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Fix documentation build errors after intel_guc_loader.c was
renamed to intel_guc_fw.c.
Error: Cannot open file ../drivers/gpu/drm/i915/intel_guc_loader.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -function GuC-specific firmware loader ../drivers/gpu/drm/i915/intel_guc_loader.c' failed with return code 1
Error: Cannot open file ../drivers/gpu/drm/i915/intel_guc_loader.c
Error: Cannot open file ../drivers/gpu/drm/i915/intel_guc_loader.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -internal ../drivers/gpu/drm/i915/intel_guc_loader.c' failed with return code 2
Fixes: e8668bbcb0f9 ("drm/i915/guc: Rename intel_guc_loader.c to
intel_guc_fw.c")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1b214f53-47f5-bef3-f58e-8136de5678ed@infradead.org
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When user tries to group imc (In-Memory Collections) event with
normal event, (sometime) kernel crashes with following log:
Faulting instruction address: 0x00000000
[link register ] c00000000010ce88 power_check_constraints+0x128/0x980
...
c00000000010e238 power_pmu_event_init+0x268/0x6f0
c0000000002dc60c perf_try_init_event+0xdc/0x1a0
c0000000002dce88 perf_event_alloc+0x7b8/0xac0
c0000000002e92e0 SyS_perf_event_open+0x530/0xda0
c00000000000b004 system_call+0x38/0xe0
'event_base' field of 'struct hw_perf_event' is used as flags for
normal hw events and used as memory address for imc events. While
grouping these two types of events, collect_events() tries to
interpret imc 'event_base' as a flag, which causes a corruption
resulting in a crash.
Consider only those events which belongs to 'perf_hw_context' in
collect_events().
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Reviewed-By: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Currently, fallocate(2) with KEEP_SIZE followed by a fdatasync(2)
then crash, we'll see wrong allocated block number (stat -c %b), the
blocks allocated beyond EOF are all lost. fstests generic/468
exposes this bug.
Commit 67a7d5f561f4 ("ext4: fix fdatasync(2) after extent
manipulation operations") fixed all the other extent manipulation
operation paths such as hole punch, zero range, collapse range etc.,
but forgot the fallocate case.
So similarly, fix it by recording the correct journal tid in ext4
inode in fallocate(2) path, so that ext4_sync_file() will wait for
the right tid to be committed on fdatasync(2).
This addresses the test failure in xfstests test generic/468.
Signed-off-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
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* fixes: (27 commits)
firmware: arm_scpi: Revert updates made during v4.15 merge window
arm: dts: marvell: Add missing #phy-cells to usb-nop-xceiv
arm64: dts: sort vendor subdirectories in Makefile alphabetically
MAINTAINERS: exclude other Socionext SoC DT files from ARM/UNIPHIER entry
arm64: dts: uniphier: remove unnecessary interrupt-parent
arm64: dts: uniphier: correct on-board device IRQ number for PXs3
optee: fix invalid of_node_put() in optee_driver_init()
Revert "ARM: dts: imx53: add srtc node"
ARM: dts: vf610-zii-dev-rev-c: Fix the I2C EEPROM address
ARM: dts: am437x-cm-t43: Correct the dmas property of spi0
ARM: dts: am4372: Correct the interrupts_properties of McASP
ARM: dts: logicpd-somlv: Fix wl127x pinmux
ARM: dts: logicpd-som-lv: Fix gpmc addresses for NAND and enet
ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen
ARM: OMAP2+: Missing error code in omap_device_build()
ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function
ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context
ARM: dts: NSP: Fix PPI interrupt types
ARM: dts: NSP: Disable AHCI controller for HR NSP boards
ARM: dts: r8a779x: Add '#reset-cells' in cpg-mssr
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Revert "Merge tag 'scpi-updates-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/drivers"
Paraphrased from email from Kevin Hilman:
Revert ARM SCPI changes since v4.14.
Untested changes caused regressions in SCPI and CPUfreq/DVFS failures
on most Amlogic SoCs. Changes reverted for v4.15 so they can be better
reviewed and tested.
These ARM SCPI changes caused SCPI regressions resulting in CPUfreq
failures on most Amlogic SoCs (found by kernelci.org.)
Unfortunately, this was not caught in linux-next due to other bugs/panics
on these platforms masking this problem so we've only found it since
we've fixed the other issues.
Since we're already in the -rc cycle, I'd prefer to revert to a known
working state (that of v4.14) rather than finding/reverting a subset,
which would just lead to another untested state.
These changes can then have some time to be better reviewed and tested
and resubmitted for v4.16.
Kevin Hilman has tested this revert on the affected Amlogic SoCs and
verified that we're back to the previous (working) condition.
This reverts commit 6710acf2596a29f7351e8165d981645f403e0025, reversing
changes made to 4b367f2e8854da34d14bd154ff4432fb49f69b36.
Reported-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This is to workaround guest driver hang regression after
preemption enable that gvt hasn't enabled handling of that
for guest workload. So in effect this disables preemption
for gvt context now.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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We shouldn't mark inactive for vGPU context if preempted,
which would still be re-scheduled later. So keep active state.
