/*
- * Copyright (c) 1998-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 1998-2014 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <IOKit/IOWorkLoop.h>
#include <IOKit/IOTimeStamp.h>
#include <IOKit/IOHibernatePrivate.h>
+#include <IOKit/IOInterruptAccountingPrivate.h>
+#include <IOKit/IOKernelReporters.h>
+#include <IOKit/AppleKeyStoreInterface.h>
+#include <IOKit/IOCPU.h>
#include <mach/sync_policy.h>
#include <IOKit/assert.h>
#include <sys/errno.h>
+#include <sys/kdebug.h>
+#include <string.h>
#include <machine/pal_routines.h>
const OSSymbol * gIOPriorityPowerStateInterest;
const OSSymbol * gIOConsoleSecurityInterest;
+const OSSymbol * gAKSGetKey;
+#if defined(__i386__) || defined(__x86_64__)
+const OSSymbol * gIOCreateEFIDevicePathSymbol;
+#endif
+
static OSDictionary * gNotifications;
static IORecursiveLock * gNotificationLock;
static int gNumConfigThreads;
static int gNumWaitingThreads;
static IOLock * gIOServiceBusyLock;
+static bool gCPUsRunning;
static thread_t gIOTerminateThread;
static UInt32 gIOTerminateWork;
extern const OSSymbol * gIODTPHandleKey;
-const OSSymbol * gIOPlatformSleepActionKey;
-const OSSymbol * gIOPlatformWakeActionKey;
-const OSSymbol * gIOPlatformQuiesceActionKey;
-const OSSymbol * gIOPlatformActiveActionKey;
-
const OSSymbol * gIOPlatformFunctionHandlerSet;
static IOLock * gIOConsoleUsersLock;
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+struct IOInterruptAccountingReporter {
+ IOSimpleReporter * reporter; /* Reporter responsible for communicating the statistics */
+ IOInterruptAccountingData * statistics; /* The live statistics values, if any */
+};
+
struct ArbitrationLockQueueElement {
queue_chain_t link;
IOThread thread;
static IORecursiveLock *sCpuDelayLock = IORecursiveLockAlloc();
static OSArray *sCpuLatencyHandlers[kCpuNumDelayTypes];
const OSSymbol *sCPULatencyFunctionName[kCpuNumDelayTypes];
+static OSNumber * sCPULatencyHolder[kCpuNumDelayTypes];
+static char sCPULatencyHolderName[kCpuNumDelayTypes][128];
+static OSNumber * sCPULatencySet[kCpuNumDelayTypes];
static void
requireMaxCpuDelay(IOService * service, UInt32 ns, UInt32 delayType);
gIOConsoleSessionScreenLockedTimeKey = OSSymbol::withCStringNoCopy(kIOConsoleSessionScreenLockedTimeKey);
gIOConsoleUsersSeedValue = OSData::withBytesNoCopy(&gIOConsoleUsersSeed, sizeof(gIOConsoleUsersSeed));
-
- gIOPlatformSleepActionKey = OSSymbol::withCStringNoCopy(kIOPlatformSleepActionKey);
- gIOPlatformWakeActionKey = OSSymbol::withCStringNoCopy(kIOPlatformWakeActionKey);
- gIOPlatformQuiesceActionKey = OSSymbol::withCStringNoCopy(kIOPlatformQuiesceActionKey);
- gIOPlatformActiveActionKey = OSSymbol::withCStringNoCopy(kIOPlatformActiveActionKey);
gIOPlatformFunctionHandlerSet = OSSymbol::withCStringNoCopy(kIOPlatformFunctionHandlerSet);
#if defined(__i386__) || defined(__x86_64__)
sCPULatencyFunctionName[kCpuDelayBusStall] = OSSymbol::withCStringNoCopy(kIOPlatformFunctionHandlerMaxBusDelay);
sCPULatencyFunctionName[kCpuDelayInterrupt] = OSSymbol::withCStringNoCopy(kIOPlatformFunctionHandlerMaxInterruptDelay);
+ uint32_t idx;
+ for (idx = 0; idx < kCpuNumDelayTypes; idx++)
+ {
+ sCPULatencySet[idx] = OSNumber::withNumber(-1U, 32);
+ sCPULatencyHolder[idx] = OSNumber::withNumber(0ULL, 64);
+ assert(sCPULatencySet[idx] && sCPULatencyHolder[idx]);
+ }
+ gIOCreateEFIDevicePathSymbol = OSSymbol::withCString("CreateEFIDevicePath");
#endif
gNotificationLock = IORecursiveLockAlloc();
+ gAKSGetKey = OSSymbol::withCStringNoCopy(AKS_PLATFORM_FUNCTION_GETKEY);
+
assert( gIOServicePlane && gIODeviceMemoryKey
&& gIOInterruptControllersKey && gIOInterruptSpecifiersKey
&& gIOResourcesKey && gNotifications && gNotificationLock
gIOStopProviderList = OSArray::withCapacity( 16 );
gIOFinalizeList = OSArray::withCapacity( 16 );
assert( gIOTerminatePhase2List && gIOStopList && gIOStopProviderList && gIOFinalizeList );
+
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+#if defined(__i386__) || defined(__x86_64__)
+extern "C" {
+
+const char *getCpuDelayBusStallHolderName(void) {
+ return sCPULatencyHolderName[kCpuDelayBusStall];
+}
+
+}
+#endif
+
#if IOMATCHDEBUG
static UInt64 getDebugFlags( OSDictionary * props )
{
{
}
+bool IOService::init( OSDictionary * dictionary )
+{
+ bool ret;
+
+ ret = super::init(dictionary);
+ if (!ret) return (false);
+ if (reserved) return (true);
+
+ reserved = IONew(ExpansionData, 1);
+ if (!reserved) return (false);
+ bzero(reserved, sizeof(*reserved));
+
+ /*
+ * TODO: Improve on this. Previous efforts to more lazily allocate this
+ * lock based on the presence of specifiers ran into issues as some
+ * platforms set up the specifiers after IOService initialization.
