MIPSR6_WIRED_LIMIT_SHIFT
#define MIPSR6_WIRED_LIMIT (_ULCAST_(0xffff) << MIPSR6_WIRED_LIMIT_SHIFT)
MIPSR6_WIRED_LIMIT_SHIFT;
write_gc0_wired(limit << MIPSR6_WIRED_LIMIT_SHIFT);