1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * arch/arm/include/asm/pgtable-3level-types.h
4  *
5  * Copyright (C) 2011 ARM Ltd.
6  * Author: Catalin Marinas <catalin.marinas@arm.com>
7  */
8 #ifndef _ASM_PGTABLE_3LEVEL_TYPES_H
9 #define _ASM_PGTABLE_3LEVEL_TYPES_H
10 
11 #include <asm/types.h>
12 
13 typedef u64 pteval_t;
14 typedef u64 pmdval_t;
15 typedef u64 pgdval_t;
16 
17 #undef STRICT_MM_TYPECHECKS
18 
19 #ifdef STRICT_MM_TYPECHECKS
20 
21 /*
22  * These are used to make use of C type-checking..
23  */
24 typedef struct { pteval_t pte; } pte_t;
25 typedef struct { pmdval_t pmd; } pmd_t;
26 typedef struct { pgdval_t pgd; } pgd_t;
27 typedef struct { pteval_t pgprot; } pgprot_t;
28 
29 #define pte_val(x)      ((x).pte)
30 #define pmd_val(x)      ((x).pmd)
31 #define pgd_val(x)	((x).pgd)
32 #define pgprot_val(x)   ((x).pgprot)
33 
34 #define __pte(x)        ((pte_t) { (x) } )
35 #define __pmd(x)        ((pmd_t) { (x) } )
36 #define __pgd(x)	((pgd_t) { (x) } )
37 #define __pgprot(x)     ((pgprot_t) { (x) } )
38 
39 #else	/* !STRICT_MM_TYPECHECKS */
40 
41 typedef pteval_t pte_t;
42 typedef pmdval_t pmd_t;
43 typedef pgdval_t pgd_t;
44 typedef pteval_t pgprot_t;
45 
46 #define pte_val(x)	(x)
47 #define pmd_val(x)	(x)
48 #define pgd_val(x)	(x)
49 #define pgprot_val(x)	(x)
50 
51 #define __pte(x)	(x)
52 #define __pmd(x)	(x)
53 #define __pgd(x)	(x)
54 #define __pgprot(x)	(x)
55 
56 #endif	/* STRICT_MM_TYPECHECKS */
57 
58 #endif	/* _ASM_PGTABLE_3LEVEL_TYPES_H */
59