1611ea8727
- Add S4BIOS sleep implementation. This will works well if MIB hw.acpi.s4bios is set (and of course BIOS supports it and hibernation is enabled correctly). - Add DSDT overriding support which is submitted by takawata originally. If loader tunable acpi_dsdt_load="YES" and DSDT file is set to acpi_dsdt_name (default DSDT file name is /boot/acpi_dsdt.aml), ACPI CA core loads DSDT from given file rather than BIOS memory block. DSDT file can be generated by iasl in ports/devel/acpicatools/. - Add new files so that we can add our proposed additional code to Intel ACPI CA into these files temporary. They will be removed when similar code is added into ACPI CA officially.
890 lines
25 KiB
C
890 lines
25 KiB
C
/******************************************************************************
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*
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* Module Name: tbget - ACPI Table get* routines
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* $Revision: 56 $
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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, 2000, 2001, 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
|
|
* 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
|
|
* 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
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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 __TBGET_C__
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#include "acpi.h"
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#include "achware.h"
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#include "actables.h"
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#define _COMPONENT ACPI_TABLES
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MODULE_NAME ("tbget")
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#define RSDP_CHECKSUM_LENGTH 20
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbGetTablePtr
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*
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* PARAMETERS: TableType - one of the defined table types
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* Instance - Which table of this type
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* TablePtrLoc - pointer to location to place the pointer for
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* return
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the pointer to an ACPI table.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbGetTablePtr (
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ACPI_TABLE_TYPE TableType,
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UINT32 Instance,
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ACPI_TABLE_HEADER **TablePtrLoc)
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{
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ACPI_TABLE_DESC *TableDesc;
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UINT32 i;
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FUNCTION_TRACE ("TbGetTablePtr");
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if (!AcpiGbl_DSDT)
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{
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return_ACPI_STATUS (AE_NO_ACPI_TABLES);
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}
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if (TableType > ACPI_TABLE_MAX)
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{
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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/*
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* For all table types (Single/Multiple), the first
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* instance is always in the list head.
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*/
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if (Instance == 1)
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{
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/*
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* Just pluck the pointer out of the global table!
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* Will be null if no table is present
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*/
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*TablePtrLoc = AcpiGbl_AcpiTables[TableType].Pointer;
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return_ACPI_STATUS (AE_OK);
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}
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/*
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* Check for instance out of range
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*/
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if (Instance > AcpiGbl_AcpiTables[TableType].Count)
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{
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return_ACPI_STATUS (AE_NOT_EXIST);
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}
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/* Walk the list to get the desired table
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* Since the if (Instance == 1) check above checked for the
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* first table, setting TableDesc equal to the .Next member
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* is actually pointing to the second table. Therefore, we
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* need to walk from the 2nd table until we reach the Instance
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* that the user is looking for and return its table pointer.
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*/
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TableDesc = AcpiGbl_AcpiTables[TableType].Next;
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for (i = 2; i < Instance; i++)
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{
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TableDesc = TableDesc->Next;
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}
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/* We are now pointing to the requested table's descriptor */
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*TablePtrLoc = TableDesc->Pointer;
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbGetTable
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*
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* PARAMETERS: PhysicalAddress - Physical address of table to retrieve
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* *BufferPtr - If BufferPtr is valid, read data from
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* buffer rather than searching memory
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* *TableInfo - Where the table info is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Maps the physical address of table into a logical address
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbGetTable (
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ACPI_PHYSICAL_ADDRESS PhysicalAddress,
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ACPI_TABLE_HEADER *BufferPtr,
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ACPI_TABLE_DESC *TableInfo)
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{
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ACPI_TABLE_HEADER *TableHeader = NULL;
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ACPI_TABLE_HEADER *FullTable = NULL;
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UINT32 Size;
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UINT8 Allocation;
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ACPI_STATUS Status = AE_OK;
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FUNCTION_TRACE ("TbGetTable");
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if (!TableInfo)
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{
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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if (BufferPtr)
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{
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/*
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* Getting data from a buffer, not BIOS tables
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*/
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TableHeader = BufferPtr;
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Status = AcpiTbValidateTableHeader (TableHeader);
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if (ACPI_FAILURE (Status))
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{
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/* Table failed verification, map all errors to BAD_DATA */
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return_ACPI_STATUS (AE_BAD_DATA);
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}
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/* Allocate buffer for the entire table */
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FullTable = ACPI_MEM_ALLOCATE (TableHeader->Length);
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if (!FullTable)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Copy the entire table (including header) to the local buffer */
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Size = TableHeader->Length;
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MEMCPY (FullTable, BufferPtr, Size);
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/* Save allocation type */
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Allocation = ACPI_MEM_ALLOCATED;
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}
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/*
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* Not reading from a buffer, just map the table's physical memory
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* into our address space.
