diff mbox series

[v3,5/7] perf tools: Use ioctl to communicate driver configuration to kernel

Message ID 1531950487-24554-6-git-send-email-mathieu.poirier@linaro.org
State New
Headers show
Series perf: Add ioctl for PMU driver configuration | expand

Commit Message

Mathieu Poirier July 18, 2018, 9:48 p.m. UTC 
Following in the footsteps of what was done for filters, adding the
necessary mechanic needed to push down driver specific configuration
to the kernel using an ioctl. By proceeding this way PMU specific
configuration such as CoreSight sink specification can be communicated
to each event.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

---
 tools/perf/util/evsel.c | 7 +++++++
 tools/perf/util/evsel.h | 1 +
 2 files changed, 8 insertions(+)

-- 
2.7.4
diff mbox series

Patch

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 94fce4f537e9..534aca4c642c 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1162,6 +1162,13 @@  static int perf_evsel__append_filter(struct perf_evsel *evsel,
 	return -1;
 }
 
+int perf_evsel__apply_drv_config(struct perf_evsel *evsel, const char *config)
+{
+	return perf_evsel__run_ioctl(evsel,
+				     PERF_EVENT_IOC_SET_DRV_CONFIG,
+				     (void *)config);
+}
+
 int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter)
 {
 	return perf_evsel__append_filter(evsel, "(%s) && (%s)", filter);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index d277930b19a1..0f671bd2a988 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -271,6 +271,7 @@  int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter);
 int perf_evsel__append_addr_filter(struct perf_evsel *evsel,
 				   const char *filter);
 int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
+int perf_evsel__apply_drv_config(struct perf_evsel *evsel, const char *config);
 int perf_evsel__enable(struct perf_evsel *evsel);
 int perf_evsel__disable(struct perf_evsel *evsel);