1 /******************************************************************************
3 * Name: acglobal.h - Declarations for global variables
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2014, 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
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 #ifndef __ACGLOBAL_H__
45 #define __ACGLOBAL_H__
48 * Ensure that the globals are actually defined and initialized only once.
50 * The use of these macros allows a single list of globals (here) in order
51 * to simplify maintenance of the code.
53 #ifdef DEFINE_ACPI_GLOBALS
54 #define ACPI_GLOBAL(type,name) \
58 #define ACPI_INIT_GLOBAL(type,name,value) \
62 #define ACPI_GLOBAL(type,name) \
65 #define ACPI_INIT_GLOBAL(type,name,value) \
69 #ifdef DEFINE_ACPI_GLOBALS
71 /* Public globals, available from outside ACPICA subsystem */
73 /*****************************************************************************
75 * Runtime configuration (static defaults that can be overriden at runtime)
77 ****************************************************************************/
80 * Enable "slack" in the AML interpreter? Default is FALSE, and the
81 * interpreter strictly follows the ACPI specification. Setting to TRUE
82 * allows the interpreter to ignore certain errors and/or bad AML constructs.
84 * Currently, these features are enabled by this flag:
86 * 1) Allow "implicit return" of last value in a control method
87 * 2) Allow access beyond the end of an operation region
88 * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
89 * 4) Allow ANY object type to be a source operand for the Store() operator
90 * 5) Allow unresolved references (invalid target name) in package objects
91 * 6) Enable warning messages for behavior that is not ACPI spec compliant
93 ACPI_INIT_GLOBAL(u8
, acpi_gbl_enable_interpreter_slack
, FALSE
);
96 * Automatically serialize all methods that create named objects? Default
97 * is TRUE, meaning that all non_serialized methods are scanned once at
98 * table load time to determine those that create named objects. Methods
99 * that create named objects are marked Serialized in order to prevent
100 * possible run-time problems if they are entered by more than one thread.
102 ACPI_INIT_GLOBAL(u8
, acpi_gbl_auto_serialize_methods
, TRUE
);
105 * Create the predefined _OSI method in the namespace? Default is TRUE
106 * because ACPI CA is fully compatible with other ACPI implementations.
107 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
109 ACPI_INIT_GLOBAL(u8
, acpi_gbl_create_osi_method
, TRUE
);
112 * Optionally use default values for the ACPI register widths. Set this to
113 * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
115 ACPI_INIT_GLOBAL(u8
, acpi_gbl_use_default_register_widths
, TRUE
);
118 * Optionally enable output from the AML Debug Object.
120 ACPI_INIT_GLOBAL(u8
, acpi_gbl_enable_aml_debug_object
, FALSE
);
123 * Optionally copy the entire DSDT to local memory (instead of simply
124 * mapping it.) There are some BIOSs that corrupt or replace the original
125 * DSDT, creating the need for this option. Default is FALSE, do not copy
128 ACPI_INIT_GLOBAL(u8
, acpi_gbl_copy_dsdt_locally
, FALSE
);
131 * Optionally ignore an XSDT if present and use the RSDT instead.
132 * Although the ACPI specification requires that an XSDT be used instead
133 * of the RSDT, the XSDT has been found to be corrupt or ill-formed on
134 * some machines. Default behavior is to use the XSDT if present.
136 ACPI_INIT_GLOBAL(u8
, acpi_gbl_do_not_use_xsdt
, FALSE
);
139 * Optionally use 32-bit FADT addresses if and when there is a conflict
140 * (address mismatch) between the 32-bit and 64-bit versions of the
141 * address. Although ACPICA adheres to the ACPI specification which
142 * requires the use of the corresponding 64-bit address if it is non-zero,
143 * some machines have been found to have a corrupted non-zero 64-bit
144 * address. Default is TRUE, favor the 32-bit addresses.
146 ACPI_INIT_GLOBAL(u8
, acpi_gbl_use32_bit_fadt_addresses
, TRUE
);
149 * Optionally truncate I/O addresses to 16 bits. Provides compatibility
150 * with other ACPI implementations. NOTE: During ACPICA initialization,
151 * this value is set to TRUE if any Windows OSI strings have been
152 * requested by the BIOS.
154 ACPI_INIT_GLOBAL(u8
, acpi_gbl_truncate_io_addresses
, FALSE
);
157 * Disable runtime checking and repair of values returned by control methods.
