ACPICA: Implemented full support for deferred execution for the TermArg string arguments for DataTableRegion

This enables forward references and full operand resolution for
the three string arguments. Similar to OperationRegion deferred
argument execution.)

http://www.acpica.org/bugzilla/show_bug.cgi?id=430

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 6 insertions, 4 deletions

diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c
index 4348b0530398..a079975f671f 100644
--- a/drivers/acpi/parser/psloop.c
+++ b/drivers/acpi/parser/psloop.c
@@ -242,7 +242,8 @@ acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
         acpi_ps_append_arg(*op, unnamed_op->common.value.arg);
         acpi_gbl_depth++;
 
-        if ((*op)->common.aml_opcode == AML_REGION_OP) {
+        if ((*op)->common.aml_opcode == AML_REGION_OP ||
+            (*op)->common.aml_opcode == AML_DATA_REGION_OP) {
                 /*
                  * Defer final parsing of an operation_region body, because we don't
                  * have enough info in the first pass to parse it correctly (i.e.,
@@ -1013,7 +1014,8 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state)
                                 acpi_gbl_depth--;
                         }
 
-                        if (op->common.aml_opcode == AML_REGION_OP) {
+                        if (op->common.aml_opcode == AML_REGION_OP ||
+                            op->common.aml_opcode == AML_DATA_REGION_OP) {
                                 /*
                                  * Skip parsing of control method or opregion body,
                                  * because we don't have enough info in the first pass
diff --git a/drivers/acpi/parser/psopcode.c b/drivers/acpi/parser/psopcode.c
index 153621d0c464..b273a0a127e6 100644
--- a/drivers/acpi/parser/psopcode.c
+++ b/drivers/acpi/parser/psopcode.c
@@ -624,9 +624,9 @@ const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
                  AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R),
 /* 7C */ ACPI_OP("DataTableRegion", ARGP_DATA_REGION_OP,
                  ARGI_DATA_REGION_OP, ACPI_TYPE_REGION,
-                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
                  AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                 AML_NSNODE | AML_NAMED),
+                 AML_NSNODE | AML_NAMED | AML_DEFER),
 /* 7D */ ACPI_OP("[EvalSubTree]", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
                  ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
                  AML_TYPE_NAMED_NO_OBJ,