1 /******************************************************************************
3 * Name: acglobal.h - Declarations for global variables
5 *****************************************************************************/
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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
55 #define ACPI_INIT_GLOBAL(a,b) a=b
57 #define ACPI_EXTERN extern
58 #define ACPI_INIT_GLOBAL(a,b) a
61 #ifdef DEFINE_ACPI_GLOBALS
63 /* Public globals, available from outside ACPICA subsystem */
65 /*****************************************************************************
67 * Runtime configuration (static defaults that can be overriden at runtime)
69 ****************************************************************************/
72 * Enable "slack" in the AML interpreter? Default is FALSE, and the
73 * interpreter strictly follows the ACPI specification. Setting to TRUE
74 * allows the interpreter to ignore certain errors and/or bad AML constructs.
76 * Currently, these features are enabled by this flag:
78 * 1) Allow "implicit return" of last value in a control method
79 * 2) Allow access beyond the end of an operation region
80 * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
81 * 4) Allow ANY object type to be a source operand for the Store() operator
82 * 5) Allow unresolved references (invalid target name) in package objects
83 * 6) Enable warning messages for behavior that is not ACPI spec compliant
85 u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE);
88 * Automatically serialize ALL control methods? Default is FALSE, meaning
89 * to use the Serialized/not_serialized method flags on a per method basis.
90 * Only change this if the ASL code is poorly written and cannot handle
91 * reentrancy even though methods are marked "NotSerialized".
93 u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE);
96 * Create the predefined _OSI method in the namespace? Default is TRUE
97 * because ACPI CA is fully compatible with other ACPI implementations.
98 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
100 u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE);
103 * Disable wakeup GPEs during runtime? Default is TRUE because WAKE and
104 * RUNTIME GPEs should never be shared, and WAKE GPEs should typically only
105 * be enabled just before going to sleep.
107 u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE);
110 * Optionally use default values for the ACPI register widths. Set this to
111 * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
113 u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE);
116 * Optionally enable output from the AML Debug Object.
118 u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE);
121 * Optionally copy the entire DSDT to local memory (instead of simply
122 * mapping it.) There are some BIOSs that corrupt or replace the original
123 * DSDT, creating the need for this option. Default is FALSE, do not copy
126 u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE);
129 * Optionally truncate I/O addresses to 16 bits. Provides compatibility
130 * with other ACPI implementations. NOTE: During ACPICA initialization,
131 * this value is set to TRUE if any Windows OSI strings have been
132 * requested by the BIOS.
134 u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE);
136 /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
138 struct acpi_table_fadt acpi_gbl_FADT;
139 u32 acpi_current_gpe_count;
140 u32 acpi_gbl_trace_flags;
141 acpi_name acpi_gbl_trace_method_name;
145 /*****************************************************************************
149 ****************************************************************************/
151 /* Procedure nesting level for debug output */
153 extern u32 acpi_gbl_nesting_level;
155 /* Support for dynamic control method tracing mechanism */
157 ACPI_EXTERN u32 acpi_gbl_original_dbg_level;
158 ACPI_EXTERN u32 acpi_gbl_original_dbg_layer;
159 ACPI_EXTERN u32 acpi_gbl_trace_dbg_level;
160 ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer;
162 /*****************************************************************************
166 ****************************************************************************/
169 * acpi_gbl_root_table_list is the master list of ACPI tables that were
170 * found in the RSDT/XSDT.
172 ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list;
173 ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS;
175 /* These addresses are calculated from the FADT Event Block addresses */
177 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status;
178 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable;
180 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status;
181 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable;
183 /* DSDT information. Used to check for DSDT corruption */
185 ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT;
186 ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header;
189 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is
190 * determined by the revision of the DSDT: If the DSDT revision is less than
191 * 2, use only the lower 32 bits of the internal 64-bit Integer.
