1 /****************************************************************************** 2 * 3 * Name: acglobal.h - Declarations for global variables 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2011, 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 u32 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 /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ 130 131 struct acpi_table_fadt acpi_gbl_FADT; 132 u32 acpi_current_gpe_count; 133 u32 acpi_gbl_trace_flags; 134 acpi_name acpi_gbl_trace_method_name; 135 u8 acpi_gbl_system_awake_and_running; 136 137 #endif 138 139 /***************************************************************************** 140 * 141 * Debug support 142 * 143 ****************************************************************************/ 144 145 /* Procedure nesting level for debug output */ 146 147 extern u32 acpi_gbl_nesting_level; 148 149 ACPI_EXTERN u32 acpi_gpe_count; 150 ACPI_EXTERN u32 acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]; 151 152 /* Support for dynamic control method tracing mechanism */ 153 154 ACPI_EXTERN u32 acpi_gbl_original_dbg_level; 155 ACPI_EXTERN u32 acpi_gbl_original_dbg_layer; 156 ACPI_EXTERN u32 acpi_gbl_trace_dbg_level; 157 ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; 158 159 /***************************************************************************** 160 * 161 * ACPI Table globals 162 * 163 ****************************************************************************/ 164 165 /* 166 * acpi_gbl_root_table_list is the master list of ACPI tables that were 167 * found in the RSDT/XSDT. 168 */ 169 ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list; 170 ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS; 171 172 /* These addresses are calculated from the FADT Event Block addresses */ 173 174 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status; 175 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable; 176 177 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status; 178 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable; 179 180 /* DSDT information. Used to check for DSDT corruption */ 181 182 ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT; 183 ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header; 184 185 /* 186 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is 187 * determined by the revision of the DSDT: If the DSDT revision is less than 188 * 2, use only the lower 32 bits of the internal 64-bit Integer. 189 */ 190 ACPI_EXTERN u8 acpi_gbl_integer_bit_width; 191 ACPI_EXTERN u8 acpi_gbl_integer_byte_width; 192 ACPI_EXTERN u8 acpi_gbl_integer_nybble_width; 193 194 /* Mutex for _OSI support */ 195 196 ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex; 197 198 /* Reader/Writer lock is used for namespace walk and dynamic table unload */ 199 200 ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; 201 202 /***************************************************************************** 203 * 204 * Mutual exlusion within ACPICA subsystem 205 * 206 ****************************************************************************/ 207 208 /* 209 * Predefined mutex objects. This array contains the 210 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs. 211 * (The table maps local handles to the real OS handles) 212 */ 213 ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX]; 214 215 /* 216 * Global lock mutex is an actual AML mutex object 217 * Global lock semaphore works in conjunction with the HW global lock 218 */ 219 ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex; 220 ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore; 221 ACPI_EXTERN u16 acpi_gbl_global_lock_handle; 222 ACPI_EXTERN u8 acpi_gbl_global_lock_acquired; 223 ACPI_EXTERN u8 acpi_gbl_global_lock_present; 224 225 /* 226 * Spinlocks are used for interfaces that can be possibly called at 227 * interrupt level 228 */ 229 ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */ 230 ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ 231 ACPI_EXTERN spinlock_t _acpi_ev_global_lock_pending_lock; /* For global lock */ 232 #define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock 233 #define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock 234 #define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock 235 236 /***************************************************************************** 237 * 238 * Miscellaneous globals 239 * 240 ****************************************************************************/ 241 242 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 243 244 /* Lists for tracking memory allocations */ 245 246 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list; 247 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list; 248 ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats; 249 #endif 250 251 /* Object caches */ 252 253 ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache; 254 ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache; 255 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache; 256 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache; 257 ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache; 258 259 /* Global handlers */ 260 261 ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify; 262 ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify; 263 ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler; 264 ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler; 265 ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler; 266 ACPI_EXTERN void *acpi_gbl_table_handler_context; 267 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; 268 ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler; 269 270 /* Owner ID support */ 271 272 ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]; 273 ACPI_EXTERN u8 acpi_gbl_last_owner_id_index; 274 ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset; 275 276 /* Initialization sequencing */ 277 278 ACPI_EXTERN u8 acpi_gbl_reg_methods_executed; 