PMAP_NC
#define PMAP_NC 4 /* tells pmap_enter to set PG_NC */
#define PMAP_NC 0x001 /* Don't cache, set the E bit in the page */
#define PMAP_NC 0x00 /* tells pmap_enter to set PG_NC */
#define PMAP_NC 0x10 /* tells pmap_enter to set PG_NC */
#define PMAP_NC 0x40 /* tells pmap_enter to set PTE_CI */