TLB_UNCACHEABLE
tlbprot |= TLB_UNCACHEABLE;
(pte & PTE_PROT(TLB_UNCACHEABLE|TLB_DIRTY|TLB_REFTRAP));
pte |= PTE_PROT(TLB_UNCACHEABLE);
pte |= PTE_PROT(TLB_UNCACHEABLE);
#define PVF_UNCACHEABLE PTE_PROT(TLB_UNCACHEABLE) /* pg/mp is uncacheable */