18 Apr, 2019
1 commit
-
Add structure dma_buf_phys to store physical address.
Add DMA_BUF_IOCTL_PHYS to export physical address.TODO: checkpatch warnings
Change-Id: Ib2f24b33462d603f2cbeef975689aaf82447d088
Signed-off-by: ivan.liu
Signed-off-by: Vipul Kumar
Signed-off-by: Srikanth Krishnakar
16 Jul, 2018
1 commit
-
Fixes the BUG_ON spuriously triggering under the following
circumstances:* reservation_object_reserve_shared is called with shared_count ==
shared_max - 1, so obj->staged is freed in preparation of an in-place
update.* reservation_object_add_shared_fence is called with the first fence,
after which shared_count == shared_max.* reservation_object_add_shared_fence is called with a follow-up fence
from the same context.In the second reservation_object_add_shared_fence call, the BUG_ON
triggers. However, nothing bad would happen in
reservation_object_add_shared_inplace, since both fences are from the
same context, so they only occupy a single slot.Prevent this by moving the BUG_ON to where an overflow would actually
happen (e.g. if a buggy caller didn't call
reservation_object_reserve_shared before).v2:
* Fix description of breaking scenario (Christian König)
* Add bugzilla referenceCc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/106418
Reviewed-by: Chris Wilson # v1
Reviewed-by: Christian König # v1
Signed-off-by: Michel Dänzer
Signed-off-by: Sumit Semwal
Link: https://patchwork.freedesktop.org/patch/msgid/20180704151405.10357-1-michel@daenzer.net
06 Jul, 2018
1 commit
-
drm-misc-next for 4.19:
UAPI Changes:
v3d: add fourcc modicfier for fourcc for the Broadcom UIF format (Eric Anholt)Cross-subsystem Changes:
console/fbcon: Add support for deferred console takeover (Hans de Goede)Core Changes:
dma-fence clean up, improvements and docs (Daniel Vetter)
add mask function for crtc, plane, encoder and connector DRM objects(Ville Syrjälä)Driver Changes:
pl111: add Nomadik LCDC variant (Linus Walleij)Signed-off-by: Dave Airlie
Link: https://patchwork.freedesktop.org/patch/msgid/20180704234641.GA3981@juma
04 Jul, 2018
1 commit
-
- Intro section that links to how this is exposed to userspace.
- Lots more hyperlinks.
- Minor clarifications and style polishv2: Add misplaced hunk of kerneldoc from a different patch.
Reviewed-by: Christian König
Signed-off-by: Daniel Vetter
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180704092909.6599-6-daniel.vetter@ffwll.ch
03 Jul, 2018
2 commits
-
Almost everyone uses dma_fence_default_wait.
v2: Also remove the BUG_ON(!ops->wait) (Chris).
Reviewed-by: Christian König (v1)
Signed-off-by: Daniel Vetter
Cc: Chris Wilson
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180503142603.28513-5-daniel.vetter@ffwll.ch -
The current Wound-Wait mutex algorithm is actually not Wound-Wait but
Wait-Die. Implement also Wound-Wait as a per-ww-class choice. Wound-Wait
is, contrary to Wait-Die a preemptive algorithm and is known to generate
fewer backoffs. Testing reveals that this is true if the
number of simultaneous contending transactions is small.
As the number of simultaneous contending threads increases, Wait-Wound
becomes inferior to Wait-Die in terms of elapsed time.
Possibly due to the larger number of held locks of sleeping transactions.Update documentation and callers.
Timings using git://people.freedesktop.org/~thomash/ww_mutex_test
tag patch-18-06-15Each thread runs 100000 batches of lock / unlock 800 ww mutexes randomly
chosen out of 100000. Four core Intel x86_64:Algorithm #threads Rollbacks time
Wound-Wait 4 ~100 ~17s.
Wait-Die 4 ~150000 ~19s.
Wound-Wait 16 ~360000 ~109s.
