1 // SPDX-License-Identifier: GPL-2.0
21 	INIT_LIST_HEAD(&evsel->node);  in perf_evsel__init()
22 	evsel->attr = *attr;  in perf_evsel__init()
40 #define FD(e, x, y) (*(int *) xyarray__entry(e->fd, x, y))
44 	evsel->fd = xyarray__new(ncpus, nthreads, sizeof(int));  in perf_evsel__alloc_fd()
46 	if (evsel->fd) {  in perf_evsel__alloc_fd()
47 		int cpu, thread;  in perf_evsel__alloc_fd()  local
48 		for (cpu = 0; cpu < ncpus; cpu++) {  in perf_evsel__alloc_fd()
50 				FD(evsel, cpu, thread) = -1;  in perf_evsel__alloc_fd()
55 	return evsel->fd != NULL ? 0 : -ENOMEM;  in perf_evsel__alloc_fd()
60 		    pid_t pid, int cpu, int group_fd,  in sys_perf_event_open()  argument
63 	return syscall(__NR_perf_event_open, attr, pid, cpu, group_fd, flags);  in sys_perf_event_open()
69 	int cpu, thread, err = 0;  in perf_evsel__open()  local
77 				return -ENOMEM;  in perf_evsel__open()
89 				return -ENOMEM;  in perf_evsel__open()
95 	if (evsel->fd == NULL &&  in perf_evsel__open()
96 	    perf_evsel__alloc_fd(evsel, cpus->nr, threads->nr) < 0)  in perf_evsel__open()
97 		return -ENOMEM;  in perf_evsel__open()
99 	for (cpu = 0; cpu < cpus->nr; cpu++) {  in perf_evsel__open()
100 		for (thread = 0; thread < threads->nr; thread++) {  in perf_evsel__open()
103 			fd = sys_perf_event_open(&evsel->attr,  in perf_evsel__open()
104 						 threads->map[thread].pid,  in perf_evsel__open()
105 						 cpus->map[cpu], -1, 0);  in perf_evsel__open()
108 				return -errno;  in perf_evsel__open()
110 			FD(evsel, cpu, thread) = fd;  in perf_evsel__open()
117 static void perf_evsel__close_fd_cpu(struct perf_evsel *evsel, int cpu)  in perf_evsel__close_fd_cpu()  argument
121 	for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {  in perf_evsel__close_fd_cpu()
122 		if (FD(evsel, cpu, thread) >= 0)  in perf_evsel__close_fd_cpu()
123 			close(FD(evsel, cpu, thread));  in perf_evsel__close_fd_cpu()
124 		FD(evsel, cpu, thread) = -1;  in perf_evsel__close_fd_cpu()
130 	int cpu;  in perf_evsel__close_fd()  local
132 	for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++)  in perf_evsel__close_fd()
133 		perf_evsel__close_fd_cpu(evsel, cpu);  in perf_evsel__close_fd()
138 	xyarray__delete(evsel->fd);  in perf_evsel__free_fd()
139 	evsel->fd = NULL;  in perf_evsel__free_fd()
144 	if (evsel->fd == NULL)  in perf_evsel__close()
151 void perf_evsel__close_cpu(struct perf_evsel *evsel, int cpu)  in perf_evsel__close_cpu()  argument
153 	if (evsel->fd == NULL)  in perf_evsel__close_cpu()
156 	perf_evsel__close_fd_cpu(evsel, cpu);  in perf_evsel__close_cpu()
161 	u64 read_format = evsel->attr.read_format;  in perf_evsel__read_size()
164 	int nr = 1;  in perf_evsel__read_size()  local
176 		nr = evsel->nr_members;  in perf_evsel__read_size()
180 	size += entry * nr;  in perf_evsel__read_size()
184 int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,  in perf_evsel__read()  argument
191 	if (FD(evsel, cpu, thread) < 0)  in perf_evsel__read()
192 		return -EINVAL;  in perf_evsel__read()
194 	if (readn(FD(evsel, cpu, thread), count->values, size) <= 0)  in perf_evsel__read()
195 		return -errno;  in perf_evsel__read()
202 				 int cpu)  in perf_evsel__run_ioctl()  argument
206 	for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {  in perf_evsel__run_ioctl()
207 		int fd = FD(evsel, cpu, thread),  in perf_evsel__run_ioctl()
217 int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu)  in perf_evsel__enable_cpu()  argument
219 	return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu);  in perf_evsel__enable_cpu()
227 	for (i = 0; i < xyarray__max_x(evsel->fd) && !err; i++)  in perf_evsel__enable()
232 int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu)  in perf_evsel__disable_cpu()  argument
234 	return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_DISABLE, NULL, cpu);  in perf_evsel__disable_cpu()
242 	for (i = 0; i < xyarray__max_x(evsel->fd) && !err; i++)  in perf_evsel__disable()
251 	for (i = 0; i < evsel->cpus->nr && !err; i++)  in perf_evsel__apply_filter()
260 	return evsel->cpus;  in perf_evsel__cpus()
265 	return evsel->threads;  in perf_evsel__threads()
270 	return &evsel->attr;  in perf_evsel__attr()
278 	if (evsel->system_wide)  in perf_evsel__alloc_id()
281 	evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));  in perf_evsel__alloc_id()
282 	if (evsel->sample_id == NULL)  in perf_evsel__alloc_id()
283 		return -ENOMEM;  in perf_evsel__alloc_id()
285 	evsel->id = zalloc(ncpus * nthreads * sizeof(u64));  in perf_evsel__alloc_id()
286 	if (evsel->id == NULL) {  in perf_evsel__alloc_id()
287 		xyarray__delete(evsel->sample_id);  in perf_evsel__alloc_id()
288 		evsel->sample_id = NULL;  in perf_evsel__alloc_id()
289 		return -ENOMEM;  in perf_evsel__alloc_id()
297 	xyarray__delete(evsel->sample_id);  in perf_evsel__free_id()
298 	evsel->sample_id = NULL;  in perf_evsel__free_id()
299 	zfree(&evsel->id);  in perf_evsel__free_id()
300 	evsel->ids = 0;  in perf_evsel__free_id()