1 /******************************************************************************
3 * Module Name: utglobal - Global variables for the ACPI subsystem
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2004, 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 #define _COMPONENT ACPI_UTILITIES
50 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
61 * DESCRIPTION: This function translates an ACPI exception into an ASCII string.
63 ******************************************************************************/
66 acpi_format_exception (
69 const char *exception = "UNKNOWN_STATUS_CODE";
70 acpi_status sub_status;
73 ACPI_FUNCTION_NAME ("format_exception");
76 sub_status = (status & ~AE_CODE_MASK);
78 switch (status & AE_CODE_MASK) {
79 case AE_CODE_ENVIRONMENTAL:
81 if (sub_status <= AE_CODE_ENV_MAX) {
82 exception = acpi_gbl_exception_names_env [sub_status];
87 case AE_CODE_PROGRAMMER:
89 if (sub_status <= AE_CODE_PGM_MAX) {
90 exception = acpi_gbl_exception_names_pgm [sub_status -1];
95 case AE_CODE_ACPI_TABLES:
97 if (sub_status <= AE_CODE_TBL_MAX) {
98 exception = acpi_gbl_exception_names_tbl [sub_status -1];
105 if (sub_status <= AE_CODE_AML_MAX) {
106 exception = acpi_gbl_exception_names_aml [sub_status -1];
111 case AE_CODE_CONTROL:
113 if (sub_status <= AE_CODE_CTRL_MAX) {
114 exception = acpi_gbl_exception_names_ctrl [sub_status -1];
124 return ((const char *) exception);
128 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unknown exception code: 0x%8.8X\n", status));
129 return ((const char *) exception);
133 /******************************************************************************
135 * Static global variable initialization.
137 ******************************************************************************/
140 * We want the debug switches statically initialized so they
141 * are already set when the debugger is entered.
144 /* Debug switch - level and trace mask */
146 #ifdef ACPI_DEBUG_OUTPUT
147 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
149 u32 acpi_dbg_level = ACPI_NORMAL_DEFAULT;
152 /* Debug switch - layer (component) mask */
154 u32 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT;
155 u32 acpi_gbl_nesting_level = 0;
158 /* Debugger globals */
160 u8 acpi_gbl_db_terminate_threads = FALSE;
161 u8 acpi_gbl_abort_method = FALSE;
162 u8 acpi_gbl_method_executing = FALSE;
166 u32 acpi_gbl_startup_flags = 0;
168 /* System starts uninitialized */
170 u8 acpi_gbl_shutdown = TRUE;
172 const u8 acpi_gbl_decode_to8bit [8] = {1,2,4,8,16,32,64,128};
174 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
182 const char *acpi_gbl_highest_dstate_names[4] = {
188 /* Strings supported by the _OSI predefined (internal) method */
190 const char *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS] = {
197 /******************************************************************************
201 ******************************************************************************/
205 * Predefined ACPI Names (Built-in to the Interpreter)
208 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
209 * during the initialization sequence.
211 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] =
212 { {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
213 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
214 {"_SB_", ACPI_TYPE_DEVICE, NULL},
215 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
216 {"_TZ_", ACPI_TYPE_LOCAL_SCOPE, NULL},
217 {"_REV", ACPI_TYPE_INTEGER, "2"},
218 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
219 {"_GL_", ACPI_TYPE_MUTEX, "0"},
221 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
222 {"_OSI", ACPI_TYPE_METHOD, "1"},
224 {NULL, ACPI_TYPE_ANY, NULL} /* Table terminator */
229 * Properties of the ACPI Object Types, both internal and external.
