ACPI_STATUS
LsDisplayNamespace (
    void)
{
    ACPI_STATUS             Status;


    if (!Gbl_NsOutputFlag)
    {
        return (AE_OK);
    }

    Gbl_NumNamespaceObjects = 0;

    /* File header */

    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "Contents of ACPI Namespace\n\n");
    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "Count  Depth    Name - Type\n\n");

    /* Walk entire namespace from the root */

    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
                ACPI_UINT32_MAX, FALSE, LsDoOneNamespaceObject, NULL,
                NULL, NULL);

    /* Print the full pathname for each namespace node */

    FlPrintFile (ASL_FILE_NAMESPACE_OUTPUT, "\nNamespace pathnames\n\n");

    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
                ACPI_UINT32_MAX, FALSE, LsDoOnePathname, NULL,
                NULL, NULL);

    return (Status);
}

ACPI_STATUS
AcpiEvExecuteRegMethods (
    ACPI_NAMESPACE_NODE     *Node,
    ACPI_ADR_SPACE_TYPE     SpaceId)
{
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (EvExecuteRegMethods);


    /*
     * Run all _REG methods for all Operation Regions for this space ID. This
     * is a separate walk in order to handle any interdependencies between
     * regions and _REG methods. (i.e. handlers must be installed for all
     * regions of this Space ID before we can run any _REG methods)
     */
    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX,
                ACPI_NS_WALK_UNLOCK, AcpiEvRegRun, NULL,
                &SpaceId, NULL);

    /* Special case for EC: handle "orphan" _REG methods with no region */

    if (SpaceId == ACPI_ADR_SPACE_EC)
    {
        AcpiEvOrphanEcRegMethod (Node);
    }

    return_ACPI_STATUS (Status);
}

void
AcpiNsDumpRootDevices (
    void)
{
    ACPI_HANDLE             SysBusHandle;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_NAME (NsDumpRootDevices);


    /* Only dump the table if tracing is enabled */

    if (!(ACPI_LV_TABLES & AcpiDbgLevel))
    {
        return;
    }

    Status = AcpiGetHandle (NULL, METHOD_NAME__SB_, &SysBusHandle);
    if (ACPI_FAILURE (Status))
    {
        return;
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
                       "Display of all devices in the namespace:\n"));

    Status = AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, SysBusHandle,
                                  ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
                                  AcpiNsDumpOneDevice, NULL, NULL, NULL);
}

void
AcpiEvExecuteRegMethods (
    ACPI_NAMESPACE_NODE     *Node,
    ACPI_ADR_SPACE_TYPE     SpaceId,
    UINT32                  Function)
{
    ACPI_REG_WALK_INFO      Info;


    ACPI_FUNCTION_TRACE (EvExecuteRegMethods);

    /*
     * These address spaces do not need a call to _REG, since the ACPI
     * specification defines them as: "must always be accessible". Since
     * they never change state (never become unavailable), no need to ever
     * call _REG on them. Also, a DataTable is not a "real" address space,
     * so do not call _REG. September 2018.
     */
    if ((SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY) ||
        (SpaceId == ACPI_ADR_SPACE_SYSTEM_IO) ||
        (SpaceId == ACPI_ADR_SPACE_DATA_TABLE))
    {
        return_VOID;
    }

    Info.SpaceId = SpaceId;
    Info.Function = Function;
    Info.RegRunCount = 0;

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_NAMES,
        "    Running _REG methods for SpaceId %s\n",
        AcpiUtGetRegionName (Info.SpaceId)));

    /*
     * Run all _REG methods for all Operation Regions for this space ID. This
     * is a separate walk in order to handle any interdependencies between
     * regions and _REG methods. (i.e. handlers must be installed for all
     * regions of this Space ID before we can run any _REG methods)
     */
    (void) AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX,
        ACPI_NS_WALK_UNLOCK, AcpiEvRegRun, NULL, &Info, NULL);

