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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:15:10 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:15:10 +0000 |
| commit | b5875be0451b92bdd99663c8305ae46bd6a7d90c (patch) | |
| tree | 68a6a5f79ac618c79ba3777c21faaea9aec2f0b4 /libdde-linux26/contrib/include/linux/pfn.h | |
| parent | ce6a36c7f7c88e7ca0fda816f9282237bb86829d (diff) | |
| parent | 7996a3d79d55b7f879dfd62e202bbfe2963718d3 (diff) | |
Merge branch 'upstream-merged'
Diffstat (limited to 'libdde-linux26/contrib/include/linux/pfn.h')
| -rw-r--r-- | libdde-linux26/contrib/include/linux/pfn.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/libdde-linux26/contrib/include/linux/pfn.h b/libdde-linux26/contrib/include/linux/pfn.h new file mode 100644 index 00000000..76466372 --- /dev/null +++ b/libdde-linux26/contrib/include/linux/pfn.h @@ -0,0 +1,13 @@ +#ifndef _LINUX_PFN_H_ +#define _LINUX_PFN_H_ + +#ifndef __ASSEMBLY__ +#include <linux/types.h> +#endif + +#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) ((phys_addr_t)(x) << PAGE_SHIFT) + +#endif |