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perf tools: Move s390 barrier.h stuff to tools/arch/s390/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 <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zv4x77074resrkl4ayzf5e7d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2015-05-06 18:44:53 -03:00
parent e43a19c9c2
commit 07d207ac0c
4 changed files with 33 additions and 3 deletions
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30
tools/arch/s390/include/asm/barrier.h Normal file
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@ -0,0 +1,30 @@
/*
* Copied from the kernel sources:
*
* Copyright IBM Corp. 1999, 2009
*
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
#ifndef __TOOLS_LINUX_ASM_BARRIER_H
#define __TOOLS_LINUX_ASM_BARRIER_H
/*
* Force strict CPU ordering.
* And yes, this is required on UP too when we're talking
* to devices.
*/
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
/* Fast-BCR without checkpoint synchronization */
#define __ASM_BARRIER "bcr 14,0\n"
#else
#define __ASM_BARRIER "bcr 15,0\n"
#endif
#define mb() do { asm volatile(__ASM_BARRIER : : : "memory"); } while (0)
#define rmb() mb()
#define wmb() mb()
#endif /* __TOOLS_LIB_ASM_BARRIER_H */

2
tools/include/asm/barrier.h
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@ -2,4 +2,6 @@
#include "../../arch/x86/include/asm/barrier.h"
#elif defined(__powerpc__)
#include "../../arch/powerpc/include/asm/barrier.h"
#elif defined(__s390__)
#include "../../arch/s390/include/asm/barrier.h"
#endif

1
tools/perf/MANIFEST
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@ -1,5 +1,6 @@
tools/perf
tools/arch/powerpc/include/asm/barrier.h
tools/arch/s390/include/asm/barrier.h
tools/arch/x86/include/asm/barrier.h
tools/scripts
tools/build

3
tools/perf/perf-sys.h
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@ -42,9 +42,6 @@
#endif
#ifdef __s390__
#define mb() asm volatile("bcr 15,0" ::: "memory")
#define wmb() asm volatile("bcr 15,0" ::: "memory")
#define rmb() asm volatile("bcr 15,0" ::: "memory")
#define CPUINFO_PROC {"vendor_id"}
#endif