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mirror_ubuntu-kernels/drivers/gpu/drm
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Ville Syrjälä b7a7053ab2 drm/i915: Workaround async flip + VT-d corruption on HSW/BDW 
On HSW/BDW with VT-d active the first tile row scanned out
after the first async flip of the frame often ends up corrupted.

Whether the corruption happens or not depends on the scanline
on which the async flip happens, but the behaviour seems very
consistent. Ie. the same set of scanlines (which are most scanlines)
always show the corruption. And another set of scanlines (far less
of them) never shows the corruption.

I discovered that disabling the fetch-stride stretching
feature cures the corruption. This is some kind of TLB related
prefetch thing AFAIK. We already disable it on SNB primary
planes due to a documented workaround. The hardware folks
indicated that disabling this should be fine, so let's go
with that.

And while we're here, let's document the relevant bits on all
pre-skl platforms.

Fixes: 2a636e240c ("drm/i915: Implement async flip for ivb/hsw")
Fixes: cda195f13a ("drm/i915: Implement async flips for bdw")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210220103303.3448-1-ville.syrjala@linux.intel.com
Reviewed-by: Karthik B S <karthik.b.s@intel.com>
2021-03-12 18:11:11 +02:00
..
amd Merge tag 'amd-drm-fixes-5.12-2021-03-03' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes 2021-03-05 11:13:22 +10:00
arc drm: Constify drm_driver in drivers that don't modify it 2021-01-05 07:20:36 +02:00
arm drm-misc-next for v5.12: 2021-01-07 10:46:32 +01:00
armada drm: automatic legacy gamma support 2020-12-15 15:46:03 +02:00
aspeed drm/<drivers>: Constify struct drm_driver 2020-11-06 10:31:26 +01:00
ast drm/ast: Remove references to struct drm_device.pdev 2021-01-06 15:38:30 +01:00
atmel-hlcdc drm: automatic legacy gamma support 2020-12-15 15:46:03 +02:00
bochs drm/bochs: Remove references to struct drm_device.pdev 2021-01-06 15:42:55 +01:00
bridge drm pull for 5.12-rc1 2021-02-21 14:44:44 -08:00
etnaviv Revert "drm/scheduler: Job timeout handler returns status (v3)" 2021-02-10 15:26:00 +01:00
exynos drm/exynos: Use FOLL_LONGTERM for g2d cmdlists 2021-01-12 14:14:38 +01:00
fsl-dcu drm/<drivers>: Constify struct drm_driver 2020-11-06 10:31:26 +01:00
gma500 platform-drivers-x86 for v5.12-1 2021-02-22 08:50:01 -08:00
hisilicon drm/hisilicon/hibmc: Remove hibmc_ttm.c 2021-01-15 10:06:00 +01:00
i2c sound updates for 5.9 2020-08-06 14:27:31 -07:00
i810 drm/i810: make i810_flush_queue() return void 2020-09-11 10:54:17 +02:00
i915 drm/i915: Workaround async flip + VT-d corruption on HSW/BDW 2021-03-12 18:11:11 +02:00
imx drm/imx: dw_hdmi-imx: depend on OF to fix randconfig compile tests on x86_64 2021-01-07 11:54:21 +01:00
ingenic drm: automatic legacy gamma support 2020-12-15 15:46:03 +02:00
kmb - Add default modes for connectors in unknown state 2021-01-07 13:02:57 +01:00
lib
lima Revert "drm/scheduler: Job timeout handler returns status (v3)" 2021-02-10 15:26:00 +01:00
mcde drm-misc-next for 5.11: 2020-12-15 10:21:48 +01:00
mediatek Mediatek DRM Next for Linux 5.12 2021-02-05 09:25:26 +10:00