Fixes: d6c0511300dc ("drm/i915/execlists: Distinguish the incomplete context notifies")
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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The current schedule policy rely on a 1ms timer to execute workload. This
can introduce maximum 1ms unnecessary latency. This is especially bad for
small media workloads.
And I don't think we need this timer for QoS, but the change is not simply
remove the code. So I made a new API intel_gvt_kick_schedule() for future
change.
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Convert the macro to a function which should always be preferred.
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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The per vGPU dmabuf_obj list should be released in intel_vgpu_dmabuf_
cleanup, which is invoked either in the process of closing a VM or in
the process of removing a vGPU.
Fixes: e3a0d7976c53 ("drm/i915/gvt: Handle orphan dmabuf_objs")
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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This patch introduces KBL platform to dma-buf on Gvt-g.
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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dmabuf_obj's destruction relys on GEM release operation, which is managed
in i915 driver. And there is a time window between vgpu's destruction and
its dmabuf_objs' destruction. This patch is to free the orphan dmabuf_objs
correctly after the vgpu passes away.
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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This patch introduces a guest's framebuffer sharing mechanism based on
dma-buf subsystem. With this sharing mechanism, guest's framebuffer can
be shared between guest VM and host.
v17:
- modify VFIO_DEVICE_GET_GFX_DMABUF interface. (Alex)
v16:
- add x_hot and y_hot. (Gerd)
- add flag validation for VFIO_DEVICE_GET_GFX_DMABUF. (Alex)
- rebase 4.14.0-rc6.
v15:
- add VFIO_DEVICE_GET_GFX_DMABUF ABI. (Gerd)
- add intel_vgpu_dmabuf_cleanup() to clean up the vGPU's dmabuf. (Gerd)
v14:
- add PROBE, DMABUF and REGION flags. (Alex)
v12:
- refine the lifecycle of dmabuf.
v9:
- remove dma-buf management. (Alex)
- track the dma-buf create and release in kernel mode. (Gerd) (Daniel)
v8:
- refine the dma-buf ioctl definition.(Alex)
- add a lock to protect the dmabuf list. (Alex)
v7:
- release dma-buf related allocations in dma-buf's associated release
function. (Alex)
- refine ioctl interface for querying plane info or create dma-buf.
(Alex)
v6:
- align the dma-buf life cycle with the vfio device. (Alex)
- add the dma-buf related operations in a separate patch. (Gerd)
- i915 related changes. (Chris)
v5:
- fix bug while checking whether the gem obj is gvt's dma-buf when user
change caching mode or domains. Add a helper function to do it.
(Xiaoguang)
- add definition for the query plane and create dma-buf. (Xiaoguang)
v4:
- fix bug while checking whether the gem obj is gvt's dma-buf when set
caching mode or doamins. (Xiaoguang)
v3:
- declare a new flag I915_GEM_OBJECT_IS_GVT_DMABUF in drm_i915_gem_object
to represent the gem obj for gvt's dma-buf. The tiling mode, caching
mode and domains can not be changed for this kind of gem object. (Alex)
- change dma-buf related information to be more generic. So other vendor
can use the same interface. (Alex)
v2:
- create a management fd for dma-buf operations. (Alex)
- alloc gem object's backing storage in gem obj's get_pages() callback.
(Chris)
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Add VFIO_DEVICE_QUERY_GFX_PLANE ioctl command to let user query and get
a plane and its information. So far, two types of buffers are supported:
buffers based on dma-buf and buffers based on region.
This ioctl can be invoked with:
1) Either DMABUF or REGION flag. Vendor driver returns a plane_info
successfully only when the specific kind of buffer is supported.
2) Flag PROBE. And at the same time either DMABUF or REGION must be set,
so that vendor driver returns success only when the specific kind of
buffer is supported.
Add VFIO_DEVICE_GET_GFX_DMABUF ioctl command to let user get a specific
dma-buf fd of an exposed MDEV buffer provided by dmabuf_id which was
returned in VFIO_DEVICE_QUERY_GFX_PLANE ioctl command.
The life cycle of an exposed MDEV buffer is handled by userspace and
tracked by kernel space. The returned dmabuf_id in struct vfio_device_
query_gfx_plane can be a new id of a new exposed buffer or an old id of
a re-exported buffer. Host user can check the value of dmabuf_id to see
if it needs to create new resources according to the new exposed buffer
or just re-use the existing resource related to the old buffer.
v18:
- update comments for VFIO_DEVICE_GET_GFX_DMABUF. (Alex)
v17:
- modify VFIO_DEVICE_GET_GFX_DMABUF interface. (Alex)
v16:
- add x_hot and y_hot fields. (Gerd)
- add comments for VFIO_DEVICE_GET_GFX_DMABUF. (Alex)
- rebase to 4.14.0-rc6.
v15:
- add a ioctl to get a dmabuf for a given dmabuf id. (Gerd)
v14:
- add PROBE, DMABUF and REGION flags. (Alex)
v12:
- add drm_format_mod back. (Gerd and Zhenyu)
- add region_index. (Gerd)
v11:
- rename plane_type to drm_plane_type. (Gerd)
- move fields of vfio_device_query_gfx_plane to vfio_device_gfx_plane_info.
