diff --git a/[refs] b/[refs]
index 592e43a89127..b8d6beb1da70 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cd09c0c40a971549800ce6a7e53c63f5139dd175
+refs/heads/master: c37e17497e01fc0f5d2d6feb5723b210b3ab8890
diff --git a/trunk/include/linux/perf_event.h b/trunk/include/linux/perf_event.h
index 564769cdb473..08855613ceb3 100644
--- a/trunk/include/linux/perf_event.h
+++ b/trunk/include/linux/perf_event.h
@@ -54,6 +54,7 @@ enum perf_hw_id {
 	PERF_COUNT_HW_BUS_CYCLES		= 6,
 	PERF_COUNT_HW_STALLED_CYCLES_FRONTEND	= 7,
 	PERF_COUNT_HW_STALLED_CYCLES_BACKEND	= 8,
+	PERF_COUNT_HW_REF_CPU_CYCLES		= 9,
 
 	PERF_COUNT_HW_MAX,			/* non-ABI */
 };