1 /****************************************************************************** 2 * 3 * Module Name: excreate - Named object creation 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2021, 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 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 ***************************************************************************** 116 * 117 * Alternatively, you may choose to be licensed under the terms of the 118 * following license: 119 * 120 * Redistribution and use in source and binary forms, with or without 121 * modification, are permitted provided that the following conditions 122 * are met: 123 * 1. Redistributions of source code must retain the above copyright 124 * notice, this list of conditions, and the following disclaimer, 125 * without modification. 126 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 127 * substantially similar to the "NO WARRANTY" disclaimer below 128 * ("Disclaimer") and any redistribution must be conditioned upon 129 * including a substantially similar Disclaimer requirement for further 130 * binary redistribution. 131 * 3. Neither the names of the above-listed copyright holders nor the names 132 * of any contributors may be used to endorse or promote products derived 133 * from this software without specific prior written permission. 134 * 135 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 136 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 137 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 138 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 139 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 140 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 141 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 142 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 143 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 144 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 145 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 146 * 147 * Alternatively, you may choose to be licensed under the terms of the 148 * GNU General Public License ("GPL") version 2 as published by the Free 149 * Software Foundation. 150 * 151 *****************************************************************************/ 152 153 #include <contrib/dev/acpica/include/acpi.h> 154 #include <contrib/dev/acpica/include/accommon.h> 155 #include <contrib/dev/acpica/include/acinterp.h> 156 #include <contrib/dev/acpica/include/amlcode.h> 157 #include <contrib/dev/acpica/include/acnamesp.h> 158 159 160 #define _COMPONENT ACPI_EXECUTER 161 ACPI_MODULE_NAME ("excreate") 162 163 164 /******************************************************************************* 165 * 166 * FUNCTION: AcpiExCreateAlias 167 * 168 * PARAMETERS: WalkState - Current state, contains operands 169 * 170 * RETURN: Status 171 * 172 * DESCRIPTION: Create a new named alias 173 * 174 ******************************************************************************/ 175 176 ACPI_STATUS 177 AcpiExCreateAlias ( 178 ACPI_WALK_STATE *WalkState) 179 { 180 ACPI_NAMESPACE_NODE *TargetNode; 181 ACPI_NAMESPACE_NODE *AliasNode; 182 ACPI_STATUS Status = AE_OK; 183 184 185 ACPI_FUNCTION_TRACE (ExCreateAlias); 186 187 188 /* Get the source/alias operands (both namespace nodes) */ 189 190 AliasNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0]; 191 TargetNode = (ACPI_NAMESPACE_NODE *) WalkState->Operands[1]; 192 193 if ((TargetNode->Type == ACPI_TYPE_LOCAL_ALIAS) || 194 (TargetNode->Type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) 195 { 196 /* 197 * Dereference an existing alias so that we don't create a chain 198 * of aliases. With this code, we guarantee that an alias is 199 * always exactly one level of indirection away from the 200 * actual aliased name. 201 */ 202 TargetNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, TargetNode->Object); 203 } 204 205 /* Ensure that the target node is valid */ 206 207 if (!TargetNode) 208 { 209 return_ACPI_STATUS (AE_NULL_OBJECT); 210 } 211 212 /* Construct the alias object (a namespace node) */ 213 214 switch (TargetNode->Type) 215 { 216 case ACPI_TYPE_METHOD: 217 /* 218 * Control method aliases need to be differentiated with 219 * a special type 220 */ 221 AliasNode->Type = ACPI_TYPE_LOCAL_METHOD_ALIAS; 222 break; 223 224 default: 225 /* 226 * All other object types. 