#ifndef _I386_PGTABLE_3LEVEL_DEFS_H #define _I386_PGTABLE_3LEVEL_DEFS_H /* * PGDIR_SHIFT determines what a top-level page table entry can map */ #define PGDIR_SHIFT 30 #define PTRS_PER_PGD 4 /* * PMD_SHIFT determines the size of the area a middle-level * page table can map */ #define PMD_SHIFT 21 #define PTRS_PER_PMD 512 /* * entries per page directory level */ #define PTRS_PER_PTE 512 #endif /* _I386_PGTABLE_3LEVEL_DEFS_H */