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authorLv Zheng <lv.zheng@intel.com>2015-12-29 09:02:58 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-01-01 05:47:38 +0300
commit849c25719ac6acc7420515c7b6324f4248a13790 (patch)
tree163574cc06a6fa6ebdf5b6389162d56071bf0979 /drivers/acpi/acpica
parent1d65d9a7b642b8d1eb201830e0c1cae6231b5c51 (diff)
downloadlinux-849c25719ac6acc7420515c7b6324f4248a13790.tar.xz
ACPICA: Events: Split acpi_ev_associate_reg_method() from region initialization code
ACPICA commit 87c85610250ff7141a84507f68dbc1e00f2936db This patch introduces a new region initialization function acpi_ev_associate_reg_method(), which is invoked to associate the _REG method to its related region object. Region object's default value assignments are also sorted by cleaning up the code using this new function. Lv Zheng. Link: https://github.com/acpica/acpica/commit/87c85610 Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica')
-rw-r--r--drivers/acpi/acpica/acevents.h2
-rw-r--r--drivers/acpi/acpica/evregion.c46
-rw-r--r--drivers/acpi/acpica/evrgnini.c30
-rw-r--r--drivers/acpi/acpica/excreate.c6
4 files changed, 55 insertions, 29 deletions
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 42975abf1e03..772ee3c1bdc3 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -198,6 +198,8 @@ void
acpi_ev_detach_region(union acpi_operand_object *region_obj,
u8 acpi_ns_is_locked);
+void acpi_ev_associate_reg_method(union acpi_operand_object *region_obj);
+
acpi_status
acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
acpi_adr_space_type space_id);
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 19a4e695555f..432b81080369 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -529,6 +529,52 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj,
/*******************************************************************************
*
+ * FUNCTION: acpi_ev_associate_reg_method
+ *
+ * PARAMETERS: region_obj - Region object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Find and associate _REG method to a region
+ *
+ ******************************************************************************/
+
+void acpi_ev_associate_reg_method(union acpi_operand_object *region_obj)
+{
+ acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
+ struct acpi_namespace_node *method_node;
+ struct acpi_namespace_node *node;
+ union acpi_operand_object *region_obj2;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_associate_reg_method);
+
+ region_obj2 = acpi_ns_get_secondary_object(region_obj);
+ if (!region_obj2) {
+ return_VOID;
+ }
+
+ node = region_obj->region.node->parent;
+
+ /* Find any "_REG" method associated with this region definition */
+
+ status =
+ acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
+ &method_node);
+ if (ACPI_SUCCESS(status)) {
+ /*
+ * The _REG method is optional and there can be only one per region
+ * definition. This will be executed when the handler is attached
+ * or removed
+ */
+ region_obj2->extra.method_REG = method_node;
+ }
+
+ return_VOID;
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_ev_execute_reg_method
*
* PARAMETERS: region_obj - Region object
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index 024689dadcd2..bb2e529249c7 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -507,9 +507,6 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
acpi_adr_space_type space_id;
struct acpi_namespace_node *node;
acpi_status status;
- struct acpi_namespace_node *method_node;
- acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
- union acpi_operand_object *region_obj2;
ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked);
@@ -521,35 +518,12 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
return_ACPI_STATUS(AE_OK);
}
- region_obj2 = acpi_ns_get_secondary_object(region_obj);
- if (!region_obj2) {
- return_ACPI_STATUS(AE_NOT_EXIST);
- }
+ acpi_ev_associate_reg_method(region_obj);
+ region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
node = region_obj->region.node->parent;
space_id = region_obj->region.space_id;
- /* Setup defaults */
-
- region_obj->region.handler = NULL;
- region_obj2->extra.method_REG = NULL;
- region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE);
- region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
-
- /* Find any "_REG" method associated with this region definition */
-
- status =
- acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
- &method_node);
- if (ACPI_SUCCESS(status)) {
- /*
- * The _REG method is optional and there can be only one per region
- * definition. This will be executed when the handler is attached
- * or removed
- */
- region_obj2->extra.method_REG = method_node;
- }
-
/*
* The following loop depends upon the root Node having no parent
* ie: acpi_gbl_root_node->Parent being set to NULL
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index 0f3444647f52..6a1396e313b1 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -326,9 +326,10 @@ acpi_ex_create_region(u8 * aml_start,
* Remember location in AML stream of address & length
* operands since they need to be evaluated at run time.
*/
- region_obj2 = obj_desc->common.next_object;
+ region_obj2 = acpi_ns_get_secondary_object(obj_desc);
region_obj2->extra.aml_start = aml_start;
region_obj2->extra.aml_length = aml_length;
+ region_obj2->extra.method_REG = NULL;
if (walk_state->scope_info) {
region_obj2->extra.scope_node =
walk_state->scope_info->scope.node;
@@ -342,6 +343,9 @@ acpi_ex_create_region(u8 * aml_start,
obj_desc->region.address = 0;
obj_desc->region.length = 0;
obj_desc->region.node = node;
+ obj_desc->region.handler = NULL;
+ obj_desc->common.flags &=
+ ~(AOPOBJ_SETUP_COMPLETE | AOPOBJ_OBJECT_INITIALIZED);
/* Install the new region object in the parent Node */