1 /****************************************************************************** 2 * 3 * Module Name: dsopcode - Dispatcher support for regions and fields 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2020, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include <contrib/dev/acpica/include/acpi.h> 153 #include <contrib/dev/acpica/include/accommon.h> 154 #include <contrib/dev/acpica/include/acparser.h> 155 #include <contrib/dev/acpica/include/amlcode.h> 156 #include <contrib/dev/acpica/include/acdispat.h> 157 #include <contrib/dev/acpica/include/acinterp.h> 158 #include <contrib/dev/acpica/include/acnamesp.h> 159 #include <contrib/dev/acpica/include/acevents.h> 160 #include <contrib/dev/acpica/include/actables.h> 161 162 #define _COMPONENT ACPI_DISPATCHER 163 ACPI_MODULE_NAME ("dsopcode") 164 165 /* Local prototypes */ 166 167 static ACPI_STATUS 168 AcpiDsInitBufferField ( 169 UINT16 AmlOpcode, 170 ACPI_OPERAND_OBJECT *ObjDesc, 171 ACPI_OPERAND_OBJECT *BufferDesc, 172 ACPI_OPERAND_OBJECT *OffsetDesc, 173 ACPI_OPERAND_OBJECT *LengthDesc, 174 ACPI_OPERAND_OBJECT *ResultDesc); 175 176 177 /******************************************************************************* 178 * 179 * FUNCTION: AcpiDsInitializeRegion 180 * 181 * PARAMETERS: ObjHandle - Region namespace node 182 * 183 * RETURN: Status 184 * 185 * DESCRIPTION: Front end to EvInitializeRegion 186 * 187 ******************************************************************************/ 188 189 ACPI_STATUS 190 AcpiDsInitializeRegion ( 191 ACPI_HANDLE ObjHandle) 192 { 193 ACPI_OPERAND_OBJECT *ObjDesc; 194 ACPI_STATUS Status; 195 196 197 ObjDesc = AcpiNsGetAttachedObject (ObjHandle); 198 199 /* Namespace is NOT locked */ 200 201 Status = AcpiEvInitializeRegion (ObjDesc); 202 return (Status); 203 } 204 205 206 /******************************************************************************* 207 * 208 * FUNCTION: AcpiDsInitBufferField 209 * 210 * PARAMETERS: AmlOpcode - CreateXxxField 211 * ObjDesc - BufferField object 212 * BufferDesc - Host Buffer 213 * OffsetDesc - Offset into buffer 214 * LengthDesc - Length of field (CREATE_FIELD_OP only) 215 * ResultDesc - Where to store the result 216 * 217 * RETURN: Status 218 * 219 * DESCRIPTION: Perform actual initialization of a buffer field 220 * 221 ******************************************************************************/ 222 223 static ACPI_STATUS 224 AcpiDsInitBufferField ( 225 UINT16 AmlOpcode, 226 ACPI_OPERAND_OBJECT *ObjDesc, 227 ACPI_OPERAND_OBJECT *BufferDesc, 228 ACPI_OPERAND_OBJECT *OffsetDesc, 229 ACPI_OPERAND_OBJECT *LengthDesc, 230 ACPI_OPERAND_OBJECT *ResultDesc) 231 { 232 UINT32 Offset; 233 UINT32 BitOffset; 234 UINT32 BitCount; 235 UINT8 FieldFlags; 236 ACPI_STATUS Status; 237 238 239 ACPI_FUNCTION_TRACE_PTR (DsInitBufferField, ObjDesc); 240 241 242 /* Host object must be a Buffer */ 243 244 if (BufferDesc->Common.Type != ACPI_TYPE_BUFFER) 245 { 246 ACPI_ERROR ((AE_INFO, 247 "Target of Create Field is not a Buffer object - %s", 248 AcpiUtGetObjectTypeName (BufferDesc))); 249 250 Status = AE_AML_OPERAND_TYPE; 251 goto Cleanup; 252 } 253 254 /* 255 * The last parameter to all of these opcodes (ResultDesc) started 256 * out as a NameString, and should therefore now be a NS node 257 * after resolution in AcpiExResolveOperands(). 