)
static int em_sti_probe(struct platform_device *pdev)
{
struct em_sti_priv *p;
- struct resource *res;
- int irq;
- int ret;
+ int irq, ret;
p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
if (p == NULL)
@@ -295,8 +293,7 @@ static int em_sti_probe(struct platform_device *pdev)
return irq;
/* map memory, let base point to the STI instance */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- p->base = devm_ioremap_resource(&pdev->dev, res);
+ p->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(p->base))
return PTR_ERR(p->base);
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index 74cb299f5089..a267fe31ef13 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -4,7 +4,7 @@
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
- * EXYNOS4 MCT(Multi-Core Timer) support
+ * Exynos4 MCT(Multi-Core Timer) support
*/
#include <linux/interrupt.h>
diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c
index 287d8d58c21a..9d808d595ca8 100644
--- a/drivers/clocksource/hyperv_timer.c
+++ b/drivers/clocksource/hyperv_timer.c
@@ -66,7 +66,7 @@ static int hv_ce_set_next_event(unsigned long delta,
{
u64 current_tick;
- current_tick = hyperv_cs->read(NULL);
+ current_tick = hv_read_reference_counter();
current_tick += delta;
hv_init_timer(0, current_tick);
return 0;
@@ -302,22 +302,33 @@ EXPORT_SYMBOL_GPL(hv_stimer_global_cleanup);
* the other that uses the TSC reference page feature as defined in the
* TLFS. The MSR version is for compatibility with old versions of
* Hyper-V and 32-bit x86. The TSC reference page version is preferred.
+ *
+ * The Hyper-V clocksource ratings of 250 are chosen to be below the
+ * TSC clocksource rating of 300. In configurations where Hyper-V offers
+ * an InvariantTSC, the TSC is not marked "unstable", so the TSC clocksource
+ * is available and preferred. With the higher rating, it will be the
+ * default. On older hardware and Hyper-V versions, the TSC is marked
+ * "unstable", so no TSC clocksource is created and the selected Hyper-V
+ * clocksource will be the default.
*/
-struct clocksource *hyperv_cs;
-EXPORT_SYMBOL_GPL(hyperv_cs);
+u64 (*hv_read_reference_counter)(void);
+EXPORT_SYMBOL_GPL(hv_read_reference_counter);
-static struct ms_hyperv_tsc_page tsc_pg __aligned(PAGE_SIZE);
+static union {
+ struct ms_hyperv_tsc_page page;
+ u8 reserved[PAGE_SIZE];
+} tsc_pg __aligned(PAGE_SIZE);
struct ms_hyperv_tsc_page *hv_get_tsc_page(void)
{
- return &tsc_pg;
+ return &tsc_pg.page;
}
EXPORT_SYMBOL_GPL(hv_get_tsc_page);
-static u64 notrace read_hv_clock_tsc(struct clocksource *arg)
+static u64 notrace read_hv_clock_tsc(void)
{
- u64 current_tick = hv_read_tsc_page(&tsc_pg);
+ u64 current_tick = hv_read_tsc_page(hv_get_tsc_page());
if (current_tick == U64_MAX)
hv_get_time_ref_count(current_tick);
@@ -325,20 +336,50 @@ static u64 notrace read_hv_clock_tsc(struct clocksource *arg)
return current_tick;
}
+static u64 notrace read_hv_clock_tsc_cs(struct clocksource *arg)
+{
+ return read_hv_clock_tsc();
+}
+
static u64 read_hv_sched_clock_tsc(void)
{
- return read_hv_clock_tsc(NULL) - hv_sched_clock_offset;
+ return read_hv_clock_tsc() - hv_sched_clock_offset;
+}
+
+static void suspend_hv_clock_tsc(struct clocksource *arg)
+{
+ u64 tsc_msr;
+
+ /* Disable the TSC page */
+ hv_get_reference_tsc(tsc_msr);
+ tsc_msr &= ~BIT_ULL(0);
+ hv_set_reference_tsc(tsc_msr);
+}
+
+
+static void resume_hv_clock_tsc(struct clocksource *arg)
+{
+ phys_addr_t phys_addr = virt_to_phys(&tsc_pg);
+ u64 tsc_msr;
+
+ /* Re-enable the TSC page */
+ hv_get_reference_tsc(tsc_msr);
+ tsc_msr &= GENMASK_ULL(11, 0);
+ tsc_msr |= BIT_ULL(0) | (u64)phys_addr;
+ hv_set_reference_tsc(tsc_msr);
}
static struct clocksource hyperv_cs_tsc = {
.name = "hyperv_clocksource_tsc_page",
- .rating = 400,
- .read = read_hv_clock_tsc,
+ .rating = 250,
+ .read = read_hv_clock_tsc_cs,
.mask = CLOCKSOURCE_MASK(64),
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
+ .suspend= suspend_hv_clock_tsc,
+ .resume = resume_hv_clock_tsc,
};
-static u64 notrace read_hv_clock_msr(struct clocksource *arg)
+static u64 notrace read_hv_clock_msr(void)
{
u64 current_tick;
/*
@@ -350,15 +391,20 @@ static u64 notrace read_hv_clock_msr(struct clocksource *arg)
return current_tick;
}
+static u64 notrace read_hv_clock_msr_cs(struct clocksource *arg)
+{
+ return read_hv_clock_msr();
+}
+
static u64 read_hv_sched_clock_msr(void)
{
- return read_hv_clock_msr(NULL) - hv_sched_clock_offset;
+ return read_hv_clock_msr() - hv_sched_clock_offset;
}
static struct clocksource hyperv_cs_msr = {
.name = "hyperv_clocksource_msr",
- .rating = 400,
- .read = read_hv_clock_msr,
+ .rating = 250,
+ .read = read_hv_clock_msr_cs,
.mask = CLOCKSOURCE_MASK(64),
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
@@ -371,8 +417,8 @@ static bool __init hv_init_tsc_clocksource(void)
if (!(ms_hyperv.features & HV_MSR_REFERENCE_TSC_AVAILABLE))
return false;
- hyperv_cs = &hyperv_cs_tsc;
- phys_addr = virt_to_phys(&tsc_pg);
+ hv_read_reference_counter = read_hv_clock_tsc;
+ phys_addr = virt_to_phys(hv_get_tsc_page());
/*
* The Hyper-V TLFS specifies to preserve the value of reserved
@@ -389,7 +435,7 @@ static bool __init hv_init_tsc_clocksource(void)
hv_set_clocksource_vdso(hyperv_cs_tsc);
clocksource_register_hz(&hyperv_cs_tsc, NSEC_PER_SEC/100);
- hv_sched_clock_offset = hyperv_cs->read(hyperv_cs);
+ hv_sched_clock_offset = hv_read_reference_counter();
hv_setup_sched_clock(read_hv_sched_clock_tsc);
return true;
@@ -411,10 +457,10 @@ void __init hv_init_clocksource(void)
if (!(ms_hyperv.features & HV_MSR_TIME_REF_COUNT_AVAILABLE))
return;
- hyperv_cs = &hyperv_cs_msr;
+ hv_read_reference_counter = read_hv_clock_msr;
clocksource_register_hz(&hyperv_cs_msr, NSEC_PER_SEC/100);
- hv_sched_clock_offset = hyperv_cs->read(hyperv_cs);
+ hv_sched_clock_offset = hv_read_reference_counter();
hv_setup_sched_clock(read_hv_sched_clock_msr);
}
EXPORT_SYMBOL_GPL(hv_init_clocksource);
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 9cde50cb3220..12ac75f7571f 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -905,7 +905,7 @@ static int sh_cmt_map_memory(struct sh_cmt_device *cmt)
return -ENXIO;
}
- cmt->mapbase = ioremap_nocache(mem->start, resource_size(mem));
+ cmt->mapbase = ioremap(mem->start, resource_size(mem));
if (cmt->mapbase == NULL) {
dev_err(&cmt->pdev->dev, "failed to remap I/O memory\n");
return -ENXIO;
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index 64526e50d471..bfccb31e94ad 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -377,7 +377,7 @@ static int sh_mtu2_map_memory(struct sh_mtu2_device *mtu)
return -ENXIO;
}
- mtu->mapbase = ioremap_nocache(res->start, resource_size(res));
+ mtu->mapbase = ioremap(res->start, resource_size(res));
if (mtu->mapbase == NULL)
return -ENXIO;
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index d49690d15536..d41df9ba3725 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -486,7 +486,7 @@ static int sh_tmu_map_memory(struct sh_tmu_device *tmu)
return -ENXIO;
}
- tmu->mapbase = ioremap_nocache(res->start, resource_size(res));
+ tmu->mapbase = ioremap(res->start, resource_size(res));
if (tmu->mapbase == NULL)
return -ENXIO;
diff --git a/drivers/clocksource/timer-cadence-ttc.c b/drivers/clocksource/timer-cadence-ttc.c
index 88fe2e9ba9a3..38858e141731 100644
--- a/drivers/clocksource/timer-cadence-ttc.c
+++ b/drivers/clocksource/timer-cadence-ttc.c
@@ -15,6 +15,8 @@
#include <linux/of_irq.h>
#include <linux/slab.h>
#include <linux/sched_clock.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
/*
* This driver configures the 2 16/32-bit count-up timers as follows:
@@ -464,13 +466,7 @@ static int __init ttc_setup_clockevent(struct clk *clk,
return 0;
}
-/**
- * ttc_timer_init - Initialize the timer
- *
- * Initializes the timer hardware and register the clock source and clock event
- * timers with Linux kernal timer framework
- */
-static int __init ttc_timer_init(struct device_node *timer)
+static int __init ttc_timer_probe(struct platform_device *pdev)
{
unsigned int irq;
void __iomem *timer_baseaddr;
@@ -478,6 +474,7 @@ static int __init ttc_timer_init(struct device_node *timer)
static int initialized;
int clksel, ret;
u32 timer_width = 16;
+ struct device_node *timer = pdev->dev.of_node;
if (initialized)
return 0;
@@ -532,4 +529,17 @@ static int __init ttc_timer_init(struct device_node *timer)
return 0;
}
-TIMER_OF_DECLARE(ttc, "cdns,ttc", ttc_timer_init);
+static const struct of_device_id ttc_timer_of_match[] = {
+ {.compatible = "cdns,ttc"},
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, ttc_timer_of_match);
+
+static struct platform_driver ttc_timer_driver = {
+ .driver = {
+ .name = "cdns_ttc_timer",
+ .of_match_table = ttc_timer_of_match,
+ },
+};
+builtin_platform_driver_probe(ttc_timer_driver, ttc_timer_probe);
diff --git a/drivers/clocksource/timer-microchip-pit64b.c b/drivers/clocksource/timer-microchip-pit64b.c
new file mode 100644
index 000000000000..bd63d3484838
--- /dev/null
+++ b/drivers/clocksource/timer-microchip-pit64b.c
@@ -0,0 +1,451 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * 64-bit Periodic Interval Timer driver
+ *
+ * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Claudiu Beznea <claudiu.beznea@microchip.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/clockchips.h>
+#include <linux/interrupt.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/sched_clock.h>
+#include <linux/slab.h>
+
+#define MCHP_PIT64B_CR 0x00 /* Control Register */
+#define MCHP_PIT64B_CR_START BIT(0)
+#define MCHP_PIT64B_CR_SWRST BIT(8)
+
+#define MCHP_PIT64B_MR 0x04 /* Mode Register */
+#define MCHP_PIT64B_MR_CONT BIT(0)
+#define MCHP_PIT64B_MR_ONE_SHOT (0)
+#define MCHP_PIT64B_MR_SGCLK BIT(3)
+#define MCHP_PIT64B_MR_PRES GENMASK(11, 8)
+
+#define MCHP_PIT64B_LSB_PR 0x08 /* LSB Period Register */
+
+#define MCHP_PIT64B_MSB_PR 0x0C /* MSB Period Register */
+
+#define MCHP_PIT64B_IER 0x10 /* Interrupt Enable Register */
+#define MCHP_PIT64B_IER_PERIOD BIT(0)
+
+#define MCHP_PIT64B_ISR 0x1C /* Interrupt Status Register */
+
+#define MCHP_PIT64B_TLSBR 0x20 /* Timer LSB Register */
+
+#define MCHP_PIT64B_TMSBR 0x24 /* Timer MSB Register */
+
+#define MCHP_PIT64B_PRES_MAX 0x10
+#define MCHP_PIT64B_LSBMASK GENMASK_ULL(31, 0)
+#define MCHP_PIT64B_PRES_TO_MODE(p) (MCHP_PIT64B_MR_PRES & ((p) << 8))
+#define MCHP_PIT64B_MODE_TO_PRES(m) ((MCHP_PIT64B_MR_PRES & (m)) >> 8)
+#define MCHP_PIT64B_DEF_CS_FREQ 5000000UL /* 5 MHz */
+#define MCHP_PIT64B_DEF_CE_FREQ 32768 /* 32 KHz */
+
+#define MCHP_PIT64B_NAME "pit64b"
+
+/**
+ * struct mchp_pit64b_timer - PIT64B timer data structure
+ * @base: base address of PIT64B hardware block
+ * @pclk: PIT64B's peripheral clock
+ * @gclk: PIT64B's generic clock
+ * @mode: precomputed value for mode register
+ */
+struct mchp_pit64b_timer {
+ void __iomem *base;
+ struct clk *pclk;
+ struct clk *gclk;
+ u32 mode;
+};
+
+/**
+ * mchp_pit64b_clkevt - PIT64B clockevent data structure
+ * @timer: PIT64B timer
+ * @clkevt: clockevent
+ */
+struct mchp_pit64b_clkevt {
+ struct mchp_pit64b_timer timer;
+ struct clock_event_device clkevt;
+};
+
+#define to_mchp_pit64b_timer(x) \
+ ((struct mchp_pit64b_timer *)container_of(x,\
+ struct mchp_pit64b_clkevt, clkevt))
+
+/* Base address for clocksource timer. */
+static void __iomem *mchp_pit64b_cs_base;
+/* Default cycles for clockevent timer. */
+static u64 mchp_pit64b_ce_cycles;
+
+static inline u64 mchp_pit64b_cnt_read(void __iomem *base)
+{
+ unsigned long flags;
+ u32 low, high;
+
+ raw_local_irq_save(flags);
+
+ /*
+ * When using a 64 bit period TLSB must be read first, followed by the
+ * read of TMSB. This sequence generates an atomic read of the 64 bit
+ * timer value whatever the lapse of time between the accesses.
