Pierre-Eric Pelloux-Prayer 89a9389ad7 drm/amdgpu: fix sync handling in amdgpu_dma_buf_move_notify ... [ Upstream commit b18fc0ab837381c1a6ef28386602cd888f2d9edf ] Invalidating a dmabuf will impact other users of the shared BO. In the scenario where process A moves the BO, it needs to inform process B about the move and process B will need to update its page table. The commit fixes a synchronisation bug caused by the use of the ticket: it made amdgpu_vm_handle_moved behave as if updating the page table immediately was correct but in this case it's not. An example is the following scenario, with 2 GPUs and glxgears running on GPU0 and Xorg running on GPU1, on a system where P2P PCI isn't supported: glxgears: export linear buffer from GPU0 and import using GPU1 submit frame rendering to GPU0 submit tiled->linear blit Xorg: copy of linear buffer The sequence of jobs would be: drm_sched_job_run # GPU0, frame rendering drm_sched_job_queue # GPU0, blit drm_sched_job_done # GPU0, frame rendering drm_sched_job_run # GPU0, blit move linear buffer for GPU1 access # amdgpu_dma_buf_move_notify -> update pt # GPU0 It this point the blit job on GPU0 is still running and would likely produce a page fault. Cc: stable@vger.kernel.org Fixes: a448cb003e ("drm/amdgpu: implement amdgpu_gem_prime_move_notify v2") Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2026-03-04 07:21:29 -05:00
..
adp	…
amd	drm/amdgpu: fix sync handling in amdgpu_dma_buf_move_notify	2026-03-04 07:21:29 -05:00
arm	…
armada	…
aspeed	…
ast	drm/ast: Clear preserved bits from register output value	2025-10-30 20:44:44 +01:00
atmel-hlcdc	drm/atmel-hlcdc: fix use-after-free of drm_crtc_commit after release	2026-03-04 07:20:02 -05:00
bridge	drm/bridge: anx7625: Fix invalid EDID size	2026-03-04 07:21:10 -05:00
ci	drm/ci: disable broken MR check in sanity job	2025-10-16 07:49:06 -07:00
clients	drm/client: fix MODULE_PARM_DESC string for "active"	2025-11-13 14:15:24 +01:00
display	drm/display/dp_mst: Add protection against 0 vcpi	2026-03-04 07:19:45 -05:00
etnaviv	drm/etnaviv: fix flush sequence logic	2025-10-27 22:47:09 +01:00
exynos	drm/exynos: vidi: fix to avoid directly dereferencing user pointer	2026-02-26 14:59:47 -08:00
fsl-dcu	…
gma500	drm/gma500: Remove unused helper psb_fbdev_fb_setcolreg()	2026-01-08 10:17:16 +01:00
gud	drm/gud: fix NULL fb and crtc dereferences on USB disconnect	2026-01-23 11:21:13 +01:00
hisilicon	drm/hisilicon/hibmc: Adding reset colorbar cfg in dp init.	2026-02-26 14:59:13 -08:00
hyperv	…
i915	drm/i915/quirks: Fix device id for QUIRK_EDP_LIMIT_RATE_HBR2 entry	2026-03-04 07:21:26 -05:00
imagination	drm/imagination: Wait for FW trace update command completion	2026-01-30 10:32:17 +01:00
imx	drm/imx/tve: fix probe device leak	2026-02-06 16:57:43 +01:00
ingenic	…
