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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 | |
6 | #define __PAGETABLE_P4D_FOLDED | |
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 |