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- /*
- * 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;
- #undef STRICT_MM_TYPECHECKS
- #ifdef STRICT_MM_TYPECHECKS
- /*
- * 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) } )
- #else /* !STRICT_MM_TYPECHECKS */
- typedef pteval_t pte_t;
- #define pte_val(x) (x)
- #define __pte(x) (x)
- #if CONFIG_PGTABLE_LEVELS > 2
- typedef pmdval_t pmd_t;
- #define pmd_val(x) (x)
- #define __pmd(x) (x)
- #endif
- #if CONFIG_PGTABLE_LEVELS > 3
- typedef pudval_t pud_t;
- #define pud_val(x) (x)
- #define __pud(x) (x)
- #endif
- typedef pgdval_t pgd_t;
- #define pgd_val(x) (x)
- #define __pgd(x) (x)
- typedef pteval_t pgprot_t;
- #define pgprot_val(x) (x)
- #define __pgprot(x) (x)
- #endif /* STRICT_MM_TYPECHECKS */
- #if CONFIG_PGTABLE_LEVELS == 2
- #include <asm-generic/pgtable-nopmd.h>
- #elif CONFIG_PGTABLE_LEVELS == 3
- #include <asm-generic/pgtable-nopud.h>
- #endif
- #endif /* __ASM_PGTABLE_TYPES_H */
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