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441 lines
12 KiB
C
441 lines
12 KiB
C
/******************************************************************************
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*
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* Module Name: dsargs - Support for execution of dynamic arguments for static
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* objects (regions, fields, buffer fields, etc.)
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2020, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include "acpi.h"
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#include "accommon.h"
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#include "acparser.h"
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#include "amlcode.h"
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#include "acdispat.h"
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#include "acnamesp.h"
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#define _COMPONENT ACPI_DISPATCHER
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ACPI_MODULE_NAME ("dsargs")
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/* Local prototypes */
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static ACPI_STATUS
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AcpiDsExecuteArguments (
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ACPI_NAMESPACE_NODE *Node,
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ACPI_NAMESPACE_NODE *ScopeNode,
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UINT32 AmlLength,
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UINT8 *AmlStart);
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsExecuteArguments
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*
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* PARAMETERS: Node - Object NS node
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* ScopeNode - Parent NS node
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* AmlLength - Length of executable AML
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* AmlStart - Pointer to the AML
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Late (deferred) execution of region or field arguments
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*
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******************************************************************************/
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static ACPI_STATUS
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AcpiDsExecuteArguments (
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ACPI_NAMESPACE_NODE *Node,
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ACPI_NAMESPACE_NODE *ScopeNode,
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UINT32 AmlLength,
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UINT8 *AmlStart)
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{
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ACPI_STATUS Status;
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ACPI_PARSE_OBJECT *Op;
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ACPI_WALK_STATE *WalkState;
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ACPI_FUNCTION_TRACE_PTR (DsExecuteArguments, AmlStart);
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/* Allocate a new parser op to be the root of the parsed tree */
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Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP, AmlStart);
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if (!Op)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Save the Node for use in AcpiPsParseAml */
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Op->Common.Node = ScopeNode;
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/* Create and initialize a new parser state */
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WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
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if (!WalkState)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
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AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
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if (ACPI_FAILURE (Status))
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{
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AcpiDsDeleteWalkState (WalkState);
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goto Cleanup;
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}
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/* Mark this parse as a deferred opcode */
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WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP;
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WalkState->DeferredNode = Node;
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/* Pass1: Parse the entire declaration */
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Status = AcpiPsParseAml (WalkState);
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if (ACPI_FAILURE (Status))
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{
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goto Cleanup;
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}
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/* Get and init the Op created above */
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Op->Common.Node = Node;
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AcpiPsDeleteParseTree (Op);
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/* Evaluate the deferred arguments */
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Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP, AmlStart);
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if (!Op)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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Op->Common.Node = ScopeNode;
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/* Create and initialize a new parser state */
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WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
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if (!WalkState)
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{
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Status = AE_NO_MEMORY;
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goto Cleanup;
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}
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/* Execute the opcode and arguments */
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Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
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AmlLength, NULL, ACPI_IMODE_EXECUTE);
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if (ACPI_FAILURE (Status))
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{
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AcpiDsDeleteWalkState (WalkState);
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goto Cleanup;
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}
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/* Mark this execution as a deferred opcode */
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WalkState->DeferredNode = Node;
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Status = AcpiPsParseAml (WalkState);
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Cleanup:
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AcpiPsDeleteParseTree (Op);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsGetBufferFieldArguments
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*
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* PARAMETERS: ObjDesc - A valid BufferField object
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Get BufferField Buffer and Index. This implements the late
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* evaluation of these field attributes.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsGetBufferFieldArguments (
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ACPI_OPERAND_OBJECT *ObjDesc)
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{
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ACPI_OPERAND_OBJECT *ExtraDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc);
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if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
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{
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return_ACPI_STATUS (AE_OK);
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}
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/* Get the AML pointer (method object) and BufferField node */
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ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
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Node = ObjDesc->BufferField.Node;
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ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
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ACPI_TYPE_BUFFER_FIELD, Node, NULL));
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
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AcpiUtGetNodeName (Node)));
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/* Execute the AML code for the TermArg arguments */
