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drm/amdgpu: Use allowed_domains for pinning dmabufs

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When determining the domains for pinning DMABufs, filter allowed_domains
and fail with a warning if VRAM is forbidden and GTT is not an allowed
domain.

Fixes: f5e7fabd1f ("drm/amdgpu: allow pinning DMA-bufs into VRAM if all importers can do P2P")
Suggested-by: Christian König <christian.koenig@amd.com>
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>
This commit is contained in:
Felix Kuehling
2025-04-17 10:23:15 -04:00
committed by Alex Deucher
parent cb808ab833
commit 3940796a6e
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
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@@ -77,7 +77,7 @@ static int amdgpu_dma_buf_pin(struct dma_buf_attachment *attach)
{
struct dma_buf *dmabuf = attach->dmabuf;
struct amdgpu_bo *bo = gem_to_amdgpu_bo(dmabuf->priv);
u32 domains = bo->preferred_domains;
u32 domains = bo->allowed_domains;
dma_resv_assert_held(dmabuf->resv);
@@ -93,6 +93,9 @@ static int amdgpu_dma_buf_pin(struct dma_buf_attachment *attach)
if (domains & AMDGPU_GEM_DOMAIN_VRAM)
bo->flags |= AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
if (WARN_ON(!domains))
return -EINVAL;
return amdgpu_bo_pin(bo, domains);
}