1 /* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
3 * include/asm-sh/cache.h
5 * Copyright 1999 (C) Niibe Yutaka
6 * Copyright 2002, 2003 (C) Paul Mundt
8 #ifndef __ASM_SH_CACHE_H
9 #define __ASM_SH_CACHE_H
12 #include <linux/init.h>
13 #include <asm/cpu/cache.h>
15 #define SH_CACHE_VALID 1
16 #define SH_CACHE_UPDATED 2
17 #define SH_CACHE_COMBINED 4
18 #define SH_CACHE_ASSOC 8
20 #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
21 #define SMP_CACHE_BYTES L1_CACHE_BYTES
23 #define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
27 unsigned int ways
; /* Number of cache ways */
28 unsigned int sets
; /* Number of cache sets */
29 unsigned int linesz
; /* Cache line size (bytes) */
31 unsigned int way_size
; /* sets * line size */
34 * way_incr is the address offset for accessing the next way
35 * in memory mapped cache array ops.
37 unsigned int way_incr
;
38 unsigned int entry_shift
;
39 unsigned int entry_mask
;
42 * Compute a mask which selects the address bits which overlap between
43 * 1. those used to select the cache set during indexing
44 * 2. those in the physical page number.
46 unsigned int alias_mask
;
48 unsigned int n_aliases
; /* Number of aliases */
53 int __init
detect_cpu_and_cache_system(void);
55 #endif /* __ASSEMBLY__ */
56 #endif /* __KERNEL__ */
57 #endif /* __ASM_SH_CACHE_H */