(Gerd)
- remove drm_format_mod, start fields. (Daniel)
- remove plane_id.
v10:
- refine the ABI API VFIO_DEVICE_QUERY_GFX_PLANE. (Alex) (Gerd)
v3:
- add a field gvt_plane_info in the drm_i915_gem_obj structure to save
the decoded plane information to avoid look up while need the plane
info. (Gerd)
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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This patch is to introduce the framebuffer decoder which can decode guest
OS's framebuffer information, including primary, cursor and sprite plane.
v16:
- rebase to 4.14.0-rc6.
v14:
- refine pixel format table. (Zhenyu)
v9:
- move drm format change to a separate patch. (Xiaoguang)
v8:
- fix a bug in decoding primary plane. (Tina)
v7:
- refine framebuffer decoder code. (Zhenyu)
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Windows guest driver needs vbt in opregion, to configure the setting
for display. Without opregion support, the display registers won't
be set and this blocks display model to get the correct information
of the guest display plane.
This patch is to provide a virtual opregion for guest. The original
author of this patch is Xiaoguang Chen.
This patch is split from the "Dma-buf support for GVT-g" patch set,
with being rebased to the latest gvt-staging branch.
v3:
- add checking region index during intel_vgpu_rw. (Xiong)
v2:
- refine intel_vgpu_reg_release_opregion. (Xiong)
Here are the previous version comments:
v18:
- unmap vgpu's opregion when destroying vgpu.
v16:
- rebase to 4.14.0-rc6.
Signed-off-by: Bing Niu <bing.niu@intel.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Tested-by: Xiong Zhang <xiong.y.zhang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Currently guest opregion is allocated and initialised when guest
write opregion base register. This is too late for kvmgt, so
move it to vgpu_create time.
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Tested-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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sparse spots
drivers/gpu/drm/i915/gvt/opregion.c:234 alloc_and_init_virt_opregion() error: memcpy() 'header->signature' too small (16 vs 17)
as gvt is indeed trying to memcpy a string longer than the signature[].
Fixes: b2d6ef70614e ("drm/i915/gvt: Let each vgpu has separate opregion memory")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Xiong Zhang <xiong.y.zhang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: intel-gvt-dev@lists.freedesktop.org
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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407cd7fb83c0 (ext4: change fast symlink test to not rely on i_blocks)
broke ~10 years old ext3 file systems created by 2.6.17. Any ELF
executable fails because the /lib/ld-linux.so.2 fast symlink
cannot be read anymore.
The patch assumed fast symlinks were created in a specific way,
but that's not true on these really old file systems.
The new behavior is apparently needed only with the large EA inode
feature.
Revert to the old behavior if the large EA inode feature is not set.
This makes my old VM boot again.
Fixes: 407cd7fb83c0 (ext4: change fast symlink test to not rely on i_blocks)
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.15-rc cycle with two fixes for hangs with the
rest being compiler warning fixes and fixes for power states and devices
on various boards:
- Fix smatch issue introduced by recent omap device changes for legacy
resources
- Fix SRAM virt to phys related boot hang affecting n900 and other omap3 hs
devices found by pending CMA changes. While it seems that we have not hit
this in other use cases, let's fix it to avoid a nasty and hard to find
suprise as right now there is just luck keeping the SRAM virtual address
to physical address translation working with the 0xffff high_mask.
- Fix am335x reading of domain state registers that only exist for the
PM_CEFUSE domain and produce wrong results for other domains
- Fix missing setting for error code for omap device if allocation fails
- Fix missing modules_offs for omap3 MMC3 affecting n9/n950
- Fix cm_split_idlest() reading reserved registers showing wrong
idlestatus
- Fixes to correct #phy-cells property for compiler warnings that
recently started happening
- Add a missing OHCI remote-wakeup-connected property that I was supposed
to merge after the ohci-omap3 to ohci-platform changes but somehow managed
to drop. I only noticed this was missing while debugging the OHCI/EHCI GPS
and modem hang
- Fix a system hang with GPS or modem connected to the OHCI/EHCI bus that
typically happened within 20 - 40 minutes on an idle system. This turned
out to be an issue caused by using the parent interrupt controller directly
with the WUGEN + GIC stacked interrupt controller domains
- Fixes for logicpd-somlv GPMC for Ethernet and NAND that clearly
have been broken since we changed GPMC to use the interrupt controller
binding for some pins. And fix the wrong pin muxing for WLAN while at it
- Fixes for am437x interrupt and dma properties to fix compiler warnings
that recently started happening
* tag 'omap-for-v4.15/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am437x-cm-t43: Correct the dmas property of spi0
ARM: dts: am4372: Correct the interrupts_properties of McASP
ARM: dts: logicpd-somlv: Fix wl127x pinmux
ARM: dts: logicpd-som-lv: Fix gpmc addresses for NAND and enet
ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen
ARM: OMAP2+: Missing error code in omap_device_build()
ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function
ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context
ARM: dts: Add remote-wakeup-connected for omap OHCI
ARM: dts: am33xx: Add missing #phy-cells to ti,am335x-usb-phy
ARM: dts: omap: Add missing #phy-cells to usb-nop-xceiv
ARM: OMAP2+: Fix smatch found issue for omap_device
ARM: OMAP2/3: CM: fix cm_split_idlest functionality
ARM: OMAP3: hwmod_data: add missing module_offs for MMC3
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
More change sets for 4.16:
- Many improvements for selftests and other igt tests (Chris)
- Forcewake with PUNIT->PMIC bus fixes and robustness (Hans)
- Define an engine class for uABI (Tvrtko)
- Context switch fixes and improvements (Chris)
- GT powersavings and power gating simplification and fixes (Chris)
- Other general driver clean-ups (Chris, Lucas, Ville)
- Removing old, useless and/or bad workarounds (Chris, Oscar, Radhakrishna)
- IPS, pipe config, etc in preparation for another Fast Boot attempt (Maarten)
- OA perf fixes and support to Coffee Lake and Cannonlake (Lionel)
- Fixes around GPU fault registers (Michel)
- GEM Proxy (Tina)
- Refactor of Geminilake and Cannonlake plane color handling (James)
- Generalize transcoder loop (Mika Kahola)
- New HW Workaround for Cannonlake and Geminilake (Rodrigo)
- Resume GuC before using GEM (Chris)
- Stolen Memory handling improvements (Ville)
- Initialize entry in PPAT for older compilers (Chris)
- Other fixes and robustness improvements on execbuf (Chris)
- Improve logs of GEM_BUG_ON (Mika Kuoppala)
- Rework with massive rename of GuC functions and files (Sagar)
- Don't sanitize frame start delay if pipe is off (Ville)
- Cannonlake clock fixes (Rodrigo)
- Cannonlake HDMI 2.0 support (Rodrigo)
- Add a GuC doorbells selftest (Michel)
- Add might_sleep() check to our wait_for() (Chris)
Many GVT changes for 4.16:
- CSB HWSP update support (Weinan)
- GVT debug helpers, dyndbg and debugfs (Chuanxiao, Shuo)
- full virtualized opregion (Xiaolin)
- VM health check for sane fallback (Fred)
- workload submission code refactor for future enabling (Zhi)
- Updated repo URL in MAINTAINERS (Zhenyu)
- other many misc fixes
* tag 'drm-intel-next-2017-11-17-1' of git://anongit.freedesktop.org/drm/drm-intel: (260 commits)
drm/i915: Update DRIVER_DATE to 20171117
drm/i915: Add a policy note for removing workarounds
drm/i915/selftests: Report ENOMEM clearly for an allocation failure
Revert "drm/i915: Display WA #1133 WaFbcSkipSegments:cnl, glk"
drm/i915: Calculate g4x intermediate watermarks correctly
drm/i915: Calculate vlv/chv intermediate watermarks correctly, v3.
drm/i915: Pass crtc_state to ips toggle functions, v2
drm/i915: Pass idle crtc_state to intel_dp_sink_crc
drm/i915: Enable FIFO underrun reporting after initial fastset, v4.
drm/i915: Mark the userptr invalidate workqueue as WQ_MEM_RECLAIM
drm/i915: Add might_sleep() check to wait_for()
drm/i915/selftests: Add a GuC doorbells selftest
drm/i915/cnl: Extend HDMI 2.0 support to CNL.
drm/i915/cnl: Simplify dco_fraction calculation.
drm/i915/cnl: Don't blindly replace qdiv.
drm/i915/cnl: Fix wrpll math for higher freqs.
drm/i915/cnl: Fix, simplify and unify wrpll variable sizes.
drm/i915/cnl: Remove useless conversion.
drm/i915/cnl: Remove spurious central_freq.
drm/i915/selftests: exercise_ggtt may have nothing to do
...
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Commit be7635e7287e ("arch, ftrace: for KASAN put hard/soft IRQ entries
into separate sections") added a new linker section, SOFTIRQENTRY_TEXT,
to the linker scripts for most architectures. It didn't add it to any of
the linker scripts for the m68k architecture. This was not really a problem
because it is only defined if either of CONFIG_FUNCTION_GRAPH_TRACER or
CONFIG_KASAN are enabled - which can never be true for m68k.
However commit 229a71860547 ("irq: Make the irqentry text section
unconditional") means that SOFTIRQENTRY_TEXT is now always defined. So on
m68k we now end up with a separate ELF section for .softirqentry.text
instead of it being part of the .text section. On some m68k targets in some
configurations this can also cause a fatal link error:
LD vmlinux
/usr/local/bin/../m68k-uclinux/bin/ld.real: section .softirqentry.text loaded at [0000000010de10c0,0000000010de12dd] overlaps section .rodata loaded at [0000000010de10c0,0000000010e0fd67]
To fix add in the missing SOFTIRQENTRY_TEXT section into the m68k linker
scripts. I noticed that m68k is also missing the IRQENTRY_TEXT section,
so this patch also adds an entry for that too.
