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