    /* Special case for EC: handle "orphan" _REG methods with no region */

    if (SpaceId == ACPI_ADR_SPACE_EC)
    {
        AcpiEvOrphanEcRegMethod (Node);
    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_NAMES,
        "    Executed %u _REG methods for SpaceId %s\n",
        Info.RegRunCount, AcpiUtGetRegionName (Info.SpaceId)));

    return_VOID;
}

void
AcpiNsDumpObjectPaths (
    ACPI_OBJECT_TYPE        Type,
    UINT8                   DisplayType,
    UINT32                  MaxDepth,
    ACPI_OWNER_ID           OwnerId,
    ACPI_HANDLE             StartHandle)
{
    ACPI_STATUS             Status;
    UINT32                  MaxLevel = 0;


    ACPI_FUNCTION_ENTRY ();


    /*
     * Just lock the entire namespace for the duration of the dump.
     * We don't want any changes to the namespace during this time,
     * especially the temporary nodes since we are going to display
     * them also.
     */
    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Could not acquire namespace mutex\n");
        return;
    }

    /* Get the max depth of the namespace tree, for formatting later */

    (void) AcpiNsWalkNamespace (Type, StartHandle, MaxDepth,
        ACPI_NS_WALK_NO_UNLOCK | ACPI_NS_WALK_TEMP_NODES,
        AcpiNsGetMaxDepth, NULL, (void *) &MaxLevel, NULL);

    /* Now dump the entire namespace */

    (void) AcpiNsWalkNamespace (Type, StartHandle, MaxDepth,
        ACPI_NS_WALK_NO_UNLOCK | ACPI_NS_WALK_TEMP_NODES,
        AcpiNsDumpOneObjectPath, NULL, (void *) &MaxLevel, NULL);

    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
}

void
LkFindUnreferencedObjects (
    void)
{

    /* Walk entire namespace from the supplied root */

    (void) AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
                ACPI_UINT32_MAX, FALSE, LkIsObjectUsed, NULL,
                NULL, NULL);
}

ACPI_STATUS
AcpiGetDevices (
    char                    *HID,
    ACPI_WALK_CALLBACK      UserFunction,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_STATUS             Status;
    ACPI_GET_DEVICES_INFO   Info;


    ACPI_FUNCTION_TRACE (AcpiGetDevices);


    /* Parameter validation */

    if (!UserFunction)
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /*
     * We're going to call their callback from OUR callback, so we need
     * to know what it is, and their context parameter.
     */
    Info.Hid = HID;
    Info.Context = Context;
    Info.UserFunction = UserFunction;

    /*
     * Lock the namespace around the walk.
     * The namespace will be unlocked/locked around each call
     * to the user function - since this function
     * must be allowed to make Acpi calls itself.
     */
    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Status = AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
        ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
        AcpiNsGetDeviceCallback, NULL, &Info, ReturnValue);

    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
    return_ACPI_STATUS (Status);
}

static void
MpEmitDeviceTree (
    void)
{

    FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n\nACPI Device Tree\n");
    FlPrintFile (ASL_FILE_MAP_OUTPUT,     "----------------\n\n");

    FlPrintFile (ASL_FILE_MAP_OUTPUT, "Device Pathname                   "
        "_HID      Description\n\n");

    /* Walk the namespace from the root */

    (void) AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
            ACPI_UINT32_MAX, FALSE, MpEmitOneDevice, NULL, NULL, NULL);
}

static ACPI_STATUS
acpi_dock_insert_child(ACPI_HANDLE handle, UINT32 level, void *context,
    void **status)
{
	device_t	dock_dev, dev;
	ACPI_HANDLE	dock_handle;

	dock_dev = (device_t)context;
	dock_handle = acpi_get_handle(dock_dev);

	if (!acpi_dock_is_ejd_device(dock_handle, handle))
		goto out;

	ACPI_VPRINT(dock_dev, acpi_device_get_parent_softc(dock_dev),
		    "inserting device for %s\n", acpi_name(handle));

