linux/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_thermal.c
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   1/*
   2 * Copyright 2015 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 */
  23#include <asm/div64.h>
  24#include "tonga_thermal.h"
  25#include "tonga_hwmgr.h"
  26#include "tonga_smumgr.h"
  27#include "tonga_ppsmc.h"
  28#include "smu/smu_7_1_2_d.h"
  29#include "smu/smu_7_1_2_sh_mask.h"
  30
  31/**
  32* Get Fan Speed Control Parameters.
  33* @param    hwmgr  the address of the powerplay hardware manager.
  34* @param    pSpeed is the address of the structure where the result is to be placed.
  35* @exception Always succeeds except if we cannot zero out the output structure.
  36*/
  37int tonga_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr, struct phm_fan_speed_info *fan_speed_info)
  38{
  39
  40        if (hwmgr->thermal_controller.fanInfo.bNoFan)
  41                return 0;
  42
  43        fan_speed_info->supports_percent_read = true;
  44        fan_speed_info->supports_percent_write = true;
  45        fan_speed_info->min_percent = 0;
  46        fan_speed_info->max_percent = 100;
  47
  48        if (0 != hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution) {
  49                fan_speed_info->supports_rpm_read = true;
  50                fan_speed_info->supports_rpm_write = true;
  51                fan_speed_info->min_rpm = hwmgr->thermal_controller.fanInfo.ulMinRPM;
  52                fan_speed_info->max_rpm = hwmgr->thermal_controller.fanInfo.ulMaxRPM;
  53        } else {
  54                fan_speed_info->min_rpm = 0;
  55                fan_speed_info->max_rpm = 0;
  56        }
  57
  58        return 0;
  59}
  60
  61/**
  62* Get Fan Speed in percent.
  63* @param    hwmgr  the address of the powerplay hardware manager.
  64* @param    pSpeed is the address of the structure where the result is to be placed.
  65* @exception Fails is the 100% setting appears to be 0.
  66*/
  67int tonga_fan_ctrl_get_fan_speed_percent(struct pp_hwmgr *hwmgr, uint32_t *speed)
  68{
  69        uint32_t duty100;
  70        uint32_t duty;
  71        uint64_t tmp64;
  72
  73        if (hwmgr->thermal_controller.fanInfo.bNoFan)
  74                return 0;
  75
  76        duty100 = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL1, FMAX_DUTY100);
  77        duty = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_STATUS, FDO_PWM_DUTY);
  78
  79        if (0 == duty100)
  80                return -EINVAL;
  81
  82
  83        tmp64 = (uint64_t)duty * 100;
  84        do_div(tmp64, duty100);
  85        *speed = (uint32_t)tmp64;
  86
  87        if (*speed > 100)
  88                *speed = 100;
  89
  90        return 0;
  91}
  92
  93/**
  94* Get Fan Speed in RPM.
  95* @param    hwmgr  the address of the powerplay hardware manager.
  96* @param    speed is the address of the structure where the result is to be placed.
  97* @exception Returns not supported if no fan is found or if pulses per revolution are not set
  98*/
  99int tonga_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed)
 100{
 101        return 0;
 102}
 103
 104/**
 105* Set Fan Speed Control to static mode, so that the user can decide what speed to use.
 106* @param    hwmgr  the address of the powerplay hardware manager.
 107*           mode    the fan control mode, 0 default, 1 by percent, 5, by RPM
 108* @exception Should always succeed.
 109*/
 110int tonga_fan_ctrl_set_static_mode(struct pp_hwmgr *hwmgr, uint32_t mode)
 111{
 112
 113        if (hwmgr->fan_ctrl_is_in_default_mode) {
 114                hwmgr->fan_ctrl_default_mode = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL2, FDO_PWM_MODE);
 115                hwmgr->tmin = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL2, TMIN);
 116                hwmgr->fan_ctrl_is_in_default_mode = false;
 117        }
 118
 119        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL2, TMIN, 0);
 120        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL2, FDO_PWM_MODE, mode);
 121
 122        return 0;
 123}
 124
 125/**
 126* Reset Fan Speed Control to default mode.