158 * Use only if the repair is causing a problem on a particular machine.
160 ACPI_INIT_GLOBAL(u8
, acpi_gbl_disable_auto_repair
, FALSE
);
163 * Optionally do not load any SSDTs from the RSDT/XSDT during initialization.
164 * This can be useful for debugging ACPI problems on some machines.
166 ACPI_INIT_GLOBAL(u8
, acpi_gbl_disable_ssdt_table_load
, FALSE
);
169 * We keep track of the latest version of Windows that has been requested by
172 ACPI_INIT_GLOBAL(u8
, acpi_gbl_osi_data
, 0);
174 #endif /* DEFINE_ACPI_GLOBALS */
176 /*****************************************************************************
180 ****************************************************************************/
183 * Master list of all ACPI tables that were found in the RSDT/XSDT.
185 ACPI_GLOBAL(struct acpi_table_list
, acpi_gbl_root_table_list
);
187 /* DSDT information. Used to check for DSDT corruption */
189 ACPI_GLOBAL(struct acpi_table_header
*, acpi_gbl_DSDT
);
190 ACPI_GLOBAL(struct acpi_table_header
, acpi_gbl_original_dsdt_header
);
192 #if (!ACPI_REDUCED_HARDWARE)
193 ACPI_GLOBAL(struct acpi_table_facs
*, acpi_gbl_FACS
);
195 #endif /* !ACPI_REDUCED_HARDWARE */
197 /* These addresses are calculated from the FADT Event Block addresses */
199 ACPI_GLOBAL(struct acpi_generic_address
, acpi_gbl_xpm1a_status
);
200 ACPI_GLOBAL(struct acpi_generic_address
, acpi_gbl_xpm1a_enable
);
202 ACPI_GLOBAL(struct acpi_generic_address
, acpi_gbl_xpm1b_status
);
203 ACPI_GLOBAL(struct acpi_generic_address
, acpi_gbl_xpm1b_enable
);
206 * Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is
207 * determined by the revision of the DSDT: If the DSDT revision is less than
208 * 2, use only the lower 32 bits of the internal 64-bit Integer.
210 ACPI_GLOBAL(u8
, acpi_gbl_integer_bit_width
);
211 ACPI_GLOBAL(u8
, acpi_gbl_integer_byte_width
);
212 ACPI_GLOBAL(u8
, acpi_gbl_integer_nybble_width
);
214 /*****************************************************************************
216 * Mutual exclusion within ACPICA subsystem
218 ****************************************************************************/
221 * Predefined mutex objects. This array contains the
222 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
223 * (The table maps local handles to the real OS handles)
225 ACPI_GLOBAL(struct acpi_mutex_info
, acpi_gbl_mutex_info
[ACPI_NUM_MUTEX
]);
228 * Global lock mutex is an actual AML mutex object
229 * Global lock semaphore works in conjunction with the actual global lock
230 * Global lock spinlock is used for "pending" handshake
232 ACPI_GLOBAL(union acpi_operand_object
*, acpi_gbl_global_lock_mutex
);
233 ACPI_GLOBAL(acpi_semaphore
, acpi_gbl_global_lock_semaphore
);
234 ACPI_GLOBAL(acpi_spinlock
, acpi_gbl_global_lock_pending_lock
);
235 ACPI_GLOBAL(u16
, acpi_gbl_global_lock_handle
);
236 ACPI_GLOBAL(u8
, acpi_gbl_global_lock_acquired
);
237 ACPI_GLOBAL(u8
, acpi_gbl_global_lock_present
);
238 ACPI_GLOBAL(u8
, acpi_gbl_global_lock_pending
);
241 * Spinlocks are used for interfaces that can be possibly called at
244 ACPI_GLOBAL(acpi_spinlock
, acpi_gbl_gpe_lock
); /* For GPE data structs and registers */
245 ACPI_GLOBAL(acpi_spinlock
, acpi_gbl_hardware_lock
); /* For ACPI H/W except GPE registers */
246 ACPI_GLOBAL(acpi_spinlock
