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 /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ 136 137 struct acpi_table_fadt acpi_gbl_FADT; 138 u32 acpi_current_gpe_count; 139 u32 acpi_gbl_trace_flags; 140 acpi_name acpi_gbl_trace_method_name; 141 u8 acpi_gbl_system_awake_and_running; 142 143 /* 144 * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning 145 * that the ACPI hardware is no longer required. A flag in the FADT indicates 146 * a reduced HW machine, and that flag is duplicated here for convenience. 147 */ 148 u8 acpi_gbl_reduced_hardware; 149 150 #endif /* DEFINE_ACPI_GLOBALS */ 151 152 /* Do not disassemble buffers to resource descriptors */ 153 154 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_no_resource_disassembly, FALSE); 155 156 /***************************************************************************** 157 * 158 * ACPI Table globals 159 * 160 ****************************************************************************/ 161 162 /* 163 * acpi_gbl_root_table_list is the master list of ACPI tables that were 164 * found in the RSDT/XSDT. 165 */ 166 ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list; 167 168 #if (!ACPI_REDUCED_HARDWARE) 169 ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS; 170 171 #endif /* !ACPI_REDUCED_HARDWARE */ 172 173 /* These addresses are calculated from the FADT Event Block addresses */ 174 175 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status; 176 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable; 177 178 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status; 179 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable; 180 181 /* DSDT information. Used to check for DSDT corruption */ 182 183 ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT; 184 ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header; 185 186 /* 187 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is 188 * determined by the revision of the DSDT: If the DSDT revision is less than 189 * 2, use only the lower 32 bits of the internal 64-bit Integer. 190 */ 191 ACPI_EXTERN u8 acpi_gbl_integer_bit_width; 192 ACPI_EXTERN u8 acpi_gbl_integer_byte_width; 193 ACPI_EXTERN u8 acpi_gbl_integer_nybble_width; 194 195 /***************************************************************************** 196 * 197 * Mutual exclusion within ACPICA subsystem 198 * 199 ****************************************************************************/ 200 201 /* 202 * Predefined mutex objects. This array contains the 203 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs. 204 * (The table maps local handles to the real OS handles) 205 */ 206 ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX]; 207 208 /* 209 * Global lock mutex is an actual AML mutex object 210 * Global lock semaphore works in conjunction with the actual global lock 211 * Global lock spinlock is used for "pending" handshake 212 */ 213 ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex; 214 ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore; 215 ACPI_EXTERN acpi_spinlock acpi_gbl_global_lock_pending_lock; 216 ACPI_EXTERN u16 acpi_gbl_global_lock_handle; 217 ACPI_EXTERN u8 acpi_gbl_global_lock_acquired; 218 ACPI_EXTERN u8 acpi_gbl_global_lock_present; 219 ACPI_EXTERN u8 acpi_gbl_global_lock_pending; 220 221 /* 222 * Spinlocks are used for interfaces that can be possibly called at 223 * interrupt level 224 */ 225 ACPI_EXTERN acpi_spinlock acpi_gbl_gpe_lock; /* For GPE data structs and registers */ 226 ACPI_EXTERN acpi_spinlock acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ 227 ACPI_EXTERN acpi_spinlock acpi_gbl_reference_count_lock; 228 229 /* Mutex for _OSI support */ 230 231 ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex; 232 233 /* Reader/Writer lock is used for namespace walk and dynamic table unload */ 234 235 ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; 236 237 /***************************************************************************** 238 * 239 * Miscellaneous globals 240 * 241 ****************************************************************************/ 242 243 /* Object caches */ 244 245 ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache; 246 ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache; 247 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache; 248 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache; 249 ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache; 250 251 /* Global handlers */ 252 253 ACPI_EXTERN struct acpi_global_notify_handler acpi_gbl_global_notify[2]; 254 ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler; 255 ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler; 256 ACPI_EXTERN acpi_table_handler acpi_gbl_table_handler; 257 ACPI_EXTERN void *acpi_gbl_table_handler_context; 258 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; 259 ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler; 260 261 /* Owner ID support */ 262 263 ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]; 264 ACPI_EXTERN u8 acpi_gbl_last_owner_id_index; 265 ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset; 266 267 /* Initialization sequencing */ 268 269 ACPI_EXTERN u8 acpi_gbl_reg_methods_executed; 270 271 /* Misc */ 272 273 ACPI_EXTERN u32 acpi_gbl_original_mode; 274 ACPI_EXTERN u32 acpi_gbl_rsdp_original_location; 275 ACPI_EXTERN u32 acpi_gbl_ns_lookup_count; 276 ACPI_EXTERN u32 acpi_gbl_ps_find_count; 277 ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save; 278 ACPI_EXTERN u8 acpi_gbl_debugger_configuration; 279 ACPI_EXTERN u8 acpi_gbl_step_to_next_call; 280 ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; 281 ACPI_EXTERN u8 acpi_gbl_events_initialized; 282 ACPI_EXTERN u8 acpi_gbl_osi_data; 283 ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces; 284 ACPI_EXTERN struct acpi_address_range 285 *acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]; 286 287 #ifndef DEFINE_ACPI_GLOBALS 288 289 /* Other miscellaneous */ 290 291 extern u8 acpi_gbl_shutdown; 292 extern u32 acpi_gbl_startup_flags; 293 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT]; 294 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS]; 295 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS]; 296 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; 297 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS]; 298 299 #endif 300 301 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 302 303 /* Lists for tracking memory