perf_counter: hook up the tracepoint events

Impact: new perfcounters feature

Enable usage of tracepoints as perf counter events.

tracepoint event ids can be found in /debug/tracing/event/*/*/id
and (for now) are represented as -65536+id in the type field.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Orig-LKML-Reference: <20090319194233.744044174@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 0 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 38a2ecd47c37..4f647142f2e6 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -947,6 +947,11 @@ config PERF_COUNTERS
 
           Say Y if unsure.
 
+config EVENT_PROFILE
+        bool "Tracepoint profile sources"
+        depends on PERF_COUNTERS && EVENT_TRACER
+        default y
+
 endmenu
 
 config VM_EVENT_COUNTERS