1 /****************************************************************************** 2 * 3 * Name: acglobal.h - Declarations for global variables 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2008, 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 /***************************************************************************** 62 * 63 * Runtime configuration (static defaults that can be overriden at runtime) 64 * 65 ****************************************************************************/ 66 67 /* 68 * Enable "slack" in the AML interpreter? Default is FALSE, and the 69 * interpreter strictly follows the ACPI specification. Setting to TRUE 70 * allows the interpreter to ignore certain errors and/or bad AML constructs. 71 * 72 * Currently, these features are enabled by this flag: 73 * 74 * 1) Allow "implicit return" of last value in a control method 75 * 2) Allow access beyond the end of an operation region 76 * 3) Allow access to uninitialized locals/args (auto-init to integer 0) 77 * 4) Allow ANY object type to be a source operand for the Store() operator 78 * 5) Allow unresolved references (invalid target name) in package objects 79 * 6) Enable warning messages for behavior that is not ACPI spec compliant 80 */ 81 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE); 82 83 /* 84 * Automatically serialize ALL control methods? Default is FALSE, meaning 85 * to use the Serialized/not_serialized method flags on a per method basis. 86 * Only change this if the ASL code is poorly written and cannot handle 87 * reentrancy even though methods are marked "NotSerialized". 88 */ 89 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE); 90 91 /* 92 * Create the predefined _OSI method in the namespace? Default is TRUE 93 * because ACPI CA is fully compatible with other ACPI implementations. 94 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior. 95 */ 96 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE); 97 98 /* 99 * Disable wakeup GPEs during runtime? Default is TRUE because WAKE and 100 * RUNTIME GPEs should never be shared, and WAKE GPEs should typically only 101 * be enabled just before going to sleep. 102 */ 103 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE); 104 105 /* 106 * Optionally use default values for the ACPI register widths. Set this to 107 * TRUE to use the defaults, if an FADT contains incorrect widths/lengths. 108 */ 109 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE); 110 111 /***************************************************************************** 112 * 113 * Debug support 114 * 115 ****************************************************************************/ 116 117 /* Runtime configuration of debug print levels */ 118 119 extern u32 acpi_dbg_level; 120 extern u32 acpi_dbg_layer; 121 122 /* Procedure nesting level for debug output */ 123 124 extern u32 acpi_gbl_nesting_level; 125 126 /* Support for dynamic control method tracing mechanism */ 127 128 ACPI_EXTERN u32 acpi_gbl_original_dbg_level; 129 ACPI_EXTERN u32 acpi_gbl_original_dbg_layer; 130 ACPI_EXTERN acpi_name acpi_gbl_trace_method_name; 131 ACPI_EXTERN u32 acpi_gbl_trace_dbg_level; 132 ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; 133 ACPI_EXTERN u32 acpi_gbl_trace_flags; 134 135 /***************************************************************************** 136 * 137 * ACPI Table globals 138 * 139 ****************************************************************************/ 140 141 /* 142 * acpi_gbl_root_table_list is the master list of ACPI tables found in the 143 * RSDT/XSDT. 144 * 145 * acpi_gbl_FADT is a local copy of the FADT, converted to a common format. 146 */ 147 ACPI_EXTERN struct acpi_internal_rsdt acpi_gbl_root_table_list; 148 ACPI_EXTERN struct acpi_table_fadt acpi_gbl_FADT; 149 ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS; 150 151 /* These addresses are calculated from the FADT Event Block addresses */ 152 153 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status; 154 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable; 155 156 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status; 157 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable; 158 159 /* 160 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is 161 * determined by the revision of the DSDT: If the DSDT revision is less than 162 * 2, use only the lower 32 bits of the internal 64-bit Integer. 163 */ 164 ACPI_EXTERN u8 acpi_gbl_integer_bit_width; 165 ACPI_EXTERN u8 acpi_gbl_integer_byte_width; 166 ACPI_EXTERN u8 acpi_gbl_integer_nybble_width; 167 168 /* Reader/Writer lock is used for namespace walk and dynamic table unload */ 169 170 ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock; 171 172 /***************************************************************************** 173 * 174 * Mutual exlusion within ACPICA subsystem 175 * 176 ****************************************************************************/ 177 178 /* 179 * Predefined mutex objects. This array contains the 180 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs. 181 * (The table maps local handles to the real OS handles) 182 */ 183 ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX]; 184 185 /* 186 * Global lock mutex is an actual AML mutex object 187 * Global lock semaphore works in conjunction with the HW global lock 188 */ 189 ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex; 190 ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore; 191 ACPI_EXTERN u16 acpi_gbl_global_lock_handle; 192 ACPI_EXTERN u8 acpi_gbl_global_lock_acquired; 193 ACPI_EXTERN u8 acpi_gbl_global_lock_present; 194 195 /* 196 * Spinlocks are used for interfaces that can be possibly called at 197 * interrupt level 198 */ 199 ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */ 200 ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */ 201 #define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock 202 #define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock 203 204 /***************************************************************************** 205 * 206 * Miscellaneous globals 207 * 208 ****************************************************************************/ 209 210 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 211 212 /* Lists for tracking memory allocations */ 213 214 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list; 215 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list; 216 ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats; 217 #endif 218 219 /* Object caches */ 220 221 ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache; 222 ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache; 