linux_dsm_epyc7002/drivers/gpu/drm
Chris Wilson b887d61546 drm/i915: Retire requests along rings
In the next patch, rings are the central timeline as requests may jump
between engines. Therefore in the future as we retire in order along the
engine timeline, we may retire out-of-order within a ring (as the ring now
occurs along multiple engines), leading to much hilarity in miscomputing
the position of ring->head.

As an added bonus, retiring along the ring reduces the penalty of having
one execlists client do cleanup for another (old legacy submission
shares a ring between all clients). The downside is that slow and
irregular (off the critical path) process of cleaning up stale requests
after userspace becomes a modicum less efficient.

In the long run, it will become apparent that the ordered
ring->request_list matches the ring->timeline, a fun challenge for the
future will be unifying the two lists to avoid duplication!

v2: We need both engine-order and ring-order processing to maintain our
knowledge of where individual rings have completed upto as well as
knowing what was last executing on any engine. And finally by decoupling
retiring the contexts on the engine and the timelines along the rings,
we do have to keep a reference to the context on each request
(previously it was guaranteed by the context being pinned).

v3: Not just a reference to the context, but we need to keep it pinned
as we manipulate the rings; i.e. we need a pin for both the manipulation
of the engine state during its retirements, and a separate pin for the
manipulation of the ring state.

