1 /****************************************************************************** 2 * 3 * Module Name: utinit - Common ACPI subsystem initialization 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "acpi.h" 153 #include "accommon.h" 154 #include "acnamesp.h" 155 #include "acevents.h" 156 #include "actables.h" 157 158 #define _COMPONENT ACPI_UTILITIES 159 ACPI_MODULE_NAME ("utinit") 160 161 /* Local prototypes */ 162 163 static void AcpiUtTerminate ( 164 void); 165 166 #if (!ACPI_REDUCED_HARDWARE) 167 168 static void 169 AcpiUtFreeGpeLists ( 170 void); 171 172 #else 173 174 #define AcpiUtFreeGpeLists() 175 #endif /* !ACPI_REDUCED_HARDWARE */ 176 177 178 #if (!ACPI_REDUCED_HARDWARE) 179 /****************************************************************************** 180 * 181 * FUNCTION: AcpiUtFreeGpeLists 182 * 183 * PARAMETERS: none 184 * 185 * RETURN: none 186 * 187 * DESCRIPTION: Free global GPE lists 188 * 189 ******************************************************************************/ 190 191 static void 192 AcpiUtFreeGpeLists ( 193 void) 194 { 195 ACPI_GPE_BLOCK_INFO *GpeBlock; 196 ACPI_GPE_BLOCK_INFO *NextGpeBlock; 197 ACPI_GPE_XRUPT_INFO *GpeXruptInfo; 198 ACPI_GPE_XRUPT_INFO *NextGpeXruptInfo; 199 200 201 /* Free global GPE blocks and related info structures */ 202 203 GpeXruptInfo = AcpiGbl_GpeXruptListHead; 204 while (GpeXruptInfo) 205 { 206 GpeBlock = GpeXruptInfo->GpeBlockListHead; 207 while (GpeBlock) 208 { 209 NextGpeBlock = GpeBlock->Next; 210 ACPI_FREE (GpeBlock->EventInfo); 211 ACPI_FREE (GpeBlock->RegisterInfo); 212 ACPI_FREE (GpeBlock); 213 214 GpeBlock = NextGpeBlock; 215 } 216 NextGpeXruptInfo = GpeXruptInfo->Next; 217 ACPI_FREE (GpeXruptInfo); 218 GpeXruptInfo = NextGpeXruptInfo; 219 } 220 } 221 #endif /* !ACPI_REDUCED_HARDWARE */ 222 223 224 /******************************************************************************* 225 * 226 * FUNCTION: AcpiUtInitGlobals 227 * 228 * PARAMETERS: None 229 * 230 * RETURN: Status 231 * 232 * DESCRIPTION: Initialize ACPICA globals. All globals that require specific 233 * initialization should be initialized here. This allows for 234 * a warm restart. 235 * 236 ******************************************************************************/ 237 238 ACPI_STATUS 239 AcpiUtInitGlobals ( 240 void) 241 { 242 ACPI_STATUS Status; 243 UINT32 i; 244 245 246 ACPI_FUNCTION_TRACE (UtInitGlobals); 247 248 249 /* Create all memory caches */ 250 251 Status = AcpiUtCreateCaches (); 252 if (ACPI_FAILURE (Status)) 253 { 254 return_ACPI_STATUS (Status); 255 } 256 257 /* Address Range lists */ 258 259 for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) 260 { 261 AcpiGbl_AddressRangeList[i] = NULL; 262 } 263 264 /* Mutex locked flags */ 265 266 for (i = 0; i < ACPI_NUM_MUTEX; i++) 267 { 268 AcpiGbl_MutexInfo[i].Mutex = NULL; 269 AcpiGbl_MutexInfo[i].ThreadId = ACPI_MUTEX_NOT_ACQUIRED; 270 AcpiGbl_MutexInfo[i].UseCount = 0; 271 } 272 273 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) 274 { 275 AcpiGbl_OwnerIdMask[i] = 0; 276 } 277 278 /* Last OwnerID is never valid */ 279 280 AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; 281 282 /* Event counters */ 283 284 AcpiMethodCount = 0; 285 AcpiSciCount = 0; 286 AcpiGpeCount = 0; 287 288 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) 289 { 290 AcpiFixedEventCount[i] = 0; 291 } 292 293 #if (!ACPI_REDUCED_HARDWARE) 294 295 /* GPE/SCI support */ 296 297 AcpiGbl_AllGpesInitialized = FALSE; 298 AcpiGbl_GpeXruptListHead = NULL; 299 AcpiGbl_GpeFadtBlocks[0] = NULL; 300 AcpiGbl_GpeFadtBlocks[1] = NULL; 301 AcpiCurrentGpeCount = 0; 302 303 AcpiGbl_GlobalEventHandler = NULL; 304 AcpiGbl_SciHandlerList = NULL; 305 306 #endif /* !ACPI_REDUCED_HARDWARE */ 307 308 /* Global handlers */ 309 310 