223 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache; 224 ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache; 225 ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache; 226 227 /* Global handlers */ 228 229 ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify; 230 ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify; 231 ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler; 232 ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler; 233 ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler; 234 ACPI_EXTERN void *acpi_gbl_table_handler_context; 235 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; 236 237 /* Owner ID support */ 238 239 ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]; 240 ACPI_EXTERN u8 acpi_gbl_last_owner_id_index; 241 ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset; 242 243 /* Misc */ 244 245 ACPI_EXTERN u32 acpi_gbl_original_mode; 246 ACPI_EXTERN u32 acpi_gbl_rsdp_original_location; 247 ACPI_EXTERN u32 acpi_gbl_ns_lookup_count; 248 ACPI_EXTERN u32 acpi_gbl_ps_find_count; 249 ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save; 250 ACPI_EXTERN u8 acpi_gbl_debugger_configuration; 251 ACPI_EXTERN u8 acpi_gbl_step_to_next_call; 252 ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; 253 ACPI_EXTERN u8 acpi_gbl_events_initialized; 254 ACPI_EXTERN u8 acpi_gbl_system_awake_and_running; 255 ACPI_EXTERN u8 acpi_gbl_osi_data; 256 257 #ifndef DEFINE_ACPI_GLOBALS 258 259 /* Other miscellaneous */ 260 261 extern u8 acpi_gbl_shutdown; 262 extern u32 acpi_gbl_startup_flags; 263 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT]; 264 extern const char *acpi_gbl_highest_dstate_names[4]; 265 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; 266 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS]; 267 268 #endif 269 270 /* Exception codes */ 271 272 extern char const *acpi_gbl_exception_names_env[]; 273 extern char const *acpi_gbl_exception_names_pgm[]; 274 extern char const *acpi_gbl_exception_names_tbl[]; 275 extern char const *acpi_gbl_exception_names_aml[]; 276 extern char const *acpi_gbl_exception_names_ctrl[]; 277 278 /***************************************************************************** 279 * 280 * Namespace globals 281 * 282 ****************************************************************************/ 283 284 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) 285 #define NUM_PREDEFINED_NAMES 10 286 #else 287 #define NUM_PREDEFINED_NAMES 9 288 #endif 289 290 ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct; 291 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node; 292 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device; 293 294 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES]; 295 extern const struct acpi_predefined_names 296 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES]; 297 298 #ifdef ACPI_DEBUG_OUTPUT 299 ACPI_EXTERN u32 acpi_gbl_current_node_count; 300 ACPI_EXTERN u32 acpi_gbl_current_node_size; 301 ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count; 302 ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer; 303 ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer; 304 ACPI_EXTERN u32 acpi_gbl_deepest_nesting; 305 #endif 306 307 /***************************************************************************** 308 * 309 * Interpreter globals 310 * 311 ****************************************************************************/ 312 313 ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list; 314 315 /* Control method single step flag */ 316 317 ACPI_EXTERN u8 acpi_gbl_cm_single_step; 318 319 /***************************************************************************** 320 * 321 * Hardware globals 322 * 323 ****************************************************************************/ 324 325 extern struct acpi_bit_register_info 326 acpi_gbl_bit_register_info[ACPI_NUM_BITREG]; 327 ACPI_EXTERN u8 acpi_gbl_sleep_type_a; 328 ACPI_EXTERN u8 acpi_gbl_sleep_type_b; 329 330 /***************************************************************************** 331 * 332 * Event and GPE globals 333 * 334 ****************************************************************************/ 335 336 extern struct acpi_fixed_event_info 337 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS]; 338 ACPI_EXTERN struct acpi_fixed_event_handler 339 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]; 340 ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head; 341 ACPI_EXTERN struct acpi_gpe_block_info 342 *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]; 343 ACPI_EXTERN u32 acpi_current_gpe_count; 344 345 /***************************************************************************** 346 * 347 * Debugger globals 348 * 349 ****************************************************************************/ 350 351 ACPI_EXTERN u8 acpi_gbl_db_output_flags; 352 353 #ifdef ACPI_DISASSEMBLER 354 355 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm; 356 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose; 357 #endif 358 359 #ifdef ACPI_DEBUGGER 360 361 extern u8 acpi_gbl_method_executing; 362 extern u8 acpi_gbl_abort_method; 363 extern u8 acpi_gbl_db_terminate_threads; 364 365 ACPI_EXTERN int optind; 366 ACPI_EXTERN char *optarg; 367 368 ACPI_EXTERN u8 acpi_gbl_db_opt_tables; 369 ACPI_EXTERN u8 acpi_gbl_db_opt_stats; 370 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods; 371 372 ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]; 373 ACPI_EXTERN char acpi_gbl_db_line_buf[80]; 374 ACPI_EXTERN char acpi_gbl_db_parsed_buf[80]; 375 ACPI_EXTERN char acpi_gbl_db_scope_buf[40]; 376 ACPI_EXTERN char acpi_gbl_db_debug_filename[40]; 377 ACPI_EXTERN u8 acpi_gbl_db_output_to_file; 378 ACPI_EXTERN char *acpi_gbl_db_buffer; 379 ACPI_EXTERN char *acpi_gbl_db_filename; 380 ACPI_EXTERN u32 acpi_gbl_db_debug_level; 381 ACPI_EXTERN u32 acpi_gbl_db_console_debug_level; 382 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node; 383 384 /* 385 * Statistic globals 386 */ 387 ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 388 ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1]; 389 ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc; 390 ACPI_EXTERN u16 acpi_gbl_node_type_count_misc; 391 ACPI_EXTERN u32 acpi_gbl_num_nodes; 392 ACPI_EXTERN u32 acpi_gbl_num_objects; 393 394 ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree; 395 ACPI_EXTERN u32 acpi_gbl_size_of_method_trees; 396 ACPI_EXTERN u32 acpi_gbl_size_of_node_entries; 397 ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects; 398 399 #endif /* ACPI_DEBUGGER */ 400 401 #endif /* __ACGLOBAL_H__ */ 402