# define RADEON_RB_BUFSZ_MASK (0x3f << 0)
# define RADEON_RB_BLKSZ_SHIFT 8
# define RADEON_RB_BLKSZ_MASK (0x3f << 8)
-# define RADEON_BUF_SWAP_32BIT (1 << 17)
+# define RADEON_BUF_SWAP_32BIT (2 << 16)
# define RADEON_MAX_FETCH_SHIFT 18
# define RADEON_MAX_FETCH_MASK (0x3 << 18)
# define RADEON_RB_NO_UPDATE (1 << 27)