/* * Page table types definitions. * * Copyright (C) 2014 ARM Ltd. * Author: Catalin Marinas <catalin.marinas@arm.com> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __ASM_PGTABLE_TYPES_H #define __ASM_PGTABLE_TYPES_H #include <asm/types.h> typedef u64 pteval_t; typedef u64 pmdval_t; typedef u64 pudval_t; typedef u64 pgdval_t; /* * These are used to make use of C type-checking.. */ typedef struct { pteval_t pte; } pte_t; #define pte_val(x) ((x).pte) #define __pte(x) ((pte_t) { (x) } ) #if CONFIG_PGTABLE_LEVELS > 2 typedef struct { pmdval_t pmd; } pmd_t; #define pmd_val(x) ((x).pmd) #define __pmd(x) ((pmd_t) { (x) } ) #endif #if CONFIG_PGTABLE_LEVELS > 3 typedef struct { pudval_t pud; } pud_t; #define pud_val(x) ((x).pud) #define __pud(x) ((pud_t) { (x) } ) #endif typedef struct { pgdval_t pgd; } pgd_t; #define pgd_val(x) ((x).pgd) #define __pgd(x) ((pgd_t) { (x) } ) typedef struct { pteval_t pgprot; } pgprot_t; #define pgprot_val(x) ((x).pgprot) #define __pgprot(x) ((pgprot_t) { (x) } ) #if CONFIG_PGTABLE_LEVELS == 2 #define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopmd.h> #elif CONFIG_PGTABLE_LEVELS == 3 #define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopud.h> #elif CONFIG_PGTABLE_LEVELS == 4 #include <asm-generic/5level-fixup.h> #endif #endif /* __ASM_PGTABLE_TYPES_H */