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
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The pci/htirq.c file was removed so remove it from the documentation
file also.
Error: Cannot open file ../drivers/pci/htirq.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -export ../drivers/pci/htirq.c' failed with return code 2
Fixes: fd2fa6c18b72 ("x86/PCI: Remove unused HyperTransport interrupt support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The at24 driver creates dummy I2C devices to access offsets in the chip
that are outside the area supported using a single I2C address. It is not
meaningful to use runtime PM to such devices; the system firmware (ACPI)
does not know about these devices nor runtime PM was enabled for them.
Always use the real device instead of the dummy ones.
Fixes: 98e8201039af ("eeprom: at24: enable runtime pm support")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Sven Van Asbroeck on a 24AA16/24LC16B <svendev@arcx.com>
[Bartosz: rebased on top of previous fixes for 4.15, tweaked the
commit message]
[Sven: fixed Bartosz's rebase]
Signed-off-by: Sven Van Asbroeck <svendev@arcx.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
Cross-subsystem Changes:
- device tree doc for the Mitsubishi AA070MC01 and Tianma TM070RVHG71
panels (Lukasz Majewski) and for a 2nd endpoint on stm32 (Philippe Cornu)
Core Changes:
The most important changes are:
- Add drm_driver .last_close and .output_poll_changed helpers to reduce
fbdev emulation footprint in drivers (Noralf)
- Fix plane clipping in core and for vmwgfx (Ville)
Then we have a bunch of of improvement for print and debug such as the
addition of a framebuffer debugfs file. ELD connector, HDMI and
improvements. And a bunch of misc improvements, clean ups and style
changes and doc updates
[airlied: drop eld bits from amdgpu_dm]
Driver Changes:
- sii8620: filter unsupported modes and add DVI mode support (Maciej Purski)
- rockchip: analogix_dp: Remove unnecessary init code (Jeffy Chen)
- virtio, cirrus: add fb create_handle support to enable screenshots(Lepton Wu)
- virtio: replace reference/unreference with get/put (Aastha Gupta)
- vc4, gma500: Convert timers to use timer_setup() (Kees Cook)
- vc4: Reject HDMI modes with too high of clocks (Eric)
- vc4: Add support for more pixel formats (Dave Stevenson)
- stm: dsi: Rename driver name to "stm32-display-dsi" (Philippe Cornu)
- stm: ltdc: add a 2nd endpoint (Philippe Cornu)
- via: use monotonic time for VIA_WAIT_IRQ (Arnd Bergmann)
* tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc: (96 commits)
drm/bridge: tc358767: add copyright lines
MAINTAINERS: change maintainer for Rockchip drm drivers
drm/vblank: Fix vblank timestamp debugs
drm/via: use monotonic time for VIA_WAIT_IRQ
dma-buf: Fix ifnullfree.cocci warnings
drm/printer: Add drm_vprintf()
drm/edid: Allow HDMI infoframe without VIC or S3D
video/hdmi: Allow "empty" HDMI infoframes
dma-buf/fence: Fix lock inversion within dma-fence-array
drm/sti: Handle return value of platform_get_irq_byname
drm/vc4: Add support for NV21 and NV61.
drm/vc4: Use .pixel_order instead of custom .flip_cbcr
drm/vc4: Add support for DRM_FORMAT_RGB888 and DRM_FORMAT_BGR888
drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
drm: Check crtc_state->enable rather than crtc->enabled in drm_plane_helper_check_state()
drm/vmwgfx: Try to fix plane clipping
drm/vmwgfx: Use drm_plane_helper_check_state()
drm/vmwgfx: Remove bogus crtc coords vs fb size check
gpu: gma500: remove unneeded DRIVER_LICENSE #define
drm: don't link DP aux i2c adapter to the hardware device node
...
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Daniel Borkmann says:
====================
pull-request: bpf 2017-12-02
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a compilation warning in xdp redirect tracepoint due to
missing bpf.h include that pulls in struct bpf_map, from Xie.
2) Limit the maximum number of attachable BPF progs for a given
perf event as long as uabi is not frozen yet. The hard upper
limit is now 64 and therefore the same as with BPF multi-prog
for cgroups. Also add related error checking for the sample
BPF loader when enabling and attaching to the perf event, from
Yonghong.
3) Specifically set the RLIMIT_MEMLOCK for the test_verifier_log
case, so that the test case can always pass and not fail in
some environments due to too low default limit, also from
Yonghong.
4) Fix up a missing license header comment for kernel/bpf/offload.c,
from Jakub.
