26 static bool _is_cpu_device(struct device *dev)  in _is_cpu_device()  argument
28 	return (dev->bus == &cpu_subsys);  in _is_cpu_device()
67 static void em_debug_create_pd(struct device *dev)  in em_debug_create_pd()  argument
73 	d = debugfs_create_dir(dev_name(dev), rootdir);  in em_debug_create_pd()
75 	if (_is_cpu_device(dev))  in em_debug_create_pd()
76 		debugfs_create_file("cpus", 0444, d, dev->em_pd->cpus,  in em_debug_create_pd()
79 	debugfs_create_file("units", 0444, d, dev->em_pd, &em_debug_units_fops);  in em_debug_create_pd()
82 	for (i = 0; i < dev->em_pd->nr_perf_states; i++)  in em_debug_create_pd()
83 		em_debug_create_ps(&dev->em_pd->table[i], d);  in em_debug_create_pd()
87 static void em_debug_remove_pd(struct device *dev)  in em_debug_remove_pd()  argument
89 	debugfs_lookup_and_remove(dev_name(dev), rootdir);  in em_debug_remove_pd()
101 static void em_debug_create_pd(struct device *dev) {}  in em_debug_create_pd()  argument
102 static void em_debug_remove_pd(struct device *dev) {}  in em_debug_remove_pd()  argument
105 static int em_create_perf_table(struct device *dev, struct em_perf_domain *pd,  in em_create_perf_table()  argument
124 		ret = cb->active_power(&power, &freq, dev);  in em_create_perf_table()
126 			dev_err(dev, "EM: invalid perf. state: %d\n",  in em_create_perf_table()
136 			dev_err(dev, "EM: non-increasing freq: %lu\n",  in em_create_perf_table()
146 			dev_err(dev, "EM: invalid power: %lu\n",  in em_create_perf_table()
163 			dev_dbg(dev, "EM: OPP:%lu is inefficient\n",  in em_create_perf_table()
180 static int em_create_pd(struct device *dev, int nr_states,  in em_create_pd()  argument
187 	if (_is_cpu_device(dev)) {  in em_create_pd()
199 	ret = em_create_perf_table(dev, pd, nr_states, cb);  in em_create_pd()
205 	if (_is_cpu_device(dev))  in em_create_pd()
211 	dev->em_pd = pd;  in em_create_pd()
223 struct em_perf_domain *em_pd_get(struct device *dev)  in em_pd_get()  argument
225 	if (IS_ERR_OR_NULL(dev))  in em_pd_get()
228 	return dev->em_pd;  in em_pd_get()
274 int em_dev_register_perf_domain(struct device *dev, unsigned int nr_states,  in em_dev_register_perf_domain()  argument
282 	if (!dev || !nr_states || !cb)  in em_dev_register_perf_domain()
291 	if (dev->em_pd) {  in em_dev_register_perf_domain()
296 	if (_is_cpu_device(dev)) {  in em_dev_register_perf_domain()
298 			dev_err(dev, "EM: invalid CPU mask\n");  in em_dev_register_perf_domain()
305 				dev_err(dev, "EM: exists for CPU%d\n", cpu);  in em_dev_register_perf_domain()
320 				dev_err(dev, "EM: CPUs of %*pbl must have the same capacity\n",  in em_dev_register_perf_domain()
330 	ret = em_create_pd(dev, nr_states, cb, cpus);  in em_dev_register_perf_domain()
334 	dev->em_pd->milliwatts = milliwatts;  in em_dev_register_perf_domain()
336 	em_debug_create_pd(dev);  in em_dev_register_perf_domain()
337 	dev_info(dev, "EM: created perf domain\n");  in em_dev_register_perf_domain()
351 void em_dev_unregister_perf_domain(struct device *dev)  in em_dev_unregister_perf_domain()  argument
353 	if (IS_ERR_OR_NULL(dev) || !dev->em_pd)  in em_dev_unregister_perf_domain()
356 	if (_is_cpu_device(dev))  in em_dev_unregister_perf_domain()
365 	em_debug_remove_pd(dev);  in em_dev_unregister_perf_domain()
367 	kfree(dev->em_pd->table);  in em_dev_unregister_perf_domain()
368 	kfree(dev->em_pd);  in em_dev_unregister_perf_domain()
369 	dev->em_pd = NULL;  in em_dev_unregister_perf_domain()