1 /****************************************************************************** 2 * 3 * Module Name: utglobal - Global variables for the ACPI subsystem 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2014, 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 #define EXPORT_ACPI_INTERFACES 45 #define DEFINE_ACPI_GLOBALS 46 47 #include <acpi/acpi.h> 48 #include "accommon.h" 49 50 #define _COMPONENT ACPI_UTILITIES 51 ACPI_MODULE_NAME("utglobal") 52 53 /******************************************************************************* 54 * 55 * Static global variable initialization. 56 * 57 ******************************************************************************/ 58 /* Various state name strings */ 59 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = { 60 "\\_S0_", 61 "\\_S1_", 62 "\\_S2_", 63 "\\_S3_", 64 "\\_S4_", 65 "\\_S5_" 66 }; 67 68 const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = { 69 "_S0W", 70 "_S1W", 71 "_S2W", 72 "_S3W", 73 "_S4W" 74 }; 75 76 const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = { 77 "_S1D", 78 "_S2D", 79 "_S3D", 80 "_S4D" 81 }; 82 83 /******************************************************************************* 84 * 85 * Namespace globals 86 * 87 ******************************************************************************/ 88 /* 89 * Predefined ACPI Names (Built-in to the Interpreter) 90 * 91 * NOTES: 92 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run 93 * during the initialization sequence. 94 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to 95 * perform a Notify() operation on it. 09/2010: Changed to type Device. 96 * This still allows notifies, but does not confuse host code that 97 * searches for valid thermal_zone objects. 98 */ 99 const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = { 100 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL}, 101 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL}, 102 {"_SB_", ACPI_TYPE_DEVICE, NULL}, 103 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL}, 104 {"_TZ_", ACPI_TYPE_DEVICE, NULL}, 105 {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL}, 106 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME}, 107 {"_GL_", ACPI_TYPE_MUTEX, (char *)1}, 108 109 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY) 110 {"_OSI", ACPI_TYPE_METHOD, (char *)1}, 111 #endif 112 113 /* Table terminator */ 114 115 {NULL, ACPI_TYPE_ANY, NULL} 116 }; 117 118 #if (!ACPI_REDUCED_HARDWARE) 119 /****************************************************************************** 120 * 121 * Event and Hardware globals 122 * 123 ******************************************************************************/ 124 125 struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = { 126 /* Name Parent Register Register Bit Position Register Bit Mask */ 127 128 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, 129 ACPI_BITPOSITION_TIMER_STATUS, 130 ACPI_BITMASK_TIMER_STATUS}, 131 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, 132 ACPI_BITPOSITION_BUS_MASTER_STATUS, 133 ACPI_BITMASK_BUS_MASTER_STATUS}, 134 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, 135 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, 136 ACPI_BITMASK_GLOBAL_LOCK_STATUS}, 137 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, 138 ACPI_BITPOSITION_POWER_BUTTON_STATUS, 139 ACPI_BITMASK_POWER_BUTTON_STATUS}, 140 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, 141 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, 142 ACPI_BITMASK_SLEEP_BUTTON_STATUS}, 143 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, 144 ACPI_BITPOSITION_RT_CLOCK_STATUS, 145 ACPI_BITMASK_RT_CLOCK_STATUS}, 146 