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linux/drivers/gpu/drm
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Steven Price 5b3ec8134f drm/panfrost: Handle resetting on timeout better 
Panfrost uses multiple schedulers (one for each slot, so 2 in reality),
and on a timeout has to stop all the schedulers to safely perform a
reset. However more than one scheduler can trigger a timeout at the same
time. This race condition results in jobs being freed while they are
still in use.

When stopping other slots use cancel_delayed_work_sync() to ensure that
any timeout started for that slot has completed. Also use
mutex_trylock() to obtain reset_lock. This means that only one thread
attempts the reset, the other threads will simply complete without doing
anything (the first thread will wait for this in the call to
cancel_delayed_work_sync()).

While we're here and since the function is already dependent on
sched_job not being NULL, let's remove the unnecessary checks.

Fixes: aa20236784ab ("drm/panfrost: Prevent concurrent resets")
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009094456.9704-1-steven.price@arm.com
2019-10-15 11:38:22 -05:00
..
amd
drm fixes for 5.4-rc1
2019-09-27 11:13:35 -07:00
arc
drm/arc: Drop drm_gem_prime_export/import
2019-06-21 20:02:10 +02:00
arm
Merge drm/drm-fixes into drm-misc-fixes
2019-10-03 09:59:29 +02:00
armada
drm/armada: drop use of drmP.h
2019-08-14 18:31:10 +02:00
aspeed
drm/aspeed: gfc_crtc: Make structure aspeed_gfx_funcs constant
2019-08-14 19:27:26 +02:00
ast
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
atmel-hlcdc
Linus 5.3-rc1
2019-07-22 21:24:10 +02:00
bochs
drm/bochs: Use dev_get_drvdata
2019-08-06 09:20:58 +02:00
bridge
drm/bridge: tc358767: fix max_tu_symbol value
2019-10-10 11:15:45 +02:00
cirrus
drm/prime: Actually remove DRIVER_PRIME everywhere
2019-06-21 17:30:32 +02:00
etnaviv
drm/etnaviv: fix missing unlock on error in etnaviv_iommuv1_context_alloc()
2019-09-02 12:48:55 +02:00
exynos
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
fsl-dcu
drm/fsl-dcu: fix opencoded use of drm_panel_*
2019-08-10 15:41:48 +02:00
gma500
Linux 5.2-rc5
2019-06-19 12:07:29 +02:00
hisilicon
drm-misc-next for 5.4:
2019-08-27 17:21:04 +10:00
i2c
drm/i2c/tda998x: drop use of drmP.h
2019-08-14 18:30:52 +02:00
i810
drm/i810: drop use of drmP.h
2019-07-17 12:52:55 +02:00
i915
Kbuild updates for v5.4
2019-09-20 08:36:47 -07:00
imx
drm/imx: IPUv3 image converter fixes and improvements
2019-08-27 16:52:12 +10:00
ingenic
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
lib
…
lima
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
mcde
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
mediatek
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
meson
drm: meson: use match data to detect vpu compatibility
2019-08-22 17:54:05 +02:00
mga
drm/mga: drop use of drmP.h
2019-06-30 09:48:05 +02:00
mgag200
drm/mgag200: Provide ddc symlink in connector sysfs directory
2019-07-31 16:33:09 +02:00
msm
drm/msm/dsi: Implement reset correctly
2019-10-11 14:04:31 -04:00
mxsfb
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
nouveau
drm fixes for 5.4-rc1
2019-09-27 11:13:35 -07:00
omapdrm
Merge drm/drm-fixes into drm-misc-fixes
2019-10-03 09:59:29 +02:00
panel
drm/panel: tpo-td043mtea1: Fix SPI alias
2019-10-08 08:02:20 +03:00
panfrost
drm/panfrost: Handle resetting on timeout better
2019-10-15 11:38:22 -05:00
pl111
drm/pl111: Support grayscale
2019-08-09 09:15:05 +02:00
qxl
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
r128
drm/r128: drop use of drmP.h
2019-07-17 12:52:55 +02:00
radeon
drm fixes for 5.4-rc1
2019-09-27 11:13:35 -07:00
rcar-du
Merge drm/drm-fixes into drm-misc-fixes
2019-10-03 09:59:29 +02:00
rockchip
drm fixes for 5.4-rc1
2019-09-27 11:13:35 -07:00
savage
drm/savage: drop use of drmP.h
2019-06-05 20:31:04 +02:00
scheduler
drm/scheduler: use job count instead of peek
2019-08-15 10:52:10 -05:00
selftests
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
shmobile
drm/shmobile: drop use of drmP.h
2019-07-15 18:11:31 +02:00
sis
drm/sis: drop drmP.h use
2019-06-05 20:29:57 +02:00
sti
drm/sti: fix opencoded use of drm_panel_*
2019-08-07 13:54:17 +02:00
stm
drm/stm: attach gem fence to atomic state
2019-07-25 12:00:09 +02:00
sun4i
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
tdfx
drm/tdfx: drop use of drmP.h
