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| author | Paul Mackerras <paulus@samba.org> | 2007-05-08 13:37:51 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-05-08 13:37:51 +1000 |
| commit | 02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1 (patch) | |
| tree | 04ef573cd4de095c500c9fc3477f4278c0b36300 /include/asm-sh/page.h | |
| parent | 7487a2245b8841c77ba9db406cf99a483b9334e9 (diff) | |
| parent | 5b94f675f57e4ff16c8fda09088d7480a84dcd91 (diff) | |
| download | kernel_samsung_smdk4412-02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1.zip kernel_samsung_smdk4412-02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1.tar.gz kernel_samsung_smdk4412-02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1.tar.bz2 | |
Merge branch 'linux-2.6'
Diffstat (limited to 'include/asm-sh/page.h')
| -rw-r--r-- | include/asm-sh/page.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index ac4b467..7464de4 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -59,6 +59,7 @@ extern void (*clear_page)(void *to); extern void (*copy_page)(void *to, void *from); extern unsigned long shm_align_mask; +extern unsigned long max_low_pfn, min_low_pfn; #ifdef CONFIG_MMU extern void clear_page_slow(void *to); @@ -124,17 +125,16 @@ typedef struct { unsigned long pgd; } pgd_t; #define PAGE_OFFSET CONFIG_PAGE_OFFSET #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) +#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) -#define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT) - -#define phys_to_page(phys) (mem_map + (((phys)-__MEMORY_START) >> PAGE_SHIFT)) -#define page_to_phys(page) (((page - mem_map) << PAGE_SHIFT) + __MEMORY_START) +#define phys_to_page(phys) (pfn_to_page(phys >> PAGE_SHIFT)) +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) /* PFN start number, because of __MEMORY_START */ #define PFN_START (__MEMORY_START >> PAGE_SHIFT) #define ARCH_PFN_OFFSET (PFN_START) #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define pfn_valid(pfn) (((pfn) - PFN_START) < max_mapnr) +#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn) #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ |