1 /******************************************************************************
3 * Module Name: utglobal - Global variables for the ACPI subsystem
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2008, Intel Corp.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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41 * POSSIBILITY OF SUCH DAMAGES.
44 #define DEFINE_ACPI_GLOBALS
46 #include <acpi/acpi.h>
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME("utglobal")
53 /*******************************************************************************
55 * Static global variable initialization.
57 ******************************************************************************/
59 * We want the debug switches statically initialized so they
60 * are already set when the debugger is entered.
62 /* Debug switch - level and trace mask */
63 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
65 /* Debug switch - layer (component) mask */
67 u32 acpi_dbg_layer = 0;
68 u32 acpi_gbl_nesting_level = 0;
70 /* Debugger globals */
72 u8 acpi_gbl_db_terminate_threads = FALSE;
73 u8 acpi_gbl_abort_method = FALSE;
74 u8 acpi_gbl_method_executing = FALSE;
78 u32 acpi_gbl_startup_flags = 0;
80 /* System starts uninitialized */
82 u8 acpi_gbl_shutdown = TRUE;
84 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
93 const char *acpi_gbl_highest_dstate_names[4] = {
100 /*******************************************************************************
102 * FUNCTION: acpi_format_exception
104 * PARAMETERS: Status - The acpi_status code to be formatted
106 * RETURN: A string containing the exception text. A valid pointer is
109 * DESCRIPTION: This function translates an ACPI exception into an ASCII string
110 * It is here instead of utxface.c so it is always present.
112 ******************************************************************************/
114 const char *acpi_format_exception(acpi_status status)
116 const char *exception = NULL;
118 ACPI_FUNCTION_ENTRY();
120 exception = acpi_ut_validate_exception(status);
123 /* Exception code was not recognized */
126 "Unknown exception code: 0x%8.8X", status));
128 exception = "UNKNOWN_STATUS_CODE";
132 return (ACPI_CAST_PTR(const char, exception));
135 ACPI_EXPORT_SYMBOL(acpi_format_exception)
137 /*******************************************************************************
141 ******************************************************************************/
143 * Predefined ACPI Names (Built-in to the Interpreter)
146 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
147 * during the initialization sequence.
148 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
149 * perform a Notify() operation on it.
151 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
152 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
153 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
154 {"_SB_", ACPI_TYPE_DEVICE, NULL},
155 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
156 {"_TZ_", ACPI_TYPE_THERMAL, NULL},
157 {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
158 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
159 {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
161 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
162 {"_OSI", ACPI_TYPE_METHOD, (char *)1},
165 /* Table terminator */
167 {NULL, ACPI_TYPE_ANY, NULL}
171 * Properties of the ACPI Object Types, both internal and external.
172 * The table is indexed by values of acpi_object_type
174 const u8 acpi_gbl_ns_properties[] = {
175 ACPI_NS_NORMAL, /* 00 Any */
176 ACPI_NS_NORMAL, /* 01 Number */
177 ACPI_NS_NORMAL, /* 02 String */
178 ACPI_NS_NORMAL, /* 03 Buffer */
179 ACPI_NS_NORMAL, /* 04 Package */
180 ACPI_NS_NORMAL, /* 05 field_unit */
181 ACPI_NS_NEWSCOPE, /* 06 Device */
182 ACPI_NS_NORMAL, /* 07 Event */
183 ACPI_NS_NEWSCOPE, /* 08 Method */
184 ACPI_NS_NORMAL, /* 09 Mutex */
185 ACPI_NS_NORMAL, /* 10 Region */
186 ACPI_NS_NEWSCOPE, /* 11 Power */
187 ACPI_NS_NEWSCOPE, /* 12 Processor */
188 ACPI_NS_NEWSCOPE, /* 13 Thermal */
189 ACPI_NS_NORMAL, /* 14 buffer_field */
190 ACPI_NS_NORMAL, /* 15 ddb_handle */
191 ACPI_NS_NORMAL, /* 16 Debug Object */
192 ACPI_NS_NORMAL, /* 17 def_field */
193 ACPI_NS_NORMAL, /* 18 bank_field */
194 ACPI_NS_NORMAL, /* 19 index_field */
195 ACPI_NS_NORMAL, /* 20 Reference */
196 ACPI_NS_NORMAL, /* 21 Alias */
197 ACPI_NS_NORMAL, /* 22 method_alias */
198 ACPI_NS_NORMAL, /* 23 Notify */
199 ACPI_NS_NORMAL, /* 24 Address Handler */
200 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
201 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
202 ACPI_NS_NEWSCOPE, /* 27 Scope */
203 ACPI_NS_NORMAL, /* 28 Extra */
204 ACPI_NS_NORMAL, /* 29 Data */
205 ACPI_NS_NORMAL /* 30 Invalid */
208 /* Hex to ASCII conversion table */
210 static const char acpi_gbl_hex_to_ascii[] = {
211 '0', '1', '2', '3', '4', '5', '6', '7',
212 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
215 /*******************************************************************************
217 * FUNCTION: acpi_ut_hex_to_ascii_char
219 * PARAMETERS: Integer - Contains the hex digit
220 * Position - bit position of the digit within the
221 * integer (multiple of 4)
223 * RETURN: The converted Ascii character
225 * DESCRIPTION: Convert a hex digit to an Ascii character
227 ******************************************************************************/
229 char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
232 return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
235 /******************************************************************************
237 * Event and Hardware globals
239 ******************************************************************************/
