| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: dsopcode - Dispatcher support for regions and fields |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
| 44 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "acparser.h" |
| 47 | #include "amlcode.h" |
| 48 | #include "acdispat.h" |
| 49 | #include "acinterp.h" |
| 50 | #include "acnamesp.h" |
| 51 | #include "acevents.h" |
| 52 | #include "actables.h" |
| 53 | |
| 54 | #define _COMPONENT ACPI_DISPATCHER |
| 55 | ACPI_MODULE_NAME ("dsopcode" ) |
| 56 | |
| 57 | /* Local prototypes */ |
| 58 | |
| 59 | static ACPI_STATUS |
| 60 | AcpiDsInitBufferField ( |
| 61 | UINT16 AmlOpcode, |
| 62 | ACPI_OPERAND_OBJECT *ObjDesc, |
| 63 | ACPI_OPERAND_OBJECT *BufferDesc, |
| 64 | ACPI_OPERAND_OBJECT *OffsetDesc, |
| 65 | ACPI_OPERAND_OBJECT *LengthDesc, |
| 66 | ACPI_OPERAND_OBJECT *ResultDesc); |
| 67 | |
| 68 | |
| 69 | /******************************************************************************* |
| 70 | * |
| 71 | * FUNCTION: AcpiDsInitializeRegion |
| 72 | * |
| 73 | * PARAMETERS: ObjHandle - Region namespace node |
| 74 | * |
| 75 | * RETURN: Status |
| 76 | * |
| 77 | * DESCRIPTION: Front end to EvInitializeRegion |
| 78 | * |
| 79 | ******************************************************************************/ |
| 80 | |
| 81 | ACPI_STATUS |
| 82 | AcpiDsInitializeRegion ( |
| 83 | ACPI_HANDLE ObjHandle) |
| 84 | { |
| 85 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 86 | ACPI_STATUS Status; |
| 87 | |
| 88 | |
| 89 | ObjDesc = AcpiNsGetAttachedObject (ObjHandle); |
| 90 | |
| 91 | /* Namespace is NOT locked */ |
| 92 | |
| 93 | Status = AcpiEvInitializeRegion (ObjDesc, FALSE); |
| 94 | return (Status); |
| 95 | } |
| 96 | |
| 97 | |
| 98 | /******************************************************************************* |
| 99 | * |
| 100 | * FUNCTION: AcpiDsInitBufferField |
| 101 | * |
| 102 | * PARAMETERS: AmlOpcode - CreateXxxField |
| 103 | * ObjDesc - BufferField object |
| 104 | * BufferDesc - Host Buffer |
| 105 | * OffsetDesc - Offset into buffer |
| 106 | * LengthDesc - Length of field (CREATE_FIELD_OP only) |
| 107 | * ResultDesc - Where to store the result |
| 108 | * |
| 109 | * RETURN: Status |
| 110 | * |
| 111 | * DESCRIPTION: Perform actual initialization of a buffer field |
| 112 | * |
| 113 | ******************************************************************************/ |
| 114 | |
| 115 | static ACPI_STATUS |
| 116 | AcpiDsInitBufferField ( |
| 117 | UINT16 AmlOpcode, |
| 118 | ACPI_OPERAND_OBJECT *ObjDesc, |
| 119 | ACPI_OPERAND_OBJECT *BufferDesc, |
| 120 | ACPI_OPERAND_OBJECT *OffsetDesc, |
| 121 | ACPI_OPERAND_OBJECT *LengthDesc, |
| 122 | ACPI_OPERAND_OBJECT *ResultDesc) |
| 123 | { |
| 124 | UINT32 Offset; |
| 125 | UINT32 BitOffset; |
| 126 | UINT32 BitCount; |
| 127 | UINT8 FieldFlags; |
| 128 | ACPI_STATUS Status; |
| 129 | |
| 130 | |
| 131 | ACPI_FUNCTION_TRACE_PTR (DsInitBufferField, ObjDesc); |
| 132 | |
| 133 | |
| 134 | /* Host object must be a Buffer */ |
| 135 | |
| 136 | if (BufferDesc->Common.Type != ACPI_TYPE_BUFFER) |
