330 lines
10 KiB
C
330 lines
10 KiB
C
/*
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* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __MSM_THERMAL_H
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#define __MSM_THERMAL_H
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#include <linux/thermal.h>
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#define MAX_THRESHOLD 2
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#define TSENS_NAME_MAX 20
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#define MONITOR_ALL_TSENS -1
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#define HOTPLUG_DEVICE "hotplug"
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#define CPU0_DEVICE "cpu0"
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#define CPU1_DEVICE "cpu1"
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#define CPU2_DEVICE "cpu2"
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#define CPU3_DEVICE "cpu3"
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#define CPU4_DEVICE "cpu4"
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#define CPU5_DEVICE "cpu5"
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#define CPU6_DEVICE "cpu6"
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#define CPU7_DEVICE "cpu7"
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#define CPUFREQ_MAX_NO_MITIGATION UINT_MAX
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#define CPUFREQ_MIN_NO_MITIGATION 0
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#define HOTPLUG_NO_MITIGATION(_mask) cpumask_clear(_mask)
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#define IS_HI_THRESHOLD_SET(_val) (_val & 1)
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#define IS_LOW_THRESHOLD_SET(_val) (_val & 2)
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struct msm_thermal_data {
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struct platform_device *pdev;
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uint32_t sensor_id;
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uint32_t poll_ms;
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int32_t limit_temp_degC;
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int32_t temp_hysteresis_degC;
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uint32_t bootup_freq_step;
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uint32_t bootup_freq_control_mask;
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int32_t core_limit_temp_degC;
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int32_t core_temp_hysteresis_degC;
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int32_t hotplug_temp_degC;
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int32_t hotplug_temp_hysteresis_degC;
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uint32_t core_control_mask;
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uint32_t freq_mitig_temp_degc;
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uint32_t freq_mitig_temp_hysteresis_degc;
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uint32_t freq_mitig_control_mask;
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uint32_t freq_limit;
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int32_t vdd_rstr_temp_degC;
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int32_t vdd_rstr_temp_hyst_degC;
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int32_t vdd_mx_min;
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int32_t psm_temp_degC;
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int32_t psm_temp_hyst_degC;
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int32_t ocr_temp_degC;
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int32_t ocr_temp_hyst_degC;
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uint32_t ocr_sensor_id;
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int32_t phase_rpm_resource_type;
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int32_t phase_rpm_resource_id;
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int32_t gfx_phase_warm_temp_degC;
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int32_t gfx_phase_warm_temp_hyst_degC;
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int32_t gfx_phase_hot_temp_degC;
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int32_t gfx_phase_hot_temp_hyst_degC;
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int32_t gfx_sensor;
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int32_t gfx_phase_request_key;
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int32_t cx_phase_hot_temp_degC;
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int32_t cx_phase_hot_temp_hyst_degC;
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int32_t cx_phase_request_key;
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int32_t vdd_mx_temp_degC;
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int32_t vdd_mx_temp_hyst_degC;
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int32_t therm_reset_temp_degC;
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};
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enum sensor_id_type {
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THERM_ZONE_ID,
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THERM_TSENS_ID,
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THERM_ID_MAX_NR,
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};
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struct threshold_info;
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struct therm_threshold {
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int32_t sensor_id;
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enum sensor_id_type id_type;
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struct sensor_threshold threshold[MAX_THRESHOLD];
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int32_t trip_triggered;
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void (*notify)(struct therm_threshold *);
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struct threshold_info *parent;
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};
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struct threshold_info {
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uint32_t thresh_ct;
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bool thresh_triggered;
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struct list_head list_ptr;
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struct therm_threshold *thresh_list;
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};
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enum device_req_type {
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DEVICE_REQ_NONE = -1,
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HOTPLUG_MITIGATION_REQ,
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CPUFREQ_MITIGATION_REQ,
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DEVICE_REQ_MAX,
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};
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/**
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* For frequency mitigation request, if client is interested
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* only in one, either max_freq or min_freq, update default
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* value for other one also for mitigation request.
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* Default value for request structure variables:
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* max_freq = UINT_MAX;
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* min_freq = 0;
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* offline_mask = CPU_MASK_NONE;
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*/
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struct cpufreq_request {
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uint32_t max_freq;
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uint32_t min_freq;
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};
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union device_request {
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struct cpufreq_request freq;
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cpumask_t offline_mask;
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};
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struct device_clnt_data;
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struct device_manager_data {
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char device_name[TSENS_NAME_MAX];
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union device_request active_req;
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struct list_head client_list;
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struct list_head dev_ptr;
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struct mutex clnt_lock;
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int (*request_validate)(struct device_clnt_data *,
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union device_request *,
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enum device_req_type);
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int (*update)(struct device_manager_data *);
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void *data;
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};
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struct device_clnt_data {
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struct device_manager_data *dev_mgr;
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bool req_active;
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union device_request request;
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struct list_head clnt_ptr;
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void (*callback)(struct device_clnt_data *,
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union device_request *req, void *);
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void *usr_data;
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};
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#ifdef CONFIG_THERMAL_MONITOR
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extern int msm_thermal_init(struct msm_thermal_data *pdata);
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extern int msm_thermal_device_init(void);
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extern int msm_thermal_set_frequency(uint32_t cpu, uint32_t freq,
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bool is_max);
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extern int msm_thermal_set_cluster_freq(uint32_t cluster, uint32_t freq,
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bool is_max);
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extern int msm_thermal_get_freq_plan_size(uint32_t cluster,
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unsigned int *table_len);
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extern int msm_thermal_get_cluster_freq_plan(uint32_t cluster,
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unsigned int *table_ptr);
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extern int msm_thermal_get_cluster_voltage_plan(uint32_t cluster,
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uint32_t *table_ptr);
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/**
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* sensor_mgr_init_threshold - Initialize thresholds data structure for
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* sensor(s) with high and low thresholds and
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* threshold callback.
