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/devfreq.h> |
8 | #include <linux/spinlock.h> |
9 | #include <linux/ktime.h> |
10 | |
11 | struct devfreq; |
12 | struct thermal_cooling_device; |
13 | |
14 | struct panfrost_device; |
15 | |
16 | struct panfrost_devfreq { |
17 | struct devfreq *devfreq; |
18 | struct thermal_cooling_device *cooling; |
19 | struct devfreq_simple_ondemand_data gov_data; |
20 | bool opp_of_table_added; |
21 | |
22 | unsigned long current_frequency; |
23 | unsigned long fast_rate; |
24 | |
25 | ktime_t busy_time; |
26 | ktime_t idle_time; |
27 | ktime_t time_last_update; |
28 | int busy_count; |
29 | /* |
30 | * Protect busy_time, idle_time, time_last_update and busy_count |
31 | * because these can be updated concurrently between multiple jobs. |
32 | */ |
33 | spinlock_t lock; |
34 | }; |
35 | |
36 | int panfrost_devfreq_init(struct panfrost_device *pfdev); |
37 | void panfrost_devfreq_fini(struct panfrost_device *pfdev); |
38 | |
39 | void panfrost_devfreq_resume(struct panfrost_device *pfdev); |
40 | void panfrost_devfreq_suspend(struct panfrost_device *pfdev); |
41 | |
42 | void panfrost_devfreq_record_busy(struct panfrost_devfreq *devfreq); |
43 | void panfrost_devfreq_record_idle(struct panfrost_devfreq *devfreq); |
44 | |
45 | #endif /* __PANFROST_DEVFREQ_H__ */ |
46 |