ACPI_STATUS
AcpiOsCreateLock (
ACPI_SPINLOCK *OutHandle)
{
return (AcpiOsCreateSemaphore (1, 1, OutHandle));
}
ACPI_STATUS
AcpiOsCreateMutex (
ACPI_MUTEX *OutHandle)
{
return (AcpiOsCreateSemaphore (1, 1, OutHandle));
}
void
AcpiDbCreateExecutionThreads (
char *NumThreadsArg,
char *NumLoopsArg,
char *MethodNameArg)
{
ACPI_STATUS Status;
UINT32 NumThreads;
UINT32 NumLoops;
UINT32 i;
UINT32 Size;
ACPI_MUTEX MainThreadGate;
ACPI_MUTEX ThreadCompleteGate;
ACPI_MUTEX InfoGate;
/* Get the arguments */
NumThreads = ACPI_STRTOUL (NumThreadsArg, NULL, 0);
NumLoops = ACPI_STRTOUL (NumLoopsArg, NULL, 0);
if (!NumThreads || !NumLoops)
{
AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n",
NumThreads, NumLoops);
return;
}
/*
* Create the semaphore for synchronization of
* the created threads with the main thread.
*/
Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not create semaphore for synchronization with the main thread, %s\n",
AcpiFormatException (Status));
return;
}
/*
* Create the semaphore for synchronization
* between the created threads.
*/
Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not create semaphore for synchronization between the created threads, %s\n",
AcpiFormatException (Status));
(void) AcpiOsDeleteSemaphore (MainThreadGate);
return;
}
Status = AcpiOsCreateSemaphore (1, 1, &InfoGate);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not create semaphore for synchronization of AcpiGbl_DbMethodInfo, %s\n",
AcpiFormatException (Status));
(void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
(void) AcpiOsDeleteSemaphore (MainThreadGate);
return;
}
ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO));
/* Array to store IDs of threads */
AcpiGbl_DbMethodInfo.NumThreads = NumThreads;
Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads;
AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size);
if (AcpiGbl_DbMethodInfo.Threads == NULL)
{
AcpiOsPrintf ("No memory for thread IDs array\n");
(void) AcpiOsDeleteSemaphore (MainThreadGate);
(void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
(void) AcpiOsDeleteSemaphore (InfoGate);
return;
}
ACPI_MEMSET (AcpiGbl_DbMethodInfo.Threads, 0, Size);
/* Setup the context to be passed to each thread */
AcpiGbl_DbMethodInfo.Name = MethodNameArg;
AcpiGbl_DbMethodInfo.Flags = 0;
AcpiGbl_DbMethodInfo.NumLoops = NumLoops;
AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate;
AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate;
AcpiGbl_DbMethodInfo.InfoGate = InfoGate;
/* Init arguments to be passed to method */
AcpiGbl_DbMethodInfo.InitArgs = 1;
AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments;
AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr;
AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr;
AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr;
AcpiGbl_DbMethodInfo.Arguments[3] = NULL;
AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes;
AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER;
AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER;
AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER;
AcpiDbUint32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr);
Status = AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
if (ACPI_FAILURE (Status))
{
goto CleanupAndExit;
}
/* Get the NS node, determines existence also */
Status = AcpiGetHandle (NULL, AcpiGbl_DbMethodInfo.Pathname,
&AcpiGbl_DbMethodInfo.Method);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("%s Could not get handle for %s\n",
AcpiFormatException (Status), AcpiGbl_DbMethodInfo.Pathname);
goto CleanupAndExit;
}
/* Create the threads */
AcpiOsPrintf ("Creating %X threads to execute %X times each\n",
NumThreads, NumLoops);
for (i = 0; i < (NumThreads); i++)
{
Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbMethodThread,
&AcpiGbl_DbMethodInfo);
if (ACPI_FAILURE (Status))
{
break;
}
}
/* Wait for all threads to complete */
(void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER);
AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads);
AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
CleanupAndExit:
/* Cleanup and exit */
(void) AcpiOsDeleteSemaphore (MainThreadGate);
(void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
(void) AcpiOsDeleteSemaphore (InfoGate);
AcpiOsFree (AcpiGbl_DbMethodInfo.Threads);
AcpiGbl_DbMethodInfo.Threads = NULL;
}
ACPI_STATUS
AcpiNsRootInitialize (
void)
{
ACPI_STATUS Status;
const ACPI_PREDEFINED_NAMES *InitVal = NULL;
ACPI_NAMESPACE_NODE *NewNode;
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_STRING Val = NULL;
ACPI_FUNCTION_TRACE (NsRootInitialize);
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* The global root ptr is initially NULL, so a non-NULL value indicates
* that AcpiNsRootInitialize() has already been called; just return.
