1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright 2019 Collabora ltd. */
3
4#ifndef __PANFROST_DEVFREQ_H__
5#define __PANFROST_DEVFREQ_H__
6
7#include <linux/spinlock.h>
8#include <linux/ktime.h>
9
10struct devfreq;
11struct opp_table;
12struct thermal_cooling_device;
13
14struct panfrost_device;
15
16struct panfrost_devfreq {
17	struct devfreq *devfreq;
18	struct opp_table *regulators_opp_table;
19	struct thermal_cooling_device *cooling;
20	bool opp_of_table_added;
21
22	ktime_t busy_time;
23	ktime_t idle_time;
24	ktime_t time_last_update;
25	int busy_count;
26	/*
27	 * Protect busy_time, idle_time, time_last_update and busy_count
28	 * because these can be updated concurrently between multiple jobs.
29	 */
30	spinlock_t lock;
31};
32
33int panfrost_devfreq_init(struct panfrost_device *pfdev);
34void panfrost_devfreq_fini(struct panfrost_device *pfdev);
35
36void panfrost_devfreq_resume(struct panfrost_device *pfdev);
37void panfrost_devfreq_suspend(struct panfrost_device *pfdev);
38
39void panfrost_devfreq_record_busy(struct panfrost_devfreq *devfreq);
40void panfrost_devfreq_record_idle(struct panfrost_devfreq *devfreq);
41
42#endif /* __PANFROST_DEVFREQ_H__ */
43