コード例 #1
0
ファイル: dbcmds.c プロジェクト: dmarion/freebsd-armv6-sys
void
AcpiDbDisplayLocks (
    void)
{
    UINT32                  i;


    for (i = 0; i < ACPI_MAX_MUTEX; i++)
    {
        AcpiOsPrintf ("%26s : %s\n", AcpiUtGetMutexName (i),
            AcpiGbl_MutexInfo[i].ThreadId == ACPI_MUTEX_NOT_ACQUIRED
                ? "Locked" : "Unlocked");
    }
}
コード例 #2
0
ファイル: dbstats.c プロジェクト: apprisi/illumos-gate
ACPI_STATUS
AcpiDbDisplayStatistics (
    char                    *TypeArg)
{
    UINT32                  i;
    UINT32                  Temp;


    if (!TypeArg)
    {
        AcpiOsPrintf ("The following subcommands are available:\n    ALLOCATIONS, OBJECTS, MEMORY, MISC, SIZES, TABLES\n");
        return (AE_OK);
    }

    AcpiUtStrupr (TypeArg);
    Temp = AcpiDbMatchArgument (TypeArg, AcpiDbStatTypes);
    if (Temp == (UINT32) -1)
    {
        AcpiOsPrintf ("Invalid or unsupported argument\n");
        return (AE_OK);
    }


    switch (Temp)
    {
    case CMD_STAT_ALLOCATIONS:

#ifdef ACPI_DBG_TRACK_ALLOCATIONS
        AcpiUtDumpAllocationInfo ();
#endif
        break;

    case CMD_STAT_TABLES:

        AcpiOsPrintf ("ACPI Table Information (not implemented):\n\n");
        break;

    case CMD_STAT_OBJECTS:

        AcpiDbCountNamespaceObjects ();

        AcpiOsPrintf ("\nObjects defined in the current namespace:\n\n");

        AcpiOsPrintf ("%16.16s %10.10s %10.10s\n",
            "ACPI_TYPE", "NODES", "OBJECTS");

        for (i = 0; i < ACPI_TYPE_NS_NODE_MAX; i++)
        {
            AcpiOsPrintf ("%16.16s % 10ld% 10ld\n", AcpiUtGetTypeName (i),
                AcpiGbl_NodeTypeCount [i], AcpiGbl_ObjTypeCount [i]);
        }
        AcpiOsPrintf ("%16.16s % 10ld% 10ld\n", "Misc/Unknown",
            AcpiGbl_NodeTypeCountMisc, AcpiGbl_ObjTypeCountMisc);

        AcpiOsPrintf ("%16.16s % 10ld% 10ld\n", "TOTALS:",
            AcpiGbl_NumNodes, AcpiGbl_NumObjects);
        break;

    case CMD_STAT_MEMORY:

#ifdef ACPI_DBG_TRACK_ALLOCATIONS
        AcpiOsPrintf ("\n----Object Statistics (all in hex)---------\n");

        AcpiDbListInfo (AcpiGbl_GlobalList);
        AcpiDbListInfo (AcpiGbl_NsNodeList);
#endif

#ifdef ACPI_USE_LOCAL_CACHE
        AcpiOsPrintf ("\n----Cache Statistics (all in hex)---------\n");
        AcpiDbListInfo (AcpiGbl_OperandCache);
        AcpiDbListInfo (AcpiGbl_PsNodeCache);
        AcpiDbListInfo (AcpiGbl_PsNodeExtCache);
        AcpiDbListInfo (AcpiGbl_StateCache);
#endif

        break;

    case CMD_STAT_MISC:

        AcpiOsPrintf ("\nMiscellaneous Statistics:\n\n");
        AcpiOsPrintf ("Calls to AcpiPsFind:..  ........% 7ld\n",
            AcpiGbl_PsFindCount);
        AcpiOsPrintf ("Calls to AcpiNsLookup:..........% 7ld\n",
            AcpiGbl_NsLookupCount);

        AcpiOsPrintf ("\n");

