From bb8985586b7a906e116db835c64773b7a7d51663 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Aug 2008 21:05:42 -0400 Subject: x86, um: ... and asm-x86 move Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/cache.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 arch/x86/include/asm/cache.h (limited to 'arch/x86/include/asm/cache.h') diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h new file mode 100644 index 00000000000..ea3f1cc06a9 --- /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 */ -- cgit v1.2.3