1 files changed, 145 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index 5f56fc49021e..77120ec9ea86 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -102,6 +102,151 @@ static void acpi_ut_free_gpe_lists(void)
 }
 #endif                          /* !ACPI_REDUCED_HARDWARE */
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_init_globals
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Initialize ACPICA globals. All globals that require specific
+ *              initialization should be initialized here. This allows for
+ *              a warm restart.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_init_globals(void)
+{
+        acpi_status status;
+        u32 i;
+
+        ACPI_FUNCTION_TRACE(ut_init_globals);
+
+        /* Create all memory caches */
+
+        status = acpi_ut_create_caches();
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
+        /* Address Range lists */
+
+        for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) {
+                acpi_gbl_address_range_list[i] = NULL;
+        }
+
+        /* Mutex locked flags */
+
+        for (i = 0; i < ACPI_NUM_MUTEX; i++) {
+                acpi_gbl_mutex_info[i].mutex = NULL;
+                acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+                acpi_gbl_mutex_info[i].use_count = 0;
+        }
+
+        for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
+                acpi_gbl_owner_id_mask[i] = 0;
+        }
+
+        /* Last owner_ID is never valid */
+
+        acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
+
+        /* Event counters */
+
+        acpi_method_count = 0;
+        acpi_sci_count = 0;
+        acpi_gpe_count = 0;
+
+        for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
+                acpi_fixed_event_count[i] = 0;
+        }
+
+#if (!ACPI_REDUCED_HARDWARE)
+
+        /* GPE/SCI support */
+
+        acpi_gbl_all_gpes_initialized = FALSE;
+        acpi_gbl_gpe_xrupt_list_head = NULL;
+        acpi_gbl_gpe_fadt_blocks[0] = NULL;
+        acpi_gbl_gpe_fadt_blocks[1] = NULL;
+        acpi_current_gpe_count = 0;
+
+        acpi_gbl_global_event_handler = NULL;
+        acpi_gbl_sci_handler_list = NULL;
+
+#endif                          /* !ACPI_REDUCED_HARDWARE */
+
+        /* Global handlers */
+
+        acpi_gbl_global_notify[0].handler = NULL;
+        acpi_gbl_global_notify[1].handler = NULL;
+        acpi_gbl_exception_handler = NULL;
+        acpi_gbl_init_handler = NULL;
+        acpi_gbl_table_handler = NULL;
+        acpi_gbl_interface_handler = NULL;
+
+        /* Global Lock support */
+
+        acpi_gbl_global_lock_semaphore = NULL;
+        acpi_gbl_global_lock_mutex = NULL;
+        acpi_gbl_global_lock_acquired = FALSE;
+        acpi_gbl_global_lock_handle = 0;
+        acpi_gbl_global_lock_present = FALSE;
+
+        /* Miscellaneous variables */
+
+        acpi_gbl_DSDT = NULL;
+        acpi_gbl_cm_single_step = FALSE;
+        acpi_gbl_shutdown = FALSE;
+        acpi_gbl_ns_lookup_count = 0;
+        acpi_gbl_ps_find_count = 0;
+        acpi_gbl_acpi_hardware_present = TRUE;
+        acpi_gbl_last_owner_id_index = 0;
+        acpi_gbl_next_owner_id_offset = 0;
+        acpi_gbl_trace_dbg_level = 0;
+        acpi_gbl_trace_dbg_layer = 0;
+        acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
+        acpi_gbl_osi_mutex = NULL;
+        acpi_gbl_reg_methods_executed = FALSE;
+
+        /* Hardware oriented */
+
+        acpi_gbl_events_initialized = FALSE;
+        acpi_gbl_system_awake_and_running = TRUE;
+
+        /* Namespace */
+
+        acpi_gbl_module_code_list = NULL;
+        acpi_gbl_root_node = NULL;
+        acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
+        acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
+        acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
+        acpi_gbl_root_node_struct.parent = NULL;
+        acpi_gbl_root_node_struct.child = NULL;
+        acpi_gbl_root_node_struct.peer = NULL;
+        acpi_gbl_root_node_struct.object = NULL;
+
+#ifdef ACPI_DISASSEMBLER
+        acpi_gbl_external_list = NULL;
+        acpi_gbl_num_external_methods = 0;
+        acpi_gbl_resolved_external_methods = 0;
+#endif
+
+#ifdef ACPI_DEBUG_OUTPUT
+        acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
+#endif
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+        acpi_gbl_display_final_mem_stats = FALSE;
+        acpi_gbl_disable_mem_tracking = FALSE;
+#endif
+
+        ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = FALSE);
+
+        return_ACPI_STATUS(AE_OK);
+}
+
 /******************************************************************************
  *
  * FUNCTION:    acpi_ut_terminate