+ *
+ * We may be able to get away with a global lock, as this should only be
+ * contended by IOReporting clients and driver start/stop (unless a
+ * driver wants to remove/add handlers in the course of normal operation,
+ * which should be unlikely).
+ */
+ reserved->interruptStatisticsLock = IOLockAlloc();
+ if (!reserved->interruptStatisticsLock) return (false);
+
+ return (true);
+}
+
+bool IOService::init( IORegistryEntry * from,
+ const IORegistryPlane * inPlane )
+{
+ bool ret;
+
+ ret = super::init(from, inPlane);
+ if (!ret) return (false);
+ if (reserved) return (true);
+
+ reserved = IONew(ExpansionData, 1);
+ if (!reserved) return (false);
+ bzero(reserved, sizeof(*reserved));
+
+ /*
+ * TODO: Improve on this. Previous efforts to more lazily allocate this
+ * lock based on the presence of specifiers ran into issues as some
+ * platforms set up the specifiers after IOService initialization.
+ *
+ * We may be able to get away with a global lock, as this should only be
+ * contended by IOReporting clients and driver start/stop (unless a
+ * driver wants to remove/add handlers in the course of normal operation,
+ * which should be unlikely).
+ */
+ reserved->interruptStatisticsLock = IOLockAlloc();
+ if (!reserved->interruptStatisticsLock) return (false);
+
+ return (true);
+}
+
void IOService::free( void )
{
+ int i = 0;
requireMaxBusStall(0);
requireMaxInterruptDelay(0);
if( getPropertyTable())
unregisterAllInterest();
PMfree();
+
+ if (reserved) {
+ if (reserved->interruptStatisticsArray) {
+ for (i = 0; i < reserved->interruptStatisticsArrayCount; i++) {
+ if (reserved->interruptStatisticsArray[i].reporter)
+ reserved->interruptStatisticsArray[i].reporter->release();
+ }
+
+ IODelete(reserved->interruptStatisticsArray, IOInterruptAccountingReporter, reserved->interruptStatisticsArrayCount);
+ }
+
+ if (reserved->interruptStatisticsLock)
+ IOLockFree(reserved->interruptStatisticsLock);
+ IODelete(reserved, ExpansionData, 1);
+ }
+
+ if (_numInterruptSources && _interruptSources)
+ {
+ IOFree(_interruptSources, _numInterruptSources * sizeof(IOInterruptSource));
+ _interruptSources = 0;
+ }
+
super::free();
}
lockForArbitration();
+ uint64_t regID1 = provider->getRegistryEntryID();
+ uint64_t regID2 = getRegistryEntryID();
+ IOServiceTrace(
+ IOSERVICE_DETACH,
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32),
+ (uintptr_t) regID2,
+ (uintptr_t) (regID2 >> 32));
+
adjParent = ((busy = (__state[1] & kIOServiceBusyStateMask))
&& (provider == getProvider()));
if (kIOServiceInactiveState & __state[0]) {
getMetaClass()->removeInstance(this);
+ IORemoveServicePlatformActions(this);
}
unlockForArbitration();
}
// check for last client detach from a terminated service
- if( provider->lockForArbitration( true )) {
- if( adjParent)
- provider->_adjustBusy( -1 );
+ if( provider->lockForArbitration( true ))
+ {
+ if (kIOServiceStartState & __state[1])
+ {
+ provider->scheduleTerminatePhase2();
+ }
+ if( adjParent) provider->_adjustBusy( -1 );
if( (provider->__state[1] & kIOServiceTermPhase3State)
&& (0 == provider->getClient())) {
- provider->scheduleFinalize();
+ provider->scheduleFinalize(false);
}
provider->unlockForArbitration();
}
if( gIOPlatform && (!gIOPlatform->platformAdjustService(this)))
return;
+ IOInstallServicePlatformActions(this);
+
if( (this != gIOResources)
&& (kIOLogRegister & gIOKitDebug)) {
{
gIOPlatform = platform;
gIOResources->attachToParent( gIOServiceRoot, gIOServicePlane );
+
+#if defined(__i386__) || defined(__x86_64__)
+
+ static const char * keys[kCpuNumDelayTypes] = {
+ kIOPlatformMaxBusDelay, kIOPlatformMaxInterruptDelay };
+ const OSObject * objs[2];
+ OSArray * array;
+ uint32_t idx;
+
+ for (idx = 0; idx < kCpuNumDelayTypes; idx++)
+ {
+ objs[0] = sCPULatencySet[idx];
+ objs[1] = sCPULatencyHolder[idx];
+ array = OSArray::withObjects(objs, 2);
+ if (!array) break;
+ platform->setProperty(keys[idx], array);
+ array->release();
+ }
+#endif /* defined(__i386__) || defined(__x86_64__) */
}
void IOService::setPMRootDomain( class IOPMrootDomain * rootDomain)
IOServiceInterestHandler handler, void * target, void * ref )
{
_IOServiceInterestNotifier * notify = 0;
+ IOReturn rc = kIOReturnError;
+
+ notify = new _IOServiceInterestNotifier;
+ if (!notify) return NULL;
+
+ if(notify->init()) {
+ rc = registerInterestForNotifer(notify, typeOfInterest,
+ handler, target, ref);
+ }
+