AcpiGbl_GlobalNotify[0].Handler = NULL; 311 AcpiGbl_GlobalNotify[1].Handler = NULL; 312 AcpiGbl_ExceptionHandler = NULL; 313 AcpiGbl_InitHandler = NULL; 314 AcpiGbl_TableHandler = NULL; 315 AcpiGbl_InterfaceHandler = NULL; 316 317 /* Global Lock support */ 318 319 AcpiGbl_GlobalLockSemaphore = NULL; 320 AcpiGbl_GlobalLockMutex = NULL; 321 AcpiGbl_GlobalLockAcquired = FALSE; 322 AcpiGbl_GlobalLockHandle = 0; 323 AcpiGbl_GlobalLockPresent = FALSE; 324 325 /* Miscellaneous variables */ 326 327 AcpiGbl_DSDT = NULL; 328 AcpiGbl_CmSingleStep = FALSE; 329 AcpiGbl_Shutdown = FALSE; 330 AcpiGbl_NsLookupCount = 0; 331 AcpiGbl_PsFindCount = 0; 332 AcpiGbl_AcpiHardwarePresent = TRUE; 333 AcpiGbl_LastOwnerIdIndex = 0; 334 AcpiGbl_NextOwnerIdOffset = 0; 335 AcpiGbl_DebuggerConfiguration = DEBUGGER_THREADING; 336 AcpiGbl_OsiMutex = NULL; 337 338 /* Hardware oriented */ 339 340 AcpiGbl_EventsInitialized = FALSE; 341 AcpiGbl_SystemAwakeAndRunning = TRUE; 342 343 /* Namespace */ 344 345 AcpiGbl_ModuleCodeList = NULL; 346 AcpiGbl_RootNode = NULL; 347 AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME; 348 AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED; 349 AcpiGbl_RootNodeStruct.Type = ACPI_TYPE_DEVICE; 350 AcpiGbl_RootNodeStruct.Parent = NULL; 351 AcpiGbl_RootNodeStruct.Child = NULL; 352 AcpiGbl_RootNodeStruct.Peer = NULL; 353 AcpiGbl_RootNodeStruct.Object = NULL; 354 355 356 #ifdef ACPI_DISASSEMBLER 357 AcpiGbl_ExternalList = NULL; 358 AcpiGbl_NumExternalMethods = 0; 359 AcpiGbl_ResolvedExternalMethods = 0; 360 #endif 361 362 #ifdef ACPI_DEBUG_OUTPUT 363 AcpiGbl_LowestStackPointer = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX); 364 #endif 365 366 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 367 AcpiGbl_DisplayFinalMemStats = FALSE; 368 AcpiGbl_DisableMemTracking = FALSE; 369 #endif 370 371 return_ACPI_STATUS (AE_OK); 372 } 373 374 375 /****************************************************************************** 376 * 377 * FUNCTION: AcpiUtTerminate 378 * 379 * PARAMETERS: none 380 * 381 * RETURN: none 382 * 383 * DESCRIPTION: Free global memory 384 * 385 ******************************************************************************/ 386 387 static void 388 AcpiUtTerminate ( 389 void) 390 { 391 ACPI_FUNCTION_TRACE (UtTerminate); 392 393 AcpiUtFreeGpeLists (); 394 AcpiUtDeleteAddressLists (); 395 return_VOID; 396 } 397 398 399 /******************************************************************************* 400 * 401 * FUNCTION: AcpiUtSubsystemShutdown 402 * 403 * PARAMETERS: None 404 * 405 * RETURN: None 406 * 407 * DESCRIPTION: Shutdown the various components. Do not delete the mutex 408 * objects here, because the AML debugger may be still running. 409 * 410 ******************************************************************************/ 411 412 void 413 AcpiUtSubsystemShutdown ( 414 void) 415 { 416 ACPI_FUNCTION_TRACE (UtSubsystemShutdown); 417 418 419 /* Just exit if subsystem is already shutdown */ 420 421 if (AcpiGbl_Shutdown) 422 { 423 ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated")); 424 return_VOID; 425 } 426 427 /* Subsystem appears active, go ahead and shut it down */ 428 429 AcpiGbl_Shutdown = TRUE; 430 AcpiGbl_StartupFlags = 0; 431 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); 432 433 #ifndef ACPI_ASL_COMPILER 434 435 /* Close the AcpiEvent Handling */ 436 437 AcpiEvTerminate (); 438 439 /* Delete any dynamic _OSI interfaces */ 440 441 AcpiUtInterfaceTerminate (); 442 #endif 443 444 /* Close the Namespace */ 445 446 AcpiNsTerminate (); 447 448 /* Delete the ACPI tables */ 449 450 AcpiTbTerminate (); 451 452 /* Close the globals */ 453 454 AcpiUtTerminate (); 455 456 /* Purge the local caches */ 457 458 (void) AcpiUtDeleteCaches (); 459 return_VOID; 460 } 461