Commit 926c79ad authored by Prike Liang's avatar Prike Liang Committed by Alex Deucher
Browse files

drm/amdgpu: promote the implicit sync to the dependent read fences 



The driver doesn't want to implicitly sync on the DMA_RESV_USAGE_BOOKKEEP
usage fences, and the BOOKEEP fences should be synced explicitly. So, as
the VM implicit syncing only need to return and sync the dependent read
fences.

Signed-off-by: default avatarPrike Liang <Prike.Liang@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6edc8964

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

+2 −3
Original line number Diff line number Diff line
@@ -249,9 +249,8 @@ int amdgpu_sync_resv(struct amdgpu_device *adev, struct amdgpu_sync *sync, 


	if (resv == NULL)

		return -EINVAL;



	/* TODO: Use DMA_RESV_USAGE_READ here */

	dma_resv_for_each_fence(&cursor, resv, DMA_RESV_USAGE_BOOKKEEP, f) {

	/* Implicitly sync only to KERNEL, WRITE and READ */

	dma_resv_for_each_fence(&cursor, resv, DMA_RESV_USAGE_READ, f) {

		dma_fence_chain_for_each(f, f) {

			struct dma_fence *tmp = dma_fence_chain_contained(f);