823 lines
25 KiB
C
823 lines
25 KiB
C
/******************************************************************************
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*
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* Module Name: cmobject - ACPI object create/delete/size/cache routines
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* $Revision: 32 $
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999, Intel Corp. All rights
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* reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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|
* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#define __CMOBJECT_C__
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#include "acpi.h"
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#include "acinterp.h"
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#include "acnamesp.h"
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#include "actables.h"
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#include "amlcode.h"
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#define _COMPONENT MISCELLANEOUS
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MODULE_NAME ("cmobject")
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/******************************************************************************
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*
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* FUNCTION: _CmCreateInternalObject
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*
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* PARAMETERS: Address - Address of the memory to deallocate
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* Component - Component type of caller
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* Module - Source file name of caller
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* Line - Line number of caller
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* Type - ACPI Type of the new object
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*
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* RETURN: Object - The new object. Null on failure
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*
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* DESCRIPTION: Create and initialize a new internal object.
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*
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* NOTE:
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* We always allocate the worst-case object descriptor because these
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* objects are cached, and we want them to be one-size-satisifies-any-request.
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* This in itself may not be the most memory efficient, but the efficiency
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* of the object cache should more than make up for this!
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*
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******************************************************************************/
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ACPI_OPERAND_OBJECT *
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_CmCreateInternalObject (
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NATIVE_CHAR *ModuleName,
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UINT32 LineNumber,
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UINT32 ComponentId,
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OBJECT_TYPE_INTERNAL Type)
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{
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ACPI_OPERAND_OBJECT *Object;
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FUNCTION_TRACE_STR ("CmCreateInternalObject", AcpiCmGetTypeName (Type));
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/* Allocate the raw object descriptor */
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Object = _CmAllocateObjectDesc (ModuleName, LineNumber, ComponentId);
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if (!Object)
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{
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/* Allocation failure */
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return_VALUE (NULL);
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}
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/* Save the object type in the object descriptor */
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Object->Common.Type = Type;
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/* Init the reference count */
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Object->Common.ReferenceCount = 1;
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/* Any per-type initialization should go here */
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return_PTR (Object);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiCmValidInternalObject
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*
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* PARAMETERS: Operand - Object to be validated
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*
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* RETURN: Validate a pointer to be an ACPI_OPERAND_OBJECT
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*
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*****************************************************************************/
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BOOLEAN
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AcpiCmValidInternalObject (
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void *Object)
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{
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/* Check for a null pointer */
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if (!Object)
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{
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DEBUG_PRINT (ACPI_INFO,
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("CmValidInternalObject: **** Null Object Ptr\n"));
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return (FALSE);
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}
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/* Check for a pointer within one of the ACPI tables */
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if (AcpiTbSystemTablePointer (Object))
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{
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DEBUG_PRINT (ACPI_INFO,
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("CmValidInternalObject: **** Object %p is a Pcode Ptr\n", Object));
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return (FALSE);
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}
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/* Check the descriptor type field */
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if (!VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_INTERNAL))
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{
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/* Not an ACPI internal object, do some further checking */
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if (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_NAMED))
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{
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DEBUG_PRINT (ACPI_INFO,
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("CmValidInternalObject: **** Obj %p is a named obj, not ACPI obj\n",
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Object));
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}
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else if (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_PARSER))
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{
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DEBUG_PRINT (ACPI_INFO,
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("CmValidInternalObject: **** Obj %p is a parser obj, not ACPI obj\n",
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Object));
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}
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else
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{
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DEBUG_PRINT (ACPI_INFO,
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("CmValidInternalObject: **** Obj %p is of unknown type\n",
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Object));
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}
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return (FALSE);
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}
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/* The object appears to be a valid ACPI_OPERAND_OBJECT */
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return (TRUE);
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}
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/*****************************************************************************
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*
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* FUNCTION: _CmAllocateObjectDesc
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*
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* PARAMETERS: ModuleName - Caller's module name (for error output)
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* LineNumber - Caller's line number (for error output)
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* ComponentId - Caller's component ID (for error output)
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* Message - Error message to use on failure
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*
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* RETURN: Pointer to newly allocated object descriptor. Null on error
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*
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* DESCRIPTION: Allocate a new object descriptor. Gracefully handle
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* error conditions.