241 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
242 /* Name Parent Register Register Bit Position Register Bit Mask */
244 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
245 ACPI_BITPOSITION_TIMER_STATUS,
246 ACPI_BITMASK_TIMER_STATUS},
247 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
248 ACPI_BITPOSITION_BUS_MASTER_STATUS,
249 ACPI_BITMASK_BUS_MASTER_STATUS},
250 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
251 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
252 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
253 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
254 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
255 ACPI_BITMASK_POWER_BUTTON_STATUS},
256 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
257 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
258 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
259 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
260 ACPI_BITPOSITION_RT_CLOCK_STATUS,
261 ACPI_BITMASK_RT_CLOCK_STATUS},
262 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
263 ACPI_BITPOSITION_WAKE_STATUS,
264 ACPI_BITMASK_WAKE_STATUS},
265 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
266 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
267 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
269 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
270 ACPI_BITPOSITION_TIMER_ENABLE,
271 ACPI_BITMASK_TIMER_ENABLE},
272 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
273 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
274 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
275 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
276 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
277 ACPI_BITMASK_POWER_BUTTON_ENABLE},
278 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
279 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
280 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
281 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
282 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
283 ACPI_BITMASK_RT_CLOCK_ENABLE},
284 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
285 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
286 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
288 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
289 ACPI_BITPOSITION_SCI_ENABLE,
290 ACPI_BITMASK_SCI_ENABLE},
291 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
292 ACPI_BITPOSITION_BUS_MASTER_RLD,
293 ACPI_BITMASK_BUS_MASTER_RLD},
294 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
295 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
296 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
297 /* ACPI_BITREG_SLEEP_TYPE */ {ACPI_REGISTER_PM1_CONTROL,
298 ACPI_BITPOSITION_SLEEP_TYPE,
299 ACPI_BITMASK_SLEEP_TYPE},
300 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
301 ACPI_BITPOSITION_SLEEP_ENABLE,
302 ACPI_BITMASK_SLEEP_ENABLE},
304 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
305 ACPI_BITPOSITION_ARB_DISABLE,
306 ACPI_BITMASK_ARB_DISABLE}
309 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
310 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
311 ACPI_BITREG_TIMER_ENABLE,
312 ACPI_BITMASK_TIMER_STATUS,
313 ACPI_BITMASK_TIMER_ENABLE},
314 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
315 ACPI_BITREG_GLOBAL_LOCK_ENABLE,
316 ACPI_BITMASK_GLOBAL_LOCK_STATUS,
317 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
318 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
319 ACPI_BITREG_POWER_BUTTON_ENABLE,
320 ACPI_BITMASK_POWER_BUTTON_STATUS,
321 ACPI_BITMASK_POWER_BUTTON_ENABLE},
322 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
323 ACPI_BITREG_SLEEP_BUTTON_ENABLE,
324 ACPI_BITMASK_SLEEP_BUTTON_STATUS,
325 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
326 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
327 ACPI_BITREG_RT_CLOCK_ENABLE,
328 ACPI_BITMASK_RT_CLOCK_STATUS,
329 ACPI_BITMASK_RT_CLOCK_ENABLE},
332 /*******************************************************************************
334 * FUNCTION: acpi_ut_get_region_name
340 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
342 ******************************************************************************/
344 /* Region type decoding */
346 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
357 char *acpi_ut_get_region_name(u8 space_id)
360 if (space_id >= ACPI_USER_REGION_BEGIN) {
361 return ("UserDefinedRegion");
362 } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
363 return ("InvalidSpaceId");
366 return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
369 /*******************************************************************************
371 * FUNCTION: acpi_ut_get_event_name
377 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
379 ******************************************************************************/
381 /* Event type decoding */
383 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
391 char *acpi_ut_get_event_name(u32 event_id)
394 if (event_id > ACPI_EVENT_MAX) {
395 return ("InvalidEventID");
398 return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
401 /*******************************************************************************
403 * FUNCTION: acpi_ut_get_type_name
409 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
411 ******************************************************************************/
414 * Elements of acpi_gbl_ns_type_names below must match
415 * one-to-one with values of acpi_object_type
417 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
418 * when stored in a table it really means that we have thus far seen no
419 * evidence to indicate what type is actually going to be stored for this entry.