258 */ 259 if (ACPI_GET_DESCRIPTOR_TYPE (ResultDesc) != ACPI_DESC_TYPE_NAMED) 260 { 261 ACPI_ERROR ((AE_INFO, 262 "(%s) destination not a NS Node [%s]", 263 AcpiPsGetOpcodeName (AmlOpcode), 264 AcpiUtGetDescriptorName (ResultDesc))); 265 266 Status = AE_AML_OPERAND_TYPE; 267 goto Cleanup; 268 } 269 270 Offset = (UINT32) OffsetDesc->Integer.Value; 271 272 /* 273 * Setup the Bit offsets and counts, according to the opcode 274 */ 275 switch (AmlOpcode) 276 { 277 case AML_CREATE_FIELD_OP: 278 279 /* Offset is in bits, count is in bits */ 280 281 FieldFlags = AML_FIELD_ACCESS_BYTE; 282 BitOffset = Offset; 283 BitCount = (UINT32) LengthDesc->Integer.Value; 284 285 /* Must have a valid (>0) bit count */ 286 287 if (BitCount == 0) 288 { 289 ACPI_BIOS_ERROR ((AE_INFO, 290 "Attempt to CreateField of length zero")); 291 Status = AE_AML_OPERAND_VALUE; 292 goto Cleanup; 293 } 294 break; 295 296 case AML_CREATE_BIT_FIELD_OP: 297 298 /* Offset is in bits, Field is one bit */ 299 300 BitOffset = Offset; 301 BitCount = 1; 302 FieldFlags = AML_FIELD_ACCESS_BYTE; 303 break; 304 305 case AML_CREATE_BYTE_FIELD_OP: 306 307 /* Offset is in bytes, field is one byte */ 308 309 BitOffset = 8 * Offset; 310 BitCount = 8; 311 FieldFlags = AML_FIELD_ACCESS_BYTE; 312 break; 313 314 case AML_CREATE_WORD_FIELD_OP: 315 316 /* Offset is in bytes, field is one word */ 317 318 BitOffset = 8 * Offset; 319 BitCount = 16; 320 FieldFlags = AML_FIELD_ACCESS_WORD; 321 break; 322 323 case AML_CREATE_DWORD_FIELD_OP: 324 325 /* Offset is in bytes, field is one dword */ 326 327 BitOffset = 8 * Offset; 328 BitCount = 32; 329 FieldFlags = AML_FIELD_ACCESS_DWORD; 330 break; 331 332 case AML_CREATE_QWORD_FIELD_OP: 333 334 /* Offset is in bytes, field is one qword */ 335 336 BitOffset = 8 * Offset; 337 BitCount = 64; 338 FieldFlags = AML_FIELD_ACCESS_QWORD; 339 break; 340 341 default: 342 343 ACPI_ERROR ((AE_INFO, 344 "Unknown field creation opcode 0x%02X", 345 AmlOpcode)); 346 Status = AE_AML_BAD_OPCODE; 347 goto Cleanup; 348 } 349 350 /* Entire field must fit within the current length of the buffer */ 351 352 if ((BitOffset + BitCount) > 353 (8 * (UINT32) BufferDesc->Buffer.Length)) 354 { 355 Status = AE_AML_BUFFER_LIMIT; 356 ACPI_BIOS_EXCEPTION ((AE_INFO, Status, 357 "Field [%4.4s] at bit offset/length %u/%u " 358 "exceeds size of target Buffer (%u bits)", 359 AcpiUtGetNodeName (ResultDesc), BitOffset, BitCount, 360 8 * (UINT32) BufferDesc->Buffer.Length)); 361 goto Cleanup; 362 } 363 364 /* 365 * Initialize areas of the field object that are common to all fields 366 * For FieldFlags, use LOCK_RULE = 0 (NO_LOCK), 367 * UPDATE_RULE = 0 (UPDATE_PRESERVE) 368 */ 369 Status = AcpiExPrepCommonFieldObject ( 370 ObjDesc, FieldFlags, 0, BitOffset, BitCount); 371 if (ACPI_FAILURE (Status)) 372 { 373 goto Cleanup; 374 } 375 376 ObjDesc->BufferField.BufferObj = BufferDesc; 377 ObjDesc->BufferField.IsCreateField = AmlOpcode == AML_CREATE_FIELD_OP; 378 379 /* Reference count for BufferDesc inherits ObjDesc count */ 380 381 BufferDesc->Common.ReferenceCount = (UINT16) 382 (BufferDesc->Common.ReferenceCount + ObjDesc->Common.ReferenceCount); 383 384 385 Cleanup: 386 387 /* Always delete the operands */ 388 389 AcpiUtRemoveReference (OffsetDesc); 390 AcpiUtRemoveReference (BufferDesc); 391 392 if (AmlOpcode == AML_CREATE_FIELD_OP) 393 { 394 AcpiUtRemoveReference (LengthDesc); 395 } 396 397 /* On failure, delete the result descriptor */ 398 399 if (ACPI_FAILURE (Status)) 400 { 401 AcpiUtRemoveReference (ResultDesc); /* Result descriptor */ 402 } 403 else 404 { 405 /* Now the address and length are valid for this BufferField */ 406 407 ObjDesc->BufferField.Flags |= AOPOBJ_DATA_VALID; 408 } 409 410 return_ACPI_STATUS (Status); 411 } 412 413 414 /******************************************************************************* 415 * 416 * FUNCTION: AcpiDsEvalBufferFieldOperands 417 * 418 * PARAMETERS: WalkState - Current walk 419 * Op - A valid BufferField Op object 420 * 421 * RETURN: Status 422 * 423 * DESCRIPTION: Get BufferField Buffer and Index 424 * Called from AcpiDsExecEndOp during BufferField parse tree walk 425 * 426 ******************************************************************************/ 427 428 ACPI_STATUS 429 AcpiDsEvalBufferFieldOperands ( 430 ACPI_WALK_STATE *WalkState, 431 ACPI_PARSE_OBJECT *Op) 432 { 433 ACPI_STATUS Status; 434 ACPI_OPERAND_OBJECT *ObjDesc; 435 ACPI_NAMESPACE_NODE *Node; 436 ACPI_PARSE_OBJECT *NextOp; 437 438 439 ACPI_FUNCTION_TRACE_PTR (DsEvalBufferFieldOperands, Op); 440 441 442 /* 443 * This is where we evaluate the address and length fields of the 444 * CreateXxxField declaration 445 */ 446 Node = Op->Common.Node; 447 448 /* NextOp points to the op that holds the Buffer */ 449 450 NextOp = Op->Common.Value.Arg; 451 452 /* Evaluate/create the address and length operands */ 453 454 Status = AcpiDsCreateOperands (WalkState, NextOp); 455 if (ACPI_FAILURE (Status)) 456 { 457 return_ACPI_STATUS (Status); 458 } 459 460 ObjDesc = AcpiNsGetAttachedObject (Node); 461 if (!ObjDesc) 462 { 463 return_ACPI_STATUS (AE_NOT_EXIST); 464 } 465 466 /* Resolve the operands */ 467 468 Status = AcpiExResolveOperands ( 469 Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); 470 if (ACPI_FAILURE (Status)) 471 { 472 ACPI_ERROR ((AE_INFO, "(%s) bad operand(s), status 0x%X", 473 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Status)); 474 475 return_ACPI_STATUS (Status); 476 } 477 478 /* Initialize the Buffer Field */ 479 480 if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) 481 { 482 /* NOTE: Slightly different operands for this opcode */ 483 484 Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, 485 