#if 0
	/*
	 * If the system boot up w/o Docking, the devices under the dock
	 * still un-initialized, also control methods such as _INI, _STA
	 * are not executed.
	 * Normal devices are initialized at booting by calling
	 * AcpiInitializeObjects(), however the devices under the dock
	 * need to be initialized here on the scheme of ACPICA.
	 */
	ACPI_INIT_WALK_INFO	Info;

	AcpiNsWalkNamespace(ACPI_TYPE_ANY, handle,
	    100, TRUE, AcpiNsInitOneDevice, &Info, NULL);
#endif

	dev = acpi_get_device(handle);
	if (dev == NULL) {
		device_printf(dock_dev, "error: %s has no associated device\n",
		    acpi_name(handle));
		goto out;
	}

	AcpiOsExecute(OSL_NOTIFY_HANDLER, acpi_dock_attach_later, dev);

out:
	return (AE_OK);
}

ACPI_STATUS
AcpiWalkNamespace (
    ACPI_OBJECT_TYPE        Type,
    ACPI_HANDLE             StartObject,
    UINT32                  MaxDepth,
    ACPI_WALK_CALLBACK      UserFunction,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (AcpiWalkNamespace);


    /* Parameter validation */

    if ((Type > ACPI_TYPE_LOCAL_MAX) ||
        (!MaxDepth)                  ||
        (!UserFunction))
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /*
     * Lock the namespace around the walk.
     * The namespace will be unlocked/locked around each call
     * to the user function - since this function
     * must be allowed to make Acpi calls itself.
     */
    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Status = AcpiNsWalkNamespace (Type, StartObject, MaxDepth,
                    ACPI_NS_WALK_UNLOCK,
                    UserFunction, Context, ReturnValue);

    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
    return_ACPI_STATUS (Status);
}

void
AcpiNsDumpObjects (
    ACPI_OBJECT_TYPE8       Type,
    UINT32                  MaxDepth,
    UINT32                  OwnerId,
    ACPI_HANDLE             StartHandle)
{
    ACPI_WALK_INFO          Info;


    FUNCTION_ENTRY ();


    Info.DebugLevel = ACPI_LV_TABLES;
    Info.OwnerId = OwnerId;

    AcpiNsWalkNamespace (Type, StartHandle, MaxDepth, NS_WALK_NO_UNLOCK, AcpiNsDumpOneObject,
                        (void *) &Info, NULL);
}

static void
AcpiDbCountNamespaceObjects (
    void)
{
    UINT32                  i;


    AcpiGbl_NumNodes = 0;
    AcpiGbl_NumObjects = 0;

    AcpiGbl_ObjTypeCountMisc = 0;
    for (i = 0; i < (ACPI_TYPE_NS_NODE_MAX -1); i++)
    {
        AcpiGbl_ObjTypeCount [i] = 0;
        AcpiGbl_NodeTypeCount [i] = 0;
    }

    (void) AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
                ACPI_UINT32_MAX, FALSE, AcpiDbClassifyOneObject, NULL, NULL, NULL);
}

void
AcpiEvExecuteRegMethods (
    ACPI_NAMESPACE_NODE     *Node,
    ACPI_ADR_SPACE_TYPE     SpaceId,
    UINT32                  Function)
{
    ACPI_REG_WALK_INFO      Info;


    ACPI_FUNCTION_TRACE (EvExecuteRegMethods);

    Info.SpaceId = SpaceId;
    Info.Function = Function;
    Info.RegRunCount = 0;

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_NAMES,
        "    Running _REG methods for SpaceId %s\n",
        AcpiUtGetRegionName (Info.SpaceId)));

    /*
     * Run all _REG methods for all Operation Regions for this space ID. This
     * is a separate walk in order to handle any interdependencies between
     * regions and _REG methods. (i.e. handlers must be installed for all
     * regions of this Space ID before we can run any _REG methods)
     */
    (void) AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX,
        ACPI_NS_WALK_UNLOCK, AcpiEvRegRun, NULL, &Info, NULL);

