static acpi_status
acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
acpi_size * obj_length)
{
acpi_status status;
struct acpi_pkg_info info;
ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object);
info.length = 0;
info.object_space = 0;
info.num_packages = 1;
status = acpi_ut_walk_package_tree(internal_object, NULL,
acpi_ut_get_element_length, &info);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
(acpi_size) info.num_packages;
*obj_length = info.length;
return_ACPI_STATUS(status);
}
acpi_status
acpi_ns_init_one_package(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
acpi_status status;
union acpi_operand_object *obj_desc;
struct acpi_namespace_node *node =
(struct acpi_namespace_node *)obj_handle;
obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
return (AE_OK);
}
/* Exit if package is already initialized */
if (obj_desc->package.flags & AOPOBJ_DATA_VALID) {
return (AE_OK);
}
status = acpi_ds_get_package_arguments(obj_desc);
if (ACPI_FAILURE(status)) {
return (AE_OK);
}
status =
acpi_ut_walk_package_tree(obj_desc, NULL,
acpi_ds_init_package_element, NULL);
if (ACPI_FAILURE(status)) {
return (AE_OK);
}
obj_desc->package.flags |= AOPOBJ_DATA_VALID;
return (AE_OK);
}
static acpi_status
acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
acpi_size * obj_length)
{
acpi_status status;
struct acpi_pkg_info info;
ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object);
info.length = 0;
info.object_space = 0;
info.num_packages = 1;
status = acpi_ut_walk_package_tree(internal_object, NULL,
acpi_ut_get_element_length, &info);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/*
* We have handled all of the objects in all levels of the package.
* just add the length of the package objects themselves.
* Round up to the next machine word.
*/
info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
(acpi_size) info.num_packages;
/* Return the total package length */
*obj_length = info.length;
return_ACPI_STATUS(status);
}
acpi_status
acpi_ut_copy_ipackage_to_ipackage (
acpi_operand_object *source_obj,
acpi_operand_object *dest_obj,
acpi_walk_state *walk_state)
{
acpi_status status = AE_OK;
FUNCTION_TRACE ("Ut_copy_ipackage_to_ipackage");
dest_obj->common.type = source_obj->common.type;
dest_obj->package.count = source_obj->package.count;
/*
* Create the object array and walk the source package tree
*/
dest_obj->package.elements = ACPI_MEM_CALLOCATE ((source_obj->package.count + 1) *
sizeof (void *));
dest_obj->package.next_element = dest_obj->package.elements;
if (!dest_obj->package.elements) {
REPORT_ERROR (
("Aml_build_copy_internal_package_object: Package allocation failure\n"));
return_ACPI_STATUS (AE_NO_MEMORY);
}
status = acpi_ut_walk_package_tree (source_obj, dest_obj,
acpi_ut_copy_ielement_to_ielement, walk_state);
return_ACPI_STATUS (status);
}
static acpi_status
acpi_ut_copy_ipackage_to_epackage (
acpi_operand_object *internal_object,
u8 *buffer,
u32 *space_used)
{
acpi_object *external_object;
acpi_status status;
acpi_pkg_info info;
FUNCTION_TRACE ("Ut_copy_ipackage_to_epackage");
/*
* First package at head of the buffer
*/
external_object = (acpi_object *) buffer;
/*
* Free space begins right after the first package
*/
info.length = 0;
info.object_space = 0;
info.num_packages = 1;
info.free_space = buffer + ROUND_UP_TO_NATIVE_WORD (sizeof (acpi_object));
external_object->type = internal_object->common.type;
external_object->package.count = internal_object->package.count;
external_object->package.elements = (acpi_object *) info.free_space;
/*
* Build an array of ACPI_OBJECTS in the buffer
* and move the free space past it
*/
info.free_space += external_object->package.count *
ROUND_UP_TO_NATIVE_WORD (sizeof (acpi_object));
status = acpi_ut_walk_package_tree (internal_object, external_object,
acpi_ut_copy_ielement_to_eelement, &info);
*space_used = info.length;
return_ACPI_STATUS (status);
}
static acpi_status
acpi_ut_copy_ipackage_to_epackage (
union acpi_operand_object *internal_object,
u8 *buffer,
acpi_size *space_used)
{
union acpi_object *external_object;
acpi_status status;
struct acpi_pkg_info info;
ACPI_FUNCTION_TRACE ("ut_copy_ipackage_to_epackage");
/*
* First package at head of the buffer
*/
external_object = ACPI_CAST_PTR (union acpi_object, buffer);
/*
* Free space begins right after the first package
*/
info.length = ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
info.free_space = buffer + ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
info.object_space = 0;
info.num_packages = 1;
