1 /****************************************************************************** 2 * 3 * Module Name: evrgnini- ACPI AddressSpace (OpRegion) init 4 * $Revision: 1.85 $ 5 * 6 *****************************************************************************/ 7 8 /****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 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 *****************************************************************************/ 116 117 118 #define __EVRGNINI_C__ 119 120 #include "acpi.h" 121 #include "acevents.h" 122 #include "acnamesp.h" 123 124 #define _COMPONENT ACPI_EVENTS 125 ACPI_MODULE_NAME ("evrgnini") 126 127 128 /******************************************************************************* 129 * 130 * FUNCTION: AcpiEvSystemMemoryRegionSetup 131 * 132 * PARAMETERS: Handle - Region we are interested in 133 * Function - Start or stop 134 * HandlerContext - Address space handler context 135 * RegionContext - Region specific context 136 * 137 * RETURN: Status 138 * 139 * DESCRIPTION: Setup a SystemMemory operation region 140 * 141 ******************************************************************************/ 142 143 ACPI_STATUS 144 AcpiEvSystemMemoryRegionSetup ( 145 ACPI_HANDLE Handle, 146 UINT32 Function, 147 void *HandlerContext, 148 void **RegionContext) 149 { 150 ACPI_OPERAND_OBJECT *RegionDesc = (ACPI_OPERAND_OBJECT *) Handle; 151 ACPI_MEM_SPACE_CONTEXT *LocalRegionContext; 152 153 154 ACPI_FUNCTION_TRACE (EvSystemMemoryRegionSetup); 155 156 157 if (Function == ACPI_REGION_DEACTIVATE) 158 { 159 if (*RegionContext) 160 { 161 LocalRegionContext = (ACPI_MEM_SPACE_CONTEXT *) *RegionContext; 162 163 /* Delete a cached mapping if present */ 164 165 if (LocalRegionContext->MappedLength) 166 { 167 AcpiOsUnmapMemory (LocalRegionContext->MappedLogicalAddress, 168 LocalRegionContext->MappedLength); 169 } 170 ACPI_FREE (LocalRegionContext); 171 *RegionContext = NULL; 172 } 173 return_ACPI_STATUS (AE_OK); 174 } 175 176 /* Create a new context */ 177 178 LocalRegionContext = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_MEM_SPACE_CONTEXT)); 179 if (!(LocalRegionContext)) 180 { 181 return_ACPI_STATUS (AE_NO_MEMORY); 182 } 183 184 /* Save the region length and address for use in the handler */ 185 186 LocalRegionContext->Length = RegionDesc->Region.Length; 187 LocalRegionContext->Address = RegionDesc->Region.Address; 188 189 *RegionContext = LocalRegionContext; 190 return_ACPI_STATUS (AE_OK); 191 } 192 193 194 /******************************************************************************* 195 * 196 * FUNCTION: AcpiEvIoSpaceRegionSetup 197 * 198 * PARAMETERS: Handle - Region we are interested in 199 * Function - Start or stop 200 * HandlerContext - Address space handler context 201 * RegionContext - Region specific context 202 * 203 * RETURN: Status 204 * 205 * DESCRIPTION: Setup a IO operation region 206 * 207 ******************************************************************************/ 208 209 ACPI_STATUS 210 AcpiEvIoSpaceRegionSetup ( 211 ACPI_HANDLE Handle, 212 UINT32 Function, 213 void *HandlerContext, 214 void **RegionContext) 215 { 216 ACPI_FUNCTION_TRACE (EvIoSpaceRegionSetup); 217 218 219 if (Function == ACPI_REGION_DEACTIVATE) 220 { 221 *RegionContext = NULL; 222 } 223 else 224 { 225 *RegionContext = HandlerContext; 226 } 227 228 return_ACPI_STATUS (AE_OK); 229 } 230 231 232 /******************************************************************************* 233 * 234 * FUNCTION: AcpiEvPciConfigRegionSetup 235 * 236 * PARAMETERS: Handle - Region we are interested in 237 * Function - Start or stop 238 * HandlerContext - Address space handler context 239 * RegionContext - Region specific context 240 * 241 * RETURN: Status 242 * 243 * DESCRIPTION: Setup a PCI_Config operation region 244 * 245 * MUTEX: Assumes namespace is not locked 246 * 247 ******************************************************************************/ 248 249 ACPI_STATUS 250 AcpiEvPciConfigRegionSetup ( 251 ACPI_HANDLE Handle, 252 UINT32 