diff options
Diffstat (limited to 'drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c new file mode 100644 index 000000000000..7add2f60f49c --- /dev/null +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_thermal.c @@ -0,0 +1,357 @@ +/* + * Copyright 2018 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 "vega20_thermal.h" +#include "vega20_hwmgr.h" +#include "vega20_smumgr.h" +#include "vega20_ppsmc.h" +#include "vega20_inc.h" +#include "soc15_common.h" +#include "pp_debug.h" + +static int vega20_disable_fan_control_feature(struct pp_hwmgr *hwmgr) +{ + struct vega20_hwmgr *data = hwmgr->backend; + int ret = 0; + + if (data->smu_features[GNLD_FAN_CONTROL].supported) { + ret = vega20_enable_smc_features( + hwmgr, false, + data->smu_features[GNLD_FAN_CONTROL]. + smu_feature_bitmap); + PP_ASSERT_WITH_CODE(!ret, + "Disable FAN CONTROL feature Failed!", + return ret); + data->smu_features[GNLD_FAN_CONTROL].enabled = false; + } + + return ret; +} + +int vega20_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr) +{ + struct vega20_hwmgr *data = hwmgr->backend; + + if (data->smu_features[GNLD_FAN_CONTROL].supported) + return vega20_disable_fan_control_feature(hwmgr); + + return 0; +} + +static int vega20_enable_fan_control_feature(struct pp_hwmgr *hwmgr) +{ + struct vega20_hwmgr *data = hwmgr->backend; + int ret = 0; + + if (data->smu_features[GNLD_FAN_CONTROL].supported) { + ret = vega20_enable_smc_features( + hwmgr, true, + data->smu_features[GNLD_FAN_CONTROL]. + smu_feature_bitmap); + PP_ASSERT_WITH_CODE(!ret, + "Enable FAN CONTROL feature Failed!", + return ret); + data->smu_features[GNLD_FAN_CONTROL].enabled = true; + } + + return ret; +} + +int vega20_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr) +{ + struct vega20_hwmgr *data = hwmgr->backend; + + if (data->smu_features[GNLD_FAN_CONTROL].supported) + return vega20_enable_fan_control_feature(hwmgr); + + return 0; +} + +static int vega20_fan_ctrl_set_static_mode(struct pp_hwmgr *hwmgr, uint32_t mode) +{ + struct amdgpu_device *adev = hwmgr->adev; + + WREG32_SOC15(THM, 0, mmCG_FDO_CTRL2, + REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL2), + CG_FDO_CTRL2, TMIN, 0)); + WREG32_SOC15(THM, 0, mmCG_FDO_CTRL2, + REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL2), + CG_FDO_CTRL2, FDO_PWM_MODE, mode)); + + return 0; +} + +static int vega20_get_current_rpm(struct pp_hwmgr *hwmgr, uint32_t *current_rpm) +{ + int ret = 0; + + PP_ASSERT_WITH_CODE((ret = smum_send_msg_to_smc(hwmgr, + PPSMC_MSG_GetCurrentRpm, + current_rpm)) == 0, + "Attempt to get current RPM from SMC Failed!", + return ret); + + return 0; +} + +int vega20_fan_ctrl_get_fan_speed_percent(struct pp_hwmgr *hwmgr, + uint32_t *speed) +{ + struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend); + PPTable_t *pp_table = &(data->smc_state_table.pp_table); + uint32_t current_rpm, percent = 0; + int ret = 0; + + ret = vega20_get_current_rpm(hwmgr, ¤t_rpm); + if (ret) + return ret; + + percent = current_rpm * 100 / pp_table->FanMaximumRpm; + + *speed = percent > 100 ? 100 : percent; + + return 0; +} + +int vega20_fan_ctrl_set_fan_speed_percent(struct pp_hwmgr *hwmgr, + uint32_t speed) +{ + struct amdgpu_device *adev = hwmgr->adev; + uint32_t duty100; + uint32_t duty; + uint64_t tmp64; + + if (speed > 100) + speed = 100; + + if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) + vega20_fan_ctrl_stop_smc_fan_control(hwmgr); + + duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1), + CG_FDO_CTRL1, FMAX_DUTY100); + + if (duty100 == 0) + return -EINVAL; + + tmp64 = (uint64_t)speed * duty100; + do_div(tmp64, 100); + duty = (uint32_t)tmp64; + + WREG32_SOC15(THM, 0, mmCG_FDO_CTRL0, + REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL0), + CG_FDO_CTRL0, FDO_STATIC_DUTY, duty)); + + return vega20_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC); +} + +int vega20_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 = true; + fan_speed_info->supports_percent_write = true; + fan_speed_info->supports_rpm_read = true; + fan_speed_info->supports_rpm_write = true; + + return 0; +} + +int vega20_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed) +{ + *speed = 0; + + return vega20_get_current_rpm(hwmgr, speed); +} + +int vega20_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed) +{ + struct amdgpu_device *adev = hwmgr->adev; + uint32_t tach_period, crystal_clock_freq; + int result = 0; + + if (!speed) + return -EINVAL; + + if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) { + result = vega20_fan_ctrl_stop_smc_fan_control(hwmgr); + if (result) + return result; + } + + crystal_clock_freq = amdgpu_asic_get_xclk((struct amdgpu_device *)hwmgr->adev); + tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed); + WREG32_SOC15(THM, 0, mmCG_TACH_CTRL, + REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL), + CG_TACH_CTRL, TARGET_PERIOD, + tach_period)); + + return vega20_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC_RPM); +} + +/** +* Reads the remote temperature from the SIslands thermal controller. +* +* @param hwmgr The address of the hardware manager. +*/ +int vega20_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 vega20_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, + struct PP_TemperatureRange *range) +{ + struct amdgpu_device *adev = hwmgr->adev; + int low = VEGA20_THERMAL_MINIMUM_ALERT_TEMP * + PP_TEMPERATURE_UNITS_PER_CENTIGRADES; + int high = VEGA20_THERMAL_MAXIMUM_ALERT_TEMP * + PP_TEMPERATURE_UNITS_PER_CENTIGRADES; + uint32_t val; + + if (low < range->min) + low = range->min; + if (high > range->max) + high = range->max; + + if (low > high) + return -EINVAL; + + val = RREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL); + + val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, MAX_IH_CREDIT, 5); + val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, THERM_IH_HW_ENA, 1); + val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTH, (high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)); + val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTL, (low / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)); + 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 vega20_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 vega20_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 vega20_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr) +{ + int result = vega20_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 vega20_thermal_setup_fan_table(struct pp_hwmgr *hwmgr) +{ + int ret; + struct vega20_hwmgr *data = (struct vega20_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; +} + +int vega20_start_thermal_controller(struct pp_hwmgr *hwmgr, + struct PP_TemperatureRange *range) +{ + int ret = 0; + + if (range == NULL) + return -EINVAL; + + ret = vega20_thermal_set_temperature_range(hwmgr, range); + if (ret) + return ret; + + ret = vega20_thermal_enable_alert(hwmgr); + if (ret) + return ret; + + ret = vega20_thermal_setup_fan_table(hwmgr); + + return ret; +}; |