diff options
Diffstat (limited to 'drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_thermal.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_thermal.c | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_thermal.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_thermal.c new file mode 100644 index 000000000000..7ace439dcde7 --- /dev/null +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega12_thermal.c @@ -0,0 +1,317 @@ +/* + * Copyright 2017 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include "vega12_thermal.h" +#include "vega12_hwmgr.h" +#include "vega12_smumgr.h" +#include "vega12_ppsmc.h" +#include "vega12_inc.h" +#include "soc15_common.h" +#include "pp_debug.h" + +static int vega12_get_current_rpm(struct pp_hwmgr *hwmgr, uint32_t *current_rpm) +{ + PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr, + PPSMC_MSG_GetCurrentRpm, + current_rpm), + "Attempt to get current RPM from SMC Failed!", + return -EINVAL); + + return 0; +} + +int vega12_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr, + struct phm_fan_speed_info *fan_speed_info) +{ + memset(fan_speed_info, 0, sizeof(*fan_speed_info)); + fan_speed_info->supports_percent_read = false; + fan_speed_info->supports_percent_write = false; + fan_speed_info->supports_rpm_read = true; + fan_speed_info->supports_rpm_write = true; + + return 0; +} + +int vega12_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed) +{ + *speed = 0; + + return vega12_get_current_rpm(hwmgr, speed); +} + +/** + * @fn vega12_enable_fan_control_feature + * @brief Enables the SMC Fan Control Feature. + * + * @param hwmgr - the address of the powerplay hardware manager. + * @return 0 on success. -1 otherwise. + */ +static int vega12_enable_fan_control_feature(struct pp_hwmgr *hwmgr) +{ +#if 0 + struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); + + if (data->smu_features[GNLD_FAN_CONTROL].supported) { + PP_ASSERT_WITH_CODE(!vega12_enable_smc_features( + hwmgr, true, + data->smu_features[GNLD_FAN_CONTROL]. + smu_feature_bitmap), + "Attempt to Enable FAN CONTROL feature Failed!", + return -1); + data->smu_features[GNLD_FAN_CONTROL].enabled = true; + } +#endif + return 0; +} + +static int vega12_disable_fan_control_feature(struct pp_hwmgr *hwmgr) +{ +#if 0 + struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); + + if (data->smu_features[GNLD_FAN_CONTROL].supported) { + PP_ASSERT_WITH_CODE(!vega12_enable_smc_features( + hwmgr, false, + data->smu_features[GNLD_FAN_CONTROL]. + smu_feature_bitmap), + "Attempt to Enable FAN CONTROL feature Failed!", + return -1); + data->smu_features[GNLD_FAN_CONTROL].enabled = false; + } +#endif + return 0; +} + +int vega12_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr) +{ + struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); + + if (data->smu_features[GNLD_FAN_CONTROL].supported) + PP_ASSERT_WITH_CODE( + !vega12_enable_fan_control_feature(hwmgr), + "Attempt to Enable SMC FAN CONTROL Feature Failed!", + return -1); + + return 0; +} + + +int vega12_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr) +{ + struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); + + if (data->smu_features[GNLD_FAN_CONTROL].supported) + PP_ASSERT_WITH_CODE(!vega12_disable_fan_control_feature(hwmgr), + "Attempt to Disable SMC FAN CONTROL Feature Failed!", + return -1); + + return 0; +} + +/** +* Reset Fan Speed to default. +* @param hwmgr the address of the powerplay hardware manager. +* @exception Always succeeds. +*/ +int vega12_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr) +{ + return vega12_fan_ctrl_start_smc_fan_control(hwmgr); +} + +/** +* Reads the remote temperature from the SIslands thermal controller. +* +* @param hwmgr The address of the hardware manager. +*/ +int vega12_thermal_get_temperature(struct pp_hwmgr *hwmgr) +{ + struct amdgpu_device *adev = hwmgr->adev; + int temp = 0; + + temp = RREG32_SOC15(THM, 0, mmCG_MULT_THERMAL_STATUS); + + temp = (temp & CG_MULT_THERMAL_STATUS__CTF_TEMP_MASK) >> + CG_MULT_THERMAL_STATUS__CTF_TEMP__SHIFT; + + temp = temp & 0x1ff; + + temp *= PP_TEMPERATURE_UNITS_PER_CENTIGRADES; + return temp; +} + +/** +* Set the requested temperature range for high and low alert signals +* +* @param hwmgr The address