Wait-Die 16 ~450000 ~82s.Cc: Ingo Molnar
Cc: Jonathan Corbet
Cc: Gustavo Padovan
Cc: Maarten Lankhorst
Cc: Sean Paul
Cc: David Airlie
Cc: Davidlohr Bueso
Cc: "Paul E. McKenney"
Cc: Josh Triplett
Cc: Thomas Gleixner
Cc: Kate Stewart
Cc: Philippe Ombredanne
Cc: Greg Kroah-Hartman
Cc: linux-doc@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Co-authored-by: Peter Zijlstra
Signed-off-by: Thomas Hellstrom
Acked-by: Peter Zijlstra (Intel)
Acked-by: Ingo Molnar
02 Jul, 2018
2 commits
-
When this was introduced in
commit a519435a96597d8cd96123246fea4ae5a6c90b02
Author: Christian König
Date: Tue Oct 20 16:34:16 2015 +0200dma-buf/fence: add fence_wait_any_timeout function v2
there was a restriction added that this only works if the dma-fence
uses the dma_fence_default_wait hook. Which works for amdgpu, which is
the only caller. Well, until you share some buffers with e.g. i915,
then you get an -EINVAL.But there's really no reason for this, because all drivers must
support callbacks. The special ->wait hook is only as an optimization;
if the driver needs to create a worker thread for an active callback,
then it can avoid to do that if it knows that there's a process
context available already. So ->wait is just an optimization, just
using the logic in dma_fence_default_wait() should work for all
drivers.Let's remove this restriction.
Reviewed-by: Christian König
Signed-off-by: Daniel Vetter
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: Christian König
Cc: Alex Deucher
Link: https://patchwork.freedesktop.org/patch/msgid/20180503142603.28513-4-daniel.vetter@ffwll.ch -
Many drivers have a trivial implementation for ->enable_signaling.
Let's make it optional by assuming that signalling is already
available when the callback isn't present.v2: Don't do the trick to set the ENABLE_SIGNAL_BIT
unconditionally, it results in an expensive spinlock take for
everyone. Instead just check if the callback is present. Suggested by
Maarten.Also move misplaced kerneldoc hunk to the right patch.
Cc: Maarten Lankhorst
Reviewed-by: Christian König (v1)
Reviewed-by: Maarten Lankhorst
Signed-off-by: Daniel Vetter
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180504141034.27727-1-daniel.vetter@ffwll.ch
20 Jun, 2018
2 commits
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Neither used nor correctly implemented anywhere. Just completely remove
the interface.Signed-off-by: Christian König
Reviewed-by: Daniel Vetter
Acked-by: Sumit Semwal
Link: https://patchwork.freedesktop.org/patch/226645/ -
The device parameter is completely unused because it is available in the
attachment structure as well.v2: fix kerneldoc as well
Signed-off-by: Christian König
Reviewed-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/226643/
01 Jun, 2018
1 commit
-
So drivers don't need dummy functions just returning NULL.
Cc: Daniel Vetter
Signed-off-by: Gerd Hoffmann
Reviewed-by: Daniel Vetter
Reviewed-by: Oleksandr Andrushchenko
Link: http://patchwork.freedesktop.org/patch/msgid/20180529135918.19729-1-kraxel@redhat.com
07 May, 2018
1 commit
-
The sync_debug.h header is internal, and only used by
sw_sync.c. Therefore, SW_SYNC is always defined and there
is no need for the stubs. Remove them and make the code
simpler.Signed-off-by: Ezequiel Garcia
Signed-off-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20180504180037.10661-1-ezequiel@collabora.com
03 May, 2018
4 commits
-
I shouldn't have pushed this, CI was right - I failed to remove the
BUG_ON(!ops->wait);Reported-by: Chris Wilson
Acked-by: Chris Wilson
Signed-off-by: Daniel Vetter -
Almost everyone uses dma_fence_default_wait.
