1 /****************************************************************************** 2 * 3 * Name: acglobal.h - Declarations for global variables 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2013, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 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. 25 * 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. 29 * 30 * NO WARRANTY 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. 42 */ 43 44 #ifndef __ACGLOBAL_H__ 45 #define __ACGLOBAL_H__ 46 47 /* 48 * Ensure that the globals are actually defined and initialized only once. 49 * 50 * The use of these macros allows a single list of globals (here) in order 51 * to simplify maintenance of the code. 52 */ 53 #ifdef DEFINE_ACPI_GLOBALS 54 #define ACPI_EXTERN 55 #define ACPI_INIT_GLOBAL(a,b) a=b 56 #else 57 #define ACPI_EXTERN extern 58 #define ACPI_INIT_GLOBAL(a,b) a 59 #endif 60 61 #ifdef DEFINE_ACPI_GLOBALS 62 63 /* Public globals, available from outside ACPICA subsystem */ 64 65 /***************************************************************************** 66 * 67 * Runtime configuration (static defaults that can be overriden at runtime) 68 * 69 ****************************************************************************/ 70 71 /* 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. 75 * 76 * Currently, these features are enabled by this flag: 77 * 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 84 */ 85 u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE); 86 87 /* 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". 92 */ 93 u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE); 94 95 /* 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. 99 */ 100 u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE); 101 102 /* 103 * Optionally use default values for the ACPI register widths. Set this to 104 * TRUE to use the defaults, if an FADT contains incorrect widths/lengths. 105 */ 106 u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE); 107 108 /* 109 * Optionally enable output from the AML Debug Object. 110 */ 111 bool ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); 112 113 /* 114 * Optionally copy the entire DSDT to local memory (instead of simply 115 * mapping it.) There are some BIOSs that corrupt or replace the original 116 * DSDT, creating the need for this option. Default is FALSE, do not copy 117 * the DSDT. 118 */ 119 u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); 120 121 /* 122 * Optionally truncate I/O addresses to 16 bits. Provides compatibility 123 * with other ACPI implementations. NOTE: During ACPICA initialization, 124 * this value is set to TRUE if any Windows OSI strings have been 125 * requested by the BIOS. 126 */ 127 u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE); 128 129 /* 130 * Disable runtime checking and repair of values returned by control methods. 131 * Use only if the repair is causing a problem on a particular machine. 132 */ 133 u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_auto_repair, FALSE); 134 135 /* 136 * Optionally do not load any SSDTs from the RSDT/XSDT during initialization. 137 * This can be useful for debugging ACPI problems on some machines. 138 */ 139 u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_ssdt_table_load, FALSE); 140 141 /* 142 * We keep track of the latest version of Windows that has been requested by 143 * the BIOS. 144 */ 145 u8 ACPI_INIT_GLOBAL(acpi_gbl_osi_data, 0); 146 147 /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ 148 149 struct acpi_table_fadt acpi_gbl_FADT; 150 u32 acpi_current_gpe_count; 151 u32 acpi_gbl_trace_flags; 152 acpi_name acpi_gbl_trace_method_name; 153 u8 acpi_gbl_system_awake_and_running; 154 155 /* 156 * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning 157 * that the ACPI hardware is no longer required. A flag in the FADT indicates 158 * a reduced HW machine, and that flag is duplicated here for convenience. 159 */ 160 u8 acpi_gbl_reduced_hardware; 161 162 #endif /* DEFINE_ACPI_GLOBALS */ 163 164 /* Do not disassemble buffers to resource descriptors */ 165 166 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_no_resource_disassembly, FALSE); 167 168 /***************************************************************************** 169 * 170 * ACPI Table globals 171 * 172 ****************************************************************************/ 173 174 /* 175 * acpi_gbl_root_table_list is the master list of ACPI tables that were 176 * found in the RSDT/XSDT. 177 */ 178 ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list; 179 180 #if (!ACPI_REDUCED_HARDWARE) 181 ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS; 182 183 #endif /* !ACPI_REDUCED_HARDWARE */ 184 185 /* These addresses are calculated from the FADT Event Block addresses */ 186 187 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status; 188 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable; 189 190 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status; 191 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable; 192 193 /* DSDT information. Used to check for DSDT corruption */ 194 195 ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT; 196 ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header; 197 198 /* 199 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is 200 * determined by the revision of the DSDT: If the DSDT revision is less than 201 * 2, use only the lower 32 bits of the internal 64-bit Integer. 