drivers/gpu/arm/midgard/platform/rk/mali_kbase_dvfs.h

   1 /* drivers/gpu/midgard/platform/rk/mali_kbase_dvfs.h
   2  *
   3  * Rockchip SoC Mali-T764 DVFS driver
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software FoundatIon.
   8  */
   9
  10 /**
  11  * @file mali_kbase_dvfs.h
  12  * DVFS
  13  */
  14
  15 #ifndef _KBASE_DVFS_H_
  16 #define _KBASE_DVFS_H_
  17
  18 /* Frequency that DVFS clock frequency decisions should be made */
  19 #define KBASE_PM_DVFS_FREQUENCY                 100
  20
  21 #define MALI_DVFS_KEEP_STAY_CNT 10
  22 #define MALI_DVFS_UP_TIME_INTERVAL 1
  23 #define MALI_DVFS_DOWN_TIME_INTERVAL 2
  24 #define MALI_DVFS_CURRENT_FREQ 0
  25 #if 0
  26 #define MALI_DVFS_BL_CONFIG_FREQ 500
  27 #define MALI_DVFS_START_FREQ 400
  28 #endif
  29 typedef struct _mali_dvfs_info {
  30         unsigned int voltage;
  31         unsigned int clock;
  32         int min_threshold;
  33         int max_threshold;
  34         unsigned long long time;
  35 } mali_dvfs_info;
  36
  37 #define MALI_KHZ 1000
  38 extern mali_dvfs_info *p_mali_dvfs_infotbl;
  39 extern unsigned int MALI_DVFS_STEP;
  40 #ifdef CONFIG_MALI_MIDGARD_DVFS
  41 #define CONFIG_MALI_MIDGARD_FREQ_LOCK
  42 #endif
  43
  44 void kbase_platform_dvfs_set_clock(struct kbase_device *kbdev, int freq);
  45 void kbase_platform_dvfs_set_level(struct kbase_device *kbdev, int level);
  46 int kbase_platform_dvfs_get_level(int freq);
  47
  48 #ifdef CONFIG_MALI_MIDGARD_DVFS
  49 int kbase_platform_dvfs_init(struct kbase_device *dev);
  50 void kbase_platform_dvfs_term(void);
  51 /*int kbase_platform_dvfs_event(struct kbase_device *kbdev, u32 utilisation);*/
  52 /*int kbase_platform_dvfs_event(struct kbase_device *kbdev, u32 utilisation,u32 util_gl_share, u32 util_cl_share[2]);*/
  53 int kbase_platform_dvfs_get_enable_status(void);
  54 int kbase_platform_dvfs_enable(bool enable, int freq);
  55 int kbase_platform_dvfs_get_utilisation(void);
  56 #endif
  57
  58 int mali_get_dvfs_current_level(void);
  59 int mali_get_dvfs_upper_locked_freq(void);
  60 int mali_get_dvfs_under_locked_freq(void);
  61 int mali_dvfs_freq_lock(int level);
  62 void mali_dvfs_freq_unlock(void);
  63 int mali_dvfs_freq_under_lock(int level);
  64 void mali_dvfs_freq_under_unlock(void);
  65
  66 ssize_t show_time_in_state(struct device *dev, struct device_attribute *attr, char *buf);
  67 ssize_t set_time_in_state(struct device *dev, struct device_attribute *attr, const char *buf, size_t count);
  68
  69 #endif                          /* _KBASE_DVFS_H_ */