1 /******************************************************************************
3 * Module Name: utglobal - Global variables for the ACPI subsystem
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2006, R. Byron Moore
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
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
44 #define DEFINE_ACPI_GLOBALS
46 #include <acpi/acpi.h>
47 #include <acpi/acnamesp.h>
49 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME("utglobal")
53 /*******************************************************************************
55 * FUNCTION: acpi_format_exception
57 * PARAMETERS: Status - The acpi_status code to be formatted
59 * RETURN: A string containing the exception text. A valid pointer is
62 * DESCRIPTION: This function translates an ACPI exception into an ASCII string.
64 ******************************************************************************/
65 const char *acpi_format_exception(acpi_status status)
67 acpi_status sub_status;
68 const char *exception = NULL;
70 ACPI_FUNCTION_ENTRY();
73 * Status is composed of two parts, a "type" and an actual code
75 sub_status = (status & ~AE_CODE_MASK);
77 switch (status & AE_CODE_MASK) {
78 case AE_CODE_ENVIRONMENTAL:
80 if (sub_status <= AE_CODE_ENV_MAX) {
81 exception = acpi_gbl_exception_names_env[sub_status];
85 case AE_CODE_PROGRAMMER:
87 if (sub_status <= AE_CODE_PGM_MAX) {
89 acpi_gbl_exception_names_pgm[sub_status - 1];
93 case AE_CODE_ACPI_TABLES:
95 if (sub_status <= AE_CODE_TBL_MAX) {
97 acpi_gbl_exception_names_tbl[sub_status - 1];
103 if (sub_status <= AE_CODE_AML_MAX) {
105 acpi_gbl_exception_names_aml[sub_status - 1];
109 case AE_CODE_CONTROL:
111 if (sub_status <= AE_CODE_CTRL_MAX) {
113 acpi_gbl_exception_names_ctrl[sub_status - 1];
123 /* Exception code was not recognized */
126 "Unknown exception code: 0x%8.8X", status));
128 exception = "UNKNOWN_STATUS_CODE";
131 return (ACPI_CAST_PTR(const char, exception));
134 /*******************************************************************************
136 * Static global variable initialization.
138 ******************************************************************************/
141 * We want the debug switches statically initialized so they
142 * are already set when the debugger is entered.
145 /* Debug switch - level and trace mask */
146 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
148 /* Debug switch - layer (component) mask */
150 u32 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT | ACPI_ALL_DRIVERS;
151 u32 acpi_gbl_nesting_level = 0;
153 /* Debugger globals */
155 u8 acpi_gbl_db_terminate_threads = FALSE;
156 u8 acpi_gbl_abort_method = FALSE;
157 u8 acpi_gbl_method_executing = FALSE;
161 u32 acpi_gbl_startup_flags = 0;
163 /* System starts uninitialized */
165 u8 acpi_gbl_shutdown = TRUE;
167 const u8 acpi_gbl_decode_to8bit[8] = { 1, 2, 4, 8, 16, 32, 64, 128 };
169 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
178 const char *acpi_gbl_highest_dstate_names[4] = {
185 /*******************************************************************************
189 ******************************************************************************/
192 * Predefined ACPI Names (Built-in to the Interpreter)
195 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
196 * during the initialization sequence.
197 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
198 * perform a Notify() operation on it.
200 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
201 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
202 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
203 {"_SB_", ACPI_TYPE_DEVICE, NULL},
204 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
205 {"_TZ_", ACPI_TYPE_THERMAL, NULL},
206 {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
207 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
208 {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
210 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
211 {"_OSI", ACPI_TYPE_METHOD, (char *)1},
214 /* Table terminator */
216 {NULL, ACPI_TYPE_ANY, NULL}
220 * Properties of the ACPI Object Types, both internal and external.
