Otherwise we can't correctly CPU map TTM buffers.
Signed-off-by: Christian König <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
index 90af8e82b16a..ae9c106979d7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
@@ -169,10 +169,14 @@ struct dma_buf *amdgpu_gem_prime_export(struct drm_device
*dev,
int flags)
{
struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
+ struct dma_buf *buf;
if (amdgpu_ttm_tt_get_usermm(bo->tbo.ttm) ||
bo->flags & AMDGPU_GEM_CREATE_VM_ALWAYS_VALID)
return ERR_PTR(-EPERM);
- return drm_gem_prime_export(dev, gobj, flags);
+ buf = drm_gem_prime_export(dev, gobj, flags);
+ if (!IS_ERR(buf))
+ buf->file->f_mapping = dev->anon_inode->i_mapping;
+ return buf;
}
--
2.11.0
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