+ */
+ low = readl_relaxed(base + MCHP_PIT64B_TLSBR);
+ high = readl_relaxed(base + MCHP_PIT64B_TMSBR);
+
+ raw_local_irq_restore(flags);
+
+ return (((u64)high << 32) | low);
+}
+
+static inline void mchp_pit64b_reset(struct mchp_pit64b_timer *timer,
+ u64 cycles, u32 mode, u32 irqs)
+{
+ u32 low, high;
+
+ low = cycles & MCHP_PIT64B_LSBMASK;
+ high = cycles >> 32;
+
+ writel_relaxed(MCHP_PIT64B_CR_SWRST, timer->base + MCHP_PIT64B_CR);
+ writel_relaxed(mode | timer->mode, timer->base + MCHP_PIT64B_MR);
+ writel_relaxed(high, timer->base + MCHP_PIT64B_MSB_PR);
+ writel_relaxed(low, timer->base + MCHP_PIT64B_LSB_PR);
+ writel_relaxed(irqs, timer->base + MCHP_PIT64B_IER);
+ writel_relaxed(MCHP_PIT64B_CR_START, timer->base + MCHP_PIT64B_CR);
+}
+
+static u64 mchp_pit64b_clksrc_read(struct clocksource *cs)
+{
+ return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
+}
+
+static u64 mchp_pit64b_sched_read_clk(void)
+{
+ return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);
+}
+
+static int mchp_pit64b_clkevt_shutdown(struct clock_event_device *cedev)
+{
+ struct mchp_pit64b_timer *timer = to_mchp_pit64b_timer(cedev);
+
+ writel_relaxed(MCHP_PIT64B_CR_SWRST, timer->base + MCHP_PIT64B_CR);
+
+ return 0;
+}
+
+static int mchp_pit64b_clkevt_set_periodic(struct clock_event_device *cedev)
+{
+ struct mchp_pit64b_timer *timer = to_mchp_pit64b_timer(cedev);
+
+ mchp_pit64b_reset(timer, mchp_pit64b_ce_cycles, MCHP_PIT64B_MR_CONT,
+ MCHP_PIT64B_IER_PERIOD);
+
+ return 0;
+}
+
+static int mchp_pit64b_clkevt_set_next_event(unsigned long evt,
+ struct clock_event_device *cedev)
+{
+ struct mchp_pit64b_timer *timer = to_mchp_pit64b_timer(cedev);
+
+ mchp_pit64b_reset(timer, evt, MCHP_PIT64B_MR_ONE_SHOT,
+ MCHP_PIT64B_IER_PERIOD);
+
+ return 0;
+}
+
+static void mchp_pit64b_clkevt_suspend(struct clock_event_device *cedev)
+{
+ struct mchp_pit64b_timer *timer = to_mchp_pit64b_timer(cedev);
+
+ writel_relaxed(MCHP_PIT64B_CR_SWRST, timer->base + MCHP_PIT64B_CR);
+ if (timer->mode & MCHP_PIT64B_MR_SGCLK)
+ clk_disable_unprepare(timer->gclk);
+ clk_disable_unprepare(timer->pclk);
+}
+
+static void mchp_pit64b_clkevt_resume(struct clock_event_device *cedev)
+{
+ struct mchp_pit64b_timer *timer = to_mchp_pit64b_timer(cedev);
+
+ clk_prepare_enable(timer->pclk);
+ if (timer->mode & MCHP_PIT64B_MR_SGCLK)
+ clk_prepare_enable(timer->gclk);
+}
+
+static irqreturn_t mchp_pit64b_interrupt(int irq, void *dev_id)
+{
+ struct mchp_pit64b_clkevt *irq_data = dev_id;
+
+ /* Need to clear the interrupt. */
+ readl_relaxed(irq_data->timer.base + MCHP_PIT64B_ISR);
+
+ irq_data->clkevt.event_handler(&irq_data->clkevt);
+
+ return IRQ_HANDLED;
+}
+
+static void __init mchp_pit64b_pres_compute(u32 *pres, u32 clk_rate,
+ u32 max_rate)
+{
+ u32 tmp;
+
+ for (*pres = 0; *pres < MCHP_PIT64B_PRES_MAX; (*pres)++) {
+ tmp = clk_rate / (*pres + 1);
+ if (tmp <= max_rate)
+ break;
+ }
+
+ /* Use the bigest prescaler if we didn't match one. */
+ if (*pres == MCHP_PIT64B_PRES_MAX)
+ *pres = MCHP_PIT64B_PRES_MAX - 1;
+}
+
+/**
+ * mchp_pit64b_init_mode - prepare PIT64B mode register value to be used at
+ * runtime; this includes prescaler and SGCLK bit
+ *
+ * PIT64B timer may be fed by gclk or pclk. When gclk is used its rate has to
+ * be at least 3 times lower that pclk's rate. pclk rate is fixed, gclk rate
+ * could be changed via clock APIs. The chosen clock (pclk or gclk) could be
+ * divided by the internal PIT64B's divider.
+ *
+ * This function, first tries to use GCLK by requesting the desired rate from
+ * PMC and then using the internal PIT64B prescaler, if any, to reach the
+ * requested rate. If PCLK/GCLK < 3 (condition requested by PIT64B hardware)
+ * then the function falls back on using PCLK as clock source for PIT64B timer
+ * choosing the highest prescaler in case it doesn't locate one to match the
+ * requested frequency.
+ *
+ * Below is presented the PIT64B block in relation with PMC:
+ *
+ * PIT64B
+ * PMC +------------------------------------+
+ * +----+ | +-----+ |
+ * | |-->gclk -->|-->| | +---------+ +-----+ |
+ * | | | | MUX |--->| Divider |->|timer| |
+ * | |-->pclk -->|-->| | +---------+ +-----+ |
+ * +----+ | +-----+ |
+ * | ^ |
+ * | sel |
+ * +------------------------------------+
+ *
+ * Where:
+ * - gclk rate <= pclk rate/3
+ * - gclk rate could be requested from PMC
+ * - pclk rate is fixed (cannot be requested from PMC)
+ */
+static int __init mchp_pit64b_init_mode(struct mchp_pit64b_timer *timer,
+ unsigned long max_rate)
+{
+ unsigned long pclk_rate, diff = 0, best_diff = ULONG_MAX;
+ long gclk_round = 0;
+ u32 pres, best_pres = 0;
+
+ pclk_rate = clk_get_rate(timer->pclk);
+ if (!pclk_rate)
+ return -EINVAL;
+
+ timer->mode = 0;
+
+ /* Try using GCLK. */
+ gclk_round = clk_round_rate(timer->gclk, max_rate);
+ if (gclk_round < 0)
+ goto pclk;
+
+ if (pclk_rate / gclk_round < 3)
+ goto pclk;
+
+ mchp_pit64b_pres_compute(&pres, gclk_round, max_rate);
+ best_diff = abs(gclk_round / (pres + 1) - max_rate);
+ best_pres = pres;
+
+ if (!best_diff) {
+ timer->mode |= MCHP_PIT64B_MR_SGCLK;
+ goto done;
+ }
+
+pclk:
+ /* Check if requested rate could be obtained using PCLK. */
+ mchp_pit64b_pres_compute(&pres, pclk_rate, max_rate);
+ diff = abs(pclk_rate / (pres + 1) - max_rate);
+
+ if (best_diff > diff) {
+ /* Use PCLK. */
+ best_pres = pres;
+ } else {
+ /* Use GCLK. */
+ timer->mode |= MCHP_PIT64B_MR_SGCLK;
+ clk_set_rate(timer->gclk, gclk_round);
+ }
+
+done:
+ timer->mode |= MCHP_PIT64B_PRES_TO_MODE(best_pres);
+
+ pr_info("PIT64B: using clk=%s with prescaler %u, freq=%lu [Hz]\n",
+ timer->mode & MCHP_PIT64B_MR_SGCLK ? "gclk" : "pclk", best_pres,
+ timer->mode & MCHP_PIT64B_MR_SGCLK ?
+ gclk_round / (best_pres + 1) : pclk_rate / (best_pres + 1));
+
+ return 0;
+}
+
+static int __init mchp_pit64b_init_clksrc(struct mchp_pit64b_timer *timer,
+ u32 clk_rate)
+{
+ int ret;
+
+ mchp_pit64b_reset(timer, ULLONG_MAX, MCHP_PIT64B_MR_CONT, 0);
+
+ mchp_pit64b_cs_base = timer->base;
+
+ ret = clocksource_mmio_init(timer->base, MCHP_PIT64B_NAME, clk_rate,
+ 210, 64, mchp_pit64b_clksrc_read);
+ if (ret) {
+ pr_debug("clksrc: Failed to register PIT64B clocksource!\n");
+
+ /* Stop timer. */
+ writel_relaxed(MCHP_PIT64B_CR_SWRST,
+ timer->base + MCHP_PIT64B_CR);
+
+ return ret;
+ }
+
+ sched_clock_register(mchp_pit64b_sched_read_clk, 64, clk_rate);
+
+ return 0;
+}
+
+static int __init mchp_pit64b_init_clkevt(struct mchp_pit64b_timer *timer,
+ u32 clk_rate, u32 irq)
+{
+ struct mchp_pit64b_clkevt *ce;
+ int ret;
+
+ ce = kzalloc(sizeof(*ce), GFP_KERNEL);
+ if (!ce)
+ return -ENOMEM;
+
+ mchp_pit64b_ce_cycles = DIV_ROUND_CLOSEST(clk_rate, HZ);
+
+ ce->timer.base = timer->base;
+ ce->timer.pclk = timer->pclk;
+ ce->timer.gclk = timer->gclk;
+ ce->timer.mode = timer->mode;
+ ce->clkevt.name = MCHP_PIT64B_NAME;
+ ce->clkevt.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC;
+ ce->clkevt.rating = 150;
+ ce->clkevt.set_state_shutdown = mchp_pit64b_clkevt_shutdown;
+ ce->clkevt.set_state_periodic = mchp_pit64b_clkevt_set_periodic;
+ ce->clkevt.set_next_event = mchp_pit64b_clkevt_set_next_event;
+ ce->clkevt.suspend = mchp_pit64b_clkevt_suspend;
+ ce->clkevt.resume = mchp_pit64b_clkevt_resume;
+ ce->clkevt.cpumask = cpumask_of(0);
+ ce->clkevt.irq = irq;
+
+ ret = request_irq(irq, mchp_pit64b_interrupt, IRQF_TIMER,
+ "pit64b_tick", ce);
+ if (ret) {
+ pr_debug("clkevt: Failed to setup PIT64B IRQ\n");
+ kfree(ce);
+ return ret;
+ }
+
+ clockevents_config_and_register(&ce->clkevt, clk_rate, 1, ULONG_MAX);
+
+ return 0;
+}
+
+static int __init mchp_pit64b_dt_init_timer(struct device_node *node,
+ bool clkevt)
+{
+ u32 freq = clkevt ? MCHP_PIT64B_DEF_CE_FREQ : MCHP_PIT64B_DEF_CS_FREQ;
+ struct mchp_pit64b_timer timer;
+ unsigned long clk_rate;
+ u32 irq = 0;
+ int ret;
+
+ /* Parse DT node. */
+ timer.pclk = of_clk_get_by_name(node, "pclk");
+ if (IS_ERR(timer.pclk))
+ return PTR_ERR(timer.pclk);
+
+ timer.gclk = of_clk_get_by_name(node, "gclk");
+ if (IS_ERR(timer.gclk))
+ return PTR_ERR(timer.gclk);
+
+ timer.base = of_iomap(node, 0);
+ if (!timer.base)
+ return -ENXIO;
+
+ if (clkevt) {
+ irq = irq_of_parse_and_map(node, 0);
+ if (!irq) {
+ ret = -ENODEV;
+ goto io_unmap;
+ }
+ }
+
+ /* Initialize mode (prescaler + SGCK bit). To be used at runtime. */
+ ret = mchp_pit64b_init_mode(&timer, freq);
+ if (ret)
+ goto irq_unmap;
+
+ ret = clk_prepare_enable(timer.pclk);
+ if (ret)
+ goto irq_unmap;
+
+ if (timer.mode & MCHP_PIT64B_MR_SGCLK) {
+ ret = clk_prepare_enable(timer.gclk);
+ if (ret)
+ goto pclk_unprepare;
+
+ clk_rate = clk_get_rate(timer.gclk);
+ } else {
+ clk_rate = clk_get_rate(timer.pclk);
+ }
+ clk_rate = clk_rate / (MCHP_PIT64B_MODE_TO_PRES(timer.mode) + 1);
+
+ if (clkevt)
+ ret = mchp_pit64b_init_clkevt(&timer, clk_rate, irq);
+ else
+ ret = mchp_pit64b_init_clksrc(&timer, clk_rate);
+
+ if (ret)
+ goto gclk_unprepare;
+
+ return 0;
+
+gclk_unprepare:
+ if (timer.mode & MCHP_PIT64B_MR_SGCLK)
+ clk_disable_unprepare(timer.gclk);
+pclk_unprepare:
+ clk_disable_unprepare(timer.pclk);
+irq_unmap:
+ irq_dispose_mapping(irq);
+io_unmap:
+ iounmap(timer.base);
+
+ return ret;
+}
+
+static int __init mchp_pit64b_dt_init(struct device_node *node)
+{
+ static int inits;
+
+ switch (inits++) {
+ case 0:
+ /* 1st request, register clockevent. */
+ return mchp_pit64b_dt_init_timer(node, true);
+ case 1:
+ /* 2nd request, register clocksource. */
+ return mchp_pit64b_dt_init_timer(node, false);
+ }
+
+ /* The rest, don't care. */
+ return -EINVAL;
+}
+
+TIMER_OF_DECLARE(mchp_pit64b, "microchip,sam9x60-pit64b", mchp_pit64b_dt_init);
diff --git a/drivers/clocksource/timer-riscv.c b/drivers/clocksource/timer-riscv.c
index 4e54856ce2a5..c4f15c4068c0 100644
--- a/drivers/clocksource/timer-riscv.c
+++ b/drivers/clocksource/timer-riscv.c
@@ -56,7 +56,7 @@ static unsigned long long riscv_clocksource_rdtime(struct clocksource *cs)
return get_cycles64();
}
-static u64 riscv_sched_clock(void)
+static u64 notrace riscv_sched_clock(void)
{
return get_cycles64();
}
diff --git a/drivers/clocksource/timer-ti-dm.c b/drivers/clocksource/timer-ti-dm.c
index 5394d9dbdfbc..269a994d6a99 100644
--- a/drivers/clocksource/timer-ti-dm.c
+++ b/drivers/clocksource/timer-ti-dm.c
@@ -780,7 +780,6 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
{
unsigned long flags;
struct omap_dm_timer *timer;
- struct resource *mem, *irq;
struct device *dev = &pdev->dev;
const struct dmtimer_platform_data *pdata;
int ret;
@@ -796,24 +795,16 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
return -ENODEV;
}
- irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (unlikely(!irq)) {
- dev_err(dev, "%s: no IRQ resource.\n", __func__);
- return -ENODEV;
- }
-
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (unlikely(!mem)) {
- dev_err(dev, "%s: no memory resource.\n", __func__);
- return -ENODEV;
- }
-
timer = devm_kzalloc(dev, sizeof(*timer), GFP_KERNEL);
if (!timer)
return -ENOMEM;
+ timer->irq = platform_get_irq(pdev, 0);
+ if (timer->irq < 0)
+ return timer->irq;
+
timer->fclk = ERR_PTR(-ENODEV);
- timer->io_base = devm_ioremap_resource(dev, mem);
+ timer->io_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(timer->io_base))
return PTR_ERR(timer->io_base);
@@ -836,7 +827,6 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
if (pdata)
timer->errata = pdata->timer_errata;
- timer->irq = irq->start;
timer->pdev = pdev;
pm_runtime_enable(dev);
diff --git a/drivers/cpufreq/brcmstb-avs-cpufreq.c b/drivers/cpufreq/brcmstb-avs-cpufreq.c
index 77b0e5d0fb13..4f86ce2db34f 100644
--- a/drivers/cpufreq/brcmstb-avs-cpufreq.c
+++ b/drivers/cpufreq/brcmstb-avs-cpufreq.c
@@ -455,6 +455,8 @@ static unsigned int brcm_avs_cpufreq_get(unsigned int cpu)
struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
struct private_data *priv = policy->driver_data;
+ cpufreq_cpu_put(policy);
+
return brcm_avs_get_frequency(priv->base);
}
diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index 8d8da763adc5..a06777c35fc0 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -39,7 +39,7 @@
static struct cppc_cpudata **all_cpu_data;
struct cppc_workaround_oem_info {
- char oem_id[ACPI_OEM_ID_SIZE +1];
+ char oem_id[ACPI_OEM_ID_SIZE + 1];
char oem_table_id[ACPI_OEM_TABLE_ID_SIZE + 1];
u32 oem_revision;
};
@@ -93,9 +93,13 @@ static void cppc_check_hisi_workaround(void)
for (i = 0; i < ARRAY_SIZE(wa_info); i++) {
if (!memcmp(wa_info[i].oem_id, tbl->oem_id, ACPI_OEM_ID_SIZE) &&
!memcmp(wa_info[i].oem_table_id, tbl->oem_table_id, ACPI_OEM_TABLE_ID_SIZE) &&
- wa_info[i].oem_revision == tbl->oem_revision)
+ wa_info[i].oem_revision == tbl->oem_revision) {
apply_hisi_workaround = true;
+ break;
+ }
}
+
+ acpi_put_table(tbl);
}
/* Callback function used to retrieve the max frequency from DMI */
diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index f1d170dcf4d3..f2ae9cd455c1 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -109,6 +109,7 @@ static const struct of_device_id blacklist[] __initconst = {
{ .compatible = "fsl,imx8mq", },
{ .compatible = "fsl,imx8mm", },
{ .compatible = "fsl,imx8mn", },
+ { .compatible = "fsl,imx8mp", },
{ .compatible = "marvell,armadaxp", },
@@ -121,6 +122,8 @@ static const struct of_device_id blacklist[] __initconst = {
{ .compatible = "mediatek,mt8176", },
{ .compatible = "mediatek,mt8183", },
+ { .compatible = "nvidia,tegra20", },
+ { .compatible = "nvidia,tegra30", },
{ .compatible = "nvidia,tegra124", },
{ .compatible = "nvidia,tegra210", },
diff --git a/drivers/cpufreq/imx-cpufreq-dt.c b/drivers/cpufreq/imx-cpufreq-dt.c
index 85a6efd6b68f..6cb8193421ea 100644
--- a/drivers/cpufreq/imx-cpufreq-dt.c
+++ b/drivers/cpufreq/imx-cpufreq-dt.c
@@ -35,7 +35,8 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
if (ret)
return ret;
- if (of_machine_is_compatible("fsl,imx8mn"))
+ if (of_machine_is_compatible("fsl,imx8mn") ||
+ of_machine_is_compatible("fsl,imx8mp"))
speed_grade = (cell_value & IMX8MN_OCOTP_CFG3_SPEED_GRADE_MASK)
>> OCOTP_CFG3_SPEED_GRADE_SHIFT;
else
@@ -54,7 +55,8 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
if (of_machine_is_compatible("fsl,imx8mm") ||
of_machine_is_compatible("fsl,imx8mq"))
speed_grade = 1;
- if (of_machine_is_compatible("fsl,imx8mn"))
+ if (of_machine_is_compatible("fsl,imx8mn") ||
+ of_machine_is_compatible("fsl,imx8mp"))
speed_grade = 0xb;
}
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index d2fa3e9ccd97..ad6a17cf0011 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -172,7 +172,7 @@ struct vid_data {
/**
* struct global_params - Global parameters, mostly tunable via sysfs.