Function, 253 void *HandlerContext, 254 void **RegionContext) 255 { 256 ACPI_STATUS Status = AE_OK; 257 ACPI_INTEGER PciValue; 258 ACPI_PCI_ID *PciId = *RegionContext; 259 ACPI_OPERAND_OBJECT *HandlerObj; 260 ACPI_NAMESPACE_NODE *ParentNode; 261 ACPI_NAMESPACE_NODE *PciRootNode; 262 ACPI_OPERAND_OBJECT *RegionObj = (ACPI_OPERAND_OBJECT *) Handle; 263 ACPI_DEVICE_ID ObjectHID; 264 265 266 ACPI_FUNCTION_TRACE (EvPciConfigRegionSetup); 267 268 269 HandlerObj = RegionObj->Region.Handler; 270 if (!HandlerObj) 271 { 272 /* 273 * No installed handler. This shouldn't happen because the dispatch 274 * routine checks before we get here, but we check again just in case. 275 */ 276 ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 277 "Attempting to init a region %p, with no handler\n", RegionObj)); 278 return_ACPI_STATUS (AE_NOT_EXIST); 279 } 280 281 *RegionContext = NULL; 282 if (Function == ACPI_REGION_DEACTIVATE) 283 { 284 if (PciId) 285 { 286 ACPI_FREE (PciId); 287 } 288 return_ACPI_STATUS (Status); 289 } 290 291 ParentNode = AcpiNsGetParentNode (RegionObj->Region.Node); 292 293 /* 294 * Get the _SEG and _BBN values from the device upon which the handler 295 * is installed. 296 * 297 * We need to get the _SEG and _BBN objects relative to the PCI BUS device. 298 * This is the device the handler has been registered to handle. 299 */ 300 301 /* 302 * If the AddressSpace.Node is still pointing to the root, we need 303 * to scan upward for a PCI Root bridge and re-associate the OpRegion 304 * handlers with that device. 305 */ 306 if (HandlerObj->AddressSpace.Node == AcpiGbl_RootNode) 307 { 308 /* Start search from the parent object */ 309 310 PciRootNode = ParentNode; 311 while (PciRootNode != AcpiGbl_RootNode) 312 { 313 Status = AcpiUtExecute_HID (PciRootNode, &ObjectHID); 314 if (ACPI_SUCCESS (Status)) 315 { 316 /* 317 * Got a valid _HID string, check if this is a PCI root. 318 * New for ACPI 3.0: check for a PCI Express root also. 319 */ 320 if (!(ACPI_STRNCMP (ObjectHID.Value, PCI_ROOT_HID_STRING, 321 sizeof (PCI_ROOT_HID_STRING)) || 322 !(ACPI_STRNCMP (ObjectHID.Value, PCI_EXPRESS_ROOT_HID_STRING, 323 sizeof (PCI_EXPRESS_ROOT_HID_STRING))))) 324 { 325 /* Install a handler for this PCI root bridge */ 326 327 Status = AcpiInstallAddressSpaceHandler ((ACPI_HANDLE) PciRootNode, 328 ACPI_ADR_SPACE_PCI_CONFIG, 329 ACPI_DEFAULT_HANDLER, NULL, NULL); 330 if (ACPI_FAILURE (Status)) 331 { 332 if (Status == AE_SAME_HANDLER) 333 { 334 /* 335 * It is OK if the handler is already installed on the root 336 * bridge. Still need to return a context object for the 337 * new PCI_Config operation region, however. 338 */ 339 Status = AE_OK; 340 } 341 else 342 { 343 ACPI_EXCEPTION ((AE_INFO, Status, 344 "Could not install PciConfig handler for Root Bridge %4.4s", 345 AcpiUtGetNodeName (PciRootNode))); 346 } 347 } 348 break; 349 } 350 } 351 352 PciRootNode = AcpiNsGetParentNode (PciRootNode); 353 } 354 355 /* PCI root bridge not found, use namespace root node */ 356 } 357 else 358 { 359 PciRootNode = HandlerObj->AddressSpace.Node; 360 } 361 362 /* 363 * If this region is now initialized, we are done. 364 * (InstallAddressSpaceHandler could have initialized it) 365 */ 366 if (RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE) 367 { 368 return_ACPI_STATUS (AE_OK); 369 } 370 371 /* Region is still not initialized. Create a new context */ 372 373 PciId = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PCI_ID)); 374 if (!PciId) 375 { 376 return_ACPI_STATUS (AE_NO_MEMORY); 377 } 378 379 /* 380 * For PCI_Config space access, we need the segment, bus, 381 * device and function numbers. Acquire them here. 382 */ 383 384 /* 385 * Get the PCI device and function numbers from the _ADR object 386 * contained in the parent's scope. 387 */ 388 Status = AcpiUtEvaluateNumericObject (METHOD_NAME__ADR, ParentNode, &PciValue); 389 390 /* 391 * The default is zero, and since the allocation above zeroed 392 * the data, just do nothing on failure. 