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legacy_dpm.c
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linux-6.19.14/drivers/gpu/drm/amd/pm/legacy-dpm/legacy_dpm.c
1/* 2 * Copyright 2021 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 "amdgpu.h" 24#include "amdgpu_i2c.h" 25#include "amdgpu_atombios.h" 26#include "atom.h" 27#include "amd_pcie.h" 28#include "legacy_dpm.h" 29#include "amdgpu_dpm_internal.h" 30#include "amdgpu_display.h" 31 32#define amdgpu_dpm_pre_set_power_state(adev) \ 33 ((adev)->powerplay.pp_funcs->pre_set_power_state((adev)->powerplay.pp_handle)) 34 35#define amdgpu_dpm_post_set_power_state(adev) \ 36 ((adev)->powerplay.pp_funcs->post_set_power_state((adev)->powerplay.pp_handle)) 37 38#define amdgpu_dpm_display_configuration_changed(adev) \ 39 ((adev)->powerplay.pp_funcs->display_configuration_changed((adev)->powerplay.pp_handle)) 40 41#define amdgpu_dpm_print_power_state(adev, ps) \ 42 ((adev)->powerplay.pp_funcs->print_power_state((adev)->powerplay.pp_handle, (ps))) 43 44#define amdgpu_dpm_vblank_too_short(adev) \ 45 ((adev)->powerplay.pp_funcs->vblank_too_short((adev)->powerplay.pp_handle)) 46 47#define amdgpu_dpm_check_state_equal(adev, cps, rps, equal) \ 48 ((adev)->powerplay.pp_funcs->check_state_equal((adev)->powerplay.pp_handle, (cps), (rps), (equal))) 49 50void amdgpu_dpm_dbg_print_class_info(struct amdgpu_device *adev, u32 class, u32 class2) 51{ 52 const char *s; 53 54 switch (class & ATOM_PPLIB_CLASSIFICATION_UI_MASK) { 55 case ATOM_PPLIB_CLASSIFICATION_UI_NONE: 56 default: 57 s = "none"; 58 break; 59 case ATOM_PPLIB_CLASSIFICATION_UI_BATTERY: 60 s = "battery"; 61 break; 62 case ATOM_PPLIB_CLASSIFICATION_UI_BALANCED: 63 s = "balanced"; 64 break; 65 case ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE: 66 s = "performance"; 67 break; 68 } 69 drm_dbg(adev_to_drm(adev), "\tui class: %s\n", s); 70 if (((class & ~ATOM_PPLIB_CLASSIFICATION_UI_MASK) == 0) && 71 (class2 == 0)) 72 drm_dbg(adev_to_drm(adev), "\tinternal class: none\n"); 73 else 74 drm_dbg(adev_to_drm(adev), "\tinternal class: %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", 75 (class & ATOM_PPLIB_CLASSIFICATION_BOOT) ? " boot" : "", 76 (class & ATOM_PPLIB_CLASSIFICATION_THERMAL) ? " thermal" : "", 77 (class & ATOM_PPLIB_CLASSIFICATION_LIMITEDPOWERSOURCE) ? " limited_pwr" : "", 78 (class & ATOM_PPLIB_CLASSIFICATION_REST) ? " rest" : "", 79 (class & ATOM_PPLIB_CLASSIFICATION_FORCED) ? " forced" : "", 80 (class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE) ? " 3d_perf" : "", 81 (class & ATOM_PPLIB_CLASSIFICATION_OVERDRIVETEMPLATE) ? " ovrdrv" : "", 82 (class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE) ? " uvd" : "", 83 (class & ATOM_PPLIB_CLASSIFICATION_3DLOW) ? " 3d_low" : "", 84 (class & ATOM_PPLIB_CLASSIFICATION_ACPI) ? " acpi" : "", 85 (class & ATOM_PPLIB_CLASSIFICATION_HD2STATE) ? " uvd_hd2" : "", 86 (class & ATOM_PPLIB_CLASSIFICATION_HDSTATE) ? " uvd_hd" : "", 87 (class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) ? " uvd_sd" : "", 88 (class2 & ATOM_PPLIB_CLASSIFICATION2_LIMITEDPOWERSOURCE_2) ? " limited_pwr2" : "", 89 (class2 & ATOM_PPLIB_CLASSIFICATION2_ULV) ? " ulv" : "", 90 (class2 & ATOM_PPLIB_CLASSIFICATION2_MVC) ? " uvd_mvc" : ""); 91} 92 93void amdgpu_dpm_dbg_print_cap_info(struct amdgpu_device *adev, u32 caps) 94{ 95 drm_dbg(adev_to_drm(adev), "\tcaps: %s%s%s\n", 96 (caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) ? " single_disp" : "", 97 (caps & ATOM_PPLIB_SUPPORTS_VIDEO_PLAYBACK) ? " video" : "", 98 (caps & ATOM_PPLIB_DISALLOW_ON_DC) ? " no_dc" : ""); 99} 100 101void amdgpu_dpm_dbg_print_ps_status(struct amdgpu_device *adev, 102 struct amdgpu_ps *rps) 103{ 104 drm_dbg(adev_to_drm(adev), "\tstatus:%s%s%s\n", 105 rps == adev->pm.dpm.current_ps ? " c" : "", 106 rps == adev->pm.dpm.requested_ps ? " r" : "", 107 rps == adev->pm.dpm.boot_ps ? " b" : ""); 108} 109 110void amdgpu_pm_print_power_states(struct amdgpu_device *adev) 111{ 112 int i; 113 114 if (adev->powerplay.pp_funcs->print_power_state == NULL) 115 return; 116 117 for (i = 0; i < adev->pm.dpm.num_ps; i++) 118 amdgpu_dpm_print_power_state(adev, &adev->pm.dpm.ps[i]); 119 120} 121 122union power_info { 123 struct _ATOM_POWERPLAY_INFO info; 124 struct _ATOM_POWERPLAY_INFO_V2 info_2; 125 struct _ATOM_POWERPLAY_INFO_V3 info_3; 126 struct _ATOM_PPLIB_POWERPLAYTABLE pplib; 127 struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2; 128 struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3; 129 struct _ATOM_PPLIB_POWERPLAYTABLE4 pplib4; 130 struct _ATOM_PPLIB_POWERPLAYTABLE5 pplib5; 131}; 132 133int amdgpu_get_platform_caps(struct amdgpu_device *adev) 134{ 135 struct amdgpu_mode_info *mode_info = &adev->mode_info; 136 union power_info *power_info; 137 int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo); 138 u16 data_offset; 139 u8 frev, crev; 140 141 if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, 142 &frev, &crev, &data_offset)) 143 return -EINVAL; 144 power_info = (union power_info *)(mode_info->atom_context->bios + data_offset); 145 146 adev->pm.dpm.platform_caps = le32_to_cpu(power_info->pplib.ulPlatformCaps); 147 adev->pm.dpm.backbias_response_time = le16_to_cpu(power_info->pplib.usBackbiasTime); 148 adev->pm.dpm.voltage_response_time = le16_to_cpu(power_info->pplib.usVoltageTime); 149 150 return 0; 151} 152 153union fan_info { 154 struct _ATOM_PPLIB_FANTABLE fan; 155 struct _ATOM_PPLIB_FANTABLE2 fan2; 156 struct _ATOM_PPLIB_FANTABLE3 fan3; 157}; 158 159static int amdgpu_parse_clk_voltage_dep_table(struct amdgpu_clock_voltage_dependency_table *amdgpu_table, 160 ATOM_PPLIB_Clock_Voltage_Dependency_Table *atom_table) 161{ 162 u32 size = atom_table->ucNumEntries * 163 sizeof(struct amdgpu_clock_voltage_dependency_entry); 164 int i; 165 ATOM_PPLIB_Clock_Voltage_Dependency_Record *entry; 166 167 amdgpu_table->entries = kzalloc(size, GFP_KERNEL); 168 if (!amdgpu_table->entries) 169 return -ENOMEM; 170 171 entry = &atom_table->entries[0]; 172 for (i = 0; i < atom_table->ucNumEntries; i++) { 173 amdgpu_table->entries[i].clk = le16_to_cpu(entry->usClockLow) | 174 (entry->ucClockHigh << 16); 175 amdgpu_table->entries[i].v = le16_to_cpu(entry->usVoltage); 176 entry = (ATOM_PPLIB_Clock_Voltage_Dependency_Record *) 177 ((u8 *)entry + sizeof(ATOM_PPLIB_Clock_Voltage_Dependency_Record)); 178 } 179 amdgpu_table->count = atom_table->ucNumEntries; 180 181 return 0; 182} 183 184/* sizeof(ATOM_PPLIB_EXTENDEDHEADER) */ 185#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2 12 186#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3 14 187#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4 16 188#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5 18 189#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6 20 190#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7 22 191#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V8 24 192#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V9 26 193 194int amdgpu_parse_extended_power_table(struct amdgpu_device *adev) 195{ 196 struct amdgpu_mode_info *mode_info = &adev->mode_info; 197 union power_info *power_info; 198 union fan_info *fan_info; 199 ATOM_PPLIB_Clock_Voltage_Dependency_Table *dep_table; 200 int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo); 201 u16 data_offset; 202 u8 frev, crev; 203 int ret, i; 204 205 if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, 206 &frev, &crev, &data_offset)) 207 return -EINVAL; 208 power_info = (union power_info *)(mode_info->atom_context->bios + data_offset); 209 210 /* fan table */ 211 if (le16_to_cpu(power_info->pplib.usTableSize) >= 212 sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) { 213 if (power_info->pplib3.usFanTableOffset) { 214 fan_info = (union fan_info *)(mode_info->atom_context->bios + data_offset + 215 le16_to_cpu(power_info->pplib3.usFanTableOffset)); 216 adev->pm.dpm.fan.t_hyst = fan_info->fan.ucTHyst; 217 adev->pm.dpm.fan.t_min = le16_to_cpu(fan_info->fan.usTMin); 218 adev->pm.dpm.fan.t_med = le16_to_cpu(fan_info->fan.usTMed); 219 adev->pm.dpm.fan.t_high = le16_to_cpu(fan_info->fan.usTHigh); 220 adev->pm.dpm.fan.pwm_min = le16_to_cpu(fan_info->fan.usPWMMin); 221 adev->pm.dpm.fan.pwm_med = le16_to_cpu(fan_info->fan.usPWMMed); 222 adev->pm.dpm.fan.pwm_high = le16_to_cpu(fan_info->fan.usPWMHigh); 223 if (fan_info->fan.ucFanTableFormat >= 2) 224 adev->pm.dpm.fan.t_max = le16_to_cpu(fan_info->fan2.usTMax); 225 else 226 adev->pm.dpm.fan.t_max = 10900; 227 adev->pm.dpm.fan.cycle_delay = 100000; 228 if (fan_info->fan.ucFanTableFormat >= 3) { 229 adev->pm.dpm.fan.control_mode = fan_info->fan3.ucFanControlMode; 230 adev->pm.dpm.fan.default_max_fan_pwm = 231 le16_to_cpu(fan_info->fan3.usFanPWMMax); 232 adev->pm.dpm.fan.default_fan_output_sensitivity = 4836; 233 adev->pm.dpm.fan.fan_output_sensitivity = 234 le16_to_cpu(fan_info->fan3.usFanOutputSensitivity); 235 } 236 adev->pm.dpm.fan.ucode_fan_control = true; 237 } 238 } 239 240 /* clock dependancy tables, shedding tables */ 241 if (le16_to_cpu(power_info->pplib.usTableSize) >= 242 sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE4)) { 243 if (power_info->pplib4.usVddcDependencyOnSCLKOffset) { 244 dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) 245 (mode_info->atom_context->bios + data_offset + 246 le16_to_cpu(power_info->pplib4.usVddcDependencyOnSCLKOffset)); 247 ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddc_dependency_on_sclk, 248 dep_table); 249 if (ret) 250 return ret; 251 } 252 if (power_info->pplib4.usVddciDependencyOnMCLKOffset) { 253 dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) 254 (mode_info->atom_context->bios + data_offset + 255 le16_to_cpu(power_info->pplib4.usVddciDependencyOnMCLKOffset)); 256 ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddci_dependency_on_mclk, 257 dep_table); 258 if (ret) 259 return ret; 260 } 261 if (power_info->pplib4.usVddcDependencyOnMCLKOffset) { 262 dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) 263 (mode_info->atom_context->bios + data_offset + 264 le16_to_cpu(power_info->pplib4.usVddcDependencyOnMCLKOffset)); 265 ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddc_dependency_on_mclk, 266 dep_table); 267 if (ret) 268 return ret; 269 } 270 if (power_info->pplib4.usMvddDependencyOnMCLKOffset) { 271 dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) 272 (mode_info->atom_context->bios + data_offset + 273 le16_to_cpu(power_info->pplib4.usMvddDependencyOnMCLKOffset)); 274 ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.mvdd_dependency_on_mclk, 275 dep_table); 276 if (ret) 277 return ret; 278 } 279 if (power_info->pplib4.usMaxClockVoltageOnDCOffset) { 280 ATOM_PPLIB_Clock_Voltage_Limit_Table *clk_v = 281 (ATOM_PPLIB_Clock_Voltage_Limit_Table *) 282 (mode_info->atom_context->bios + data_offset + 283 le16_to_cpu(power_info->pplib4.usMaxClockVoltageOnDCOffset)); 284 if (clk_v->ucNumEntries) { 285 adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.sclk = 286 le16_to_cpu(clk_v->entries[0].usSclkLow) | 287 (clk_v->entries[0].ucSclkHigh << 16); 288 adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.mclk = 289 le16_to_cpu(clk_v->entries[0].usMclkLow) | 290 (clk_v->entries[0].ucMclkHigh << 16); 291 adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddc = 292 le16_to_cpu(clk_v->entries[0].usVddc); 293 adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddci = 294 le16_to_cpu(clk_v->entries[0].usVddci); 295 } 296 } 297 if (power_info->pplib4.usVddcPhaseShedLimitsTableOffset) { 298 ATOM_PPLIB_PhaseSheddingLimits_Table *psl = 299 (ATOM_PPLIB_PhaseSheddingLimits_Table *) 300 (mode_info->atom_context->bios + data_offset + 301 le16_to_cpu(power_info->pplib4.usVddcPhaseShedLimitsTableOffset)); 302 ATOM_PPLIB_PhaseSheddingLimits_Record *entry; 303 304 adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries = 305 kcalloc(psl->ucNumEntries, 306 sizeof(struct amdgpu_phase_shedding_limits_entry), 307 GFP_KERNEL); 308 if (!adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries) 309 return -ENOMEM; 310 311 entry = &psl->entries[0]; 312 for (i = 0; i < psl->ucNumEntries; i++) { 313 adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].sclk = 314 le16_to_cpu(entry->usSclkLow) | (entry->ucSclkHigh << 16); 315 adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].mclk = 316 le16_to_cpu(entry->usMclkLow) | (entry->ucMclkHigh << 16); 317 adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].voltage = 318 le16_to_cpu(entry->usVoltage); 319 entry = (ATOM_PPLIB_PhaseSheddingLimits_Record *) 320 ((u8 *)entry + sizeof(ATOM_PPLIB_PhaseSheddingLimits_Record)); 321 } 322 adev->pm.dpm.dyn_state.phase_shedding_limits_table.count = 323 psl->ucNumEntries; 324 } 325 } 326 327 /* cac data */ 328 if (le16_to_cpu(power_info->pplib.usTableSize) >= 329 sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE5)) { 330 adev->pm.dpm.tdp_limit = le32_to_cpu(power_info->pplib5.ulTDPLimit); 331 adev->pm.dpm.near_tdp_limit = le32_to_cpu(power_info->pplib5.ulNearTDPLimit); 332 adev->pm.dpm.near_tdp_limit_adjusted = adev->pm.dpm.near_tdp_limit; 333 adev->pm.dpm.tdp_od_limit = le16_to_cpu(power_info->pplib5.usTDPODLimit); 334 if (adev->pm.dpm.tdp_od_limit) 335 adev->pm.dpm.power_control = true; 336 else 337 adev->pm.dpm.power_control = false; 338 adev->pm.dpm.tdp_adjustment = 0; 339 adev->pm.dpm.sq_ramping_threshold = le32_to_cpu(power_info->pplib5.ulSQRampingThreshold); 340 adev->pm.dpm.cac_leakage = le32_to_cpu(power_info->pplib5.ulCACLeakage); 341 adev->pm.dpm.load_line_slope = le16_to_cpu(power_info->pplib5.usLoadLineSlope); 342 if (power_info->pplib5.usCACLeakageTableOffset) { 343 ATOM_PPLIB_CAC_Leakage_Table *cac_table = 344 (ATOM_PPLIB_CAC_Leakage_Table *) 345 (mode_info->atom_context->bios + data_offset + 346 le16_to_cpu(power_info->pplib5.usCACLeakageTableOffset)); 347 ATOM_PPLIB_CAC_Leakage_Record *entry; 348 u32 size = cac_table->ucNumEntries * sizeof(struct amdgpu_cac_leakage_table); 349 adev->pm.dpm.dyn_state.cac_leakage_table.entries = kzalloc(size, GFP_KERNEL); 350 if (!adev->pm.dpm.dyn_state.cac_leakage_table.entries) 351 return -ENOMEM; 352 entry = &cac_table->entries[0]; 353 for (i = 0; i < cac_table->ucNumEntries; i++) { 354 if (adev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_EVV) { 355 adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc1 = 356 le16_to_cpu(entry->usVddc1); 357 adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc2 = 358 le16_to_cpu(entry->usVddc2); 359 adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc3 = 360 le16_to_cpu(entry->usVddc3); 361 } else { 362 adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc = 363 le16_to_cpu(entry->usVddc); 364 adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].leakage = 365 le32_to_cpu(entry->ulLeakageValue); 366 } 367 entry = (ATOM_PPLIB_CAC_Leakage_Record *) 368 ((u8 *)entry + sizeof(ATOM_PPLIB_CAC_Leakage_Record)); 369 } 370 adev->pm.dpm.dyn_state.cac_leakage_table.count = cac_table->ucNumEntries; 371 } 372 } 373 374 /* ext tables */ 375 if (le16_to_cpu(power_info->pplib.usTableSize) >= 376 sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) { 377 ATOM_PPLIB_EXTENDEDHEADER *ext_hdr = (ATOM_PPLIB_EXTENDEDHEADER *) 378 (mode_info->atom_context->bios + data_offset + 379 le16_to_cpu(power_info->pplib3.usExtendendedHeaderOffset)); 380 if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2) && 381 ext_hdr->usVCETableOffset) { 382 VCEClockInfoArray *array = (VCEClockInfoArray *) 383 (mode_info->atom_context->bios + data_offset + 384 le16_to_cpu(ext_hdr->usVCETableOffset) + 1); 385 ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *limits = 386 (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *) 387 (mode_info->atom_context->bios + data_offset + 388 le16_to_cpu(ext_hdr->usVCETableOffset) + 1 + 389 1 + array->ucNumEntries * sizeof(VCEClockInfo)); 390 ATOM_PPLIB_VCE_State_Table *states = 391 (ATOM_PPLIB_VCE_State_Table *) 392 (mode_info->atom_context->bios + data_offset + 393 le16_to_cpu(ext_hdr->usVCETableOffset) + 1 + 394 1 + (array->ucNumEntries * sizeof (VCEClockInfo)) + 395 1 + (limits->numEntries * sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record))); 396 ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *entry; 397 ATOM_PPLIB_VCE_State_Record *state_entry; 398 VCEClockInfo *vce_clk; 399 u32 size = limits->numEntries * 400 sizeof(struct amdgpu_vce_clock_voltage_dependency_entry); 401 adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries = 402 kzalloc(size, GFP_KERNEL); 403 if (!adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries) 404 return -ENOMEM; 405 adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.count = 406 limits->numEntries; 407 entry = &limits->entries[0]; 408 state_entry = &states->entries[0]; 409 for (i = 0; i < limits->numEntries; i++) { 410 vce_clk = (VCEClockInfo *) 411 ((u8 *)&array->entries[0] + 412 (entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo))); 413 adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].evclk = 414 le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16); 415 adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].ecclk = 416 le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16); 417 adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].v = 418 le16_to_cpu(entry->usVoltage); 419 entry = (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *) 420 ((u8 *)entry + sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record)); 421 } 422 adev->pm.dpm.num_of_vce_states = 423 states->numEntries > AMD_MAX_VCE_LEVELS ? 424 AMD_MAX_VCE_LEVELS : states->numEntries; 425 for (i = 0; i < adev->pm.dpm.num_of_vce_states; i++) { 426 vce_clk = (VCEClockInfo *) 427 ((u8 *)&array->entries[0] + 428 (state_entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo))); 429 adev->pm.dpm.vce_states[i].evclk = 430 le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16); 431 adev->pm.dpm.vce_states[i].ecclk = 432 le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16); 433 adev->pm.dpm.vce_states[i].clk_idx = 434 state_entry->ucClockInfoIndex & 0x3f; 435 adev->pm.dpm.vce_states[i].pstate = 436 (state_entry->ucClockInfoIndex & 0xc0) >> 6; 437 state_entry = (ATOM_PPLIB_VCE_State_Record *) 438 ((u8 *)state_entry + sizeof(ATOM_PPLIB_VCE_State_Record)); 439 } 440 } 441 if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3) && 442 ext_hdr->usUVDTableOffset) { 443 UVDClockInfoArray *array = (UVDClockInfoArray *) 444 (mode_info->atom_context->bios + data_offset + 445 le16_to_cpu(ext_hdr->usUVDTableOffset) + 1); 446 ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *limits = 447 (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *) 448 (mode_info->atom_context->bios + data_offset + 449 le16_to_cpu(ext_hdr->usUVDTableOffset) + 1 + 450 1 + (array->ucNumEntries * sizeof (UVDClockInfo))); 451 ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *entry; 452 u32 size = limits->numEntries * 453 sizeof(struct amdgpu_uvd_clock_voltage_dependency_entry); 454 adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries = 455 kzalloc(size, GFP_KERNEL); 456 if (!adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries) 457 return -ENOMEM; 458 adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.count = 459 limits->numEntries; 460 entry = &limits->entries[0]; 461 for (i = 0; i < limits->numEntries; i++) { 462 UVDClockInfo *uvd_clk = (UVDClockInfo *) 463 ((u8 *)&array->entries[0] + 464 (entry->ucUVDClockInfoIndex * sizeof(UVDClockInfo))); 465 adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].vclk = 466 le16_to_cpu(uvd_clk->usVClkLow) | (uvd_clk->ucVClkHigh << 16); 467 adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].dclk = 468 le16_to_cpu(uvd_clk->usDClkLow) | (uvd_clk->ucDClkHigh << 16); 469 adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].v = 470 le16_to_cpu(entry->usVoltage); 471 entry = (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *) 472 ((u8 *)entry + sizeof(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record)); 473 } 474 } 475 if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4) && 476 ext_hdr->usSAMUTableOffset) { 477 ATOM_PPLIB_SAMClk_Voltage_Limit_Table *limits = 478 (ATOM_PPLIB_SAMClk_Voltage_Limit_Table *) 479 (mode_info->atom_context->bios + data_offset + 480 le16_to_cpu(ext_hdr->usSAMUTableOffset) + 1); 481 ATOM_PPLIB_SAMClk_Voltage_Limit_Record *entry; 482 u32 size = limits->numEntries * 483 sizeof(struct amdgpu_clock_voltage_dependency_entry); 484 adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries = 485 kzalloc(size, GFP_KERNEL); 486 if (!adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries) 487 return -ENOMEM; 488 adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.count = 489 limits->numEntries; 490 entry = &limits->entries[0]; 491 for (i = 0; i < limits->numEntries; i++) { 492 adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].clk = 493 le16_to_cpu(entry->usSAMClockLow) | (entry->ucSAMClockHigh << 16); 494 adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].v = 495 le16_to_cpu(entry->usVoltage); 496 entry = (ATOM_PPLIB_SAMClk_Voltage_Limit_Record *) 497 ((u8 *)entry + sizeof(ATOM_PPLIB_SAMClk_Voltage_Limit_Record)); 498 } 499 } 500 if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5) && 501 ext_hdr->usPPMTableOffset) { 502 ATOM_PPLIB_PPM_Table *ppm = (ATOM_PPLIB_PPM_Table *) 503 (mode_info->atom_context->bios + data_offset + 504 le16_to_cpu(ext_hdr->usPPMTableOffset)); 505 adev->pm.dpm.dyn_state.ppm_table = 506 kzalloc(sizeof(struct amdgpu_ppm_table), GFP_KERNEL); 507 if (!adev->pm.dpm.dyn_state.ppm_table) 508 return -ENOMEM; 509 adev->pm.dpm.dyn_state.ppm_table->ppm_design = ppm->ucPpmDesign; 510 adev->pm.dpm.dyn_state.ppm_table->cpu_core_number = 511 le16_to_cpu(ppm->usCpuCoreNumber); 512 adev->pm.dpm.dyn_state.ppm_table->platform_tdp = 513 le32_to_cpu(ppm->ulPlatformTDP); 514 adev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdp = 515 le32_to_cpu(ppm->ulSmallACPlatformTDP); 516 adev->pm.dpm.dyn_state.ppm_table->platform_tdc = 517 le32_to_cpu(ppm->ulPlatformTDC); 518 adev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdc = 519 le32_to_cpu(ppm->ulSmallACPlatformTDC); 520 adev->pm.dpm.dyn_state.ppm_table->apu_tdp = 521 le32_to_cpu(ppm->ulApuTDP); 522 adev->pm.dpm.dyn_state.ppm_table->dgpu_tdp = 523 le32_to_cpu(ppm->ulDGpuTDP); 524 adev->pm.dpm.dyn_state.ppm_table->dgpu_ulv_power = 525 le32_to_cpu(ppm->ulDGpuUlvPower); 526 adev->pm.dpm.dyn_state.ppm_table->tj_max = 527 le32_to_cpu(ppm->ulTjmax); 528 } 529 if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6) && 530 ext_hdr->usACPTableOffset) { 531 ATOM_PPLIB_ACPClk_Voltage_Limit_Table *limits = 532 (ATOM_PPLIB_ACPClk_Voltage_Limit_Table *) 533 (mode_info->atom_context->bios + data_offset + 534 le16_to_cpu(ext_hdr->usACPTableOffset) + 1); 535 ATOM_PPLIB_ACPClk_Voltage_Limit_Record *entry; 536 u32 size = limits->numEntries * 537 sizeof(struct amdgpu_clock_voltage_dependency_entry); 538 adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries = 539 kzalloc(size, GFP_KERNEL); 540 if (!adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries) 541 return -ENOMEM; 542 adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.count = 543 limits->numEntries; 544 entry = &limits->entries[0]; 545 for (i = 0; i < limits->numEntries; i++) { 546 adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].clk = 547 le16_to_cpu(entry->usACPClockLow) | (entry->ucACPClockHigh << 16); 548 adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].v = 549 le16_to_cpu(entry->usVoltage); 550 entry = (ATOM_PPLIB_ACPClk_Voltage_Limit_Record *) 551 ((u8 *)entry + sizeof(ATOM_PPLIB_ACPClk_Voltage_Limit_Record)); 552 } 553 } 554 if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) && 555 ext_hdr->usPowerTuneTableOffset) { 556 u8 rev = *(u8 *)(mode_info->atom_context->bios + data_offset + 557 le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); 558 ATOM_PowerTune_Table *pt; 559 adev->pm.dpm.dyn_state.cac_tdp_table = 560 kzalloc(sizeof(struct amdgpu_cac_tdp_table), GFP_KERNEL); 561 if (!adev->pm.dpm.dyn_state.cac_tdp_table) 562 return -ENOMEM; 563 if (rev > 0) { 564 ATOM_PPLIB_POWERTUNE_Table_V1 *ppt = (ATOM_PPLIB_POWERTUNE_Table_V1 *) 565 (mode_info->atom_context->bios + data_offset + 566 le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); 567 adev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = 568 ppt->usMaximumPowerDeliveryLimit; 569 pt = &ppt->power_tune_table; 570 } else { 571 ATOM_PPLIB_POWERTUNE_Table *ppt = (ATOM_PPLIB_POWERTUNE_Table *) 572 (mode_info->atom_context->bios + data_offset + 573 le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); 574 adev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = 255; 575 pt = &ppt->power_tune_table; 576 } 577 adev->pm.dpm.dyn_state.cac_tdp_table->tdp = le16_to_cpu(pt->usTDP); 578 adev->pm.dpm.dyn_state.cac_tdp_table->configurable_tdp = 579 le16_to_cpu(pt->usConfigurableTDP); 580 adev->pm.dpm.dyn_state.cac_tdp_table->tdc = le16_to_cpu(pt->usTDC); 581 adev->pm.dpm.dyn_state.cac_tdp_table->battery_power_limit = 582 le16_to_cpu(pt->usBatteryPowerLimit); 583 adev->pm.dpm.dyn_state.cac_tdp_table->small_power_limit = 584 le16_to_cpu(pt->usSmallPowerLimit); 585 adev->pm.dpm.dyn_state.cac_tdp_table->low_cac_leakage = 586 