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