of the hardware manager. +* @param range Temperature range to be programmed for +* high and low alert signals +* @exception PP_Result_BadInput if the input data is not valid. +*/ +static int vega12_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, + struct PP_TemperatureRange *range) +{ + struct phm_ppt_v3_information *pptable_information = + (struct phm_ppt_v3_information *)hwmgr->pptable; + struct amdgpu_device *adev = hwmgr->adev; + int low = VEGA12_THERMAL_MINIMUM_ALERT_TEMP; + int high = VEGA12_THERMAL_MAXIMUM_ALERT_TEMP; + uint32_t val; + + /* compare them in unit celsius degree */ + if (low < range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES) + low = range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES; + if (high > pptable_information->us_software_shutdown_temp) + high = pptable_information->us_software_shutdown_temp; + + if (low > high) + return -EINVAL; + + val = RREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL); + + val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, MAX_IH_CREDIT, 5); + val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, THERM_IH_HW_ENA, 1); + val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTH, high); + val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTL, low); + val = val & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK); + + WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL, val); + + return 0; +} + +/** +* Enable thermal alerts on the RV770 thermal controller. +* +* @param hwmgr The address of the hardware manager. +*/ +static int vega12_thermal_enable_alert(struct pp_hwmgr *hwmgr) +{ + struct amdgpu_device *adev = hwmgr->adev; + uint32_t val = 0; + + val |= (1 << THM_THERMAL_INT_ENA__THERM_INTH_CLR__SHIFT); + val |= (1 << THM_THERMAL_INT_ENA__THERM_INTL_CLR__SHIFT); + val |= (1 << THM_THERMAL_INT_ENA__THERM_TRIGGER_CLR__SHIFT); + + WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, val); + + return 0; +} + +/** +* Disable thermal alerts on the RV770 thermal controller. +* @param hwmgr The address of the hardware manager. +*/ +int vega12_thermal_disable_alert(struct pp_hwmgr *hwmgr) +{ + struct amdgpu_device *adev = hwmgr->adev; + + WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, 0); + + return 0; +} + +/** +* Uninitialize the thermal controller. +* Currently just disables alerts. +* @param hwmgr The address of the hardware manager. +*/ +int vega12_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr) +{ + int result = vega12_thermal_disable_alert(hwmgr); + + return result; +} + +/** +* Set up the fan table to control the fan using the SMC. +* @param hwmgr the address of the powerplay hardware manager. +* @param pInput the pointer to input data +* @param pOutput the pointer to output data +* @param pStorage the pointer to temporary storage +* @param Result the last failure code +* @return result from set temperature range routine +*/ +static int vega12_thermal_setup_fan_table(struct pp_hwmgr *hwmgr) +{ + int ret; + struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); + PPTable_t *table = &(data->smc_state_table.pp_table); + + ret = smum_send_msg_to_smc_with_parameter(hwmgr, + PPSMC_MSG_SetFanTemperatureTarget, + (uint32_t)table->FanTargetTemperature, + NULL); + + return ret; +} + +/** +* Start the fan control on the SMC. +* @param hwmgr the address of the powerplay hardware manager. +* @param pInput the pointer to input data +* @param pOutput the pointer to output data +* @param pStorage the pointer to temporary storage +* @param Result the last failure code +* @return result from set temperature range routine +*/ +static int vega12_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)) + vega12_fan_ctrl_start_smc_fan_control(hwmgr); + + return 0; +} + + +int vega12_start_thermal_controller(struct pp_hwmgr *hwmgr, + struct PP_TemperatureRange *range) +{ + int ret = 0; + + if (range == NULL) + return -EINVAL; + + ret = vega12_thermal_set_temperature_range(hwmgr, range); + if (ret) + return -EINVAL; + + vega12_thermal_enable_alert(hwmgr); + /* 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. + */ + ret = vega12_thermal_setup_fan_table(hwmgr); + if (ret) + return -EINVAL; + + vega12_thermal_start_smc_fan_control(hwmgr); + + return 0; +}; |