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In order to call into the firmware to apply workarounds, it is
useful to find out whether we're using HVC or SMC. Let's expose
this through the psci_ops.
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If the table result is out of bounds on the array map
there is something really wrong with VBT pin so we don't
return that vbt_pin, but only return 0 instead.
This basically reverts commit 'a8e6f3888b05 ("drm/i915/cnp:
Ignore VBT request for know invalid DDC pin.")'
Also this properly fixes commit 9c3b2689d01f ("drm/i915/cnl:
Map VBT DDC Pin to BSpec DDC Pin.")
v2: Do in a way that we don't break other platforms. (Jani)
v3: Keep debug message (Jani)
v4: Don't mess with 0 mapping was noticed by Jani and
addressed with a simple solution suggested by Lucas
that makes this even simpler.
Fixes: a8e6f3888b05 ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.")
Fixes: 9c3b2689d01f ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.")
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Kai Heng Feng <kai.heng.feng@canonical.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Suggested-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125222524.22059-1-rodrigo.vivi@intel.com
(cherry picked from commit 3393ce1ed8fc43dbdb83952facaf04e644ca1d54)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Let's ignore VBT request if the pin is clearly wrong.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104139
Cc: Kai Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180123174050.4261-1-rodrigo.vivi@intel.com
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
(cherry picked from commit a8e6f3888b05c1e7b685800a3371ce050720368f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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The command MEDIA_VFE_STATE checks bits at offset +2 dwords. However, it is
possible to have MEDIA_VFE_STATE command with length = 0 + LENGTH_BIAS = 2.
In that case check_cmd will read bits from the following command, or even past
the end of the buffer.
If the offset ends up outside of the command length, reject the command.
Fixes: 351e3db2b363 ("drm/i915: Implement command buffer parsing logic")
Signed-off-by: Michal Srb <msrb@suse.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180205151745.29292-1-msrb@suse.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180205160438.3267-2-chris@chris-wilson.co.uk
(cherry picked from commit 3aec7f871c65eb5f76b4125fda432593c834a6f2)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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The find_reg function was assuming that there is always at least one table in
reg_tables. It is not always true.
In case of VCS or VECS, the reg_tables is NULL and reg_table_count is 0,
implying that no register-accessing commands are allowed. However, the command
tables include commands such as MI_STORE_REGISTER_MEM. When trying to check
such command, the find_reg would dereference NULL pointer.
Now it will just return NULL meaning that the register was not found and the
command will be rejected.
Fixes: 76ff480ec963 ("drm/i915/cmdparser: Use binary search for faster register lookup")
Signed-off-by: Michal Srb <msrb@suse.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180205142916.27092-2-msrb@suse.com
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180205160438.3267-1-chris@chris-wilson.co.uk
register lookup")
(cherry picked from commit 2f265fad9756a40c09e3f4dcc62d5d7fa73a9fb2)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Currently we see sporadic timeouts during CDCLK changing both on BXT and
GLK as reported by the Bugzilla: ticket. It's easy to reproduce this by
changing the frequency in a tight loop after blanking the display. The
upper bound for the completion time is 800us based on my tests, so
increase it from the current 500us to 2ms; with that I couldn't trigger
the problem either on BXT or GLK.
Note that timeouts happened during both the change notification and the
voltage level setting PCODE request. (For the latter one BSpec doesn't
require us to wait for completion before further HW programming.)
This issue is similar to
commit 2c7d0602c815 ("drm/i915/gen9: Fix PCODE polling during CDCLK
change notification")
but there the PCODE request does complete (as shown by the mbox
busy flag), only the reply we get from PCODE indicates a failure.
So there we keep resending the request until a success reply, here we
just have to increase the timeout for the one PCODE request we send.
v2:
- s/snb_pcode_request/sandybridge_pcode_write_timeout/ (Ville)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.4+
Acked-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103326
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130142939.17983-1-imre.deak@intel.com
(cherry picked from commit e76019a81921e87a4d9e7b3d86102bc708a6c227)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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For KVMGT, the guest opregion, which is handled by VFIO, is actually a
piece of guest memory which won't be accessed by devices. So, its mfn
shouldn't be obtained through VFIO interface. This patch uses KVM r/w
interface to access the data in guest opregion.