| 137 | { |
| 138 | ACPI_ERROR ((AE_INFO, |
| 139 | "Target of Create Field is not a Buffer object - %s" , |
| 140 | AcpiUtGetObjectTypeName (BufferDesc))); |
| 141 | |
| 142 | Status = AE_AML_OPERAND_TYPE; |
| 143 | goto Cleanup; |
| 144 | } |
| 145 | |
| 146 | /* |
| 147 | * The last parameter to all of these opcodes (ResultDesc) started |
| 148 | * out as a NameString, and should therefore now be a NS node |
| 149 | * after resolution in AcpiExResolveOperands(). |
| 150 | */ |
| 151 | if (ACPI_GET_DESCRIPTOR_TYPE (ResultDesc) != ACPI_DESC_TYPE_NAMED) |
| 152 | { |
| 153 | ACPI_ERROR ((AE_INFO, |
| 154 | "(%s) destination not a NS Node [%s]" , |
| 155 | AcpiPsGetOpcodeName (AmlOpcode), |
| 156 | AcpiUtGetDescriptorName (ResultDesc))); |
| 157 | |
| 158 | Status = AE_AML_OPERAND_TYPE; |
| 159 | goto Cleanup; |
| 160 | } |
| 161 | |
| 162 | Offset = (UINT32) OffsetDesc->Integer.Value; |
| 163 | |
| 164 | /* |
| 165 | * Setup the Bit offsets and counts, according to the opcode |
| 166 | */ |
| 167 | switch (AmlOpcode) |
| 168 | { |
| 169 | case AML_CREATE_FIELD_OP: |
| 170 | |
| 171 | /* Offset is in bits, count is in bits */ |
| 172 | |
| 173 | FieldFlags = AML_FIELD_ACCESS_BYTE; |
| 174 | BitOffset = Offset; |
| 175 | BitCount = (UINT32) LengthDesc->Integer.Value; |
| 176 | |
| 177 | /* Must have a valid (>0) bit count */ |
| 178 | |
| 179 | if (BitCount == 0) |
| 180 | { |
| 181 | ACPI_ERROR ((AE_INFO, |
| 182 | "Attempt to CreateField of length zero" )); |
| 183 | Status = AE_AML_OPERAND_VALUE; |
| 184 | goto Cleanup; |
| 185 | } |
| 186 | break; |
| 187 | |
| 188 | case AML_CREATE_BIT_FIELD_OP: |
| 189 | |
| 190 | /* Offset is in bits, Field is one bit */ |
| 191 | |
| 192 | BitOffset = Offset; |
| 193 | BitCount = 1; |
| 194 | FieldFlags = AML_FIELD_ACCESS_BYTE; |
| 195 | break; |
| 196 | |
| 197 | case AML_CREATE_BYTE_FIELD_OP: |
| 198 | |
| 199 | /* Offset is in bytes, field is one byte */ |
| 200 | |
| 201 | BitOffset = 8 * Offset; |
| 202 | BitCount = 8; |
| 203 | FieldFlags = AML_FIELD_ACCESS_BYTE; |
| 204 | break; |
| 205 | |
| 206 | case AML_CREATE_WORD_FIELD_OP: |
| 207 | |
| 208 | /* Offset is in bytes, field is one word */ |
| 209 | |
| 210 | BitOffset = 8 * Offset; |
| 211 | BitCount = 16; |
| 212 | FieldFlags = AML_FIELD_ACCESS_WORD; |
| 213 | break; |
| 214 | |
| 215 | case AML_CREATE_DWORD_FIELD_OP: |
| 216 | |
| 217 | /* Offset is in bytes, field is one dword */ |
| 218 | |
| 219 | BitOffset = 8 * Offset; |
| 220 | BitCount = 32; |
| 221 | FieldFlags = AML_FIELD_ACCESS_DWORD; |
| 222 | break; |
| 223 | |
| 224 | case AML_CREATE_QWORD_FIELD_OP: |
| 225 | |
| 226 | /* Offset is in bytes, field is one qword */ |
| 227 | |
| 228 | BitOffset = 8 * Offset; |
| 229 | BitCount = 64; |
| 230 | FieldFlags = AML_FIELD_ACCESS_QWORD; |
| 231 | break; |
| 232 | |
| 233 | default: |
| 234 | |
| 235 | ACPI_ERROR ((AE_INFO, |
| 236 | "Unknown field creation opcode 0x%02X" , |
| 237 | AmlOpcode)); |
| 238 | Status = AE_AML_BAD_OPCODE; |
| 239 | goto Cleanup; |
| 240 | } |
| 241 | |
