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minix/drivers/acpi/tables/tbinstal.c
Tomas Hruby 9560b6dea8 ACPI driver 
- 99% of the code is Intel's ACPICA. The license is compliant with BSD
  and GNU and virtually all systems that use ACPI use this code, For
  instance it is part of the Linux kernel.

- The only minix specific files are

  acpi.c
  osminixxf.c
  platform/acminix.h

  and

  include/minix/acpi.h

- At the moment the driver does not register interrupt hooks which I
  believe is mainly for handling PnP, events like "battery level is
  low" and power management. Should not be difficult to add it if need
  be.

- The interface to the outside world is virtually non-existent except
  a trivial message based service for PCI driver to query which device
  is connected to what IRQ line. This will evolve as more components
  start using this driver. VM, Scheduler and IOMMU are the possible
  users right now.

- because of dependency on a native 64bit (long long, part of c99) it
  is compiled only with a gnu-like compilers which in case of Minix
  includes gcc llvm-gcc and clang
2010-09-02 15:44:04 +00:00

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/******************************************************************************
*
* Module Name: tbinstal - ACPI table installation and removal
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
* All rights reserved.
*
* 2. License
*
* 2.1. This is your license from Intel Corp. under its intellectual property
* rights. You may have additional license terms from the party that provided
* you this software, covering your right to use that party's intellectual
* property rights.
*
* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
* copy of the source code appearing in this file ("Covered Code") an
* irrevocable, perpetual, worldwide license under Intel's copyrights in the
* base code distributed originally by Intel ("Original Intel Code") to copy,
* make derivatives, distribute, use and display any portion of the Covered
* Code in any form, with the right to sublicense such rights; and
*
* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
* license (with the right to sublicense), under only those claims of Intel
* patents that are infringed by the Original Intel Code, to make, use, sell,
* offer to sell, and import the Covered Code and derivative works thereof
* solely to the minimum extent necessary to exercise the above copyright
* license, and in no event shall the patent license extend to any additions
* to or modifications of the Original Intel Code. No other license or right
* is granted directly or by implication, estoppel or otherwise;
*
* The above copyright and patent license is granted only if the following
* conditions are met:
*
* 3. Conditions
*
* 3.1. Redistribution of Source with Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification with rights to further distribute source must include
* the above Copyright Notice, the above License, this list of Conditions,
* and the following Disclaimer and Export Compliance provision. In addition,
* Licensee must cause all Covered Code to which Licensee contributes to
* contain a file documenting the changes Licensee made to create that Covered
* Code and the date of any change. Licensee must include in that file the
* documentation of any changes made by any predecessor Licensee. Licensee
* must include a prominent statement that the modification is derived,
* directly or indirectly, from Original Intel Code.
*
* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
* Redistribution of source code of any substantial portion of the Covered
* Code or modification without rights to further distribute source must
* include the following Disclaimer and Export Compliance provision in the
* documentation and/or other materials provided with distribution. In
* addition, Licensee may not authorize further sublicense of source of any
* portion of the Covered Code, and must include terms to the effect that the
* license from Licensee to its licensee is limited to the intellectual
* property embodied in the software Licensee provides to its licensee, and
* not to intellectual property embodied in modifications its licensee may
* make.
*
* 3.3. Redistribution of Executable. Redistribution in executable form of any
* substantial portion of the Covered Code or modification must reproduce the
* above Copyright Notice, and the following Disclaimer and Export Compliance
* provision in the documentation and/or other materials provided with the
* distribution.
*
* 3.4. Intel retains all right, title, and interest in and to the Original
* Intel Code.
*
* 3.5. Neither the name Intel nor any other trademark owned or controlled by
* Intel shall be used in advertising or otherwise to promote the sale, use or
* other dealings in products derived from or relating to the Covered Code
* without prior written authorization from Intel.
*
* 4. Disclaimer and Export Compliance
*
* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
* PARTICULAR PURPOSE.
*
* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
* LIMITED REMEDY.
*
* 4.3. Licensee shall not export, either directly or indirectly, any of this
* software or system incorporating such software without first obtaining any
* required license or other approval from the U. S. Department of Commerce or
* any other agency or department of the United States Government. In the
* event Licensee exports any such software from the United States or
* re-exports any such software from a foreign destination, Licensee shall
* ensure that the distribution and export/re-export of the software is in
* compliance with all laws, regulations, orders, or other restrictions of the
* U.S. Export Administration Regulations. Licensee agrees that neither it nor
* any of its subsidiaries will export/re-export any technical data, process,
* software, or service, directly or indirectly, to any country for which the
* United States government or any agency thereof requires an export license,
* other governmental approval, or letter of assurance, without first obtaining
* such license, approval or letter.
*
*****************************************************************************/
#define __TBINSTAL_C__
#include "acpi.h"
#include "accommon.h"
#include "acnamesp.h"
#include "actables.h"
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME ("tbinstal")
/******************************************************************************
*
* FUNCTION: AcpiTbVerifyTable
*
* PARAMETERS: TableDesc - table
*
* RETURN: Status
*
* DESCRIPTION: this function is called to verify and map table
*
*****************************************************************************/
ACPI_STATUS
AcpiTbVerifyTable (
ACPI_TABLE_DESC *TableDesc)
{
ACPI_STATUS Status = AE_OK;
ACPI_FUNCTION_TRACE (TbVerifyTable);
/* Map the table if necessary */
if (!TableDesc->Pointer)
{
if ((TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK) ==
ACPI_TABLE_ORIGIN_MAPPED)
{
TableDesc->Pointer = AcpiOsMapMemory (
TableDesc->Address, TableDesc->Length);
}
if (!TableDesc->Pointer)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
}
/* FACS is the odd table, has no standard ACPI header and no checksum */
if (!ACPI_COMPARE_NAME (&TableDesc->Signature, ACPI_SIG_FACS))
{
/* Always calculate checksum, ignore bad checksum if requested */
Status = AcpiTbVerifyChecksum (TableDesc->Pointer, TableDesc->Length);
}
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbAddTable
*
* PARAMETERS: TableDesc - Table descriptor
* TableIndex - Where the table index is returned
*
* RETURN: Status
*
* DESCRIPTION: This function is called to add an ACPI table. It is used to
* dynamically load tables via the Load and LoadTable AML
* operators.
*
******************************************************************************/
ACPI_STATUS
AcpiTbAddTable (
ACPI_TABLE_DESC *TableDesc,
UINT32 *TableIndex)
{
UINT32 i;
ACPI_STATUS Status = AE_OK;
ACPI_TABLE_HEADER *OverrideTable = NULL;
ACPI_FUNCTION_TRACE (TbAddTable);
if (!TableDesc->Pointer)
{
Status = AcpiTbVerifyTable (TableDesc);
if (ACPI_FAILURE (Status) || !TableDesc->Pointer)
{
return_ACPI_STATUS (Status);
}
}
/*
* Originally, we checked the table signature for "SSDT" or "PSDT" here.
* Next, we added support for OEMx tables, signature "OEM".
* Valid tables were encountered with a null signature, so we've just
* given up on validating the signature, since it seems to be a waste
* of code. The original code was removed (05/2008).
*/
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/* Check if table is already registered */
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
{
if (!AcpiGbl_RootTableList.Tables[i].Pointer)
{
Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]);
if (ACPI_FAILURE (Status) ||
!AcpiGbl_RootTableList.Tables[i].Pointer)
{
continue;
}
}
/*
* Check for a table match on the entire table length,
* not just the header.
*/
if (TableDesc->Length != AcpiGbl_RootTableList.Tables[i].Length)
{
continue;
}
if (ACPI_MEMCMP (TableDesc->Pointer,
AcpiGbl_RootTableList.Tables[i].Pointer,
AcpiGbl_RootTableList.Tables[i].Length))
{
continue;
}
/*
* Note: the current mechanism does not unregister a table if it is
* dynamically unloaded. The related namespace entries are deleted,
* but the table remains in the root table list.
*
* The assumption here is that the number of different tables that
* will be loaded is actually small, and there is minimal overhead
* in just keeping the table in case it is needed again.
*
* If this assumption changes in the future (perhaps on large
* machines with many table load/unload operations), tables will
* need to be unregistered when they are unloaded, and slots in the
* root table list should be reused when empty.
*/
/*
* Table is already registered.
* We can delete the table that was passed as a parameter.
*/
AcpiTbDeleteTable (TableDesc);
*TableIndex = i;
if (AcpiGbl_RootTableList.Tables[i].Flags & ACPI_TABLE_IS_LOADED)