Fix the guest opregion accessing issue when host "intel_iommu=on".
v3:
- Remove mapped flag for KVM/VFIO usage, as it's useless for KVM.
v2:
- Set the gpa correctly when invoking KVM r/w operations. (Zhenyu)
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Cc: Yan Zhao <yan.y.zhao@intel.com>
Cc: Xiong Zhang <xiong.y.zhang@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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When add 'x-no-mmap=on' for vfio-pci option, aperture access in guest
is emulated. But the vgpu_aperture_rw() function take wrong offset when
do memcpy, since vgpu->gm.aperture_va is not the base of entire aperture.
This mistake cause GPU command in guest get lost and so the seqno is not
updated in engine HWSP.
This patch fix this, and it also move the emulation code to kvmgt.
Because only vfio need to emulate it. Put aperture rw to MMIO emulation
path breaks assumptions in xengt.
v2: Remove PAGE_ALIGN for size (zhenyu)
Fixes: f090a00df9ec ("drm/i915/gvt: Add emulation for BAR2 (aperture) with normal file RW approach")
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Only reset vgpu execlist state of the exact engine which gets reset
request from VM. After read context status from HWSP enabled, KMD will use
the saved CSB read pointer but not always read from MMIO. When one engine
reset happen, only the read pointer of this engine will be reset, in GVT-g
host side also need to align with this policy, otherwise VM may get wrong
CSB status after one engine reset compeleted.
v2: Split refine and fix patch, code refine(Zhenyu)
v3: Move active flag of vgpu scheduler into sched_data(Zhenyu)
Cc: Fred Gao <fred.gao@intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Weinan Li <weinan.z.li@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Using per engine ops will be more flexible, here refine sub-ops(init,
clean) as per engine operation align with reset operation. This change also
will be used in next fix patch for VM engine reset.
Cc: Fred Gao <fred.gao@intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Weinan Li <weinan.z.li@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- videobuf2 was moved to a media/common dir, as it is now used by the
DVB subsystem too
- Digital TV core memory mapped support interface
- new sensor driver: ov7740
- several improvements at ddbridge driver
- new V4L2 driver: IPU3 CIO2 CSI-2 receiver unit, found on some Intel
SoCs
- new tuner driver: tda18250
- finally got rid of all LIRC staging drivers
- as we don't have old lirc drivers anymore, restruct the lirc device
code
- add support for UVC metadata
- add a new staging driver for NVIDIA Tegra Video Decoder Engine
- DVB kAPI headers moved to include/media
- synchronize the kAPI and uAPI for the DVB subsystem, removing the gap
for non-legacy APIs
- reduce the kAPI gap for V4L2
- lots of other driver enhancements, cleanups, etc.
* tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (407 commits)
media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
media: v4l2-compat-ioctl32.c: avoid sizeof(type)
media: v4l2-compat-ioctl32.c: move 'helper' functions to __get/put_v4l2_format32
media: v4l2-compat-ioctl32.c: fix the indentation
media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
media: vivid: fix module load error when enabling fb and no_error_inj=1
media: dvb_demux: improve debug messages
media: dvb_demux: Better handle discontinuity errors
media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
media: ts2020: avoid integer overflows on 32 bit machines
media: i2c: ov7740: use gpio/consumer.h instead of gpio.h
media: entity: Add a nop variant of media_entity_cleanup
...
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Pull more rdma updates from Doug Ledford:
"Items of note:
- two patches fix a regression in the 4.15 kernel. The 4.14 kernel
worked fine with NVMe over Fabrics and mlx5 adapters. That broke in
4.15. The fix is here.
- one of the patches (the endian notation patch from Lijun) looks
like a lot of lines of change, but it's mostly mechanical in
nature. It amounts to the biggest chunk of change in it (it's about
2/3rds of the overall pull request).
Summary:
- Clean up some function signatures in rxe for clarity
- Tidy the RDMA netlink header to remove unimplemented constants
- bnxt_re driver fixes, one is a regression this window.
