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>

1 files changed, 20 insertions, 9 deletions

diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c
index 8ab9d1b29a4c..ec68c1df3932 100644
--- a/drivers/acpi/dispatcher/dswload.c
+++ b/drivers/acpi/dispatcher/dswload.c
@@ -443,6 +443,15 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
                         if (ACPI_FAILURE(status)) {
                                 return_ACPI_STATUS(status);
                         }
+                } else if (op->common.aml_opcode == AML_DATA_REGION_OP) {
+                        status =
+                            acpi_ex_create_region(op->named.data,
+                                                  op->named.length,
+                                                  REGION_DATA_TABLE,
+                                                  walk_state);
+                        if (ACPI_FAILURE(status)) {
+                                return_ACPI_STATUS(status);
+                        }
                 }
         }
 #endif
@@ -823,6 +832,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
         struct acpi_namespace_node *new_node;
 #ifndef ACPI_NO_METHOD_EXECUTION
         u32 i;
+        u8 region_space;
 #endif
 
         ACPI_FUNCTION_TRACE(ds_load2_end_op);
@@ -1003,11 +1013,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
                         status = acpi_ex_create_event(walk_state);
                         break;
 
-                case AML_DATA_REGION_OP:
-
-                        status = acpi_ex_create_table_region(walk_state);
-                        break;
-
                 case AML_ALIAS_OP:
 
                         status = acpi_ex_create_alias(walk_state);
@@ -1035,6 +1040,15 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
                 switch (op->common.aml_opcode) {
 #ifndef ACPI_NO_METHOD_EXECUTION
                 case AML_REGION_OP:
+                case AML_DATA_REGION_OP:
+
+                        if (op->common.aml_opcode == AML_REGION_OP) {
+                                region_space = (acpi_adr_space_type)
+                                    ((op->common.value.arg)->common.value.
+                                     integer);
+                        } else {
+                                region_space = REGION_DATA_TABLE;
+                        }
 
                         /*
                          * If we are executing a method, initialize the region
@@ -1043,10 +1057,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
                                 status =
                                     acpi_ex_create_region(op->named.data,
                                                           op->named.length,
-                                                          (acpi_adr_space_type)
-                                                          ((op->common.value.
-                                                            arg)->common.value.
-                                                           integer),
+                                                          region_space,
                                                           walk_state);
                                 if (ACPI_FAILURE(status)) {
                                         return (status);