diff options
| author | Len Brown <len.brown@intel.com> | 2005-09-03 02:44:09 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2005-09-03 02:44:09 -0400 |
| commit | 129521dcc94f781890f8f668219ab79f0073ff9f (patch) | |
| tree | 9f70707c88da65577f38814fe37b24c4b4957d64 /arch/ppc64/boot/page.h | |
| parent | 824b558bbe2c298b165cdb54c33718994dda30bb (diff) | |
| parent | f505380ba7b98ec97bf25300c2a58aeae903530b (diff) | |
Merge linux-2.6 into linux-acpi-2.6 test
Diffstat (limited to 'arch/ppc64/boot/page.h')
| -rw-r--r-- | arch/ppc64/boot/page.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/ppc64/boot/page.h b/arch/ppc64/boot/page.h new file mode 100644 index 000000000000..14eca30fef64 --- /dev/null +++ b/arch/ppc64/boot/page.h @@ -0,0 +1,34 @@ +#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))&(~((size)-1))) +#define _ALIGN_DOWN(addr,size) ((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 */ |