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*
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****************************************************************************/
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void *
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_CmAllocateObjectDesc (
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NATIVE_CHAR *ModuleName,
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UINT32 LineNumber,
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UINT32 ComponentId)
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{
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ACPI_OPERAND_OBJECT *Object;
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FUNCTION_TRACE ("_AllocateObjectDesc");
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AcpiCmAcquireMutex (ACPI_MTX_CACHES);
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AcpiGbl_ObjectCacheRequests++;
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/* Check the cache first */
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if (AcpiGbl_ObjectCache)
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{
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/* There is an object available, use it */
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Object = AcpiGbl_ObjectCache;
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AcpiGbl_ObjectCache = Object->Cache.Next;
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Object->Cache.Next = NULL;
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AcpiGbl_ObjectCacheHits++;
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AcpiGbl_ObjectCacheDepth--;
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AcpiCmReleaseMutex (ACPI_MTX_CACHES);
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}
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else
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{
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/* The cache is empty, create a new object */
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AcpiCmReleaseMutex (ACPI_MTX_CACHES);
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/* Attempt to allocate new descriptor */
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Object = _CmCallocate (sizeof (ACPI_OPERAND_OBJECT), ComponentId,
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ModuleName, LineNumber);
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if (!Object)
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{
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/* Allocation failed */
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_REPORT_ERROR (ModuleName, LineNumber, ComponentId,
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("Could not allocate an object descriptor\n"));
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return_PTR (NULL);
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}
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/* Memory allocation metrics - compiled out in non debug mode. */
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INCREMENT_OBJECT_METRICS (sizeof (ACPI_OPERAND_OBJECT));
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}
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/* Mark the descriptor type */
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Object->Common.DataType = ACPI_DESC_TYPE_INTERNAL;
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DEBUG_PRINT (TRACE_ALLOCATIONS, ("AllocateObjectDesc: %p Size %X\n",
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Object, sizeof (ACPI_OPERAND_OBJECT)));
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return_PTR (Object);
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}
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|
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/*****************************************************************************
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*
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* FUNCTION: AcpiCmDeleteObjectDesc
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*
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* PARAMETERS: Object - Acpi internal object to be deleted
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*
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* RETURN: None.
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*
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* DESCRIPTION: Free an ACPI object descriptor or add it to the object cache
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*
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****************************************************************************/
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void
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AcpiCmDeleteObjectDesc (
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ACPI_OPERAND_OBJECT *Object)
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{
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FUNCTION_TRACE_PTR ("AcpiCmDeleteObjectDesc", Object);
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/* Make sure that the object isn't already in the cache */
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if (Object->Common.DataType == (ACPI_DESC_TYPE_INTERNAL | ACPI_CACHED_OBJECT))
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{
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DEBUG_PRINT (ACPI_ERROR,
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("CmDeleteObjectDesc: Obj %p is already in the object cache\n",
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Object));
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return_VOID;
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}
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/* Object must be an ACPI_OPERAND_OBJECT */
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if (Object->Common.DataType != ACPI_DESC_TYPE_INTERNAL)
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{
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DEBUG_PRINT (ACPI_ERROR,
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("CmDeleteObjectDesc: Obj %p is not an ACPI object\n", Object));
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return_VOID;
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}
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/* If cache is full, just free this object */
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if (AcpiGbl_ObjectCacheDepth >= MAX_OBJECT_CACHE_DEPTH)
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{
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/*
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* Memory allocation metrics. Call the macro here since we only
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* care about dynamically allocated objects.
