zbao | 7d94cf9 | 2012-07-02 14:19:14 +0800 | [diff] [blame] | 1 | /* $NoKeywords:$ */ |
| 2 | /** |
| 3 | * @file |
| 4 | * |
| 5 | * AMD CPU Pstate Leveling Function. |
| 6 | * |
| 7 | * Contains code to level the Pstates in a multi-socket system |
| 8 | * |
| 9 | * @xrefitem bom "File Content Label" "Release Content" |
| 10 | * @e project: AGESA |
| 11 | * @e sub-project: CPU |
| 12 | * @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $ |
| 13 | * |
| 14 | */ |
| 15 | /***************************************************************************** |
| 16 | * |
Siyuan Wang | 641f00c | 2013-06-08 11:50:55 +0800 | [diff] [blame] | 17 | * Copyright (c) 2008 - 2012, Advanced Micro Devices, Inc. |
| 18 | * All rights reserved. |
zbao | 7d94cf9 | 2012-07-02 14:19:14 +0800 | [diff] [blame] | 19 | * |
Siyuan Wang | 641f00c | 2013-06-08 11:50:55 +0800 | [diff] [blame] | 20 | * Redistribution and use in source and binary forms, with or without |
| 21 | * modification, are permitted provided that the following conditions are met: |
| 22 | * * Redistributions of source code must retain the above copyright |
| 23 | * notice, this list of conditions and the following disclaimer. |
| 24 | * * Redistributions in binary form must reproduce the above copyright |
| 25 | * notice, this list of conditions and the following disclaimer in the |
| 26 | * documentation and/or other materials provided with the distribution. |
| 27 | * * Neither the name of Advanced Micro Devices, Inc. nor the names of |
| 28 | * its contributors may be used to endorse or promote products derived |
| 29 | * from this software without specific prior written permission. |
zbao | 7d94cf9 | 2012-07-02 14:19:14 +0800 | [diff] [blame] | 30 | * |
Siyuan Wang | 641f00c | 2013-06-08 11:50:55 +0800 | [diff] [blame] | 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| 32 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 33 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 34 | * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY |
| 35 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 36 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 37 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 38 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 39 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 40 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
zbao | 7d94cf9 | 2012-07-02 14:19:14 +0800 | [diff] [blame] | 41 | ****************************************************************************** |
| 42 | *---------------------------------------------------------------------------- |
| 43 | */ |
| 44 | |
| 45 | |
| 46 | /* |
| 47 | *---------------------------------------------------------------------------- |
| 48 | * MODULES USED |
| 49 | * |
| 50 | *---------------------------------------------------------------------------- |
| 51 | */ |
| 52 | #include "AGESA.h" |
| 53 | #include "amdlib.h" |
| 54 | #include "OptionPstate.h" |
| 55 | #include "cpuLateInit.h" |
| 56 | #include "cpuRegisters.h" |
| 57 | #include "cpuPostInit.h" |
| 58 | #include "Ids.h" |
| 59 | #include "cpuFamilyTranslation.h" |
| 60 | #include "cpuPstateTables.h" |
| 61 | #include "cpuApicUtilities.h" |
| 62 | #include "cpuServices.h" |
| 63 | #include "GeneralServices.h" |
| 64 | #include "Filecode.h" |
| 65 | CODE_GROUP (G1_PEICC) |
| 66 | RDATA_GROUP (G1_PEICC) |
| 67 | |
| 68 | #define FILECODE PROC_CPU_FEATURE_CPUPSTATELEVELING_FILECODE |
| 69 | |
| 70 | /*---------------------------------------------------------------------------- |
| 71 | * DEFINITIONS AND MACROS |
| 72 | * |
| 73 | *---------------------------------------------------------------------------- |
| 74 | */ |
| 75 | extern OPTION_PSTATE_POST_CONFIGURATION OptionPstatePostConfiguration; // global user config record |
| 76 | extern CPU_FAMILY_SUPPORT_TABLE PstateFamilyServiceTable; |
| 77 | |
| 78 | /*---------------------------------------------------------------------------- |
| 79 | * TYPEDEFS AND STRUCTURES |
| 80 | * |
| 81 | *---------------------------------------------------------------------------- |
| 82 | */ |
| 83 | |
| 84 | /*---------------------------------------------------------------------------- |
| 85 | * PROTOTYPES OF LOCAL FUNCTIONS |
| 86 | * |
| 87 | *---------------------------------------------------------------------------- |
| 88 | */ |
| 89 | AGESA_STATUS |
| 90 | PutAllCoreInPState0 ( |
| 91 | IN OUT PSTATE_LEVELING *PStateBufferPtr, |
| 92 | IN AMD_CONFIG_PARAMS *StdHeader |
| 93 | ); |
| 94 | |
| 95 | AGESA_STATUS |
| 96 | StartPstateMsrModify ( |
| 97 | IN S_CPU_AMD_PSTATE *CpuAmdPState, |
| 98 | IN AMD_CONFIG_PARAMS *StdHeader |
| 99 | ); |
| 100 | |
| 101 | VOID |
| 102 | STATIC |
| 103 | PutCoreInPState0 ( |
| 104 | IN VOID *PStateBuffer, |
| 105 | IN AMD_CONFIG_PARAMS *StdHeader |
| 106 | ); |
| 107 | |
| 108 | AGESA_STATUS |
| 109 | PStateLevelingStub ( |
| 110 | IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr, |
| 111 | IN AMD_CONFIG_PARAMS *StdHeader |
| 112 | ); |
| 113 | |
| 114 | AGESA_STATUS |
| 115 | PStateLevelingMain ( |
| 116 | IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr, |
| 117 | IN AMD_CONFIG_PARAMS *StdHeader |
| 118 | ); |
| 119 | |
| 120 | VOID |
| 121 | CorePstateRegModify ( |
| 122 | IN VOID *CpuAmdPState, |
| 123 | IN AMD_CONFIG_PARAMS *StdHeader |
| 124 | ); |
| 125 | |
| 126 | /** |
| 127 | *--------------------------------------------------------------------------------------- |
| 128 | * |
| 129 | * PStateLeveling |
| 130 | * |
| 131 | * Description: |
| 132 | * This function will populate the PStateBuffer, after doing the PState Leveling |
| 133 | * Note: This function should be called for every core in the system. |
| 134 | * |
| 135 | * Parameters: |
| 136 | * @param[in,out] *PStateStrucPtr |
| 137 | * @param[in] *StdHeader |
| 138 | * |
| 139 | * @retval AGESA_STATUS |
| 140 | * |
| 141 | *--------------------------------------------------------------------------------------- |
| 142 | **/ |
| 143 | AGESA_STATUS |
| 144 | PStateLeveling ( |
| 145 | IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr, |
| 146 | IN AMD_CONFIG_PARAMS *StdHeader |
