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 "evsel.h"
   8 #include "parse-events.h"
   9
  10 enum {
  11         PERF_PMU_FORMAT_VALUE_CONFIG,
  12         PERF_PMU_FORMAT_VALUE_CONFIG1,
  13         PERF_PMU_FORMAT_VALUE_CONFIG2,
  14 };
  15
  16 #define PERF_PMU_FORMAT_BITS 64
  17
  18 struct perf_event_attr;
  19
  20 struct perf_pmu {
  21         char *name;
  22         __u32 type;
  23         bool selectable;
  24         struct perf_event_attr *default_config;
  25         struct cpu_map *cpus;
  26         struct list_head format;  /* HEAD struct perf_pmu_format -> list */
  27         struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */
  28         struct list_head list;    /* ELEM */
  29         int (*set_drv_config)   (struct perf_evsel_config_term *term);
  30 };
  31
  32 struct perf_pmu_info {
  33         const char *unit;
  34         const char *metric_expr;
  35         const char *metric_name;
  36         double scale;
  37         bool per_pkg;
  38         bool snapshot;
  39 };
  40
  41 #define UNIT_MAX_LEN    31 /* max length for event unit name */
  42
  43 struct perf_pmu_alias {
  44         char *name;
  45         char *desc;
  46         char *long_desc;
  47         char *topic;
  48         char *str;
  49         struct list_head terms; /* HEAD struct parse_events_term -> list */
  50         struct list_head list;  /* ELEM */
  51         char unit[UNIT_MAX_LEN+1];
  52         double scale;
  53         bool per_pkg;
  54         bool snapshot;
  55         char *metric_expr;
  56         char *metric_name;
  57 };
  58
  59 struct perf_pmu *perf_pmu__find(const char *name);
  60 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
  61                      struct list_head *head_terms,
  62                      struct parse_events_error *error);
  63 int perf_pmu__config_terms(struct list_head *formats,
  64                            struct perf_event_attr *attr,
  65                            struct list_head *head_terms,
  66                            bool zero, struct parse_events_error *error);
  67 __u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
  68 int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
  69                           struct perf_pmu_info *info);
  70 struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
  71                                   struct list_head *head_terms);
  72 int perf_pmu_wrap(void);
  73 void perf_pmu_error(struct list_head *list, char *name, char const *msg);
  74
  75 int perf_pmu__new_format(struct list_head *list, char *name,
  76                          int config, unsigned long *bits);
  77 void perf_pmu__set_format(unsigned long *bits, long from, long to);
  78 int perf_pmu__format_parse(char *dir, struct list_head *head);
  79
  80 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
  81
  82 void print_pmu_events(const char *event_glob, bool name_only, bool quiet,
  83                       bool long_desc);
  84 bool pmu_have_event(const char *pname, const char *name);
  85
  86 int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt,
  87                         ...) __attribute__((format(scanf, 3, 4)));
  88
  89 int perf_pmu__test(void);
  90
  91 struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
  92
  93 #endif /* __PMU_H */