sys/contrib/dev/acpica-unix/utilities/utglobal.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utglobal - Global variables for the ACPI subsystem
   4  *
   5  *****************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2011, 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 #define __UTGLOBAL_C__
 117 #define DEFINE_ACPI_GLOBALS
 118
 119 #include "acpi.h"
 120 #include "accommon.h"
 121
 122 #define _COMPONENT          ACPI_UTILITIES
 123         ACPI_MODULE_NAME    ("utglobal")
 124
 125
 126 /*******************************************************************************
 127  *
 128  * Static global variable initialization.
 129  *
 130  ******************************************************************************/
 131
 132 /*
 133  * We want the debug switches statically initialized so they
 134  * are already set when the debugger is entered.
 135  */
 136
 137 /* Debug switch - level and trace mask */
 138
 139 #ifdef ACPI_DEBUG_OUTPUT
 140 UINT32                      AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
 141 #else
 142 UINT32                      AcpiDbgLevel = ACPI_NORMAL_DEFAULT;
 143 #endif
 144
 145 /* Debug switch - layer (component) mask */
 146
 147 UINT32                      AcpiDbgLayer = ACPI_COMPONENT_DEFAULT;
 148 UINT32                      AcpiGbl_NestingLevel = 0;
 149
 150 /* Debugger globals */
 151
 152 BOOLEAN                     AcpiGbl_DbTerminateThreads = FALSE;
 153 BOOLEAN                     AcpiGbl_AbortMethod = FALSE;
 154 BOOLEAN                     AcpiGbl_MethodExecuting = FALSE;
 155
 156 /* System flags */
 157
 158 UINT32                      AcpiGbl_StartupFlags = 0;
 159
 160 /* System starts uninitialized */
 161
 162 BOOLEAN                     AcpiGbl_Shutdown = TRUE;
 163
 164 const char                  *AcpiGbl_SleepStateNames[ACPI_S_STATE_COUNT] =
 165 {
 166     "\\_S0_",
 167     "\\_S1_",
 168     "\\_S2_",
 169     "\\_S3_",
 170     "\\_S4_",
 171     "\\_S5_"
 172 };
 173
 174 const char                  *AcpiGbl_LowestDstateNames[ACPI_NUM_SxW_METHODS] =
 175 {
 176     "_S0W",
 177     "_S1W",
 178     "_S2W",
 179     "_S3W",
 180     "_S4W"
 181 };
 182
 183 const char                  *AcpiGbl_HighestDstateNames[ACPI_NUM_SxD_METHODS] =
 184 {
 185     "_S1D",
 186     "_S2D",
 187     "_S3D",
 188     "_S4D"
 189 };
 190
 191
 192 /*******************************************************************************
 193  *
 194  * Namespace globals
 195  *
 196  ******************************************************************************/
 197
 198 /*
 199  * Predefined ACPI Names (Built-in to the Interpreter)
 200  *
 201  * NOTES:
 202  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
 203  *    during the initialization sequence.
 204  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
 205  *    perform a Notify() operation on it. 09/2010: Changed to type Device.
 206  *    This still allows notifies, but does not confuse host code that
 207  *    searches for valid ThermalZone objects.
 208  */
 209 const ACPI_PREDEFINED_NAMES     AcpiGbl_PreDefinedNames[] =
 210 {
 211     {"_GPE",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 212     {"_PR_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 213     {"_SB_",    ACPI_TYPE_DEVICE,           NULL},
 214     {"_SI_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 215     {"_TZ_",    ACPI_TYPE_DEVICE,           NULL},
 216     {"_REV",    ACPI_TYPE_INTEGER,          (char *) ACPI_CA_SUPPORT_LEVEL},
 217     {"_OS_",    ACPI_TYPE_STRING,           ACPI_OS_NAME},
 218     {"_GL_",    ACPI_TYPE_MUTEX,            (char *) 1},
 219
 220 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
 221     {"_OSI",    ACPI_TYPE_METHOD,           (char *) 1},
 222 #endif
 223
 224     /* Table terminator */
 225
 226     {NULL,      ACPI_TYPE_ANY,              NULL}
 227 };
 228
 229
 230 /******************************************************************************
 231  *
