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dma-buf: wait for map to complete for static attachments

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We have previously done that in the individual drivers but it is
more defensive to move that into the common code.

Dynamic attachments should wait for map operations to complete by themselves.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407085946.744568-12-christian.koenig@amd.com
This commit is contained in:
Christian König 2021-11-23 09:58:36 +01:00
parent 0cc848a75b
commit 46b35b33cc
4 changed files with 18 additions and 43 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/dma-buf/dma-buf.c
View file

@ -661,12 +661,24 @@ static struct sg_table * __map_dma_buf(struct dma_buf_attachment *attach,
enum dma_data_direction direction)
{
struct sg_table *sg_table;
signed long ret;
sg_table = attach->dmabuf->ops->map_dma_buf(attach, direction);
if (IS_ERR_OR_NULL(sg_table))
return sg_table;
if (!IS_ERR_OR_NULL(sg_table))
mangle_sg_table(sg_table);
if (!dma_buf_attachment_is_dynamic(attach)) {
ret = dma_resv_wait_timeout(attach->dmabuf->resv,
DMA_RESV_USAGE_KERNEL, true,
MAX_SCHEDULE_TIMEOUT);
if (ret < 0) {
attach->dmabuf->ops->unmap_dma_buf(attach, sg_table,
direction);
return ERR_PTR(ret);
}
}
mangle_sg_table(sg_table);
return sg_table;
}

14
drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
View file

@ -102,21 +102,9 @@ static int amdgpu_dma_buf_pin(struct dma_buf_attachment *attach)
{
struct drm_gem_object *obj = attach->dmabuf->priv;
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
int r;
/* pin buffer into GTT */
r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
if (r)
return r;
if (bo->tbo.moving) {
r = dma_fence_wait(bo->tbo.moving, true);
if (r) {
amdgpu_bo_unpin(bo);
return r;
}
}
return 0;
return amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
}
/**

17
drivers/gpu/drm/nouveau/nouveau_prime.c
View file

@ -93,22 +93,7 @@ int nouveau_gem_prime_pin(struct drm_gem_object *obj)
if (ret)
return -EINVAL;
ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
if (ret)
goto error;
if (nvbo->bo.moving)
ret = dma_fence_wait(nvbo->bo.moving, true);
ttm_bo_unreserve(&nvbo->bo);
if (ret)
goto error;
return ret;
error:
nouveau_bo_unpin(nvbo);
return ret;
return 0;
}
void nouveau_gem_prime_unpin(struct drm_gem_object *obj)

14
drivers/gpu/drm/radeon/radeon_prime.c
View file

@ -77,19 +77,9 @@ int radeon_gem_prime_pin(struct drm_gem_object *obj)
/* pin buffer into GTT */
ret = radeon_bo_pin(bo, RADEON_GEM_DOMAIN_GTT, NULL);
if (unlikely(ret))
goto error;
if (likely(ret == 0))
bo->prime_shared_count++;
if (bo->tbo.moving) {
ret = dma_fence_wait(bo->tbo.moving, false);
if (unlikely(ret)) {
radeon_bo_unpin(bo);
goto error;
}
}
bo->prime_shared_count++;
error:
radeon_bo_unreserve(bo);
return ret;
}