221 * The table is indexed by values of acpi_object_type
223 const u8 acpi_gbl_ns_properties[] = {
224 ACPI_NS_NORMAL, /* 00 Any */
225 ACPI_NS_NORMAL, /* 01 Number */
226 ACPI_NS_NORMAL, /* 02 String */
227 ACPI_NS_NORMAL, /* 03 Buffer */
228 ACPI_NS_NORMAL, /* 04 Package */
229 ACPI_NS_NORMAL, /* 05 field_unit */
230 ACPI_NS_NEWSCOPE, /* 06 Device */
231 ACPI_NS_NORMAL, /* 07 Event */
232 ACPI_NS_NEWSCOPE, /* 08 Method */
233 ACPI_NS_NORMAL, /* 09 Mutex */
234 ACPI_NS_NORMAL, /* 10 Region */
235 ACPI_NS_NEWSCOPE, /* 11 Power */
236 ACPI_NS_NEWSCOPE, /* 12 Processor */
237 ACPI_NS_NEWSCOPE, /* 13 Thermal */
238 ACPI_NS_NORMAL, /* 14 buffer_field */
239 ACPI_NS_NORMAL, /* 15 ddb_handle */
240 ACPI_NS_NORMAL, /* 16 Debug Object */
241 ACPI_NS_NORMAL, /* 17 def_field */
242 ACPI_NS_NORMAL, /* 18 bank_field */
243 ACPI_NS_NORMAL, /* 19 index_field */
244 ACPI_NS_NORMAL, /* 20 Reference */
245 ACPI_NS_NORMAL, /* 21 Alias */
246 ACPI_NS_NORMAL, /* 22 method_alias */
247 ACPI_NS_NORMAL, /* 23 Notify */
248 ACPI_NS_NORMAL, /* 24 Address Handler */
249 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
250 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
251 ACPI_NS_NEWSCOPE, /* 27 Scope */
252 ACPI_NS_NORMAL, /* 28 Extra */
253 ACPI_NS_NORMAL, /* 29 Data */
254 ACPI_NS_NORMAL /* 30 Invalid */
257 /* Hex to ASCII conversion table */
259 static const char acpi_gbl_hex_to_ascii[] = {
260 '0', '1', '2', '3', '4', '5', '6', '7',
261 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
264 /*******************************************************************************
266 * FUNCTION: acpi_ut_hex_to_ascii_char
268 * PARAMETERS: Integer - Contains the hex digit
269 * Position - bit position of the digit within the
270 * integer (multiple of 4)
272 * RETURN: The converted Ascii character
274 * DESCRIPTION: Convert a hex digit to an Ascii character
276 ******************************************************************************/
278 char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position)
281 return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
284 /******************************************************************************
286 * Event and Hardware globals
288 ******************************************************************************/
290 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
291 /* Name Parent Register Register Bit Position Register Bit Mask */
293 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
294 ACPI_BITPOSITION_TIMER_STATUS,
295 ACPI_BITMASK_TIMER_STATUS},
296 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
297 ACPI_BITPOSITION_BUS_MASTER_STATUS,
298 ACPI_BITMASK_BUS_MASTER_STATUS},
299 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
300 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
301 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
302 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
303 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
304 ACPI_BITMASK_POWER_BUTTON_STATUS},
305 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
306 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
307 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
308 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
309 ACPI_BITPOSITION_RT_CLOCK_STATUS,
310 ACPI_BITMASK_RT_CLOCK_STATUS},
311 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
312 ACPI_BITPOSITION_WAKE_STATUS,
313 ACPI_BITMASK_WAKE_STATUS},
314 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
315 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
316 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
318 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
319 ACPI_BITPOSITION_TIMER_ENABLE,
320 ACPI_BITMASK_TIMER_ENABLE},
321 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
322 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
323 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
324 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
325 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
326 ACPI_BITMASK_POWER_BUTTON_ENABLE},
327 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
328 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
329 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
330 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
331 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
332 ACPI_BITMASK_RT_CLOCK_ENABLE},
333 /* ACPI_BITREG_WAKE_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 0, 0},
334 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
335 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
336 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
338 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
339 ACPI_BITPOSITION_SCI_ENABLE,
340 ACPI_BITMASK_SCI_ENABLE},
341 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
342 ACPI_BITPOSITION_BUS_MASTER_RLD,
343 ACPI_BITMASK_BUS_MASTER_RLD},
344 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
345 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
346 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
347 /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL,
348 ACPI_BITPOSITION_SLEEP_TYPE_X,
349 ACPI_BITMASK_SLEEP_TYPE_X},
350 /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL,
351 ACPI_BITPOSITION_SLEEP_TYPE_X,
352 ACPI_BITMASK_SLEEP_TYPE_X},
353 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
354 ACPI_BITPOSITION_SLEEP_ENABLE,
355 ACPI_BITMASK_SLEEP_ENABLE},
357 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
358 ACPI_BITPOSITION_ARB_DISABLE,
359 ACPI_BITMASK_ARB_DISABLE}
362 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
363 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
364 ACPI_BITREG_TIMER_ENABLE,
365 ACPI_BITMASK_TIMER_STATUS,
