1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* Copyright 2019 Collabora ltd. */ 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #ifndef __PANFROST_DEVFREQ_H__ 5*4882a593Smuzhiyun #define __PANFROST_DEVFREQ_H__ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #include <linux/spinlock.h> 8*4882a593Smuzhiyun #include <linux/ktime.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun struct devfreq; 11*4882a593Smuzhiyun struct opp_table; 12*4882a593Smuzhiyun struct thermal_cooling_device; 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct panfrost_device; 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun struct panfrost_devfreq { 17*4882a593Smuzhiyun struct devfreq *devfreq; 18*4882a593Smuzhiyun struct opp_table *regulators_opp_table; 19*4882a593Smuzhiyun struct thermal_cooling_device *cooling; 20*4882a593Smuzhiyun bool opp_of_table_added; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun ktime_t busy_time; 23*4882a593Smuzhiyun ktime_t idle_time; 24*4882a593Smuzhiyun ktime_t time_last_update; 25*4882a593Smuzhiyun int busy_count; 26*4882a593Smuzhiyun /* 27*4882a593Smuzhiyun * Protect busy_time, idle_time, time_last_update and busy_count 28*4882a593Smuzhiyun * because these can be updated concurrently between multiple jobs. 29*4882a593Smuzhiyun */ 30*4882a593Smuzhiyun spinlock_t lock; 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun int panfrost_devfreq_init(struct panfrost_device *pfdev); 34*4882a593Smuzhiyun void panfrost_devfreq_fini(struct panfrost_device *pfdev); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun void panfrost_devfreq_resume(struct panfrost_device *pfdev); 37*4882a593Smuzhiyun void panfrost_devfreq_suspend(struct panfrost_device *pfdev); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun void panfrost_devfreq_record_busy(struct panfrost_devfreq *devfreq); 40*4882a593Smuzhiyun void panfrost_devfreq_record_idle(struct panfrost_devfreq *devfreq); 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun #endif /* __PANFROST_DEVFREQ_H__ */ 43