 232  * Event and Hardware globals
 233  *
 234  ******************************************************************************/
 235
 236 ACPI_BIT_REGISTER_INFO      AcpiGbl_BitRegisterInfo[ACPI_NUM_BITREG] =
 237 {
 238     /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 239
 240     /* ACPI_BITREG_TIMER_STATUS         */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_TIMER_STATUS,          ACPI_BITMASK_TIMER_STATUS},
 241     /* ACPI_BITREG_BUS_MASTER_STATUS    */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_BUS_MASTER_STATUS,     ACPI_BITMASK_BUS_MASTER_STATUS},
 242     /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 243     /* ACPI_BITREG_POWER_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_STATUS},
 244     /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 245     /* ACPI_BITREG_RT_CLOCK_STATUS      */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_STATUS},
 246     /* ACPI_BITREG_WAKE_STATUS          */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_WAKE_STATUS,           ACPI_BITMASK_WAKE_STATUS},
 247     /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,    ACPI_BITMASK_PCIEXP_WAKE_STATUS},
 248
 249     /* ACPI_BITREG_TIMER_ENABLE         */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_TIMER_ENABLE,          ACPI_BITMASK_TIMER_ENABLE},
 250     /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 251     /* ACPI_BITREG_POWER_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_POWER_BUTTON_ENABLE,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 252     /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 253     /* ACPI_BITREG_RT_CLOCK_ENABLE      */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_RT_CLOCK_ENABLE,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 254     /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,   ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 255
 256     /* ACPI_BITREG_SCI_ENABLE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SCI_ENABLE,            ACPI_BITMASK_SCI_ENABLE},
 257     /* ACPI_BITREG_BUS_MASTER_RLD       */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_BUS_MASTER_RLD,        ACPI_BITMASK_BUS_MASTER_RLD},
 258     /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,   ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 259     /* ACPI_BITREG_SLEEP_TYPE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_TYPE,            ACPI_BITMASK_SLEEP_TYPE},
 260     /* ACPI_BITREG_SLEEP_ENABLE         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_ENABLE,          ACPI_BITMASK_SLEEP_ENABLE},
 261
 262     /* ACPI_BITREG_ARB_DIS              */   {ACPI_REGISTER_PM2_CONTROL,  ACPI_BITPOSITION_ARB_DISABLE,           ACPI_BITMASK_ARB_DISABLE}
 263 };
 264
 265
 266 ACPI_FIXED_EVENT_INFO       AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS] =
 267 {
 268     /* ACPI_EVENT_PMTIMER       */  {ACPI_BITREG_TIMER_STATUS,          ACPI_BITREG_TIMER_ENABLE,        ACPI_BITMASK_TIMER_STATUS,          ACPI_BITMASK_TIMER_ENABLE},
 269     /* ACPI_EVENT_GLOBAL        */  {ACPI_BITREG_GLOBAL_LOCK_STATUS,    ACPI_BITREG_GLOBAL_LOCK_ENABLE,  ACPI_BITMASK_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 270     /* ACPI_EVENT_POWER_BUTTON  */  {ACPI_BITREG_POWER_BUTTON_STATUS,   ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 271     /* ACPI_EVENT_SLEEP_BUTTON  */  {ACPI_BITREG_SLEEP_BUTTON_STATUS,   ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 272     /* ACPI_EVENT_RTC           */  {ACPI_BITREG_RT_CLOCK_STATUS,       ACPI_BITREG_RT_CLOCK_ENABLE,     ACPI_BITMASK_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 273 };
 274
 275
 276 /*******************************************************************************
 277  *
 278  * FUNCTION:    AcpiUtInitGlobals
 279  *
 280  * PARAMETERS:  None
 281  *
 282  * RETURN:      Status
 283  *
 284  * DESCRIPTION: Init ACPICA globals.  All globals that require specific
 285  *              initialization should be initialized here!
