This is a note to let you know that I've just added the patch titled
drm/amdgpu: Let KFD sync with VM fences
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-let-kfd-sync-with-vm-fences.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 02560304d2493185cc0ae016411175cd195af5a5
Author: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Date: Mon Dec 18 16:17:23 2023 -0500
drm/amdgpu: Let KFD sync with VM fences
[ Upstream commit ec9ba4821fa52b5efdbc4cdf0a77497990655231 ]
Change the rules for amdgpu_sync_resv to let KFD synchronize with VM
fences on page table reservations. This fixes intermittent memory
corruption after evictions when using amdgpu_vm_handle_moved to update
page tables for VM mappings managed through render nodes.
Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
index 8ea6c49529e7..6a22bc41c205 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
@@ -241,7 +241,8 @@ int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync,
/* Never sync to VM updates either. */
if (fence_owner == AMDGPU_FENCE_OWNER_VM &&
- owner != AMDGPU_FENCE_OWNER_UNDEFINED)
+ owner != AMDGPU_FENCE_OWNER_UNDEFINED &&
+ owner != AMDGPU_FENCE_OWNER_KFD)
continue;
/* Ignore fences depending on the sync mode */
