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[mv-sheeva.git] / arch / mn10300 / include / asm / cache.h
1 /* MN10300 cache management registers
2  *
3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells (dhowells@redhat.com)
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public Licence
8  * as published by the Free Software Foundation; either version
9  * 2 of the Licence, or (at your option) any later version.
10  */
11
12 #ifndef _ASM_CACHE_H
13 #define _ASM_CACHE_H
14
15 #include <asm/cpu-regs.h>
16 #include <proc/cache.h>
17
18 #ifndef __ASSEMBLY__
19 #define L1_CACHE_DISPARITY      (L1_CACHE_NENTRIES * L1_CACHE_BYTES)
20 #else
21 #define L1_CACHE_DISPARITY      L1_CACHE_NENTRIES * L1_CACHE_BYTES
22 #endif
23
24 /* data cache purge registers
25  * - read from the register to unconditionally purge that cache line
26  * - write address & 0xffffff00 to conditionally purge that cache line
27  *   - clear LSB to request invalidation as well
28  */
29 #define DCACHE_PURGE(WAY, ENTRY) \
30         __SYSREG(0xc8400000 + (WAY) * L1_CACHE_WAYDISP + \
31                  (ENTRY) * L1_CACHE_BYTES, u32)
32
33 #define DCACHE_PURGE_WAY0(ENTRY) \
34         __SYSREG(0xc8400000 + 0 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
35 #define DCACHE_PURGE_WAY1(ENTRY) \
36         __SYSREG(0xc8400000 + 1 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
37 #define DCACHE_PURGE_WAY2(ENTRY) \
38         __SYSREG(0xc8400000 + 2 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
39 #define DCACHE_PURGE_WAY3(ENTRY) \
40         __SYSREG(0xc8400000 + 3 * L1_CACHE_WAYDISP + (ENTRY) * L1_CACHE_BYTES, u32)
41
42 /* instruction cache access registers */
43 #define ICACHE_DATA(WAY, ENTRY, OFF) \
44         __SYSREG(0xc8000000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10 + (OFF) * 4, u32)
45 #define ICACHE_TAG(WAY, ENTRY)   \
46         __SYSREG(0xc8100000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10, u32)
47
48 /* instruction cache access registers */
49 #define DCACHE_DATA(WAY, ENTRY, OFF) \
50         __SYSREG(0xc8200000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10 + (OFF) * 4, u32)
51 #define DCACHE_TAG(WAY, ENTRY)   \
52         __SYSREG(0xc8300000 + (WAY) * L1_CACHE_WAYDISP + (ENTRY) * 0x10, u32)
53
54 #endif /* _ASM_CACHE_H */