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()
43 		ptdev->pfdevfreq.current_frequency = *freq;  in panfrost_devfreq_target()
48 static void panfrost_devfreq_reset(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_reset()  argument
50 	pfdevfreq->busy_time = 0;  in panfrost_devfreq_reset()
51 	pfdevfreq->idle_time = 0;  in panfrost_devfreq_reset()
52 	pfdevfreq->time_last_update = ktime_get();  in panfrost_devfreq_reset()
59 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_get_dev_status()  local
64 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
66 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_get_dev_status()
68 	status->total_time = ktime_to_ns(ktime_add(pfdevfreq->busy_time,  in panfrost_devfreq_get_dev_status()
69 						   pfdevfreq->idle_time));  in panfrost_devfreq_get_dev_status()
71 	status->busy_time = ktime_to_ns(pfdevfreq->busy_time);  in panfrost_devfreq_get_dev_status()
73 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_get_dev_status()
75 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_get_dev_status()
125 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_init()  local
158 	pfdevfreq->opp_of_table_added = true;  in panfrost_devfreq_init()
160 	spin_lock_init(&pfdevfreq->lock);  in panfrost_devfreq_init()
162 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_init()
178 	pfdevfreq->current_frequency = cur_freq;  in panfrost_devfreq_init()
194 	pfdevfreq->fast_rate = freq;  in panfrost_devfreq_init()
202 	pfdevfreq->gov_data.upthreshold = 45;  in panfrost_devfreq_init()
203 	pfdevfreq->gov_data.downdifferential = 5;  in panfrost_devfreq_init()
207 					  &pfdevfreq->gov_data);  in panfrost_devfreq_init()
212 	pfdevfreq->devfreq = devfreq;  in panfrost_devfreq_init()
218 		pfdevfreq->cooling = cooling;  in panfrost_devfreq_init()
225 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_fini()  local
227 	if (pfdevfreq->cooling) {  in panfrost_devfreq_fini()
228 		devfreq_cooling_unregister(pfdevfreq->cooling);  in panfrost_devfreq_fini()
229 		pfdevfreq->cooling = NULL;  in panfrost_devfreq_fini()
235 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_resume()  local
237 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_resume()
240 	panfrost_devfreq_reset(pfdevfreq);  in panfrost_devfreq_resume()
242 	devfreq_resume_device(pfdevfreq->devfreq);  in panfrost_devfreq_resume()
247 	struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;  in panfrost_devfreq_suspend()  local
249 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_suspend()
252 	devfreq_suspend_device(pfdevfreq->devfreq);  in panfrost_devfreq_suspend()
255 void panfrost_devfreq_record_busy(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_busy()  argument
259 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_busy()
262 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
264 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_busy()
266 	pfdevfreq->busy_count++;  in panfrost_devfreq_record_busy()
268 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_busy()
271 void panfrost_devfreq_record_idle(struct panfrost_devfreq *pfdevfreq)  in panfrost_devfreq_record_idle()  argument
275 	if (!pfdevfreq->devfreq)  in panfrost_devfreq_record_idle()
278 	spin_lock_irqsave(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()
280 	panfrost_devfreq_update_utilization(pfdevfreq);  in panfrost_devfreq_record_idle()
282 	WARN_ON(--pfdevfreq->busy_count < 0);  in panfrost_devfreq_record_idle()
284 	spin_unlock_irqrestore(&pfdevfreq->lock, irqflags);  in panfrost_devfreq_record_idle()