        AcpiOsPrintf ("Mutex usage:\n\n");
        for (i = 0; i < ACPI_NUM_MUTEX; i++)
        {
            AcpiOsPrintf ("%-28s:       % 7ld\n",
                AcpiUtGetMutexName (i), AcpiGbl_MutexInfo[i].UseCount);
        }
        break;


    case CMD_STAT_SIZES:

        AcpiOsPrintf ("\nInternal object sizes:\n\n");

        AcpiOsPrintf ("Common           %3d\n", sizeof (ACPI_OBJECT_COMMON));
        AcpiOsPrintf ("Number           %3d\n", sizeof (ACPI_OBJECT_INTEGER));
        AcpiOsPrintf ("String           %3d\n", sizeof (ACPI_OBJECT_STRING));
        AcpiOsPrintf ("Buffer           %3d\n", sizeof (ACPI_OBJECT_BUFFER));
        AcpiOsPrintf ("Package          %3d\n", sizeof (ACPI_OBJECT_PACKAGE));
        AcpiOsPrintf ("BufferField      %3d\n", sizeof (ACPI_OBJECT_BUFFER_FIELD));
        AcpiOsPrintf ("Device           %3d\n", sizeof (ACPI_OBJECT_DEVICE));
        AcpiOsPrintf ("Event            %3d\n", sizeof (ACPI_OBJECT_EVENT));
        AcpiOsPrintf ("Method           %3d\n", sizeof (ACPI_OBJECT_METHOD));
        AcpiOsPrintf ("Mutex            %3d\n", sizeof (ACPI_OBJECT_MUTEX));
        AcpiOsPrintf ("Region           %3d\n", sizeof (ACPI_OBJECT_REGION));
        AcpiOsPrintf ("PowerResource    %3d\n", sizeof (ACPI_OBJECT_POWER_RESOURCE));
        AcpiOsPrintf ("Processor        %3d\n", sizeof (ACPI_OBJECT_PROCESSOR));
        AcpiOsPrintf ("ThermalZone      %3d\n", sizeof (ACPI_OBJECT_THERMAL_ZONE));
        AcpiOsPrintf ("RegionField      %3d\n", sizeof (ACPI_OBJECT_REGION_FIELD));
        AcpiOsPrintf ("BankField        %3d\n", sizeof (ACPI_OBJECT_BANK_FIELD));
        AcpiOsPrintf ("IndexField       %3d\n", sizeof (ACPI_OBJECT_INDEX_FIELD));
        AcpiOsPrintf ("Reference        %3d\n", sizeof (ACPI_OBJECT_REFERENCE));
        AcpiOsPrintf ("Notify           %3d\n", sizeof (ACPI_OBJECT_NOTIFY_HANDLER));
        AcpiOsPrintf ("AddressSpace     %3d\n", sizeof (ACPI_OBJECT_ADDR_HANDLER));
        AcpiOsPrintf ("Extra            %3d\n", sizeof (ACPI_OBJECT_EXTRA));
        AcpiOsPrintf ("Data             %3d\n", sizeof (ACPI_OBJECT_DATA));

        AcpiOsPrintf ("\n");

        AcpiOsPrintf ("ParseObject      %3d\n", sizeof (ACPI_PARSE_OBJ_COMMON));
        AcpiOsPrintf ("ParseObjectNamed %3d\n", sizeof (ACPI_PARSE_OBJ_NAMED));
        AcpiOsPrintf ("ParseObjectAsl   %3d\n", sizeof (ACPI_PARSE_OBJ_ASL));
        AcpiOsPrintf ("OperandObject    %3d\n", sizeof (ACPI_OPERAND_OBJECT));
        AcpiOsPrintf ("NamespaceNode    %3d\n", sizeof (ACPI_NAMESPACE_NODE));
        AcpiOsPrintf ("AcpiObject       %3d\n", sizeof (ACPI_OBJECT));

        break;


    case CMD_STAT_STACK:
#if defined(ACPI_DEBUG_OUTPUT)

        Temp = (UINT32) ACPI_PTR_DIFF (AcpiGbl_EntryStackPointer, AcpiGbl_LowestStackPointer);