- Minor hns driver fixes
- Various fixes from Dan Carpenter and his tool
- Fix IRQ cleanup race in HFI1
- HF1 performance optimizations and a fix to report counters in the right units
- Fix for an IPoIB startup sequence race with the external manager
- Oops fix for the new kabi path
- Endian cleanups for hns
- Fix for mlx5 related to the new automatic affinity support"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (38 commits)
net/mlx5: increase async EQ to avoid EQ overrun
mlx5: fix mlx5_get_vector_affinity to start from completion vector 0
RDMA/hns: Fix the endian problem for hns
IB/uverbs: Use the standard kConfig format for experimental
IB: Update references to libibverbs
IB/hfi1: Add 16B rcvhdr trace support
IB/hfi1: Convert kzalloc_node and kcalloc to use kcalloc_node
IB/core: Avoid a potential OOPs for an unused optional parameter
IB/core: Map iWarp AH type to undefined in rdma_ah_find_type
IB/ipoib: Fix for potential no-carrier state
IB/hfi1: Show fault stats in both TX and RX directions
IB/hfi1: Remove blind constants from 16B update
IB/hfi1: Convert PortXmitWait/PortVLXmitWait counters to flit times
IB/hfi1: Do not override given pcie_pset value
IB/hfi1: Optimize process_receive_ib()
IB/hfi1: Remove unnecessary fecn and becn fields
IB/hfi1: Look up ibport using a pointer in receive path
IB/hfi1: Optimize packet type comparison using 9B and bypass code paths
IB/hfi1: Compute BTH only for RDMA_WRITE_LAST/SEND_LAST packet
IB/hfi1: Remove dependence on qp->s_hdrwords
...
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Ross Zwisler:
- Require struct page by default for filesystem DAX to remove a number
of surprising failure cases. This includes failures with direct I/O,
gdb and fork(2).
- Add support for the new Platform Capabilities Structure added to the
NFIT in ACPI 6.2a. This new table tells us whether the platform
supports flushing of CPU and memory controller caches on unexpected
power loss events.
- Revamp vmem_altmap and dev_pagemap handling to clean up code and
better support future future PCI P2P uses.
- Deprecate the ND_IOCTL_SMART_THRESHOLD command whose payload has
become out-of-sync with recent versions of the NVDIMM_FAMILY_INTEL
spec, and instead rely on the generic ND_CMD_CALL approach used by
the two other IOCTL families, NVDIMM_FAMILY_{HPE,MSFT}.
- Enhance nfit_test so we can test some of the new things added in
version 1.6 of the DSM specification. This includes testing firmware
download and simulating the Last Shutdown State (LSS) status.
* tag 'libnvdimm-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (37 commits)
libnvdimm, namespace: remove redundant initialization of 'nd_mapping'
acpi, nfit: fix register dimm error handling
libnvdimm, namespace: make min namespace size 4K
tools/testing/nvdimm: force nfit_test to depend on instrumented modules
libnvdimm/nfit_test: adding support for unit testing enable LSS status
libnvdimm/nfit_test: add firmware download emulation
nfit-test: Add platform cap support from ACPI 6.2a to test
libnvdimm: expose platform persistence attribute for nd_region
acpi: nfit: add persistent memory control flag for nd_region
acpi: nfit: Add support for detect platform CPU cache flush on power loss
device-dax: Fix trailing semicolon
libnvdimm, btt: fix uninitialized err_lock
dax: require 'struct page' by default for filesystem dax
ext2: auto disable dax instead of failing mount
ext4: auto disable dax instead of failing mount
mm, dax: introduce pfn_t_special()
mm: Fix devm_memremap_pages() collision handling
mm: Fix memory size alignment in devm_memremap_pages_release()
memremap: merge find_dev_pagemap into get_dev_pagemap
memremap: change devm_memremap_pages interface to use struct dev_pagemap
...
