1/****************************************************************************** 2 * 3 * Module Name: dspkginit - Completion of deferred package initialization 4 * 5 *****************************************************************************/ 6 7/****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2017, 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/acnamesp.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> 158 159 160#define _COMPONENT ACPI_NAMESPACE 161 ACPI_MODULE_NAME ("dspkginit") 162 163 164/* Local prototypes */ 165 166static void 167AcpiDsResolvePackageElement ( 168 ACPI_OPERAND_OBJECT **Element); 169 170 171/******************************************************************************* 172 * 173 * FUNCTION: AcpiDsBuildInternalPackageObj 174 * 175 * PARAMETERS: WalkState - Current walk state 176 * Op - Parser object to be translated 177 * ElementCount - Number of elements in the package - this is 178 * the NumElements argument to Package() 179 * ObjDescPtr - Where the ACPI internal object is returned 180 * 181 * RETURN: Status 182 * 183 * DESCRIPTION: Translate a parser Op package object to the equivalent 184 * namespace object 185 * 186 * NOTE: The number of elements in the package will be always be the NumElements 187 * count, regardless of the number of elements in the package list. If 188 * NumElements is smaller, only that many package list elements are used. 189 * if NumElements is larger, the Package object is padded out with 190 * objects of type Uninitialized (as per ACPI spec.) 191 * 192 * Even though the ASL compilers do not allow NumElements to be smaller 193 * than the Package list length (for the fixed length package opcode), some 194 * BIOS code modifies the AML on the fly to adjust the NumElements, and 195 * this code compensates for that. This also provides compatibility with 196 * other AML interpreters. 197 * 198 ******************************************************************************/ 199 200ACPI_STATUS 201AcpiDsBuildInternalPackageObj ( 202 ACPI_WALK_STATE *WalkState, 203 ACPI_PARSE_OBJECT *Op, 204 UINT32 ElementCount, 205 ACPI_OPERAND_OBJECT **ObjDescPtr) 206{ 207 ACPI_PARSE_OBJECT *Arg; 208 ACPI_PARSE_OBJECT *Parent; 209 ACPI_OPERAND_OBJECT *ObjDesc = NULL; 210 ACPI_STATUS Status = AE_OK; 211 UINT16 ReferenceCount; 212 UINT32 Index; 213 UINT32 i; 214 215 216 ACPI_FUNCTION_TRACE (DsBuildInternalPackageObj); 217 218 219 /* Find the parent of a possibly nested package */ 220 221 Parent = Op->Common.Parent; 222 while ((Parent->Common.AmlOpcode == AML_PACKAGE_OP) || 223 (Parent->Common.AmlOpcode == AML_VARIABLE_PACKAGE_OP)) 224 { 225 Parent = Parent->Common.Parent; 226 } 227 228 /* 229 * If we are evaluating a Named package object of the form: 230 * Name (xxxx, Package) 231 * the package object already exists, otherwise it must be created. 232 */ 233 ObjDesc = *ObjDescPtr; 234 if (!ObjDesc) 235 { 236 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); 237 *ObjDescPtr = ObjDesc; 238 if (!ObjDesc) 239 { 240 return_ACPI_STATUS (AE_NO_MEMORY); 241 } 242 243 ObjDesc->Package.Node = Parent->Common.Node; 244 } 245 246 if (ObjDesc->Package.Flags & AOPOBJ_DATA_VALID) /* Just in case */ 247 { 248 return_ACPI_STATUS (AE_OK); 249 } 250 251 /* 252 * Allocate the element array (array of pointers to the individual 253 * objects) based on the NumElements parameter. Add an extra pointer slot 254 * so that the list is always null terminated. 