| 242 | /* Entire field must fit within the current length of the buffer */ |
| 243 | |
| 244 | if ((BitOffset + BitCount) > |
| 245 | (8 * (UINT32) BufferDesc->Buffer.Length)) |
| 246 | { |
| 247 | ACPI_ERROR ((AE_INFO, |
| 248 | "Field [%4.4s] at %u exceeds Buffer [%4.4s] size %u (bits)" , |
| 249 | AcpiUtGetNodeName (ResultDesc), |
| 250 | BitOffset + BitCount, |
| 251 | AcpiUtGetNodeName (BufferDesc->Buffer.Node), |
| 252 | 8 * (UINT32) BufferDesc->Buffer.Length)); |
| 253 | Status = AE_AML_BUFFER_LIMIT; |
| 254 | goto Cleanup; |
| 255 | } |
| 256 | |
| 257 | /* |
| 258 | * Initialize areas of the field object that are common to all fields |
| 259 | * For FieldFlags, use LOCK_RULE = 0 (NO_LOCK), |
| 260 | * UPDATE_RULE = 0 (UPDATE_PRESERVE) |
| 261 | */ |
| 262 | Status = AcpiExPrepCommonFieldObject ( |
| 263 | ObjDesc, FieldFlags, 0, BitOffset, BitCount); |
| 264 | if (ACPI_FAILURE (Status)) |
| 265 | { |
| 266 | goto Cleanup; |
| 267 | } |
| 268 | |
| 269 | ObjDesc->BufferField.BufferObj = BufferDesc; |
| 270 | |
| 271 | /* Reference count for BufferDesc inherits ObjDesc count */ |
| 272 | |
| 273 | BufferDesc->Common.ReferenceCount = (UINT16) |
| 274 | (BufferDesc->Common.ReferenceCount + ObjDesc->Common.ReferenceCount); |
| 275 | |
| 276 | |
| 277 | Cleanup: |
| 278 | |
| 279 | /* Always delete the operands */ |
| 280 | |
| 281 | AcpiUtRemoveReference (OffsetDesc); |
| 282 | AcpiUtRemoveReference (BufferDesc); |
| 283 | |
| 284 | if (AmlOpcode == AML_CREATE_FIELD_OP) |
| 285 | { |
| 286 | AcpiUtRemoveReference (LengthDesc); |
| 287 | } |
| 288 | |
| 289 | /* On failure, delete the result descriptor */ |
| 290 | |
| 291 | if (ACPI_FAILURE (Status)) |
| 292 | { |
| 293 | AcpiUtRemoveReference (ResultDesc); /* Result descriptor */ |
| 294 | } |
| 295 | else |
| 296 | { |
| 297 | /* Now the address and length are valid for this BufferField */ |
| 298 | |
| 299 | ObjDesc->BufferField.Flags |= AOPOBJ_DATA_VALID; |
| 300 | } |
| 301 | |
| 302 | return_ACPI_STATUS (Status); |
| 303 | } |
| 304 | |
| 305 | |
| 306 | /******************************************************************************* |
| 307 | * |
| 308 | * FUNCTION: AcpiDsEvalBufferFieldOperands |
| 309 | * |
| 310 | * PARAMETERS: WalkState - Current walk |
| 311 | * Op - A valid BufferField Op object |
| 312 | * |
| 313 | * RETURN: Status |
| 314 | * |
| 315 | * DESCRIPTION: Get BufferField Buffer and Index |
| 316 | * Called from AcpiDsExecEndOp during BufferField parse tree walk |
| 317 | * |
| 318 | ******************************************************************************/ |
| 319 | |
| 320 | ACPI_STATUS |
| 321 | AcpiDsEvalBufferFieldOperands ( |
| 322 | ACPI_WALK_STATE *WalkState, |
| 323 | ACPI_PARSE_OBJECT *Op) |
| 324 | { |
| 325 | ACPI_STATUS Status; |
| 326 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 327 | ACPI_NAMESPACE_NODE *Node; |
| 328 | ACPI_PARSE_OBJECT *NextOp; |
| 329 | |
| 330 | |
| 331 | ACPI_FUNCTION_TRACE_PTR (DsEvalBufferFieldOperands, Op); |
| 332 | |
| 333 | |
| 334 | /* |
| 335 | * This is where we evaluate the address and length fields of the |
