include/asm-x86_64/cache.h

   1 /*
   2  * include/asm-x8664/cache.h
   3  */
   4 #ifndef __ARCH_X8664_CACHE_H
   5 #define __ARCH_X8664_CACHE_H
   6
   7 #include <linux/config.h>
   8
   9 /* L1 cache line size */
  10 #define L1_CACHE_SHIFT  (CONFIG_X86_L1_CACHE_SHIFT)
  11 #define L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
  12
  13 #ifdef CONFIG_X86_VSMP
  14
  15 /* vSMP Internode cacheline shift */
  16 #define INTERNODE_CACHE_SHIFT (12)
  17 #ifdef CONFIG_SMP
  18 #define __cacheline_aligned_in_smp                                      \
  19        __attribute__((__aligned__(1 << (INTERNODE_CACHE_SHIFT))))         \
  20        __attribute__((__section__(".data.page_aligned")))
  21 #endif
  22
  23 #endif
  24
  25 #define __read_mostly __attribute__((__section__(".data.read_mostly")))
  26
  27 #endif