]> Git Repo - linux.git/blob - drivers/gpu/drm/lima/lima_devfreq.h
Merge tag 'devprop-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
[linux.git] / drivers / gpu / drm / lima / lima_devfreq.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright 2020 Martin Blumenstingl <[email protected]> */
3
4 #ifndef __LIMA_DEVFREQ_H__
5 #define __LIMA_DEVFREQ_H__
6
7 #include <linux/spinlock.h>
8 #include <linux/ktime.h>
9
10 struct devfreq;
11 struct thermal_cooling_device;
12
13 struct lima_device;
14
15 struct lima_devfreq {
16         struct devfreq *devfreq;
17         struct thermal_cooling_device *cooling;
18
19         ktime_t busy_time;
20         ktime_t idle_time;
21         ktime_t time_last_update;
22         int busy_count;
23         /*
24          * Protect busy_time, idle_time, time_last_update and busy_count
25          * because these can be updated concurrently, for example by the GP
26          * and PP interrupts.
27          */
28         spinlock_t lock;
29 };
30
31 int lima_devfreq_init(struct lima_device *ldev);
32 void lima_devfreq_fini(struct lima_device *ldev);
33
34 void lima_devfreq_record_busy(struct lima_devfreq *devfreq);
35 void lima_devfreq_record_idle(struct lima_devfreq *devfreq);
36
37 int lima_devfreq_resume(struct lima_devfreq *devfreq);
38 int lima_devfreq_suspend(struct lima_devfreq *devfreq);
39
40 #endif
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