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- skip AER driver error recovery callbacks for correctable errors
reported via ACPI APEI, as we already do for errors reported via the
native path (Tyler Baicar)
- fix DPC shared interrupt handling (Alex Williamson)
- print full DPC interrupt number (Keith Busch)
- enable DPC only if AER is available (Keith Busch)
- simplify DPC code (Bjorn Helgaas)
- calculate ASPM L1 substate parameter instead of hardcoding it (Bjorn
Helgaas)
- enable Latency Tolerance Reporting for ASPM L1 substates (Bjorn
Helgaas)
- move ASPM internal interfaces out of public header (Bjorn Helgaas)
- allow hot-removal of VGA devices (Mika Westerberg)
- speed up unplug and shutdown by assuming Thunderbolt controllers
don't support Command Completed events (Lukas Wunner)
- add AtomicOps support for GPU and Infiniband drivers (Felix Kuehling,
Jay Cornwall)
- expose "ari_enabled" in sysfs to help NIC naming (Stuart Hayes)
- clean up PCI DMA interface usage (Christoph Hellwig)
- remove PCI pool API (replaced with DMA pool) (Romain Perier)
- deprecate pci_get_bus_and_slot(), which assumed PCI domain 0 (Sinan
Kaya)
- move DT PCI code from drivers/of/ to drivers/pci/ (Rob Herring)
- add PCI-specific wrappers for dev_info(), etc (Frederick Lawler)
- remove warnings on sysfs mmap failure (Bjorn Helgaas)
- quiet ROM validation messages (Alex Deucher)
- remove redundant memory alloc failure messages (Markus Elfring)
- fill in types for compile-time VGA and other I/O port resources
(Bjorn Helgaas)
- make "pci=pcie_scan_all" work for Root Ports as well as Downstream
Ports to help AmigaOne X1000 (Bjorn Helgaas)
- add SPDX tags to all PCI files (Bjorn Helgaas)
- quirk Marvell 9128 DMA aliases (Alex Williamson)
- quirk broken INTx disable on Ceton InfiniTV4 (Bjorn Helgaas)
- fix CONFIG_PCI=n build by adding dummy pci_irqd_intx_xlate() (Niklas
Cassel)
- use DMA API to get MSI address for DesignWare IP (Niklas Cassel)
- fix endpoint-mode DMA mask configuration (Kishon Vijay Abraham I)
- fix ARTPEC-6 incorrect IS_ERR() usage (Wei Yongjun)
- add support for ARTPEC-7 SoC (Niklas Cassel)
- add endpoint-mode support for ARTPEC (Niklas Cassel)
- add Cadence PCIe host and endpoint controller driver (Cyrille
Pitchen)
- handle multiple INTx status bits being set in dra7xx (Vignesh R)
- translate dra7xx hwirq range to fix INTD handling (Vignesh R)
- remove deprecated Exynos PHY initialization code (Jaehoon Chung)
- fix MSI erratum workaround for HiSilicon Hip06/Hip07 (Dongdong Liu)
- fix NULL pointer dereference in iProc BCMA driver (Ray Jui)
- fix Keystone interrupt-controller-node lookup (Johan Hovold)
- constify qcom driver structures (Julia Lawall)
- rework Tegra config space mapping to increase space available for
endpoints (Vidya Sagar)
- simplify Tegra driver by using bus->sysdata (Manikanta Maddireddy)
- remove PCI_REASSIGN_ALL_BUS usage on Tegra (Manikanta Maddireddy)
- add support for Global Fabric Manager Server (GFMS) event to
Microsemi Switchtec switch driver (Logan Gunthorpe)
- add IDs for Switchtec PSX 24xG3 and PSX 48xG3 (Kelvin Cao)
* tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller
dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
PCI: endpoint: Fix EPF device name to support multi-function devices
PCI: endpoint: Add the function number as argument to EPC ops
PCI: cadence: Add host driver for Cadence PCIe controller
dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
PCI: Add vendor ID for Cadence
PCI: Add generic function to probe PCI host controllers
PCI: generic: fix missing call of pci_free_resource_list()
PCI: OF: Add generic function to parse and allocate PCI resources
PCI: Regroup all PCI related entries into drivers/pci/Makefile
PCI/DPC: Reformat DPC register definitions
PCI/DPC: Add and use DPC Status register field definitions
PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
PCI/DPC: Remove unnecessary RP PIO register structs
PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
PCI/DPC: Make RP PIO log size check more generic
PCI/DPC: Rename local "status" to "dpc_status"
PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
...
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The i2c touchpad on Dell XPS 9570 and Precision M5530 doesn't work out
of box.
The touchpad relies on its _INI method to update its _HID value from
XXXX0000 to SYNA2393.
Also, the _STA relies on value of I2CN to report correct status.
Set acpi_gbl_parse_table_as_term_list so the value of I2CN can be
correctly set up, and _INI can get run. The ACPI table in this machine
is designed to get parsed this way.
Also, change the quirk table to a more generic name.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=198515
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If the driver receives a TX CQE with status as 0x1 or 0x9 or 0xb,
the completion indexes should not be used. The driver must stop
consuming CQEs from this TXQ/CQ. The TXQ from this point on-wards
to be in a bad state. Driver should destroy and recreate the TXQ.
