746 lines
24 KiB
C
746 lines
24 KiB
C
/*******************************************************************************
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*
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* Module Name: rscalc - Calculate stream and list lengths
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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 - 2011, Intel Corp.
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* All rights 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
|
|
* Code or modification without rights to further distribute source must
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|
* include the following Disclaimer and Export Compliance provision in the
|
|
* 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 __RSCALC_C__
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#include "acpi.h"
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#include "accommon.h"
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#include "acresrc.h"
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#include "acnamesp.h"
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME ("rscalc")
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/* Local prototypes */
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static UINT8
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AcpiRsCountSetBits (
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UINT16 BitField);
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static ACPI_RS_LENGTH
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AcpiRsStructOptionLength (
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ACPI_RESOURCE_SOURCE *ResourceSource);
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static UINT32
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AcpiRsStreamOptionLength (
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UINT32 ResourceLength,
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UINT32 MinimumTotalLength);
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsCountSetBits
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*
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* PARAMETERS: BitField - Field in which to count bits
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*
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* RETURN: Number of bits set within the field
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*
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* DESCRIPTION: Count the number of bits set in a resource field. Used for
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* (Short descriptor) interrupt and DMA lists.
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*
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******************************************************************************/
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static UINT8
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AcpiRsCountSetBits (
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UINT16 BitField)
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{
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UINT8 BitsSet;
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ACPI_FUNCTION_ENTRY ();
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for (BitsSet = 0; BitField; BitsSet++)
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{
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/* Zero the least significant bit that is set */
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BitField &= (UINT16) (BitField - 1);
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}
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return (BitsSet);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsStructOptionLength
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*
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* PARAMETERS: ResourceSource - Pointer to optional descriptor field
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*
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* RETURN: Status
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*
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* DESCRIPTION: Common code to handle optional ResourceSourceIndex and
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* ResourceSource fields in some Large descriptors. Used during
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* list-to-stream conversion
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*
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******************************************************************************/
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static ACPI_RS_LENGTH
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AcpiRsStructOptionLength (
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ACPI_RESOURCE_SOURCE *ResourceSource)
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{
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ACPI_FUNCTION_ENTRY ();
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/*
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* If the ResourceSource string is valid, return the size of the string
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* (StringLength includes the NULL terminator) plus the size of the
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* ResourceSourceIndex (1).
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*/
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if (ResourceSource->StringPtr)
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{
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return ((ACPI_RS_LENGTH) (ResourceSource->StringLength + 1));
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}
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return (0);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsStreamOptionLength
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*
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* PARAMETERS: ResourceLength - Length from the resource header
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* MinimumTotalLength - Minimum length of this resource, before
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* any optional fields. Includes header size
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*
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* RETURN: Length of optional string (0 if no string present)
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*
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* DESCRIPTION: Common code to handle optional ResourceSourceIndex and
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* ResourceSource fields in some Large descriptors. Used during
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* stream-to-list conversion
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*
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******************************************************************************/
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static UINT32
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AcpiRsStreamOptionLength (
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UINT32 ResourceLength,
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UINT32 MinimumAmlResourceLength)
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{
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UINT32 StringLength = 0;
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ACPI_FUNCTION_ENTRY ();
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/*
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* The ResourceSourceIndex and ResourceSource are optional elements of some
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* Large-type resource descriptors.
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*/
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/*
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* If the length of the actual resource descriptor is greater than the ACPI
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* spec-defined minimum length, it means that a ResourceSourceIndex exists
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* and is followed by a (required) null terminated string. The string length
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* (including the null terminator) is the resource length minus the minimum
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* length, minus one byte for the ResourceSourceIndex itself.
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*/
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if (ResourceLength > MinimumAmlResourceLength)
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{
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/* Compute the length of the optional string */
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StringLength = ResourceLength - MinimumAmlResourceLength - 1;
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}
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/*
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* Round the length up to a multiple of the native word in order to
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* guarantee that the entire resource descriptor is native word aligned
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*/
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return ((UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (StringLength));
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiRsGetAmlLength
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*
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* PARAMETERS: Resource - Pointer to the resource linked list
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* SizeNeeded - Where the required size is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Takes a linked list of internal resource descriptors and
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* calculates the size buffer needed to hold the corresponding
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* external resource byte stream.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiRsGetAmlLength (
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ACPI_RESOURCE *Resource,
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ACPI_SIZE *SizeNeeded)
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{
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ACPI_SIZE AmlSizeNeeded = 0;
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ACPI_RS_LENGTH TotalSize;
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ACPI_FUNCTION_TRACE (RsGetAmlLength);
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/* Traverse entire list of internal resource descriptors */
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while (Resource)
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{
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/* Validate the descriptor type */
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if (Resource->Type > ACPI_RESOURCE_TYPE_MAX)
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{
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return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE);
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}
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/* Get the base size of the (external stream) resource descriptor */
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TotalSize = AcpiGbl_AmlResourceSizes [Resource->Type];
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/*
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* Augment the base size for descriptors with optional and/or
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* variable-length fields
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*/
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switch (Resource->Type)
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{
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case ACPI_RESOURCE_TYPE_IRQ:
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/* Length can be 3 or 2 */
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if (Resource->Data.Irq.DescriptorLength == 2)
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{
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TotalSize--;
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}
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break;
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|
|
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case ACPI_RESOURCE_TYPE_START_DEPENDENT:
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/* Length can be 1 or 0 */
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if (Resource->Data.Irq.DescriptorLength == 0)
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{
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TotalSize--;
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}
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break;
|
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|
|
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case ACPI_RESOURCE_TYPE_VENDOR:
|
|
/*
|
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* Vendor Defined Resource:
|
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* For a Vendor Specific resource, if the Length is between 1 and 7
|
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* it will be created as a Small Resource data type, otherwise it
|
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* is a Large Resource data type.
