Merge ACPICA 20130117.

15 files changed, 659 insertions, 602 deletions

diff --git a/sys/contrib/dev/acpica/components/events/evevent.c b/sys/contrib/dev/acpica/components/events/evevent.c
index 5706f8f..adad8c8 100644
--- a/sys/contrib/dev/acpica/components/events/evevent.c
+++ b/sys/contrib/dev/acpica/components/events/evevent.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evglock.c b/sys/contrib/dev/acpica/components/events/evglock.c
index 894e132..4cec447 100644
--- a/sys/contrib/dev/acpica/components/events/evglock.c
+++ b/sys/contrib/dev/acpica/components/events/evglock.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evgpe.c b/sys/contrib/dev/acpica/components/events/evgpe.c
index eb96d72..75ad956 100644
--- a/sys/contrib/dev/acpica/components/events/evgpe.c
+++ b/sys/contrib/dev/acpica/components/events/evgpe.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -770,7 +770,7 @@ AcpiEvGpeDispatch (
         {
             ACPI_EXCEPTION ((AE_INFO, Status,
                 "Unable to clear GPE%02X", GpeNumber));
-            return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
+            return_VALUE (ACPI_INTERRUPT_NOT_HANDLED);
         }
     }
 
@@ -788,7 +788,7 @@ AcpiEvGpeDispatch (
     {
         ACPI_EXCEPTION ((AE_INFO, Status,
             "Unable to disable GPE%02X", GpeNumber));
-        return_UINT32 (ACPI_INTERRUPT_NOT_HANDLED);
+        return_VALUE (ACPI_INTERRUPT_NOT_HANDLED);
     }
 
     /*
@@ -846,7 +846,7 @@ AcpiEvGpeDispatch (
         break;
     }
 
-    return_UINT32 (ACPI_INTERRUPT_HANDLED);
+    return_VALUE (ACPI_INTERRUPT_HANDLED);
 }
 
 #endif /* !ACPI_REDUCED_HARDWARE */
diff --git a/sys/contrib/dev/acpica/components/events/evgpeblk.c b/sys/contrib/dev/acpica/components/events/evgpeblk.c
index 6a1c04a..f223b1a 100644
--- a/sys/contrib/dev/acpica/components/events/evgpeblk.c
+++ b/sys/contrib/dev/acpica/components/events/evgpeblk.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -443,8 +443,8 @@ AcpiEvCreateGpeBlock (
         (*ReturnGpeBlock) = GpeBlock;
     }
 
-    ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
-        "GPE %02X to %02X [%4.4s] %u regs on int 0x%X\n",
+    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
+        "    Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X\n",
         (UINT32) GpeBlock->BlockBaseNumber,
         (UINT32) (GpeBlock->BlockBaseNumber + (GpeBlock->GpeCount - 1)),
         GpeDevice->Name.Ascii, GpeBlock->RegisterCount,
@@ -539,8 +539,10 @@ AcpiEvInitializeGpeBlock (
 
     if (GpeEnabledCount)
     {
-        ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
-            "Enabled %u GPEs in this block\n", GpeEnabledCount));
+        ACPI_INFO ((AE_INFO,
+            "Enabled %u GPEs in block %02X to %02X", GpeEnabledCount,
+            (UINT32) GpeBlock->BlockBaseNumber,
+            (UINT32) (GpeBlock->BlockBaseNumber + (GpeBlock->GpeCount - 1))));
     }
 
     GpeBlock->Initialized = TRUE;
diff --git a/sys/contrib/dev/acpica/components/events/evgpeinit.c b/sys/contrib/dev/acpica/components/events/evgpeinit.c
index 9266d60..9e8630d 100644
--- a/sys/contrib/dev/acpica/components/events/evgpeinit.c
+++ b/sys/contrib/dev/acpica/components/events/evgpeinit.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -94,6 +94,9 @@ AcpiEvGpeInitialize (
     ACPI_FUNCTION_TRACE (EvGpeInitialize);
 
