RING_SYNC_1
#define GEN6_RBSYNC (RING_SYNC_1(RENDER_RING_BASE))
#define GEN6_VRSYNC (RING_SYNC_1(GEN6_BSD_RING_BASE))
#define GEN6_BVSYNC (RING_SYNC_1(BLT_RING_BASE))
#define GEN6_VERSYNC (RING_SYNC_1(VEBOX_RING_BASE))
MMIO_RING_DFH(RING_SYNC_1, D_ALL, F_CMD_ACCESS, NULL, NULL);
MMIO_RING_D(RING_SYNC_1);