diff options
Diffstat (limited to 'sys/contrib/dev/acpica/dsutils.c')
| -rw-r--r-- | sys/contrib/dev/acpica/dsutils.c | 124 |
1 files changed, 69 insertions, 55 deletions
diff --git a/sys/contrib/dev/acpica/dsutils.c b/sys/contrib/dev/acpica/dsutils.c index 11a140a..b6291fb 100644 --- a/sys/contrib/dev/acpica/dsutils.c +++ b/sys/contrib/dev/acpica/dsutils.c @@ -1,7 +1,7 @@ /******************************************************************************* * * Module Name: dsutils - Dispatcher utilities - * $Revision: 99 $ + * $Revision: 100 $ * ******************************************************************************/ @@ -127,6 +127,7 @@ #define _COMPONENT ACPI_DISPATCHER ACPI_MODULE_NAME ("dsutils") + #ifndef ACPI_NO_METHOD_EXECUTION /******************************************************************************* @@ -277,7 +278,6 @@ ResultNotUsed: AcpiPsGetOpcodeName (Op->Common.Parent->Common.AmlOpcode), Op)); return_VALUE (FALSE); - } @@ -322,7 +322,6 @@ AcpiDsDeleteResultIfNotUsed ( return_VOID; } - if (!AcpiDsIsResultUsed (Op, WalkState)) { /* @@ -479,67 +478,85 @@ AcpiDsCreateOperand ( * in NameString */ + /* - * Differentiate between a namespace "create" operation - * versus a "lookup" operation (IMODE_LOAD_PASS2 vs. - * IMODE_EXECUTE) in order to support the creation of - * namespace objects during the execution of control methods. + * Special handling for BufferField declarations. This is a deferred + * opcode that unfortunately defines the field name as the last + * parameter instead of the first. We get here when we are performing + * the deferred execution, so the actual name of the field is already + * in the namespace. We don't want to attempt to look it up again + * because we may be executing in a different scope than where the + * actual opcode exists. */ - ParentOp = Arg->Common.Parent; - OpInfo = AcpiPsGetOpcodeInfo (ParentOp->Common.AmlOpcode); - if ((OpInfo->Flags & AML_NSNODE) && - (ParentOp->Common.AmlOpcode != AML_INT_METHODCALL_OP) && - (ParentOp->Common.AmlOpcode != AML_REGION_OP) && - (ParentOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP)) + if ((WalkState->DeferredNode) && + (WalkState->DeferredNode->Type == ACPI_TYPE_BUFFER_FIELD) && + (ArgIndex != 0)) { - /* Enter name into namespace if not found */ - - InterpreterMode = ACPI_IMODE_LOAD_PASS2; + ObjDesc = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, WalkState->DeferredNode); + Status = AE_OK; } - - else + else /* All other opcodes */ { - /* Return a failure if name not found */ - - InterpreterMode = ACPI_IMODE_EXECUTE; - } + /* + * Differentiate between a namespace "create" operation + * versus a "lookup" operation (IMODE_LOAD_PASS2 vs. + * IMODE_EXECUTE) in order to support the creation of + * namespace objects during the execution of control methods. + */ + ParentOp = Arg->Common.Parent; + OpInfo = AcpiPsGetOpcodeInfo (ParentOp->Common.AmlOpcode); + if ((OpInfo->Flags & AML_NSNODE) && + (ParentOp->Common.AmlOpcode != AML_INT_METHODCALL_OP) && + (ParentOp->Common.AmlOpcode != AML_REGION_OP) && + (ParentOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP)) + { + /* Enter name into namespace if not found */ - Status = AcpiNsLookup (WalkState->ScopeInfo, NameString, - ACPI_TYPE_ANY, InterpreterMode, - ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, - WalkState, - ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, &ObjDesc)); - /* - * The only case where we pass through (ignore) a NOT_FOUND - * error is for the CondRefOf opcode. - */ - if (Status == AE_NOT_FOUND) - { - if (ParentOp->Common.AmlOpcode == AML_COND_REF_OF_OP) + InterpreterMode = ACPI_IMODE_LOAD_PASS2; + } + else { - /* - * For the Conditional Reference op, it's OK if - * the name is not found; We just need a way to - * indicate this to the interpreter, set the - * object to the root - */ - ObjDesc = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, AcpiGbl_RootNode); - Status = AE_OK; + /* Return a failure if name not found */ + + InterpreterMode = ACPI_IMODE_EXECUTE; } - else + Status = AcpiNsLookup (WalkState->ScopeInfo, NameString, + ACPI_TYPE_ANY, InterpreterMode, + ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, + WalkState, + ACPI_CAST_INDIRECT_PTR (ACPI_NAMESPACE_NODE, &ObjDesc)); + /* + * The only case where we pass through (ignore) a NOT_FOUND + * error is for the CondRefOf opcode. + */ + if (Status == AE_NOT_FOUND) { - /* - * We just plain didn't find it -- which is a - * very serious error at this point - */ - Status = AE_AML_NAME_NOT_FOUND; + if (ParentOp->Common.AmlOpcode == AML_COND_REF_OF_OP) + { + /* + * For the Conditional Reference op, it's OK if + * the name is not found; We just need a way to + * indicate this to the interpreter, set the + * object to the root + */ + ObjDesc = ACPI_CAST_PTR (ACPI_OPERAND_OBJECT, AcpiGbl_RootNode); + Status = AE_OK; + } + else + { + /* + * We just plain didn't find it -- which is a + * very serious error at this point + */ + Status = AE_AML_NAME_NOT_FOUND; + } } - } - if (ACPI_FAILURE (Status)) - { - ACPI_REPORT_NSERROR (NameString, Status); + if (ACPI_FAILURE (Status)) + { + ACPI_REPORT_NSERROR (NameString, Status); + } } /* Free the namestring created above */ @@ -562,8 +579,6 @@ AcpiDsCreateOperand ( } ACPI_DEBUGGER_EXEC (AcpiDbDisplayArgumentObject (ObjDesc, WalkState)); } - - else { /* Check for null name case */ @@ -580,7 +595,6 @@ AcpiDsCreateOperand ( ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Null namepath: Arg=%p\n", Arg)); } - else { Opcode = Arg->Common.AmlOpcode; |
