drivers/acpi/acpica/acglobal.h

   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2 /******************************************************************************
   3  *
   4  * Name: acglobal.h - Declarations for global variables
   5  *
   6  * Copyright (C) 2000 - 2020, Intel Corp.
   7  *
   8  *****************************************************************************/
   9
  10 #ifndef __ACGLOBAL_H__
  11 #define __ACGLOBAL_H__
  12
  13 /*****************************************************************************
  14  *
  15  * Globals related to the incoming ACPI tables
  16  *
  17  ****************************************************************************/
  18
  19 /* Master list of all ACPI tables that were found in the RSDT/XSDT */
  20
  21 ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list);
  22
  23 /* DSDT information. Used to check for DSDT corruption */
  24
  25 ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT);
  26 ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header);
  27 ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX);
  28 ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX);
  29 ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX);
  30 ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX);
  31
  32 #if (!ACPI_REDUCED_HARDWARE)
  33 ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
  34
  35 #endif                          /* !ACPI_REDUCED_HARDWARE */
  36
  37 /* These addresses are calculated from the FADT Event Block addresses */
  38
  39 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_status);
  40 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_enable);
  41
  42 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_status);
  43 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_enable);
  44
  45 /*
  46  * Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is
  47  * determined by the revision of the DSDT: If the DSDT revision is less than
  48  * 2, use only the lower 32 bits of the internal 64-bit Integer.
  49  */
  50 ACPI_GLOBAL(u8, acpi_gbl_integer_bit_width);
  51 ACPI_GLOBAL(u8, acpi_gbl_integer_byte_width);
  52 ACPI_GLOBAL(u8, acpi_gbl_integer_nybble_width);
  53
  54 /*****************************************************************************
  55  *
  56  * Mutual exclusion within the ACPICA subsystem
  57  *
  58  ****************************************************************************/
  59
  60 /*
  61  * Predefined mutex objects. This array contains the
  62  * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
  63  * (The table maps local handles to the real OS handles)
  64  */
  65 ACPI_GLOBAL(struct acpi_mutex_info, acpi_gbl_mutex_info[ACPI_NUM_MUTEX]);
  66
  67 /*
  68  * Global lock mutex is an actual AML mutex object
  69  * Global lock semaphore works in conjunction with the actual global lock
  70  * Global lock spinlock is used for "pending" handshake
  71  */
  72 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_global_lock_mutex);
  73 ACPI_GLOBAL(acpi_semaphore, acpi_gbl_global_lock_semaphore);
  74 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_global_lock_pending_lock);
  75 ACPI_GLOBAL(u16, acpi_gbl_global_lock_handle);
  76 ACPI_GLOBAL(u8, acpi_gbl_global_lock_acquired);
  77 ACPI_GLOBAL(u8, acpi_gbl_global_lock_present);
  78 ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending);
  79
  80 /*
  81  * Spinlocks are used for interfaces that can be possibly called at
  82  * interrupt level
  83  */
  84 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock);  /* For GPE data structs and registers */
  85 ACPI_GLOBAL(acpi_raw_spinlock, acpi_gbl_hardware_lock); /* For ACPI H/W except GPE registers */
  86 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock);
  87
  88 /* Mutex for _OSI support */
  89
  90 ACPI_GLOBAL(acpi_mutex, acpi_gbl_osi_mutex);
  91
  92 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
  93
  94 ACPI_GLOBAL(struct acpi_rw_lock, acpi_gbl_namespace_rw_lock);
  95
  96 /*****************************************************************************
  97  *
  98  * Miscellaneous globals
  99  *
 100  ****************************************************************************/
 101
 102 /* Object caches */
 103
 104 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_namespace_cache);
 105 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_state_cache);
 106 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_cache);
 107 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_ext_cache);
 108 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache);
 109
 110 /* System */
 111
 112 ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0);
 113 ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE);
 114 ACPI_INIT_GLOBAL(u8, acpi_gbl_early_initialization, TRUE);
 115
 116 /* Global handlers */
 117
 118 ACPI_GLOBAL(struct acpi_global_notify_handler, acpi_gbl_global_notify[2]);
 119 ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler);
 120 ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler);
 121 ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler);
 122 ACPI_GLOBAL(void *, acpi_gbl_table_handler_context);
 123 ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler);
 124 ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list);
 125
 126 /* Owner ID support */
 127
 128 ACPI_GLOBAL(u32, acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]);
 129 ACPI_GLOBAL(u8, acpi_gbl_last_owner_id_index);
 130 ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset);
 131
 132 /* Initialization sequencing */
 133
 134 ACPI_INIT_GLOBAL(u8, acpi_gbl_namespace_initialized, FALSE);
 135
 136 /* Miscellaneous */
 137
 138 ACPI_GLOBAL(u32, acpi_gbl_original_mode);
