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3be80aae VG |
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 |