cache.h
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上传日期:2013-04-10
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- #ifndef _ASM_IA64_CACHE_H
- #define _ASM_IA64_CACHE_H
- #include <linux/config.h>
- /*
- * Copyright (C) 1998-2000 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@hpl.hp.com>
- */
- /* Bytes per L1 (data) cache line. */
- #define L1_CACHE_SHIFT CONFIG_IA64_L1_CACHE_SHIFT
- #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
- #ifdef CONFIG_SMP
- # define SMP_CACHE_SHIFT L1_CACHE_SHIFT
- # define SMP_CACHE_BYTES L1_CACHE_BYTES
- #else
- /*
- * The "aligned" directive can only _increase_ alignment, so this is
- * safe and provides an easy way to avoid wasting space on a
- * uni-processor:
- */
- # define SMP_CACHE_SHIFT 3
- # define SMP_CACHE_BYTES (1 << 3)
- #endif
- #endif /* _ASM_IA64_CACHE_H */