| 336 | * CreateXxxField declaration |
| 337 | */ |
| 338 | Node = Op->Common.Node; |
| 339 | |
| 340 | /* NextOp points to the op that holds the Buffer */ |
| 341 | |
| 342 | NextOp = Op->Common.Value.Arg; |
| 343 | |
| 344 | /* Evaluate/create the address and length operands */ |
| 345 | |
| 346 | Status = AcpiDsCreateOperands (WalkState, NextOp); |
| 347 | if (ACPI_FAILURE (Status)) |
| 348 | { |
| 349 | return_ACPI_STATUS (Status); |
| 350 | } |
| 351 | |
| 352 | ObjDesc = AcpiNsGetAttachedObject (Node); |
| 353 | if (!ObjDesc) |
| 354 | { |
| 355 | return_ACPI_STATUS (AE_NOT_EXIST); |
| 356 | } |
| 357 | |
| 358 | /* Resolve the operands */ |
| 359 | |
| 360 | Status = AcpiExResolveOperands ( |
| 361 | Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); |
| 362 | if (ACPI_FAILURE (Status)) |
| 363 | { |
| 364 | ACPI_ERROR ((AE_INFO, "(%s) bad operand(s), status 0x%X" , |
| 365 | AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Status)); |
| 366 | |
| 367 | return_ACPI_STATUS (Status); |
| 368 | } |
| 369 | |
| 370 | /* Initialize the Buffer Field */ |
| 371 | |
| 372 | if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) |
| 373 | { |
| 374 | /* NOTE: Slightly different operands for this opcode */ |
| 375 | |
| 376 | Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, |
| 377 | WalkState->Operands[0], WalkState->Operands[1], |
| 378 | WalkState->Operands[2], WalkState->Operands[3]); |
| 379 | } |
| 380 | else |
| 381 | { |
| 382 | /* All other, CreateXxxField opcodes */ |
| 383 | |
| 384 | Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, |
| 385 | WalkState->Operands[0], WalkState->Operands[1], |
| 386 | NULL, WalkState->Operands[2]); |
| 387 | } |
| 388 | |
| 389 | return_ACPI_STATUS (Status); |
| 390 | } |
| 391 | |
| 392 | |
| 393 | /******************************************************************************* |
| 394 | * |
| 395 | * FUNCTION: AcpiDsEvalRegionOperands |
| 396 | * |
| 397 | * PARAMETERS: WalkState - Current walk |
| 398 | * Op - A valid region Op object |
| 399 | * |
| 400 | * RETURN: Status |
| 401 | * |
| 402 | * DESCRIPTION: Get region address and length |
| 403 | * Called from AcpiDsExecEndOp during OpRegion parse tree walk |
| 404 | * |
| 405 | ******************************************************************************/ |
| 406 | |
| 407 | ACPI_STATUS |
| 408 | AcpiDsEvalRegionOperands ( |
| 409 | ACPI_WALK_STATE *WalkState, |
| 410 | ACPI_PARSE_OBJECT *Op) |
| 411 | { |
| 412 | ACPI_STATUS Status; |
| 413 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 414 | ACPI_OPERAND_OBJECT *OperandDesc; |
| 415 | ACPI_NAMESPACE_NODE *Node; |
| 416 | ACPI_PARSE_OBJECT *NextOp; |
| 417 | |
| 418 | |
| 419 | ACPI_FUNCTION_TRACE_PTR (DsEvalRegionOperands, Op); |
| 420 | |
| 421 | |
| 422 | /* |
| 423 | * This is where we evaluate the address and length fields of the |
| 424 | * OpRegion declaration |
| 425 | */ |
| 426 | Node = Op->Common.Node; |
| 427 | |
| 428 | /* NextOp points to the op that holds the SpaceID */ |
| 429 | |
