#ifndef _PPC_BOOT_PAGE_H #define _PPC_BOOT_PAGE_H /* * Copyright (C) 2001 PPC64 Team, IBM Corp * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifdef __ASSEMBLY__ #define ASM_CONST(x) x #else #define __ASM_CONST(x) x##UL #define ASM_CONST(x) __ASM_CONST(x) #endif /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) /* align addr on a size boundary - adjust address up/down if needed */ #define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((typeof(addr))(size)-1))) #define _ALIGN_DOWN(addr, size) ((addr)&(~((typeof(addr))(size)-1))) /* align addr on a size boundary - adjust address up if needed */ #define _ALIGN(addr,size) _ALIGN_UP(addr,size) /* to align the pointer to the (next) page boundary */ #define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE) #endif /* _PPC_BOOT_PAGE_H */