write_c0_pwsize
write_c0_pwsize(1 << 30 | pgd_w << 24 | pmd_w << 12 | pt_w << 6 | pte_w);
write_c0_pwsize(1 << 30 | pgd_w << 24 | pt_w << 6 | pte_w);
write_c0_pwsize(pwsize);