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There's no reason to keep the RODATA macro: replace the callers with
the expected RO_DATA macro.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: https://lkml.kernel.org/r/20191029211351.13243-12-keescook@chromium.org
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The .notes section should be non-executable read-only data. As such,
move it to the RO_DATA macro instead of being per-architecture defined.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # s390
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: https://lkml.kernel.org/r/20191029211351.13243-11-keescook@chromium.org
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In preparation for moving NOTES into RO_DATA, make the Program Header
assignment restoration be part of the NOTES macro itself.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # s390
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: https://lkml.kernel.org/r/20191029211351.13243-10-keescook@chromium.org
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In preparation for moving NOTES into RO_DATA, provide a mechanism for
architectures that want to emit a PT_NOTE Program Header to do so.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # s390
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-ia64@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: https://lkml.kernel.org/r/20191029211351.13243-9-keescook@chromium.org
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Livepatch uses ftrace for redirection to new patched functions. It means
that if ftrace is disabled, all live patched functions are disabled as
well. Toggling global 'ftrace_enabled' sysctl thus affect it directly.
It is not a problem per se, because only administrator can set sysctl
values, but it still may be surprising.
Introduce PERMANENT ftrace_ops flag to amend this. If the
FTRACE_OPS_FL_PERMANENT is set on any ftrace ops, the tracing cannot be
disabled by disabling ftrace_enabled. Equally, a callback with the flag
set cannot be registered if ftrace_enabled is disabled.
Link: http://lkml.kernel.org/r/20191016113316.13415-2-mbenes@suse.cz
Reviewed-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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This feature gives the user RW access to any opal table with admin1
authority. The flags described in the new structure determines if the user
wants to read/write the data. Flags are checked for valid values in
order to allow future features to be added to the ioctl.
The user can provide the desired table's UID. Also, the ioctl provides a
size and offset field and internally will loop data accesses to return
the full data block. Read overrun is prevented by the initiator's
sec_send_recv() backend. The ioctl provides a private field with the
intention to accommodate any future expansions to the ioctl.
Reviewed-by: Scott Bauer <sbauer@plzdonthack.me>
Reviewed-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Revanth Rajashekar <revanth.rajashekar@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We currently don't have a completion event trace, add one of those. And
to better be able to match up submissions and completions, add user_data
to the submission trace as well.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Simple wrapper function that searches USB role switches with
class_find_device_by_fwnode().
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20191008122600.22340-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add a function to create a kernel thread associated with a given VM. In
particular, it ensures that the worker thread inherits the priority and
cgroups of the calling thread.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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A kernel module may need to check the value of the "mitigations=" kernel
command line parameter as part of its setup when the module needs
to perform software mitigations for a CPU flaw.
Uninline and export the helper functions surrounding the cpu_mitigations
enum to allow for their usage from a module.
Lastly, privatize the enum and cpu_mitigations variable since the value of
cpu_mitigations can be checked with the exported helper functions.
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Some processors may incur a machine check error possibly resulting in an
unrecoverable CPU lockup when an instruction fetch encounters a TLB
multi-hit in the instruction TLB. This can occur when the page size is
changed along with either the physical address or cache type. The relevant
erratum can be found here:
https://bugzilla.kernel.org/show_bug.cgi?id=205195
There are other processors affected for which the erratum does not fully
disclose the impact.
This issue affects both bare-metal x86 page tables and EPT.
It can be mitigated by either eliminating the use of large pages or by
using careful TLB invalidations when changing the page size in the page
tables.
Just like Spectre, Meltdown, L1TF and MDS, a new bit has been allocated in
MSR_IA32_ARCH_CAPABILITIES (PSCHANGE_MC_NO) and will be set on CPUs which
are mitigated against this issue.
Signed-off-by: Vineela Tummalapalli <vineela.tummalapalli@intel.com>
Co-developed-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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to pick up the KVM fix which is required for the NX series.