| 147 | ) |
| 148 | { |
| 149 | AGESA_TESTPOINT (TpProcCpuEntryPstateLeveling, StdHeader); |
| 150 | return ((*(OptionPstatePostConfiguration.PstateLeveling)) (PStateStrucPtr, StdHeader)); |
| 151 | // Note: Split config struct into PEI/DXE halves. This one is PEI. |
| 152 | } |
| 153 | |
| 154 | /**-------------------------------------------------------------------------------------- |
| 155 | * |
| 156 | * PStateLevelingStub |
| 157 | * |
| 158 | * Description: |
| 159 | * This is the default routine for use when the PState option is NOT requested. |
| 160 | * The option install process will create and fill the transfer vector with |
| 161 | * the address of the proper routine (Main or Stub). The link optimizer will |
| 162 | * strip out of the .DLL the routine that is not used. |
| 163 | * |
| 164 | * Parameters: |
| 165 | * @param[in,out] *PStateStrucPtr |
| 166 | * @param[in] *StdHeader |
| 167 | * |
| 168 | * @retval AGESA_STATUS |
| 169 | * |
| 170 | *--------------------------------------------------------------------------------------- |
| 171 | **/ |
| 172 | AGESA_STATUS |
| 173 | PStateLevelingStub ( |
| 174 | IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr, |
| 175 | IN AMD_CONFIG_PARAMS *StdHeader |
| 176 | ) |
| 177 | { |
| 178 | return AGESA_UNSUPPORTED; |
| 179 | } |
| 180 | |
| 181 | /**-------------------------------------------------------------------------------------- |
| 182 | * |
| 183 | * PStateLevelingMain |
| 184 | * |
| 185 | * Description: |
| 186 | * This is the common routine for creating the ACPI information tables. |
| 187 | * |
| 188 | * Parameters: |
| 189 | * @param[in,out] *PStateStrucPtr |
| 190 | * @param[in] *StdHeader |
| 191 | * |
| 192 | * @retval AGESA_STATUS |
| 193 | * |
| 194 | *--------------------------------------------------------------------------------------- |
| 195 | **/ |
| 196 | AGESA_STATUS |
| 197 | PStateLevelingMain ( |
| 198 | IN OUT S_CPU_AMD_PSTATE *PStateStrucPtr, |
| 199 | IN AMD_CONFIG_PARAMS *StdHeader |
| 200 | ) |
| 201 | { |
| 202 | UINT32 i; |
| 203 | UINT32 k; |
| 204 | UINT32 m; |
| 205 | UINT32 TotalIterations; |
| 206 | UINT32 LogicalSocketCount; |
| 207 | UINT32 TempVar_a; |
| 208 | UINT32 TempVar_b; |
| 209 | UINT32 TempVar_c; |
| 210 | UINT32 TempVar_d; |
| 211 | UINT32 TempVar_e; |
| 212 | UINT32 TempVar_f; |
| 213 | PCI_ADDR PciAddress; |
| 214 | |
| 215 | UINT32 TempFreqArray[20]; |
| 216 | UINT32 TempPowerArray[20]; |
| 217 | UINT32 TempIddValueArray[20]; |
| 218 | UINT32 TempIddDivArray[20]; |
| 219 | UINT32 TempSocketPiArray[20]; |
| 220 | UINT32 TempSwP0Array[MAX_SOCKETS_SUPPORTED]; |
| 221 | |
| 222 | BOOLEAN TempFlag1; |
| 223 | BOOLEAN TempFlag2; |
| 224 | BOOLEAN TempFlag3; |
| 225 | BOOLEAN TempFlag4; |
| 226 | BOOLEAN AllCoresHaveHtcCapEquToZeroFlag; |
| 227 | BOOLEAN AllCoreHaveMaxOnePStateFlag; |
| 228 | BOOLEAN PstateMaxValEquToPstateHtcLimitFlag; |
| 229 | BOOLEAN AtLeastOneCoreHasPstateHtcLimitEquToOneFlag; |
| 230 | BOOLEAN PstateMaxValMinusHtcPstateLimitLessThan2Flag; |
| 231 | PSTATE_LEVELING *PStateBufferPtr; |
| 232 | PSTATE_LEVELING *PStateBufferPtrTmp = NULL; |
| 233 | UINT32 MaxPstateInNode; |
| 234 | AGESA_STATUS Status; |
| 235 | |
| 236 | TempFlag1 = FALSE; |
| 237 | TempFlag2 = FALSE; |
| 238 | TempFlag3 = FALSE; |
| 239 | TempFlag4 = FALSE; |
| 240 | AllCoresHaveHtcCapEquToZeroFlag = FALSE; |
| 241 | AllCoreHaveMaxOnePStateFlag = FALSE; |
| 242 | PstateMaxValEquToPstateHtcLimitFlag = FALSE; |
| 243 | AtLeastOneCoreHasPstateHtcLimitEquToOneFlag = FALSE; |
| 244 | PstateMaxValMinusHtcPstateLimitLessThan2Flag = FALSE; |
| 245 | PStateBufferPtr = PStateStrucPtr->PStateLevelingStruc; |
| 246 | Status = AGESA_SUCCESS; |
| 247 | |
| 248 | if (PStateBufferPtr[0].SetPState0 == PSTATE_FLAG_1) { |
| 249 | PStateBufferPtr[0].AllCpusHaveIdenticalPStates = TRUE; |
| 250 | PStateBufferPtr[0].InitStruct = 1; |
| 251 | return AGESA_UNSUPPORTED; |
| 252 | } |
| 253 | |
| 254 | LogicalSocketCount = PStateStrucPtr->TotalSocketInSystem; |
| 255 | ASSERT (LogicalSocketCount <= MAX_SOCKETS_SUPPORTED); |
| 256 | |
| 257 | // This section of code will execute only for "core 0" i.e. BSP |
| 258 | // Read P-States of all the cores. |
| 259 | if (PStateBufferPtr[0].InitStruct == 0) { |
| 260 | // Determine 'software' P0 indices for each socket |
| 261 | for (i = 0; i < LogicalSocketCount; i++) { |
| 262 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 263 | TempSwP0Array[i] = (UINT32) (PStateBufferPtrTmp->PStateCoreStruct[0].NumberOfBoostedStates); |
| 264 | } |
| 265 | |
| 266 | // Check if core frequency and power are same across all sockets. |
| 267 | TempFlag1 = FALSE; |
| 268 | for (i = 1; i < LogicalSocketCount; i++) { |
| 269 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 270 | if ((PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue != PStateBufferPtr[0].PStateCoreStruct[0].PStateMaxValue)) { |
| 271 | TempFlag1 = TRUE; |
| 272 | break; |
| 273 | } |
| 274 | MaxPstateInNode = PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue; |
| 275 | for (k = TempSwP0Array[i]; k <= MaxPstateInNode; k++) { |
| 276 | if ((PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[k].CoreFreq != |
| 277 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[k].CoreFreq) || |
| 278 | (PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[k].Power != |
| 279 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[k].Power)) { |
| 280 | TempFlag1 = TRUE; |
| 281 | break; // Come out of the inner FOR loop |
| 282 | } |
| 283 | } |
| 284 | if (TempFlag1) { |
| 285 | break; // Come out of the outer FOR loop |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | if (!TempFlag1) { |
| 290 | // No need to do pStateLeveling, or writing to pState MSR registers |
| 291 | // if all CPUs have Identical PStates |
| 292 | PStateBufferPtr[0].AllCpusHaveIdenticalPStates = TRUE; |
| 293 | PStateBufferPtr[0].InitStruct = 1; |
| 294 | PutAllCoreInPState0 (PStateBufferPtr, StdHeader); |
| 295 | return AGESA_UNSUPPORTED; |
| 296 | } else { |
| 297 | PStateBufferPtr[0].AllCpusHaveIdenticalPStates = FALSE; |
| 298 | } |
| 299 | |
| 300 | // 1_b) & 1_c) |
