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 12 typedef u32 pteval_t; 13 typedef 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 */ 21 typedef struct { pteval_t pte; } pte_t; 22 typedef struct { pmdval_t pmd; } pmd_t; 23 typedef struct { pmdval_t pgd[2]; } pgd_t; 24 typedef 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 */ 39 typedef pteval_t pte_t; 40 typedef pmdval_t pmd_t; 41 typedef pmdval_t pgd_t[2]; 42 typedef 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