le16_to_cpu(pt->usLowCACLeakage); 587 adev->pm.dpm.dyn_state.cac_tdp_table->high_cac_leakage = 588 le16_to_cpu(pt->usHighCACLeakage); 589 } 590 if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V8) && 591 ext_hdr->usSclkVddgfxTableOffset) { 592 dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) 593 (mode_info->atom_context->bios + data_offset + 594 le16_to_cpu(ext_hdr->usSclkVddgfxTableOffset)); 595 ret = amdgpu_parse_clk_voltage_dep_table( 596 &adev->pm.dpm.dyn_state.vddgfx_dependency_on_sclk, 597 dep_table); 598 if (ret) 599 return ret; 600 } 601 } 602 603 return 0; 604} 605 606void amdgpu_free_extended_power_table(struct amdgpu_device *adev) 607{ 608 struct amdgpu_dpm_dynamic_state *dyn_state = &adev->pm.dpm.dyn_state; 609 610 kfree(dyn_state->vddc_dependency_on_sclk.entries); 611 kfree(dyn_state->vddci_dependency_on_mclk.entries); 612 kfree(dyn_state->vddc_dependency_on_mclk.entries); 613 kfree(dyn_state->mvdd_dependency_on_mclk.entries); 614 kfree(dyn_state->cac_leakage_table.entries); 615 kfree(dyn_state->phase_shedding_limits_table.entries); 616 kfree(dyn_state->ppm_table); 617 kfree(dyn_state->cac_tdp_table); 618 kfree(dyn_state->vce_clock_voltage_dependency_table.entries); 619 kfree(dyn_state->uvd_clock_voltage_dependency_table.entries); 620 kfree(dyn_state->samu_clock_voltage_dependency_table.entries); 621 kfree(dyn_state->acp_clock_voltage_dependency_table.entries); 622 kfree(dyn_state->vddgfx_dependency_on_sclk.entries); 623} 624 625static const char *pp_lib_thermal_controller_names[] = { 626 "NONE", 627 "lm63", 628 "adm1032", 629 "adm1030", 630 "max6649", 631 "lm64", 632 "f75375", 633 "RV6xx", 634 "RV770", 635 "adt7473", 636 "NONE", 637 "External GPIO", 638 "Evergreen", 639 "emc2103", 640 "Sumo", 641 "Northern Islands", 642 "Southern Islands", 643 "lm96163", 644 "Sea Islands", 645 "Kaveri/Kabini", 646}; 647 648void amdgpu_add_thermal_controller(struct amdgpu_device *adev) 649{ 650 struct amdgpu_mode_info *mode_info = &adev->mode_info; 651 ATOM_PPLIB_POWERPLAYTABLE *power_table; 652 int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo); 653 ATOM_PPLIB_THERMALCONTROLLER *controller; 654 struct amdgpu_i2c_bus_rec i2c_bus; 655 u16 data_offset; 656 u8 frev, crev; 657 658 if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, 659 &frev, &crev, &data_offset)) 660 return; 661 power_table = (ATOM_PPLIB_POWERPLAYTABLE *) 662 (mode_info->atom_context->bios + data_offset); 663 controller = &power_table->sThermalController; 664 665 /* add the i2c bus for thermal/fan chip */ 666 if (controller->ucType > 0) { 667 if (controller->ucFanParameters & ATOM_PP_FANPARAMETERS_NOFAN) 668 adev->pm.no_fan = true; 669 adev->pm.fan_pulses_per_revolution = 670 controller->ucFanParameters & ATOM_PP_FANPARAMETERS_TACHOMETER_PULSES_PER_REVOLUTION_MASK; 671 if (adev->pm.fan_pulses_per_revolution) { 672 adev->pm.fan_min_rpm = controller->ucFanMinRPM; 673 adev->pm.fan_max_rpm = controller->ucFanMaxRPM; 674 } 675 if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV6xx) { 676 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 677 (controller->ucFanParameters & 678 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 679 adev->pm.int_thermal_type = THERMAL_TYPE_RV6XX; 680 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV770) { 681 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 682 (controller->ucFanParameters & 683 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 684 adev->pm.int_thermal_type = THERMAL_TYPE_RV770; 685 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_EVERGREEN) { 686 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 687 (controller->ucFanParameters & 688 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 689 adev->pm.int_thermal_type = THERMAL_TYPE_EVERGREEN; 690 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SUMO) { 691 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 692 (controller->ucFanParameters & 693 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 694 adev->pm.int_thermal_type = THERMAL_TYPE_SUMO; 695 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_NISLANDS) { 696 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 697 (controller->ucFanParameters & 698 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 699 adev->pm.int_thermal_type = THERMAL_TYPE_NI; 700 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SISLANDS) { 701 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 702 (controller->ucFanParameters & 703 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 704 adev->pm.int_thermal_type = THERMAL_TYPE_SI; 705 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_CISLANDS) { 706 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 707 (controller->ucFanParameters & 708 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 709 adev->pm.int_thermal_type = THERMAL_TYPE_CI; 710 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_KAVERI) { 711 drm_info(adev_to_drm(adev), "Internal thermal controller %s fan control\n", 712 (controller->ucFanParameters & 713 