Line data Source code
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 0 : static int vega12_get_current_rpm(struct pp_hwmgr *hwmgr, uint32_t *current_rpm)
33 : {
34 0 : PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr,
35 : PPSMC_MSG_GetCurrentRpm,
36 : current_rpm),
37 : "Attempt to get current RPM from SMC Failed!",
38 : return -EINVAL);
39 :
40 : return 0;
41 : }
42 :
43 0 : int vega12_fan_ctrl_get_fan_speed_info(struct pp_hwmgr *hwmgr,
44 : struct phm_fan_speed_info *fan_speed_info)
45 : {
46 0 : memset(fan_speed_info, 0, sizeof(*fan_speed_info));
47 0 : fan_speed_info->supports_percent_read = false;
48 0 : fan_speed_info->supports_percent_write = false;
49 0 : fan_speed_info->supports_rpm_read = true;
50 0 : fan_speed_info->supports_rpm_write = true;
51 :
52 0 : return 0;
53 : }
54 :
55 0 : int vega12_fan_ctrl_get_fan_speed_rpm(struct pp_hwmgr *hwmgr, uint32_t *speed)
56 : {
57 0 : *speed = 0;
58 :
59 0 : return vega12_get_current_rpm(hwmgr, speed);
60 : }
61 :
62 : /**
63 : * vega12_enable_fan_control_feature -Enables the SMC Fan Control Feature.
64 : *
65 : * @hwmgr: the address of the powerplay hardware manager.
66 : * Return: 0 on success. -1 otherwise.
67 : */
68 : static int vega12_enable_fan_control_feature(struct pp_hwmgr *hwmgr)
69 : {
70 : #if 0
71 : struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
72 :
73 : if (data->smu_features[GNLD_FAN_CONTROL].supported) {
74 : PP_ASSERT_WITH_CODE(!vega12_enable_smc_features(
75 : hwmgr, true,
76 : data->smu_features[GNLD_FAN_CONTROL].
77 : smu_feature_bitmap),
78 : "Attempt to Enable FAN CONTROL feature Failed!",
79 : return -1);
80 : data->smu_features[GNLD_FAN_CONTROL].enabled = true;
81 : }
82 : #endif
83 : return 0;
84 : }
85 :
86 : static int vega12_disable_fan_control_feature(struct pp_hwmgr *hwmgr)
87 : {
88 : #if 0
89 : struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
90 :
91 : if (data->smu_features[GNLD_FAN_CONTROL].supported) {
92 : PP_ASSERT_WITH_CODE(!vega12_enable_smc_features(
93 : hwmgr, false,
94 : data->smu_features[GNLD_FAN_CONTROL].
95 : smu_feature_bitmap),
96 : "Attempt to Enable FAN CONTROL feature Failed!",
97 : return -1);
98 : data->smu_features[GNLD_FAN_CONTROL].enabled = false;
99 : }
100 : #endif
101 : return 0;
102 : }
103 :
104 0 : int vega12_fan_ctrl_start_smc_fan_control(struct pp_hwmgr *hwmgr)
105 : {
106 0 : struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
107 :
108 : if (data->smu_features[GNLD_FAN_CONTROL].supported)
109 : PP_ASSERT_WITH_CODE(
110 : !vega12_enable_fan_control_feature(hwmgr),
111 : "Attempt to Enable SMC FAN CONTROL Feature Failed!",
112 : return -1);
113 :
114 : return 0;
115 : }
116 :
117 :
118 0 : int vega12_fan_ctrl_stop_smc_fan_control(struct pp_hwmgr *hwmgr)
119 : {
120 0 : struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
121 :
122 : if (data->smu_features[GNLD_FAN_CONTROL].supported)
123 : PP_ASSERT_WITH_CODE(!vega12_disable_fan_control_feature(hwmgr),
124 : "Attempt to Disable SMC FAN CONTROL Feature Failed!",
125 : return -1);
126 :
127 : return 0;
128 : }
129 :
130 : /**
131 : * vega12_fan_ctrl_reset_fan_speed_to_default - Reset Fan Speed to default.
132 : * @hwmgr: the address of the powerplay hardware manager.
133 : * Exception Always succeeds.
134 : */
135 0 : int vega12_fan_ctrl_reset_fan_speed_to_default(struct pp_hwmgr *hwmgr)
136 : {
137 0 : return vega12_fan_ctrl_start_smc_fan_control(hwmgr);
138 : }
139 :
140 : /**
141 : * vega12_thermal_get_temperature - Reads the remote temperature from the SIslands thermal controller.
142 : *
143 : * @hwmgr: The address of the hardware manager.
144 : */
145 0 : int vega12_thermal_get_temperature(struct pp_hwmgr *hwmgr)
146 : {
147 0 : struct amdgpu_device *adev = hwmgr->adev;
148 0 : int temp = 0;
149 :
150 0 : temp = RREG32_SOC15(THM, 0, mmCG_MULT_THERMAL_STATUS);
151 :
152 0 : temp = (temp & CG_MULT_THERMAL_STATUS__CTF_TEMP_MASK) >>
153 : CG_MULT_THERMAL_STATUS__CTF_TEMP__SHIFT;
154 :
155 0 : temp = temp & 0x1ff;
156 :
157 0 : temp *= PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
158 0 : return temp;
159 : }
160 :
161 : /**
162 : * vega12_thermal_set_temperature_range - Set the requested temperature range
163 : * for high and low alert signals
164 : *
165 : * @hwmgr: The address of the hardware manager.