 
+    ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
+        "Initializing General Purpose Events (GPEs):\n"));
+
     Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
     if (ACPI_FAILURE (Status))
     {
diff --git a/sys/contrib/dev/acpica/components/events/evgpeutil.c b/sys/contrib/dev/acpica/components/events/evgpeutil.c
index 7f7bb3c..1841f9d 100644
--- a/sys/contrib/dev/acpica/components/events/evgpeutil.c
+++ b/sys/contrib/dev/acpica/components/events/evgpeutil.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evhandler.c b/sys/contrib/dev/acpica/components/events/evhandler.c
new file mode 100644
index 0000000..f32ba65
--- /dev/null
+++ b/sys/contrib/dev/acpica/components/events/evhandler.c
@@ -0,0 +1,578 @@
+/******************************************************************************
+ *
+ * Module Name: evhandler - Support for Address Space handlers
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2013, Intel Corp.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * 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 MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ */
+
+
+#define __EVHANDLER_C__
+
+#include <contrib/dev/acpica/include/acpi.h>
+#include <contrib/dev/acpica/include/accommon.h>
+#include <contrib/dev/acpica/include/acevents.h>
+#include <contrib/dev/acpica/include/acnamesp.h>
+#include <contrib/dev/acpica/include/acinterp.h>
+
+#define _COMPONENT          ACPI_EVENTS
+        ACPI_MODULE_NAME    ("evhandler")
+
+
+/* Local prototypes */
+
+static ACPI_STATUS
+AcpiEvInstallHandler (
+    ACPI_HANDLE             ObjHandle,
+    UINT32                  Level,
+    void                    *Context,
+    void                    **ReturnValue);
+
+/* These are the address spaces that will get default handlers */
+
+UINT8        AcpiGbl_DefaultAddressSpaces[ACPI_NUM_DEFAULT_SPACES] =
+{
+    ACPI_ADR_SPACE_SYSTEM_MEMORY,
+    ACPI_ADR_SPACE_SYSTEM_IO,
+    ACPI_ADR_SPACE_PCI_CONFIG,
+    ACPI_ADR_SPACE_DATA_TABLE
+};
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiEvInstallRegionHandlers
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Installs the core subsystem default address space handlers.
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvInstallRegionHandlers (
+    void)
+{
+    ACPI_STATUS             Status;
+    UINT32                  i;
+
+
+    ACPI_FUNCTION_TRACE (EvInstallRegionHandlers);
+
+
+    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
+    if (ACPI_FAILURE (Status))
+    {
+        return_ACPI_STATUS (Status);
+    }
+
+    /*
+     * All address spaces (PCI Config, EC, SMBus) are scope dependent and
+     * registration must occur for a specific device.
+     *
+     * In the case of the system memory and IO address spaces there is
+     * currently no device associated with the address space. For these we
+     * use the root.
+     *
+     * We install the default PCI config space handler at the root so that
+     * this space is immediately available even though the we have not
+     * enumerated all the PCI Root Buses yet. This is to conform to the ACPI
+     * specification which states that the PCI config space must be always
+     * available -- even though we are nowhere near ready to find the PCI root
+     * buses at this point.
+     *
+     * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
+     * has already been installed (via AcpiInstallAddressSpaceHandler).
+     * Similar for AE_SAME_HANDLER.
+     */
+    for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++)
+    {
+        Status = AcpiEvInstallSpaceHandler (AcpiGbl_RootNode,
+                    AcpiGbl_DefaultAddressSpaces[i],
+                    ACPI_DEFAULT_HANDLER, NULL, NULL);
+        switch (Status)
+        {
+        case AE_OK:
+        case AE_SAME_HANDLER:
+        case AE_ALREADY_EXISTS:
+
+            /* These exceptions are all OK */
+
+            Status = AE_OK;
+            break;
+
+        default:
+
+            goto UnlockAndExit;
+        }
+    }
+
+UnlockAndExit:
+    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
+    return_ACPI_STATUS (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiEvHasDefaultHandler
+ *
+ * PARAMETERS:  Node                - Namespace node for the device
+ *              SpaceId             - The address space ID
+ *
+ * RETURN:      TRUE if default handler is installed, FALSE otherwise
+ *
+ * DESCRIPTION: Check if the default handler is installed for the requested
+ *              space ID.
+ *
+ ******************************************************************************/
+
+BOOLEAN
+AcpiEvHasDefaultHandler (
+    ACPI_NAMESPACE_NODE     *Node,
+    ACPI_ADR_SPACE_TYPE     SpaceId)
+{
+    ACPI_OPERAND_OBJECT     *ObjDesc;
+    ACPI_OPERAND_OBJECT     *HandlerObj;
+
+
+    /* Must have an existing internal object */
+
+    ObjDesc = AcpiNsGetAttachedObject (Node);
+    if (ObjDesc)
+    {
+        HandlerObj = ObjDesc->Device.Handler;
+
+        /* Walk the linked list of handlers for this object */
+
+        while (HandlerObj)
+        {
+            if (HandlerObj->AddressSpace.SpaceId == SpaceId)
+            {
+                if (HandlerObj->AddressSpace.HandlerFlags &
+                        ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)
+                {
+                    return (TRUE);
+                }
+            }
+
+            HandlerObj = HandlerObj->AddressSpace.Next;
+        }
+    }
+
+    return (FALSE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiEvInstallHandler
+ *
+ * PARAMETERS:  WalkNamespace callback
+ *
+ * DESCRIPTION: This routine installs an address handler into objects that are
+ *              of type Region or Device.
+ *
+ *              If the Object is a Device, and the device has a handler of
+ *              the same type then the search is terminated in that branch.
