summaryrefslogblamecommitdiff
path: root/include/asm-sh/cache.h
blob: 656fdfe9e8b445ee16e6f833e62f7e10bc783a20 (plain) (tree) 
1da177e4c3f4
























1da177e4c3f4






















1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
























                                                                              





















                                                                    
/* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
 *
 * include/asm-sh/cache.h
 *
 * Copyright 1999 (C) Niibe Yutaka
 * Copyright 2002, 2003 (C) Paul Mundt
 */
#ifndef __ASM_SH_CACHE_H
#define __ASM_SH_CACHE_H
#ifdef __KERNEL__

#include <asm/cpu/cache.h>
#include <asm/cpu/cacheflush.h>

#define SH_CACHE_VALID		1
#define SH_CACHE_UPDATED	2
#define SH_CACHE_COMBINED	4
#define SH_CACHE_ASSOC		8

#define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
#define SMP_CACHE_BYTES		L1_CACHE_BYTES

#define L1_CACHE_ALIGN(x)	(((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))

struct cache_info {
	unsigned int ways;
	unsigned int sets;
	unsigned int linesz;

	unsigned int way_incr;

	unsigned int entry_shift;
	unsigned int entry_mask;

	unsigned long flags;
};

/* Flush (write-back only) a region (smaller than a page) */
extern void __flush_wback_region(void *start, int size);
/* Flush (write-back & invalidate) a region (smaller than a page) */
extern void __flush_purge_region(void *start, int size);
/* Flush (invalidate only) a region (smaller than a page) */
extern void __flush_invalidate_region(void *start, int size);

#endif /* __KERNEL__ */
#endif /* __ASM_SH_CACHE_H */