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Now dquot_enable() has only two internal callers and both of them just
need to update quota flags and don't need most of checks. Just drop
dquot_enable() and fold necessary functionality into the two calling
places.
Signed-off-by: Jan Kara <jack@suse.cz>
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Rename vfs_load_quota_inode() to dquot_load_quota_inode() to be
consistent with naming of other functions used for enabling quota
accounting from filesystems. Also export the function and add some
sanity checks to assure filesystems are calling the function properly.
Signed-off-by: Jan Kara <jack@suse.cz>
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Factor out setting up of quota inode and eventual error cleanup from
vfs_load_quota_inode(). This will simplify situation for filesystems
that don't have any quota inodes.
Signed-off-by: Jan Kara <jack@suse.cz>
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NFSv2, v3 and NFSv4 servers often have duplicate replay caches that look
at the source port when deciding whether or not an RPC call is a replay
of a previous call. This requires clients to perform strange TCP gymnastics
in order to ensure that when they reconnect to the server, they bind
to the same source port.
NFSv4.1 and NFSv4.2 have sessions that provide proper replay semantics,
that do not look at the source port of the connection. This patch therefore
ensures they can ignore the rebind requirement.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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If a NFSv3 server is being used as both a DS and as a regular NFSv3 server,
we may want to keep the IO traffic on a separate TCP connection, since
it will typically have very different timeout characteristics.
This patch therefore sets up a flag to separate the two modes of operation
for the nfs_client.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Add a flag to tell the nfs_client it should set RPC_CLNT_CREATE_NOPING when
creating the rpc client.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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Simplify the struct iattr timestamp encoding by skipping the step of
an intermediate struct timespec.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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NFSv4 supports 64-bit times, so we should switch to using struct
timespec64 when decoding attributes.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dt
dt-bindings: Changes for v5.5-rc1
This contains various updates to device tree bindings and includes that
are related to driver changes in other Tegra branches.
* tag 'tegra-for-5.5-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: memory: Add binding for NVIDIA Tegra30 External Memory Controller
dt-bindings: memory: Add binding for NVIDIA Tegra30 Memory Controller
dt-bindings: memory: tegra30: Convert to Tegra124 YAML
dt-bindings: regulator: Document regulators coupling of NVIDIA Tegra20/30 SoCs
dt-bindings: clock: tegra: Rename SOR0_LVDS to SOR0_OUT
Link: https://lore.kernel.org/r/20191102144521.3863321-1-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers
Renesas driver updates for v5.5 (take two)
- Initial support for the R-Car M3-W+ (r8a77961) SoC,
- A minor fix.
* tag 'renesas-drivers-for-v5.5-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
soc: renesas: rcar-sysc: Add R8A77961 support
soc: renesas: rcar-rst: Add R8A77961 support
soc: renesas: Identify R-Car M3-W+
soc: renesas: Add ARCH_R8A77961 for new R-Car M3-W+
soc: renesas: Add ARCH_R8A77960 for existing R-Car M3-W
soc: renesas: Rename SYSC_R8A7796 to SYSC_R8A77960
soc: renesas: Add missing check for non-zero product register address
dt-bindings: clock: Add r8a77961 CPG Core Clock Definitions
dt-bindings: power: Add r8a77961 SYSC power domain definitions
Link: https://lore.kernel.org/r/20191101155842.31467-6-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt
Renesas ARM64 DT updates for v5.5 (take two)
- Video-Input and Serial-ATA support on RZ/G2N,
- Color Management Module support on various R-Car Gen3 SoCs,
- Initial support for the R-Car M3-W+ (r8a77961) SoC on the
Salvator-XS board.
