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Chris Wilson 736e785f9b drm/i915/gem: Reduce context termination list iteration guard to RCU 
As we now protect the timeline list using RCU, we can drop the
timeline->mutex for guarding the list iteration during context close, as
we are searching for an inflight request. Any new request will see the
context is banned and not be submitted. In doing so, pull the checks for
a concurrent submission of the request (notably the
i915_request_completed()) under the engine spinlock, to fully serialise
with __i915_request_submit()). That is in the case of preempt-to-busy
where the request may be completed during the __i915_request_submit(),
we need to be careful that we sample the request status after
serialising so that we don't miss the request the engine is actually
submitting.

Fixes: 4a31741521 ("drm/i915/gem: Refine occupancy test in kill_context()")
References: d22d2d073e ("drm/i915: Protect i915_request_await_start from early waits") # rcu protection of timeline->requests
References: https://gitlab.freedesktop.org/drm/intel/-/issues/1622
References: https://gitlab.freedesktop.org/drm/intel/-/issues/2158
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/20200806105954.7766-1-chris@chris-wilson.co.uk
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
 		2020-09-07 14:28:14 +03:00
..
amd drm-misc-next for 5.10: 2020-08-28 12:38:06 +10:00
arc drm/arc: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:02:03 +02:00
arm drm/malidp: Use struct drm_gem_object_funcs.get_sg_table internally 2020-08-18 15:26:32 +02:00
armada drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
aspeed Linux 5.8-rc6 2020-07-24 08:48:05 +10:00
ast drm: ast: fix double __iomem sparse warning 2020-08-19 09:14:40 +02:00
atmel-hlcdc drm/atomic-helper: reset vblank on crtc reset 2020-07-02 20:25:51 +02:00
bochs Linux 5.8 2020-08-11 11:58:31 +10:00
bridge drm/bridge: ps8640: Print an error if VDO control fails 2020-08-26 19:13:37 +02:00
etnaviv Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next 2020-07-23 15:28:10 +10:00
exynos Linux 5.9-rc1 2020-08-18 14:14:25 +02:00
fsl-dcu drm: Remove unnecessary drm_panel_attach and drm_panel_detach 2020-08-08 09:06:33 +02:00
gma500 drm/gma500: fix error check 2020-08-19 15:49:10 +02:00
hisilicon drm/hisilicon: Use drm_err instead of DRM_ERROR in hibmc_drm_drv 2020-08-25 20:49:06 -04:00
i2c sound updates for 5.9 2020-08-06 14:27:31 -07:00
i810 drm/i810: switch from 'pci_' to 'dma_' API 2020-07-20 09:34:24 +02:00
i915 drm/i915/gem: Reduce context termination list iteration guard to RCU 2020-09-07 14:28:14 +03:00
imx Merge drm/drm-next into drm-misc-next 2020-08-12 20:42:08 +02:00
ingenic drm/ingenic: ipu: Only enable clock when needed 2020-07-30 18:19:57 +02:00
lib
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lima Linux 5.8 2020-08-11 11:58:31 +10:00
mcde drm/mcde: Retry DSI read/write transactions 2020-08-15 12:14:18 +02:00
mediatek drm: Remove unnecessary drm_panel_attach and drm_panel_detach 2020-08-08 09:06:33 +02:00
meson Linux 5.8-rc6 2020-07-24 08:48:05 +10:00
mga
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mgag200 drm/mgag200: fix spelling mistake "expeced" -> "expected" 2020-08-27 11:17:52 +02:00
msm Linux 5.9-rc1 2020-08-18 14:14:25 +02:00
mxsfb drm: mxsfb: Support the alpha plane 2020-07-28 17:21:58 +02:00
nouveau drm/ttm: init mem->bus in common code. 2020-08-24 17:00:48 +10:00
omapdrm drm/omap: fix spelling mistake "propert" -> "property" 2020-08-21 15:15:11 +03:00
panel drm: panel: simple: Add KD116N21-30NV-A010 2020-08-21 19:14:28 +02:00
panfrost Linux 5.9-rc1 2020-08-18 14:14:25 +02:00
pl111 drm: pl111: Update documentation 2020-07-23 10:06:22 +02:00
qxl drm/ttm: init mem->bus in common code. 2020-08-24 17:00:48 +10:00
r128
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radeon drm/ttm: drop bus.size from bus placement. 2020-08-24 17:06:08 +10:00
rcar-du Merge drm/drm-next into drm-misc-next 2020-08-12 20:42:08 +02:00
rockchip Linux 5.9-rc1 2020-08-18 14:14:25 +02:00
savage
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scheduler This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
selftests drm/mm/selftests: fix wrong return type casting 2020-06-23 15:57:30 +02:00
shmobile drm/shmobile: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:05:18 +02:00
sis
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sti Linux 5.9-rc1 2020-08-18 14:14:25 +02:00
stm drm/stm: repair runtime power management 2020-07-08 11:47:01 +02:00
sun4i drm/sun4i: Constify static structs 2020-08-18 10:49:13 +02:00
