From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 25 Jun 2009 05:41:57 +0000 (+0900)
Subject: perf_counter tools: add cpu_relax()/rmb() definitions for sh.
X-Git-Tag: v2.6.31-rc2~17^2~9
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=febe8345353e8873e43f2c2c9792d062c770b22b;p=profile%2Fivi%2Fkernel-x86-ivi.git

perf_counter tools: add cpu_relax()/rmb() definitions for sh.

Simple cpu_relax()/rmb() stubs that perf needs, which were inadvertently
omitted from the sh HAVE_PERF_COUNTERS patch.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index ceb68aa..f735b69 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -19,6 +19,16 @@
 #define cpu_relax()	asm volatile("" ::: "memory");
 #endif
 
+#ifdef __sh__
+#include "../../arch/sh/include/asm/unistd.h"
+#if defined(__SH4A__) || defined(__SH5__)
+# define rmb()		asm volatile("synco" ::: "memory")
+#else
+# define rmb()		asm volatile("" ::: "memory")
+#endif
+#define cpu_relax()	asm volatile("" ::: "memory")
+#endif
+
 #include <time.h>
 #include <unistd.h>
 #include <sys/types.h>