475 lines
14 KiB
C
475 lines
14 KiB
C
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/*
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* Copyright 2016 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <asm/div64.h>
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#include "smu7_thermal.h"
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#include "smu7_hwmgr.h"
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#include "smu7_common.h"
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int smu7_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr,
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struct phm_fan_speed_info *fan_speed_info)
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{
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if (hwmgr->thermal_controller.fanInfo.bNoFan)
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return -ENODEV;
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fan_speed_info->supports_percent_read = true;
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fan_speed_info->supports_percent_write = true;
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fan_speed_info->min_percent = 0;
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fan_speed_info->max_percent = 100;
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if (PP_CAP(PHM_PlatformCaps_FanSpeedInTableIsRPM) &&
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hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution) {
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fan_speed_info->supports_rpm_read = true;
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fan_speed_info->supports_rpm_write = true;
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fan_speed_info->min_rpm = hwmgr->thermal_controller.fanInfo.ulMinRPM;
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fan_speed_info->max_rpm = hwmgr->thermal_controller.fanInfo.ulMaxRPM;
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} else {
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fan_speed_info->min_rpm = 0;
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fan_speed_info->max_rpm = 0;
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}
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return 0;
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}
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int smu7_fan_ctrl_get_fan_speed_pwm(struct pp_hwmgr *hwmgr,
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uint32_t *speed)
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{
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uint32_t duty100;
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uint32_t duty;
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uint64_t tmp64;
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if (hwmgr->thermal_controller.fanInfo.bNoFan)
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return -ENODEV;
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duty100 = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL1, FMAX_DUTY100);
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duty = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_THERMAL_STATUS, FDO_PWM_DUTY);
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if (duty100 == 0)
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return -EINVAL;
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tmp64 = (uint64_t)duty * 255;
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do_div(tmp64, duty100);
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*speed = MIN((uint32_t)tmp64, 255);
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return 0;
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}
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int smu7_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed)
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{
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uint32_t tach_period;
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uint32_t crystal_clock_freq;
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if (hwmgr->thermal_controller.fanInfo.bNoFan ||
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!hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution)
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return -ENODEV;
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tach_period = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_TACH_STATUS, TACH_PERIOD);
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if (tach_period == 0)
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return -EINVAL;
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crystal_clock_freq = amdgpu_asic_get_xclk((struct amdgpu_device *)hwmgr->adev);
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*speed = 60 * crystal_clock_freq * 10000 / tach_period;
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return 0;
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}
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/**
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* smu7_fan_ctrl_set_static_mode - Set Fan Speed Control to static mode, so that the user can decide what speed to use.
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* @hwmgr: the address of the powerplay hardware manager.
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* @mode: the fan control mode, 0 default, 1 by percent, 5, by RPM
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* Exception: Should always succeed.
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*/
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int smu7_fan_ctrl_set_static_mode(struct pp_hwmgr *hwmgr, uint32_t mode)
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{
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if (hwmgr->fan_ctrl_is_in_default_mode) {
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hwmgr->fan_ctrl_default_mode =
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PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL2, FDO_PWM_MODE);
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hwmgr->tmin =
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PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL2, TMIN);
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hwmgr->fan_ctrl_is_in_default_mode = false;
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}
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL2, TMIN, 0);
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL2, FDO_PWM_MODE, mode);
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return 0;
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}
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/**
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* smu7_fan_ctrl_set_default_mode - Reset Fan Speed Control to default mode.
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* @hwmgr: the address of the powerplay hardware manager.
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* Exception: Should always succeed.
