perf_counter: add PERF_RECORD_CONFIG
Much like CONFIG_RECORD_GROUP records the hw_event.config to
identify the values, allow to record this for all counters.
[ Impact: extend perfcounter output record format ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090508170028.923228280@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 88f863e..0e6303d 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -104,6 +104,7 @@
PERF_RECORD_ADDR = 1U << 3,
PERF_RECORD_GROUP = 1U << 4,
PERF_RECORD_CALLCHAIN = 1U << 5,
+ PERF_RECORD_CONFIG = 1U << 6,
};
/*
@@ -258,6 +259,7 @@
* { u32 pid, tid; } && PERF_RECORD_TID
* { u64 time; } && PERF_RECORD_TIME
* { u64 addr; } && PERF_RECORD_ADDR
+ * { u64 config; } && PERF_RECORD_CONFIG
*
* { u64 nr;
* { u64 event, val; } cnt[nr]; } && PERF_RECORD_GROUP