, acpi_gbl_reference_count_lock
);
248 /* Mutex for _OSI support */
250 ACPI_GLOBAL(acpi_mutex
, acpi_gbl_osi_mutex
);
252 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
254 ACPI_GLOBAL(struct acpi_rw_lock
, acpi_gbl_namespace_rw_lock
);
256 /*****************************************************************************
258 * Miscellaneous globals
260 ****************************************************************************/
264 ACPI_GLOBAL(acpi_cache_t
*, acpi_gbl_namespace_cache
);
265 ACPI_GLOBAL(acpi_cache_t
*, acpi_gbl_state_cache
);
266 ACPI_GLOBAL(acpi_cache_t
*, acpi_gbl_ps_node_cache
);
267 ACPI_GLOBAL(acpi_cache_t
*, acpi_gbl_ps_node_ext_cache
);
268 ACPI_GLOBAL(acpi_cache_t
*, acpi_gbl_operand_cache
);
272 ACPI_INIT_GLOBAL(u32
, acpi_gbl_startup_flags
, 0);
273 ACPI_INIT_GLOBAL(u8
, acpi_gbl_shutdown
, TRUE
);
275 /* Global handlers */
277 ACPI_GLOBAL(struct acpi_global_notify_handler
, acpi_gbl_global_notify
[2]);
278 ACPI_GLOBAL(acpi_exception_handler
, acpi_gbl_exception_handler
);
279 ACPI_GLOBAL(acpi_init_handler
, acpi_gbl_init_handler
);
280 ACPI_GLOBAL(acpi_table_handler
, acpi_gbl_table_handler
);
281 ACPI_GLOBAL(void *, acpi_gbl_table_handler_context
);
282 ACPI_GLOBAL(struct acpi_walk_state
*, acpi_gbl_breakpoint_walk
);
283 ACPI_GLOBAL(acpi_interface_handler
, acpi_gbl_interface_handler
);
284 ACPI_GLOBAL(struct acpi_sci_handler_info
*, acpi_gbl_sci_handler_list
);
286 /* Owner ID support */
288 ACPI_GLOBAL(u32
, acpi_gbl_owner_id_mask
[ACPI_NUM_OWNERID_MASKS
]);
289 ACPI_GLOBAL(u8
, acpi_gbl_last_owner_id_index
);
290 ACPI_GLOBAL(u8
, acpi_gbl_next_owner_id_offset
);
292 /* Initialization sequencing */
294 ACPI_GLOBAL(u8
, acpi_gbl_reg_methods_executed
);
298 ACPI_GLOBAL(u32
, acpi_gbl_original_mode
);
299 ACPI_GLOBAL(u32
, acpi_gbl_rsdp_original_location
);
300 ACPI_GLOBAL(u32
, acpi_gbl_ns_lookup_count
);
301 ACPI_GLOBAL(u32
, acpi_gbl_ps_find_count
);
302 ACPI_GLOBAL(u16
, acpi_gbl_pm1_enable_register_save
);
303 ACPI_GLOBAL(u8
, acpi_gbl_debugger_configuration
);
304 ACPI_GLOBAL(u8
, acpi_gbl_step_to_next_call
);
305 ACPI_GLOBAL(u8
, acpi_gbl_acpi_hardware_present
);
306 ACPI_GLOBAL(u8
, acpi_gbl_events_initialized
);
307 ACPI_GLOBAL(struct acpi_interface_info
*, acpi_gbl_supported_interfaces
);
308 ACPI_GLOBAL(struct acpi_address_range
*,
309 acpi_gbl_address_range_list
[ACPI_ADDRESS_RANGE_MAX
]);
311 /* Other miscellaneous, declared and initialized in utglobal */
313 extern const char *acpi_gbl_sleep_state_names
[ACPI_S_STATE_COUNT
];
314 extern const char *acpi_gbl_lowest_dstate_names
[ACPI_NUM_sx_w_METHODS
];
315 extern const char *acpi_gbl_highest_dstate_names
[ACPI_NUM_sx_d_METHODS
];
316 extern const char *acpi_gbl_region_types
[ACPI_NUM_PREDEFINED_REGIONS
];
317 extern const struct acpi_opcode_info acpi_gbl_aml_op_info
[AML_NUM_OPCODES
];
319 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
321 /* Lists for tracking memory allocations (debug only) */
323 ACPI_GLOBAL(struct acpi_memory_list
*, acpi_gbl_global_list
);
324 ACPI_GLOBAL(struct acpi_memory_list
*, acpi_gbl_ns_node_list
);
325 ACPI_GLOBAL(u8
, acpi_gbl_display_final_mem_stats
);
326 ACPI_GLOBAL(u8
, acpi_gbl_disable_mem_tracking
);
329 /*****************************************************************************