* @no_turbo: Whether or not to use turbo P-states.
- * @turbo_disabled: Whethet or not turbo P-states are available at all,
+ * @turbo_disabled: Whether or not turbo P-states are available at all,
* based on the MSR_IA32_MISC_ENABLE value and whether or
* not the maximum reported turbo P-state is different from
* the maximum reported non-turbo one.
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index cb74bdc5baaa..70ad8fe1d78b 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -102,13 +102,11 @@ static struct cpufreq_driver kirkwood_cpufreq_driver = {
static int kirkwood_cpufreq_probe(struct platform_device *pdev)
{
struct device_node *np;
- struct resource *res;
int err;
priv.dev = &pdev->dev;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv.base = devm_ioremap_resource(&pdev->dev, res);
+ priv.base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(priv.base))
return PTR_ERR(priv.base);
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index e9caa9586982..909f40fbcde2 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -144,9 +144,11 @@ static void loongson2_cpu_wait(void)
u32 cpu_freq;
spin_lock_irqsave(&loongson2_wait_lock, flags);
- cpu_freq = LOONGSON_CHIPCFG(0);
- LOONGSON_CHIPCFG(0) &= ~0x7; /* Put CPU into wait mode */
- LOONGSON_CHIPCFG(0) = cpu_freq; /* Restore CPU state */
+ cpu_freq = readl(LOONGSON_CHIPCFG);
+ /* Put CPU into wait mode */
+ writel(readl(LOONGSON_CHIPCFG) & ~0x7, LOONGSON_CHIPCFG);
+ /* Restore CPU state */
+ writel(cpu_freq, LOONGSON_CHIPCFG);
spin_unlock_irqrestore(&loongson2_wait_lock, flags);
local_irq_enable();
}
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index fdc767fdbe6a..89d4fa8b65e9 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -445,7 +445,7 @@ static int __init pcc_cpufreq_probe(void)
goto out_free;
}
- pcch_virt_addr = ioremap_nocache(mem_resource->minimum,
+ pcch_virt_addr = ioremap(mem_resource->minimum,
mem_resource->address_length);
if (pcch_virt_addr == NULL) {
pr_debug("probe: could not map shared mem region\n");
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 106910351c41..5c221bc90210 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -304,6 +304,7 @@ static int s3c2416_cpufreq_reboot_notifier_evt(struct notifier_block *this,
{
struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
int ret;
+ struct cpufreq_policy *policy;
mutex_lock(&cpufreq_lock);
@@ -318,7 +319,16 @@ static int s3c2416_cpufreq_reboot_notifier_evt(struct notifier_block *this,
*/
if (s3c_freq->is_dvs) {
pr_debug("cpufreq: leave dvs on reboot\n");
- ret = cpufreq_driver_target(cpufreq_cpu_get(0), FREQ_SLEEP, 0);
+
+ policy = cpufreq_cpu_get(0);
+ if (!policy) {
+ pr_debug("cpufreq: get no policy for cpu0\n");
+ return NOTIFY_BAD;
+ }
+
+ ret = cpufreq_driver_target(policy, FREQ_SLEEP, 0);
+ cpufreq_cpu_put(policy);
+
if (ret < 0)
return NOTIFY_BAD;
}
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 5d10030f2560..e84281e2561d 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -555,8 +555,17 @@ static int s5pv210_cpufreq_reboot_notifier_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
int ret;
+ struct cpufreq_policy *policy;
+
+ policy = cpufreq_cpu_get(0);
+ if (!policy) {
+ pr_debug("cpufreq: get no policy for cpu0\n");
+ return NOTIFY_BAD;
+ }
+
+ ret = cpufreq_driver_target(policy, SLEEP_FREQ, 0);
+ cpufreq_cpu_put(policy);
- ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
if (ret < 0)
return NOTIFY_BAD;
diff --git a/drivers/cpufreq/tegra186-cpufreq.c b/drivers/cpufreq/tegra186-cpufreq.c
index bcecb068b51b..2e233ad72758 100644
--- a/drivers/cpufreq/tegra186-cpufreq.c
+++ b/drivers/cpufreq/tegra186-cpufreq.c
@@ -187,7 +187,6 @@ static int tegra186_cpufreq_probe(struct platform_device *pdev)
{
struct tegra186_cpufreq_data *data;
struct tegra_bpmp *bpmp;
- struct resource *res;
unsigned int i = 0, err;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
@@ -205,8 +204,7 @@ static int tegra186_cpufreq_probe(struct platform_device *pdev)
if (IS_ERR(bpmp))
return PTR_ERR(bpmp);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- data->regs = devm_ioremap_resource(&pdev->dev, res);
+ data->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(data->regs)) {
err = PTR_ERR(data->regs);
goto put_bpmp;
diff --git a/drivers/cpufreq/vexpress-spc-cpufreq.c b/drivers/cpufreq/vexpress-spc-cpufreq.c
index 506e3f2bf53a..83c85d3d67e3 100644
--- a/drivers/cpufreq/vexpress-spc-cpufreq.c
+++ b/drivers/cpufreq/vexpress-spc-cpufreq.c
@@ -434,7 +434,7 @@ static int ve_spc_cpufreq_init(struct cpufreq_policy *policy)
if (cur_cluster < MAX_CLUSTERS) {
int cpu;
- cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
+ dev_pm_opp_get_sharing_cpus(cpu_dev, policy->cpus);
for_each_cpu(cpu, policy->cpus)
per_cpu(physical_cluster, cpu) = cur_cluster;
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index a224d33dda7f..62272ecfa771 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -25,7 +25,7 @@ config ARM_PSCI_CPUIDLE
config ARM_BIG_LITTLE_CPUIDLE
bool "Support for ARM big.LITTLE processors"
- depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS
+ depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS || COMPILE_TEST
depends on MCPM && !ARM64
select ARM_CPU_SUSPEND
select CPU_IDLE_MULTIPLE_DRIVERS
@@ -51,13 +51,13 @@ config ARM_HIGHBANK_CPUIDLE
config ARM_KIRKWOOD_CPUIDLE
bool "CPU Idle Driver for Marvell Kirkwood SoCs"
- depends on MACH_KIRKWOOD && !ARM64
+ depends on (MACH_KIRKWOOD || COMPILE_TEST) && !ARM64
help
This adds the CPU Idle driver for Marvell Kirkwood SoCs.
config ARM_ZYNQ_CPUIDLE
bool "CPU Idle Driver for Xilinx Zynq processors"
- depends on ARCH_ZYNQ && !ARM64
+ depends on (ARCH_ZYNQ || COMPILE_TEST) && !ARM64
help
Select this to enable cpuidle on Xilinx Zynq processors.
@@ -70,19 +70,19 @@ config ARM_U8500_CPUIDLE
config ARM_AT91_CPUIDLE
bool "Cpu Idle Driver for the AT91 processors"
default y
- depends on ARCH_AT91 && !ARM64
+ depends on (ARCH_AT91 || COMPILE_TEST) && !ARM64
help
Select this to enable cpuidle for AT91 processors.
config ARM_EXYNOS_CPUIDLE
bool "Cpu Idle Driver for the Exynos processors"
- depends on ARCH_EXYNOS && !ARM64
+ depends on (ARCH_EXYNOS || COMPILE_TEST) && !ARM64
select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
help
Select this to enable cpuidle for Exynos processors.
config ARM_MVEBU_V7_CPUIDLE
bool "CPU Idle Driver for mvebu v7 family processors"
- depends on ARCH_MVEBU && !ARM64
+ depends on (ARCH_MVEBU || COMPILE_TEST) && !ARM64
help
Select this to enable cpuidle on Armada 370, 38x and XP processors.
diff --git a/drivers/cpuidle/coupled.c b/drivers/cpuidle/coupled.c
index b607278df25b..04003b90dc49 100644
--- a/drivers/cpuidle/coupled.c
+++ b/drivers/cpuidle/coupled.c
@@ -89,6 +89,7 @@
* @coupled_cpus: mask of cpus that are part of the coupled set
* @requested_state: array of requested states for cpus in the coupled set
* @ready_waiting_counts: combined count of cpus in ready or waiting loops
+ * @abort_barrier: synchronisation point for abort cases
* @online_count: count of cpus that are online
* @refcnt: reference count of cpuidle devices that are using this struct
* @prevent: flag to prevent coupled idle while a cpu is hotplugging
@@ -338,7 +339,7 @@ static void cpuidle_coupled_poke(int cpu)
/**
* cpuidle_coupled_poke_others - wake up all other cpus that may be waiting
- * @dev: struct cpuidle_device for this cpu
+ * @this_cpu: target cpu
* @coupled: the struct coupled that contains the current cpu
*
* Calls cpuidle_coupled_poke on all other online cpus.
@@ -355,7 +356,7 @@ static void cpuidle_coupled_poke_others(int this_cpu,
/**
* cpuidle_coupled_set_waiting - mark this cpu as in the wait loop
- * @dev: struct cpuidle_device for this cpu
+ * @cpu: target cpu
* @coupled: the struct coupled that contains the current cpu
* @next_state: the index in drv->states of the requested state for this cpu
*
@@ -376,7 +377,7 @@ static int cpuidle_coupled_set_waiting(int cpu,
/**
* cpuidle_coupled_set_not_waiting - mark this cpu as leaving the wait loop
- * @dev: struct cpuidle_device for this cpu
+ * @cpu: target cpu
* @coupled: the struct coupled that contains the current cpu
*
* Removes the requested idle state for the specified cpuidle device.
@@ -412,7 +413,7 @@ static void cpuidle_coupled_set_done(int cpu, struct cpuidle_coupled *coupled)
/**
* cpuidle_coupled_clear_pokes - spin until the poke interrupt is processed
- * @cpu - this cpu
+ * @cpu: this cpu
*
* Turns on interrupts and spins until any outstanding poke interrupts have
* been processed and the poke bit has been cleared.
diff --git a/drivers/cpuidle/cpuidle-clps711x.c b/drivers/cpuidle/cpuidle-clps711x.c
index 6e36740f5719..fc22c59b6c73 100644
--- a/drivers/cpuidle/cpuidle-clps711x.c
+++ b/drivers/cpuidle/cpuidle-clps711x.c
@@ -37,10 +37,7 @@ static struct cpuidle_driver clps711x_idle_driver = {
static int __init clps711x_cpuidle_probe(struct platform_device *pdev)
{
- struct resource *res;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- clps711x_halt = devm_ioremap_resource(&pdev->dev, res);
+ clps711x_halt = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(clps711x_halt))
return PTR_ERR(clps711x_halt);
diff --git a/drivers/cpuidle/cpuidle-kirkwood.c b/drivers/cpuidle/cpuidle-kirkwood.c
index d23d8f468c12..511c4f46027a 100644
--- a/drivers/cpuidle/cpuidle-kirkwood.c
+++ b/drivers/cpuidle/cpuidle-kirkwood.c
@@ -55,10 +55,7 @@ static struct cpuidle_driver kirkwood_idle_driver = {
/* Initialize CPU idle by registering the idle states */
static int kirkwood_cpuidle_probe(struct platform_device *pdev)
{
- struct resource *res;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- ddr_operation_base = devm_ioremap_resource(&pdev->dev, res);
+ ddr_operation_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(ddr_operation_base))
return PTR_ERR(ddr_operation_base);
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 33d19c8eb027..de81298051b3 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -121,6 +121,9 @@ void cpuidle_use_deepest_state(u64 latency_limit_ns)
* cpuidle_find_deepest_state - Find the deepest available idle state.
* @drv: cpuidle driver for the given CPU.
* @dev: cpuidle device for the given CPU.
+ * @latency_limit_ns: Idle state exit latency limit
+ *
+ * Return: the index of the deepest available idle state.
*/
int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev,
@@ -572,10 +575,14 @@ static int __cpuidle_register_device(struct cpuidle_device *dev)
if (!try_module_get(drv->owner))
return -EINVAL;
- for (i = 0; i < drv->state_count; i++)
+ for (i = 0; i < drv->state_count; i++) {
if (drv->states[i].flags & CPUIDLE_FLAG_UNUSABLE)
dev->states_usage[i].disable |= CPUIDLE_STATE_DISABLED_BY_DRIVER;
+ if (drv->states[i].flags & CPUIDLE_FLAG_OFF)
+ dev->states_usage[i].disable |= CPUIDLE_STATE_DISABLED_BY_USER;
+ }
+
per_cpu(cpuidle_devices, dev->cpu) = dev;
list_add(&dev->device_list, &cpuidle_detected_devices);
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index ce6a5f80fb83..4070e573bf43 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -155,8 +155,6 @@ static void __cpuidle_driver_init(struct cpuidle_driver *drv)
{
int i;
- drv->refcnt = 0;
-
/*
* Use all possible CPUs as the default, because if the kernel boots
* with some CPUs offline and then we online one of them, the CPU
@@ -240,9 +238,6 @@ static int __cpuidle_register_driver(struct cpuidle_driver *drv)
*/
static void __cpuidle_unregister_driver(struct cpuidle_driver *drv)
{
- if (WARN_ON(drv->refcnt > 0))
- return;
-
if (drv->bctimer) {
drv->bctimer = 0;
on_each_cpu_mask(drv->cpumask, cpuidle_setup_broadcast_timer,
@@ -350,47 +345,6 @@ struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev)
EXPORT_SYMBOL_GPL(cpuidle_get_cpu_driver);
/**
- * cpuidle_driver_ref - get a reference to the driver.
- *
- * Increment the reference counter of the cpuidle driver associated with
- * the current CPU.
- *
- * Returns a pointer to the driver, or NULL if the current CPU has no driver.
- */
-struct cpuidle_driver *cpuidle_driver_ref(void)
-{
- struct cpuidle_driver *drv;
-
- spin_lock(&cpuidle_driver_lock);
-
- drv = cpuidle_get_driver();
- if (drv)
- drv->refcnt++;
-
- spin_unlock(&cpuidle_driver_lock);
- return drv;
-}
-
-/**
- * cpuidle_driver_unref - puts down the refcount for the driver
- *
- * Decrement the reference counter of the cpuidle driver associated with
- * the current CPU.
- */
-void cpuidle_driver_unref(void)
-{
- struct cpuidle_driver *drv;
-
- spin_lock(&cpuidle_driver_lock);
-
- drv = cpuidle_get_driver();
- if (drv && !WARN_ON(drv->refcnt <= 0))
- drv->refcnt--;
-
- spin_unlock(&cpuidle_driver_lock);
-}
-
-/**
* cpuidle_driver_state_disabled - Disable or enable an idle state
* @drv: cpuidle driver owning the state
* @idx: State index
diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c
index de7e706efd46..6deaaf5f05b5 100644
--- a/drivers/cpuidle/governors/teo.c
+++ b/drivers/cpuidle/governors/teo.c
@@ -198,7 +198,7 @@ static void teo_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* pattern detection.
