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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-11 13:27:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-11 13:27:47 +0200 |
| commit | c4c0c56a7a85ed5725786219e4fbca7e840b1531 (patch) | |
| tree | c9d6b35a571fd5e80ddf5bf4a60142480eaa18d8 /arch/ia64/include/asm/cache.h | |
| parent | rcu classic: new algorithm for callbacks-processing(v2) (diff) | |
| parent | Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/c... (diff) | |
| download | linux-c4c0c56a7a85ed5725786219e4fbca7e840b1531.tar.xz linux-c4c0c56a7a85ed5725786219e4fbca7e840b1531.zip | |
Merge branch 'linus' into core/rcu
Diffstat (limited to 'arch/ia64/include/asm/cache.h')
| -rw-r--r-- | arch/ia64/include/asm/cache.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h new file mode 100644 index 000000000000..e7482bd628ff --- /dev/null +++ b/arch/ia64/include/asm/cache.h @@ -0,0 +1,29 @@ +#ifndef _ASM_IA64_CACHE_H +#define _ASM_IA64_CACHE_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 */ |