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*
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* @thresh_inp: Client threshold data structure.
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* @sensor_id: Sensor h/w ID to be monitored. Use MONITOR_ALL_TSENS
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* to monitor all temperature sensors.
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*
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* @high_temp: Trigger threshold value for sensor_id or all sensors.
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* @low_temp: Clear threshold value for sensor_id or all sensors.
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* @callback: Callback pointer for threshold notification.
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*
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* Returns which threshold is set on success, negative error number
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* on failure. MACRO IS_HI_THRESHOLD_SET/IS_LOW_THRESHOLD_SET can be used
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* to decipher which threshold being set.
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*/
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extern int sensor_mgr_init_threshold(struct threshold_info *thresh_inp,
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int sensor_id, int32_t high_temp,
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int32_t low_temp,
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void (*callback)(struct therm_threshold *));
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/**
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* sensor_mgr_convert_id_and_set_threshold - It accepts sensor h/w ID, converts
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* it to sensor zone id and sets
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* thermal threshold for those
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* sensors listed in threshold info.
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*
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* @thresh_inp: Client threshold data structure.
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*
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* Returns zero on success, negative error number on failure.
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*/
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extern int sensor_mgr_convert_id_and_set_threshold(
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struct threshold_info *thresh_inp);
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/**
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* sensor_mgr_set_threshold- It sets thermal threshold trips for a sensor.
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*
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* @zone_id: Thermal zone ID for the sensor.
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* @threshold: threshold info for the sensor.
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*
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* Returns zero on success, negative error number on failure.
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*/
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extern int sensor_mgr_set_threshold(uint32_t zone_id,
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struct sensor_threshold *threshold);
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/**
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* sensor_mgr_remove_threshold- It cancels threshold notification and
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* removes threshold from sensor manager
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* threshold list.
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*
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* @thresh_inp: The threshold info which needs to be removed.
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*/
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extern void sensor_mgr_remove_threshold(struct threshold_info *thresh_inp);
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/**
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* devmgr_register_mitigation_client - Register for a device and
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* gets a handle for mitigation.
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* @dev: Client device structure.
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* @device_name: Mitgation device name which the client is interested
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* to mitigate.
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* @callback: Optional callback pointer for device change notification,
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* otherwise pass NULL.
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*
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* Returns client handle structure for that device on success, or NULL
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* with IS_ERR() condition containing error number.
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*/
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extern struct device_clnt_data *devmgr_register_mitigation_client(
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struct device *dev,
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const char *device_name,
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void (*callback)(struct device_clnt_data *,
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union device_request *, void *));
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/**
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* devmgr_client_request_mitigation - Set a valid mitigation for
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* registered device.
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* @clnt: Client handle for device.
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* @type: Type of device request populated above.
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* @req: Valid mitigation request.
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*
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* Returns zero on successful mitigation update, or negative error number.
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*/
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extern int devmgr_client_request_mitigation(struct device_clnt_data *clnt,
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enum device_req_type type,
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union device_request *req);
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/**
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* devmgr_unregister_mitigation_client - Unregister mitigation device
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* @dev: Client device structure.
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* @clnt: Client handle for device.
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*/
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extern void devmgr_unregister_mitigation_client(
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struct device *dev,
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struct device_clnt_data *clnt);
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#else
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static inline int msm_thermal_init(struct msm_thermal_data *pdata)
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{
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return -ENOSYS;
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}
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static inline int msm_thermal_device_init(void)
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{
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return -ENOSYS;
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}
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static inline int msm_thermal_set_frequency(uint32_t cpu, uint32_t freq,
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bool is_max)
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{
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return -ENOSYS;
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}
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static inline int msm_thermal_set_cluster_freq(uint32_t cluster, uint32_t freq,
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bool is_max);
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{
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return -ENOSYS;
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}
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static inline int msm_thermal_get_freq_plan_size(uint32_t cluster,
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unsigned int *table_len);
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{
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return -ENOSYS;
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}
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static inline int msm_thermal_get_cluster_freq_plan(uint32_t cluster,
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unsigned int *table_ptr);
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{
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return -ENOSYS;
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}
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static inline int msm_thermal_get_cluster_voltage_plan(uint32_t cluster,
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uint32_t *table_ptr);
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{
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return -ENOSYS;
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}
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static inline int sensor_mgr_init_threshold(struct threshold_info *thresh_inp,
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int sensor_id, int32_t high_temp,
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int32_t low_temp,
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void (*callback)(struct therm_threshold *))
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{
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return -ENOSYS;
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}
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static inline int sensor_mgr_convert_id_and_set_threshold(
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struct threshold_info *thresh_inp)
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{
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return -ENOSYS;
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}
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static inline int sensor_mgr_set_threshold(uint32_t zone_id,
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struct sensor_threshold *threshold)
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{
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return -ENOSYS;
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}
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static inline void sensor_mgr_remove_threshold(
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struct threshold_info *thresh_inp)
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{
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}
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static inline struct device_clnt_data *devmgr_register_mitigation_client(
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struct device *dev,
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const char *device_name,
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void (*callback)(struct device_clnt_data *,
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union device_request *, void *))
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{
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return NULL;
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}
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static inline int devmgr_client_request_mitigation(
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struct device_clnt_data *clnt,
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enum device_req_type type,
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union device_request *req)
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{
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return -ENOSYS;
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}
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static inline void devmgr_unregister_mitigation_client(
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struct device *dev,
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struct device_clnt_data *clnt)
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{
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}
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#endif
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#endif /*__MSM_THERMAL_H*/
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