255 */ 256 ObjDesc->Package.Elements = ACPI_ALLOCATE_ZEROED ( 257 ((ACPI_SIZE) ElementCount + 1) * sizeof (void *)); 258 259 if (!ObjDesc->Package.Elements) 260 { 261 AcpiUtDeleteObjectDesc (ObjDesc); 262 return_ACPI_STATUS (AE_NO_MEMORY); 263 } 264 265 ObjDesc->Package.Count = ElementCount; 266 Arg = Op->Common.Value.Arg; 267 Arg = Arg->Common.Next; 268 269 if (Arg) 270 { 271 ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID; 272 } 273 274 /* 275 * Initialize the elements of the package, up to the NumElements count. 276 * Package is automatically padded with uninitialized (NULL) elements 277 * if NumElements is greater than the package list length. Likewise, 278 * Package is truncated if NumElements is less than the list length. 279 */ 280 for (i = 0; Arg && (i < ElementCount); i++) 281 { 282 if (Arg->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) 283 { 284 if (Arg->Common.Node->Type == ACPI_TYPE_METHOD) 285 { 286 /* 287 * A method reference "looks" to the parser to be a method 288 * invocation, so we special case it here 289 */ 290 Arg->Common.AmlOpcode = AML_INT_NAMEPATH_OP; 291 Status = AcpiDsBuildInternalObject ( 292 WalkState, Arg, &ObjDesc->Package.Elements[i]); 293 } 294 else 295 { 296 /* This package element is already built, just get it */ 297 298 ObjDesc->Package.Elements[i] = 299 ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node); 300 } 301 } 302 else 303 { 304 Status = AcpiDsBuildInternalObject ( 305 WalkState, Arg, &ObjDesc->Package.Elements[i]); 306 if (Status == AE_NOT_FOUND) 307 { 308 ACPI_ERROR ((AE_INFO, "%-48s", "****DS namepath not found")); 309 } 310 311 /* 312 * Initialize this package element. This function handles the 313 * resolution of named references within the package. 314 */ 315 AcpiDsInitPackageElement (0, ObjDesc->Package.Elements[i], 316 NULL, &ObjDesc->Package.Elements[i]); 317 } 318 319 if (*ObjDescPtr) 320 { 321 /* Existing package, get existing reference count */ 322 323 ReferenceCount = (*ObjDescPtr)->Common.ReferenceCount; 324 if (ReferenceCount > 1) 325 { 326 /* Make new element ref count match original ref count */ 327 /* TBD: Probably need an AcpiUtAddReferences function */ 328 329 for (Index = 0; Index < ((UINT32) ReferenceCount - 1); Index++) 330 { 331 AcpiUtAddReference ((ObjDesc->Package.Elements[i])); 332 } 333 } 334 } 335 336 Arg = Arg->Common.Next; 337 } 338 339 /* Check for match between NumElements and actual length of PackageList */ 340 341 if (Arg) 342 { 343 /* 344 * NumElements was exhausted, but there are remaining elements in 345 * the PackageList. Truncate the package to NumElements. 346 * 347 * Note: technically, this is an error, from ACPI spec: "It is an 348 * error for NumElements to be less than the number of elements in 349 * the PackageList". However, we just print a message and no 350 * exception is returned. This provides compatibility with other 351 * ACPI implementations. Some firmware implementations will alter 352 * the NumElements on the fly, possibly creating this type of 353 * ill-formed package object. 354 */ 355 while (Arg) 356 { 357 /* 358 * We must delete any package elements that were created earlier 359 * and are not going to be used because of the package truncation. 360 */ 361 if (Arg->Common.Node) 362 { 363 AcpiUtRemoveReference ( 364 ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, Arg->Common.Node)); 365 Arg->Common.Node = NULL; 366 } 367 368 /* Find out how many elements there really are */ 369 370 i++; 371 Arg = Arg->Common.Next; 372 } 373 374 ACPI_INFO (( 375 "Actual Package length (%u) is larger than " 376 "NumElements field (%u), truncated", 377 i, ElementCount)); 378 } 379 else if (i < ElementCount) 380 { 381 /* 382 * Arg list (elements) was exhausted, but we did not reach 383 * NumElements count. 384 * 385 * Note: this is not an error, the package is padded out 386 * with NULLs. 