arch/all-pc/acpica/source/components/utilities/utglobal.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utglobal - Global variables for the ACPI subsystem
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2013, 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 #define __UTGLOBAL_C__
  45 #define EXPORT_ACPI_INTERFACES
  46 #define DEFINE_ACPI_GLOBALS
  47
  48 #include "acpi.h"
  49 #include "accommon.h"
  50
  51 #define _COMPONENT          ACPI_UTILITIES
  52         ACPI_MODULE_NAME    ("utglobal")
  53
  54
  55 /*******************************************************************************
  56  *
  57  * Static global variable initialization.
  58  *
  59  ******************************************************************************/
  60
  61 /*
  62  * We want the debug switches statically initialized so they
  63  * are already set when the debugger is entered.
  64  */
  65
  66 /* Debug switch - level and trace mask */
  67
  68 #ifdef ACPI_DEBUG_OUTPUT
  69 UINT32                      AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
  70 #else
  71 UINT32                      AcpiDbgLevel = ACPI_NORMAL_DEFAULT;
  72 #endif
  73
  74 /* Debug switch - layer (component) mask */
  75
  76 UINT32                      AcpiDbgLayer = ACPI_COMPONENT_DEFAULT;
  77 UINT32                      AcpiGbl_NestingLevel = 0;
  78
  79 /* Debugger globals */
  80
  81 BOOLEAN                     AcpiGbl_DbTerminateThreads = FALSE;
  82 BOOLEAN                     AcpiGbl_AbortMethod = FALSE;
  83 BOOLEAN                     AcpiGbl_MethodExecuting = FALSE;
  84
  85 /* System flags */
  86
  87 UINT32                      AcpiGbl_StartupFlags = 0;
  88
  89 /* System starts uninitialized */
  90
  91 BOOLEAN                     AcpiGbl_Shutdown = TRUE;
  92
  93 const char                  *AcpiGbl_SleepStateNames[ACPI_S_STATE_COUNT] =
  94 {
  95     "\\_S0_",
  96     "\\_S1_",
  97     "\\_S2_",
  98     "\\_S3_",
  99     "\\_S4_",
 100     "\\_S5_"
 101 };
 102
 103 const char                  *AcpiGbl_LowestDstateNames[ACPI_NUM_SxW_METHODS] =
 104 {
 105     "_S0W",
 106     "_S1W",
 107     "_S2W",
 108     "_S3W",
 109     "_S4W"
 110 };
 111
 112 const char                  *AcpiGbl_HighestDstateNames[ACPI_NUM_SxD_METHODS] =
 113 {
 114     "_S1D",
 115     "_S2D",
 116     "_S3D",
 117     "_S4D"
 118 };
 119
 120
 121 /*******************************************************************************
 122  *
 123  * Namespace globals
 124  *
 125  ******************************************************************************/
 126
 127 /*
 128  * Predefined ACPI Names (Built-in to the Interpreter)
 129  *
 130  * NOTES:
 131  * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
 132  *    during the initialization sequence.
 133  * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
 134  *    perform a Notify() operation on it. 09/2010: Changed to type Device.
 135  *    This still allows notifies, but does not confuse host code that
 136  *    searches for valid ThermalZone objects.
