AuxXxilium/linux_dsm_epyc7002
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4f88f8747f
linux_dsm_epyc7002/drivers/gpu/drm
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Chris Wilson 4f88f8747f drm/i915/gt: Schedule request retirement when timeline idles 
The major drawback of commit 7e34f4e4aa ("drm/i915/gen8+: Add RC6 CTX
corruption WA") is that it disables RC6 while Skylake (and friends) is
active, and we do not consider the GPU idle until all outstanding
requests have been retired and the engine switched over to the kernel
context. If userspace is idle, this task falls onto our background idle
worker, which only runs roughly once a second, meaning that userspace has
to have been idle for a couple of seconds before we enable RC6 again.
Naturally, this causes us to consume considerably more energy than
before as powersaving is effectively disabled while a display server
(here's looking at you Xorg) is running.

As execlists will get a completion event as each context is completed,
we can use this interrupt to queue a retire worker bound to this engine
to cleanup idle timelines. We will then immediately notice the idle
engine (without userspace intervention or the aid of the background
retire worker) and start parking the GPU. Thus during light workloads,
we will do much more work to idle the GPU faster...  Hopefully with
commensurate power saving!

v2: Watch context completions and only look at those local to the engine
when retiring to reduce the amount of excess work we perform.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112315
References: 7e34f4e4aa ("drm/i915/gen8+: Add RC6 CTX corruption WA")
References: 2248a28384 ("drm/i915/gen8+: Add RC6 CTX corruption WA")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191125105858.1718307-3-chris@chris-wilson.co.uk
2019-11-25 13:17:18 +00:00
..
amd Merge tag 'drm-next-5.5-2019-11-08' of git://people.freedesktop.org/~agd5f/linux into drm-next 2019-11-14 08:43:07 +10:00
arc Merge tag 'arcpgu-updates-2019.07.18' of github.com:abrodkin/linux into drm-next 2019-11-14 09:28:46 +10:00
arm Linux 5.4-rc7 2019-11-14 05:53:10 +10:00
armada
aspeed
ast drm/vram: drop DRM_VRAM_MM_FILE_OPERATIONS 2019-10-17 13:59:16 +02:00
atmel-hlcdc drm/atmel-hlcdc: Use swap() where appropriate 2019-10-11 18:22:50 +03:00
bochs drm/bochs: Replace prepare_fb()/cleanup_fb() with GEM VRAM helpers 2019-10-24 16:12:30 +02:00
bridge drm/bridge: tc358767: Use DP nomenclature 2019-10-23 18:20:05 +02:00
cirrus drm/simple-kms: Standardize arguments for callbacks 2019-10-24 13:55:56 +02:00
etnaviv Linux 5.4-rc7 2019-11-14 05:53:10 +10:00
exynos drm/exynos: Move static keyword to the front of declaration 2019-10-28 21:12:27 +09:00
fsl-dcu
gma500 drm: Spelling s/connet/connect/ 2019-10-24 17:59:45 +02:00
hisilicon drm/hisilicon/hibmc: Use GEM VRAM's prepare_fb() and cleanup_fb() helpers 2019-10-24 16:12:36 +02:00
i2c drm: tda998x: use cec_notifier_conn_(un)register 2019-10-21 14:23:25 +02:00
i810 drm/i810: Prevent underflow in ioctl 2019-10-04 17:04:05 +01:00
i915 drm/i915/gt: Schedule request retirement when timeline idles 2019-11-25 13:17:18 +00:00
imx Merge drm/drm-next into drm-misc-next 2019-10-03 16:38:50 +02:00
ingenic drm main pull for 5.4-rc1 2019-09-19 16:24:24 -07:00
lib
