3 * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
6 * Modified by Matsushita Electric Industrial Co., Ltd.
8 * 13-Nov-2006 MEI Add L1_CACHE_SHIFT_MAX definition.
9 * 29-Jul-2008 MEI Add define for MN10300_HAS_AREAPURGE_REG.
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
16 #ifndef _ASM_PROC_CACHE_H
17 #define _ASM_PROC_CACHE_H
22 #define L1_CACHE_NWAYS 4 /* number of ways in caches */
23 #define L1_CACHE_NENTRIES 128 /* number of entries in each way */
24 #define L1_CACHE_BYTES 32 /* bytes per entry */
25 #define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
26 #define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
28 #define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
29 #define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */
30 #define L1_CACHE_TAG_ENTRY 0x00000fe0 /* cache tag entry address mask */
31 #define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */
32 #define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY)
35 * specification of the interval between interrupt checking intervals whilst
36 * managing the cache with the interrupts disabled
38 #define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4
41 * The size of range at which it becomes more economical to just flush the
42 * whole cache rather than trying to flush the specified range.
44 #define MN10300_DCACHE_FLUSH_BORDER \
45 +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
46 #define MN10300_DCACHE_FLUSH_INV_BORDER \
47 +(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
49 #endif /* _ASM_PROC_CACHE_H */