include/trace/events/devfreq.h

   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
  11 TRACE_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>