WalkState->Operands[0], WalkState->Operands[1], 486 WalkState->Operands[2], WalkState->Operands[3]); 487 } 488 else 489 { 490 /* All other, CreateXxxField opcodes */ 491 492 Status = AcpiDsInitBufferField (Op->Common.AmlOpcode, ObjDesc, 493 WalkState->Operands[0], WalkState->Operands[1], 494 NULL, WalkState->Operands[2]); 495 } 496 497 return_ACPI_STATUS (Status); 498 } 499 500 501 /******************************************************************************* 502 * 503 * FUNCTION: AcpiDsEvalRegionOperands 504 * 505 * PARAMETERS: WalkState - Current walk 506 * Op - A valid region Op object 507 * 508 * RETURN: Status 509 * 510 * DESCRIPTION: Get region address and length 511 * Called from AcpiDsExecEndOp during OpRegion parse tree walk 512 * 513 ******************************************************************************/ 514 515 ACPI_STATUS 516 AcpiDsEvalRegionOperands ( 517 ACPI_WALK_STATE *WalkState, 518 ACPI_PARSE_OBJECT *Op) 519 { 520 ACPI_STATUS Status; 521 ACPI_OPERAND_OBJECT *ObjDesc; 522 ACPI_OPERAND_OBJECT *OperandDesc; 523 ACPI_NAMESPACE_NODE *Node; 524 ACPI_PARSE_OBJECT *NextOp; 525 ACPI_ADR_SPACE_TYPE SpaceId; 526 527 528 ACPI_FUNCTION_TRACE_PTR (DsEvalRegionOperands, Op); 529 530 531 /* 532 * This is where we evaluate the address and length fields of the 533 * OpRegion declaration 534 */ 535 Node = Op->Common.Node; 536 537 /* NextOp points to the op that holds the SpaceID */ 538 539 NextOp = Op->Common.Value.Arg; 540 SpaceId = (ACPI_ADR_SPACE_TYPE) NextOp->Common.Value.Integer; 541 542 /* NextOp points to address op */ 543 544 NextOp = NextOp->Common.Next; 545 546 /* Evaluate/create the address and length operands */ 547 548 Status = AcpiDsCreateOperands (WalkState, NextOp); 549 if (ACPI_FAILURE (Status)) 550 { 551 return_ACPI_STATUS (Status); 552 } 553 554 /* Resolve the length and address operands to numbers */ 555 556 Status = AcpiExResolveOperands ( 557 Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); 558 if (ACPI_FAILURE (Status)) 559 { 560 return_ACPI_STATUS (Status); 561 } 562 563 ObjDesc = AcpiNsGetAttachedObject (Node); 564 if (!ObjDesc) 565 { 566 return_ACPI_STATUS (AE_NOT_EXIST); 567 } 568 569 /* 570 * Get the length operand and save it 571 * (at Top of stack) 572 */ 573 OperandDesc = WalkState->Operands[WalkState->NumOperands - 1]; 574 575 ObjDesc->Region.Length = (UINT32) OperandDesc->Integer.Value; 576 AcpiUtRemoveReference (OperandDesc); 577 578 /* A zero-length operation region is unusable. Just warn */ 579 580 if (!ObjDesc->Region.Length && (SpaceId < ACPI_NUM_PREDEFINED_REGIONS)) 581 { 582 ACPI_WARNING ((AE_INFO, 583 "Operation Region [%4.4s] has zero length (SpaceId %X)", 584 Node->Name.Ascii, SpaceId)); 585 } 586 587 /* 588 * Get the address and save it 589 * (at top of stack - 1) 590 */ 591 OperandDesc = WalkState->Operands[WalkState->NumOperands - 2]; 592 593 ObjDesc->Region.Address = (ACPI_PHYSICAL_ADDRESS) 594 OperandDesc->Integer.Value; 595 AcpiUtRemoveReference (OperandDesc); 596 597 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", 