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linux/drivers/gpu/drm
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Chris Wilson d22d2d073e drm/i915: Protect i915_request_await_start from early waits 
We need to be extremely careful inside i915_request_await_start() as it
needs to walk the list of requests in the foreign timeline with very
little protection. As we hold our own timeline mutex, we can not nest
inside the signaler's timeline mutex, so all that remains is our RCU
protection. However, to be safe we need to tell the compiler that we may
be traversing the list only under RCU protection, and furthermore we
need to start declaring requests as elements of the timeline from their
construction.

Fixes: 9ddc8ec027a3 ("drm/i915: Eliminate the trylock for awaiting an earlier request")
Fixes: 6a79d848403d ("drm/i915: Lock signaler timeline while navigating")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200227085723.1961649-11-chris@chris-wilson.co.uk
2020-02-28 13:35:11 +00:00
..
amd
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
arc
drm/arc: Remove sending of vblank event
2020-01-30 08:57:22 +01:00
arm
Linux 5.5-rc7
2020-01-20 11:42:57 +10:00
armada
drm: constify fb ops across all drivers
2019-12-05 10:57:42 +02:00
aspeed
drm/aspeed: gfc_crtc: Make structure aspeed_gfx_funcs constant
2019-08-14 19:27:26 +02:00
ast
drm/vram: Add helpers to validate a display mode's memory requirements
2020-02-06 10:32:54 +01:00
atmel-hlcdc
Revert "drm: atmel-hlcdc: enable sys_clk during initalization."
2020-01-06 19:54:27 +01:00
bochs
drm/bochs: Clear struct drm_connector_funcs.dpms
2020-02-10 09:23:50 +01:00
bridge
drm/bridge: Patch atomic hooks to take a drm_bridge_state
2020-01-31 16:00:24 +01:00
cirrus
drm/cirrus: Remove sending of vblank event
2020-01-30 09:00:45 +01:00
etnaviv
drm pull for 5.6-rc1
2020-01-30 08:04:01 -08:00
exynos
drm/exynos: Rename Exynos to lowercase
2020-01-21 09:09:42 +09:00
fsl-dcu
drm/panel: decouple connector from drm_panel
2019-12-09 22:57:26 +01:00
gma500
drm pull for 5.6-rc1
2020-01-30 08:04:01 -08:00
hisilicon
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
i2c
drm: tda998x: use cec_notifier_conn_(un)register
2019-10-21 14:23:25 +02:00
i810
drm/i810: Don't include <drm/drm_pci.h>
2019-12-05 08:44:12 +01:00
i915
drm/i915: Protect i915_request_await_start from early waits
2020-02-28 13:35:11 +00:00
imx
drm/imx: pd: Use bus format/flags provided by the bridge when available
2020-01-31 16:40:12 +01:00
ingenic
gpu/drm: ingenic: Add support for the JZ4770
2019-12-14 19:26:55 +01:00
lib
…
lima
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
mcde
drm-misc-next for v5.6:
2020-01-03 11:43:44 +10:00
mediatek
Linux 5.5-rc7
2020-01-20 11:42:57 +10:00
meson
drm: meson: fix address type confusion
2020-01-08 13:51:56 +01:00
mga
drm/mga: Don't include <drm/drm_pci.h>
2019-12-05 08:44:16 +01:00
mgag200
drm/mgag200: Add module parameter to pin all buffers at offset 0
2020-01-07 11:53:19 +01:00
msm
drm-misc-next fixes for v5.6:
2020-02-14 12:57:57 +10:00
mxsfb
drm/panel: decouple connector from drm_panel
2019-12-09 22:57:26 +01:00
nouveau
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
omapdrm
drm/omapdrm: use BUG_ON macro for error debugging.
