drm/amdgpu: add bo list copy

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Christian K?nig <christian.koenig@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 6bf16d9..cfc6c78 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1062,6 +1062,9 @@
 struct amdgpu_bo_list *
 amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id);
 void amdgpu_bo_list_put(struct amdgpu_bo_list *list);
+void amdgpu_bo_list_copy(struct amdgpu_device *adev,
+			 struct amdgpu_bo_list *dst,
+			 struct amdgpu_bo_list *src);
 void amdgpu_bo_list_free(struct amdgpu_bo_list *list);
 
 /*