prom_map_phys
int prom_map_phys(paddr_t paddr, off_t size, vaddr_t vaddr, int mode);
prom_map_phys(phys_msgbuf, msgbufsiz, (vaddr_t)msgbufp, -1);
prom_map_phys(pa, NBPG, vmmap, -1);
prom_map_phys(pa, 64*KB, vmmap, -1);
prom_map_phys(pa, 64*KB, CPUINFO_VA, -1);
if (prom_map_phys(phys_msgbuf, msgbufsiz, (vaddr_t)msgbufp,
prom_map_phys(newkp, szdiff, newkv, -1);
prom_map_phys(newkp, sz, (vaddr_t)newkv, -1);
prom_map_phys(newkp, sz, kdata, -1);
prom_map_phys(newkp, ktsize, (vaddr_t)newkv, -1);
prom_map_phys(newkp, ktsize, ktext, -1);