2019-07-17 12:52:55 +02:00
tegra
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
tilcdc
drm/tilcdc: include linux/pinctrl/consumer.h again
2019-09-30 19:24:47 +03:00
tiny
drm/tiny: Kconfig: Remove always-y THERMAL dep. from TINYDRM_REPAPER
2019-10-10 15:15:51 +02:00
ttm
drm/ttm: fix handling in ttm_bo_add_mem_to_lru
2019-10-14 13:21:15 +02:00
tve200
drm/tve200: drop use of drmP.h
2019-07-15 18:11:30 +02:00
udl
drm/udl: drop use of drmP.h
2019-07-17 12:52:55 +02:00
v3d
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
vboxvideo
drm/vboxvideo: Make structure vbox_fb_helper_funcs constant
2019-08-18 12:52:52 +02:00
vc4
Merge drm/drm-fixes into drm-misc-fixes
2019-10-03 09:59:29 +02:00
vgem
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
via
drivers/gpu/drm/via: convert put_page() to put_user_page*()
2019-09-24 15:54:08 -07:00
virtio
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
vkms
drm/vkms: drop use of drmP.h
2019-07-15 18:11:30 +02:00
vmwgfx
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
xen
drm/xen-front: Make structure fb_funcs constant
2019-08-19 08:32:52 +03:00
zte
Linus 5.3-rc1
2019-07-22 21:24:10 +02:00
ati_pcigart.c
drm/ati_pcigart: drop dependency on drm_os_linux.h
2019-07-19 23:24:16 +02:00
drm_agpsupport.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_atomic_helper.c
drm: Measure Self Refresh Entry/Exit times to avoid thrashing
2019-09-19 10:03:32 -04:00
drm_atomic_state_helper.c
drm/atomic: Rename crtc_state->pageflip_flags to async_flip
2019-09-18 18:43:36 +02:00
drm_atomic_uapi.c
drm/atomic: Reject FLIP_ASYNC unconditionally
2019-09-18 18:42:57 +02:00
drm_atomic.c
drm: Free the writeback_job when it with an empty fb
2019-09-23 15:31:53 +08:00
drm_auth.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_blend.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_bridge.c
drm: Add atomic variants for bridge enable/disable
2019-06-13 13:00:29 -04:00
drm_bufs.c
drm main pull request for v5.3-rc1 (sans mm changes)
2019-07-15 19:04:27 -07:00
drm_cache.c
…
drm_client_modeset.c
drm/modes: Don't apply cmdline's rotation if it wasn't specified
2019-07-16 10:34:38 +02:00
drm_client.c
drm/fb-helper: Map DRM client buffer only when required
2019-08-01 15:01:29 +02:00
drm_color_mgmt.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_connector.c
drm: Fix kerneldoc warns in connector-related docs
2019-08-12 10:16:39 -04:00
drm_context.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
drm: Remove bridge support from legacy helpers
2019-08-16 15:50:27 +03:00
drm_crtc_internal.h
drm/atomic: Move __drm_atomic_helper_disable_plane/set_config()
2019-06-08 16:46:37 +02:00
drm_crtc.c
drm: no need to check return value of debugfs_create functions
2019-06-13 16:39:16 +02:00
drm_damage_helper.c
drm/damage-helper: Use NULL instead of 0
2019-05-28 09:03:06 +02:00
drm_debugfs_crc.c
drm/crc-debugfs: Add notes about CRC<->commit interactions
2019-08-06 18:27:53 +01:00
drm_debugfs.c
drm: debugfs: make drm_debugfs_create_files() never fail
2019-06-14 16:59:51 +02:00
drm_dma.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_dp_aux_dev.c
drm/dp_mst: Enable registration of AUX devices for MST ports
2019-07-25 16:39:35 -04:00
drm_dp_cec.c
…
drm_dp_dual_mode_helper.c
drm/dp: drmP.h include removal
2019-05-06 16:00:48 +03:00
drm_dp_helper.c
drm: Make the bw/link rate calculations more forgiving
2019-07-17 12:45:30 -04:00
drm_dp_mst_topology.c
drm/mst: Fix sphinx warnings in drm_dp_msg_connector register functions
2019-07-26 14:48:03 -04:00
drm_drv.c
drm/kms: Duct-tape for mode object lifetime checks
2019-09-18 11:27:18 +02:00
drm_dsc.c
drm/dsc: Split DSC PPS and SDP header initialisations
2019-03-05 13:24:34 -05:00
drm_dumb_buffers.c
Revert "drm/gem: Rename drm_gem_dumb_map_offset() to drm_gem_map_offset()"
2019-08-07 11:56:48 -04:00
drm_edid_load.c
Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
2019-05-28 09:39:08 +02:00
drm_edid.c
drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50
2019-10-10 09:06:54 -05:00
drm_encoder_slave.c
…
drm_encoder.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_fb_cma_helper.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
drm_fb_helper.c
drm/fb-helper: Instanciate shadow FB if configured in device's mode_config
2019-08-01 15:01:35 +02:00
drm_file.c
drm/prime: Unconditionally set up the prime file private
2019-06-21 11:48:09 +02:00