meson drm/meson: dw-hdmi: Enable the iahb clock early enough 2020-11-20 16:41:10 +01:00
mga drm/mga/mga_ioc32: Fix some formatting issues in 'mga_compat_ioctl's header 2021-01-18 15:41:12 +01:00
mgag200 drm/mgag200: Remove references to struct drm_device.pdev 2021-01-06 15:43:13 +01:00
msm drm fixes for 5.12-rc1 + msm-next 2021-02-25 12:10:22 -08:00
mxsfb Short summary of fixes pull (less than what git shortlog provides): 2020-12-15 17:25:55 +01:00
nouveau Merge branch '00.00-inst' of git://github.com/skeggsb/linux into drm-fixes 2021-03-05 11:10:29 +10:00
omapdrm drm/omap: Delete useless kfree code 2020-12-15 17:19:54 +02:00
panel drm/panel: kd35t133: allow using non-continuous dsi clock 2021-02-25 10:18:45 +01:00
panfrost Revert "drm/scheduler: Job timeout handler returns status (v3)" 2021-02-10 15:26:00 +01:00
pl111 ARM updates for 5.12-rc1: 2021-02-22 14:27:07 -08:00
qxl pci-v5.12-changes 2021-02-25 09:56:08 -08:00
r128 drm/r128/r128_ioc32: Fix formatting issues in 'r128_compat_ioctl()'s header 2021-01-18 15:41:04 +01:00
radeon drm pull for 5.12-rc1 2021-02-21 14:44:44 -08:00
rcar-du - Add default modes for connectors in unknown state 2021-01-07 13:02:57 +01:00
rockchip drm/rockchip: Require the YTR modifier for AFBC 2021-02-25 10:18:45 +01:00
savage drm/savage/savage_bci: Remove set but never used 'aper_rsrc' and 'fb_rsrc' 2020-11-12 20:31:01 +01:00
scheduler Revert "drm/scheduler: Job timeout handler returns status (v3)" 2021-02-10 15:26:00 +01:00
selftests drm/selftests/test-drm_dp_mst_helper: Move 'sideband_msg_req_encode_decode' onto the heap 2020-11-17 20:08:29 +01:00
shmobile drm/<drivers>: Constify struct drm_driver 2020-11-06 10:31:26 +01:00
sis
sti drm: sti: Remove unnecessary drm_plane_cleanup() wrapper 2021-01-05 07:20:21 +02:00
stm drm: automatic legacy gamma support 2020-12-15 15:46:03 +02:00
sun4i drm pull for 5.12-rc1 2021-02-21 14:44:44 -08:00
tdfx drm: Constify drm_driver in drivers that don't modify it 2021-01-05 07:20:36 +02:00
tegra drm/tegra: Fix reference leak when pm_runtime_get_sync() fails 2021-01-15 17:24:51 +01:00
tidss drm/tidss: use devm_platform_ioremap_resource_byname 2020-11-10 14:34:16 +02:00
tilcdc doc: use KCFLAGS instead of EXTRA_CFLAGS to pass flags from command line 2021-02-22 13:59:10 -07:00
tiny drm/cirrus: Remove references to struct drm_device.pdev 2021-01-06 15:43:10 +01:00
ttm drm fixes for 5.12-rc1 + msm-next 2021-02-25 12:10:22 -08:00
tve200 drm/tve200: remove unused including <linux/version.h> 2020-12-30 11:25:05 +01:00
udl drm/shmem-helper: Removed drm_gem_shmem_create_object_cached() 2020-11-24 09:10:33 +01:00
v3d Revert "drm/scheduler: Job timeout handler returns status (v3)" 2021-02-10 15:26:00 +01:00
vboxvideo drm/vboxvideo: Remove references to struct drm_device.pdev 2021-01-06 15:44:04 +01:00
vc4 drm pull for 5.12-rc1 2021-02-21 14:44:44 -08:00
vgem drm/prime: split array import functions v4 2020-11-30 15:00:45 +01:00
via via/via_irq: use __func__ to replace string function name 2020-11-27 16:14:02 +01:00
virtio drm/virtio: fix an error code in virtio_gpu_init() 2021-02-09 17:16:57 +01:00
vkms drm/vkms: Fix missing kmalloc allocation failure check 2021-01-15 17:45:07 -03:00