lima drm/lima: add __GFP_NOWARN flag to all dma_alloc_wc 2019-10-17 23:42:02 +08:00
mcde Merge drm/drm-next into drm-misc-next 2019-10-03 16:38:50 +02:00
mediatek Mediatek DRM next for Linux 5.5 - 2 2019-11-08 13:19:55 +10:00
meson drm/meson: Enable DRM InfoFrame support on GXL, GXM and G12A 2019-10-10 12:50:02 +02:00
mga
mgag200 drm/vram: drop DRM_VRAM_MM_FILE_OPERATIONS 2019-10-17 13:59:16 +02:00
msm drm/msm: fix memleak on release 2019-11-13 15:34:15 -05:00
mxsfb drm/mxsfb: Read bus flags from bridge if present 2019-10-14 22:19:32 +02:00
nouveau drm/dp_mst: Add basic topology reprobing when resuming 2019-10-24 14:29:48 -04:00
omapdrm Merge drm/drm-next into drm-misc-next 2019-10-23 11:14:11 -04:00
panel Linux 5.4-rc4 2019-10-23 12:10:05 +02:00
panfrost Linux 5.4-rc7 2019-11-14 05:53:10 +10:00
pl111 drm/simple-kms: Standardize arguments for callbacks 2019-10-24 13:55:56 +02:00
qxl drm/qxl: stop using TTM to call driver internal functions 2019-10-25 11:40:51 +02:00
r128
radeon Linux 5.4-rc7 2019-11-14 05:53:10 +10:00
rcar-du drm: rcar-du: lvds: Add r8a774b1 support 2019-10-16 00:28:32 +03:00
rockchip drm/rockchip: Avoid drm_dp_link helpers 2019-10-23 18:21:01 +02:00
savage
scheduler drm/sched: Avoid job cleanup if sched thread is parked. 2019-11-07 18:08:07 -05:00
selftests drm/mm: Use helpers for drm_mm_node booleans 2019-10-04 13:42:33 +01:00
shmobile
sis
sti drm: sti: fix W=1 warnings 2019-09-16 15:14:43 +02:00
stm drm/stm: dsi: higher pll out only in video burst mode 2019-09-16 15:14:10 +02:00
sun4i drm/sun4i: Enable DRM InfoFrame support on H6 2019-10-10 12:50:03 +02:00
tdfx
tegra drm/tegra: Unconditionally select IOMMU_IOVA 2019-11-01 10:49:29 +01:00
tilcdc drm-misc-next for 5.5: 2019-10-11 09:30:53 +10:00
tiny Merge tag 'topic/drm-mipi-dsi-dsc-updates-2019-11-11' of git://anongit.freedesktop.org/drm/drm-intel into drm-intel-next-queued 2019-11-20 15:54:38 +02:00
ttm drm/ttm, drm/vmwgfx: Use a configuration option for the TTM dma page pool 2019-11-14 08:41:23 +01:00
tve200
udl drm/connector: Share with non-atomic drivers the function to get the single encoder 2019-09-16 15:13:02 -07:00
v3d Linux 5.4-rc7 2019-11-14 05:53:10 +10:00
vboxvideo drm/vboxvideo: Use drm_gem_fb_create_with_dirty instead of drm_gem_fb_create 2019-10-29 13:10:07 +01:00
vc4 Merge drm/drm-next into drm-misc-next 2019-10-23 11:14:11 -04:00
vgem
via drivers/gpu/drm/via: convert put_page() to put_user_page*() 2019-09-24 15:54:08 -07:00
virtio drm/virtio: move byteorder handling into virtio_gpu_cmd_transfer_to_host_2d function 2019-10-22 11:34:03 +02:00
vkms drm/vkms: Remove duplicated include from vkms_drv.c 2019-10-10 15:45:35 +02:00
vmwgfx drm/vmwgfx: remove set but not used variable 'srf' 2019-11-14 08:41:36 +01:00
xen drm/simple-kms: Standardize arguments for callbacks 2019-10-24 13:55:56 +02:00
zte
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c Linux 5.4-rc7 2019-11-14 05:53:10 +10:00
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 Merge drm/drm-next into drm-misc-next 2019-10-03 16:38:50 +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_blend.c drm: two planes with the same zpos have undefined ordering 2019-10-09 20:04:55 +02:00
drm_bridge.c
drm_bufs.c
drm_cache.c drm/gpu: Fix Memory barrier without comment Issue 2019-10-25 09:35:06 +02:00
