linux/include/asm-ia64/cache.h
Kyle McMartin 804f1594cc [PATCH] Move read_mostly definition to asm/cache.h
Seems like needless clutter having a bunch of #if defined(CONFIG_$ARCH) in
include/linux/cache.h.  Move the per architecture section definition to
asm/cache.h, and keep the if-not-defined dummy case in linux/cache.h to
catch architectures which don't implement the section.

Verified that symbols still go in .data.read_mostly on parisc,
and the compile doesn't break.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-23 07:38:10 -08:00

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C

#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
#define __read_mostly __attribute__((__section__(".data.read_mostly")))
#endif /* _ASM_IA64_CACHE_H */