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dma-buf/drivers: make reserving a shared slot mandatory v4

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Audit all the users of dma_resv_add_excl_fence() and make sure they
reserve a shared slot also when only trying to add an exclusive fence.

This is the next step towards handling the exclusive fence like a
shared one.

v2: fix missed case in amdgpu
v3: and two more radeon, rename function
v4: add one more case to TTM, fix i915 after rebase

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220406075132.3263-2-christian.koenig@amd.com
This commit is contained in:
Christian König
2021-11-16 15:20:45 +01:00
parent 20b734c112
commit c8d4c18bfb
30 changed files with 184 additions and 122 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@@ -1388,6 +1388,14 @@ void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
bool shared)
{
struct dma_resv *resv = bo->tbo.base.resv;
int r;
r = dma_resv_reserve_fences(resv, 1);
if (r) {
/* As last resort on OOM we block for the fence */
dma_fence_wait(fence, false);
return;
}
if (shared)
dma_resv_add_shared_fence(resv, fence);