+ *
+ *              This is because the existing handler is closer in proximity
+ *              to any more regions than the one we are trying to install.
+ *
+ ******************************************************************************/
+
+static ACPI_STATUS
+AcpiEvInstallHandler (
+    ACPI_HANDLE             ObjHandle,
+    UINT32                  Level,
+    void                    *Context,
+    void                    **ReturnValue)
+{
+    ACPI_OPERAND_OBJECT     *HandlerObj;
+    ACPI_OPERAND_OBJECT     *NextHandlerObj;
+    ACPI_OPERAND_OBJECT     *ObjDesc;
+    ACPI_NAMESPACE_NODE     *Node;
+    ACPI_STATUS             Status;
+
+
+    ACPI_FUNCTION_NAME (EvInstallHandler);
+
+
+    HandlerObj = (ACPI_OPERAND_OBJECT  *) Context;
+
+    /* Parameter validation */
+
+    if (!HandlerObj)
+    {
+        return (AE_OK);
+    }
+
+    /* Convert and validate the device handle */
+
+    Node = AcpiNsValidateHandle (ObjHandle);
+    if (!Node)
+    {
+        return (AE_BAD_PARAMETER);
+    }
+
+    /*
+     * We only care about regions and objects that are allowed to have
+     * address space handlers
+     */
+    if ((Node->Type != ACPI_TYPE_DEVICE) &&
+        (Node->Type != ACPI_TYPE_REGION) &&
+        (Node != AcpiGbl_RootNode))
+    {
+        return (AE_OK);
+    }
+
+    /* Check for an existing internal object */
+
+    ObjDesc = AcpiNsGetAttachedObject (Node);
+    if (!ObjDesc)
+    {
+        /* No object, just exit */
+
+        return (AE_OK);
+    }
+
+    /* Devices are handled different than regions */
+
+    if (ObjDesc->Common.Type == ACPI_TYPE_DEVICE)
+    {
+        /* Check if this Device already has a handler for this address space */
+
+        NextHandlerObj = ObjDesc->Device.Handler;
+        while (NextHandlerObj)
+        {
+            /* Found a handler, is it for the same address space? */
+
+            if (NextHandlerObj->AddressSpace.SpaceId ==
+                    HandlerObj->AddressSpace.SpaceId)
+            {
+                ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
+                    "Found handler for region [%s] in device %p(%p) "
+                    "handler %p\n",
+                    AcpiUtGetRegionName (HandlerObj->AddressSpace.SpaceId),
+                    ObjDesc, NextHandlerObj, HandlerObj));
+
+                /*
+                 * Since the object we found it on was a device, then it
+                 * means that someone has already installed a handler for
+                 * the branch of the namespace from this device on. Just
+                 * bail out telling the walk routine to not traverse this
+                 * branch. This preserves the scoping rule for handlers.
+                 */
+                return (AE_CTRL_DEPTH);
+            }
+
+            /* Walk the linked list of handlers attached to this device */
+
+            NextHandlerObj = NextHandlerObj->AddressSpace.Next;
+        }
+
+        /*
+         * As long as the device didn't have a handler for this space we
+         * don't care about it. We just ignore it and proceed.
+         */
+        return (AE_OK);
+    }
+
+    /* Object is a Region */
+
+    if (ObjDesc->Region.SpaceId != HandlerObj->AddressSpace.SpaceId)
+    {
+        /* This region is for a different address space, just ignore it */
+
+        return (AE_OK);
+    }
+
+    /*
+     * Now we have a region and it is for the handler's address space type.
+     *
+     * First disconnect region for any previous handler (if any)
+     */
+    AcpiEvDetachRegion (ObjDesc, FALSE);
+
+    /* Connect the region to the new handler */
+
+    Status = AcpiEvAttachRegion (HandlerObj, ObjDesc, FALSE);
+    return (Status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    AcpiEvInstallSpaceHandler
+ *
+ * PARAMETERS:  Node            - Namespace node for the device
+ *              SpaceId         - The address space ID
+ *              Handler         - Address of the handler
+ *              Setup           - Address of the setup function
+ *              Context         - Value passed to the handler on each access
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install a handler for all OpRegions of a given SpaceId.
+ *              Assumes namespace is locked
+ *
+ ******************************************************************************/
+
+ACPI_STATUS
+AcpiEvInstallSpaceHandler (
+    ACPI_NAMESPACE_NODE     *Node,
+    ACPI_ADR_SPACE_TYPE     SpaceId,
+    ACPI_ADR_SPACE_HANDLER  Handler,
+    ACPI_ADR_SPACE_SETUP    Setup,
+    void                    *Context)
+{
+    ACPI_OPERAND_OBJECT     *ObjDesc;
+    ACPI_OPERAND_OBJECT     *HandlerObj;
+    ACPI_STATUS             Status;
+    ACPI_OBJECT_TYPE        Type;
+    UINT8                  Flags = 0;
+
+
+    ACPI_FUNCTION_TRACE (EvInstallSpaceHandler);
+
+
+    /*
+     * This registration is valid for only the types below and the root. This
+     * is where the default handlers get placed.
+     */
+    if ((Node->Type != ACPI_TYPE_DEVICE)     &&
+        (Node->Type != ACPI_TYPE_PROCESSOR)  &&
+        (Node->Type != ACPI_TYPE_THERMAL)    &&
+        (Node != AcpiGbl_RootNode))
+    {
+        Status = AE_BAD_PARAMETER;
+        goto UnlockAndExit;
+    }
+
+    if (Handler == ACPI_DEFAULT_HANDLER)
+    {
+        Flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
+
+        switch (SpaceId)
+        {
+        case ACPI_ADR_SPACE_SYSTEM_MEMORY:
+            Handler = AcpiExSystemMemorySpaceHandler;
+            Setup   = AcpiEvSystemMemoryRegionSetup;
+            break;
+
+        case ACPI_ADR_SPACE_SYSTEM_IO:
+            Handler = AcpiExSystemIoSpaceHandler;
+            Setup   = AcpiEvIoSpaceRegionSetup;
+            break;
+
+        case ACPI_ADR_SPACE_PCI_CONFIG:
+            Handler = AcpiExPciConfigSpaceHandler;
