ACPICA: acpi_exec: fixing -fi option

Field elements listed in the init file used to be initialized after
the table load and before executing module-level code blocks. The
recent changes in module-level code mean that the table load becomes
a method execution. If fields are used within module-level code and
we are executing with -fi option, then these values are populated
after the table has finished loading. This commit changes the
initialization of objects listed in the init file so that field unit
values are populated during the table load.

Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 34 insertions, 1 deletions

diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index 7c937595dfcb..5581300927de 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -15,6 +15,10 @@
 #include "acnamesp.h"
 #include "acparser.h"
 
+#ifdef ACPI_EXEC_APP
+#include "aecommon.h"
+#endif
+
 #define _COMPONENT          ACPI_DISPATCHER
 ACPI_MODULE_NAME("dsfield")
 
@@ -259,6 +263,13 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
 	u64 position;
 	union acpi_parse_object *child;
 
+#ifdef ACPI_EXEC_APP
+	u64 value = 0;
+	union acpi_operand_object *result_desc;
+	union acpi_operand_object *obj_desc;
+	char *name_path;
+#endif
+
 	ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info);
 
 	/* First field starts at bit zero */
@@ -391,6 +402,26 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
 					if (ACPI_FAILURE(status)) {
 						return_ACPI_STATUS(status);
 					}
+#ifdef ACPI_EXEC_APP
+					name_path =
+					    acpi_ns_get_external_pathname(info->
+									  field_node);
+					obj_desc =
+					    acpi_ut_create_integer_object
+					    (value);
+					if (ACPI_SUCCESS
+					    (ae_lookup_init_file_entry
+					     (name_path, &value))) {
+						acpi_ex_write_data_to_field
+						    (obj_desc,
+						     acpi_ns_get_attached_object
+						     (info->field_node),
+						     &result_desc);
+						ACPI_FREE(name_path);
+						acpi_ut_remove_reference
+						    (obj_desc);
+					}
+#endif
 				}
 			}
 
@@ -573,7 +604,9 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
 	    !(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
 		flags |= ACPI_NS_TEMPORARY;
 	}
-
+#ifdef ACPI_EXEC_APP
+	flags |= ACPI_NS_OVERRIDE_IF_FOUND;
+#endif
 	/*
 	 * Walk the list of entries in the field_list
 	 * Note: field_list can be of zero length. In this case, Arg will be NULL.