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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-arm/] [page.h] - Rev 1774
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#ifndef _ASMARM_PAGE_H #define _ASMARM_PAGE_H #include <asm/proc/page.h> #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #ifdef __KERNEL__ #ifndef __ASSEMBLY__ #define STRICT_MM_TYPECHECKS #define clear_page(page) memzero((void *)(page), PAGE_SIZE) extern void copy_page(void *to, void *from); #define clear_user_page(page, vaddr) clear_page(page) #define copy_user_page(to, from, vaddr) copy_page(to, from) #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; } 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) #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 unsigned long pmd_t; typedef unsigned long pgd_t; typedef unsigned long pgprot_t; #define pte_val(x) (x) #define pmd_val(x) (x) #define pgd_val(x) (x) #define pgprot_val(x) (x) #define __pte(x) (x) #define __pmd(x) (x) #define __pgd(x) (x) #define __pgprot(x) (x) #endif #endif /* !__ASSEMBLY__ */ /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) #ifndef __ASSEMBLY__ #ifdef CONFIG_DEBUG_BUGVERBOSE extern void __bug(const char *file, int line, void *data); /* give file/line information */ #define BUG() __bug(__FILE__, __LINE__, NULL) #define PAGE_BUG(page) __bug(__FILE__, __LINE__, page) #else /* these just cause an oops */ #define BUG() (*(int *)0 = 0) #define PAGE_BUG(page) (*(int *)0 = 0) #endif /* Pure 2^n version of get_order */ static inline int get_order(unsigned long size) { int order; size = (size-1) >> (PAGE_SHIFT-1); order = -1; do { size >>= 1; order++; } while (size); return order; } #endif /* !__ASSEMBLY__ */ #include <linux/config.h> #include <asm/memory.h> #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) #endif /* __KERNEL__ */ #endif
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