2020-01-08 18:35:36 +01:00
panel
drm/panel: simple: Fix the lt089ac29000 bus_format
2020-01-31 17:48:16 +01:00
panfrost
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
pl111
drm: get drm_bridge_panel connector via helper
2019-12-09 22:57:26 +01:00
qxl
drm/qxl: Remove sending of vblank event
2020-01-30 09:00:45 +01:00
r128
drm/r128: Don't include <drm/drm_pci.h>
2019-12-05 08:44:23 +01:00
radeon
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
rcar-du
drm/bridge: Patch atomic hooks to take a drm_bridge_state
2020-01-31 16:00:24 +01:00
rockchip
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
savage
drm/savage: Don't include <drm/drm_pci.h>
2019-12-05 08:44:34 +01:00
scheduler
drm/amdgpu: fix doc by clarifying sched_list definition
2020-01-27 16:46:44 -05:00
selftests
Merge tag 'amd-drm-next-5.6-2020-01-10-dp-mst-dsc' of git://people.freedesktop.org/~agd5f/linux into drm-next
2020-01-13 17:14:34 +10:00
shmobile
drm/shmobile: drop use of drmP.h
2019-07-15 18:11:31 +02:00
sis
drm/sis: Don't include <drm/drm_pci.h>
2019-12-05 08:44:55 +01:00
sti
drm pull for 5.6-rc1
2020-01-30 08:04:01 -08:00
stm
drm/stm: dsi: stm mipi dsi doesn't print error on probe deferral
2020-02-04 11:47:43 +01:00
sun4i
Fixes for v5.6:
2020-02-14 12:53:00 +10:00
tdfx
drm/tdfx: Don't include <drm/drm_pci.h>
2019-12-05 08:45:01 +01:00
tegra
drm/tegra: Fixes for v5.6-rc1
2020-02-07 12:22:30 +10:00
tidss
drm/tidss: New driver for TI Keystone platform Display SubSystem
2020-01-27 19:27:30 +02:00
tilcdc
drm pull for 5.6-rc1
2020-01-30 08:04:01 -08:00
tiny
drm/tiny/st7735r: No need to set ->owner for spi_register_driver()
2020-02-10 02:54:47 +01:00
ttm
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
tve200
drm: get drm_bridge_panel connector via helper
2019-12-09 22:57:26 +01:00
udl
drm/udl: Clear struct drm_connector_funcs.dpms
2020-02-10 09:24:09 +01:00
v3d
drm/scheduler: rework entity creation
2019-12-18 16:09:12 -05:00
vboxvideo
drm/vboxvideo: Implement struct drm_mode_config_funcs.mode_valid
2020-02-06 10:34:06 +01:00
vc4
drm/vc4: plane_state->fb iff plane_state->crtc
2020-01-28 15:42:43 +01:00
vgem
drm/vgem: Close use-after-free race in vgem_gem_create
2020-02-06 19:04:41 +01:00
via
Merge branch 'akpm' (patches from Andrew)
2020-01-31 12:16:36 -08:00
virtio
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
vkms
drm/vkms: plane_state->fb iff plane_state->crtc
2020-01-28 15:43:32 +01:00
vmwgfx
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
xen
drm/xen: Explicitly disable automatic sending of vblank event
2020-01-30 09:00:51 +01:00
zte
drm/zte: plane_state->fb iff plane_state->crtc
2020-01-28 15:43:58 +01:00
drm_agpsupport.c
drm: use DIV_ROUND_UP helper macro for calculations
2019-11-04 18:17:36 +01:00
drm_atomic_helper.c
drm/bridge: Add the necessary bits to support bus format negotiation
2020-01-31 16:39:53 +01:00
drm_atomic_state_helper.c
drm/bridge: Add a drm_bridge_state object
2020-01-31 16:00:21 +01:00
drm_atomic_uapi.c
drm/atomic: Spell CRTC consistently
2019-12-22 11:13:00 +01:00
drm_atomic.c
drm/bridge: Add a drm_bridge_state object
2020-01-31 16:00:21 +01:00
drm_auth.c
drm/auth: Drop master_create/destroy hooks
2020-01-29 09:14:11 +01:00
drm_blend.c
drm: two planes with the same zpos have undefined ordering