| 430 | NextOp = Op->Common.Value.Arg; |
| 431 | |
| 432 | /* NextOp points to address op */ |
| 433 | |
| 434 | NextOp = NextOp->Common.Next; |
| 435 | |
| 436 | /* Evaluate/create the address and length operands */ |
| 437 | |
| 438 | Status = AcpiDsCreateOperands (WalkState, NextOp); |
| 439 | if (ACPI_FAILURE (Status)) |
| 440 | { |
| 441 | return_ACPI_STATUS (Status); |
| 442 | } |
| 443 | |
| 444 | /* Resolve the length and address operands to numbers */ |
| 445 | |
| 446 | Status = AcpiExResolveOperands ( |
| 447 | Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); |
| 448 | if (ACPI_FAILURE (Status)) |
| 449 | { |
| 450 | return_ACPI_STATUS (Status); |
| 451 | } |
| 452 | |
| 453 | ObjDesc = AcpiNsGetAttachedObject (Node); |
| 454 | if (!ObjDesc) |
| 455 | { |
| 456 | return_ACPI_STATUS (AE_NOT_EXIST); |
| 457 | } |
| 458 | |
| 459 | /* |
| 460 | * Get the length operand and save it |
| 461 | * (at Top of stack) |
| 462 | */ |
| 463 | OperandDesc = WalkState->Operands[WalkState->NumOperands - 1]; |
| 464 | |
| 465 | ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value; |
| 466 | AcpiUtRemoveReference (OperandDesc); |
| 467 | |
| 468 | /* |
| 469 | * Get the address and save it |
| 470 | * (at top of stack - 1) |
| 471 | */ |
| 472 | OperandDesc = WalkState->Operands[WalkState->NumOperands - 2]; |
| 473 | |
| 474 | ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) |
| 475 | OperandDesc->Integer.Value; |
| 476 | AcpiUtRemoveReference (OperandDesc); |
| 477 | |
| 478 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n" , |
| 479 | ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address), |
| 480 | ObjDesc->Region.Length)); |
| 481 | |
| 482 | /* Now the address and length are valid for this opregion */ |
| 483 | |
| 484 | ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; |
| 485 | return_ACPI_STATUS (Status); |
| 486 | } |
| 487 | |
| 488 | |
| 489 | /******************************************************************************* |
| 490 | * |
| 491 | * FUNCTION: AcpiDsEvalTableRegionOperands |
| 492 | * |
| 493 | * PARAMETERS: WalkState - Current walk |
| 494 | * Op - A valid region Op object |
| 495 | * |
| 496 | * RETURN: Status |
| 497 | * |
| 498 | * DESCRIPTION: Get region address and length. |
| 499 | * Called from AcpiDsExecEndOp during DataTableRegion parse |
| 500 | * tree walk. |
| 501 | * |
| 502 | ******************************************************************************/ |
| 503 | |
| 504 | ACPI_STATUS |
| 505 | AcpiDsEvalTableRegionOperands ( |
| 506 | ACPI_WALK_STATE *WalkState, |
| 507 | ACPI_PARSE_OBJECT *Op) |
| 508 | { |
| 509 | ACPI_STATUS Status; |
| 510 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 511 | ACPI_OPERAND_OBJECT **Operand; |
| 512 | ACPI_NAMESPACE_NODE *Node; |
| 513 | ACPI_PARSE_OBJECT *NextOp; |
| 514 | ACPI_TABLE_HEADER *Table; |
| 515 | UINT32 TableIndex; |
| 516 | |
| 517 | |
| 518 | ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op); |
| 519 | |
| 520 | |
| 521 | /* |
| 522 | * This is where we evaluate the Signature string, OemId string, |
