Commit ec9ba482 authored by Felix Kuehling's avatar Felix Kuehling Committed by Alex Deucher
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drm/amdgpu: Let KFD sync with VM fences 



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: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent efae5a9e

drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c

+2 −1
Original line number Diff line number Diff line
@@ -191,7 +191,8 @@ static bool amdgpu_sync_test_fence(struct amdgpu_device *adev, 


	/* 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)

		return false;



	/* Ignore fences depending on the sync mode */