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 714 adev->pm.int_thermal_type = THERMAL_TYPE_KV; 715 } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_EXTERNAL_GPIO) { 716 drm_info(adev_to_drm(adev), "External GPIO thermal controller %s fan control\n", 717 (controller->ucFanParameters & 718 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 719 adev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL_GPIO; 720 } else if (controller->ucType == 721 ATOM_PP_THERMALCONTROLLER_ADT7473_WITH_INTERNAL) { 722 drm_info(adev_to_drm(adev), "ADT7473 with internal thermal controller %s fan control\n", 723 (controller->ucFanParameters & 724 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 725 adev->pm.int_thermal_type = THERMAL_TYPE_ADT7473_WITH_INTERNAL; 726 } else if (controller->ucType == 727 ATOM_PP_THERMALCONTROLLER_EMC2103_WITH_INTERNAL) { 728 drm_info(adev_to_drm(adev), "EMC2103 with internal thermal controller %s fan control\n", 729 (controller->ucFanParameters & 730 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 731 adev->pm.int_thermal_type = THERMAL_TYPE_EMC2103_WITH_INTERNAL; 732 } else if (controller->ucType < ARRAY_SIZE(pp_lib_thermal_controller_names)) { 733 drm_info(adev_to_drm(adev), "Possible %s thermal controller at 0x%02x %s fan control\n", 734 pp_lib_thermal_controller_names[controller->ucType], 735 controller->ucI2cAddress >> 1, 736 (controller->ucFanParameters & 737 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 738 adev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL; 739 i2c_bus = amdgpu_atombios_lookup_i2c_gpio(adev, controller->ucI2cLine); 740 adev->pm.i2c_bus = amdgpu_i2c_lookup(adev, &i2c_bus); 741 if (adev->pm.i2c_bus) { 742 struct i2c_board_info info = { }; 743 const char *name = pp_lib_thermal_controller_names[controller->ucType]; 744 info.addr = controller->ucI2cAddress >> 1; 745 strscpy(info.type, name, sizeof(info.type)); 746 i2c_new_client_device(&adev->pm.i2c_bus->adapter, &info); 747 } 748 } else { 749 drm_info(adev_to_drm(adev), "Unknown thermal controller type %d at 0x%02x %s fan control\n", 750 controller->ucType, 751 controller->ucI2cAddress >> 1, 752 (controller->ucFanParameters & 753 ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); 754 } 755 } 756} 757 758struct amd_vce_state* amdgpu_get_vce_clock_state(void *handle, u32 idx) 759{ 760 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 761 762 if (idx < adev->pm.dpm.num_of_vce_states) 763 return &adev->pm.dpm.vce_states[idx]; 764 765 return NULL; 766} 767 768static struct amdgpu_ps *amdgpu_dpm_pick_power_state(struct amdgpu_device *adev, 769 enum amd_pm_state_type dpm_state) 770{ 771 int i; 772 struct amdgpu_ps *ps; 773 u32 ui_class; 774 bool single_display = adev->pm.pm_display_cfg.num_display < 2; 775 776 /* check if the vblank period is too short to adjust the mclk */ 777 if (single_display && adev->powerplay.pp_funcs->vblank_too_short) { 778 if (amdgpu_dpm_vblank_too_short(adev)) 779 single_display = false; 780 } 781 782 /* certain older asics have a separare 3D performance state, 783 * so try that first if the user selected performance 784 */ 785 if (dpm_state == POWER_STATE_TYPE_PERFORMANCE) 786 dpm_state = POWER_STATE_TYPE_INTERNAL_3DPERF; 787 /* balanced states don't exist at the moment */ 788 if (dpm_state == POWER_STATE_TYPE_BALANCED) 789 dpm_state = POWER_STATE_TYPE_PERFORMANCE; 790 791restart_search: 792 /* Pick the best power state based on current conditions */ 793 for (i = 0; i < adev->pm.dpm.num_ps; i++) { 794 ps = &adev->pm.dpm.ps[i]; 795 ui_class = ps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK; 796 switch (dpm_state) { 797 /* user states */ 798 case POWER_STATE_TYPE_BATTERY: 799 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) { 800 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { 801 if (single_display) 802 return ps; 803 } else 804 return ps; 805 } 806 break; 807 case POWER_STATE_TYPE_PERFORMANCE: 808 if (ui_class == ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) { 809 if (ps->caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) { 810 if (single_display) 811 return ps; 812 } else 813 return ps; 814 } 815 break; 816 /* internal states */ 817 case POWER_STATE_TYPE_INTERNAL_UVD: 818 if (adev->pm.dpm.uvd_ps) 819 return adev->pm.dpm.uvd_ps; 820 else 821 break; 822 case POWER_STATE_TYPE_INTERNAL_UVD_SD: 823 if (ps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) 824 return ps; 825 break; 826 case POWER_STATE_TYPE_INTERNAL_UVD_HD: 827 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE) 828 return ps; 829 break; 830 case POWER_STATE_TYPE_INTERNAL_UVD_HD2: 831 if (ps->class & ATOM_PPLIB_CLASSIFICATION_HD2STATE) 832 return ps; 833 break; 834 case POWER_STATE_TYPE_INTERNAL_UVD_MVC: 835 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC) 836 return ps; 837 break; 838 case POWER_STATE_TYPE_INTERNAL_BOOT: 839 return adev->pm.dpm.boot_ps; 840 case POWER_STATE_TYPE_INTERNAL_THERMAL: 841 if (ps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL) 842 return ps; 843 break; 844 case POWER_STATE_TYPE_INTERNAL_ACPI: 