/****************************************************************************** * * Module Name: utobject - ACPI object create/delete/size/cache routines * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2023, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * ***************************************************************************** * * Alternatively, you may choose to be licensed under the terms of the * following license: * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Alternatively, you may choose to be licensed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * *****************************************************************************/ #include "acpi.h" #include "accommon.h" #include "acnamesp.h" #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME ("utobject") /* Local prototypes */ static ACPI_STATUS AcpiUtGetSimpleObjectSize ( ACPI_OPERAND_OBJECT *Obj, ACPI_SIZE *ObjLength); static ACPI_STATUS AcpiUtGetPackageObjectSize ( ACPI_OPERAND_OBJECT *Obj, ACPI_SIZE *ObjLength); static ACPI_STATUS AcpiUtGetElementLength ( UINT8 ObjectType, ACPI_OPERAND_OBJECT *SourceObject, ACPI_GENERIC_STATE *State, void *Context); /******************************************************************************* * * FUNCTION: AcpiUtCreateInternalObjectDbg * * PARAMETERS: ModuleName - Source file name of caller * LineNumber - Line number of caller * ComponentId - Component type of caller * Type - ACPI Type of the new object * * RETURN: A new internal object, null on failure * * DESCRIPTION: Create and initialize a new internal object. * * NOTE: We always allocate the worst-case object descriptor because * these objects are cached, and we want them to be * one-size-satisfies-any-request. This in itself may not be * the most memory efficient, but the efficiency of the object * cache should more than make up for this! * ******************************************************************************/ ACPI_OPERAND_OBJECT * AcpiUtCreateInternalObjectDbg ( const char *ModuleName, UINT32 LineNumber, UINT32 ComponentId, ACPI_OBJECT_TYPE Type) { ACPI_OPERAND_OBJECT *Object; ACPI_OPERAND_OBJECT *SecondObject; ACPI_FUNCTION_TRACE_STR (UtCreateInternalObjectDbg, AcpiUtGetTypeName (Type)); /* Allocate the raw object descriptor */ Object = AcpiUtAllocateObjectDescDbg ( ModuleName, LineNumber, ComponentId); if (!Object) { return_PTR (NULL); } switch (Type) { case ACPI_TYPE_REGION: case ACPI_TYPE_BUFFER_FIELD: case ACPI_TYPE_LOCAL_BANK_FIELD: /* These types require a secondary object */ SecondObject = AcpiUtAllocateObjectDescDbg ( ModuleName, LineNumber, ComponentId); if (!SecondObject) { AcpiUtDeleteObjectDesc (Object); return_PTR (NULL); } SecondObject->Common.Type = ACPI_TYPE_LOCAL_EXTRA; SecondObject->Common.ReferenceCount = 1; /* Link the second object to the first */ Object->Common.NextObject = SecondObject; break; default: /* All others have no secondary object */ break; } /* Save the object type in the object descriptor */ Object->Common.Type = (UINT8) Type; /* Init the reference count */ Object->Common.ReferenceCount = 1; /* Any per-type initialization should go here */ return_PTR (Object); } /******************************************************************************* * * FUNCTION: AcpiUtCreatePackageObject * * PARAMETERS: Count - Number of package elements * * RETURN: Pointer to a new Package object, null on failure * * DESCRIPTION: Create a fully initialized package object * ******************************************************************************/ ACPI_OPERAND_OBJECT * AcpiUtCreatePackageObject ( UINT32 Count) { ACPI_OPERAND_OBJECT *PackageDesc; ACPI_OPERAND_OBJECT **PackageElements; ACPI_FUNCTION_TRACE_U32 (UtCreatePackageObject, Count); /* Create a new Package object */ PackageDesc = AcpiUtCreateInternalObject (ACPI_TYPE_PACKAGE); if (!PackageDesc) { return_PTR (NULL); } /* * Create the element array. Count+1 allows the array to be null * terminated. */ PackageElements = ACPI_ALLOCATE_ZEROED ( ((ACPI_SIZE) Count + 1) * sizeof (void *)); if (!PackageElements) { ACPI_FREE (PackageDesc); return_PTR (NULL); } PackageDesc->Package.Count = Count; PackageDesc->Package.Elements = PackageElements; return_PTR (PackageDesc); } /******************************************************************************* * * FUNCTION: