| /* |
| * Copyright 2016 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 <asm/div64.h> |
| #include "smu7_thermal.h" |
| #include "smu7_hwmgr.h" |
| #include "smu7_common.h" |
| |
| int smu7_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr, |
| struct phm_fan_speed_info *fan_speed_info) |
| { |
| if (hwmgr->thermal_controller.fanInfo.bNoFan) |
| return -ENODEV; |
| |
| fan_speed_info->supports_percent_read = true; |
| fan_speed_info->supports_percent_write = true; |
| fan_speed_info->min_percent = 0; |
| fan_speed_info->max_percent = 100; |
| |
| if (PP_CAP(PHM_PlatformCaps_FanSpeedInTableIsRPM) && |
| hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution) { |
| fan_speed_info->supports_rpm_read = true; |
| fan_speed_info->supports_rpm_write = true; |
| fan_speed_info->min_rpm = hwmgr->thermal_controller.fanInfo.ulMinRPM; |
| fan_speed_info->max_rpm = hwmgr->thermal_controller.fanInfo.ulMaxRPM; |
| } else { |
| fan_speed_info->min_rpm = 0; |
| fan_speed_info->max_rpm = 0; |
| } |
| |
| return 0; |
| } |
| |
| int smu7_fan_ctrl_get_fan_speed_percent(struct pp_hwmgr *hwmgr, |
| uint32_t *speed) |
| { |
| uint32_t duty100; |
| uint32_t duty; |
| uint64_t tmp64; |
| |
| if (hwmgr->thermal_controller.fanInfo.bNoFan) |
| return -ENODEV; |
| |
| duty100 = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL1, FMAX_DUTY100); |
| duty = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_THERMAL_STATUS, FDO_PWM_DUTY); |
| |
| if (duty100 == 0) |
| return -EINVAL; |
| |
| |
| tmp64 = (uint64_t)duty * 100; |
| do_div(tmp64, duty100); |
| *speed = (uint32_t)tmp64; |
| |
| if (*speed > 100) |
| *speed = 100; |
| |
| return 0; |
| } |
| |
| int smu7_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed) |
| { |
| uint32_t tach_period; |
| uint32_t crystal_clock_freq; |
| |
| if (hwmgr->thermal_controller.fanInfo.bNoFan || |
| !hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution) |
| return -ENODEV; |
| |
| tach_period = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_TACH_STATUS, TACH_PERIOD); |
| |
| if (tach_period == 0) |
| return -EINVAL; |
| |
| crystal_clock_freq = amdgpu_asic_get_xclk((struct amdgpu_device *)hwmgr->adev); |
| |
| *speed = 60 * crystal_clock_freq * 10000 / tach_period; |
| |
| return 0; |
| } |
| |
| /** |
| * Set Fan Speed Control to static mode, so that the user can decide what speed to use. |
| * @param hwmgr the address of the powerplay hardware manager. |
| * mode the fan control mode, 0 default, 1 by percent, 5, by RPM |
| * @exception Should always succeed. |
| */ |
| int smu7_fan_ctrl_set_static_mode(struct pp_hwmgr *hwmgr, uint32_t mode) |
| { |
| if (hwmgr->fan_ctrl_is_in_default_mode) { |
| hwmgr->fan_ctrl_default_mode = |
| PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL2, FDO_PWM_MODE); |
| hwmgr->tmin = |
| PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL2, TMIN); |
| hwmgr->fan_ctrl_is_in_default_mode = false; |
| } |
| |
| PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL2, TMIN, 0); |
| PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL2, FDO_PWM_MODE, mode); |
| |
| return 0; |
| } |
| |
| /** |
| * Reset Fan Speed Control to default mode. |
| * @param hwmgr the address of the powerplay hardware manager. |
| * @exception Should always succeed. |
| */ |
| int smu7_fan_ctrl_set_default_mode(struct pp_hwmgr *hwmgr) |
| { |
| if (!hwmgr->fan_ctrl_is_in_default_mode) { |
| PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL2, FDO_PWM_MODE, hwmgr->fan_ctrl_default_mode); |
| PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL2, TMIN, hwmgr->tmin); |
| hwmgr->fan_ctrl_is_in_default_mode = true; |
| } |
| |
| return 0; |
| } |
| |
| int smu7_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr) |
| { |
| int result; |
| |
| if (PP_CAP(PHM_PlatformCaps_ODFuzzyFanControlSupport)) { |
| result = smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_StartFanControl, |
| FAN_CONTROL_FUZZY, NULL); |
| |
| if (PP_CAP(PHM_PlatformCaps_FanSpeedInTableIsRPM)) |
| hwmgr->hwmgr_func->set_max_fan_rpm_output(hwmgr, |
| hwmgr->thermal_controller. |
| advanceFanControlParameters.usMaxFanRPM); |
| else |
| hwmgr->hwmgr_func->set_max_fan_pwm_output(hwmgr, |
| hwmgr->thermal_controller. |
| advanceFanControlParameters.usMaxFanPWM); |
| |
| } else { |
| result = smum_send_msg_to_smc_with_parameter(hwmgr, PPSMC_StartFanControl, |
| FAN_CONTROL_TABLE, NULL); |
| } |
| |
| if (!result && hwmgr->thermal_controller. |
| advanceFanControlParameters.ucTargetTemperature) |
| result = smum_send_msg_to_smc_with_parameter(hwmgr, |
| PPSMC_MSG_SetFanTemperatureTarget, |
| hwmgr->thermal_controller. |
| advanceFanControlParameters.ucTargetTemperature, |
| NULL); |
| hwmgr->fan_ctrl_enabled = true; |
| |
| return result; |
