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-rw-r--r--include/trace/events/devfreq.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/trace/events/devfreq.h b/include/trace/events/devfreq.h
new file mode 100644
index 000000000..cf5b87721
--- /dev/null
+++ b/include/trace/events/devfreq.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM devfreq
+
+#if !defined(_TRACE_DEVFREQ_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_DEVFREQ_H
+
+#include <linux/devfreq.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(devfreq_monitor,
+ TP_PROTO(struct devfreq *devfreq),
+
+ TP_ARGS(devfreq),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, freq)
+ __field(unsigned long, busy_time)
+ __field(unsigned long, total_time)
+ __field(unsigned int, polling_ms)
+ __string(dev_name, dev_name(&devfreq->dev))
+ ),
+
+ TP_fast_assign(
+ __entry->freq = devfreq->previous_freq;
+ __entry->busy_time = devfreq->last_status.busy_time;
+ __entry->total_time = devfreq->last_status.total_time;
+ __entry->polling_ms = devfreq->profile->polling_ms;
+ __assign_str(dev_name, dev_name(&devfreq->dev));
+ ),
+
+ TP_printk("dev_name=%s freq=%lu polling_ms=%u load=%lu",
+ __get_str(dev_name), __entry->freq, __entry->polling_ms,
+ __entry->total_time == 0 ? 0 :
+ (100 * __entry->busy_time) / __entry->total_time)
+);
+#endif /* _TRACE_DEVFREQ_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>