amd-pstate-trace.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2/*
  3 * amd-pstate-trace.h - AMD Processor P-state Frequency Driver Tracer
  4 *
  5 * Copyright (C) 2021 Advanced Micro Devices, Inc. All Rights Reserved.
  6 *
  7 * Author: Huang Rui <ray.huang@amd.com>
  8 */
  9
 10#if !defined(_AMD_PSTATE_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
 11#define _AMD_PSTATE_TRACE_H
 12
 13#include <linux/cpufreq.h>
 14#include <linux/tracepoint.h>
 15#include <linux/trace_events.h>
 16
 17#undef TRACE_SYSTEM
 18#define TRACE_SYSTEM amd_cpu
 19
 20#undef TRACE_INCLUDE_FILE
 21#define TRACE_INCLUDE_FILE amd-pstate-trace
 22
 23#define TPS(x)  tracepoint_string(x)
 24
 25TRACE_EVENT(amd_pstate_perf,
 26
 27	TP_PROTO(u8 min_perf,
 28		 u8 target_perf,
 29		 u8 capacity,
 30		 u64 freq,
 31		 u64 mperf,
 32		 u64 aperf,
 33		 u64 tsc,
 34		 unsigned int cpu_id,
 35		 bool fast_switch
 36		 ),
 37
 38	TP_ARGS(min_perf,
 39		target_perf,
 40		capacity,
 41		freq,
 42		mperf,
 43		aperf,
 44		tsc,
 45		cpu_id,
 46		fast_switch
 47		),
 48
 49	TP_STRUCT__entry(
 50		__field(u8, min_perf)
 51		__field(u8, target_perf)
 52		__field(u8, capacity)
 53		__field(unsigned long long, freq)
 54		__field(unsigned long long, mperf)
 55		__field(unsigned long long, aperf)
 56		__field(unsigned long long, tsc)
 57		__field(unsigned int, cpu_id)
 58		__field(bool, fast_switch)
 59		),
 60
 61	TP_fast_assign(
 62		__entry->min_perf = min_perf;
 63		__entry->target_perf = target_perf;
 64		__entry->capacity = capacity;
 65		__entry->freq = freq;
 66		__entry->mperf = mperf;
 67		__entry->aperf = aperf;
 68		__entry->tsc = tsc;
 69		__entry->cpu_id = cpu_id;
 70		__entry->fast_switch = fast_switch;
 71		),
 72
 73	TP_printk("amd_min_perf=%hhu amd_des_perf=%hhu amd_max_perf=%hhu freq=%llu mperf=%llu aperf=%llu tsc=%llu cpu_id=%u fast_switch=%s",
 74		  (u8)__entry->min_perf,
 75		  (u8)__entry->target_perf,
 76		  (u8)__entry->capacity,
 77		  (unsigned long long)__entry->freq,
 78		  (unsigned long long)__entry->mperf,
 79		  (unsigned long long)__entry->aperf,
 80		  (unsigned long long)__entry->tsc,
 81		  (unsigned int)__entry->cpu_id,
 82		  (__entry->fast_switch) ? "true" : "false"
 83		 )
 84);
 85
 86TRACE_EVENT(amd_pstate_epp_perf,
 87
 88	TP_PROTO(unsigned int cpu_id,
 89		 u8 highest_perf,
 90		 u8 epp,
 91		 u8 min_perf,
 92		 u8 max_perf,
 93		 bool boost,
 94		 bool changed
 95		 ),
 96
 97	TP_ARGS(cpu_id,
 98		highest_perf,
 99		epp,
100		min_perf,
101		max_perf,
102		boost,
103		changed),
104
105	TP_STRUCT__entry(
106		__field(unsigned int, cpu_id)
107		__field(u8, highest_perf)
108		__field(u8, epp)
109		__field(u8, min_perf)
110		__field(u8, max_perf)
111		__field(bool, boost)
112		__field(bool, changed)
113		),
114
115	TP_fast_assign(
116		__entry->cpu_id = cpu_id;
117		__entry->highest_perf = highest_perf;
118		__entry->epp = epp;
119		__entry->min_perf = min_perf;
120		__entry->max_perf = max_perf;
121		__entry->boost = boost;
122		__entry->changed = changed;
123		),
124
125	TP_printk("cpu%u: [%hhu<->%hhu]/%hhu, epp=%hhu, boost=%u, changed=%u",
126		  (unsigned int)__entry->cpu_id,
127		  (u8)__entry->min_perf,
128		  (u8)__entry->max_perf,
129		  (u8)__entry->highest_perf,
130		  (u8)__entry->epp,
131		  (bool)__entry->boost,
132		  (bool)__entry->changed
133		 )
134);
135
136#endif /* _AMD_PSTATE_TRACE_H */
137
138/* This part must be outside protection */
139#undef TRACE_INCLUDE_PATH
140#define TRACE_INCLUDE_PATH .
141
142#include <trace/define_trace.h>