193 ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
194 ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
195 ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
197 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
199 ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock;
201 /*****************************************************************************
203 * Mutual exlusion within ACPICA subsystem
205 ****************************************************************************/
208 * Predefined mutex objects. This array contains the
209 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
210 * (The table maps local handles to the real OS handles)
212 ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX];
215 * Global lock mutex is an actual AML mutex object
216 * Global lock semaphore works in conjunction with the HW global lock
218 ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex;
219 ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore;
220 ACPI_EXTERN u16 acpi_gbl_global_lock_handle;
221 ACPI_EXTERN u8 acpi_gbl_global_lock_acquired;
222 ACPI_EXTERN u8 acpi_gbl_global_lock_present;
225 * Spinlocks are used for interfaces that can be possibly called at
228 ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */
229 ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
230 #define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock
231 #define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock
233 /*****************************************************************************
235 * Miscellaneous globals
237 ****************************************************************************/
239 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
241 /* Lists for tracking memory allocations */
243 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
244 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
245 ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats;
250 ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache;
251 ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache;
252 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache;
253 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache;
254 ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache;
256 /* Global handlers */
258 ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify;
259 ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify;
260 ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler;
261 ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
262 ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler;
263 ACPI_EXTERN void *acpi_gbl_table_handler_context;
264 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
266 /* Owner ID support */
268 ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS];
269 ACPI_EXTERN u8 acpi_gbl_last_owner_id_index;
270 ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset;
274 ACPI_EXTERN u32 acpi_gbl_original_mode;
275 ACPI_EXTERN u32 acpi_gbl_rsdp_original_location;
276 ACPI_EXTERN u32 acpi_gbl_ns_lookup_count;
277 ACPI_EXTERN u32 acpi_gbl_ps_find_count;
278 ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save;
279 ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
280 ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
281 ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
282 ACPI_EXTERN u8 acpi_gbl_events_initialized;
283 ACPI_EXTERN u8 acpi_gbl_system_awake_and_running;
284 ACPI_EXTERN u8 acpi_gbl_osi_data;
286 #ifndef DEFINE_ACPI_GLOBALS
288 /* Other miscellaneous */
290 extern u8 acpi_gbl_shutdown;
291 extern u32 acpi_gbl_startup_flags;
292 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
293 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
294 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
295 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
296 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
300 /* Exception codes */
302 extern char const *acpi_gbl_exception_names_env[];
303 extern char const *acpi_gbl_exception_names_pgm[];
304 extern char const *acpi_gbl_exception_names_tbl[];
305 extern char const *acpi_gbl_exception_names_aml[];
306 extern char const *acpi_gbl_exception_names_ctrl[];
308 /*****************************************************************************
312 ****************************************************************************/
314 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
315 #define NUM_PREDEFINED_NAMES 10
317 #define NUM_PREDEFINED_NAMES 9
320 ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct;
321 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node;
322 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device;
323 ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list;
325 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
326 extern const struct acpi_predefined_names
327 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
329 #ifdef ACPI_DEBUG_OUTPUT
330 ACPI_EXTERN u32 acpi_gbl_current_node_count;
331 ACPI_EXTERN u32 acpi_gbl_current_node_size;
332 ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count;
333 ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer;
334 ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer;
335 ACPI_EXTERN u32 acpi_gbl_deepest_nesting;
338 /*****************************************************************************
340 * Interpreter globals
342 ****************************************************************************/
344 ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list;
346 /* Control method single step flag */
348 ACPI_EXTERN u8 acpi_gbl_cm_single_step;
350 /*****************************************************************************
354 ****************************************************************************/
356 extern struct acpi_bit_register_info
357 acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
358 ACPI_EXTERN u8 acpi_gbl_sleep_type_a;
359 ACPI_EXTERN u8 acpi_gbl_sleep_type_b;
361 /*****************************************************************************
363 * Event and GPE globals
365 ****************************************************************************/
367 extern struct acpi_fixed_event_info
368 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
369 ACPI_EXTERN struct acpi_fixed_event_handler
370 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
371 ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
372 ACPI_EXTERN struct acpi_gpe_block_info
373 *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
375 /*****************************************************************************
379 ****************************************************************************/
381 ACPI_EXTERN u8 acpi_gbl_db_output_flags;
383 #ifdef ACPI_DISASSEMBLER
385 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
386 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
391 extern u8 acpi_gbl_method_executing;
392 extern u8 acpi_gbl_abort_method;
393 extern u8 acpi_gbl_db_terminate_threads;
395 ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
396 ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
397 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
399 ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
400 ACPI_EXTERN char acpi_gbl_db_line_buf[80];
401 ACPI_EXTERN char acpi_gbl_db_parsed_buf[80];
402 ACPI_EXTERN char acpi_gbl_db_scope_buf[40];
403 ACPI_EXTERN char acpi_gbl_db_debug_filename[40];
404 ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
405 ACPI_EXTERN char *acpi_gbl_db_buffer;
406 ACPI_EXTERN char *acpi_gbl_db_filename;
407 ACPI_EXTERN u32 acpi_gbl_db_debug_level;
408 ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
409 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
414 ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
415 ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
416 ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc;
417 ACPI_EXTERN u16 acpi_gbl_node_type_count_misc;
418 ACPI_EXTERN u32 acpi_gbl_num_nodes;
419 ACPI_EXTERN u32 acpi_gbl_num_objects;
421 ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree;
422 ACPI_EXTERN u32 acpi_gbl_size_of_method_trees;
423 ACPI_EXTERN u32 acpi_gbl_size_of_node_entries;
424 ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects;
426 #endif /* ACPI_DEBUGGER */
428 #endif /* __ACGLOBAL_H__ */