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*/
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DECREMENT_OBJECT_METRICS (sizeof (ACPI_OPERAND_OBJECT));
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AcpiCmFree (Object);
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return_VOID;
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}
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AcpiCmAcquireMutex (ACPI_MTX_CACHES);
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/* Clear the entire object. This is important! */
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MEMSET (Object, 0, sizeof (ACPI_OPERAND_OBJECT));
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Object->Common.DataType = ACPI_DESC_TYPE_INTERNAL | ACPI_CACHED_OBJECT;
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/* Put the object at the head of the global cache list */
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Object->Cache.Next = AcpiGbl_ObjectCache;
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AcpiGbl_ObjectCache = Object;
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AcpiGbl_ObjectCacheDepth++;
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|
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AcpiCmReleaseMutex (ACPI_MTX_CACHES);
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return_VOID;
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}
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|
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/******************************************************************************
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*
|
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* FUNCTION: AcpiCmDeleteObjectCache
|
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*
|
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* PARAMETERS: None
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*
|
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* RETURN: Status
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*
|
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* DESCRIPTION: Purge the global state object cache. Used during subsystem
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* termination.
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*
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******************************************************************************/
|
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void
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AcpiCmDeleteObjectCache (
|
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void)
|
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{
|
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ACPI_OPERAND_OBJECT *Next;
|
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|
|
|
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FUNCTION_TRACE ("CmDeleteObjectCache");
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|
|
|
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/* Traverse the global cache list */
|
|
|
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while (AcpiGbl_ObjectCache)
|
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{
|
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/* Delete one cached state object */
|
|
|
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Next = AcpiGbl_ObjectCache->Cache.Next;
|
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AcpiGbl_ObjectCache->Cache.Next = NULL;
|
|
|
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/*
|
|
* Memory allocation metrics. Call the macro here since we only
|
|
* care about dynamically allocated objects.
|
|
*/
|
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DECREMENT_OBJECT_METRICS (sizeof (ACPI_OPERAND_OBJECT));
|
|
|
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AcpiCmFree (AcpiGbl_ObjectCache);
|
|
AcpiGbl_ObjectCache = Next;
|
|
AcpiGbl_ObjectCacheDepth--;
|
|
}
|
|
|
|
return_VOID;
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* FUNCTION: AcpiCmInitStaticObject
|
|
*
|
|
* PARAMETERS: ObjDesc - Pointer to a "static" object - on stack
|
|
* or in the data segment.
|
|
*
|
|
* RETURN: None.
|
|
*
|
|
* DESCRIPTION: Initialize a static object. Sets flags to disallow dynamic
|
|
* deletion of the object.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void
|
|
AcpiCmInitStaticObject (
|
|
ACPI_OPERAND_OBJECT *ObjDesc)
|
|
{
|
|
|
|
FUNCTION_TRACE_PTR ("CmInitStaticObject", ObjDesc);
|
|
|
|
|
|
if (!ObjDesc)
|
|
{
|
|
return_VOID;
|
|
}
|
|
|
|
|
|
/*
|
|
* Clear the entire descriptor
|
|
*/
|
|
MEMSET ((void *) ObjDesc, 0, sizeof (ACPI_OPERAND_OBJECT));
|
|
|
|
|
|
/*
|
|
* Initialize the header fields
|
|
* 1) This is an ACPI_OPERAND_OBJECT descriptor
|
|
* 2) The size is the full object (worst case)
|
|
* 3) The flags field indicates static allocation
|
|
* 4) Reference count starts at one (not really necessary since the
|
|
* object can't be deleted, but keeps everything sane)
|
|
*/
|
|
|
|
ObjDesc->Common.DataType = ACPI_DESC_TYPE_INTERNAL;
|
|
ObjDesc->Common.Flags = AOPOBJ_STATIC_ALLOCATION;
|
|
ObjDesc->Common.ReferenceCount = 1;
|
|
|
|
return_VOID;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiCmGetSimpleObjectSize
|
|
*
|
|
* PARAMETERS: *InternalObj - Pointer to the object we are examining
|
|
* *RetLength - Where the length is returned
|
|
*
|
|
* RETURN: Status - the status of the call
|
|
*
|
|
* DESCRIPTION: This function is called to determine the space required to
|
|
* contain a simple object for return to an API user.
