tools/perf/util/pmu.h

   1 #ifndef __PMU_H
   2 #define __PMU_H
   3
   4 #include <linux/bitmap.h>
   5 #include <linux/perf_event.h>
   6 #include <stdbool.h>
   7 #include "parse-events.h"
   8
   9 enum {
  10         PERF_PMU_FORMAT_VALUE_CONFIG,
  11         PERF_PMU_FORMAT_VALUE_CONFIG1,
  12         PERF_PMU_FORMAT_VALUE_CONFIG2,
  13 };
  14
  15 #define PERF_PMU_FORMAT_BITS 64
  16
  17 struct perf_event_attr;
  18
  19 struct perf_pmu {
  20         char *name;
  21         __u32 type;
  22         bool selectable;
  23         struct perf_event_attr *default_config;
  24         struct cpu_map *cpus;
  25         struct list_head format;  /* HEAD struct perf_pmu_format -> list */
  26         struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */
  27         struct list_head list;    /* ELEM */
  28 };
  29
  30 struct perf_pmu_info {
  31         const char *unit;
  32         double scale;
  33         bool per_pkg;
  34         bool snapshot;
  35 };
  36
  37 #define UNIT_MAX_LEN    31 /* max length for event unit name */
  38
  39 struct perf_pmu_alias {
  40         char *name;
  41         struct list_head terms; /* HEAD struct parse_events_term -> list */
  42         struct list_head list;  /* ELEM */
  43         char unit[UNIT_MAX_LEN+1];
  44         double scale;
  45         bool per_pkg;
  46         bool snapshot;
  47 };
  48
  49 struct perf_pmu *perf_pmu__find(const char *name);
  50 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
  51                      struct list_head *head_terms,
  52                      struct parse_events_error *error);
  53 int perf_pmu__config_terms(struct list_head *formats,
  54                            struct perf_event_attr *attr,
  55                            struct list_head *head_terms,
  56                            bool zero, struct parse_events_error *error);
  57 __u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
  58 int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
  59                           struct perf_pmu_info *info);
  60 struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
  61                                   struct list_head *head_terms);
  62 int perf_pmu_wrap(void);
  63 void perf_pmu_error(struct list_head *list, char *name, char const *msg);
  64
  65 int perf_pmu__new_format(struct list_head *list, char *name,
  66                          int config, unsigned long *bits);
  67 void perf_pmu__set_format(unsigned long *bits, long from, long to);
  68 int perf_pmu__format_parse(char *dir, struct list_head *head);
  69
  70 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
  71
  72 void print_pmu_events(const char *event_glob, bool name_only);
  73 bool pmu_have_event(const char *pname, const char *name);
  74
  75 int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt,
  76                         ...) __attribute__((format(scanf, 3, 4)));
  77
  78 int perf_pmu__test(void);
  79
  80 struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
  81
  82 #endif /* __PMU_H */