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*/
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else
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{
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Size = SIZE_IN_HEADER;
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Status = AcpiTbMapAcpiTable (PhysicalAddress, &Size, &FullTable);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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|
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/* Save allocation type */
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Allocation = ACPI_MEM_MAPPED;
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}
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|
|
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/* Return values */
|
|
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TableInfo->Pointer = FullTable;
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TableInfo->Length = Size;
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TableInfo->Allocation = Allocation;
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TableInfo->BasePointer = FullTable;
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return_ACPI_STATUS (Status);
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}
|
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|
|
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|
/*******************************************************************************
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*
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* FUNCTION: AcpiTbGetAllTables
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*
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* PARAMETERS: NumberOfTables - Number of tables to get
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* TablePtr - Input buffer pointer, optional
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*
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* RETURN: Status
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*
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* DESCRIPTION: Load and validate all tables other than the RSDT. The RSDT must
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* already be loaded and validated.
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*
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******************************************************************************/
|
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ACPI_STATUS
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AcpiTbGetAllTables (
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UINT32 NumberOfTables,
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ACPI_TABLE_HEADER *TablePtr)
|
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{
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ACPI_STATUS Status = AE_OK;
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UINT32 Index;
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ACPI_TABLE_DESC TableInfo;
|
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|
|
|
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FUNCTION_TRACE ("TbGetAllTables");
|
|
|
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ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Number of tables: %d\n", NumberOfTables));
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|
|
|
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/*
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* Loop through all table pointers found in RSDT.
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* This will NOT include the FACS and DSDT - we must get
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* them after the loop
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*/
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for (Index = 0; Index < NumberOfTables; Index++)
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{
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/* Clear the TableInfo each time */
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|
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MEMSET (&TableInfo, 0, sizeof (ACPI_TABLE_DESC));
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|
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/* Get the table via the XSDT */
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|
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Status = AcpiTbGetTable ((ACPI_PHYSICAL_ADDRESS)
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ACPI_GET_ADDRESS (AcpiGbl_XSDT->TableOffsetEntry[Index]),
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TablePtr, &TableInfo);
|
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|
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/* Ignore a table that failed verification */
|
|
|
|
if (Status == AE_BAD_DATA)
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{
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continue;
|
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}
|
|
|
|
/* However, abort on serious errors */
|
|
|
|
if (ACPI_FAILURE (Status))
|
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{
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return_ACPI_STATUS (Status);
|
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}
|
|
|
|
/* Recognize and install the table */
|
|
|
|
Status = AcpiTbInstallTable (TablePtr, &TableInfo);
|
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if (ACPI_FAILURE (Status))
|
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{
|
|
/*
|
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* Unrecognized or unsupported table, delete it and ignore the
|
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* error. Just get as many tables as we can, later we will
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* determine if there are enough tables to continue.
|
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*/
|
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AcpiTbUninstallTable (&TableInfo);
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}
|
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}
|
|
|
|
|
|
/*
|
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* Convert the FADT to a common format. This allows earlier revisions of the
|
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* table to coexist with newer versions, using common access code.
|
|
*/
|
|
Status = AcpiTbConvertTableFadt ();
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*
|
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* Get the minimum set of ACPI tables, namely:
|
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*
|
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* 1) FADT (via RSDT in loop above)
|
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* 2) FACS
|
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* 3) DSDT
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*
|
|
*/
|
|
|
|
/*
|
|
* Get the FACS (must have the FADT first, from loop above)
|
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* AcpiTbGetTableFacs will fail if FADT pointer is not valid
|
|
*/
|
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Status = AcpiTbGetTableFacs (TablePtr, &TableInfo);
|
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if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Install the FACS */
|
|
|
|
Status = AcpiTbInstallTable (TablePtr, &TableInfo);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Create the common FACS pointer table
|
|
* (Contains pointers to the original table)
|
|
*/
|
|
Status = AcpiTbBuildCommonFacs (&TableInfo);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*
|
|
* Get the DSDT (We know that the FADT is valid now)
|
|
*/
|
|
Status = AcpiTbGetTable ((ACPI_PHYSICAL_ADDRESS) ACPI_GET_ADDRESS (AcpiGbl_FADT->XDsdt),
|
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((AcpiGbl_DSDT) ?
