| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: utinit - Common ACPI subsystem initialization |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, 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 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "acnamesp.h" |
| 47 | #include "acevents.h" |
| 48 | #include "actables.h" |
| 49 | |
| 50 | #define _COMPONENT ACPI_UTILITIES |
| 51 | ACPI_MODULE_NAME ("utinit" ) |
| 52 | |
| 53 | /* Local prototypes */ |
| 54 | |
| 55 | static void AcpiUtTerminate ( |
| 56 | void); |
| 57 | |
| 58 | #if (!ACPI_REDUCED_HARDWARE) |
| 59 | |
| 60 | static void |
| 61 | AcpiUtFreeGpeLists ( |
| 62 | void); |
| 63 | |
| 64 | #else |
| 65 | |
| 66 | #define AcpiUtFreeGpeLists() |
| 67 | #endif /* !ACPI_REDUCED_HARDWARE */ |
| 68 | |
| 69 | |
| 70 | #if (!ACPI_REDUCED_HARDWARE) |
| 71 | /****************************************************************************** |
| 72 | * |
| 73 | * FUNCTION: AcpiUtFreeGpeLists |
| 74 | * |
| 75 | * PARAMETERS: none |
| 76 | * |
| 77 | * RETURN: none |
| 78 | * |
| 79 | * DESCRIPTION: Free global GPE lists |
| 80 | * |
| 81 | ******************************************************************************/ |
| 82 | |
| 83 | static void |
| 84 | AcpiUtFreeGpeLists ( |
| 85 | void) |
| 86 | { |
| 87 | ACPI_GPE_BLOCK_INFO *GpeBlock; |
| 88 | ACPI_GPE_BLOCK_INFO *NextGpeBlock; |
| 89 | ACPI_GPE_XRUPT_INFO *GpeXruptInfo; |
| 90 | ACPI_GPE_XRUPT_INFO *NextGpeXruptInfo; |
| 91 | |
| 92 | |
| 93 | /* Free global GPE blocks and related info structures */ |
| 94 | |
| 95 | GpeXruptInfo = AcpiGbl_GpeXruptListHead; |
| 96 | while (GpeXruptInfo) |
| 97 | { |
| 98 | GpeBlock = GpeXruptInfo->GpeBlockListHead; |
| 99 | while (GpeBlock) |
| 100 | { |
| 101 | NextGpeBlock = GpeBlock->Next; |
| 102 | ACPI_FREE (GpeBlock->EventInfo); |
| 103 | ACPI_FREE (GpeBlock->RegisterInfo); |
| 104 | ACPI_FREE (GpeBlock); |
| 105 | |
| 106 | GpeBlock = NextGpeBlock; |
| 107 | } |
| 108 | NextGpeXruptInfo = GpeXruptInfo->Next; |
| 109 | ACPI_FREE (GpeXruptInfo); |
| 110 | GpeXruptInfo = NextGpeXruptInfo; |
| 111 | } |
| 112 | } |
| 113 | #endif /* !ACPI_REDUCED_HARDWARE */ |
| 114 | |
| 115 | |
| 116 | /******************************************************************************* |
| 117 | * |
| 118 | * FUNCTION: AcpiUtInitGlobals |
| 119 | * |
| 120 | * PARAMETERS: None |
| 121 | * |
| 122 | * RETURN: Status |
| 123 | * |
| 124 | * DESCRIPTION: Initialize ACPICA globals. All globals that require specific |
| 125 | * initialization should be initialized here. This allows for |
| 126 | * a warm restart. |
| 127 | * |
| 128 | ******************************************************************************/ |
| 129 | |
| 130 | ACPI_STATUS |
| 131 | AcpiUtInitGlobals ( |
| 132 | void) |
| 133 | { |
| 134 | ACPI_STATUS Status; |
| 135 | UINT32 i; |
| 136 | |
| 137 | |
| 138 | ACPI_FUNCTION_TRACE (UtInitGlobals); |
| 139 | |
| 140 | |
| 141 | /* Create all memory caches */ |
| 142 | |
| 143 | Status = AcpiUtCreateCaches (); |
| 144 | if (ACPI_FAILURE (Status)) |
| 145 | { |
| 146 | return_ACPI_STATUS (Status); |
| 147 | } |
| 148 | |