202 */ 203 ACPI_EXTERN u8 acpi_gbl_integer_bit_width; 204 ACPI_EXTERN u8 acpi_gbl_integer_byte_width; 205 ACPI_EXTERN u8 acpi_gbl_integer_nybble_width; 206 207 /***************************************************************************** 208 * 209 * Mutual exclusion within ACPICA subsystem 210 * 211 ****************************************************************************/ 212 213 /* 214 * Predefined mutex objects. This array contains the 215 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs. 216 * (The table maps local handles to the real OS handles) 217 */ 218 ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX]; 219 220 /* 221 * Global lock mutex is an actual AML mutex object 222 * Global lock semaphore works in conjunction with the actual global lock 223 * Global lock spinlock is used for "pending" handshake 224 */ 225 ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex; 226 ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore; 227 ACPI_EXTERN acpi_spinlock acpi_gbl_global_lock_pending_lock; 228 ACPI_EXTERN u16 acpi_gbl_global_lock_handle; 229 ACPI_EXTERN u8 acpi_gbl_global_lock_acquired; 230 ACPI_EXTERN u8 acpi_gbl_global_lock_present; 231 ACPI_EXTERN u8 acpi_gbl_global_lock_pending; 232 233 /* 234 * Spinlocks are used for interfaces that can be possibly called at 235 * interrupt level 236 */ 237 ACPI_EXTERN acpi_spinlock acpi_gbl_gpe_lock; /* For GPE data structs and registers */ 238 ACPI_EXTERN acpi_spinlock acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ 239 ACPI_EXTERN acpi_spinlock acpi_gbl_reference_count_lock; 240 241 /* Mutex for _OSI support */ 242 243 ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex; 244 245 /* Reader/Writer lock is used for namespace walk and dynamic table unload */ 246 247 ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; 248 249 /***************************************************************************** 250 * 251 * Miscellaneous globals 252 * 253 ****************************************************************************/ 254 255 /* Object caches */ 256 257 ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache; 258 ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache; 259 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache; 260 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache; 261 ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache; 262 263 /* Global handlers */ 264 265 ACPI_EXTERN struct acpi_global_notify_handler acpi_gbl_global_notify[2]; 266 ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler; 267 ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler; 268 ACPI_EXTERN acpi_table_handler acpi_gbl_table_handler; 269 ACPI_EXTERN void *acpi_gbl_table_handler_context; 270 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; 271 ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler; 272 ACPI_EXTERN struct acpi_sci_handler_info *acpi_gbl_sci_handler_list; 273 274 /* Owner ID support */ 275 276 ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]; 277 ACPI_EXTERN u8 acpi_gbl_last_owner_id_index; 278 ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset; 279 280 /* Initialization sequencing */ 281 282 ACPI_EXTERN u8 acpi_gbl_reg_methods_executed; 283 284 /* Misc */ 285 286 ACPI_EXTERN u32 acpi_gbl_original_mode; 287 ACPI_EXTERN u32 acpi_gbl_rsdp_original_location; 288 ACPI_EXTERN u32 acpi_gbl_ns_lookup_count; 289 ACPI_EXTERN u32 acpi_gbl_ps_find_count; 290 ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save; 291 ACPI_EXTERN u8 acpi_gbl_debugger_configuration; 292 ACPI_EXTERN u8 acpi_gbl_step_to_next_call; 293 ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; 294 ACPI_EXTERN u8 acpi_gbl_events_initialized; 295 ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces; 296 ACPI_EXTERN struct acpi_address_range 297 *acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]; 298 299 #ifndef DEFINE_ACPI_GLOBALS 300 301 /* Other miscellaneous */ 302 303 extern u8 acpi_gbl_shutdown; 304 extern u32 acpi_gbl_startup_flags; 305 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT]; 306 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS]; 307 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS]; 308 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; 309 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS]; 310 311 #endif 312 313 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 314 315 /* Lists for tracking memory allocations */ 316 317 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list; 318 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list; 319 ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats; 320 ACPI_EXTERN u8 acpi_gbl_disable_mem_tracking; 321 #endif 322 323 /***************************************************************************** 324 * 325 * Namespace globals 326 * 327 ****************************************************************************/ 328 329 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) 330 #define NUM_PREDEFINED_NAMES 10 331 #else 332 #define NUM_PREDEFINED_NAMES 9 333 #endif 334 335 ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct; 336 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node; 337 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device; 338 ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list; 339 340 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES]; 341 extern const struct acpi_predefined_names 342 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES]; 343 344 #ifdef ACPI_DEBUG_OUTPUT 345 ACPI_EXTERN u32 acpi_gbl_current_node_count; 