598 ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address), 599 ObjDesc->Region.Length)); 600 601 Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId, 602 ObjDesc->Region.Address, ObjDesc->Region.Length, Node); 603 604 /* Now the address and length are valid for this opregion */ 605 606 ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; 607 return_ACPI_STATUS (Status); 608 } 609 610 611 /******************************************************************************* 612 * 613 * FUNCTION: AcpiDsEvalTableRegionOperands 614 * 615 * PARAMETERS: WalkState - Current walk 616 * Op - A valid region Op object 617 * 618 * RETURN: Status 619 * 620 * DESCRIPTION: Get region address and length. 621 * Called from AcpiDsExecEndOp during DataTableRegion parse 622 * tree walk. 623 * 624 ******************************************************************************/ 625 626 ACPI_STATUS 627 AcpiDsEvalTableRegionOperands ( 628 ACPI_WALK_STATE *WalkState, 629 ACPI_PARSE_OBJECT *Op) 630 { 631 ACPI_STATUS Status; 632 ACPI_OPERAND_OBJECT *ObjDesc; 633 ACPI_OPERAND_OBJECT **Operand; 634 ACPI_NAMESPACE_NODE *Node; 635 ACPI_PARSE_OBJECT *NextOp; 636 ACPI_TABLE_HEADER *Table; 637 UINT32 TableIndex; 638 639 640 ACPI_FUNCTION_TRACE_PTR (DsEvalTableRegionOperands, Op); 641 642 643 /* 644 * This is where we evaluate the Signature string, OemId string, 645 * and OemTableId string of the Data Table Region declaration 646 */ 647 Node = Op->Common.Node; 648 649 /* NextOp points to Signature string op */ 650 651 NextOp = Op->Common.Value.Arg; 652 653 /* 654 * Evaluate/create the Signature string, OemId string, 655 * and OemTableId string operands 656 */ 657 Status = AcpiDsCreateOperands (WalkState, NextOp); 658 if (ACPI_FAILURE (Status)) 659 { 660 return_ACPI_STATUS (Status); 661 } 662 663 Operand = &WalkState->Operands[0]; 664 665 /* 666 * Resolve the Signature string, OemId string, 667 * and OemTableId string operands 668 */ 669 Status = AcpiExResolveOperands ( 670 Op->Common.AmlOpcode, ACPI_WALK_OPERANDS, WalkState); 671 if (ACPI_FAILURE (Status)) 672 { 673 goto Cleanup; 674 } 675 676 /* Find the ACPI table */ 677 678 Status = AcpiTbFindTable ( 679 Operand[0]->String.Pointer, 680 Operand[1]->String.Pointer, 681 Operand[2]->String.Pointer, &TableIndex); 682 if (ACPI_FAILURE (Status)) 683 { 684 if (Status == AE_NOT_FOUND) 685 { 686 ACPI_ERROR ((AE_INFO, 687 "ACPI Table [%4.4s] OEM:(%s, %s) not found in RSDT/XSDT", 688 Operand[0]->String.Pointer, 689 Operand[1]->String.Pointer, 690 Operand[2]->String.Pointer)); 691 } 692 goto Cleanup; 693 } 694 695 Status = AcpiGetTableByIndex (TableIndex, &Table); 696 if (ACPI_FAILURE (Status)) 697 { 698 goto Cleanup; 699 } 700 701 ObjDesc = AcpiNsGetAttachedObject (Node); 702 if (!ObjDesc) 703 { 704 Status = AE_NOT_EXIST; 705 goto Cleanup; 706 } 707 708 ObjDesc->Region.Address = ACPI_PTR_TO_PHYSADDR (Table); 709 ObjDesc->Region.Length = Table->Length; 710 711 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", 