1 /****************************************************************************** 2 * 3 * Module Name: dswload - Dispatcher first pass namespace load callbacks 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2023, 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 #ifdef ACPI_ASL_COMPILER 160 #include <contrib/dev/acpica/include/acdisasm.h> 161 #endif 162 163 #define _COMPONENT ACPI_DISPATCHER 164 ACPI_MODULE_NAME ("dswload") 165 166 167 /******************************************************************************* 168 * 169 * FUNCTION: AcpiDsInitCallbacks 170 * 171 * PARAMETERS: WalkState - Current state of the parse tree walk 172 * PassNumber - 1, 2, or 3 173 * 174 * RETURN: Status 175 * 176 * DESCRIPTION: Init walk state callbacks 177 * 178 ******************************************************************************/ 179 180 ACPI_STATUS 181 AcpiDsInitCallbacks ( 182 ACPI_WALK_STATE *WalkState, 183 UINT32 PassNumber) 184 { 185 186 switch (PassNumber) 187 { 188 case 0: 189 190 /* Parse only - caller will setup callbacks */ 191 192 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 193 ACPI_PARSE_DELETE_TREE | 194 ACPI_PARSE_DISASSEMBLE; 195 WalkState->DescendingCallback = NULL; 196 WalkState->AscendingCallback = NULL; 197 break; 198 199 case 1: 200 201 /* Load pass 1 */ 202 203 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 204 ACPI_PARSE_DELETE_TREE; 205 WalkState->DescendingCallback = AcpiDsLoad1BeginOp; 206 WalkState->AscendingCallback = AcpiDsLoad1EndOp; 207 break; 208 209 case 2: 210 211 /* Load pass 2 */ 212 213 WalkState->ParseFlags = ACPI_PARSE_LOAD_PASS1 | 214 ACPI_PARSE_DELETE_TREE; 215 WalkState->DescendingCallback = AcpiDsLoad2BeginOp; 216 WalkState->AscendingCallback = AcpiDsLoad2EndOp; 217 break; 218 219 case 3: 220 221 /* Execution pass */ 222 223 WalkState->ParseFlags |= ACPI_PARSE_EXECUTE | 224 ACPI_PARSE_DELETE_TREE; 225 WalkState->DescendingCallback = AcpiDsExecBeginOp; 226 WalkState->AscendingCallback = AcpiDsExecEndOp; 227 break; 228 229 default: 230 231 return (AE_BAD_PARAMETER); 232 } 233 234 return (AE_OK); 235 } 236 237 238 /******************************************************************************* 239 * 240 * FUNCTION: AcpiDsLoad1BeginOp 241 * 242 * PARAMETERS: WalkState - Current state of the parse tree walk 243 * OutOp - Where to return op if a new one is created 244 * 245 * RETURN: Status 246 * 247 * DESCRIPTION: Descending callback used during the loading of ACPI tables. 248 * 249 ******************************************************************************/ 250 251 ACPI_STATUS 252 AcpiDsLoad1BeginOp ( 253 ACPI_WALK_STATE *WalkState, 254 ACPI_PARSE_OBJECT **OutOp) 255 { 256 ACPI_PARSE_OBJECT *Op; 257 ACPI_NAMESPACE_NODE *Node; 258 ACPI_STATUS Status; 259 ACPI_OBJECT_TYPE ObjectType; 260 char *Path; 261 UINT32 Flags; 262 263 264 ACPI_FUNCTION_TRACE_PTR (DsLoad1BeginOp, WalkState->Op); 265 266 267 Op = WalkState->Op; 268 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 269 270 /* We are only interested in opcodes that have an associated name */ 271 272 if (Op) 273 { 274 if (!