|
|
*/
|
|
if (Resource->Data.Vendor.ByteLength > 7)
|
|
{
|
|
/* Base size of a Large resource descriptor */
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TotalSize = sizeof (AML_RESOURCE_LARGE_HEADER);
|
|
}
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|
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/* Add the size of the vendor-specific data */
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TotalSize = (ACPI_RS_LENGTH)
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(TotalSize + Resource->Data.Vendor.ByteLength);
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break;
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case ACPI_RESOURCE_TYPE_END_TAG:
|
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/*
|
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* End Tag:
|
|
* We are done -- return the accumulated total size.
|
|
*/
|
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*SizeNeeded = AmlSizeNeeded + TotalSize;
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|
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/* Normal exit */
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return_ACPI_STATUS (AE_OK);
|
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|
|
|
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case ACPI_RESOURCE_TYPE_ADDRESS16:
|
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/*
|
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* 16-Bit Address Resource:
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* Add the size of the optional ResourceSource info
|
|
*/
|
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TotalSize = (ACPI_RS_LENGTH)
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(TotalSize + AcpiRsStructOptionLength (
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&Resource->Data.Address16.ResourceSource));
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break;
|
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|
|
|
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case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
/*
|
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* 32-Bit Address Resource:
|
|
* Add the size of the optional ResourceSource info
|
|
*/
|
|
TotalSize = (ACPI_RS_LENGTH)
|
|
(TotalSize + AcpiRsStructOptionLength (
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&Resource->Data.Address32.ResourceSource));
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break;
|
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|
|
|
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case ACPI_RESOURCE_TYPE_ADDRESS64:
|
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/*
|
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* 64-Bit Address Resource:
|
|
* Add the size of the optional ResourceSource info
|
|
*/
|
|
TotalSize = (ACPI_RS_LENGTH)
|
|
(TotalSize + AcpiRsStructOptionLength (
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&Resource->Data.Address64.ResourceSource));
|
|
break;
|
|
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
/*
|
|
* Extended IRQ Resource:
|
|
* Add the size of each additional optional interrupt beyond the
|
|
* required 1 (4 bytes for each UINT32 interrupt number)
|
|
*/
|
|
TotalSize = (ACPI_RS_LENGTH)
|
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(TotalSize +
|
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((Resource->Data.ExtendedIrq.InterruptCount - 1) * 4) +
|
|
|
|
/* Add the size of the optional ResourceSource info */
|
|
|
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AcpiRsStructOptionLength (
|
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&Resource->Data.ExtendedIrq.ResourceSource));
|
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break;
|
|
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Update the total */
|
|
|
|
AmlSizeNeeded += TotalSize;
|
|
|
|
/* Point to the next object */
|
|
|
|
Resource = ACPI_ADD_PTR (ACPI_RESOURCE, Resource, Resource->Length);
|
|
}
|
|
|
|
/* Did not find an EndTag resource descriptor */
|
|
|
|
return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetListLength
|
|
*
|
|
* PARAMETERS: AmlBuffer - Pointer to the resource byte stream
|
|
* AmlBufferLength - Size of AmlBuffer
|
|
* SizeNeeded - Where the size needed is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Takes an external resource byte stream and calculates the size
