| Vineet Gupta | 3be80aa | 2013-01-18 15:12:17 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | #ifndef __ASM_ARC_PAGE_H |
| 10 | #define __ASM_ARC_PAGE_H |
| 11 | |
| 12 | /* PAGE_SHIFT determines the page size */ |
| 13 | #if defined(CONFIG_ARC_PAGE_SIZE_16K) |
| 14 | #define PAGE_SHIFT 14 |
| 15 | #elif defined(CONFIG_ARC_PAGE_SIZE_4K) |
| 16 | #define PAGE_SHIFT 12 |
| 17 | #else |
| 18 | /* |
| 19 | * Default 8k |
| 20 | * done this way (instead of under CONFIG_ARC_PAGE_SIZE_8K) because adhoc |
| 21 | * user code (busybox appletlib.h) expects PAGE_SHIFT to be defined w/o |
| 22 | * using the correct uClibc header and in their build our autoconf.h is |
| 23 | * not available |
| 24 | */ |
| 25 | #define PAGE_SHIFT 13 |
| 26 | #endif |
| 27 | |
| 28 | #ifdef __ASSEMBLY__ |
| 29 | #define PAGE_SIZE (1 << PAGE_SHIFT) |
| 30 | #define PAGE_OFFSET (0x80000000) |
| 31 | #else |
| 32 | #define PAGE_SIZE (1UL << PAGE_SHIFT) /* Default 8K */ |
| 33 | #define PAGE_OFFSET (0x80000000UL) /* Kernel starts at 2G onwards */ |
| 34 | #endif |
| 35 | |
| 36 | #define PAGE_MASK (~(PAGE_SIZE-1)) |
| 37 | |
| 38 | #endif /* !__ASSEMBLY__ */ |
| 39 | |
| 40 | #endif /* __KERNEL__ */ |
| 41 | |
| 42 | #endif |