0x1: LANCER_TX_COMP_LSO_ERR
0x9 LANCER_TX_COMP_SGE_ERR
0xb: LANCER_TX_COMP_PARITY_ERR
Reset the adapter if driver sees this error in TX completion. Also
adding sge error counter in ethtool stats.
Signed-off-by: Suresh Reddy <suresh.reddy@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lancer HW cannot handle a TSO packet with a single segment.
Disable TSO/GSO for such packets.
Signed-off-by: Suresh Reddy <suresh.reddy@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 84ce5b987783 ("scripts: kernel-doc: improve nested logic to
handle multiple identifiers") improved the handling of nested structure
definitions in scripts/kernel-doc, and changed the expected format of
documentation. This causes new warnings to appear on W=1 builds.
Only comment changes.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Due to a typo, the mask was destroyed by a comparison instead of a bit
shift.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If CONFIG_GPIOLIB is disabled, fwnode_get_named_gpiod() becomes a stub
function, which return -ENOSYS. Handle this in the same way as
-ENOENT, i.e. assume there is no GPIO used to reset the PHYs.
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: bafbdd527d56 ("phylib: Add device reset GPIO support")
Signed-off-by: David S. Miller <davem@davemloft.net>
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devm_ioport_map() returns NULL on error but we accidentally check for
error pointers instead.
Fixes: c6acad68eb2d ("platform/mellanox: mlxreg-hotplug: Modify to use a regmap interface")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Vadim Pasternak <vadimp@melanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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When the client sends a regular blocking accept request, the backend is
expected to return only when the accept is completed, simulating a
blocking behavior, or return an error.
Specifically, on EAGAIN from inet_accept, the backend shouldn't return
"EAGAIN" to the client. Instead, it should simply continue the wait.
Otherwise, the client will send another accept request, which will cause
another EAGAIN to be sent back, which is a waste of resources and not
conforming to the expected behavior. Change the behavior by turning the
"goto error" into a return.
Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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including tool signons.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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When a netfront device is set up it registers a netdev fairly early on,
before it has set up the queues and is actually usable. A userspace tool
like NetworkManager will immediately try to open it and access its state
as soon as it appears. The bug can be reproduced by hotplugging VIFs
until the VM runs out of grant refs. It registers the netdev but fails
to set up any queues (since there are no more grant refs). In the
meantime, NetworkManager opens the device and the kernel crashes trying
to access the queues (of which there are none).
Fix this in two ways:
* For initial setup, register the netdev much later, after the queues
are setup. This avoids the race entirely.
* During a suspend/resume cycle, the frontend reconnects to the backend
and the queues are recreated. It is possible (though highly unlikely) to
race with something opening the device and accessing the queues after
they have been destroyed but before they have been recreated. Extend the
region covered by the rtnl semaphore to protect against this race. There
is a possibility that we fail to recreate the queues so check for this
in the open function.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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The page given to gnttab_end_foreign_access() to free could be a
compound page so use put_page() instead of free_page() since it can
handle both compound and single pages correctly.
This bug was discovered when migrating a Xen VM with several VIFs and
CONFIG_DEBUG_VM enabled. It hits a BUG usually after fewer than 10
iterations. All netfront devices disconnect from the backend during a
suspend/resume and this will call gnttab_end_foreign_access() if a
netfront queue has an outstanding skb. The mismatch between calling
get_page() and free_page() on a compound page causes a reference
counting error which is detected when DEBUG_VM is enabled.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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The CGCG feature on Stoney is causing GFX related
issues such as freezes and blank outs.
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Arindam Nath <arindam.nath@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This patch makes sure that the firmware version is never NULL. Moreover,
it also performs some cleanup on the error messages.