+ if (rc != kIOReturnSuccess) {
+ notify->release();
+ notify = 0;
+ }
+
+ return( notify );
+}
+
+IOReturn IOService::registerInterestForNotifer( IONotifier *svcNotify, const OSSymbol * typeOfInterest,
+ IOServiceInterestHandler handler, void * target, void * ref )
+{
+ IOReturn rc = kIOReturnSuccess;
+ _IOServiceInterestNotifier *notify = 0;
if( (typeOfInterest != gIOGeneralInterest)
&& (typeOfInterest != gIOBusyInterest)
&& (typeOfInterest != gIOAppPowerStateInterest)
&& (typeOfInterest != gIOConsoleSecurityInterest)
&& (typeOfInterest != gIOPriorityPowerStateInterest))
- return( 0 );
+ return( kIOReturnBadArgument );
+
+ if (!svcNotify || !(notify = OSDynamicCast(_IOServiceInterestNotifier, svcNotify)))
+ return( kIOReturnBadArgument );
lockForArbitration();
if( 0 == (__state[0] & kIOServiceInactiveState)) {
- notify = new _IOServiceInterestNotifier;
- if( notify && !notify->init()) {
- notify->release();
- notify = 0;
- }
-
- if( notify) {
- notify->handler = handler;
- notify->target = target;
- notify->ref = ref;
- notify->state = kIOServiceNotifyEnable;
- queue_init( ¬ify->handlerInvocations );
-
- ////// queue
+ notify->handler = handler;
+ notify->target = target;
+ notify->ref = ref;
+ notify->state = kIOServiceNotifyEnable;
- LOCKWRITENOTIFY();
+ ////// queue
- // Get the head of the notifier linked list
- IOCommand *notifyList = (IOCommand *) getProperty( typeOfInterest );
- if (!notifyList || !OSDynamicCast(IOCommand, notifyList)) {
- notifyList = OSTypeAlloc(IOCommand);
- if (notifyList) {
- notifyList->init();
- setProperty( typeOfInterest, notifyList);
- notifyList->release();
- }
- }
+ LOCKWRITENOTIFY();
- if (notifyList) {
- enqueue(¬ifyList->fCommandChain, ¬ify->chain);
- notify->retain(); // ref'ed while in list
- }
+ // Get the head of the notifier linked list
+ IOCommand * notifyList;
+ OSObject * obj = copyProperty( typeOfInterest );
+ if (!(notifyList = OSDynamicCast(IOCommand, obj))) {
+ notifyList = OSTypeAlloc(IOCommand);
+ if (notifyList) {
+ notifyList->init();
+ bool ok = setProperty( typeOfInterest, notifyList);
+ notifyList->release();
+ if (!ok) notifyList = 0;
+ }
+ }
+ if (obj) obj->release();
- UNLOCKNOTIFY();
+ if (notifyList) {
+ enqueue(¬ifyList->fCommandChain, ¬ify->chain);
+ notify->retain(); // ref'ed while in list
}
+
+ UNLOCKNOTIFY();
+ }
+ else {
+ rc = kIOReturnNotReady;
}
unlockForArbitration();
- return( notify );
+ return rc;
}
static void cleanInterestList( OSObject * head )
UNLOCKNOTIFY();
}
+bool _IOServiceInterestNotifier::init()
+{
+ queue_init( &handlerInvocations );
+ return (OSObject::init());
+}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
// -- compat
if( ok) {
provider->terminateClient( this, options | kIOServiceRecursing );
- ok = (0 != (__state[1] & kIOServiceRecursing));
+ ok = (0 != (kIOServiceInactiveState & __state[0]));
}
// --
IOService * client;
OSIterator * iter;
OSArray * makeInactive;
- int waitResult = THREAD_AWAKENED;
- bool wait;
+ OSArray * waitingInactive;
+ int waitResult = THREAD_AWAKENED;
+ bool wait;
bool ok;
bool didInactive;
bool startPhase2 = false;
- TLOG("%s::terminatePhase1(%08llx)\n", getName(), (long long)options);
+ TLOG("%s[0x%qx]::terminatePhase1(%08llx)\n", getName(), getRegistryEntryID(), (long long)options);
uint64_t regID = getRegistryEntryID();
IOServiceTrace(
// -- compat
if( options & kIOServiceRecursing) {
lockForArbitration();
- __state[1] |= kIOServiceRecursing;
+ if (0 == (kIOServiceInactiveState & __state[0]))
+ {
+ __state[0] |= kIOServiceInactiveState;
+ __state[1] |= kIOServiceRecursing | kIOServiceTermPhase1State;
+ }
unlockForArbitration();
+
return( true );
}
// --
- makeInactive = OSArray::withCapacity( 16 );
- if( !makeInactive)
- return( false );
+ makeInactive = OSArray::withCapacity( 16 );
+ waitingInactive = OSArray::withCapacity( 16 );
+ if(!makeInactive || !waitingInactive) return( false );
victim = this;
victim->retain();
- while( victim ) {
-
- didInactive = victim->lockForArbitration( true );
- if( didInactive) {
- didInactive = (0 == (victim->__state[0] & kIOServiceInactiveState));
- if( didInactive) {
- victim->__state[0] |= kIOServiceInactiveState;
- victim->__state[0] &= ~(kIOServiceRegisteredState | kIOServiceMatchedState
- | kIOServiceFirstPublishState | kIOServiceFirstMatchState);
-
- if (victim == this)
- victim->__state[1] |= kIOServiceTermPhase1State;
-
- victim->_adjustBusy( 1 );
