diff options
Diffstat (limited to 'sys/contrib/dev/acpica/evrgnini.c')
| -rw-r--r-- | sys/contrib/dev/acpica/evrgnini.c | 821 |
1 files changed, 821 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/evrgnini.c b/sys/contrib/dev/acpica/evrgnini.c new file mode 100644 index 0000000..615c397 --- /dev/null +++ b/sys/contrib/dev/acpica/evrgnini.c @@ -0,0 +1,821 @@ +/****************************************************************************** + * + * Module Name: evrgnini- ACPI AddressSpace (OpRegion) init + * $Revision: 1.88 $ + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2007, 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 __EVRGNINI_C__ + +#include <contrib/dev/acpica/acpi.h> +#include <contrib/dev/acpica/acevents.h> +#include <contrib/dev/acpica/acnamesp.h> + +#define _COMPONENT ACPI_EVENTS + ACPI_MODULE_NAME ("evrgnini") + +/* Local prototypes */ + +static BOOLEAN +AcpiEvMatchPciRootBridge ( + char *Id); + +static BOOLEAN +AcpiEvIsPciRootBridge ( + ACPI_NAMESPACE_NODE *Node); + + +/******************************************************************************* + * + * FUNCTION: AcpiEvSystemMemoryRegionSetup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a SystemMemory operation region + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvSystemMemoryRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + ACPI_OPERAND_OBJECT *RegionDesc = (ACPI_OPERAND_OBJECT *) Handle; + ACPI_MEM_SPACE_CONTEXT *LocalRegionContext; + + + ACPI_FUNCTION_TRACE (EvSystemMemoryRegionSetup); + + + if (Function == ACPI_REGION_DEACTIVATE) + { + if (*RegionContext) + { + LocalRegionContext = (ACPI_MEM_SPACE_CONTEXT *) *RegionContext; + + /* Delete a cached mapping if present */ + + if (LocalRegionContext->MappedLength) + { + AcpiOsUnmapMemory (LocalRegionContext->MappedLogicalAddress, + LocalRegionContext->MappedLength); + } + ACPI_FREE (LocalRegionContext); + *RegionContext = NULL; + } + return_ACPI_STATUS (AE_OK); + } + + /* Create a new context */ + + LocalRegionContext = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_MEM_SPACE_CONTEXT)); + if (!(LocalRegionContext)) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* Save the region length and address for use in the handler */ + + LocalRegionContext->Length = RegionDesc->Region.Length; + LocalRegionContext->Address = RegionDesc->Region.Address; + + *RegionContext = LocalRegionContext; + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvIoSpaceRegionSetup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a IO operation region + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvIoSpaceRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + ACPI_FUNCTION_TRACE (EvIoSpaceRegionSetup); + + + if (Function == ACPI_REGION_DEACTIVATE) + { + *RegionContext = NULL; + } + else + { + *RegionContext = HandlerContext; + } + + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvPciConfigRegionSetup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a PCI_Config operation region + * + * MUTEX: Assumes namespace is not locked + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvPciConfigRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + ACPI_STATUS Status = AE_OK; + ACPI_INTEGER PciValue; + ACPI_PCI_ID *PciId = *RegionContext; + ACPI_OPERAND_OBJECT *HandlerObj; + ACPI_NAMESPACE_NODE *ParentNode; + ACPI_NAMESPACE_NODE *PciRootNode; + ACPI_NAMESPACE_NODE *PciDeviceNode; + ACPI_OPERAND_OBJECT *RegionObj = (ACPI_OPERAND_OBJECT *) Handle; + + + ACPI_FUNCTION_TRACE (EvPciConfigRegionSetup); + + + HandlerObj = RegionObj->Region.Handler; + if (!HandlerObj) + { + /* + * No installed handler. This shouldn't happen because the dispatch + * routine checks before we get here, but we check again just in case. + */ + ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, + "Attempting