*/
if (AcpiGbl_RootNode)
{
Status = AE_OK;
goto UnlockAndExit;
}
/*
* Tell the rest of the subsystem that the root is initialized
* (This is OK because the namespace is locked)
*/
AcpiGbl_RootNode = &AcpiGbl_RootNodeStruct;
/* Enter the pre-defined names in the name table */
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"Entering predefined entries into namespace\n"));
for (InitVal = AcpiGbl_PreDefinedNames; InitVal->Name; InitVal++)
{
/* _OSI is optional for now, will be permanent later */
if (!ACPI_STRCMP (InitVal->Name, "_OSI") && !AcpiGbl_CreateOsiMethod)
{
continue;
}
Status = AcpiNsLookup (NULL, __UNCONST(InitVal->Name), InitVal->Type,
ACPI_IMODE_LOAD_PASS2, ACPI_NS_NO_UPSEARCH,
NULL, &NewNode);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"Could not create predefined name %s",
InitVal->Name));
continue;
}
/*
* Name entered successfully. If entry in PreDefinedNames[] specifies
* an initial value, create the initial value.
*/
if (InitVal->Val)
{
Status = AcpiOsPredefinedOverride (InitVal, &Val);
if (ACPI_FAILURE (Status))
{
ACPI_ERROR ((AE_INFO,
"Could not override predefined %s",
InitVal->Name));
}
if (!Val)
{
Val = __UNCONST(InitVal->Val);
}
/*
* Entry requests an initial value, allocate a
* descriptor for it.
*/
ObjDesc = AcpiUtCreateInternalObject (InitVal->Type);
if (!ObjDesc)
{
Status = AE_NO_MEMORY;
goto UnlockAndExit;
}
/*
* Convert value string from table entry to
* internal representation. Only types actually
* used for initial values are implemented here.
*/
switch (InitVal->Type)
{
case ACPI_TYPE_METHOD:
ObjDesc->Method.ParamCount = (UINT8) ACPI_TO_INTEGER (Val);
ObjDesc->Common.Flags |= AOPOBJ_DATA_VALID;
#if defined (ACPI_ASL_COMPILER)
/* Save the parameter count for the iASL compiler */
NewNode->Value = ObjDesc->Method.ParamCount;
#else
/* Mark this as a very SPECIAL method */
ObjDesc->Method.InfoFlags = ACPI_METHOD_INTERNAL_ONLY;
ObjDesc->Method.Dispatch.Implementation = AcpiUtOsiImplementation;
#endif
break;
case ACPI_TYPE_INTEGER:
ObjDesc->Integer.Value = ACPI_TO_INTEGER (Val);
break;
case ACPI_TYPE_STRING:
/* Build an object around the static string */
ObjDesc->String.Length = (UINT32) ACPI_STRLEN (Val);
ObjDesc->String.Pointer = Val;
ObjDesc->Common.Flags |= AOPOBJ_STATIC_POINTER;
break;
case ACPI_TYPE_MUTEX:
ObjDesc->Mutex.Node = NewNode;
ObjDesc->Mutex.SyncLevel = (UINT8) (ACPI_TO_INTEGER (Val) - 1);
/* Create a mutex */
Status = AcpiOsCreateMutex (&ObjDesc->Mutex.OsMutex);
if (ACPI_FAILURE (Status))
{
AcpiUtRemoveReference (ObjDesc);
goto UnlockAndExit;
}
/* Special case for ACPI Global Lock */
if (ACPI_STRCMP (InitVal->Name, "_GL_") == 0)
{
AcpiGbl_GlobalLockMutex = ObjDesc;
/* Create additional counting semaphore for global lock */
Status = AcpiOsCreateSemaphore (
1, 0, &AcpiGbl_GlobalLockSemaphore);
if (ACPI_FAILURE (Status))
{
AcpiUtRemoveReference (ObjDesc);
goto UnlockAndExit;
}
}
break;
default:
ACPI_ERROR ((AE_INFO, "Unsupported initial type value 0x%X",
InitVal->Type));
AcpiUtRemoveReference (ObjDesc);
ObjDesc = NULL;
continue;
}
/* Store pointer to value descriptor in the Node */
Status = AcpiNsAttachObject (NewNode, ObjDesc,
ObjDesc->Common.Type);
/* Remove local reference to the object */
AcpiUtRemoveReference (ObjDesc);
}
}
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
/* Save a handle to "_GPE", it is always present */
if (ACPI_SUCCESS (Status))
{
Status = AcpiNsGetNode (NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH,
&AcpiGbl_FadtGpeDevice);
}
return_ACPI_STATUS (Status);
}
void
AcpiDbCreateExecutionThreads (
char *NumThreadsArg,
char *NumLoopsArg,
char *MethodNameArg)
{
ACPI_STATUS Status;
UINT32 NumThreads;
UINT32 NumLoops;
UINT32 i;
ACPI_MUTEX ThreadGate;
/* Get the arguments */
NumThreads = ACPI_STRTOUL (NumThreadsArg, NULL, 0);
NumLoops = ACPI_STRTOUL (NumLoopsArg, NULL, 0);
if (!NumThreads || !NumLoops)
{
AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n",
NumThreads, NumLoops);
return;
}
/* Create the synchronization semaphore */
Status = AcpiOsCreateSemaphore (1, 0, &ThreadGate);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not create semaphore, %s\n",