+            Setup   = AcpiEvPciConfigRegionSetup;
+            break;
+
+        case ACPI_ADR_SPACE_CMOS:
+            Handler = AcpiExCmosSpaceHandler;
+            Setup   = AcpiEvCmosRegionSetup;
+            break;
+
+        case ACPI_ADR_SPACE_PCI_BAR_TARGET:
+            Handler = AcpiExPciBarSpaceHandler;
+            Setup   = AcpiEvPciBarRegionSetup;
+            break;
+
+        case ACPI_ADR_SPACE_DATA_TABLE:
+            Handler = AcpiExDataTableSpaceHandler;
+            Setup   = NULL;
+            break;
+
+        default:
+            Status = AE_BAD_PARAMETER;
+            goto UnlockAndExit;
+        }
+    }
+
+    /* If the caller hasn't specified a setup routine, use the default */
+
+    if (!Setup)
+    {
+        Setup = AcpiEvDefaultRegionSetup;
+    }
+
+    /* Check for an existing internal object */
+
+    ObjDesc = AcpiNsGetAttachedObject (Node);
+    if (ObjDesc)
+    {
+        /*
+         * The attached device object already exists. Make sure the handler
+         * is not already installed.
+         */
+        HandlerObj = ObjDesc->Device.Handler;
+
+        /* Walk the handler list for this device */
+
+        while (HandlerObj)
+        {
+            /* Same SpaceId indicates a handler already installed */
+
+            if (HandlerObj->AddressSpace.SpaceId == SpaceId)
+            {
+                if (HandlerObj->AddressSpace.Handler == Handler)
+                {
+                    /*
+                     * It is (relatively) OK to attempt to install the SAME
+                     * handler twice. This can easily happen with the
+                     * PCI_Config space.
+                     */
+                    Status = AE_SAME_HANDLER;
+                    goto UnlockAndExit;
+                }
+                else
+                {
+                    /* A handler is already installed */
+
+                    Status = AE_ALREADY_EXISTS;
+                }
+                goto UnlockAndExit;
+            }
+
+            /* Walk the linked list of handlers */
+
+            HandlerObj = HandlerObj->AddressSpace.Next;
+        }
+    }
+    else
+    {
+        ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
+            "Creating object on Device %p while installing handler\n", Node));
+
+        /* ObjDesc does not exist, create one */
+
+        if (Node->Type == ACPI_TYPE_ANY)
+        {
+            Type = ACPI_TYPE_DEVICE;
+        }
+        else
+        {
+            Type = Node->Type;
+        }
+
+        ObjDesc = AcpiUtCreateInternalObject (Type);
+        if (!ObjDesc)
+        {
+            Status = AE_NO_MEMORY;
+            goto UnlockAndExit;
+        }
+
+        /* Init new descriptor */
+
+        ObjDesc->Common.Type = (UINT8) Type;
+
+        /* Attach the new object to the Node */
+
+        Status = AcpiNsAttachObject (Node, ObjDesc, Type);
+
+        /* Remove local reference to the object */
+
+        AcpiUtRemoveReference (ObjDesc);
+
+        if (ACPI_FAILURE (Status))
+        {
+            goto UnlockAndExit;
+        }
+    }
+
+    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
+        "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
+        AcpiUtGetRegionName (SpaceId), SpaceId,
+        AcpiUtGetNodeName (Node), Node, ObjDesc));
+
+    /*
+     * Install the handler
+     *
+     * At this point there is no existing handler. Just allocate the object
+     * for the handler and link it into the list.
+     */
+    HandlerObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
+    if (!HandlerObj)
+    {
+        Status = AE_NO_MEMORY;
+        goto UnlockAndExit;
+    }
+
+    /* Init handler obj */
+
+    HandlerObj->AddressSpace.SpaceId = (UINT8) SpaceId;
+    HandlerObj->AddressSpace.HandlerFlags = Flags;
+    HandlerObj->AddressSpace.RegionList = NULL;
+    HandlerObj->AddressSpace.Node = Node;
+    HandlerObj->AddressSpace.Handler = Handler;
+    HandlerObj->AddressSpace.Context = Context;
+    HandlerObj->AddressSpace.Setup  = Setup;
+
+    /* Install at head of Device.AddressSpace list */
+
+    HandlerObj->AddressSpace.Next = ObjDesc->Device.Handler;
+
+    /*
+     * The Device object is the first reference on the HandlerObj.
+     * Each region that uses the handler adds a reference.
+     */
+    ObjDesc->Device.Handler = HandlerObj;
+
+    /*
+     * Walk the namespace finding all of the regions this
+     * handler will manage.
+     *
+     * Start at the device and search the branch toward
+     * the leaf nodes until either the leaf is encountered or
+     * a device is detected that has an address handler of the
+     * same type.
+     *
+     * In either case, back up and search down the remainder
+     * of the branch
+     */
+    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX,
+                ACPI_NS_WALK_UNLOCK, AcpiEvInstallHandler, NULL,
+                HandlerObj, NULL);
+
+UnlockAndExit:
+    return_ACPI_STATUS (Status);
+}
diff --git a/sys/contrib/dev/acpica/components/events/evmisc.c b/sys/contrib/dev/acpica/components/events/evmisc.c
index b63aafc..034b8e0 100644
--- a/sys/contrib/dev/acpica/components/events/evmisc.c
+++ b/sys/contrib/dev/acpica/components/events/evmisc.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evregion.c b/sys/contrib/dev/acpica/components/events/evregion.c
index d149181..7bfb1f5 100644
--- a/sys/contrib/dev/acpica/components/events/evregion.c
+++ b/sys/contrib/dev/acpica/components/events/evregion.c
@@ -1,11 +1,11 @@
 /******************************************************************************
  *
- * Module Name: evregion - ACPI AddressSpace (OpRegion) handler dispatch
+ * Module Name: evregion - Operation Region support
  *
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -54,12 +54,9 @@
         ACPI_MODULE_NAME    ("evregion")
 
