From 12310e9c1b9a53896e4df0459039dd125f62aa9b Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 22 Jun 2009 12:08:22 +0200
Subject: [S390] Enable tick based perf_counter on s390.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 tools/perf/perf.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'tools/perf/perf.h')

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index bccb529dac08..ceb68aa51f7f 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -13,6 +13,12 @@
 #define cpu_relax()	asm volatile ("" ::: "memory");
 #endif
 
+#ifdef __s390__
+#include "../../arch/s390/include/asm/unistd.h"
+#define rmb()		asm volatile("bcr 15,0" ::: "memory")
+#define cpu_relax()	asm volatile("" ::: "memory");
+#endif
+
 #include <time.h>
 #include <unistd.h>
 #include <sys/types.h>
-- 
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