712 ObjDesc, ACPI_FORMAT_UINT64 (ObjDesc->Region.Address), 713 ObjDesc->Region.Length)); 714 715 /* Now the address and length are valid for this opregion */ 716 717 ObjDesc->Region.Flags |= AOPOBJ_DATA_VALID; 718 719 Cleanup: 720 AcpiUtRemoveReference (Operand[0]); 721 AcpiUtRemoveReference (Operand[1]); 722 AcpiUtRemoveReference (Operand[2]); 723 724 return_ACPI_STATUS (Status); 725 } 726 727 728 /******************************************************************************* 729 * 730 * FUNCTION: AcpiDsEvalDataObjectOperands 731 * 732 * PARAMETERS: WalkState - Current walk 733 * Op - A valid DataObject Op object 734 * ObjDesc - DataObject 735 * 736 * RETURN: Status 737 * 738 * DESCRIPTION: Get the operands and complete the following data object types: 739 * Buffer, Package. 740 * 741 ******************************************************************************/ 742 743 ACPI_STATUS 744 AcpiDsEvalDataObjectOperands ( 745 ACPI_WALK_STATE *WalkState, 746 ACPI_PARSE_OBJECT *Op, 747 ACPI_OPERAND_OBJECT *ObjDesc) 748 { 749 ACPI_STATUS Status; 750 ACPI_OPERAND_OBJECT *ArgDesc; 751 UINT32 Length; 752 753 754 ACPI_FUNCTION_TRACE (DsEvalDataObjectOperands); 755 756 757 /* The first operand (for all of these data objects) is the length */ 758 759 /* 760 * Set proper index into operand stack for AcpiDsObjStackPush 761 * invoked inside AcpiDsCreateOperand. 762 */ 763 WalkState->OperandIndex = WalkState->NumOperands; 764 765 /* Ignore if child is not valid */ 766 767 if (!Op->Common.Value.Arg) 768 { 769 ACPI_ERROR ((AE_INFO, 770 "Missing child while evaluating opcode %4.4X, Op %p", 771 Op->Common.AmlOpcode, Op)); 772 return_ACPI_STATUS (AE_OK); 773 } 774 775 Status = AcpiDsCreateOperand (WalkState, Op->Common.Value.Arg, 1); 776 if (ACPI_FAILURE (Status)) 777 { 778 return_ACPI_STATUS (Status); 779 } 780 781 Status = AcpiExResolveOperands (WalkState->Opcode, 782 &(WalkState->Operands [WalkState->NumOperands -1]), 783 WalkState); 784 if (ACPI_FAILURE (Status)) 785 { 786 return_ACPI_STATUS (Status); 787 } 788 789 /* Extract length operand */ 790 791 ArgDesc = WalkState->Operands [WalkState->NumOperands - 1]; 792 Length = (UINT32) ArgDesc->Integer.Value; 793 794 /* Cleanup for length operand */ 795 796 Status = AcpiDsObjStackPop (1, WalkState); 797 if (ACPI_FAILURE (Status)) 798 { 799 return_ACPI_STATUS (Status); 800 } 801 802 AcpiUtRemoveReference (ArgDesc); 803 804 /* 805 * Create the actual data object 806 */ 807 switch (Op->Common.AmlOpcode) 808 { 809 case AML_BUFFER_OP: 810 811 Status = AcpiDsBuildInternalBufferObj ( 812 WalkState, Op, Length, &ObjDesc); 813 break; 814 815 case AML_PACKAGE_OP: 816 case AML_VARIABLE_PACKAGE_OP: 817 818 Status = AcpiDsBuildInternalPackageObj ( 819 WalkState, Op, Length, &ObjDesc); 820 break; 821 822 default: 823 824 return_ACPI_STATUS (AE_AML_BAD_OPCODE); 825 } 826 827 if (ACPI_SUCCESS (Status)) 828 { 829 /* 830 * Return the object in the WalkState, unless the parent is a package - 831 * in this case, the return object will be stored in the parse tree 832 * for the package. 