200 lines
6.3 KiB
C
200 lines
6.3 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
|
|
/*
|
|
* Copyright (C) 2019, Fuzhou Rockchip Electronics Co., Ltd
|
|
*/
|
|
|
|
#ifndef __SOC_ROCKCHIP_SYSTEM_MONITOR_H
|
|
#define __SOC_ROCKCHIP_SYSTEM_MONITOR_H
|
|
|
|
enum monitor_dev_type {
|
|
MONITOR_TPYE_CPU = 0, /* CPU */
|
|
MONITOR_TPYE_DEV, /* GPU, NPU, DMC, and so on */
|
|
};
|
|
|
|
struct volt_adjust_table {
|
|
unsigned int min; /* Minimum frequency in MHz */
|
|
unsigned int max; /* Maximum frequency in MHz */
|
|
int volt; /* Voltage in microvolt */
|
|
};
|
|
|
|
struct temp_freq_table {
|
|
int temp; /* millicelsius */
|
|
unsigned int freq; /* KHz */
|
|
};
|
|
|
|
/**
|
|
* struct temp_opp_table - System monitor device OPP description structure
|
|
* @rate: Frequency in hertz
|
|
* @volt: Target voltage in microvolt
|
|
* @low_temp_volt: Target voltage when low temperature, in microvolt
|
|
* @max_volt: Maximum voltage in microvolt
|
|
*/
|
|
struct temp_opp_table {
|
|
unsigned long rate;
|
|
unsigned long volt;
|
|
unsigned long low_temp_volt;
|
|
unsigned long max_volt;
|
|
};
|
|
|
|
/**
|
|
* struct monitor_dev_info - structure for a system monitor device
|
|
* @dev: Device registered by system monitor
|
|
* @devfreq_nb: Notifier block used to notify devfreq object
|
|
* that it should reevaluate operable frequencies
|
|
* @low_temp_adjust_table: Voltage margin for different OPPs when lowe
|
|
* temperature
|
|
* @opp_table: Frequency and voltage information of device
|
|
* @devp: Device-specific system monitor profile
|
|
* @node: Node in monitor_dev_list
|
|
* @temp_freq_table: Maximum frequency at different temperature and the
|
|
* frequency will not be changed by thermal framework.
|
|
* @high_limit_table: Limit maximum frequency at different temperature,
|
|
* but the frequency is also changed by thermal framework.
|
|
* @volt_adjust_mutex: A mutex to protect changing voltage.
|
|
* @low_limit: Limit maximum frequency when low temperature, in Hz
|
|
* @high_limit: Limit maximum frequency when high temperature, in Hz
|
|
* @max_volt: Maximum voltage in microvolt
|
|
* @low_temp_min_volt: Minimum voltage of OPPs when low temperature, in
|
|
* microvolt
|
|
* @high_temp_max_volt: Maximum voltage when high temperature, in microvolt
|
|
* @wide_temp_limit: Target maximum frequency when low or high temperature,
|
|
* in Hz
|
|
* @video_4k_freq: Maximum frequency when paly 4k video, in KHz
|
|
* @reboot_freq: Limit maximum and minimum frequency when reboot, in KHz
|
|
* @status_min_limit: Minimum frequency of some status frequency, in KHz
|
|
* @status_max_limit: Minimum frequency of all status frequency, in KHz
|
|
* @freq_table: Optional list of frequencies in descending order
|
|
* @max_state: The size of freq_table
|
|
* @low_temp: Low temperature trip point, in millicelsius
|
|
* @high_temp: High temperature trip point, in millicelsius
|
|
* @temp_hysteresis: A low hysteresis value on low_temp, in millicelsius
|
|
* @is_low_temp: True if current temperature less than low_temp
|
|
* @is_high_temp: True if current temperature greater than high_temp
|
|
* @is_low_temp_enabled: True if device node contains low temperature
|
|
* configuration
|
|
* @is_status_freq_fixed: True if enter into some status
|
|
*/
|
|
struct monitor_dev_info {
|
|
struct device *dev;
|
|
struct notifier_block devfreq_nb;
|
|
struct volt_adjust_table *low_temp_adjust_table;
|
|
struct temp_opp_table *opp_table;
|
|
struct monitor_dev_profile *devp;
|
|
struct list_head node;
|
|