|
|
*
|
|
* The length includes the object structure plus any additional
|
|
* needed space.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiCmGetSimpleObjectSize (
|
|
ACPI_OPERAND_OBJECT *InternalObj,
|
|
UINT32 *ObjLength)
|
|
{
|
|
UINT32 Length;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("CmGetSimpleObjectSize", InternalObj);
|
|
|
|
|
|
/* Handle a null object (Could be a uninitialized package element -- which is legal) */
|
|
|
|
if (!InternalObj)
|
|
{
|
|
*ObjLength = 0;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/* Start with the length of the Acpi object */
|
|
|
|
Length = sizeof (ACPI_OBJECT);
|
|
|
|
if (VALID_DESCRIPTOR_TYPE (InternalObj, ACPI_DESC_TYPE_NAMED))
|
|
{
|
|
/* Object is a named object (reference), just return the length */
|
|
|
|
*ObjLength = (UINT32) ROUND_UP_TO_NATIVE_WORD (Length);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*
|
|
* 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.
|
|
*
|
|
* TBD:[Investigate] do strings and buffers require alignment also?
|
|
*/
|
|
|
|
switch (InternalObj->Common.Type)
|
|
{
|
|
|
|
case ACPI_TYPE_STRING:
|
|
|
|
Length += InternalObj->String.Length;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
|
|
Length += InternalObj->Buffer.Length;
|
|
break;
|
|
|
|
|
|
case ACPI_TYPE_NUMBER:
|
|
case ACPI_TYPE_PROCESSOR:
|
|
case ACPI_TYPE_POWER:
|
|
|
|
/*
|
|
* No extra data for these types
|
|
*/
|
|
break;
|
|
|
|
|
|
case INTERNAL_TYPE_REFERENCE:
|
|
|
|
/*
|
|
* The only type that should be here is opcode AML_NAMEPATH_OP -- since
|
|
* this means an object reference
|
|
*/
|
|
if (InternalObj->Reference.OpCode != AML_NAMEPATH_OP)
|
|
{
|
|
DEBUG_PRINT (ACPI_ERROR,
|
|
("CmGetSimpleObjectSize: Unsupported Reference opcode=%X in object %p\n",
|
|
InternalObj->Reference.OpCode, InternalObj));
|
|
Status = AE_TYPE;
|
|
}
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
DEBUG_PRINT (ACPI_ERROR,
|
|
("CmGetSimpleObjectSize: Unsupported type=%X in object %p\n",
|
|
InternalObj->Common.Type, InternalObj));
|
|
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 = (UINT32) ROUND_UP_TO_NATIVE_WORD (Length);
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiCmGetPackageObjectSize
|
|
*
|
|
* PARAMETERS: *InternalObj - Pointer to the object we are examining
|
|
* *RetLength - Where the length is returned
|
|
*
|
|
* RETURN: Status - the status of the call
|
|
*
|
|
* DESCRIPTION: This function is called to determine the space required to contain
|
|
* a package object for return to an API user.
|
|
*
|
|
* This is moderately complex since a package contains other objects
|
|
* including packages.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiCmGetPackageObjectSize (
|
|
ACPI_OPERAND_OBJECT *InternalObj,
|
|
UINT32 *ObjLength)
|
|
{
|
|
|
|
ACPI_OPERAND_OBJECT *ThisInternalObj;
|
|
ACPI_OPERAND_OBJECT *ParentObj[MAX_PACKAGE_DEPTH];
|
|
ACPI_OPERAND_OBJECT *ThisParent;
|
|
UINT32 ThisIndex;
|
|
UINT32 Index[MAX_PACKAGE_DEPTH];
|
|
UINT32 Length = 0;
|
|
UINT32 ObjectSpace;
|
|
UINT32 CurrentDepth = 0;
|
|
UINT32 PackageCount = 1;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("CmGetPackageObjectSize", InternalObj);
|
|
|
|
|
|
/* Init the package stack TBD: replace with linked list */
|
|
|
|
MEMSET(ParentObj, 0, MAX_PACKAGE_DEPTH);
|
|
MEMSET(Index, 0, MAX_PACKAGE_DEPTH);
|
|
|
|
ParentObj[0] = InternalObj;
|
|
|
|
while (1)
|
|
{
|
|
ThisParent = ParentObj[CurrentDepth];
|
|
ThisIndex = Index[CurrentDepth];
|
|
ThisInternalObj = ThisParent->Package.Elements[ThisIndex];
|
|
|
|
|
|
/*
|
|
* Check for 1) An uninitialized package element. It is completely
|
|
* legal to declare a package and leave it uninitialized
|
|
* 2) Any type other than a package. Packages are handled
|
|
* below.
