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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/trace/events/devfreq.h
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/* SPDX-License-Identifier: GPL-2.0 */

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#undef TRACE_SYSTEM

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#define TRACE_SYSTEM devfreq

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#if !defined(_TRACE_DEVFREQ_H) || defined(TRACE_HEADER_MULTI_READ)

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#define _TRACE_DEVFREQ_H

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#include <linux/devfreq.h>

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#include <linux/tracepoint.h>

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TRACE_EVENT(devfreq_frequency,

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	TP_PROTO(struct devfreq *devfreq, unsigned long freq,

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		 unsigned long prev_freq),

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	TP_ARGS(devfreq, freq, prev_freq),

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	TP_STRUCT__entry(

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		__string(dev_name, dev_name(&devfreq->dev))

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		__field(unsigned long, freq)

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		__field(unsigned long, prev_freq)

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		__field(unsigned long, busy_time)

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		__field(unsigned long, total_time)

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	),

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	TP_fast_assign(

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		__assign_str(dev_name);

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		__entry->freq = freq;

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		__entry->prev_freq = prev_freq;

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		__entry->busy_time = devfreq->last_status.busy_time;

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		__entry->total_time = devfreq->last_status.total_time;

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	),

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	TP_printk("dev_name=%-30s freq=%-12lu prev_freq=%-12lu load=%-2lu",

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		__get_str(dev_name), __entry->freq, __entry->prev_freq,

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		__entry->total_time == 0 ? 0 :

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			(100 * __entry->busy_time) / __entry->total_time)

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);

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TRACE_EVENT(devfreq_monitor,

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	TP_PROTO(struct devfreq *devfreq),

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	TP_ARGS(devfreq),

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	TP_STRUCT__entry(

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		__field(unsigned long, freq)

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		__field(unsigned long, busy_time)

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		__field(unsigned long, total_time)

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		__field(unsigned int, polling_ms)

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		__string(dev_name, dev_name(&devfreq->dev))

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	),

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	TP_fast_assign(

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		__entry->freq = devfreq->previous_freq;

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		__entry->busy_time = devfreq->last_status.busy_time;

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		__entry->total_time = devfreq->last_status.total_time;

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		__entry->polling_ms = devfreq->profile->polling_ms;

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		__assign_str(dev_name);

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	),

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	TP_printk("dev_name=%-30s freq=%-12lu polling_ms=%-3u load=%-2lu",

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		__get_str(dev_name), __entry->freq, __entry->polling_ms,

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		__entry->total_time == 0 ? 0 :

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			(100 * __entry->busy_time) / __entry->total_time)

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);

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#endif /* _TRACE_DEVFREQ_H */

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/* This part must be outside protection */

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#include <trace/define_trace.h>

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