 139 ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count);
 140 ACPI_GLOBAL(u32, acpi_gbl_ps_find_count);
 141 ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save);
 142 ACPI_GLOBAL(u8, acpi_gbl_debugger_configuration);
 143 ACPI_GLOBAL(u8, acpi_gbl_step_to_next_call);
 144 ACPI_GLOBAL(u8, acpi_gbl_acpi_hardware_present);
 145 ACPI_GLOBAL(u8, acpi_gbl_events_initialized);
 146 ACPI_GLOBAL(struct acpi_interface_info *, acpi_gbl_supported_interfaces);
 147 ACPI_GLOBAL(struct acpi_address_range *,
 148             acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]);
 149
 150 /* Other miscellaneous, declared and initialized in utglobal */
 151
 152 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
 153 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
 154 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
 155 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
 156 extern const char acpi_gbl_lower_hex_digits[];
 157 extern const char acpi_gbl_upper_hex_digits[];
 158 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
 159
 160 /* Lists for tracking memory allocations (debug only) */
 161
 162 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 163 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list);
 164 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list);
 165 ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats);
 166 ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
 167 ACPI_GLOBAL(u8, acpi_gbl_verbose_leak_dump);
 168 #endif
 169
 170 /*****************************************************************************
 171  *
 172  * ACPI Namespace
 173  *
 174  ****************************************************************************/
 175
 176 #define NUM_PREDEFINED_NAMES            10
 177
 178 ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
 179 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);
 180 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device);
 181
 182 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
 183 extern const struct acpi_predefined_names
 184     acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
 185
 186 #ifdef ACPI_DEBUG_OUTPUT
 187 ACPI_GLOBAL(u32, acpi_gbl_current_node_count);
 188 ACPI_GLOBAL(u32, acpi_gbl_current_node_size);
 189 ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count);
 190 ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer);
 191 ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer);
 192 ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting);
 193 ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0);
 194 #endif
 195
 196 /*****************************************************************************
 197  *
 198  * Interpreter/Parser globals
 199  *
 200  ****************************************************************************/
 201
 202 /* Control method single step flag */
 203
 204 ACPI_GLOBAL(u8, acpi_gbl_cm_single_step);
 205 ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list);
 206 ACPI_INIT_GLOBAL(union acpi_parse_object, *acpi_gbl_current_scope, NULL);
 207
 208 /* ASL/ASL+ converter */
 209
 210 ACPI_INIT_GLOBAL(u8, acpi_gbl_capture_comments, FALSE);
 211 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_last_list_head, NULL);
 212
 213 /*****************************************************************************
 214  *
 215  * Hardware globals
 216  *
 217  ****************************************************************************/
 218
 219 extern struct acpi_bit_register_info
 220     acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
 221 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
 222 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
 223
 224 /*****************************************************************************
 225  *
 226  * Event and GPE globals
 227  *
 228  ****************************************************************************/
 229
 230 #if (!ACPI_REDUCED_HARDWARE)
 231 ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized);
 232 ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head);
 233 ACPI_GLOBAL(struct acpi_gpe_block_info *,
 234             acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]);
 235 ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler);
 236 ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context);
 237 ACPI_GLOBAL(struct acpi_fixed_event_handler,
 238             acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]);
 239 extern struct acpi_fixed_event_info
 240     acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
 241 #endif                          /* !ACPI_REDUCED_HARDWARE */
 242
 243 /*****************************************************************************
 244  *
 245  * Debug support
 246  *
 247  ****************************************************************************/
 248
 249 /* Event counters */
 250
 251 ACPI_GLOBAL(u32, acpi_method_count);
 252 ACPI_GLOBAL(u32, acpi_gpe_count);
 253 ACPI_GLOBAL(u32, acpi_sci_count);
 254 ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
 255
 256 /* Dynamic control method tracing mechanism */
 257
 258 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
 259 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
 260
 261 /*****************************************************************************
 262  *
 263  * Debugger and Disassembler
 264  *
 265  ****************************************************************************/
 266
 267 ACPI_INIT_GLOBAL(u8, acpi_gbl_db_output_flags, ACPI_DB_CONSOLE_OUTPUT);
 268
 269 #ifdef ACPI_DISASSEMBLER
 270
 271 /* Do not disassemble buffers to resource descriptors */
 272
 273 ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
 274 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