279 280 /* Misc */ 281 282 ACPI_EXTERN u32 acpi_gbl_original_mode; 283 ACPI_EXTERN u32 acpi_gbl_rsdp_original_location; 284 ACPI_EXTERN u32 acpi_gbl_ns_lookup_count; 285 ACPI_EXTERN u32 acpi_gbl_ps_find_count; 286 ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save; 287 ACPI_EXTERN u8 acpi_gbl_debugger_configuration; 288 ACPI_EXTERN u8 acpi_gbl_step_to_next_call; 289 ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; 290 ACPI_EXTERN u8 acpi_gbl_events_initialized; 291 ACPI_EXTERN u8 acpi_gbl_osi_data; 292 ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces; 293 294 #ifndef DEFINE_ACPI_GLOBALS 295 296 /* Other miscellaneous */ 297 298 extern u8 acpi_gbl_shutdown; 299 extern u32 acpi_gbl_startup_flags; 300 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT]; 301 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS]; 302 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS]; 303 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; 304 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS]; 305 306 #endif 307 308 /* Exception codes */ 309 310 extern char const *acpi_gbl_exception_names_env[]; 311 extern char const *acpi_gbl_exception_names_pgm[]; 312 extern char const *acpi_gbl_exception_names_tbl[]; 313 extern char const *acpi_gbl_exception_names_aml[]; 314 extern char const *acpi_gbl_exception_names_ctrl[]; 315 316 /***************************************************************************** 317 * 318 * Namespace globals 319 * 320 ****************************************************************************/ 321 322 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) 323 #define NUM_PREDEFINED_NAMES 10 324 #else 325 #define NUM_PREDEFINED_NAMES 9 326 #endif 327 328 ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct; 329 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node; 330 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device; 331 ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list; 332 333 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES]; 334 extern const struct acpi_predefined_names 335 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES]; 336 337 #ifdef ACPI_DEBUG_OUTPUT 338 ACPI_EXTERN u32 acpi_gbl_current_node_count; 339 ACPI_EXTERN u32 acpi_gbl_current_node_size; 340 ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count; 341 ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer; 342 ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer; 343 ACPI_EXTERN u32 acpi_gbl_deepest_nesting; 344 #endif 345 346 /***************************************************************************** 347 * 348 * Interpreter globals 349 * 350 ****************************************************************************/ 351 352 ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list; 353 354 /* Control method single step flag */ 355 356 ACPI_EXTERN u8 acpi_gbl_cm_single_step; 357 358 /***************************************************************************** 359 * 360 * Hardware globals 361 * 362 ****************************************************************************/ 363 364 extern struct acpi_bit_register_info 365 acpi_gbl_bit_register_info[ACPI_NUM_BITREG]; 366 ACPI_EXTERN u8 acpi_gbl_sleep_type_a; 367 ACPI_EXTERN u8 acpi_gbl_sleep_type_b; 368 369 /***************************************************************************** 370 * 371 * Event and GPE globals 372 * 373 ****************************************************************************/ 374 375 extern struct acpi_fixed_event_info 376 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS]; 377 ACPI_EXTERN struct acpi_fixed_event_handler 378 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]; 379 ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head; 380 ACPI_EXTERN struct acpi_gpe_block_info 381 *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]; 382 ACPI_EXTERN u8 acpi_gbl_all_gpes_initialized; 383 ACPI_EXTERN ACPI_GBL_EVENT_HANDLER acpi_gbl_global_event_handler; 384 ACPI_EXTERN void *acpi_gbl_global_event_handler_context; 385 386 /***************************************************************************** 387 * 388 * Debugger globals 389 * 390 ****************************************************************************/ 391 392 ACPI_EXTERN u8 acpi_gbl_db_output_flags; 393 394 #ifdef ACPI_DISASSEMBLER 395 396 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm; 397 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose; 398 #endif 399 400 #ifdef ACPI_DEBUGGER 401 402 extern u8 acpi_gbl_method_executing; 403 extern u8 acpi_gbl_abort_method; 404 extern u8 acpi_gbl_db_terminate_threads; 405 406 ACPI_EXTERN u8 acpi_gbl_db_opt_tables; 407 ACPI_EXTERN u8 acpi_gbl_db_opt_stats; 408 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods; 409 410 ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]; 411 ACPI_EXTERN char acpi_gbl_db_line_buf[80]; 412 ACPI_EXTERN char acpi_gbl_db_parsed_buf[80]; 413 ACPI_EXTERN char acpi_gbl_db_scope_buf[40]; 414 ACPI_EXTERN char acpi_gbl_db_debug_filename[40]; 415 ACPI_EXTERN u8 acpi_gbl_db_output_to_file; 416 ACPI_EXTERN char *acpi_gbl_db_buffer; 417 ACPI_EXTERN char *acpi_gbl_db_filename; 418 ACPI_EXTERN u32 acpi_gbl_db_debug_level; 419 ACPI_EXTERN u32 acpi_gbl_db_console_debug_level; 420 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node; 421 422 /* 423 * Statistic globals 424 */ 425 ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 426 ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 427 ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc; 428 ACPI_EXTERN u16 acpi_gbl_node_type_count_misc; 429 ACPI_EXTERN u32 acpi_gbl_num_nodes; 430 ACPI_EXTERN u32 acpi_gbl_num_objects; 431 432 ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree; 433 ACPI_EXTERN u32 acpi_gbl_size_of_method_trees; 434 ACPI_EXTERN u32 acpi_gbl_size_of_node_entries; 435 ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects; 436 437 #endif /* ACPI_DEBUGGER */ 438 439 #endif /* __ACGLOBAL_H__ */ 440