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| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-18 03:05:42 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-23 07:55:20 +0200 |
| commit | bb8985586b7a906e116db835c64773b7a7d51663 (patch) | |
| tree | de93ae58e88cc563d95cc124a73f3930594c6100 /arch/x86/include/asm/cache.h | |
| parent | x86, um: initial part of asm-um move (diff) | |
| download | linux-bb8985586b7a906e116db835c64773b7a7d51663.tar.xz linux-bb8985586b7a906e116db835c64773b7a7d51663.zip | |
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/cache.h')
| -rw-r--r-- | arch/x86/include/asm/cache.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h new file mode 100644 index 000000000000..ea3f1cc06a97 --- /dev/null +++ b/arch/x86/include/asm/cache.h @@ -0,0 +1,20 @@ +#ifndef ASM_X86__CACHE_H +#define ASM_X86__CACHE_H + +/* L1 cache line size */ +#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) + +#define __read_mostly __attribute__((__section__(".data.read_mostly"))) + +#ifdef CONFIG_X86_VSMP +/* vSMP Internode cacheline shift */ +#define INTERNODE_CACHE_SHIFT (12) +#ifdef CONFIG_SMP +#define __cacheline_aligned_in_smp \ + __attribute__((__aligned__(1 << (INTERNODE_CACHE_SHIFT)))) \ + __attribute__((__section__(".data.page_aligned"))) +#endif +#endif + +#endif /* ASM_X86__CACHE_H */ |