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7f386ac327
Create general kernel debugger cache flushing for MN10300 and get rid of the old stuff that gdbstub was using. Signed-off-by: David Howells <dhowells@redhat.com>
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/* Cache specification
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*
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* Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* Modified by Matsushita Electric Industrial Co., Ltd.
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* Modifications:
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* 13-Nov-2006 MEI Add L1_CACHE_SHIFT_MAX definition.
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* 29-Jul-2008 MEI Add define for MN10300_HAS_AREAPURGE_REG.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_PROC_CACHE_H
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#define _ASM_PROC_CACHE_H
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/*
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* L1 cache
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*/
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#define L1_CACHE_NWAYS 4 /* number of ways in caches */
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#define L1_CACHE_NENTRIES 128 /* number of entries in each way */
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#define L1_CACHE_BYTES 32 /* bytes per entry */
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#define L1_CACHE_SHIFT 5 /* shift for bytes per entry */
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#define L1_CACHE_WAYDISP 0x1000 /* distance from one way to the next */
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#define L1_CACHE_TAG_VALID 0x00000001 /* cache tag valid bit */
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#define L1_CACHE_TAG_DIRTY 0x00000008 /* data cache tag dirty bit */
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#define L1_CACHE_TAG_ENTRY 0x00000fe0 /* cache tag entry address mask */
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#define L1_CACHE_TAG_ADDRESS 0xfffff000 /* cache tag line address mask */
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#define L1_CACHE_TAG_MASK +(L1_CACHE_TAG_ADDRESS|L1_CACHE_TAG_ENTRY)
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/*
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* specification of the interval between interrupt checking intervals whilst
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* managing the cache with the interrupts disabled
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*/
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#define MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL 4
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/*
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* The size of range at which it becomes more economical to just flush the
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* whole cache rather than trying to flush the specified range.
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*/
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#define MN10300_DCACHE_FLUSH_BORDER \
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+(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
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#define MN10300_DCACHE_FLUSH_INV_BORDER \
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+(L1_CACHE_NWAYS * L1_CACHE_NENTRIES * L1_CACHE_BYTES)
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#endif /* _ASM_PROC_CACHE_H */
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