366 ACPI_BITMASK_TIMER_ENABLE},
367 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
368 ACPI_BITREG_GLOBAL_LOCK_ENABLE,
369 ACPI_BITMASK_GLOBAL_LOCK_STATUS,
370 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
371 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
372 ACPI_BITREG_POWER_BUTTON_ENABLE,
373 ACPI_BITMASK_POWER_BUTTON_STATUS,
374 ACPI_BITMASK_POWER_BUTTON_ENABLE},
375 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
376 ACPI_BITREG_SLEEP_BUTTON_ENABLE,
377 ACPI_BITMASK_SLEEP_BUTTON_STATUS,
378 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
379 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
380 ACPI_BITREG_RT_CLOCK_ENABLE,
381 ACPI_BITMASK_RT_CLOCK_STATUS,
382 ACPI_BITMASK_RT_CLOCK_ENABLE},
385 /*******************************************************************************
387 * FUNCTION: acpi_ut_get_region_name
393 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
395 ******************************************************************************/
397 /* Region type decoding */
399 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
410 char *acpi_ut_get_region_name(u8 space_id)
413 if (space_id >= ACPI_USER_REGION_BEGIN) {
414 return ("UserDefinedRegion");
415 } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) {
416 return ("InvalidSpaceId");
419 return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id]));
422 /*******************************************************************************
424 * FUNCTION: acpi_ut_get_event_name
430 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
432 ******************************************************************************/
434 /* Event type decoding */
436 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
444 char *acpi_ut_get_event_name(u32 event_id)
447 if (event_id > ACPI_EVENT_MAX) {
448 return ("InvalidEventID");
451 return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id]));
454 /*******************************************************************************
456 * FUNCTION: acpi_ut_get_type_name
462 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
464 ******************************************************************************/
467 * Elements of acpi_gbl_ns_type_names below must match
468 * one-to-one with values of acpi_object_type
470 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching;
471 * when stored in a table it really means that we have thus far seen no
472 * evidence to indicate what type is actually going to be stored for this entry.
474 static const char acpi_gbl_bad_type[] = "UNDEFINED";
476 /* Printable names of the ACPI object types */
478 static const char *acpi_gbl_ns_type_names[] = {
484 /* 05 */ "FieldUnit",
491 /* 12 */ "Processor",
493 /* 14 */ "BufferField",
494 /* 15 */ "DdbHandle",
495 /* 16 */ "DebugObject",
496 /* 17 */ "RegionField",
497 /* 18 */ "BankField",
498 /* 19 */ "IndexField",
499 /* 20 */ "Reference",
501 /* 22 */ "MethodAlias",
503 /* 24 */ "AddrHandler",
504 /* 25 */ "ResourceDesc",
505 /* 26 */ "ResourceFld",
512 char *acpi_ut_get_type_name(acpi_object_type type)
515 if (type > ACPI_TYPE_INVALID) {
516 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
519 return (ACPI_CAST_PTR(char, acpi_gbl_ns_type_names[type]));
522 char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc)
526 return ("[NULL Object Descriptor]");
529 return (acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)));
532 /*******************************************************************************
534 * FUNCTION: acpi_ut_get_node_name
536 * PARAMETERS: Object - A namespace node
538 * RETURN: Pointer to a string
540 * DESCRIPTION: Validate the node and return the node's ACPI name.
542 ******************************************************************************/
544 char *acpi_ut_get_node_name(void *object)
546 struct acpi_namespace_node *node = (struct acpi_namespace_node *)object;
548 /* Must return a string of exactly 4 characters == ACPI_NAME_SIZE */
554 /* Check for Root node */
556 if ((object == ACPI_ROOT_OBJECT) || (object == acpi_gbl_root_node)) {
560 /* Descriptor must be a namespace node */
562 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
566 /* Name must be a valid ACPI name */
568 if (!acpi_ut_valid_acpi_name(node->name.integer)) {
569 node->name.integer = acpi_ut_repair_name(node->name.integer);
572 /* Return the name */
574 return (node->name.ascii);
577 /*******************************************************************************
579 * FUNCTION: acpi_ut_get_descriptor_name
581 * PARAMETERS: Object - An ACPI object
583 * RETURN: Pointer to a string
585 * DESCRIPTION: Validate object and return the descriptor type
587 ******************************************************************************/
589 /* Printable names of object descriptor types */
591 static const char *acpi_gbl_desc_type_names[] = {
594 /* 02 */ "State-Generic",
595 /* 03 */ "State-Update",
596 /* 04 */ "State-Package",
597 /* 05 */ "State-Control",
598 /* 06 */ "State-RootParseScope",
599 /* 07 */ "State-ParseScope",
600 /* 08 */ "State-WalkScope",
601 /* 09 */ "State-Result",
602 /* 10 */ "State-Notify",
603 /* 11 */ "State-Thread",
610 char *acpi_ut_get_descriptor_name(void *object)
614 return ("NULL OBJECT");
617 if (ACPI_GET_DESCRIPTOR_TYPE(object) > ACPI_DESC_TYPE_MAX) {
618 return (ACPI_CAST_PTR(char, acpi_gbl_bad_type));
621 return (ACPI_CAST_PTR(char,
622 acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE
627 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
629 * Strings and procedures used for debug only
632 /*******************************************************************************
634 * FUNCTION: acpi_ut_get_mutex_name
636 * PARAMETERS: mutex_id - The predefined ID for this mutex.