227 * 228 * The new alias has the type ALIAS and points to the original 229 * NS node, not the object itself. 230 */ 231 AliasNode->Type = ACPI_TYPE_LOCAL_ALIAS; 232 AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode); 233 break; 234 } 235 236 /* Since both operands are Nodes, we don't need to delete them */ 237 238 AliasNode->Object = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, TargetNode); 239 return_ACPI_STATUS (Status); 240 } 241 242 243 /******************************************************************************* 244 * 245 * FUNCTION: AcpiExCreateEvent 246 * 247 * PARAMETERS: WalkState - Current state 248 * 249 * RETURN: Status 250 * 251 * DESCRIPTION: Create a new event object 252 * 253 ******************************************************************************/ 254 255 ACPI_STATUS 256 AcpiExCreateEvent ( 257 ACPI_WALK_STATE *WalkState) 258 { 259 ACPI_STATUS Status; 260 ACPI_OPERAND_OBJECT *ObjDesc; 261 262 263 ACPI_FUNCTION_TRACE (ExCreateEvent); 264 265 266 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_EVENT); 267 if (!ObjDesc) 268 { 269 Status = AE_NO_MEMORY; 270 goto Cleanup; 271 } 272 273 /* 274 * Create the actual OS semaphore, with zero initial units -- meaning 275 * that the event is created in an unsignalled state 276 */ 277 Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0, 278 &ObjDesc->Event.OsSemaphore); 279 if (ACPI_FAILURE (Status)) 280 { 281 goto Cleanup; 282 } 283 284 /* Attach object to the Node */ 285 286 Status = AcpiNsAttachObject ( 287 (ACPI_NAMESPACE_NODE *) WalkState->Operands[0], 288 ObjDesc, ACPI_TYPE_EVENT); 289 290 Cleanup: 291 /* 292 * Remove local reference to the object (on error, will cause deletion 293 * of both object and semaphore if present.) 294 */ 295 AcpiUtRemoveReference (ObjDesc); 296 return_ACPI_STATUS (Status); 297 } 298 299 300 /******************************************************************************* 301 * 302 * FUNCTION: AcpiExCreateMutex 303 * 304 * PARAMETERS: WalkState - Current state 305 * 306 * RETURN: Status 307 * 308 * DESCRIPTION: Create a new mutex object 309 * 310 * Mutex (Name[0], SyncLevel[1]) 311 * 312 ******************************************************************************/ 313 314 ACPI_STATUS 315 AcpiExCreateMutex ( 316 ACPI_WALK_STATE *WalkState) 317 { 318 ACPI_STATUS Status = AE_OK; 319 ACPI_OPERAND_OBJECT *ObjDesc; 320 321 322 ACPI_FUNCTION_TRACE_PTR (ExCreateMutex, ACPI_WALK_OPERANDS); 323 324 325 /* Create the new mutex object */ 326 327 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_MUTEX); 328 if (!ObjDesc) 329 { 330 Status = AE_NO_MEMORY; 331 goto Cleanup; 332 } 333 334 /* Create the actual OS Mutex */ 335 336 Status = AcpiOsCreateMutex (&ObjDesc->Mutex.OsMutex); 337 if (ACPI_FAILURE (Status)) 338 { 339 goto Cleanup; 340 } 341 342 /* Init object and attach to NS node */ 343 344 ObjDesc->Mutex.SyncLevel = (UINT8) WalkState->Operands[1]->Integer.Value; 345 ObjDesc->Mutex.Node = (ACPI_NAMESPACE_NODE *) WalkState->Operands[0]; 346 347 Status = AcpiNsAttachObject ( 348 ObjDesc->Mutex.Node, ObjDesc, ACPI_TYPE_MUTEX); 349 350 351 Cleanup: 352 /* 353 * Remove local reference to the object (on error, will cause deletion 354 * of both object and semaphore if present.) 