1
2#ifndef _5LEVEL_FIXUP_H
3#define _5LEVEL_FIXUP_H
4
5#define __ARCH_HAS_5LEVEL_HACK
6#define __PAGETABLE_P4D_FOLDED 1
7
8#define P4D_SHIFT PGDIR_SHIFT
9#define P4D_SIZE PGDIR_SIZE
10#define P4D_MASK PGDIR_MASK
11#define MAX_PTRS_PER_P4D 1
12#define PTRS_PER_P4D 1
13
14#define p4d_t pgd_t
15
16#define pud_alloc(mm, p4d, address) \
17 ((unlikely(pgd_none(*(p4d))) && __pud_alloc(mm, p4d, address)) ? \
18 NULL : pud_offset(p4d, address))
19
20#define p4d_alloc(mm, pgd, address) (pgd)
21#define p4d_offset(pgd, start) (pgd)
22#define p4d_none(p4d) 0
23#define p4d_bad(p4d) 0
24#define p4d_present(p4d) 1
25#define p4d_ERROR(p4d) do { } while (0)
26#define p4d_clear(p4d) pgd_clear(p4d)
27#define p4d_val(p4d) pgd_val(p4d)
28#define p4d_populate(mm, p4d, pud) pgd_populate(mm, p4d, pud)
29#define p4d_populate_safe(mm, p4d, pud) pgd_populate(mm, p4d, pud)
30#define p4d_page(p4d) pgd_page(p4d)
31#define p4d_page_vaddr(p4d) pgd_page_vaddr(p4d)
32
33#define __p4d(x) __pgd(x)
34#define set_p4d(p4dp, p4d) set_pgd(p4dp, p4d)
35
36#undef p4d_free_tlb
37#define p4d_free_tlb(tlb, x, addr) do { } while (0)
38#define p4d_free(mm, x) do { } while (0)
39#define __p4d_free_tlb(tlb, x, addr) do { } while (0)
40
41#undef p4d_addr_end
42#define p4d_addr_end(addr, end) (end)
43
44#endif
45
