FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/components/utilities/utinit.c

     /******************************************************************************
      *
      * Module Name: utinit - Common ACPI subsystem initialization
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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.
    *
    *****************************************************************************
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * following license:
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions, and the following disclaimer,
    *    without modification.
    * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    *    substantially similar to the "NO WARRANTY" disclaimer below
    *    ("Disclaimer") and any redistribution must be conditioned upon
    *    including a substantially similar Disclaimer requirement for further
    *    binary redistribution.
    * 3. Neither the names of the above-listed copyright holders nor the names
    *    of any contributors may be used to endorse or promote products derived
    *    from this software without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * GNU General Public License ("GPL") version 2 as published by the Free
    * Software Foundation.
    *
    *****************************************************************************/
   
   #include <contrib/dev/acpica/include/acpi.h>
   #include <contrib/dev/acpica/include/accommon.h>
   #include <contrib/dev/acpica/include/acnamesp.h>
   #include <contrib/dev/acpica/include/acevents.h>
   #include <contrib/dev/acpica/include/actables.h>
   
   #define _COMPONENT          ACPI_UTILITIES
           ACPI_MODULE_NAME    ("utinit")
   
   /* Local prototypes */
   
   static void AcpiUtTerminate (
       void);
   
   #if (!ACPI_REDUCED_HARDWARE)
   
   static void
   AcpiUtFreeGpeLists (
       void);
   
   #else
   
   #define AcpiUtFreeGpeLists()
   #endif /* !ACPI_REDUCED_HARDWARE */
   
   
   #if (!ACPI_REDUCED_HARDWARE)
   /******************************************************************************
    *
    * FUNCTION:    AcpiUtFreeGpeLists
    *
    * PARAMETERS:  none
    *
    * RETURN:      none
    *
    * DESCRIPTION: Free global GPE lists
    *
    ******************************************************************************/
   
   static void
   AcpiUtFreeGpeLists (
       void)
   {
       ACPI_GPE_BLOCK_INFO     *GpeBlock;
       ACPI_GPE_BLOCK_INFO     *NextGpeBlock;
       ACPI_GPE_XRUPT_INFO     *GpeXruptInfo;
       ACPI_GPE_XRUPT_INFO     *NextGpeXruptInfo;
   
   
       /* Free global GPE blocks and related info structures */
   
       GpeXruptInfo = AcpiGbl_GpeXruptListHead;
       while (GpeXruptInfo)
       {
           GpeBlock = GpeXruptInfo->GpeBlockListHead;
           while (GpeBlock)
           {
               NextGpeBlock = GpeBlock->Next;
               ACPI_FREE (GpeBlock->EventInfo);
               ACPI_FREE (GpeBlock->RegisterInfo);
               ACPI_FREE (GpeBlock);
   
               GpeBlock = NextGpeBlock;
           }
           NextGpeXruptInfo = GpeXruptInfo->Next;
           ACPI_FREE (GpeXruptInfo);
           GpeXruptInfo = NextGpeXruptInfo;
       }
   }
   #endif /* !ACPI_REDUCED_HARDWARE */
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiUtInitGlobals
    *
    * PARAMETERS:  None
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Initialize ACPICA globals. All globals that require specific
    *              initialization should be initialized here. This allows for
    *              a warm restart.
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiUtInitGlobals (
       void)
   {
       ACPI_STATUS             Status;
       UINT32                  i;
   
   
       ACPI_FUNCTION_TRACE (UtInitGlobals);
   
   
       /* Create all memory caches */
   
       Status = AcpiUtCreateCaches ();
       if (ACPI_FAILURE (Status))
       {
           return_ACPI_STATUS (Status);
       }
   
       /* Address Range lists */
   
       for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++)
       {
           AcpiGbl_AddressRangeList[i] = NULL;
       }
   
       /* Mutex locked flags */
   
       for (i = 0; i < ACPI_NUM_MUTEX; i++)
       {
           AcpiGbl_MutexInfo[i].Mutex          = NULL;
           AcpiGbl_MutexInfo[i].ThreadId       = ACPI_MUTEX_NOT_ACQUIRED;
           AcpiGbl_MutexInfo[i].UseCount       = 0;
       }
   
       for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)
       {
           AcpiGbl_OwnerIdMask[i]              = 0;
       }
   
       /* Last OwnerID is never valid */
   
       AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
   
       /* Event counters */
   
       AcpiMethodCount                     = 0;
       AcpiSciCount                        = 0;
       AcpiGpeCount                        = 0;
   
       for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
       {
           AcpiFixedEventCount[i]              = 0;
       }
   
   #if (!ACPI_REDUCED_HARDWARE)
   
       /* GPE/SCI support */
   
       AcpiGbl_AllGpesInitialized          = FALSE;
       AcpiGbl_GpeXruptListHead            = NULL;
       AcpiGbl_GpeFadtBlocks[0]            = NULL;
       AcpiGbl_GpeFadtBlocks[1]            = NULL;
       AcpiCurrentGpeCount                 = 0;
   