        AcpiOsPrintf ("\nSubsystem Stack Usage:\n\n");
        AcpiOsPrintf ("Entry Stack Pointer          %p\n", AcpiGbl_EntryStackPointer);
        AcpiOsPrintf ("Lowest Stack Pointer         %p\n", AcpiGbl_LowestStackPointer);
        AcpiOsPrintf ("Stack Use                    %X (%u)\n", Temp, Temp);
        AcpiOsPrintf ("Deepest Procedure Nesting    %u\n", AcpiGbl_DeepestNesting);
#endif
        break;

    default:
        break;
    }

    AcpiOsPrintf ("\n");
    return (AE_OK);
}
コード例 #3
0
ファイル: utmutex.c プロジェクト: apprisi/illumos-gate
ACPI_STATUS
AcpiUtAcquireMutex (
    ACPI_MUTEX_HANDLE       MutexId)
{
    ACPI_STATUS             Status;
    ACPI_THREAD_ID          ThisThreadId;


    ACPI_FUNCTION_NAME (UtAcquireMutex);


    if (MutexId > ACPI_MAX_MUTEX)
    {
        return (AE_BAD_PARAMETER);
    }

    ThisThreadId = AcpiOsGetThreadId ();

#ifdef ACPI_MUTEX_DEBUG
    {
        UINT32                  i;
        /*
         * Mutex debug code, for internal debugging only.
         *
         * Deadlock prevention.  Check if this thread owns any mutexes of value
         * greater than or equal to this one.  If so, the thread has violated
         * the mutex ordering rule.  This indicates a coding error somewhere in
         * the ACPI subsystem code.
         */
        for (i = MutexId; i < ACPI_NUM_MUTEX; i++)
        {
            if (AcpiGbl_MutexInfo[i].ThreadId == ThisThreadId)
            {
                if (i == MutexId)
                {
                    ACPI_ERROR ((AE_INFO,
                        "Mutex [%s] already acquired by this thread [%u]",
                        AcpiUtGetMutexName (MutexId),
                        (UINT32) ThisThreadId));

                    return (AE_ALREADY_ACQUIRED);
                }

                ACPI_ERROR ((AE_INFO,
                    "Invalid acquire order: Thread %u owns [%s], wants [%s]",
                    (UINT32) ThisThreadId, AcpiUtGetMutexName (i),
                    AcpiUtGetMutexName (MutexId)));

                return (AE_ACQUIRE_DEADLOCK);
            }
        }
    }
#endif

    ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
        "Thread %u attempting to acquire Mutex [%s]\n",
        (UINT32) ThisThreadId, AcpiUtGetMutexName (MutexId)));

    Status = AcpiOsAcquireMutex (AcpiGbl_MutexInfo[MutexId].Mutex,
                ACPI_WAIT_FOREVER);
    if (ACPI_SUCCESS (Status))
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %u acquired Mutex [%s]\n",
            (UINT32) ThisThreadId, AcpiUtGetMutexName (MutexId)));

        AcpiGbl_MutexInfo[MutexId].UseCount++;
        AcpiGbl_MutexInfo[MutexId].ThreadId = ThisThreadId;
    }
    else
    {
        ACPI_EXCEPTION ((AE_INFO, Status,
            "Thread %u could not acquire Mutex [0x%X]",
            (UINT32) ThisThreadId, MutexId));
    }

    return (Status);
}
コード例 #4
0
ファイル: utmutex.c プロジェクト: apprisi/illumos-gate
ACPI_STATUS
AcpiUtReleaseMutex (
    ACPI_MUTEX_HANDLE       MutexId)
{
    ACPI_THREAD_ID          ThisThreadId;


    ACPI_FUNCTION_NAME (UtReleaseMutex);