* tag 'renesas-arm64-dt-for-v5.5-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
arm64: dts: renesas: Add support for Salvator-XS with R-Car M3-W+
arm64: dts: renesas: Add Renesas R8A77961 SoC support
arm64: dts: renesas: Prepare for rename of ARCH_R8A7796 to ARCH_R8A77960
dt-bindings: clock: Add r8a77961 CPG Core Clock Definitions
dt-bindings: power: Add r8a77961 SYSC power domain definitions
arm64: dts: renesas: r8a774b1: Add SATA controller node
arm64: dts: renesas: rcar-gen3: Add CMM units
arm64: dts: renesas: r8a774b1: Add VIN and CSI-2 support
Link: https://lore.kernel.org/r/20191101155842.31467-5-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/dt
PRM reset control dts changes for v5.5 merge window
This series of changes adds the PRM reset driver nodes for am3/4, omap4/5
and dra7 SoCs. The reset driver changes make it easier to add support for
various accelerators for TI SoCs in a more generic way.
Note that this branch is based on the PRM reset driver changes branch.
* tag 'omap-for-v5.5/prm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap5: Add PRM data
ARM: dts: am43xx: Add PRM data
ARM: dts: am33xx: Add PRM data
ARM: dts: omap4: add PRM nodes
ARM: dts: dra7: add PRM nodes
soc: ti: omap-prm: add omap5 PRM data
soc: ti: omap-prm: add am4 PRM data
soc: ti: omap-prm: add dra7 PRM data
soc: ti: omap-prm: add data for am33xx
soc: ti: omap-prm: add omap4 PRM data
soc: ti: omap-prm: add support for denying idle for reset clockdomain
soc: ti: omap-prm: poll for reset complete during de-assert
soc: ti: add initial PRM driver with reset control support
dt-bindings: omap: add new binding for PRM instances
Link: https://lore.kernel.org/r/pull-1572623173-281197@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-realtek into arm/dt
Realtek ARM64 based SoC DT for v5.5
Add RTD1293 and RTD1296 DTs. Add the watchdog for all of RTD129x DTs.
Add reset controllers for RTD129x and start using them for UARTs.
* tag 'realtek-arm64-dt-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-realtek:
arm64: dts: realtek: Add RTD129x UART resets
arm64: dts: realtek: Add RTD129x reset controller nodes
dt-bindings: reset: Add Realtek RTD1295
arm64: dts: realtek: Add watchdog node for RTD129x
arm64: dts: realtek: Add oscillator for RTD129x
arm64: dts: realtek: Add RTD1296 and Synology DS418
dt-bindings: arm: realtek: Document RTD1296 and Synology DS418
arm64: dts: realtek: Add RTD1293 and Synology DS418j
arm64: dts: realtek: Change dual-license from MIT to BSD
dt-bindings: arm: realtek: Document RTD1293 and Synology DS418j
dt-bindings: arm: realtek: Tidy up conversion to json-schema
Link: https://lore.kernel.org/r/20191030041000.31848-2-afaerber@suse.de
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into arm/drivers
* 'for_5.5/driver-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
memory: emif: remove set but not used variables 'cs1_used' and 'custom_configs'
soc: ti: omap-prm: fix return value check in omap_prm_probe()
soc: ti: omap-prm: add omap5 PRM data
soc: ti: omap-prm: add am4 PRM data
soc: ti: omap-prm: add dra7 PRM data
soc: ti: omap-prm: add data for am33xx
soc: ti: omap-prm: add omap4 PRM data
soc: ti: omap-prm: add support for denying idle for reset clockdomain
soc: ti: omap-prm: poll for reset complete during de-assert
soc: ti: add initial PRM driver with reset control support
dt-bindings: omap: add new binding for PRM instances
Link: https://lore.kernel.org/r/1572372856-20598-1-git-send-email-santosh.shilimkar@oracle.com
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Make context persistence optional
Allow userspace to tie the context lifetime to FD lifetime,
effectively allowing Ctrl-C killing of a process to also clean
up the hardware immediately.
Compute changes: https://github.com/intel/compute-runtime/pull/228
The compute driver is shipping in Ubuntu. uAPI acked by Mesa folks.
- Put future HW and their uAPIs under STAGING & BROKEN
Introduces DRM_I915_UNSTABLE Kconfig menu for working on the new
uAPI for future HW in upstream. We already disable driver loading
by default the platform is deemed ready. This is a second level
of protection based on compile time switch (STAGING & BROKEN).
