ROUND_UP_LPAGE
valloc_sz = ROUND_UP_LPAGE(valloc_sz);
kpm_size = ROUND_UP_LPAGE(mmu_ptob(physmax + 1));
segkpsize = mmu_btop(ROUND_UP_LPAGE(size));
segkvmmsize = mmu_btop(ROUND_UP_LPAGE(size));
segziosize = mmu_btop(ROUND_UP_LPAGE(size));
ROUND_UP_LPAGE((uintptr_t)segzio_base + mmu_ptob(segziosize));
segmap_start = ROUND_UP_LPAGE(toxic_addr + toxic_size);
segmapsize = MAX(ROUND_UP_LPAGE(segmapsize), SEGMAPDEFAULT);
kernelheap = (caddr_t)ROUND_UP_LPAGE(segmap_start + segmapsize);