1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * arch/arm/include/asm/pgtable-2level-types.h
4 *
5 * Copyright (C) 1995-2003 Russell King
6 */
7#ifndef _ASM_PGTABLE_2LEVEL_TYPES_H
8#define _ASM_PGTABLE_2LEVEL_TYPES_H
9
10#include <asm/types.h>
11
12typedef u32 pteval_t;
13typedef u32 pmdval_t;
14
15#undef STRICT_MM_TYPECHECKS
16
17#ifdef STRICT_MM_TYPECHECKS
18/*
19 * These are used to make use of C type-checking..
20 */
21typedef struct { pteval_t pte; } pte_t;
22typedef struct { pmdval_t pmd; } pmd_t;
23typedef struct { pmdval_t pgd[2]; } pgd_t;
24typedef struct { pteval_t pgprot; } pgprot_t;
25
26#define pte_val(x)      ((x).pte)
27#define pmd_val(x)      ((x).pmd)
28#define pgd_val(x)	((x).pgd[0])
29#define pgprot_val(x)   ((x).pgprot)
30
31#define __pte(x)        ((pte_t) { (x) } )
32#define __pmd(x)        ((pmd_t) { (x) } )
33#define __pgprot(x)     ((pgprot_t) { (x) } )
34
35#else
36/*
37 * .. while these make it easier on the compiler
38 */
39typedef pteval_t pte_t;
40typedef pmdval_t pmd_t;
41typedef pmdval_t pgd_t[2];
42typedef pteval_t pgprot_t;
43
44#define pte_val(x)      (x)
45#define pmd_val(x)      (x)
46#define pgd_val(x)	((x)[0])
47#define pgprot_val(x)   (x)
48
49#define __pte(x)        (x)
50#define __pmd(x)        (x)
51#define __pgprot(x)     (x)
52
53#endif /* STRICT_MM_TYPECHECKS */
54
55#endif	/* _ASM_PGTABLE_2LEVEL_TYPES_H */
56