drivers/acpi/acpica/acglobal.h

   1 /******************************************************************************
   2  *
   3  * Name: acglobal.h - Declarations for global variables
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2015, 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  *
  49  * Globals related to the ACPI tables
  50  *
  51  ****************************************************************************/
  52
  53 /* Master list of all ACPI tables that were found in the RSDT/XSDT */
  54
  55 ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list);
  56
  57 /* DSDT information. Used to check for DSDT corruption */
  58
  59 ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT);
  60 ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header);
  61 ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX);
  62 ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX);
  63 ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX);
  64 ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX);
  65
  66 #if (!ACPI_REDUCED_HARDWARE)
  67 ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
  68
  69 #endif                          /* !ACPI_REDUCED_HARDWARE */
  70
  71 /* These addresses are calculated from the FADT Event Block addresses */
  72
  73 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_status);
  74 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_enable);
  75
  76 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_status);
  77 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_enable);
  78
  79 /*
  80  * Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is
  81  * determined by the revision of the DSDT: If the DSDT revision is less than
  82  * 2, use only the lower 32 bits of the internal 64-bit Integer.
  83  */
  84 ACPI_GLOBAL(u8, acpi_gbl_integer_bit_width);
  85 ACPI_GLOBAL(u8, acpi_gbl_integer_byte_width);
  86 ACPI_GLOBAL(u8, acpi_gbl_integer_nybble_width);
  87
  88 /*****************************************************************************
  89  *
  90  * Mutual exclusion within ACPICA subsystem
  91  *
  92  ****************************************************************************/
  93
  94 /*
  95  * Predefined mutex objects. This array contains the
  96  * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
  97  * (The table maps local handles to the real OS handles)
  98  */
  99 ACPI_GLOBAL(struct acpi_mutex_info, acpi_gbl_mutex_info[ACPI_NUM_MUTEX]);
 100
 101 /*
 102  * Global lock mutex is an actual AML mutex object
 103  * Global lock semaphore works in conjunction with the actual global lock
 104  * Global lock spinlock is used for "pending" handshake
 105  */
 106 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_global_lock_mutex);
 107 ACPI_GLOBAL(acpi_semaphore, acpi_gbl_global_lock_semaphore);
 108 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_global_lock_pending_lock);
 109 ACPI_GLOBAL(u16, acpi_gbl_global_lock_handle);
 110 ACPI_GLOBAL(u8, acpi_gbl_global_lock_acquired);
 111 ACPI_GLOBAL(u8, acpi_gbl_global_lock_present);
 112 ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending);
 113
 114 /*
 115  * Spinlocks are used for interfaces that can be possibly called at
 116  * interrupt level
 117  */
 118 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock);  /* For GPE data structs and registers */
 119 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_hardware_lock);     /* For ACPI H/W except GPE registers */
 120 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock);
 121
 122 /* Mutex for _OSI support */
 123
 124 ACPI_GLOBAL(acpi_mutex, acpi_gbl_osi_mutex);
 125
 126 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
 127
 128 ACPI_GLOBAL(struct acpi_rw_lock, acpi_gbl_namespace_rw_lock);
 129
 130 /*****************************************************************************
 131  *
 132  * Miscellaneous globals
 133  *
 134  ****************************************************************************/
 135
 136 /* Object caches */
 137
 138 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_namespace_cache);
 139 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_state_cache);
 140 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_cache);
 141 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_ext_cache);
 142 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache);
 143
 144 /* System */
 145
 146 ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0);
 147 ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE);
 148
 149 /* Global handlers */
 150
 151 ACPI_GLOBAL(struct acpi_global_notify_handler, acpi_gbl_global_notify[2]);
 152 ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler);
 153 ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler);
 154 ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler);
 155 ACPI_GLOBAL(void *, acpi_gbl_table_handler_context);
 156 ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler);
 157 ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list);
 158
 159 /* Owner ID support */
 160
 161 ACPI_GLOBAL(u32, acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]);
 162 ACPI_GLOBAL(u8, acpi_gbl_last_owner_id_index);
 163 ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset);
 164
 165 /* Initialization sequencing */
 166
 167 ACPI_GLOBAL(u8, acpi_gbl_reg_methods_executed);
 168
 169 /* Misc */
 170
 171 ACPI_GLOBAL(u32, acpi_gbl_original_mode);
 172 ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count);
 173 ACPI_GLOBAL(u32, acpi_gbl_ps_find_count);
 174 ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save);
 175 ACPI_GLOBAL(u8, acpi_gbl_debugger_configuration);
 176 ACPI_GLOBAL(u8, acpi_gbl_step_to_next_call);
 177 ACPI_GLOBAL(u8, acpi_gbl_acpi_hardware_present);
 178 ACPI_GLOBAL(u8, acpi_gbl_events_initialized);
 179 ACPI_GLOBAL(struct acpi_interface_info *, acpi_gbl_supported_interfaces);
 180 ACPI_GLOBAL(struct acpi_address_range *,
 181             acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]);
 182
 183 /* Other miscellaneous, declared and initialized in utglobal */
 184
 185 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
 186 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
 187 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
 188 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
 189 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
 190
 191 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 192
 193 /* Lists for tracking memory allocations (debug only) */
 194
 195 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list);
 196 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list);
 197 ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats);
 198 ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
 199 #endif
 200
 201 /*****************************************************************************
 202  *
 203  * Namespace globals
 204  *
 205  ****************************************************************************/
 206
 207 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
 208 #define NUM_PREDEFINED_NAMES            10
 209 #else
 210 #define NUM_PREDEFINED_NAMES            9
 211 #endif
 212
