Mario Kleiner 363926dc9e drm/radeon: Prevent races on pre DCE4 between flip submission and completion. ... Pre DCE4 hw doesn't have reliable pageflip completion interrupts, so instead polling for flip completion is used from within the vblank irq handler to complete page flips. This causes a race if pageflip ioctl is called close to vblank: 1. pageflip ioctl queues execution of radeon_flip_work_func. 2. vblank irq fires, radeon_crtc_handle_vblank checks for flip_status == FLIP_SUBMITTED finds none, no-ops. 3. radeon_flip_work_func runs inside vblank, decides to set flip_status == FLIP_SUBMITTED and programs the flip into hw. 4. hw executes flip immediately (because in vblank), but as 2 already happened, the flip completion routine only emits the flip completion event one refresh later -> wrong vblank count/timestamp for completion and no performance gain, as instead of delaying the flip until next vblank, we now delay the next flip by 1 refresh while waiting for the delayed flip completion event. Given we often don't gain anything due to this race, but lose precision, prevent the programmed flip from executing in vblank on pre DCE4 asics to avoid this race. On pre-AVIVO hw we can't program the hw for edge-triggered flips, they always execute anywhere in vblank. Therefore delay the actual flip programming until after vblank on pre-AVIVO. Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2016-10-04 11:15:58 -04:00
..
amd	Merge branch 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux into drm-next	2016-09-30 13:21:02 +10:00
arc	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
arm	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
armada
ast	drm: use drm_file to tag vm-bos	2016-09-19 11:22:08 +02:00
atmel-hlcdc	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
bochs	bugfixes for qemu (bochs, qxl and virtio-gpu) drm drivers	2016-09-28 13:23:07 +10:00
bridge	Merge tag 'topic/drm-misc-2016-09-25' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-09-28 10:28:23 +10:00
cirrus	drm: use drm_file to tag vm-bos	2016-09-19 11:22:08 +02:00
etnaviv	Merge branch 'drm-etnaviv-next' of git://git.pengutronix.de/git/lst/linux into drm-next	2016-09-28 11:24:05 +10:00
exynos	drm/exynos: g2d: simplify g2d_free_runqueue_node()	2016-10-01 00:39:42 +09:00
fsl-dcu	Merge tag 'topic/drm-misc-2016-09-25' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-09-28 10:28:23 +10:00
gma500	drm/gma500: remove unnecessary config_enabled() guard	2016-08-24 07:43:42 +02:00
hisilicon	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
i2c	Revert "drm/i2c: tda998x: don't register the connector"	2016-09-23 03:29:50 -07:00
i810
i915	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
imx	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
mediatek	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
mga
mgag200	drm: use drm_file to tag vm-bos	2016-09-19 11:22:08 +02:00
msm	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
nouveau	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
omapdrm	drm/atomic-helper: Add NO_DISABLE_AFTER_MODESET flag support for plane commit	2016-08-29 11:29:37 +02:00
panel	drm/panel: Add JDI LT070ME05000 WUXGA DSI Panel	2016-09-16 17:32:48 +02:00
qxl	bugfixes for qemu (bochs, qxl and virtio-gpu) drm drivers	2016-09-28 13:23:07 +10:00
r128
radeon	drm/radeon: Prevent races on pre DCE4 between flip submission and completion.	2016-10-04 11:15:58 -04:00
rcar-du	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
rockchip	Merge branch 'for-next' of ssh://people.freedesktop.org/~seanpaul/dogwood into drm-next	2016-09-28 11:22:27 +10:00
savage
shmobile
sis
sti	Merge branch 'sti-drm-next-2016-09-20' of https://github.com/vinceab/linux into drm-next	2016-09-28 11:14:58 +10:00
sun4i	Allwinner sun4i DRM fixes for 4.9	2016-09-28 11:23:15 +10:00
tdfx
tegra	drm/tegra: Changes for v4.9-rc1	2016-09-30 13:00:36 +10:00
tilcdc	Second attempt for 3rd drm/tilcdc pull request for v4.9.	2016-09-28 11:17:26 +10:00
ttm	drm/ttm: remove cpu_address member from ttm_tt	2016-09-16 15:53:05 -04:00
udl	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
vc4	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
vgem	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
via
virtio	drm: virtio: reinstate drm_virtio_set_busid()	2016-10-04 13:10:30 +10:00
vmwgfx	Merge branch 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux into drm-next	2016-09-20 06:17:38 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic.c	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
drm_atomic_helper.c	drm/atomic-helper: Fix sparse warnings	2016-09-19 16:44:36 +02:00
drm_auth.c
drm_blend.c	drm/doc: Polish plane composition property docs	2016-09-22 00:04:02 -07:00
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_context.c
drm_crtc.c	drm: Extract drm_color_mgmt.[hc]	2016-09-22 00:04:02 -07:00
drm_crtc_helper.c
drm_crtc_helper_internal.h	drm/fb-helper: Fix sparse warnings	2016-09-19 16:45:15 +02:00
drm_crtc_internal.h	drm: Extract drm_color_mgmt.[hc]	2016-09-22 00:04:02 -07:00
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c	Merge tag 'topic/drm-misc-2016-09-25' of git://anongit.freedesktop.org/drm-intel into drm-next	2016-09-28 10:28:23 +10:00
drm_dp_mst_topology.c
drm_drv.c	drm: Don't swallow error codes in drm_dev_alloc()	2016-09-22 04:03:48 -07:00
drm_edid.c
drm_edid_load.c
drm_encoder.c	drm: Fix typo in encoder docs	2016-09-21 13:33:50 +02:00
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c	Linux 4.8-rc8	2016-09-28 12:08:49 +10:00
drm_flip_work.c
drm_fops.c	drm: remove redundant drm_file->uid	2016-09-19 11:21:42 +02:00
drm_fourcc.c	drm: move drm_mode_legacy_fb_format to drm_fourcc.c	2016-08-29 15:37:28 +02:00
drm_framebuffer.c	drm: Extract drm_plane.[hc]	2016-09-22 00:01:56 -07:00
drm_gem.c	drm: use drm_file to tag vm-bos	2016-09-19 11:22:08 +02:00
drm_gem_cma_helper.c
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: remove redundant drm_file->uid	2016-09-19 11:21:42 +02:00
drm_internal.h	drm: drop obsolete drm_core.h	2016-09-19 13:57:38 +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_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_modeset_helper.c
drm_modeset_lock.c
drm_of.c
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.c	drm: Undo damage to page_flip_ioctl	2016-10-04 12:53:12 +10:00
drm_plane_helper.c
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_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 support for bridges	2016-08-29 09:15:37 +05:30
drm_sysfs.c	drm: drop obsolete drm_core.h	2016-09-19 13:57:38 +02:00
drm_trace.h
drm_trace_points.c
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: Extract drm_color_mgmt.[hc]	2016-09-22 00:04:02 -07:00