1 /******************************************************************************
3 * Name: acglobal.h - Declarations for global variables
5 *****************************************************************************/
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44 #ifndef __ACGLOBAL_H__
45 #define __ACGLOBAL_H__
47 #pragma pack(push) /* Set default struct packing */
50 * Ensure that the globals are actually defined and initialized only once.
52 * The use of these macros allows a single list of globals (here) in order
53 * to simplify maintenance of the code.
55 #ifdef DEFINE_ACPI_GLOBALS
56 #define ACPI_GLOBAL(type,name) \
60 #define ACPI_INIT_GLOBAL(type,name,value) \
64 #define ACPI_GLOBAL(type,name) \
67 #define ACPI_INIT_GLOBAL(type,name,value) \
71 #ifdef DEFINE_ACPI_GLOBALS
73 /* Public globals, available from outside ACPICA subsystem */
75 /*****************************************************************************
77 * Runtime configuration (static defaults that can be overriden at runtime)
79 ****************************************************************************/
82 * Enable "slack" in the AML interpreter? Default is FALSE, and the
83 * interpreter strictly follows the ACPI specification. Setting to TRUE
84 * allows the interpreter to ignore certain errors and/or bad AML constructs.
86 * Currently, these features are enabled by this flag:
88 * 1) Allow "implicit return" of last value in a control method
89 * 2) Allow access beyond the end of an operation region
90 * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
91 * 4) Allow ANY object type to be a source operand for the Store() operator
92 * 5) Allow unresolved references (invalid target name) in package objects
93 * 6) Enable warning messages for behavior that is not ACPI spec compliant
95 ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_interpreter_slack, FALSE);
98 * Automatically serialize ALL control methods? Default is FALSE, meaning
99 * to use the Serialized/not_serialized method flags on a per method basis.
100 * Only change this if the ASL code is poorly written and cannot handle
101 * reentrancy even though methods are marked "NotSerialized".
103 ACPI_INIT_GLOBAL(u8, acpi_gbl_all_methods_serialized, FALSE);
106 * Create the predefined _OSI method in the namespace? Default is TRUE
107 * because ACPI CA is fully compatible with other ACPI implementations.
108 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
110 ACPI_INIT_GLOBAL(u8, acpi_gbl_create_osi_method, TRUE);
113 * Optionally use default values for the ACPI register widths. Set this to
114 * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
116 ACPI_INIT_GLOBAL(u8, acpi_gbl_use_default_register_widths, TRUE);
119 * Optionally enable output from the AML Debug Object.
121 ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_aml_debug_object, FALSE);
124 * Optionally copy the entire DSDT to local memory (instead of simply
125 * mapping it.) There are some BIOSs that corrupt or replace the original
126 * DSDT, creating the need for this option. Default is FALSE, do not copy
129 ACPI_INIT_GLOBAL(u8, acpi_gbl_copy_dsdt_locally, FALSE);
132 * Optionally ignore an XSDT if present and use the RSDT instead.
133 * Although the ACPI specification requires that an XSDT be used instead
134 * of the RSDT, the XSDT has been found to be corrupt or ill-formed on
135 * some machines. Default behavior is to use the XSDT if present.
137 ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
140 * Optionally use 32-bit FADT addresses if and when there is a conflict
141 * (address mismatch) between the 32-bit and 64-bit versions of the
142 * address. Although ACPICA adheres to the ACPI specification which
143 * requires the use of the corresponding 64-bit address if it is non-zero,
144 * some machines have been found to have a corrupted non-zero 64-bit
145 * address. Default is FALSE, do not favor the 32-bit addresses.
147 ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
150 * Optionally truncate I/O addresses to 16 bits. Provides compatibility
151 * with other ACPI implementations. NOTE: During ACPICA initialization,
152 * this value is set to TRUE if any Windows OSI strings have been
153 * requested by the BIOS.
155 ACPI_INIT_GLOBAL(u8, acpi_gbl_truncate_io_addresses, FALSE);
158 * Disable runtime checking and repair of values returned by control methods.
159 * Use only if the repair is causing a problem on a particular machine.
161 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_auto_repair, FALSE);
164 * Optionally do not load any SSDTs from the RSDT/XSDT during initialization.
165 * This can be useful for debugging ACPI problems on some machines.