    ThisThreadId = AcpiOsGetThreadId ();
    ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %u releasing Mutex [%s]\n",
        (UINT32) ThisThreadId, AcpiUtGetMutexName (MutexId)));

    if (MutexId > ACPI_MAX_MUTEX)
    {
        return (AE_BAD_PARAMETER);
    }

    /*
     * Mutex must be acquired in order to release it!
     */
    if (AcpiGbl_MutexInfo[MutexId].ThreadId == ACPI_MUTEX_NOT_ACQUIRED)
    {
        ACPI_ERROR ((AE_INFO,
            "Mutex [0x%X] is not acquired, cannot release", MutexId));

        return (AE_NOT_ACQUIRED);
    }

#ifdef ACPI_MUTEX_DEBUG
    {
        UINT32                  i;
        /*
         * Mutex debug code, for internal debugging only.
         *
         * Deadlock prevention.  Check if this thread owns any mutexes of value
         * greater than this one.  If so, the thread has violated the mutex
         * ordering rule.  This indicates a coding error somewhere in
         * the ACPI subsystem code.
         */
        for (i = MutexId; i < ACPI_NUM_MUTEX; i++)
        {
            if (AcpiGbl_MutexInfo[i].ThreadId == ThisThreadId)
            {
                if (i == MutexId)
                {
                    continue;
                }

                ACPI_ERROR ((AE_INFO,
                    "Invalid release order: owns [%s], releasing [%s]",
                    AcpiUtGetMutexName (i), AcpiUtGetMutexName (MutexId)));

                return (AE_RELEASE_DEADLOCK);
            }
        }
    }
#endif

    /* Mark unlocked FIRST */

    AcpiGbl_MutexInfo[MutexId].ThreadId = ACPI_MUTEX_NOT_ACQUIRED;

    AcpiOsReleaseMutex (AcpiGbl_MutexInfo[MutexId].Mutex);
    return (AE_OK);
}
コード例 #5
0
ファイル: dbstats.c プロジェクト: MarginC/kame
ACPI_STATUS
AcpiDbDisplayStatistics (
    NATIVE_CHAR             *TypeArg)
{
    UINT32                  i;
    UINT32                  Type;
    UINT32                  Size;


    if (!AcpiGbl_DSDT)
    {
        AcpiOsPrintf ("*** Warning:  There is no DSDT loaded\n");
    }

    if (!TypeArg)
    {
        AcpiOsPrintf ("The following subcommands are available:\n    ALLOCATIONS, OBJECTS, MEMORY, MISC, SIZES, TABLES\n");
        return (AE_OK);
    }

    STRUPR (TypeArg);
    Type = AcpiDbMatchArgument (TypeArg, AcpiDbStatTypes);
    if (Type == (UINT32) -1)
    {
        AcpiOsPrintf ("Invalid or unsupported argument\n");
        return (AE_OK);
    }


    switch (Type)
    {
#ifndef PARSER_ONLY
    case CMD_ALLOCATIONS:
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
        AcpiUtDumpAllocationInfo ();
#endif
        break;
#endif

    case CMD_TABLES:

        AcpiOsPrintf ("ACPI Table Information:\n\n");
        if (AcpiGbl_DSDT)
        {
            AcpiOsPrintf ("DSDT Length:................% 7ld (%X)\n", AcpiGbl_DSDT->Length, AcpiGbl_DSDT->Length);
        }
        break;

    case CMD_OBJECTS:

#ifndef PARSER_ONLY

        AcpiDbCountNamespaceObjects ();

        AcpiOsPrintf ("\nObjects defined in the current namespace:\n\n");

        AcpiOsPrintf ("%16.16s % 10.10s % 10.10s\n", "ACPI_TYPE", "NODES", "OBJECTS");

        for (i = 0; i < INTERNAL_TYPE_NODE_MAX; i++)
        {
            AcpiOsPrintf ("%16.16s % 10ld% 10ld\n", AcpiUtGetTypeName (i),
                AcpiGbl_NodeTypeCount [i], AcpiGbl_ObjTypeCount [i]);
        }
        AcpiOsPrintf ("%16.16s % 10ld% 10ld\n", "Misc/Unknown",
            AcpiGbl_NodeTypeCountMisc, AcpiGbl_ObjTypeCountMisc);

        AcpiOsPrintf ("%16.16s % 10ld% 10ld\n", "TOTALS:",
            AcpiGbl_NumNodes, AcpiGbl_NumObjects);