230 * The table is indexed by values of acpi_object_type
232 const u8 acpi_gbl_ns_properties[] =
234 ACPI_NS_NORMAL, /* 00 Any */
235 ACPI_NS_NORMAL, /* 01 Number */
236 ACPI_NS_NORMAL, /* 02 String */
237 ACPI_NS_NORMAL, /* 03 Buffer */
238 ACPI_NS_NORMAL, /* 04 Package */
239 ACPI_NS_NORMAL, /* 05 field_unit */
240 ACPI_NS_NEWSCOPE, /* 06 Device */
241 ACPI_NS_NORMAL, /* 07 Event */
242 ACPI_NS_NEWSCOPE, /* 08 Method */
243 ACPI_NS_NORMAL, /* 09 Mutex */
244 ACPI_NS_NORMAL, /* 10 Region */
245 ACPI_NS_NEWSCOPE, /* 11 Power */
246 ACPI_NS_NEWSCOPE, /* 12 Processor */
247 ACPI_NS_NEWSCOPE, /* 13 Thermal */
248 ACPI_NS_NORMAL, /* 14 buffer_field */
249 ACPI_NS_NORMAL, /* 15 ddb_handle */
250 ACPI_NS_NORMAL, /* 16 Debug Object */
251 ACPI_NS_NORMAL, /* 17 def_field */
252 ACPI_NS_NORMAL, /* 18 bank_field */
253 ACPI_NS_NORMAL, /* 19 index_field */
254 ACPI_NS_NORMAL, /* 20 Reference */
255 ACPI_NS_NORMAL, /* 21 Alias */
256 ACPI_NS_NORMAL, /* 22 method_alias */
257 ACPI_NS_NORMAL, /* 23 Notify */
258 ACPI_NS_NORMAL, /* 24 Address Handler */
259 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 25 Resource Desc */
260 ACPI_NS_NEWSCOPE | ACPI_NS_LOCAL, /* 26 Resource Field */
261 ACPI_NS_NEWSCOPE, /* 27 Scope */
262 ACPI_NS_NORMAL, /* 28 Extra */
263 ACPI_NS_NORMAL, /* 29 Data */
264 ACPI_NS_NORMAL /* 30 Invalid */
268 /* Hex to ASCII conversion table */
270 static const char acpi_gbl_hex_to_ascii[] =
271 {'0','1','2','3','4','5','6','7',
272 '8','9','A','B','C','D','E','F'};
274 /*****************************************************************************
276 * FUNCTION: acpi_ut_hex_to_ascii_char
278 * PARAMETERS: Integer - Contains the hex digit
279 * Position - bit position of the digit within the
282 * RETURN: Ascii character
284 * DESCRIPTION: Convert a hex digit to an ascii character
286 ****************************************************************************/
289 acpi_ut_hex_to_ascii_char (
290 acpi_integer integer,
294 return (acpi_gbl_hex_to_ascii[(integer >> position) & 0xF]);
298 /******************************************************************************
302 * NOTE: This table includes ONLY the ACPI tables that the subsystem consumes.
303 * it is NOT an exhaustive list of all possible ACPI tables. All ACPI tables
304 * that are not used by the subsystem are simply ignored.
306 * Do NOT add any table to this list that is not consumed directly by this
309 ******************************************************************************/
311 struct acpi_table_list acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES];
313 struct acpi_table_support acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES] =
315 /*********** Name, Signature, Global typed pointer Signature size, Type How many allowed?, Contains valid AML? */
317 /* RSDP 0 */ {RSDP_NAME, RSDP_SIG, NULL, sizeof (RSDP_SIG)-1, ACPI_TABLE_ROOT | ACPI_TABLE_SINGLE},
318 /* DSDT 1 */ {DSDT_SIG, DSDT_SIG, (void *) &acpi_gbl_DSDT, sizeof (DSDT_SIG)-1, ACPI_TABLE_SECONDARY| ACPI_TABLE_SINGLE | ACPI_TABLE_EXECUTABLE},
319 /* FADT 2 */ {FADT_SIG, FADT_SIG, (void *) &acpi_gbl_FADT, sizeof (FADT_SIG)-1, ACPI_TABLE_PRIMARY | ACPI_TABLE_SINGLE},
320 /* FACS 3 */ {FACS_SIG, FACS_SIG, (void *) &acpi_gbl_FACS, sizeof (FACS_SIG)-1, ACPI_TABLE_SECONDARY| ACPI_TABLE_SINGLE},
321 /* PSDT 4 */ {PSDT_SIG, PSDT_SIG, NULL, sizeof (PSDT_SIG)-1, ACPI_TABLE_PRIMARY | ACPI_TABLE_MULTIPLE | ACPI_TABLE_EXECUTABLE},
322 /* SSDT 5 */ {SSDT_SIG, SSDT_SIG, NULL, sizeof (SSDT_SIG)-1, ACPI_TABLE_PRIMARY | ACPI_TABLE_MULTIPLE | ACPI_TABLE_EXECUTABLE},
323 /* XSDT 6 */ {XSDT_SIG, XSDT_SIG, NULL, sizeof (RSDT_SIG)-1, ACPI_TABLE_ROOT | ACPI_TABLE_SINGLE},
327 /******************************************************************************
329 * Event and Hardware globals
331 ******************************************************************************/
333 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] =
335 /* Name Parent Register Register Bit Position Register Bit Mask */
337 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_TIMER_STATUS, ACPI_BITMASK_TIMER_STATUS},
338 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_BUS_MASTER_STATUS, ACPI_BITMASK_BUS_MASTER_STATUS},
339 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_STATUS},
340 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_STATUS},
341 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_STATUS},
342 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_STATUS},
343 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_WAKE_STATUS, ACPI_BITMASK_WAKE_STATUS},
345 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_TIMER_ENABLE, ACPI_BITMASK_TIMER_ENABLE},
346 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