845 if (ps->class & ATOM_PPLIB_CLASSIFICATION_ACPI) 846 return ps; 847 break; 848 case POWER_STATE_TYPE_INTERNAL_ULV: 849 if (ps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV) 850 return ps; 851 break; 852 case POWER_STATE_TYPE_INTERNAL_3DPERF: 853 if (ps->class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE) 854 return ps; 855 break; 856 default: 857 break; 858 } 859 } 860 /* use a fallback state if we didn't match */ 861 switch (dpm_state) { 862 case POWER_STATE_TYPE_INTERNAL_UVD_SD: 863 dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD; 864 goto restart_search; 865 case POWER_STATE_TYPE_INTERNAL_UVD_HD: 866 case POWER_STATE_TYPE_INTERNAL_UVD_HD2: 867 case POWER_STATE_TYPE_INTERNAL_UVD_MVC: 868 if (adev->pm.dpm.uvd_ps) { 869 return adev->pm.dpm.uvd_ps; 870 } else { 871 dpm_state = POWER_STATE_TYPE_PERFORMANCE; 872 goto restart_search; 873 } 874 case POWER_STATE_TYPE_INTERNAL_THERMAL: 875 dpm_state = POWER_STATE_TYPE_INTERNAL_ACPI; 876 goto restart_search; 877 case POWER_STATE_TYPE_INTERNAL_ACPI: 878 dpm_state = POWER_STATE_TYPE_BATTERY; 879 goto restart_search; 880 case POWER_STATE_TYPE_BATTERY: 881 case POWER_STATE_TYPE_BALANCED: 882 case POWER_STATE_TYPE_INTERNAL_3DPERF: 883 dpm_state = POWER_STATE_TYPE_PERFORMANCE; 884 goto restart_search; 885 default: 886 break; 887 } 888 889 return NULL; 890} 891 892static int amdgpu_dpm_change_power_state_locked(struct amdgpu_device *adev) 893{ 894 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs; 895 struct amdgpu_ps *ps; 896 enum amd_pm_state_type dpm_state; 897 int ret; 898 bool equal = false; 899 900 /* if dpm init failed */ 901 if (!adev->pm.dpm_enabled) 902 return 0; 903 904 if (adev->pm.dpm.user_state != adev->pm.dpm.state) { 905 /* add other state override checks here */ 906 if ((!adev->pm.dpm.thermal_active) && 907 (!adev->pm.dpm.uvd_active)) 908 adev->pm.dpm.state = adev->pm.dpm.user_state; 909 } 910 dpm_state = adev->pm.dpm.state; 911 912 ps = amdgpu_dpm_pick_power_state(adev, dpm_state); 913 if (ps) 914 adev->pm.dpm.requested_ps = ps; 915 else 916 return -EINVAL; 917 918 if (amdgpu_dpm == 1 && pp_funcs->print_power_state) { 919 drm_dbg(adev_to_drm(adev), "switching from power state\n"); 920 amdgpu_dpm_print_power_state(adev, adev->pm.dpm.current_ps); 921 drm_dbg(adev_to_drm(adev), "switching to power state\n"); 922 amdgpu_dpm_print_power_state(adev, adev->pm.dpm.requested_ps); 923 } 924 925 /* update whether vce is active */ 926 ps->vce_active = adev->pm.dpm.vce_active; 927 if (pp_funcs->display_configuration_changed) 928 amdgpu_dpm_display_configuration_changed(adev); 929 930 ret = amdgpu_dpm_pre_set_power_state(adev); 931 if (ret) 932 return ret; 933 934 if (pp_funcs->check_state_equal) { 935 if (0 != amdgpu_dpm_check_state_equal(adev, adev->pm.dpm.current_ps, adev->pm.dpm.requested_ps, &equal)) 936 equal = false; 937 } 938 939 if (equal) 940 return 0; 941 942 if (pp_funcs->set_power_state) 943 pp_funcs->set_power_state(adev->powerplay.pp_handle); 944 945 amdgpu_dpm_post_set_power_state(adev); 946 947 if (pp_funcs->force_performance_level) { 948 if (adev->pm.dpm.thermal_active) { 949 enum amd_dpm_forced_level level = adev->pm.dpm.forced_level; 950 /* force low perf level for thermal */ 951 pp_funcs->force_performance_level(adev, AMD_DPM_FORCED_LEVEL_LOW); 952 /* save the user's level */ 953 adev->pm.dpm.forced_level = level; 954 } else { 955 /* otherwise, user selected level */ 956 pp_funcs->force_performance_level(adev, adev->pm.dpm.forced_level); 957 } 958 } 959 960 return 0; 961} 962 963void amdgpu_legacy_dpm_compute_clocks(void *handle) 964{ 965 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 966 967 if (!adev->dc_enabled) 968 amdgpu_dpm_get_display_cfg(adev); 969 970 amdgpu_dpm_change_power_state_locked(adev); 971} 972 973void amdgpu_dpm_thermal_work_handler(struct work_struct *work) 974{ 975 struct amdgpu_device *adev = 976 container_of(work, struct amdgpu_device, 977 pm.dpm.thermal.work); 978 const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs; 979 /* switch to the thermal state */ 980 enum amd_pm_state_type dpm_state = POWER_STATE_TYPE_INTERNAL_THERMAL; 981 int temp, size = sizeof(temp); 982 983 mutex_lock(&adev->pm.mutex); 984 985 if (!adev->pm.dpm_enabled) { 986 mutex_unlock(&adev->pm.mutex); 987 return; 988 } 989 if (!pp_funcs->read_sensor(adev->powerplay.pp_handle, 990 AMDGPU_PP_SENSOR_GPU_TEMP, 991 (void *)&temp, 992 &size)) { 993 if (temp < adev->pm.dpm.thermal.min_temp) 994 /* switch back the user state */ 995 dpm_state = adev->pm.dpm.user_state; 996 } else { 997 if (adev->pm.dpm.thermal.high_to_low) 998 /* switch back the user state */ 999 dpm_state = adev->pm.dpm.user_state; 1000 } 1001 1002 if (dpm_state == POWER_STATE_TYPE_INTERNAL_THERMAL) 1003 adev->pm.dpm.thermal_active = true; 1004 else 1005 adev->pm.dpm.thermal_active = false; 1006 1007 adev->pm.dpm.state = dpm_state; 1008 1009 amdgpu_legacy_dpm_compute_clocks(adev->powerplay.pp_handle); 1010 mutex_unlock(&adev->pm.mutex); 1011}
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