kmb	…
lib	…
lima	…
logicvc	…
loongson	…
mcde	…
mediatek	drm/mediatek: dpi: Find next bridge during probe	2026-01-30 10:32:17 +01:00
meson	…
mgag200	drm/mgag200: fix mgag200_bmc_stop_scanout()	2026-02-11 13:41:58 +01:00
msm	drm/msm/dp: Avoid division by zero in msm_dp_ctrl_config_msa()	2026-02-26 14:59:13 -08:00
mxsfb	…
nouveau	nouveau/gsp: fix suspend/resume regression on r570 firmware	2026-02-11 13:41:43 +01:00
nova	drm: nova: depend on CONFIG_64BIT	2026-01-08 10:16:41 +01:00
omapdrm	…
panel	drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove()	2026-03-04 07:19:56 -05:00
panfrost	…
panthor	drm/panthor: fix for dma-fence safe access rules	2026-03-04 07:20:53 -05:00
pl111	drm/pl111: Fix error handling in pl111_amba_probe	2026-01-17 16:35:13 +01:00
qxl	…
radeon	drm/radeon: Add HAINAN clock adjustment	2026-03-04 07:20:41 -05:00
renesas	drm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels	2026-03-04 07:19:59 -05:00
rockchip	drm/rockchip: dw_hdmi_qp: Fix RK3576 HPD interrupt handling	2026-02-26 14:59:13 -08:00
scheduler	drm/sched: Fix deadlock in drm_sched_entity_kill_jobs_cb	2025-11-05 12:29:52 +01:00
sitronix	…
solomon	…
sprd	…
sti	drm: sti: fix device leaks at component probe	2025-11-24 13:56:16 +01:00
stm	…
sun4i	…
sysfb	drm/sysfb: Remove duplicate declarations	2026-01-23 11:21:31 +01:00
tegra	drm/tegra: hdmi: sor: Fix error: variable ‘j’ set but not used	2026-02-19 16:31:32 +01:00
tests	drm/tests: shmem: Hold reservation lock around purge	2026-03-04 07:20:55 -05:00
tidss	drm/tidss: Fix enable/disable order	2026-01-17 16:35:13 +01:00
tilcdc	drm/tilcdc: Fix removal actions in case of failed probe	2026-01-08 10:17:18 +01:00
tiny	drm/tiny: pixpaper: add explicit dependency on MMU	2025-11-06 13:47:29 +01:00
ttm	drm/ttm: Avoid NULL pointer deref for evicted BOs	2026-01-08 10:17:18 +01:00
tve200	…
tyr	drm/tyr: fix register name in error print	2026-03-04 07:21:08 -05:00
udl	…
v3d	drm/v3d: Set DMA segment size to avoid debug warnings	2026-03-04 07:19:50 -05:00
vboxvideo	…
vc4	…
vgem	drm/vgem-fence: Fix potential deadlock on release	2025-12-18 14:02:26 +01:00
virtio	…
vkms	…
vmwgfx	drm/vmwgfx: Fix an error return check in vmw_compat_shader_add()	2026-01-23 11:21:32 +01:00
xe	drm/xe: Fix ggtt fb alignment	2026-03-04 07:20:55 -05:00
xen	…
xlnx	…
Kconfig	drm, drm/xe: Fix xe userptr in the absence of CONFIG_DEVICE_PRIVATE	2026-01-30 10:32:15 +01:00
Kconfig.debug	…
Makefile	drm, drm/xe: Fix xe userptr in the absence of CONFIG_DEVICE_PRIVATE	2026-01-30 10:32:15 +01:00
drm_atomic.c	…
drm_atomic_helper.c	drm/atomic-helper: Export and namespace some functions	2026-01-17 16:35:13 +01:00
drm_atomic_state_helper.c	…
drm_atomic_uapi.c	…
drm_auth.c	…
drm_blend.c	…
drm_bridge.c	…
drm_bridge_helper.c	…