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/20180430131503.5375-3-chris@chris-wilson.co.uk
2018-04-30 16:01:18 +01:00
..
amd Merge tag 'drm-amdkfd-next-2018-03-27' of git://people.freedesktop.org/~gabbayo/linux into drm-next 2018-03-28 14:49:19 +10:00
arc drm/arcpgu: remove drm_encoder_slave 2018-01-30 18:05:25 +01:00
arm drm: mali-dp: Add YUV->RGB conversion support for video layers 2018-03-14 11:41:01 +00:00
armada drm: Don't pass clip to drm_atomic_helper_check_plane_state() 2018-03-05 20:48:25 +02:00
ast Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
atmel-hlcdc drm/atmel-hlcdc: Use the alpha format field in drm_format_info 2018-01-29 12:08:37 +01:00
bochs drm/ttm: add bo as parameter to the ttm_tt_create callback 2018-03-14 14:38:27 -05:00
bridge drm/bridge: dw-hdmi: Remove unused hdmi_enable_overflow_interrupts() 2018-03-15 09:45:11 +01:00
cirrus Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
etnaviv drm/etnaviv: bump HW job limit to 4 2018-03-22 11:08:48 +01:00
exynos Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
fsl-dcu drm/fsl-dcu: Use drm_mode_config_helper_suspend/resume() 2017-12-05 13:46:41 +01:00
gma500 pci-v4.16-changes 2018-02-06 09:59:40 -08:00
hisilicon drm/ttm: add bo as parameter to the ttm_tt_create callback 2018-03-14 14:38:27 -05:00
i2c drm/i2c: tda998x: Remove duplicate NULL check 2018-01-18 16:24:38 +02:00
i810
i915 drm/i915: Retire requests along rings 2018-04-30 16:01:18 +01:00
imx Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mediatek drm: Don't pass clip to drm_atomic_helper_check_plane_state() 2018-03-05 20:48:25 +02:00
meson Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
mga
mgag200 drm/ttm: add bo as parameter to the ttm_tt_create callback 2018-03-14 14:38:27 -05:00
msm Merge tag 'drm-msm-next-2018-03-20' of git://people.freedesktop.org/~robclark/linux into drm-next 2018-03-21 14:06:00 +10:00
mxsfb drm/mxsfb: Do not use deprecated drm_driver.{enable|disable)_vblank 2018-02-22 17:58:59 +01:00
nouveau Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
omapdrm drm/omap: fix compile error when DPI is disabled 2018-03-14 10:39:50 +02:00
panel drm/panel: rm68200: Add backlight dependency 2018-03-14 11:51:24 +01:00
pl111 drm/pl111: Use max memory bandwidth for resolution 2018-03-07 23:14:24 +01:00
qxl Merge airlied/drm-next into drm-misc-next 2018-03-21 09:40:55 -04:00
r128 r128: don't open-code memdup_user() 2017-12-27 19:00:09 -05:00
radeon Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
rcar-du drm-misc-next for 4.17: 2018-03-14 10:59:16 +10:00
rockchip drm/rockchip: cdn-dp: remove the DP phy switch 2018-03-16 11:51:11 +01:00
savage
scheduler treewide/trivial: Remove ';;$' typo noise 2018-02-22 10:59:33 +01:00
selftests Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
shmobile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
sis
sti drm/sti: Use drm_fb_cma_fbdev_init/fini() 2017-12-08 14:47:41 +01:00
stm drm/stm: check pitch and size calculations even if !CONFIG_MMU 2018-02-23 09:37:12 +01:00
sun4i Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
tdfx
tegra Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
tilcdc drm/tilcdc: tilcdc_panel: Rename device from "panel" to "tilcdc-panel" 2018-02-28 11:48:25 +02:00
tinydrm tinydrm: add backlight dependency 2018-02-28 15:08:56 -05:00
ttm drm/ttm: Export the ttm_k[un]map_atomic_prot API. 2018-03-22 11:10:06 +01:00
tve200 drm/tve200: Do not use deprecated drm_driver.{enable|disable)_vblank 2018-02-22 17:58:59 +01:00
udl drm: udl: Properly check framebuffer mmap offsets 2018-03-22 07:59:01 +01:00
vc4 drm/vc4_validate: Remove VLA usage 2018-03-16 15:51:52 -07:00
vgem treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
via Merge tag 'drm-misc-next-2017-11-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-12-04 05:42:49 +10:00
virtio Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
vmwgfx Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
zte drm: Don't pass clip to drm_atomic_helper_check_plane_state() 2018-03-05 20:48:25 +02:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c drm: Remove now pointelss blob->data casts 2018-03-16 15:44:01 +02:00
drm_atomic.c drm/atomic: Print debug message on atomic check failure 2018-04-24 18:58:51 -04:00
drm_auth.c drm: Check for lessee in DROP_MASTER ioctl 2018-01-31 09:27:51 +01:00
drm_blend.c drm/docs: Align layout of optional plane blending properties 2018-02-20 12:10:46 +01:00
drm_bridge.c
drm_bufs.c drm: dma_bufs: Fixed checkpatch issues 2018-03-19 09:31:20 -04:00
drm_cache.c
drm_color_mgmt.c drm/atomic: Include color encoding/range in plane state dump 2018-03-02 14:41:21 +02:00
