1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _4LEVEL_FIXUP_H
 3#define _4LEVEL_FIXUP_H
 4
 5#define __ARCH_HAS_4LEVEL_HACK
 6#define __PAGETABLE_PUD_FOLDED 1
 7
 8#define PUD_SHIFT			PGDIR_SHIFT
 9#define PUD_SIZE			PGDIR_SIZE
10#define PUD_MASK			PGDIR_MASK
11#define PTRS_PER_PUD			1
12
13#define pud_t				pgd_t
14
15#define pmd_alloc(mm, pud, address) \
16	((unlikely(pgd_none(*(pud))) && __pmd_alloc(mm, pud, address))? \
17 		NULL: pmd_offset(pud, address))
18
19#define pud_offset(pgd, start)		(pgd)
20#define pud_none(pud)			0
21#define pud_bad(pud)			0
22#define pud_present(pud)		1
23#define pud_ERROR(pud)			do { } while (0)
24#define pud_clear(pud)			pgd_clear(pud)
25#define pud_val(pud)			pgd_val(pud)
26#define pud_populate(mm, pud, pmd)	pgd_populate(mm, pud, pmd)
27#define pud_page(pud)			pgd_page(pud)
28#define pud_page_vaddr(pud)		pgd_page_vaddr(pud)
29
30#undef pud_free_tlb
31#define pud_free_tlb(tlb, x, addr)	do { } while (0)
32#define pud_free(mm, x)			do { } while (0)
33#define __pud_free_tlb(tlb, x, addr)	do { } while (0)
34
35#undef  pud_addr_end
36#define pud_addr_end(addr, end)		(end)
37
38#include <asm-generic/5level-fixup.h>
39
40#endif