Reviewed-by: Christian König
Signed-off-by: Daniel Vetter
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180427061724.28497-6-daniel.vetter@ffwll.ch -
When this was introduced in
commit a519435a96597d8cd96123246fea4ae5a6c90b02
Author: Christian König
Date: Tue Oct 20 16:34:16 2015 +0200dma-buf/fence: add fence_wait_any_timeout function v2
there was a restriction added that this only works if the dma-fence
uses the dma_fence_default_wait hook. Which works for amdgpu, which is
the only caller. Well, until you share some buffers with e.g. i915,
then you get an -EINVAL.But there's really no reason for this, because all drivers must
support callbacks. The special ->wait hook is only as an optimization;
if the driver needs to create a worker thread for an active callback,
then it can avoid to do that if it knows that there's a process
context available already. So ->wait is just an optimization, just
using the logic in dma_fence_default_wait() should work for all
drivers.Let's remove this restriction.
Signed-off-by: Daniel Vetter
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: Christian König
Cc: Alex Deucher
Reviewed-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20180427061724.28497-5-daniel.vetter@ffwll.ch -
Many drivers have a trivial implementation for ->enable_signaling.
Let's make it optional by assuming that signalling is already
available when the callback isn't present.Signed-off-by: Daniel Vetter
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Reviewed-by: Christian König
Link: https://patchwork.freedesktop.org/patch/msgid/20180427061724.28497-4-daniel.vetter@ffwll.ch
19 Feb, 2018
1 commit
-
drivers/dma-buf/sw_sync.c:248: warning: No description found for parameter 'obj'
drivers/dma-buf/sw_sync.c:248: warning: No description found for parameter 'value'
drivers/dma-buf/sw_sync.c:248: warning: Excess function parameter 'parent' description in 'sync_pt_create'
drivers/dma-buf/sw_sync.c:248: warning: Excess function parameter 'inc' description in 'sync_pt_create'Signed-off-by: Chris Wilson
Signed-off-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/20180208113816.8288-1-chris@chris-wilson.co.uk
16 Feb, 2018
1 commit
-
drm-misc-next for 4.17:
UAPI Changes:
- drm/vc4: Expose performance counters to userspace (Boris)Cross-subsystem Changes:
- MAINTAINERS: Linus to maintain panel-arm-versatile in -misc (Linus)Core Changes:
- Only use swiotlb when necessary (Chunming)Driver Changes:
- drm/panel: Add support for ARM Versatile panels (Linus)
- pl111: Improvements around versatile panel support (Linus)----------------------------------------
Tagged on 2018-02-06:
drm-misc-next for 4.17:UAPI Changes:
- Validate mode flags + type (Ville)
- Deprecate unused mode flags PIXMUX, BCAST (Ville)
- Deprecate unused mode types BUILTIN, CRTC_C, CLOCK_C, DEFAULT (Ville)Cross-subsystem Changes:
- MAINTAINERS: s/Daniel/Maarten/ for drm-misc (Daniel)Core Changes:
- gem: Export gem functions for drivers to use (Samuel)
- bridge: Introduce bridge timings in drm_bridge (Linus)
- dma-buf: Allow exclusive fence to be bundled in fence array when
calling reservation_object_get_fences_rcu (Christian)
- dp: Add training pattern 4 and HBR3 support to dp helpers (Manasi)
- fourcc: Add alpha bit to formats to avoid driver format LUTs (Maxime)
- mode: Various cleanups + add new device-wide .mode_valid hook (Ville)
- atomic: Fix state leak when non-blocking commits fail (Leo)
NOTE: IIRC, this was cross-picked to -fixes so it might fall out
- crc: Allow polling on the data fd (Maarten)Driver Changes:
- bridge/vga-dac: Add THS8134* support (Linus)
- tinydrm: Various MIPI DBI improvements/cleanups (Noralf)
- bridge/dw-mipi-dsi: Cleanups + use create_packet helper (Brian)
- drm/sun4i: Add Display Engine frontend support (Maxime)
- drm/sun4i: Add zpos support + increase num planes from 2 to 4 (Maxime)
- various: Use drm_mode_get_hv_timing() to fill plane clip rectangle (Ville)
- stm: Add 8-bit clut support, add dsi phy v1.31 support, +fixes (Phillipe)Cc: Boris Brezillon
Cc: Chunming Zhou
Cc: Samuel Li
Cc: Linus Walleij
Cc: Noralf Trønnes
Cc: Brian Norris
Cc: Maxime Ripard
Cc: Ville Syrjala
Cc: Christian König
Cc: Manasi Navare
Cc: Philippe Cornu
Cc: Leo (Sunpeng) Li
Cc: Daniel Vetter
Cc: Maarten Lankhorst* tag 'drm-misc-next-2018-02-13' of git://anongit.freedesktop.org/drm/drm-misc: (115 commits)
drm/radeon: only enable swiotlb path when need v2
drm/amdgpu: only enable swiotlb alloc when need v2
drm: add func to get max iomem address v2
drm/vc4: Expose performance counters to userspace
drm: Print the pid when debug logging an ioctl error.
