1 /* MN10300 cache management registers
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
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.
15 #include <asm/cpu-regs.h>
16 #include <proc/cache.h>
19 #define L1_CACHE_DISPARITY (L1_CACHE_NENTRIES * L1_CACHE_BYTES)
21 #define L1_CACHE_DISPARITY L1_CACHE_NENTRIES * L1_CACHE_BYTES
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
29 #define DCACHE_PURGE(WAY, ENTRY) \
30 __SYSREG(0xc8400000 + (WAY) * L1_CACHE_WAYDISP + \
31 (ENTRY) * L1_CACHE_BYTES, u32)
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)
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)
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)
54 #endif /* _ASM_CACHE_H */