 
-/* Local prototypes */
+extern UINT8        AcpiGbl_DefaultAddressSpaces[];
 
-static BOOLEAN
-AcpiEvHasDefaultHandler (
-    ACPI_NAMESPACE_NODE     *Node,
-    ACPI_ADR_SPACE_TYPE     SpaceId);
+/* Local prototypes */
 
 static void
 AcpiEvOrphanEcRegMethod (
@@ -72,152 +69,6 @@ AcpiEvRegRun (
     void                    *Context,
     void                    **ReturnValue);
 
-static ACPI_STATUS
-AcpiEvInstallHandler (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue);
-
-/* These are the address spaces that will get default handlers */
-
-#define ACPI_NUM_DEFAULT_SPACES     4
-
-static UINT8        AcpiGbl_DefaultAddressSpaces[ACPI_NUM_DEFAULT_SPACES] =
-{
-    ACPI_ADR_SPACE_SYSTEM_MEMORY,
-    ACPI_ADR_SPACE_SYSTEM_IO,
-    ACPI_ADR_SPACE_PCI_CONFIG,
-    ACPI_ADR_SPACE_DATA_TABLE
-};
-
-
-/*******************************************************************************
- *
- * FUNCTION:    AcpiEvInstallRegionHandlers
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Installs the core subsystem default address space handlers.
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiEvInstallRegionHandlers (
-    void)
-{
-    ACPI_STATUS             Status;
-    UINT32                  i;
-
-
-    ACPI_FUNCTION_TRACE (EvInstallRegionHandlers);
-
-
-    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
-    if (ACPI_FAILURE (Status))
-    {
-        return_ACPI_STATUS (Status);
-    }
-
-    /*
-     * All address spaces (PCI Config, EC, SMBus) are scope dependent and
-     * registration must occur for a specific device.
-     *
-     * In the case of the system memory and IO address spaces there is
-     * currently no device associated with the address space. For these we
-     * use the root.
-     *
-     * We install the default PCI config space handler at the root so that
-     * this space is immediately available even though the we have not
-     * enumerated all the PCI Root Buses yet. This is to conform to the ACPI
-     * specification which states that the PCI config space must be always
-     * available -- even though we are nowhere near ready to find the PCI root
-     * buses at this point.
-     *
-     * NOTE: We ignore AE_ALREADY_EXISTS because this means that a handler
-     * has already been installed (via AcpiInstallAddressSpaceHandler).
-     * Similar for AE_SAME_HANDLER.
-     */
-    for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++)
-    {
-        Status = AcpiEvInstallSpaceHandler (AcpiGbl_RootNode,
-                    AcpiGbl_DefaultAddressSpaces[i],
-                    ACPI_DEFAULT_HANDLER, NULL, NULL);
-        switch (Status)
-        {
-        case AE_OK:
-        case AE_SAME_HANDLER:
-        case AE_ALREADY_EXISTS:
-
-            /* These exceptions are all OK */
-
-            Status = AE_OK;
-            break;
-
-        default:
-
-            goto UnlockAndExit;
-        }
-    }
-
-UnlockAndExit:
-    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
-    return_ACPI_STATUS (Status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    AcpiEvHasDefaultHandler
- *
- * PARAMETERS:  Node                - Namespace node for the device
- *              SpaceId             - The address space ID
- *
- * RETURN:      TRUE if default handler is installed, FALSE otherwise
- *
- * DESCRIPTION: Check if the default handler is installed for the requested
- *              space ID.
- *
- ******************************************************************************/
-
-static BOOLEAN
-AcpiEvHasDefaultHandler (
-    ACPI_NAMESPACE_NODE     *Node,
-    ACPI_ADR_SPACE_TYPE     SpaceId)
-{
-    ACPI_OPERAND_OBJECT     *ObjDesc;
-    ACPI_OPERAND_OBJECT     *HandlerObj;
-
-
-    /* Must have an existing internal object */
-
-    ObjDesc = AcpiNsGetAttachedObject (Node);
-    if (ObjDesc)
-    {
-        HandlerObj = ObjDesc->Device.Handler;
-
-        /* Walk the linked list of handlers for this object */
-
-        while (HandlerObj)
-        {
-            if (HandlerObj->AddressSpace.SpaceId == SpaceId)
-            {
-                if (HandlerObj->AddressSpace.HandlerFlags &
-                        ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)
-                {
-                    return (TRUE);
-                }
-            }
-
-            HandlerObj = HandlerObj->AddressSpace.Next;
-        }
-    }
-
-    return (FALSE);
-}
-
 
 /*******************************************************************************
  *
@@ -275,100 +126,6 @@ AcpiEvInitializeOpRegions (
 
 /*******************************************************************************
  *
- * FUNCTION:    AcpiEvExecuteRegMethod
- *
- * PARAMETERS:  RegionObj           - Region object
- *              Function            - Passed to _REG: On (1) or Off (0)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Execute _REG method for a region
- *
- ******************************************************************************/
-
-ACPI_STATUS
-AcpiEvExecuteRegMethod (
-    ACPI_OPERAND_OBJECT     *RegionObj,
-    UINT32                  Function)
-{
-    ACPI_EVALUATE_INFO      *Info;
-    ACPI_OPERAND_OBJECT     *Args[3];
-    ACPI_OPERAND_OBJECT     *RegionObj2;
-    ACPI_STATUS             Status;
-
-
-    ACPI_FUNCTION_TRACE (EvExecuteRegMethod);
-
-
-    RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
-    if (!RegionObj2)
-    {
-        return_ACPI_STATUS (AE_NOT_EXIST);
-    }
-
-    if (RegionObj2->Extra.Method_REG == NULL)
-    {
-        return_ACPI_STATUS (AE_OK);
-    }
-
-    /* Allocate and initialize the evaluation information block */
-
-    Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
-    if (!Info)
-    {
-        return_ACPI_STATUS (AE_NO_MEMORY);
-    }
-
-    Info->PrefixNode = RegionObj2->Extra.Method_REG;
-    Info->Pathname = NULL;
-    Info->Parameters = Args;
-    Info->Flags = ACPI_IGNORE_RETURN_VALUE;
-
-    /*
-     * The _REG method has two arguments:
-     *
-     * Arg0 - Integer:
-     *  Operation region space ID Same value as RegionObj->Region.SpaceId
-     *
-     * Arg1 - Integer:
-     *  connection status 1 for connecting the handler, 0 for disconnecting
-     *  the handler (Passed as a parameter)
-     */
-    Args[0] = AcpiUtCreateIntegerObject ((UINT64) RegionObj->Region.SpaceId);
-    if (!Args[0])
-    {
-        Status = AE_NO_MEMORY;
-        goto Cleanup1;
-    }
-
-    Args[1] = AcpiUtCreateIntegerObject ((UINT64) Function);
-    if (!Args[1])
-    {
-        Status = AE_NO_MEMORY;
-        goto Cleanup2;
-    }
-
-    Args[2] = NULL; /* Terminate list */
-
-    /* Execute the method, no return value */
-
-    ACPI_DEBUG_EXEC (
-        AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Info->PrefixNode, NULL));
-
-    Status = AcpiNsEvaluate (Info);
-    AcpiUtRemoveReference (Args[1]);
-
-Cleanup2:
-    AcpiUtRemoveReference (Args[0]);
-
-Cleanup1:
-    ACPI_FREE (Info);
-    return_ACPI_STATUS (Status);
-}
-
-
-/*******************************************************************************
- *
  * FUNCTION:    AcpiEvAddressSpaceDispatch
  *
  * PARAMETERS:  RegionObj           - Internal region object
@@ -762,377 +519,94 @@ AcpiEvAttachRegion (
 
