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perf tools: Move tile barrier.h stuff to tools/arch/tile/include/asm/barrier.h

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We will need it for atomic.h, so move it from the ad-hoc tools/perf/
place to a tools/ subset of the kernel arch/ hierarchy.

Cc: Adrian Hunter <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2015-05-08 10:02:00 -03:00
commit d3bd708114
4 changed files with 18 additions and 3 deletions
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15
tools/arch/tile/include/asm/barrier.h Normal file
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@ -0,0 +1,15 @@
#ifndef _TOOLS_LINUX_ASM_TILE_BARRIER_H
#define _TOOLS_LINUX_ASM_TILE_BARRIER_H
/*
* FIXME: This came from tools/perf/perf-sys.h, where it was first introduced
* in 620830b6954913647b7c7f68920cf48eddf6ad92, more work needed to make it
* more closely follow the Linux kernel arch/tile/include/asm/barrier.h file.
* Probably when we continue work on tools/ Kconfig support to have all the
* CONFIG_ needed for properly doing that.
*/
#define mb() asm volatile ("mf" ::: "memory")
#define wmb() mb()
#define rmb() mb()
#endif /* _TOOLS_LINUX_ASM_TILE_BARRIER_H */