RADEON_RB3D_DSTCACHE_CTLSTAT
RADEON_RB3D_DSTCACHE_CTLSTAT, RADEON_RB3D_DC_FLUSH_ALL);
RADEON_RB3D_DSTCACHE_CTLSTAT) & RADEON_RB3D_DC_BUSY) == 0)
RADEON_RB3D_DSTCACHE_CTLSTAT, RADEON_RB3D_DC_FLUSH_ALL);
RADEON_RB3D_DSTCACHE_CTLSTAT) & RADEON_RB3D_DC_BUSY) == 0)
radeon_ring_write(ring, PACKET0(RADEON_RB3D_DSTCACHE_CTLSTAT, 0));