-
- } else if (victim != this) do {
+ while( victim )
+ {
+ didInactive = victim->lockForArbitration( true );
+ if( didInactive)
+ {
+ uint64_t regID1 = victim->getRegistryEntryID();
+ IOServiceTrace(IOSERVICE_TERM_SET_INACTIVE,
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32),
+ (uintptr_t) victim->__state[1],
+ (uintptr_t) 0);
- IOLockLock(gIOServiceBusyLock);
- wait = (victim->__state[1] & kIOServiceTermPhase1State);
- if( wait) {
- TLOG("%s::waitPhase1(%s)\n", getName(), victim->getName());
- victim->__state[1] |= kIOServiceTerm1WaiterState;
- victim->unlockForArbitration();
- assert_wait((event_t)&victim->__state[1], THREAD_UNINT);
- }
- IOLockUnlock(gIOServiceBusyLock);
- if( wait) {
- waitResult = thread_block(THREAD_CONTINUE_NULL);
- TLOG("%s::did waitPhase1(%s)\n", getName(), victim->getName());
- victim->lockForArbitration();
- }
- } while( wait && (waitResult != THREAD_TIMED_OUT));
+ enum { kRP1 = kIOServiceRecursing | kIOServiceTermPhase1State };
+ didInactive = (kRP1 == (victim->__state[1] & kRP1))
+ || (0 == (victim->__state[0] & kIOServiceInactiveState));
+ if (!didInactive)
+ {
+ // a multiply attached IOService can be visited twice
+ if (-1U == waitingInactive->getNextIndexOfObject(victim, 0)) do
+ {
+ IOLockLock(gIOServiceBusyLock);
+ wait = (victim->__state[1] & kIOServiceTermPhase1State);
+ if( wait) {
+ TLOG("%s[0x%qx]::waitPhase1(%s[0x%qx])\n",
+ getName(), getRegistryEntryID(), victim->getName(), victim->getRegistryEntryID());
+ victim->__state[1] |= kIOServiceTerm1WaiterState;
victim->unlockForArbitration();
+ assert_wait((event_t)&victim->__state[1], THREAD_UNINT);
+ }
+ IOLockUnlock(gIOServiceBusyLock);
+ if( wait) {
+ waitResult = thread_block(THREAD_CONTINUE_NULL);
+ TLOG("%s[0x%qx]::did waitPhase1(%s[0x%qx])\n",
+ getName(), getRegistryEntryID(), victim->getName(), victim->getRegistryEntryID());
+ victim->lockForArbitration();
+ }
+ }
+ while (wait && (waitResult != THREAD_TIMED_OUT));
+ }
+ else
+ {
+ victim->__state[0] |= kIOServiceInactiveState;
+ victim->__state[0] &= ~(kIOServiceRegisteredState | kIOServiceMatchedState
+ | kIOServiceFirstPublishState | kIOServiceFirstMatchState);
+ victim->__state[1] &= ~kIOServiceRecursing;
+ victim->__state[1] |= kIOServiceTermPhase1State;
+ waitingInactive->headQ(victim);
+ if (victim == this)
+ {
+ if (kIOServiceTerminateNeedWillTerminate & options)
+ {
+ victim->__state[1] |= kIOServiceNeedWillTerminate;
+ }
+ }
+ victim->_adjustBusy( 1 );
+ }
+ victim->unlockForArbitration();
}
- if( victim == this)
- startPhase2 = didInactive;
- if( didInactive) {
-
+ if( victim == this) startPhase2 = didInactive;
+ if (didInactive)
+ {
victim->deliverNotification( gIOTerminatedNotification, 0, 0xffffffff );
IOUserClient::destroyUserReferences( victim );
iter = victim->getClientIterator();
if( iter) {
while( (client = (IOService *) iter->getNextObject())) {
- TLOG("%s::requestTerminate(%s, %08llx)\n",
- client->getName(), victim->getName(), (long long)options);
+ TLOG("%s[0x%qx]::requestTerminate(%s[0x%qx], %08llx)\n",
+ client->getName(), client->getRegistryEntryID(),
+ victim->getName(), victim->getRegistryEntryID(), (long long)options);
ok = client->requestTerminate( victim, options );
- TLOG("%s::requestTerminate(%s, ok = %d)\n",
- client->getName(), victim->getName(), ok);
+ TLOG("%s[0x%qx]::requestTerminate(%s[0x%qx], ok = %d)\n",
+ client->getName(), client->getRegistryEntryID(),
+ victim->getName(), victim->getRegistryEntryID(), ok);
uint64_t regID1 = client->getRegistryEntryID();
uint64_t regID2 = victim->getRegistryEntryID();
makeInactive->removeObject(0);
}
}
-
makeInactive->release();
- if( startPhase2)
+ while ((victim = (IOService *) waitingInactive->getObject(0)))
{
- lockForArbitration();
- __state[1] &= ~kIOServiceTermPhase1State;
- if (kIOServiceTerm1WaiterState & __state[1])
- {
- __state[1] &= ~kIOServiceTerm1WaiterState;
- TLOG("%s::wakePhase1\n", getName());
- IOLockLock( gIOServiceBusyLock );
- thread_wakeup( (event_t) &__state[1]);
- IOLockUnlock( gIOServiceBusyLock );
- }
- unlockForArbitration();
+ victim->retain();
+ waitingInactive->removeObject(0);
+
+ victim->lockForArbitration();
+ victim->__state[1] &= ~kIOServiceTermPhase1State;
+ if (kIOServiceTerm1WaiterState & victim->__state[1])
+ {
+ victim->__state[1] &= ~kIOServiceTerm1WaiterState;
+ TLOG("%s[0x%qx]::wakePhase1\n", victim->getName(), victim->getRegistryEntryID());
