tools/perf/util/pmu.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PMU_H
   3 #define __PMU_H
   4
   5 #include <linux/bitmap.h>
   6 #include <linux/compiler.h>
   7 #include <linux/perf_event.h>
   8 #include <stdbool.h>
   9 #include "parse-events.h"
  10 #include "pmu-events/pmu-events.h"
  11
  12 struct evsel_config_term;
  13
  14 enum {
  15         PERF_PMU_FORMAT_VALUE_CONFIG,
  16         PERF_PMU_FORMAT_VALUE_CONFIG1,
  17         PERF_PMU_FORMAT_VALUE_CONFIG2,
  18 };
  19
  20 #define PERF_PMU_FORMAT_BITS 64
  21 #define EVENT_SOURCE_DEVICE_PATH "/bus/event_source/devices/"
  22
  23 struct perf_event_attr;
  24
  25 struct perf_pmu_caps {
  26         char *name;
  27         char *value;
  28         struct list_head list;
  29 };
  30
  31 struct perf_pmu {
  32         char *name;
  33         char *id;
  34         __u32 type;
  35         bool selectable;
  36         bool is_uncore;
  37         bool auxtrace;
  38         int max_precise;
  39         struct perf_event_attr *default_config;
  40         struct perf_cpu_map *cpus;
  41         struct list_head format;  /* HEAD struct perf_pmu_format -> list */
  42         struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */
  43         struct list_head caps;    /* HEAD struct perf_pmu_caps -> list */
  44         struct list_head list;    /* ELEM */
  45 };
  46
  47 extern struct perf_pmu perf_pmu__fake;
  48
  49 struct perf_pmu_info {
  50         const char *unit;
  51         const char *metric_expr;
  52         const char *metric_name;
  53         double scale;
  54         bool per_pkg;
  55         bool snapshot;
  56 };
  57
  58 #define UNIT_MAX_LEN    31 /* max length for event unit name */
  59
  60 struct perf_pmu_alias {
  61         char *name;
  62         char *desc;
  63         char *long_desc;
  64         char *topic;
  65         char *str;
  66         struct list_head terms; /* HEAD struct parse_events_term -> list */
  67         struct list_head list;  /* ELEM */
  68         char unit[UNIT_MAX_LEN+1];
  69         double scale;
  70         bool per_pkg;
  71         bool snapshot;
  72         bool deprecated;
  73         char *metric_expr;
  74         char *metric_name;
  75 };
  76
  77 struct perf_pmu *perf_pmu__find(const char *name);
  78 struct perf_pmu *perf_pmu__find_by_type(unsigned int type);
  79 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
  80                      struct list_head *head_terms,
  81                      struct parse_events_error *error);
  82 int perf_pmu__config_terms(const char *pmu_name, struct list_head *formats,
  83                            struct perf_event_attr *attr,
  84                            struct list_head *head_terms,
  85                            bool zero, struct parse_events_error *error);
  86 __u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
  87 int perf_pmu__format_type(struct list_head *formats, const char *name);
  88 int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
  89                           struct perf_pmu_info *info);
  90 struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
  91                                   struct list_head *head_terms);
  92 void perf_pmu_error(struct list_head *list, char *name, char const *msg);
  93
  94 int perf_pmu__new_format(struct list_head *list, char *name,
  95                          int config, unsigned long *bits);
  96 void perf_pmu__set_format(unsigned long *bits, long from, long to);
  97 int perf_pmu__format_parse(char *dir, struct list_head *head);
  98 void perf_pmu__del_formats(struct list_head *formats);
  99
 100 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
 101
 102 bool is_pmu_core(const char *name);
 103 void print_pmu_events(const char *event_glob, bool name_only, bool quiet,
 104                       bool long_desc, bool details_flag,
 105                       bool deprecated);
 106 bool pmu_have_event(const char *pname, const char *name);
 107
 108 int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...) __scanf(3, 4);
 109
 110 int perf_pmu__test(void);
 111
 112 struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
 113 void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu,
 114                              struct pmu_events_map *map);
 115
 116 struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu);
 117 bool pmu_uncore_alias_match(const char *pmu_name, const char *name);
 118 void perf_pmu_free_alias(struct perf_pmu_alias *alias);
 119
 120 typedef int (*pmu_sys_event_iter_fn)(struct pmu_event *pe, void *data);
 121 void pmu_for_each_sys_event(pmu_sys_event_iter_fn fn, void *data);
 122 int perf_pmu__convert_scale(const char *scale, char **end, double *sval);
 123
 124 int perf_pmu__caps_parse(struct perf_pmu *pmu);
 125
 126 #endif /* __PMU_H */