| 301 | TempFlag1 = FALSE; |
| 302 | TempFlag2 = FALSE; |
| 303 | for (i = 0; i < LogicalSocketCount; i++) { |
| 304 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 305 | if (PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue == TempSwP0Array[i]) { |
| 306 | TempFlag1 = TRUE; |
| 307 | } else { |
| 308 | TempFlag2 = TRUE; |
| 309 | } |
| 310 | if (PStateBufferPtrTmp->PStateCoreStruct[0].HtcCapable == 0) { |
| 311 | TempFlag3 = TRUE; |
| 312 | } else { |
| 313 | TempFlag4 = TRUE; |
| 314 | } |
| 315 | |
| 316 | if ((PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue - |
| 317 | PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit) < 2) { |
| 318 | PstateMaxValMinusHtcPstateLimitLessThan2Flag = TRUE; |
| 319 | } |
| 320 | |
| 321 | if (PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue == |
| 322 | PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit) { |
| 323 | PstateMaxValEquToPstateHtcLimitFlag = TRUE; |
| 324 | } |
| 325 | |
| 326 | if (PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit == 1) { |
| 327 | AtLeastOneCoreHasPstateHtcLimitEquToOneFlag = TRUE; |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | // Do general setup of flags, that we may use later |
| 332 | // Implementation of (1_b) |
| 333 | if (TempFlag1 && TempFlag2) { |
| 334 | // |
| 335 | //Processors with only one enabled P-state (F3xDC[PstateMaxVal]=000b) cannot be mixed in a system with |
| 336 | //processors with more than one enabled P-state (F3xDC[PstateMaxVal]!=000b). |
| 337 | // |
| 338 | PStateBufferPtr[0].InitStruct = 1; |
| 339 | PStateBufferPtr[0].CreateAcpiTables = 0; |
| 340 | PutAllCoreInPState0 (PStateBufferPtr, StdHeader); |
| 341 | return AGESA_UNSUPPORTED; |
| 342 | } else if (TempFlag1 && !TempFlag2) { |
| 343 | // |
| 344 | //all processors have only 1 enabled P-state |
| 345 | // |
| 346 | AllCoreHaveMaxOnePStateFlag = TRUE; |
| 347 | PStateBufferPtr[0].OnlyOneEnabledPState = TRUE; |
| 348 | } |
| 349 | |
| 350 | // Processors with F3xE8[HTC_CAPABLE] = 1 can not be |
| 351 | // mixed in system with processors with F3xE8[HTC_CAPABLE] = 0. |
| 352 | if (TempFlag3 && TempFlag4) { |
| 353 | PStateBufferPtr[0].InitStruct = 1; |
| 354 | PStateBufferPtr[0].CreateAcpiTables = 0; |
| 355 | PutAllCoreInPState0 (PStateBufferPtr, StdHeader); |
| 356 | return AGESA_UNSUPPORTED; |
| 357 | } |
| 358 | |
| 359 | if (TempFlag3) { |
| 360 | // |
| 361 | //If code run to here means that all processors do not have HTC_CAPABLE. |
| 362 | // |
| 363 | AllCoresHaveHtcCapEquToZeroFlag = TRUE; |
| 364 | } |
| 365 | |
| 366 | //-------------------------------------------------------------------------------- |
| 367 | // S T E P - 2 |
| 368 | //-------------------------------------------------------------------------------- |
| 369 | // Now run the PState Leveling Algorithm which will create mixed CPU P-State |
| 370 | // Tables. |
| 371 | // Follow the algorithm in the latest BKDG |
| 372 | // ------------------------------------------------------------------------------- |
| 373 | // Match P0 CPU COF for all CPU cores to the lowest P0 CPU COF value in the |
| 374 | // coherent fabric, and match P0 power for all CPU cores to the highest P0 power |
| 375 | // value in the coherent fabric. |
| 376 | // 2_a) If all processors have only 1 enabled P-State BIOS must write the |
| 377 | // appropriate CpuFid value resulting from the matched CPU COF to all |
| 378 | // copies of MSRC001_0070[CpuFid], and exit the sequence (No further |
| 379 | // steps are executed) |
| 380 | //-------------------------------------------------------------------------------- |
| 381 | // Identify the lowest P0 Frequency and maximum P0 Power |
| 382 | TempVar_d = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSwP0Array[0]].CoreFreq; |
| 383 | TempVar_e = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSwP0Array[0]].Power; |
| 384 | TempVar_a = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSwP0Array[0]].IddValue; |
| 385 | TempVar_b = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSwP0Array[0]].IddDiv; |
| 386 | |
| 387 | for (i = 0; i < LogicalSocketCount; i++) { |
| 388 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 389 | if (TempVar_d > PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].CoreFreq) { |
| 390 | TempVar_d = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].CoreFreq; |
| 391 | } |
| 392 | |
| 393 | if (TempVar_e < PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].Power) { |
| 394 | TempVar_e = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].Power; |
| 395 | TempVar_a = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].IddValue; |
| 396 | TempVar_b = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].IddDiv; |
| 397 | } |
| 398 | } |
| 399 | |
| 400 | // Set P0 Frequency and Power for all CPUs |
| 401 | for (i = 0; i < LogicalSocketCount; i++) { |
| 402 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 403 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].CoreFreq = TempVar_d; |
| 404 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].Power = TempVar_e; |
| 405 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].IddValue = TempVar_a; |
| 406 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSwP0Array[i]].IddDiv = TempVar_b; |
| 407 | } |
| 408 | |
| 409 | // 2_a) |
| 410 | if (!AllCoreHaveMaxOnePStateFlag) { |
| 411 | //-------------------------------------------------------------------------- |
| 412 | // STEP - 3 |
| 413 | //-------------------------------------------------------------------------- |
| 414 | // Match the CPU COF and power for P-states used by HTC. Skip to step 4 |
| 415 | // is any processor reports F3xE8[HTC_Capable] = 0; |
| 416 | // 3_a) Set F3x64[HtcPstateLimit] = 001b and F3x68[StcPstateLimit] = 001b for |
| 417 | // processors with F3x64[HtcPstateLimit] = 000b. |
| 418 | // 3_b) Identify the lowest CPU COF for all processors in the P-state |
| 419 | // pointed to by [The Hardware Thermal Control (HTC) Register] |
| 420 | // F3x64[HtcPstateLimit] |
| 421 | // 3_c) Modify the CPU COF pointed to by [The Hardware Thermal Control |
| 422 | // (HTC) Register] F3x64[HtcPstateLimit] for all processors to the |