5) Several fixes for bpftool, among others a crash on incorrect
arguments when json output is used, error message handling
fixes on unknown options and proper destruction of json writer
for some exit cases, all from Quentin.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet says:
====================
tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()
James Morris reported kernel stack corruption bug that
we tracked back to commit 971f10eca186 ("tcp: better TCP_SKB_CB
layout to reduce cache line misses")
First patch needs to be backported to kernels >= 3.18,
while second patch needs to be backported to kernels >= 4.9, since
this was the time when inet_exact_dif_match appeared.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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After this fix : ("tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()"),
socket lookups happen while skb->cb[] has not been mangled yet by TCP.
Fixes: a04a480d4392 ("net: Require exact match for TCP socket lookups if dif is l3mdev")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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James Morris reported kernel stack corruption bug [1] while
running the SELinux testsuite, and bisected to a recent
commit bffa72cf7f9d ("net: sk_buff rbnode reorg")
We believe this commit is fine, but exposes an older bug.
SELinux code runs from tcp_filter() and might send an ICMP,
expecting IP options to be found in skb->cb[] using regular IPCB placement.
We need to defer TCP mangling of skb->cb[] after tcp_filter() calls.
This patch adds tcp_v4_fill_cb()/tcp_v4_restore_cb() in a very
similar way we added them for IPv6.
[1]
[ 339.806024] SELinux: failure in selinux_parse_skb(), unable to parse packet
[ 339.822505] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff81745af5
[ 339.822505]
[ 339.852250] CPU: 4 PID: 3642 Comm: client Not tainted 4.15.0-rc1-test #15
[ 339.868498] Hardware name: LENOVO 10FGS0VA1L/30BC, BIOS FWKT68A 01/19/2017
[ 339.885060] Call Trace:
[ 339.896875] <IRQ>
[ 339.908103] dump_stack+0x63/0x87
[ 339.920645] panic+0xe8/0x248
[ 339.932668] ? ip_push_pending_frames+0x33/0x40
[ 339.946328] ? icmp_send+0x525/0x530
[ 339.958861] ? kfree_skbmem+0x60/0x70
[ 339.971431] __stack_chk_fail+0x1b/0x20
[ 339.984049] icmp_send+0x525/0x530
[ 339.996205] ? netlbl_skbuff_err+0x36/0x40
[ 340.008997] ? selinux_netlbl_err+0x11/0x20
[ 340.021816] ? selinux_socket_sock_rcv_skb+0x211/0x230
[ 340.035529] ? security_sock_rcv_skb+0x3b/0x50
[ 340.048471] ? sk_filter_trim_cap+0x44/0x1c0
[ 340.061246] ? tcp_v4_inbound_md5_hash+0x69/0x1b0
[ 340.074562] ? tcp_filter+0x2c/0x40
[ 340.086400] ? tcp_v4_rcv+0x820/0xa20
[ 340.098329] ? ip_local_deliver_finish+0x71/0x1a0
[ 340.111279] ? ip_local_deliver+0x6f/0xe0
[ 340.123535] ? ip_rcv_finish+0x3a0/0x3a0
[ 340.135523] ? ip_rcv_finish+0xdb/0x3a0
[ 340.147442] ? ip_rcv+0x27c/0x3c0
[ 340.158668] ? inet_del_offload+0x40/0x40
[ 340.170580] ? __netif_receive_skb_core+0x4ac/0x900
[ 340.183285] ? rcu_accelerate_cbs+0x5b/0x80
[ 340.195282] ? __netif_receive_skb+0x18/0x60
[ 340.207288] ? process_backlog+0x95/0x140
[ 340.218948] ? net_rx_action+0x26c/0x3b0
[ 340.230416] ? __do_softirq+0xc9/0x26a
[ 340.241625] ? do_softirq_own_stack+0x2a/0x40
[ 340.253368] </IRQ>
[ 340.262673] ? do_softirq+0x50/0x60
[ 340.273450] ? __local_bh_enable_ip+0x57/0x60
[ 340.285045] ? ip_finish_output2+0x175/0x350
[ 340.296403] ? ip_finish_output+0x127/0x1d0
[ 340.307665] ? nf_hook_slow+0x3c/0xb0
[ 340.318230] ? ip_output+0x72/0xe0
[ 340.328524] ? ip_fragment.constprop.54+0x80/0x80
[ 340.340070] ? ip_local_out+0x35/0x40
[ 340.350497] ? ip_queue_xmit+0x15c/0x3f0
[ 340.361060] ? __kmalloc_reserve.isra.40+0x31/0x90
[ 340.372484] ? __skb_clone+0x2e/0x130
[ 340.382633] ? tcp_transmit_skb+0x558/0xa10
[ 340.393262] ? tcp_connect+0x938/0xad0
[ 340.403370] ? ktime_get_with_offset+0x4c/0xb0
[ 340.414206] ? tcp_v4_connect+0x457/0x4e0
[ 340.424471] ? __inet_stream_connect+0xb3/0x300
[ 340.435195] ? inet_stream_connect+0x3b/0x60
[ 340.445607] ? SYSC_connect+0xd9/0x110
[ 340.455455] ? __audit_syscall_entry+0xaf/0x100
[ 340.466112] ? syscall_trace_enter+0x1d0/0x2b0
[ 340.476636] ? __audit_syscall_exit+0x209/0x290
[ 340.487151] ? SyS_connect+0xe/0x10
[ 340.496453] ? do_syscall_64+0x67/0x1b0
[ 340.506078] ? entry_SYSCALL64_slow_path+0x25/0x25
Fixes: 971f10eca186 ("tcp: better TCP_SKB_CB layout to reduce cache line misses")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: James Morris <james.l.morris@oracle.com>
Tested-by: James Morris <james.l.morris@oracle.com>
Tested-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull ARM fix from Russell King:
"Just one fix this time around, for the late commit in the merge window
that triggered a problem with qemu. Qemu is apparently also going to
receive a fix for the discovered issue"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: avoid faulting on qemu
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Here are two bugfixes for I2C, fixing a memleak in the core and irq
allocation for i801.
