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 control methods? Default is FALSE, meaning
97 * to use the Serialized/not_serialized method flags on a per method basis.
98 * Only change this if the ASL code is poorly written and cannot handle
99 * reentrancy even though methods are marked "NotSerialized".
101 ACPI_INIT_GLOBAL(u8, acpi_gbl_all_methods_serialized, FALSE);
104 * Create the predefined _OSI method in the namespace? Default is TRUE
105 * because ACPI CA is fully compatible with other ACPI implementations.
106 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
108 ACPI_INIT_GLOBAL(u8, acpi_gbl_create_osi_method, TRUE);
111 * Optionally use default values for the ACPI register widths. Set this to
112 * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
114 ACPI_INIT_GLOBAL(u8, acpi_gbl_use_default_register_widths, TRUE);
117 * Optionally enable output from the AML Debug Object.
119 ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_aml_debug_object, FALSE);
122 * Optionally copy the entire DSDT to local memory (instead of simply
123 * mapping it.) There are some BIOSs that corrupt or replace the original
124 * DSDT, creating the need for this option. Default is FALSE, do not copy
127 ACPI_INIT_GLOBAL(u8, acpi_gbl_copy_dsdt_locally, FALSE);
130 * Optionally ignore an XSDT if present and use the RSDT instead.
131 * Although the ACPI specification requires that an XSDT be used instead
132 * of the RSDT, the XSDT has been found to be corrupt or ill-formed on
133 * some machines. Default behavior is to use the XSDT if present.
135 ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
138 * Optionally use 32-bit FADT addresses if and when there is a conflict
139 * (address mismatch) between the 32-bit and 64-bit versions of the
140 * address. Although ACPICA adheres to the ACPI specification which
141 * requires the use of the corresponding 64-bit address if it is non-zero,
142 * some machines have been found to have a corrupted non-zero 64-bit
143 * address. Default is FALSE, do not favor the 32-bit addresses.
145 ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
148 * Optionally truncate I/O addresses to 16 bits. Provides compatibility
149 * with other ACPI implementations. NOTE: During ACPICA initialization,
150 * this value is set to TRUE if any Windows OSI strings have been
151 * requested by the BIOS.
153 ACPI_INIT_GLOBAL(u8, acpi_gbl_truncate_io_addresses, FALSE);
156 * Disable runtime checking and repair of values returned by control methods.
157 * Use only if the repair is causing a problem on a particular machine.
159 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_auto_repair, FALSE);
162 * Optionally do not load any SSDTs from the RSDT/XSDT during initialization.
163 * This can be useful for debugging ACPI problems on some machines.
165 ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_ssdt_table_load, FALSE);
168 * We keep track of the latest version of Windows that has been requested by
171 ACPI_INIT_GLOBAL(u8, acpi_gbl_osi_data, 0);
173 #endif /* DEFINE_ACPI_GLOBALS */
175 /*****************************************************************************
179 ****************************************************************************/
182 * Master list of all ACPI tables that were found in the RSDT/XSDT.
184 ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list);
186 /* DSDT information. Used to check for DSDT corruption */
188 ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT);
189 ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header);
191 #if (!ACPI_REDUCED_HARDWARE)
192 ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
194 #endif /* !ACPI_REDUCED_HARDWARE */
196 /* These addresses are calculated from the FADT Event Block addresses */
198 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_status);
199 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_enable);
201 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_status);
202 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_enable);
205 * Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is
206 * determined by the revision of the DSDT: If the DSDT revision is less than
207 * 2, use only the lower 32 bits of the internal 64-bit Integer.
209 ACPI_GLOBAL(u8, acpi_gbl_integer_bit_width);
210 ACPI_GLOBAL(u8, acpi_gbl_integer_byte_width);
211 ACPI_GLOBAL(u8, acpi_gbl_integer_nybble_width);
213 /*****************************************************************************
215 * Mutual exclusion within ACPICA subsystem
217 ****************************************************************************/
220 * Predefined mutex objects. This array contains the
221 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
222 * (The table maps local handles to the real OS handles)
224 ACPI_GLOBAL(struct acpi_mutex_info, acpi_gbl_mutex_info[ACPI_NUM_MUTEX]);
227 * Global lock mutex is an actual AML mutex object
228 * Global lock semaphore works in conjunction with the actual global lock
229 * Global lock spinlock is used for "pending" handshake
231 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_global_lock_mutex);
232 ACPI_GLOBAL(acpi_semaphore, acpi_gbl_global_lock_semaphore);
233 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_global_lock_pending_lock);
234 ACPI_GLOBAL(u16, acpi_gbl_global_lock_handle);
235 ACPI_GLOBAL(u8, acpi_gbl_global_lock_acquired);
236 ACPI_GLOBAL(u8, acpi_gbl_global_lock_present);
237 ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending);
240 * Spinlocks are used for interfaces that can be possibly called at
243 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock); /* For GPE data structs and registers */
244 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_hardware_lock); /* For ACPI H/W except GPE registers */
245 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock);
247 /* Mutex for _OSI support */
249 ACPI_GLOBAL(acpi_mutex, acpi_gbl_osi_mutex);
251 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
253 ACPI_GLOBAL(struct acpi_rw_lock, acpi_gbl_namespace_rw_lock);
255 /*****************************************************************************
257 * Miscellaneous globals
259 ****************************************************************************/
263 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_namespace_cache);
264 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_state_cache);
265 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_cache);
266 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_ext_cache);
267 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache);
271 ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0);
272 ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE);
274 /* Global handlers */
276 ACPI_GLOBAL(struct acpi_global_notify_handler, acpi_gbl_global_notify[2]);
277 ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler);
278 ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler);
279 ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler);
280 ACPI_GLOBAL(void *, acpi_gbl_table_handler_context);
281 ACPI_GLOBAL(struct acpi_walk_state *, acpi_gbl_breakpoint_walk);
282 ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler);
283 ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list);
285 /* Owner ID support */
287 ACPI_GLOBAL(u32, acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]);
288 ACPI_GLOBAL(u8, acpi_gbl_last_owner_id_index);
289 ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset);
291 /* Initialization sequencing */
293 ACPI_GLOBAL(u8, acpi_gbl_reg_methods_executed);
297 ACPI_GLOBAL(u32, acpi_gbl_original_mode);
298 ACPI_GLOBAL(u32, acpi_gbl_rsdp_original_location);