*/
cpu_data->intervals[cpu_data->interval_idx++] = measured_ns;
- if (cpu_data->interval_idx > INTERVALS)
+ if (cpu_data->interval_idx >= INTERVALS)
cpu_data->interval_idx = 0;
}
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 38ef770be90d..cdeedbf02646 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -142,6 +142,7 @@ static struct attribute_group cpuidle_attr_group = {
/**
* cpuidle_add_interface - add CPU global sysfs attributes
+ * @dev: the target device
*/
int cpuidle_add_interface(struct device *dev)
{
@@ -153,6 +154,7 @@ int cpuidle_add_interface(struct device *dev)
/**
* cpuidle_remove_interface - remove CPU global sysfs attributes
+ * @dev: the target device
*/
void cpuidle_remove_interface(struct device *dev)
{
@@ -327,6 +329,14 @@ static ssize_t store_state_disable(struct cpuidle_state *state,
return size;
}
+static ssize_t show_state_default_status(struct cpuidle_state *state,
+ struct cpuidle_state_usage *state_usage,
+ char *buf)
+{
+ return sprintf(buf, "%s\n",
+ state->flags & CPUIDLE_FLAG_OFF ? "disabled" : "enabled");
+}
+
define_one_state_ro(name, show_state_name);
define_one_state_ro(desc, show_state_desc);
define_one_state_ro(latency, show_state_exit_latency);
@@ -337,6 +347,7 @@ define_one_state_ro(time, show_state_time);
define_one_state_rw(disable, show_state_disable, store_state_disable);
define_one_state_ro(above, show_state_above);
define_one_state_ro(below, show_state_below);
+define_one_state_ro(default_status, show_state_default_status);
static struct attribute *cpuidle_state_default_attrs[] = {
&attr_name.attr,
@@ -349,6 +360,7 @@ static struct attribute *cpuidle_state_default_attrs[] = {
&attr_disable.attr,
&attr_above.attr,
&attr_below.attr,
+ &attr_default_status.attr,
NULL
};
@@ -615,7 +627,7 @@ static struct kobj_type ktype_driver_cpuidle = {
/**
* cpuidle_add_driver_sysfs - adds the driver name sysfs attribute
- * @device: the target device
+ * @dev: the target device
*/
static int cpuidle_add_driver_sysfs(struct cpuidle_device *dev)
{
@@ -646,7 +658,7 @@ static int cpuidle_add_driver_sysfs(struct cpuidle_device *dev)
/**
* cpuidle_remove_driver_sysfs - removes the driver name sysfs attribute
- * @device: the target device
+ * @dev: the target device
*/
static void cpuidle_remove_driver_sysfs(struct cpuidle_device *dev)
{
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 91eb768d4221..c2767ed54dfe 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -248,15 +248,15 @@ config CRYPTO_DEV_MARVELL_CESA
This driver supports CPU offload through DMA transfers.
config CRYPTO_DEV_NIAGARA2
- tristate "Niagara2 Stream Processing Unit driver"
- select CRYPTO_LIB_DES
- select CRYPTO_SKCIPHER
- select CRYPTO_HASH
- select CRYPTO_MD5
- select CRYPTO_SHA1
- select CRYPTO_SHA256
- depends on SPARC64
- help
+ tristate "Niagara2 Stream Processing Unit driver"
+ select CRYPTO_LIB_DES
+ select CRYPTO_SKCIPHER
+ select CRYPTO_HASH
+ select CRYPTO_MD5
+ select CRYPTO_SHA1
+ select CRYPTO_SHA256
+ depends on SPARC64
+ help
Each core of a Niagara2 processor contains a Stream
Processing Unit, which itself contains several cryptographic
sub-units. One set provides the Modular Arithmetic Unit,
@@ -357,7 +357,7 @@ config CRYPTO_DEV_OMAP
depends on ARCH_OMAP2PLUS
help
OMAP processors have various crypto HW accelerators. Select this if
- you want to use the OMAP modules for any of the crypto algorithms.
+ you want to use the OMAP modules for any of the crypto algorithms.
if CRYPTO_DEV_OMAP
@@ -430,7 +430,7 @@ config CRYPTO_DEV_SAHARA
found in some Freescale i.MX chips.
config CRYPTO_DEV_EXYNOS_RNG
- tristate "EXYNOS HW pseudo random number generator support"
+ tristate "Exynos HW pseudo random number generator support"
depends on ARCH_EXYNOS || COMPILE_TEST
depends on HAS_IOMEM
select CRYPTO_RNG
@@ -618,6 +618,14 @@ config CRYPTO_DEV_QCE
tristate "Qualcomm crypto engine accelerator"
depends on ARCH_QCOM || COMPILE_TEST
depends on HAS_IOMEM
+ help
+ This driver supports Qualcomm crypto engine accelerator
+ hardware. To compile this driver as a module, choose M here. The
+ module will be called qcrypto.
+
+config CRYPTO_DEV_QCE_SKCIPHER
+ bool
+ depends on CRYPTO_DEV_QCE
select CRYPTO_AES
select CRYPTO_LIB_DES
select CRYPTO_ECB
@@ -625,10 +633,57 @@ config CRYPTO_DEV_QCE
select CRYPTO_XTS
select CRYPTO_CTR
select CRYPTO_SKCIPHER
- help
- This driver supports Qualcomm crypto engine accelerator
- hardware. To compile this driver as a module, choose M here. The
- module will be called qcrypto.
+
+config CRYPTO_DEV_QCE_SHA
+ bool
+ depends on CRYPTO_DEV_QCE
+
+choice
+ prompt "Algorithms enabled for QCE acceleration"
+ default CRYPTO_DEV_QCE_ENABLE_ALL
+ depends on CRYPTO_DEV_QCE
+ help
+ This option allows to choose whether to build support for all algorihtms
+ (default), hashes-only, or skciphers-only.
+
+ The QCE engine does not appear to scale as well as the CPU to handle
+ multiple crypto requests. While the ipq40xx chips have 4-core CPUs, the
+ QCE handles only 2 requests in parallel.
+
+ Ipsec throughput seems to improve when disabling either family of
+ algorithms, sharing the load with the CPU. Enabling skciphers-only
+ appears to work best.
+
+ config CRYPTO_DEV_QCE_ENABLE_ALL
+ bool "All supported algorithms"
+ select CRYPTO_DEV_QCE_SKCIPHER
+ select CRYPTO_DEV_QCE_SHA
+ help
+ Enable all supported algorithms:
+ - AES (CBC, CTR, ECB, XTS)
+ - 3DES (CBC, ECB)
+ - DES (CBC, ECB)
+ - SHA1, HMAC-SHA1
+ - SHA256, HMAC-SHA256
+
+ config CRYPTO_DEV_QCE_ENABLE_SKCIPHER
+ bool "Symmetric-key ciphers only"
+ select CRYPTO_DEV_QCE_SKCIPHER
+ help
+ Enable symmetric-key ciphers only:
+ - AES (CBC, CTR, ECB, XTS)
+ - 3DES (ECB, CBC)
+ - DES (ECB, CBC)
+
+ config CRYPTO_DEV_QCE_ENABLE_SHA
+ bool "Hash/HMAC only"
+ select CRYPTO_DEV_QCE_SHA
+ help
+ Enable hashes/HMAC algorithms only:
+ - SHA1, HMAC-SHA1
+ - SHA256, HMAC-SHA256
+
+endchoice
config CRYPTO_DEV_QCOM_RNG
tristate "Qualcomm Random Number Generator Driver"
@@ -639,7 +694,7 @@ config CRYPTO_DEV_QCOM_RNG
Generator hardware found on Qualcomm SoCs.
To compile this driver as a module, choose M here. The
- module will be called qcom-rng. If unsure, say N.
+ module will be called qcom-rng. If unsure, say N.
config CRYPTO_DEV_VMX
bool "Support for VMX cryptographic acceleration instructions"
@@ -716,7 +771,7 @@ source "drivers/crypto/stm32/Kconfig"
config CRYPTO_DEV_SAFEXCEL
tristate "Inside Secure's SafeXcel cryptographic engine driver"
- depends on OF || PCI || COMPILE_TEST
+ depends on (OF || PCI || COMPILE_TEST) && HAS_IOMEM
select CRYPTO_LIB_AES
select CRYPTO_AUTHENC
select CRYPTO_SKCIPHER
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c
index cb2b0874f68f..7f22d305178e 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c
@@ -541,7 +541,6 @@ int sun4i_ss_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
break;
default:
dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen);
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
op->keylen = keylen;
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
index 814cd12149a9..a2b67f7f8a81 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
@@ -13,6 +13,7 @@
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <crypto/scatterwalk.h>
#include <linux/scatterlist.h>
@@ -22,6 +23,14 @@
#include "sun4i-ss.h"
+static const struct ss_variant ss_a10_variant = {
+ .sha1_in_be = false,
+};
+
+static const struct ss_variant ss_a33_variant = {
+ .sha1_in_be = true,
+};
+
static struct sun4i_ss_alg_template ss_algs[] = {
{ .type = CRYPTO_ALG_TYPE_AHASH,
.mode = SS_OP_MD5,
@@ -273,7 +282,7 @@ err_enable:
return err;
}
-const struct dev_pm_ops sun4i_ss_pm_ops = {
+static const struct dev_pm_ops sun4i_ss_pm_ops = {
SET_RUNTIME_PM_OPS(sun4i_ss_pm_suspend, sun4i_ss_pm_resume, NULL)
};
@@ -323,6 +332,12 @@ static int sun4i_ss_probe(struct platform_device *pdev)
return PTR_ERR(ss->base);
}
+ ss->variant = of_device_get_match_data(&pdev->dev);
+ if (!ss->variant) {
+ dev_err(&pdev->dev, "Missing Security System variant\n");
+ return -EINVAL;
+ }
+
ss->ssclk = devm_clk_get(&pdev->dev, "mod");
if (IS_ERR(ss->ssclk)) {
err = PTR_ERR(ss->ssclk);
@@ -484,7 +499,12 @@ static int sun4i_ss_remove(struct platform_device *pdev)
}
static const struct of_device_id a20ss_crypto_of_match_table[] = {
- { .compatible = "allwinner,sun4i-a10-crypto" },
+ { .compatible = "allwinner,sun4i-a10-crypto",
+ .data = &ss_a10_variant
+ },
+ { .compatible = "allwinner,sun8i-a33-crypto",
+ .data = &ss_a33_variant
+ },
{}
};
MODULE_DEVICE_TABLE(of, a20ss_crypto_of_match_table);
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
index fdc0e6cdbb85..dc35edd90034 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-hash.c
@@ -479,7 +479,10 @@ hash_final:
/* Get the hash from the device */
if (op->mode == SS_OP_SHA1) {
for (i = 0; i < 5; i++) {
- v = cpu_to_be32(readl(ss->base + SS_MD0 + i * 4));
+ if (ss->variant->sha1_in_be)
+ v = cpu_to_le32(readl(ss->base + SS_MD0 + i * 4));
+ else
+ v = cpu_to_be32(readl(ss->base + SS_MD0 + i * 4));
memcpy(areq->result + i * 4, &v, 4);
}
} else {
diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h
index 60425ac75d90..2b4c6333eb67 100644
--- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h
+++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h
@@ -131,7 +131,16 @@
#define SS_SEED_LEN 192
#define SS_DATA_LEN 160
+/*
+ * struct ss_variant - Describe SS hardware variant
+ * @sha1_in_be: The SHA1 digest is given by SS in BE, and so need to be inverted.
