1 // SPDX-License-Identifier: GPL-2.0-only
18 void perf_cpu_map__set_nr(struct perf_cpu_map *map, int nr_cpus)  in perf_cpu_map__set_nr()  argument
20 	RC_CHK_ACCESS(map)->nr = nr_cpus;  in perf_cpu_map__set_nr()
33 		cpus->nr = nr_cpus;  in perf_cpu_map__alloc()
34 		refcount_set(&cpus->refcnt, 1);  in perf_cpu_map__alloc()
44 		RC_CHK_ACCESS(cpus)->map[0].cpu = -1;  in perf_cpu_map__new_any_cpu()
49 static void cpu_map__delete(struct perf_cpu_map *map)  in cpu_map__delete()  argument
51 	if (map) {  in cpu_map__delete()
52 		WARN_ONCE(refcount_read(perf_cpu_map__refcnt(map)) != 0,  in cpu_map__delete()
54 		RC_CHK_FREE(map);  in cpu_map__delete()
58 struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map)  in perf_cpu_map__get()  argument
62 	if (RC_CHK_GET(result, map))  in perf_cpu_map__get()
63 		refcount_inc(perf_cpu_map__refcnt(map));  in perf_cpu_map__get()
68 void perf_cpu_map__put(struct perf_cpu_map *map)  in perf_cpu_map__put()  argument
70 	if (map) {  in perf_cpu_map__put()
71 		if (refcount_dec_and_test(perf_cpu_map__refcnt(map)))  in perf_cpu_map__put()
72 			cpu_map__delete(map);  in perf_cpu_map__put()
74 			RC_CHK_PUT(map);  in perf_cpu_map__put()
89 …pr_warning("Number of online CPUs (%d) differs from the number configured (%d) the CPU map will on…  in cpu_map__new_sysconf()
98 			RC_CHK_ACCESS(cpus)->map[i].cpu = i;  in cpu_map__new_sysconf()
110 	if (sysfs__read_str("devices/system/cpu/online", &buf, &buf_len) >= 0) {  in cpu_map__new_sysfs_online()
132 	return cpu_a->cpu - cpu_b->cpu;  in cmp_cpu()
137 	return RC_CHK_ACCESS(cpus)->map[idx];  in __perf_cpu_map__cpu()
147 		memcpy(RC_CHK_ACCESS(cpus)->map, tmp_cpus, payload_size);  in cpu_map__trim_new()
148 		qsort(RC_CHK_ACCESS(cpus)->map, nr_cpus, sizeof(struct perf_cpu), cmp_cpu);  in cpu_map__trim_new()
153 			    __perf_cpu_map__cpu(cpus, i).cpu !=  in cpu_map__trim_new()
154 			    __perf_cpu_map__cpu(cpus, i - 1).cpu) {  in cpu_map__trim_new()
155 				RC_CHK_ACCESS(cpus)->map[j++].cpu =  in cpu_map__trim_new()
156 					__perf_cpu_map__cpu(cpus, i).cpu;  in cpu_map__trim_new()
179 	 * TOPOLOGY header for NUMA nodes with no CPU  in perf_cpu_map__new()
180 	 * ( e.g., because of CPU hotplug)  in perf_cpu_map__new()
189 		    || (*p != '\0' && *p != ',' && *p != '-' && *p != '\n'))  in perf_cpu_map__new()
192 		if (*p == '-') {  in perf_cpu_map__new()
212 				if (tmp_cpus[i].cpu == (int)start_cpu)  in perf_cpu_map__new()
216 				max_entries += max(end_cpu - start_cpu + 1, 16UL);  in perf_cpu_map__new()
222 			tmp_cpus[nr_cpus++].cpu = (int)start_cpu;  in perf_cpu_map__new()
233 		pr_warning("Unexpected characters at end of cpu list ('%s'), using online CPUs.",  in perf_cpu_map__new()
247 	return RC_CHK_ACCESS(cpus)->nr;  in __perf_cpu_map__nr()
253 		.cpu = -1  in perf_cpu_map__cpu()
