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  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)
  424.