(WalkState->OpInfo->Flags & AML_NAMED)) 275 { 276 *OutOp = Op; 277 return_ACPI_STATUS (AE_OK); 278 } 279 280 /* Check if this object has already been installed in the namespace */ 281 282 if (Op->Common.Node) 283 { 284 *OutOp = Op; 285 return_ACPI_STATUS (AE_OK); 286 } 287 } 288 289 Path = AcpiPsGetNextNamestring (&WalkState->ParserState); 290 291 /* Map the raw opcode into an internal object type */ 292 293 ObjectType = WalkState->OpInfo->ObjectType; 294 295 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 296 "State=%p Op=%p [%s]\n", WalkState, Op, 297 AcpiUtGetTypeName (ObjectType))); 298 299 switch (WalkState->Opcode) 300 { 301 case AML_SCOPE_OP: 302 /* 303 * The target name of the Scope() operator must exist at this point so 304 * that we can actually open the scope to enter new names underneath it. 305 * Allow search-to-root for single namesegs. 306 */ 307 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 308 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &(Node)); 309 #ifdef ACPI_ASL_COMPILER 310 if (Status == AE_NOT_FOUND) 311 { 312 /* 313 * Table disassembly: 314 * Target of Scope() not found. Generate an External for it, and 315 * insert the name into the namespace. 316 */ 317 AcpiDmAddOpToExternalList (Op, Path, ACPI_TYPE_DEVICE, 0, 0); 318 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 319 ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, 320 WalkState, &Node); 321 } 322 #endif 323 if (ACPI_FAILURE (Status)) 324 { 325 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, Path, Status); 326 return_ACPI_STATUS (Status); 327 } 328 329 /* 330 * Check to make sure that the target is 331 * one of the opcodes that actually opens a scope 332 */ 333 switch (Node->Type) 334 { 335 case ACPI_TYPE_ANY: 336 case ACPI_TYPE_LOCAL_SCOPE: /* Scope */ 337 case ACPI_TYPE_DEVICE: 338 case ACPI_TYPE_POWER: 339 case ACPI_TYPE_PROCESSOR: 340 case ACPI_TYPE_THERMAL: 341 342 /* These are acceptable types */ 343 break; 344 345 case ACPI_TYPE_INTEGER: 346 case ACPI_TYPE_STRING: 347 case ACPI_TYPE_BUFFER: 348 /* 349 * These types we will allow, but we will change the type. 350 * This enables some existing code of the form: 351 * 352 * Name (DEB, 0) 353 * Scope (DEB) { ... } 354 * 355 * Note: silently change the type here. On the second pass, 356 * we will report a warning 357 */ 358 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 359 "Type override - [%4.4s] had invalid type (%s) " 360 "for Scope operator, changed to type ANY\n", 361 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Node->Type))); 362 363 Node->Type = ACPI_TYPE_ANY; 364 WalkState->ScopeInfo->Common.Value = ACPI_TYPE_ANY; 365 break; 366 367 case ACPI_TYPE_METHOD: 368 /* 369 * Allow scope change to root during execution of module-level 370 * code. Root is typed METHOD during this time. 371 */ 372 if ((Node == AcpiGbl_RootNode) && 373 (WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL)) 374 { 375 break; 376 } 377 378 ACPI_FALLTHROUGH; 379 380 default: 381 382 /* All other types are an error */ 383 384 ACPI_ERROR ((AE_INFO, 385 "Invalid type (%s) for target of " 386 "Scope operator [%4.4s] (Cannot override)", 387 AcpiUtGetTypeName (Node->Type), AcpiUtGetNodeName (Node))); 388 389 return_ACPI_STATUS (AE_AML_OPERAND_TYPE); 390 } 391 break; 392 393 default: 394 /* 395 * For all other named opcodes, we will enter the name into 396 * the namespace. 397 * 398 * Setup the search flags. 399 * Since we are entering a name into the namespace, we do not want to 400 * enable the search-to-root upsearch. 