|
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AcpiGbl_DSDT: TablePtr), &TableInfo);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Install the DSDT */
|
|
|
|
Status = AcpiTbInstallTable (TablePtr, &TableInfo);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Dump the DSDT Header */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Hex dump of DSDT Header:\n"));
|
|
DUMP_BUFFER ((UINT8 *) AcpiGbl_DSDT, sizeof (ACPI_TABLE_HEADER));
|
|
|
|
/* Dump the entire DSDT */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
|
|
"Hex dump of DSDT (After header), size %d (%x)\n",
|
|
AcpiGbl_DSDT->Length, AcpiGbl_DSDT->Length));
|
|
DUMP_BUFFER ((UINT8 *) (AcpiGbl_DSDT + 1), AcpiGbl_DSDT->Length);
|
|
|
|
/*
|
|
* Initialize the capabilities flags.
|
|
* Assumes that platform supports ACPI_MODE since we have tables!
|
|
*/
|
|
AcpiGbl_SystemFlags |= AcpiHwGetModeCapabilities ();
|
|
|
|
|
|
/* Always delete the RSDP mapping, we are done with it */
|
|
|
|
AcpiTbDeleteAcpiTable (ACPI_TABLE_RSDP);
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbVerifyRsdp
|
|
*
|
|
* PARAMETERS: NumberOfTables - Where the table count is placed
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbVerifyRsdp (
|
|
ACPI_PHYSICAL_ADDRESS RsdpPhysicalAddress)
|
|
{
|
|
ACPI_TABLE_DESC TableInfo;
|
|
ACPI_STATUS Status;
|
|
UINT8 *TablePtr;
|
|
|
|
|
|
FUNCTION_TRACE ("TbVerifyRsdp");
|
|
|
|
|
|
/*
|
|
* Obtain access to the RSDP structure
|
|
*/
|
|
Status = AcpiOsMapMemory (RsdpPhysicalAddress, sizeof (RSDP_DESCRIPTOR),
|
|
(void **) &TablePtr);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* The signature and checksum must both be correct
|
|
*/
|
|
if (STRNCMP ((NATIVE_CHAR *) TablePtr, RSDP_SIG, sizeof (RSDP_SIG)-1) != 0)
|
|
{
|
|
/* Nope, BAD Signature */
|
|
|
|
Status = AE_BAD_SIGNATURE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
if (AcpiTbChecksum (TablePtr, RSDP_CHECKSUM_LENGTH) != 0)
|
|
{
|
|
/* Nope, BAD Checksum */
|
|
|
|
Status = AE_BAD_CHECKSUM;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* TBD: Check extended checksum if table version >= 2 */
|
|
|
|
/* The RSDP supplied is OK */
|
|
|
|
TableInfo.Pointer = (ACPI_TABLE_HEADER *) TablePtr;
|
|
TableInfo.Length = sizeof (RSDP_DESCRIPTOR);
|
|
TableInfo.Allocation = ACPI_MEM_MAPPED;
|
|
TableInfo.BasePointer = TablePtr;
|
|
|
|
/* Save the table pointers and allocation info */
|
|
|
|
Status = AcpiTbInitTableDescriptor (ACPI_TABLE_RSDP, &TableInfo);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
goto Cleanup;
|
|
}
|
|
|
|
|
|
/* Save the RSDP in a global for easy access */
|
|
|
|
AcpiGbl_RSDP = (RSDP_DESCRIPTOR *) TableInfo.Pointer;
|
|
return_ACPI_STATUS (Status);
|
|
|
|
|
|
/* Error exit */
|
|
Cleanup:
|
|
|
|
AcpiOsUnmapMemory (TablePtr, sizeof (RSDP_DESCRIPTOR));
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbGetRsdtAddress
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: RSDT physical address
|
|
*
|
|
* DESCRIPTION: Extract the address of the RSDT or XSDT, depending on the
|
|
* version of the RSDP
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_PHYSICAL_ADDRESS
|
|
AcpiTbGetRsdtAddress (void)
|
|
{
|
|
ACPI_PHYSICAL_ADDRESS PhysicalAddress;
|
|
|
|
|
|
FUNCTION_ENTRY ();
|
|
|
|
|
|
/*
|
|
* For RSDP revision 0 or 1, we use the RSDT.
