acpi_status status;
const struct acpi_predefined_names *init_val = NULL;
struct acpi_namespace_node *new_node;
+ struct acpi_namespace_node *prev_node = NULL;
union acpi_operand_object *obj_desc;
acpi_string val = NULL;
*/
acpi_gbl_root_node = &acpi_gbl_root_node_struct;
- /* Enter the pre-defined names in the name table */
+ /* Enter the predefined names in the name table */
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Entering predefined entries into namespace\n"));
+ /*
+ * Create the initial (default) namespace.
+ * This namespace looks like something similar to this:
+ *
+ * ACPI Namespace (from Namespace Root):
+ * 0 _GPE Scope 00203160 00
+ * 0 _PR_ Scope 002031D0 00
+ * 0 _SB_ Device 00203240 00 Notify Object: 0020ADD8
+ * 0 _SI_ Scope 002032B0 00
+ * 0 _TZ_ Device 00203320 00
+ * 0 _REV Integer 00203390 00 = 0000000000000002
+ * 0 _OS_ String 00203488 00 Len 14 "Microsoft Windows NT"
+ * 0 _GL_ Mutex 00203580 00 Object 002035F0
+ * 0 _OSI Method 00203678 00 Args 1 Len 0000 Aml 00000000
+ */
for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) {
+ status = AE_OK;
/* _OSI is optional for now, will be permanent later */
continue;
}
- status =
- acpi_ns_lookup(NULL, ACPI_CAST_PTR(char, init_val->name),
- init_val->type, ACPI_IMODE_LOAD_PASS2,
- ACPI_NS_NO_UPSEARCH, NULL, &new_node);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "Could not create predefined name %s",
- init_val->name));
- continue;
+ /*
+ * Create, init, and link the new predefined name
+ * Note: No need to use acpi_ns_lookup here because all the
+ * predefined names are at the root level. It is much easier to
+ * just create and link the new node(s) here.
+ */
+ new_node =
+ ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_namespace_node));
+ if (!new_node) {
+ status = AE_NO_MEMORY;
+ goto unlock_and_exit;
}
+ ACPI_COPY_NAMESEG(new_node->name.ascii, init_val->name);
+ new_node->descriptor_type = ACPI_DESC_TYPE_NAMED;
+ new_node->type = init_val->type;
+
+ if (!prev_node) {
+ acpi_gbl_root_node_struct.child = new_node;
+ } else {
+ prev_node->peer = new_node;
+ }
+
+ new_node->parent = &acpi_gbl_root_node_struct;
+ prev_node = new_node;
+
/*
* Name entered successfully. If entry in pre_defined_names[] specifies
* an initial value, create the initial value.
new_node->value = obj_desc->method.param_count;
#else
- /* Mark this as a very SPECIAL method */
+ /* Mark this as a very SPECIAL method (_OSI) */
obj_desc->method.info_flags =
ACPI_METHOD_INTERNAL_ONLY;