| 523 | * and OemTableId string of the Data Table Region declaration |
| 524 | */ |
| 525 | Node = Op->Common.Node; |
| 526 | |
| 527 | /* NextOp points to Signature string op */ |
| 528 | |
| 529 | NextOp = Op->Common.Value.Arg; |
| 530 | |
| 531 | /* |
| 532 | * Evaluate/create the Signature string, OemId string, |
| 533 | * and OemTableId string operands |
| 534 | */ |
| 535 | Status = AcpiDsCreateOperands (WalkState, NextOp); |
| 536 | if (ACPI_FAILURE (Status)) |
| 537 | { |
| 538 | return_ACPI_STATUS (Status); |
| 539 | } |
| 540 | |
| 541 | Operand = &WalkState->Operands[0]; |
| 542 | |
| 543 | /* |
| 544 | * Resolve the Signature string, OemId string, |
| 545 | * and OemTableId string operands |
| 546 | */ |
| 547 | Status = AcpiExResolveOperands ( |
| 548 | Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); |
| 549 | if (ACPI_FAILURE (Status)) |
| 550 | { |
| 551 | goto Cleanup; |
| 552 | } |
| 553 | |
| 554 | /* Find the ACPI table */ |
| 555 | |
| 556 | Status = AcpiTbFindTable ( |
| 557 | Operand[0]->String.Pointer, |
| 558 | Operand[1]->String.Pointer, |
| 559 | Operand[2]->String.Pointer, &TableIndex); |
| 560 | if (ACPI_FAILURE (Status)) |
| 561 | { |
| 562 | if (Status == AE_NOT_FOUND) |
| 563 | { |
| 564 | ACPI_ERROR ((AE_INFO, |
| 565 | "ACPI Table [%4.4s] OEM:(%s, %s) not found in RSDT/XSDT" , |
| 566 | Operand[0]->String.Pointer, |
| 567 | Operand[1]->String.Pointer, |
| 568 | Operand[2]->String.Pointer)); |
| 569 | } |
| 570 | goto Cleanup; |
| 571 | } |
| 572 | |
| 573 | Status = AcpiGetTableByIndex (TableIndex, &Table); |
| 574 | if (ACPI_FAILURE (Status)) |
| 575 | { |
| 576 | goto Cleanup; |
| 577 | } |
| 578 | |
| 579 | ObjDesc = AcpiNsGetAttachedObject (Node); |
| 580 | if (!ObjDesc) |
| 581 | { |
| 582 | Status = AE_NOT_EXIST; |
| 583 | goto Cleanup; |
| 584 | } |
| 585 | |
| 586 | ObjDesc->Region.Address = ACPI_PTR_TO_PHYSADDR (Table); |
| 587 | ObjDesc->Region.Length = Table->Length; |
| 588 | |
| 589 | ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n" , |
| 590 | ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address), |
| 591 | ObjDesc->Region.Length)); |
| 592 | |
| 593 | /* Now the address and length are valid for this opregion */ |
| 594 | |
| 595 | ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; |
| 596 | |
| 597 | Cleanup: |
| 598 | AcpiUtRemoveReference (Operand[0]); |
| 599 | AcpiUtRemoveReference (Operand[1]); |
| 600 | AcpiUtRemoveReference (Operand[2]); |
| 601 | |
| 602 | return_ACPI_STATUS (Status); |
| 603 | } |
| 604 | |
| 605 | |
| 606 | /******************************************************************************* |
| 607 | * |
| 608 | * FUNCTION: AcpiDsEvalDataObjectOperands |
| 609 | * |
| 610 | * PARAMETERS: WalkState - Current walk |
| 611 | * Op - A valid DataObject Op object |
| 612 | * ObjDesc - DataObject |
| 613 | * |
| 614 | * RETURN: Status |
| 615 | * |
| 616 | * DESCRIPTION: Get the operands and complete the following data object types: |
| 617 | * Buffer, Package. |
| 618 | * |
| 619 | ******************************************************************************/ |