+ */
+struct ss_variant {
+ bool sha1_in_be;
+};
+
struct sun4i_ss_ctx {
+ const struct ss_variant *variant;
void __iomem *base;
int irq;
struct clk *busclk;
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
index 37d0b6c386a0..a5fd8975f3d3 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
@@ -144,11 +144,6 @@ static int sun8i_ce_cipher(struct skcipher_request *areq)
cet->t_sym_ctl = cpu_to_le32(sym);
cet->t_asym_ctl = 0;
- chan->op_mode = ce->variant->op_mode[algt->ce_blockmode];
- chan->op_dir = rctx->op_dir;
- chan->method = ce->variant->alg_cipher[algt->ce_algo_id];
- chan->keylen = op->keylen;
-
addr_key = dma_map_single(ce->dev, op->key, op->keylen, DMA_TO_DEVICE);
cet->t_key = cpu_to_le32(addr_key);
if (dma_mapping_error(ce->dev, addr_key)) {
@@ -394,7 +389,6 @@ int sun8i_ce_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
break;
default:
dev_dbg(ce->dev, "ERROR: Invalid keylen %u\n", keylen);
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
if (op->key) {
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
index 73a7649f915d..f72346a44e69 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
@@ -555,7 +555,7 @@ static int sun8i_ce_probe(struct platform_device *pdev)
return -EINVAL;
}
- ce->base = devm_platform_ioremap_resource(pdev, 0);;
+ ce->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(ce->base))
return PTR_ERR(ce->base);
@@ -624,7 +624,7 @@ error_alg:
error_irq:
sun8i_ce_pm_exit(ce);
error_pm:
- sun8i_ce_free_chanlist(ce, MAXFLOW);
+ sun8i_ce_free_chanlist(ce, MAXFLOW - 1);
return err;
}
@@ -638,7 +638,7 @@ static int sun8i_ce_remove(struct platform_device *pdev)
debugfs_remove_recursive(ce->dbgfs_dir);
#endif
- sun8i_ce_free_chanlist(ce, MAXFLOW);
+ sun8i_ce_free_chanlist(ce, MAXFLOW - 1);
sun8i_ce_pm_exit(ce);
return 0;
diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h
index 43db49ceafe4..8f8404c84a4d 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h
@@ -131,12 +131,8 @@ struct ce_task {
* @engine: ptr to the crypto_engine for this flow
* @bounce_iv: buffer which contain the IV
* @ivlen: size of bounce_iv
- * @keylen: keylen for this flow operation
* @complete: completion for the current task on this flow
* @status: set to 1 by interrupt if task is done
- * @method: current method for flow
- * @op_dir: direction (encrypt vs decrypt) of this flow
- * @op_mode: op_mode for this flow
* @t_phy: Physical address of task
* @tl: pointer to the current ce_task for this flow
* @stat_req: number of request done by this flow
@@ -145,12 +141,8 @@ struct sun8i_ce_flow {
struct crypto_engine *engine;
void *bounce_iv;
unsigned int ivlen;
- unsigned int keylen;
struct completion complete;
int status;
- u32 method;
- u32 op_dir;
- u32 op_mode;
dma_addr_t t_phy;
int timeout;
struct ce_task *tl;
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
index f222979a5623..84d52fc3a2da 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c
@@ -390,7 +390,6 @@ int sun8i_ss_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
break;
default:
dev_dbg(ss->dev, "ERROR: Invalid keylen %u\n", keylen);
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
if (op->key) {
@@ -416,7 +415,6 @@ int sun8i_ss_des3_setkey(struct crypto_skcipher *tfm, const u8 *key,
if (unlikely(keylen != 3 * DES_KEY_SIZE)) {
dev_dbg(ss->dev, "Invalid keylen %u\n", keylen);
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
index 90997cc509b8..6b301afffd11 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
@@ -595,7 +595,7 @@ error_alg:
error_irq:
sun8i_ss_pm_exit(ss);
error_pm:
- sun8i_ss_free_flows(ss, MAXFLOW);
+ sun8i_ss_free_flows(ss, MAXFLOW - 1);
return err;
}
@@ -609,7 +609,7 @@ static int sun8i_ss_remove(struct platform_device *pdev)
debugfs_remove_recursive(ss->dbgfs_dir);
#endif
- sun8i_ss_free_flows(ss, MAXFLOW);
+ sun8i_ss_free_flows(ss, MAXFLOW - 1);
sun8i_ss_pm_exit(ss);
diff --git a/drivers/crypto/amcc/crypto4xx_alg.c b/drivers/crypto/amcc/crypto4xx_alg.c
index a42f8619589d..f7fc0c464125 100644
--- a/drivers/crypto/amcc/crypto4xx_alg.c
+++ b/drivers/crypto/amcc/crypto4xx_alg.c
@@ -128,12 +128,9 @@ static int crypto4xx_setkey_aes(struct crypto_skcipher *cipher,
struct dynamic_sa_ctl *sa;
int rc;
- if (keylen != AES_KEYSIZE_256 &&
- keylen != AES_KEYSIZE_192 && keylen != AES_KEYSIZE_128) {
- crypto_skcipher_set_flags(cipher,
- CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != AES_KEYSIZE_256 && keylen != AES_KEYSIZE_192 &&
+ keylen != AES_KEYSIZE_128)
return -EINVAL;
- }
/* Create SA */
if (ctx->sa_in || ctx->sa_out)
@@ -292,19 +289,11 @@ static int crypto4xx_sk_setup_fallback(struct crypto4xx_ctx *ctx,
const u8 *key,
unsigned int keylen)
{
- int rc;
-
crypto_sync_skcipher_clear_flags(ctx->sw_cipher.cipher,
CRYPTO_TFM_REQ_MASK);
crypto_sync_skcipher_set_flags(ctx->sw_cipher.cipher,
crypto_skcipher_get_flags(cipher) & CRYPTO_TFM_REQ_MASK);
- rc = crypto_sync_skcipher_setkey(ctx->sw_cipher.cipher, key, keylen);
- crypto_skcipher_clear_flags(cipher, CRYPTO_TFM_RES_MASK);
- crypto_skcipher_set_flags(cipher,
- crypto_sync_skcipher_get_flags(ctx->sw_cipher.cipher) &
- CRYPTO_TFM_RES_MASK);
-
- return rc;
+ return crypto_sync_skcipher_setkey(ctx->sw_cipher.cipher, key, keylen);
}
int crypto4xx_setkey_aes_ctr(struct crypto_skcipher *cipher,
@@ -379,18 +368,10 @@ static int crypto4xx_aead_setup_fallback(struct crypto4xx_ctx *ctx,
const u8 *key,
unsigned int keylen)
{
- int rc;
-
crypto_aead_clear_flags(ctx->sw_cipher.aead, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(ctx->sw_cipher.aead,
crypto_aead_get_flags(cipher) & CRYPTO_TFM_REQ_MASK);
- rc = crypto_aead_setkey(ctx->sw_cipher.aead, key, keylen);
- crypto_aead_clear_flags(cipher, CRYPTO_TFM_RES_MASK);
- crypto_aead_set_flags(cipher,
- crypto_aead_get_flags(ctx->sw_cipher.aead) &
- CRYPTO_TFM_RES_MASK);
-
- return rc;
+ return crypto_aead_setkey(ctx->sw_cipher.aead, key, keylen);
}
/**
@@ -551,10 +532,8 @@ int crypto4xx_setkey_aes_gcm(struct crypto_aead *cipher,
struct dynamic_sa_ctl *sa;
int rc = 0;
- if (crypto4xx_aes_gcm_validate_keylen(keylen) != 0) {
- crypto_aead_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (crypto4xx_aes_gcm_validate_keylen(keylen) != 0)
return -EINVAL;
- }
rc = crypto4xx_aead_setup_fallback(ctx, cipher, key, keylen);
if (rc)
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
index 7d6b695c4ab3..981de43ea5e2 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -169,7 +169,7 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
int i;
dev->pdr = dma_alloc_coherent(dev->core_dev->device,
sizeof(struct ce_pd) * PPC4XX_NUM_PD,
- &dev->pdr_pa, GFP_ATOMIC);
+ &dev->pdr_pa, GFP_KERNEL);
if (!dev->pdr)
return -ENOMEM;
@@ -185,13 +185,13 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
dev->shadow_sa_pool = dma_alloc_coherent(dev->core_dev->device,
sizeof(union shadow_sa_buf) * PPC4XX_NUM_PD,
&dev->shadow_sa_pool_pa,
- GFP_ATOMIC);
+ GFP_KERNEL);
if (!dev->shadow_sa_pool)
return -ENOMEM;
dev->shadow_sr_pool = dma_alloc_coherent(dev->core_dev->device,
sizeof(struct sa_state_record) * PPC4XX_NUM_PD,
- &dev->shadow_sr_pool_pa, GFP_ATOMIC);
+ &dev->shadow_sr_pool_pa, GFP_KERNEL);
if (!dev->shadow_sr_pool)
return -ENOMEM;
for (i = 0; i < PPC4XX_NUM_PD; i++) {
@@ -277,7 +277,7 @@ static u32 crypto4xx_build_gdr(struct crypto4xx_device *dev)
{
dev->gdr = dma_alloc_coherent(dev->core_dev->device,
sizeof(struct ce_gd) * PPC4XX_NUM_GD,
- &dev->gdr_pa, GFP_ATOMIC);
+ &dev->gdr_pa, GFP_KERNEL);
if (!dev->gdr)
return -ENOMEM;
@@ -286,7 +286,8 @@ static u32 crypto4xx_build_gdr(struct crypto4xx_device *dev)
static inline void crypto4xx_destroy_gdr(struct crypto4xx_device *dev)
{
- dma_free_coherent(dev->core_dev->device,
+ if (dev->gdr)
+ dma_free_coherent(dev->core_dev->device,
sizeof(struct ce_gd) * PPC4XX_NUM_GD,
dev->gdr, dev->gdr_pa);
}
@@ -354,20 +355,20 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
{
int i;
- /* alloc memory for scatter descriptor ring */
- dev->sdr = dma_alloc_coherent(dev->core_dev->device,
- sizeof(struct ce_sd) * PPC4XX_NUM_SD,
- &dev->sdr_pa, GFP_ATOMIC);
- if (!dev->sdr)
- return -ENOMEM;
-
dev->scatter_buffer_va =
dma_alloc_coherent(dev->core_dev->device,
PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
- &dev->scatter_buffer_pa, GFP_ATOMIC);
+ &dev->scatter_buffer_pa, GFP_KERNEL);
if (!dev->scatter_buffer_va)
return -ENOMEM;
+ /* alloc memory for scatter descriptor ring */
+ dev->sdr = dma_alloc_coherent(dev->core_dev->device,
+ sizeof(struct ce_sd) * PPC4XX_NUM_SD,
+ &dev->sdr_pa, GFP_KERNEL);
+ if (!dev->sdr)
+ return -ENOMEM;
+
for (i = 0; i < PPC4XX_NUM_SD; i++) {
dev->sdr[i].ptr = dev->scatter_buffer_pa +
PPC4XX_SD_BUFFER_SIZE * i;
@@ -1439,16 +1440,15 @@ static int crypto4xx_probe(struct platform_device *ofdev)
spin_lock_init(&core_dev->lock);
INIT_LIST_HEAD(&core_dev->dev->alg_list);
ratelimit_default_init(&core_dev->dev->aead_ratelimit);
+ rc = crypto4xx_build_sdr(core_dev->dev);
+ if (rc)
+ goto err_build_sdr;
rc = crypto4xx_build_pdr(core_dev->dev);
if (rc)
- goto err_build_pdr;
+ goto err_build_sdr;
rc = crypto4xx_build_gdr(core_dev->dev);
if (rc)
- goto err_build_pdr;
-
- rc = crypto4xx_build_sdr(core_dev->dev);
- if (rc)
goto err_build_sdr;
/* Init tasklet for bottom half processing */
@@ -1493,7 +1493,6 @@ err_iomap:
err_build_sdr:
crypto4xx_destroy_sdr(core_dev->dev);
crypto4xx_destroy_gdr(core_dev->dev);
-err_build_pdr:
crypto4xx_destroy_pdr(core_dev->dev);
kfree(core_dev->dev);
err_alloc_dev:
diff --git a/drivers/crypto/amlogic/Kconfig b/drivers/crypto/amlogic/Kconfig
index b90850d18965..cf9547602670 100644
--- a/drivers/crypto/amlogic/Kconfig
+++ b/drivers/crypto/amlogic/Kconfig
@@ -1,5 +1,6 @@
config CRYPTO_DEV_AMLOGIC_GXL
tristate "Support for amlogic cryptographic offloader"
+ depends on HAS_IOMEM
default y if ARCH_MESON
select CRYPTO_SKCIPHER
select CRYPTO_ENGINE
diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index e589015aac1c..9819dd50fbad 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
@@ -366,7 +366,6 @@ int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
break;
default:
dev_dbg(mc->dev, "ERROR: Invalid keylen %u\n", keylen);
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
if (op->key) {
diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c
index fa05fce1c0de..9d4ead2f7ebb 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-core.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-core.c
@@ -289,7 +289,7 @@ static int meson_crypto_probe(struct platform_device *pdev)
error_alg:
meson_unregister_algs(mc);
error_flow:
- meson_free_chanlist(mc, MAXFLOW);
+ meson_free_chanlist(mc, MAXFLOW - 1);
clk_disable_unprepare(mc->busclk);
return err;
}
@@ -304,7 +304,7 @@ static int meson_crypto_remove(struct platform_device *pdev)
meson_unregister_algs(mc);
- meson_free_chanlist(mc, MAXFLOW);
+ meson_free_chanlist(mc, MAXFLOW - 1);
clk_disable_unprepare(mc->busclk);
return 0;
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index 91092504bc96..a6e14491e080 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/device.h>
+#include <linux/dmaengine.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
@@ -37,8 +38,6 @@
#include <crypto/xts.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
-#include <linux/platform_data/crypto-atmel.h>
-#include <dt-bindings/dma/at91.h>
#include "atmel-aes-regs.h"
#include "atmel-authenc.h"
@@ -89,7 +88,6 @@
struct atmel_aes_caps {
bool has_dualbuff;
bool has_cfb64;
- bool has_ctr32;
bool has_gcm;
bool has_xts;
bool has_authenc;
@@ -122,6 +120,7 @@ struct atmel_aes_ctr_ctx {
size_t offset;
struct scatterlist src[2];
struct scatterlist dst[2];
+ u32 blocks;
};
struct atmel_aes_gcm_ctx {
@@ -514,8 +513,37 @@ static void atmel_aes_set_iv_as_last_ciphertext_block(struct atmel_aes_dev *dd)
}
}
+static inline struct atmel_aes_ctr_ctx *
+atmel_aes_ctr_ctx_cast(struct atmel_aes_base_ctx *ctx)
+{
+ return container_of(ctx, struct atmel_aes_ctr_ctx, base);
+}
+
+static void atmel_aes_ctr_update_req_iv(struct atmel_aes_dev *dd)
+{
+ struct atmel_aes_ctr_ctx *ctx = atmel_aes_ctr_ctx_cast(dd->ctx);
+ struct skcipher_request *req = skcipher_request_cast(dd->areq);
+ struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
+ unsigned int ivsize = crypto_skcipher_ivsize(skcipher);
+ int i;
+
+ /*
+ * The CTR transfer works in fragments of data of maximum 1 MByte
+ * because of the 16 bit CTR counter embedded in the IP. When reaching
+ * here, ctx->blocks contains the number of blocks of the last fragment
+ * processed, there is no need to explicit cast it to u16.
+ */
+ for (i = 0; i < ctx->blocks; i++)
+ crypto_inc((u8 *)ctx->iv, AES_BLOCK_SIZE);
+
+ memcpy(req->iv, ctx->iv, ivsize);
+}
+
static inline int atmel_aes_complete(struct atmel_aes_dev *dd, int err)
{
+ struct skcipher_request *req = skcipher_request_cast(dd->areq);
+ struct atmel_aes_reqctx *rctx = skcipher_request_ctx(req);
+
#if IS_ENABLED(CONFIG_CRYPTO_DEV_ATMEL_AUTHENC)
if (dd->ctx->is_aead)
atmel_aes_authenc_complete(dd, err);
@@ -524,8 +552,13 @@ static inline int atmel_aes_complete(struct atmel_aes_dev *dd, int err)
clk_disable(dd->iclk);
dd->flags &= ~AES_FLAGS_BUSY;
- if (!dd->ctx->is_aead)
- atmel_aes_set_iv_as_last_ciphertext_block(dd);
+ if (!err && !dd->ctx->is_aead &&
+ (rctx->mode & AES_FLAGS_OPMODE_MASK) != AES_FLAGS_ECB) {
+ if ((rctx->mode & AES_FLAGS_OPMODE_MASK) != AES_FLAGS_CTR)
+ atmel_aes_set_iv_as_last_ciphertext_block(dd);
+ else
+ atmel_aes_ctr_update_req_iv(dd);
+ }
if (dd->is_async)
dd->areq->complete(dd->areq, err);
@@ -790,7 +823,6 @@ static int atmel_aes_dma_transfer_start(struct atmel_aes_dev *dd,
int err;
memset(&config, 0, sizeof(config));
- config.direction = dir;
config.src_addr_width = addr_width;