| } |
| |
| |
| int smu7_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr) |
| { |
| hwmgr->fan_ctrl_enabled = false; |
| return smum_send_msg_to_smc(hwmgr, PPSMC_StopFanControl, NULL); |
| } |
| |
| /** |
| * Set Fan Speed in percent. |
| * @param hwmgr the address of the powerplay hardware manager. |
| * @param speed is the percentage value (0% - 100%) to be set. |
| * @exception Fails is the 100% setting appears to be 0. |
| */ |
| int smu7_fan_ctrl_set_fan_speed_percent(struct pp_hwmgr *hwmgr, |
| uint32_t speed) |
| { |
| uint32_t duty100; |
| uint32_t duty; |
| uint64_t tmp64; |
| |
| if (hwmgr->thermal_controller.fanInfo.bNoFan) |
| return 0; |
| |
| if (speed > 100) |
| speed = 100; |
| |
| if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) |
| smu7_fan_ctrl_stop_smc_fan_control(hwmgr); |
| |
| duty100 = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL1, FMAX_DUTY100); |
| |
| if (duty100 == 0) |
| return -EINVAL; |
| |
| tmp64 = (uint64_t)speed * duty100; |
| do_div(tmp64, 100); |
| duty = (uint32_t)tmp64; |
| |
| PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_FDO_CTRL0, FDO_STATIC_DUTY, duty); |
| |
| return smu7_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC); |
| } |
| |
| /** |
| * Reset Fan Speed to default. |
| * @param hwmgr the address of the powerplay hardware manager. |
| * @exception Always succeeds. |
| */ |
| int smu7_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr) |
| { |
| int result; |
| |
| if (hwmgr->thermal_controller.fanInfo.bNoFan) |
| return 0; |
| |
| if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) { |
| result = smu7_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC); |
| if (!result) |
| result = smu7_fan_ctrl_start_smc_fan_control(hwmgr); |
| } else |
| result = smu7_fan_ctrl_set_default_mode(hwmgr); |
| |
| return result; |
| } |
| |
| /** |
| * Set Fan Speed in RPM. |
| * @param hwmgr the address of the powerplay hardware manager. |
| * @param speed is the percentage value (min - max) to be set. |
| * @exception Fails is the speed not lie between min and max. |
| */ |
| int smu7_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed) |
| { |
| uint32_t tach_period; |
| uint32_t crystal_clock_freq; |
| |
| if (hwmgr->thermal_controller.fanInfo.bNoFan || |
| (hwmgr->thermal_controller.fanInfo. |
| ucTachometerPulsesPerRevolution == 0) || |
| speed == 0 || |
| (speed < hwmgr->thermal_controller.fanInfo.ulMinRPM) || |
| (speed > hwmgr->thermal_controller.fanInfo.ulMaxRPM)) |
| return 0; |
| |
| if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) |
| smu7_fan_ctrl_stop_smc_fan_control(hwmgr); |
| |
| crystal_clock_freq = amdgpu_asic_get_xclk((struct amdgpu_device *)hwmgr->adev); |
| |
| tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed); |
| |
| PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_TACH_CTRL, TARGET_PERIOD, tach_period); |
| |
| return smu7_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 smu7_thermal_get_temperature(struct pp_hwmgr *hwmgr) |
| { |
| int temp; |
| |
| temp = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_MULT_THERMAL_STATUS, CTF_TEMP); |
| |
| /* Bit 9 means the reading is lower than the lowest usable value. */ |
| if (temp & 0x200) |
| temp = SMU7_THERMAL_MAXIMUM_TEMP_READING; |
| else |
| 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 smu7_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, |
| int low_temp, int high_temp) |
| { |
| int low = SMU7_THERMAL_MINIMUM_ALERT_TEMP * |
| PP_TEMPERATURE_UNITS_PER_CENTIGRADES; |
| int high = SMU7_THERMAL_MAXIMUM_ALERT_TEMP * |
| PP_TEMPERATURE_UNITS_PER_CENTIGRADES; |
| |
| if (low < low_temp) |
| low = low_temp; |
| if (high > high_temp) |
| high = high_temp; |
| |
| if (low > high) |
| return -EINVAL; |
| |
| PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, |
| CG_THERMAL_INT, DIG_THERM_INTH, |
| (high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)); |
| 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; |
| } |
| |
| /** |
| * Programs thermal controller one-time setting registers |
| * |
| * @param 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; |
| } |
| |
| /** |
| * Enable thermal alerts on the RV770 thermal controller. |
| * |
| * @param 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); |
| } |
| |
| /** |
| * Disable thermal alerts on the RV770 thermal controller. |
| * @param 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); |
| } |
| |
| /** |
| * Uninitialize the thermal controller. |
| * Currently just disables alerts. |
| * @param 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; |
| } |
| |
| /** |
| * 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 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; |
| } |
| |