|
|
* For RSDP revision 2 (and above), we use the XSDT
|
|
*/
|
|
if (AcpiGbl_RSDP->Revision < 2)
|
|
{
|
|
#ifdef _IA64
|
|
/* 0.71 RSDP has 64bit Rsdt address field */
|
|
PhysicalAddress = ((RSDP_DESCRIPTOR_REV071 *)AcpiGbl_RSDP)->RsdtPhysicalAddress;
|
|
#else
|
|
PhysicalAddress = (ACPI_PHYSICAL_ADDRESS) AcpiGbl_RSDP->RsdtPhysicalAddress;
|
|
#endif
|
|
}
|
|
|
|
else
|
|
{
|
|
PhysicalAddress = (ACPI_PHYSICAL_ADDRESS)
|
|
ACPI_GET_ADDRESS (AcpiGbl_RSDP->XsdtPhysicalAddress);
|
|
}
|
|
|
|
return (PhysicalAddress);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbValidateRsdt
|
|
*
|
|
* PARAMETERS: TablePtr - Addressable pointer to the RSDT.
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Validate signature for the RSDT or XSDT
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbValidateRsdt (
|
|
ACPI_TABLE_HEADER *TablePtr)
|
|
{
|
|
UINT32 NoMatch;
|
|
|
|
|
|
PROC_NAME ("TbValidateRsdt");
|
|
|
|
|
|
/*
|
|
* For RSDP revision 0 or 1, we use the RSDT.
|
|
* For RSDP revision 2 (and above), we use the XSDT
|
|
*/
|
|
if (AcpiGbl_RSDP->Revision < 2)
|
|
{
|
|
NoMatch = STRNCMP ((char *) TablePtr, RSDT_SIG,
|
|
sizeof (RSDT_SIG) -1);
|
|
}
|
|
else
|
|
{
|
|
NoMatch = STRNCMP ((char *) TablePtr, XSDT_SIG,
|
|
sizeof (XSDT_SIG) -1);
|
|
}
|
|
|
|
|
|
if (NoMatch)
|
|
{
|
|
/* Invalid RSDT or XSDT signature */
|
|
|
|
REPORT_ERROR (("Invalid signature where RSDP indicates RSDT/XSDT should be located\n"));
|
|
|
|
DUMP_BUFFER (AcpiGbl_RSDP, 20);
|
|
|
|
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR,
|
|
"RSDT/XSDT signature at %X is invalid\n",
|
|
AcpiGbl_RSDP->RsdtPhysicalAddress));
|
|
|
|
return (AE_BAD_SIGNATURE);
|
|
}
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbGetTablePointer
|
|
*
|
|
* PARAMETERS: PhysicalAddress - Address from RSDT
|
|
* Flags - virtual or physical addressing
|
|
* TablePtr - Addressable address (output)
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create an addressable pointer to an ACPI table
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbGetTablePointer (
|
|
ACPI_PHYSICAL_ADDRESS PhysicalAddress,
|
|
UINT32 Flags,
|
|
UINT32 *Size,
|
|
ACPI_TABLE_HEADER **TablePtr)
|
|
{
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
FUNCTION_ENTRY ();
|
|
|
|
|
|
if ((Flags & ACPI_MEMORY_MODE) == ACPI_LOGICAL_ADDRESSING)
|
|
{
|
|
*Size = SIZE_IN_HEADER;
|
|
Status = AcpiTbMapAcpiTable (PhysicalAddress, Size, TablePtr);
|
|
}
|
|
|
|
else
|
|
{
|
|
*Size = 0;
|
|
*TablePtr = (ACPI_TABLE_HEADER *) (ACPI_TBLPTR) PhysicalAddress;
|
|
|
|
Status = AE_OK;
|
|
}
|
|
|
|
return (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbGetTableRsdt
|
|
*
|
|
* PARAMETERS: NumberOfTables - Where the table count is placed
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table)
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbGetTableRsdt (
|
|
UINT32 *NumberOfTables)
|
|
{
|
|
ACPI_TABLE_DESC TableInfo;
|
|
ACPI_STATUS Status;
|
|
ACPI_PHYSICAL_ADDRESS PhysicalAddress;
|
|
|
|
|
|
FUNCTION_TRACE ("TbGetTableRsdt");
|
|
|
|
|
|
/*
|
|
* Get the RSDT from the RSDP
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
|
|
"RSDP located at %p, RSDT physical=%8.8X%8.8X \n",