config.dst_addr_width = addr_width;
config.src_maxburst = maxburst;
@@ -830,27 +862,6 @@ static int atmel_aes_dma_transfer_start(struct atmel_aes_dev *dd,
return 0;
}
-static void atmel_aes_dma_transfer_stop(struct atmel_aes_dev *dd,
- enum dma_transfer_direction dir)
-{
- struct atmel_aes_dma *dma;
-
- switch (dir) {
- case DMA_MEM_TO_DEV:
- dma = &dd->src;
- break;
-
- case DMA_DEV_TO_MEM:
- dma = &dd->dst;
- break;
-
- default:
- return;
- }
-
- dmaengine_terminate_all(dma->chan);
-}
-
static int atmel_aes_dma_start(struct atmel_aes_dev *dd,
struct scatterlist *src,
struct scatterlist *dst,
@@ -909,25 +920,18 @@ static int atmel_aes_dma_start(struct atmel_aes_dev *dd,
return -EINPROGRESS;
output_transfer_stop:
- atmel_aes_dma_transfer_stop(dd, DMA_DEV_TO_MEM);
+ dmaengine_terminate_sync(dd->dst.chan);
unmap:
atmel_aes_unmap(dd);
exit:
return atmel_aes_complete(dd, err);
}
-static void atmel_aes_dma_stop(struct atmel_aes_dev *dd)
-{
- atmel_aes_dma_transfer_stop(dd, DMA_MEM_TO_DEV);
- atmel_aes_dma_transfer_stop(dd, DMA_DEV_TO_MEM);
- atmel_aes_unmap(dd);
-}
-
static void atmel_aes_dma_callback(void *data)
{
struct atmel_aes_dev *dd = data;
- atmel_aes_dma_stop(dd);
+ atmel_aes_unmap(dd);
dd->is_async = true;
(void)dd->resume(dd);
}
@@ -1004,19 +1008,14 @@ static int atmel_aes_start(struct atmel_aes_dev *dd)
atmel_aes_transfer_complete);
}
-static inline struct atmel_aes_ctr_ctx *
-atmel_aes_ctr_ctx_cast(struct atmel_aes_base_ctx *ctx)
-{
- return container_of(ctx, struct atmel_aes_ctr_ctx, base);
-}
-
static int atmel_aes_ctr_transfer(struct atmel_aes_dev *dd)
{
struct atmel_aes_ctr_ctx *ctx = atmel_aes_ctr_ctx_cast(dd->ctx);
struct skcipher_request *req = skcipher_request_cast(dd->areq);
struct scatterlist *src, *dst;
- u32 ctr, blocks;
size_t datalen;
+ u32 ctr;
+ u16 start, end;
bool use_dma, fragmented = false;
/* Check for transfer completion. */
@@ -1026,29 +1025,19 @@ static int atmel_aes_ctr_transfer(struct atmel_aes_dev *dd)
/* Compute data length. */
datalen = req->cryptlen - ctx->offset;
- blocks = DIV_ROUND_UP(datalen, AES_BLOCK_SIZE);
+ ctx->blocks = DIV_ROUND_UP(datalen, AES_BLOCK_SIZE);
ctr = be32_to_cpu(ctx->iv[3]);
- if (dd->caps.has_ctr32) {
- /* Check 32bit counter overflow. */
- u32 start = ctr;
- u32 end = start + blocks - 1;
-
- if (end < start) {
- ctr |= 0xffffffff;
- datalen = AES_BLOCK_SIZE * -start;
- fragmented = true;
- }
- } else {
- /* Check 16bit counter overflow. */
- u16 start = ctr & 0xffff;
- u16 end = start + (u16)blocks - 1;
-
- if (blocks >> 16 || end < start) {
- ctr |= 0xffff;
- datalen = AES_BLOCK_SIZE * (0x10000-start);
- fragmented = true;
- }
+
+ /* Check 16bit counter overflow. */
+ start = ctr & 0xffff;
+ end = start + ctx->blocks - 1;
+
+ if (ctx->blocks >> 16 || end < start) {
+ ctr |= 0xffff;
+ datalen = AES_BLOCK_SIZE * (0x10000 - start);
+ fragmented = true;
}
+
use_dma = (datalen >= ATMEL_AES_DMA_THRESHOLD);
/* Jump to offset. */
@@ -1131,7 +1120,8 @@ static int atmel_aes_crypt(struct skcipher_request *req, unsigned long mode)
rctx = skcipher_request_ctx(req);
rctx->mode = mode;
- if (!(mode & AES_FLAGS_ENCRYPT) && (req->src == req->dst)) {
+ if ((mode & AES_FLAGS_OPMODE_MASK) != AES_FLAGS_ECB &&
+ !(mode & AES_FLAGS_ENCRYPT) && req->src == req->dst) {
unsigned int ivsize = crypto_skcipher_ivsize(skcipher);
if (req->cryptlen >= ivsize)
@@ -1150,10 +1140,8 @@ static int atmel_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
if (keylen != AES_KEYSIZE_128 &&
keylen != AES_KEYSIZE_192 &&
- keylen != AES_KEYSIZE_256) {
- crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ keylen != AES_KEYSIZE_256)
return -EINVAL;
- }
memcpy(ctx->key, key, keylen);
ctx->keylen = keylen;
@@ -1275,12 +1263,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "ecb(aes)",
.base.cra_driver_name = "atmel-ecb-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = AES_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1292,12 +1276,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "cbc(aes)",
.base.cra_driver_name = "atmel-cbc-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = AES_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1310,12 +1290,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "ofb(aes)",
.base.cra_driver_name = "atmel-ofb-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = AES_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1328,12 +1304,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "cfb(aes)",
.base.cra_driver_name = "atmel-cfb-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = AES_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1346,12 +1318,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "cfb32(aes)",
.base.cra_driver_name = "atmel-cfb32-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = CFB32_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1364,12 +1332,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "cfb16(aes)",
.base.cra_driver_name = "atmel-cfb16-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = CFB16_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1382,12 +1346,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "cfb8(aes)",
.base.cra_driver_name = "atmel-cfb8-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = CFB8_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1400,12 +1360,8 @@ static struct skcipher_alg aes_algs[] = {
{
.base.cra_name = "ctr(aes)",
.base.cra_driver_name = "atmel-ctr-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = 1,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctr_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_ctr_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1420,12 +1376,8 @@ static struct skcipher_alg aes_algs[] = {
static struct skcipher_alg aes_cfb64_alg = {
.base.cra_name = "cfb64(aes)",
.base.cra_driver_name = "atmel-cfb64-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = CFB64_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.init = atmel_aes_init_tfm,
.min_keysize = AES_MIN_KEY_SIZE,
@@ -1762,10 +1714,8 @@ static int atmel_aes_gcm_setkey(struct crypto_aead *tfm, const u8 *key,
if (keylen != AES_KEYSIZE_256 &&
keylen != AES_KEYSIZE_192 &&
- keylen != AES_KEYSIZE_128) {
- crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ keylen != AES_KEYSIZE_128)
return -EINVAL;
- }
memcpy(ctx->key, key, keylen);
ctx->keylen = keylen;
@@ -1776,21 +1726,7 @@ static int atmel_aes_gcm_setkey(struct crypto_aead *tfm, const u8 *key,
static int atmel_aes_gcm_setauthsize(struct crypto_aead *tfm,
unsigned int authsize)
{
- /* Same as crypto_gcm_authsize() from crypto/gcm.c */
- switch (authsize) {
- case 4:
- case 8:
- case 12:
- case 13:
- case 14:
- case 15:
- case 16:
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
+ return crypto_gcm_check_authsize(authsize);
}
static int atmel_aes_gcm_encrypt(struct aead_request *req)
@@ -1825,12 +1761,8 @@ static struct aead_alg aes_gcm_alg = {
.base = {
.cra_name = "gcm(aes)",
.cra_driver_name = "atmel-gcm-aes",
- .cra_priority = ATMEL_AES_PRIORITY,
- .cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = 1,
.cra_ctxsize = sizeof(struct atmel_aes_gcm_ctx),
- .cra_alignmask = 0xf,
- .cra_module = THIS_MODULE,
},
};
@@ -1947,12 +1879,8 @@ static int atmel_aes_xts_init_tfm(struct crypto_skcipher *tfm)
static struct skcipher_alg aes_xts_alg = {
.base.cra_name = "xts(aes)",
.base.cra_driver_name = "atmel-xts-aes",
- .base.cra_priority = ATMEL_AES_PRIORITY,
- .base.cra_flags = CRYPTO_ALG_ASYNC,
.base.cra_blocksize = AES_BLOCK_SIZE,
.base.cra_ctxsize = sizeof(struct atmel_aes_xts_ctx),
- .base.cra_alignmask = 0xf,
- .base.cra_module = THIS_MODULE,
.min_keysize = 2 * AES_MIN_KEY_SIZE,
.max_keysize = 2 * AES_MAX_KEY_SIZE,
@@ -2113,7 +2041,6 @@ static int atmel_aes_authenc_setkey(struct crypto_aead *tfm, const u8 *key,
{
struct atmel_aes_authenc_ctx *ctx = crypto_aead_ctx(tfm);
struct crypto_authenc_keys keys;
- u32 flags;
int err;
if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
@@ -2123,11 +2050,9 @@ static int atmel_aes_authenc_setkey(struct crypto_aead *tfm, const u8 *key,
goto badkey;
/* Save auth key. */
- flags = crypto_aead_get_flags(tfm);
err = atmel_sha_authenc_setkey(ctx->auth,
keys.authkey, keys.authkeylen,
- &flags);
- crypto_aead_set_flags(tfm, flags & CRYPTO_TFM_RES_MASK);
+ crypto_aead_get_flags(tfm));
if (err) {
memzero_explicit(&keys, sizeof(keys));
return err;
@@ -2141,7 +2066,6 @@ static int atmel_aes_authenc_setkey(struct crypto_aead *tfm, const u8 *key,
return 0;
badkey:
- crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
memzero_explicit(&keys, sizeof(keys));
return -EINVAL;
}
@@ -2252,12 +2176,8 @@ static struct aead_alg aes_authenc_algs[] = {
.base = {
.cra_name = "authenc(hmac(sha1),cbc(aes))",
.cra_driver_name = "atmel-authenc-hmac-sha1-cbc-aes",
- .cra_priority = ATMEL_AES_PRIORITY,
- .cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct atmel_aes_authenc_ctx),
- .cra_alignmask = 0xf,
- .cra_module = THIS_MODULE,
},
},
{
@@ -2272,12 +2192,8 @@ static struct aead_alg aes_authenc_algs[] = {
.base = {
.cra_name = "authenc(hmac(sha224),cbc(aes))",
.cra_driver_name = "atmel-authenc-hmac-sha224-cbc-aes",
- .cra_priority = ATMEL_AES_PRIORITY,
- .cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct atmel_aes_authenc_ctx),
- .cra_alignmask = 0xf,
- .cra_module = THIS_MODULE,
},
},
{
@@ -2292,12 +2208,8 @@ static struct aead_alg aes_authenc_algs[] = {
.base = {
.cra_name = "authenc(hmac(sha256),cbc(aes))",
.cra_driver_name = "atmel-authenc-hmac-sha256-cbc-aes",
- .cra_priority = ATMEL_AES_PRIORITY,
- .cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct atmel_aes_authenc_ctx),
- .cra_alignmask = 0xf,
- .cra_module = THIS_MODULE,
},
},
{
@@ -2312,12 +2224,8 @@ static struct aead_alg aes_authenc_algs[] = {
.base = {
.cra_name = "authenc(hmac(sha384),cbc(aes))",
.cra_driver_name = "atmel-authenc-hmac-sha384-cbc-aes",
- .cra_priority = ATMEL_AES_PRIORITY,
- .cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct atmel_aes_authenc_ctx),
- .cra_alignmask = 0xf,
- .cra_module = THIS_MODULE,
},
},
{
@@ -2332,12 +2240,8 @@ static struct aead_alg aes_authenc_algs[] = {
.base = {
.cra_name = "authenc(hmac(sha512),cbc(aes))",
.cra_driver_name = "atmel-authenc-hmac-sha512-cbc-aes",
- .cra_priority = ATMEL_AES_PRIORITY,
- .cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct atmel_aes_authenc_ctx),
- .cra_alignmask = 0xf,
- .cra_module = THIS_MODULE,
},
},
};
@@ -2364,47 +2268,30 @@ static void atmel_aes_buff_cleanup(struct atmel_aes_dev *dd)
free_page((unsigned long)dd->buf);
}
-static bool atmel_aes_filter(struct dma_chan *chan, void *slave)
+static int atmel_aes_dma_init(struct atmel_aes_dev *dd)
{
- struct at_dma_slave *sl = slave;
-
- if (sl && sl->dma_dev == chan->device->dev) {
- chan->private = sl;
- return true;
- } else {
- return false;
- }
-}
-
-static int atmel_aes_dma_init(struct atmel_aes_dev *dd,
- struct crypto_platform_data *pdata)
-{
- struct at_dma_slave *slave;
- dma_cap_mask_t mask;
-
- dma_cap_zero(mask);
- dma_cap_set(DMA_SLAVE, mask);
+ int ret;
/* Try to grab 2 DMA channels */
- slave = &pdata->dma_slave->rxdata;
- dd->src.chan = dma_request_slave_channel_compat(mask, atmel_aes_filter,
- slave, dd->dev, "tx");
- if (!dd->src.chan)
+ dd->src.chan = dma_request_chan(dd->dev, "tx");
+ if (IS_ERR(dd->src.chan)) {
+ ret = PTR_ERR(dd->src.chan);
goto err_dma_in;
+ }
- slave = &pdata->dma_slave->txdata;
- dd->dst.chan = dma_request_slave_channel_compat(mask, atmel_aes_filter,
- slave, dd->dev, "rx");
- if (!dd->dst.chan)
+ dd->dst.chan = dma_request_chan(dd->dev, "rx");
+ if (IS_ERR(dd->dst.chan)) {
+ ret = PTR_ERR(dd->dst.chan);
goto err_dma_out;
+ }
return 0;
err_dma_out:
dma_release_channel(dd->src.chan);
err_dma_in:
- dev_warn(dd->dev, "no DMA channel available\n");
- return -ENODEV;
+ dev_err(dd->dev, "no DMA channel available\n");
+ return ret;
}
static void atmel_aes_dma_cleanup(struct atmel_aes_dev *dd)
@@ -2469,29 +2356,45 @@ static void atmel_aes_unregister_algs(struct atmel_aes_dev *dd)
crypto_unregister_skcipher(&aes_algs[i]);
}
+static void atmel_aes_crypto_alg_init(struct crypto_alg *alg)
+{
+ alg->cra_flags = CRYPTO_ALG_ASYNC;
+ alg->cra_alignmask = 0xf;
+ alg->cra_priority = ATMEL_AES_PRIORITY;
+ alg->cra_module = THIS_MODULE;
+}
+
static int atmel_aes_register_algs(struct atmel_aes_dev *dd)
{
int err, i, j;
for (i = 0; i < ARRAY_SIZE(aes_algs); i++) {
+ atmel_aes_crypto_alg_init(&aes_algs[i].base);
+
err = crypto_register_skcipher(&aes_algs[i]);
if (err)
goto err_aes_algs;
}
if (dd->caps.has_cfb64) {
+ atmel_aes_crypto_alg_init(&aes_cfb64_alg.base);
+
err = crypto_register_skcipher(&aes_cfb64_alg);
if (err)
goto err_aes_cfb64_alg;
}
if (dd->caps.has_gcm) {
+ atmel_aes_crypto_alg_init(&aes_gcm_alg.base);
+
err = crypto_register_aead(&aes_gcm_alg);
if (err)
goto err_aes_gcm_alg;
}
if (dd->caps.has_xts) {
+ atmel_aes_crypto_alg_init(&aes_xts_alg.base);
+
err = crypto_register_skcipher(&aes_xts_alg);
if (err)
goto err_aes_xts_alg;
@@ -2500,6 +2403,8 @@ static int atmel_aes_register_algs(struct atmel_aes_dev *dd)
#if IS_ENABLED(CONFIG_CRYPTO_DEV_ATMEL_AUTHENC)
if (dd->caps.has_authenc) {
for (i = 0; i < ARRAY_SIZE(aes_authenc_algs); i++) {
+ atmel_aes_crypto_alg_init(&aes_authenc_algs[i].base);
+
err = crypto_register_aead(&aes_authenc_algs[i]);
if (err)
goto err_aes_authenc_alg;
@@ -2533,7 +2438,6 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
{
dd->caps.has_dualbuff = 0;
dd->caps.has_cfb64 = 0;
- dd->caps.has_ctr32 = 0;
dd->caps.has_gcm = 0;
dd->caps.has_xts = 0;
dd->caps.has_authenc = 0;
@@ -2544,7 +2448,6 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
case 0x500:
dd->caps.has_dualbuff = 1;
dd->caps.has_cfb64 = 1;
