1/* 2 * Page table types definitions. 3 * 4 * Copyright (C) 2014 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, see <http://www.gnu.org/licenses/>. 18 */ 19 20#ifndef __ASM_PGTABLE_TYPES_H 21#define __ASM_PGTABLE_TYPES_H 22 23#include <asm/types.h> 24 25typedef u64 pteval_t; 26typedef u64 pmdval_t; 27typedef u64 pudval_t; 28typedef u64 pgdval_t; 29 30/* 31 * These are used to make use of C type-checking.. 32 */ 33typedef struct { pteval_t pte; } pte_t; 34#define pte_val(x) ((x).pte) 35#define __pte(x) ((pte_t) { (x) } ) 36 37#if CONFIG_PGTABLE_LEVELS > 2 38typedef struct { pmdval_t pmd; } pmd_t; 39#define pmd_val(x) ((x).pmd) 40#define __pmd(x) ((pmd_t) { (x) } ) 41#endif 42 43#if CONFIG_PGTABLE_LEVELS > 3 44typedef struct { pudval_t pud; } pud_t; 45#define pud_val(x) ((x).pud) 46#define __pud(x) ((pud_t) { (x) } ) 47#endif 48 49typedef struct { pgdval_t pgd; } pgd_t; 50#define pgd_val(x) ((x).pgd) 51#define __pgd(x) ((pgd_t) { (x) } ) 52 53typedef struct { pteval_t pgprot; } pgprot_t; 54#define pgprot_val(x) ((x).pgprot) 55#define __pgprot(x) ((pgprot_t) { (x) } ) 56 57#if CONFIG_PGTABLE_LEVELS == 2 58#define __ARCH_USE_5LEVEL_HACK 59#include <asm-generic/pgtable-nopmd.h> 60#elif CONFIG_PGTABLE_LEVELS == 3 61#define __ARCH_USE_5LEVEL_HACK 62#include <asm-generic/pgtable-nopud.h> 63#elif CONFIG_PGTABLE_LEVELS == 4 64#include <asm-generic/5level-fixup.h> 65#endif 66 67#endif /* __ASM_PGTABLE_TYPES_H */ 68