16 static void panfrost_devfreq_update_utilization(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_update_utilization()  argument
21 	last = pfdevfreq->time_last_update;  in panfrost_devfreq_update_utilization()
23 	if (pfdevfreq->busy_count > 0)  in panfrost_devfreq_update_utilization()
24 		pfdevfreq->busy_time += ktime_sub(now, last);  in panfrost_devfreq_update_utilization()
26 		pfdevfreq->idle_time += ktime_sub(now, last);  in panfrost_devfreq_update_utilization()
28 	pfdevfreq->time_last_update = now;  in panfrost_devfreq_update_utilization()
45 		pfdev->pfdevfreq.current_frequency = *freq;  in panfrost_devfreq_target()
50 static void panfrost_devfreq_reset(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_reset()  argument
52 	pfdevfreq->busy_time = 0;  in panfrost_devfreq_reset()
53 	pfdevfreq->idle_time = 0;  in panfrost_devfreq_reset()
54 	pfdevfreq->time_last_update = ktime_get();  in panfrost_devfreq_reset()
61 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_get_dev_status()  local
66 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
68 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_get_dev_status()
70 	status->total_time = ktime_to_ns(ktime_add(pfdevfreq->busy_time,  in panfrost_devfreq_get_dev_status()
71 						   pfdevfreq->idle_time));  in panfrost_devfreq_get_dev_status()
73 	status->busy_time = ktime_to_ns(pfdevfreq->busy_time);  in panfrost_devfreq_get_dev_status()
75 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_get_dev_status()
77 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
127 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_init()  local
160 	pfdevfreq->opp_of_table_added = true;  in panfrost_devfreq_init()
162 	spin_lock_init(&pfdevfreq->lock);  in panfrost_devfreq_init()
164 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_init()
180 	pfdevfreq->current_frequency = cur_freq;  in panfrost_devfreq_init()
197 	pfdevfreq->fast_rate = freq;  in panfrost_devfreq_init()
205 	pfdevfreq->gov_data.upthreshold = 45;  in panfrost_devfreq_init()
206 	pfdevfreq->gov_data.downdifferential = 5;  in panfrost_devfreq_init()
210 					  &pfdevfreq->gov_data);  in panfrost_devfreq_init()
215 	pfdevfreq->devfreq = devfreq;  in panfrost_devfreq_init()
221 		pfdevfreq->cooling = cooling;  in panfrost_devfreq_init()
228 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_fini()  local
230 	if (pfdevfreq->cooling) {  in panfrost_devfreq_fini()
231 		devfreq_cooling_unregister(pfdevfreq->cooling);  in panfrost_devfreq_fini()
232 		pfdevfreq->cooling = NULL;  in panfrost_devfreq_fini()
238 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_resume()  local
240 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_resume()
243 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_resume()
245 	devfreq_resume_device(pfdevfreq->devfreq);  in panfrost_devfreq_resume()
250 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_suspend()  local
252 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_suspend()
255 	devfreq_suspend_device(pfdevfreq->devfreq);  in panfrost_devfreq_suspend()
258 void panfrost_devfreq_record_busy(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_busy()  argument
262 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_busy()
265 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
267 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_busy()
269 	pfdevfreq->busy_count++;  in panfrost_devfreq_record_busy()
271 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
274 void panfrost_devfreq_record_idle(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_idle()  argument
278 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_idle()
281 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()
283 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_idle()
285 	WARN_ON(--pfdevfreq->busy_count < 0);  in panfrost_devfreq_record_idle()
287 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()