|
|
* buffer needed to hold the corresponding internal resource
|
|
* descriptor linked list.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetListLength (
|
|
UINT8 *AmlBuffer,
|
|
UINT32 AmlBufferLength,
|
|
ACPI_SIZE *SizeNeeded)
|
|
{
|
|
ACPI_STATUS Status;
|
|
UINT8 *EndAml;
|
|
UINT8 *Buffer;
|
|
UINT32 BufferSize;
|
|
UINT16 Temp16;
|
|
UINT16 ResourceLength;
|
|
UINT32 ExtraStructBytes;
|
|
UINT8 ResourceIndex;
|
|
UINT8 MinimumAmlResourceLength;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetListLength);
|
|
|
|
|
|
*SizeNeeded = 0;
|
|
EndAml = AmlBuffer + AmlBufferLength;
|
|
|
|
/* Walk the list of AML resource descriptors */
|
|
|
|
while (AmlBuffer < EndAml)
|
|
{
|
|
/* Validate the Resource Type and Resource Length */
|
|
|
|
Status = AcpiUtValidateResource (AmlBuffer, &ResourceIndex);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Get the resource length and base (minimum) AML size */
|
|
|
|
ResourceLength = AcpiUtGetResourceLength (AmlBuffer);
|
|
MinimumAmlResourceLength = AcpiGbl_ResourceAmlSizes[ResourceIndex];
|
|
|
|
/*
|
|
* Augment the size for descriptors with optional
|
|
* and/or variable length fields
|
|
*/
|
|
ExtraStructBytes = 0;
|
|
Buffer = AmlBuffer + AcpiUtGetResourceHeaderLength (AmlBuffer);
|
|
|
|
switch (AcpiUtGetResourceType (AmlBuffer))
|
|
{
|
|
case ACPI_RESOURCE_NAME_IRQ:
|
|
/*
|
|
* IRQ Resource:
|
|
* Get the number of bits set in the 16-bit IRQ mask
|
|
*/
|
|
ACPI_MOVE_16_TO_16 (&Temp16, Buffer);
|
|
ExtraStructBytes = AcpiRsCountSetBits (Temp16);
|
|
break;
|
|
|
|
|
|
case ACPI_RESOURCE_NAME_DMA:
|
|
/*
|
|
* DMA Resource:
|
|
* Get the number of bits set in the 8-bit DMA mask
|
|
*/
|
|
ExtraStructBytes = AcpiRsCountSetBits (*Buffer);
|
|
break;
|
|
|
|
|
|
case ACPI_RESOURCE_NAME_VENDOR_SMALL:
|
|
case ACPI_RESOURCE_NAME_VENDOR_LARGE:
|
|
/*
|
|
* Vendor Resource:
|
|
* Get the number of vendor data bytes
|
|
*/
|
|
ExtraStructBytes = ResourceLength;
|
|
break;
|
|
|
|
|
|
case ACPI_RESOURCE_NAME_END_TAG:
|
|
/*
|
|
* End Tag:
|
|
* This is the normal exit, add size of EndTag
|
|
*/
|
|
*SizeNeeded += ACPI_RS_SIZE_MIN;
|
|
return_ACPI_STATUS (AE_OK);
|
|
|
|
|
|
case ACPI_RESOURCE_NAME_ADDRESS32:
|
|
case ACPI_RESOURCE_NAME_ADDRESS16:
|
|
case ACPI_RESOURCE_NAME_ADDRESS64:
|
|
/*
|
|
* Address Resource:
|
|
* Add the size of the optional ResourceSource
|
|
*/
|
|
ExtraStructBytes = AcpiRsStreamOptionLength (
|
|
ResourceLength, MinimumAmlResourceLength);
|
|
break;
|
|
|
|
|
|
case ACPI_RESOURCE_NAME_EXTENDED_IRQ:
|
|
/*
|
|
* Extended IRQ Resource:
|
|
* Using the InterruptTableLength, add 4 bytes for each additional
|
|
* interrupt. Note: at least one interrupt is required and is
|
|
* included in the minimum descriptor size (reason for the -1)
|
|
*/
|
|
ExtraStructBytes = (Buffer[1] - 1) * sizeof (UINT32);
|
|
|
|
/* Add the size of the optional ResourceSource */
|
|
|
|
ExtraStructBytes += AcpiRsStreamOptionLength (
|
|
ResourceLength - ExtraStructBytes, MinimumAmlResourceLength);
|
|
break;
|
|
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Update the required buffer size for the internal descriptor structs
|
|
*
|
|
* Important: Round the size up for the appropriate alignment. This
|
|
* is a requirement on IA64.
|
|
*/
|
|
BufferSize = AcpiGbl_ResourceStructSizes[ResourceIndex] +
|
|
ExtraStructBytes;
|
|
BufferSize = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (BufferSize);
|
|
|
|
*SizeNeeded += BufferSize;
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_RESOURCES,
|
|
"Type %.2X, AmlLength %.2X InternalLength %.2X\n",
|
|
AcpiUtGetResourceType (AmlBuffer),
|
|
AcpiUtGetDescriptorLength (AmlBuffer), BufferSize));
|
|
|
|
/*
|
|
* Point to the next resource within the AML stream using the length
|
|
* contained in the resource descriptor header
|
|
*/
|
|
AmlBuffer += AcpiUtGetDescriptorLength (AmlBuffer);
|
|
}
|
|
|
|
/* Did not find an EndTag resource descriptor */
|
|
|
|
return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiRsGetPciRoutingTableLength
|
|
*
|
|
* PARAMETERS: PackageObject - Pointer to the package object
|
|
* BufferSizeNeeded - UINT32 pointer of the size buffer
|
|
* needed to properly return the
|
|
* parsed data
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Given a package representing a PCI routing table, this
|
|
* calculates the size of the corresponding linked list of
|
|
* descriptions.