- Under DRM_I915_UNSTABLE: Add the fake lmem region on iGFX
Fake local memory region on integrated GPU through cmdline:
memmap=2G$16G i915.fake_lmem_start=0x400000000
Currently allows testing non-mappable GGTT behavior and running
kernel selftest for local memory.
Driver Changes:
- Fix Bugzilla #112084: VGA external monitor not working (Ville)
- Add support for half float framebuffers (Ville)
- Add perf support on TGL (Lionel)
- Replace hangcheck by heartbeats (Chris)
- Allow SPT PCH on all AML devices (James)
- Add new CNL PCH for CML platform (Imre)
- Allow 100 ms (Kconfig) for workloads to exit before reset (Chris, Jon, Joonas)
- Forcibly pre-empt a context after 100 ms (Kconfig) of delay (Chris)
- Make timeslice duration Kconfig configurable (Chris)
- Whitelist PS_(DEPTH|INVOCATION)_COUNT for Tigerlake (Tapani)
- Support creating LMEM objects in kernel (Matt A)
- Adjust the location of RING_MI_MODE in the context image for TGL (Chris)
- Handle AUX interrupts for TC ports (Matt R)
- Add support for devices without mappable GGTT aperture (Daniele)
- Rename "inject_load_failure" module parameter to "inject_probe_failure" (Janusz)
- Handle fused off HDCP, FBC, DMC and DSC (Jose)
- Add support to one DP-MST stream on Tigerlake (Lucas)
- Add HuC firmware (and GuC) for TGL (Daniele)
- Allow ICL+ DSI on any pipe (Ville)
- Check some transcoder timing minimum limits (Ville)
- Don't set queue_priority_hint if we don't kick the submission (Chris)
- Introduce barrier pulses along engines to flush idle/in-flight requests (Chris)
- Drop assertion that ce->pin_mutex guards state updates (Chris)
- Cancel banned contexts on schedule-out (Chris)
- Cancel contexts when hangchecking is disabled (Chris)
- Catch GTT fault errors for gen11+ planes (Matt R)
- Print in debugfs if PSR is not enabled because of sink (Jose)
- Do not set MOCS control values on dgfx (Lucas)
- Setup io-mapping for LMEM (Abdiel)
- Support kernel mapping of LMEM objects (Abdiel)
- Add LMEM selftests (Matt A)
- Initialise PMU spinlock before registering (Chris)
- Clear DKL_TX_PMD_LANE_SUS before program TC voltage swing (Jose)
- Flip interpretation of ips fmin/fmax to max rps (Chris)
- Add VBT compression parameter block definition (Jani)
- Limit the blitter sizes to ensure low preemption latency (Chris)
- Fixup block_size rounding on BLT (Matt A)
- Don't try to place HWS in non-existing mappable region (Michal Wa)
- Don't allocate the ring in stolen if we lack aperture (Matt A)
- Add AUX B & C to DC_OFF_POWER_DOMAINS for Tigerlake (Matt R)
- Avoid HPD poll detect triggering a new detect cycle (Imre)
- Document the userspace fail with possible_crtcs (Ville)
- Drop lrc header page now unused by GuC (Daniele)
- Do not switch aux to TBT mode for non-TC ports (Jose)
- Restructure code to avoid depending on i915 but smaller structs (Chris, Tvrtko, Andi)
- Remove pm park/unpark notifications (Chris)
- Avoid lockdep cross-contamination between object types (Chris)
- Restructure DSC code (Jani)
- Fix dead locking in early workload shadow (Zhenyu)
- Split the legacy submission backend from the common CS ring buffer (Chris)
- Move intel_engine_context_in/out into intel_lrc.c (Tvrtko)
- Describe perf/wakeref structure members in documentation (Anna)
- Update renamed header files names in documentation (Anna)
- Add debugs to distingiush a cd2x update from a full cdclk pll update (Ville)
- Rework atomic global state locking (Ville)
- Allow planes to declare their minimum acceptable cdclk (Ville)
- Eliminate skl_check_pipe_max_pixel_rate() and simplify skl_max_scale() (Ville)
- Making loglevel of PSR2/SU logs same (Ap)
- Capture aux page table error register (Lionel)
- Add is_dgfx to device info (Jose)
- Split gen11_irq_handler to make it shareable (Lucas)
- Encapsulate kconfig constant values inside boolean predicates (Chris)