401 * 402 * There are only two conditions where it is acceptable that the name 403 * already exists: 404 * 1) the Scope() operator can reopen a scoping object that was 405 * previously defined (Scope, Method, Device, etc.) 406 * 2) Whenever we are parsing a deferred opcode (OpRegion, Buffer, 407 * BufferField, or Package), the name of the object is already 408 * in the namespace. 409 */ 410 if (WalkState->DeferredNode) 411 { 412 /* This name is already in the namespace, get the node */ 413 414 Node = WalkState->DeferredNode; 415 Status = AE_OK; 416 break; 417 } 418 419 /* 420 * If we are executing a method, do not create any namespace objects 421 * during the load phase, only during execution. 422 */ 423 if (WalkState->MethodNode) 424 { 425 Node = NULL; 426 Status = AE_OK; 427 break; 428 } 429 430 Flags = ACPI_NS_NO_UPSEARCH; 431 if ((WalkState->Opcode != AML_SCOPE_OP) && 432 (!(WalkState->ParseFlags & ACPI_PARSE_DEFERRED_OP))) 433 { 434 if (WalkState->NamespaceOverride) 435 { 436 Flags |= ACPI_NS_OVERRIDE_IF_FOUND; 437 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Override allowed\n", 438 AcpiUtGetTypeName (ObjectType))); 439 } 440 else 441 { 442 Flags |= ACPI_NS_ERROR_IF_FOUND; 443 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "[%s] Cannot already exist\n", 444 AcpiUtGetTypeName (ObjectType))); 445 } 446 } 447 else 448 { 449 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 450 "[%s] Both Find or Create allowed\n", 451 AcpiUtGetTypeName (ObjectType))); 452 } 453 454 /* 455 * Enter the named type into the internal namespace. We enter the name 456 * as we go downward in the parse tree. Any necessary subobjects that 457 * involve arguments to the opcode must be created as we go back up the 458 * parse tree later. 459 */ 460 Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ObjectType, 461 ACPI_IMODE_LOAD_PASS1, Flags, WalkState, &Node); 462 if (ACPI_FAILURE (Status)) 463 { 464 if (Status == AE_ALREADY_EXISTS) 465 { 466 /* The name already exists in this scope */ 467 468 if (Node->Flags & ANOBJ_IS_EXTERNAL) 469 { 470 /* 471 * Allow one create on an object or segment that was 472 * previously declared External 473 */ 474 Node->Flags &= ~ANOBJ_IS_EXTERNAL; 475 Node->Type = (UINT8) ObjectType; 476 477 /* Just retyped a node, probably will need to open a scope */ 478 479 if (AcpiNsOpensScope (ObjectType)) 480 { 481 Status = AcpiDsScopeStackPush ( 482 Node, ObjectType, WalkState); 483 if (ACPI_FAILURE (Status)) 484 { 485 return_ACPI_STATUS (Status); 486 } 487 } 488 489 Status = AE_OK; 490 } 491 } 492 493 if (ACPI_FAILURE (Status)) 494 { 495 ACPI_ERROR_NAMESPACE (WalkState->ScopeInfo, Path, Status); 496 return_ACPI_STATUS (Status); 497 } 498 } 499 break; 500 } 501 502 /* Common exit */ 503 504 if (!Op) 505 { 506 /* Create a new op */ 507 508 Op = AcpiPsAllocOp (WalkState->Opcode, WalkState->Aml); 509 if (!Op) 510 { 511 return_ACPI_STATUS (AE_NO_MEMORY); 512 } 513 } 514 515 /* Initialize the op */ 516 517 #ifdef ACPI_CONSTANT_EVAL_ONLY 518 Op->Named.Path = Path; 519 #endif 520 521 if (Node) 522 { 523 /* 524 * Put the Node in the "op" object that the parser uses, so we 525 * can get it again quickly when this scope is closed 526 */ 527 Op->Common.Node = Node; 528 Op->Named.Name = Node->Name.Integer; 529 } 530 531 