355 */ 356 AcpiUtRemoveReference (ObjDesc); 357 return_ACPI_STATUS (Status); 358 } 359 360 361 /******************************************************************************* 362 * 363 * FUNCTION: AcpiExCreateRegion 364 * 365 * PARAMETERS: AmlStart - Pointer to the region declaration AML 366 * AmlLength - Max length of the declaration AML 367 * SpaceId - Address space ID for the region 368 * WalkState - Current state 369 * 370 * RETURN: Status 371 * 372 * DESCRIPTION: Create a new operation region object 373 * 374 ******************************************************************************/ 375 376 ACPI_STATUS 377 AcpiExCreateRegion ( 378 UINT8 *AmlStart, 379 UINT32 AmlLength, 380 UINT8 SpaceId, 381 ACPI_WALK_STATE *WalkState) 382 { 383 ACPI_STATUS Status; 384 ACPI_OPERAND_OBJECT *ObjDesc; 385 ACPI_NAMESPACE_NODE *Node; 386 ACPI_OPERAND_OBJECT *RegionObj2; 387 388 389 ACPI_FUNCTION_TRACE (ExCreateRegion); 390 391 392 /* Get the Namespace Node */ 393 394 Node = WalkState->Op->Common.Node; 395 396 /* 397 * If the region object is already attached to this node, 398 * just return 399 */ 400 if (AcpiNsGetAttachedObject (Node)) 401 { 402 return_ACPI_STATUS (AE_OK); 403 } 404 405 /* 406 * Space ID must be one of the predefined IDs, or in the user-defined 407 * range 408 */ 409 if (!AcpiIsValidSpaceId (SpaceId)) 410 { 411 /* 412 * Print an error message, but continue. We don't want to abort 413 * a table load for this exception. Instead, if the region is 414 * actually used at runtime, abort the executing method. 415 */ 416 ACPI_ERROR ((AE_INFO, 417 "Invalid/unknown Address Space ID: 0x%2.2X", SpaceId)); 418 } 419 420 ACPI_DEBUG_PRINT ((ACPI_DB_LOAD, "Region Type - %s (0x%X)\n", 421 AcpiUtGetRegionName (SpaceId), SpaceId)); 422 423 /* Create the region descriptor */ 424 425 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_REGION); 426 if (!ObjDesc) 427 { 428 Status = AE_NO_MEMORY; 429 goto Cleanup; 430 } 431 432 /* 433 * Remember location in AML stream of address & length 434 * operands since they need to be evaluated at run time. 435 */ 436 RegionObj2 = AcpiNsGetSecondaryObject (ObjDesc); 437 RegionObj2->Extra.AmlStart = AmlStart; 438 RegionObj2->Extra.AmlLength = AmlLength; 439 RegionObj2->Extra.Method_REG = NULL; 440 if (WalkState->ScopeInfo) 441 { 442 RegionObj2->Extra.ScopeNode = WalkState->ScopeInfo->Scope.Node; 443 } 444 else 445 { 446 RegionObj2->Extra.ScopeNode = Node; 447 } 448 449 /* Init the region from the operands */ 450 451 ObjDesc->Region.SpaceId = SpaceId; 452 ObjDesc->Region.Address = 0; 453 ObjDesc->Region.Length = 0; 454 ObjDesc->Region.Node = Node; 455 ObjDesc->Region.Handler = NULL; 456 ObjDesc->Common.Flags &= 457 ~(AOPOBJ_SETUP_COMPLETE | AOPOBJ_REG_CONNECTED | 458 AOPOBJ_OBJECT_INITIALIZED); 459 460 /* Install the new region object in the parent Node */ 461 462 Status = AcpiNsAttachObject (Node, ObjDesc, ACPI_TYPE_REGION); 463 464 465 Cleanup: 466 467 /* Remove local reference to the object */ 468 469 AcpiUtRemoveReference (ObjDesc); 470 return_ACPI_STATUS (Status); 471 } 472 473 474 /******************************************************************************* 475 * 476 * FUNCTION: AcpiExCreateProcessor 477 * 478 * PARAMETERS: WalkState - Current state 479 * 480 * RETURN: Status 481 * 482 * DESCRIPTION: Create a new processor object and populate the fields 483 * 484 * Processor (Name[0], CpuID[1], PblockAddr[2], PblockLength[3]) 485 * 486 ******************************************************************************/ 487 488 ACPI_STATUS 489 AcpiExCreateProcessor ( 490 ACPI_WALK_STATE *WalkState) 491 { 492 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 493 ACPI_OPERAND_OBJECT *ObjDesc; 494 ACPI_STATUS Status; 495 496 497 ACPI_FUNCTION_TRACE_PTR (ExCreateProcessor, WalkState); 498 499 500 /* Create the processor object */ 501 502 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PROCESSOR); 503 if (!ObjDesc) 504 { 505 return_ACPI_STATUS (AE_NO_MEMORY); 506 } 507 508 /* Initialize the processor object from the operands */ 509 510 ObjDesc->Processor.ProcId = (UINT8) Operand[1]->Integer.Value; 511 ObjDesc->Processor.Length = (UINT8) Operand[3]->Integer.Value; 512 ObjDesc->Processor.Address = (ACPI_IO_ADDRESS) Operand[2]->Integer.Value; 513 514 /* Install the processor object