- Split memory_region initialisation into its own file (Chris)
- Use _PICK() for CHICKEN_TRANS() and add CHICKEN_TRANS_D (Ville)
- Add perf helper macros for comparing with whitelisted registers (Umesh)
- Fix i915_inject_load_error() name to read *_probe_* (Janusz)
- Drop unused AUX register offsets (Matt R)
- Provide more information on DP AUX failures (Matt R)
- Add GAM/SFC instdone to error state (Mika)
- Always track callers to intel_rps_mark_interactive() (Chris)
- Nuke 'mode' argument to intel_get_load_detect_pipe() (Ville)
- Simplify LVDS crtc_mask and pipe_mask setup (Ville)
- Stop frobbing crtc->base.mode (Ville)
- Do s/crtc_mask/pipe_mask/ (Ville)
- Split detaching and removing the vma (Chris)
- Selftest improvements (Chris, Tvrtko, Mika, Matt A, Lionel)
- GuC code improvements (Rob, Andi, Daniele)
- Check against i915_selftest only under CONFIG_SELFTEST (Chris)
- Refine occupancy test in kill_context() (Chris)
- Start kthreads before stopping (Chris)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191101104718.GA14323@jlahtine-desk.ger.corp.intel.com
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git://anongit.freedesktop.org/tegra/linux into drm-next
drm/tegra: Changes for v5.5-rc1
The bulk of these changes is the addition of DisplayPort support for
Tegra210, Tegra186 and Tegra194. I've been running versions of this for
about three years now, so I'd consider these changes to be pretty
mature. These changes also unify the existing eDP support with the DP
support since the programming is very similar, except for a few steps
that can be easily parameterized.
The rest are a couple of fixes all over the place for minor issues, as
well as some work to support the IOMMU-backed DMA API, which in the end
turned out to also clean up a number of cases where the DMA API was not
being used correctly.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191102140116.3860545-1-thierry.reding@gmail.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.5:
UAPI Changes:
-dma-buf: Introduce and revert dma-buf heap (Andrew/John/Sean)
Cross-subsystem Changes:
- None
Core Changes:
-dma-buf: add dynamic mapping to allow exporters to choose dma_resv lock
state on mmap/munmap (Christian)
-vram: add prepare/cleanup fb helpers to vram helpers (Thomas)
-ttm: always keep bo's on the lru + ttm cleanups (Christian)
-sched: allow a free_job routine to sleep (Steven)
-fb_helper: remove unused drm_fb_helper_defio_init() (Thomas)
Driver Changes:
-bochs/hibmc/vboxvideo: Use new vram helpers for prepare/cleanup fb (Thomas)
-amdgpu: Implement dma-buf import/export without drm helpers (Christian)
-panfrost: Simplify devfreq integration in driver (Steven)
Cc: Christian König <christian.koenig@amd.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Steven Price <steven.price@arm.com>
Cc: Andrew F. Davis <afd@ti.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031193015.GA243509@art_vandelay
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On SAM9X60, slewrate should be enabled on pins with a switching frequency
below 50Mhz. Since most of our pins do not exceed this value, we enable
slewrate by default. Pins with a switching value that exceeds 50Mhz will
have to explicitly disable slewrate.
This patch changes the ABI. However, the slewrate macros are only used
by SAM9X60 and, at this moment, there are no device-tree files available
for this platform.
Suggested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20191101092031.24896-1-codrin.ciubotariu@microchip.com
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The existing debugfs_create_ulong() function supports objects of
type "unsigned long", which are 32-bit or 64-bit depending on the
platform, in decimal form. To format objects in hexadecimal, various
debugfs_create_x*() functions exist, but all of them take fixed-size
types.
