/*
* 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),
"Attempt to get current RPM from SMC Failed!",
return -1);
PP_ASSERT_WITH_CODE(!vega12_read_arg_from_smc(hwmgr,
current_rpm),
"Attempt to read current RPM from SMC Failed!",
return -1);
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 amdgpu_device *adev = hwmgr->adev;
int low = VEGA12_THERMAL_MINIMUM_ALERT_TEMP *
PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
int high = VEGA12_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 = 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 / PP_TEMPERATURE_UNITS_PER_CENTIGRADES));
val = 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 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
*/
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);
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
*/
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;
};
