tools/arch/mips/include/asm/barrier.h

   1 #ifndef _TOOLS_LINUX_ASM_MIPS_BARRIER_H
   2 #define _TOOLS_LINUX_ASM_MIPS_BARRIER_H
   3 /*
   4  * FIXME: This came from tools/perf/perf-sys.h, where it was first introduced
   5  * in c1e028ef40b8d6943b767028ba17d4f2ba020edb, more work needed to make it
   6  * more closely follow the Linux kernel arch/mips/include/asm/barrier.h file.
   7  * Probably when we continue work on tools/ Kconfig support to have all the
   8  * CONFIG_ needed for properly doing that.
   9  */
  10 #define mb()            asm volatile(                                   \
  11                                 ".set   mips2\n\t"                      \
  12                                 "sync\n\t"                              \
  13                                 ".set   mips0"                          \
  14                                 : /* no output */                       \
  15                                 : /* no input */                        \
  16                                 : "memory")
  17 #define wmb()   mb()
  18 #define rmb()   mb()
  19
  20 #endif /* _TOOLS_LINUX_ASM_MIPS_BARRIER_H */