[deliverable/linux.git] / include / linux / pfn.h

#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)
#define PHYS_PFN(x)	((unsigned long)((x) >> PAGE_SHIFT))

#endif
Commit	Line	Data
22a9835c DH	1	#ifndef _LINUX_PFN_H_
	2	#define _LINUX_PFN_H_
	3
947d0496 JF	4	#ifndef __ASSEMBLY__
	5	#include <linux/types.h>
	6	#endif
	7
22a9835c DH	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)
947d0496	11	#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT)
8f235d1a	12	#define PHYS_PFN(x) ((unsigned long)((x) >> PAGE_SHIFT))
22a9835c DH	13
22a9835c DH	14	#endif