1#ifndef _PPC_BOOT_PAGE_H
 2#define _PPC_BOOT_PAGE_H
 3/*
 4 * Copyright (C) 2001 PPC64 Team, IBM Corp
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 */
11
12#ifdef __ASSEMBLY__
13#define ASM_CONST(x) x
14#else
15#define __ASM_CONST(x) x##UL
16#define ASM_CONST(x) __ASM_CONST(x)
17#endif
18
19/* PAGE_SHIFT determines the page size */
20#define PAGE_SHIFT	12
21#define PAGE_SIZE	(ASM_CONST(1) << PAGE_SHIFT)
22#define PAGE_MASK	(~(PAGE_SIZE-1))
23
24/* align addr on a size boundary - adjust address up/down if needed */
25#define _ALIGN_UP(addr, size)	(((addr)+((size)-1))&(~((typeof(addr))(size)-1)))
26#define _ALIGN_DOWN(addr, size)	((addr)&(~((typeof(addr))(size)-1)))
27
28/* align addr on a size boundary - adjust address up if needed */
29#define _ALIGN(addr,size)     _ALIGN_UP(addr,size)
30
31/* to align the pointer to the (next) page boundary */
32#define PAGE_ALIGN(addr)	_ALIGN(addr, PAGE_SIZE)
33
34#endif				/* _PPC_BOOT_PAGE_H */

 1#ifndef _PPC_BOOT_PAGE_H
 2#define _PPC_BOOT_PAGE_H
 3/*
 4 * Copyright (C) 2001 PPC64 Team, IBM Corp
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 */
11
12#ifdef __ASSEMBLY__
13#define ASM_CONST(x) x
14#else
15#define __ASM_CONST(x) x##UL
16#define ASM_CONST(x) __ASM_CONST(x)
17#endif
18
19/* PAGE_SHIFT determines the page size */
20#define PAGE_SHIFT	12
21#define PAGE_SIZE	(ASM_CONST(1) << PAGE_SHIFT)
22#define PAGE_MASK	(~(PAGE_SIZE-1))
23
24/* align addr on a size boundary - adjust address up/down if needed */
25#define _ALIGN_UP(addr, size)	(((addr)+((size)-1))&(~((typeof(addr))(size)-1)))
26#define _ALIGN_DOWN(addr, size)	((addr)&(~((typeof(addr))(size)-1)))
27
28/* align addr on a size boundary - adjust address up if needed */
29#define _ALIGN(addr,size)     _ALIGN_UP(addr,size)
30
31/* to align the pointer to the (next) page boundary */
32#define PAGE_ALIGN(addr)	_ALIGN(addr, PAGE_SIZE)
33
34#endif				/* _PPC_BOOT_PAGE_H */