1 /* 2 * Copyright 2017 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 "vega12_thermal.h" 25 #include "vega12_hwmgr.h" 26 #include "vega12_smumgr.h" 27 #include "vega12_ppsmc.h" 28 #include "vega12_inc.h" 29 #include "soc15_common.h" 30 #include "pp_debug.h" 31 32 static int vega12_get_current_rpm(struct pp_hwmgr *hwmgr, uint32_t *current_rpm) 33 { 34 PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr, 35 PPSMC_MSG_GetCurrentRpm), 36 "Attempt to get current RPM from SMC Failed!", 37 return -EINVAL); 38 *current_rpm = smum_get_argument(hwmgr); 39 40 return 0; 41 } 42 43 int vega12_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr, 44 struct phm_fan_speed_info *fan_speed_info) 45 { 46 memset(fan_speed_info, 0, sizeof(*fan_speed_info)); 47 fan_speed_info->supports_percent_read = false; 48 fan_speed_info->supports_percent_write = false; 49 fan_speed_info->supports_rpm_read = true; 50 fan_speed_info->supports_rpm_write = true; 51 52 return 0; 53 } 54 55 int vega12_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed) 56 { 57 *speed = 0; 58 59 return vega12_get_current_rpm(hwmgr, speed); 60 } 61 62 /** 63 * @fn vega12_enable_fan_control_feature 64 * @brief Enables the SMC Fan Control Feature. 65 * 66 * @param hwmgr - the address of the powerplay hardware manager. 67 * @return 0 on success. -1 otherwise. 68 */ 69 static int vega12_enable_fan_control_feature(struct pp_hwmgr *hwmgr) 70 { 71 #if 0 72 struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); 73 74 if (data->smu_features[GNLD_FAN_CONTROL].supported) { 75 PP_ASSERT_WITH_CODE(!vega12_enable_smc_features( 76 hwmgr, true, 77 data->smu_features[GNLD_FAN_CONTROL]. 78 smu_feature_bitmap), 79 "Attempt to Enable FAN CONTROL feature Failed!", 80 return -1); 81 data->smu_features[GNLD_FAN_CONTROL].enabled = true; 82 } 83 #endif 84 return 0; 85 } 86 87 static int vega12_disable_fan_control_feature(struct pp_hwmgr *hwmgr) 88 { 89 #if 0 90 struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); 91 92 if (data->smu_features[GNLD_FAN_CONTROL].supported) { 93 PP_ASSERT_WITH_CODE(!vega12_enable_smc_features( 94 hwmgr, false, 95 data->smu_features[GNLD_FAN_CONTROL]. 96 smu_feature_bitmap), 97 "Attempt to Enable FAN CONTROL feature Failed!", 98 return -1); 99 data->smu_features[GNLD_FAN_CONTROL].enabled = false; 100 } 101 #endif 102 return 0; 103 } 104 105 int vega12_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr) 106 { 107 struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); 108 109 if (data->smu_features[GNLD_FAN_CONTROL].supported) 110 PP_ASSERT_WITH_CODE( 111 !vega12_enable_fan_control_feature(hwmgr), 112 "Attempt to Enable SMC FAN CONTROL Feature Failed!", 113 return -1); 114 115 return 0; 116 } 117 118 119 int vega12_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr) 120 { 121 struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); 122 123 if (data->smu_features[GNLD_FAN_CONTROL].supported) 124 PP_ASSERT_WITH_CODE(!vega12_disable_fan_control_feature(hwmgr), 125 "Attempt to Disable SMC FAN CONTROL Feature Failed!", 126 return -1); 127 128 return 0; 129 } 130 131 /** 132 * Reset Fan Speed to default. 133 * @param hwmgr the address of the powerplay hardware manager. 134 * @exception Always succeeds. 135 */ 136 int vega12_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr) 137 { 138 return vega12_fan_ctrl_start_smc_fan_control(hwmgr); 139 } 140 141 /** 142 * Reads the remote temperature from the SIslands thermal controller. 143 * 144 * @param hwmgr The address of the hardware manager. 145 */ 146 int vega12_thermal_get_temperature(struct pp_hwmgr *hwmgr) 147 { 148 struct amdgpu_device *adev = hwmgr->adev; 149 int temp = 0; 150 151 temp = RREG32_SOC15(THM, 0, mmCG_MULT_THERMAL_STATUS); 152 153 temp = (temp & CG_MULT_THERMAL_STATUS__CTF_TEMP_MASK) >> 154 CG_MULT_THERMAL_STATUS__CTF_TEMP__SHIFT; 155 156 temp = temp & 0x1ff; 157 158 temp *= PP_TEMPERATURE_UNITS_PER_CENTIGRADES; 159 return temp; 160 } 161 162 /** 163 * Set the requested temperature range for high and low alert signals 164 * 165 * @param hwmgr The address of the hardware manager. 166 * @param range Temperature range to be programmed for 167 * high and low alert signals 168 * @exception PP_Result_BadInput if the input data is not valid. 