{
/* Table is still loaded, this is an error */
Status = AE_ALREADY_EXISTS;
goto Release;
}
else
{
/* Table was unloaded, allow it to be reloaded */
TableDesc->Pointer = AcpiGbl_RootTableList.Tables[i].Pointer;
TableDesc->Address = AcpiGbl_RootTableList.Tables[i].Address;
Status = AE_OK;
goto PrintHeader;
}
}
/*
* ACPI Table Override:
* Allow the host to override dynamically loaded tables.
*/
Status = AcpiOsTableOverride (TableDesc->Pointer, &OverrideTable);
if (ACPI_SUCCESS (Status) && OverrideTable)
{
ACPI_INFO ((AE_INFO,
"%4.4s @ 0x%p Table override, replaced with:",
TableDesc->Pointer->Signature,
ACPI_CAST_PTR (void, TableDesc->Address)));
/* We can delete the table that was passed as a parameter */
AcpiTbDeleteTable (TableDesc);
/* Setup descriptor for the new table */
TableDesc->Address = ACPI_PTR_TO_PHYSADDR (OverrideTable);
TableDesc->Pointer = OverrideTable;
TableDesc->Length = OverrideTable->Length;
TableDesc->Flags = ACPI_TABLE_ORIGIN_OVERRIDE;
}
/* Add the table to the global root table list */
Status = AcpiTbStoreTable (TableDesc->Address, TableDesc->Pointer,
TableDesc->Length, TableDesc->Flags, TableIndex);
if (ACPI_FAILURE (Status))
{
goto Release;
}
PrintHeader:
AcpiTbPrintTableHeader (TableDesc->Address, TableDesc->Pointer);
Release:
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbResizeRootTableList
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Expand the size of global table array
*
******************************************************************************/
ACPI_STATUS
AcpiTbResizeRootTableList (
void)
{
ACPI_TABLE_DESC *Tables;
ACPI_FUNCTION_TRACE (TbResizeRootTableList);
/* AllowResize flag is a parameter to AcpiInitializeTables */
if (!(AcpiGbl_RootTableList.Flags & ACPI_ROOT_ALLOW_RESIZE))
{
ACPI_ERROR ((AE_INFO, "Resize of Root Table Array is not allowed"));
return_ACPI_STATUS (AE_SUPPORT);
}
/* Increase the Table Array size */
Tables = ACPI_ALLOCATE_ZEROED (
((ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount +
ACPI_ROOT_TABLE_SIZE_INCREMENT) *
sizeof (ACPI_TABLE_DESC));
if (!Tables)
{
ACPI_ERROR ((AE_INFO, "Could not allocate new root table array"));
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Copy and free the previous table array */
if (AcpiGbl_RootTableList.Tables)
{
ACPI_MEMCPY (Tables, AcpiGbl_RootTableList.Tables,
(ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount * sizeof (ACPI_TABLE_DESC));
if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
{
ACPI_FREE (AcpiGbl_RootTableList.Tables);
}
}
AcpiGbl_RootTableList.Tables = Tables;
AcpiGbl_RootTableList.MaxTableCount += ACPI_ROOT_TABLE_SIZE_INCREMENT;
AcpiGbl_RootTableList.Flags |= (UINT8) ACPI_ROOT_ORIGIN_ALLOCATED;
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbStoreTable
*
* PARAMETERS: Address - Table address
* Table - Table header
* Length - Table length
* Flags - flags
*
* RETURN: Status and table index.
*
* DESCRIPTION: Add an ACPI table to the global table list
*
******************************************************************************/
ACPI_STATUS
AcpiTbStoreTable (
ACPI_PHYSICAL_ADDRESS Address,
ACPI_TABLE_HEADER *Table,
UINT32 Length,
UINT8 Flags,
UINT32 *TableIndex)
{
ACPI_STATUS Status;
ACPI_TABLE_DESC *NewTable;
/* Ensure that there is room for the table in the Root Table List */
if (AcpiGbl_RootTableList.CurrentTableCount >=
AcpiGbl_RootTableList.MaxTableCount)
{
Status = AcpiTbResizeRootTableList();
if (ACPI_FAILURE (Status))
{
return (Status);
}
}
NewTable = &AcpiGbl_RootTableList.Tables[AcpiGbl_RootTableList.CurrentTableCount];
/* Initialize added table */
NewTable->Address = Address;
NewTable->Pointer = Table;
NewTable->Length = Length;
NewTable->OwnerId = 0;
NewTable->Flags = Flags;
ACPI_MOVE_32_TO_32 (&NewTable->Signature, Table->Signature);
*TableIndex = AcpiGbl_RootTableList.CurrentTableCount;
AcpiGbl_RootTableList.CurrentTableCount++;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbDeleteTable
*
* PARAMETERS: TableIndex - Table index
*
* RETURN: None
*
* DESCRIPTION: Delete one internal ACPI table
*
******************************************************************************/
void
AcpiTbDeleteTable (
ACPI_TABLE_DESC *TableDesc)
{
/* Table must be mapped or allocated */
if (!TableDesc->Pointer)
{
return;
}
switch (TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK)
{
case ACPI_TABLE_ORIGIN_MAPPED:
AcpiOsUnmapMemory (TableDesc->Pointer, TableDesc->Length);
break;
case ACPI_TABLE_ORIGIN_ALLOCATED:
ACPI_FREE (TableDesc->Pointer);
break;
default:
break;
}
TableDesc->Pointer = NULL;
}
/*******************************************************************************
*
* FUNCTION: AcpiTbTerminate
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Delete all internal ACPI tables
*
******************************************************************************/
void
AcpiTbTerminate (
void)
{
UINT32 i;
ACPI_FUNCTION_TRACE (TbTerminate);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/* Delete the individual tables */