drm/stm: ltdc: remove non-alpha color formats on layer 2 for older hw
drm/stm: ltdc: add non-alpha color formats
drm/bridge/synopsys: dsi: Add 1.31 version support
drm/bridge/synopsys: dsi: Add read feature
drm/pl111: Support multiple endpoints on the CLCD
drm/pl111: Support variants with broken VBLANK
drm/pl111: Support variants with broken clock divider
drm/pl111: Handle the Versatile RGB/BGR565 mode
drm/pl111: Properly detect the ARM PL110 variants
drm/panel: Add support for ARM Versatile panels
drm/panel: Device tree bindings for ARM Versatile panels
drm/bridge: Rename argument from crtc to bridge
drm/crc: Add support for polling on the data fd.
drm/sun4i: Use drm_mode_get_hv_timing() to populate plane clip rectangle
drm/rcar-du: Use drm_mode_get_hv_timing() to populate plane clip rectangle
...
12 Feb, 2018
1 commit
-
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
for f in $L; do sed -i "-es/^\([^\"]*\)\(\\)/\\1E\\2/" $f; done
donewith de-mangling cleanups yet to come.
NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do. But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.The next patch from Al will sort out the final differences, and we
should be all done.Scripted-by: Al Viro
Signed-off-by: Linus Torvalds
02 Feb, 2018
1 commit
-
Pull drm updates from Dave Airlie:
"This seems to have been a comparatively quieter merge window, I assume
due to holidays etc. The "biggest" change is AMD header cleanups, which
merge/remove a bunch of them. The AMD gpu scheduler is now being made generic
with the etnaviv driver wanting to reuse the code, hopefully other drivers
can go in the same direction.Otherwise it's the usual lots of stuff in i915/amdgpu, not so much stuff
elsewhere.Core:
- Add .last_close and .output_poll_changed helpers to reduce driver footprints
- Fix plane clipping
- Improved debug printing support
- Add panel orientation property
- Update edid derived properties at edid setting
- Reduction in fbdev driver footprint
- Move amdgpu scheduler into core for other drivers to use.i915:
- Selftest and IGT improvements
- Fast boot prep work on IPS, pipe config
- HW workarounds for Cannonlake, Geminilake
- Cannonlake clock and HDMI2.0 fixes
- GPU cache invalidation and context switch improvements
- Display planes cleanup
- New PMU interface for perf queries
- New firmware support for KBL/SKL
- Geminilake HW workaround for perforamce
- Coffeelake stolen memory improvements
- GPU reset robustness work
- Cannonlake horizontal plane flipping
- GVT workamdgpu/radeon:
- RV and Vega header file cleanups (lots of lines gone!)