tdfx
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tegra Merge drm/drm-next into drm-misc-next 2020-08-12 20:42:08 +02:00
tidss drm/tidss: implement WA for AM65xx erratum i2000 2020-08-21 15:17:05 +03:00
tilcdc drm/tilcdc: Use standard drm_atomic_helper_commit 2020-07-14 10:32:33 +02:00
tiny drm/mipi-dbi: Remove ->enabled 2020-06-24 09:17:34 +02:00
ttm drm/ttm: drop bus.size from bus placement. 2020-08-24 17:06:08 +10:00
tve200 drm/tve200: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:06:11 +02:00
udl drm/udl: Use GEM vmap/mmap function from SHMEM helpers 2020-06-10 10:17:21 +02:00
v3d drm/v3d: convert to use module_platform_driver 2020-08-10 15:32:00 +02:00
vboxvideo drm/vboxvideo: Replace HTTP links with HTTPS ones 2020-07-16 22:12:50 +02:00
vc4 drm/vc4: crtc: Remove the feed_txp tests 2020-07-07 10:51:58 +02:00
vgem drm/vgem: add missing platform_device_unregister() in vgem_init() 2020-08-10 15:31:02 +02:00
via
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virtio drm-misc-next for 5.10: 2020-08-28 12:38:06 +10:00
vkms drm/vkms: add missing platform_device_unregister() in vkms_init() 2020-08-10 15:31:19 +02:00
vmwgfx drm/ttm: init mem->bus in common code. 2020-08-24 17:00:48 +10:00
xen xen: branch for v5.9-rc1b 2020-08-14 13:34:37 -07:00
xlnx drm: xlnx: zynqmp: Use switch - case for link rate downshift 2020-08-01 01:56:10 +00:00
zte sound updates for 5.9 2020-08-06 14:27:31 -07:00
Kconfig drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem 2020-07-18 02:59:16 +03:00
Makefile Xilinx ZynqMP DisplayPort Subsystem driver 2020-07-23 15:31:38 +10:00
drm_agpsupport.c
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drm_atomic.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_atomic_helper.c drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid() 2020-06-23 19:53:27 +02:00
drm_atomic_state_helper.c drm/atomic-helper: reset vblank on crtc reset 2020-07-02 20:25:51 +02:00
drm_atomic_uapi.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_auth.c drm/auth: make drm_{set,drop}master_ioctl symmetrical 2020-06-15 14:49:50 +01:00
drm_blend.c drm: plane: Verify that no or all planes have a zpos property 2020-05-14 02:10:52 +03:00
drm_bridge.c drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid() 2020-06-23 19:53:27 +02:00
drm_bridge_connector.c drm/bridge_connector: Set default status connected for eDP connectors 2020-08-26 19:11:41 +02:00
drm_bufs.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_cache.c
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drm_client.c drm/client: Add drm_client_framebuffer_flush() 2020-05-26 13:31:01 +02:00
drm_client_modeset.c drm: Nuke mode->vrefresh 2020-05-27 14:31:42 +03:00
drm_color_mgmt.c
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drm_connector.c drm: report dp downstream port type as a subconnector property 2020-08-11 14:06:04 +02:00
drm_context.c
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drm_crtc.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_crtc_helper.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_crtc_helper_internal.h drm/probe_helper: Add drm_connector_helper_funcs.mode_valid_ctx 2020-07-13 13:29:20 -04:00
drm_crtc_internal.h
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drm_damage_helper.c
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drm_debugfs.c drm/debug: Expose connector VRR monitor range via debugfs 2020-06-25 15:47:14 -07:00
drm_debugfs_crc.c
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drm_dma.c
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drm_dp_aux_dev.c
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drm_dp_cec.c
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drm_dp_dual_mode_helper.c
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drm_dp_helper.c drm: report dp downstream port type as a subconnector property 2020-08-11 14:06:04 +02:00
drm_dp_mst_topology.c drm: fix drm_dp_mst_port refcount leaks in drm_dp_mst_allocate_vcpi 2020-08-04 12:21:11 -04:00
drm_dp_mst_topology_internal.h
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drm_drv.c drm: Remove redundant NULL check 2020-07-27 22:06:13 +02:00
drm_dsc.c
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drm_dumb_buffers.c
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drm_edid.c drm next for 5.9-rc1 2020-08-05 19:50:06 -07:00
drm_edid_load.c
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drm_encoder.c
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drm_encoder_slave.c drm: encoder_slave: use new I2C API 2020-06-19 09:20:21 +02:00