| 423 | // previously identified lowest CPU COF value. |
| 424 | // 3_d) Identify the highest power for all processors in the P-state |
| 425 | // pointed to by [The Hardware Thermal Control (HTC) Register] |
| 426 | // F3x64[HtcPstateLimit]. |
| 427 | // 3_e) Modify the power pointed to by [The Hardware Thermal Control (HTC) |
| 428 | // Register] F3x64[HtcPstateLimit] to the previously identified |
| 429 | // highest power value. |
| 430 | if (!AllCoresHaveHtcCapEquToZeroFlag) { |
| 431 | // 3_a) |
| 432 | for (i = 0; i < LogicalSocketCount; i++) { |
| 433 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 434 | if (PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit == 0) { |
| 435 | // To Be Done (Set Htc and Stc PstateLimit values) |
| 436 | // for this CPU (using PCI address space) |
| 437 | for (k = 0; k < (UINT8)GetPlatformNumberOfModules (); k++) { |
| 438 | if (GetPciAddress (StdHeader, PStateBufferPtrTmp->SocketNumber, k, &PciAddress, &Status)) { |
| 439 | // Set F3x64[HtcPstateLimit] = 001b |
| 440 | PciAddress.Address.Function = FUNC_3; |
| 441 | PciAddress.Address.Register = HARDWARE_THERMAL_CTRL_REG; |
| 442 | LibAmdPciRead (AccessWidth32, PciAddress, &TempVar_d, StdHeader); |
| 443 | // Bits 30:28 |
| 444 | TempVar_d = (TempVar_d & 0x8FFFFFFF) | 0x10000000; |
| 445 | LibAmdPciWrite (AccessWidth32, PciAddress, &TempVar_d, StdHeader); |
| 446 | |
| 447 | // Set F3x68[StcPstateLimit] = 001b |
| 448 | PciAddress.Address.Register = SOFTWARE_THERMAL_CTRL_REG; |
| 449 | LibAmdPciRead (AccessWidth32, PciAddress, &TempVar_d, StdHeader); |
| 450 | // Bits 28:30 |
| 451 | TempVar_d = (TempVar_d & 0x8FFFFFFF) | 0x10000000; |
| 452 | LibAmdPciWrite (AccessWidth32, PciAddress, &TempVar_d, StdHeader); |
| 453 | } |
| 454 | } |
| 455 | // Set LocalBuffer |
| 456 | PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit = 1; |
| 457 | if ((PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue - 1) < 2) { |
| 458 | PstateMaxValMinusHtcPstateLimitLessThan2Flag = TRUE; |
| 459 | } |
| 460 | |
| 461 | if (PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue == 1) { |
| 462 | PstateMaxValEquToPstateHtcLimitFlag = TRUE; |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | if (PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit == 1) { |
| 467 | AtLeastOneCoreHasPstateHtcLimitEquToOneFlag = TRUE; |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | // 3_b) and 3_d) |
| 472 | TempVar_a = PStateBufferPtr[0].PStateCoreStruct[0].HtcPstateLimit; |
| 473 | TempVar_d = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].CoreFreq; |
| 474 | TempVar_e = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].Power; |
| 475 | TempVar_f = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].IddValue; |
| 476 | TempVar_c = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].IddDiv; |
| 477 | for (i = 0; i < LogicalSocketCount; i++) { |
| 478 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 479 | for (k = 0; k < 1; k++) { |
| 480 | TempVar_b = PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit; |
| 481 | if (TempVar_d > PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].CoreFreq) { |
| 482 | TempVar_d = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].CoreFreq; |
| 483 | } |
| 484 | |
| 485 | if (TempVar_e < PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].Power) { |
| 486 | TempVar_e = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].Power; |
| 487 | TempVar_f = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].IddValue; |
| 488 | TempVar_c = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].IddDiv; |
| 489 | } |
| 490 | } |
| 491 | } |
| 492 | |
| 493 | // 3_c) and 3_e) |
| 494 | for (i = 0; i < LogicalSocketCount; i++) { |
| 495 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 496 | TempVar_a = PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit; |
| 497 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].CoreFreq = TempVar_d; |
| 498 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].Power = TempVar_e; |
| 499 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].IddValue = TempVar_f; |
| 500 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].IddDiv = TempVar_c; |
| 501 | } |
| 502 | } // if(AllCoresHaveHtcCapEquToZeroFlag) |
| 503 | |
| 504 | |
| 505 | //-------------------------------------------------------------------------- |
| 506 | // STEP - 4 |
| 507 | //-------------------------------------------------------------------------- |
| 508 | // Match the CPU COF and power for the lowest performance P-state: |
| 509 | // 4_a) If F3xDC[PstateMaxVal] = F3x64[HtcPstateLimit] for any processor, |
| 510 | // set PstateEn = 0 for all the P-states greater than |
| 511 | // F3x64[HtcPstateLimit] for all processors. |
| 512 | // 4_b) Identify the lowest CPU COF for all processors in the P-state |
| 513 | // pointed to by F3xDC[PstateMaxVal]. |
| 514 | // 4_c) Modify the CPU COF for all processors in the P-state pointed to by |
| 515 | // F3xDC[PstateMaxVal] to the previously identified lowest CPU COF |
| 516 | // value. |
| 517 | // 4_d) Identify the highest power for all processors in the P-state |
| 518 | // pointed to by F3xDC[PstateMaxVal]. |
| 519 | // 4_e) Modify the power for all processors in the P-state pointed to by |
| 520 | // F3xDC[PstateMaxVal] to the previously identified highest power |
| 521 | // value. |
| 522 | |
| 523 | // 4_a) |
| 524 | if (PstateMaxValEquToPstateHtcLimitFlag) { |
| 525 | for (i = 0; i < LogicalSocketCount; i++) { |
| 526 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 527 | TempVar_b = PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit + 1; |
| 528 | for (k = TempVar_b; k <= PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue; k++) { |
| 529 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[k].PStateEnable = 0; |
| 530 | } |
| 531 | //-------------------------------------------------------------------------- |
| 532 | // STEP - 5 |
| 533 | //-------------------------------------------------------------------------- |
| 534 | // 5_a) Modify F3xDC[PstateMaxVal] to indicate the lowest performance |