 127* @param    hwmgr  the address of the powerplay hardware manager.
 128* @exception Should always succeed.
 129*/
 130int tonga_fan_ctrl_set_default_mode(struct pp_hwmgr *hwmgr)
 131{
 132        if (!hwmgr->fan_ctrl_is_in_default_mode) {
 133                PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL2, FDO_PWM_MODE, hwmgr->fan_ctrl_default_mode);
 134                PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL2, TMIN, hwmgr->tmin);
 135                hwmgr->fan_ctrl_is_in_default_mode = true;
 136        }
 137
 138        return 0;
 139}
 140
 141int tonga_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
 142{
 143        int result;
 144
 145        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_ODFuzzyFanControlSupport)) {
 146                cgs_write_register(hwmgr->device, mmSMC_MSG_ARG_0, FAN_CONTROL_FUZZY);
 147                result = (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_StartFanControl) == 0) ?  0 : -EINVAL;
 148/*
 149                if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_FanSpeedInTableIsRPM))
 150                        hwmgr->set_max_fan_rpm_output(hwmgr, hwmgr->thermal_controller.advanceFanControlParameters.usMaxFanRPM);
 151                else
 152                        hwmgr->set_max_fan_pwm_output(hwmgr, hwmgr->thermal_controller.advanceFanControlParameters.usMaxFanPWM);
 153*/
 154        } else {
 155                cgs_write_register(hwmgr->device, mmSMC_MSG_ARG_0, FAN_CONTROL_TABLE);
 156                result = (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_StartFanControl) == 0) ?  0 : -EINVAL;
 157        }
 158/* TO DO FOR SOME DEVICE ID 0X692b, send this msg return invalid command.
 159        if (result == 0 && hwmgr->thermal_controller.advanceFanControlParameters.ucTargetTemperature != 0)
 160                result = (0 == smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, PPSMC_MSG_SetFanTemperatureTarget, \
 161                                                                hwmgr->thermal_controller.advanceFanControlParameters.ucTargetTemperature) ? 0 : -EINVAL);
 162*/
 163        return result;
 164}
 165
 166
 167int tonga_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr)
 168{
 169        return (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_StopFanControl) == 0) ?  0 : -EINVAL;
 170}
 171
 172/**
 173* Set Fan Speed in percent.
 174* @param    hwmgr  the address of the powerplay hardware manager.
 175* @param    speed is the percentage value (0% - 100%) to be set.
 176* @exception Fails is the 100% setting appears to be 0.
 177*/
 178int tonga_fan_ctrl_set_fan_speed_percent(struct pp_hwmgr *hwmgr, uint32_t speed)
 179{
 180        uint32_t duty100;
 181        uint32_t duty;
 182        uint64_t tmp64;
 183
 184        if (hwmgr->thermal_controller.fanInfo.bNoFan)
 185                return -EINVAL;
 186
 187        if (speed > 100)
 188                speed = 100;
 189
 190        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl))
 191                tonga_fan_ctrl_stop_smc_fan_control(hwmgr);
 192
 193        duty100 = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL1, FMAX_DUTY100);
 194
 195        if (0 == duty100)
 196                return -EINVAL;
 197
 198        tmp64 = (uint64_t)speed * duty100;
 199        do_div(tmp64, 100);
 200        duty = (uint32_t)tmp64;
 201
 202        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL0, FDO_STATIC_DUTY, duty);
 203
 204        return tonga_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC);
 205}
 206
 207/**
 208* Reset Fan Speed to default.
 209* @param    hwmgr  the address of the powerplay hardware manager.
 210* @exception Always succeeds.
 211*/
 212int tonga_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr)
 213{
 214        int result;
 215
 216        if (hwmgr->thermal_controller.fanInfo.bNoFan)
 217                return 0;
 218
 219        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl)) {
 220                result = tonga_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC);
 221                if (0 == result)
 222                        result = tonga_fan_ctrl_start_smc_fan_control(hwmgr);
 223        } else
 224                result = tonga_fan_ctrl_set_default_mode(hwmgr);
 225
 226        return result;
 227}
 228
 229/**
 230* Set Fan Speed in RPM.