 137  */
 138 const ACPI_PREDEFINED_NAMES     AcpiGbl_PreDefinedNames[] =
 139 {
 140     {"_GPE",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 141     {"_PR_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 142     {"_SB_",    ACPI_TYPE_DEVICE,           NULL},
 143     {"_SI_",    ACPI_TYPE_LOCAL_SCOPE,      NULL},
 144     {"_TZ_",    ACPI_TYPE_DEVICE,           NULL},
 145     {"_REV",    ACPI_TYPE_INTEGER,          (char *) ACPI_CA_SUPPORT_LEVEL},
 146     {"_OS_",    ACPI_TYPE_STRING,           ACPI_OS_NAME},
 147     {"_GL_",    ACPI_TYPE_MUTEX,            (char *) 1},
 148
 149 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
 150     {"_OSI",    ACPI_TYPE_METHOD,           (char *) 1},
 151 #endif
 152
 153     /* Table terminator */
 154
 155     {NULL,      ACPI_TYPE_ANY,              NULL}
 156 };
 157
 158
 159 #if (!ACPI_REDUCED_HARDWARE)
 160 /******************************************************************************
 161  *
 162  * Event and Hardware globals
 163  *
 164  ******************************************************************************/
 165
 166 ACPI_BIT_REGISTER_INFO      AcpiGbl_BitRegisterInfo[ACPI_NUM_BITREG] =
 167 {
 168     /* Name                                     Parent Register             Register Bit Position                   Register Bit Mask       */
 169
 170     /* ACPI_BITREG_TIMER_STATUS         */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_TIMER_STATUS,          ACPI_BITMASK_TIMER_STATUS},
 171     /* ACPI_BITREG_BUS_MASTER_STATUS    */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_BUS_MASTER_STATUS,     ACPI_BITMASK_BUS_MASTER_STATUS},
 172     /* ACPI_BITREG_GLOBAL_LOCK_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_STATUS},
 173     /* ACPI_BITREG_POWER_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_STATUS},
 174     /* ACPI_BITREG_SLEEP_BUTTON_STATUS  */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_STATUS},
 175     /* ACPI_BITREG_RT_CLOCK_STATUS      */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_STATUS},
 176     /* ACPI_BITREG_WAKE_STATUS          */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_WAKE_STATUS,           ACPI_BITMASK_WAKE_STATUS},
 177     /* ACPI_BITREG_PCIEXP_WAKE_STATUS   */   {ACPI_REGISTER_PM1_STATUS,   ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,    ACPI_BITMASK_PCIEXP_WAKE_STATUS},
 178
 179     /* ACPI_BITREG_TIMER_ENABLE         */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_TIMER_ENABLE,          ACPI_BITMASK_TIMER_ENABLE},
 180     /* ACPI_BITREG_GLOBAL_LOCK_ENABLE   */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 181     /* ACPI_BITREG_POWER_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_POWER_BUTTON_ENABLE,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 182     /* ACPI_BITREG_SLEEP_BUTTON_ENABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 183     /* ACPI_BITREG_RT_CLOCK_ENABLE      */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_RT_CLOCK_ENABLE,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 184     /* ACPI_BITREG_PCIEXP_WAKE_DISABLE  */   {ACPI_REGISTER_PM1_ENABLE,   ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,   ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 185
 186     /* ACPI_BITREG_SCI_ENABLE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SCI_ENABLE,            ACPI_BITMASK_SCI_ENABLE},
 187     /* ACPI_BITREG_BUS_MASTER_RLD       */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_BUS_MASTER_RLD,        ACPI_BITMASK_BUS_MASTER_RLD},