in the parent Node */ 515 516 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0], 517 ObjDesc, ACPI_TYPE_PROCESSOR); 518 519 /* Remove local reference to the object */ 520 521 AcpiUtRemoveReference (ObjDesc); 522 return_ACPI_STATUS (Status); 523 } 524 525 526 /******************************************************************************* 527 * 528 * FUNCTION: AcpiExCreatePowerResource 529 * 530 * PARAMETERS: WalkState - Current state 531 * 532 * RETURN: Status 533 * 534 * DESCRIPTION: Create a new PowerResource object and populate the fields 535 * 536 * PowerResource (Name[0], SystemLevel[1], ResourceOrder[2]) 537 * 538 ******************************************************************************/ 539 540 ACPI_STATUS 541 AcpiExCreatePowerResource ( 542 ACPI_WALK_STATE *WalkState) 543 { 544 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 545 ACPI_STATUS Status; 546 ACPI_OPERAND_OBJECT *ObjDesc; 547 548 549 ACPI_FUNCTION_TRACE_PTR (ExCreatePowerResource, WalkState); 550 551 552 /* Create the power resource object */ 553 554 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_POWER); 555 if (!ObjDesc) 556 { 557 return_ACPI_STATUS (AE_NO_MEMORY); 558 } 559 560 /* Initialize the power object from the operands */ 561 562 ObjDesc->PowerResource.SystemLevel = (UINT8) Operand[1]->Integer.Value; 563 ObjDesc->PowerResource.ResourceOrder = (UINT16) Operand[2]->Integer.Value; 564 565 /* Install the power resource object in the parent Node */ 566 567 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0], 568 ObjDesc, ACPI_TYPE_POWER); 569 570 /* Remove local reference to the object */ 571 572 AcpiUtRemoveReference (ObjDesc); 573 return_ACPI_STATUS (Status); 574 } 575 576 577 /******************************************************************************* 578 * 579 * FUNCTION: AcpiExCreateMethod 580 * 581 * PARAMETERS: AmlStart - First byte of the method's AML 582 * AmlLength - AML byte count for this method 583 * WalkState - Current state 584 * 585 * RETURN: Status 586 * 587 * DESCRIPTION: Create a new method object 588 * 589 ******************************************************************************/ 590 591 ACPI_STATUS 592 AcpiExCreateMethod ( 593 UINT8 *AmlStart, 594 UINT32 AmlLength, 595 ACPI_WALK_STATE *WalkState) 596 { 597 ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0]; 598 ACPI_OPERAND_OBJECT *ObjDesc; 599 ACPI_STATUS Status; 600 UINT8 MethodFlags; 601 602 603 ACPI_FUNCTION_TRACE_PTR (ExCreateMethod, WalkState); 604 605 606 /* Create a new method object */ 607 608 ObjDesc = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD); 609 if (!ObjDesc) 610 { 611 Status = AE_NO_MEMORY; 612 goto Exit; 613 } 614 615 /* Save the method's AML pointer and length */ 616 617 ObjDesc->Method.AmlStart = AmlStart; 618 ObjDesc->Method.AmlLength = AmlLength; 619 ObjDesc->Method.Node = Operand[0]; 620 621 /* 622 * Disassemble the method flags. Split off the ArgCount, Serialized 623 * flag, and SyncLevel for efficiency. 624 */ 625 MethodFlags = (UINT8) Operand[1]->Integer.Value; 626 ObjDesc->Method.ParamCount = (UINT8) 627 (MethodFlags & AML_METHOD_ARG_COUNT); 628 629 /* 630 * Get the SyncLevel. If method is serialized, a mutex will be 631 * created for this method when it is parsed. 632 */ 633 if (MethodFlags & AML_METHOD_SERIALIZED) 634 { 635 ObjDesc->Method.InfoFlags = ACPI_METHOD_SERIALIZED; 636 637 /* 638 * ACPI 1.0: SyncLevel = 0 639 * ACPI 2.0: SyncLevel = SyncLevel in method declaration 640 */ 641 ObjDesc->Method.SyncLevel = (UINT8) 642 ((MethodFlags & AML_METHOD_SYNC_LEVEL) >> 4); 643 } 644 645 /* Attach the new object to the method Node */ 646 647 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) Operand[0], 648 ObjDesc, ACPI_TYPE_METHOD); 649 650 /* Remove local reference to the object */ 651 652 AcpiUtRemoveReference (ObjDesc); 653 654 Exit: 655 /* Remove a reference to the operand */ 656 657 AcpiUtRemoveReference (Operand[1]); 658 return_ACPI_STATUS (Status); 659 } 660