1 /* 2 * Copyright 2018 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 24 #include "vega20_thermal.h" 25 #include "vega20_hwmgr.h" 26 #include "vega20_smumgr.h" 27 #include "vega20_ppsmc.h" 28 #include "vega20_inc.h" 29 #include "soc15_common.h" 30 #include "pp_debug.h" 31 32 static int vega20_disable_fan_control_feature(struct pp_hwmgr *hwmgr) 33 { 34 struct vega20_hwmgr *data = hwmgr->backend; 35 int ret = 0; 36 37 if (data->smu_features[GNLD_FAN_CONTROL].supported) { 38 ret = vega20_enable_smc_features( 39 hwmgr, false, 40 data->smu_features[GNLD_FAN_CONTROL]. 41 smu_feature_bitmap); 42 PP_ASSERT_WITH_CODE(!ret, 43 "Disable FAN CONTROL feature Failed!", 44 return ret); 45 data->smu_features[GNLD_FAN_CONTROL].enabled = false; 46 } 47 48 return ret; 49 } 50 51 int vega20_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr) 52 { 53 struct vega20_hwmgr *data = hwmgr->backend; 54 55 if (data->smu_features[GNLD_FAN_CONTROL].supported) 56 return vega20_disable_fan_control_feature(hwmgr); 57 58 return 0; 59 } 60 61 static int vega20_enable_fan_control_feature(struct pp_hwmgr *hwmgr) 62 { 63 struct vega20_hwmgr *data = hwmgr->backend; 64 int ret = 0; 65 66 if (data->smu_features[GNLD_FAN_CONTROL].supported) { 67 ret = vega20_enable_smc_features( 68 hwmgr, true, 69 data->smu_features[GNLD_FAN_CONTROL]. 70 smu_feature_bitmap); 71 PP_ASSERT_WITH_CODE(!ret, 72 "Enable FAN CONTROL feature Failed!", 73 return ret); 74 data->smu_features[GNLD_FAN_CONTROL].enabled = true; 75 } 76 77 return ret; 78 } 79 80 int vega20_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr) 81 { 82 struct vega20_hwmgr *data = hwmgr->backend; 83 84 if (data->smu_features[GNLD_FAN_CONTROL].supported) 85 return vega20_enable_fan_control_feature(hwmgr); 86 87 return 0; 88 } 89 90 static int vega20_fan_ctrl_set_static_mode(struct pp_hwmgr *hwmgr, uint32_t mode) 91 { 92 struct amdgpu_device *adev = hwmgr->adev; 93 94 WREG32_SOC15(THM, 0, mmCG_FDO_CTRL2, 95 REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL2), 96 CG_FDO_CTRL2, TMIN, 0)); 97 WREG32_SOC15(THM, 0, mmCG_FDO_CTRL2, 98 REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL2), 99 CG_FDO_CTRL2, FDO_PWM_MODE, mode)); 100 101 return 0; 102 } 103 104 static int vega20_get_current_rpm(struct pp_hwmgr *hwmgr, uint32_t *current_rpm) 105 { 106 int ret = 0; 107 108 PP_ASSERT_WITH_CODE((ret = smum_send_msg_to_smc(hwmgr, 109 PPSMC_MSG_GetCurrentRpm, 110 current_rpm)) == 0, 111 "Attempt to get current RPM from SMC Failed!", 112 return ret); 113 114 return 0; 115 } 116 117 int vega20_fan_ctrl_get_fan_speed_pwm(struct pp_hwmgr *hwmgr, 118 uint32_t *speed) 119 { 120 struct amdgpu_device *adev = hwmgr->adev; 121 uint32_t duty100, duty; 122 uint64_t tmp64; 123 124 duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1), 125 CG_FDO_CTRL1, FMAX_DUTY100); 126 duty = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_THERMAL_STATUS), 127 CG_THERMAL_STATUS, FDO_PWM_DUTY); 128 129 if (!duty100) 130 return -EINVAL; 131 132 tmp64 = (uint64_t)duty * 255; 133 do_div(tmp64, duty100); 134 *speed = min_t(uint32_t, tmp64, 255); 135 136 return 0; 137 } 138 139 int vega20_fan_ctrl_set_fan_speed_pwm(struct pp_hwmgr *hwmgr, 140 uint32_t speed) 141 { 142 struct amdgpu_device *adev = hwmgr->adev; 143 uint32_t duty100; 144 uint32_t duty; 145 uint64_t tmp64; 146 147 