    /* Special case for EC: handle "orphan" _REG methods with no region */

    if (SpaceId == ACPI_ADR_SPACE_EC)
    {
        AcpiEvOrphanEcRegMethod (Node);
    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_NAMES,
        "    Executed %u _REG methods for SpaceId %s\n",
        Info.RegRunCount, AcpiUtGetRegionName (Info.SpaceId)));

    return_VOID;
}

static BOOLEAN
XfObjectExists (
    char                    *Name)
{
    ACPI_STATUS             Status;


    /* Walk entire namespace from the supplied root */

    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
        ACPI_UINT32_MAX, FALSE, XfCompareOneNamespaceObject, NULL,
        Name, NULL);
    if (Status == AE_CTRL_TRUE)
    {
        /* At least one instance of the name was found */

        return (TRUE);
    }

    return (FALSE);
}

void
AcpiNsDumpObjects (
    ACPI_OBJECT_TYPE        Type,
    UINT8                   DisplayType,
    UINT32                  MaxDepth,
    ACPI_OWNER_ID           OwnerId,
    ACPI_HANDLE             StartHandle)
{
    ACPI_WALK_INFO          Info;
    ACPI_STATUS             Status;


    ACPI_FUNCTION_ENTRY ();


    /*
     * Just lock the entire namespace for the duration of the dump.
     * We don't want any changes to the namespace during this time,
     * especially the temporary nodes since we are going to display
     * them also.
     */
    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        AcpiOsPrintf ("Could not acquire namespace mutex\n");
        return;
    }

    Info.Count = 0;
    Info.DebugLevel = ACPI_LV_TABLES;
    Info.OwnerId = OwnerId;
    Info.DisplayType = DisplayType;

    (void) AcpiNsWalkNamespace (Type, StartHandle, MaxDepth,
        ACPI_NS_WALK_NO_UNLOCK | ACPI_NS_WALK_TEMP_NODES,
        AcpiNsDumpOneObject, NULL, (void *) &Info, NULL);

    AcpiOsPrintf ("\nNamespace node count: %u\n\n", Info.Count);
    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
}

void
AcpiNsDumpObjects (
    ACPI_OBJECT_TYPE        Type,
    UINT8                   DisplayType,
    UINT32                  MaxDepth,
    ACPI_OWNER_ID           OwnerId,
    ACPI_HANDLE             StartHandle)
{
    ACPI_WALK_INFO          Info;


    ACPI_FUNCTION_ENTRY ();


    Info.DebugLevel = ACPI_LV_TABLES;
    Info.OwnerId = OwnerId;
    Info.DisplayType = DisplayType;

    (void) AcpiNsWalkNamespace (Type, StartHandle, MaxDepth,
                ACPI_NS_WALK_NO_UNLOCK | ACPI_NS_WALK_TEMP_NODES,
                AcpiNsDumpOneObject, (void *) &Info, NULL);
}

void
AcpiNsDumpRootDevices (void)
{
    ACPI_HANDLE             SysBusHandle;


    PROC_NAME ("NsDumpRootDevices");


    /* Only dump the table if tracing is enabled */

    if (!(ACPI_LV_TABLES & AcpiDbgLevel))
    {
        return;
    }

    AcpiGetHandle (0, NS_SYSTEM_BUS, &SysBusHandle);

    ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Display of all devices in the namespace:\n"));
    AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, SysBusHandle, ACPI_UINT32_MAX, NS_WALK_NO_UNLOCK,
                        AcpiNsDumpOneDevice, NULL, NULL);
}

ACPI_STATUS
AcpiWalkNamespace (
    ACPI_OBJECT_TYPE        Type,
    ACPI_HANDLE             StartObject,
    UINT32                  MaxDepth,
    ACPI_WALK_CALLBACK      DescendingCallback,
    ACPI_WALK_CALLBACK      AscendingCallback,
    void                    *Context,
    void                    **ReturnValue)
{
    ACPI_STATUS             Status;


    ACPI_FUNCTION_TRACE (AcpiWalkNamespace);


    /* Parameter validation */

    if ((Type > ACPI_TYPE_LOCAL_MAX) ||
        (!MaxDepth)                  ||
        (!DescendingCallback && !AscendingCallback))
    {
        return_ACPI_STATUS (AE_BAD_PARAMETER);
    }

