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