|
|
*/
|
|
|
|
if ((!ThisInternalObj) ||
|
|
(!IS_THIS_OBJECT_TYPE (ThisInternalObj, ACPI_TYPE_PACKAGE)))
|
|
{
|
|
/*
|
|
* Simple object - just get the size (Null object/entry handled
|
|
* also)
|
|
*/
|
|
|
|
Status =
|
|
AcpiCmGetSimpleObjectSize (ThisInternalObj, &ObjectSpace);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
Length += ObjectSpace;
|
|
|
|
Index[CurrentDepth]++;
|
|
while (Index[CurrentDepth] >=
|
|
ParentObj[CurrentDepth]->Package.Count)
|
|
{
|
|
/*
|
|
* We've handled all of the objects at
|
|
* this level, This means that we have
|
|
* just completed a package. That package
|
|
* may have contained one or more packages
|
|
* itself.
|
|
*/
|
|
if (CurrentDepth == 0)
|
|
{
|
|
/*
|
|
* We have handled all of the objects
|
|
* in the top level package just add the
|
|
* length of the package objects and
|
|
* get out. Round up to the next machine
|
|
* word.
|
|
*/
|
|
Length +=
|
|
ROUND_UP_TO_NATIVE_WORD (
|
|
sizeof (ACPI_OBJECT)) *
|
|
PackageCount;
|
|
|
|
*ObjLength = Length;
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* Go back up a level and move the index
|
|
* past the just completed package object.
|
|
*/
|
|
CurrentDepth--;
|
|
Index[CurrentDepth]++;
|
|
}
|
|
}
|
|
|
|
else
|
|
{
|
|
/*
|
|
* This object is a package
|
|
* -- go one level deeper
|
|
*/
|
|
PackageCount++;
|
|
if (CurrentDepth < MAX_PACKAGE_DEPTH-1)
|
|
{
|
|
CurrentDepth++;
|
|
ParentObj[CurrentDepth] = ThisInternalObj;
|
|
Index[CurrentDepth] = 0;
|
|
}
|
|
|
|
else
|
|
{
|
|
/*
|
|
* Too many nested levels of packages for us
|
|
* to handle
|
|
*/
|
|
|
|
DEBUG_PRINT (ACPI_ERROR,
|
|
("CmGetPackageObjectSize: Pkg nested too deep (max %X)\n",
|
|
MAX_PACKAGE_DEPTH));
|
|
return_ACPI_STATUS (AE_LIMIT);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiCmGetObjectSize
|
|
*
|
|
* PARAMETERS: *InternalObj - Pointer to the object we are examining
|
|
* *RetLength - Where the length will be returned
|
|
*
|
|
* RETURN: Status - the status of the call
|
|
*
|
|
* DESCRIPTION: This function is called to determine the space required to
|
|
* contain an object for return to an API user.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiCmGetObjectSize(
|
|
ACPI_OPERAND_OBJECT *InternalObj,
|
|
UINT32 *ObjLength)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
if ((VALID_DESCRIPTOR_TYPE (InternalObj, ACPI_DESC_TYPE_INTERNAL)) &&
|
|
(IS_THIS_OBJECT_TYPE (InternalObj, ACPI_TYPE_PACKAGE)))
|
|
{
|
|
Status =
|
|
AcpiCmGetPackageObjectSize (InternalObj, ObjLength);
|
|
}
|
|
|
|
else
|
|
{
|
|
Status =
|
|
AcpiCmGetSimpleObjectSize (InternalObj, ObjLength);
|
|
}
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|