drivers/cpufreq/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 <[email protected]>
   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(unsigned long min_perf,
  28                  unsigned long target_perf,
  29                  unsigned long capacity,
  30                  unsigned int cpu_id,
  31                  bool changed,
  32                  bool fast_switch
  33                  ),
  34
  35         TP_ARGS(min_perf,
  36                 target_perf,
  37                 capacity,
  38                 cpu_id,
  39                 changed,
  40                 fast_switch
  41                 ),
  42
  43         TP_STRUCT__entry(
  44                 __field(unsigned long, min_perf)
  45                 __field(unsigned long, target_perf)
  46                 __field(unsigned long, capacity)
  47                 __field(unsigned int, cpu_id)
  48                 __field(bool, changed)
  49                 __field(bool, fast_switch)
  50                 ),
  51
  52         TP_fast_assign(
  53                 __entry->min_perf = min_perf;
  54                 __entry->target_perf = target_perf;
  55                 __entry->capacity = capacity;
  56                 __entry->cpu_id = cpu_id;
  57                 __entry->changed = changed;
  58                 __entry->fast_switch = fast_switch;
  59                 ),
  60
  61         TP_printk("amd_min_perf=%lu amd_des_perf=%lu amd_max_perf=%lu cpu_id=%u changed=%s fast_switch=%s",
  62                   (unsigned long)__entry->min_perf,
  63                   (unsigned long)__entry->target_perf,
  64                   (unsigned long)__entry->capacity,
  65                   (unsigned int)__entry->cpu_id,
  66                   (__entry->changed) ? "true" : "false",
  67                   (__entry->fast_switch) ? "true" : "false"
  68                  )
  69 );
  70
  71 #endif /* _AMD_PSTATE_TRACE_H */
  72
  73 /* This part must be outside protection */
  74 #undef TRACE_INCLUDE_PATH
  75 #define TRACE_INCLUDE_PATH .
  76
  77 #include <trace/define_trace.h>