Fixes: a107311d7fdf ("ibmvnic: fix firmware version when no firmware level
has been provided by the VIOS server")
Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- initial kepler clock gating support
- atomic gamma handling fixes
- support for gp108 "secure boot" (enables acceleration, finally)
* 'linux-4.16' of git://github.com/skeggsb/linux:
drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warning
drm/nouveau/mmu: Fix trailing semicolon
drm/nouveau: Introduce NvPmEnableGating option
drm/nouveau: Add support for SLCG for Kepler2
drm/nouveau: Add support for BLCG on Kepler2
drm/nouveau: Add support for BLCG on Kepler1
drm/nouveau: Add support for basic clockgating on Kepler1
drm/nouveau/kms/nv50: fix handling of gamma since atomic conversion
drm/nouveau/kms/nv50: use INTERPOLATE_257_UNITY_RANGE LUT on newer chipsets
drm/nouveau/kms/nv50: use "low res" lut for indexed mode
drm/nouveau/kms/nv50: prepare for double-buffered LUTs
drm/nouveau/bo: add helper functions for handling pinned+mapped buffers
drm/nouveau/fbcon: add module parameter to select bits-per-pixel
drm/nouveau/secboot/gp108: implement on top of acr_r370
drm/nouveau/secboot/r370: implement support for booting LS SEC2 ucode
drm/nouveau/secboot/r370: move a bunch of r375 stuff to a new implementation
drm/nouveau: nouveau: use correct string length
drm/nouveau/drm/nouveau/mmu: fix odd_ptr_err.cocci warnings
drm/nouveau/pmu/fuc: don't use movw directly anymore
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Pull remoteproc updates from Bjorn Andersson:
"This contains a few bug fixes and a cleanup up of the resource-table
handling in the framework, which removes the need for drivers with no
resource table to provide a fake one"
* tag 'rproc-v4.16' of git://github.com/andersson/remoteproc:
remoteproc: Reset table_ptr on stop
remoteproc: Drop dangling find_rsc_table dummies
remoteproc: Move resource table load logic to find
remoteproc: Don't handle empty resource table
remoteproc: Merge rproc_ops and rproc_fw_ops
remoteproc: Clone rproc_ops in rproc_alloc()
remoteproc: Cache resource table size
remoteproc: Remove depricated crash completion
virtio_remoteproc: correct put_device virtio_device.dev
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Pull rpmsg updates from Bjorn Andersson:
"This fixes a few issues found in the SMD and GLINK drivers and
corrects the handling of SMD channels that are found in an
(previously) unexpected state"
* tag 'rpmsg-v4.16' of git://github.com/andersson/remoteproc:
rpmsg: smd: Fix double unlock in __qcom_smd_send()
rpmsg: glink: Fix missing mutex_init() in qcom_glink_alloc_channel()
rpmsg: smd: Don't hold the tx lock during wait
rpmsg: smd: Fail send on a closed channel
rpmsg: smd: Wake up all waiters
rpmsg: smd: Create device for all channels
rpmsg: smd: Perform handshake during open
rpmsg: glink: smem: Ensure ordering during tx
drivers: rpmsg: remove duplicate includes
remoteproc: qcom: Use PTR_ERR_OR_ZERO() in glink prob
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC host fixes from Ulf Hansson:
- renesas_sdhi: Fix build error in case NO_DMA=y
- sdhci: Implement a bounce buffer to address throughput regressions
* tag 'mmc-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: MMC_SDHI_{SYS,INTERNAL}_DMAC should depend on HAS_DMA
mmc: sdhci: Implement an SDHCI-specific bounce buffer
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git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"The Meson PWM controller driver gains support for the AXG series and a
minor bug is fixed for the STMPE driver.
To round things off, the class is now set for PWM channels exported
via sysfs which allows non-root access, provided that the system has
been configured accordingly"
* tag 'pwm/for-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: meson: Add clock source configuration for Meson-AXG
dt-bindings: pwm: Update bindings for the Meson-AXG
pwm: stmpe: Fix wrong register offset for hwpwm=2 case
pwm: Set class for exported channels in sysfs
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The Mediatek ethernet driver fails to build after commit 23c35f48f5fb
("pinctrl: remove include file from <linux/device.h>") because it relies
on the pinctrl/consumer.h and pinctrl/devinfo.h being pulled in by the
device.h header implicitly.
Include these headers explicitly to avoid the build failure.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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|
The Meson GX MMC driver fails to build after commit 23c35f48f5fb
("pinctrl: remove include file from <linux/device.h>") because it relies
on the pinctrl/consumer.h being pulled in by the device.h header
implicitly.