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, 147 ACPI_BITPOSITION_WAKE_STATUS, 148 ACPI_BITMASK_WAKE_STATUS}, 149 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, 150 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS, 151 ACPI_BITMASK_PCIEXP_WAKE_STATUS}, 152 153 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 154 ACPI_BITPOSITION_TIMER_ENABLE, 155 ACPI_BITMASK_TIMER_ENABLE}, 156 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 157 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, 158 ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, 159 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 160 ACPI_BITPOSITION_POWER_BUTTON_ENABLE, 161 ACPI_BITMASK_POWER_BUTTON_ENABLE}, 162 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 163 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, 164 ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, 165 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, 166 ACPI_BITPOSITION_RT_CLOCK_ENABLE, 167 ACPI_BITMASK_RT_CLOCK_ENABLE}, 168 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE, 169 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE, 170 ACPI_BITMASK_PCIEXP_WAKE_DISABLE}, 171 172 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, 173 ACPI_BITPOSITION_SCI_ENABLE, 174 ACPI_BITMASK_SCI_ENABLE}, 175 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, 176 ACPI_BITPOSITION_BUS_MASTER_RLD, 177 ACPI_BITMASK_BUS_MASTER_RLD}, 178 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, 179 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, 180 ACPI_BITMASK_GLOBAL_LOCK_RELEASE}, 181 /* ACPI_BITREG_SLEEP_TYPE */ {ACPI_REGISTER_PM1_CONTROL, 182 ACPI_BITPOSITION_SLEEP_TYPE, 183 ACPI_BITMASK_SLEEP_TYPE}, 184 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, 185 ACPI_BITPOSITION_SLEEP_ENABLE, 186 ACPI_BITMASK_SLEEP_ENABLE}, 187 188 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, 189 ACPI_BITPOSITION_ARB_DISABLE, 190 ACPI_BITMASK_ARB_DISABLE} 191 }; 192 193 struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = { 194 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, 195 ACPI_BITREG_TIMER_ENABLE, 196 ACPI_BITMASK_TIMER_STATUS, 197 ACPI_BITMASK_TIMER_ENABLE}, 198 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, 199 ACPI_BITREG_GLOBAL_LOCK_ENABLE, 200 ACPI_BITMASK_GLOBAL_LOCK_STATUS, 201 ACPI_BITMASK_GLOBAL_LOCK_ENABLE}, 202 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, 203 ACPI_BITREG_POWER_BUTTON_ENABLE, 204 ACPI_BITMASK_POWER_BUTTON_STATUS, 205 ACPI_BITMASK_POWER_BUTTON_ENABLE}, 206 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, 207 ACPI_BITREG_SLEEP_BUTTON_ENABLE, 208 ACPI_BITMASK_SLEEP_BUTTON_STATUS, 209 ACPI_BITMASK_SLEEP_BUTTON_ENABLE}, 210 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, 211 ACPI_BITREG_RT_CLOCK_ENABLE, 212 ACPI_BITMASK_RT_CLOCK_STATUS, 213 ACPI_BITMASK_RT_CLOCK_ENABLE}, 214 }; 215 #endif /* !ACPI_REDUCED_HARDWARE */ 216 217 /******************************************************************************* 218 * 219 * FUNCTION: acpi_ut_init_globals 220 * 221 * PARAMETERS: None 222 * 223 * RETURN: Status 224 * 225 * DESCRIPTION: Initialize ACPICA globals. All globals that require specific 226 * initialization should be initialized here. This allows for 227 * a warm restart. 