- dd->caps.has_ctr32 = 1;
dd->caps.has_gcm = 1;
dd->caps.has_xts = 1;
dd->caps.has_authenc = 1;
@@ -2553,7 +2456,6 @@ static void atmel_aes_get_cap(struct atmel_aes_dev *dd)
case 0x200:
dd->caps.has_dualbuff = 1;
dd->caps.has_cfb64 = 1;
- dd->caps.has_ctr32 = 1;
dd->caps.has_gcm = 1;
dd->caps.max_burst_size = 4;
break;
@@ -2577,65 +2479,18 @@ static const struct of_device_id atmel_aes_dt_ids[] = {
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, atmel_aes_dt_ids);
-
-static struct crypto_platform_data *atmel_aes_of_init(struct platform_device *pdev)
-{
- struct device_node *np = pdev->dev.of_node;
- struct crypto_platform_data *pdata;
-
- if (!np) {
- dev_err(&pdev->dev, "device node not found\n");
- return ERR_PTR(-EINVAL);
- }
-
- pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
- return ERR_PTR(-ENOMEM);
-
- pdata->dma_slave = devm_kzalloc(&pdev->dev,
- sizeof(*(pdata->dma_slave)),
- GFP_KERNEL);
- if (!pdata->dma_slave) {
- devm_kfree(&pdev->dev, pdata);
- return ERR_PTR(-ENOMEM);
- }
-
- return pdata;
-}
-#else
-static inline struct crypto_platform_data *atmel_aes_of_init(struct platform_device *pdev)
-{
- return ERR_PTR(-EINVAL);
-}
#endif
static int atmel_aes_probe(struct platform_device *pdev)
{
struct atmel_aes_dev *aes_dd;
- struct crypto_platform_data *pdata;
struct device *dev = &pdev->dev;
struct resource *aes_res;
int err;
- pdata = pdev->dev.platform_data;
- if (!pdata) {
- pdata = atmel_aes_of_init(pdev);
- if (IS_ERR(pdata)) {
- err = PTR_ERR(pdata);
- goto aes_dd_err;
- }
- }
-
- if (!pdata->dma_slave) {
- err = -ENXIO;
- goto aes_dd_err;
- }
-
aes_dd = devm_kzalloc(&pdev->dev, sizeof(*aes_dd), GFP_KERNEL);
- if (aes_dd == NULL) {
- err = -ENOMEM;
- goto aes_dd_err;
- }
+ if (!aes_dd)
+ return -ENOMEM;
aes_dd->dev = dev;
@@ -2656,7 +2511,7 @@ static int atmel_aes_probe(struct platform_device *pdev)
if (!aes_res) {
dev_err(dev, "no MEM resource info\n");
err = -ENODEV;
- goto res_err;
+ goto err_tasklet_kill;
}
aes_dd->phys_base = aes_res->start;
@@ -2664,14 +2519,14 @@ static int atmel_aes_probe(struct platform_device *pdev)
aes_dd->irq = platform_get_irq(pdev, 0);
if (aes_dd->irq < 0) {
err = aes_dd->irq;
- goto res_err;
+ goto err_tasklet_kill;
}
err = devm_request_irq(&pdev->dev, aes_dd->irq, atmel_aes_irq,
IRQF_SHARED, "atmel-aes", aes_dd);
if (err) {
dev_err(dev, "unable to request aes irq.\n");
- goto res_err;
+ goto err_tasklet_kill;
}
/* Initializing the clock */
@@ -2679,40 +2534,40 @@ static int atmel_aes_probe(struct platform_device *pdev)
if (IS_ERR(aes_dd->iclk)) {
dev_err(dev, "clock initialization failed.\n");
err = PTR_ERR(aes_dd->iclk);
- goto res_err;
+ goto err_tasklet_kill;
}
aes_dd->io_base = devm_ioremap_resource(&pdev->dev, aes_res);
if (IS_ERR(aes_dd->io_base)) {
dev_err(dev, "can't ioremap\n");
err = PTR_ERR(aes_dd->io_base);
- goto res_err;
+ goto err_tasklet_kill;
}
err = clk_prepare(aes_dd->iclk);
if (err)
- goto res_err;
+ goto err_tasklet_kill;
err = atmel_aes_hw_version_init(aes_dd);
if (err)
- goto iclk_unprepare;
+ goto err_iclk_unprepare;
atmel_aes_get_cap(aes_dd);
#if IS_ENABLED(CONFIG_CRYPTO_DEV_ATMEL_AUTHENC)
if (aes_dd->caps.has_authenc && !atmel_sha_authenc_is_ready()) {
err = -EPROBE_DEFER;
- goto iclk_unprepare;
+ goto err_iclk_unprepare;
}
#endif
err = atmel_aes_buff_init(aes_dd);
if (err)
- goto err_aes_buff;
+ goto err_iclk_unprepare;
- err = atmel_aes_dma_init(aes_dd, pdata);
+ err = atmel_aes_dma_init(aes_dd);
if (err)
- goto err_aes_dma;
+ goto err_buff_cleanup;
spin_lock(&atmel_aes.lock);
list_add_tail(&aes_dd->list, &atmel_aes.dev_list);
@@ -2733,17 +2588,13 @@ err_algs:
list_del(&aes_dd->list);
spin_unlock(&atmel_aes.lock);
atmel_aes_dma_cleanup(aes_dd);
-err_aes_dma:
+err_buff_cleanup:
atmel_aes_buff_cleanup(aes_dd);
-err_aes_buff:
-iclk_unprepare:
+err_iclk_unprepare:
clk_unprepare(aes_dd->iclk);
-res_err:
+err_tasklet_kill:
tasklet_kill(&aes_dd->done_task);
tasklet_kill(&aes_dd->queue_task);
-aes_dd_err:
- if (err != -EPROBE_DEFER)
- dev_err(dev, "initialization failed.\n");
return err;
}
diff --git a/drivers/crypto/atmel-authenc.h b/drivers/crypto/atmel-authenc.h
index d6de810df44f..c6530a1c8c20 100644
--- a/drivers/crypto/atmel-authenc.h
+++ b/drivers/crypto/atmel-authenc.h
@@ -30,8 +30,7 @@ unsigned int atmel_sha_authenc_get_reqsize(void);
struct atmel_sha_authenc_ctx *atmel_sha_authenc_spawn(unsigned long mode);
void atmel_sha_authenc_free(struct atmel_sha_authenc_ctx *auth);
int atmel_sha_authenc_setkey(struct atmel_sha_authenc_ctx *auth,
- const u8 *key, unsigned int keylen,
- u32 *flags);
+ const u8 *key, unsigned int keylen, u32 flags);
int atmel_sha_authenc_schedule(struct ahash_request *req,
struct atmel_sha_authenc_ctx *auth,
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index 8ea0e4bcde0d..e536e2a6bbd8 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/device.h>
+#include <linux/dmaengine.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
@@ -36,10 +37,11 @@
#include <crypto/sha.h>
#include <crypto/hash.h>
#include <crypto/internal/hash.h>
-#include <linux/platform_data/crypto-atmel.h>
#include "atmel-sha-regs.h"
#include "atmel-authenc.h"
+#define ATMEL_SHA_PRIORITY 300
+
/* SHA flags */
#define SHA_FLAGS_BUSY BIT(0)
#define SHA_FLAGS_FINAL BIT(1)
@@ -134,7 +136,6 @@ struct atmel_sha_dev {
void __iomem *io_base;
spinlock_t lock;
- int err;
struct tasklet_struct done_task;
struct tasklet_struct queue_task;
@@ -851,7 +852,7 @@ static int atmel_sha_update_dma_start(struct atmel_sha_dev *dd)
0, final);
}
-static int atmel_sha_update_dma_stop(struct atmel_sha_dev *dd)
+static void atmel_sha_update_dma_stop(struct atmel_sha_dev *dd)
{
struct atmel_sha_reqctx *ctx = ahash_request_ctx(dd->req);
@@ -870,8 +871,6 @@ static int atmel_sha_update_dma_stop(struct atmel_sha_dev *dd)
dma_unmap_single(dd->dev, ctx->dma_addr, ctx->buflen +
ctx->block_size, DMA_TO_DEVICE);
}
-
- return 0;
}
static int atmel_sha_update_req(struct atmel_sha_dev *dd)
@@ -1025,7 +1024,6 @@ static int atmel_sha_hw_init(struct atmel_sha_dev *dd)
if (!(SHA_FLAGS_INIT & dd->flags)) {
atmel_sha_write(dd, SHA_CR, SHA_CR_SWRST);
dd->flags |= SHA_FLAGS_INIT;
- dd->err = 0;
}
return 0;
@@ -1036,9 +1034,13 @@ static inline unsigned int atmel_sha_get_version(struct atmel_sha_dev *dd)
return atmel_sha_read(dd, SHA_HW_VERSION) & 0x00000fff;
}
-static void atmel_sha_hw_version_init(struct atmel_sha_dev *dd)
+static int atmel_sha_hw_version_init(struct atmel_sha_dev *dd)
{
- atmel_sha_hw_init(dd);
+ int err;
+
+ err = atmel_sha_hw_init(dd);
+ if (err)
+ return err;
dd->hw_version = atmel_sha_get_version(dd);
@@ -1046,6 +1048,8 @@ static void atmel_sha_hw_version_init(struct atmel_sha_dev *dd)
"version: 0x%x\n", dd->hw_version);
clk_disable(dd->iclk);
+
+ return 0;
}
static int atmel_sha_handle_queue(struct atmel_sha_dev *dd,
@@ -1248,130 +1252,66 @@ static int atmel_sha_cra_init(struct crypto_tfm *tfm)
return 0;
}
+static void atmel_sha_alg_init(struct ahash_alg *alg)
+{
+ alg->halg.base.cra_priority = ATMEL_SHA_PRIORITY;
+ alg->halg.base.cra_flags = CRYPTO_ALG_ASYNC;
+ alg->halg.base.cra_ctxsize = sizeof(struct atmel_sha_ctx);
+ alg->halg.base.cra_module = THIS_MODULE;
+ alg->halg.base.cra_init = atmel_sha_cra_init;
+
+ alg->halg.statesize = sizeof(struct atmel_sha_reqctx);
+
+ alg->init = atmel_sha_init;
+ alg->update = atmel_sha_update;
+ alg->final = atmel_sha_final;
+ alg->finup = atmel_sha_finup;
+ alg->digest = atmel_sha_digest;
+ alg->export = atmel_sha_export;
+ alg->import = atmel_sha_import;
+}
+
static struct ahash_alg sha_1_256_algs[] = {
{
- .init = atmel_sha_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .finup = atmel_sha_finup,
- .digest = atmel_sha_digest,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA1_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "sha1",
- .cra_driver_name = "atmel-sha1",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_cra_init,
- }
- }
+ .halg.base.cra_name = "sha1",
+ .halg.base.cra_driver_name = "atmel-sha1",
+ .halg.base.cra_blocksize = SHA1_BLOCK_SIZE,
+
+ .halg.digestsize = SHA1_DIGEST_SIZE,
},
{
- .init = atmel_sha_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .finup = atmel_sha_finup,
- .digest = atmel_sha_digest,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA256_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "sha256",
- .cra_driver_name = "atmel-sha256",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA256_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_cra_init,
- }
- }
+ .halg.base.cra_name = "sha256",
+ .halg.base.cra_driver_name = "atmel-sha256",
+ .halg.base.cra_blocksize = SHA256_BLOCK_SIZE,
+
+ .halg.digestsize = SHA256_DIGEST_SIZE,
},
};
static struct ahash_alg sha_224_alg = {
- .init = atmel_sha_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .finup = atmel_sha_finup,
- .digest = atmel_sha_digest,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA224_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "sha224",
- .cra_driver_name = "atmel-sha224",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA224_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_cra_init,
- }
- }
+ .halg.base.cra_name = "sha224",
+ .halg.base.cra_driver_name = "atmel-sha224",
+ .halg.base.cra_blocksize = SHA224_BLOCK_SIZE,
+
+ .halg.digestsize = SHA224_DIGEST_SIZE,
};
static struct ahash_alg sha_384_512_algs[] = {
{
- .init = atmel_sha_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .finup = atmel_sha_finup,
- .digest = atmel_sha_digest,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA384_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "sha384",
- .cra_driver_name = "atmel-sha384",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA384_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_ctx),
- .cra_alignmask = 0x3,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_cra_init,
- }
- }
+ .halg.base.cra_name = "sha384",
+ .halg.base.cra_driver_name = "atmel-sha384",
+ .halg.base.cra_blocksize = SHA384_BLOCK_SIZE,
+ .halg.base.cra_alignmask = 0x3,
+
+ .halg.digestsize = SHA384_DIGEST_SIZE,
},
{
- .init = atmel_sha_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .finup = atmel_sha_finup,
- .digest = atmel_sha_digest,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA512_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "sha512",
- .cra_driver_name = "atmel-sha512",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA512_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_ctx),
- .cra_alignmask = 0x3,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_cra_init,
- }
- }
+ .halg.base.cra_name = "sha512",
+ .halg.base.cra_driver_name = "atmel-sha512",
+ .halg.base.cra_blocksize = SHA512_BLOCK_SIZE,
+ .halg.base.cra_alignmask = 0x3,
+
+ .halg.digestsize = SHA512_DIGEST_SIZE,
},
};
@@ -1395,10 +1335,6 @@ static int atmel_sha_done(struct atmel_sha_dev *dd)
if (SHA_FLAGS_DMA_ACTIVE & dd->flags) {
dd->flags &= ~SHA_FLAGS_DMA_ACTIVE;
atmel_sha_update_dma_stop(dd);
- if (dd->err) {
- err = dd->err;
- goto finish;
- }
}
if (SHA_FLAGS_OUTPUT_READY & dd->flags) {
/* hash or semi-hash ready */
@@ -1493,7 +1429,6 @@ static void atmel_sha_dma_callback2(void *data)
struct scatterlist *sg;
int nents;
- dmaengine_terminate_all(dma->chan);
dma_unmap_sg(dd->dev, dma->sg, dma->nents, DMA_TO_DEVICE);
sg = dma->sg;
@@ -1918,12 +1853,7 @@ static int atmel_sha_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
{
struct atmel_sha_hmac_ctx *hmac = crypto_ahash_ctx(tfm);
- if (atmel_sha_hmac_key_set(&hmac->hkey, key, keylen)) {
- crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
-
- return 0;
+ return atmel_sha_hmac_key_set(&hmac->hkey, key, keylen);
}
static int atmel_sha_hmac_init(struct ahash_request *req)
@@ -2084,131 +2014,61 @@ static void atmel_sha_hmac_cra_exit(struct crypto_tfm *tfm)
atmel_sha_hmac_key_release(&hmac->hkey);
}
+static void atmel_sha_hmac_alg_init(struct ahash_alg *alg)
+{
+ alg->halg.base.cra_priority = ATMEL_SHA_PRIORITY;
+ alg->halg.base.cra_flags = CRYPTO_ALG_ASYNC;
+ alg->halg.base.cra_ctxsize = sizeof(struct atmel_sha_hmac_ctx);
+ alg->halg.base.cra_module = THIS_MODULE;
+ alg->halg.base.cra_init = atmel_sha_hmac_cra_init;
+ alg->halg.base.cra_exit = atmel_sha_hmac_cra_exit;
+
+ alg->halg.statesize = sizeof(struct atmel_sha_reqctx);
+
+ alg->init = atmel_sha_hmac_init;
+ alg->update = atmel_sha_update;
+ alg->final = atmel_sha_final;
+ alg->digest = atmel_sha_hmac_digest;
+ alg->setkey = atmel_sha_hmac_setkey;
+ alg->export = atmel_sha_export;
+ alg->import = atmel_sha_import;
+}
+
static struct ahash_alg sha_hmac_algs[] = {
{
- .init = atmel_sha_hmac_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .digest = atmel_sha_hmac_digest,
- .setkey = atmel_sha_hmac_setkey,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA1_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "hmac(sha1)",
- .cra_driver_name = "atmel-hmac-sha1",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_hmac_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_hmac_cra_init,
- .cra_exit = atmel_sha_hmac_cra_exit,
- }
- }
+ .halg.base.cra_name = "hmac(sha1)",
+ .halg.base.cra_driver_name = "atmel-hmac-sha1",
+ .halg.base.cra_blocksize = SHA1_BLOCK_SIZE,
+
+ .halg.digestsize = SHA1_DIGEST_SIZE,
},
{
- .init = atmel_sha_hmac_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .digest = atmel_sha_hmac_digest,
- .setkey = atmel_sha_hmac_setkey,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA224_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "hmac(sha224)",
- .cra_driver_name = "atmel-hmac-sha224",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA224_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_hmac_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_hmac_cra_init,
