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 - 2016, 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 #include "acpi.h" 117 #include "accommon.h" 118 #include "acnamesp.h" 119 #include "acevents.h" 120 #include "actables.h" 121 122 #define _COMPONENT ACPI_UTILITIES 123 ACPI_MODULE_NAME ("utinit") 124 125 /* Local prototypes */ 126 127 static void AcpiUtTerminate ( 128 void); 129 130 #if (!ACPI_REDUCED_HARDWARE) 131 132 static void 133 AcpiUtFreeGpeLists ( 134 void); 135 136 #else 137 138 #define AcpiUtFreeGpeLists() 139 #endif /* !ACPI_REDUCED_HARDWARE */ 140 141 142 #if (!ACPI_REDUCED_HARDWARE) 143 /****************************************************************************** 144 * 145 * FUNCTION: AcpiUtFreeGpeLists 146 * 147 * PARAMETERS: none 148 * 149 * RETURN: none 150 * 151 * DESCRIPTION: Free global GPE lists 152 * 153 ******************************************************************************/ 154 155 static void 156 AcpiUtFreeGpeLists ( 157 void) 158 { 159 ACPI_GPE_BLOCK_INFO *GpeBlock; 160 ACPI_GPE_BLOCK_INFO *NextGpeBlock; 161 ACPI_GPE_XRUPT_INFO *GpeXruptInfo; 162 ACPI_GPE_XRUPT_INFO *NextGpeXruptInfo; 163 164 165 /* Free global GPE blocks and related info structures */ 166 167 GpeXruptInfo = AcpiGbl_GpeXruptListHead; 168 while (GpeXruptInfo) 169 { 170 GpeBlock = GpeXruptInfo->GpeBlockListHead; 171 while (GpeBlock) 172 { 173 NextGpeBlock = GpeBlock->Next; 174 ACPI_FREE (GpeBlock->EventInfo); 175 ACPI_FREE (GpeBlock->RegisterInfo); 176 ACPI_FREE (GpeBlock); 177 178 GpeBlock = NextGpeBlock; 179 } 180 NextGpeXruptInfo = GpeXruptInfo->Next; 181 ACPI_FREE (GpeXruptInfo); 182 GpeXruptInfo = NextGpeXruptInfo; 183 } 184 } 185 #endif /* !ACPI_REDUCED_HARDWARE */ 186 187 188 /******************************************************************************* 189 * 190 * FUNCTION: AcpiUtInitGlobals 191 * 192 * PARAMETERS: None 193 * 194 * RETURN: Status 195 * 196 * DESCRIPTION: Initialize ACPICA globals. All globals that require specific 197 * initialization should be initialized here. This allows for 198 * a warm restart. 199 * 200 ******************************************************************************/ 201 202 ACPI_STATUS 203 AcpiUtInitGlobals ( 204 void) 205 { 206 ACPI_STATUS Status; 207 UINT32 i; 208 209 210 ACPI_FUNCTION_TRACE (UtInitGlobals); 211 212 213 /* Create all memory caches */ 214 215 Status = AcpiUtCreateCaches (); 216 if (ACPI_FAILURE (Status)) 217 { 218 return_ACPI_STATUS (Status); 219 } 220 221 /* Address Range lists */ 222 223 for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) 224 { 225 AcpiGbl_AddressRangeList[i] = NULL; 226 } 227 228 /* Mutex locked flags */ 229 230 for (i = 0; i < ACPI_NUM_MUTEX; i++) 231 { 232 AcpiGbl_MutexInfo[i].Mutex = NULL; 233 AcpiGbl_MutexInfo[i].ThreadId = ACPI_MUTEX_NOT_ACQUIRED; 234 AcpiGbl_MutexInfo[i].UseCount = 0; 235 } 236 237 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) 238 { 239 AcpiGbl_OwnerIdMask[i] = 0; 240 } 241 242 /* Last OwnerID is never valid */ 243 244 AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; 245 246 /* Event counters */ 247 248 AcpiMethodCount = 0; 249 AcpiSciCount = 0; 250 AcpiGpeCount = 0; 251 252 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) 253 { 254 AcpiFixedEventCount[i] = 0; 255 } 256 257 #if (!ACPI_REDUCED_HARDWARE) 258 259 /* GPE/SCI support */ 260 261 AcpiGbl_AllGpesInitialized = FALSE; 262 AcpiGbl_GpeXruptListHead = NULL; 263 AcpiGbl_GpeFadtBlocks[0] = NULL; 264 AcpiGbl_GpeFadtBlocks[1] = NULL; 265 AcpiCurrentGpeCount = 0; 266 267 AcpiGbl_GlobalEventHandler = NULL; 268 AcpiGbl_SciHandlerList = NULL; 269 270 #endif /* !ACPI_REDUCED_HARDWARE */ 271 272 /* Global handlers */ 273 274 AcpiGbl_GlobalNotify[0].Handler = NULL; 275 