projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| dcfdae04 CM |
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 */ |