228 * 229 ******************************************************************************/ 230 231 acpi_status acpi_ut_init_globals(void) 232 { 233 acpi_status status; 234 u32 i; 235 236 ACPI_FUNCTION_TRACE(ut_init_globals); 237 238 /* Create all memory caches */ 239 240 status = acpi_ut_create_caches(); 241 if (ACPI_FAILURE(status)) { 242 return_ACPI_STATUS(status); 243 } 244 245 /* Address Range lists */ 246 247 for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) { 248 acpi_gbl_address_range_list[i] = NULL; 249 } 250 251 /* Mutex locked flags */ 252 253 for (i = 0; i < ACPI_NUM_MUTEX; i++) { 254 acpi_gbl_mutex_info[i].mutex = NULL; 255 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; 256 acpi_gbl_mutex_info[i].use_count = 0; 257 } 258 259 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) { 260 acpi_gbl_owner_id_mask[i] = 0; 261 } 262 263 /* Last owner_ID is never valid */ 264 265 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; 266 267 /* Event counters */ 268 269 acpi_method_count = 0; 270 acpi_sci_count = 0; 271 acpi_gpe_count = 0; 272 273 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { 274 acpi_fixed_event_count[i] = 0; 275 } 276 277 #if (!ACPI_REDUCED_HARDWARE) 278 279 /* GPE/SCI support */ 280 281 acpi_gbl_all_gpes_initialized = FALSE; 282 acpi_gbl_gpe_xrupt_list_head = NULL; 283 acpi_gbl_gpe_fadt_blocks[0] = NULL; 284 acpi_gbl_gpe_fadt_blocks[1] = NULL; 285 acpi_current_gpe_count = 0; 286 287 acpi_gbl_global_event_handler = NULL; 288 acpi_gbl_sci_handler_list = NULL; 289 290 #endif /* !ACPI_REDUCED_HARDWARE */ 291 292 /* Global handlers */ 293 294 acpi_gbl_global_notify[0].handler = NULL; 295 acpi_gbl_global_notify[1].handler = NULL; 296 acpi_gbl_exception_handler = NULL; 297 acpi_gbl_init_handler = NULL; 298 acpi_gbl_table_handler = NULL; 299 acpi_gbl_interface_handler = NULL; 300 301 /* Global Lock support */ 302 303 acpi_gbl_global_lock_semaphore = NULL; 304 acpi_gbl_global_lock_mutex = NULL; 305 acpi_gbl_global_lock_acquired = FALSE; 306 acpi_gbl_global_lock_handle = 0; 307 acpi_gbl_global_lock_present = FALSE; 308 309 /* Miscellaneous variables */ 310 311 acpi_gbl_DSDT = NULL; 312 acpi_gbl_cm_single_step = FALSE; 313 acpi_gbl_shutdown = FALSE; 314 acpi_gbl_ns_lookup_count = 0; 315 acpi_gbl_ps_find_count = 0; 316 acpi_gbl_acpi_hardware_present = TRUE; 317 acpi_gbl_last_owner_id_index = 0; 318 acpi_gbl_next_owner_id_offset = 0; 319 acpi_gbl_trace_dbg_level = 0; 320 acpi_gbl_trace_dbg_layer = 0; 321 acpi_gbl_debugger_configuration = DEBUGGER_THREADING; 322 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; 323 acpi_gbl_osi_mutex = NULL; 324 acpi_gbl_reg_methods_executed = FALSE; 325 326 /* Hardware oriented */ 327 328 acpi_gbl_events_initialized = FALSE; 329 acpi_gbl_system_awake_and_running = TRUE; 330 331 /* Namespace */ 332 333 acpi_gbl_module_code_list = NULL; 334 acpi_gbl_root_node = NULL; 335 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; 336 acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; 337 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; 338 acpi_gbl_root_node_struct.parent = NULL; 339 acpi_gbl_root_node_struct.child = NULL; 340 acpi_gbl_root_node_struct.peer = NULL; 341 acpi_gbl_root_node_struct.object = NULL; 342 343 #ifdef ACPI_DISASSEMBLER 344 acpi_gbl_external_list = NULL; 345 acpi_gbl_num_external_methods = 0; 346 acpi_gbl_resolved_external_methods = 0; 347 #endif 348 349 #ifdef ACPI_DEBUG_OUTPUT 350 acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX); 351 #endif 352 353 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 354 acpi_gbl_display_final_mem_stats = FALSE; 355 acpi_gbl_disable_mem_tracking = FALSE; 356 #endif 357 358 ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = FALSE); 359 360 return_ACPI_STATUS(AE_OK); 361 } 362 363 /* Public globals */ 364 365 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT) 366 ACPI_EXPORT_SYMBOL(acpi_dbg_level) 367 ACPI_EXPORT_SYMBOL(acpi_dbg_layer) 368 ACPI_EXPORT_SYMBOL(acpi_gpe_count) 369 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count) 370