vmwgfx drm/vmwgfx: Fix some memory leaks on errors 2021-02-09 17:16:57 +01:00
xen drm/prime: split array import functions v4 2020-11-30 15:00:45 +01:00
xlnx drm/xlnx: fix kmemleak by sending vblank_event in atomic_disable 2021-02-03 11:42:34 +01:00
zte drm: zte: Remove unnecessary drm_plane_cleanup() wrapper 2021-01-05 07:20:24 +02:00
drm_agpsupport.c drm: Upcast struct drm_device.dev to struct pci_device; replace pdev 2021-01-19 09:06:38 +01:00
drm_atomic_helper.c Linux 5.11-rc5 2021-01-25 14:35:44 +10:00
drm_atomic_state_helper.c drm: fix some kernel-doc markups 2020-11-16 20:48:20 +01:00
drm_atomic_uapi.c drm: fix oops in drm_atomic_set_crtc_for_connector 2020-11-16 09:56:55 +01:00
drm_atomic.c Merge branch 'akpm' (patches from Andrew) 2020-12-15 12:53:37 -08:00
drm_auth.c
drm_blend.c drm/doc: introduce new section for standard plane properties 2020-12-17 16:56:40 +01:00
drm_bridge_connector.c gpu/drm: delete same check in if condition 2020-11-02 14:04:53 +01:00
drm_bridge.c
drm_bufs.c drm: Upcast struct drm_device.dev to struct pci_device; replace pdev 2021-01-19 09:06:38 +01:00
drm_cache.c drm: Include <linux/mem_encrypt.h> in drm_cache.c 2021-01-14 09:42:31 +01:00
drm_client_modeset.c drm: replace drm_modeset_lock_all() in drm_client_modeset_dpms_legacy() 2021-02-09 17:16:57 +01:00
drm_client.c drm/client: Depend on GEM object kmap ref-counting 2020-11-24 09:27:54 +01:00
drm_color_mgmt.c drm: add legacy support for using degamma for gamma 2020-12-15 15:46:03 +02:00
drm_connector.c drm: fix some kernel-doc markups 2020-11-16 20:48:20 +01:00
drm_context.c
drm_crtc_helper_internal.h drm: remove drm_fb_helper_modinit 2021-02-08 12:20:38 +01:00
drm_crtc_helper.c
drm_crtc_internal.h drm: Introduce plane and CRTC scaling filter properties 2020-10-21 12:19:54 +03:00
drm_crtc.c drm/imx: fixes and drm managed resources 2021-01-07 11:24:50 +01:00
drm_damage_helper.c
drm_debugfs_crc.c drm/crc-debugfs: Fix memleak in crc_control_write 2020-09-01 09:45:44 +02:00
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor() 2020-10-15 13:58:54 -04:00
drm_dp_cec.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c - HDCP 2.2 and HDCP 1.4 Gen12 DP MST support (Anshuman) 2021-01-29 17:05:15 +10:00
drm_dp_mst_topology_internal.h
drm_dp_mst_topology.c drm pull for 5.12-rc1 2021-02-21 14:44:44 -08:00
drm_drv.c drm: Unamp the entire device address space on device unplug 2021-01-19 10:22:14 +01:00
drm_dsc.c drm/dsc: add helper for calculating rc buffer size from DPCD 2020-12-10 10:49:47 +02:00
drm_dumb_buffers.c drm: Don't export the drm_gem_dumb_destroy() function 2021-01-05 07:20:25 +02:00
drm_edid_load.c
drm_edid.c drm: Upcast struct drm_device.dev to struct pci_device; replace pdev 2021-01-19 09:06:38 +01:00
drm_encoder_slave.c
drm_encoder.c drm: add drmm_encoder_alloc() 2021-01-04 12:59:33 +01:00
drm_fb_cma_helper.c
drm_fb_helper.c Modules updates for v5.12 2021-02-23 10:15:33 -08:00
drm_file.c drm/drm_vblank: set the dma-fence timestamp during send_vblank_event 2021-02-24 21:05:54 +05:30
drm_flip_work.c
drm_format_helper.c
drm_fourcc.c drm/fourcc: Add AXBXGXRX106106106106 format 2020-10-20 20:51:42 +01:00
