1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright 2013, Michael Ellerman, IBM Corp.
4 */
5
6 #ifndef _SELFTESTS_POWERPC_PMU_EVENT_H
7 #define _SELFTESTS_POWERPC_PMU_EVENT_H
8
9 #include <unistd.h>
10 #include <linux/perf_event.h>
11
12 #include "utils.h"
13
14
15 struct event {
16 struct perf_event_attr attr;
17 char *name;
18 int fd;
19 /* This must match the read_format we use */
20 struct {
21 u64 value;
22 u64 running;
23 u64 enabled;
24 } result;
25 /*
26 * mmap buffer used while recording sample.
27 * Accessed as "struct perf_event_mmap_page"
28 */
29 void *mmap_buffer;
30 };
31
32 void event_init(struct event *e, u64 config);
33 void event_init_named(struct event *e, u64 config, char *name);
34 void event_init_opts(struct event *e, u64 config, int type, char *name);
35 void event_init_sampling(struct event *e, u64 config);
36 int event_open_with_options(struct event *e, pid_t pid, int cpu, int group_fd);
37 int event_open_with_group(struct event *e, int group_fd);
38 int event_open_with_pid(struct event *e, pid_t pid);
39 int event_open_with_cpu(struct event *e, int cpu);
40 int event_open(struct event *e);
41 void event_close(struct event *e);
42 int event_enable(struct event *e);
43 int event_disable(struct event *e);
44 int event_reset(struct event *e);
45 int event_read(struct event *e);
46 void event_report_justified(struct event *e, int name_width, int result_width);
47 void event_report(struct event *e);
48
49 #endif /* _SELFTESTS_POWERPC_PMU_EVENT_H */
50
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