 231* @param    hwmgr  the address of the powerplay hardware manager.
 232* @param    speed is the percentage value (min - max) to be set.
 233* @exception Fails is the speed not lie between min and max.
 234*/
 235int tonga_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed)
 236{
 237        return 0;
 238}
 239
 240/**
 241* Reads the remote temperature from the SIslands thermal controller.
 242*
 243* @param    hwmgr The address of the hardware manager.
 244*/
 245int tonga_thermal_get_temperature(struct pp_hwmgr *hwmgr)
 246{
 247        int temp;
 248
 249        temp = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_MULT_THERMAL_STATUS, CTF_TEMP);
 250
 251/* Bit 9 means the reading is lower than the lowest usable value. */
 252        if (0 != (0x200 & temp))
 253                temp = TONGA_THERMAL_MAXIMUM_TEMP_READING;
 254        else
 255                temp = (temp & 0x1ff);
 256
 257        temp = temp * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
 258
 259        return temp;
 260}
 261
 262/**
 263* Set the requested temperature range for high and low alert signals
 264*
 265* @param    hwmgr The address of the hardware manager.
 266* @param    range Temperature range to be programmed for high and low alert signals
 267* @exception PP_Result_BadInput if the input data is not valid.
 268*/
 269static int tonga_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, uint32_t low_temp, uint32_t high_temp)
 270{
 271        uint32_t low = TONGA_THERMAL_MINIMUM_ALERT_TEMP * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
 272        uint32_t high = TONGA_THERMAL_MAXIMUM_ALERT_TEMP * PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
 273
 274        if (low < low_temp)
 275                low = low_temp;
 276        if (high > high_temp)
 277                high = high_temp;
 278
 279        if (low > high)
 280                return -EINVAL;
 281
 282        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_INT, DIG_THERM_INTH, (high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES));
 283        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_INT, DIG_THERM_INTL, (low / PP_TEMPERATURE_UNITS_PER_CENTIGRADES));
 284        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_CTRL, DIG_THERM_DPM, (high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES));
 285
 286        return 0;
 287}
 288
 289/**
 290* Programs thermal controller one-time setting registers
 291*
 292* @param    hwmgr The address of the hardware manager.
 293*/
 294static int tonga_thermal_initialize(struct pp_hwmgr *hwmgr)
 295{
 296        if (0 != hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution)
 297                PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC,
 298                                                CG_TACH_CTRL, EDGE_PER_REV,
 299                                                hwmgr->thermal_controller.fanInfo.ucTachometerPulsesPerRevolution - 1);
 300
 301        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL2, TACH_PWM_RESP_RATE, 0x28);
 302
 303        return 0;
 304}
 305
 306/**
 307* Enable thermal alerts on the RV770 thermal controller.
 308*
 309* @param    hwmgr The address of the hardware manager.
 310*/
 311static int tonga_thermal_enable_alert(struct pp_hwmgr *hwmgr)
 312{
 313        uint32_t alert;
 314
 315        alert = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_INT, THERM_INT_MASK);
 316        alert &= ~(TONGA_THERMAL_HIGH_ALERT_MASK | TONGA_THERMAL_LOW_ALERT_MASK);
 317        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_INT, THERM_INT_MASK, alert);
 318
 319        /* send message to SMU to enable internal thermal interrupts */
 320        return (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_Thermal_Cntl_Enable) == 0) ? 0 : -1;
 321}
 322
 323/**
 324* Disable thermal alerts on the RV770 thermal controller.
 325* @param    hwmgr The address of the hardware manager.