- TTM operation context support
- 48-bit GPUVM support for Vega/RV
- ECC support for Vega
- Resizeable BAR support
- Multi-display sync support
- Enable swapout for reserved BOs during allocation
- S3 fixes on Raven
- GPU reset cleanup and fixes
- 2+1 level GPU page tableamdkfd:
- GFX7/8 SDMA user queues support
- Hardware scheduling for multiple processes
- dGPU prep workrcar:
- Added R8A7743/5 support
- System suspend/resume supportsun4i:
- Multi-plane support for YUV formats
- A83T and LVDS supportmsm:
- Devfreq support for GPUtegra:
- Prep work for adding Tegra186 support
- Tegra186 HDMI support
- HDMI2.0 and zpos support by using generic helperstilcdc:
- Misc fixesomapdrm:
- Support memory bandwidth limits
- DSI command mode panel cleanups
- DMM error handlingexynos:
- drop the old IPP subdriver.etnaviv:
- Occlusion query fixes
- Job handling fixes
- Prep work for hooking in gpu schedulerarmada:
- Move closer to atomic modesetting
- Allow disabling primary plane if overlay is full screenimx:
- Format modifier support
- Add tile prefetch to PRE
- Runtime PM support for PRGast:
- fix LUT loading"* tag 'drm-for-v4.16' of git://people.freedesktop.org/~airlied/linux: (1471 commits)
drm/ast: Load lut in crtc_commit
drm: Check for lessee in DROP_MASTER ioctl
drm: fix gpu scheduler link order
drm/amd/display: Demote error print to debug print when ATOM impl missing
dma-buf: fix reservation_object_wait_timeout_rcu once more v2
drm/amdgpu: Avoid leaking PM domain on driver unbind (v2)
drm/amd/amdgpu: Add Polaris version check
drm/amdgpu: Reenable manual GPU reset from sysfs
drm/amdgpu: disable MMHUB power gating on raven
drm/ttm: Don't unreserve swapped BOs that were previously reserved
drm/ttm: Don't add swapped BOs to swap-LRU list
drm/amdgpu: only check for ECC on Vega10
drm/amd/powerplay: Fix smu_table_entry.handle type
drm/ttm: add VADDR_FLAG_UPDATED_COUNT to correctly update dma_page global count
drm: Fix PANEL_ORIENTATION_QUIRKS breaking the Kconfig DRM menuconfig
drm/radeon: fill in rb backend map on evergreen/ni.
drm/amdgpu/gfx9: fix ngg enablement to clear gds reserved memory (v2)
drm/ttm: only free pages rather than update global memory count together
drm/amdgpu: fix CPU based VM updates
drm/amdgpu: fix typo in amdgpu_vce_validate_bo
...
31 Jan, 2018
1 commit
-
The structure should really be sw_sync_create_fence_data rather than
sw_sync_ioctl_create_fence which is the function name.Signed-off-by: Shawn Guo
Signed-off-by: Daniel Vetter
Link: https://patchwork.freedesktop.org/patch/msgid/1515988079-8677-1-git-send-email-shawn.guo@linaro.org
29 Jan, 2018
1 commit
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In dma_fence_release() there is a WARN_ON which could be triggered by
several cases of wrong dma-fence usage. This patch adds a comment to
explain two use-cases to help driver developers that use dma-fence
and trigger that WARN_ON to better understand the reasons for it.v2: change to a more generic, one-liner comment
Reviewed-by: Daniel Vetter
Signed-off-by: Oded Gabbay
24 Jan, 2018
1 commit
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Change reservation_object_get_fences_rcu to make the exclusive fence
pointer optional.If not specified the exclusive fence is put into the fence array as
well.This is helpful for a couple of cases where we need all fences in a
single array.Reviewed-by: Chunming Zhou
Acked-by: Daniel Vetter
Signed-off-by: Christian König
Signed-off-by: Alex Deucher
Link: https://patchwork.freedesktop.org/patch/msgid/20180110125341.3618-1-christian.koenig@amd.com
23 Jan, 2018
1 commit
-
We need to set shared_count even if we already have a fence to wait for.
v2: init i to -1 as well
Signed-off-by: Christian König
Cc: stable@vger.kernel.org
Tested-by: Lyude Paul
Reviewed-by: Lyude Paul
Reviewed-by: Chris Wilson
Signed-off-by: Alex Deucher
Link: https://patchwork.freedesktop.org/patch/msgid/20180122200003.6665-1-christian.koenig@amd.com
04 Dec, 2017
1 commit
-
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
...
