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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_ARM64_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_ARM64_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_ARM64_PGTABLE_LEVELS > 2
typedef pmdval_t pmd_t;
#define pmd_val(x) (x)
#define __pmd(x) (x)
#endif
#if CONFIG_ARM64_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_ARM64_PGTABLE_LEVELS == 2
#include <asm-generic/pgtable-nopmd.h>
#elif CONFIG_ARM64_PGTABLE_LEVELS == 3
#include <asm-generic/pgtable-nopud.h>
#endif
#endif /* __ASM_PGTABLE_TYPES_H */
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