 326*/
 327static int tonga_thermal_disable_alert(struct pp_hwmgr *hwmgr)
 328{
 329        uint32_t alert;
 330
 331        alert = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_INT, THERM_INT_MASK);
 332        alert |= (TONGA_THERMAL_HIGH_ALERT_MASK | TONGA_THERMAL_LOW_ALERT_MASK);
 333        PHM_WRITE_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_THERMAL_INT, THERM_INT_MASK, alert);
 334
 335        /* send message to SMU to disable internal thermal interrupts */
 336        return (smum_send_msg_to_smc(hwmgr->smumgr, PPSMC_MSG_Thermal_Cntl_Disable) == 0) ? 0 : -1;
 337}
 338
 339/**
 340* Uninitialize the thermal controller.
 341* Currently just disables alerts.
 342* @param    hwmgr The address of the hardware manager.
 343*/
 344int tonga_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
 345{
 346        int result = tonga_thermal_disable_alert(hwmgr);
 347
 348        if (hwmgr->thermal_controller.fanInfo.bNoFan)
 349                tonga_fan_ctrl_set_default_mode(hwmgr);
 350
 351        return result;
 352}
 353
 354/**
 355* Set up the fan table to control the fan using the SMC.
 356* @param    hwmgr  the address of the powerplay hardware manager.
 357* @param    pInput the pointer to input data
 358* @param    pOutput the pointer to output data
 359* @param    pStorage the pointer to temporary storage
 360* @param    Result the last failure code
 361* @return   result from set temperature range routine
 362*/
 363int tf_tonga_thermal_setup_fan_table(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
 364{
 365        struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend);
 366        SMU72_Discrete_FanTable fan_table = { FDO_MODE_HARDWARE };
 367        uint32_t duty100;
 368        uint32_t t_diff1, t_diff2, pwm_diff1, pwm_diff2;
 369        uint16_t fdo_min, slope1, slope2;
 370        uint32_t reference_clock;
 371        int res;
 372        uint64_t tmp64;
 373
 374        if (!phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl))
 375                return 0;
 376
 377        if (0 == data->fan_table_start) {
 378                phm_cap_unset(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl);
 379                return 0;
 380        }
 381
 382        duty100 = PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_FDO_CTRL1, FMAX_DUTY100);
 383
 384        if (0 == duty100) {
 385                phm_cap_unset(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl);
 386                return 0;
 387        }
 388
 389        tmp64 = hwmgr->thermal_controller.advanceFanControlParameters.usPWMMin * duty100;
 390        do_div(tmp64, 10000);
 391        fdo_min = (uint16_t)tmp64;
 392
 393        t_diff1 = hwmgr->thermal_controller.advanceFanControlParameters.usTMed - hwmgr->thermal_controller.advanceFanControlParameters.usTMin;
 394        t_diff2 = hwmgr->thermal_controller.advanceFanControlParameters.usTHigh - hwmgr->thermal_controller.advanceFanControlParameters.usTMed;
 395
 396        pwm_diff1 = hwmgr->thermal_controller.advanceFanControlParameters.usPWMMed - hwmgr->thermal_controller.advanceFanControlParameters.usPWMMin;
 397        pwm_diff2 = hwmgr->thermal_controller.advanceFanControlParameters.usPWMHigh - hwmgr->thermal_controller.advanceFanControlParameters.usPWMMed;
 398
 399        slope1 = (uint16_t)((50 + ((16 * duty100 * pwm_diff1) / t_diff1)) / 100);
 400        slope2 = (uint16_t)((50 + ((16 * duty100 * pwm_diff2) / t_diff2)) / 100);
 401
 402        fan_table.TempMin = cpu_to_be16((50 + hwmgr->thermal_controller.advanceFanControlParameters.usTMin) / 100);
 403        fan_table.TempMed = cpu_to_be16((50 + hwmgr->thermal_controller.advanceFanControlParameters.usTMed) / 100);
 404        fan_table.TempMax = cpu_to_be16((50 + hwmgr->thermal_controller.advanceFanControlParameters.usTMax) / 100);
 405
