event.h (1398B)
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 15struct 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 32void event_init(struct event *e, u64 config); 33void event_init_named(struct event *e, u64 config, char *name); 34void event_init_opts(struct event *e, u64 config, int type, char *name); 35void event_init_sampling(struct event *e, u64 config); 36int event_open_with_options(struct event *e, pid_t pid, int cpu, int group_fd); 37int event_open_with_group(struct event *e, int group_fd); 38int event_open_with_pid(struct event *e, pid_t pid); 39int event_open_with_cpu(struct event *e, int cpu); 40int event_open(struct event *e); 41void event_close(struct event *e); 42int event_enable(struct event *e); 43int event_disable(struct event *e); 44int event_reset(struct event *e); 45int event_read(struct event *e); 46void event_report_justified(struct event *e, int name_width, int result_width); 47void event_report(struct event *e); 48 49#endif /* _SELFTESTS_POWERPC_PMU_EVENT_H */