AcpiGbl_GlobalNotify[1].Handler = NULL; 276 AcpiGbl_ExceptionHandler = NULL; 277 AcpiGbl_InitHandler = NULL; 278 AcpiGbl_TableHandler = NULL; 279 AcpiGbl_InterfaceHandler = NULL; 280 281 /* Global Lock support */ 282 283 AcpiGbl_GlobalLockSemaphore = NULL; 284 AcpiGbl_GlobalLockMutex = NULL; 285 AcpiGbl_GlobalLockAcquired = FALSE; 286 AcpiGbl_GlobalLockHandle = 0; 287 AcpiGbl_GlobalLockPresent = FALSE; 288 289 /* Miscellaneous variables */ 290 291 AcpiGbl_DSDT = NULL; 292 AcpiGbl_CmSingleStep = FALSE; 293 AcpiGbl_Shutdown = FALSE; 294 AcpiGbl_NsLookupCount = 0; 295 AcpiGbl_PsFindCount = 0; 296 AcpiGbl_AcpiHardwarePresent = TRUE; 297 AcpiGbl_LastOwnerIdIndex = 0; 298 AcpiGbl_NextOwnerIdOffset = 0; 299 AcpiGbl_DebuggerConfiguration = DEBUGGER_THREADING; 300 AcpiGbl_OsiMutex = NULL; 301 AcpiGbl_MaxLoopIterations = 0xFFFF; 302 303 /* Hardware oriented */ 304 305 AcpiGbl_EventsInitialized = FALSE; 306 AcpiGbl_SystemAwakeAndRunning = TRUE; 307 308 /* Namespace */ 309 310 AcpiGbl_ModuleCodeList = NULL; 311 AcpiGbl_RootNode = NULL; 312 AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME; 313 AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED; 314 AcpiGbl_RootNodeStruct.Type = ACPI_TYPE_DEVICE; 315 AcpiGbl_RootNodeStruct.Parent = NULL; 316 AcpiGbl_RootNodeStruct.Child = NULL; 317 AcpiGbl_RootNodeStruct.Peer = NULL; 318 AcpiGbl_RootNodeStruct.Object = NULL; 319 320 321 #ifdef ACPI_DISASSEMBLER 322 AcpiGbl_ExternalList = NULL; 323 AcpiGbl_NumExternalMethods = 0; 324 AcpiGbl_ResolvedExternalMethods = 0; 325 #endif 326 327 #ifdef ACPI_DEBUG_OUTPUT 328 AcpiGbl_LowestStackPointer = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX); 329 #endif 330 331 #ifdef ACPI_DBG_TRACK_ALLOCATIONS 332 AcpiGbl_DisplayFinalMemStats = FALSE; 333 AcpiGbl_DisableMemTracking = FALSE; 334 #endif 335 336 return_ACPI_STATUS (AE_OK); 337 } 338 339 340 /****************************************************************************** 341 * 342 * FUNCTION: AcpiUtTerminate 343 * 344 * PARAMETERS: none 345 * 346 * RETURN: none 347 * 348 * DESCRIPTION: Free global memory 349 * 350 ******************************************************************************/ 351 352 static void 353 AcpiUtTerminate ( 354 void) 355 { 356 ACPI_FUNCTION_TRACE (UtTerminate); 357 358 AcpiUtFreeGpeLists (); 359 AcpiUtDeleteAddressLists (); 360 return_VOID; 361 } 362 363 364 /******************************************************************************* 365 * 366 * FUNCTION: AcpiUtSubsystemShutdown 367 * 368 * PARAMETERS: None 369 * 370 * RETURN: None 371 * 372 * DESCRIPTION: Shutdown the various components. Do not delete the mutex 373 * objects here, because the AML debugger may be still running. 374 * 375 ******************************************************************************/ 376 377 void 378 AcpiUtSubsystemShutdown ( 379 void) 380 { 381 ACPI_FUNCTION_TRACE (UtSubsystemShutdown); 382 383 384 /* Just exit if subsystem is already shutdown */ 385 386 if (AcpiGbl_Shutdown) 387 { 388 ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated")); 389 return_VOID; 390 } 391 392 /* Subsystem appears active, go ahead and shut it down */ 393 394 AcpiGbl_Shutdown = TRUE; 395 AcpiGbl_StartupFlags = 0; 396 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); 397 398 #ifndef ACPI_ASL_COMPILER 399 400 /* Close the AcpiEvent Handling */ 401 402 AcpiEvTerminate (); 403 404 /* Delete any dynamic _OSI interfaces */ 405 406 AcpiUtInterfaceTerminate (); 407 #endif 408 409 /* Close the Namespace */ 410 411 AcpiNsTerminate (); 412 413 /* Delete the ACPI tables */ 414 415 AcpiTbTerminate (); 416 417 /* Close the globals */ 418 419 AcpiUtTerminate (); 420 421 /* Purge the local caches */ 422 423 (void) AcpiUtDeleteCaches (); 424 return_VOID; 425 } 426