1 /* 2 * arch/arm/include/asm/pgtable-3level-types.h 3 * 4 * Copyright (C) 2011 ARM Ltd. 5 * Author: Catalin Marinas <catalin.marinas@arm.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 #ifndef _ASM_PGTABLE_3LEVEL_TYPES_H 21 #define _ASM_PGTABLE_3LEVEL_TYPES_H 22 23 #include <asm/types.h> 24 25 typedef u64 pteval_t; 26 typedef u64 pmdval_t; 27 typedef u64 pgdval_t; 28 29 #undef STRICT_MM_TYPECHECKS 30 31 #ifdef STRICT_MM_TYPECHECKS 32 33 /* 34 * These are used to make use of C type-checking.. 35 */ 36 typedef struct { pteval_t pte; } pte_t; 37 typedef struct { pmdval_t pmd; } pmd_t; 38 typedef struct { pgdval_t pgd; } pgd_t; 39 typedef struct { pteval_t pgprot; } pgprot_t; 40 41 #define pte_val(x) ((x).pte) 42 #define pmd_val(x) ((x).pmd) 43 #define pgd_val(x) ((x).pgd) 44 #define pgprot_val(x) ((x).pgprot) 45 46 #define __pte(x) ((pte_t) { (x) } ) 47 #define __pmd(x) ((pmd_t) { (x) } ) 48 #define __pgd(x) ((pgd_t) { (x) } ) 49 #define __pgprot(x) ((pgprot_t) { (x) } ) 50 51 #else /* !STRICT_MM_TYPECHECKS */ 52 53 typedef pteval_t pte_t; 54 typedef pmdval_t pmd_t; 55 typedef pgdval_t pgd_t; 56 typedef pteval_t pgprot_t; 57 58 #define pte_val(x) (x) 59 #define pmd_val(x) (x) 60 #define pgd_val(x) (x) 61 #define pgprot_val(x) (x) 62 63 #define __pte(x) (x) 64 #define __pmd(x) (x) 65 #define __pgd(x) (x) 66 #define __pgprot(x) (x) 67 68 #endif /* STRICT_MM_TYPECHECKS */ 69 70 #endif /* _ASM_PGTABLE_3LEVEL_TYPES_H */ 71