/*******************************************************************************
*
* FUNCTION: acpi_initialize_objects
*
* PARAMETERS: flags - Init/enable Options
*
* RETURN: Status
*
* DESCRIPTION: Completes namespace initialization by initializing device
* objects and executing AML code for Regions, buffers, etc.
*
******************************************************************************/
acpi_status __init acpi_initialize_objects(u32 flags)
{
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE(acpi_initialize_objects);
/*
* Run all _REG methods
*
* Note: Any objects accessed by the _REG methods will be automatically
* initialized, even if they contain executable AML (see the call to
* acpi_ns_initialize_objects below).
*/
if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"[Init] Executing _REG OpRegion methods\n"));
status = acpi_ev_initialize_op_regions();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
#ifdef ACPI_EXEC_APP
/*
* This call implements the "initialization file" option for acpi_exec.
* This is the precise point that we want to perform the overrides.
*/
ae_do_object_overrides();
#endif
/*
* Execute any module-level code that was detected during the table load
* phase. Although illegal since ACPI 2.0, there are many machines that
* contain this type of code. Each block of detected executable AML code
* outside of any control method is wrapped with a temporary control
* method object and placed on a global list. The methods on this list
* are executed below.
*/
acpi_ns_exec_module_code_list();
/*
* Initialize the objects that remain uninitialized. This runs the
* executable AML that may be part of the declaration of these objects:
* operation_regions, buffer_fields, Buffers, and Packages.
*/
if (!(flags & ACPI_NO_OBJECT_INIT)) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"[Init] Completing Initialization of ACPI Objects\n"));
status = acpi_ns_initialize_objects();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/*
* Initialize all device objects in the namespace. This runs the device
* _STA and _INI methods.
*/
if (!(flags & ACPI_NO_DEVICE_INIT)) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"[Init] Initializing ACPI Devices\n"));
status = acpi_ns_initialize_devices();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/*
* Empty the caches (delete the cached objects) on the assumption that
* the table load filled them up more than they will be at runtime --
* thus wasting non-paged memory.
*/
status = acpi_purge_cached_objects();
acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
return_ACPI_STATUS(status);
}
/*******************************************************************************
*
* FUNCTION: acpi_initialize_objects
*
* PARAMETERS: flags - Init/enable Options
*
* RETURN: Status
*
* DESCRIPTION: Completes namespace initialization by initializing device
* objects and executing AML code for Regions, buffers, etc.
*
******************************************************************************/
acpi_status ACPI_INIT_FUNCTION acpi_initialize_objects(u32 flags)
{
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE(acpi_initialize_objects);
#ifdef ACPI_EXEC_APP
/*
* This call implements the "initialization file" option for acpi_exec.
* This is the precise point that we want to perform the overrides.
*/
ae_do_object_overrides();
#endif
/*
* Execute any module-level code that was detected during the table load
* phase. Although illegal since ACPI 2.0, there are many machines that
* contain this type of code. Each block of detected executable AML code
* outside of any control method is wrapped with a temporary control
* method object and placed on a global list. The methods on this list
* are executed below.
*
* This case executes the module-level code for all tables only after
* all of the tables have been loaded. It is a legacy option and is
* not compatible with other ACPI implementations. See acpi_ns_load_table.
*/
if (acpi_gbl_group_module_level_code) {
acpi_ns_exec_module_code_list();
/*
* Initialize the objects that remain uninitialized. This
* runs the executable AML that may be part of the
* declaration of these objects:
* operation_regions, buffer_fields, Buffers, and Packages.
*/
if (!(flags & ACPI_NO_OBJECT_INIT)) {
status = acpi_ns_initialize_objects();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
}
/*
* Initialize all device/region objects in the namespace. This runs
* the device _STA and _INI methods and region _REG methods.
*/
if (!(flags & (ACPI_NO_DEVICE_INIT | ACPI_NO_ADDRESS_SPACE_INIT))) {
status = acpi_ns_initialize_devices(flags);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/*
* Empty the caches (delete the cached objects) on the assumption that
* the table load filled them up more than they will be at runtime --
* thus wasting non-paged memory.
*/
status = acpi_purge_cached_objects();
acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
return_ACPI_STATUS(status);
}