Include the header explicitly to avoid the build failure.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The Rockchip LVDS driver fails to build after commit 23c35f48f5fb
("pinctrl: remove include file from <linux/device.h>") because it relies
on the pinctrl/consumer.h and pinctrl/devinfo.h being pulled in by the
device.h header implicitly.
Include these headers explicitly to avoid the build failure.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fixes: 23c35f48f5fb ("pinctrl: remove include file from <linux/device.h>")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Currently the async EQ has 256 entries only. It might not be big enough
for the SW to handle all the needed pending events. For example, in case
of many QPs (let's say 1024) connected to a SRQ created using NVMeOF target
and the target goes down, the FW will raise 1024 "last WQE reached" events
and may cause EQ overrun. Increase the EQ to more reasonable size, that beyond
it the FW should be able to delay the event and raise it later on using internal
backpressure mechanism.
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The hip06 and hip08 run on a little endian ARM, it needs to
revise the annotations to indicate that the HW uses little
endian data in the various DMA buffers, and flow the necessary
swaps throughout.
The imm_data use big endian mode. The cpu_to_le32/le32_to_cpu
swaps are no-op for this, which makes the only substantive
change the handling of imm_data which is now mandatory swapped.
This also keep match with the userspace hns driver and resolve
the warning by sparse.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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cpufreq_resume can be called even without preceding cpufreq_suspend.
This can happen in following scenario:
suspend_devices_and_enter
--> dpm_suspend_start
--> dpm_prepare
--> device_prepare : this function errors out
--> dpm_suspend: this is skipped due to dpm_prepare failure
this means cpufreq_suspend is skipped over
--> goto Recover_platform, due to previous error
--> goto Resume_devices
--> dpm_resume_end
--> dpm_resume
--> cpufreq_resume
In case schedutil is used as frequency governor, cpufreq_resume will
eventually call sugov_start, which does following:
memset(sg_cpu, 0, sizeof(*sg_cpu));
....
This effectively erases function pointer for frequency update, causing
crash later on. The function pointer would have been set correctly if
subsequent cpufreq_add_update_util_hook runs successfully, but that
function returns earlier because cpufreq_suspend was not called:
if (WARN_ON(per_cpu(cpufreq_update_util_data, cpu)))
return;
The fix is to check cpufreq_suspended first, if it's false, that means
cpufreq_suspend was not called in the first place, so do not resume
cpufreq.
Signed-off-by: Bo Yan <byan@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Dropped printing a message ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Fix the kernel-doc usage in cio to get rid of (W=1) build warnings like:
drivers/s390/cio/cio.c:1068: warning: No description found for parameter 'sch'
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Alexei Starovoitov says:
====================
pull-request: bpf 2018-02-02
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) support XDP attach in libbpf, from Eric.
2) minor fixes, from Daniel, Jakub, Yonghong, Alexei.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"Two small changes:
- a fix for a interrupt regression caused by the vector management
changes in 4.15 affecting museum pieces which rely on interrupt
probing for legacy (e.g. parallel port) devices.
One of the startup calls in the autoprobe code was not changed to
the new activate_and_startup() function resulting in a warning and
as a consequence failing to discover the device interrupt.
- a trivial update to the copyright/license header of the STM32 irq
chip driver"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Make legacy autoprobing work again
irqchip/stm32: Fix copyright
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Pull more block updates from Jens Axboe:
"Most of this is fixes and not new code/features:
- skd fix from Arnd, fixing a build error dependent on sla allocator
type.
- blk-mq scheduler discard merging fixes, one from me and one from
Keith. This fixes a segment miscalculation for blk-mq-sched, where
we mistakenly think two segments are physically contigious even
though the request isn't carrying real data. Also fixes a bio-to-rq
merge case.
- Don't re-set a bit on the buffer_head flags, if it's already set.
This can cause scalability concerns on bigger machines and
workloads. From Kemi Wang.
