/* * arch/arm/include/asm/pgtable-2level-types.h * * Copyright (C) 1995-2003 Russell King * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _ASM_PGTABLE_2LEVEL_TYPES_H #define _ASM_PGTABLE_2LEVEL_TYPES_H #include <asm/types.h> typedef u32 pteval_t; typedef u32 pmdval_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; typedef struct { pmdval_t pmd; } pmd_t; typedef struct { pmdval_t pgd[2]; } pgd_t; typedef struct { pteval_t pgprot; } pgprot_t; #define pte_val(x) ((x).pte) #define pmd_val(x) ((x).pmd) #define pgd_val(x) ((x).pgd[0]) #define pgprot_val(x) ((x).pgprot) #define __pte(x) ((pte_t) { (x) } ) #define __pmd(x) ((pmd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) #else /* * .. while these make it easier on the compiler */ typedef pteval_t pte_t; typedef pmdval_t pmd_t; typedef pmdval_t pgd_t[2]; typedef pteval_t pgprot_t; #define pte_val(x) (x) #define pmd_val(x) (x) #define pgd_val(x) ((x)[0]) #define pgprot_val(x) (x) #define __pte(x) (x) #define __pmd(x) (x) #define __pgprot(x) (x) #endif /* STRICT_MM_TYPECHECKS */ #endif /* _ASM_PGTABLE_2LEVEL_TYPES_H */ |