Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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>