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52e5420907
linux/drivers/gpu/drm
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Chris Wilson 52e5420907 drm/i915/scheduler: Record all dependencies upon request construction 
The scheduler needs to know the dependencies of each request for the
lifetime of the request, as it may choose to reschedule the requests at
any time and must ensure the dependency tree is not broken. This is in
additional to using the fence to only allow execution after all
dependencies have been completed.

One option was to extend the fence to support the bidirectional
dependency tracking required by the scheduler. However the mismatch in
lifetimes between the submit fence and the request essentially meant
that we had to build a completely separate struct (and we could not
simply reuse the existing waitqueue in the fence for one half of the
dependency tracking). The extra dependency tracking simply did not mesh
well with the fence, and keeping it separate both keeps the fence
implementation simpler and allows us to extend the dependency tracking
into a priority tree (whilst maintaining support for reordering the
tree).

To avoid the additional allocations and list manipulations, the use of
the priotree is disabled when there are no schedulers to use it.

v2: Create a dedicated slab for i915_dependency.
    Rename the lists.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-7-chris@chris-wilson.co.uk
2016-11-14 21:00:28 +00:00
..
amd Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2016-10-28 11:33:52 +10:00
arc drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
arm drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
armada drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
ast drm/ttm: make eviction decision a driver callback v2 2016-10-25 14:44:04 -04:00
atmel-hlcdc drm/atmel-hlcdc: Use per-plane rotation property 2016-10-21 18:24:09 +02:00
bochs drm/ttm: make eviction decision a driver callback v2 2016-10-25 14:44:04 -04:00
bridge drm/bridge: fix platform_no_drv_owner.cocci warnings 2016-10-27 11:35:23 +05:30
cirrus drm/ttm: make eviction decision a driver callback v2 2016-10-25 14:44:04 -04:00
etnaviv drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
exynos Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
fsl-dcu drm/fsl-dcu: enable pixel clock when enabling CRTC 2016-10-19 17:03:02 -07:00
gma500 drm: gma500: Replace drm_fb_get_bpp_depth() with drm_format_info() 2016-10-18 15:22:38 +05:30
hisilicon drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
i2c drm/i2c/tda998x: mark symbol static where possible 2016-10-24 16:27:16 +02:00
i810
i915 drm/i915/scheduler: Record all dependencies upon request construction 2016-11-14 21:00:28 +00:00
imx Linux 4.8-rc8 2016-09-28 12:08:49 +10:00
mediatek drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
mga
mgag200 drm/ttm: make eviction decision a driver callback v2 2016-10-25 14:44:04 -04:00
msm drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
nouveau Merge branch 'linux-4.9' of git://github.com/skeggsb/linux into drm-next 2016-10-28 14:24:56 +10:00
omapdrm drm/omap: Use per-plane rotation property 2016-10-21 18:25:47 +02:00
panel drm/panel: Add JDI LT070ME05000 WUXGA DSI Panel 2016-09-16 17:32:48 +02:00
qxl Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2016-10-28 11:33:52 +10:00
r128
radeon Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2016-10-28 11:33:52 +10:00
rcar-du drm: Add reference counting to drm_atomic_state 2016-10-17 08:19:57 +02:00
rockchip drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
savage drm/savage: dereferencing an error pointer 2016-10-13 07:56:14 +02:00
shmobile
sis
sti drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
sun4i drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
tdfx
tegra gpu: Remove depends on RESET_CONTROLLER when not a provider 2016-10-19 09:26:15 +02:00
tilcdc drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
ttm Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2016-10-28 11:33:52 +10:00
udl Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
vc4 Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
vgem dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
via mm: replace get_user_pages() write/force parameters with gup_flags 2016-10-19 08:11:43 -07:00
virtio Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2016-10-28 11:33:52 +10:00
