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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_BPF_COUNTER_H
#define __PERF_BPF_COUNTER_H 1
struct evsel;
struct target;
#ifdef HAVE_BPF_SKEL
typedef int (*bpf_counter_evsel_op)(struct evsel *evsel);
typedef int (*bpf_counter_evsel_target_op)(struct evsel *evsel,
struct target *target);
typedef int (*bpf_counter_evsel_install_pe_op)(struct evsel *evsel,
int cpu_map_idx,
int fd);
/* Shared ops between bpf_counter, bpf_counter_cgroup, etc. */
struct bpf_counter_ops {
bpf_counter_evsel_target_op load;
bpf_counter_evsel_op enable;
bpf_counter_evsel_op disable;
bpf_counter_evsel_op read;
bpf_counter_evsel_op destroy;
bpf_counter_evsel_install_pe_op install_pe;
};
int bpf_counter__load(struct evsel *evsel, struct target *target);
int bpf_counter__enable(struct evsel *evsel);
int bpf_counter__disable(struct evsel *evsel);
int bpf_counter__read(struct evsel *evsel);
void bpf_counter__destroy(struct evsel *evsel);
int bpf_counter__install_pe(struct evsel *evsel, int cpu_map_idx, int fd);
int bperf_trigger_reading(int prog_fd, int cpu);
void set_max_rlimit(void);
#else /* HAVE_BPF_SKEL */
#include <linux/err.h>
static inline int bpf_counter__load(struct evsel *evsel __maybe_unused,
struct target *target __maybe_unused)
{
return 0;
}
static inline int bpf_counter__enable(struct evsel *evsel __maybe_unused)
{
return 0;
}
static inline int bpf_counter__disable(struct evsel *evsel __maybe_unused)
{
return 0;
}
static inline int bpf_counter__read(struct evsel *evsel __maybe_unused)
{
return -EAGAIN;
}
static inline void bpf_counter__destroy(struct evsel *evsel __maybe_unused)
{
}
static inline int bpf_counter__install_pe(struct evsel *evsel __maybe_unused,
int cpu __maybe_unused,
int fd __maybe_unused)
{
return 0;
}
#endif /* HAVE_BPF_SKEL */
#endif /* __PERF_BPF_COUNTER_H */
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