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*/
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int smu7_fan_ctrl_set_default_mode(struct pp_hwmgr *hwmgr)
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{
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if (!hwmgr->fan_ctrl_is_in_default_mode) {
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL2, FDO_PWM_MODE, hwmgr->fan_ctrl_default_mode);
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL2, TMIN, hwmgr->tmin);
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hwmgr->fan_ctrl_is_in_default_mode = true;
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}
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return 0;
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}
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int smu7_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
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{
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int result;
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if (PP_CAP(PHM_PlatformCaps_ODFuzzyFanControlSupport)) {
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result = smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_StartFanControl,
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FAN_CONTROL_FUZZY, NULL);
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if (PP_CAP(PHM_PlatformCaps_FanSpeedInTableIsRPM))
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hwmgr->hwmgr_func->set_max_fan_rpm_output(hwmgr,
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hwmgr->thermal_controller.
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advanceFanControlParameters.usMaxFanRPM);
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else
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hwmgr->hwmgr_func->set_max_fan_pwm_output(hwmgr,
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hwmgr->thermal_controller.
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advanceFanControlParameters.usMaxFanPWM);
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} else {
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result = smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_StartFanControl,
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FAN_CONTROL_TABLE, NULL);
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}
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if (!result && hwmgr->thermal_controller.
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advanceFanControlParameters.ucTargetTemperature)
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result = smum_send_msg_to_smc_with_parameter(hwmgr,
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PPSMC_MSG_SetFanTemperatureTarget,
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hwmgr->thermal_controller.
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advanceFanControlParameters.ucTargetTemperature,
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NULL);
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if (!result &&
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(hwmgr->chip_id == CHIP_POLARIS10 ||
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hwmgr->chip_id == CHIP_POLARIS11 ||
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hwmgr->chip_id == CHIP_POLARIS12) &&
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hwmgr->thermal_controller.advanceFanControlParameters.ucEnableZeroRPM &&
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!PP_CAP(PHM_PlatformCaps_customThermalManagement))
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result = smum_send_msg_to_smc(hwmgr,
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PPSMC_MSG_EnableZeroRpm,
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NULL);
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hwmgr->fan_ctrl_enabled = true;
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return result;
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}
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int smu7_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr)
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{
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hwmgr->fan_ctrl_enabled = false;
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return smum_send_msg_to_smc(hwmgr, PPSMC_StopFanControl, NULL);
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}
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/**
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* smu7_fan_ctrl_set_fan_speed_pwm - Set Fan Speed in PWM.
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* @hwmgr: the address of the powerplay hardware manager.
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* @speed: is the pwm value (0 - 255) to be set.
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*/
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int smu7_fan_ctrl_set_fan_speed_pwm(struct pp_hwmgr *hwmgr,
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uint32_t speed)
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{
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uint32_t duty100;
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uint32_t duty;
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uint64_t tmp64;
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if (hwmgr->thermal_controller.fanInfo.bNoFan)
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return 0;
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speed = MIN(speed, 255);
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if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl))
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smu7_fan_ctrl_stop_smc_fan_control(hwmgr);
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duty100 = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL1, FMAX_DUTY100);
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if (duty100 == 0)
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return -EINVAL;
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tmp64 = (uint64_t)speed * duty100;
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do_div(tmp64, 255);
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duty = (uint32_t)tmp64;
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_FDO_CTRL0, FDO_STATIC_DUTY, duty);
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return smu7_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC);
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}
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/**
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* smu7_fan_ctrl_reset_fan_speed_to_default - Reset Fan Speed to default.
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* @hwmgr: the address of the powerplay hardware manager.
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* Exception: Always succeeds.
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*/
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int smu7_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr)
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{
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int result;
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if (hwmgr->thermal_controller.fanInfo.bNoFan)
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return 0;
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if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) {
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result = smu7_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC);
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if (!result)
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result = smu7_fan_ctrl_start_smc_fan_control(hwmgr);
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} else
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result = smu7_fan_ctrl_set_default_mode(hwmgr);
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return result;
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}
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/**
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* smu7_fan_ctrl_set_fan_speed_rpm - Set Fan Speed in RPM.
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* @hwmgr: the address of the powerplay hardware manager.
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* @speed: is the percentage value (min - max) to be set.
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* Exception: Fails is the speed not lie between min and max.