 275 ACPI_INIT_GLOBAL(u8, acpi_gbl_cstyle_disassembly, TRUE);
 276 ACPI_INIT_GLOBAL(u8, acpi_gbl_force_aml_disassembly, FALSE);
 277 ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_opt_verbose, TRUE);
 278 ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_emit_external_opcodes, FALSE);
 279 ACPI_INIT_GLOBAL(u8, acpi_gbl_do_disassembler_optimizations, TRUE);
 280 ACPI_INIT_GLOBAL(ACPI_PARSE_OBJECT_LIST, *acpi_gbl_temp_list_head, NULL);
 281
 282 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_disasm);
 283 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_listing);
 284 ACPI_GLOBAL(u8, acpi_gbl_num_external_methods);
 285 ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods);
 286 ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list);
 287 ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
 288 #endif
 289
 290 #ifdef ACPI_DEBUGGER
 291 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
 292 ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID);
 293
 294 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods);
 295 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
 296 ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file);
 297 ACPI_GLOBAL(char *, acpi_gbl_db_buffer);
 298 ACPI_GLOBAL(char *, acpi_gbl_db_filename);
 299 ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
 300 ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
 301 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
 302 ACPI_GLOBAL(u8, acpi_gbl_db_terminate_loop);
 303 ACPI_GLOBAL(u8, acpi_gbl_db_threads_terminated);
 304 ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
 305 ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
 306
 307 /* These buffers should all be the same size */
 308
 309 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 310 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 311 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
 312
 313 /* Statistics globals */
 314
 315 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TOTAL_TYPES]);
 316 ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TOTAL_TYPES]);
 317 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc);
 318 ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
 319 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
 320 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
 321 #endif                          /* ACPI_DEBUGGER */
 322
 323 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
 324 ACPI_GLOBAL(const char, *acpi_gbl_pld_panel_list[]);
 325 ACPI_GLOBAL(const char, *acpi_gbl_pld_vertical_position_list[]);
 326 ACPI_GLOBAL(const char, *acpi_gbl_pld_horizontal_position_list[]);
 327 ACPI_GLOBAL(const char, *acpi_gbl_pld_shape_list[]);
 328 ACPI_INIT_GLOBAL(u8, acpi_gbl_disasm_flag, FALSE);
 329 #endif
 330
 331 /*****************************************************************************
 332  *
 333  * ACPICA application-specific globals
 334  *
 335  ****************************************************************************/
 336
 337 /* ASL-to-ASL+ conversion utility (implemented within the iASL compiler) */
 338
 339 #ifdef ACPI_ASL_COMPILER
 340 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_inline_comment, NULL);
 341 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_end_node_comment, NULL);
 342 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_open_brace_comment, NULL);
 343 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_close_brace_comment, NULL);
 344
 345 ACPI_INIT_GLOBAL(char *, acpi_gbl_root_filename, NULL);
 346 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_filename, NULL);
 347 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_parent_filename, NULL);
 348 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_include_filename, NULL);
 349
 350 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_head,
 351                  NULL);
 352 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_tail,
 353                  NULL);
 354 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_head,
 355                  NULL);
 356 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_tail,
 357                  NULL);
 358 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_head,
 359                  NULL);
 360 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_tail,
 361                  NULL);
 362 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_head,
 363                  NULL);
 364 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_tail,
 365                  NULL);
 366
 367 ACPI_INIT_GLOBAL(struct acpi_comment_addr_node,
 368                  *acpi_gbl_comment_addr_list_head, NULL);
 369 ACPI_INIT_GLOBAL(struct acpi_file_node, *acpi_gbl_file_tree_root, NULL);
 370
 371 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_reg_comment_cache);
 372 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_comment_addr_cache);
 373 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_file_cache);
 374
 375 ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_asl_conversion, FALSE);
 376 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_conv_debug_file, NULL);
 377 ACPI_GLOBAL(char, acpi_gbl_table_sig[4]);
 378 #endif
 379
 380 #ifdef ACPI_APPLICATION
 381 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
 382 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_output_file, NULL);
 383 ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_timeout, FALSE);
 384
 385 /* Print buffer */
 386
 387 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_print_lock);        /* For print buffer */
 388 ACPI_GLOBAL(char, acpi_gbl_print_buffer[1024]);
 389 #endif                          /* ACPI_APPLICATION */
 390
 391 #endif                          /* __ACGLOBAL_H__ */