ENGINE_MASK
#define RENDER_RING ENGINE_MASK(RCS)
#define BSD_RING ENGINE_MASK(VCS)
#define BLT_RING ENGINE_MASK(BCS)
#define VEBOX_RING ENGINE_MASK(VECS)
#define BSD2_RING ENGINE_MASK(VCS2)
#define BSD3_RING ENGINE_MASK(VCS3)
#define BSD4_RING ENGINE_MASK(VCS4)
#define VEBOX2_RING ENGINE_MASK(VECS2)
(!!((dev_priv)->info.ring_mask & ENGINE_MASK(id)))
stalled_mask & ENGINE_MASK(id));
info->ring_mask &= ~ENGINE_MASK(_VCS(i));
info->ring_mask &= ~ENGINE_MASK(_VECS(i));
mask |= ENGINE_MASK(i);