- .cra_exit = atmel_sha_hmac_cra_exit,
- }
- }
+ .halg.base.cra_name = "hmac(sha224)",
+ .halg.base.cra_driver_name = "atmel-hmac-sha224",
+ .halg.base.cra_blocksize = SHA224_BLOCK_SIZE,
+
+ .halg.digestsize = SHA224_DIGEST_SIZE,
},
{
- .init = atmel_sha_hmac_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .digest = atmel_sha_hmac_digest,
- .setkey = atmel_sha_hmac_setkey,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA256_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "hmac(sha256)",
- .cra_driver_name = "atmel-hmac-sha256",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA256_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_hmac_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_hmac_cra_init,
- .cra_exit = atmel_sha_hmac_cra_exit,
- }
- }
+ .halg.base.cra_name = "hmac(sha256)",
+ .halg.base.cra_driver_name = "atmel-hmac-sha256",
+ .halg.base.cra_blocksize = SHA256_BLOCK_SIZE,
+
+ .halg.digestsize = SHA256_DIGEST_SIZE,
},
{
- .init = atmel_sha_hmac_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .digest = atmel_sha_hmac_digest,
- .setkey = atmel_sha_hmac_setkey,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA384_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "hmac(sha384)",
- .cra_driver_name = "atmel-hmac-sha384",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA384_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_hmac_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_hmac_cra_init,
- .cra_exit = atmel_sha_hmac_cra_exit,
- }
- }
+ .halg.base.cra_name = "hmac(sha384)",
+ .halg.base.cra_driver_name = "atmel-hmac-sha384",
+ .halg.base.cra_blocksize = SHA384_BLOCK_SIZE,
+
+ .halg.digestsize = SHA384_DIGEST_SIZE,
},
{
- .init = atmel_sha_hmac_init,
- .update = atmel_sha_update,
- .final = atmel_sha_final,
- .digest = atmel_sha_hmac_digest,
- .setkey = atmel_sha_hmac_setkey,
- .export = atmel_sha_export,
- .import = atmel_sha_import,
- .halg = {
- .digestsize = SHA512_DIGEST_SIZE,
- .statesize = sizeof(struct atmel_sha_reqctx),
- .base = {
- .cra_name = "hmac(sha512)",
- .cra_driver_name = "atmel-hmac-sha512",
- .cra_priority = 100,
- .cra_flags = CRYPTO_ALG_ASYNC,
- .cra_blocksize = SHA512_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct atmel_sha_hmac_ctx),
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_init = atmel_sha_hmac_cra_init,
- .cra_exit = atmel_sha_hmac_cra_exit,
- }
- }
+ .halg.base.cra_name = "hmac(sha512)",
+ .halg.base.cra_driver_name = "atmel-hmac-sha512",
+ .halg.base.cra_blocksize = SHA512_BLOCK_SIZE,
+
+ .halg.digestsize = SHA512_DIGEST_SIZE,
},
};
@@ -2347,18 +2207,13 @@ void atmel_sha_authenc_free(struct atmel_sha_authenc_ctx *auth)
EXPORT_SYMBOL_GPL(atmel_sha_authenc_free);
int atmel_sha_authenc_setkey(struct atmel_sha_authenc_ctx *auth,
- const u8 *key, unsigned int keylen,
- u32 *flags)
+ const u8 *key, unsigned int keylen, u32 flags)
{
struct crypto_ahash *tfm = auth->tfm;
- int err;
crypto_ahash_clear_flags(tfm, CRYPTO_TFM_REQ_MASK);
- crypto_ahash_set_flags(tfm, *flags & CRYPTO_TFM_REQ_MASK);
- err = crypto_ahash_setkey(tfm, key, keylen);
- *flags = crypto_ahash_get_flags(tfm);
-
- return err;
+ crypto_ahash_set_flags(tfm, flags & CRYPTO_TFM_REQ_MASK);
+ return crypto_ahash_setkey(tfm, key, keylen);
}
EXPORT_SYMBOL_GPL(atmel_sha_authenc_setkey);
@@ -2561,12 +2416,16 @@ static int atmel_sha_register_algs(struct atmel_sha_dev *dd)
int err, i, j;
for (i = 0; i < ARRAY_SIZE(sha_1_256_algs); i++) {
+ atmel_sha_alg_init(&sha_1_256_algs[i]);
+
err = crypto_register_ahash(&sha_1_256_algs[i]);
if (err)
goto err_sha_1_256_algs;
}
if (dd->caps.has_sha224) {
+ atmel_sha_alg_init(&sha_224_alg);
+
err = crypto_register_ahash(&sha_224_alg);
if (err)
goto err_sha_224_algs;
@@ -2574,6 +2433,8 @@ static int atmel_sha_register_algs(struct atmel_sha_dev *dd)
if (dd->caps.has_sha_384_512) {
for (i = 0; i < ARRAY_SIZE(sha_384_512_algs); i++) {
+ atmel_sha_alg_init(&sha_384_512_algs[i]);
+
err = crypto_register_ahash(&sha_384_512_algs[i]);
if (err)
goto err_sha_384_512_algs;
@@ -2582,6 +2443,8 @@ static int atmel_sha_register_algs(struct atmel_sha_dev *dd)
if (dd->caps.has_hmac) {
for (i = 0; i < ARRAY_SIZE(sha_hmac_algs); i++) {
+ atmel_sha_hmac_alg_init(&sha_hmac_algs[i]);
+
err = crypto_register_ahash(&sha_hmac_algs[i]);
if (err)
goto err_sha_hmac_algs;
@@ -2608,35 +2471,14 @@ err_sha_1_256_algs:
return err;
}
-static bool atmel_sha_filter(struct dma_chan *chan, void *slave)
+static int atmel_sha_dma_init(struct atmel_sha_dev *dd)
{
- struct at_dma_slave *sl = slave;
-
- if (sl && sl->dma_dev == chan->device->dev) {
- chan->private = sl;
- return true;
- } else {
- return false;
+ dd->dma_lch_in.chan = dma_request_chan(dd->dev, "tx");
+ if (IS_ERR(dd->dma_lch_in.chan)) {
+ dev_err(dd->dev, "DMA channel is not available\n");
+ return PTR_ERR(dd->dma_lch_in.chan);
}
-}
-static int atmel_sha_dma_init(struct atmel_sha_dev *dd,
- struct crypto_platform_data *pdata)
-{
- dma_cap_mask_t mask_in;
-
- /* Try to grab DMA channel */
- dma_cap_zero(mask_in);
- dma_cap_set(DMA_SLAVE, mask_in);
-
- dd->dma_lch_in.chan = dma_request_slave_channel_compat(mask_in,
- atmel_sha_filter, &pdata->dma_slave->rxdata, dd->dev, "tx");
- if (!dd->dma_lch_in.chan) {
- dev_warn(dd->dev, "no DMA channel available\n");
- return -ENODEV;
- }
-
- dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
dd->dma_lch_in.dma_conf.dst_addr = dd->phys_base +
SHA_REG_DIN(0);
dd->dma_lch_in.dma_conf.src_maxburst = 1;
@@ -2709,49 +2551,18 @@ static const struct of_device_id atmel_sha_dt_ids[] = {
};
MODULE_DEVICE_TABLE(of, atmel_sha_dt_ids);
-
-static struct crypto_platform_data *atmel_sha_of_init(struct platform_device *pdev)
-{
- struct device_node *np = pdev->dev.of_node;
- struct crypto_platform_data *pdata;
-
- if (!np) {
- dev_err(&pdev->dev, "device node not found\n");
- return ERR_PTR(-EINVAL);
- }
-
- pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
- return ERR_PTR(-ENOMEM);
-
- pdata->dma_slave = devm_kzalloc(&pdev->dev,
- sizeof(*(pdata->dma_slave)),
- GFP_KERNEL);
- if (!pdata->dma_slave)
- return ERR_PTR(-ENOMEM);
-
- return pdata;
-}
-#else /* CONFIG_OF */
-static inline struct crypto_platform_data *atmel_sha_of_init(struct platform_device *dev)
-{
- return ERR_PTR(-EINVAL);
-}
#endif
static int atmel_sha_probe(struct platform_device *pdev)
{
struct atmel_sha_dev *sha_dd;
- struct crypto_platform_data *pdata;
struct device *dev = &pdev->dev;
struct resource *sha_res;
int err;
sha_dd = devm_kzalloc(&pdev->dev, sizeof(*sha_dd), GFP_KERNEL);
- if (sha_dd == NULL) {
- err = -ENOMEM;
- goto sha_dd_err;
- }
+ if (!sha_dd)
+ return -ENOMEM;
sha_dd->dev = dev;
@@ -2772,7 +2583,7 @@ static int atmel_sha_probe(struct platform_device *pdev)
if (!sha_res) {
dev_err(dev, "no MEM resource info\n");
err = -ENODEV;
- goto res_err;
+ goto err_tasklet_kill;
}
sha_dd->phys_base = sha_res->start;
@@ -2780,14 +2591,14 @@ static int atmel_sha_probe(struct platform_device *pdev)
sha_dd->irq = platform_get_irq(pdev, 0);
if (sha_dd->irq < 0) {
err = sha_dd->irq;
- goto res_err;
+ goto err_tasklet_kill;
}
err = devm_request_irq(&pdev->dev, sha_dd->irq, atmel_sha_irq,
IRQF_SHARED, "atmel-sha", sha_dd);
if (err) {
dev_err(dev, "unable to request sha irq.\n");
- goto res_err;
+ goto err_tasklet_kill;
}
/* Initializing the clock */
@@ -2795,41 +2606,30 @@ static int atmel_sha_probe(struct platform_device *pdev)
if (IS_ERR(sha_dd->iclk)) {
dev_err(dev, "clock initialization failed.\n");
err = PTR_ERR(sha_dd->iclk);
- goto res_err;
+ goto err_tasklet_kill;
}
sha_dd->io_base = devm_ioremap_resource(&pdev->dev, sha_res);
if (IS_ERR(sha_dd->io_base)) {
dev_err(dev, "can't ioremap\n");
err = PTR_ERR(sha_dd->io_base);
- goto res_err;
+ goto err_tasklet_kill;
}
err = clk_prepare(sha_dd->iclk);
if (err)
- goto res_err;
+ goto err_tasklet_kill;
- atmel_sha_hw_version_init(sha_dd);
+ err = atmel_sha_hw_version_init(sha_dd);
+ if (err)
+ goto err_iclk_unprepare;
atmel_sha_get_cap(sha_dd);
if (sha_dd->caps.has_dma) {
- pdata = pdev->dev.platform_data;
- if (!pdata) {
- pdata = atmel_sha_of_init(pdev);
- if (IS_ERR(pdata)) {
- dev_err(&pdev->dev, "platform data not available\n");
- err = PTR_ERR(pdata);
- goto iclk_unprepare;
- }
- }
- if (!pdata->dma_slave) {
- err = -ENXIO;
- goto iclk_unprepare;
- }
- err = atmel_sha_dma_init(sha_dd, pdata);
+ err = atmel_sha_dma_init(sha_dd);
if (err)
- goto err_sha_dma;
+ goto err_iclk_unprepare;
dev_info(dev, "using %s for DMA transfers\n",
dma_chan_name(sha_dd->dma_lch_in.chan));
@@ -2855,14 +2655,11 @@ err_algs:
spin_unlock(&atmel_sha.lock);
if (sha_dd->caps.has_dma)
atmel_sha_dma_cleanup(sha_dd);
-err_sha_dma:
-iclk_unprepare:
+err_iclk_unprepare:
clk_unprepare(sha_dd->iclk);
-res_err:
+err_tasklet_kill:
tasklet_kill(&sha_dd->queue_task);
tasklet_kill(&sha_dd->done_task);
-sha_dd_err:
- dev_err(dev, "initialization failed.\n");
return err;
}
diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index 0c1f79b30fc1..ed40dbb98c6b 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/device.h>
+#include <linux/dmaengine.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
@@ -30,31 +31,32 @@
#include <linux/of_device.h>
#include <linux/delay.h>
#include <linux/crypto.h>
-#include <linux/cryptohash.h>
#include <crypto/scatterwalk.h>
#include <crypto/algapi.h>
#include <crypto/internal/des.h>
-#include <crypto/hash.h>
-#include <crypto/internal/hash.h>
#include <crypto/internal/skcipher.h>
-#include <linux/platform_data/crypto-atmel.h>
#include "atmel-tdes-regs.h"
+#define ATMEL_TDES_PRIORITY 300
+
/* TDES flags */
-#define TDES_FLAGS_MODE_MASK 0x00ff
-#define TDES_FLAGS_ENCRYPT BIT(0)
-#define TDES_FLAGS_CBC BIT(1)
-#define TDES_FLAGS_CFB BIT(2)
-#define TDES_FLAGS_CFB8 BIT(3)
-#define TDES_FLAGS_CFB16 BIT(4)
-#define TDES_FLAGS_CFB32 BIT(5)
-#define TDES_FLAGS_CFB64 BIT(6)
-#define TDES_FLAGS_OFB BIT(7)
-
-#define TDES_FLAGS_INIT BIT(16)
-#define TDES_FLAGS_FAST BIT(17)
-#define TDES_FLAGS_BUSY BIT(18)
-#define TDES_FLAGS_DMA BIT(19)
+/* Reserve bits [17:16], [13:12], [2:0] for AES Mode Register */
+#define TDES_FLAGS_ENCRYPT TDES_MR_CYPHER_ENC
+#define TDES_FLAGS_OPMODE_MASK (TDES_MR_OPMOD_MASK | TDES_MR_CFBS_MASK)
+#define TDES_FLAGS_ECB TDES_MR_OPMOD_ECB
+#define TDES_FLAGS_CBC TDES_MR_OPMOD_CBC
+#define TDES_FLAGS_OFB TDES_MR_OPMOD_OFB
+#define TDES_FLAGS_CFB64 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_64b)
+#define TDES_FLAGS_CFB32 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_32b)
+#define TDES_FLAGS_CFB16 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_16b)
+#define TDES_FLAGS_CFB8 (TDES_MR_OPMOD_CFB | TDES_MR_CFBS_8b)
+
+#define TDES_FLAGS_MODE_MASK (TDES_FLAGS_OPMODE_MASK | TDES_FLAGS_ENCRYPT)
+
+#define TDES_FLAGS_INIT BIT(3)
+#define TDES_FLAGS_FAST BIT(4)
+#define TDES_FLAGS_BUSY BIT(5)
+#define TDES_FLAGS_DMA BIT(6)
#define ATMEL_TDES_QUEUE_LENGTH 50
@@ -100,7 +102,6 @@ struct atmel_tdes_dev {
int irq;
unsigned long flags;
- int err;
spinlock_t lock;
struct crypto_queue queue;
@@ -189,7 +190,7 @@ static inline void atmel_tdes_write(struct atmel_tdes_dev *dd,
}
static void atmel_tdes_write_n(struct atmel_tdes_dev *dd, u32 offset,
- u32 *value, int count)
+ const u32 *value, int count)
{
for (; count--; value++, offset += 4)
atmel_tdes_write(dd, offset, *value);
@@ -226,7 +227,6 @@ static int atmel_tdes_hw_init(struct atmel_tdes_dev *dd)
if (!(dd->flags & TDES_FLAGS_INIT)) {
atmel_tdes_write(dd, TDES_CR, TDES_CR_SWRST);
dd->flags |= TDES_FLAGS_INIT;
- dd->err = 0;
}
return 0;
@@ -237,9 +237,13 @@ static inline unsigned int atmel_tdes_get_version(struct atmel_tdes_dev *dd)
return atmel_tdes_read(dd, TDES_HW_VERSION) & 0x00000fff;
}
-static void atmel_tdes_hw_version_init(struct atmel_tdes_dev *dd)
+static int atmel_tdes_hw_version_init(struct atmel_tdes_dev *dd)
{
- atmel_tdes_hw_init(dd);
+ int err;
+
+ err = atmel_tdes_hw_init(dd);
+ if (err)
+ return err;
dd->hw_version = atmel_tdes_get_version(dd);
@@ -247,6 +251,8 @@ static void atmel_tdes_hw_version_init(struct atmel_tdes_dev *dd)
"version: 0x%x\n", dd->hw_version);
clk_disable_unprepare(dd->iclk);
+
+ return 0;
}
static void atmel_tdes_dma_callback(void *data)
@@ -260,7 +266,7 @@ static void atmel_tdes_dma_callback(void *data)
static int atmel_tdes_write_ctrl(struct atmel_tdes_dev *dd)
{
int err;
- u32 valcr = 0, valmr = TDES_MR_SMOD_PDC;
+ u32 valmr = TDES_MR_SMOD_PDC;
err = atmel_tdes_hw_init(dd);
@@ -282,36 +288,15 @@ static int atmel_tdes_write_ctrl(struct atmel_tdes_dev *dd)
valmr |= TDES_MR_TDESMOD_DES;
}
- if (dd->flags & TDES_FLAGS_CBC) {
- valmr |= TDES_MR_OPMOD_CBC;
- } else if (dd->flags & TDES_FLAGS_CFB) {
- valmr |= TDES_MR_OPMOD_CFB;
-
- if (dd->flags & TDES_FLAGS_CFB8)
- valmr |= TDES_MR_CFBS_8b;
- else if (dd->flags & TDES_FLAGS_CFB16)
- valmr |= TDES_MR_CFBS_16b;
- else if (dd->flags & TDES_FLAGS_CFB32)
- valmr |= TDES_MR_CFBS_32b;
- else if (dd->flags & TDES_FLAGS_CFB64)
- valmr |= TDES_MR_CFBS_64b;
- } else if (dd->flags & TDES_FLAGS_OFB) {
- valmr |= TDES_MR_OPMOD_OFB;
- }
-
- if ((dd->flags & TDES_FLAGS_ENCRYPT) || (dd->flags & TDES_FLAGS_OFB))
- valmr |= TDES_MR_CYPHER_ENC;
+ valmr |= dd->flags & TDES_FLAGS_MODE_MASK;
- atmel_tdes_write(dd, TDES_CR, valcr);
atmel_tdes_write(dd, TDES_MR, valmr);
atmel_tdes_write_n(dd, TDES_KEY1W1R, dd->ctx->key,
dd->ctx->keylen >> 2);
- if (((dd->flags & TDES_FLAGS_CBC) || (dd->flags & TDES_FLAGS_CFB) ||
- (dd->flags & TDES_FLAGS_OFB)) && dd->req->iv) {
+ if (dd->req->iv && (valmr & TDES_MR_OPMOD_MASK) != TDES_MR_OPMOD_ECB)
atmel_tdes_write_n(dd, TDES_IV1R, (void *)dd->req->iv, 2);
- }
return 0;
}
@@ -397,11 +382,11 @@ static void atmel_tdes_buff_cleanup(struct atmel_tdes_dev *dd)