2019-10-09 20:04:55 +02:00
drm_bridge.c
drm/bridge: Add the necessary bits to support bus format negotiation
2020-01-31 16:39:53 +01:00
drm_bufs.c
drm: Remove the dma_alloc_coherent wrapper for internal usage
2020-02-04 23:57:26 +00:00
drm_cache.c
drm/gpu: Fix Memory barrier without comment Issue
2019-10-25 09:35:06 +02:00
drm_client_modeset.c
drm/fbdev: Fallback to non tiled mode if all tiles not present
2019-12-29 23:55:23 -08:00
drm_client.c
drm/client: convert to drm device based logging
2019-12-19 15:52:44 +02:00
drm_color_mgmt.c
drm: Inline drm_color_lut_extract()
2019-11-29 21:29:17 +02:00
drm_connector.c
drm/connector: Hookup the new drm_cmdline_mode panel_orientation member (v2)
2020-01-11 11:57:59 +01:00
drm_context.c
…
drm_crtc_helper_internal.h
drm/connector: Share with non-atomic drivers the function to get the single encoder
2019-09-16 15:13:02 -07:00
drm_crtc_helper.c
drm/crtc-helper: drm_connector_get_single_encoder prototype is missing
2019-12-03 17:42:57 +01:00
drm_crtc_internal.h
drm: Add getfb2 ioctl
2020-01-14 16:22:17 -05:00
drm_crtc.c
…
drm_damage_helper.c
drm: damage_helper: Fix race checking plane->state->fb
2019-10-08 09:41:06 -04:00
drm_debugfs_crc.c
drm/crc: Actually allow to change the crc source
2020-01-28 16:49:22 +01:00
drm_debugfs.c
drm/debugfs: also take per device driver features into account
2020-01-25 15:49:11 +02:00
drm_dma.c
drm: fix parameters documentation style in drm_dma
2020-01-18 10:33:12 +01:00
drm_dp_aux_dev.c
drm/dp_mst: Add MST support to DP DPCD R/W functions
2020-01-09 18:07:46 -05:00
drm_dp_cec.c
drm_dp_cec: drop use of drmP.h
2019-10-08 18:29:00 +02:00
drm_dp_dual_mode_helper.c
…
drm_dp_helper.c
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
drm_dp_mst_topology_internal.h
drm/dp_mst: Add sideband down request tracing + selftests
2019-09-03 19:30:06 -04:00
drm_dp_mst_topology.c
drm-misc-next for 5.7:
2020-02-21 05:44:40 +10:00
drm_drv.c
drm: remove duplicate check on parent and avoid BUG_ON
2019-12-17 17:26:08 +01:00
drm_dsc.c
drm/dsc: Fix bogus cpu_to_be16() usage
2019-09-30 20:15:53 +03:00
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
drm/print: add drm_debug_enabled()
2019-10-02 16:28:55 +03:00
drm_edid.c
drm/edid: fix building error
2020-02-06 22:01:40 +02:00
drm_encoder_slave.c
…
drm_encoder.c
drm/bridge: Make the bridge chain a double-linked list
2019-12-09 10:03:01 +01:00
drm_fb_cma_helper.c
drm/fb-cma-helpers: Fix include issue
2020-01-09 17:33:41 +01:00
drm_fb_helper.c
Linux 5.5-rc7
2020-01-20 11:42:57 +10:00
drm_file.c
drm: Avoid drm_global_mutex for simple inc/dec of dev->open_count
2020-01-24 17:41:34 +00:00
drm_flip_work.c
…
drm_format_helper.c
…
drm_fourcc.c
drm/fourcc: Fill out all block sizes for P210
2019-11-28 11:19:32 +01:00
drm_framebuffer.c
drm: Add getfb2 ioctl
2020-01-14 16:22:17 -05:00
drm_gem_cma_helper.c
…
drm_gem_framebuffer_helper.c
drm/gem-fb-helper: convert to drm device based logging
2019-12-19 15:55:10 +02:00
drm_gem_shmem_helper.c
drm: call drm_gem_object_funcs.mmap with fake offset
2019-12-06 11:18:11 +01:00
drm_gem_ttm_helper.c
drm/ttm: fix mmap refcounting
2019-11-15 08:00:08 +01:00
drm_gem_vram_helper.c
drm/vram: Add helpers to validate a display mode's memory requirements
2020-02-06 10:32:54 +01:00
drm_gem.c
drm-misc-next for v5.6:
2019-12-17 13:57:54 +01:00
drm_hashtab.c
…
drm_hdcp.c
drm/hdcp: reference for srm file format
2019-08-06 13:18:42 +05:30
drm_internal.h
drm/pci: Only build drm_pci.c if CONFIG_PCI is set
2019-12-05 08:43:14 +01:00
drm_ioc32.c
Linus 5.3-rc1
2019-07-22 21:24:10 +02:00
drm_ioctl.c
drm: Add getfb2 ioctl
2020-01-14 16:22:17 -05:00
drm_irq.c
…
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
…
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_lock.c
gpu/drm: clean up white space in drm_legacy_lock_master_cleanup()
2020-01-08 19:51:11 +01:00
drm_memory.c
drm: Include prototype for drm_need_swiotlb()
2019-09-30 20:16:28 +03:00
drm_mipi_dbi.c
drm/mipi-dbi: Remove sending of vblank event
2020-01-30 09:00:45 +01:00
drm_mipi_dsi.c
drm/dsi: add helpers for DSI compression mode and PPS packets
2019-11-07 15:00:16 +02:00
drm_mm.c
drm/mm: Use clear_bit_unlock() for releasing the drm_mm_node()
2019-10-04 13:43:43 +01:00
drm_mode_config.c
drm/modeset: Prime modeset lock vs dma_resv
2019-11-21 11:03:31 +01:00
drm_mode_object.c
drm/property: Enforce more lifetime rules
2019-11-04 18:17:36 +01:00
drm_modes.c
drm/modes: tag unused variables to avoid warnings
2020-01-09 17:17:28 +01:00
drm_modeset_helper.c
…
drm_modeset_lock.c
docs conversion for v5.3-rc1
2019-07-16 12:21:41 -07:00
drm_of.c
drm: of: Add drm_of_lvds_get_dual_link_pixel_order
2019-12-18 02:40:16 +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/drm_panel: Fix EXPORT of drm_panel_of_backlight() one more time
2019-12-17 20:39:33 +01:00
drm_pci.c
drm: Remove the dma_alloc_coherent wrapper for internal usage
2020-02-04 23:57:26 +00:00
drm_plane_helper.c
…
drm_plane.c
…
drm_prime.c
drm: share address space for dma bufs
2019-12-06 11:18:11 +01:00
drm_print.c
drm/print: convert debug category macros into an enum
2019-11-14 14:08:57 +02:00
drm_probe_helper.c
drm: Stop accessing encoder->bridge directly
2019-12-09 10:02:45 +01:00
drm_property.c
drm: limit to INT_MAX in create_blob ioctl
2019-12-04 19:44:13 -08:00
drm_rect.c
drm/rect: update kerneldoc for drm_rect_clip_scaled()
2019-11-28 13:15:43 +01:00
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_self_refresh_helper.c
drm/atomic: fix self-refresh helpers crtc state dereference
2019-11-06 13:00:21 -05:00
drm_simple_kms_helper.c
drm/simple-kms: Standardize arguments for callbacks
2019-10-24 13:55:56 +02:00
drm_syncobj.c
drm/syncobj: Add documentation for timeline syncobj
2020-01-20 14:22:21 +01:00
drm_sysfs.c
drm: uevent for connector status change
2019-08-06 13:16:54 +05:30
drm_trace_points.c
…
drm_trace.h
drm: Add high-precision time to vblank trace event
2019-09-03 09:46:18 +02:00
drm_vblank.c
drm: Initialize struct drm_crtc_state.no_vblank from device settings
2020-01-30 08:57:12 +01:00
drm_vm.c
drm: Remove the dma_alloc_coherent wrapper for internal usage
2020-02-04 23:57:26 +00:00
drm_vma_manager.c
…
drm_vram_helper_common.c
drm/vram: Have VRAM MM call GEM VRAM functions directly
2019-09-12 19:54:42 +02:00
drm_writeback.c
drm: Clear the fence pointer when writeback job signaled
2019-09-23 15:32:53 +08:00
Kconfig
drm/tidss: New driver for TI Keystone platform Display SubSystem
2020-01-27 19:27:30 +02:00
Makefile
drm/tidss: New driver for TI Keystone platform Display SubSystem
2020-01-27 19:27:30 +02:00