drm_buddy.c	drm/buddy: Prevent BUG_ON by validating rounded allocation	2026-03-04 07:21:10 -05:00
drm_cache.c	…
drm_client.c	…
drm_client_event.c	…
drm_client_modeset.c	…
drm_color_mgmt.c	…
drm_connector.c	…
drm_crtc.c	…
drm_crtc_helper.c	…
drm_crtc_helper_internal.h	…
drm_crtc_internal.h	…
drm_damage_helper.c	…
drm_debugfs.c	…
drm_debugfs_crc.c	…
drm_displayid.c	drm/displayid: add quirk to ignore DisplayID checksum errors	2026-01-08 10:16:42 +01:00
drm_displayid_internal.h	drm/displayid: add quirk to ignore DisplayID checksum errors	2026-01-08 10:16:42 +01:00
drm_draw.c	drm/draw: fix color truncation in drm_draw_fill24	2025-10-14 09:25:10 +02:00
drm_draw_internal.h	drm/draw: fix color truncation in drm_draw_fill24	2025-10-14 09:25:10 +02:00
drm_drv.c	…
drm_dumb_buffers.c	…
drm_edid.c	…
drm_edid_load.c	…
drm_eld.c	…
drm_encoder.c	…
drm_exec.c	…
drm_fb_dma_helper.c	…
drm_fb_helper.c	drm, fbcon, vga_switcheroo: Avoid race condition in fbcon setup	2025-11-25 09:08:32 +01:00
drm_fbdev_dma.c	…
drm_fbdev_shmem.c	…
drm_fbdev_ttm.c	…
drm_file.c	…
drm_flip_work.c	…
drm_format_helper.c	…
drm_format_internal.h	…
drm_fourcc.c	…
drm_framebuffer.c	…
drm_gem.c	drm: Do not allow userspace to trigger kernel warnings in drm_gem_change_handle_ioctl()	2026-02-06 16:57:42 +01:00
drm_gem_atomic_helper.c	drm/sysfb: Do not dereference NULL pointer in plane reset	2025-10-26 17:09:56 +01:00
drm_gem_dma_helper.c	…
drm_gem_framebuffer_helper.c	…
drm_gem_shmem_helper.c	drm/tests: shmem: Hold reservation lock around purge	2026-03-04 07:20:55 -05:00
drm_gem_ttm_helper.c	…
drm_gem_vram_helper.c	…
drm_gpusvm.c	drm/gpusvm, drm/xe: Fix userptr to not allow device private pages	2025-10-02 21:57:52 -07:00
drm_gpuvm.c	…
drm_internal.h	…
drm_ioc32.c	…
drm_ioctl.c	…
drm_kms_helper_common.c	…
drm_lease.c	…
drm_managed.c	…
drm_mipi_dbi.c	…
drm_mipi_dsi.c	…
drm_mm.c	…
drm_mode_config.c	…
drm_mode_object.c	…
drm_modes.c	…
drm_modeset_helper.c	…
drm_modeset_lock.c	…
drm_of.c	…
drm_pagemap.c	drm/pagemap, drm/xe: Ensure that the devmem allocation is idle before use	2026-01-08 10:17:20 +01:00
drm_panel.c	…
drm_panel_backlight_quirks.c	…
drm_panel_orientation_quirks.c	…
drm_panic.c	drm/panic: Fix 24bit pixel crossing page boundaries	2025-10-21 11:28:03 +02:00
drm_panic_qr.rs	…
drm_pci.c	…
drm_plane.c	drm/plane: Fix IS_ERR() vs NULL check in drm_plane_create_hotspot_properties()	2025-12-18 14:03:36 +01:00
drm_plane_helper.c	…
drm_prime.c	…
drm_print.c	…
drm_privacy_screen.c	…
drm_privacy_screen_x86.c	…
drm_probe_helper.c	…
drm_property.c	drm: Account property blob allocations to memcg	2026-03-04 07:19:59 -05:00
drm_rect.c	…
drm_self_refresh_helper.c	…
drm_simple_kms_helper.c	…
drm_suballoc.c	…
drm_syncobj.c	…
drm_sysfs.c	…
drm_trace.h	…
drm_trace_points.c	…
drm_vblank.c	…
drm_vblank_work.c	…
drm_vma_manager.c	…
drm_writeback.c	…