round8
size += sizeof (prasmap_t) + round8(npage);
size += sizeof (prasmap32_t) + round8(npage);
next = (uintptr_t)(pmp + 1) + round8(npage);
next = (uintptr_t)(pmp + 1) + round8(npage);
#define LSPAN32(type) (round8(sizeof (type)) + 8)
#define LSPAN(type) (round8(sizeof (type)) + 8)