drm_connector.c drm/docs: Document "scaling mode" property better 2018-02-20 12:10:46 +01:00
drm_context.c
drm_crtc_helper_internal.h
drm_crtc_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_crtc_internal.h drm/atomic: Include color encoding/range in plane state dump 2018-03-02 14:41:21 +02:00
drm_crtc.c drm: Check that the plane supports the request format+modifier combo 2018-02-26 16:29:47 +02:00
drm_debugfs_crc.c drm/crc: Add support for polling on the data fd. 2018-02-05 13:22:44 +01:00
drm_debugfs.c drm/debugfs: Fix framebuffer debugfs file init 2017-11-14 11:08:17 +02:00
drm_dma.c
drm_dp_aux_dev.c Pass mode to wait_on_atomic_t() action funcs and provide default actions 2017-11-13 15:38:16 +00:00
drm_dp_dual_mode_helper.c drm: Add retries for lspcon mode detection 2017-10-13 12:13:54 +03:00
drm_dp_helper.c drm/dp: Add HBR3 support in existing DRM DP helpers 2018-01-26 13:36:53 +02:00
drm_dp_mst_topology.c drm: NULL pointer dereference [null-pointer-deref] (CWE 476) problem 2018-02-19 12:58:20 +01:00
drm_drv.c drm: NULL pointer dereference [null-pointer-deref] (CWE 476) problem 2018-03-06 08:14:16 +01:00
drm_dumb_buffers.c
drm_edid_load.c
drm_edid.c Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
drm_encoder_slave.c
drm_encoder.c drm: Warn if plane/crtc/encoder/connector index exceeds our 32bit bitmasks 2018-01-29 18:46:53 +02:00
drm_fb_cma_helper.c drm/cma-helper: Add drm_fb_cma_fbdev_init/fini() 2017-12-08 14:27:47 +01:00
drm_fb_helper.c drm: Remove now pointelss blob->data casts 2018-03-16 15:44:01 +02:00
drm_file.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
drm_flip_work.c
drm_fourcc.c drm/fourcc: Add a alpha field to drm_format_info 2018-01-29 12:07:47 +01:00
drm_framebuffer.c Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
drm_gem_cma_helper.c drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1 2017-11-15 18:14:46 +01:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: drm_gem_fbdev_fb_create() make funcs optional 2017-12-08 14:26:00 +01:00
drm_gem.c drm: Use idr_init_base(1) when using id==0 for invalid 2018-02-19 12:21:24 +00:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h Merge airlied/drm-next into drm-misc-next 2017-11-21 14:17:56 +01:00
drm_ioc32.c
drm_ioctl.c drm: Print the pid when debug logging an ioctl error. 2018-02-10 22:23:10 +00:00
drm_irq.c
drm_kms_helper_common.c
drm_lease.c drm: Fix kerneldoc warnings for drm_lease 2018-02-19 10:49:59 +01:00
drm_legacy.h
drm_lock.c
drm_memory.c drm: fix drm_get_max_iomem type mismatch 2018-02-22 11:18:58 -05:00
drm_mipi_dsi.c drm/dsi: Fix improper use of mipi_dsi_device_transfer() return value 2018-01-16 17:10:14 -05:00
drm_mm.c Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
drm_mode_config.c Linux 4.15-rc4 2017-12-19 21:37:24 +10:00
drm_mode_object.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_modes.c drm: Fix uabi regression by allowing garbage mode->type from userspace 2018-03-23 13:51:12 +02:00
drm_modeset_helper.c drm/modeset-helper: Add simple modeset suspend/resume helpers 2017-11-30 18:18:08 +01:00
drm_modeset_lock.c drm/atomic: Call ww_acquire_done after drm_modeset_lock_all 2018-03-05 10:35:32 +01:00
drm_of.c drm: of: simplify component probe code 2018-03-06 14:05:00 +05:30
drm_panel_orientation_quirks.c drm: Include the header with the prototype for drm_get_panel_orientation_quirk() 2018-02-26 17:39:59 +02:00
drm_panel.c
drm_pci.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_plane_helper.c drm: Don't pass clip to drm_atomic_helper_check_plane_state() 2018-03-05 20:48:25 +02:00
drm_plane.c Merge airlied/drm-next into drm-misc-next 2018-03-21 09:40:55 -04:00
drm_prime.c drm/prime: make the pages array optional for drm_prime_sg_to_page_addr_arrays 2018-03-06 12:24:52 -05:00
drm_print.c drm: Reduce object size of DRM_DEV_<LEVEL> uses 2018-03-19 15:15:42 +01:00
drm_probe_helper.c Linux 4.16-rc7 2018-03-28 14:30:41 +10:00
drm_property.c Revert "drm: Use a flexible array member for blob property data" 2018-03-16 15:44:01 +02:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_simple_kms_helper.c drm: Don't pass clip to drm_atomic_helper_check_plane_state() 2018-03-05 20:48:25 +02:00
drm_syncobj.c drm: Use idr_init_base(1) when using id==0 for invalid 2018-02-19 12:21:24 +00:00
drm_sysfs.c
drm_trace_points.c
drm_trace.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
drm_vblank.c Merge tag 'drm-intel-next-2018-03-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2018-03-14 14:53:01 +10:00
drm_vm.c
drm_vma_manager.c drm/drm_vma_manager.c: Remove useless goto statement 2017-11-02 10:44:08 +01:00
Kconfig Fixes for 4.16: 2018-01-25 11:42:25 +10:00
Makefile drm: fix gpu scheduler link order 2018-01-24 15:49:04 -05:00