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Commit 4b277247 authored by Christian König's avatar Christian König Committed by Alex Deucher
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drm/amdgpu: set f_mapping on exported DMA-bufs 



Otherwise we can't correctly CPU map TTM buffers.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent c5066129

drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c

+5 −1
Original line number Diff line number Diff line
@@ -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;

}