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 
25 TRACE_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 
86 TRACE_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>
143