393 */ 394 if (ACPI_SUCCESS (Status)) 395 { 396 PciId->Device = ACPI_HIWORD (ACPI_LODWORD (PciValue)); 397 PciId->Function = ACPI_LOWORD (ACPI_LODWORD (PciValue)); 398 } 399 400 /* The PCI segment number comes from the _SEG method */ 401 402 Status = AcpiUtEvaluateNumericObject (METHOD_NAME__SEG, PciRootNode, &PciValue); 403 if (ACPI_SUCCESS (Status)) 404 { 405 PciId->Segment = ACPI_LOWORD (PciValue); 406 } 407 408 /* The PCI bus number comes from the _BBN method */ 409 410 Status = AcpiUtEvaluateNumericObject (METHOD_NAME__BBN, PciRootNode, &PciValue); 411 if (ACPI_SUCCESS (Status)) 412 { 413 PciId->Bus = ACPI_LOWORD (PciValue); 414 } 415 416 /* Complete this device's PciId */ 417 418 AcpiOsDerivePciId (PciRootNode, RegionObj->Region.Node, &PciId); 419 420 *RegionContext = PciId; 421 return_ACPI_STATUS (AE_OK); 422 } 423 424 425 /******************************************************************************* 426 * 427 * FUNCTION: AcpiEvPciBarRegionSetup 428 * 429 * PARAMETERS: Handle - Region we are interested in 430 * Function - Start or stop 431 * HandlerContext - Address space handler context 432 * RegionContext - Region specific context 433 * 434 * RETURN: Status 435 * 436 * DESCRIPTION: Setup a PciBAR operation region 437 * 438 * MUTEX: Assumes namespace is not locked 439 * 440 ******************************************************************************/ 441 442 ACPI_STATUS 443 AcpiEvPciBarRegionSetup ( 444 ACPI_HANDLE Handle, 445 UINT32 Function, 446 void *HandlerContext, 447 void **RegionContext) 448 { 449 ACPI_FUNCTION_TRACE (EvPciBarRegionSetup); 450 451 452 return_ACPI_STATUS (AE_OK); 453 } 454 455 456 /******************************************************************************* 457 * 458 * FUNCTION: AcpiEvCmosRegionSetup 459 * 460 * PARAMETERS: Handle - Region we are interested in 461 * Function - Start or stop 462 * HandlerContext - Address space handler context 463 * RegionContext - Region specific context 464 * 465 * RETURN: Status 466 * 467 * DESCRIPTION: Setup a CMOS operation region 468 * 469 * MUTEX: Assumes namespace is not locked 470 * 471 ******************************************************************************/ 472 473 ACPI_STATUS 474 AcpiEvCmosRegionSetup ( 475 ACPI_HANDLE Handle, 476 UINT32 Function, 477 void *HandlerContext, 478 void **RegionContext) 479 { 480 ACPI_FUNCTION_TRACE (EvCmosRegionSetup); 481 482 483 return_ACPI_STATUS (AE_OK); 484 } 485 486 487 /******************************************************************************* 488 * 489 * FUNCTION: AcpiEvDefaultRegionSetup 490 * 491 * PARAMETERS: Handle - Region we are interested in 492 * Function - Start or stop 493 * HandlerContext - Address space handler context 494 * RegionContext - Region specific context 495 * 496 * RETURN: Status 497 * 498 * DESCRIPTION: Default region initialization 499 * 500 ******************************************************************************/ 501 502 ACPI_STATUS 503 AcpiEvDefaultRegionSetup ( 504 ACPI_HANDLE Handle, 505 UINT32 Function, 506 void *HandlerContext, 507 void **RegionContext) 508 { 509 ACPI_FUNCTION_TRACE (EvDefaultRegionSetup); 510 511 512 if (Function == ACPI_REGION_DEACTIVATE) 513 { 514 *RegionContext = NULL; 515 } 516 else 517 { 518 *RegionContext = HandlerContext; 519 } 520 521 return_ACPI_STATUS (AE_OK); 522 } 523 524 525 /******************************************************************************* 526 * 527 * FUNCTION: AcpiEvInitializeRegion 528 * 529 * PARAMETERS: RegionObj - Region we are initializing 530 * AcpiNsLocked - Is namespace locked? 531 * 532 * RETURN: Status 533 * 534 * DESCRIPTION: Initializes the region, finds any _REG methods and saves them 535 * for execution at a later time 536 * 537 * Get the appropriate address space handler for a newly 538 * created region. 539 * 540 * This also performs address space specific initialization. For 541 * example, PCI regions must have an _ADR object that contains 542 * a PCI address in the scope of the definition. This address is 543 * required to perform an access to PCI config space. 