1#ifndef _LINUX_PFN_H_
2#define _LINUX_PFN_H_
3
4#ifndef __ASSEMBLY__
5#include <linux/types.h>
6#endif
7
8#define PFN_ALIGN(x)	(((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
9#define PFN_UP(x)	(((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
10#define PFN_DOWN(x)	((x) >> PAGE_SHIFT)
11#define PFN_PHYS(x)	((phys_addr_t)(x) << PAGE_SHIFT)
12
13#endif
14