333 ****************************************************************************/
335 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
336 #define NUM_PREDEFINED_NAMES 10
338 #define NUM_PREDEFINED_NAMES 9
341 ACPI_GLOBAL(struct acpi_namespace_node
, acpi_gbl_root_node_struct
);
342 ACPI_GLOBAL(struct acpi_namespace_node
*, acpi_gbl_root_node
);
343 ACPI_GLOBAL(struct acpi_namespace_node
*, acpi_gbl_fadt_gpe_device
);
344 ACPI_GLOBAL(union acpi_operand_object
*, acpi_gbl_module_code_list
);
346 extern const u8 acpi_gbl_ns_properties
[ACPI_NUM_NS_TYPES
];
347 extern const struct acpi_predefined_names
348 acpi_gbl_pre_defined_names
[NUM_PREDEFINED_NAMES
];
350 #ifdef ACPI_DEBUG_OUTPUT
351 ACPI_GLOBAL(u32
, acpi_gbl_current_node_count
);
352 ACPI_GLOBAL(u32
, acpi_gbl_current_node_size
);
353 ACPI_GLOBAL(u32
, acpi_gbl_max_concurrent_node_count
);
354 ACPI_GLOBAL(acpi_size
*, acpi_gbl_entry_stack_pointer
);
355 ACPI_GLOBAL(acpi_size
*, acpi_gbl_lowest_stack_pointer
);
356 ACPI_GLOBAL(u32
, acpi_gbl_deepest_nesting
);
357 ACPI_INIT_GLOBAL(u32
, acpi_gbl_nesting_level
, 0);
360 /*****************************************************************************
362 * Interpreter globals
364 ****************************************************************************/
366 ACPI_GLOBAL(struct acpi_thread_state
*, acpi_gbl_current_walk_list
);
368 /* Control method single step flag */
370 ACPI_GLOBAL(u8
, acpi_gbl_cm_single_step
);
372 /*****************************************************************************
376 ****************************************************************************/
378 extern struct acpi_bit_register_info
379 acpi_gbl_bit_register_info
[ACPI_NUM_BITREG
];
381 ACPI_GLOBAL(u8
, acpi_gbl_sleep_type_a
);
382 ACPI_GLOBAL(u8
, acpi_gbl_sleep_type_b
);
384 /*****************************************************************************
386 * Event and GPE globals
388 ****************************************************************************/
390 #if (!ACPI_REDUCED_HARDWARE)
392 ACPI_GLOBAL(u8
, acpi_gbl_all_gpes_initialized
);
393 ACPI_GLOBAL(struct acpi_gpe_xrupt_info
*, acpi_gbl_gpe_xrupt_list_head
);
394 ACPI_GLOBAL(struct acpi_gpe_block_info
*,
395 acpi_gbl_gpe_fadt_blocks
[ACPI_MAX_GPE_BLOCKS
]);
396 ACPI_GLOBAL(acpi_gbl_event_handler
, acpi_gbl_global_event_handler
);
397 ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context
);
398 ACPI_GLOBAL(struct acpi_fixed_event_handler
,
399 acpi_gbl_fixed_event_handlers
[ACPI_NUM_FIXED_EVENTS
]);
401 extern struct acpi_fixed_event_info
402 acpi_gbl_fixed_event_info
[ACPI_NUM_FIXED_EVENTS
];
404 #endif /* !ACPI_REDUCED_HARDWARE */
406 /*****************************************************************************
410 ****************************************************************************/
414 ACPI_GLOBAL(u32
, acpi_method_count
);
415 ACPI_GLOBAL(u32
, acpi_gpe_count
);
416 ACPI_GLOBAL(u32
, acpi_sci_count
);
417 ACPI_GLOBAL(u32
, acpi_fixed_event_count
[ACPI_NUM_FIXED_EVENTS
]);
419 /* Support for dynamic control method tracing mechanism */
421 ACPI_GLOBAL(u32
, acpi_gbl_original_dbg_level
);
422 ACPI_GLOBAL(u32
, acpi_gbl_original_dbg_layer
);
423 ACPI_GLOBAL(u32
, acpi_gbl_trace_dbg_level
);
424 ACPI_GLOBAL(u32
, acpi_gbl_trace_dbg_layer
);