544 * 545 * MUTEX: Interpreter should be unlocked, because we may run the _REG 546 * method for this region. 547 * 548 ******************************************************************************/ 549 550 ACPI_STATUS 551 AcpiEvInitializeRegion ( 552 ACPI_OPERAND_OBJECT *RegionObj, 553 BOOLEAN AcpiNsLocked) 554 { 555 ACPI_OPERAND_OBJECT *HandlerObj; 556 ACPI_OPERAND_OBJECT *ObjDesc; 557 ACPI_ADR_SPACE_TYPE SpaceId; 558 ACPI_NAMESPACE_NODE *Node; 559 ACPI_STATUS Status; 560 ACPI_NAMESPACE_NODE *MethodNode; 561 ACPI_NAME *RegNamePtr = (ACPI_NAME *) METHOD_NAME__REG; 562 ACPI_OPERAND_OBJECT *RegionObj2; 563 564 565 ACPI_FUNCTION_TRACE_U32 (EvInitializeRegion, AcpiNsLocked); 566 567 568 if (!RegionObj) 569 { 570 return_ACPI_STATUS (AE_BAD_PARAMETER); 571 } 572 573 if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED) 574 { 575 return_ACPI_STATUS (AE_OK); 576 } 577 578 RegionObj2 = AcpiNsGetSecondaryObject (RegionObj); 579 if (!RegionObj2) 580 { 581 return_ACPI_STATUS (AE_NOT_EXIST); 582 } 583 584 Node = AcpiNsGetParentNode (RegionObj->Region.Node); 585 SpaceId = RegionObj->Region.SpaceId; 586 587 /* Setup defaults */ 588 589 RegionObj->Region.Handler = NULL; 590 RegionObj2->Extra.Method_REG = NULL; 591 RegionObj->Common.Flags &= ~(AOPOBJ_SETUP_COMPLETE); 592 RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED; 593 594 /* Find any "_REG" method associated with this region definition */ 595 596 Status = AcpiNsSearchOneScope ( 597 *RegNamePtr, Node, ACPI_TYPE_METHOD, &MethodNode); 598 if (ACPI_SUCCESS (Status)) 599 { 600 /* 601 * The _REG method is optional and there can be only one per region 602 * definition. This will be executed when the handler is attached 603 * or removed 604 */ 605 RegionObj2->Extra.Method_REG = MethodNode; 606 } 607 608 /* 609 * The following loop depends upon the root Node having no parent 610 * ie: AcpiGbl_RootNode->ParentEntry being set to NULL 611 */ 612 while (Node) 613 { 614 /* Check to see if a handler exists */ 615 616 HandlerObj = NULL; 617 ObjDesc = AcpiNsGetAttachedObject (Node); 618 if (ObjDesc) 619 { 620 /* Can only be a handler if the object exists */ 621 622 switch (Node->Type) 623 { 624 case ACPI_TYPE_DEVICE: 625 626 HandlerObj = ObjDesc->Device.Handler; 627 break; 628 629 case ACPI_TYPE_PROCESSOR: 630 631 HandlerObj = ObjDesc->Processor.Handler; 632 break; 633 634 case ACPI_TYPE_THERMAL: 635 636 HandlerObj = ObjDesc->ThermalZone.Handler; 637 break; 638 639 default: 640 /* Ignore other objects */ 641 break; 642 } 643 644 while (HandlerObj) 645 { 646 /* Is this handler of the correct type? */ 647 648 if (HandlerObj->AddressSpace.SpaceId == SpaceId) 649 { 650 /* Found correct handler */ 651 652 ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 653 "Found handler %p for region %p in obj %p\n", 654 HandlerObj, RegionObj, ObjDesc)); 655 656 Status = AcpiEvAttachRegion (HandlerObj, RegionObj, 657 AcpiNsLocked); 658 659 /* 660 * Tell all users that this region is usable by running the _REG 661 * method 662 */ 663 if (AcpiNsLocked) 664 { 665 Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); 666 if (ACPI_FAILURE (Status)) 667 { 668 return_ACPI_STATUS (Status); 669 } 670 } 671 672 Status = AcpiEvExecuteRegMethod (RegionObj, 1); 673 674 if (AcpiNsLocked) 675 { 676 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); 677 if (ACPI_FAILURE (Status)) 678 { 679 return_ACPI_STATUS (Status); 680 } 681 } 682 683 return_ACPI_STATUS (AE_OK); 684 } 685 686 /* Try next handler in the list */ 687 688 HandlerObj = HandlerObj->AddressSpace.Next; 689 } 690 } 691 692 /* 693 * This node does not have the handler we need; 694 * Pop up one level 695 */ 696 Node = AcpiNsGetParentNode (Node); 697 } 698 699 /* If we get here, there is no handler for this region */ 700 701 ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, 702 "No handler for RegionType %s(%X) (RegionObj %p)\n", 703 AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj)); 704 705 return_ACPI_STATUS (AE_NOT_EXIST); 706 } 707 708