A user can run batchbuffer via VEBOX ring.
Signed-off-by: NXiang, Haihao <haihao.xiang@intel.com>
Reviewed-by: NDamien Lespiau <damien.lespiau@intel.com>
Signed-off-by: NBen Widawsky <ben@bwidawsk.net>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>