| 620 | |
| 621 | ACPI_STATUS |
| 622 | AcpiDsEvalDataObjectOperands ( |
| 623 | ACPI_WALK_STATE *WalkState, |
| 624 | ACPI_PARSE_OBJECT *Op, |
| 625 | ACPI_OPERAND_OBJECT *ObjDesc) |
| 626 | { |
| 627 | ACPI_STATUS Status; |
| 628 | ACPI_OPERAND_OBJECT *ArgDesc; |
| 629 | UINT32 Length; |
| 630 | |
| 631 | |
| 632 | ACPI_FUNCTION_TRACE (DsEvalDataObjectOperands); |
| 633 | |
| 634 | |
| 635 | /* The first operand (for all of these data objects) is the length */ |
| 636 | |
| 637 | /* |
| 638 | * Set proper index into operand stack for AcpiDsObjStackPush |
| 639 | * invoked inside AcpiDsCreateOperand. |
| 640 | */ |
| 641 | WalkState->OperandIndex = WalkState->NumOperands; |
| 642 | |
| 643 | Status = AcpiDsCreateOperand (WalkState, Op->Common.Value.Arg, 1); |
| 644 | if (ACPI_FAILURE (Status)) |
| 645 | { |
| 646 | return_ACPI_STATUS (Status); |
| 647 | } |
| 648 | |
| 649 | Status = AcpiExResolveOperands (WalkState->Opcode, |
| 650 | &(WalkState->Operands [WalkState->NumOperands -1]), |
| 651 | WalkState); |
| 652 | if (ACPI_FAILURE (Status)) |
| 653 | { |
| 654 | return_ACPI_STATUS (Status); |
| 655 | } |
| 656 | |
| 657 | /* Extract length operand */ |
| 658 | |
| 659 | ArgDesc = WalkState->Operands [WalkState->NumOperands - 1]; |
| 660 | Length = (UINT32) ArgDesc->Integer.Value; |
| 661 | |
| 662 | /* Cleanup for length operand */ |
| 663 | |
| 664 | Status = AcpiDsObjStackPop (1, WalkState); |
| 665 | if (ACPI_FAILURE (Status)) |
| 666 | { |
| 667 | return_ACPI_STATUS (Status); |
| 668 | } |
| 669 | |
| 670 | AcpiUtRemoveReference (ArgDesc); |
| 671 | |
| 672 | /* |
| 673 | * Create the actual data object |
| 674 | */ |
| 675 | switch (Op->Common.AmlOpcode) |
| 676 | { |
| 677 | case AML_BUFFER_OP: |
| 678 | |
| 679 | Status = AcpiDsBuildInternalBufferObj ( |
| 680 | WalkState, Op, Length, &ObjDesc); |
| 681 | break; |
| 682 | |
| 683 | case AML_PACKAGE_OP: |
| 684 | case AML_VAR_PACKAGE_OP: |
| 685 | |
| 686 | Status = AcpiDsBuildInternalPackageObj ( |
| 687 | WalkState, Op, Length, &ObjDesc); |
| 688 | break; |
| 689 | |
| 690 | default: |
| 691 | |
| 692 | return_ACPI_STATUS (AE_AML_BAD_OPCODE); |
| 693 | } |
| 694 | |
| 695 | if (ACPI_SUCCESS (Status)) |
| 696 | { |
| 697 | /* |
| 698 | * Return the object in the WalkState, unless the parent is a package - |
| 699 | * in this case, the return object will be stored in the parse tree |
| 700 | * for the package. |
| 701 | */ |
| 702 | if ((!Op->Common.Parent) || |
| 703 | ((Op->Common.Parent->Common.AmlOpcode != AML_PACKAGE_OP) && |
| 704 | (Op->Common.Parent->Common.AmlOpcode != AML_VAR_PACKAGE_OP) && |
| 705 | (Op->Common.Parent->Common.AmlOpcode != AML_NAME_OP))) |
| 706 | { |
| 707 | WalkState->ResultObj = ObjDesc; |
| 708 | } |
| 709 | } |
| 710 | |
| 711 | return_ACPI_STATUS (Status); |
| 712 | } |
| 713 | |
| 714 | |
| 715 | /******************************************************************************* |
| 716 | * |
| 717 | * FUNCTION: AcpiDsEvalBankFieldOperands |
| 718 | * |
| 719 | * PARAMETERS: WalkState - Current walk |
