cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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devfreq.h (1962B)

      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_frequency,
     12	TP_PROTO(struct devfreq *devfreq, unsigned long freq,
     13		 unsigned long prev_freq),
     14
     15	TP_ARGS(devfreq, freq, prev_freq),
     16
     17	TP_STRUCT__entry(
     18		__string(dev_name, dev_name(&devfreq->dev))
     19		__field(unsigned long, freq)
     20		__field(unsigned long, prev_freq)
     21		__field(unsigned long, busy_time)
     22		__field(unsigned long, total_time)
     23	),
     24
     25	TP_fast_assign(
     26		__assign_str(dev_name, dev_name(&devfreq->dev));
     27		__entry->freq = freq;
     28		__entry->prev_freq = prev_freq;
     29		__entry->busy_time = devfreq->last_status.busy_time;
     30		__entry->total_time = devfreq->last_status.total_time;
     31	),
     32
     33	TP_printk("dev_name=%-30s freq=%-12lu prev_freq=%-12lu load=%-2lu",
     34		__get_str(dev_name), __entry->freq, __entry->prev_freq,
     35		__entry->total_time == 0 ? 0 :
     36			(100 * __entry->busy_time) / __entry->total_time)
     37);
     38
     39TRACE_EVENT(devfreq_monitor,
     40	TP_PROTO(struct devfreq *devfreq),
     41
     42	TP_ARGS(devfreq),
     43
     44	TP_STRUCT__entry(
     45		__field(unsigned long, freq)
     46		__field(unsigned long, busy_time)
     47		__field(unsigned long, total_time)
     48		__field(unsigned int, polling_ms)
     49		__string(dev_name, dev_name(&devfreq->dev))
     50	),
     51
     52	TP_fast_assign(
     53		__entry->freq = devfreq->previous_freq;
     54		__entry->busy_time = devfreq->last_status.busy_time;
     55		__entry->total_time = devfreq->last_status.total_time;
     56		__entry->polling_ms = devfreq->profile->polling_ms;
     57		__assign_str(dev_name, dev_name(&devfreq->dev));
     58	),
     59
     60	TP_printk("dev_name=%-30s freq=%-12lu polling_ms=%-3u load=%-2lu",
     61		__get_str(dev_name), __entry->freq, __entry->polling_ms,
     62		__entry->total_time == 0 ? 0 :
     63			(100 * __entry->busy_time) / __entry->total_time)
     64);
     65#endif /* _TRACE_DEVFREQ_H */
     66
     67/* This part must be outside protection */
     68#include <trace/define_trace.h>