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/******************************************************************************

 *

 * Module Name: utobject - ACPI object create/delete/size/cache routines

 *

 *****************************************************************************/

/******************************************************************************

 *

 * 1. Copyright Notice

 *

 * Some or all of this work - Copyright (c) 1999 - 2011, 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.

 *

 *****************************************************************************/

#define __UTOBJECT_C__

#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-satisifies-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 an 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 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 an 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 */

        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);

}