#endif
        break;

    case CMD_MEMORY:

#ifdef ACPI_DBG_TRACK_ALLOCATIONS
        AcpiOsPrintf ("\n----Object and Cache Statistics---------------------------------------------\n");

        for (i = 0; i < ACPI_NUM_MEM_LISTS; i++)
        {
            AcpiOsPrintf ("\n%s\n", AcpiGbl_MemoryLists[i].ListName);

            if (AcpiGbl_MemoryLists[i].MaxCacheDepth > 0)
            {
                AcpiOsPrintf ("    Cache: [Depth Max Avail Size]         % 7d % 7d % 7d % 7d B\n",
                        AcpiGbl_MemoryLists[i].CacheDepth,
                        AcpiGbl_MemoryLists[i].MaxCacheDepth,
                        AcpiGbl_MemoryLists[i].MaxCacheDepth - AcpiGbl_MemoryLists[i].CacheDepth,
                        (AcpiGbl_MemoryLists[i].CacheDepth * AcpiGbl_MemoryLists[i].ObjectSize));

                AcpiOsPrintf ("    Cache: [Requests Hits Misses ObjSize] % 7d % 7d % 7d % 7d B\n",
                        AcpiGbl_MemoryLists[i].CacheRequests,
                        AcpiGbl_MemoryLists[i].CacheHits,
                        AcpiGbl_MemoryLists[i].CacheRequests - AcpiGbl_MemoryLists[i].CacheHits,
                        AcpiGbl_MemoryLists[i].ObjectSize);
            }

            Outstanding = AcpiGbl_MemoryLists[i].TotalAllocated -
                            AcpiGbl_MemoryLists[i].TotalFreed -
                            AcpiGbl_MemoryLists[i].CacheDepth;

            if (AcpiGbl_MemoryLists[i].ObjectSize)
            {
                Size = ROUND_UP_TO_1K (Outstanding * AcpiGbl_MemoryLists[i].ObjectSize);
            }
            else
            {
                Size = ROUND_UP_TO_1K (AcpiGbl_MemoryLists[i].CurrentTotalSize);
            }

            AcpiOsPrintf ("    Mem:   [Alloc Free Outstanding Size]  % 7d % 7d % 7d % 7d Kb\n",
                    AcpiGbl_MemoryLists[i].TotalAllocated,
                    AcpiGbl_MemoryLists[i].TotalFreed,
                    Outstanding, Size);
        }
#endif

        break;

    case CMD_MISC:

        AcpiOsPrintf ("\nMiscellaneous Statistics:\n\n");
        AcpiOsPrintf ("Calls to AcpiPsFind:..  ........% 7ld\n", AcpiGbl_PsFindCount);
        AcpiOsPrintf ("Calls to AcpiNsLookup:..........% 7ld\n", AcpiGbl_NsLookupCount);

        AcpiOsPrintf ("\n");

        AcpiOsPrintf ("Mutex usage:\n\n");
        for (i = 0; i < NUM_MTX; i++)
        {
            AcpiOsPrintf ("%-28s:       % 7ld\n", AcpiUtGetMutexName (i), AcpiGbl_AcpiMutexInfo[i].UseCount);
        }
        break;


    case CMD_SIZES:

        AcpiOsPrintf ("\nInternal object sizes:\n\n");

