49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
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/* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
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*
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* include/asm-sh/cache.h
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*
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* Copyright 1999 (C) Niibe Yutaka
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* Copyright 2002, 2003 (C) Paul Mundt
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*/
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#ifndef __ASM_SH_CACHE_H
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#define __ASM_SH_CACHE_H
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#ifdef __KERNEL__
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#include <asm/cpu/cache.h>
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#include <asm/cpu/cacheflush.h>
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#define SH_CACHE_VALID 1
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#define SH_CACHE_UPDATED 2
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#define SH_CACHE_COMBINED 4
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#define SH_CACHE_ASSOC 8
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#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
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#define SMP_CACHE_BYTES L1_CACHE_BYTES
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#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
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#define L1_CACHE_SHIFT_MAX 5 /* largest L1 which this arch supports */
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struct cache_info {
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unsigned int ways;
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unsigned int sets;
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unsigned int linesz;
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unsigned int way_incr;
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unsigned int entry_shift;
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unsigned int entry_mask;
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unsigned long flags;
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};
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/* Flush (write-back only) a region (smaller than a page) */
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extern void __flush_wback_region(void *start, int size);
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/* Flush (write-back & invalidate) a region (smaller than a page) */
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extern void __flush_purge_region(void *start, int size);
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/* Flush (invalidate only) a region (smaller than a page) */
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extern void __flush_invalidate_region(void *start, int size);
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#endif /* __KERNEL__ */
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#endif /* __ASM_SH_CACHE_H */
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