13 static void panfrost_devfreq_update_utilization(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_update_utilization()  argument
18 	last = pfdevfreq->time_last_update;  in panfrost_devfreq_update_utilization()
20 	if (pfdevfreq->busy_count > 0)  in panfrost_devfreq_update_utilization()
21 		pfdevfreq->busy_time += ktime_sub(now, last);  in panfrost_devfreq_update_utilization()
23 		pfdevfreq->idle_time += ktime_sub(now, last);  in panfrost_devfreq_update_utilization()
25 	pfdevfreq->time_last_update = now;  in panfrost_devfreq_update_utilization()
41 static void panfrost_devfreq_reset(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_reset()  argument
43 	pfdevfreq->busy_time = 0;  in panfrost_devfreq_reset()
44 	pfdevfreq->idle_time = 0;  in panfrost_devfreq_reset()
45 	pfdevfreq->time_last_update = ktime_get();  in panfrost_devfreq_reset()
52 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_get_dev_status()  local
57 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
59 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_get_dev_status()
61 	status->total_time = ktime_to_ns(ktime_add(pfdevfreq->busy_time,  in panfrost_devfreq_get_dev_status()
62 						   pfdevfreq->idle_time));  in panfrost_devfreq_get_dev_status()
64 	status->busy_time = ktime_to_ns(pfdevfreq->busy_time);  in panfrost_devfreq_get_dev_status()
66 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_get_dev_status()
68 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
93 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_init()  local
122 	pfdevfreq->opp_of_table_added = true;  in panfrost_devfreq_init()
124 	spin_lock_init(&pfdevfreq->lock);  in panfrost_devfreq_init()
126 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_init()
141 	pfdevfreq->gov_data.upthreshold = 45;  in panfrost_devfreq_init()
142 	pfdevfreq->gov_data.downdifferential = 5;  in panfrost_devfreq_init()
146 					  &pfdevfreq->gov_data);  in panfrost_devfreq_init()
151 	pfdevfreq->devfreq = devfreq;  in panfrost_devfreq_init()
157 		pfdevfreq->cooling = cooling;  in panfrost_devfreq_init()
164 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_fini()  local
166 	if (pfdevfreq->cooling) {  in panfrost_devfreq_fini()
167 		devfreq_cooling_unregister(pfdevfreq->cooling);  in panfrost_devfreq_fini()
168 		pfdevfreq->cooling = NULL;  in panfrost_devfreq_fini()
174 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_resume()  local
176 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_resume()
179 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_resume()
181 	devfreq_resume_device(pfdevfreq->devfreq);  in panfrost_devfreq_resume()
186 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_suspend()  local
188 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_suspend()
191 	devfreq_suspend_device(pfdevfreq->devfreq);  in panfrost_devfreq_suspend()
194 void panfrost_devfreq_record_busy(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_busy()  argument
198 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_busy()
201 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
203 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_busy()
205 	pfdevfreq->busy_count++;  in panfrost_devfreq_record_busy()
207 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
210 void panfrost_devfreq_record_idle(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_idle()  argument
214 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_idle()
217 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()
219 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_idle()
221 	WARN_ON(--pfdevfreq->busy_count < 0);  in panfrost_devfreq_record_idle()
223 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()