 /*******************************************************************************
  *
- * FUNCTION:    AcpiEvInstallHandler
- *
- * PARAMETERS:  WalkNamespace callback
- *
- * DESCRIPTION: This routine installs an address handler into objects that are
- *              of type Region or Device.
- *
- *              If the Object is a Device, and the device has a handler of
- *              the same type then the search is terminated in that branch.
- *
- *              This is because the existing handler is closer in proximity
- *              to any more regions than the one we are trying to install.
- *
- ******************************************************************************/
-
-static ACPI_STATUS
-AcpiEvInstallHandler (
-    ACPI_HANDLE             ObjHandle,
-    UINT32                  Level,
-    void                    *Context,
-    void                    **ReturnValue)
-{
-    ACPI_OPERAND_OBJECT     *HandlerObj;
-    ACPI_OPERAND_OBJECT     *NextHandlerObj;
-    ACPI_OPERAND_OBJECT     *ObjDesc;
-    ACPI_NAMESPACE_NODE     *Node;
-    ACPI_STATUS             Status;
-
-
-    ACPI_FUNCTION_NAME (EvInstallHandler);
-
-
-    HandlerObj = (ACPI_OPERAND_OBJECT  *) Context;
-
-    /* Parameter validation */
-
-    if (!HandlerObj)
-    {
-        return (AE_OK);
-    }
-
-    /* Convert and validate the device handle */
-
-    Node = AcpiNsValidateHandle (ObjHandle);
-    if (!Node)
-    {
-        return (AE_BAD_PARAMETER);
-    }
-
-    /*
-     * We only care about regions and objects that are allowed to have
-     * address space handlers
-     */
-    if ((Node->Type != ACPI_TYPE_DEVICE) &&
-        (Node->Type != ACPI_TYPE_REGION) &&
-        (Node != AcpiGbl_RootNode))
-    {
-        return (AE_OK);
-    }
-
-    /* Check for an existing internal object */
-
-    ObjDesc = AcpiNsGetAttachedObject (Node);
-    if (!ObjDesc)
-    {
-        /* No object, just exit */
-
-        return (AE_OK);
-    }
-
-    /* Devices are handled different than regions */
-
-    if (ObjDesc->Common.Type == ACPI_TYPE_DEVICE)
-    {
-        /* Check if this Device already has a handler for this address space */
-
-        NextHandlerObj = ObjDesc->Device.Handler;
-        while (NextHandlerObj)
-        {
-            /* Found a handler, is it for the same address space? */
-
-            if (NextHandlerObj->AddressSpace.SpaceId ==
-                    HandlerObj->AddressSpace.SpaceId)
-            {
-                ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
-                    "Found handler for region [%s] in device %p(%p) "
-                    "handler %p\n",
-                    AcpiUtGetRegionName (HandlerObj->AddressSpace.SpaceId),
-                    ObjDesc, NextHandlerObj, HandlerObj));
-
-                /*
-                 * Since the object we found it on was a device, then it
-                 * means that someone has already installed a handler for
-                 * the branch of the namespace from this device on. Just
-                 * bail out telling the walk routine to not traverse this
-                 * branch. This preserves the scoping rule for handlers.
-                 */
-                return (AE_CTRL_DEPTH);
-            }
-
-            /* Walk the linked list of handlers attached to this device */
-
-            NextHandlerObj = NextHandlerObj->AddressSpace.Next;
-        }
-
-        /*
-         * As long as the device didn't have a handler for this space we
-         * don't care about it. We just ignore it and proceed.
-         */
-        return (AE_OK);
-    }
-
-    /* Object is a Region */
-
-    if (ObjDesc->Region.SpaceId != HandlerObj->AddressSpace.SpaceId)
-    {
-        /* This region is for a different address space, just ignore it */
-
-        return (AE_OK);
-    }
-
-    /*
-     * Now we have a region and it is for the handler's address space type.
-     *
-     * First disconnect region for any previous handler (if any)
-     */
-    AcpiEvDetachRegion (ObjDesc, FALSE);
-
-    /* Connect the region to the new handler */
-
-    Status = AcpiEvAttachRegion (HandlerObj, ObjDesc, FALSE);
-    return (Status);
-}
-
-
-/*******************************************************************************
- *
- * FUNCTION:    AcpiEvInstallSpaceHandler
+ * FUNCTION:    AcpiEvExecuteRegMethod
  *
- * PARAMETERS:  Node            - Namespace node for the device
- *              SpaceId         - The address space ID
- *              Handler         - Address of the handler
- *              Setup           - Address of the setup function
- *              Context         - Value passed to the handler on each access
+ * PARAMETERS:  RegionObj           - Region object
+ *              Function            - Passed to _REG: On (1) or Off (0)
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Install a handler for all OpRegions of a given SpaceId.
- *              Assumes namespace is locked
+ * DESCRIPTION: Execute _REG method for a region
  *
  ******************************************************************************/
 
