Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $ |
2 | * | |
3 | * include/asm-sh/cache.h | |
4 | * | |
5 | * Copyright 1999 (C) Niibe Yutaka | |
6 | * Copyright 2002, 2003 (C) Paul Mundt | |
7 | */ | |
8 | #ifndef __ASM_SH_CACHE_H | |
9 | #define __ASM_SH_CACHE_H | |
10 | #ifdef __KERNEL__ | |
11 | ||
12 | #include <asm/cpu/cache.h> | |
13 | #include <asm/cpu/cacheflush.h> | |
14 | ||
15 | #define SH_CACHE_VALID 1 | |
16 | #define SH_CACHE_UPDATED 2 | |
17 | #define SH_CACHE_COMBINED 4 | |
18 | #define SH_CACHE_ASSOC 8 | |
19 | ||
20 | #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) | |
21 | #define SMP_CACHE_BYTES L1_CACHE_BYTES | |
22 | ||
23 | #define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) | |
24 | ||
25 | #define L1_CACHE_SHIFT_MAX 5 /* largest L1 which this arch supports */ | |
26 | ||
27 | struct cache_info { | |
28 | unsigned int ways; | |
29 | unsigned int sets; | |
30 | unsigned int linesz; | |
31 | ||
32 | unsigned int way_incr; | |
33 | ||
34 | unsigned int entry_shift; | |
35 | unsigned int entry_mask; | |
36 | ||
37 | unsigned long flags; | |
38 | }; | |
39 | ||
40 | /* Flush (write-back only) a region (smaller than a page) */ | |
41 | extern void __flush_wback_region(void *start, int size); | |
42 | /* Flush (write-back & invalidate) a region (smaller than a page) */ | |
43 | extern void __flush_purge_region(void *start, int size); | |
44 | /* Flush (invalidate only) a region (smaller than a page) */ | |
45 | extern void __flush_invalidate_region(void *start, int size); | |
46 | ||
47 | #endif /* __KERNEL__ */ | |
48 | #endif /* __ASM_SH_CACHE_H */ |