+ IOLockLock( gIOServiceBusyLock );
+ thread_wakeup( (event_t) &victim->__state[1]);
+ IOLockUnlock( gIOServiceBusyLock );
+ }
+ victim->unlockForArbitration();
+ victim->release();
+ }
+ waitingInactive->release();
- scheduleTerminatePhase2( options );
+ if( startPhase2)
+ {
+ retain();
+ lockForArbitration();
+ scheduleTerminatePhase2(options);
+ unlockForArbitration();
+ release();
}
+
return( true );
}
if (provider && !defer)
{
provider->lockForArbitration();
- if (provider->__state[0] & kIOServiceInactiveState)
- {
- provider->scheduleTerminatePhase2();
- }
+ provider->scheduleTerminatePhase2();
provider->unlockForArbitration();
}
}
+// call with lockForArbitration
void IOService::scheduleTerminatePhase2( IOOptionBits options )
{
AbsoluteTime deadline;
+ uint64_t regID1;
int waitResult = THREAD_AWAKENED;
bool wait, haveDeadline = false;
- options |= kIOServiceRequired;
+ if (!(__state[0] & kIOServiceInactiveState)) return;
- retain();
+ regID1 = getRegistryEntryID();
+ IOServiceTrace(
+ IOSERVICE_TERM_SCHED_PHASE2,
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32),
+ (uintptr_t) __state[1],
+ (uintptr_t) options);
+ if (__state[1] & kIOServiceTermPhase1State) return;
+
+ retain();
+ unlockForArbitration();
+ options |= kIOServiceRequired;
IOLockLock( gJobsLock );
if( (options & kIOServiceSynchronous)
waitResult = IOLockSleepDeadline( gJobsLock, &gIOTerminateWork,
deadline, THREAD_UNINT );
if( waitResult == THREAD_TIMED_OUT) {
- IOLog("%s::terminate(kIOServiceSynchronous) timeout\n", getName());
+ IOLog("%s[0x%qx]::terminate(kIOServiceSynchronous) timeout\n", getName(), getRegistryEntryID());
}
}
} while(gIOTerminateWork || (wait && (waitResult != THREAD_TIMED_OUT)));
}
IOLockUnlock( gJobsLock );
-
+ lockForArbitration();
release();
}
void IOService::scheduleStop( IOService * provider )
{
- TLOG("%s::scheduleStop(%s)\n", getName(), provider->getName());
-
uint64_t regID1 = getRegistryEntryID();
uint64_t regID2 = provider->getRegistryEntryID();
+
+ TLOG("%s[0x%qx]::scheduleStop(%s[0x%qx])\n", getName(), regID1, provider->getName(), regID2);
IOServiceTrace(
IOSERVICE_TERMINATE_SCHEDULE_STOP,
(uintptr_t) regID1,
IOLockUnlock( gJobsLock );
}
-void IOService::scheduleFinalize( void )
+void IOService::scheduleFinalize(bool now)
{
- TLOG("%s::scheduleFinalize\n", getName());
-
uint64_t regID1 = getRegistryEntryID();
+
+ TLOG("%s[0x%qx]::scheduleFinalize\n", getName(), regID1);
IOServiceTrace(
IOSERVICE_TERMINATE_SCHEDULE_FINALIZE,
(uintptr_t) regID1,
(uintptr_t) (regID1 >> 32),
0, 0);
- IOLockLock( gJobsLock );
- gIOFinalizeList->tailQ( this );
-
- if( 0 == gIOTerminateWork++) {
- if( !gIOTerminateThread)
- kernel_thread_start(&terminateThread, (void *) 0, &gIOTerminateThread);
- else
- IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
+ if (now || IOUserClient::finalizeUserReferences(this))
+ {
+ IOLockLock( gJobsLock );
+ gIOFinalizeList->tailQ(this);
+ if( 0 == gIOTerminateWork++)
+ {
+ if( !gIOTerminateThread)
+ kernel_thread_start(&terminateThread, (void *) 0, &gIOTerminateThread);
+ else
+ IOLockWakeup(gJobsLock, (event_t) &gIOTerminateWork, /* one-thread */ false );
+ }
+ IOLockUnlock( gJobsLock );
}
-
- IOLockUnlock( gJobsLock );
}
bool IOService::willTerminate( IOService * provider, IOOptionBits options )
OSIterator * iter;
IOService * client;
bool ok;
+ uint64_t regID1, regID2 = victim->getRegistryEntryID();
iter = victim->getClientIterator();
if( iter) {
while( (client = (IOService *) iter->getNextObject())) {
- TLOG("%s::willTerminate(%s, %08llx)\n",
- client->getName(), victim->getName(), (long long)options);
- uint64_t regID1 = client->getRegistryEntryID();
- uint64_t regID2 = victim->getRegistryEntryID();
+ regID1 = client->getRegistryEntryID();
+ TLOG("%s[0x%qx]::willTerminate(%s[0x%qx], %08llx)\n",
+ client->getName(), regID1,
+ victim->getName(), regID2, (long long)options);
IOServiceTrace(
IOSERVICE_TERMINATE_WILL,
(uintptr_t) regID1,
{
OSIterator * iter;
IOService * client;
- bool defer = false;
+ bool defer;
+ uint64_t regID1, regID2 = victim->getRegistryEntryID();
victim->messageClients( kIOMessageServiceIsTerminated, (void *)(uintptr_t) options );
iter = victim->getClientIterator();
if( iter) {
while( (client = (IOService *) iter->getNextObject())) {
- TLOG("%s::didTerminate(%s, %08llx)\n",
- client->getName(), victim->getName(), (long long)options);
+
+ regID1 = client->getRegistryEntryID();