        AcpiOsPrintf ("Common           %3d\n", sizeof (ACPI_OBJECT_COMMON));
        AcpiOsPrintf ("Number           %3d\n", sizeof (ACPI_OBJECT_INTEGER));
        AcpiOsPrintf ("String           %3d\n", sizeof (ACPI_OBJECT_STRING));
        AcpiOsPrintf ("Buffer           %3d\n", sizeof (ACPI_OBJECT_BUFFER));
        AcpiOsPrintf ("Package          %3d\n", sizeof (ACPI_OBJECT_PACKAGE));
        AcpiOsPrintf ("BufferField      %3d\n", sizeof (ACPI_OBJECT_BUFFER_FIELD));
        AcpiOsPrintf ("Device           %3d\n", sizeof (ACPI_OBJECT_DEVICE));
        AcpiOsPrintf ("Event            %3d\n", sizeof (ACPI_OBJECT_EVENT));
        AcpiOsPrintf ("Method           %3d\n", sizeof (ACPI_OBJECT_METHOD));
        AcpiOsPrintf ("Mutex            %3d\n", sizeof (ACPI_OBJECT_MUTEX));
        AcpiOsPrintf ("Region           %3d\n", sizeof (ACPI_OBJECT_REGION));
        AcpiOsPrintf ("PowerResource    %3d\n", sizeof (ACPI_OBJECT_POWER_RESOURCE));
        AcpiOsPrintf ("Processor        %3d\n", sizeof (ACPI_OBJECT_PROCESSOR));
        AcpiOsPrintf ("ThermalZone      %3d\n", sizeof (ACPI_OBJECT_THERMAL_ZONE));
        AcpiOsPrintf ("RegionField      %3d\n", sizeof (ACPI_OBJECT_REGION_FIELD));
        AcpiOsPrintf ("BankField        %3d\n", sizeof (ACPI_OBJECT_BANK_FIELD));
        AcpiOsPrintf ("IndexField       %3d\n", sizeof (ACPI_OBJECT_INDEX_FIELD));
        AcpiOsPrintf ("Reference        %3d\n", sizeof (ACPI_OBJECT_REFERENCE));
        AcpiOsPrintf ("NotifyHandler    %3d\n", sizeof (ACPI_OBJECT_NOTIFY_HANDLER));
        AcpiOsPrintf ("AddrHandler      %3d\n", sizeof (ACPI_OBJECT_ADDR_HANDLER));
        AcpiOsPrintf ("Extra            %3d\n", sizeof (ACPI_OBJECT_EXTRA));

        AcpiOsPrintf ("\n");

        AcpiOsPrintf ("ParseObject      %3d\n", sizeof (ACPI_PARSE_OBJECT));
        AcpiOsPrintf ("Parse2Object     %3d\n", sizeof (ACPI_PARSE2_OBJECT));
        AcpiOsPrintf ("OperandObject    %3d\n", sizeof (ACPI_OPERAND_OBJECT));
        AcpiOsPrintf ("NamespaceNode    %3d\n", sizeof (ACPI_NAMESPACE_NODE));

        break;


    case CMD_STACK:

        Size = AcpiGbl_EntryStackPointer - AcpiGbl_LowestStackPointer;

        AcpiOsPrintf ("\nSubsystem Stack Usage:\n\n");
        AcpiOsPrintf ("Entry Stack Pointer          %X\n", AcpiGbl_EntryStackPointer);
        AcpiOsPrintf ("Lowest Stack Pointer         %X\n", AcpiGbl_LowestStackPointer);
        AcpiOsPrintf ("Stack Use                    %X (%d)\n", Size, Size);
        AcpiOsPrintf ("Deepest Procedure Nesting    %d\n", AcpiGbl_DeepestNesting);
        break;
    }

    AcpiOsPrintf ("\n");
    return (AE_OK);
}
コード例 #6
0
ファイル: oswinxf.c プロジェクト: liangqi/acpica
ACPI_STATUS
AcpiOsWaitSemaphore (
    ACPI_SEMAPHORE      Handle,
    UINT32              Units,
    UINT16              Timeout)
{
    UINT32              Index = (UINT32) Handle;
    UINT32              WaitStatus;
    UINT32              OsTimeout = Timeout;


    ACPI_FUNCTION_ENTRY ();


    if ((Index >= ACPI_OS_MAX_SEMAPHORES) ||
        !AcpiGbl_Semaphores[Index].OsHandle)
    {
        return (AE_BAD_PARAMETER);
    }

    if (Units > 1)
    {
        printf ("WaitSemaphore: Attempt to receive %u units\n", Units);
        return (AE_NOT_IMPLEMENTED);
    }

    if (Timeout == ACPI_WAIT_FOREVER)
    {
        OsTimeout = INFINITE;
        if (AcpiGbl_DebugTimeout)
        {
            /* The debug timeout will prevent hang conditions */