| 535 | // P-state with PstateEn set for each processor (Step 4 can disable |
| 536 | // P-states pointed to by F3xDC[PstateMaxVal]) |
| 537 | |
| 538 | // Use this value of HtcPstateLimit to program the |
| 539 | // F3xDC[pStateMaxValue] |
| 540 | TempVar_e = PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit; |
| 541 | TempVar_e <<= 8; |
| 542 | // Bits 10:8 |
| 543 | |
| 544 | for (m = 0; m < (UINT8)GetPlatformNumberOfModules (); m++) { |
| 545 | if (GetPciAddress (StdHeader, PStateBufferPtrTmp->SocketNumber, m, &PciAddress, &Status)) { |
| 546 | PciAddress.Address.Function = FUNC_3; |
| 547 | PciAddress.Address.Register = CLOCK_POWER_TIMING_CTRL2_REG; |
| 548 | LibAmdPciRead (AccessWidth32, PciAddress, &TempVar_d, StdHeader); |
| 549 | TempVar_d = (TempVar_d & 0xFFFFF8FF) | TempVar_e; |
| 550 | LibAmdPciWrite (AccessWidth32, PciAddress, &TempVar_d, StdHeader); |
| 551 | } |
| 552 | }//End of step 5 |
| 553 | } |
| 554 | }// End of 4_a) |
| 555 | |
| 556 | // 4_b) and 4_d) |
| 557 | TempVar_a = PStateBufferPtr[0].PStateCoreStruct[0].PStateMaxValue; |
| 558 | TempVar_d = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].CoreFreq; |
| 559 | TempVar_e = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].Power; |
| 560 | TempVar_f = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].IddValue; |
| 561 | TempVar_c = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempVar_a].IddDiv; |
| 562 | |
| 563 | for (i = 0; i < LogicalSocketCount; i++) { |
| 564 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 565 | TempVar_b = PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue; |
| 566 | if (TempVar_d > |
| 567 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].CoreFreq) { |
| 568 | TempVar_d = |
| 569 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].CoreFreq; |
| 570 | } |
| 571 | |
| 572 | if (TempVar_e < PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].Power) { |
| 573 | TempVar_e = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].Power; |
| 574 | TempVar_f = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].IddValue; |
| 575 | TempVar_c = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_b].IddDiv; |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | // 4_c) and 4_e) |
| 580 | for (i = 0; i < LogicalSocketCount; i++) { |
| 581 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 582 | TempVar_a = PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue; |
| 583 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].CoreFreq = TempVar_d; |
| 584 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].Power = TempVar_e; |
| 585 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].IddValue = TempVar_f; |
| 586 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempVar_a].IddDiv = TempVar_c; |
| 587 | } |
| 588 | |
| 589 | |
| 590 | //-------------------------------------------------------------------------- |
| 591 | // STEP - 6 |
| 592 | //-------------------------------------------------------------------------- |
| 593 | // Match the CPU COF and power for upper intermediate performance |
| 594 | // P-state(s): |
| 595 | // Upper intermediate PStates = PStates between (Not including) P0 and |
| 596 | // F3x64[HtcPstateLimit] |
| 597 | // 6_a) If F3x64[HtcPstateLimit] = 001b for any processor, set PstateEn = 0 |
| 598 | // for enabled upper intermediate P-states for all processors with |
| 599 | // F3x64[HtcPstateLimit] > 001b and skip the remaining actions for |
| 600 | // this numbered step. |
| 601 | // 6_b) Define each of the available upper intermediate P-states; for each |
| 602 | // processor concurrently evaluate the following loop; when any |
| 603 | // processor falls out of the loop (runs out of available upper |
| 604 | // intermediate Pstates) all other processors have their remaining |
| 605 | // upper intermediate P-states invalidated (PstateEn = 0); |
| 606 | // for (i = F3x64[HtcPstateLimit] - 1; i > 0; i--) |
| 607 | // - Identify the lowest CPU COF for P(i). |
| 608 | // - Identify the highest power for P(i). |
| 609 | // - Modify P(i) CPU COF for all processors to the previously |
| 610 | // identified lowest CPU COF value. |
| 611 | // - Modify P(i) power for all processors to the previously |
| 612 | // identified highest power value. |
| 613 | |
| 614 | // 6_a) |
| 615 | if (AtLeastOneCoreHasPstateHtcLimitEquToOneFlag) { |
| 616 | for (i = 0; i < LogicalSocketCount; i++) { |
| 617 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 618 | for (k = TempSwP0Array[i] + 1; k < (PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit); k++) { |
| 619 | if (PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit > 1) { |
| 620 | // Make a function call to clear the |
| 621 | // structure values |
| 622 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[k].PStateEnable = 0; |
| 623 | } |
| 624 | } |
| 625 | } |
| 626 | } |
| 627 | // 6_b) |
| 628 | else { |
| 629 | // Identify Lowest Frequency and Highest Power |
| 630 | TotalIterations = 0; |
| 631 | TempFlag1 = TRUE; |
| 632 | |
| 633 | for (i = 0; i < LogicalSocketCount; i++) { |
| 634 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 635 | TempSocketPiArray[i] = PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit - 1; |
| 636 | } |
| 637 | |
| 638 | do { |
| 639 | //For first socket, try to find a candidate |
| 640 | if (TempSocketPiArray[0] != TempSwP0Array[0]) { |
| 641 | while (PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].PStateEnable == 0) { |
| 642 | TempSocketPiArray[0] = TempSocketPiArray[0] - 1; |
| 643 | if (TempSocketPiArray[0] == TempSwP0Array[0]) { |
| 644 | TempFlag1 = FALSE; |
| 645 | break; |
| 646 | } |
| 647 | } |
| 648 | } else { |
| 649 | TempFlag1 = FALSE; |
| 650 | } |
| 651 | if (TempFlag1) { |
| 652 | TempFreqArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].CoreFreq; |
| 653 | TempPowerArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].Power; |
| 654 | TempIddValueArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].IddValue; |
| 655 | TempIddDivArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].IddDiv; |
| 656 | |
| 657 | //Try to find next candidate |
