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/* Cache specification
*
* Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* Modified by Matsushita Electric Industrial Co., Ltd.
* Modifications:
* 13-Nov-2006 MEI Add L1_CACHE_SHIFT_MAX definition.
* 29-Jul-2008 MEI Add define for MN10300_HAS_AREAPURGE_REG.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_PROC_CACHE_H
#define _ASM_PROC_CACHE_H
/*
* L1 cache
*/
#define L1_CACHE_NWAYS 4 /* number of ways in caches */
#define L1_CACHE_NENTRIES 128 /* number of entries in each way */
#define L1_CACHE_BYTES 32 /* bytes per entry */
#define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
#define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
#define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
#define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */
#define L1_CACHE_TAG_ENTRY 0x00000fe0 /* cache tag entry address mask */
#define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */
#define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY)
/*
* specification of the interval between interrupt checking intervals whilst
* managing the cache with the interrupts disabled
*/
#define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4
/*
* The size of range at which it becomes more economical to just flush the
* whole cache rather than trying to flush the specified range.
*/
#define MN10300_DCACHE_FLUSH_BORDER \
+(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
#define MN10300_DCACHE_FLUSH_INV_BORDER \
+(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
#endif /* _ASM_PROC_CACHE_H */
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