 406        fan_table.Slope1 = cpu_to_be16(slope1);
 407        fan_table.Slope2 = cpu_to_be16(slope2);
 408
 409        fan_table.FdoMin = cpu_to_be16(fdo_min);
 410
 411        fan_table.HystDown = cpu_to_be16(hwmgr->thermal_controller.advanceFanControlParameters.ucTHyst);
 412
 413        fan_table.HystUp = cpu_to_be16(1);
 414
 415        fan_table.HystSlope = cpu_to_be16(1);
 416
 417        fan_table.TempRespLim = cpu_to_be16(5);
 418
 419        reference_clock = tonga_get_xclk(hwmgr);
 420
 421        fan_table.RefreshPeriod = cpu_to_be32((hwmgr->thermal_controller.advanceFanControlParameters.ulCycleDelay * reference_clock) / 1600);
 422
 423        fan_table.FdoMax = cpu_to_be16((uint16_t)duty100);
 424
 425        fan_table.TempSrc = (uint8_t)PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, CGS_IND_REG__SMC, CG_MULT_THERMAL_CTRL, TEMP_SEL);
 426
 427        fan_table.FanControl_GL_Flag = 1;
 428
 429        res = tonga_copy_bytes_to_smc(hwmgr->smumgr, data->fan_table_start, (uint8_t *)&fan_table, (uint32_t)sizeof(fan_table), data->sram_end);
 430/* TO DO FOR SOME DEVICE ID 0X692b, send this msg return invalid command.
 431        if (res == 0 && hwmgr->thermal_controller.advanceFanControlParameters.ucMinimumPWMLimit != 0)
 432                res = (0 == smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, PPSMC_MSG_SetFanMinPwm, \
 433                                                hwmgr->thermal_controller.advanceFanControlParameters.ucMinimumPWMLimit) ? 0 : -1);
 434
 435        if (res == 0 && hwmgr->thermal_controller.advanceFanControlParameters.ulMinFanSCLKAcousticLimit != 0)
 436                res = (0 == smum_send_msg_to_smc_with_parameter(hwmgr->smumgr, PPSMC_MSG_SetFanSclkTarget, \
 437                                        hwmgr->thermal_controller.advanceFanControlParameters.ulMinFanSCLKAcousticLimit) ? 0 : -1);
 438
 439        if (0 != res)
 440                phm_cap_unset(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl);
 441*/
 442        return 0;
 443}
 444
 445/**
 446* Start the fan control on the SMC.
 447* @param    hwmgr  the address of the powerplay hardware manager.
 448* @param    pInput the pointer to input data
 449* @param    pOutput the pointer to output data
 450* @param    pStorage the pointer to temporary storage
 451* @param    Result the last failure code
 452* @return   result from set temperature range routine
 453*/
 454int tf_tonga_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
 455{
 456/* If the fantable setup has failed we could have disabled PHM_PlatformCaps_MicrocodeFanControl even after this function was included in the table.
 457 * Make sure that we still think controlling the fan is OK.
 458*/
 459        if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, PHM_PlatformCaps_MicrocodeFanControl)) {
 460                tonga_fan_ctrl_start_smc_fan_control(hwmgr);
 461                tonga_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC);
 462        }
 463
 464        return 0;
 465}
 466
 467/**
 468* Set temperature range for high and low alerts
 469* @param    hwmgr  the address of the powerplay hardware manager.
 470* @param    pInput the pointer to input data
 471* @param    pOutput the pointer to output data
 472* @param    pStorage the pointer to temporary storage
 473* @param    Result the last failure code
 474* @return   result from set temperature range routine
 475*/
 476int tf_tonga_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
 477{
 478        struct PP_TemperatureRange *range = (struct PP_TemperatureRange *)input;
 479
 480        if (range == NULL)
 481                return -EINVAL;
 482
 483        return tonga_thermal_set_temperature_range(hwmgr, range->min, range->max);
 484}
 485
 486/**
 487* Programs one-time setting registers
 488* @param    hwmgr  the address of the powerplay hardware manager.