drm_client_modeset.c Merge drm/drm-next into drm-misc-next 2019-10-03 16:38:50 +02:00
drm_client.c
drm_color_mgmt.c
drm_connector.c drm: Add DisplayPort colorspace property creation function 2019-09-20 18:46:18 +03:00
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 Merge drm/drm-next into drm-misc-next 2019-10-03 16:38:50 +02:00
drm_crtc_internal.h
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: Fix return type of crc .poll() 2019-09-30 20:17:31 +03:00
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c
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/tegra: Move drm_dp_link helpers to Tegra DRM 2019-10-23 18:22:10 +02:00
drm_dp_mst_topology_internal.h
drm_dp_mst_topology.c drm/mst: Fix up u64 division 2019-11-06 15:20:37 -05:00
drm_drv.c Merge drm/drm-next into drm-misc-next 2019-10-03 16:38:50 +02:00
drm_dsc.c drm/dsc: Fix bogus cpu_to_be16() usage 2019-09-30 20:15:53 +03:00
drm_dumb_buffers.c
drm_edid_load.c drm/print: add drm_debug_enabled() 2019-10-02 16:28:55 +03:00
drm_edid.c Merge drm/drm-next into drm-misc-next 2019-10-23 11:14:11 -04:00
drm_encoder_slave.c
drm_encoder.c
drm_fb_cma_helper.c
drm_fb_helper.c drm/fb-helper: Remove drm_fb_helper_defio_init() and update docs 2019-10-28 10:07:54 +01:00
drm_file.c drm: Expose a method for creating anonymous struct file around drm_minor 2019-11-07 21:22:15 +00:00
drm_flip_work.c
drm_format_helper.c
drm_fourcc.c
drm_framebuffer.c
drm_gem_cma_helper.c
drm_gem_framebuffer_helper.c
drm_gem_shmem_helper.c drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap 2019-10-29 13:29:21 -05:00
drm_gem_ttm_helper.c drm/ttm: add drm_gem_ttm_mmap() 2019-10-17 13:59:16 +02:00
drm_gem_vram_helper.c drm/ttm: remove pointers to globals 2019-10-25 11:40:51 +02:00
drm_gem.c drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmap 2019-10-29 13:29:21 -05:00
drm_hashtab.c
drm_hdcp.c
drm_internal.h
drm_ioc32.c
drm_ioctl.c drm/atomic: Take the atomic toys away from X 2019-09-18 18:42:21 +02:00
drm_irq.c
drm_kms_helper_common.c
drm_lease.c
drm_legacy_misc.c
drm_legacy.h
drm_lock.c
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: Use simple right shift instead of double negation 2019-10-22 15:09:15 +02:00
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/doc: Drop misleading comment on drm_mode_config_cleanup 2019-10-23 11:00:41 +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_modeset_lock.c
drm_of.c drm: Remove redundant of_device_is_available check 2019-09-20 15:03:42 -04:00
drm_panel_orientation_quirks.c
drm_panel.c
drm_pci.c
drm_plane_helper.c
drm_plane.c
drm_prime.c drm: add mmap() to drm_gem_object_funcs 2019-10-17 13:59:16 +02:00
drm_print.c drm/print: add drm_debug_enabled() 2019-10-02 16:28:55 +03:00
drm_probe_helper.c drm/connector: Allow max possible encoders to attach to a connector 2019-09-16 15:13:53 -07:00
drm_property.c
drm_rect.c
drm_scatter.c
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: extend syncobj query ability v3 2019-10-18 12:24:56 +02:00
drm_sysfs.c
drm_trace_points.c
drm_trace.h
drm_vblank.c drm/drm_vblank: Change EINVAL by the correct errno 2019-10-08 18:43:26 -04:00
drm_vm.c
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 Merge drm/drm-next into drm-intel-next-queued 2019-11-15 13:17:39 +02:00
Makefile Merge drm/drm-next into drm-misc-next 2019-10-03 16:38:50 +02:00