Add a debugfs helper for "unsigned long" objects in hexadecimal format.
This avoids the need for users to open-code the same, or introduce
bugs when casting the value pointer to "u32 *" or "u64 *" to call
debugfs_create_x{32,64}().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191025094130.26033-2-geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Update the leds.h structure documentation to define the
correct arguments.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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extern is implied and is not needed in the header file.
Remove the extern keyword and re-align the code.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Add the missing device managed API for registration and
unregistration for the LED flash class.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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extern is implied and is not needed in the header file.
Remove the extern keyword and re-align the code.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Convert the #define non-extended registration API to an
inline function.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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Reading /sys/class/leds/<led>/trigger returns all available LED triggers.
However, the size of this file is limited to PAGE_SIZE because of the
limitation for sysfs attribute.
Enabling LED CPU trigger on systems with thousands of CPUs easily hits
PAGE_SIZE limit, and makes it impossible to see all available LED triggers
and which trigger is currently activated.
We work around it here by converting /sys/class/leds/<led>/trigger to
binary attribute, which is not limited by length. This is _not_ good
design, do not copy it.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Dan Murphy <dmurphy@ti.com>A
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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No one checks the return value of debugfs_create_atomic_t(), as it's not
needed, so make the return value void, so that no one tries to do so in
the future.
Link: https://lore.kernel.org/r/20191016130332.GA28240@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If there is an entry at INT_MAX then idr_for_each_entry() will increment
id after handling it. This is undefined behaviour, and is caught by
UBSAN. Adding 1U to id forces the operation to be carried out as an
unsigned addition which (when assigned to id) will result in INT_MIN.
Since there is never an entry stored at INT_MIN, idr_get_next() will
return NULL, ending the loop as expected.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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The inline read functions in the ADIS library don't check the return value
of the `adis_read_reg()` function and assign the value of `tmp` regardless.
Fix this by checking if return value is zero and only then assigning the
value of `tmp`.
No known case of the callers of this function incorrectly using the
value, but best to stop any potential risk here.
Not suitable for stable due to no known actual bugs caused by this
issue.
Fixes: 57a1228a06b7a ("iio:imu:adis: Add support for 32bit registers")
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Alexei Starovoitov says:
====================
pull-request: bpf-next 2019-11-02
The following pull-request contains BPF updates for your *net-next* tree.
We've added 30 non-merge commits during the last 7 day(s) which contain
a total of 41 files changed, 1864 insertions(+), 474 deletions(-).
The main changes are:
1) Fix long standing user vs kernel access issue by introducing
bpf_probe_read_user() and bpf_probe_read_kernel() helpers, from Daniel.
2) Accelerated xskmap lookup, from Björn and Maciej.
3) Support for automatic map pinning in libbpf, from Toke.
4) Cleanup of BTF-enabled raw tracepoints, from Alexei.
5) Various fixes to libbpf and selftests.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The only slightly tricky merge conflict was the netdevsim because the
mutex locking fix overlapped a lot of driver reload reorganization.
The rest were (relatively) trivial in nature.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The current bpf_probe_read() and bpf_probe_read_str() helpers are broken
in that they assume they can be used for probing memory access for kernel
space addresses /as well as/ user space addresses.
However, plain use of probe_kernel_read() for both cases will attempt to
always access kernel space address space given access is performed under
KERNEL_DS and some archs in-fact have overlapping address spaces where a
kernel pointer and user pointer would have the /same/ address value and
therefore accessing application memory via bpf_probe_read{,_str}() would
read garbage values.
Lets fix BPF side by making use of recently added 3d7081822f7f ("uaccess:
Add non-pagefault user-space read functions"). Unfortunately, the only way
to fix this status quo is to add dedicated bpf_probe_read_{user,kernel}()
and bpf_probe_read_{user,kernel}_str() helpers. The bpf_probe_read{,_str}()
helpers are kept as-is to retain their current behavior.