 213 ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
 214 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);
 215 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device);
 216 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_module_code_list);
 217
 218 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
 219 extern const struct acpi_predefined_names
 220     acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
 221
 222 #ifdef ACPI_DEBUG_OUTPUT
 223 ACPI_GLOBAL(u32, acpi_gbl_current_node_count);
 224 ACPI_GLOBAL(u32, acpi_gbl_current_node_size);
 225 ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count);
 226 ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer);
 227 ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer);
 228 ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting);
 229 ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0);
 230 #endif
 231
 232 /*****************************************************************************
 233  *
 234  * Interpreter globals
 235  *
 236  ****************************************************************************/
 237
 238 ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list);
 239
 240 /* Maximum number of While() loop iterations before forced abort */
 241
 242 ACPI_GLOBAL(u16, acpi_gbl_max_loop_iterations);
 243
 244 /* Control method single step flag */
 245
 246 ACPI_GLOBAL(u8, acpi_gbl_cm_single_step);
 247
 248 /*****************************************************************************
 249  *
 250  * Hardware globals
 251  *
 252  ****************************************************************************/
 253
 254 extern struct acpi_bit_register_info
 255     acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
 256
 257 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
 258 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
 259
 260 /*****************************************************************************
 261  *
 262  * Event and GPE globals
 263  *
 264  ****************************************************************************/
 265
 266 #if (!ACPI_REDUCED_HARDWARE)
 267
 268 ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized);
 269 ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head);
 270 ACPI_GLOBAL(struct acpi_gpe_block_info *,
 271             acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]);
 272 ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler);
 273 ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context);
 274 ACPI_GLOBAL(struct acpi_fixed_event_handler,
 275             acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]);
 276
 277 extern struct acpi_fixed_event_info
 278     acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
 279
 280 #endif                          /* !ACPI_REDUCED_HARDWARE */
 281
 282 /*****************************************************************************
 283  *
 284  * Debug support
 285  *
 286  ****************************************************************************/
 287
 288 /* Event counters */
 289
 290 ACPI_GLOBAL(u32, acpi_method_count);
 291 ACPI_GLOBAL(u32, acpi_gpe_count);
 292 ACPI_GLOBAL(u32, acpi_sci_count);
 293 ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
 294
 295 /* Support for dynamic control method tracing mechanism */
 296
 297 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
 298 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
 299
 300 /*****************************************************************************
 301  *
 302  * Debugger and Disassembler globals
 303  *
 304  ****************************************************************************/
 305
 306 ACPI_INIT_GLOBAL(u8, acpi_gbl_db_output_flags, ACPI_DB_CONSOLE_OUTPUT);
 307
 308 #ifdef ACPI_DISASSEMBLER
 309
 310 /* Do not disassemble buffers to resource descriptors */
 311
 312 ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
 313 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
 314 ACPI_INIT_GLOBAL(u8, acpi_gbl_cstyle_disassembly, TRUE);
 315 ACPI_INIT_GLOBAL(u8, acpi_gbl_force_aml_disassembly, FALSE);
 316 ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_opt_verbose, TRUE);
 317
 318 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_disasm);
 319 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_listing);
 320 ACPI_GLOBAL(u8, acpi_gbl_num_external_methods);
 321 ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods);
 322 ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list);
 323 ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
 324 #endif
 325
 326 #ifdef ACPI_DEBUGGER
 327
 328 ACPI_INIT_GLOBAL(u8, acpi_gbl_db_terminate_threads, FALSE);
 329 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
 330 ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE);
 331
 332 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods);
 333 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
 334 ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file);
 335 ACPI_GLOBAL(char *, acpi_gbl_db_buffer);
 336 ACPI_GLOBAL(char *, acpi_gbl_db_filename);
 337 ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
 338 ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
 339 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
 340
 341 ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
 342 ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
 343
 344 /* These buffers should all be the same size */
 345
 346 ACPI_GLOBAL(char, acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 347 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 348 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
 349 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
 350
 351 /*
 352  * Statistic globals
 353  */
 354 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TOTAL_TYPES]);
 355 ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TOTAL_TYPES]);
 356 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc);
 357 ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
 358 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
 359 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
 360
 361 #endif                          /* ACPI_DEBUGGER */
 362
 363 /*****************************************************************************
 364  *
 365  * Application globals
 366  *
 367  ****************************************************************************/
 368
 369 #ifdef ACPI_APPLICATION
 370
 371 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
 372 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_output_file, NULL);
 373
 374 /* Print buffer */
 375
 376 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_print_lock);        /* For print buffer */
 377 ACPI_GLOBAL(char, acpi_gbl_print_buffer[1024]);
 378
 379 #endif                          /* ACPI_APPLICATION */
 380
 381 /*****************************************************************************
 382  *
 383  * Info/help support
 384  *
 385  ****************************************************************************/
 386
 387 extern const struct ah_predefined_name asl_predefined_info[];
 388 extern const struct ah_device_id asl_device_ids[];
 389
 390 #endif                          /* __ACGLOBAL_H__ */