29 Nov, 2017
1 commit
-
Signed-off-by: Al Viro
28 Nov, 2017
1 commit
-
Only POLL... bitmaps ever end up there and their only use is checking
for POLL... bits in them.Signed-off-by: Al Viro
23 Nov, 2017
1 commit
-
NULL check before some freeing functions is not needed.
drivers/dma-buf/dma-buf.c:1183:2-26: WARNING: NULL check before freeing debugfs_remove_recursive
Generated by: scripts/coccinelle/free/ifnullfree.cocciSigned-off-by: Vasyl Gomonovych
Signed-off-by: Sumit Semwal
Link: https://patchwork.freedesktop.org/patch/msgid/1511364161-6074-1-git-send-email-gomonovych@gmail.com
22 Nov, 2017
1 commit
-
Ages ago Rob Clark noted,
"Currently with fence-array, we have a potential deadlock situation. If
we fence_add_callback() on an array-fence, the array-fence's lock is
acquired first, and in it's ->enable_signaling() callback, it will install
cbs on it's array-member fences, so the array-member's lock is acquired
second.But in the signal path, the array-member's lock is acquired first, and
the array-fence's lock acquired second."Rob proposed either extensive changes to dma-fence to unnest the
fence-array signaling, or to defer the signaling onto a workqueue. This
is a more refined version of the later, that should keep the latency
of the fence signaling to a minimum by using an irq-work, which is
executed asap.Reported-by: Rob Clark
Suggested-by: Rob Clark
References: 1476635975-21981-1-git-send-email-robdclark@gmail.com
Signed-off-by: Chris Wilson
Cc: Rob Clark
Cc: Gustavo Padovan
Cc: Sumit Semwal
Cc: Christian König
Reviewed-by: Christian König
Signed-off-by: Sumit Semwal
Link: https://patchwork.freedesktop.org/patch/msgid/20171114162719.30958-1-chris@chris-wilson.co.uk
21 Nov, 2017
1 commit
-
Bake in the conflict between the drm_print.h extraction and the
addition of DRM_DEBUG_LEASES since we lost it a few too many times.Also fix a new use of drm_plane_helper_check_state in msm to follow
Ville's conversion incommit a01cb8ba3f6282934cff65e89ab36b18b14cbe27
Author: Ville Syrjälä
Date: Wed Nov 1 22:16:19 2017 +0200drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
Acked-by: Ville Syrjälä
Signed-off-by: Daniel Vetter
18 Nov, 2017
1 commit
-
Pull tracing updates from
- allow module init functions to be traced
- clean up some unused or not used by config events (saves space)
- clean up of trace histogram code
- add support for preempt and interrupt enabled/disable events
- other various clean ups
* tag 'trace-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (30 commits)
tracing, thermal: Hide cpu cooling trace events when not in use
tracing, thermal: Hide devfreq trace events when not in use
ftrace: Kill FTRACE_OPS_FL_PER_CPU
perf/ftrace: Small cleanup
perf/ftrace: Fix function trace events
perf/ftrace: Revert ("perf/ftrace: Fix double traces of perf on ftrace:function")
tracing, dma-buf: Remove unused trace event dma_fence_annotate_wait_on
tracing, memcg, vmscan: Hide trace events when not in use
tracing/xen: Hide events that are not used when X86_PAE is not defined
tracing: mark trace_test_buffer as __maybe_unused
printk: Remove superfluous memory barriers from printk_safe
ftrace: Clear hashes of stale ips of init memory
tracing: Add support for preempt and irq enable/disable events
tracing: Prepare to add preempt and irq trace events
ftrace/kallsyms: Have /proc/kallsyms show saved mod init functions
ftrace: Add freeing algorithm to free ftrace_mod_maps
ftrace: Save module init functions kallsyms symbols for tracing
ftrace: Allow module init functions to be traced
ftrace: Add a ftrace_free_mem() function for modules to use
tracing: Reimplement log2
...
