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drm/amdgpu: Let KFD sync with VM fences

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[ 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@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>
This commit is contained in:
Felix Kuehling
2023-12-18 16:17:23 -05:00
committed by Greg Kroah-Hartman
parent e90c8f9785
commit 48bb06f8e3
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
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@@ -241,7 +241,8 @@ int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync,
/* Never sync to VM updates either. */ /* Never sync to VM updates either. */
if (fence_owner == AMDGPU_FENCE_OWNER_VM && if (fence_owner == AMDGPU_FENCE_OWNER_VM &&
owner != AMDGPU_FENCE_OWNER_UNDEFINED) owner != AMDGPU_FENCE_OWNER_UNDEFINED &&
owner != AMDGPU_FENCE_OWNER_KFD)
continue; continue;
/* Ignore fences depending on the sync mode */ /* Ignore fences depending on the sync mode */