| 149 | /* Address Range lists */ |
| 150 | |
| 151 | for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) |
| 152 | { |
| 153 | AcpiGbl_AddressRangeList[i] = NULL; |
| 154 | } |
| 155 | |
| 156 | /* Mutex locked flags */ |
| 157 | |
| 158 | for (i = 0; i < ACPI_NUM_MUTEX; i++) |
| 159 | { |
| 160 | AcpiGbl_MutexInfo[i].Mutex = NULL; |
| 161 | AcpiGbl_MutexInfo[i].ThreadId = ACPI_MUTEX_NOT_ACQUIRED; |
| 162 | AcpiGbl_MutexInfo[i].UseCount = 0; |
| 163 | } |
| 164 | |
| 165 | for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) |
| 166 | { |
| 167 | AcpiGbl_OwnerIdMask[i] = 0; |
| 168 | } |
| 169 | |
| 170 | /* Last OwnerID is never valid */ |
| 171 | |
| 172 | AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; |
| 173 | |
| 174 | /* Event counters */ |
| 175 | |
| 176 | AcpiMethodCount = 0; |
| 177 | AcpiSciCount = 0; |
| 178 | AcpiGpeCount = 0; |
| 179 | |
| 180 | for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) |
| 181 | { |
| 182 | AcpiFixedEventCount[i] = 0; |
| 183 | } |
| 184 | |
| 185 | #if (!ACPI_REDUCED_HARDWARE) |
| 186 | |
| 187 | /* GPE/SCI support */ |
| 188 | |
| 189 | AcpiGbl_AllGpesInitialized = FALSE; |
| 190 | AcpiGbl_GpeXruptListHead = NULL; |
| 191 | AcpiGbl_GpeFadtBlocks[0] = NULL; |
| 192 | AcpiGbl_GpeFadtBlocks[1] = NULL; |
| 193 | AcpiCurrentGpeCount = 0; |
| 194 | |
| 195 | AcpiGbl_GlobalEventHandler = NULL; |
| 196 | AcpiGbl_SciHandlerList = NULL; |
| 197 | |
| 198 | #endif /* !ACPI_REDUCED_HARDWARE */ |
| 199 | |
| 200 | /* Global handlers */ |
| 201 | |
| 202 | AcpiGbl_GlobalNotify[0].Handler = NULL; |
| 203 | AcpiGbl_GlobalNotify[1].Handler = NULL; |
| 204 | AcpiGbl_ExceptionHandler = NULL; |
| 205 | AcpiGbl_InitHandler = NULL; |
| 206 | AcpiGbl_TableHandler = NULL; |
| 207 | AcpiGbl_InterfaceHandler = NULL; |
| 208 | |
| 209 | /* Global Lock support */ |
| 210 | |
| 211 | AcpiGbl_GlobalLockSemaphore = NULL; |
| 212 | AcpiGbl_GlobalLockMutex = NULL; |
| 213 | AcpiGbl_GlobalLockAcquired = FALSE; |
| 214 | AcpiGbl_GlobalLockHandle = 0; |
| 215 | AcpiGbl_GlobalLockPresent = FALSE; |
| 216 | |
| 217 | /* Miscellaneous variables */ |
| 218 | |
| 219 | AcpiGbl_DSDT = NULL; |
| 220 | AcpiGbl_CmSingleStep = FALSE; |
| 221 | AcpiGbl_Shutdown = FALSE; |
| 222 | AcpiGbl_NsLookupCount = 0; |
| 223 | AcpiGbl_PsFindCount = 0; |
| 224 | AcpiGbl_AcpiHardwarePresent = TRUE; |
| 225 | AcpiGbl_LastOwnerIdIndex = 0; |
| 226 | AcpiGbl_NextOwnerIdOffset = 0; |
| 227 | AcpiGbl_DebuggerConfiguration = DEBUGGER_THREADING; |
| 228 | AcpiGbl_OsiMutex = NULL; |
| 229 | AcpiGbl_MaxLoopIterations = ACPI_MAX_LOOP_COUNT; |
| 230 | |
| 231 | /* Hardware oriented */ |
| 232 | |
| 233 | AcpiGbl_EventsInitialized = FALSE; |
| 234 | AcpiGbl_SystemAwakeAndRunning = TRUE; |
| 235 | |
| 236 | /* Namespace */ |
| 237 | |
| 238 | AcpiGbl_ModuleCodeList = NULL; |
| 239 | AcpiGbl_RootNode = NULL; |
| 240 | AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME; |
| 241 | AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED; |
| 242 | AcpiGbl_RootNodeStruct.Type = ACPI_TYPE_DEVICE; |
| 243 | AcpiGbl_RootNodeStruct.Parent = NULL; |
| 244 | AcpiGbl_RootNodeStruct.Child = NULL; |
