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C/C++ Source or Header  |  2006-08-11  |  441 b   |  23 lines
  1. #ifndef _I386_PGTABLE_3LEVEL_DEFS_H
  2. #define _I386_PGTABLE_3LEVEL_DEFS_H
  3.  
  4. /*
  5.  * PGDIR_SHIFT determines what a top-level page table entry can map
  6.  */
  7. #define PGDIR_SHIFT    30
  8. #define PTRS_PER_PGD    4
  9.  
  10. /*
  11.  * PMD_SHIFT determines the size of the area a middle-level
  12.  * page table can map
  13.  */
  14. #define PMD_SHIFT    21
  15. #define PTRS_PER_PMD    512
  16.  
  17. /*
  18.  * entries per page directory level
  19.  */
  20. #define PTRS_PER_PTE    512
  21.  
  22. #endif /* _I386_PGTABLE_3LEVEL_DEFS_H */
  23.