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*/
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int smu7_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed)
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{
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uint32_t tach_period;
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uint32_t crystal_clock_freq;
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if (hwmgr->thermal_controller.fanInfo.bNoFan ||
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(hwmgr->thermal_controller.fanInfo.
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ucTachometerPulsesPerRevolution == 0) ||
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speed == 0 ||
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(speed < hwmgr->thermal_controller.fanInfo.ulMinRPM) ||
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(speed > hwmgr->thermal_controller.fanInfo.ulMaxRPM))
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return 0;
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if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl))
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smu7_fan_ctrl_stop_smc_fan_control(hwmgr);
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crystal_clock_freq = amdgpu_asic_get_xclk((struct amdgpu_device *)hwmgr->adev);
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tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed);
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_TACH_CTRL, TARGET_PERIOD, tach_period);
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return smu7_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC_RPM);
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}
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/**
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* smu7_thermal_get_temperature - Reads the remote temperature from the SIslands thermal controller.
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*
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* @hwmgr: The address of the hardware manager.
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*/
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int smu7_thermal_get_temperature(struct pp_hwmgr *hwmgr)
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{
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int temp;
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temp = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_MULT_THERMAL_STATUS, CTF_TEMP);
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/* Bit 9 means the reading is lower than the lowest usable value. */
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if (temp & 0x200)
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temp = SMU7_THERMAL_MAXIMUM_TEMP_READING;
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else
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temp = temp & 0x1ff;
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temp *= PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
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return temp;
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}
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/**
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* smu7_thermal_set_temperature_range - Set the requested temperature range for high and low alert signals
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*
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* @hwmgr: The address of the hardware manager.
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* @low_temp: Temperature to be programmed for high alert signals
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* @high_temp: Temperature to be programmed for low alert signals
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* Exception: PP_Result_BadInput if the input data is not valid.
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*/
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static int smu7_thermal_set_temperature_range(struct pp_hwmgr *hwmgr,
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int low_temp, int high_temp)
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{
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int low = SMU7_THERMAL_MINIMUM_ALERT_TEMP *
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PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
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int high = SMU7_THERMAL_MAXIMUM_ALERT_TEMP *
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PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
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if (low < low_temp)
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low = low_temp;
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if (high > high_temp)
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high = high_temp;
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if (low > high)
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return -EINVAL;
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
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CG_THERMAL_INT, DIG_THERM_INTH,
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(high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES));
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PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_THERMAL_INT, DIG_THERM_INTL,
|
||
|
|
(low / PP_TEMPERATURE_UNITS_PER_CENTIGRADES));
|
||
|
|
PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_THERMAL_CTRL, DIG_THERM_DPM,
|
||
|
|
(high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* smu7_thermal_initialize - Programs thermal controller one-time setting registers
|
||
|
|
*
|
||
|
|
* @hwmgr: The address of the hardware manager.
|
||
|
|
*/
|
||
|
|
static int smu7_thermal_initialize(struct pp_hwmgr *hwmgr)
|
||
|
|
{
|
||
|
|
if (hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution)
|
||
|
|
PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_TACH_CTRL, EDGE_PER_REV,
|
||
|
|
hwmgr->thermal_controller.fanInfo.
|
||
|
|
ucTachometerPulsesPerRevolution - 1);
|
||
|
|
|
||
|
|
PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_FDO_CTRL2, TACH_PWM_RESP_RATE, 0x28);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* smu7_thermal_enable_alert - Enable thermal alerts on the RV770 thermal controller.
|
||
|
|
*
|
||
|
|
* @hwmgr: The address of the hardware manager.
|
||
|
|
*/
|
||
|
|
static void smu7_thermal_enable_alert(struct pp_hwmgr *hwmgr)
|
||
|
|
{
|
||
|
|
uint32_t alert;
|
||
|
|
|
||
|
|
alert = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_THERMAL_INT, THERM_INT_MASK);
|
||
|
|
alert &= ~(SMU7_THERMAL_HIGH_ALERT_MASK | SMU7_THERMAL_LOW_ALERT_MASK);
|
||
|
|
PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_THERMAL_INT, THERM_INT_MASK, alert);
|
||
|
|
|
||
|
|
/* send message to SMU to enable internal thermal interrupts */
|
||
|
|
smum_send_msg_to_smc(hwmgr, PPSMC_MSG_Thermal_Cntl_Enable, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* smu7_thermal_disable_alert - Disable thermal alerts on the RV770 thermal controller.