| 245 | AcpiGbl_RootNodeStruct.Peer = NULL; |
| 246 | AcpiGbl_RootNodeStruct.Object = NULL; |
| 247 | |
| 248 | |
| 249 | #ifdef ACPI_DISASSEMBLER |
| 250 | AcpiGbl_ExternalList = NULL; |
| 251 | AcpiGbl_NumExternalMethods = 0; |
| 252 | AcpiGbl_ResolvedExternalMethods = 0; |
| 253 | #endif |
| 254 | |
| 255 | #ifdef ACPI_DEBUG_OUTPUT |
| 256 | AcpiGbl_LowestStackPointer = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX); |
| 257 | #endif |
| 258 | |
| 259 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
| 260 | AcpiGbl_DisplayFinalMemStats = FALSE; |
| 261 | AcpiGbl_DisableMemTracking = FALSE; |
| 262 | #endif |
| 263 | |
| 264 | return_ACPI_STATUS (AE_OK); |
| 265 | } |
| 266 | |
| 267 | |
| 268 | /****************************************************************************** |
| 269 | * |
| 270 | * FUNCTION: AcpiUtTerminate |
| 271 | * |
| 272 | * PARAMETERS: none |
| 273 | * |
| 274 | * RETURN: none |
| 275 | * |
| 276 | * DESCRIPTION: Free global memory |
| 277 | * |
| 278 | ******************************************************************************/ |
| 279 | |
| 280 | static void |
| 281 | AcpiUtTerminate ( |
| 282 | void) |
| 283 | { |
| 284 | ACPI_FUNCTION_TRACE (UtTerminate); |
| 285 | |
| 286 | AcpiUtFreeGpeLists (); |
| 287 | AcpiUtDeleteAddressLists (); |
| 288 | return_VOID; |
| 289 | } |
| 290 | |
| 291 | |
| 292 | /******************************************************************************* |
| 293 | * |
| 294 | * FUNCTION: AcpiUtSubsystemShutdown |
| 295 | * |
| 296 | * PARAMETERS: None |
| 297 | * |
| 298 | * RETURN: None |
| 299 | * |
| 300 | * DESCRIPTION: Shutdown the various components. Do not delete the mutex |
| 301 | * objects here, because the AML debugger may be still running. |
| 302 | * |
| 303 | ******************************************************************************/ |
| 304 | |
| 305 | void |
| 306 | AcpiUtSubsystemShutdown ( |
| 307 | void) |
| 308 | { |
| 309 | ACPI_FUNCTION_TRACE (UtSubsystemShutdown); |
| 310 | |
| 311 | |
| 312 | /* Just exit if subsystem is already shutdown */ |
| 313 | |
| 314 | if (AcpiGbl_Shutdown) |
| 315 | { |
| 316 | ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated" )); |
| 317 | return_VOID; |
| 318 | } |
| 319 | |
| 320 | /* Subsystem appears active, go ahead and shut it down */ |
| 321 | |
| 322 | AcpiGbl_Shutdown = TRUE; |
| 323 | AcpiGbl_StartupFlags = 0; |
| 324 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n" )); |
| 325 | |
| 326 | #ifndef ACPI_ASL_COMPILER |
| 327 | |
| 328 | /* Close the AcpiEvent Handling */ |
| 329 | |
| 330 | AcpiEvTerminate (); |
| 331 | |
| 332 | /* Delete any dynamic _OSI interfaces */ |
| 333 | |
| 334 | AcpiUtInterfaceTerminate (); |
| 335 | #endif |
| 336 | |
| 337 | /* Close the Namespace */ |
| 338 | |
| 339 | AcpiNsTerminate (); |
| 340 | |
| 341 | /* Delete the ACPI tables */ |
| 342 | |
| 343 | AcpiTbTerminate (); |
| 344 | |
| 345 | /* Close the globals */ |
| 346 | |
| 347 | AcpiUtTerminate (); |
| 348 | |
| 349 | /* Purge the local caches */ |
| 350 | |
| 351 | (void) AcpiUtDeleteCaches (); |
| 352 | return_VOID; |
| 353 | } |
| 354 | |