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 int max_precise; 30 struct perf_event_attr *default_config; 31 struct cpu_map *cpus; 32 struct list_head format; /* HEAD struct perf_pmu_format -> list */ 33 struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */ 34 struct list_head list; /* ELEM */ 35 }; 36 37 struct perf_pmu_info { 38 const char *unit; 39 const char *metric_expr; 40 const char *metric_name; 41 double scale; 42 bool per_pkg; 43 bool snapshot; 44 }; 45 46 #define UNIT_MAX_LEN 31 /* max length for event unit name */ 47 48 struct perf_pmu_alias { 49 char *name; 50 char *desc; 51 char *long_desc; 52 char *topic; 53 char *str; 54 struct list_head terms; /* HEAD struct parse_events_term -> list */ 55 struct list_head list; /* ELEM */ 56 char unit[UNIT_MAX_LEN+1]; 57 double scale; 58 bool per_pkg; 59 bool snapshot; 60 char *metric_expr; 61 char *metric_name; 62 }; 63 64 struct perf_pmu *perf_pmu__find(const char *name); 65 int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr, 66 struct list_head *head_terms, 67 struct parse_events_error *error); 68 int perf_pmu__config_terms(struct list_head *formats, 69 struct perf_event_attr *attr, 70 struct list_head *head_terms, 71 bool zero, struct parse_events_error *error); 72 __u64 perf_pmu__format_bits(struct list_head *formats, const char *name); 73 int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms, 74 struct perf_pmu_info *info); 75 struct list_head *perf_pmu__alias(struct perf_pmu *pmu, 76 struct list_head *head_terms); 77 int perf_pmu_wrap(void); 78 void perf_pmu_error(struct list_head *list, char *name, char const *msg); 79 80 int perf_pmu__new_format(struct list_head *list, char *name, 81 int config, unsigned long *bits); 82 void perf_pmu__set_format(unsigned long *bits, long from, long to); 83 int perf_pmu__format_parse(char *dir, struct list_head *head); 84 85 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu); 86 87 void print_pmu_events(const char *event_glob, bool name_only, bool quiet, 88 bool long_desc, bool details_flag); 89 bool pmu_have_event(const char *pname, const char *name); 90 91 int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...) __scanf(3, 4); 92 93 int perf_pmu__test(void); 94 95 struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu); 96 97 struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu); 98 99 #endif /* __PMU_H */ 100