drm_flip_work.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_format_helper.c
drm: Remove users of drm_format_info_plane_cpp
2019-05-20 13:35:56 +02:00
drm_fourcc.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_framebuffer.c
drm: silence variable 'conn' set but not used
2019-07-22 16:04:53 -04:00
drm_gem_cma_helper.c
Linux 5.2-rc5
2019-06-19 12:07:29 +02:00
drm_gem_framebuffer_helper.c
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
drm_gem_shmem_helper.c
drm/shmem: Use mutex_trylock in drm_gem_shmem_purge
2019-08-28 10:02:39 -05:00
drm_gem_vram_helper.c
drm/ttm: use gem vma_node
2019-08-06 08:21:54 +02:00
drm_gem.c
dma-buf: rename reservation_object to dma_resv
2019-08-13 09:09:30 +02:00
drm_hashtab.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_hdcp.c
drm/hdcp: reference for srm file format
2019-08-06 13:18:42 +05:30
drm_internal.h
drm/gem: Unexport drm_gem_(un)pin/v(un)map
2019-06-17 17:37:01 +02:00
drm_ioc32.c
Linus 5.3-rc1
2019-07-22 21:24:10 +02:00
drm_ioctl.c
drm/atomic: Take the atomic toys away from X
2019-09-18 18:42:21 +02:00
drm_irq.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_kms_helper_common.c
drm: fix module name in edid_firmware log message
2019-08-22 10:41:06 +03:00
drm_lease.c
Linux 5.2-rc5
2019-06-19 12:07:29 +02:00
drm_legacy_misc.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_legacy.h
drm: make drm_legacy.h self-contained
2019-05-27 18:06:47 +02:00
drm_lock.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_memory.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_mipi_dbi.c
drm/tinydrm: Move mipi-dbi
2019-07-25 10:45:07 +02:00
drm_mipi_dsi.c
drivers: Introduce device lookup variants by of_node
2019-07-30 13:07:41 +02:00
drm_mm.c
drm: Allow range of 0 for drm_mm_insert_node_in_range()
2019-06-26 21:13:12 +01:00
drm_mode_config.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_mode_object.c
drm/kms: Duct-tape for mode object lifetime checks
2019-09-18 11:27:18 +02:00
drm_modes.c
drm main pull for 5.4-rc1
2019-09-19 16:24:24 -07:00
drm_modeset_helper.c
drm: prepare for drmP.h removal from drm_modeset_helper.h
2019-02-07 21:48:28 +01:00
drm_modeset_lock.c
docs conversion for v5.3-rc1
2019-07-16 12:21:41 -07:00
drm_of.c
Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
2019-05-28 09:39:08 +02:00
drm_panel_orientation_quirks.c
drm: panel-orientation-quirks: Add extra quirk table entry for GPD MicroPC
2019-07-01 16:58:09 +02:00
drm_panel.c
drm/panel: drop return code from drm_panel_detach()
2019-08-10 15:41:48 +02:00
drm_pci.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_plane_helper.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_plane.c
drm/lease: Make sure implicit planes are leased
2019-04-24 11:30:32 +02:00
drm_prime.c
drm/prime: Ditch gem_prime_res_obj hook
2019-07-31 10:19:23 +02:00
drm_print.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_probe_helper.c
Linux 5.2-rc5
2019-06-19 12:07:29 +02:00
drm_property.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_rect.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_scatter.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_scdc_helper.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_self_refresh_helper.c
drm: Measure Self Refresh Entry/Exit times to avoid thrashing
2019-09-19 10:03:32 -04:00
drm_simple_kms_helper.c
Linux 5.2-rc5
2019-06-19 12:07:29 +02:00
drm_syncobj.c
drm/syncobj: Add better overview documentation for syncobj (v2)
2019-08-12 16:58:52 +02:00
drm_sysfs.c
drm: uevent for connector status change
2019-08-06 13:16:54 +05:30
drm_trace_points.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_trace.h
drm: make drm_trace.h self-contained
2019-05-27 18:06:54 +02:00
drm_vblank.c
drm/vblank: drop use of DRM_WAIT_ON()
2019-08-03 16:07:39 +02:00
drm_vm.c
gpu/drm: fix a few kernel-doc "/**" mark warnings
2019-07-16 11:25:02 +02:00
drm_vma_manager.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_vram_helper_common.c
drm: Replace drm_gem_vram_push_to_system() with kunmap + unpin
2019-05-22 12:43:29 +02:00
drm_vram_mm_helper.c
drm: drop use of drmP.h in drm/*
2019-05-27 18:07:03 +02:00
drm_writeback.c
drm: Clear the fence pointer when writeback job signaled
2019-09-23 15:32:53 +08:00
Kconfig
drm-misc-next for 5.4:
2019-08-09 16:04:31 +10:00
Makefile
drm/amd: remove meaningless descending into amd/amdkfd/
2019-08-27 10:09:12 -05:00