169 */ 170 static int vega12_thermal_set_temperature_range(struct pp_hwmgr *hwmgr, 171 struct PP_TemperatureRange *range) 172 { 173 struct phm_ppt_v3_information *pptable_information = 174 (struct phm_ppt_v3_information *)hwmgr->pptable; 175 struct amdgpu_device *adev = hwmgr->adev; 176 int low = VEGA12_THERMAL_MINIMUM_ALERT_TEMP * 177 PP_TEMPERATURE_UNITS_PER_CENTIGRADES; 178 int high = VEGA12_THERMAL_MAXIMUM_ALERT_TEMP * 179 PP_TEMPERATURE_UNITS_PER_CENTIGRADES; 180 uint32_t val; 181 182 if (low < range->min) 183 low = range->min; 184 if (high > pptable_information->us_software_shutdown_temp) 185 high = pptable_information->us_software_shutdown_temp; 186 187 if (low > high) 188 return -EINVAL; 189 190 val = RREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL); 191 192 val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, MAX_IH_CREDIT, 5); 193 val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, THERM_IH_HW_ENA, 1); 194 val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTH, (high / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)); 195 val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTL, (low / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)); 196 val = val & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK); 197 198 WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL, val); 199 200 return 0; 201 } 202 203 /** 204 * Enable thermal alerts on the RV770 thermal controller. 205 * 206 * @param hwmgr The address of the hardware manager. 207 */ 208 static int vega12_thermal_enable_alert(struct pp_hwmgr *hwmgr) 209 { 210 struct amdgpu_device *adev = hwmgr->adev; 211 uint32_t val = 0; 212 213 val |= (1 << THM_THERMAL_INT_ENA__THERM_INTH_CLR__SHIFT); 214 val |= (1 << THM_THERMAL_INT_ENA__THERM_INTL_CLR__SHIFT); 215 val |= (1 << THM_THERMAL_INT_ENA__THERM_TRIGGER_CLR__SHIFT); 216 217 WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, val); 218 219 return 0; 220 } 221 222 /** 223 * Disable thermal alerts on the RV770 thermal controller. 224 * @param hwmgr The address of the hardware manager. 225 */ 226 int vega12_thermal_disable_alert(struct pp_hwmgr *hwmgr) 227 { 228 struct amdgpu_device *adev = hwmgr->adev; 229 230 WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, 0); 231 232 return 0; 233 } 234 235 /** 236 * Uninitialize the thermal controller. 237 * Currently just disables alerts. 238 * @param hwmgr The address of the hardware manager. 239 */ 240 int vega12_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr) 241 { 242 int result = vega12_thermal_disable_alert(hwmgr); 243 244 return result; 245 } 246 247 /** 248 * Set up the fan table to control the fan using the SMC. 249 * @param hwmgr the address of the powerplay hardware manager. 250 * @param pInput the pointer to input data 251 * @param pOutput the pointer to output data 252 * @param pStorage the pointer to temporary storage 253 * @param Result the last failure code 254 * @return result from set temperature range routine 255 */ 256 int vega12_thermal_setup_fan_table(struct pp_hwmgr *hwmgr); 257 int vega12_thermal_setup_fan_table(struct pp_hwmgr *hwmgr) 258 { 259 int ret; 260 struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend); 261 PPTable_t *table = &(data->smc_state_table.pp_table); 262 263 ret = smum_send_msg_to_smc_with_parameter(hwmgr, 264 PPSMC_MSG_SetFanTemperatureTarget, 265 (uint32_t)table->FanTargetTemperature); 266 267 return ret; 268 } 269 270 /** 271 * Start the fan control on the SMC. 272 * @param hwmgr the address of the powerplay hardware manager. 273 * @param pInput the pointer to input data 274 * @param pOutput the pointer to output data 275 * @param pStorage the pointer to temporary storage 276 * @param Result the last failure code 277 * @return result from set temperature range routine 278 */ 279 int vega12_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr); 280 int vega12_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr) 281 { 282 /* If the fantable setup has failed we could have disabled 283 * PHM_PlatformCaps_MicrocodeFanControl even after 284 * this function was included in the table. 285 * Make sure that we still think controlling the fan is OK. 286 */ 287 if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl)) 288 vega12_fan_ctrl_start_smc_fan_control(hwmgr); 289 290 return 0; 291 } 292 293 294 int vega12_start_thermal_controller(struct pp_hwmgr *hwmgr, 295 struct PP_TemperatureRange *range) 296 { 297 int ret = 0; 298 299 if (range == NULL) 300 return -EINVAL; 301 302 ret = vega12_thermal_set_temperature_range(hwmgr, range); 303 if (ret) 304 return -EINVAL; 305 306 vega12_thermal_enable_alert(hwmgr); 307 /* We should restrict performance levels to low before we halt the SMC. 308 * On the other hand we are still in boot state when we do this 309 * so it would be pointless. 310 * If this assumption changes we have to revisit this table. 311 */ 312 ret = vega12_thermal_setup_fan_table(hwmgr); 313 if (ret) 314 return -EINVAL; 315 316 vega12_thermal_start_smc_fan_control(hwmgr); 317 318 return 0; 319 }; 320