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
{
AcpiTbDeleteTable (&AcpiGbl_RootTableList.Tables[i]);
}
/*
* Delete the root table array if allocated locally. Array cannot be
* mapped, so we don't need to check for that flag.
*/
if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
{
ACPI_FREE (AcpiGbl_RootTableList.Tables);
}
AcpiGbl_RootTableList.Tables = NULL;
AcpiGbl_RootTableList.Flags = 0;
AcpiGbl_RootTableList.CurrentTableCount = 0;
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n"));
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbDeleteNamespaceByOwner
*
* PARAMETERS: TableIndex - Table index
*
* RETURN: Status
*
* DESCRIPTION: Delete all namespace objects created when this table was loaded.
*
******************************************************************************/
ACPI_STATUS
AcpiTbDeleteNamespaceByOwner (
UINT32 TableIndex)
{
ACPI_OWNER_ID OwnerId;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (TbDeleteNamespaceByOwner);
Status = AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
if (TableIndex >= AcpiGbl_RootTableList.CurrentTableCount)
{
/* The table index does not exist */
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (AE_NOT_EXIST);
}
/* Get the owner ID for this table, used to delete namespace nodes */
OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId;
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
/*
* Need to acquire the namespace writer lock to prevent interference
* with any concurrent namespace walks. The interpreter must be
* released during the deletion since the acquisition of the deletion
* lock may block, and also since the execution of a namespace walk
* must be allowed to use the interpreter.
*/
(void) AcpiUtReleaseMutex (ACPI_MTX_INTERPRETER);
Status = AcpiUtAcquireWriteLock (&AcpiGbl_NamespaceRwLock);
AcpiNsDeleteNamespaceByOwner (OwnerId);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
AcpiUtReleaseWriteLock (&AcpiGbl_NamespaceRwLock);
Status = AcpiUtAcquireMutex (ACPI_MTX_INTERPRETER);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbAllocateOwnerId
*
* PARAMETERS: TableIndex - Table index
*
* RETURN: Status
*
* DESCRIPTION: Allocates OwnerId in TableDesc
*
******************************************************************************/
ACPI_STATUS
AcpiTbAllocateOwnerId (
UINT32 TableIndex)
{
ACPI_STATUS Status = AE_BAD_PARAMETER;
ACPI_FUNCTION_TRACE (TbAllocateOwnerId);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
{
Status = AcpiUtAllocateOwnerId
(&(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId));
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbReleaseOwnerId
*
* PARAMETERS: TableIndex - Table index
*
* RETURN: Status
*
* DESCRIPTION: Releases OwnerId in TableDesc
*
******************************************************************************/
ACPI_STATUS
AcpiTbReleaseOwnerId (
UINT32 TableIndex)
{
ACPI_STATUS Status = AE_BAD_PARAMETER;
ACPI_FUNCTION_TRACE (TbReleaseOwnerId);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
{
AcpiUtReleaseOwnerId (
&(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId));
Status = AE_OK;
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbGetOwnerId
*
* PARAMETERS: TableIndex - Table index
* OwnerId - Where the table OwnerId is returned
*
* RETURN: Status
*
* DESCRIPTION: returns OwnerId for the ACPI table
*
******************************************************************************/
ACPI_STATUS
AcpiTbGetOwnerId (
UINT32 TableIndex,
ACPI_OWNER_ID *OwnerId)
{
ACPI_STATUS Status = AE_BAD_PARAMETER;
ACPI_FUNCTION_TRACE (TbGetOwnerId);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
{
*OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId;
Status = AE_OK;
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbIsTableLoaded
*
* PARAMETERS: TableIndex - Table index
*
* RETURN: Table Loaded Flag
*
******************************************************************************/
BOOLEAN
AcpiTbIsTableLoaded (
UINT32 TableIndex)
{
BOOLEAN IsLoaded = FALSE;
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
{
IsLoaded = (BOOLEAN)
(AcpiGbl_RootTableList.Tables[TableIndex].Flags &
ACPI_TABLE_IS_LOADED);
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return (IsLoaded);
}
/*******************************************************************************
*
* FUNCTION: AcpiTbSetTableLoadedFlag
*
* PARAMETERS: TableIndex - Table index
* IsLoaded - TRUE if table is loaded, FALSE otherwise
*
* RETURN: None
*
* DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE.
*
******************************************************************************/
void
AcpiTbSetTableLoadedFlag (
UINT32 TableIndex,
BOOLEAN IsLoaded)
{
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
{
if (IsLoaded)
{
AcpiGbl_RootTableList.Tables[TableIndex].Flags |=
ACPI_TABLE_IS_LOADED;
}
else
{
AcpiGbl_RootTableList.Tables[TableIndex].Flags &=
~ACPI_TABLE_IS_LOADED;
}
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
}
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