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Linux Cross Reference
Linux/include/linux/cache.h

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~ 
  1 #ifndef __LINUX_CACHE_H
  2 #define __LINUX_CACHE_H
  3 
  4 #include <asm/cache.h>
  5 
  6 #ifndef L1_CACHE_ALIGN
  7 #define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
  8 #endif
  9 
 10 #ifndef SMP_CACHE_BYTES
 11 #define SMP_CACHE_BYTES L1_CACHE_BYTES
 12 #endif
 13 
 14 #ifndef ____cacheline_aligned
 15 #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES)))
 16 #endif
 17 
 18 #ifndef __cacheline_aligned
 19 #ifdef MODULE
 20 #define __cacheline_aligned ____cacheline_aligned
 21 #else
 22 #define __cacheline_aligned                                     \
 23   __attribute__((__aligned__(SMP_CACHE_BYTES),                  \
 24                  __section__(".data.cacheline_aligned")))
 25 #endif
 26 #endif /* __cacheline_aligned */
 27 
 28 #endif /* __LINUX_CACHE_H */
 29
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