speed = min_t(uint32_t, speed, 255); 148 149 if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) 150 vega20_fan_ctrl_stop_smc_fan_control(hwmgr); 151 152 duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1), 153 CG_FDO_CTRL1, FMAX_DUTY100); 154 155 if (duty100 == 0) 156 return -EINVAL; 157 158 tmp64 = (uint64_t)speed * duty100; 159 do_div(tmp64, 255); 160 duty = (uint32_t)tmp64; 161 162 WREG32_SOC15(THM, 0, mmCG_FDO_CTRL0, 163 REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL0), 164 CG_FDO_CTRL0, FDO_STATIC_DUTY, duty)); 165 166 return vega20_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC); 167 } 168 169 int vega20_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr, 170 struct phm_fan_speed_info *fan_speed_info) 171 { 172 memset(fan_speed_info, 0, sizeof(*fan_speed_info)); 173 fan_speed_info->supports_percent_read = true; 174 fan_speed_info->supports_percent_write = true; 175 fan_speed_info->supports_rpm_read = true; 176 fan_speed_info->supports_rpm_write = true; 177 178 return 0; 179 } 180 181 int vega20_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed) 182 { 183 *speed = 0; 184 185 return vega20_get_current_rpm(hwmgr, speed); 186 } 187 188 int vega20_fan_ctrl_set_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t speed) 189 { 190 struct amdgpu_device *adev = hwmgr->adev; 191 uint32_t tach_period, crystal_clock_freq; 192 int result = 0; 193 194 if (!speed) 195 return -EINVAL; 196 197 if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) { 198 result = vega20_fan_ctrl_stop_smc_fan_control(hwmgr); 199 if (result) 200 return result; 201 } 202 203 crystal_clock_freq = amdgpu_asic_get_xclk((struct amdgpu_device *)hwmgr->adev); 204 tach_period = 60 * crystal_clock_freq * 10000 / (8 * speed); 205 WREG32_SOC15(THM, 0, mmCG_TACH_CTRL, 206 REG_SET_FIELD(RREG32_SOC15(THM, 0, mmCG_TACH_CTRL), 207 CG_TACH_CTRL, TARGET_PERIOD, 208 tach_period)); 209 210 return vega20_fan_ctrl_set_static_mode(hwmgr, FDO_PWM_MODE_STATIC_RPM); 211 } 212 213 /** 214 * vega20_thermal_get_temperature - Reads the remote temperature from the SIslands thermal controller. 215 * 216 * @hwmgr: The address of the hardware manager. 217 */ 218 int vega20_thermal_get_temperature(struct pp_hwmgr *hwmgr) 219 { 220 struct amdgpu_device *adev = hwmgr->adev; 221 int temp = 0; 222 223 temp = RREG32_SOC15(THM, 0, mmCG_MULT_THERMAL_STATUS); 224 225 temp = (temp & CG_MULT_THERMAL_STATUS__CTF_TEMP_MASK) >> 226 CG_MULT_THERMAL_STATUS__CTF_TEMP__SHIFT; 227 228 temp = temp & 0x1ff; 229 230 temp *= PP_TEMPERATURE_UNITS_PER_CENTIGRADES; 231 return temp; 232 } 233 234 /** 235 * vega20_thermal_set_temperature_range - Set the requested temperature range for high and low alert signals 236 * 237 * @hwmgr: The address of the hardware manager. 238 * @range: Temperature range to be programmed for high and low alert signals 239 * Exception: PP_Result_BadInput if the input data is not valid. 