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 11 struct perf_evsel_config_term; 12 13 enum { 14 PERF_PMU_FORMAT_VALUE_CONFIG, 15 PERF_PMU_FORMAT_VALUE_CONFIG1, 16 PERF_PMU_FORMAT_VALUE_CONFIG2, 17 }; 18 19 #define PERF_PMU_FORMAT_BITS 64 20 #define EVENT_SOURCE_DEVICE_PATH "/bus/event_source/devices/" 21 22 struct perf_event_attr; 23 24 struct perf_pmu { 25 char *name; 26 __u32 type; 27 bool selectable; 28 bool is_uncore; 29 bool auxtrace; 30 int max_precise; 31 struct perf_event_attr *default_config; 32 struct perf_cpu_map *cpus; 33 struct list_head format; /* HEAD struct perf_pmu_format -> list */ 34 struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */ 35 struct list_head list; /* ELEM */ 36 }; 37 38 struct perf_pmu_info { 39 const char *unit; 40 const char *metric_expr; 41 const char *metric_name; 42 double scale; 43 bool per_pkg; 44 bool snapshot; 45 }; 46 47 #define UNIT_MAX_LEN 31 /* max length for event unit name */ 48 49 struct perf_pmu_alias { 50 char *name; 51 char *desc; 52 char *long_desc; 53 char *topic; 54 char *str; 55 struct list_head terms; /* HEAD struct parse_events_term -> list */ 56 struct list_head list; /* ELEM */ 57 char unit[UNIT_MAX_LEN+1]; 58 double scale; 59 bool per_pkg; 60 bool snapshot; 61 bool deprecated; 62 char *metric_expr; 63 char *metric_name; 64 }; 65 66 struct perf_pmu *perf_pmu__find(const char *name); 67 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr, 68 struct list_head *head_terms, 69 struct parse_events_error *error); 70 int perf_pmu__config_terms(struct list_head *formats, 71 struct perf_event_attr *attr, 72 struct list_head *head_terms, 73 bool zero, struct parse_events_error *error); 74 __u64 perf_pmu__format_bits(struct list_head *formats, const char *name); 75 int perf_pmu__format_type(struct list_head *formats, const char *name); 76 int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, 77 struct perf_pmu_info *info); 78 struct list_head *perf_pmu__alias(struct perf_pmu *pmu, 79 struct list_head *head_terms); 80 int perf_pmu_wrap(void); 81 void perf_pmu_error(struct list_head *list, char *name, char const *msg); 82 83 int perf_pmu__new_format(struct list_head *list, char *name, 84 int config, unsigned long *bits); 85 void perf_pmu__set_format(unsigned long *bits, long from, long to); 86 int perf_pmu__format_parse(char *dir, struct list_head *head); 87 88 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu); 89 90 void print_pmu_events(const char *event_glob, bool name_only, bool quiet, 91 bool long_desc, bool details_flag, 92 bool deprecated); 93 bool pmu_have_event(const char *pname, const char *name); 94 95 int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...) __scanf(3, 4); 96 97 int perf_pmu__test(void); 98 99 struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu); 100 101 struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu); 102 103 int perf_pmu__convert_scale(const char *scale, char **end, double *sval); 104 105 #endif /* __PMU_H */ 106