diff options
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 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 */ |