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 000000000000..ea3f1cc06a97 --- /dev/null +++ b/arch/x86/include/asm/cache.h | |||
@@ -0,0 +1,20 @@ | |||
1 | #ifndef ASM_X86__CACHE_H | ||
2 | #define ASM_X86__CACHE_H | ||
3 | |||
4 | /* L1 cache line size */ | ||
5 | #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) | ||
6 | #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) | ||
7 | |||
8 | #define __read_mostly __attribute__((__section__(".data.read_mostly"))) | ||
9 | |||
10 | #ifdef CONFIG_X86_VSMP | ||
11 | /* vSMP Internode cacheline shift */ | ||
12 | #define INTERNODE_CACHE_SHIFT (12) | ||
13 | #ifdef CONFIG_SMP | ||
14 | #define __cacheline_aligned_in_smp \ | ||
15 | __attribute__((__aligned__(1 << (INTERNODE_CACHE_SHIFT)))) \ | ||
16 | __attribute__((__section__(".data.page_aligned"))) | ||
17 | #endif | ||
18 | #endif | ||
19 | |||
20 | #endif /* ASM_X86__CACHE_H */ | ||