lima_devfreq.h (1075B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* Copyright 2020 Martin Blumenstingl <martin.blumenstingl@googlemail.com> */ 3 4#ifndef __LIMA_DEVFREQ_H__ 5#define __LIMA_DEVFREQ_H__ 6 7#include <linux/devfreq.h> 8#include <linux/spinlock.h> 9#include <linux/ktime.h> 10 11struct devfreq; 12struct thermal_cooling_device; 13 14struct lima_device; 15 16struct lima_devfreq { 17 struct devfreq *devfreq; 18 struct thermal_cooling_device *cooling; 19 struct devfreq_simple_ondemand_data gov_data; 20 21 ktime_t busy_time; 22 ktime_t idle_time; 23 ktime_t time_last_update; 24 int busy_count; 25 /* 26 * Protect busy_time, idle_time, time_last_update and busy_count 27 * because these can be updated concurrently, for example by the GP 28 * and PP interrupts. 29 */ 30 spinlock_t lock; 31}; 32 33int lima_devfreq_init(struct lima_device *ldev); 34void lima_devfreq_fini(struct lima_device *ldev); 35 36void lima_devfreq_record_busy(struct lima_devfreq *devfreq); 37void lima_devfreq_record_idle(struct lima_devfreq *devfreq); 38 39int lima_devfreq_resume(struct lima_devfreq *devfreq); 40int lima_devfreq_suspend(struct lima_devfreq *devfreq); 41 42#endif