 489* @param    pInput the pointer to input data
 490* @param    pOutput the pointer to output data
 491* @param    pStorage the pointer to temporary storage
 492* @param    Result the last failure code
 493* @return   result from initialize thermal controller routine
 494*/
 495int tf_tonga_thermal_initialize(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
 496{
 497    return tonga_thermal_initialize(hwmgr);
 498}
 499
 500/**
 501* Enable high and low alerts
 502* @param    hwmgr  the address of the powerplay hardware manager.
 503* @param    pInput the pointer to input data
 504* @param    pOutput the pointer to output data
 505* @param    pStorage the pointer to temporary storage
 506* @param    Result the last failure code
 507* @return   result from enable alert routine
 508*/
 509int tf_tonga_thermal_enable_alert(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
 510{
 511        return tonga_thermal_enable_alert(hwmgr);
 512}
 513
 514/**
 515* Disable high and low alerts
 516* @param    hwmgr  the address of the powerplay hardware manager.
 517* @param    pInput the pointer to input data
 518* @param    pOutput the pointer to output data
 519* @param    pStorage the pointer to temporary storage
 520* @param    Result the last failure code
 521* @return   result from disable alert routine
 522*/
 523static int tf_tonga_thermal_disable_alert(struct pp_hwmgr *hwmgr, void *input, void *output, void *storage, int result)
 524{
 525        return tonga_thermal_disable_alert(hwmgr);
 526}
 527
 528static const struct phm_master_table_item tonga_thermal_start_thermal_controller_master_list[] = {
 529        { NULL, tf_tonga_thermal_initialize },
 530        { NULL, tf_tonga_thermal_set_temperature_range },
 531        { NULL, tf_tonga_thermal_enable_alert },
 532/* We should restrict performance levels to low before we halt the SMC.
 533 * On the other hand we are still in boot state when we do this so it would be pointless.
 534 * If this assumption changes we have to revisit this table.
 535 */
 536        { NULL, tf_tonga_thermal_setup_fan_table},
 537        { NULL, tf_tonga_thermal_start_smc_fan_control},
 538        { NULL, NULL }
 539};
 540
 541static const struct phm_master_table_header tonga_thermal_start_thermal_controller_master = {
 542        0,
 543        PHM_MasterTableFlag_None,
 544        tonga_thermal_start_thermal_controller_master_list
 545};
 546
 547static const struct phm_master_table_item tonga_thermal_set_temperature_range_master_list[] = {
 548        { NULL, tf_tonga_thermal_disable_alert},
 549        { NULL, tf_tonga_thermal_set_temperature_range},
 550        { NULL, tf_tonga_thermal_enable_alert},
 551        { NULL, NULL }
 552};
 553
 554static const struct phm_master_table_header tonga_thermal_set_temperature_range_master = {
 555        0,
 556        PHM_MasterTableFlag_None,
 557        tonga_thermal_set_temperature_range_master_list
 558};
 559
 560int tonga_thermal_ctrl_uninitialize_thermal_controller(struct pp_hwmgr *hwmgr)
 561{
 562        if (!hwmgr->thermal_controller.fanInfo.bNoFan)
 563                tonga_fan_ctrl_set_default_mode(hwmgr);
 564        return 0;
 565}
 566
 567/**
 568* Initializes the thermal controller related functions in the Hardware Manager structure.
 569* @param    hwmgr The address of the hardware manager.
 570* @exception Any error code from the low-level communication.
 571*/
 572int pp_tonga_thermal_initialize(struct pp_hwmgr *hwmgr)
 573{
 574        int result;
 575
 576        result = phm_construct_table(hwmgr, &tonga_thermal_set_temperature_range_master, &(hwmgr->set_temperature_range));
 577
 578        if (0 == result) {
 579                result = phm_construct_table(hwmgr,
 580                                                &tonga_thermal_start_thermal_controller_master,
 581                                                &(hwmgr->start_thermal_controller));
 582                if (0 != result)
 583                        phm_destroy_table(hwmgr, &(hwmgr->set_temperature_range));
 584        }
 585
 586        if (0 == result)
 587                hwmgr->fan_ctrl_is_in_default_mode = true;
 588        return result;
 589}
 590
 591