diff options
| author | Paul Mackerras <paulus@samba.org> | 2006-03-29 13:24:50 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-03-29 13:24:50 +1100 |
| commit | bac30d1a78d0f11c613968fc8b351a91ed465386 (patch) | |
| tree | e52f3c876522a2f6047a6ec1c27df2e8a79486b8 /include/linux/pfn.h | |
| parent | e8222502ee6157e2713da9e0792c21f4ad458d50 (diff) | |
| parent | ca9ba4471c1203bb6e759b76e83167fec54fe590 (diff) | |
Merge ../linux-2.6
Diffstat (limited to 'include/linux/pfn.h')
| -rw-r--r-- | include/linux/pfn.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/pfn.h b/include/linux/pfn.h new file mode 100644 index 00000000000..bb01f8b92b5 --- /dev/null +++ b/include/linux/pfn.h @@ -0,0 +1,9 @@ +#ifndef _LINUX_PFN_H_ +#define _LINUX_PFN_H_ + +#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) +#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) +#define PFN_DOWN(x) ((x) >> PAGE_SHIFT) +#define PFN_PHYS(x) ((x) << PAGE_SHIFT) + +#endif |