drm/amdgpu: Correct the ndw of bo update mapping.

For buffer object that has shadow buffer, need twice commands.

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b0eb2f537392..d88687b617e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1324,7 +1324,10 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
                 ndw += ncmds * 10;
 
                 /* extra commands for begin/end fragments */
-                ndw += 2 * 10 * adev->vm_manager.fragment_size;
+                if (vm->root.base.bo->shadow)
+                        ndw += 2 * 10 * adev->vm_manager.fragment_size * 2;
+                else
+                        ndw += 2 * 10 * adev->vm_manager.fragment_size;
 
                 params.func = amdgpu_vm_do_set_ptes;
         }