421 static const char acpi_gbl_bad_type[] = "UNDEFINED";
423 /* Printable names of the ACPI object types */
425 static const char *acpi_gbl_ns_type_names[] = {
431 /* 05 */ "FieldUnit",
438 /* 12 */ "Processor",
440 /* 14 */ "BufferField",
441 /* 15 */ "DdbHandle",
442 /* 16 */ "DebugObject",
443 /* 17 */ "RegionField",
444 /* 18 */ "BankField",
445 /* 19 */ "IndexField",
446 /* 20 */ "Reference",
448 /* 22 */ "MethodAlias",
450 /* 24 */ "AddrHandler",
451 /* 25 */ "ResourceDesc",
452 /* 26 */ "ResourceFld",
459 char *acpi_ut_get_type_name(acpi_object_type type)
462 if (type > ACPI_TYPE_INVALID) {
463 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
466 return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
469 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
473 return ("[NULL Object Descriptor]");
476 return (acpi_ut_get_type_name(obj_desc->common.type));
479 /*******************************************************************************
481 * FUNCTION: acpi_ut_get_node_name
483 * PARAMETERS: Object - A namespace node
485 * RETURN: Pointer to a string
487 * DESCRIPTION: Validate the node and return the node's ACPI name.
489 ******************************************************************************/
491 char *acpi_ut_get_node_name(void *object)
493 struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
495 /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
501 /* Check for Root node */
503 if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
507 /* Descriptor must be a namespace node */
509 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
513 /* Name must be a valid ACPI name */
515 if (!acpi_ut_valid_acpi_name(node->name.integer)) {
516 node->name.integer = acpi_ut_repair_name(node->name.ascii);
519 /* Return the name */
521 return (node->name.ascii);
524 /*******************************************************************************
526 * FUNCTION: acpi_ut_get_descriptor_name
528 * PARAMETERS: Object - An ACPI object
530 * RETURN: Pointer to a string
532 * DESCRIPTION: Validate object and return the descriptor type
534 ******************************************************************************/
536 /* Printable names of object descriptor types */
538 static const char *acpi_gbl_desc_type_names[] = {
541 /* 02 */ "State-Generic",
542 /* 03 */ "State-Update",
543 /* 04 */ "State-Package",
544 /* 05 */ "State-Control",
545 /* 06 */ "State-RootParseScope",
546 /* 07 */ "State-ParseScope",
547 /* 08 */ "State-WalkScope",
548 /* 09 */ "State-Result",
549 /* 10 */ "State-Notify",
550 /* 11 */ "State-Thread",
557 char *acpi_ut_get_descriptor_name(void *object)
561 return ("NULL OBJECT");
564 if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
565 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
568 return (ACPI_CAST_PTR(char,
569 acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
574 /*******************************************************************************
576 * FUNCTION: acpi_ut_get_reference_name
578 * PARAMETERS: Object - An ACPI reference object
580 * RETURN: Pointer to a string
582 * DESCRIPTION: Decode a reference object sub-type to a string.
584 ******************************************************************************/
586 /* Printable names of reference object sub-types */
588 static const char *acpi_gbl_ref_class_names[] = {
593 /* 04 */ "DdbHandle",
594 /* 05 */ "Named Object",
598 const char *acpi_ut_get_reference_name(union acpi_operand_object *object)
601 return "NULL Object";
603 if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND)
604 return "Not an Operand object";
606 if (object->common.type != ACPI_TYPE_LOCAL_REFERENCE)
607 return "Not a Reference object";
609 if (object->reference.class > ACPI_REFCLASS_MAX)
610 return "Unknown Reference class";
612 return acpi_gbl_ref_class_names[object->reference.class];
615 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
617 * Strings and procedures used for debug only
620 /*******************************************************************************
622 * FUNCTION: acpi_ut_get_mutex_name
624 * PARAMETERS: mutex_id - The predefined ID for this mutex.