387 */ 388 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, 389 "Package List length (%u) smaller than NumElements " 390 "count (%u), padded with null elements\n", 391 i, ElementCount)); 392 } 393 394 ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID; 395 Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjDesc); 396 return_ACPI_STATUS (Status); 397} 398 399 400/******************************************************************************* 401 * 402 * FUNCTION: AcpiDsInitPackageElement 403 * 404 * PARAMETERS: ACPI_PKG_CALLBACK 405 * 406 * RETURN: Status 407 * 408 * DESCRIPTION: Resolve a named reference element within a package object 409 * 410 ******************************************************************************/ 411 412ACPI_STATUS 413AcpiDsInitPackageElement ( 414 UINT8 ObjectType, 415 ACPI_OPERAND_OBJECT *SourceObject, 416 ACPI_GENERIC_STATE *State, 417 void *Context) 418{ 419 ACPI_OPERAND_OBJECT **ElementPtr; 420 421 422 ACPI_FUNCTION_TRACE (DsInitPackageElement); 423 424 425 if (!SourceObject) 426 { 427 return_ACPI_STATUS (AE_OK); 428 } 429 430 /* 431 * The following code is a bit of a hack to workaround a (current) 432 * limitation of the ACPI_PKG_CALLBACK interface. We need a pointer 433 * to the location within the element array because a new object 434 * may be created and stored there. 435 */ 436 if (Context) 437 { 438 /* A direct call was made to this function */ 439 440 ElementPtr = (ACPI_OPERAND_OBJECT **) Context; 441 } 442 else 443 { 444 /* Call came from AcpiUtWalkPackageTree */ 445 446 ElementPtr = State->Pkg.ThisTargetObj; 447 } 448 449 /* We are only interested in reference objects/elements */ 450 451 if (SourceObject->Common.Type == ACPI_TYPE_LOCAL_REFERENCE) 452 { 453 /* Attempt to resolve the (named) reference to a namespace node */ 454 455 AcpiDsResolvePackageElement (ElementPtr); 456 } 457 else if (SourceObject->Common.Type == ACPI_TYPE_PACKAGE) 458 { 459 SourceObject->Package.Flags |= AOPOBJ_DATA_VALID; 460 } 461 462 return_ACPI_STATUS (AE_OK); 463} 464 465 466/******************************************************************************* 467 * 468 * FUNCTION: AcpiDsResolvePackageElement 469 * 470 * PARAMETERS: ElementPtr - Pointer to a reference object 471 * 472 * RETURN: Possible new element is stored to the indirect ElementPtr 473 * 474 * DESCRIPTION: Resolve a package element that is a reference to a named 475 * object. 476 * 477 ******************************************************************************/ 478 479static void 480AcpiDsResolvePackageElement ( 481 ACPI_OPERAND_OBJECT **ElementPtr) 482{ 483 ACPI_STATUS Status; 484 ACPI_GENERIC_STATE ScopeInfo; 485 ACPI_OPERAND_OBJECT *Element = *ElementPtr; 486 ACPI_NAMESPACE_NODE *ResolvedNode; 487 ACPI_NAMESPACE_NODE *OriginalNode; 488 char *ExternalPath = NULL; 489 ACPI_OBJECT_TYPE Type; 490 491 492 ACPI_FUNCTION_TRACE (DsResolvePackageElement); 493 494 495 /* Check if reference element is already resolved */ 496 497 if (Element->Reference.Resolved) 498 { 499 return_VOID; 500 } 501 502 /* Element must be a reference object of correct type */ 503 504 ScopeInfo.Scope.Node = Element->Reference.Node; /* Prefix node */ 505 506 Status = AcpiNsLookup (&ScopeInfo, 507 (char *) Element->Reference.Aml, /* Pointer to AML path */ 508 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, 509 ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, 510 NULL, &ResolvedNode); 511 if (ACPI_FAILURE (Status)) 512 { 513 Status = AcpiNsExternalizeName (ACPI_UINT32_MAX, 514 (char *) Element->Reference.Aml, 515 NULL, &ExternalPath); 516 517 ACPI_EXCEPTION ((AE_INFO, Status, 518 "Could not find/resolve named package element: %s", ExternalPath)); 519 520 ACPI_FREE (ExternalPath); 521 *ElementPtr = NULL; 522 