AcpiPsAppendArg (AcpiPsGetParentScope (&WalkState->ParserState), Op); 532 *OutOp = Op; 533 return_ACPI_STATUS (Status); 534 } 535 536 537 /******************************************************************************* 538 * 539 * FUNCTION: AcpiDsLoad1EndOp 540 * 541 * PARAMETERS: WalkState - Current state of the parse tree walk 542 * 543 * RETURN: Status 544 * 545 * DESCRIPTION: Ascending callback used during the loading of the namespace, 546 * both control methods and everything else. 547 * 548 ******************************************************************************/ 549 550 ACPI_STATUS 551 AcpiDsLoad1EndOp ( 552 ACPI_WALK_STATE *WalkState) 553 { 554 ACPI_PARSE_OBJECT *Op; 555 ACPI_OBJECT_TYPE ObjectType; 556 ACPI_STATUS Status = AE_OK; 557 #ifdef ACPI_ASL_COMPILER 558 UINT8 ParamCount; 559 #endif 560 561 562 ACPI_FUNCTION_TRACE (DsLoad1EndOp); 563 564 565 Op = WalkState->Op; 566 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", Op, WalkState)); 567 568 /* 569 * Disassembler: handle create field operators here. 570 * 571 * CreateBufferField is a deferred op that is typically processed in load 572 * pass 2. However, disassembly of control method contents walk the parse 573 * tree with ACPI_PARSE_LOAD_PASS1 and AML_CREATE operators are processed 574 * in a later walk. This is a problem when there is a control method that 575 * has the same name as the AML_CREATE object. In this case, any use of the 576 * name segment will be detected as a method call rather than a reference 577 * to a buffer field. 578 * 579 * This earlier creation during disassembly solves this issue by inserting 580 * the named object in the ACPI namespace so that references to this name 581 * would be a name string rather than a method call. 582 */ 583 if ((WalkState->ParseFlags & ACPI_PARSE_DISASSEMBLE) && 584 (WalkState->OpInfo->Flags & AML_CREATE)) 585 { 586 Status = AcpiDsCreateBufferField (Op, WalkState); 587 return_ACPI_STATUS (Status); 588 } 589 590 /* We are only interested in opcodes that have an associated name */ 591 592 if (!(WalkState->OpInfo->Flags & (AML_NAMED | AML_FIELD))) 593 { 594 return_ACPI_STATUS (AE_OK); 595 } 596 597 /* Get the object type to determine if we should pop the scope */ 598 599 ObjectType = WalkState->OpInfo->ObjectType; 600 601 if (WalkState->OpInfo->Flags & AML_FIELD) 602 { 603 /* 604 * If we are executing a method, do not create any namespace objects 605 * during the load phase, only during execution. 606 */ 607 if (!WalkState->MethodNode) 608 { 609 if (WalkState->Opcode == AML_FIELD_OP || 610 WalkState->Opcode == AML_BANK_FIELD_OP || 611 WalkState->Opcode == AML_INDEX_FIELD_OP) 612 { 613 Status = AcpiDsInitFieldObjects (Op, WalkState); 614 } 615 } 616 return_ACPI_STATUS (Status); 617 } 618 619 /* 620 * If we are executing a method, do not create any namespace objects 621 * during the load phase, only during execution. 