| 720 | * Op - A valid BankField Op object |
| 721 | * |
| 722 | * RETURN: Status |
| 723 | * |
| 724 | * DESCRIPTION: Get BankField BankValue |
| 725 | * Called from AcpiDsExecEndOp during BankField parse tree walk |
| 726 | * |
| 727 | ******************************************************************************/ |
| 728 | |
| 729 | ACPI_STATUS |
| 730 | AcpiDsEvalBankFieldOperands ( |
| 731 | ACPI_WALK_STATE *WalkState, |
| 732 | ACPI_PARSE_OBJECT *Op) |
| 733 | { |
| 734 | ACPI_STATUS Status; |
| 735 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 736 | ACPI_OPERAND_OBJECT *OperandDesc; |
| 737 | ACPI_NAMESPACE_NODE *Node; |
| 738 | ACPI_PARSE_OBJECT *NextOp; |
| 739 | ACPI_PARSE_OBJECT *Arg; |
| 740 | |
| 741 | |
| 742 | ACPI_FUNCTION_TRACE_PTR (DsEvalBankFieldOperands, Op); |
| 743 | |
| 744 | |
| 745 | /* |
| 746 | * This is where we evaluate the BankValue field of the |
| 747 | * BankField declaration |
| 748 | */ |
| 749 | |
| 750 | /* NextOp points to the op that holds the Region */ |
| 751 | |
| 752 | NextOp = Op->Common.Value.Arg; |
| 753 | |
| 754 | /* NextOp points to the op that holds the Bank Register */ |
| 755 | |
| 756 | NextOp = NextOp->Common.Next; |
| 757 | |
| 758 | /* NextOp points to the op that holds the Bank Value */ |
| 759 | |
| 760 | NextOp = NextOp->Common.Next; |
| 761 | |
| 762 | /* |
| 763 | * Set proper index into operand stack for AcpiDsObjStackPush |
| 764 | * invoked inside AcpiDsCreateOperand. |
| 765 | * |
| 766 | * We use WalkState->Operands[0] to store the evaluated BankValue |
| 767 | */ |
| 768 | WalkState->OperandIndex = 0; |
| 769 | |
| 770 | Status = AcpiDsCreateOperand (WalkState, NextOp, 0); |
| 771 | if (ACPI_FAILURE (Status)) |
| 772 | { |
| 773 | return_ACPI_STATUS (Status); |
| 774 | } |
| 775 | |
| 776 | Status = AcpiExResolveToValue (&WalkState->Operands[0], WalkState); |
| 777 | if (ACPI_FAILURE (Status)) |
| 778 | { |
| 779 | return_ACPI_STATUS (Status); |
| 780 | } |
| 781 | |
| 782 | ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS, |
| 783 | AcpiPsGetOpcodeName (Op->Common.AmlOpcode), 1); |
| 784 | /* |
| 785 | * Get the BankValue operand and save it |
| 786 | * (at Top of stack) |
| 787 | */ |
| 788 | OperandDesc = WalkState->Operands[0]; |
| 789 | |
| 790 | /* Arg points to the start Bank Field */ |
| 791 | |
| 792 | Arg = AcpiPsGetArg (Op, 4); |
| 793 | while (Arg) |
| 794 | { |
| 795 | /* Ignore OFFSET and ACCESSAS terms here */ |
| 796 | |
| 797 | if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP) |
| 798 | { |
| 799 | Node = Arg->Common.Node; |
| 800 | |
| 801 | ObjDesc = AcpiNsGetAttachedObject (Node); |
| 802 | if (!ObjDesc) |
| 803 | { |
| 804 | return_ACPI_STATUS (AE_NOT_EXIST); |
| 805 | } |
| 806 | |
| 807 | ObjDesc->BankField.Value = (UINT32) OperandDesc->Integer.Value; |
| 808 | } |
| 809 | |
| 810 | /* Move to next field in the list */ |
| 811 | |
| 812 | Arg = Arg->Common.Next; |
| 813 | } |
| 814 | |
| 815 | AcpiUtRemoveReference (OperandDesc); |
| 816 | return_ACPI_STATUS (Status); |
| 817 | } |
| 818 | |