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-rw-r--r--arch/sh/include/asm/cache.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
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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 <linux/init.h>
13#include <cpu/cache.h>
14
15#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
16
17#define __read_mostly __attribute__((__section__(".data.read_mostly")))
18
19#ifndef __ASSEMBLY__
20struct cache_info {
21 unsigned int ways; /* Number of cache ways */
22 unsigned int sets; /* Number of cache sets */
23 unsigned int linesz; /* Cache line size (bytes) */
24
25 unsigned int way_size; /* sets * line size */
26
27 /*
28 * way_incr is the address offset for accessing the next way
29 * in memory mapped cache array ops.
30 */
31 unsigned int way_incr;
32 unsigned int entry_shift;
33 unsigned int entry_mask;
34
35 /*
36 * Compute a mask which selects the address bits which overlap between
37 * 1. those used to select the cache set during indexing
38 * 2. those in the physical page number.
39 */
40 unsigned int alias_mask;
41
42 unsigned int n_aliases; /* Number of aliases */
43
44 unsigned long flags;
45};
46
47int __init detect_cpu_and_cache_system(void);
48
49#endif /* __ASSEMBLY__ */
50#endif /* __KERNEL__ */
51#endif /* __ASM_SH_CACHE_H */