|
||
|
|
* @hwmgr: The address of the hardware manager.
|
||
|
|
*/
|
||
|
|
int smu7_thermal_disable_alert(struct pp_hwmgr *hwmgr)
|
||
|
|
{
|
||
|
|
uint32_t alert;
|
||
|
|
|
||
|
|
alert = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_THERMAL_INT, THERM_INT_MASK);
|
||
|
|
alert |= (SMU7_THERMAL_HIGH_ALERT_MASK | SMU7_THERMAL_LOW_ALERT_MASK);
|
||
|
|
PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
|
||
|
|
CG_THERMAL_INT, THERM_INT_MASK, alert);
|
||
|
|
|
||
|
|
/* send message to SMU to disable internal thermal interrupts */
|
||
|
|
return smum_send_msg_to_smc(hwmgr, PPSMC_MSG_Thermal_Cntl_Disable, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* smu7_thermal_stop_thermal_controller - Uninitialize the thermal controller.
|
||
|
|
* Currently just disables alerts.
|
||
|
|
* @hwmgr: The address of the hardware manager.
|
||
|
|
*/
|
||
|
|
int smu7_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
|
||
|
|
{
|
||
|
|
int result = smu7_thermal_disable_alert(hwmgr);
|
||
|
|
|
||
|
|
if (!hwmgr->thermal_controller.fanInfo.bNoFan)
|
||
|
|
smu7_fan_ctrl_set_default_mode(hwmgr);
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* smu7_thermal_start_smc_fan_control - Start the fan control on the SMC.
|
||
|
|
* @hwmgr: the address of the powerplay hardware manager.
|
||
|
|
* Return: result from set temperature range routine
|
||
|
|
*/
|
||
|
|
static int smu7_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr)
|
||
|
|
{
|
||
|
|
/* If the fantable setup has failed we could have disabled
|
||
|
|
* PHM_PlatformCaps_MicrocodeFanControl even after
|
||
|
|
* this function was included in the table.
|
||
|
|
* Make sure that we still think controlling the fan is OK.
|
||
|
|
*/
|
||
|
|
if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) {
|
||
|
|
smu7_fan_ctrl_start_smc_fan_control(hwmgr);
|
||
|
|
smu7_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int smu7_start_thermal_controller(struct pp_hwmgr *hwmgr,
|
||
|
|
struct PP_TemperatureRange *range)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
if (range == NULL)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
smu7_thermal_initialize(hwmgr);
|
||
|
|
ret = smu7_thermal_set_temperature_range(hwmgr, range->min, range->max);
|
||
|
|
if (ret)
|
||
|
|
return -EINVAL;
|
||
|
|
smu7_thermal_enable_alert(hwmgr);
|
||
|
|
ret = smum_thermal_avfs_enable(hwmgr);
|
||
|
|
if (ret)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
/* We should restrict performance levels to low before we halt the SMC.
|
||
|
|
* On the other hand we are still in boot state when we do this
|
||
|
|
* so it would be pointless.
|
||
|
|
* If this assumption changes we have to revisit this table.
|
||
|
|
*/
|
||
|
|
smum_thermal_setup_fan_table(hwmgr);
|
||
|
|
smu7_thermal_start_smc_fan_control(hwmgr);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
int smu7_thermal_ctrl_uninitialize_thermal_controller(struct pp_hwmgr *hwmgr)
|
||
|
|
{
|
||
|
|
if (!hwmgr->thermal_controller.fanInfo.bNoFan)
|
||
|
|
smu7_fan_ctrl_set_default_mode(hwmgr);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|