240 */ 241 static int vega20_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, 242 struct PP_TemperatureRange *range) 243 { 244 struct phm_ppt_v3_information *pptable_information = 245 (struct phm_ppt_v3_information *)hwmgr->pptable; 246 struct amdgpu_device *adev = hwmgr->adev; 247 int low = VEGA20_THERMAL_MINIMUM_ALERT_TEMP; 248 int high = VEGA20_THERMAL_MAXIMUM_ALERT_TEMP; 249 uint32_t val; 250 251 /* compare them in unit celsius degree */ 252 if (low < range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES) 253 low = range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES; 254 if (high > pptable_information->us_software_shutdown_temp) 255 high = pptable_information->us_software_shutdown_temp; 256 257 if (low > high) 258 return -EINVAL; 259 260 val = RREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL); 261 262 val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, MAX_IH_CREDIT, 5); 263 val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, THERM_IH_HW_ENA, 1); 264 val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTH, high); 265 val = CGS_REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTL, low); 266 val &= ~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK; 267 val &= ~THM_THERMAL_INT_CTRL__THERM_INTH_MASK_MASK; 268 val &= ~THM_THERMAL_INT_CTRL__THERM_INTL_MASK_MASK; 269 270 WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL, val); 271 272 return 0; 273 } 274 275 /** 276 * vega20_thermal_enable_alert - Enable thermal alerts on the RV770 thermal controller. 277 * 278 * @hwmgr: The address of the hardware manager. 279 */ 280 static int vega20_thermal_enable_alert(struct pp_hwmgr *hwmgr) 281 { 282 struct amdgpu_device *adev = hwmgr->adev; 283 uint32_t val = 0; 284 285 val |= (1 << THM_THERMAL_INT_ENA__THERM_INTH_CLR__SHIFT); 286 val |= (1 << THM_THERMAL_INT_ENA__THERM_INTL_CLR__SHIFT); 287 val |= (1 << THM_THERMAL_INT_ENA__THERM_TRIGGER_CLR__SHIFT); 288 289 WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, val); 290 291 return 0; 292 } 293 294 /** 295 * vega20_thermal_disable_alert - Disable thermal alerts on the RV770 thermal controller. 296 * @hwmgr: The address of the hardware manager. 297 */ 298 int vega20_thermal_disable_alert(struct pp_hwmgr *hwmgr) 299 { 300 struct amdgpu_device *adev = hwmgr->adev; 301 302 WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, 0); 303 304 return 0; 305 } 306 307 /** 308 * vega20_thermal_stop_thermal_controller - Uninitialize the thermal controller. 309 * Currently just disables alerts. 310 * @hwmgr: The address of the hardware manager. 311 */ 312 int vega20_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr) 313 { 314 int result = vega20_thermal_disable_alert(hwmgr); 315 316 return result; 317 } 318 319 /** 320 * vega20_thermal_setup_fan_table - Set up the fan table to control the fan using the SMC. 321 * @hwmgr: the address of the powerplay hardware manager. 322 */ 323 static int vega20_thermal_setup_fan_table(struct pp_hwmgr *hwmgr) 324 { 325 int ret; 326 struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend); 327 PPTable_t *table = &(data->smc_state_table.pp_table); 328 329 ret = smum_send_msg_to_smc_with_parameter(hwmgr, 330 PPSMC_MSG_SetFanTemperatureTarget, 331 (uint32_t)table->FanTargetTemperature, 332 NULL); 333 334 return ret; 335 } 336 337 int vega20_start_thermal_controller(struct pp_hwmgr *hwmgr, 338 struct PP_TemperatureRange *range) 339 { 340 int ret = 0; 341 342 if (range == NULL) 343 return -EINVAL; 344 345 ret = vega20_thermal_set_temperature_range(hwmgr, range); 346 if (ret) 347 return ret; 348 349 ret = vega20_thermal_enable_alert(hwmgr); 350 if (ret) 351 return ret; 352 353 ret = vega20_thermal_setup_fan_table(hwmgr); 354 355 return ret; 356 }; 357