+ TLOG("%s[0x%qx]::didTerminate(%s[0x%qx], %08llx)\n",
+ client->getName(), regID1,
+ victim->getName(), regID2, (long long)options);
+ defer = false;
client->didTerminate( victim, options, &defer );
- uint64_t regID1 = client->getRegistryEntryID();
- uint64_t regID2 = victim->getRegistryEntryID();
IOServiceTrace(
(defer ? IOSERVICE_TERMINATE_DID_DEFER
: IOSERVICE_TERMINATE_DID),
(uintptr_t) regID2,
(uintptr_t) (regID2 >> 32));
- TLOG("%s::didTerminate(%s, defer %d)\n",
- client->getName(), victim->getName(), defer);
+ TLOG("%s[0x%qx]::didTerminate(%s[0x%qx], defer %d)\n",
+ client->getName(), regID1,
+ victim->getName(), regID2, defer);
}
iter->release();
}
}
-void IOService::actionFinalize( IOService * victim, IOOptionBits options,
+
+void IOService::actionWillStop( IOService * victim, IOOptionBits options,
void *unused1 __unused, void *unused2 __unused,
void *unused3 __unused )
{
- TLOG("%s::finalize(%08llx)\n", victim->getName(), (long long)options);
+ OSIterator * iter;
+ IOService * provider;
+ bool ok;
+ uint64_t regID1, regID2 = victim->getRegistryEntryID();
+
+ iter = victim->getProviderIterator();
+ if( iter) {
+ while( (provider = (IOService *) iter->getNextObject())) {
+ regID1 = provider->getRegistryEntryID();
+ TLOG("%s[0x%qx]::willTerminate(%s[0x%qx], %08llx)\n",
+ victim->getName(), regID2,
+ provider->getName(), regID1, (long long)options);
+ IOServiceTrace(
+ IOSERVICE_TERMINATE_WILL,
+ (uintptr_t) regID2,
+ (uintptr_t) (regID2 >> 32),
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32));
+
+ ok = victim->willTerminate( provider, options );
+ }
+ iter->release();
+ }
+}
+
+void IOService::actionDidStop( IOService * victim, IOOptionBits options,
+ void *unused1 __unused, void *unused2 __unused,
+ void *unused3 __unused )
+{
+ OSIterator * iter;
+ IOService * provider;
+ bool defer = false;
+ uint64_t regID1, regID2 = victim->getRegistryEntryID();
+
+ iter = victim->getProviderIterator();
+ if( iter) {
+ while( (provider = (IOService *) iter->getNextObject())) {
+
+ regID1 = provider->getRegistryEntryID();
+ TLOG("%s[0x%qx]::didTerminate(%s[0x%qx], %08llx)\n",
+ victim->getName(), regID2,
+ provider->getName(), regID1, (long long)options);
+ victim->didTerminate( provider, options, &defer );
+
+ IOServiceTrace(
+ (defer ? IOSERVICE_TERMINATE_DID_DEFER
+ : IOSERVICE_TERMINATE_DID),
+ (uintptr_t) regID2,
+ (uintptr_t) (regID2 >> 32),
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32));
+
+ TLOG("%s[0x%qx]::didTerminate(%s[0x%qx], defer %d)\n",
+ victim->getName(), regID2,
+ provider->getName(), regID1, defer);
+ }
+ iter->release();
+ }
+}
+
+
+void IOService::actionFinalize( IOService * victim, IOOptionBits options,
+ void *unused1 __unused, void *unused2 __unused,
+ void *unused3 __unused )
+{
uint64_t regID1 = victim->getRegistryEntryID();
+ TLOG("%s[0x%qx]::finalize(%08llx)\n", victim->getName(), regID1, (long long)options);
IOServiceTrace(
IOSERVICE_TERMINATE_FINALIZE,
(uintptr_t) regID1,
void *unused1 __unused, void *unused2 __unused,
void *unused3 __unused )
{
- TLOG("%s::stop(%s)\n", client->getName(), provider->getName());
-
uint64_t regID1 = provider->getRegistryEntryID();
uint64_t regID2 = client->getRegistryEntryID();
+
+ TLOG("%s[0x%qx]::stop(%s[0x%qx])\n", client->getName(), regID2, provider->getName(), regID1);
IOServiceTrace(
IOSERVICE_TERMINATE_STOP,
(uintptr_t) regID1,
client->stop( provider );
if( provider->isOpen( client ))
provider->close( client );
- TLOG("%s::detach(%s)\n", client->getName(), provider->getName());
+
+ TLOG("%s[0x%qx]::detach(%s[0x%qx])\n", client->getName(), regID2, provider->getName(), regID1);
client->detach( provider );
}
gIOTerminatePhase2List->removeObject(0);
IOLockUnlock( gJobsLock );
+ uint64_t regID1 = victim->getRegistryEntryID();
+ IOServiceTrace(
+ IOSERVICE_TERM_START_PHASE2,
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32),
+ (uintptr_t) 0,
+ (uintptr_t) 0);
+
while( victim ) {
doPhase2 = victim->lockForArbitration( true );
if( doPhase2) {
doPhase2 = (0 != (kIOServiceInactiveState & victim->__state[0]));
if( doPhase2) {
+
+ uint64_t regID1 = victim->getRegistryEntryID();
+ IOServiceTrace(
+ IOSERVICE_TERM_TRY_PHASE2,
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32),
+ (uintptr_t) victim->__state[1],
+ (uintptr_t) 0);
+
doPhase2 = (0 == (victim->__state[1] & kIOServiceTermPhase2State))
