NPMAPS
#ifndef NPMAPS
for (i = 0; i < NPMAPS; i += VSID_NBPW) {
hash = pmap_vsidcontext & (NPMAPS - 1);
idx = pm->pm_vsid & (NPMAPS-1);
pmap_vsid_bitmap[(KERNEL_VSIDBITS & (NPMAPS-1)) / VSID_NBPW]
pmap_vsid_bitmap[(PHYSMAP_VSIDBITS & (NPMAPS-1)) / VSID_NBPW]
static uint32_t pmap_vsid_bitmap[NPMAPS / VSID_NBPW];