|
|
AcpiGbl_RSDP, HIDWORD(AcpiGbl_RSDP->RsdtPhysicalAddress),
|
|
LODWORD(AcpiGbl_RSDP->RsdtPhysicalAddress)));
|
|
|
|
|
|
PhysicalAddress = AcpiTbGetRsdtAddress ();
|
|
|
|
|
|
/* Get the RSDT/XSDT */
|
|
|
|
Status = AcpiTbGetTable (PhysicalAddress, NULL, &TableInfo);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not get the RSDT, %s\n",
|
|
AcpiFormatException (Status)));
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/* Check the RSDT or XSDT signature */
|
|
|
|
Status = AcpiTbValidateRsdt (TableInfo.Pointer);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*
|
|
* Valid RSDT signature, verify the checksum. If it fails, just
|
|
* print a warning and ignore it.
|
|
*/
|
|
Status = AcpiTbVerifyTableChecksum (TableInfo.Pointer);
|
|
|
|
|
|
/* Convert and/or copy to an XSDT structure */
|
|
|
|
Status = AcpiTbConvertToXsdt (&TableInfo, NumberOfTables);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Save the table pointers and allocation info */
|
|
|
|
Status = AcpiTbInitTableDescriptor (ACPI_TABLE_XSDT, &TableInfo);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
AcpiGbl_XSDT = (XSDT_DESCRIPTOR *) TableInfo.Pointer;
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "XSDT located at %p\n", AcpiGbl_XSDT));
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiTbGetTableFacs
|
|
*
|
|
* PARAMETERS: *BufferPtr - If BufferPtr is valid, read data from
|
|
* buffer rather than searching memory
|
|
* *TableInfo - Where the table info is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Returns a pointer to the FACS as defined in FADT. This
|
|
* function assumes the global variable FADT has been
|
|
* correctly initialized. The value of FADT->FirmwareCtrl
|
|
* into a far pointer which is returned.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiTbGetTableFacs (
|
|
ACPI_TABLE_HEADER *BufferPtr,
|
|
ACPI_TABLE_DESC *TableInfo)
|
|
{
|
|
ACPI_TABLE_HEADER *TablePtr = NULL;
|
|
UINT32 Size;
|
|
UINT8 Allocation;
|
|
ACPI_STATUS Status = AE_OK;
|
|
|
|
|
|
FUNCTION_TRACE ("TbGetTableFacs");
|
|
|
|
|
|
/* Must have a valid FADT pointer */
|
|
|
|
if (!AcpiGbl_FADT)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_ACPI_TABLES);
|
|
}
|
|
|
|
Size = sizeof (FACS_DESCRIPTOR);
|
|
if (BufferPtr)
|
|
{
|
|
/*
|
|
* Getting table from a file -- allocate a buffer and
|
|
* read the table.
|
|
*/
|
|
TablePtr = ACPI_MEM_ALLOCATE (Size);
|
|
if(!TablePtr)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
MEMCPY (TablePtr, BufferPtr, Size);
|
|
|
|
/* Save allocation type */
|
|
|
|
Allocation = ACPI_MEM_ALLOCATED;
|
|
}
|
|
|
|
else
|
|
{
|
|
/* Just map the physical memory to our address space */
|
|
|
|
Status = AcpiTbMapAcpiTable ((ACPI_PHYSICAL_ADDRESS) ACPI_GET_ADDRESS (AcpiGbl_FADT->XFirmwareCtrl),
|
|
&Size, &TablePtr);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Save allocation type */
|
|
|
|
Allocation = ACPI_MEM_MAPPED;
|
|
}
|
|
|
|
|
|
/* Return values */
|
|
|
|
TableInfo->Pointer = TablePtr;
|
|
TableInfo->Length = Size;
|
|
TableInfo->Allocation = Allocation;
|
|
TableInfo->BasePointer = TablePtr;
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|