| 658 | for (i = 1; i < LogicalSocketCount; i++) { |
| 659 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 660 | if (TempSocketPiArray[i] != TempSwP0Array[i]) { |
| 661 | while (PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].PStateEnable == 0) { |
| 662 | TempSocketPiArray[i]--; |
| 663 | if (TempSocketPiArray[i] == TempSwP0Array[i]) { |
| 664 | TempFlag1 = FALSE; |
| 665 | break; |
| 666 | } |
| 667 | }//end while |
| 668 | } else { |
| 669 | TempFlag1 = FALSE; |
| 670 | } |
| 671 | |
| 672 | } //end for LogicalSocketCount |
| 673 | } |
| 674 | |
| 675 | if (TempFlag1) { |
| 676 | for (i = 0; i < LogicalSocketCount; i++) { |
| 677 | // |
| 678 | //Compare |
| 679 | // |
| 680 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 681 | if (TempFreqArray[TotalIterations] > PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].CoreFreq) { |
| 682 | TempFreqArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].CoreFreq; |
| 683 | } |
| 684 | |
| 685 | if (TempPowerArray[TotalIterations] < PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].Power) { |
| 686 | TempPowerArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].Power; |
| 687 | TempIddValueArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddValue; |
| 688 | TempIddDivArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddDiv; |
| 689 | } |
| 690 | } |
| 691 | // Modify (Pi) CPU COF and Power for all the CPUs |
| 692 | for (i = 0; i < LogicalSocketCount; i++) { |
| 693 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 694 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].CoreFreq = TempFreqArray[TotalIterations]; |
| 695 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].Power = TempPowerArray[TotalIterations]; |
| 696 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddValue = TempIddValueArray[TotalIterations]; |
| 697 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddDiv = TempIddDivArray[TotalIterations]; |
| 698 | TempSocketPiArray[i] = TempSocketPiArray[i] - 1; |
| 699 | } |
| 700 | } else { |
| 701 | for (i = 0; i < LogicalSocketCount; i++) { |
| 702 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 703 | for (m = TempSocketPiArray[i]; m > TempSwP0Array[i]; m--) { |
| 704 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[m].PStateEnable = 0; |
| 705 | } |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | TotalIterations++; |
| 710 | } while (TempFlag1); |
| 711 | |
| 712 | } // else |
| 713 | |
| 714 | //-------------------------------------------------------------------------- |
| 715 | // STEP - 7 |
| 716 | //-------------------------------------------------------------------------- |
| 717 | // Match the CPU COF and power for lower intermediate performance P - state(s) |
| 718 | // Lower Intermediate Pstates = Pstates between (not including) |
| 719 | // F3x64[HtcPstateLimit] and F3xDC[PstateMaxVal] |
| 720 | // 7_a) If F3xDC[PstateMaxVal] - F3x64[HtcPstateLimit] < 2 for any |
| 721 | // processor, set PstateEn = 0 for enabled lower intermediate P - states |
| 722 | // for all processors with (F3xDC[PstateMaxVal] - |
| 723 | // F3x64[HtcPstateLimit] > 1) and skip the remaining actions for this |
| 724 | // numbered step. |
| 725 | // 7_b) Define each of the available lower intermediate P-states; for each |
| 726 | // processor concurrently evaluate the following loop; when any |
| 727 | // processor falls out of the loop (runs out of available lower |
| 728 | // intermediate Pstates) all other processors have their remaining |
| 729 | // lower intermediate P-states invalidated (PstateEn = 0); |
| 730 | // for (i = F3xDC[PstateMaxVal]-1; i > F3x64[HtcPstateLimit]; i--) |
| 731 | // - Identify the lowest CPU COF for P-states between |
| 732 | // (not including) F3x64[HtcPstateLimit] and P(i). |
| 733 | // - Identify the highest power for P-states between |
| 734 | // (not including) F3x64[HtcPstateLimit] and P(i). |
| 735 | // - Modify P(i) CPU COF for all processors to the previously |
| 736 | // identified lowest CPU COF value. |
| 737 | // - Modify P(i) power for all processors to the previously |
| 738 | // identified highest power value. |
| 739 | |
| 740 | |
| 741 | // 7_a) |
| 742 | if (PstateMaxValMinusHtcPstateLimitLessThan2Flag) { |
| 743 | for (i = 0; i < LogicalSocketCount; i++) { |
| 744 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 745 | |
| 746 | for (k = PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue - 1; |
| 747 | k > PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit; |
| 748 | k--) { |
| 749 | if ((PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue - |
| 750 | PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit) > 1) { |
| 751 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[k].PStateEnable = 0; |
| 752 | } |
| 753 | } |
| 754 | } |
| 755 | } |
| 756 | |
| 757 | // 7_b) |
| 758 | else { |
| 759 | // Identify Lowest Frequency and Highest Power |
| 760 | |
| 761 | TotalIterations = 0; |
| 762 | TempFlag1 = TRUE; |
| 763 | |
| 764 | for (i = 0; i < LogicalSocketCount; i++) { |
| 765 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 766 | TempSocketPiArray[i] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateMaxValue - 1; |
| 767 | } |
| 768 | |
| 769 | do { |
| 770 | //For first socket, try to find a candidate |
| 771 | if (TempSocketPiArray[0] != PStateBufferPtr[0].PStateCoreStruct[0].HtcPstateLimit) { |
| 772 | while (PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].PStateEnable == 0) { |
| 773 | TempSocketPiArray[0] = TempSocketPiArray[0] - 1; |
| 774 | if (TempSocketPiArray[0] == PStateBufferPtr[0].PStateCoreStruct[0].HtcPstateLimit) { |
| 775 | TempFlag1 = FALSE; |
| 776 | break; |
| 777 | } |
| 778 | } |
| 779 | } else { |
| 780 | TempFlag1 = FALSE; |
| 781 | } |
| 782 | if (TempFlag1) { |
| 783 | TempFreqArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].CoreFreq; |
| 784 | TempPowerArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].Power; |
| 785 | TempIddValueArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].IddValue; |
| 786 | TempIddDivArray[TotalIterations] = PStateBufferPtr[0].PStateCoreStruct[0].PStateStruct[TempSocketPiArray[0]].IddDiv; |