allocations */ 304 305 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list; 306 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list; 307 ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats; 308 ACPI_EXTERN u8 acpi_gbl_disable_mem_tracking; 309 #endif 310 311 /***************************************************************************** 312 * 313 * Namespace globals 314 * 315 ****************************************************************************/ 316 317 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) 318 #define NUM_PREDEFINED_NAMES 10 319 #else 320 #define NUM_PREDEFINED_NAMES 9 321 #endif 322 323 ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct; 324 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node; 325 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device; 326 ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list; 327 328 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES]; 329 extern const struct acpi_predefined_names 330 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES]; 331 332 #ifdef ACPI_DEBUG_OUTPUT 333 ACPI_EXTERN u32 acpi_gbl_current_node_count; 334 ACPI_EXTERN u32 acpi_gbl_current_node_size; 335 ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count; 336 ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer; 337 ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer; 338 ACPI_EXTERN u32 acpi_gbl_deepest_nesting; 339 #endif 340 341 /***************************************************************************** 342 * 343 * Interpreter globals 344 * 345 ****************************************************************************/ 346 347 ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list; 348 349 /* Control method single step flag */ 350 351 ACPI_EXTERN u8 acpi_gbl_cm_single_step; 352 353 /***************************************************************************** 354 * 355 * Hardware globals 356 * 357 ****************************************************************************/ 358 359 extern struct acpi_bit_register_info 360 acpi_gbl_bit_register_info[ACPI_NUM_BITREG]; 361 ACPI_EXTERN u8 acpi_gbl_sleep_type_a; 362 ACPI_EXTERN u8 acpi_gbl_sleep_type_b; 363 364 /***************************************************************************** 365 * 366 * Event and GPE globals 367 * 368 ****************************************************************************/ 369 370 #if (!ACPI_REDUCED_HARDWARE) 371 372 ACPI_EXTERN u8 acpi_gbl_all_gpes_initialized; 373 ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head; 374 ACPI_EXTERN struct acpi_gpe_block_info 375 *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]; 376 ACPI_EXTERN acpi_gbl_event_handler acpi_gbl_global_event_handler; 377 ACPI_EXTERN void *acpi_gbl_global_event_handler_context; 378 ACPI_EXTERN struct acpi_fixed_event_handler 379 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]; 380 extern struct acpi_fixed_event_info 381 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS]; 382 383 #endif /* !ACPI_REDUCED_HARDWARE */ 384 385 /***************************************************************************** 386 * 387 * Debug support 388 * 389 ****************************************************************************/ 390 391 /* Procedure nesting level for debug output */ 392 393 extern u32 acpi_gbl_nesting_level; 394 395 /* Event counters */ 396 397 ACPI_EXTERN u32 acpi_gpe_count; 398 ACPI_EXTERN u32 acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]; 399 400 /* Support for dynamic control method tracing mechanism */ 401 402 ACPI_EXTERN u32 acpi_gbl_original_dbg_level; 403 ACPI_EXTERN u32 acpi_gbl_original_dbg_layer; 404 ACPI_EXTERN u32 acpi_gbl_trace_dbg_level; 405 ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; 406 407 /***************************************************************************** 408 * 409 * Debugger and Disassembler globals 410 * 411 ****************************************************************************/ 412 413 ACPI_EXTERN u8 acpi_gbl_db_output_flags; 414 415 #ifdef ACPI_DISASSEMBLER 416 417 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_ignore_noop_operator, FALSE); 418 419 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm; 420 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose; 421 ACPI_EXTERN u8 acpi_gbl_num_external_methods; 422 ACPI_EXTERN u32 acpi_gbl_resolved_external_methods; 423 ACPI_EXTERN struct acpi_external_list *acpi_gbl_external_list; 424 ACPI_EXTERN struct acpi_external_file *acpi_gbl_external_file_list; 425 #endif 426 427 #ifdef ACPI_DEBUGGER 428 429 extern u8 acpi_gbl_method_executing; 430 extern u8 acpi_gbl_abort_method; 431 extern u8 acpi_gbl_db_terminate_threads; 432 433 ACPI_EXTERN u8 acpi_gbl_db_opt_tables; 434 ACPI_EXTERN u8 acpi_gbl_db_opt_stats; 435 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods; 436 ACPI_EXTERN u8 acpi_gbl_db_opt_no_region_support; 437 438 ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]; 439 ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]; 440 ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]; 441 ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]; 442 ACPI_EXTERN char acpi_gbl_db_scope_buf[80]; 443 ACPI_EXTERN char acpi_gbl_db_debug_filename[80]; 444 ACPI_EXTERN u8 acpi_gbl_db_output_to_file; 445 ACPI_EXTERN char *acpi_gbl_db_buffer; 446 ACPI_EXTERN char *acpi_gbl_db_filename; 447 ACPI_EXTERN u32 acpi_gbl_db_debug_level; 448 ACPI_EXTERN u32 acpi_gbl_db_console_debug_level; 449 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node; 450 451 /* 452 * Statistic globals 453 */ 454 ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 455 ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 456 ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc; 457 ACPI_EXTERN u16 acpi_gbl_node_type_count_misc; 458 ACPI_EXTERN u32 acpi_gbl_num_nodes; 459 ACPI_EXTERN u32 acpi_gbl_num_objects; 460 461 ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree; 462 ACPI_EXTERN u32 acpi_gbl_size_of_method_trees; 463 ACPI_EXTERN u32 acpi_gbl_size_of_node_entries; 464 ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects; 465 466 #endif /* ACPI_DEBUGGER */ 467 468 /***************************************************************************** 469 * 470 * Info/help support 471 * 472 ****************************************************************************/ 473 474 extern const struct ah_predefined_name asl_predefined_info[]; 475 476 #endif /* __ACGLOBAL_H__ */ 477