626 * RETURN: String containing the name of the mutex. Always returns a valid
629 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
631 ******************************************************************************/
633 char *acpi_ut_get_mutex_name(u32 mutex_id)
636 if (mutex_id > ACPI_MAX_MUTEX) {
637 return ("Invalid Mutex ID");
640 return (acpi_gbl_mutex_names[mutex_id]);
643 /*******************************************************************************
645 * FUNCTION: acpi_ut_get_notify_name
647 * PARAMETERS: notify_value - Value from the Notify() request
649 * RETURN: String corresponding to the Notify Value.
651 * DESCRIPTION: Translate a Notify Value to a notify namestring.
653 ******************************************************************************/
655 /* Names for Notify() values, used for debug output */
657 static const char *acpi_gbl_notify_value_names[] = {
662 "Device Check Light",
663 "Frequency Mismatch",
666 "Capabilities Check",
669 "System Locality Update"
672 const char *acpi_ut_get_notify_name(u32 notify_value)
675 if (notify_value <= ACPI_NOTIFY_MAX) {
676 return (acpi_gbl_notify_value_names[notify_value]);
677 } else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
679 } else { /* Greater or equal to 0x80 */
681 return ("**Device Specific**");
686 /*******************************************************************************
688 * FUNCTION: acpi_ut_valid_object_type
690 * PARAMETERS: Type - Object type to be validated
692 * RETURN: TRUE if valid object type, FALSE otherwise
694 * DESCRIPTION: Validate an object type
696 ******************************************************************************/
698 u8 acpi_ut_valid_object_type(acpi_object_type type)
701 if (type > ACPI_TYPE_LOCAL_MAX) {
703 /* Note: Assumes all TYPEs are contiguous (external/local) */
711 /*******************************************************************************
713 * FUNCTION: acpi_ut_init_globals
719 * DESCRIPTION: Init library globals. All globals that require specific
720 * initialization should be initialized here!
722 ******************************************************************************/
724 acpi_status acpi_ut_init_globals(void)
729 ACPI_FUNCTION_TRACE(ut_init_globals);
731 /* Create all memory caches */
733 status = acpi_ut_create_caches();
734 if (ACPI_FAILURE(status)) {
735 return_ACPI_STATUS(status);
738 /* Mutex locked flags */
740 for (i = 0; i < ACPI_NUM_MUTEX; i++) {
741 acpi_gbl_mutex_info[i].mutex = NULL;
742 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
743 acpi_gbl_mutex_info[i].use_count = 0;
746 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
747 acpi_gbl_owner_id_mask[i] = 0;
749 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */
753 acpi_gbl_gpe_xrupt_list_head = NULL;
754 acpi_gbl_gpe_fadt_blocks[0] = NULL;
755 acpi_gbl_gpe_fadt_blocks[1] = NULL;
756 acpi_current_gpe_count = 0;
758 /* Global handlers */
760 acpi_gbl_system_notify.handler = NULL;
761 acpi_gbl_device_notify.handler = NULL;
762 acpi_gbl_exception_handler = NULL;
763 acpi_gbl_init_handler = NULL;
764 acpi_gbl_table_handler = NULL;
766 /* Global Lock support */
768 acpi_gbl_global_lock_semaphore = NULL;
769 acpi_gbl_global_lock_mutex = NULL;
770 acpi_gbl_global_lock_acquired = FALSE;
771 acpi_gbl_global_lock_handle = 0;
772 acpi_gbl_global_lock_present = FALSE;
774 /* Miscellaneous variables */
776 acpi_gbl_cm_single_step = FALSE;
777 acpi_gbl_db_terminate_threads = FALSE;
778 acpi_gbl_shutdown = FALSE;
779 acpi_gbl_ns_lookup_count = 0;
780 acpi_gbl_ps_find_count = 0;
781 acpi_gbl_acpi_hardware_present = TRUE;
782 acpi_gbl_last_owner_id_index = 0;
783 acpi_gbl_next_owner_id_offset = 0;
784 acpi_gbl_trace_method_name = 0;
785 acpi_gbl_trace_dbg_level = 0;
786 acpi_gbl_trace_dbg_layer = 0;
787 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
788 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
790 /* Hardware oriented */
792 acpi_gbl_events_initialized = FALSE;
793 acpi_gbl_system_awake_and_running = TRUE;
797 acpi_gbl_root_node = NULL;
798 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
799 acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
800 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
801 acpi_gbl_root_node_struct.child = NULL;
802 acpi_gbl_root_node_struct.peer = NULL;
803 acpi_gbl_root_node_struct.object = NULL;
804 acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
806 #ifdef ACPI_DEBUG_OUTPUT
807 acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
810 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
811 acpi_gbl_display_final_mem_stats = FALSE;
814 return_ACPI_STATUS(AE_OK);
817 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
818 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
819 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
820 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)