166 : * @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 0 : static int vega12_thermal_set_temperature_range(struct pp_hwmgr *hwmgr,
171 : struct PP_TemperatureRange *range)
172 : {
173 0 : struct phm_ppt_v3_information *pptable_information =
174 : (struct phm_ppt_v3_information *)hwmgr->pptable;
175 0 : struct amdgpu_device *adev = hwmgr->adev;
176 0 : int low = VEGA12_THERMAL_MINIMUM_ALERT_TEMP;
177 0 : int high = VEGA12_THERMAL_MAXIMUM_ALERT_TEMP;
178 : uint32_t val;
179 :
180 : /* compare them in unit celsius degree */
181 0 : if (low < range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES)
182 0 : low = range->min / PP_TEMPERATURE_UNITS_PER_CENTIGRADES;
183 0 : if (high > pptable_information->us_software_shutdown_temp)
184 0 : high = pptable_information->us_software_shutdown_temp;
185 :
186 0 : if (low > high)
187 : return -EINVAL;
188 :
189 0 : val = RREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL);
190 :
191 0 : val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, MAX_IH_CREDIT, 5);
192 0 : val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, THERM_IH_HW_ENA, 1);
193 0 : val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTH, high);
194 0 : val = REG_SET_FIELD(val, THM_THERMAL_INT_CTRL, DIG_THERM_INTL, low);
195 0 : val = val & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK);
196 :
197 0 : WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_CTRL, val);
198 :
199 : return 0;
200 : }
201 :
202 : /**
203 : * vega12_thermal_enable_alert - Enable thermal alerts on the RV770 thermal controller.
204 : *
205 : * @hwmgr: The address of the hardware manager.
206 : */
207 0 : static int vega12_thermal_enable_alert(struct pp_hwmgr *hwmgr)
208 : {
209 0 : struct amdgpu_device *adev = hwmgr->adev;
210 0 : uint32_t val = 0;
211 :
212 0 : val |= (1 << THM_THERMAL_INT_ENA__THERM_INTH_CLR__SHIFT);
213 0 : val |= (1 << THM_THERMAL_INT_ENA__THERM_INTL_CLR__SHIFT);
214 0 : val |= (1 << THM_THERMAL_INT_ENA__THERM_TRIGGER_CLR__SHIFT);
215 :
216 0 : WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, val);
217 :
218 0 : return 0;
219 : }
220 :
221 : /**
222 : * vega12_thermal_disable_alert - Disable thermal alerts on the RV770 thermal controller.
223 : * @hwmgr: The address of the hardware manager.
224 : */
225 0 : int vega12_thermal_disable_alert(struct pp_hwmgr *hwmgr)
226 : {
227 0 : struct amdgpu_device *adev = hwmgr->adev;
228 :
229 0 : WREG32_SOC15(THM, 0, mmTHM_THERMAL_INT_ENA, 0);
230 :
231 0 : return 0;
232 : }
233 :
234 : /**
235 : * vega12_thermal_stop_thermal_controller - Uninitialize the thermal controller.
236 : * Currently just disables alerts.
237 : * @hwmgr: The address of the hardware manager.
238 : */
239 0 : int vega12_thermal_stop_thermal_controller(struct pp_hwmgr *hwmgr)
240 : {
241 0 : int result = vega12_thermal_disable_alert(hwmgr);
242 :
243 0 : return result;
244 : }
245 :
246 : /**
247 : * vega12_thermal_setup_fan_table - Set up the fan table to control the fan using the SMC.
248 : * @hwmgr: the address of the powerplay hardware manager.
249 : */
250 : static int vega12_thermal_setup_fan_table(struct pp_hwmgr *hwmgr)
251 : {
252 : int ret;
253 0 : struct vega12_hwmgr *data = (struct vega12_hwmgr *)(hwmgr->backend);
254 0 : PPTable_t *table = &(data->smc_state_table.pp_table);
255 :
256 0 : ret = smum_send_msg_to_smc_with_parameter(hwmgr,
257 : PPSMC_MSG_SetFanTemperatureTarget,
258 0 : (uint32_t)table->FanTargetTemperature,
259 : NULL);
260 :
261 : return ret;
262 : }
263 :
264 : /**
265 : * vega12_thermal_start_smc_fan_control - Start the fan control on the SMC.
266 : * @hwmgr: the address of the powerplay hardware manager.
267 : * Return: result from set temperature range routine
268 : */
269 : static int vega12_thermal_start_smc_fan_control(struct pp_hwmgr *hwmgr)
270 : {
271 : /* If the fantable setup has failed we could have disabled
272 : * PHM_PlatformCaps_MicrocodeFanControl even after
273 : * this function was included in the table.
274 : * Make sure that we still think controlling the fan is OK.
275 : */
276 0 : if (PP_CAP(PHM_PlatformCaps_MicrocodeFanControl))
277 : vega12_fan_ctrl_start_smc_fan_control(hwmgr);
278 :
279 : return 0;
280 : }
281 :
282 :
283 0 : int vega12_start_thermal_controller(struct pp_hwmgr *hwmgr,
284 : struct PP_TemperatureRange *range)
285 : {
286 0 : int ret = 0;
287 :
288 0 : if (range == NULL)
289 : return -EINVAL;
290 :
291 0 : ret = vega12_thermal_set_temperature_range(hwmgr, range);
292 0 : if (ret)
293 : return -EINVAL;
294 :
295 0 : vega12_thermal_enable_alert(hwmgr);
296 : /* We should restrict performance levels to low before we halt the SMC.
297 : * On the other hand we are still in boot state when we do this
298 : * so it would be pointless.
299 : * If this assumption changes we have to revisit this table.
300 : */
301 0 : ret = vega12_thermal_setup_fan_table(hwmgr);
302 0 : if (ret)
303 : return -EINVAL;
304 :
305 0 : vega12_thermal_start_smc_fan_control(hwmgr);
306 :
307 0 : return 0;
308 : };
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