16 Nov, 2017
1 commit
-
Pull drm updates from Dave Airlie:
"This is the main drm pull request for v4.15.Core:
- Atomic object lifetime fixes
- Atomic iterator improvements
- Sparse/smatch fixes
- Legacy kms ioctls to be interruptible
- EDID override improvements
- fb/gem helper cleanups
- Simple outreachy patches
- Documentation improvements
- Fix dma-buf rcu races
- DRM mode object leasing for improving VR use cases.
- vgaarb improvements for non-x86 platforms.New driver:
- tve200: Faraday Technology TVE200 block.This "TV Encoder" encodes a ITU-T BT.656 stream and can be found in
the StorLink SL3516 (later Cortina Systems CS3516) as well as the
Grain Media GM8180.New bridges:
- SiI9234 supportNew panels:
- S6E63J0X03, OTM8009A, Seiko 43WVF1G, 7" rpi touch panel, Toshiba
LT089AC19000, Innolux AT043TN24i915:
- Remove Coffeelake from alpha support
- Cannonlake workarounds
- Infoframe refactoring for DisplayPort
- VBT updates
- DisplayPort vswing/emph/buffer translation refactoring
- CCS fixes
- Restore GPU clock boost on missed vblanks
- Scatter list updates for userptr allocations
- Gen9+ transition watermarks
- Display IPC (Isochronous Priority Control)
- Private PAT management
- GVT: improved error handling and pci config sanitizing
- Execlist refactoring
- Transparent Huge Page support
- User defined priorities support
- HuC/GuC firmware refactoring
- DP MST fixes
- eDP power sequencing fixes
- Use RCU instead of stop_machine
- PSR state tracking support
- Eviction fixes
- BDW DP aux channel timeout fixes
- LSPCON fixes
- Cannonlake PLL fixesamdgpu:
- Per VM BO support
- Powerplay cleanups
- CI powerplay support
- PASID mgr for kfd
- SR-IOV fixes
- initial GPU reset for vega10
- Prime mmap support
- TTM updates
- Clock query interface for Raven
- Fence to handle ioctl
- UVD encode ring support on Polaris
- Transparent huge page DMA support
- Compute LRU pipe tweaks
- BO flag to allow buffers to opt out of implicit sync
- CTX priority setting API
- VRAM lost infrastructure plumbingqxl:
- fix flicker since atomic reworkamdkfd:
- Further improvements from internal AMD tree
- Usermode events
- Drop radeon supportnouveau:
- Pascal temperature sensor support
- Improved BAR2 handling
- MMU rework to support Pascal MMUexynos:
- Improved HDMI/mixer support
- HDMI audio interface supporttegra:
- Prep work for tegra186
- Cleanup/fixesmsm:
- Preemption support for a5xx
- Display fixes for 8x96 (snapdragon 820)
- Async cursor plane fixes
- FW loading rework
- GPU debugging improvementsvc4:
- Prep for DSI panels
- fix T-format tiling scanout
- New madvise ioctlRockchip:
- LVDS supportomapdrm:
- omap4 HDMI CEC supportetnaviv:
- GPU performance counters groundworksun4i:
- refactor driver load + TCON backend
- HDMI improvements
- A31 support
- Misc fixesudl:
- Probe/EDID read fixes.tilcdc:
- Misc fixes.pl111:
- Support more variantsadv7511:
- Improve EDID handling.
- HDMI CEC supportsii8620:
- Add remote control support"* tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux: (1480 commits)
drm/rockchip: analogix_dp: Use mutex rather than spinlock
drm/mode_object: fix documentation for object lookups.
drm/i915: Reorder context-close to avoid calling i915_vma_close() under RCU
drm/i915: Move init_clock_gating() back to where it was
drm/i915: Prune the reservation shared fence array
drm/i915: Idle the GPU before shinking everything
drm/i915: Lock llist_del_first() vs llist_del_all()
drm/i915: Calculate ironlake intermediate watermarks correctly, v2.
drm/i915: Disable lazy PPGTT page table optimization for vGPU
drm/i915/execlists: Remove the priority "optimisation"
drm/i915: Filter out spurious execlists context-switch interrupts
drm/amdgpu: use irq-safe lock for kiq->ring_lock
drm/amdgpu: bypass lru touch for KIQ ring submission
drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories()
drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs()
drm/amd/powerplay: initialize a variable before using it
drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels
drm/amd/amdgpu: fix evicted VRAM bo adjudgement condition
drm/vblank: Tune drm_crtc_accurate_vblank_count() WARN down to a debug
drm/rockchip: add CONFIG_OF dependency for lvds
...
