ACPICA: Add additional module-level code support
This change will execute module-level code that is not at the
root of the namespace (under a Device object, etc.).
ACPICA BZ 762.
http://www.acpica.org/bugzilla/show_bug.cgi?id=762
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c
index cd7995b..0988e4a 100644
--- a/drivers/acpi/acpica/psloop.c
+++ b/drivers/acpi/acpica/psloop.c
@@ -87,7 +87,8 @@
union acpi_parse_object *op, acpi_status status);
static void
-acpi_ps_link_module_code(u8 *aml_start, u32 aml_length, acpi_owner_id owner_id);
+acpi_ps_link_module_code(union acpi_parse_object *parent_op,
+ u8 *aml_start, u32 aml_length, acpi_owner_id owner_id);
/*******************************************************************************
*
@@ -479,11 +480,14 @@
*/
if (walk_state->pass_number ==
ACPI_IMODE_LOAD_PASS1) {
- acpi_ps_link_module_code(aml_op_start,
- walk_state->
+ acpi_ps_link_module_code(op->common.
+ parent,
+ aml_op_start,
+ (u32)
+ (walk_state->
parser_state.
pkg_end -
- aml_op_start,
+ aml_op_start),
walk_state->
owner_id);
}
@@ -598,7 +602,8 @@
*
* FUNCTION: acpi_ps_link_module_code
*
- * PARAMETERS: aml_start - Pointer to the AML
+ * PARAMETERS: parent_op - Parent parser op
+ * aml_start - Pointer to the AML
* aml_length - Length of executable AML
* owner_id - owner_id of module level code
*
@@ -611,11 +616,13 @@
******************************************************************************/
static void
-acpi_ps_link_module_code(u8 *aml_start, u32 aml_length, acpi_owner_id owner_id)
+acpi_ps_link_module_code(union acpi_parse_object *parent_op,
+ u8 *aml_start, u32 aml_length, acpi_owner_id owner_id)
{
union acpi_operand_object *prev;
union acpi_operand_object *next;
union acpi_operand_object *method_obj;
+ struct acpi_namespace_node *parent_node;
/* Get the tail of the list */
@@ -639,11 +646,24 @@
return;
}
+ if (parent_op->common.node) {
+ parent_node = parent_op->common.node;
+ } else {
+ parent_node = acpi_gbl_root_node;
+ }
+
method_obj->method.aml_start = aml_start;
method_obj->method.aml_length = aml_length;
method_obj->method.owner_id = owner_id;
method_obj->method.flags |= AOPOBJ_MODULE_LEVEL;
+ /*
+ * Save the parent node in next_object. This is cheating, but we
+ * don't want to expand the method object.
+ */
+ method_obj->method.next_object =
+ ACPI_CAST_PTR(union acpi_operand_object, parent_node);
+
if (!prev) {
acpi_gbl_module_code_list = method_obj;
} else {