14 static void panfrost_devfreq_update_utilization(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_update_utilization()  argument
19 	last = pfdevfreq->time_last_update;  in panfrost_devfreq_update_utilization()
21 	if (pfdevfreq->busy_count > 0)  in panfrost_devfreq_update_utilization()
22 		pfdevfreq->busy_time += ktime_sub(now, last);  in panfrost_devfreq_update_utilization()
24 		pfdevfreq->idle_time += ktime_sub(now, last);  in panfrost_devfreq_update_utilization()
26 	pfdevfreq->time_last_update = now;  in panfrost_devfreq_update_utilization()
42 static void panfrost_devfreq_reset(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_reset()  argument
44 	pfdevfreq->busy_time = 0;  in panfrost_devfreq_reset()
45 	pfdevfreq->idle_time = 0;  in panfrost_devfreq_reset()
46 	pfdevfreq->time_last_update = ktime_get();  in panfrost_devfreq_reset()
53 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_get_dev_status()  local
58 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
60 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_get_dev_status()
62 	status->total_time = ktime_to_ns(ktime_add(pfdevfreq->busy_time,  in panfrost_devfreq_get_dev_status()
63 						   pfdevfreq->idle_time));  in panfrost_devfreq_get_dev_status()
65 	status->busy_time = ktime_to_ns(pfdevfreq->busy_time);  in panfrost_devfreq_get_dev_status()
67 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_get_dev_status()
69 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
119 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_init()  local
151 	pfdevfreq->opp_of_table_added = true;  in panfrost_devfreq_init()
153 	spin_lock_init(&pfdevfreq->lock);  in panfrost_devfreq_init()
155 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_init()
181 	pfdevfreq->gov_data.upthreshold = 45;  in panfrost_devfreq_init()
182 	pfdevfreq->gov_data.downdifferential = 5;  in panfrost_devfreq_init()
186 					  &pfdevfreq->gov_data);  in panfrost_devfreq_init()
191 	pfdevfreq->devfreq = devfreq;  in panfrost_devfreq_init()
197 		pfdevfreq->cooling = cooling;  in panfrost_devfreq_init()
204 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_fini()  local
206 	if (pfdevfreq->cooling) {  in panfrost_devfreq_fini()
207 		devfreq_cooling_unregister(pfdevfreq->cooling);  in panfrost_devfreq_fini()
208 		pfdevfreq->cooling = NULL;  in panfrost_devfreq_fini()
214 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_resume()  local
216 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_resume()
219 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_resume()
221 	devfreq_resume_device(pfdevfreq->devfreq);  in panfrost_devfreq_resume()
226 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_suspend()  local
228 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_suspend()
231 	devfreq_suspend_device(pfdevfreq->devfreq);  in panfrost_devfreq_suspend()
234 void panfrost_devfreq_record_busy(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_busy()  argument
238 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_busy()
241 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
243 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_busy()
245 	pfdevfreq->busy_count++;  in panfrost_devfreq_record_busy()
247 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
250 void panfrost_devfreq_record_idle(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_idle()  argument
254 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_idle()
257 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()
259 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_idle()
261 	WARN_ON(--pfdevfreq->busy_count < 0);  in panfrost_devfreq_record_idle()
263 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()