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path: root/drivers/acpi/acpica/tbdata.c
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Diffstat (limited to 'drivers/acpi/acpica/tbdata.c')
-rw-r--r--drivers/acpi/acpica/tbdata.c81
1 files changed, 47 insertions, 34 deletions
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index d9ca8c2aa2d3..82b0b5710979 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -832,9 +832,9 @@ acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
*
* FUNCTION: acpi_tb_install_and_load_table
*
- * PARAMETERS: table - Pointer to the table
- * address - Physical address of the table
+ * PARAMETERS: address - Physical address of the table
* flags - Allocation flags of the table
+ * override - Whether override should be performed
* table_index - Where table index is returned
*
* RETURN: Status
@@ -844,15 +844,13 @@ acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
******************************************************************************/
acpi_status
-acpi_tb_install_and_load_table(struct acpi_table_header *table,
- acpi_physical_address address,
+acpi_tb_install_and_load_table(acpi_physical_address address,
u8 flags, u8 override, u32 *table_index)
{
acpi_status status;
u32 i;
- acpi_owner_id owner_id;
- ACPI_FUNCTION_TRACE(acpi_load_table);
+ ACPI_FUNCTION_TRACE(tb_install_and_load_table);
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
@@ -864,45 +862,60 @@ acpi_tb_install_and_load_table(struct acpi_table_header *table,
goto unlock_and_exit;
}
- /*
- * Note: Now table is "INSTALLED", it must be validated before
- * using.
- */
- status = acpi_tb_validate_table(&acpi_gbl_root_table_list.tables[i]);
- if (ACPI_FAILURE(status)) {
- goto unlock_and_exit;
- }
+ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ status = acpi_tb_load_table(i, acpi_gbl_root_node);
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+unlock_and_exit:
+ *table_index = i;
(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
- status = acpi_ns_load_table(i, acpi_gbl_root_node);
+ return_ACPI_STATUS(status);
+}
- /* Execute any module-level code that was found in the table */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_unload_table
+ *
+ * PARAMETERS: table_index - Table index
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Unload an ACPI table
+ *
+ ******************************************************************************/
- if (!acpi_gbl_parse_table_as_term_list
- && acpi_gbl_group_module_level_code) {
- acpi_ns_exec_module_code_list();
- }
+acpi_status acpi_tb_unload_table(u32 table_index)
+{
+ acpi_status status = AE_OK;
+ struct acpi_table_header *table;
- /*
- * Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
- * responsible for discovering any new wake GPEs by running _PRW methods
- * that may have been loaded by this table.
- */
- status = acpi_tb_get_owner_id(i, &owner_id);
- if (ACPI_SUCCESS(status)) {
- acpi_ev_update_gpes(owner_id);
+ ACPI_FUNCTION_TRACE(tb_unload_table);
+
+ /* Ensure the table is still loaded */
+
+ if (!acpi_tb_is_table_loaded(table_index)) {
+ return_ACPI_STATUS(AE_NOT_EXIST);
}
/* Invoke table handler if present */
if (acpi_gbl_table_handler) {
- (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
- acpi_gbl_table_handler_context);
+ status = acpi_get_table_by_index(table_index, &table);
+ if (ACPI_SUCCESS(status)) {
+ (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD,
+ table,
+ acpi_gbl_table_handler_context);
+ }
}
- (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-unlock_and_exit:
- *table_index = i;
- (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+ /* Delete the portion of the namespace owned by this table */
+
+ status = acpi_tb_delete_namespace_by_owner(table_index);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+
+ (void)acpi_tb_release_owner_id(table_index);
+ acpi_tb_set_table_loaded_flag(table_index, FALSE);
return_ACPI_STATUS(status);
}