to init a region %p, with no handler\n", RegionObj)); + return_ACPI_STATUS (AE_NOT_EXIST); + } + + *RegionContext = NULL; + if (Function == ACPI_REGION_DEACTIVATE) + { + if (PciId) + { + ACPI_FREE (PciId); + } + return_ACPI_STATUS (Status); + } + + ParentNode = AcpiNsGetParentNode (RegionObj->Region.Node); + + /* + * Get the _SEG and _BBN values from the device upon which the handler + * is installed. + * + * We need to get the _SEG and _BBN objects relative to the PCI BUS device. + * This is the device the handler has been registered to handle. + */ + + /* + * If the AddressSpace.Node is still pointing to the root, we need + * to scan upward for a PCI Root bridge and re-associate the OpRegion + * handlers with that device. + */ + if (HandlerObj->AddressSpace.Node == AcpiGbl_RootNode) + { + /* Start search from the parent object */ + + PciRootNode = ParentNode; + while (PciRootNode != AcpiGbl_RootNode) + { + /* Get the _HID/_CID in order to detect a RootBridge */ + + if (AcpiEvIsPciRootBridge (PciRootNode)) + { + /* Install a handler for this PCI root bridge */ + + Status = AcpiInstallAddressSpaceHandler ( + (ACPI_HANDLE) PciRootNode, + ACPI_ADR_SPACE_PCI_CONFIG, + ACPI_DEFAULT_HANDLER, NULL, NULL); + if (ACPI_FAILURE (Status)) + { + if (Status == AE_SAME_HANDLER) + { + /* + * It is OK if the handler is already installed on the root + * bridge. Still need to return a context object for the + * new PCI_Config operation region, however. + */ + Status = AE_OK; + } + else + { + ACPI_EXCEPTION ((AE_INFO, Status, + "Could not install PciConfig handler for Root Bridge %4.4s", + AcpiUtGetNodeName (PciRootNode))); + } + } + break; + } + + PciRootNode = AcpiNsGetParentNode (PciRootNode); + } + + /* PCI root bridge not found, use namespace root node */ + } + else + { + PciRootNode = HandlerObj->AddressSpace.Node; + } + + /* + * If this region is now initialized, we are done. + * (InstallAddressSpaceHandler could have initialized it) + */ + if (RegionObj->Region.Flags & AOPOBJ_SETUP_COMPLETE) + { + return_ACPI_STATUS (AE_OK); + } + + /* Region is still not initialized. Create a new context */ + + PciId = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PCI_ID)); + if (!PciId) + { + return_ACPI_STATUS (AE_NO_MEMORY); + } + + /* + * For PCI_Config space access, we need the segment, bus, + * device and function numbers. Acquire them here. + * + * Find the parent device object. (This allows the operation region to be + * within a subscope under the device, such as a control method.) + */ + PciDeviceNode = RegionObj->Region.Node; + while (PciDeviceNode && (PciDeviceNode->Type != ACPI_TYPE_DEVICE)) + { + PciDeviceNode = AcpiNsGetParentNode (PciDeviceNode); + } + + if (!PciDeviceNode) + { + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + + /* + * Get the PCI device and function numbers from the _ADR object + * contained in the parent's scope. + */ + Status = AcpiUtEvaluateNumericObject (METHOD_NAME__ADR, PciDeviceNode, &PciValue); + + /* + * The default is zero, and since the allocation above zeroed + * the data, just do nothing on failure. + */ + if (ACPI_SUCCESS (Status)) + { + PciId->Device = ACPI_HIWORD (ACPI_LODWORD (PciValue)); + PciId->Function = ACPI_LOWORD (ACPI_LODWORD (PciValue)); + } + + /* The PCI segment number comes from the _SEG method */ + + Status = AcpiUtEvaluateNumericObject (METHOD_NAME__SEG, PciRootNode, &PciValue); + if (ACPI_SUCCESS (Status)) + { + PciId->Segment = ACPI_LOWORD (PciValue); + } + + /* The PCI bus number comes from the _BBN method */ + + Status = AcpiUtEvaluateNumericObject (METHOD_NAME__BBN, PciRootNode, &PciValue); + if (ACPI_SUCCESS (Status)) + { + PciId->Bus = ACPI_LOWORD (PciValue); + } + + /* Complete this device's PciId */ + + AcpiOsDerivePciId (PciRootNode, RegionObj->Region.Node, &PciId); + + *RegionContext = PciId; + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvMatchPciRootBridge + * + * PARAMETERS: Id - The HID/CID in string format + * + * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge + * + * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID. + * + ******************************************************************************/ + +static BOOLEAN +AcpiEvMatchPciRootBridge ( + char *Id) +{ + + /* + * Check if this is a PCI root. + * ACPI 3.0+: check for a PCI Express root also. + */ + if (!(ACPI_STRNCMP (Id, + PCI_ROOT_HID_STRING, + sizeof (PCI_ROOT_HID_STRING))) || + + !(ACPI_STRNCMP (Id, + PCI_EXPRESS_ROOT_HID_STRING, + sizeof (PCI_EXPRESS_ROOT_HID_STRING)))) + { + return (TRUE); + } + + return (FALSE); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvIsPciRootBridge + * + * PARAMETERS: Node - Device node being examined + * + * RETURN: TRUE if device is a PCI/PCI-Express Root Bridge + * + * DESCRIPTION: Determine if the input device represents a PCI Root Bridge by + * examining the _HID and _CID for the device. + * + ******************************************************************************/ + +static BOOLEAN +AcpiEvIsPciRootBridge ( + ACPI_NAMESPACE_NODE *Node) +{ + ACPI_STATUS Status; + ACPI_DEVICE_ID Hid; + ACPI_COMPATIBLE_ID_LIST *Cid; + ACPI_NATIVE_UINT i; + + + /* + * Get the _HID and check for a PCI Root Bridge + */ + Status = AcpiUtExecute_HID (Node, &Hid); + if (ACPI_FAILURE (Status)) + { + return (FALSE); + } + + if (AcpiEvMatchPciRootBridge (Hid.Value)) + { + return (TRUE); + } + + /* + * The _HID did not match. + * Get the _CID and check for a PCI Root Bridge + */ + Status = AcpiUtExecute_CID (Node, &Cid); + if (ACPI_FAILURE (Status)) + { + return (FALSE); + } + + /* Check all _CIDs in the returned list */ + + for (i = 0; i < Cid->Count; i++) + { + if (AcpiEvMatchPciRootBridge (Cid->Id[i].Value)) + { + ACPI_FREE (Cid); + return (TRUE); + } + } + + ACPI_FREE (Cid); + return (FALSE); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvPciBarRegionSetup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a PciBAR operation region + * + * MUTEX: Assumes namespace is not locked + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvPciBarRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + ACPI_FUNCTION_TRACE (EvPciBarRegionSetup); + + + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvCmosRegionSetup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Setup a CMOS operation region + * + * MUTEX: Assumes namespace is not locked + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvCmosRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + ACPI_FUNCTION_TRACE (EvCmosRegionSetup); + + + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvDefaultRegionSetup + * + * PARAMETERS: Handle - Region we are interested in + * Function - Start or stop + * HandlerContext - Address space handler context + * RegionContext - Region specific context + * + * RETURN: Status + * + * DESCRIPTION: Default region initialization + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvDefaultRegionSetup ( + ACPI_HANDLE Handle, + UINT32 Function, + void *HandlerContext, + void **RegionContext) +{ + ACPI_FUNCTION_TRACE (EvDefaultRegionSetup); + + + if (Function == ACPI_REGION_DEACTIVATE) + { + *RegionContext = NULL; + } + else + { + *RegionContext = HandlerContext; + } + + return_ACPI_STATUS (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiEvInitializeRegion + * + * PARAMETERS: RegionObj - Region we are initializing + * AcpiNsLocked - Is namespace locked? + * + * RETURN: Status + * + * DESCRIPTION: Initializes the region, finds any _REG methods and saves them + * for execution at a later time + * + * Get the appropriate address space handler for a newly + * created region. + * + * This also performs address space specific initialization. For + * example, PCI regions must have an _ADR object that contains + * a PCI address in the scope of the definition. This address is + * required to perform an access to PCI config space. + * + * MUTEX: Interpreter should be unlocked, because we may run the _REG + * method for this region. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiEvInitializeRegion ( + ACPI_OPERAND_OBJECT *RegionObj, + BOOLEAN AcpiNsLocked) +{ + ACPI_OPERAND_OBJECT *HandlerObj; + ACPI_OPERAND_OBJECT *ObjDesc; + ACPI_ADR_SPACE_TYPE SpaceId; + ACPI_NAMESPACE_NODE *Node; + ACPI_STATUS Status; + ACPI_NAMESPACE_NODE *MethodNode; + ACPI_NAME *RegNamePtr = (ACPI_NAME *) METHOD_NAME__REG; + ACPI_OPERAND_OBJECT *RegionObj2; + + + ACPI_FUNCTION_TRACE_U32 (EvInitializeRegion, AcpiNsLocked); + + + if (!RegionObj) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + if (RegionObj->Common.Flags & AOPOBJ_OBJECT_INITIALIZED) + { + return_ACPI_STATUS (AE_OK); + } + + RegionObj2 = AcpiNsGetSecondaryObject (RegionObj); + if (!RegionObj2) + { + return_ACPI_STATUS (AE_NOT_EXIST); + } + + Node = AcpiNsGetParentNode (RegionObj->Region.Node); + SpaceId = RegionObj->Region.SpaceId; + + /* Setup defaults */ + + RegionObj->Region.Handler = NULL; + RegionObj2->Extra.Method_REG = NULL; + RegionObj->Common.Flags &= ~(AOPOBJ_SETUP_COMPLETE); + RegionObj->Common.Flags |= AOPOBJ_OBJECT_INITIALIZED; + + /* Find any "_REG" method associated with this region definition */ + + Status = AcpiNsSearchOneScope ( + *RegNamePtr, Node, ACPI_TYPE_METHOD, &MethodNode); + if (ACPI_SUCCESS (Status)) + { + /* + * The _REG method is optional and there can be only one per region + * definition. This will be executed when the handler is attached + * or removed + */ + RegionObj2->Extra.Method_REG = MethodNode; + } + + /* + * The following loop depends upon the root Node having no parent + * ie: AcpiGbl_RootNode->ParentEntry being set to NULL + */ + while (Node) + { + /* Check to see if a handler exists */ + + HandlerObj = NULL; + ObjDesc = AcpiNsGetAttachedObject (Node); + if (ObjDesc) + { + /* Can only be a handler if the object exists */ + + switch (Node->Type) + { + case ACPI_TYPE_DEVICE: + + HandlerObj = ObjDesc->Device.Handler; + break; + + case ACPI_TYPE_PROCESSOR: + + HandlerObj = ObjDesc->Processor.Handler; + break; + + case ACPI_TYPE_THERMAL: + + HandlerObj = ObjDesc->ThermalZone.Handler; + break; + + default: + /* Ignore other objects */ + break; + } + + while (HandlerObj) + { + /* Is this handler of the correct type? */ + + if (HandlerObj->AddressSpace.SpaceId == SpaceId) + { + /* Found correct handler */ + + ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, + "Found handler %p for region %p in obj %p\n", + HandlerObj, RegionObj, ObjDesc)); + + Status = AcpiEvAttachRegion (HandlerObj, RegionObj, + AcpiNsLocked); + + /* + * Tell all users that this region is usable by running the _REG + * method + */ + if (AcpiNsLocked) + { + Status = AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + Status = AcpiEvExecuteRegMethod (RegionObj, 1); + + if (AcpiNsLocked) + { + Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + } + + return_ACPI_STATUS (AE_OK); + } + + /* Try next handler in the list */ + + HandlerObj = HandlerObj->AddressSpace.Next; + } + } + + /* + * This node does not have the handler we need; + * Pop up one level + */ + Node = AcpiNsGetParentNode (Node); + } + + /* If we get here, there is no handler for this region */ + + ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION, + "No handler for RegionType %s(%X) (RegionObj %p)\n", + AcpiUtGetRegionName (SpaceId), SpaceId, RegionObj)); + + return_ACPI_STATUS (AE_NOT_EXIST); +} + |
