1 // SPDX-License-Identifier: GPL-2.0-only
13 void perf_cpu_map__set_nr(struct perf_cpu_map *map, int nr_cpus)  in perf_cpu_map__set_nr()  argument
15 	RC_CHK_ACCESS(map)->nr = nr_cpus;  in perf_cpu_map__set_nr()
24 		cpus->nr = nr_cpus;  in perf_cpu_map__alloc()
25 		refcount_set(&cpus->refcnt, 1);  in perf_cpu_map__alloc()
35 		RC_CHK_ACCESS(cpus)->map[0].cpu = -1;  in perf_cpu_map__dummy_new()
40 static void cpu_map__delete(struct perf_cpu_map *map)  in cpu_map__delete()  argument
42 	if (map) {  in cpu_map__delete()
43 		WARN_ONCE(refcount_read(perf_cpu_map__refcnt(map)) != 0,  in cpu_map__delete()
45 		RC_CHK_FREE(map);  in cpu_map__delete()
49 struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map)  in perf_cpu_map__get()  argument
53 	if (RC_CHK_GET(result, map))  in perf_cpu_map__get()
54 		refcount_inc(perf_cpu_map__refcnt(map));  in perf_cpu_map__get()
59 void perf_cpu_map__put(struct perf_cpu_map *map)  in perf_cpu_map__put()  argument
61 	if (map) {  in perf_cpu_map__put()
62 		if (refcount_dec_and_test(perf_cpu_map__refcnt(map)))  in perf_cpu_map__put()
63 			cpu_map__delete(map);  in perf_cpu_map__put()
65 			RC_CHK_PUT(map);  in perf_cpu_map__put()
83 			RC_CHK_ACCESS(cpus)->map[i].cpu = i;  in cpu_map__default_new()
99 	return cpu_a->cpu - cpu_b->cpu;  in cmp_cpu()
104 	return RC_CHK_ACCESS(cpus)->map[idx];  in __perf_cpu_map__cpu()
114 		memcpy(RC_CHK_ACCESS(cpus)->map, tmp_cpus, payload_size);  in cpu_map__trim_new()
115 		qsort(RC_CHK_ACCESS(cpus)->map, nr_cpus, sizeof(struct perf_cpu), cmp_cpu);  in cpu_map__trim_new()
120 			    __perf_cpu_map__cpu(cpus, i).cpu !=  in cpu_map__trim_new()
121 			    __perf_cpu_map__cpu(cpus, i - 1).cpu) {  in cpu_map__trim_new()
122 				RC_CHK_ACCESS(cpus)->map[j++].cpu =  in cpu_map__trim_new()
123 					__perf_cpu_map__cpu(cpus, i).cpu;  in cpu_map__trim_new()
138 	int n, cpu, prev;  in perf_cpu_map__read()  local
142 	prev = -1;  in perf_cpu_map__read()
144 		n = fscanf(file, "%u%c", &cpu, &sep);  in perf_cpu_map__read()
148 			int new_max = nr_cpus + cpu - prev - 1;  in perf_cpu_map__read()
161 			while (++prev < cpu)  in perf_cpu_map__read()
162 				tmp_cpus[nr_cpus++].cpu = prev;  in perf_cpu_map__read()
172 		tmp_cpus[nr_cpus++].cpu = cpu;  in perf_cpu_map__read()
173 		if (n == 2 && sep == '-')  in perf_cpu_map__read()
174 			prev = cpu;  in perf_cpu_map__read()
176 			prev = -1;  in perf_cpu_map__read()
195 	onlnf = fopen("/sys/devices/system/cpu/online", "r");  in cpu_map__read_all_cpu_map()
218 	 * TOPOLOGY header for NUMA nodes with no CPU  in perf_cpu_map__new()
219 	 * ( e.g., because of CPU hotplug)  in perf_cpu_map__new()
228 		    || (*p != '\0' && *p != ',' && *p != '-'))  in perf_cpu_map__new()
231 		if (*p == '-') {  in perf_cpu_map__new()
251 				if (tmp_cpus[i].cpu == (int)start_cpu)  in perf_cpu_map__new()
261 			tmp_cpus[nr_cpus++].cpu = (int)start_cpu;  in perf_cpu_map__new()
283 	return RC_CHK_ACCESS(cpus)->nr;  in __perf_cpu_map__nr()
289 		.cpu = -1  in perf_cpu_map__cpu()
303 bool perf_cpu_map__empty(const struct perf_cpu_map *map)  in perf_cpu_map__empty()  argument
305 	return map ? __perf_cpu_map__cpu(map, 0).cpu == -1 : true;  in perf_cpu_map__empty()
308 int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu)  in perf_cpu_map__idx()  argument
313 		return -1;  in perf_cpu_map__idx()
321 		if (cpu_at_idx.cpu == cpu.cpu)  in perf_cpu_map__idx()
324 		if (cpu_at_idx.cpu > cpu.cpu)  in perf_cpu_map__idx()
330 	return -1;  in perf_cpu_map__idx()
333 bool perf_cpu_map__has(const struct perf_cpu_map *cpus, struct perf_cpu cpu)  in perf_cpu_map__has()  argument
335 	return perf_cpu_map__idx(cpus, cpu) != -1;  in perf_cpu_map__has()
353 		if (__perf_cpu_map__cpu(lhs, idx).cpu != __perf_cpu_map__cpu(rhs, idx).cpu)  in perf_cpu_map__equal()
359 bool perf_cpu_map__has_any_cpu(const struct perf_cpu_map *map)  in perf_cpu_map__has_any_cpu()  argument
361 	return map && __perf_cpu_map__cpu(map, 0).cpu == -1;  in perf_cpu_map__has_any_cpu()
364 struct perf_cpu perf_cpu_map__max(const struct perf_cpu_map *map)  in perf_cpu_map__max()  argument
367 		.cpu = -1  in perf_cpu_map__max()
371 	return __perf_cpu_map__nr(map) > 0  in perf_cpu_map__max()
372 		? __perf_cpu_map__cpu(map, __perf_cpu_map__nr(map) - 1)  in perf_cpu_map__max()
385 		if (__perf_cpu_map__cpu(a, i).cpu > __perf_cpu_map__cpu(b, j).cpu)  in perf_cpu_map__is_subset()
387 		if (__perf_cpu_map__cpu(a, i).cpu == __perf_cpu_map__cpu(b, j).cpu) {  in perf_cpu_map__is_subset()
399  * orig either gets freed and replaced with a new map, or reused
427 		if (__perf_cpu_map__cpu(orig, i).cpu <= __perf_cpu_map__cpu(other, j).cpu) {  in perf_cpu_map__merge()
428 			if (__perf_cpu_map__cpu(orig, i).cpu == __perf_cpu_map__cpu(other, j).cpu)  in perf_cpu_map__merge()
468 		if (__perf_cpu_map__cpu(orig, i).cpu < __perf_cpu_map__cpu(other, j).cpu)  in perf_cpu_map__intersect()
470 		else if (__perf_cpu_map__cpu(orig, i).cpu > __perf_cpu_map__cpu(other, j).cpu)  in perf_cpu_map__intersect()