return_VOID; 523 } 524 else if (ResolvedNode->Type == ACPI_TYPE_ANY) 525 { 526 /* Named reference not resolved, return a NULL package element */ 527 528 ACPI_ERROR ((AE_INFO, 529 "Could not resolve named package element [%4.4s] in [%4.4s]", 530 ResolvedNode->Name.Ascii, ScopeInfo.Scope.Node->Name.Ascii)); 531 *ElementPtr = NULL; 532 return_VOID; 533 } 534#if 0 535 else if (ResolvedNode->Flags & ANOBJ_TEMPORARY) 536 { 537 /* 538 * A temporary node found here indicates that the reference is 539 * to a node that was created within this method. We are not 540 * going to allow it (especially if the package is returned 541 * from the method) -- the temporary node will be deleted out 542 * from under the method. (05/2017). 543 */ 544 ACPI_ERROR ((AE_INFO, 545 "Package element refers to a temporary name [%4.4s], " 546 "inserting a NULL element", 547 ResolvedNode->Name.Ascii)); 548 *ElementPtr = NULL; 549 return_VOID; 550 } 551#endif 552 553 /* 554 * Special handling for Alias objects. We need ResolvedNode to point 555 * to the Alias target. This effectively "resolves" the alias. 556 */ 557 if (ResolvedNode->Type == ACPI_TYPE_LOCAL_ALIAS) 558 { 559 ResolvedNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 560 ResolvedNode->Object); 561 } 562 563 /* Update the reference object */ 564 565 Element->Reference.Resolved = TRUE; 566 Element->Reference.Node = ResolvedNode; 567 Type = Element->Reference.Node->Type; 568 569 /* 570 * Attempt to resolve the node to a value before we insert it into 571 * the package. If this is a reference to a common data type, 572 * resolve it immediately. According to the ACPI spec, package 573 * elements can only be "data objects" or method references. 574 * Attempt to resolve to an Integer, Buffer, String or Package. 575 * If cannot, return the named reference (for things like Devices, 576 * Methods, etc.) Buffer Fields and Fields will resolve to simple 577 * objects (int/buf/str/pkg). 578 * 579 * NOTE: References to things like Devices, Methods, Mutexes, etc. 580 * will remain as named references. This behavior is not described 581 * in the ACPI spec, but it appears to be an oversight. 582 */ 583 OriginalNode = ResolvedNode; 584 Status = AcpiExResolveNodeToValue (&ResolvedNode, NULL); 585 if (ACPI_FAILURE (Status)) 586 { 587 return_VOID; 588 } 589 590#if 0 591/* TBD - alias support */ 592 /* 593 * Special handling for Alias objects. We need to setup the type 594 * and the Op->Common.Node to point to the Alias target. Note, 595 * Alias has at most one level of indirection internally. 596 */ 597 Type = Op->Common.Node->Type; 598 if (Type == ACPI_TYPE_LOCAL_ALIAS) 599 { 600 Type = ObjDesc->Common.Type; 601 Op->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, 602 Op->Common.Node->Object); 603 } 604#endif 605 606 switch (Type) 607 { 608 /* 609 * These object types are a result of named references, so we will 610 * leave them as reference objects. In other words, these types 611 * have no intrinsic "value". 612 */ 613 case ACPI_TYPE_DEVICE: 614 case ACPI_TYPE_THERMAL: 615 case ACPI_TYPE_METHOD: 616 break; 617 618 case ACPI_TYPE_MUTEX: 619 case ACPI_TYPE_POWER: 620 case ACPI_TYPE_PROCESSOR: 621 case ACPI_TYPE_EVENT: 622 case ACPI_TYPE_REGION: 623 624 /* AcpiExResolveNodeToValue gave these an extra reference */ 625 626 AcpiUtRemoveReference (OriginalNode->Object); 627 break; 628 629 default: 630 /* 631 * For all other types - the node was resolved to an actual 632 * operand object with a value, return the object. Remove 633 * a reference on the existing object. 634 */ 635 AcpiUtRemoveReference (Element); 636 *ElementPtr = (ACPI_OPERAND_OBJECT *) ResolvedNode; 637 break; 638 } 639 640 return_VOID; 641} 642