drm_fb_cma_helper.c drm: Fix misspellings of "Analog Devices" 2020-04-21 08:15:03 +02:00
drm_fb_helper.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_file.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_flip_work.c
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drm_format_helper.c drm/format-helper: Add drm_fb_swab() 2020-05-26 13:33:08 +02:00
drm_fourcc.c drm: drm_fourcc: add NV15, Q410, Q401 YUV formats 2020-06-19 13:33:40 +01:00
drm_framebuffer.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_gem.c * backmerge from drm-fixes at v5.8-rc7 2020-08-11 12:00:30 +10:00
drm_gem_cma_helper.c drm: core: Convert device logging to drm_* functions. 2020-07-20 09:34:24 +02:00
drm_gem_framebuffer_helper.c drm: remove _unlocked suffix in drm_gem_object_put_unlocked 2020-05-19 22:31:31 +01:00
drm_gem_shmem_helper.c drm/shmem-helper: Only dma-buf imports are private obj 2020-06-16 19:11:51 +02:00
drm_gem_ttm_helper.c drm: remove _unlocked suffix in drm_gem_object_put_unlocked 2020-05-19 22:31:31 +01:00
drm_gem_vram_helper.c drm/ttm: init mem->bus in common code. 2020-08-24 17:00:48 +10:00
drm_hashtab.c
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drm_hdcp.c drm: Fix HDCP failures when SRM fw is missing 2020-05-05 14:01:53 -04:00
drm_internal.h drm/vblank: Add vblank works 2020-07-16 18:16:31 -04:00
drm_ioc32.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_ioctl.c drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
drm_irq.c drm: use drm_dev_has_vblank more 2020-05-29 12:58:11 +02:00
drm_kms_helper_common.c
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drm_lease.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_legacy.h
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drm_legacy_misc.c
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drm_lock.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_managed.c drm: Include internal header for managed function declarations 2020-05-18 16:27:54 +01:00
drm_memory.c
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drm_mipi_dbi.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_mipi_dsi.c drm: mipi-dsi: Convert logging to drm_* functions. 2020-07-10 20:21:45 +02:00
drm_mm.c drm/mm: cleanup and improve next_hole_*_addr() 2020-06-23 15:46:40 +02:00
drm_mode_config.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_mode_object.c drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers 2020-05-05 10:51:56 +02:00
drm_modes.c drm: Replace HTTP links with HTTPS ones 2020-07-20 11:47:28 +02:00
drm_modeset_helper.c
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drm_modeset_lock.c
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drm_of.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_panel.c drm/panel: Add helper for reading DT rotation 2020-08-16 17:12:18 +02:00
drm_panel_orientation_quirks.c drm: Added orientation quirk for ASUS tablet model T103HAF 2020-08-04 11:45:23 +02:00
drm_pci.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_plane.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_plane_helper.c
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drm_prime.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_print.c
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drm_probe_helper.c Merge tag 'drm-intel-next-2020-07-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2020-07-31 14:42:37 +10:00
drm_property.c
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drm_rect.c
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drm_scatter.c gpu/drm: remove the powerpc hack in drm_legacy_sg_alloc 2020-06-02 10:59:11 -07:00
drm_scdc_helper.c
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drm_self_refresh_helper.c
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drm_simple_kms_helper.c
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drm_syncobj.c drm/syncobj: Tune down unordered timeline DRM_ERROR 2020-08-02 15:22:31 +02:00
drm_sysfs.c drm/connector: notify userspace on hotplug after register complete 2020-06-03 10:24:23 +02:00
drm_trace.h
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drm_trace_points.c
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drm_vblank.c drm/vblank: Use spin_(un)lock_irq() in drm_crtc_queue_sequence_ioctl() 2020-07-21 11:08:35 -04:00
drm_vblank_work.c This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
drm_vm.c drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
drm_vma_manager.c
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drm_writeback.c drm/writeback: don't set fence->ops to default 2020-05-20 20:03:45 +02:00