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiRsGetPciRoutingTableLength (
|
|
ACPI_OPERAND_OBJECT *PackageObject,
|
|
ACPI_SIZE *BufferSizeNeeded)
|
|
{
|
|
UINT32 NumberOfElements;
|
|
ACPI_SIZE TempSizeNeeded = 0;
|
|
ACPI_OPERAND_OBJECT **TopObjectList;
|
|
UINT32 Index;
|
|
ACPI_OPERAND_OBJECT *PackageElement;
|
|
ACPI_OPERAND_OBJECT **SubObjectList;
|
|
BOOLEAN NameFound;
|
|
UINT32 TableIndex;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (RsGetPciRoutingTableLength);
|
|
|
|
|
|
NumberOfElements = PackageObject->Package.Count;
|
|
|
|
/*
|
|
* Calculate the size of the return buffer.
|
|
* The base size is the number of elements * the sizes of the
|
|
* structures. Additional space for the strings is added below.
|
|
* The minus one is to subtract the size of the UINT8 Source[1]
|
|
* member because it is added below.
|
|
*
|
|
* But each PRT_ENTRY structure has a pointer to a string and
|
|
* the size of that string must be found.
|
|
*/
|
|
TopObjectList = PackageObject->Package.Elements;
|
|
|
|
for (Index = 0; Index < NumberOfElements; Index++)
|
|
{
|
|
/* Dereference the sub-package */
|
|
|
|
PackageElement = *TopObjectList;
|
|
|
|
/* We must have a valid Package object */
|
|
|
|
if (!PackageElement ||
|
|
(PackageElement->Common.Type != ACPI_TYPE_PACKAGE))
|
|
{
|
|
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
|
|
}
|
|
|
|
/*
|
|
* The SubObjectList will now point to an array of the
|
|
* four IRQ elements: Address, Pin, Source and SourceIndex
|
|
*/
|
|
SubObjectList = PackageElement->Package.Elements;
|
|
|
|
/* Scan the IrqTableElements for the Source Name String */
|
|
|
|
NameFound = FALSE;
|
|
|
|
for (TableIndex = 0; TableIndex < 4 && !NameFound; TableIndex++)
|
|
{
|
|
if (*SubObjectList && /* Null object allowed */
|
|
|
|
((ACPI_TYPE_STRING ==
|
|
(*SubObjectList)->Common.Type) ||
|
|
|
|
((ACPI_TYPE_LOCAL_REFERENCE ==
|
|
(*SubObjectList)->Common.Type) &&
|
|
|
|
((*SubObjectList)->Reference.Class ==
|
|
ACPI_REFCLASS_NAME))))
|
|
{
|
|
NameFound = TRUE;
|
|
}
|
|
else
|
|
{
|
|
/* Look at the next element */
|
|
|
|
SubObjectList++;
|
|
}
|
|
}
|
|
|
|
TempSizeNeeded += (sizeof (ACPI_PCI_ROUTING_TABLE) - 4);
|
|
|
|
/* Was a String type found? */
|
|
|
|
if (NameFound)
|
|
{
|
|
if ((*SubObjectList)->Common.Type == ACPI_TYPE_STRING)
|
|
{
|
|
/*
|
|
* The length String.Length field does not include the
|
|
* terminating NULL, add 1
|
|
*/
|
|
TempSizeNeeded += ((ACPI_SIZE)
|
|
(*SubObjectList)->String.Length + 1);
|
|
}
|
|
else
|
|
{
|
|
TempSizeNeeded += AcpiNsGetPathnameLength (
|
|
(*SubObjectList)->Reference.Node);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* If no name was found, then this is a NULL, which is
|
|
* translated as a UINT32 zero.
|
|
*/
|
|
TempSizeNeeded += sizeof (UINT32);
|
|
}
|
|
|
|
/* Round up the size since each element must be aligned */
|
|
|
|
TempSizeNeeded = ACPI_ROUND_UP_TO_64BIT (TempSizeNeeded);
|
|
|
|
/* Point to the next ACPI_OPERAND_OBJECT */
|
|
|
|
TopObjectList++;
|
|
}
|
|
|
|
/*
|
|
* Add an extra element to the end of the list, essentially a
|
|
* NULL terminator
|
|
*/
|
|
*BufferSizeNeeded = TempSizeNeeded + sizeof (ACPI_PCI_ROUTING_TABLE);
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|