| 787 | |
| 788 | //Try to find next candidate |
| 789 | for (i = 1; i < LogicalSocketCount; i++) { |
| 790 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 791 | if (TempSocketPiArray[i] != PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit) { |
| 792 | while (PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].PStateEnable == 0) { |
| 793 | TempSocketPiArray[i]--; |
| 794 | if (TempSocketPiArray[i] == PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit) { |
| 795 | TempFlag1 = FALSE; |
| 796 | break; |
| 797 | } |
| 798 | }//end while |
| 799 | } else { |
| 800 | TempFlag1 = FALSE; |
| 801 | } |
| 802 | } //end for LogicalSocketCount |
| 803 | } |
| 804 | |
| 805 | if (TempFlag1) { |
| 806 | for (i = 0; i < LogicalSocketCount; i++) { |
| 807 | // |
| 808 | //Compare |
| 809 | // |
| 810 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 811 | if (TempFreqArray[TotalIterations] > PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].CoreFreq) { |
| 812 | TempFreqArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].CoreFreq; |
| 813 | } |
| 814 | if (TempPowerArray[TotalIterations] < PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].Power) { |
| 815 | TempPowerArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].Power; |
| 816 | TempIddValueArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddValue; |
| 817 | TempIddDivArray[TotalIterations] = PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddDiv; |
| 818 | } |
| 819 | } |
| 820 | // Modify (Pi) CPU COF and Power for all the CPUs |
| 821 | for (i = 0; i < LogicalSocketCount; i++) { |
| 822 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 823 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].CoreFreq = TempFreqArray[TotalIterations]; |
| 824 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].Power = TempPowerArray[TotalIterations]; |
| 825 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddValue = TempIddValueArray[TotalIterations]; |
| 826 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[TempSocketPiArray[i]].IddDiv = TempIddDivArray[TotalIterations]; |
| 827 | TempSocketPiArray[i] = TempSocketPiArray[i] - 1; |
| 828 | } |
| 829 | } else { |
| 830 | for (i = 0; i < LogicalSocketCount; i++) { |
| 831 | CpuGetPStateLevelStructure (&PStateBufferPtrTmp, PStateStrucPtr, i, StdHeader); |
| 832 | for (m = TempSocketPiArray[i]; m > PStateBufferPtrTmp->PStateCoreStruct[0].HtcPstateLimit; m--) { |
| 833 | PStateBufferPtrTmp->PStateCoreStruct[0].PStateStruct[m].PStateEnable = 0; |
| 834 | } |
| 835 | } |
| 836 | } |
| 837 | TotalIterations++; |
| 838 | } while (TempFlag1); |
| 839 | } // else |
| 840 | } // if(!AllCoreHaveMaxOnePStateFlag) |
| 841 | |
| 842 | PStateBufferPtr[0].InitStruct = 1; |
| 843 | } // CurrentCore |
| 844 | |
| 845 | |
| 846 | // Update the pState MSRs |
| 847 | // This can be done only by individual core |
| 848 | StartPstateMsrModify (PStateStrucPtr, StdHeader); |
| 849 | |
| 850 | //---------------------------------------------------------------------------------- |
| 851 | // STEP - 8 |
| 852 | //---------------------------------------------------------------------------------- |
| 853 | // Place all cores into a valid COF and VID configuration corresponding to an |
| 854 | // enabled P-state: |
| 855 | // 8_a) Select an enabled P-state != to the P-state pointed to by |
| 856 | // MSRC001_0063[CurPstate] for each core. |
| 857 | // 8_b) Transition all cores to the selected P-states by writing the Control value |
| 858 | // from the_PSS object corresponding to the selected P-state to |
| 859 | // MSRC001_0062[PstateCmd]. |
| 860 | // 8_c) Wait for all cores to report the Status value from the _PSS object |
| 861 | // corresponding to the selected P-state in MSRC001_0063[CurPstate]. |
| 862 | // |
| 863 | PutAllCoreInPState0 (PStateBufferPtr, StdHeader); |
| 864 | |
| 865 | return AGESA_SUCCESS; |
| 866 | } |
| 867 | |
| 868 | |
| 869 | /*---------------------------------------------------------------------------- |
| 870 | * LOCAL FUNCTIONS |
| 871 | * |
| 872 | *---------------------------------------------------------------------------- |
| 873 | */ |
| 874 | |
| 875 | /** |
| 876 | *--------------------------------------------------------------------------------------- |
| 877 | * |
| 878 | * PutAllCoreInPState0 |
| 879 | * |
| 880 | * Description: |
| 881 | * This function will put core pstate to p0. |
| 882 | * |
| 883 | * Parameters: |
| 884 | * @param[in,out] *PStateBufferPtr |
| 885 | * @param[in] *StdHeader |
| 886 | * |
| 887 | * @retval AGESA_STATUS |
| 888 | * |
| 889 | *--------------------------------------------------------------------------------------- |
| 890 | **/ |
| 891 | AGESA_STATUS |
| 892 | PutAllCoreInPState0 ( |
| 893 | IN OUT PSTATE_LEVELING *PStateBufferPtr, |
| 894 | IN AMD_CONFIG_PARAMS *StdHeader |
| 895 | ) |
| 896 | { |
| 897 | AP_TASK TaskPtr; |
| 898 | UINT32 BscSocket; |
| 899 | UINT32 Ignored; |
| 900 | UINT32 BscCoreNum; |
| 901 | UINT32 Core; |
| 902 | UINT32 Socket; |
| 903 | UINT32 NumberOfSockets; |
| 904 | UINT32 NumberOfCores; |
| 905 | AGESA_STATUS IgnoredSts; |
| 906 | |
| 907 | TaskPtr.FuncAddress.PfApTaskI = PutCoreInPState0; |
| 908 | TaskPtr.DataTransfer.DataSizeInDwords = SIZE_IN_DWORDS (PSTATE_LEVELING); |
| 909 | TaskPtr.ExeFlags = WAIT_FOR_CORE; |
| 910 | TaskPtr.DataTransfer.DataPtr = PStateBufferPtr; |
| 911 | TaskPtr.DataTransfer.DataTransferFlags = DATA_IN_MEMORY; |
| 912 | |
| 913 | IdentifyCore (StdHeader, &BscSocket, &Ignored, &BscCoreNum, &IgnoredSts); |
| 914 | NumberOfSockets = GetPlatformNumberOfSockets (); |
| 915 | |
| 916 | PutCoreInPState0 (PStateBufferPtr, StdHeader); |
| 917 | |
| 918 | for (Socket = 0; Socket < NumberOfSockets; Socket++) { |
| 919 | if (GetActiveCoresInGivenSocket (Socket, &NumberOfCores, StdHeader)) { |
| 920 | for (Core = 0; Core < NumberOfCores; Core++) { |
| 921 | if ((Socket != (UINT32) BscSocket) || (Core != (UINT32) BscCoreNum)) { |
| 922 | ApUtilRunCodeOnSocketCore ((UINT8) Socket, (UINT8) Core, &TaskPtr, StdHeader); |
| 923 | } |
| 924 | } |
| 925 | } |
| 926 | } |