    /*
     * Need to acquire the namespace reader lock to prevent interference
     * with any concurrent table unloads (which causes the deletion of
     * namespace objects). We cannot allow the deletion of a namespace node
     * while the user function is using it. The exception to this are the
     * nodes created and deleted during control method execution -- these
     * nodes are marked as temporary nodes and are ignored by the namespace
     * walk. Thus, control methods can be executed while holding the
     * namespace deletion lock (and the user function can execute control
     * methods.)
     */
    Status = AcpiUtAcquireReadLock (&AcpiGbl_NamespaceRwLock);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /*
     * Lock the namespace around the walk. The namespace will be
     * unlocked/locked around each call to the user function - since the user
     * function must be allowed to make ACPICA calls itself (for example, it
     * will typically execute control methods during device enumeration.)
     */
    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE (Status))
    {
        goto UnlockAndExit;
    }

    /* Now we can validate the starting node */

    if (!AcpiNsValidateHandle (StartObject))
    {
        Status = AE_BAD_PARAMETER;
        goto UnlockAndExit2;
    }

    Status = AcpiNsWalkNamespace (Type, StartObject, MaxDepth,
        ACPI_NS_WALK_UNLOCK, DescendingCallback,
        AscendingCallback, Context, ReturnValue);

UnlockAndExit2:
    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);

UnlockAndExit:
    (void) AcpiUtReleaseReadLock (&AcpiGbl_NamespaceRwLock);
    return_ACPI_STATUS (Status);
}

ACPI_STATUS
AcpiEvCreateGpeBlock (
    ACPI_NAMESPACE_NODE     *GpeDevice,
    UINT64                  Address,
    UINT8                   SpaceId,
    UINT32                  RegisterCount,
    UINT16                  GpeBlockBaseNumber,
    UINT32                  InterruptNumber,
    ACPI_GPE_BLOCK_INFO     **ReturnGpeBlock)
{
    ACPI_STATUS             Status;
    ACPI_GPE_BLOCK_INFO     *GpeBlock;
    ACPI_GPE_WALK_INFO      WalkInfo;


    ACPI_FUNCTION_TRACE (EvCreateGpeBlock);


    if (!RegisterCount)
    {
        return_ACPI_STATUS (AE_OK);
    }

    /* Allocate a new GPE block */

    GpeBlock = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_BLOCK_INFO));
    if (!GpeBlock)
    {
        return_ACPI_STATUS (AE_NO_MEMORY);
    }

    /* Initialize the new GPE block */

    GpeBlock->Address = Address;
    GpeBlock->SpaceId = SpaceId;
    GpeBlock->Node = GpeDevice;
    GpeBlock->GpeCount = (UINT16) (RegisterCount * ACPI_GPE_REGISTER_WIDTH);
    GpeBlock->Initialized = FALSE;
    GpeBlock->RegisterCount = RegisterCount;
    GpeBlock->BlockBaseNumber = GpeBlockBaseNumber;

    /*
     * Create the RegisterInfo and EventInfo sub-structures
     * Note: disables and clears all GPEs in the block
     */
    Status = AcpiEvCreateGpeInfoBlocks (GpeBlock);
    if (ACPI_FAILURE (Status))
    {
        ACPI_FREE (GpeBlock);
        return_ACPI_STATUS (Status);
    }

    /* Install the new block in the global lists */

    Status = AcpiEvInstallGpeBlock (GpeBlock, InterruptNumber);
    if (ACPI_FAILURE (Status))
    {
        ACPI_FREE (GpeBlock->RegisterInfo);
        ACPI_FREE (GpeBlock->EventInfo);
        ACPI_FREE (GpeBlock);
        return_ACPI_STATUS (Status);
    }

    AcpiGbl_AllGpesInitialized = FALSE;

    /* Find all GPE methods (_Lxx or_Exx) for this block */

    WalkInfo.GpeBlock = GpeBlock;
    WalkInfo.GpeDevice = GpeDevice;
    WalkInfo.ExecuteByOwnerId = FALSE;