&& (0 == (victim->__state[1] & kIOServiceConfigState));
if (doPhase2 && (iter = victim->getClientIterator())) {
while (doPhase2 && (client = (IOService *) iter->getNextObject())) {
doPhase2 = (0 == (client->__state[1] & kIOServiceStartState));
+ if (!doPhase2)
+ {
+ uint64_t regID1 = client->getRegistryEntryID();
+ IOServiceTrace(
+ IOSERVICE_TERM_UC_DEFER,
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32),
+ (uintptr_t) client->__state[1],
+ (uintptr_t) 0);
+ TLOG("%s[0x%qx]::defer phase2(%s[0x%qx])\n",
+ victim->getName(), victim->getRegistryEntryID(),
+ client->getName(), client->getRegistryEntryID());
+ }
}
iter->release();
}
victim->unlockForArbitration();
}
if( doPhase2) {
+
+ if (kIOServiceNeedWillTerminate & victim->__state[1]) {
+ _workLoopAction( (IOWorkLoop::Action) &actionWillStop,
+ victim, (void *)(uintptr_t) options, NULL );
+ }
+
if( 0 == victim->getClient()) {
+
// no clients - will go to finalize
- IOLockLock( gJobsLock );
- gIOFinalizeList->tailQ( victim );
- IOLockUnlock( gJobsLock );
+ victim->scheduleFinalize(false);
+
} else {
_workLoopAction( (IOWorkLoop::Action) &actionWillTerminate,
victim, (void *)(uintptr_t) options, (void *)(uintptr_t) doPhase2List );
}
_workLoopAction( (IOWorkLoop::Action) &actionDidTerminate,
victim, (void *)(uintptr_t) options );
+ if (kIOServiceNeedWillTerminate & victim->__state[1]) {
+ _workLoopAction( (IOWorkLoop::Action) &actionDidStop,
+ victim, (void *)(uintptr_t) options, NULL );
+ }
didPhase2List->removeObject(0);
}
IOLockLock( gJobsLock );
provider = (IOService *) gIOStopProviderList->getObject(idx);
assert( provider );
+
+ uint64_t regID1 = provider->getRegistryEntryID();
+ uint64_t regID2 = client->getRegistryEntryID();
if( !provider->isChild( client, gIOServicePlane )) {
// may be multiply queued - nop it
- TLOG("%s::nop stop(%s)\n", client->getName(), provider->getName());
-
- uint64_t regID1 = provider->getRegistryEntryID();
- uint64_t regID2 = client->getRegistryEntryID();
+ TLOG("%s[0x%qx]::nop stop(%s[0x%qx])\n", client->getName(), regID2, provider->getName(), regID1);
IOServiceTrace(
IOSERVICE_TERMINATE_STOP_NOP,
(uintptr_t) regID1,
} else {
// a terminated client is not ready for stop if it has clients, skip it
if( (kIOServiceInactiveState & client->__state[0]) && client->getClient()) {
- TLOG("%s::defer stop(%s)\n", client->getName(), provider->getName());
-
- uint64_t regID1 = provider->getRegistryEntryID();
- uint64_t regID2 = client->getRegistryEntryID();
+ TLOG("%s[0x%qx]::defer stop(%s[0x%qx])\n",
+ client->getName(), regID2,
+ client->getClient()->getName(), client->getClient()->getRegistryEntryID());
IOServiceTrace(
IOSERVICE_TERMINATE_STOP_DEFER,
(uintptr_t) regID1,
bool IOService::finalize( IOOptionBits options )
{
- OSIterator * iter;
- IOService * provider;
+ OSIterator * iter;
+ IOService * provider;
+ uint64_t regID1, regID2 = getRegistryEntryID();
iter = getProviderIterator();
assert( iter );
// -- compat
if( 0 == (__state[1] & kIOServiceTermPhase3State)) {
/* we come down here on programmatic terminate */
+
+ regID1 = provider->getRegistryEntryID();
+ TLOG("%s[0x%qx]::stop1(%s[0x%qx])\n", getName(), regID2, provider->getName(), regID1);
+ IOServiceTrace(
+ IOSERVICE_TERMINATE_STOP,
+ (uintptr_t) regID1,
+ (uintptr_t) (regID1 >> 32),
+ (uintptr_t) regID2,
+ (uintptr_t) (regID2 >> 32));
+
stop( provider );
if( provider->isOpen( this ))
provider->close( this );
}
__state[1] &= ~kIOServiceConfigState;
- if( __state[0] & kIOServiceInactiveState)
- scheduleTerminatePhase2();
+ scheduleTerminatePhase2();
_adjustBusy( -1 );
unlockForArbitration();
next->unlockForArbitration();
if( (wasQuiet || nowQuiet) ) {
- uint64_t regID = next->getRegistryEntryID();
- IOServiceTrace(
+ uint64_t regID = next->getRegistryEntryID();
+ IOServiceTrace(
((wasQuiet/*nowBusy*/) ? IOSERVICE_BUSY : IOSERVICE_NONBUSY),
(uintptr_t) regID,
(uintptr_t) (regID >> 32),
IOReturn IOService::waitQuiet( uint64_t timeout )
{
- IOReturn ret;
+ IOReturn ret;
ret = waitForState( kIOServiceBusyStateMask, 0, timeout );
- if ((kIOReturnTimeout == ret) && (timeout >= 30000000000) && (kIOWaitQuietPanics & gIOKitDebug))
+ if ((kIOReturnTimeout == ret) && (timeout >= 41000000000) && (kIOWaitQuietPanics & gIOKitDebug))
+ {
+ IORegistryIterator * iter;
+ OSOrderedSet * set;
+ OSOrderedSet * leaves;
+ IOService * next;
+ IOService * nextParent;
+ char * string;
+ char * s;
+ size_t len, l;
+
+ len = 256;
