PG_NC_PCD
*pte = pa | PG_V | PG_RW | PG_NC_PWT | PG_NC_PCD;
cache_bits |= PG_NC_PCD;
if ((pte & PG_NC_PCD) != 0)
cache_bits |= PG_NC_PCD;
if ((pte & PG_NC_PCD) != 0)
#define PG_N (PG_NC_PWT|PG_NC_PCD) /* Non-cacheable */
#define PG_PDE_CACHE (PG_PDE_PAT | PG_NC_PWT | PG_NC_PCD)
#define PG_PTE_CACHE (PG_PTE_PAT | PG_NC_PWT | PG_NC_PCD)
PG_M | PG_NC_PCD | PG_NC_PWT | PG_U | PG_RW | PG_V)