15 Nov, 2017
2 commits
-
The amdgpu issue to also need signaled fences in the reservation objects should
be fixed by now.Optimize the handling by replacing a signaled fence when adding a new
shared one.Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Signed-off-by: Alex Deucher
Link: https://patchwork.freedesktop.org/patch/msgid/20171114142436.1360-2-christian.koenig@amd.com -
The amdgpu issue to also need signaled fences in the reservation objects
should be fixed by now.Optimize the list by keeping only the not signaled yet fences around.
v2: temporary put the signaled fences at the end of the new container
v3: put the old fence at the end of the new container as well.Signed-off-by: Christian König
Reviewed-by: Chris Wilson
Tested-by: Chris Wilson
Signed-off-by: Alex Deucher
Link: https://patchwork.freedesktop.org/patch/msgid/20171114142436.1360-1-christian.koenig@amd.com
10 Nov, 2017
1 commit
-
Use rcu_assign_pointer() when setting an rcu protected pointer.
This gets rid of another sparse warning.Cc: Dave Airlie
Cc: Jason Ekstrand
Cc: linaro-mm-sig@lists.linaro.org
Cc: linux-media@vger.kernel.org
Cc: Alex Deucher
Cc: Christian König
Cc: Sumit Semwal
Cc: Chris Wilson
Signed-off-by: Ville Syrjälä
Link: https://patchwork.freedesktop.org/patch/msgid/20171102200336.23347-5-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter
Reviewed-by: Christian König .
Acked-by: Sumit Semwal
02 Nov, 2017
3 commits
-
Mappings need to be unmapped by calling dma_buf_unmap_attachment() and
not by calling again dma_buf_map_attachment(). Also fix some spelling
mistakes.Signed-off-by: Liviu Dudau
Reviewed-by: Alex Deucher
Reviewed-by: Christian König
Signed-off-by: Gustavo Padovan
Link: https://patchwork.freedesktop.org/patch/msgid/20171101140630.2884-1-Liviu.Dudau@arm.com -
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman -
Linux 4.14-rc7
Requested by Ben Skeggs for nouveau to avoid major conflicts,
and things were getting a bit conflicty already, esp around amdgpu
reverts.
17 Oct, 2017
1 commit
-
Commit e941759c74 ("fence: dma-buf cross-device synchronization") added
trace event fence_annotate_wait_on, but never used it. It was renamed
to dma_fence_annotate_wait_on by commit f54d186700 ("dma-buf: Rename
struct fence to dma_fence") but still not used. As defined trace events
have data structures and functions created for them, it is a waste of
memory if they are not used. Remove the unused trace event.Link: http://lkml.kernel.org/r/20171013100625.6c820059@gandalf.local.home
Reviewed-by: Christian König
Acked-by: Sumit Semwal
Signed-off-by: Steven Rostedt (VMware)
10 Oct, 2017
1 commit
-
sync_file_ioctl_fence_info has a race between filling the status
of the underlying fences and the overall status of the sync_file.
If fence transitions in the time frame between its sync_fill_fence_info
and the later dma_fence_is_signaled for the sync_file, the returned
information is inconsistent showing non-signaled underlying fences but
an overall signaled state.This patch changes sync_file_ioctl_fence_info to track what has been
encoded and using that as the overall sync_file status.Tested-by: Vamsidhar Reddy Gaddam
Signed-off-by: John Einar Reitan
Cc: Sumit Semwal
Cc: Gustavo Padovan
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Chris Wilson
Signed-off-by: Gustavo Padovan
Link: https://patchwork.freedesktop.org/patch/msgid/20171009134936.27219-1-john.reitan@arm.com