347 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_ENABLE},
348 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
349 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_ENABLE},
350 /* ACPI_BITREG_WAKE_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 0, 0},
352 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SCI_ENABLE, ACPI_BITMASK_SCI_ENABLE},
353 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_BUS_MASTER_RLD, ACPI_BITMASK_BUS_MASTER_RLD},
354 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
355 /* ACPI_BITREG_SLEEP_TYPE_A */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_TYPE_X, ACPI_BITMASK_SLEEP_TYPE_X},
356 /* ACPI_BITREG_SLEEP_TYPE_B */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_TYPE_X, ACPI_BITMASK_SLEEP_TYPE_X},
357 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_ENABLE, ACPI_BITMASK_SLEEP_ENABLE},
359 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, ACPI_BITPOSITION_ARB_DISABLE, ACPI_BITMASK_ARB_DISABLE}
363 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] =
365 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, ACPI_BITREG_TIMER_ENABLE, ACPI_BITMASK_TIMER_STATUS, ACPI_BITMASK_TIMER_ENABLE},
366 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, ACPI_BITREG_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
367 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_ENABLE},
368 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
369 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, ACPI_BITREG_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_ENABLE},
372 /*****************************************************************************
374 * FUNCTION: acpi_ut_get_region_name
380 * DESCRIPTION: Translate a Space ID into a name string (Debug only)
382 ****************************************************************************/
384 /* Region type decoding */
386 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] =
388 /*! [Begin] no source code translation (keep these ASL Keywords as-is) */
397 /*! [End] no source code translation !*/
402 acpi_ut_get_region_name (
406 if (space_id >= ACPI_USER_REGION_BEGIN)
408 return ("user_defined_region");
411 else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS)
413 return ("invalid_space_id");
416 return ((char *) acpi_gbl_region_types[space_id]);
420 /*****************************************************************************
422 * FUNCTION: acpi_ut_get_event_name
428 * DESCRIPTION: Translate a Event ID into a name string (Debug only)
430 ****************************************************************************/
432 /* Event type decoding */
434 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] =
445 acpi_ut_get_event_name (
449 if (event_id > ACPI_EVENT_MAX)
451 return ("invalid_event_iD");
454 return ((char *) acpi_gbl_event_types[event_id]);
458 /*****************************************************************************
460 * FUNCTION: acpi_ut_get_type_name
466 * DESCRIPTION: Translate a Type ID into a name string (Debug only)
468 ****************************************************************************/
471 * Elements of acpi_gbl_ns_type_names below must match
472 * one-to-one with values of acpi_object_type
474 * The type ACPI_TYPE_ANY (Untyped) is used as a "don't care" when searching; when
475 * stored in a table it really means that we have thus far seen no evidence to
476 * indicate what type is actually going to be stored for this entry.
478 static const char acpi_gbl_bad_type[] = "UNDEFINED";
479 #define TYPE_NAME_LENGTH 12 /* Maximum length of each string */
481 static const char *acpi_gbl_ns_type_names[] = /* printable names of ACPI types */
488 /* 05 */ "field_unit",
495 /* 12 */ "Processor",
497 /* 14 */ "buffer_field",
498 /* 15 */ "ddb_handle",
499 /* 16 */ "debug_object",
500 /* 17 */ "region_field",
501 /* 18 */ "bank_field",
502 /* 19 */ "index_field",
503 /* 20 */ "Reference",
505 /* 22 */ "method_alias",
507 /* 24 */ "addr_handler",
508 /* 25 */ "resource_desc",
509 /* 26 */ "resource_fld",
518 acpi_ut_get_type_name (
519 acpi_object_type type)
522 if (type > ACPI_TYPE_INVALID)
524 return ((char *) acpi_gbl_bad_type);
527 return ((char *) acpi_gbl_ns_type_names[type]);
532 acpi_ut_get_object_type_name (
533 union acpi_operand_object *obj_desc)
538 return ("[NULL Object Descriptor]");
541 return (acpi_ut_get_type_name (ACPI_GET_OBJECT_TYPE (obj_desc)));
545 /*****************************************************************************
547 * FUNCTION: acpi_ut_get_node_name
549 * PARAMETERS: Object - A namespace node
551 * RETURN: Pointer to a string
553 * DESCRIPTION: Validate the node and return the node's ACPI name.