    Status = AcpiNsWalkNamespace (ACPI_TYPE_METHOD, GpeDevice,
                ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
                AcpiEvMatchGpeMethod, NULL, &WalkInfo, NULL);

    /* Return the new block */

    if (ReturnGpeBlock)
    {
        (*ReturnGpeBlock) = GpeBlock;
    }

    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
        "    Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X%s\n",
        (UINT32) GpeBlock->BlockBaseNumber,
        (UINT32) (GpeBlock->BlockBaseNumber + (GpeBlock->GpeCount - 1)),
        GpeDevice->Name.Ascii, GpeBlock->RegisterCount, InterruptNumber,
        InterruptNumber == AcpiGbl_FADT.SciInterrupt ? " (SCI)" : ""));

    /* Update global count of currently available GPEs */

    AcpiCurrentGpeCount += GpeBlock->GpeCount;
    return_ACPI_STATUS (AE_OK);
}

ACPI_STATUS
AcpiNsInitializeDevices (
    UINT32                  Flags)
{
    ACPI_STATUS             Status = AE_OK;
    ACPI_DEVICE_WALK_INFO   Info;
    ACPI_HANDLE             Handle;


    ACPI_FUNCTION_TRACE (NsInitializeDevices);


    if (!(Flags & ACPI_NO_DEVICE_INIT))
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
            "[Init] Initializing ACPI Devices\n"));

        /* Init counters */

        Info.DeviceCount = 0;
        Info.Num_STA = 0;
        Info.Num_INI = 0;

        ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
            "Initializing Device/Processor/Thermal objects "
            "and executing _INI/_STA methods:\n"));

        /* Tree analysis: find all subtrees that contain _INI methods */

        Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
            ACPI_UINT32_MAX, FALSE, AcpiNsFindIniMethods, NULL, &Info, NULL);
        if (ACPI_FAILURE (Status))
        {
            goto ErrorExit;
        }

        /* Allocate the evaluation information block */

        Info.EvaluateInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
        if (!Info.EvaluateInfo)
        {
            Status = AE_NO_MEMORY;
            goto ErrorExit;
        }

        /*
         * Execute the "global" _INI method that may appear at the root.
         * This support is provided for Windows compatibility (Vista+) and
         * is not part of the ACPI specification.
         */
        Info.EvaluateInfo->PrefixNode = AcpiGbl_RootNode;
        Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI;
        Info.EvaluateInfo->Parameters = NULL;
        Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE;

        Status = AcpiNsEvaluate (Info.EvaluateInfo);
        if (ACPI_SUCCESS (Status))
        {
            Info.Num_INI++;
        }

        /*
         * Execute \_SB._INI.
         * There appears to be a strict order requirement for \_SB._INI,
         * which should be evaluated before any _REG evaluations.
         */
        Status = AcpiGetHandle (NULL, "\\_SB", &Handle);
        if (ACPI_SUCCESS (Status))
        {
            memset (Info.EvaluateInfo, 0, sizeof (ACPI_EVALUATE_INFO));
            Info.EvaluateInfo->PrefixNode = Handle;
            Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI;
            Info.EvaluateInfo->Parameters = NULL;
            Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE;

            Status = AcpiNsEvaluate (Info.EvaluateInfo);
            if (ACPI_SUCCESS (Status))
            {
                Info.Num_INI++;
            }
        }
    }

    /*
     * Run all _REG methods
     *
     * Note: Any objects accessed by the _REG methods will be automatically
     * initialized, even if they contain executable AML (see the call to
     * AcpiNsInitializeObjects below).
     *
     * Note: According to the ACPI specification, we actually needn't execute
     * _REG for SystemMemory/SystemIo operation regions, but for PCI_Config
     * operation regions, it is required to evaluate _REG for those on a PCI
     * root bus that doesn't contain _BBN object. So this code is kept here
     * in order not to break things.
     */
    if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
            "[Init] Executing _REG OpRegion methods\n"));
//.........这里部分代码省略.........