| 927 | |
| 928 | return AGESA_SUCCESS; |
| 929 | } |
| 930 | |
| 931 | /** |
| 932 | *--------------------------------------------------------------------------------------- |
| 933 | * |
| 934 | * CorePstateRegModify |
| 935 | * |
| 936 | * Description: |
| 937 | * This function will setting the Pstate MSR to each APs base on Pstate Buffer. |
| 938 | * Note: This function should be called for every core in the system. |
| 939 | * |
| 940 | * Parameters: |
| 941 | * @param[in,out] *CpuAmdPState |
| 942 | * @param[in] *StdHeader |
| 943 | * |
| 944 | * @retval VOID |
| 945 | * |
| 946 | *--------------------------------------------------------------------------------------- |
| 947 | **/ |
| 948 | VOID |
| 949 | CorePstateRegModify ( |
| 950 | IN VOID *CpuAmdPState, |
| 951 | IN AMD_CONFIG_PARAMS *StdHeader |
| 952 | ) |
| 953 | { |
| 954 | PSTATE_CPU_FAMILY_SERVICES *FamilySpecificServices; |
| 955 | FamilySpecificServices = NULL; |
| 956 | |
| 957 | GetFeatureServicesOfCurrentCore (&PstateFamilyServiceTable, (CONST VOID **)&FamilySpecificServices, StdHeader); |
| 958 | ASSERT (FamilySpecificServices != NULL) |
| 959 | FamilySpecificServices->SetPStateLevelReg (FamilySpecificServices, (S_CPU_AMD_PSTATE *) CpuAmdPState, StdHeader); |
| 960 | } |
| 961 | |
| 962 | |
| 963 | /*---------------------------------------------------------------------------------------*/ |
| 964 | /** |
| 965 | * This function will set msr on all cores of all nodes. |
| 966 | * |
| 967 | * @param[in] CpuAmdPState Pointer to S_CPU_AMD_PSTATE. |
| 968 | * @param[in] StdHeader Header for library and services. |
| 969 | * |
| 970 | * @retval AGESA_SUCCESS Always succeeds |
| 971 | * |
| 972 | */ |
| 973 | AGESA_STATUS |
| 974 | StartPstateMsrModify ( |
| 975 | IN S_CPU_AMD_PSTATE *CpuAmdPState, |
| 976 | IN AMD_CONFIG_PARAMS *StdHeader |
| 977 | ) |
| 978 | { |
| 979 | AP_TASK TaskPtr; |
| 980 | UINT32 BscSocket; |
| 981 | UINT32 Ignored; |
| 982 | UINT32 BscCoreNum; |
| 983 | UINT32 Core; |
| 984 | UINT32 Socket; |
| 985 | UINT32 NumberOfSockets; |
| 986 | UINT32 NumberOfCores; |
| 987 | AGESA_STATUS IgnoredSts; |
| 988 | |
| 989 | TaskPtr.FuncAddress.PfApTaskI = CorePstateRegModify; |
| 990 | TaskPtr.DataTransfer.DataSizeInDwords = (UINT16) (CpuAmdPState->SizeOfBytes / 4 + 1); |
| 991 | TaskPtr.ExeFlags = WAIT_FOR_CORE; |
| 992 | TaskPtr.DataTransfer.DataPtr = CpuAmdPState; |
| 993 | TaskPtr.DataTransfer.DataTransferFlags = DATA_IN_MEMORY; |
| 994 | |
| 995 | IdentifyCore (StdHeader, &BscSocket, &Ignored, &BscCoreNum, &IgnoredSts); |
| 996 | NumberOfSockets = GetPlatformNumberOfSockets (); |
| 997 | |
| 998 | CorePstateRegModify (CpuAmdPState, StdHeader); |
| 999 | |
| 1000 | for (Socket = 0; Socket < NumberOfSockets; Socket++) { |
| 1001 | if (GetActiveCoresInGivenSocket (Socket, &NumberOfCores, StdHeader)) { |
| 1002 | for (Core = 0; Core < NumberOfCores; Core++) { |
| 1003 | if ((Socket != (UINT32) BscSocket) || (Core != (UINT32) BscCoreNum)) { |
| 1004 | ApUtilRunCodeOnSocketCore ((UINT8) Socket, (UINT8) Core, &TaskPtr, StdHeader); |
| 1005 | } |
| 1006 | } |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | return AGESA_SUCCESS; |
| 1011 | } |
| 1012 | |
| 1013 | |
| 1014 | /** |
| 1015 | *--------------------------------------------------------------------------------------- |
| 1016 | * |
| 1017 | * CpuGetPStateLevelStructure |
| 1018 | * |
| 1019 | * Description: |
| 1020 | * Based on the LogicalSocketNumber, this function will return a pointer |
| 1021 | * point to the accurate offset of the PSTATE_LEVELING structure. |
| 1022 | * |
| 1023 | * Parameters: |
| 1024 | * @param[in,out] *PStateBufferPtr |
| 1025 | * @param[in] *CpuAmdPState |
| 1026 | * @param[in] LogicalSocketNumber |
| 1027 | * @param[in] *StdHeader |
| 1028 | * |
| 1029 | * @retval VOID |
| 1030 | * |
| 1031 | *--------------------------------------------------------------------------------------- |
| 1032 | **/ |
| 1033 | AGESA_STATUS |
| 1034 | CpuGetPStateLevelStructure ( |
| 1035 | OUT PSTATE_LEVELING **PStateBufferPtr, |
| 1036 | IN S_CPU_AMD_PSTATE *CpuAmdPState, |
| 1037 | IN UINT32 LogicalSocketNumber, |
| 1038 | IN AMD_CONFIG_PARAMS *StdHeader |
| 1039 | ) |
| 1040 | { |
| 1041 | PSTATE_LEVELING *PStateBufferPtrTmp; |
| 1042 | UINT32 i; |
| 1043 | |
| 1044 | if (LogicalSocketNumber > CpuAmdPState->TotalSocketInSystem) { |
| 1045 | return AGESA_UNSUPPORTED; |
| 1046 | } |
| 1047 | |
| 1048 | PStateBufferPtrTmp = CpuAmdPState->PStateLevelingStruc; |
| 1049 | |
| 1050 | for (i = 1; i <= LogicalSocketNumber; i++) { |
| 1051 | PStateBufferPtrTmp = (PSTATE_LEVELING *) ((UINT8 *) PStateBufferPtrTmp + ((UINTN) PStateBufferPtrTmp->PStateLevelingSizeOfBytes)); |
| 1052 | } |
| 1053 | |
| 1054 | *PStateBufferPtr = PStateBufferPtrTmp; |
| 1055 | |
| 1056 | return AGESA_SUCCESS; |
| 1057 | } |
| 1058 | |
| 1059 | |
| 1060 | /** |
| 1061 | *--------------------------------------------------------------------------------------- |
| 1062 | * |
| 1063 | * PutCoreInPState0 |
| 1064 | * |
| 1065 | * Description: |
| 1066 | * This function will take the CPU core into P0 |
| 1067 | * |
| 1068 | * Parameters: |
| 1069 | * @param[in] *PStateBuffer |
| 1070 | * @param[in] *StdHeader |
| 1071 | * |
| 1072 | * @retval VOID |
| 1073 | * |
| 1074 | *--------------------------------------------------------------------------------------- |
| 1075 | **/ |
| 1076 | VOID |
| 1077 | STATIC |
| 1078 | PutCoreInPState0 ( |
| 1079 | IN VOID *PStateBuffer, |
| 1080 | IN AMD_CONFIG_PARAMS *StdHeader |
| 1081 | ) |
| 1082 | { |
| 1083 | CPU_SPECIFIC_SERVICES *FamilySpecificServices; |
| 1084 | PSTATE_LEVELING *PStateBufferPtr; |
| 1085 | |
| 1086 | PStateBufferPtr = (PSTATE_LEVELING *) PStateBuffer; |
| 1087 | |
| 1088 | if ((PStateBufferPtr[0].SetPState0 == PSTATE_FLAG_1 ) || |
| 1089 | (PStateBufferPtr[0].SetPState0 == PSTATE_FLAG_2)) { |
| 1090 | return; |
| 1091 | } |
| 1092 | |
| 1093 | GetCpuServicesOfCurrentCore ((CONST CPU_SPECIFIC_SERVICES **)&FamilySpecificServices, StdHeader); |
| 1094 | |
| 1095 | FamilySpecificServices->TransitionPstate (FamilySpecificServices, (UINT8) 0, (BOOLEAN) FALSE, StdHeader); |
| 1096 | } |