555 ****************************************************************************/
558 acpi_ut_get_node_name (
561 struct acpi_namespace_node *node = (struct acpi_namespace_node *) object;
566 return ("NULL NODE");
569 if (object == ACPI_ROOT_OBJECT)
571 node = acpi_gbl_root_node;
574 if (node->descriptor != ACPI_DESC_TYPE_NAMED)
579 if (!acpi_ut_valid_acpi_name (* (u32 *) node->name.ascii))
584 return (node->name.ascii);
588 /*****************************************************************************
590 * FUNCTION: acpi_ut_get_descriptor_name
592 * PARAMETERS: Object - An ACPI object
594 * RETURN: Pointer to a string
596 * DESCRIPTION: Validate object and return the descriptor type
598 ****************************************************************************/
600 static const char *acpi_gbl_desc_type_names[] = /* printable names of descriptor types */
604 /* 02 */ "State-Generic",
605 /* 03 */ "State-Update",
606 /* 04 */ "State-Package",
607 /* 05 */ "State-Control",
608 /* 06 */ "State-root_parse_scope",
609 /* 07 */ "State-parse_scope",
610 /* 08 */ "State-walk_scope",
611 /* 09 */ "State-Result",
612 /* 10 */ "State-Notify",
613 /* 11 */ "State-Thread",
622 acpi_ut_get_descriptor_name (
628 return ("NULL OBJECT");
631 if (ACPI_GET_DESCRIPTOR_TYPE (object) > ACPI_DESC_TYPE_MAX)
633 return ((char *) acpi_gbl_bad_type);
636 return ((char *) acpi_gbl_desc_type_names[ACPI_GET_DESCRIPTOR_TYPE (object)]);
641 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
643 * Strings and procedures used for debug only
646 /*****************************************************************************
648 * FUNCTION: acpi_ut_get_mutex_name
654 * DESCRIPTION: Translate a mutex ID into a name string (Debug only)
656 ****************************************************************************/
659 acpi_ut_get_mutex_name (
663 if (mutex_id > MAX_MUTEX)
665 return ("Invalid Mutex ID");
668 return (acpi_gbl_mutex_names[mutex_id]);
674 /*****************************************************************************
676 * FUNCTION: acpi_ut_valid_object_type
678 * PARAMETERS: Type - Object type to be validated
680 * RETURN: TRUE if valid object type
682 * DESCRIPTION: Validate an object type
684 ****************************************************************************/
687 acpi_ut_valid_object_type (
688 acpi_object_type type)
691 if (type > ACPI_TYPE_LOCAL_MAX)
693 /* Note: Assumes all TYPEs are contiguous (external/local) */
702 /****************************************************************************
704 * FUNCTION: acpi_ut_allocate_owner_id
706 * PARAMETERS: id_type - Type of ID (method or table)
708 * DESCRIPTION: Allocate a table or method owner id
710 ***************************************************************************/
713 acpi_ut_allocate_owner_id (
716 acpi_owner_id owner_id = 0xFFFF;
719 ACPI_FUNCTION_TRACE ("ut_allocate_owner_id");
722 if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES)))
729 case ACPI_OWNER_TYPE_TABLE:
731 owner_id = acpi_gbl_next_table_owner_id;
732 acpi_gbl_next_table_owner_id++;
734 /* Check for wraparound */
736 if (acpi_gbl_next_table_owner_id == ACPI_FIRST_METHOD_ID)
738 acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID;
739 ACPI_REPORT_WARNING (("Table owner ID wraparound\n"));
744 case ACPI_OWNER_TYPE_METHOD:
746 owner_id = acpi_gbl_next_method_owner_id;
747 acpi_gbl_next_method_owner_id++;
749 if (acpi_gbl_next_method_owner_id == ACPI_FIRST_TABLE_ID)
751 /* Check for wraparound */
753 acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID;
761 (void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
762 return_VALUE (owner_id);
766 /****************************************************************************
768 * FUNCTION: acpi_ut_init_globals
772 * DESCRIPTION: Init library globals. All globals that require specific
773 * initialization should be initialized here!