            OsTimeout = ACPI_OS_DEBUG_TIMEOUT;
        }
    }
    else
    {
        /* Add 10ms to account for clock tick granularity */

        OsTimeout += 10;
    }

    WaitStatus = WaitForSingleObject (AcpiGbl_Semaphores[Index].OsHandle, OsTimeout);
    if (WaitStatus == WAIT_TIMEOUT)
    {
        if (AcpiGbl_DebugTimeout)
        {
            ACPI_EXCEPTION ((AE_INFO, AE_TIME,
                "Debug timeout on semaphore 0x%04X (%ums)\n",
                Index, ACPI_OS_DEBUG_TIMEOUT));
        }
        return (AE_TIME);
    }

    if (AcpiGbl_Semaphores[Index].CurrentUnits == 0)
    {
        ACPI_ERROR ((AE_INFO, "%s - No unit received. Timeout 0x%X, OS_Status 0x%X",
            AcpiUtGetMutexName (Index), Timeout, WaitStatus));

        return (AE_OK);
    }

    AcpiGbl_Semaphores[Index].CurrentUnits--;
    return (AE_OK);
}
コード例 #7
0
ファイル: utmisc.c プロジェクト: UnitedMarsupials/kame
ACPI_STATUS
AcpiUtReleaseMutex (
    ACPI_MUTEX_HANDLE       MutexId)
{
    ACPI_STATUS             Status;
    UINT32                  i;
    UINT32                  ThisThreadId;


    ACPI_FUNCTION_NAME ("UtReleaseMutex");


    ThisThreadId = AcpiOsGetThreadId ();
    ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
        "Thread %X releasing Mutex [%s]\n", ThisThreadId,
        AcpiUtGetMutexName (MutexId)));

    if (MutexId > MAX_MTX)
    {
        return (AE_BAD_PARAMETER);
    }

    /*
     * Mutex must be acquired in order to release it!
     */
    if (AcpiGbl_AcpiMutexInfo[MutexId].OwnerId == ACPI_MUTEX_NOT_ACQUIRED)
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
                "Mutex [%s] is not acquired, cannot release\n",
                AcpiUtGetMutexName (MutexId)));

        return (AE_NOT_ACQUIRED);
    }

    /*
     * Deadlock prevention.  Check if this thread owns any mutexes of value
     * greater than this one.  If so, the thread has violated the mutex
     * ordering rule.  This indicates a coding error somewhere in
     * the ACPI subsystem code.
     */
    for (i = MutexId; i < MAX_MTX; i++)
    {
        if (AcpiGbl_AcpiMutexInfo[i].OwnerId == ThisThreadId)
        {
            if (i == MutexId)
            {
                continue;
            }

            ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
                    "Invalid release order: owns [%s], releasing [%s]\n",
                    AcpiUtGetMutexName (i), AcpiUtGetMutexName (MutexId)));

            return (AE_RELEASE_DEADLOCK);
        }
    }

    /* Mark unlocked FIRST */

    AcpiGbl_AcpiMutexInfo[MutexId].OwnerId = ACPI_MUTEX_NOT_ACQUIRED;

    Status = AcpiOsSignalSemaphore (AcpiGbl_AcpiMutexInfo[MutexId].Mutex, 1);

    if (ACPI_FAILURE (Status))
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Thread %X could not release Mutex [%s] %s\n",
                    ThisThreadId, AcpiUtGetMutexName (MutexId),
                    AcpiFormatException (Status)));
    }
    else
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X released Mutex [%s]\n",
                    ThisThreadId, AcpiUtGetMutexName (MutexId)));
    }

    return (Status);
}
コード例 #8
0
ファイル: utmisc.c プロジェクト: UnitedMarsupials/kame
ACPI_STATUS
AcpiUtAcquireMutex (
    ACPI_MUTEX_HANDLE       MutexId)
{
    ACPI_STATUS             Status;
    UINT32                  i;
    UINT32                  ThisThreadId;


