ACPI_STATUS
AcpiNsParseTable (
UINT32 TableIndex,
ACPI_NAMESPACE_NODE *StartNode)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (NsParseTable);
/*
* Executes the AML table as one large control method.
* The point of this is to execute any module-level code in-place
* as the table is parsed. Some AML code depends on this behavior.
*
* Note: This causes the table to only have a single-pass parse.
* However, this is compatible with other ACPI implementations.
*/
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_PARSE,
"%s: **** Start table execution pass\n", ACPI_GET_FUNCTION_NAME));
Status = AcpiNsExecuteTable (TableIndex, StartNode);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiNsParseTable (
UINT32 TableIndex,
ACPI_NAMESPACE_NODE *StartNode)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (NsParseTable);
if (AcpiGbl_ExecuteTablesAsMethods)
{
/*
* This case executes the AML table as one large control method.
* The point of this is to execute any module-level code in-place
* as the table is parsed. Some AML code depends on this behavior.
*
* It is a run-time option at this time, but will eventually become
* the default.
*
* Note: This causes the table to only have a single-pass parse.
* However, this is compatible with other ACPI implementations.
*/
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_PARSE,
"%s: **** Start table execution pass\n", ACPI_GET_FUNCTION_NAME));
Status = AcpiNsExecuteTable (TableIndex, StartNode);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
else
{
/*
* AML Parse, pass 1
*
* In this pass, we load most of the namespace. Control methods
* are not parsed until later. A parse tree is not created.
* Instead, each Parser Op subtree is deleted when it is finished.
* This saves a great deal of memory, and allows a small cache of
* parse objects to service the entire parse. The second pass of
* the parse then performs another complete parse of the AML.
*/
ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Start pass 1\n"));
Status = AcpiNsOneCompleteParse (ACPI_IMODE_LOAD_PASS1,
TableIndex, StartNode);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* AML Parse, pass 2
*
* In this pass, we resolve forward references and other things
* that could not be completed during the first pass.
* Another complete parse of the AML is performed, but the
* overhead of this is compensated for by the fact that the
* parse objects are all cached.
*/
ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Start pass 2\n"));
Status = AcpiNsOneCompleteParse (ACPI_IMODE_LOAD_PASS2,
TableIndex, StartNode);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
return_ACPI_STATUS (Status);
}
