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Diffstat (limited to 'drivers/acpi/namespace/nsload.c')
-rw-r--r--drivers/acpi/namespace/nsload.c158
1 files changed, 28 insertions, 130 deletions
diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c
index fe75d888e18..5d555f8c167 100644
--- a/drivers/acpi/namespace/nsload.c
+++ b/drivers/acpi/namespace/nsload.c
@@ -44,13 +44,12 @@
#include <acpi/acpi.h>
#include <acpi/acnamesp.h>
#include <acpi/acdispat.h>
+#include <acpi/actables.h>
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsload")
/* Local prototypes */
-static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type);
-
#ifdef ACPI_FUTURE_IMPLEMENTATION
acpi_status acpi_ns_unload_namespace(acpi_handle handle);
@@ -62,7 +61,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle);
*
* FUNCTION: acpi_ns_load_table
*
- * PARAMETERS: table_desc - Descriptor for table to be loaded
+ * PARAMETERS: table_index - Index for table to be loaded
* Node - Owning NS node
*
* RETURN: Status
@@ -72,42 +71,13 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle);
******************************************************************************/
acpi_status
-acpi_ns_load_table(struct acpi_table_desc *table_desc,
+acpi_ns_load_table(acpi_native_uint table_index,
struct acpi_namespace_node *node)
{
acpi_status status;
ACPI_FUNCTION_TRACE(ns_load_table);
- /* Check if table contains valid AML (must be DSDT, PSDT, SSDT, etc.) */
-
- if (!
- (acpi_gbl_table_data[table_desc->type].
- flags & ACPI_TABLE_EXECUTABLE)) {
-
- /* Just ignore this table */
-
- return_ACPI_STATUS(AE_OK);
- }
-
- /* Check validity of the AML start and length */
-
- if (!table_desc->aml_start) {
- ACPI_ERROR((AE_INFO, "Null AML pointer"));
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AML block at %p\n",
- table_desc->aml_start));
-
- /* Ignore table if there is no AML contained within */
-
- if (!table_desc->aml_length) {
- ACPI_WARNING((AE_INFO, "Zero-length AML block in table [%4.4s]",
- table_desc->pointer->signature));
- return_ACPI_STATUS(AE_OK);
- }
-
/*
* Parse the table and load the namespace with all named
* objects found within. Control methods are NOT parsed
@@ -117,15 +87,34 @@ acpi_ns_load_table(struct acpi_table_desc *table_desc,
* to another control method, we can't continue parsing
* because we don't know how many arguments to parse next!
*/
+ status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ /* If table already loaded into namespace, just return */
+
+ if (acpi_tb_is_table_loaded(table_index)) {
+ status = AE_ALREADY_EXISTS;
+ goto unlock;
+ }
+
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"**** Loading table into namespace ****\n"));
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ status = acpi_tb_allocate_owner_id(table_index);
if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ goto unlock;
+ }
+
+ status = acpi_ns_parse_table(table_index, node->child);
+ if (ACPI_SUCCESS(status)) {
+ acpi_tb_set_table_loaded_flag(table_index, TRUE);
+ } else {
+ acpi_tb_release_owner_id(table_index);
}
- status = acpi_ns_parse_table(table_desc, node->child);
+ unlock:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
@@ -141,7 +130,7 @@ acpi_ns_load_table(struct acpi_table_desc *table_desc,
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"**** Begin Table Method Parsing and Object Initialization ****\n"));
- status = acpi_ds_initialize_objects(table_desc, node);
+ status = acpi_ds_initialize_objects(table_index, node);
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"**** Completed Table Method Parsing and Object Initialization ****\n"));
@@ -149,99 +138,7 @@ acpi_ns_load_table(struct acpi_table_desc *table_desc,
return_ACPI_STATUS(status);
}
-/*******************************************************************************
- *
- * FUNCTION: acpi_ns_load_table_by_type
- *
- * PARAMETERS: table_type - Id of the table type to load
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load an ACPI table or tables into the namespace. All tables
- * of the given type are loaded. The mechanism allows this
- * routine to be called repeatedly.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type)
-{
- u32 i;
- acpi_status status;
- struct acpi_table_desc *table_desc;
-
- ACPI_FUNCTION_TRACE(ns_load_table_by_type);
-
- status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
-
- /*
- * Table types supported are:
- * DSDT (one), SSDT/PSDT (multiple)
- */
- switch (table_type) {
- case ACPI_TABLE_ID_DSDT:
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace load: DSDT\n"));
-
- table_desc = acpi_gbl_table_lists[ACPI_TABLE_ID_DSDT].next;
-
- /* If table already loaded into namespace, just return */
-
- if (table_desc->loaded_into_namespace) {
- goto unlock_and_exit;
- }
-
- /* Now load the single DSDT */
-
- status = acpi_ns_load_table(table_desc, acpi_gbl_root_node);
- if (ACPI_SUCCESS(status)) {
- table_desc->loaded_into_namespace = TRUE;
- }
- break;
-
- case ACPI_TABLE_ID_SSDT:
- case ACPI_TABLE_ID_PSDT:
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Namespace load: %d SSDT or PSDTs\n",
- acpi_gbl_table_lists[table_type].count));
-
- /*
- * Traverse list of SSDT or PSDT tables
- */
- table_desc = acpi_gbl_table_lists[table_type].next;
- for (i = 0; i < acpi_gbl_table_lists[table_type].count; i++) {
- /*
- * Only attempt to load table into namespace if it is not
- * already loaded!
- */
- if (!table_desc->loaded_into_namespace) {
- status =
- acpi_ns_load_table(table_desc,
- acpi_gbl_root_node);
- if (ACPI_FAILURE(status)) {
- break;
- }
-
- table_desc->loaded_into_namespace = TRUE;
- }
-
- table_desc = table_desc->next;
- }
- break;
-
- default:
- status = AE_SUPPORT;
- break;
- }
-
- unlock_and_exit:
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- return_ACPI_STATUS(status);
-}
-
+#ifdef ACPI_OBSOLETE_FUNCTIONS
/*******************************************************************************
*
* FUNCTION: acpi_load_namespace
@@ -288,6 +185,7 @@ acpi_status acpi_ns_load_namespace(void)
return_ACPI_STATUS(status);
}
+#endif
#ifdef ACPI_FUTURE_IMPLEMENTATION
/*******************************************************************************
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 08:14:43 +0000