833 */ 834 if ((!Op->Common.Parent) || 835 ((Op->Common.Parent->Common.AmlOpcode != AML_PACKAGE_OP) && 836 (Op->Common.Parent->Common.AmlOpcode != AML_VARIABLE_PACKAGE_OP) && 837 (Op->Common.Parent->Common.AmlOpcode != AML_NAME_OP))) 838 { 839 WalkState->ResultObj = ObjDesc; 840 } 841 } 842 843 return_ACPI_STATUS (Status); 844 } 845 846 847 /******************************************************************************* 848 * 849 * FUNCTION: AcpiDsEvalBankFieldOperands 850 * 851 * PARAMETERS: WalkState - Current walk 852 * Op - A valid BankField Op object 853 * 854 * RETURN: Status 855 * 856 * DESCRIPTION: Get BankField BankValue 857 * Called from AcpiDsExecEndOp during BankField parse tree walk 858 * 859 ******************************************************************************/ 860 861 ACPI_STATUS 862 AcpiDsEvalBankFieldOperands ( 863 ACPI_WALK_STATE *WalkState, 864 ACPI_PARSE_OBJECT *Op) 865 { 866 ACPI_STATUS Status; 867 ACPI_OPERAND_OBJECT *ObjDesc; 868 ACPI_OPERAND_OBJECT *OperandDesc; 869 ACPI_NAMESPACE_NODE *Node; 870 ACPI_PARSE_OBJECT *NextOp; 871 ACPI_PARSE_OBJECT *Arg; 872 873 874 ACPI_FUNCTION_TRACE_PTR (DsEvalBankFieldOperands, Op); 875 876 877 /* 878 * This is where we evaluate the BankValue field of the 879 * BankField declaration 880 */ 881 882 /* NextOp points to the op that holds the Region */ 883 884 NextOp = Op->Common.Value.Arg; 885 886 /* NextOp points to the op that holds the Bank Register */ 887 888 NextOp = NextOp->Common.Next; 889 890 /* NextOp points to the op that holds the Bank Value */ 891 892 NextOp = NextOp->Common.Next; 893 894 /* 895 * Set proper index into operand stack for AcpiDsObjStackPush 896 * invoked inside AcpiDsCreateOperand. 897 * 898 * We use WalkState->Operands[0] to store the evaluated BankValue 899 */ 900 WalkState->OperandIndex = 0; 901 902 Status = AcpiDsCreateOperand (WalkState, NextOp, 0); 903 if (ACPI_FAILURE (Status)) 904 { 905 return_ACPI_STATUS (Status); 906 } 907 908 Status = AcpiExResolveToValue (&WalkState->Operands[0], WalkState); 909 if (ACPI_FAILURE (Status)) 910 { 911 return_ACPI_STATUS (Status); 912 } 913 914 ACPI_DUMP_OPERANDS (ACPI_WALK_OPERANDS, 915 AcpiPsGetOpcodeName (Op->Common.AmlOpcode), 1); 916 /* 917 * Get the BankValue operand and save it 918 * (at Top of stack) 919 */ 920 OperandDesc = WalkState->Operands[0]; 921 922 /* Arg points to the start Bank Field */ 923 924 Arg = AcpiPsGetArg (Op, 4); 925 while (Arg) 926 { 927 /* Ignore OFFSET and ACCESSAS terms here */ 928 929 if (Arg->Common.AmlOpcode == AML_INT_NAMEDFIELD_OP) 930 { 931 Node = Arg->Common.Node; 932 933 ObjDesc = AcpiNsGetAttachedObject (Node); 934 if (!ObjDesc) 935 { 936 return_ACPI_STATUS (AE_NOT_EXIST); 937 } 938 939 ObjDesc->BankField.Value = (UINT32) OperandDesc->Integer.Value; 940 } 941 942 /* Move to next field in the list */ 943 944 Arg = Arg->Common.Next; 945 } 946 947 AcpiUtRemoveReference (OperandDesc); 948 return_ACPI_STATUS (Status); 949 } 950