external_object->type = ACPI_GET_OBJECT_TYPE (internal_object);
external_object->package.count = internal_object->package.count;
external_object->package.elements = ACPI_CAST_PTR (union acpi_object, info.free_space);
/*
* Leave room for an array of ACPI_OBJECTS in the buffer
* and move the free space past it
*/
info.length += (acpi_size) external_object->package.count *
ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
info.free_space += external_object->package.count *
ACPI_ROUND_UP_TO_NATIVE_WORD (sizeof (union acpi_object));
status = acpi_ut_walk_package_tree (internal_object, external_object,
acpi_ut_copy_ielement_to_eelement, &info);
*space_used = info.length;
return_ACPI_STATUS (status);
}
acpi_status
acpi_ut_copy_ipackage_to_ipackage (
union acpi_operand_object *source_obj,
union acpi_operand_object *dest_obj,
struct acpi_walk_state *walk_state)
{
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE ("ut_copy_ipackage_to_ipackage");
dest_obj->common.type = ACPI_GET_OBJECT_TYPE (source_obj);
dest_obj->common.flags = source_obj->common.flags;
dest_obj->package.count = source_obj->package.count;
/*
* Create the object array and walk the source package tree
*/
dest_obj->package.elements = ACPI_MEM_CALLOCATE (
((acpi_size) source_obj->package.count + 1) *
sizeof (void *));
if (!dest_obj->package.elements) {
ACPI_REPORT_ERROR (
("aml_build_copy_internal_package_object: Package allocation failure\n"));
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* Copy the package element-by-element by walking the package "tree".
* This handles nested packages of arbitrary depth.
*/
status = acpi_ut_walk_package_tree (source_obj, dest_obj,
acpi_ut_copy_ielement_to_ielement, walk_state);
if (ACPI_FAILURE (status)) {
/* On failure, delete the destination package object */
acpi_ut_remove_reference (dest_obj);
}
return_ACPI_STATUS (status);
}
static acpi_status
acpi_ns_init_one_object(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
acpi_object_type type;
acpi_status status = AE_OK;
struct acpi_init_walk_info *info =
(struct acpi_init_walk_info *)context;
struct acpi_namespace_node *node =
(struct acpi_namespace_node *)obj_handle;
union acpi_operand_object *obj_desc;
ACPI_FUNCTION_NAME(ns_init_one_object);
info->object_count++;
/* And even then, we are only interested in a few object types */
type = acpi_ns_get_type(obj_handle);
obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
return (AE_OK);
}
/* Increment counters for object types we are looking for */
switch (type) {
case ACPI_TYPE_REGION:
info->op_region_count++;
break;
case ACPI_TYPE_BUFFER_FIELD:
info->field_count++;
break;
case ACPI_TYPE_LOCAL_BANK_FIELD:
info->field_count++;
break;
case ACPI_TYPE_BUFFER:
info->buffer_count++;
break;
case ACPI_TYPE_PACKAGE:
info->package_count++;
break;
default:
/* No init required, just exit now */
return (AE_OK);
}
/* If the object is already initialized, nothing else to do */
if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
return (AE_OK);
}
/* Must lock the interpreter before executing AML code */
acpi_ex_enter_interpreter();
/*
* Each of these types can contain executable AML code within the
* declaration.
*/
switch (type) {
case ACPI_TYPE_REGION:
info->op_region_init++;
status = acpi_ds_get_region_arguments(obj_desc);
break;
case ACPI_TYPE_BUFFER_FIELD:
info->field_init++;
status = acpi_ds_get_buffer_field_arguments(obj_desc);
break;
case ACPI_TYPE_LOCAL_BANK_FIELD:
info->field_init++;
status = acpi_ds_get_bank_field_arguments(obj_desc);
break;
case ACPI_TYPE_BUFFER:
info->buffer_init++;
status = acpi_ds_get_buffer_arguments(obj_desc);
break;
case ACPI_TYPE_PACKAGE:
info->package_init++;
status = acpi_ds_get_package_arguments(obj_desc);
if (ACPI_FAILURE(status)) {
break;
}
/*
* Resolve all named references in package objects (and all
* sub-packages). This action has been deferred until the entire
* namespace has been loaded, in order to support external and
* forward references from individual package elements (05/2017).
*/
status = acpi_ut_walk_package_tree(obj_desc, NULL,
acpi_ds_init_package_element,
NULL);
obj_desc->package.flags |= AOPOBJ_DATA_VALID;
break;
default:
/* No other types can get here */
break;
}
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Could not execute arguments for [%4.4s] (%s)",
acpi_ut_get_node_name(node),
acpi_ut_get_type_name(type)));
}
/*
* We ignore errors from above, and always return OK, since we don't want
* to abort the walk on any single error.
*/
acpi_ex_exit_interpreter();
return (AE_OK);
}