426 /*****************************************************************************
428 * Debugger and Disassembler globals
430 ****************************************************************************/
432 ACPI_GLOBAL(u8
, acpi_gbl_db_output_flags
);
434 #ifdef ACPI_DISASSEMBLER
436 /* Do not disassemble buffers to resource descriptors */
438 ACPI_INIT_GLOBAL(u8
, acpi_gbl_no_resource_disassembly
, FALSE
);
439 ACPI_INIT_GLOBAL(u8
, acpi_gbl_ignore_noop_operator
, FALSE
);
441 ACPI_GLOBAL(u8
, acpi_gbl_db_opt_disasm
);
442 ACPI_GLOBAL(u8
, acpi_gbl_db_opt_verbose
);
443 ACPI_GLOBAL(u8
, acpi_gbl_num_external_methods
);
444 ACPI_GLOBAL(u32
, acpi_gbl_resolved_external_methods
);
445 ACPI_GLOBAL(struct acpi_external_list
*, acpi_gbl_external_list
);
446 ACPI_GLOBAL(struct acpi_external_file
*, acpi_gbl_external_file_list
);
451 ACPI_INIT_GLOBAL(u8
, acpi_gbl_db_terminate_threads
, FALSE
);
452 ACPI_INIT_GLOBAL(u8
, acpi_gbl_abort_method
, FALSE
);
453 ACPI_INIT_GLOBAL(u8
, acpi_gbl_method_executing
, FALSE
);
455 ACPI_GLOBAL(u8
, acpi_gbl_db_opt_tables
);
456 ACPI_GLOBAL(u8
, acpi_gbl_db_opt_stats
);
457 ACPI_GLOBAL(u8
, acpi_gbl_db_opt_ini_methods
);
458 ACPI_GLOBAL(u8
, acpi_gbl_db_opt_no_region_support
);
459 ACPI_GLOBAL(u8
, acpi_gbl_db_output_to_file
);
460 ACPI_GLOBAL(char *, acpi_gbl_db_buffer
);
461 ACPI_GLOBAL(char *, acpi_gbl_db_filename
);
462 ACPI_GLOBAL(u32
, acpi_gbl_db_debug_level
);
463 ACPI_GLOBAL(u32
, acpi_gbl_db_console_debug_level
);
464 ACPI_GLOBAL(struct acpi_namespace_node
*, acpi_gbl_db_scope_node
);
466 ACPI_GLOBAL(char *, acpi_gbl_db_args
[ACPI_DEBUGGER_MAX_ARGS
]);
467 ACPI_GLOBAL(acpi_object_type
, acpi_gbl_db_arg_types
[ACPI_DEBUGGER_MAX_ARGS
]);
469 /* These buffers should all be the same size */
471 ACPI_GLOBAL(char, acpi_gbl_db_line_buf
[ACPI_DB_LINE_BUFFER_SIZE
]);
472 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf
[ACPI_DB_LINE_BUFFER_SIZE
]);
473 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf
[ACPI_DB_LINE_BUFFER_SIZE
]);
474 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename
[ACPI_DB_LINE_BUFFER_SIZE
]);
479 ACPI_GLOBAL(u16
, acpi_gbl_obj_type_count
[ACPI_TYPE_NS_NODE_MAX
+ 1]);
480 ACPI_GLOBAL(u16
, acpi_gbl_node_type_count
[ACPI_TYPE_NS_NODE_MAX
+ 1]);
481 ACPI_GLOBAL(u16
, acpi_gbl_obj_type_count_misc
);
482 ACPI_GLOBAL(u16
, acpi_gbl_node_type_count_misc
);
483 ACPI_GLOBAL(u32
, acpi_gbl_num_nodes
);
484 ACPI_GLOBAL(u32
, acpi_gbl_num_objects
);
486 ACPI_GLOBAL(u32
, acpi_gbl_size_of_parse_tree
);
487 ACPI_GLOBAL(u32
, acpi_gbl_size_of_method_trees
);
488 ACPI_GLOBAL(u32
, acpi_gbl_size_of_node_entries
);
489 ACPI_GLOBAL(u32
, acpi_gbl_size_of_acpi_objects
);
491 #endif /* ACPI_DEBUGGER */
493 /*****************************************************************************
495 * Application globals
497 ****************************************************************************/
499 #ifdef ACPI_APPLICATION
501 ACPI_INIT_GLOBAL(ACPI_FILE
, acpi_gbl_debug_file
, NULL
);
503 #endif /* ACPI_APPLICATION */
505 /*****************************************************************************
509 ****************************************************************************/
511 extern const struct ah_predefined_name asl_predefined_info
[];
513 #endif /* __ACGLOBAL_H__ */