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Status = AcpiDsExecuteArguments (Node, Node->Parent,
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ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsGetBankFieldArguments
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*
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* PARAMETERS: ObjDesc - A valid BankField object
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Get BankField BankValue. This implements the late
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* evaluation of these field attributes.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsGetBankFieldArguments (
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ACPI_OPERAND_OBJECT *ObjDesc)
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{
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ACPI_OPERAND_OBJECT *ExtraDesc;
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);
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if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
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{
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return_ACPI_STATUS (AE_OK);
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}
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/* Get the AML pointer (method object) and BankField node */
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ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
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Node = ObjDesc->BankField.Node;
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ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
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ACPI_TYPE_LOCAL_BANK_FIELD, Node, NULL));
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
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AcpiUtGetNodeName (Node)));
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/* Execute the AML code for the TermArg arguments */
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Status = AcpiDsExecuteArguments (Node, Node->Parent,
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ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsGetBufferArguments
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*
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* PARAMETERS: ObjDesc - A valid Buffer object
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Get Buffer length and initializer byte list. This implements
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* the late evaluation of these attributes.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsGetBufferArguments (
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ACPI_OPERAND_OBJECT *ObjDesc)
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{
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc);
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if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
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{
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return_ACPI_STATUS (AE_OK);
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}
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/* Get the Buffer node */
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Node = ObjDesc->Buffer.Node;
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if (!Node)
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{
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ACPI_ERROR ((AE_INFO,
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"No pointer back to namespace node in buffer object %p",
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ObjDesc));
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return_ACPI_STATUS (AE_AML_INTERNAL);
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}
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n"));
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/* Execute the AML code for the TermArg arguments */
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Status = AcpiDsExecuteArguments (Node, Node,
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ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsGetPackageArguments
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*
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* PARAMETERS: ObjDesc - A valid Package object
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Get Package length and initializer byte list. This implements
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* the late evaluation of these attributes.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsGetPackageArguments (
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ACPI_OPERAND_OBJECT *ObjDesc)
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{
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc);
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if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
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{
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return_ACPI_STATUS (AE_OK);
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}
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/* Get the Package node */
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Node = ObjDesc->Package.Node;
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if (!Node)
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{
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ACPI_ERROR ((AE_INFO,
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"No pointer back to namespace node in package %p", ObjDesc));
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return_ACPI_STATUS (AE_AML_INTERNAL);
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}
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Argument Init, AML Ptr: %p\n",
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ObjDesc->Package.AmlStart));
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/* Execute the AML code for the TermArg arguments */
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Status = AcpiDsExecuteArguments (Node, Node,
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ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart);
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return_ACPI_STATUS (Status);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiDsGetRegionArguments
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*
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* PARAMETERS: ObjDesc - A valid region object
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*
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* RETURN: Status.
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*
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* DESCRIPTION: Get region address and length. This implements the late
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* evaluation of these region attributes.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiDsGetRegionArguments (
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ACPI_OPERAND_OBJECT *ObjDesc)
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{
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ACPI_NAMESPACE_NODE *Node;
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ACPI_STATUS Status;
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ACPI_OPERAND_OBJECT *ExtraDesc;
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ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);
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if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
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{
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return_ACPI_STATUS (AE_OK);
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}
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ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
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if (!ExtraDesc)
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{
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return_ACPI_STATUS (AE_NOT_EXIST);
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}
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/* Get the Region node */
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Node = ObjDesc->Region.Node;
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ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
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ACPI_TYPE_REGION, Node, NULL));
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
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"[%4.4s] OpRegion Arg Init at AML %p\n",
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AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));
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/* Execute the argument AML */
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Status = AcpiDsExecuteArguments (Node, ExtraDesc->Extra.ScopeNode,
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ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId,
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ObjDesc->Region.Address, ObjDesc->Region.Length, Node);
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return_ACPI_STATUS (Status);
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}
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