       AcpiGbl_GlobalEventHandler          = NULL;
       AcpiGbl_SciHandlerList              = NULL;
   
   #endif /* !ACPI_REDUCED_HARDWARE */
   
       /* Global handlers */
   
       AcpiGbl_GlobalNotify[0].Handler     = NULL;
       AcpiGbl_GlobalNotify[1].Handler     = NULL;
       AcpiGbl_ExceptionHandler            = NULL;
       AcpiGbl_InitHandler                 = NULL;
       AcpiGbl_TableHandler                = NULL;
       AcpiGbl_InterfaceHandler            = NULL;
   
       /* Global Lock support */
   
       AcpiGbl_GlobalLockSemaphore         = NULL;
       AcpiGbl_GlobalLockMutex             = NULL;
       AcpiGbl_GlobalLockAcquired          = FALSE;
       AcpiGbl_GlobalLockHandle            = 0;
       AcpiGbl_GlobalLockPresent           = FALSE;
   
       /* Miscellaneous variables */
   
       AcpiGbl_DSDT                        = NULL;
       AcpiGbl_CmSingleStep                = FALSE;
       AcpiGbl_Shutdown                    = FALSE;
       AcpiGbl_NsLookupCount               = 0;
       AcpiGbl_PsFindCount                 = 0;
       AcpiGbl_AcpiHardwarePresent         = TRUE;
       AcpiGbl_LastOwnerIdIndex            = 0;
       AcpiGbl_NextOwnerIdOffset           = 0;
       AcpiGbl_DebuggerConfiguration       = DEBUGGER_THREADING;
       AcpiGbl_OsiMutex                    = NULL;
   
       /* Hardware oriented */
   
       AcpiGbl_EventsInitialized           = FALSE;
       AcpiGbl_SystemAwakeAndRunning       = TRUE;
   
       /* Namespace */
   
       AcpiGbl_RootNode                    = NULL;
       AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
       AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
       AcpiGbl_RootNodeStruct.Type         = ACPI_TYPE_DEVICE;
       AcpiGbl_RootNodeStruct.Parent       = NULL;
       AcpiGbl_RootNodeStruct.Child        = NULL;
       AcpiGbl_RootNodeStruct.Peer         = NULL;
       AcpiGbl_RootNodeStruct.Object       = NULL;
   
   
   #ifdef ACPI_DISASSEMBLER
       AcpiGbl_ExternalList                = NULL;
       AcpiGbl_NumExternalMethods          = 0;
       AcpiGbl_ResolvedExternalMethods     = 0;
   #endif
   
   #ifdef ACPI_DEBUG_OUTPUT
       AcpiGbl_LowestStackPointer          = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);
   #endif
   
   #ifdef ACPI_DBG_TRACK_ALLOCATIONS
       AcpiGbl_DisplayFinalMemStats        = FALSE;
       AcpiGbl_DisableMemTracking          = FALSE;
   #endif
   
       return_ACPI_STATUS (AE_OK);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiUtTerminate
    *
    * PARAMETERS:  none
    *
    * RETURN:      none
    *
    * DESCRIPTION: Free global memory
    *
    ******************************************************************************/
   
   static void
   AcpiUtTerminate (
       void)
   {
       ACPI_FUNCTION_TRACE (UtTerminate);
   
       AcpiUtFreeGpeLists ();
       AcpiUtDeleteAddressLists ();
       return_VOID;
   }
   
   
   /*******************************************************************************
    *
    * FUNCTION:    AcpiUtSubsystemShutdown
    *
    * PARAMETERS:  None
    *
    * RETURN:      None
    *
    * DESCRIPTION: Shutdown the various components. Do not delete the mutex
    *              objects here, because the AML debugger may be still running.
    *
    ******************************************************************************/
   
   void
   AcpiUtSubsystemShutdown (
       void)
   {
       ACPI_FUNCTION_TRACE (UtSubsystemShutdown);
   
   
       /* Just exit if subsystem is already shutdown */
   
       if (AcpiGbl_Shutdown)
       {
           ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated"));
           return_VOID;
       }
   
       /* Subsystem appears active, go ahead and shut it down */
   
       AcpiGbl_Shutdown = TRUE;
       AcpiGbl_StartupFlags = 0;
       ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
   
   #ifndef ACPI_ASL_COMPILER
   
       /* Close the AcpiEvent Handling */
   
       AcpiEvTerminate ();
   
       /* Delete any dynamic _OSI interfaces */
   
       AcpiUtInterfaceTerminate ();
   #endif
   
       /* Close the Namespace */
   
       AcpiNsTerminate ();
   
       /* Delete the ACPI tables */
   
       AcpiTbTerminate ();
   
       /* Close the globals */
   
       AcpiUtTerminate ();
   
       /* Purge the local caches */
   
       (void) AcpiUtDeleteCaches ();
       return_VOID;
   }

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