775 ***************************************************************************/
778 acpi_ut_init_globals (
784 ACPI_FUNCTION_TRACE ("ut_init_globals");
786 /* Runtime configuration */
788 acpi_gbl_create_osi_method = TRUE;
789 acpi_gbl_all_methods_serialized = FALSE;
791 /* Memory allocation and cache lists */
793 ACPI_MEMSET (acpi_gbl_memory_lists, 0, sizeof (struct acpi_memory_list) * ACPI_NUM_MEM_LISTS);
795 acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_generic_state *) NULL)->common.next), NULL);
796 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL);
797 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL);
798 acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_operand_object *) NULL)->cache.next), NULL);
799 acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].link_offset = (u16) ACPI_PTR_DIFF (&(((struct acpi_walk_state *) NULL)->next), NULL);
801 acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].object_size = sizeof (struct acpi_namespace_node);
802 acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].object_size = sizeof (union acpi_generic_state);
803 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].object_size = sizeof (struct acpi_parse_obj_common);
804 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].object_size = sizeof (struct acpi_parse_obj_named);
805 acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].object_size = sizeof (union acpi_operand_object);
806 acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].object_size = sizeof (struct acpi_walk_state);
808 acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].max_cache_depth = ACPI_MAX_STATE_CACHE_DEPTH;
809 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].max_cache_depth = ACPI_MAX_PARSE_CACHE_DEPTH;
810 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].max_cache_depth = ACPI_MAX_EXTPARSE_CACHE_DEPTH;
811 acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].max_cache_depth = ACPI_MAX_OBJECT_CACHE_DEPTH;
812 acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].max_cache_depth = ACPI_MAX_WALK_CACHE_DEPTH;
814 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].list_name = "Global Memory Allocation");
815 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].list_name = "Namespace Nodes");
816 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].list_name = "State Object Cache");
817 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].list_name = "Parse Node Cache");
818 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].list_name = "Extended Parse Node Cache");
819 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].list_name = "Operand Object Cache");
820 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].list_name = "Tree Walk Node Cache");
822 /* ACPI table structure */
824 for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++)
826 acpi_gbl_table_lists[i].next = NULL;
827 acpi_gbl_table_lists[i].count = 0;
830 /* Mutex locked flags */
832 for (i = 0; i < NUM_MUTEX; i++)
834 acpi_gbl_mutex_info[i].mutex = NULL;
835 acpi_gbl_mutex_info[i].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
836 acpi_gbl_mutex_info[i].use_count = 0;
841 acpi_gbl_gpe_xrupt_list_head = NULL;
842 acpi_gbl_gpe_fadt_blocks[0] = NULL;
843 acpi_gbl_gpe_fadt_blocks[1] = NULL;
845 /* Global notify handlers */
847 acpi_gbl_system_notify.handler = NULL;
848 acpi_gbl_device_notify.handler = NULL;
849 acpi_gbl_init_handler = NULL;
851 /* Global "typed" ACPI table pointers */
853 acpi_gbl_RSDP = NULL;
854 acpi_gbl_XSDT = NULL;
855 acpi_gbl_FACS = NULL;
856 acpi_gbl_FADT = NULL;
857 acpi_gbl_DSDT = NULL;
859 /* Global Lock support */
861 acpi_gbl_global_lock_acquired = FALSE;
862 acpi_gbl_global_lock_thread_count = 0;
863 acpi_gbl_global_lock_handle = 0;
865 /* Miscellaneous variables */
867 acpi_gbl_table_flags = ACPI_PHYSICAL_POINTER;
868 acpi_gbl_rsdp_original_location = 0;
869 acpi_gbl_cm_single_step = FALSE;
870 acpi_gbl_db_terminate_threads = FALSE;
871 acpi_gbl_shutdown = FALSE;
872 acpi_gbl_ns_lookup_count = 0;
873 acpi_gbl_ps_find_count = 0;
874 acpi_gbl_acpi_hardware_present = TRUE;
875 acpi_gbl_next_table_owner_id = ACPI_FIRST_TABLE_ID;
876 acpi_gbl_next_method_owner_id = ACPI_FIRST_METHOD_ID;
877 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
878 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
880 /* Hardware oriented */
882 acpi_gbl_events_initialized = FALSE;
886 acpi_gbl_root_node = NULL;
888 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
889 acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED;
890 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
891 acpi_gbl_root_node_struct.child = NULL;
892 acpi_gbl_root_node_struct.peer = NULL;
893 acpi_gbl_root_node_struct.object = NULL;
894 acpi_gbl_root_node_struct.flags = ANOBJ_END_OF_PEER_LIST;
897 #ifdef ACPI_DEBUG_OUTPUT
898 acpi_gbl_lowest_stack_pointer = ACPI_SIZE_MAX;