 ACPI_STATUS
-AcpiEvInstallSpaceHandler (
-    ACPI_NAMESPACE_NODE     *Node,
-    ACPI_ADR_SPACE_TYPE     SpaceId,
-    ACPI_ADR_SPACE_HANDLER  Handler,
-    ACPI_ADR_SPACE_SETUP    Setup,
-    void                    *Context)
+AcpiEvExecuteRegMethod (
+    ACPI_OPERAND_OBJECT     *RegionObj,
+    UINT32                  Function)
 {
-    ACPI_OPERAND_OBJECT     *ObjDesc;
-    ACPI_OPERAND_OBJECT     *HandlerObj;
+    ACPI_EVALUATE_INFO      *Info;
+    ACPI_OPERAND_OBJECT     *Args[3];
+    ACPI_OPERAND_OBJECT     *RegionObj2;
     ACPI_STATUS             Status;
-    ACPI_OBJECT_TYPE        Type;
-    UINT8                  Flags = 0;
-
 
-    ACPI_FUNCTION_TRACE (EvInstallSpaceHandler);
 
+    ACPI_FUNCTION_TRACE (EvExecuteRegMethod);
 
-    /*
-     * This registration is valid for only the types below and the root. This
-     * is where the default handlers get placed.
-     */
-    if ((Node->Type != ACPI_TYPE_DEVICE)     &&
-        (Node->Type != ACPI_TYPE_PROCESSOR)  &&
-        (Node->Type != ACPI_TYPE_THERMAL)    &&
-        (Node != AcpiGbl_RootNode))
-    {
-        Status = AE_BAD_PARAMETER;
-        goto UnlockAndExit;
-    }
 
-    if (Handler == ACPI_DEFAULT_HANDLER)
+    RegionObj2 = AcpiNsGetSecondaryObject (RegionObj);
+    if (!RegionObj2)
     {
-        Flags = ACPI_ADDR_HANDLER_DEFAULT_INSTALLED;
-
-        switch (SpaceId)
-        {
-        case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-            Handler = AcpiExSystemMemorySpaceHandler;
-            Setup   = AcpiEvSystemMemoryRegionSetup;
-            break;
-
-        case ACPI_ADR_SPACE_SYSTEM_IO:
-            Handler = AcpiExSystemIoSpaceHandler;
-            Setup   = AcpiEvIoSpaceRegionSetup;
-            break;
-
-        case ACPI_ADR_SPACE_PCI_CONFIG:
-            Handler = AcpiExPciConfigSpaceHandler;
-            Setup   = AcpiEvPciConfigRegionSetup;
-            break;
-
-        case ACPI_ADR_SPACE_CMOS:
-            Handler = AcpiExCmosSpaceHandler;
-            Setup   = AcpiEvCmosRegionSetup;
-            break;
-
-        case ACPI_ADR_SPACE_PCI_BAR_TARGET:
-            Handler = AcpiExPciBarSpaceHandler;
-            Setup   = AcpiEvPciBarRegionSetup;
-            break;
-
-        case ACPI_ADR_SPACE_DATA_TABLE:
-            Handler = AcpiExDataTableSpaceHandler;
-            Setup   = NULL;
-            break;
-
-        default:
-            Status = AE_BAD_PARAMETER;
-            goto UnlockAndExit;
-        }
+        return_ACPI_STATUS (AE_NOT_EXIST);
     }
 
-    /* If the caller hasn't specified a setup routine, use the default */
-
-    if (!Setup)
+    if (RegionObj2->Extra.Method_REG == NULL)
     {
-        Setup = AcpiEvDefaultRegionSetup;
+        return_ACPI_STATUS (AE_OK);
     }
 
-    /* Check for an existing internal object */
-
-    ObjDesc = AcpiNsGetAttachedObject (Node);
-    if (ObjDesc)
-    {
-        /*
-         * The attached device object already exists. Make sure the handler
-         * is not already installed.
-         */
-        HandlerObj = ObjDesc->Device.Handler;
-
-        /* Walk the handler list for this device */
-
-        while (HandlerObj)
-        {
-            /* Same SpaceId indicates a handler already installed */
-
-            if (HandlerObj->AddressSpace.SpaceId == SpaceId)
-            {
-                if (HandlerObj->AddressSpace.Handler == Handler)
-                {
-                    /*
-                     * It is (relatively) OK to attempt to install the SAME
-                     * handler twice. This can easily happen with the
-                     * PCI_Config space.
-                     */
-                    Status = AE_SAME_HANDLER;
-                    goto UnlockAndExit;
-                }
-                else
-                {
-                    /* A handler is already installed */
-
-                    Status = AE_ALREADY_EXISTS;
-                }
-                goto UnlockAndExit;
-            }
-
-            /* Walk the linked list of handlers */
+    /* Allocate and initialize the evaluation information block */
 
-            HandlerObj = HandlerObj->AddressSpace.Next;
-        }
-    }
-    else
+    Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
+    if (!Info)
     {
-        ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
-            "Creating object on Device %p while installing handler\n", Node));
-
-        /* ObjDesc does not exist, create one */
-
-        if (Node->Type == ACPI_TYPE_ANY)
-        {
-            Type = ACPI_TYPE_DEVICE;
-        }
-        else
-        {
-            Type = Node->Type;
-        }
-
-        ObjDesc = AcpiUtCreateInternalObject (Type);
-        if (!ObjDesc)
-        {
-            Status = AE_NO_MEMORY;
-            goto UnlockAndExit;
-        }
-
-        /* Init new descriptor */
-
-        ObjDesc->Common.Type = (UINT8) Type;
-
-        /* Attach the new object to the Node */
-
-        Status = AcpiNsAttachObject (Node, ObjDesc, Type);
-
-        /* Remove local reference to the object */
-
-        AcpiUtRemoveReference (ObjDesc);
-
-        if (ACPI_FAILURE (Status))
-        {
-            goto UnlockAndExit;
-        }
+        return_ACPI_STATUS (AE_NO_MEMORY);
     }
 