 188     /* ACPI_BITREG_GLOBAL_LOCK_RELEASE  */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,   ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
 189     /* ACPI_BITREG_SLEEP_TYPE           */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_TYPE,            ACPI_BITMASK_SLEEP_TYPE},
 190     /* ACPI_BITREG_SLEEP_ENABLE         */   {ACPI_REGISTER_PM1_CONTROL,  ACPI_BITPOSITION_SLEEP_ENABLE,          ACPI_BITMASK_SLEEP_ENABLE},
 191
 192     /* ACPI_BITREG_ARB_DIS              */   {ACPI_REGISTER_PM2_CONTROL,  ACPI_BITPOSITION_ARB_DISABLE,           ACPI_BITMASK_ARB_DISABLE}
 193 };
 194
 195
 196 ACPI_FIXED_EVENT_INFO       AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS] =
 197 {
 198     /* ACPI_EVENT_PMTIMER       */  {ACPI_BITREG_TIMER_STATUS,          ACPI_BITREG_TIMER_ENABLE,        ACPI_BITMASK_TIMER_STATUS,          ACPI_BITMASK_TIMER_ENABLE},
 199     /* ACPI_EVENT_GLOBAL        */  {ACPI_BITREG_GLOBAL_LOCK_STATUS,    ACPI_BITREG_GLOBAL_LOCK_ENABLE,  ACPI_BITMASK_GLOBAL_LOCK_STATUS,    ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
 200     /* ACPI_EVENT_POWER_BUTTON  */  {ACPI_BITREG_POWER_BUTTON_STATUS,   ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS,   ACPI_BITMASK_POWER_BUTTON_ENABLE},
 201     /* ACPI_EVENT_SLEEP_BUTTON  */  {ACPI_BITREG_SLEEP_BUTTON_STATUS,   ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS,   ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
 202     /* ACPI_EVENT_RTC           */  {ACPI_BITREG_RT_CLOCK_STATUS,       ACPI_BITREG_RT_CLOCK_ENABLE,     ACPI_BITMASK_RT_CLOCK_STATUS,       ACPI_BITMASK_RT_CLOCK_ENABLE},
 203 };
 204 #endif /* !ACPI_REDUCED_HARDWARE */
 205
 206
 207 /*******************************************************************************
 208  *
 209  * FUNCTION:    AcpiUtInitGlobals
 210  *
 211  * PARAMETERS:  None
 212  *
 213  * RETURN:      Status
 214  *
 215  * DESCRIPTION: Initialize ACPICA globals. All globals that require specific
 216  *              initialization should be initialized here. This allows for
 217  *              a warm restart.
 218  *
 219  ******************************************************************************/
 220
 221 ACPI_STATUS
 222 AcpiUtInitGlobals (
 223     void)
 224 {
 225     ACPI_STATUS             Status;
 226     UINT32                  i;
 227
 228
 229     ACPI_FUNCTION_TRACE (UtInitGlobals);
 230
 231
 232     /* Create all memory caches */
 233
 234     Status = AcpiUtCreateCaches ();
 235     if (ACPI_FAILURE (Status))
 236     {
 237         return_ACPI_STATUS (Status);
 238     }
 239
 240     /* Address Range lists */
 241
 242     for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++)
 243     {
 244         AcpiGbl_AddressRangeList[i] = NULL;
 245     }
 246
 247     /* Mutex locked flags */
 248
 249     for (i = 0; i < ACPI_NUM_MUTEX; i++)
 250     {
 251         AcpiGbl_MutexInfo[i].Mutex          = NULL;
 252         AcpiGbl_MutexInfo[i].ThreadId       = ACPI_MUTEX_NOT_ACQUIRED;
 253         AcpiGbl_MutexInfo[i].UseCount       = 0;
 254     }
 255
 256     for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)
 257     {
 258         AcpiGbl_OwnerIdMask[i]              = 0;
 259     }
 260
 261     /* Last OwnerID is never valid */
 262
 263     AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
 264
 265     /* Event counters */
 266
 267     AcpiMethodCount                     = 0;
 268     AcpiSciCount                        = 0;
 269     AcpiGpeCount                        = 0;
 270
 271     for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
 272     {
 273         AcpiFixedEventCount[i]              = 0;