- Add BLK_STS_DEV_RESOURCE return value to blk-mq, allowing us to
distuingish between a local (device related) resource starvation
and a global one. The latter might happen without IO being in
flight, so it has to be handled a bit differently. From Ming"
* tag 'for-linus-20180204' of git://git.kernel.dk/linux-block:
block: skd: fix incorrect linux/slab_def.h inclusion
buffer: Avoid setting buffer bits that are already set
blk-mq-sched: Enable merging discard bio into request
blk-mq: fix discard merge with scheduler attached
blk-mq: introduce BLK_STS_DEV_RESOURCE
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Pull NTB updates from Jon Mason:
"Bug fixes galore, removal of the ntb atom driver, and updates to the
ntb tools and tests to support the multi-port interface"
* tag 'ntb-4.16' of git://github.com/jonmason/ntb: (37 commits)
NTB: ntb_perf: fix cast to restricted __le32
ntb_perf: Fix an error code in perf_copy_chunk()
ntb_hw_switchtec: Make function switchtec_ntb_remove() static
NTB: ntb_tool: fix memory leak on 'buf' on error exit path
NTB: ntb_perf: fix printing of resource_size_t
NTB: ntb_hw_idt: Set NTB_TOPO_SWITCH topology
NTB: ntb_test: Update ntb_perf tests
NTB: ntb_test: Update ntb_tool MW tests
NTB: ntb_test: Add ntb_tool Message tests
NTB: ntb_test: Update ntb_tool Scratchpad tests
NTB: ntb_test: Update ntb_tool DB tests
NTB: ntb_test: Update ntb_tool link tests
NTB: ntb_test: Add ntb_tool port tests
NTB: ntb_test: Safely use paths with whitespace
NTB: ntb_perf: Add full multi-port NTB API support
NTB: ntb_tool: Add full multi-port NTB API support
NTB: ntb_pp: Add full multi-port NTB API support
NTB: Fix UB/bug in ntb_mw_get_align()
NTB: Set dma mask and dma coherent mask to NTB devices
NTB: Rename NTB messaging API methods
...
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git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
"Misc driver changes only:
- TI-MsgMgr: Fix print format for a printk
- TI-MSgMgr: SPDX license switch for the driver
- QCOM-IPC: Convert driver to use regmap
- QCOM-IPC: Spawn sibling clock device from mailbox driver"
* tag 'mailbox-v4.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
dt-bindings: mailbox: qcom: Document the APCS clock binding
mailbox: qcom: Create APCS child device for clock controller
mailbox: qcom: Convert APCS IPC driver to use regmap
mailbox: ti-msgmgr: Use %zu for size_t print format
mailbox: ti-msgmgr: Switch to SPDX Licensing
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"I2C has the following changes for you:
- new flag to mark DMA safe buffers in i2c_msg. Also, some
infrastructure around it. And docs.
- huge refactoring of the at24 driver led by the new maintainer
Bartosz
- update I2C bus recovery to send STOP after recovery
- conversion from gpio to gpiod for I2C bus recovery
- adding a fault-injector to the i2c-gpio driver
- lots of small driver improvements, and bigger ones to
i2c-sh_mobile"
* 'i2c/for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (99 commits)
i2c: mv64xxx: Add myself as maintainer for this driver
i2c: mv64xxx: Fix clock resource by adding an optional bus clock
i2c: mv64xxx: Remove useless test before clk_disable_unprepare
i2c: mxs: use true and false for boolean values
i2c: meson: update doc description to fix build warnings
i2c: meson: add configurable divider factors
dt-bindings: i2c: update documentation for the Meson-AXG
i2c: imx-lpi2c: add runtime pm support
i2c: rcar: fix some trivial typos in comments
i2c: davinci: fix the cpufreq transition
i2c: rk3x: add proper kerneldoc header
i2c: rk3x: account for const type of of_device_id.data
i2c: acorn: remove outdated path from file header
i2c: acorn: add MODULE_LICENSE tag
i2c: rcar: implement bus recovery
i2c: send STOP after successful bus recovery
i2c: ensure SDA is released in recovery if SDA is controllable
i2c: add 'set_sda' to bus_recovery_info
i2c: add identifier in declarations for i2c_bus_recovery
i2c: make kerneldoc about bus recovery more precise
...
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We really don't want people turning this on just yet, make it very
clear with capital letters.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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These days the userspace comes from rdma-core, revise references
in the kernel to point to the current repository.
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Intel CoffeeLake SoC uses CPU ID of KabyLake but has Cannonlake PCH, so in
this case PMC register details from Cannonlake PCH must be used.
In order to identify whether the given platform is Coffeelake, scan for the
Sunrisepoint PMC PCI Id.
KBL CPUID SPT PCIID
------------------------------------
KBL | Y | Y |
------------------------------------
CFL | Y | N |
------------------------------------
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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