AcpiFormatException (Status));
return;
}
/* Setup the context to be passed to each thread */
AcpiGbl_DbMethodInfo.Name = MethodNameArg;
AcpiGbl_DbMethodInfo.Args = NULL;
AcpiGbl_DbMethodInfo.Flags = 0;
AcpiGbl_DbMethodInfo.NumLoops = NumLoops;
AcpiGbl_DbMethodInfo.ThreadGate = ThreadGate;
AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
/* Create the threads */
AcpiOsPrintf ("Creating %X threads to execute %X times each\n",
NumThreads, NumLoops);
for (i = 0; i < (NumThreads); i++)
{
Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbMethodThread,
&AcpiGbl_DbMethodInfo);
if (ACPI_FAILURE (Status))
{
break;
}
}
/* Wait for all threads to complete */
i = NumThreads;
while (i) /* Brain damage for host OSs that only support wait of 1 unit */
{
Status = AcpiOsWaitSemaphore (ThreadGate, 1, ACPI_WAIT_FOREVER);
i--;
}
/* Cleanup and exit */
(void) AcpiOsDeleteSemaphore (ThreadGate);
AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads);
AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
}
static ACPI_STATUS
AcpiUtCopySimpleObject (
ACPI_OPERAND_OBJECT *SourceDesc,
ACPI_OPERAND_OBJECT *DestDesc)
{
UINT16 ReferenceCount;
ACPI_OPERAND_OBJECT *NextObject;
ACPI_STATUS Status;
ACPI_SIZE CopySize;
/* Save fields from destination that we don't want to overwrite */
ReferenceCount = DestDesc->Common.ReferenceCount;
NextObject = DestDesc->Common.NextObject;
/*
* Copy the entire source object over the destination object.
* Note: Source can be either an operand object or namespace node.
*/
CopySize = sizeof (ACPI_OPERAND_OBJECT);
if (ACPI_GET_DESCRIPTOR_TYPE (SourceDesc) == ACPI_DESC_TYPE_NAMED)
{
CopySize = sizeof (ACPI_NAMESPACE_NODE);
}
ACPI_MEMCPY (ACPI_CAST_PTR (char, DestDesc),
ACPI_CAST_PTR (char, SourceDesc), CopySize);
/* Restore the saved fields */
DestDesc->Common.ReferenceCount = ReferenceCount;
DestDesc->Common.NextObject = NextObject;
/* New object is not static, regardless of source */
DestDesc->Common.Flags &= ~AOPOBJ_STATIC_POINTER;
/* Handle the objects with extra data */
switch (DestDesc->Common.Type)
{
case ACPI_TYPE_BUFFER:
/*
* Allocate and copy the actual buffer if and only if:
* 1) There is a valid buffer pointer
* 2) The buffer has a length > 0
*/
if ((SourceDesc->Buffer.Pointer) &&
(SourceDesc->Buffer.Length))
{
DestDesc->Buffer.Pointer =
ACPI_ALLOCATE (SourceDesc->Buffer.Length);
if (!DestDesc->Buffer.Pointer)
{
return (AE_NO_MEMORY);
}
/* Copy the actual buffer data */
ACPI_MEMCPY (DestDesc->Buffer.Pointer,
SourceDesc->Buffer.Pointer, SourceDesc->Buffer.Length);
}
break;
case ACPI_TYPE_STRING:
/*
* Allocate and copy the actual string if and only if:
* 1) There is a valid string pointer
* (Pointer to a NULL string is allowed)
*/
if (SourceDesc->String.Pointer)
{
DestDesc->String.Pointer =
ACPI_ALLOCATE ((ACPI_SIZE) SourceDesc->String.Length + 1);
if (!DestDesc->String.Pointer)
{
return (AE_NO_MEMORY);
}
/* Copy the actual string data */
ACPI_MEMCPY (DestDesc->String.Pointer, SourceDesc->String.Pointer,
(ACPI_SIZE) SourceDesc->String.Length + 1);
}
break;
case ACPI_TYPE_LOCAL_REFERENCE:
/*
* We copied the reference object, so we now must add a reference
* to the object pointed to by the reference
*
* DDBHandle reference (from Load/LoadTable) is a special reference,
* it does not have a Reference.Object, so does not need to
* increase the reference count
*/
if (SourceDesc->Reference.Class == ACPI_REFCLASS_TABLE)
{
break;
}
AcpiUtAddReference (SourceDesc->Reference.Object);
break;
case ACPI_TYPE_REGION:
/*
* We copied the Region Handler, so we now must add a reference
*/
if (DestDesc->Region.Handler)
{
AcpiUtAddReference (DestDesc->Region.Handler);
}
break;
/*
* For Mutex and Event objects, we cannot simply copy the underlying
* OS object. We must create a new one.
*/
case ACPI_TYPE_MUTEX:
Status = AcpiOsCreateMutex (&DestDesc->Mutex.OsMutex);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
case ACPI_TYPE_EVENT:
Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0,
&DestDesc->Event.OsSemaphore);
if (ACPI_FAILURE (Status))
{
return (Status);
}
break;
default:
/* Nothing to do for other simple objects */
break;
}
return (AE_OK);
}