267 bool perf_cpu_map__has_any_cpu_or_is_empty(const struct perf_cpu_map *map)  in perf_cpu_map__has_any_cpu_or_is_empty()  argument
269 	return map ? __perf_cpu_map__cpu(map, 0).cpu == -1 : true;  in perf_cpu_map__has_any_cpu_or_is_empty()
272 bool perf_cpu_map__is_any_cpu_or_is_empty(const struct perf_cpu_map *map)  in perf_cpu_map__is_any_cpu_or_is_empty()  argument
274 	if (!map)  in perf_cpu_map__is_any_cpu_or_is_empty()
277 	return __perf_cpu_map__nr(map) == 1 && __perf_cpu_map__cpu(map, 0).cpu == -1;  in perf_cpu_map__is_any_cpu_or_is_empty()
280 bool perf_cpu_map__is_empty(const struct perf_cpu_map *map)  in perf_cpu_map__is_empty()  argument
282 	return map == NULL;  in perf_cpu_map__is_empty()
285 int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu)  in perf_cpu_map__idx()  argument
290 		return -1;  in perf_cpu_map__idx()
298 		if (cpu_at_idx.cpu == cpu.cpu)  in perf_cpu_map__idx()
301 		if (cpu_at_idx.cpu > cpu.cpu)  in perf_cpu_map__idx()
307 	return -1;  in perf_cpu_map__idx()
310 bool perf_cpu_map__has(const struct perf_cpu_map *cpus, struct perf_cpu cpu)  in perf_cpu_map__has()  argument
312 	return perf_cpu_map__idx(cpus, cpu) != -1;  in perf_cpu_map__has()
330 		if (__perf_cpu_map__cpu(lhs, idx).cpu != __perf_cpu_map__cpu(rhs, idx).cpu)  in perf_cpu_map__equal()
336 bool perf_cpu_map__has_any_cpu(const struct perf_cpu_map *map)  in perf_cpu_map__has_any_cpu()  argument
338 	return map && __perf_cpu_map__cpu(map, 0).cpu == -1;  in perf_cpu_map__has_any_cpu()
341 struct perf_cpu perf_cpu_map__min(const struct perf_cpu_map *map)  in perf_cpu_map__min()  argument
343 	struct perf_cpu cpu, result = {  in perf_cpu_map__min()  local
344 		.cpu = -1  in perf_cpu_map__min()
348 	perf_cpu_map__for_each_cpu_skip_any(cpu, idx, map) {  in perf_cpu_map__min()
349 		result = cpu;  in perf_cpu_map__min()
355 struct perf_cpu perf_cpu_map__max(const struct perf_cpu_map *map)  in perf_cpu_map__max()  argument
358 		.cpu = -1  in perf_cpu_map__max()
362 	return __perf_cpu_map__nr(map) > 0  in perf_cpu_map__max()
363 		? __perf_cpu_map__cpu(map, __perf_cpu_map__nr(map) - 1)  in perf_cpu_map__max()
376 		if (__perf_cpu_map__cpu(a, i).cpu > __perf_cpu_map__cpu(b, j).cpu)  in perf_cpu_map__is_subset()
378 		if (__perf_cpu_map__cpu(a, i).cpu == __perf_cpu_map__cpu(b, j).cpu) {  in perf_cpu_map__is_subset()
396  * Otherwise, '*orig' gets freed and replaced with a new map.
416 		return -ENOMEM;  in perf_cpu_map__merge()
421 		if (__perf_cpu_map__cpu(*orig, i).cpu <= __perf_cpu_map__cpu(other, j).cpu) {  in perf_cpu_map__merge()
422 			if (__perf_cpu_map__cpu(*orig, i).cpu == __perf_cpu_map__cpu(other, j).cpu)  in perf_cpu_map__merge()
463 		if (__perf_cpu_map__cpu(orig, i).cpu < __perf_cpu_map__cpu(other, j).cpu)  in perf_cpu_map__intersect()
465 		else if (__perf_cpu_map__cpu(orig, i).cpu > __perf_cpu_map__cpu(other, j).cpu)  in perf_cpu_map__intersect()