622 */ 623 if (!WalkState->MethodNode) 624 { 625 if (Op->Common.AmlOpcode == AML_REGION_OP) 626 { 627 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, 628 (ACPI_ADR_SPACE_TYPE) 629 ((Op->Common.Value.Arg)->Common.Value.Integer), 630 WalkState); 631 if (ACPI_FAILURE (Status)) 632 { 633 return_ACPI_STATUS (Status); 634 } 635 } 636 else if (Op->Common.AmlOpcode == AML_DATA_REGION_OP) 637 { 638 Status = AcpiExCreateRegion (Op->Named.Data, Op->Named.Length, 639 ACPI_ADR_SPACE_DATA_TABLE, WalkState); 640 if (ACPI_FAILURE (Status)) 641 { 642 return_ACPI_STATUS (Status); 643 } 644 } 645 } 646 647 if (Op->Common.AmlOpcode == AML_NAME_OP) 648 { 649 /* For Name opcode, get the object type from the argument */ 650 651 if (Op->Common.Value.Arg) 652 { 653 ObjectType = (AcpiPsGetOpcodeInfo ( 654 (Op->Common.Value.Arg)->Common.AmlOpcode))->ObjectType; 655 656 /* Set node type if we have a namespace node */ 657 658 if (Op->Common.Node) 659 { 660 Op->Common.Node->Type = (UINT8) ObjectType; 661 } 662 } 663 } 664 665 #ifdef ACPI_ASL_COMPILER 666 /* 667 * For external opcode, get the object type from the argument and 668 * get the parameter count from the argument's next. 669 */ 670 if (AcpiGbl_DisasmFlag && 671 Op->Common.Node && 672 Op->Common.AmlOpcode == AML_EXTERNAL_OP) 673 { 674 /* 675 * Note, if this external is not a method 676 * Op->Common.Value.Arg->Common.Next->Common.Value.Integer == 0 677 * Therefore, ParamCount will be 0. 678 */ 679 ParamCount = (UINT8) Op->Common.Value.Arg->Common.Next->Common.Value.Integer; 680 ObjectType = (UINT8) Op->Common.Value.Arg->Common.Value.Integer; 681 Op->Common.Node->Flags |= ANOBJ_IS_EXTERNAL; 682 Op->Common.Node->Type = (UINT8) ObjectType; 683 684 AcpiDmCreateSubobjectForExternal ((UINT8)ObjectType, 685 &Op->Common.Node, ParamCount); 686 687 /* 688 * Add the external to the external list because we may be 689 * emitting code based off of the items within the external list. 690 */ 691 AcpiDmAddOpToExternalList (Op, Op->Named.Path, (UINT8)ObjectType, ParamCount, 692 ACPI_EXT_ORIGIN_FROM_OPCODE | ACPI_EXT_RESOLVED_REFERENCE); 693 } 694 #endif 695 696 /* 697 * If we are executing a method, do not create any namespace objects 698 * during the load phase, only during execution. 699 */ 700 if (!WalkState->MethodNode) 701 { 702 if (Op->Common.AmlOpcode == AML_METHOD_OP) 703 { 704 /* 705 * MethodOp PkgLength NameString MethodFlags TermList 706 * 707 * Note: We must create the method node/object pair as soon as we 708 * see the method declaration. This allows later pass1 parsing 709 * of invocations of the method (need to know the number of 710 * arguments.) 711 */ 712 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 713 "LOADING-Method: State=%p Op=%p NamedObj=%p\n", 714 WalkState, Op, Op->Named.Node)); 715 716 if (!AcpiNsGetAttachedObject (Op->Named.Node)) 717 { 718 WalkState->Operands[0] = ACPI_CAST_PTR (void, Op->Named.Node); 719 WalkState->NumOperands = 1; 720 721 Status = AcpiDsCreateOperands ( 722 WalkState, Op->Common.Value.Arg); 723 if (ACPI_SUCCESS (Status)) 724 { 725 Status = AcpiExCreateMethod (Op->Named.Data, 726 Op->Named.Length, WalkState); 727 } 728 729 WalkState->Operands[0] = NULL; 730 WalkState->NumOperands = 0; 731 732 if (ACPI_FAILURE (Status)) 733 { 734 return_ACPI_STATUS (Status); 735 } 736 } 737 } 738 } 739 740 /* Pop the scope stack (only if loading a table) */ 741 742 if (!WalkState->MethodNode && 743 Op->Common.AmlOpcode != AML_EXTERNAL_OP && 744 AcpiNsOpensScope (ObjectType)) 745 { 746 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "(%s): Popping scope for Op %p\n", 747 AcpiUtGetTypeName (ObjectType), Op)); 748 749 Status = AcpiDsScopeStackPop (WalkState); 750 } 751 752 return_ACPI_STATUS (Status); 753 } 754