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

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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: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Prike Liang
2025-04-23 20:26:48 +08:00
committed by Alex Deucher
parent 6edc89645c
commit 926c79ad6e
1 changed files with 2 additions and 3 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
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@@ -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);