AcpiUtCreateIntegerObject * * PARAMETERS: InitialValue - Initial value for the integer * * RETURN: Pointer to a new Integer object, null on failure * * DESCRIPTION: Create an initialized integer object * ******************************************************************************/ ACPI_OPERAND_OBJECT * AcpiUtCreateIntegerObject ( UINT64 InitialValue) { ACPI_OPERAND_OBJECT *IntegerDesc; ACPI_FUNCTION_TRACE (UtCreateIntegerObject); /* Create and initialize a new integer object */ IntegerDesc = AcpiUtCreateInternalObject (ACPI_TYPE_INTEGER); if (!IntegerDesc) { return_PTR (NULL); } IntegerDesc->Integer.Value = InitialValue; return_PTR (IntegerDesc); } /******************************************************************************* * * FUNCTION: AcpiUtCreateBufferObject * * PARAMETERS: BufferSize - Size of buffer to be created * * RETURN: Pointer to a new Buffer object, null on failure * * DESCRIPTION: Create a fully initialized buffer object * ******************************************************************************/ ACPI_OPERAND_OBJECT * AcpiUtCreateBufferObject ( ACPI_SIZE BufferSize) { ACPI_OPERAND_OBJECT *BufferDesc; UINT8 *Buffer = NULL; ACPI_FUNCTION_TRACE_U32 (UtCreateBufferObject, BufferSize); /* Create a new Buffer object */ BufferDesc = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); if (!BufferDesc) { return_PTR (NULL); } /* Create an actual buffer only if size > 0 */ if (BufferSize > 0) { /* Allocate the actual buffer */ Buffer = ACPI_ALLOCATE_ZEROED (BufferSize); if (!Buffer) { ACPI_ERROR ((AE_INFO, "Could not allocate size %u", (UINT32) BufferSize)); AcpiUtRemoveReference (BufferDesc); return_PTR (NULL); } } /* Complete buffer object initialization */ BufferDesc->Buffer.Flags |= AOPOBJ_DATA_VALID; BufferDesc->Buffer.Pointer = Buffer; BufferDesc->Buffer.Length = (UINT32) BufferSize; /* Return the new buffer descriptor */ return_PTR (BufferDesc); } /******************************************************************************* * * FUNCTION: AcpiUtCreateStringObject * * PARAMETERS: StringSize - Size of string to be created. Does not * include NULL terminator, this is added * automatically. * * RETURN: Pointer to a new String object * * DESCRIPTION: Create a fully initialized string object * ******************************************************************************/ ACPI_OPERAND_OBJECT * AcpiUtCreateStringObject ( ACPI_SIZE StringSize) { ACPI_OPERAND_OBJECT *StringDesc; char *String; ACPI_FUNCTION_TRACE_U32 (UtCreateStringObject, StringSize); /* Create a new String object */ StringDesc = AcpiUtCreateInternalObject (ACPI_TYPE_STRING); if (!StringDesc) { return_PTR (NULL); } /* * Allocate the actual string buffer -- (Size + 1) for NULL terminator. * NOTE: Zero-length strings are NULL terminated */ String = ACPI_ALLOCATE_ZEROED (StringSize + 1); if (!String) { ACPI_ERROR ((AE_INFO, "Could not allocate size %u", (UINT32) StringSize)); AcpiUtRemoveReference (StringDesc); return_PTR (NULL); } /* Complete string object initialization */ StringDesc->String.Pointer = String; StringDesc->String.Length = (UINT32) StringSize; /* Return the new string descriptor */ return_PTR (StringDesc); } /******************************************************************************* * * FUNCTION: AcpiUtValidInternalObject * * PARAMETERS: Object - Object to be validated * * RETURN: TRUE if object is valid, FALSE otherwise * * DESCRIPTION: Validate a pointer to be of type ACPI_OPERAND_OBJECT * ******************************************************************************/ BOOLEAN AcpiUtValidInternalObject ( void *Object) { ACPI_FUNCTION_NAME (UtValidInternalObject); /* Check for a null pointer */ if (!Object) { ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "**** Null Object Ptr\n")); return (FALSE); } /* Check the descriptor type field */ switch (ACPI_GET_DESCRIPTOR_TYPE (Object)) { case ACPI_DESC_TYPE_OPERAND: /* The object appears to be a valid ACPI_OPERAND_OBJECT */ return (TRUE); default: ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%p is not an ACPI operand obj [%s]\n", Object, AcpiUtGetDescriptorName (Object))); break; } return (FALSE); } /******************************************************************************* * * FUNCTION: AcpiUtAllocateObjectDescDbg * * PARAMETERS: ModuleName - Caller's module name (for error output) * LineNumber - Caller's line number (for error output) * ComponentId - Caller's component ID (for error output) * * RETURN: Pointer to newly allocated object descriptor. Null on error * * DESCRIPTION: Allocate a new object descriptor. Gracefully handle * error conditions. * ******************************************************************************/ void * AcpiUtAllocateObjectDescDbg ( const char *ModuleName, UINT32 LineNumber, UINT32 ComponentId) { ACPI_OPERAND_OBJECT *Object; ACPI_FUNCTION_TRACE (UtAllocateObjectDescDbg); Object = AcpiOsAcquireObject (AcpiGbl_OperandCache); if (!Object) { ACPI_ERROR ((ModuleName, LineNumber, "Could not allocate an object descriptor")); return_PTR (NULL); } /* Mark the descriptor type */ ACPI_SET_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_OPERAND); ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n", Object, (UINT32) sizeof (ACPI_OPERAND_OBJECT))); return_PTR (Object); } /******************************************************************************* * * FUNCTION: AcpiUtDeleteObjectDesc * * PARAMETERS: Object - An Acpi internal object to be deleted * * RETURN: None. * * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache * ******************************************************************************/ void AcpiUtDeleteObjectDesc ( ACPI_OPERAND_OBJECT *Object) { ACPI_FUNCTION_TRACE_PTR (UtDeleteObjectDesc, Object); /* Object must be of type ACPI_OPERAND_OBJECT */ if (ACPI_GET_DESCRIPTOR_TYPE (Object) != ACPI_DESC_TYPE_OPERAND) { ACPI_ERROR ((AE_INFO, "%p is not an ACPI Operand object [%s]", Object, AcpiUtGetDescriptorName (Object))); return_VOID; } (void) AcpiOsReleaseObject (AcpiGbl_OperandCache, Object); return_VOID; } /******************************************************************************* * * FUNCTION: AcpiUtGetSimpleObjectSize * * PARAMETERS: InternalObject - An ACPI operand object * ObjLength - Where the length is returned * * RETURN: Status * * DESCRIPTION: This function is called to determine the space required to * contain a simple object for return to an external user. * * The length includes the object structure plus any additional * needed space. * ******************************************************************************/ static ACPI_STATUS AcpiUtGetSimpleObjectSize ( ACPI_OPERAND_OBJECT *InternalObject, ACPI_SIZE *ObjLength) { ACPI_SIZE Length; ACPI_SIZE Size; ACPI_STATUS Status = AE_OK; ACPI_FUNCTION_TRACE_PTR (UtGetSimpleObjectSize, InternalObject); /* Start with the length of the (external) Acpi object */ Length = sizeof (ACPI_OBJECT); /* A NULL object is allowed, can be a legal uninitialized package element */ if (!InternalObject) { /* * Object is NULL, just return the length of ACPI_OBJECT * (A NULL ACPI_OBJECT is an object of all zeroes.) */ *ObjLength = ACPI_ROUND_UP_TO_NATIVE_WORD (Length); return_ACPI_STATUS (AE_OK); } /* A Namespace Node should never appear here */ if (ACPI_GET_DESCRIPTOR_TYPE (InternalObject) == ACPI_DESC_TYPE_NAMED) { /* A namespace node should never get here */ ACPI_ERROR ((AE_INFO, "Received a namespace node [%4.4s] " "where an operand object is required", ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, InternalObject)->Name.Ascii)); return_ACPI_STATUS (AE_AML_INTERNAL); } /* * The final length depends on the object type * Strings and Buffers are packed right up against the parent object and * must be accessed bytewise or there may be alignment problems on * certain processors */ switch (InternalObject->Common.Type) { case ACPI_TYPE_STRING: Length += (ACPI_SIZE) InternalObject->String.Length + 1; break; case ACPI_TYPE_BUFFER: Length += (ACPI_SIZE) InternalObject->Buffer.Length; break; case ACPI_TYPE_INTEGER: case ACPI_TYPE_PROCESSOR: case ACPI_TYPE_POWER: /* No extra data for these types */ break; case ACPI_TYPE_LOCAL_REFERENCE: switch (InternalObject->Reference.Class) { case ACPI_REFCLASS_NAME: /* * Get the actual length of the full pathname to this object. * The reference will be converted to the pathname to the object */ Size = AcpiNsGetPathnameLength (InternalObject->Reference.Node); if (!Size) { return_ACPI_STATUS (AE_BAD_PARAMETER); } Length += ACPI_ROUND_UP_TO_NATIVE_WORD (Size); break; default: /* * No other reference opcodes are supported. * Notably, Locals and Args are not supported, but this may be * required eventually. */ ACPI_ERROR ((AE_INFO, "Cannot convert to external object - " "unsupported Reference Class [%s] 0x%X in object %p", AcpiUtGetReferenceName (InternalObject), InternalObject->Reference.Class, InternalObject)); Status = AE_TYPE; break; } break; default: ACPI_ERROR ((AE_INFO, "Cannot convert to external object - " "unsupported type [%s] 0x%X in object %p", AcpiUtGetObjectTypeName (InternalObject), InternalObject->Common.Type, InternalObject)); Status = AE_TYPE; break; } /* * Account for the space required by the object rounded up to the next * multiple of the machine word size. This keeps each object aligned * on a machine word boundary. (preventing alignment faults on some * machines.) */ *ObjLength = ACPI_ROUND_UP_TO_NATIVE_WORD (Length); return_ACPI_STATUS (Status); } /******************************************************************************* * * FUNCTION: AcpiUtGetElementLength * * PARAMETERS: ACPI_PKG_CALLBACK * * RETURN: Status * * DESCRIPTION: Get the length of one package element. * ******************************************************************************/ static ACPI_STATUS AcpiUtGetElementLength ( UINT8 ObjectType, ACPI_OPERAND_OBJECT *SourceObject, ACPI_GENERIC_STATE *State, void *Context) { ACPI_STATUS Status = AE_OK; ACPI_PKG_INFO *Info = (ACPI_PKG_INFO *) Context; ACPI_SIZE ObjectSpace; switch (ObjectType) { case ACPI_COPY_TYPE_SIMPLE: /* * Simple object - just get the size (Null object/entry is handled * here also) and sum it into the running package length */ Status = AcpiUtGetSimpleObjectSize (SourceObject, &ObjectSpace); if (ACPI_FAILURE (Status)) { return (Status); } Info->Length += ObjectSpace; break; case ACPI_COPY_TYPE_PACKAGE: /* Package object - nothing much to do here, let the walk handle it */ Info->NumPackages++; State->Pkg.ThisTargetObj = NULL; break; default: /* No other types allowed */ return (AE_BAD_PARAMETER); } return (Status); } /******************************************************************************* * * FUNCTION: AcpiUtGetPackageObjectSize * * PARAMETERS: InternalObject - An ACPI internal object * ObjLength - Where the length is returned * * RETURN: Status * * DESCRIPTION: This function is called to determine the space required to * contain a package object for return to an external user. * * This is moderately complex since a package contains other * objects including packages. * ******************************************************************************/ static ACPI_STATUS AcpiUtGetPackageObjectSize ( ACPI_OPERAND_OBJECT *InternalObject, ACPI_SIZE *ObjLength) { ACPI_STATUS Status; ACPI_PKG_INFO Info; ACPI_FUNCTION_TRACE_PTR (UtGetPackageObjectSize, InternalObject); Info.Length = 0; Info.ObjectSpace = 0; Info.NumPackages = 1; Status = AcpiUtWalkPackageTree ( InternalObject, NULL, AcpiUtGetElementLength, &Info); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } /* * We have handled all of the objects in all levels of the package. * just add the length of the package objects themselves. * Round up to the next machine word. */ Info.Length += ACPI_ROUND_UP_TO_NATIVE_WORD ( sizeof (ACPI_OBJECT)) * (ACPI_SIZE) Info.NumPackages; /* Return the total package length */ *ObjLength = Info.Length; return_ACPI_STATUS (Status); } /******************************************************************************* * * FUNCTION: AcpiUtGetObjectSize * * PARAMETERS: InternalObject - An ACPI internal object * ObjLength - Where the length will be returned * * RETURN: Status * * DESCRIPTION: This function is called to determine the space required to * contain an object for return to an API user. * ******************************************************************************/ ACPI_STATUS AcpiUtGetObjectSize ( ACPI_OPERAND_OBJECT *InternalObject, ACPI_SIZE *ObjLength) { ACPI_STATUS Status; ACPI_FUNCTION_ENTRY (); if ((ACPI_GET_DESCRIPTOR_TYPE (InternalObject) == ACPI_DESC_TYPE_OPERAND) && (InternalObject->Common.Type == ACPI_TYPE_PACKAGE)) { Status = AcpiUtGetPackageObjectSize (InternalObject, ObjLength); } else { Status = AcpiUtGetSimpleObjectSize (InternalObject, ObjLength); } return (Status); }