299 ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count);
300 ACPI_GLOBAL(u32, acpi_gbl_ps_find_count);
301 ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save);
302 ACPI_GLOBAL(u8, acpi_gbl_debugger_configuration);
303 ACPI_GLOBAL(u8, acpi_gbl_step_to_next_call);
304 ACPI_GLOBAL(u8, acpi_gbl_acpi_hardware_present);
305 ACPI_GLOBAL(u8, acpi_gbl_events_initialized);
306 ACPI_GLOBAL(struct acpi_interface_info *, acpi_gbl_supported_interfaces);
307 ACPI_GLOBAL(struct acpi_address_range *,
308 acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]);
310 /* Other miscellaneous, declared and initialized in utglobal */
312 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
313 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
314 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
315 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
316 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
318 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
320 /* Lists for tracking memory allocations (debug only) */
322 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list);
323 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list);
324 ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats);
325 ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
328 /*****************************************************************************
332 ****************************************************************************/
334 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
335 #define NUM_PREDEFINED_NAMES 10
337 #define NUM_PREDEFINED_NAMES 9
340 ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
341 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);
342 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device);
343 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_module_code_list);
345 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
346 extern const struct acpi_predefined_names
347 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
349 #ifdef ACPI_DEBUG_OUTPUT
350 ACPI_GLOBAL(u32, acpi_gbl_current_node_count);
351 ACPI_GLOBAL(u32, acpi_gbl_current_node_size);
352 ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count);
353 ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer);
354 ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer);
355 ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting);
356 ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0);
359 /*****************************************************************************
361 * Interpreter globals
363 ****************************************************************************/
365 ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list);
367 /* Control method single step flag */
369 ACPI_GLOBAL(u8, acpi_gbl_cm_single_step);
371 /*****************************************************************************
375 ****************************************************************************/
377 extern struct acpi_bit_register_info
378 acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
380 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
381 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
383 /*****************************************************************************
385 * Event and GPE globals
387 ****************************************************************************/
389 #if (!ACPI_REDUCED_HARDWARE)
391 ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized);
392 ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head);
393 ACPI_GLOBAL(struct acpi_gpe_block_info *,
394 acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]);
395 ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler);
396 ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context);
397 ACPI_GLOBAL(struct acpi_fixed_event_handler,
398 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]);
400 extern struct acpi_fixed_event_info
401 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
403 #endif /* !ACPI_REDUCED_HARDWARE */
405 /*****************************************************************************
409 ****************************************************************************/
413 ACPI_GLOBAL(u32, acpi_method_count);
414 ACPI_GLOBAL(u32, acpi_gpe_count);
415 ACPI_GLOBAL(u32, acpi_sci_count);
416 ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
418 /* Support for dynamic control method tracing mechanism */
420 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
421 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
422 ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_level);
423 ACPI_GLOBAL(u32, acpi_gbl_trace_dbg_layer);
425 /*****************************************************************************
427 * Debugger and Disassembler globals
429 ****************************************************************************/
431 ACPI_GLOBAL(u8, acpi_gbl_db_output_flags);
433 #ifdef ACPI_DISASSEMBLER
435 /* Do not disassemble buffers to resource descriptors */
437 ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
438 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
440 ACPI_GLOBAL(u8, acpi_gbl_db_opt_disasm);
441 ACPI_GLOBAL(u8, acpi_gbl_db_opt_verbose);
442 ACPI_GLOBAL(u8, acpi_gbl_num_external_methods);
443 ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods);
444 ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list);
445 ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
450 ACPI_INIT_GLOBAL(u8, acpi_gbl_db_terminate_threads, FALSE);
451 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
452 ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
454 ACPI_GLOBAL(u8, acpi_gbl_db_opt_tables);
455 ACPI_GLOBAL(u8, acpi_gbl_db_opt_stats);
456 ACPI_GLOBAL(u8, acpi_gbl_db_opt_ini_methods);
457 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
458 ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file);
459 ACPI_GLOBAL(char *, acpi_gbl_db_buffer);
460 ACPI_GLOBAL(char *, acpi_gbl_db_filename);
461 ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
462 ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
463 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
465 ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
466 ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
468 /* These buffers should all be the same size */
470 ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]);
471 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
472 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
473 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
478 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]);
479 ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]);
480 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc);
481 ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
482 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
483 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
485 ACPI_GLOBAL(u32, acpi_gbl_size_of_parse_tree);
486 ACPI_GLOBAL(u32, acpi_gbl_size_of_method_trees);
487 ACPI_GLOBAL(u32, acpi_gbl_size_of_node_entries);
488 ACPI_GLOBAL(u32, acpi_gbl_size_of_acpi_objects);
490 #endif /* ACPI_DEBUGGER */
492 /*****************************************************************************
494 * Application globals
496 ****************************************************************************/
498 #ifdef ACPI_APPLICATION
500 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
502 #endif /* ACPI_APPLICATION */
504 /*****************************************************************************
508 ****************************************************************************/
510 extern const struct ah_predefined_name asl_predefined_info[];
512 #endif /* __ACGLOBAL_H__ */