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
121 	pfdevfreq->opp_of_table_added = true;  in panfrost_devfreq_init()
123 	spin_lock_init(&pfdevfreq->lock);  in panfrost_devfreq_init()
125 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_init()
151 	pfdevfreq->gov_data.upthreshold = 45;  in panfrost_devfreq_init()
152 	pfdevfreq->gov_data.downdifferential = 5;  in panfrost_devfreq_init()
156 					  &pfdevfreq->gov_data);  in panfrost_devfreq_init()
161 	pfdevfreq->devfreq = devfreq;  in panfrost_devfreq_init()
167 		pfdevfreq->cooling = cooling;  in panfrost_devfreq_init()
174 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_fini()  local
176 	if (pfdevfreq->cooling) {  in panfrost_devfreq_fini()
177 		devfreq_cooling_unregister(pfdevfreq->cooling);  in panfrost_devfreq_fini()
178 		pfdevfreq->cooling = NULL;  in panfrost_devfreq_fini()
184 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_resume()  local
186 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_resume()
189 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_resume()
191 	devfreq_resume_device(pfdevfreq->devfreq);  in panfrost_devfreq_resume()
196 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_suspend()  local
198 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_suspend()
201 	devfreq_suspend_device(pfdevfreq->devfreq);  in panfrost_devfreq_suspend()
204 void panfrost_devfreq_record_busy(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_busy()  argument
208 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_busy()
211 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
213 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_busy()
215 	pfdevfreq->busy_count++;  in panfrost_devfreq_record_busy()
217 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
220 void panfrost_devfreq_record_idle(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_idle()  argument
224 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_idle()
227 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()
229 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_idle()
231 	WARN_ON(--pfdevfreq->busy_count < 0);  in panfrost_devfreq_record_idle()
233 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()