struct temp_freq_table *temp_freq_table;
|
|
struct temp_freq_table *high_limit_table;
|
|
struct mutex volt_adjust_mutex;
|
|
unsigned long low_limit;
|
|
unsigned long high_limit;
|
|
unsigned long max_volt;
|
|
unsigned long low_temp_min_volt;
|
|
unsigned long high_temp_max_volt;
|
|
unsigned long wide_temp_limit;
|
|
unsigned int video_4k_freq;
|
|
unsigned int reboot_freq;
|
|
unsigned int status_min_limit;
|
|
unsigned int status_max_limit;
|
|
unsigned long *freq_table;
|
|
unsigned int max_state;
|
|
int low_temp;
|
|
int high_temp;
|
|
int temp_hysteresis;
|
|
bool is_low_temp;
|
|
bool is_high_temp;
|
|
bool is_low_temp_enabled;
|
|
bool is_status_freq_fixed;
|
|
bool boosted;
|
|
};
|
|
|
|
struct monitor_dev_profile {
|
|
enum monitor_dev_type type;
|
|
void *data;
|
|
int (*low_temp_adjust_volt)(struct monitor_dev_info *info);
|
|
int (*low_temp_adjust)(struct monitor_dev_info *info, bool is_low);
|
|
int (*high_temp_adjust)(struct monitor_dev_info *info, bool is_low);
|
|
struct cpumask allowed_cpus;
|
|
};
|
|
|
|
#if IS_ENABLED(CONFIG_ROCKCHIP_SYSTEM_MONITOR)
|
|
struct monitor_dev_info *
|
|
rockchip_system_monitor_register(struct device *dev,
|
|
struct monitor_dev_profile *devp);
|
|
void rockchip_system_monitor_unregister(struct monitor_dev_info *info);
|
|
int rockchip_monitor_cpu_low_temp_adjust(struct monitor_dev_info *info,
|
|
bool is_low);
|
|
int rockchip_monitor_cpu_high_temp_adjust(struct monitor_dev_info *info,
|
|
bool is_high);
|
|
int rockchip_monitor_dev_low_temp_adjust(struct monitor_dev_info *info,
|
|
bool is_low);
|
|
int rockchip_monitor_dev_high_temp_adjust(struct monitor_dev_info *info,
|
|
bool is_high);
|
|
int rockchip_monitor_suspend_low_temp_adjust(int cpu);
|
|
int
|
|
rockchip_system_monitor_adjust_cdev_state(struct thermal_cooling_device *cdev,
|
|
int temp, unsigned long *state);
|
|
int rockchip_monitor_opp_set_rate(struct monitor_dev_info *info,
|
|
unsigned long target_freq);
|
|
void rockchip_monitor_set_boosted(void);
|
|
void rockchip_monitor_clear_boosted(void);
|
|
#else
|
|
static inline struct monitor_dev_info *
|
|
rockchip_system_monitor_register(struct device *dev,
|
|
struct monitor_dev_profile *devp)
|
|
{
|
|
return ERR_PTR(-ENOTSUPP);
|
|
};
|
|
|
|
static inline void
|
|
rockchip_system_monitor_unregister(struct monitor_dev_info *info)
|
|
{
|
|
}
|
|
|
|
static inline int
|
|
rockchip_monitor_cpu_low_temp_adjust(struct monitor_dev_info *info, bool is_low)
|
|
{
|
|
return 0;
|
|
};
|
|
|
|
static inline int
|
|
rockchip_monitor_cpu_high_temp_adjust(struct monitor_dev_info *info,
|
|
bool is_high)
|
|
{
|
|
return 0;
|
|
};
|
|
|
|
static inline int
|
|
rockchip_monitor_dev_low_temp_adjust(struct monitor_dev_info *info, bool is_low)
|
|
{
|
|
return 0;
|
|
};
|
|
|
|
static inline int
|
|
rockchip_monitor_dev_high_temp_adjust(struct monitor_dev_info *info,
|
|
bool is_high)
|
|
{
|
|
return 0;
|
|
};
|
|
|
|
static inline int rockchip_monitor_suspend_low_temp_adjust(int cpu)
|
|
{
|
|
return 0;
|
|
};
|
|
|
|
static inline int
|
|
rockchip_system_monitor_adjust_cdev_state(struct thermal_cooling_device *cdev,
|
|
int temp, unsigned long *state)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int rockchip_monitor_opp_set_rate(struct monitor_dev_info *info,
|
|
unsigned long target_freq)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void rockchip_monitor_set_boosted(void) {};
|
|
static inline void rockchip_monitor_set_boosted(void) {};
|
|
#endif /* CONFIG_ROCKCHIP_SYSTEM_MONITOR */
|
|
|
|
#endif
|