167 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_ssdt_table_load, FALSE);
170 * We keep track of the latest version of Windows that has been requested by
173 ACPI_INIT_GLOBAL(u8, acpi_gbl_osi_data, 0);
175 #endif /* DEFINE_ACPI_GLOBALS */
177 /*****************************************************************************
181 ****************************************************************************/
184 * Master list of all ACPI tables that were found in the RSDT/XSDT.
186 ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list);
188 /* DSDT information. Used to check for DSDT corruption */
190 ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT);
191 ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header);
193 #if (!ACPI_REDUCED_HARDWARE)
194 ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
196 #endif /* !ACPI_REDUCED_HARDWARE */
198 /* These addresses are calculated from the FADT Event Block addresses */
200 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_status);
201 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_enable);
203 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_status);
204 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_enable);
207 * Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is
208 * determined by the revision of the DSDT: If the DSDT revision is less than
209 * 2, use only the lower 32 bits of the internal 64-bit Integer.
211 ACPI_GLOBAL(u8, acpi_gbl_integer_bit_width);
212 ACPI_GLOBAL(u8, acpi_gbl_integer_byte_width);
213 ACPI_GLOBAL(u8, acpi_gbl_integer_nybble_width);
215 /*****************************************************************************
217 * Mutual exclusion within ACPICA subsystem
219 ****************************************************************************/
222 * Predefined mutex objects. This array contains the
223 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
224 * (The table maps local handles to the real OS handles)
226 ACPI_GLOBAL(struct acpi_mutex_info, acpi_gbl_mutex_info[ACPI_NUM_MUTEX]);
229 * Global lock mutex is an actual AML mutex object
230 * Global lock semaphore works in conjunction with the actual global lock
231 * Global lock spinlock is used for "pending" handshake
233 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_global_lock_mutex);
234 ACPI_GLOBAL(acpi_semaphore, acpi_gbl_global_lock_semaphore);
235 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_global_lock_pending_lock);
236 ACPI_GLOBAL(u16, acpi_gbl_global_lock_handle);
237 ACPI_GLOBAL(u8, acpi_gbl_global_lock_acquired);
238 ACPI_GLOBAL(u8, acpi_gbl_global_lock_present);
239 ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending);
242 * Spinlocks are used for interfaces that can be possibly called at
245 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock); /* For GPE data structs and registers */
246 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_hardware_lock); /* For ACPI H/W except GPE registers */
247 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock);
249 /* Mutex for _OSI support */
251 ACPI_GLOBAL(acpi_mutex, acpi_gbl_osi_mutex);
253 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
255 ACPI_GLOBAL(struct acpi_rw_lock, acpi_gbl_namespace_rw_lock);
257 /*****************************************************************************
259 * Miscellaneous globals
261 ****************************************************************************/
265 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_namespace_cache);
266 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_state_cache);
267 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_cache);
268 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_ext_cache);
269 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache);
273 ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0);
274 ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE);
276 /* Global handlers */
278 ACPI_GLOBAL(struct acpi_global_notify_handler, acpi_gbl_global_notify[2]);
279 ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler);
280 ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler);
281 ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler);
282 ACPI_GLOBAL(void *, acpi_gbl_table_handler_context);
283 ACPI_GLOBAL(struct acpi_walk_state *, acpi_gbl_breakpoint_walk);
284 ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler);
285 ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list);
287 /* Owner ID support */
289 ACPI_GLOBAL(u32, acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]);
290 ACPI_GLOBAL(u8, acpi_gbl_last_owner_id_index);
291 ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset);
293 /* Initialization sequencing */
295 ACPI_GLOBAL(u8, acpi_gbl_reg_methods_executed);
299 ACPI_GLOBAL(u32, acpi_gbl_original_mode);
300 ACPI_GLOBAL(u32, acpi_gbl_rsdp_original_location);
301 ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count);
302 ACPI_GLOBAL(u32, acpi_gbl_ps_find_count);
303 ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save);
304 ACPI_GLOBAL(u8, acpi_gbl_debugger_configuration);
305 ACPI_GLOBAL(u8, acpi_gbl_step_to_next_call);
306 ACPI_GLOBAL(u8, acpi_gbl_acpi_hardware_present);
307 ACPI_GLOBAL(u8, acpi_gbl_events_initialized);
308 ACPI_GLOBAL(struct acpi_interface_info *, acpi_gbl_supported_interfaces);
309 ACPI_GLOBAL(struct acpi_address_range *,
310 acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]);
312 /* Other miscellaneous, declared and initialized in utglobal */
314 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
315 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
316 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
317 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
318 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
320 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
322 /* Lists for tracking memory allocations (debug only) */
324 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list);
325 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list);
326 ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats);
327 ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
330 /*****************************************************************************
334 ****************************************************************************/