346 ACPI_EXTERN u32 acpi_gbl_current_node_size; 347 ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count; 348 ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer; 349 ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer; 350 ACPI_EXTERN u32 acpi_gbl_deepest_nesting; 351 #endif 352 353 /***************************************************************************** 354 * 355 * Interpreter globals 356 * 357 ****************************************************************************/ 358 359 ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list; 360 361 /* Control method single step flag */ 362 363 ACPI_EXTERN u8 acpi_gbl_cm_single_step; 364 365 /***************************************************************************** 366 * 367 * Hardware globals 368 * 369 ****************************************************************************/ 370 371 extern struct acpi_bit_register_info 372 acpi_gbl_bit_register_info[ACPI_NUM_BITREG]; 373 ACPI_EXTERN u8 acpi_gbl_sleep_type_a; 374 ACPI_EXTERN u8 acpi_gbl_sleep_type_b; 375 376 /***************************************************************************** 377 * 378 * Event and GPE globals 379 * 380 ****************************************************************************/ 381 382 #if (!ACPI_REDUCED_HARDWARE) 383 384 ACPI_EXTERN u8 acpi_gbl_all_gpes_initialized; 385 ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head; 386 ACPI_EXTERN struct acpi_gpe_block_info 387 *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]; 388 ACPI_EXTERN acpi_gbl_event_handler acpi_gbl_global_event_handler; 389 ACPI_EXTERN void *acpi_gbl_global_event_handler_context; 390 ACPI_EXTERN struct acpi_fixed_event_handler 391 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]; 392 extern struct acpi_fixed_event_info 393 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS]; 394 395 #endif /* !ACPI_REDUCED_HARDWARE */ 396 397 /***************************************************************************** 398 * 399 * Debug support 400 * 401 ****************************************************************************/ 402 403 /* Procedure nesting level for debug output */ 404 405 extern u32 acpi_gbl_nesting_level; 406 407 /* Event counters */ 408 409 ACPI_EXTERN u32 acpi_method_count; 410 ACPI_EXTERN u32 acpi_gpe_count; 411 ACPI_EXTERN u32 acpi_sci_count; 412 ACPI_EXTERN u32 acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]; 413 414 /* Support for dynamic control method tracing mechanism */ 415 416 ACPI_EXTERN u32 acpi_gbl_original_dbg_level; 417 ACPI_EXTERN u32 acpi_gbl_original_dbg_layer; 418 ACPI_EXTERN u32 acpi_gbl_trace_dbg_level; 419 ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; 420 421 /***************************************************************************** 422 * 423 * Debugger and Disassembler globals 424 * 425 ****************************************************************************/ 426 427 ACPI_EXTERN u8 acpi_gbl_db_output_flags; 428 429 #ifdef ACPI_DISASSEMBLER 430 431 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_ignore_noop_operator, FALSE); 432 433 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm; 434 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose; 435 ACPI_EXTERN u8 acpi_gbl_num_external_methods; 436 ACPI_EXTERN u32 acpi_gbl_resolved_external_methods; 437 ACPI_EXTERN struct acpi_external_list *acpi_gbl_external_list; 438 ACPI_EXTERN struct acpi_external_file *acpi_gbl_external_file_list; 439 #endif 440 441 #ifdef ACPI_DEBUGGER 442 443 extern u8 acpi_gbl_method_executing; 444 extern u8 acpi_gbl_abort_method; 445 extern u8 acpi_gbl_db_terminate_threads; 446 447 ACPI_EXTERN u8 acpi_gbl_db_opt_tables; 448 ACPI_EXTERN u8 acpi_gbl_db_opt_stats; 449 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods; 450 ACPI_EXTERN u8 acpi_gbl_db_opt_no_region_support; 451 ACPI_EXTERN u8 acpi_gbl_db_output_to_file; 452 ACPI_EXTERN char *acpi_gbl_db_buffer; 453 ACPI_EXTERN char *acpi_gbl_db_filename; 454 ACPI_EXTERN u32 acpi_gbl_db_debug_level; 455 ACPI_EXTERN u32 acpi_gbl_db_console_debug_level; 456 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node; 457 458 ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]; 459 ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]; 460 461 /* These buffers should all be the same size */ 462 463 ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]; 464 ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]; 465 ACPI_EXTERN char acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]; 466 ACPI_EXTERN char acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]; 467 468 /* 469 * Statistic globals 470 */ 471 ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 472 ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 473 ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc; 474 ACPI_EXTERN u16 acpi_gbl_node_type_count_misc; 475 ACPI_EXTERN u32 acpi_gbl_num_nodes; 476 ACPI_EXTERN u32 acpi_gbl_num_objects; 477 478 ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree; 479 ACPI_EXTERN u32 acpi_gbl_size_of_method_trees; 480 ACPI_EXTERN u32 acpi_gbl_size_of_node_entries; 481 ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects; 482 483 #endif /* ACPI_DEBUGGER */ 484 485 /***************************************************************************** 486 * 487 * Info/help support 488 * 489 ****************************************************************************/ 490 491 extern const struct ah_predefined_name asl_predefined_info[]; 492 493 #endif /* __ACGLOBAL_H__ */ 494