 274     }
 275
 276 #if (!ACPI_REDUCED_HARDWARE)
 277
 278     /* GPE/SCI support */
 279
 280     AcpiGbl_AllGpesInitialized          = FALSE;
 281     AcpiGbl_GpeXruptListHead            = NULL;
 282     AcpiGbl_GpeFadtBlocks[0]            = NULL;
 283     AcpiGbl_GpeFadtBlocks[1]            = NULL;
 284     AcpiCurrentGpeCount                 = 0;
 285
 286     AcpiGbl_GlobalEventHandler          = NULL;
 287     AcpiGbl_SciHandlerList              = NULL;
 288
 289 #endif /* !ACPI_REDUCED_HARDWARE */
 290
 291     /* Global handlers */
 292
 293     AcpiGbl_GlobalNotify[0].Handler     = NULL;
 294     AcpiGbl_GlobalNotify[1].Handler     = NULL;
 295     AcpiGbl_ExceptionHandler            = NULL;
 296     AcpiGbl_InitHandler                 = NULL;
 297     AcpiGbl_TableHandler                = NULL;
 298     AcpiGbl_InterfaceHandler            = NULL;
 299
 300     /* Global Lock support */
 301
 302     AcpiGbl_GlobalLockSemaphore         = NULL;
 303     AcpiGbl_GlobalLockMutex             = NULL;
 304     AcpiGbl_GlobalLockAcquired          = FALSE;
 305     AcpiGbl_GlobalLockHandle            = 0;
 306     AcpiGbl_GlobalLockPresent           = FALSE;
 307
 308     /* Miscellaneous variables */
 309
 310     AcpiGbl_DSDT                        = NULL;
 311     AcpiGbl_CmSingleStep                = FALSE;
 312     AcpiGbl_DbTerminateThreads          = FALSE;
 313     AcpiGbl_Shutdown                    = FALSE;
 314     AcpiGbl_NsLookupCount               = 0;
 315     AcpiGbl_PsFindCount                 = 0;
 316     AcpiGbl_AcpiHardwarePresent         = TRUE;
 317     AcpiGbl_LastOwnerIdIndex            = 0;
 318     AcpiGbl_NextOwnerIdOffset           = 0;
 319     AcpiGbl_TraceMethodName             = 0;
 320     AcpiGbl_TraceDbgLevel               = 0;
 321     AcpiGbl_TraceDbgLayer               = 0;
 322     AcpiGbl_DebuggerConfiguration       = DEBUGGER_THREADING;
 323     AcpiGbl_DbOutputFlags               = ACPI_DB_CONSOLE_OUTPUT;
 324     AcpiGbl_OsiMutex                    = NULL;
 325     AcpiGbl_RegMethodsExecuted          = FALSE;
 326
 327     /* Hardware oriented */
 328
 329     AcpiGbl_EventsInitialized           = FALSE;
 330     AcpiGbl_SystemAwakeAndRunning       = TRUE;
 331
 332     /* Namespace */
 333
 334     AcpiGbl_ModuleCodeList              = NULL;
 335     AcpiGbl_RootNode                    = NULL;
 336     AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
 337     AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
 338     AcpiGbl_RootNodeStruct.Type         = ACPI_TYPE_DEVICE;
 339     AcpiGbl_RootNodeStruct.Parent       = NULL;
 340     AcpiGbl_RootNodeStruct.Child        = NULL;
 341     AcpiGbl_RootNodeStruct.Peer         = NULL;
 342     AcpiGbl_RootNodeStruct.Object       = NULL;
 343
 344
 345 #ifdef ACPI_DISASSEMBLER
 346     AcpiGbl_ExternalList                = NULL;
 347     AcpiGbl_NumExternalMethods          = 0;
 348     AcpiGbl_ResolvedExternalMethods     = 0;
 349 #endif
 350
 351 #ifdef ACPI_DEBUG_OUTPUT
 352     AcpiGbl_LowestStackPointer          = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);
 353 #endif
 354
 355 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 356     AcpiGbl_DisplayFinalMemStats        = FALSE;
 357     AcpiGbl_DisableMemTracking          = FALSE;
 358 #endif
 359
 360     return_ACPI_STATUS (AE_OK);
 361 }
 362
 363 /* Public globals */
 364
 365 ACPI_EXPORT_SYMBOL (AcpiGbl_FADT)
 366 ACPI_EXPORT_SYMBOL (AcpiDbgLevel)
 367 ACPI_EXPORT_SYMBOL (AcpiDbgLayer)
 368 ACPI_EXPORT_SYMBOL (AcpiGpeCount)
 369 ACPI_EXPORT_SYMBOL (AcpiCurrentGpeCount)