123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280 |
- /******************************************************************************
- *
- * Module Name: dsinit - Object initialization namespace walk
- *
- *****************************************************************************/
- /*
- * Copyright (C) 2000 - 2015, 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.
- */
- #include "acpi.h"
- #include "accommon.h"
- #include "acdispat.h"
- #include "acnamesp.h"
- #include "actables.h"
- #define _COMPONENT ACPI_DISPATCHER
- ACPI_MODULE_NAME ("dsinit")
- /* Local prototypes */
- static ACPI_STATUS
- AcpiDsInitOneObject (
- ACPI_HANDLE ObjHandle,
- UINT32 Level,
- void *Context,
- void **ReturnValue);
- /*******************************************************************************
- *
- * FUNCTION: AcpiDsInitOneObject
- *
- * PARAMETERS: ObjHandle - Node for the object
- * Level - Current nesting level
- * Context - Points to a init info struct
- * ReturnValue - Not used
- *
- * RETURN: Status
- *
- * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
- * within the namespace.
- *
- * Currently, the only objects that require initialization are:
- * 1) Methods
- * 2) Operation Regions
- *
- ******************************************************************************/
- static ACPI_STATUS
- AcpiDsInitOneObject (
- ACPI_HANDLE ObjHandle,
- UINT32 Level,
- void *Context,
- void **ReturnValue)
- {
- ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
- ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
- ACPI_STATUS Status;
- ACPI_OPERAND_OBJECT *ObjDesc;
- ACPI_FUNCTION_ENTRY ();
- /*
- * We are only interested in NS nodes owned by the table that
- * was just loaded
- */
- if (Node->OwnerId != Info->OwnerId)
- {
- return (AE_OK);
- }
- Info->ObjectCount++;
- /* And even then, we are only interested in a few object types */
- switch (AcpiNsGetType (ObjHandle))
- {
- case ACPI_TYPE_REGION:
- Status = AcpiDsInitializeRegion (ObjHandle);
- if (ACPI_FAILURE (Status))
- {
- ACPI_EXCEPTION ((AE_INFO, Status,
- "During Region initialization %p [%4.4s]",
- ObjHandle, AcpiUtGetNodeName (ObjHandle)));
- }
- Info->OpRegionCount++;
- break;
- case ACPI_TYPE_METHOD:
- /*
- * Auto-serialization support. We will examine each method that is
- * NotSerialized to determine if it creates any Named objects. If
- * it does, it will be marked serialized to prevent problems if
- * the method is entered by two or more threads and an attempt is
- * made to create the same named object twice -- which results in
- * an AE_ALREADY_EXISTS exception and method abort.
- */
- Info->MethodCount++;
- ObjDesc = AcpiNsGetAttachedObject (Node);
- if (!ObjDesc)
- {
- break;
- }
- /* Ignore if already serialized */
- if (ObjDesc->Method.InfoFlags & ACPI_METHOD_SERIALIZED)
- {
- Info->SerialMethodCount++;
- break;
- }
- if (AcpiGbl_AutoSerializeMethods)
- {
- /* Parse/scan method and serialize it if necessary */
- AcpiDsAutoSerializeMethod (Node, ObjDesc);
- if (ObjDesc->Method.InfoFlags & ACPI_METHOD_SERIALIZED)
- {
- /* Method was just converted to Serialized */
- Info->SerialMethodCount++;
- Info->SerializedMethodCount++;
- break;
- }
- }
- Info->NonSerialMethodCount++;
- break;
- case ACPI_TYPE_DEVICE:
- Info->DeviceCount++;
- break;
- default:
- break;
- }
- /*
- * We ignore errors from above, and always return OK, since
- * we don't want to abort the walk on a single error.
- */
- return (AE_OK);
- }
- /*******************************************************************************
- *
- * FUNCTION: AcpiDsInitializeObjects
- *
- * PARAMETERS: TableDesc - Descriptor for parent ACPI table
- * StartNode - Root of subtree to be initialized.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any
- * necessary initialization on the objects found therein
- *
- ******************************************************************************/
- ACPI_STATUS
- AcpiDsInitializeObjects (
- UINT32 TableIndex,
- ACPI_NAMESPACE_NODE *StartNode)
- {
- ACPI_STATUS Status;
- ACPI_INIT_WALK_INFO Info;
- ACPI_TABLE_HEADER *Table;
- ACPI_OWNER_ID OwnerId;
- ACPI_FUNCTION_TRACE (DsInitializeObjects);
- Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
- if (ACPI_FAILURE (Status))
- {
- return_ACPI_STATUS (Status);
- }
- ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
- "**** Starting initialization of namespace objects ****\n"));
- /* Set all init info to zero */
- memset (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));
- Info.OwnerId = OwnerId;
- Info.TableIndex = TableIndex;
- /* Walk entire namespace from the supplied root */
- Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
- if (ACPI_FAILURE (Status))
- {
- return_ACPI_STATUS (Status);
- }
- /*
- * We don't use AcpiWalkNamespace since we do not want to acquire
- * the namespace reader lock.
- */
- Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX,
- ACPI_NS_WALK_UNLOCK, AcpiDsInitOneObject, NULL, &Info, NULL);
- if (ACPI_FAILURE (Status))
- {
- ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace"));
- }
- (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
- Status = AcpiGetTableByIndex (TableIndex, &Table);
- if (ACPI_FAILURE (Status))
- {
- return_ACPI_STATUS (Status);
- }
- /* DSDT is always the first AML table */
- if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_DSDT))
- {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
- "\nInitializing Namespace objects:\n"));
- }
- /* Summary of objects initialized */
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
- "Table [%4.4s: %-8.8s] (id %.2X) - %4u Objects with %3u Devices, "
- "%3u Regions, %4u Methods (%u/%u/%u Serial/Non/Cvt)\n",
- Table->Signature, Table->OemTableId, OwnerId, Info.ObjectCount,
- Info.DeviceCount,Info.OpRegionCount, Info.MethodCount,
- Info.SerialMethodCount, Info.NonSerialMethodCount,
- Info.SerializedMethodCount));
- ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "%u Methods, %u Regions\n",
- Info.MethodCount, Info.OpRegionCount));
- return_ACPI_STATUS (AE_OK);
- }
|