Also three bugfixes for the at24 eeprom driver which Bartosz collected
while taking over maintainership for this driver"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
eeprom: at24: check at24_read/write arguments
eeprom: at24: fix reading from 24MAC402/24MAC602
eeprom: at24: correctly set the size for at24mac402
i2c: i2c-boardinfo: fix memory leaks on devinfo
i2c: i801: Fix Failed to allocate irq -2147483648 error
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fixes:
- Drop reference to obsolete maintainer tree
- Fix overflow bug in pmbus driver
- Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this
should be considered a bug fix or a feature. Peter says "it fixes real
problems where the application misbehave due to faulty content when
reading from an eeprom", and he needs the patch in his company's v4.14
images. This is good enough for me and warrants backport to stable
kernels"
* tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (jc42) optionally try to disable the SMBUS timeout
hwmon: (pmbus) Use 64bit math for DIRECT format values
hwmon: Drop reference to Jean's tree
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Fix the MAINTAINERS record so that it's more obvious who the maintainer for
AF_RXRPC is.
Reported-by: Joe Perches <joe@perches.com>
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In rxrpc_release_sock() there may be no rx->local value to access, so we
can't unconditionally follow it to the rxrpc network namespace information
to poke the connection reapers.
Instead, use the socket's namespace pointer to find the namespace.
This unfixed code causes the following static checker warning:
net/rxrpc/af_rxrpc.c:898 rxrpc_release_sock()
error: we previously assumed 'rx->local' could be null (see line 887)
Fixes: 3d18cbb7fd0c ("rxrpc: Fix conn expiry timers")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First set of IIO fixes in the 4.15 cycle.
* kernel-doc
- fix a build error from symbols ending in _ by making them _*
* cpcap
- Fix wrong handling of platform_get_irq_by_name which can return a
postive value on success.
* max30102
- ABI says temperature should bein milli Celsius after scaling. Here it
was in Celsius.
* meson-saradc:
- for Meson8/8b the gate clock bit was wrongly selected due to ffs/fls fun.
- bandgap was not initialized properly on older socs. Mostly got away
with this because the bootloader was doing it for us.
- Meson8/8b don't have some registers in the general regmap config. Give
them their own ones.
* stm32-lptimer/stm32-adc trigger
- Fix a link error when optional stm32-lptimer driver isn't built.
* sx9500
- we recently removed explict handling of ACPI provided gpio interrupts
as the core i2c acpi code started providing them directly. Unfortuantely
there are ACPI tables out there that use GpioIO resources and it doesn't
know to map those as interrupts. As such partial revert the removal
of this handling from the driver.
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Remove one extraneous level of indentation on assignment statement.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2017-12-01
this is a pull for net consisting of nine patches.
The first three patches are by Jimmy Assarsson for the kvaser_usb driver
and add the missing free()s in some error path, a signed/unsigned
comparison and ratelimit the error messages in case of incomplete
messages. Oliver Stäbler's patch for the ti_hecc driver fix the napi
poll function's return value. The return values of the probe function of
the peak_canfd and peak_pci PCI drivers are fixed by Stephane Grosjean's
patch. Two patches by me for the flexcan driver update the
bugs/features/quirks overview table and fix the error state transition
for the VF610 SoC. The two patches by Martin Kelly for the mcba_usb
driver fix a typo and a device disconnect bug.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current
Please consider pulling the following fixes for v4.15. While it doesn't
fix any regression introduced in the v4.15 merge window, we have a
feature in at24 since linux v4.8 - reading the mac address block from
at24mac series - which turned out to be not working.
This pull request contains changes that fix it together with a patch
that hardens the read and write argument sanitization with
out-of-bounds checks that were missing.
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The mss variable tracks the last max segment size sent to the TSO
engine. We do not update the hardware as long as we receive skb:s with
the same value in gso_size.
During a network device down/up cycle (mapped to stmmac_release() and
stmmac_open() callbacks) we issue a reset to the hardware and it
forgets the setting for mss. However we did not zero out our mss
variable so the next transmission of a gso packet happens with an
undefined hardware setting.
This triggers a hang in the TSO engine and eventuelly the netdev
watchdog will bark.
Fixes: f748be531d70 ("stmmac: support new GMAC4")
Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Current codes don't use skb->mark to assign flowi4_mark, it would
make the policy route rule with fwmark doesn't work as expected.
Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Julian Wiedmann says:
====================
s390/qeth: fixes 2017-12-01
please apply the following three fixes for 4.15. These should also go
back to stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The current GSO skb size limit was copy&pasted over from the L3 path,
where it is needed due to a TSO limitation.
As L2 devices don't offer TSO support (and thus all GSO skbs are
segmented before they reach the driver), there's no reason to restrict
the stack in how large it may build the GSO skbs.
Fixes: d52aec97e5bc ("qeth: enable scatter/gather in layer 2 mode")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Using GSO with small MTUs currently results in a substantial throughput
regression - which is caused by how qeth needs to map non-linear skbs
into its IO buffer elements:
compared to a linear skb, each GSO-segmented skb effectively consumes
twice as many buffer elements (ie two instead of one) due to the
additional header-only part. This causes the Output Queue to be
congested with low-utilized IO buffers.
Fix this as follows:
If the MSS is low enough so that a non-SG GSO segmentation produces
order-0 skbs (currently ~3500 byte), opt out from NETIF_F_SG. This is
where we anticipate the biggest savings, since an SG-enabled
GSO segmentation produces skbs that always consume at least two
buffer elements.
Larger MSS values continue to get a SG-enabled GSO segmentation, since
1) the relative overhead of the additional header-only buffer element
becomes less noticeable, and
2) the linearization overhead increases.
With the throughput regression fixed, re-enable NETIF_F_SG by default to
reap the significant CPU savings of GSO.
Fixes: 5722963a8e83 ("qeth: do not turn on SG per default")
Reported-by: Nils Hoppmann <niho@de.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 5f78e29ceebf ("qeth: optimize IP handling in rx_mode callback")
reworked how secondary addresses are managed for qeth devices.
Instead of dropping & subsequently re-adding all addresses on every
ndo_set_rx_mode() call, qeth now keeps track of the addresses that are
currently registered with the HW.
On a ndo_set_rx_mode(), we thus only need to do (de-)registration
requests for the addresses that have actually changed.
On L3 devices, the lookup for IPv4 Multicast addresses checks the wrong
hashtable - and thus never finds a match. As a result, we first delete
*all* such addresses, and then re-add them again. So each set_rx_mode()
causes a short period where the IPv4 Multicast addresses are not
registered, and the card stops forwarding inbound traffic for them.
Fix this by setting the ->is_multicast flag on the lookup object, thus
enabling qeth_l3_ip_from_hash() to search the correct hashtable and
find a match there.
Fixes: 5f78e29ceebf ("qeth: optimize IP handling in rx_mode callback")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Wei Xu says:
====================
vhost: fix a few skb leaks
Matthew found a roughly 40% tcp throughput regression with commit
c67df11f(vhost_net: try batch dequing from skb array) as discussed
in the following thread:
https://www.mail-archive.com/netdev@vger.kernel.org/msg187936.html
v4:
- fix zero iov iterator count in tap/tap_do_read()(Jason)
- don't put tun in case of EBADFD(Jason)
- Replace msg->msg_control with new 'skb' when calling tun/tap_do_read()
v3:
- move freeing skb from vhost to tun/tap recvmsg() to not
confuse the callers.
v2:
- add Matthew as the reporter, thanks matthew.
- moving zero headcount check ahead instead of defer consuming skb
due to jason and mst's comment.
- add freeing skb in favor of recvmsg() fails.
====================
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tap_recvmsg() supports accepting skb by msg_control after
commit 3b4ba04acca8 ("tap: support receiving skb from msg_control"),
the skb if presented should be freed within the function, otherwise
it would be leaked.
Signed-off-by: Wei Xu <wexu@redhat.com>
Reported-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tun_recvmsg() supports accepting skb by msg_control after
commit ac77cfd4258f ("tun: support receiving skb through msg_control"),
the skb if presented should be freed no matter how far it can go
along, otherwise it would be leaked.
This patch fixes several missed cases.
Signed-off-by: Wei Xu <wexu@redhat.com>
Reported-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Matthew found a roughly 40% tcp throughput regression with commit
c67df11f(vhost_net: try batch dequing from skb array) as discussed
in the following thread:
https://www.mail-archive.com/netdev@vger.kernel.org/msg187936.html
Eventually we figured out that it was a skb leak in handle_rx()
when sending packets to the VM. This usually happens when a guest
can not drain out vq as fast as vhost fills in, afterwards it sets
off the traffic jam and leaks skb(s) which occurs as no headcount
to send on the vq from vhost side.
This can be avoided by making sure we have got enough headcount
before actually consuming a skb from the batched rx array while
transmitting, which is simply done by moving checking the zero
headcount a bit ahead.
Signed-off-by: Wei Xu <wexu@redhat.com>
Reported-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Chan says:
====================
bnxt_en: Fixes.
A shutdown fix for SMARTNIC, 2 fixes related to TC Flower vxlan
filters, and the last one fixes an out-of-scope variable when sending
short firmware messages.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
