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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [include/] [asm-or32/] [page.h] - Rev 1782
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#ifndef _OR32_PAGE_H #define _OR32_PAGE_H #include <linux/config.h> /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #ifdef __KERNEL__ #define STRICT_MM_TYPECHECKS #ifdef STRICT_MM_TYPECHECKS /* * These are used to make use of C type-checking.. */ typedef struct { unsigned long pte; } pte_t; typedef struct { unsigned long pmd[16]; } pmd_t; typedef struct { unsigned long pgd; } pgd_t; typedef struct { unsigned long pgprot; } pgprot_t; #define pte_val(x) ((x).pte) #define pmd_val(x) ((&x)->pmd[0]) #define pgd_val(x) ((x).pgd) #define pgprot_val(x) ((x).pgprot) #define __pte(x) ((pte_t) { (x) } ) #define __pmd(x) ((pmd_t) { (x) } ) #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) #else /* * .. while these make it easier on the compiler */ typedef unsigned long pte_t; typedef struct { unsigned long pmd[16]; } pmd_t; typedef unsigned long pgd_t; typedef unsigned long pgprot_t; #define pte_val(x) (x) #define pmd_val(x) ((&x)->pmd[0]) #define pgd_val(x) (x) #define pgprot_val(x) (x) #define __pte(x) (x) #define __pmd(x) ((pmd_t) { (x) } ) #define __pgd(x) (x) #define __pgprot(x) (x) #endif /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) /* This handles the memory map.. */ #define PAGE_OFFSET 0x00000000 #define MAP_NR(addr) ((((unsigned long)(addr)) - PAGE_OFFSET) >> PAGE_SHIFT) #endif /* __KERNEL__ */ #endif /* _OR32_PAGE_H */