309 lines
9.0 KiB
C
309 lines
9.0 KiB
C
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/*
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* Copyright 2017 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 "vega12_thermal.h"
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#include "vega12_hwmgr.h"
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#include "vega12_smumgr.h"
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#include "vega12_ppsmc.h"
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#include "vega12_inc.h"
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#include "soc15_common.h"
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#include "pp_debug.h"
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static int vega12_get_current_rpm(struct pp_hwmgr *hwmgr, uint32_t *current_rpm)
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{
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PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr,
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PPSMC_MSG_GetCurrentRpm,
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current_rpm),
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"Attempt to get current RPM from SMC Failed!",
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return -EINVAL);
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return 0;
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}
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int vega12_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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memset(fan_speed_info, 0, sizeof(*fan_speed_info));
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fan_speed_info->supports_percent_read = false;
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fan_speed_info->supports_percent_write = false;
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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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return 0;
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}
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int vega12_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed)
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{
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*speed = 0;
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return vega12_get_current_rpm(hwmgr, speed);
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}
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/**
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* vega12_enable_fan_control_feature -Enables the SMC Fan Control Feature.
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*
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* @hwmgr: the address of the powerplay hardware manager.
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* Return: 0 on success. -1 otherwise.
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*/
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static int vega12_enable_fan_control_feature(struct pp_hwmgr *hwmgr)
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{
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#if 0
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struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
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if (data->smu_features[GNLD_FAN_CONTROL].supported) {
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PP_ASSERT_WITH_CODE(!vega12_enable_smc_features(
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hwmgr, true,
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data->smu_features[GNLD_FAN_CONTROL].
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smu_feature_bitmap),
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"Attempt to Enable FAN CONTROL feature Failed!",
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return -1);
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data->smu_features[GNLD_FAN_CONTROL].enabled = true;
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}
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#endif
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return 0;
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}
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static int vega12_disable_fan_control_feature(struct pp_hwmgr *hwmgr)
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{
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#if 0
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struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
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if (data->smu_features[GNLD_FAN_CONTROL].supported) {
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PP_ASSERT_WITH_CODE(!vega12_enable_smc_features(
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hwmgr, false,
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data->smu_features[GNLD_FAN_CONTROL].
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smu_feature_bitmap),
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"Attempt to Enable FAN CONTROL feature Failed!",
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return -1);
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data->smu_features[GNLD_FAN_CONTROL].enabled = false;
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}
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#endif
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return 0;
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}
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int vega12_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
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{
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struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
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if (data->smu_features[GNLD_FAN_CONTROL].supported)
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PP_ASSERT_WITH_CODE(
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!vega12_enable_fan_control_feature(hwmgr),
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"Attempt to Enable SMC FAN CONTROL Feature Failed!",
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return -1);
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return 0;
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}
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int vega12_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr)
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{
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struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
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if (data->smu_features[GNLD_FAN_CONTROL].supported)
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PP_ASSERT_WITH_CODE(!vega12_disable_fan_control_feature(hwmgr),
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"Attempt to Disable SMC FAN CONTROL Feature Failed!",
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return -1);
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return 0;
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}
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/**
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* vega12_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 vega12_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr)
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{
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return vega12_fan_ctrl_start_smc_fan_control(hwmgr);
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}
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/**
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* vega12_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 vega12_thermal_get_temperature(struct pp_hwmgr *hwmgr)
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{
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struct amdgpu_device *adev = hwmgr->adev;
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int temp = 0;
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temp = RREG32_SOC15(THM, 0, mmCG_MULT_THERMAL_STATUS);
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temp = (temp & CG_MULT_THERMAL_STATUS__CTF_TEMP_MASK) >>
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CG_MULT_THERMAL_STATUS__CTF_TEMP__SHIFT;
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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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* vega12_thermal_set_temperature_range - Set the requested temperature range
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* 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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* @range: Temperature range to be programmed for
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* high and 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 vega12_thermal_set_temperature_range(struct pp_hwmgr *hwmgr,
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struct PP_TemperatureRange *range)
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{
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struct phm_ppt_v3_information *pptable_information =
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(struct phm_ppt_v3_information *)hwmgr->pptable;
