23 lines
441 B
C
23 lines
441 B
C
#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 */
|