projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 505a60e2 KS |
2 | #ifndef _5LEVEL_FIXUP_H |
| 3 | #define _5LEVEL_FIXUP_H | |
| 4 | ||
| 5 | #define __ARCH_HAS_5LEVEL_HACK | |
| 224ab512 | 6 | #define __PAGETABLE_P4D_FOLDED 1 |
| 505a60e2 KS |
7 | |
| 8 | #define P4D_SHIFT PGDIR_SHIFT | |
| 9 | #define P4D_SIZE PGDIR_SIZE | |
| 10 | #define P4D_MASK PGDIR_MASK | |
| 11 | #define PTRS_PER_P4D 1 | |
| 12 | ||
| 13 | #define p4d_t pgd_t | |
| 14 | ||
| 15 | #define pud_alloc(mm, p4d, address) \ | |
| 16 | ((unlikely(pgd_none(*(p4d))) && __pud_alloc(mm, p4d, address)) ? \ | |
| 17 | NULL : pud_offset(p4d, address)) | |
| 18 | ||
| 19 | #define p4d_alloc(mm, pgd, address) (pgd) | |
| 20 | #define p4d_offset(pgd, start) (pgd) | |
| 21 | #define p4d_none(p4d) 0 | |
| 22 | #define p4d_bad(p4d) 0 | |
| 23 | #define p4d_present(p4d) 1 | |
| 24 | #define p4d_ERROR(p4d) do { } while (0) | |
| 25 | #define p4d_clear(p4d) pgd_clear(p4d) | |
| 26 | #define p4d_val(p4d) pgd_val(p4d) | |
| 27 | #define p4d_populate(mm, p4d, pud) pgd_populate(mm, p4d, pud) | |
| 28 | #define p4d_page(p4d) pgd_page(p4d) | |
| 29 | #define p4d_page_vaddr(p4d) pgd_page_vaddr(p4d) | |
| 30 | ||
| 31 | #define __p4d(x) __pgd(x) | |
| 32 | #define set_p4d(p4dp, p4d) set_pgd(p4dp, p4d) | |
| 33 | ||
| 34 | #undef p4d_free_tlb | |
| 35 | #define p4d_free_tlb(tlb, x, addr) do { } while (0) | |
| 36 | #define p4d_free(mm, x) do { } while (0) | |
| 37 | #define __p4d_free_tlb(tlb, x, addr) do { } while (0) | |
| 38 | ||
| 39 | #undef p4d_addr_end | |
| 40 | #define p4d_addr_end(addr, end) (end) | |
| 41 | ||
| 42 | #endif |