The two *_user() variants attempt the access always under USER_DS set, the
two *_kernel() variants will -EFAULT when accessing user memory if the
underlying architecture has non-overlapping address ranges, also avoiding
throwing the kernel warning via 00c42373d397 ("x86-64: add warning for
non-canonical user access address dereferences").
Fixes: a5e8c07059d0 ("bpf: add bpf_probe_read_str helper")
Fixes: 2541517c32be ("tracing, perf: Implement BPF programs attached to kprobes")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/796ee46e948bc808d54891a1108435f8652c6ca4.1572649915.git.daniel@iogearbox.net
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Add two new probe_kernel_read_strict() and strncpy_from_unsafe_strict()
helpers which by default alias to the __probe_kernel_read() and the
__strncpy_from_unsafe(), respectively, but can be overridden by archs
which have non-overlapping address ranges for kernel space and user
space in order to bail out with -EFAULT when attempting to probe user
memory including non-canonical user access addresses [0]:
4-level page tables:
user-space mem: 0x0000000000000000 - 0x00007fffffffffff
non-canonical: 0x0000800000000000 - 0xffff7fffffffffff
5-level page tables:
user-space mem: 0x0000000000000000 - 0x00ffffffffffffff
non-canonical: 0x0100000000000000 - 0xfeffffffffffffff
The idea is that these helpers are complementary to the probe_user_read()
and strncpy_from_unsafe_user() which probe user-only memory. Both added
helpers here do the same, but for kernel-only addresses.
Both set of helpers are going to be used for BPF tracing. They also
explicitly avoid throwing the splat for non-canonical user addresses from
00c42373d397 ("x86-64: add warning for non-canonical user access address
dereferences").
For compat, the current probe_kernel_read() and strncpy_from_unsafe() are
left as-is.
[0] Documentation/x86/x86_64/mm.txt
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: x86@kernel.org
Link: https://lore.kernel.org/bpf/eefeefd769aa5a013531f491a71f0936779e916b.1572649915.git.daniel@iogearbox.net
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Commit 3d7081822f7f ("uaccess: Add non-pagefault user-space read functions")
missed to add probe write function, therefore factor out a probe_write_common()
helper with most logic of probe_kernel_write() except setting KERNEL_DS, and
add a new probe_user_write() helper so it can be used from BPF side.
Again, on some archs, the user address space and kernel address space can
co-exist and be overlapping, so in such case, setting KERNEL_DS would mean
that the given address is treated as being in kernel address space.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/bpf/9df2542e68141bfa3addde631441ee45503856a8.1572649915.git.daniel@iogearbox.net
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No one checks the return value of debugfs_create_x8(), as it's not
needed, so make the return value void, so that no one tries to do so in
the future.
Link: https://lore.kernel.org/r/20191011132931.1186197-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When add_links() still has suppliers that it needs to link to in the
future, this patch allows it to differentiate between suppliers that are
needed for probing vs suppliers that are needed for sync_state()
correctness.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20191028220027.251605-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Before this change, if a device is waiting on suppliers, it's assumed
that all those suppliers are needed for the device to probe
successfully. This change allows marking a devices as waiting only on
optional suppliers. This allows a device to wait on suppliers (and link
to them as soon as they are available) without preventing the device
from being probed.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20191028220027.251605-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Parent devices might need to create "proxy" device links from themselves
to supplier devices to make sure the supplier devices don't get a
sync_state() before the child consumer devices get a chance to add
device links to the supplier devices.
However, the parent device has no real dependency on the supplier device
and probing, suspend/resume or runtime PM don't need to be affected by
the supplier device. To capture these cases, create a SYNC_STATE_ONLY
device link flag that only affects sync_state() behavior and doesn't
affect probing, suspend/resume or runtime PM.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20191028220027.251605-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This API is unsafe to use under the RCU lock. With no in-tree users
remaining, remove it to prevent future bugs.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
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