336 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
337 #define NUM_PREDEFINED_NAMES 10
339 #define NUM_PREDEFINED_NAMES 9
342 ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
343 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);
344 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device);
345 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_module_code_list);
347 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
348 extern const struct acpi_predefined_names
349 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
351 #ifdef ACPI_DEBUG_OUTPUT
352 ACPI_GLOBAL(u32, acpi_gbl_current_node_count);
353 ACPI_GLOBAL(u32, acpi_gbl_current_node_size);
354 ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count);
355 ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer);
356 ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer);
357 ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting);
358 ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0);
361 /*****************************************************************************
363 * Interpreter globals
365 ****************************************************************************/
367 ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list);
369 /* Control method single step flag */
371 ACPI_GLOBAL(u8, acpi_gbl_cm_single_step);
373 /*****************************************************************************
377 ****************************************************************************/
379 extern struct acpi_bit_register_info
380 acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
382 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
383 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
385 /*****************************************************************************
387 * Event and GPE globals
389 ****************************************************************************/
391 #if (!ACPI_REDUCED_HARDWARE)
393 ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized);
394 ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head);
395 ACPI_GLOBAL(struct acpi_gpe_block_info *,
396 acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]);
397 ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler);
398 ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context);
399 ACPI_GLOBAL(struct acpi_fixed_event_handler,
400 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]);
402 extern struct acpi_fixed_event_info
403 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
405 #endif /* !ACPI_REDUCED_HARDWARE */
407 /*****************************************************************************
411 ****************************************************************************/
415 ACPI_GLOBAL(u32, acpi_method_count);
416 ACPI_GLOBAL(u32, acpi_gpe_count);
417 ACPI_GLOBAL(u32, acpi_sci_count);
418 ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
420 /* Support for dynamic control method tracing mechanism */
422 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
423 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
424 ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_level);
425 ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_layer);
427 /*****************************************************************************
429 * Debugger and Disassembler globals
431 ****************************************************************************/
433 ACPI_GLOBAL(u8, acpi_gbl_db_output_flags);
435 #ifdef ACPI_DISASSEMBLER
437 /* Do not disassemble buffers to resource descriptors */
439 ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
440 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
442 ACPI_GLOBAL(u8, acpi_gbl_db_opt_disasm);
443 ACPI_GLOBAL(u8, acpi_gbl_db_opt_verbose);
444 ACPI_GLOBAL(u8, acpi_gbl_num_external_methods);
445 ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods);
446 ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list);
447 ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
452 ACPI_INIT_GLOBAL(u8, acpi_gbl_db_terminate_threads, FALSE);
453 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
454 ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
456 ACPI_GLOBAL(u8, acpi_gbl_db_opt_tables);
457 ACPI_GLOBAL(u8, acpi_gbl_db_opt_stats);
458 ACPI_GLOBAL(u8, acpi_gbl_db_opt_ini_methods);
459 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
460 ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file);
461 ACPI_GLOBAL(char *, acpi_gbl_db_buffer);
462 ACPI_GLOBAL(char *, acpi_gbl_db_filename);
463 ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
464 ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
465 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
467 ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
468 ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
470 /* These buffers should all be the same size */
472 ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]);
473 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
474 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
475 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
480 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]);
481 ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]);
482 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc);
483 ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
484 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
485 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
487 ACPI_GLOBAL(u32, acpi_gbl_size_of_parse_tree);
488 ACPI_GLOBAL(u32, acpi_gbl_size_of_method_trees);
489 ACPI_GLOBAL(u32, acpi_gbl_size_of_node_entries);
490 ACPI_GLOBAL(u32, acpi_gbl_size_of_acpi_objects);
492 #endif /* ACPI_DEBUGGER */
494 /*****************************************************************************
496 * Application globals
498 ****************************************************************************/
500 #ifdef ACPI_APPLICATION
502 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
504 #endif /* ACPI_APPLICATION */
506 /*****************************************************************************
510 ****************************************************************************/
512 extern const struct ah_predefined_name asl_predefined_info[];
514 #pragma pack(pop) /* Restore original struct packing */
516 #endif /* __ACGLOBAL_H__ */