KSEGX
if (KSEGX(vaddr) == CKSEG0 || KSEGX(vaddr) == CKSEG1)
if (size > icache_size || KSEGX(start) != KSEG0) {
if (size > dcache_size || KSEGX(start) != KSEG0) {
if ((long)KSEGX((unsigned long)page) != (long)CKSEG0)
if ((long)KSEGX((unsigned long)to) != (long)CKSEG0
|| (long)KSEGX((unsigned long)from) != (long)CKSEG0)
return x >= PAGE_OFFSET && (KSEGX(x) < KSEG2 ||