 286  *
 287  ******************************************************************************/
 288
 289 ACPI_STATUS
 290 AcpiUtInitGlobals (
 291     void)
 292 {
 293     ACPI_STATUS             Status;
 294     UINT32                  i;
 295
 296
 297     ACPI_FUNCTION_TRACE (UtInitGlobals);
 298
 299
 300     /* Create all memory caches */
 301
 302     Status = AcpiUtCreateCaches ();
 303     if (ACPI_FAILURE (Status))
 304     {
 305         return_ACPI_STATUS (Status);
 306     }
 307
 308     /* Mutex locked flags */
 309
 310     for (i = 0; i < ACPI_NUM_MUTEX; i++)
 311     {
 312         AcpiGbl_MutexInfo[i].Mutex          = NULL;
 313         AcpiGbl_MutexInfo[i].ThreadId       = ACPI_MUTEX_NOT_ACQUIRED;
 314         AcpiGbl_MutexInfo[i].UseCount       = 0;
 315     }
 316
 317     for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)
 318     {
 319         AcpiGbl_OwnerIdMask[i]              = 0;
 320     }
 321
 322     /* Last OwnerID is never valid */
 323
 324     AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
 325
 326     /* Event counters */
 327
 328     AcpiMethodCount                     = 0;
 329     AcpiSciCount                        = 0;
 330     AcpiGpeCount                        = 0;
 331
 332     for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
 333     {
 334         AcpiFixedEventCount[i]              = 0;
 335     }
 336
 337     /* GPE support */
 338
 339     AcpiGbl_AllGpesInitialized          = FALSE;
 340     AcpiGbl_GpeXruptListHead            = NULL;
 341     AcpiGbl_GpeFadtBlocks[0]            = NULL;
 342     AcpiGbl_GpeFadtBlocks[1]            = NULL;
 343     AcpiCurrentGpeCount                 = 0;
 344
 345     /* Global handlers */
 346
 347     AcpiGbl_SystemNotify.Handler        = NULL;
 348     AcpiGbl_DeviceNotify.Handler        = NULL;
 349     AcpiGbl_ExceptionHandler            = NULL;
 350     AcpiGbl_InitHandler                 = NULL;
 351     AcpiGbl_TableHandler                = NULL;
 352     AcpiGbl_InterfaceHandler            = NULL;
 353     AcpiGbl_GlobalEventHandler          = NULL;
 354
 355     /* Global Lock support */
 356
 357     AcpiGbl_GlobalLockSemaphore         = NULL;
 358     AcpiGbl_GlobalLockMutex             = NULL;
 359     AcpiGbl_GlobalLockAcquired          = FALSE;
 360     AcpiGbl_GlobalLockHandle            = 0;
 361     AcpiGbl_GlobalLockPresent           = FALSE;
 362
 363     /* Miscellaneous variables */
 364
 365     AcpiGbl_DSDT                        = NULL;
 366     AcpiGbl_CmSingleStep                = FALSE;
 367     AcpiGbl_DbTerminateThreads          = FALSE;
 368     AcpiGbl_Shutdown                    = FALSE;
 369     AcpiGbl_NsLookupCount               = 0;
 370     AcpiGbl_PsFindCount                 = 0;
 371     AcpiGbl_AcpiHardwarePresent         = TRUE;
 372     AcpiGbl_LastOwnerIdIndex            = 0;
 373     AcpiGbl_NextOwnerIdOffset           = 0;
 374     AcpiGbl_TraceMethodName             = 0;
 375     AcpiGbl_TraceDbgLevel               = 0;
 376     AcpiGbl_TraceDbgLayer               = 0;
 377     AcpiGbl_DebuggerConfiguration       = DEBUGGER_THREADING;
 378     AcpiGbl_DbOutputFlags               = ACPI_DB_CONSOLE_OUTPUT;
 379     AcpiGbl_OsiData                     = 0;
 380     AcpiGbl_OsiMutex                    = NULL;
 381     AcpiGbl_RegMethodsExecuted          = FALSE;
 382
 383     /* Hardware oriented */
 384
 385     AcpiGbl_EventsInitialized           = FALSE;
 386     AcpiGbl_SystemAwakeAndRunning       = TRUE;
 387
 388     /* Namespace */
 389
 390     AcpiGbl_ModuleCodeList              = NULL;
 391     AcpiGbl_RootNode                    = NULL;
 392     AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
 393     AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
 394     AcpiGbl_RootNodeStruct.Type         = ACPI_TYPE_DEVICE;
 395     AcpiGbl_RootNodeStruct.Parent       = NULL;
 396     AcpiGbl_RootNodeStruct.Child        = NULL;
 397     AcpiGbl_RootNodeStruct.Peer         = NULL;
 398     AcpiGbl_RootNodeStruct.Object       = NULL;
 399
 400
 401 #ifdef ACPI_DISASSEMBLER
 402     AcpiGbl_ExternalList                = NULL;
 403 #endif
 404
 405 #ifdef ACPI_DEBUG_OUTPUT
 406     AcpiGbl_LowestStackPointer          = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);
 407 #endif
 408
 409 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 410     AcpiGbl_DisplayFinalMemStats        = FALSE;
 411     AcpiGbl_DisableMemTracking          = FALSE;
 412 #endif
 413
 414     return_ACPI_STATUS (AE_OK);
 415 }
 416
 417 /* Public globals */
 418
 419 ACPI_EXPORT_SYMBOL (AcpiGbl_FADT)
 420 ACPI_EXPORT_SYMBOL (AcpiDbgLevel)
 421 ACPI_EXPORT_SYMBOL (AcpiDbgLayer)
 422 ACPI_EXPORT_SYMBOL (AcpiGpeCount)
 423 ACPI_EXPORT_SYMBOL (AcpiCurrentGpeCount)