drm_framebuffer.c drm: fix some kernel-doc markups 2020-11-16 20:48:20 +01:00
drm_gem_cma_helper.c drm/cma-helper: Implement mmap as GEM CMA object functions 2020-11-30 13:38:27 +01:00
drm_gem_framebuffer_helper.c
drm_gem_shmem_helper.c drm/shmem-helper: Removed drm_gem_shmem_create_object_cached() 2020-11-24 09:10:33 +01:00
drm_gem_ttm_helper.c drm/ttm: Add vmap/vunmap to TTM and TTM GEM helpers 2020-11-09 09:17:36 +01:00
drm_gem_vram_helper.c drm/vram-helper: Reuse existing page mappings in vmap 2021-01-19 15:37:14 +01:00
drm_gem.c drm: Set vm_ops to GEM object's values during mmap 2021-01-18 10:37:26 +01:00
drm_hashtab.c
drm_hdcp.c
drm_internal.h drm: Don't export the drm_gem_dumb_destroy() function 2021-01-05 07:20:25 +02:00
drm_ioc32.c
drm_ioctl.c drm: Give irq_by_busid drm_legacy_ prefix 2020-10-21 18:05:11 +02:00
drm_irq.c drm: Upcast struct drm_device.dev to struct pci_device; replace pdev 2021-01-19 09:06:38 +01:00
drm_kms_helper_common.c drm: remove drm_fb_helper_modinit 2021-02-08 12:20:38 +01:00
drm_lease.c
drm_legacy_misc.c
drm_legacy.h drm: Merge CONFIG_DRM_VM into CONFIG_DRM_LEGACY 2021-01-13 14:22:37 +01:00
drm_lock.c
drm_managed.c drm/dev: Remove drm_dev_init 2020-09-21 10:45:08 +02:00
drm_memory.c drm: Implement drm_need_swiotlb() in drm_cache.c 2021-01-13 14:22:29 +01:00
drm_mipi_dbi.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_mipi_dsi.c
drm_mm.c
drm_mode_config.c drm-misc-next for v5.12: 2021-01-07 13:40:20 +01:00
drm_mode_object.c drm: fix some kernel-doc markups 2020-11-16 20:48:20 +01:00
drm_modes.c drm/modes: Switch to 64bit maths to avoid integer overflow 2021-01-14 19:37:53 +02:00
drm_modeset_helper.c
drm_modeset_lock.c
drm_of.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_panel_orientation_quirks.c drm: Added orientation quirk for ASUS tablet model T103HAF 2020-08-04 11:45:23 +02:00
drm_panel.c drm/panel: Add helper for reading DT rotation 2020-08-16 17:12:18 +02:00
drm_pci.c drm: Upcast struct drm_device.dev to struct pci_device; replace pdev 2021-01-19 09:06:38 +01:00
drm_plane_helper.c
drm_plane.c Linux 5.11-rc5 2021-01-25 14:35:44 +10:00
drm_prime.c drm: Set vm_ops to GEM object's values during mmap 2021-01-18 10:37:26 +01:00
drm_print.c
drm_probe_helper.c drm: Add default modes for connectors in unknown state 2021-01-05 07:19:50 +02:00
drm_property.c
drm_rect.c
drm_scatter.c
drm_scdc_helper.c drm: fix some kernel-doc markups 2020-11-16 20:48:20 +01:00
drm_self_refresh_helper.c
drm_simple_kms_helper.c drm/simple_kms_helper: add drmm_simple_encoder_alloc() 2021-01-04 12:59:33 +01:00
drm_syncobj.c drm/syncobj: Fix use-after-free 2021-01-20 10:28:39 +01:00
drm_sysfs.c
drm_trace_points.c
drm_trace.h
drm_vblank_work.c This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
drm_vblank.c drm/drm_vblank: set the dma-fence timestamp during send_vblank_event 2021-02-24 21:05:54 +05:30
drm_vm.c drm: Upcast struct drm_device.dev to struct pci_device; replace pdev 2021-01-19 09:06:38 +01:00
drm_vma_manager.c
drm_writeback.c
Kconfig kconfig for kcmp syscall 2021-02-22 17:15:30 -08:00
Makefile drm: Merge CONFIG_DRM_VM into CONFIG_DRM_LEGACY 2021-01-13 14:22:37 +01:00