int smu7_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
{
int result;
if (PP_CAP(PHM_PlatformCaps_ODFuzzyFanControlSupport)) {
cgs_write_register(hwmgr->device, mmSMC_MSG_ARG_0, FAN_CONTROL_FUZZY);
result = smum_send_msg_to_smc(hwmgr, PPSMC_StartFanControl);
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 {
cgs_write_register(hwmgr->device, mmSMC_MSG_ARG_0, FAN_CONTROL_TABLE);
result = smum_send_msg_to_smc(hwmgr, PPSMC_StartFanControl);
}
if (!result && hwmgr->thermal_controller.
advanceFanControlParameters.ucTargetTemperature)
result = smum_send_msg_to_smc_with_parameter(hwmgr,
PPSMC_MSG_SetFanTemperatureTarget,
hwmgr->thermal_controller.
advanceFanControlParameters.ucTargetTemperature);
hwmgr->fan_ctrl_enabled = true;
return result;
}
/**
* 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);
}
int vega10_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 0;
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;
}
/**
* 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 vega20_power_control_set_level(struct pp_hwmgr *hwmgr)
{
int adjust_percent, result = 0;
if (PP_CAP(PHM_PlatformCaps_PowerContainment)) {
adjust_percent =
hwmgr->platform_descriptor.TDPAdjustmentPolarity ?
hwmgr->platform_descriptor.TDPAdjustment :
(-1 * hwmgr->platform_descriptor.TDPAdjustment);
result = vega20_set_overdrive_target_percentage(hwmgr,
(uint32_t)adjust_percent);
}
return result;
}
/**
* 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 < 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 = smu7_get_xclk(hwmgr);
tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed);
PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
CG_TACH_STATUS, TACH_PERIOD, tach_period);
return smu7_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC_RPM);
}
