| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | #ifndef _4LEVEL_FIXUP_H |
| 2 | #define _4LEVEL_FIXUP_H |
| 3 | |
| 4 | #define __ARCH_HAS_4LEVEL_HACK |
| 5 | #define __PAGETABLE_PUD_FOLDED |
| 6 | |
| 7 | #define PUD_SIZE PGDIR_SIZE |
| 8 | #define PUD_MASK PGDIR_MASK |
| 9 | #define PTRS_PER_PUD 1 |
| 10 | |
| 11 | #define pud_t pgd_t |
| 12 | |
| 13 | #define pmd_alloc(mm, pud, address) \ |
| 14 | ({ pmd_t *ret; \ |
| 15 | if (pgd_none(*pud)) \ |
| 16 | ret = __pmd_alloc(mm, pud, address); \ |
| 17 | else \ |
| 18 | ret = pmd_offset(pud, address); \ |
| 19 | ret; \ |
| 20 | }) |
| 21 | |
| 22 | #define pud_alloc(mm, pgd, address) (pgd) |
| 23 | #define pud_offset(pgd, start) (pgd) |
| 24 | #define pud_none(pud) 0 |
| 25 | #define pud_bad(pud) 0 |
| 26 | #define pud_present(pud) 1 |
| 27 | #define pud_ERROR(pud) do { } while (0) |
| 28 | #define pud_clear(pud) pgd_clear(pud) |
| 29 | |
| 30 | #undef pud_free_tlb |
| 31 | #define pud_free_tlb(tlb, x) do { } while (0) |
| 32 | #define pud_free(x) do { } while (0) |
| 33 | #define __pud_free_tlb(tlb, x) do { } while (0) |
| 34 | |
| 35 | #undef pud_addr_end |
| 36 | #define pud_addr_end(addr, end) (end) |
| 37 | |
| 38 | #endif |