-    ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
-        "Installing address handler for region %s(%X) on Device %4.4s %p(%p)\n",
-        AcpiUtGetRegionName (SpaceId), SpaceId,
-        AcpiUtGetNodeName (Node), Node, ObjDesc));
+    Info->PrefixNode = RegionObj2->Extra.Method_REG;
+    Info->Pathname = NULL;
+    Info->Parameters = Args;
+    Info->Flags = ACPI_IGNORE_RETURN_VALUE;
 
     /*
-     * Install the handler
+     * The _REG method has two arguments:
+     *
+     * Arg0 - Integer:
+     *  Operation region space ID Same value as RegionObj->Region.SpaceId
      *
-     * At this point there is no existing handler. Just allocate the object
-     * for the handler and link it into the list.
+     * Arg1 - Integer:
+     *  connection status 1 for connecting the handler, 0 for disconnecting
+     *  the handler (Passed as a parameter)
      */
-    HandlerObj = AcpiUtCreateInternalObject (ACPI_TYPE_LOCAL_ADDRESS_HANDLER);
-    if (!HandlerObj)
+    Args[0] = AcpiUtCreateIntegerObject ((UINT64) RegionObj->Region.SpaceId);
+    if (!Args[0])
     {
         Status = AE_NO_MEMORY;
-        goto UnlockAndExit;
+        goto Cleanup1;
     }
 
-    /* Init handler obj */
+    Args[1] = AcpiUtCreateIntegerObject ((UINT64) Function);
+    if (!Args[1])
+    {
+        Status = AE_NO_MEMORY;
+        goto Cleanup2;
+    }
 
-    HandlerObj->AddressSpace.SpaceId = (UINT8) SpaceId;
-    HandlerObj->AddressSpace.HandlerFlags = Flags;
-    HandlerObj->AddressSpace.RegionList = NULL;
-    HandlerObj->AddressSpace.Node = Node;
-    HandlerObj->AddressSpace.Handler = Handler;
-    HandlerObj->AddressSpace.Context = Context;
-    HandlerObj->AddressSpace.Setup  = Setup;
+    Args[2] = NULL; /* Terminate list */
 
-    /* Install at head of Device.AddressSpace list */
+    /* Execute the method, no return value */
 
-    HandlerObj->AddressSpace.Next = ObjDesc->Device.Handler;
+    ACPI_DEBUG_EXEC (
+        AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Info->PrefixNode, NULL));
 
-    /*
-     * The Device object is the first reference on the HandlerObj.
-     * Each region that uses the handler adds a reference.
-     */
-    ObjDesc->Device.Handler = HandlerObj;
+    Status = AcpiNsEvaluate (Info);
+    AcpiUtRemoveReference (Args[1]);
 
-    /*
-     * Walk the namespace finding all of the regions this
-     * handler will manage.
-     *
-     * Start at the device and search the branch toward
-     * the leaf nodes until either the leaf is encountered or
-     * a device is detected that has an address handler of the
-     * same type.
-     *
-     * In either case, back up and search down the remainder
-     * of the branch
-     */
-    Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, Node, ACPI_UINT32_MAX,
-                ACPI_NS_WALK_UNLOCK, AcpiEvInstallHandler, NULL,
-                HandlerObj, NULL);
+Cleanup2:
+    AcpiUtRemoveReference (Args[0]);
 
-UnlockAndExit:
+Cleanup1:
+    ACPI_FREE (Info);
     return_ACPI_STATUS (Status);
 }
 
diff --git a/sys/contrib/dev/acpica/components/events/evrgnini.c b/sys/contrib/dev/acpica/components/events/evrgnini.c
index 28c367f..90a6b02 100644
--- a/sys/contrib/dev/acpica/components/events/evrgnini.c
+++ b/sys/contrib/dev/acpica/components/events/evrgnini.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evsci.c b/sys/contrib/dev/acpica/components/events/evsci.c
index 0e7a65a..340c400 100644
--- a/sys/contrib/dev/acpica/components/events/evsci.c
+++ b/sys/contrib/dev/acpica/components/events/evsci.c
@@ -6,7 +6,7 @@
  ******************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -101,7 +101,7 @@ AcpiEvSciXruptHandler (
     InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
 
     AcpiSciCount++;
-    return_UINT32 (InterruptHandled);
+    return_VALUE (InterruptHandled);
 }
 
 
@@ -137,7 +137,7 @@ AcpiEvGpeXruptHandler (
 
     InterruptHandled |= AcpiEvGpeDetect (GpeXruptList);
 
-    return_UINT32 (InterruptHandled);
+    return_VALUE (InterruptHandled);
 }
 
 
diff --git a/sys/contrib/dev/acpica/components/events/evxface.c b/sys/contrib/dev/acpica/components/events/evxface.c
index 4027dce..dfc4790 100644
--- a/sys/contrib/dev/acpica/components/events/evxface.c
+++ b/sys/contrib/dev/acpica/components/events/evxface.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evxfevnt.c b/sys/contrib/dev/acpica/components/events/evxfevnt.c
index 4e87cde..e0f36e2 100644
--- a/sys/contrib/dev/acpica/components/events/evxfevnt.c
+++ b/sys/contrib/dev/acpica/components/events/evxfevnt.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evxfgpe.c b/sys/contrib/dev/acpica/components/events/evxfgpe.c
index a07751c..c574b79 100644
--- a/sys/contrib/dev/acpica/components/events/evxfgpe.c
+++ b/sys/contrib/dev/acpica/components/events/evxfgpe.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/contrib/dev/acpica/components/events/evxfregn.c b/sys/contrib/dev/acpica/components/events/evxfregn.c
index 59238ef..95e598b 100644
--- a/sys/contrib/dev/acpica/components/events/evxfregn.c
+++ b/sys/contrib/dev/acpica/components/events/evxfregn.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2012, Intel Corp.
+ * Copyright (C) 2000 - 2013, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without