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