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struct amdgpu_device *adev = hwmgr->adev;
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int low = VEGA12_THERMAL_MINIMUM_ALERT_TEMP;
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int high = VEGA12_THERMAL_MAXIMUM_ALERT_TEMP;
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uint32_t val;
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/* compare them in unit celsius degree */
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if (low < range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)
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low = range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
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if (high > pptable_information->us_software_shutdown_temp)
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high = pptable_information->us_software_shutdown_temp;
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if (low > high)
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return -EINVAL;
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val = RREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL);
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val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, MAX_IH_CREDIT, 5);
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val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, THERM_IH_HW_ENA, 1);
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val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTH, high);
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val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTL, low);
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val = val & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK);
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WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL, val);
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return 0;
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}
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/**
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* vega12_thermal_enable_alert - Enable thermal alerts on the RV770 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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static int vega12_thermal_enable_alert(struct pp_hwmgr *hwmgr)
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{
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struct amdgpu_device *adev = hwmgr->adev;
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uint32_t val = 0;
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val |= (1 << THM_THERMAL_INT_ENA__THERM_INTH_CLR__SHIFT);
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val |= (1 << THM_THERMAL_INT_ENA__THERM_INTL_CLR__SHIFT);
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val |= (1 << THM_THERMAL_INT_ENA__THERM_TRIGGER_CLR__SHIFT);
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WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, val);
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return 0;
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}
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/**
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* vega12_thermal_disable_alert - Disable thermal alerts on the RV770 thermal controller.
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* @hwmgr: The address of the hardware manager.
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*/
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int vega12_thermal_disable_alert(struct pp_hwmgr *hwmgr)
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{
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struct amdgpu_device *adev = hwmgr->adev;
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WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, 0);
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return 0;
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}
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/**
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* vega12_thermal_stop_thermal_controller - Uninitialize the thermal controller.
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* Currently just disables alerts.
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* @hwmgr: The address of the hardware manager.
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*/
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int vega12_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
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{
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int result = vega12_thermal_disable_alert(hwmgr);
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return result;
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}
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/**
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* vega12_thermal_setup_fan_table - Set up the fan table to control the fan using the SMC.
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* @hwmgr: the address of the powerplay hardware manager.
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*/
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static int vega12_thermal_setup_fan_table(struct pp_hwmgr *hwmgr)
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{
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int ret;
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struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
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PPTable_t *table = &(data->smc_state_table.pp_table);
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ret = smum_send_msg_to_smc_with_parameter(hwmgr,
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PPSMC_MSG_SetFanTemperatureTarget,
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(uint32_t)table->FanTargetTemperature,
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NULL);
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return ret;
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}
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/**
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* vega12_thermal_start_smc_fan_control - Start the fan control on the SMC.
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* @hwmgr: the address of the powerplay hardware manager.
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* Return: result from set temperature range routine
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*/
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static int vega12_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr)
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{
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/* If the fantable setup has failed we could have disabled
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* PHM_PlatformCaps_MicrocodeFanControl even after
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* this function was included in the table.
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* Make sure that we still think controlling the fan is OK.
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*/
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if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl))
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vega12_fan_ctrl_start_smc_fan_control(hwmgr);
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return 0;
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}
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int vega12_start_thermal_controller(struct pp_hwmgr *hwmgr,
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struct PP_TemperatureRange *range)
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{
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int ret = 0;
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if (range == NULL)
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return -EINVAL;
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ret = vega12_thermal_set_temperature_range(hwmgr, range);
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if (ret)
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return -EINVAL;
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vega12_thermal_enable_alert(hwmgr);
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/* We should restrict performance levels to low before we halt the SMC.
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* On the other hand we are still in boot state when we do this
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* so it would be pointless.
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* If this assumption changes we have to revisit this table.
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*/
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ret = vega12_thermal_setup_fan_table(hwmgr);
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if (ret)
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return -EINVAL;
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vega12_thermal_start_smc_fan_control(hwmgr);
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return 0;
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};
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