638 * RETURN: String containing the name of the mutex. Always returns a valid
641 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
643 ******************************************************************************/
645 char *acpi_ut_get_mutex_name(u32 mutex_id)
648 if (mutex_id > ACPI_MAX_MUTEX) {
649 return ("Invalid Mutex ID");
652 return (acpi_gbl_mutex_names[mutex_id]);
656 /*******************************************************************************
658 * FUNCTION: acpi_ut_valid_object_type
660 * PARAMETERS: Type - Object type to be validated
662 * RETURN: TRUE if valid object type, FALSE otherwise
664 * DESCRIPTION: Validate an object type
666 ******************************************************************************/
668 u8 acpi_ut_valid_object_type(acpi_object_type type)
671 if (type > ACPI_TYPE_LOCAL_MAX) {
673 /* Note: Assumes all TYPEs are contiguous (external/local) */
681 /*******************************************************************************
683 * FUNCTION: acpi_ut_init_globals
689 * DESCRIPTION: Init library globals. All globals that require specific
690 * initialization should be initialized here!
692 ******************************************************************************/
694 void acpi_ut_init_globals(void)
699 ACPI_FUNCTION_TRACE(ut_init_globals);
701 /* Create all memory caches */
703 status = acpi_ut_create_caches();
704 if (ACPI_FAILURE(status)) {
708 /* Mutex locked flags */
710 for (i = 0; i < ACPI_NUM_MUTEX; i++) {
711 acpi_gbl_mutex_info[i].mutex = NULL;
712 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
713 acpi_gbl_mutex_info[i].use_count = 0;
716 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
717 acpi_gbl_owner_id_mask[i] = 0;
719 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; /* Last ID is never valid */
723 acpi_gbl_gpe_xrupt_list_head = NULL;
724 acpi_gbl_gpe_fadt_blocks[0] = NULL;
725 acpi_gbl_gpe_fadt_blocks[1] = NULL;
727 /* Global notify handlers */
729 acpi_gbl_system_notify.handler = NULL;
730 acpi_gbl_device_notify.handler = NULL;
731 acpi_gbl_exception_handler = NULL;
732 acpi_gbl_init_handler = NULL;
734 /* Global Lock support */
736 acpi_gbl_global_lock_semaphore = NULL;
737 acpi_gbl_global_lock_mutex = NULL;
738 acpi_gbl_global_lock_acquired = FALSE;
739 acpi_gbl_global_lock_handle = 0;
741 /* Miscellaneous variables */
743 acpi_gbl_cm_single_step = FALSE;
744 acpi_gbl_db_terminate_threads = FALSE;
745 acpi_gbl_shutdown = FALSE;
746 acpi_gbl_ns_lookup_count = 0;
747 acpi_gbl_ps_find_count = 0;
748 acpi_gbl_acpi_hardware_present = TRUE;
749 acpi_gbl_last_owner_id_index = 0;
750 acpi_gbl_next_owner_id_offset = 0;
751 acpi_gbl_trace_method_name = 0;
752 acpi_gbl_trace_dbg_level = 0;
753 acpi_gbl_trace_dbg_layer = 0;
754 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
755 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
757 /* Hardware oriented */
759 acpi_gbl_events_initialized = FALSE;
760 acpi_gbl_system_awake_and_running = TRUE;
764 acpi_gbl_root_node = NULL;
765 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
766 acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
767 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
768 acpi_gbl_root_node_struct.child = NULL;
769 acpi_gbl_root_node_struct.peer = NULL;
770 acpi_gbl_root_node_struct.object = NULL;
771 acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
773 #ifdef ACPI_DEBUG_OUTPUT
774 acpi_gbl_lowest_stack_pointer = ACPI_SIZE_MAX;
780 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
781 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)