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Linux kernel mirror (for testing)
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linux
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
11struct perf_evsel_config_term;
12
13enum {
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
22struct perf_event_attr;
23
24struct 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
38struct 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
49struct 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
66struct perf_pmu *perf_pmu__find(const char *name);
67int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
68 struct list_head *head_terms,
69 struct parse_events_error *error);
70int 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);
75int perf_pmu__format_type(struct list_head *formats, const char *name);
76int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
77 struct perf_pmu_info *info);
78struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
79 struct list_head *head_terms);
80int perf_pmu_wrap(void);
81void perf_pmu_error(struct list_head *list, char *name, char const *msg);
82
83int perf_pmu__new_format(struct list_head *list, char *name,
84 int config, unsigned long *bits);
85void perf_pmu__set_format(unsigned long *bits, long from, long to);
86int perf_pmu__format_parse(char *dir, struct list_head *head);
87
88struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
89
90void print_pmu_events(const char *event_glob, bool name_only, bool quiet,
91 bool long_desc, bool details_flag,
92 bool deprecated);
93bool pmu_have_event(const char *pname, const char *name);
94
95int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...) __scanf(3, 4);
96
97int perf_pmu__test(void);
98
99struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
100
101struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu);
102
103int perf_pmu__convert_scale(const char *scale, char **end, double *sval);
104
105#endif /* __PMU_H */