diff --git a/[refs] b/[refs]
index 3ac1bec2a27b..981c40719d2e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7fadc1e8fe89698caac213ff6d631b811fc7b393
+refs/heads/master: 9854783e55d5f42a0ea3e951fad3a5910023c1b1
diff --git a/trunk/tools/perf/perf.h b/trunk/tools/perf/perf.h
index 2c340e7da458..8a68ad39e1b6 100644
--- a/trunk/tools/perf/perf.h
+++ b/trunk/tools/perf/perf.h
@@ -98,6 +98,12 @@ void get_term_dimensions(struct winsize *ws);
 #define CPUINFO_PROC	"cpu model"
 #endif
 
+#ifdef __arc__
+#define rmb()		asm volatile("" ::: "memory")
+#define cpu_relax()	rmb()
+#define CPUINFO_PROC	"Processor"
+#endif
+
 #include <time.h>
 #include <unistd.h>
 #include <sys/types.h>