The fence in dep_sync cannot be optimized.
Signed-off-by: NChunming Zhou <David1.Zhou@amd.com>
Tested and Reviewed-by: Roger.He <Hongbo.He@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>