vmwgfx Merge tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2016-10-28 11:33:52 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
drm_atomic.c dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
drm_auth.c
drm_blend.c drm: RIP mode_config->rotation_property 2016-10-22 10:42:11 +02:00
drm_bridge.c drm: Extract drm_bridge.h 2016-09-19 15:04:15 +02:00
drm_bufs.c GPU-DRM: Replace a kzalloc() call by kcalloc() in drm_legacy_addbufs_sg() 2016-09-21 13:24:27 +02:00
drm_cache.c
drm_color_mgmt.c drm/doc: Document color space handling 2016-09-22 00:04:03 -07:00
drm_connector.c drm: Release resources with a safer function 2016-10-10 11:20:48 +02:00
drm_context.c
drm_crtc_helper_internal.h drm/fb-helper: Fix sparse warnings 2016-09-19 16:45:15 +02:00
drm_crtc_helper.c
drm_crtc_internal.h drm: Extract drm_color_mgmt.[hc] 2016-09-22 00:04:02 -07:00
drm_crtc.c drm: Add drm_rotation_90_or_270() 2016-10-21 18:21:33 +02:00
drm_debugfs_crc.c drm: fix sparse warnings on undeclared symbols in crc debugfs 2016-10-19 14:10:29 +03:00
drm_debugfs.c Merge tag 'topic/drm-misc-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:35:20 +10:00
drm_dma.c
drm_dp_aux_dev.c
drm_dp_dual_mode_helper.c drm: Print some debug/error info during DP dual mode detect 2016-10-26 15:57:11 -04:00
drm_dp_helper.c Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
drm_dp_mst_topology.c
drm_drv.c drm: Simplify drm_printk to reduce object size quite a bit 2016-10-04 08:23:14 +02:00
drm_edid_load.c
drm_edid.c drm/edid: Remove drm_select_eld 2016-11-09 13:55:13 +01:00
drm_encoder_slave.c
drm_encoder.c drm: Fix typo in encoder docs 2016-09-21 13:33:50 +02:00
drm_fb_cma_helper.c drm/fb_cma_helper: do not free fbdev if there is none 2016-10-20 09:05:34 +02:00
drm_fb_helper.c drm: RIP mode_config->rotation_property 2016-10-22 10:42:11 +02:00
drm_flip_work.c
drm_fops.c dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
drm_fourcc.c drm: Don't export the drm_fb_get_bpp_depth() function 2016-10-18 15:24:08 +05:30
drm_framebuffer.c drm: WARN when calling drm_format_info() for an unsupported format 2016-10-18 15:21:38 +05:30
drm_gem_cma_helper.c
drm_gem.c drm: use drm_file to tag vm-bos 2016-09-19 11:22:08 +02:00
drm_global.c drm: modify drm_global_item_ref to avoid two times of writing ref->object 2016-09-14 15:10:29 -04:00
drm_hashtab.c drm: fix signed integer overflow 2016-09-06 13:56:41 -04:00
drm_info.c drm: Print device information again in debugfs 2016-10-17 16:20:53 +10:00
drm_internal.h drm: Add API for capturing frame CRCs 2016-10-17 16:44:34 +02:00
drm_ioc32.c drm: drop obsolete drm_core.h 2016-09-19 13:57:38 +02:00
drm_ioctl.c drm: drop obsolete drm_core.h 2016-09-19 13:57:38 +02:00
drm_irq.c drm: avoid uninitialized timestamp use in wait_vblank 2016-10-18 09:45:17 +02:00
drm_kms_helper_common.c
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c drm/dsi: Implement DCS set/get display brightness 2016-08-24 13:34:00 +02:00
drm_mm.c
drm_mode_object.c drm: Move property validation to a helper, v2. 2016-09-12 10:32:49 -04:00
drm_modes.c drm: Use u64 for intermediate dotclock calculations 2016-10-21 20:23:16 +02:00
drm_modeset_helper.c drm: Don't export the drm_fb_get_bpp_depth() function 2016-10-18 15:24:08 +05:30
drm_modeset_lock.c
drm_of.c drm: convert DT component matching to component_match_add_release() 2016-10-25 11:52:38 -04:00
drm_panel.c
drm_pci.c drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
drm_plane_helper.c drm: Fix kerneldoc in drm_plane_helper.c 2016-08-16 18:50:04 +02:00
drm_plane.c drm: Undo damage to page_flip_ioctl 2016-10-04 12:53:12 +10:00
drm_platform.c drm: Don't swallow error codes in drm_dev_alloc() 2016-09-22 04:03:48 -07:00
drm_prime.c drm: Fix up kerneldoc for new drm_gem_dmabuf_export() 2016-10-10 11:19:42 +02:00
drm_probe_helper.c drm: drm_probe_helper: Fix output_poll_work scheduling 2016-08-31 13:23:30 +02:00
drm_property.c Revert "drm: Unify handling of blob and object properties" 2016-09-07 13:24:22 +03:00
drm_rect.c
drm_scatter.c
drm_simple_kms_helper.c drm: simple_kms_helper: Add prepare_fb and cleanup_fb hooks 2016-10-05 15:18:02 +02:00
drm_sysfs.c drm: drop obsolete drm_core.h 2016-09-19 13:57:38 +02:00
drm_trace_points.c
drm_trace.h
drm_vm.c
drm_vma_manager.c drm: use drm_file to tag vm-bos 2016-09-19 11:22:08 +02:00
Kconfig Revert "drm: make DRI1 drivers depend on BROKEN" 2016-09-01 06:16:12 +10:00
Makefile drm: Add API for capturing frame CRCs 2016-10-17 16:44:34 +02:00