linux/include/trace/events/devfreq.h
<<
>>
Prefs
   1/* SPDX-License-Identifier: GPL-2.0 */
   2#undef TRACE_SYSTEM
   3#define TRACE_SYSTEM devfreq
   4
   5#if !defined(_TRACE_DEVFREQ_H) || defined(TRACE_HEADER_MULTI_READ)
   6#define _TRACE_DEVFREQ_H
   7
   8#include <linux/devfreq.h>
   9#include <linux/tracepoint.h>
  10
  11TRACE_EVENT(devfreq_monitor,
  12        TP_PROTO(struct devfreq *devfreq),
  13
  14        TP_ARGS(devfreq),
  15
  16        TP_STRUCT__entry(
  17                __field(unsigned long, freq)
  18                __field(unsigned long, busy_time)
  19                __field(unsigned long, total_time)
  20                __field(unsigned int, polling_ms)
  21                __string(dev_name, dev_name(&devfreq->dev))
  22        ),
  23
  24        TP_fast_assign(
  25                __entry->freq = devfreq->previous_freq;
  26                __entry->busy_time = devfreq->last_status.busy_time;
  27                __entry->total_time = devfreq->last_status.total_time;
  28                __entry->polling_ms = devfreq->profile->polling_ms;
  29                __assign_str(dev_name, dev_name(&devfreq->dev));
  30        ),
  31
  32        TP_printk("dev_name=%s freq=%lu polling_ms=%u load=%lu",
  33                __get_str(dev_name), __entry->freq, __entry->polling_ms,
  34                __entry->total_time == 0 ? 0 :
  35                        (100 * __entry->busy_time) / __entry->total_time)
  36);
  37#endif /* _TRACE_DEVFREQ_H */
  38
  39/* This part must be outside protection */
  40#include <trace/define_trace.h>
  41