    ACPI_FUNCTION_NAME ("UtAcquireMutex");


    if (MutexId > MAX_MTX)
    {
        return (AE_BAD_PARAMETER);
    }

    ThisThreadId = AcpiOsGetThreadId ();

    /*
     * Deadlock prevention.  Check if this thread owns any mutexes of value
     * greater than or equal to this one.  If so, the thread has violated
     * the mutex ordering rule.  This indicates a coding error somewhere in
     * the ACPI subsystem code.
     */
    for (i = MutexId; i < MAX_MTX; i++)
    {
        if (AcpiGbl_AcpiMutexInfo[i].OwnerId == ThisThreadId)
        {
            if (i == MutexId)
            {
                ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
                        "Mutex [%s] already acquired by this thread [%X]\n",
                        AcpiUtGetMutexName (MutexId), ThisThreadId));

                return (AE_ALREADY_ACQUIRED);
            }

            ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
                    "Invalid acquire order: Thread %X owns [%s], wants [%s]\n",
                    ThisThreadId, AcpiUtGetMutexName (i),
                    AcpiUtGetMutexName (MutexId)));

            return (AE_ACQUIRE_DEADLOCK);
        }
    }

    ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
                "Thread %X attempting to acquire Mutex [%s]\n",
                ThisThreadId, AcpiUtGetMutexName (MutexId)));

    Status = AcpiOsWaitSemaphore (AcpiGbl_AcpiMutexInfo[MutexId].Mutex,
                                    1, ACPI_WAIT_FOREVER);
    if (ACPI_SUCCESS (Status))
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X acquired Mutex [%s]\n",
                    ThisThreadId, AcpiUtGetMutexName (MutexId)));

        AcpiGbl_AcpiMutexInfo[MutexId].UseCount++;
        AcpiGbl_AcpiMutexInfo[MutexId].OwnerId = ThisThreadId;
    }
    else
    {
        ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Thread %X could not acquire Mutex [%s] %s\n",
                    ThisThreadId, AcpiUtGetMutexName (MutexId),
                    AcpiFormatException (Status)));
    }

    return (Status);
}
コード例 #9
0
ファイル: oswinxf.c プロジェクト: minggr/acpica
ACPI_STATUS
AcpiOsActualWaitSemaphore (
    ACPI_HANDLE         Handle,
    UINT32              Units,
    UINT16              Timeout)
{
#ifdef _MULTI_THREADED
    UINT32              Index = (UINT32) Handle;
    UINT32              WaitStatus;
    UINT32              OsTimeout = Timeout;


    ACPI_FUNCTION_ENTRY ();


    if ((Index >= NUM_SEMAPHORES) ||
        !AcpiGbl_Semaphores[Index].OsHandle)
    {
        return AE_BAD_PARAMETER;
    }

    if (Units > 1)
    {
        printf ("WaitSemaphore: Attempt to receive %d units\n", Units);
        return AE_NOT_IMPLEMENTED;
    }


/* TBD: Make this a command line option so that we can catch
 * synchronization deadlocks
 *
    if (Timeout == INFINITE)
        Timeout = 400000;
*/

    if (Timeout == ACPI_WAIT_FOREVER)
    {
        OsTimeout = INFINITE;
    }
    else
    {
        /* Add 10ms to account for clock tick granularity */

        OsTimeout += 10;
    }

    WaitStatus = WaitForSingleObject (AcpiGbl_Semaphores[Index].OsHandle, OsTimeout);
    if (WaitStatus == WAIT_TIMEOUT)
    {
/* Make optional -- wait of 0 is used to detect if unit is available
        ACPI_ERROR ((AE_INFO, "Timeout on semaphore %d",
            Handle));
*/
        return AE_TIME;
    }

    if (AcpiGbl_Semaphores[Index].CurrentUnits == 0)
    {
        ACPI_ERROR ((AE_INFO, "%s - No unit received. Timeout %X, OSstatus 0x%X",
            AcpiUtGetMutexName (Index), Timeout, WaitStatus));

        return AE_OK;
    }

    AcpiGbl_Semaphores[Index].CurrentUnits--;
#endif

    return AE_OK;
}