+ string = IONew(char, len);
+ set = NULL;
+ iter = IORegistryIterator::iterateOver(this, gIOServicePlane, kIORegistryIterateRecursively);
+ leaves = OSOrderedSet::withCapacity(4);
+ if (iter) set = iter->iterateAll();
+ if (string && leaves && set)
{
- panic("IOService 0x%llx (%s) busy timeout", getRegistryEntryID(), getName());
+ while ((next = (IOService *) set->getLastObject()))
+ {
+ if (next->getBusyState())
+ {
+ leaves->setObject(next);
+ nextParent = next;
+ while ((nextParent = nextParent->getProvider()))
+ {
+ set->removeObject(nextParent);
+ leaves->removeObject(nextParent);
+ }
+ }
+ set->removeObject(next);
+ }
+ s = string;
+ while ((next = (IOService *) leaves->getLastObject()))
+ {
+ l = snprintf(s, len, "%s'%s'", ((s == string) ? "" : ", "), next->getName());
+ if (l >= len) break;
+ s += l;
+ len -= l;
+ leaves->removeObject(next);
+ }
}
- return (ret);
+ panic("busy timeout(%llds): %s", timeout / 1000000000ULL, string ? string : "");
+ }
+ return (ret);
}
IOReturn IOService::waitQuiet( mach_timespec_t * timeout )
return( kIOReturnSuccess );
}
+void IOService::cpusRunning(void)
+{
+ gCPUsRunning = true;
+}
+
void _IOServiceJob::pingConfig( _IOServiceJob * job )
{
int count;
// if( gNumConfigThreads) count++;// assume we're called from a config thread
create = ( (gOutstandingJobs > count)
- && (gNumConfigThreads < kMaxConfigThreads) );
+ && ((gNumConfigThreads < kMaxConfigThreads)
+ || (job->nub == gIOResources)
+ || !gCPUsRunning));
if( create) {
gNumConfigThreads++;
gNumWaitingThreads++;
return true;
}
+IOReturn IOResources::newUserClient(task_t owningTask, void * securityID,
+ UInt32 type, OSDictionary * properties,
+ IOUserClient ** handler)
+{
+ return( kIOReturnUnsupported );
+}
+
IOWorkLoop * IOResources::getWorkLoop() const
{
// If we are the resource root
count = table->getCount();
done = 0;
str = OSDynamicCast(OSString, table->getObject(gIOProviderClassKey));
+
if (str) {
done++;
match = ((kIOServiceClassDone & options) || (0 != metaCast(str)));
assert( table );
+ OSArray* aliasServiceRegIds = NULL;
+ IOService* foundAlternateService = NULL;
+
#if MATCH_DEBUG
OSDictionary * root = table;
#endif
do
{
count = table->getCount();
+
if (!(kIOServiceInternalDone & options))
{
match = where->matchInternal(table, options, &done);
nextTable = OSDynamicCast(OSDictionary,
table->getObject( gIOParentMatchKey ));
- if( nextTable) {
+ if(nextTable) {
// look for a matching entry anywhere up to root
match = false;
matchParent = true;
break;
}
while (true);
+
+ if(match == true) {
+ break;
+ }
+
+ if(matchParent == true) {
+ // check if service has an alias to search its other "parents" if a parent match isn't found
+ OSNumber* alternateRegistryID = OSDynamicCast(OSNumber, where->getProperty(kIOServiceLegacyMatchingRegistryIDKey));
+ if(alternateRegistryID != NULL) {
+ if(aliasServiceRegIds == NULL)
+ {
+ aliasServiceRegIds = OSArray::withCapacity(sizeof(alternateRegistryID));
+ }
+ aliasServiceRegIds->setObject(alternateRegistryID);
+ }
+ }
+ else {
+ break;
+ }
+
+ where = where->getProvider();
+ if(where == NULL) {
+ // there were no matching parent services, check to see if there are aliased services that have a matching parent
+ if(aliasServiceRegIds != NULL) {
+ unsigned int numAliasedServices = aliasServiceRegIds->getCount();
+ if(numAliasedServices != 0) {
+ OSNumber* alternateRegistryID = OSDynamicCast(OSNumber, aliasServiceRegIds->getObject(numAliasedServices - 1));
+ if(alternateRegistryID != NULL) {
+ OSDictionary* alternateMatchingDict = IOService::registryEntryIDMatching(alternateRegistryID->unsigned64BitValue());
+ aliasServiceRegIds->removeObject(numAliasedServices - 1);
+ if(alternateMatchingDict != NULL) {
+ OSSafeReleaseNULL(foundAlternateService);
+ foundAlternateService = IOService::copyMatchingService(alternateMatchingDict);
+ alternateMatchingDict->release();
+ if(foundAlternateService != NULL) {
+ where = foundAlternateService;
+ }
+ }
+ }
+ }
+ }
+ }
}
- while( matchParent && (!match) && (where = where->getProvider()) );
+ while( where != NULL );
+
+ OSSafeRelease(foundAlternateService);
+ OSSafeRelease(aliasServiceRegIds);
#if MATCH_DEBUG
- if (where != this)
+ if (where != this)
{
OSSerialize * s = OSSerialize::withCapacity(128);
root->serialize(s);
if (setCpuDelay)
{
+ if (holder && debug_boot_arg) {
+ strlcpy(sCPULatencyHolderName[delayType], holder->getName(), sizeof(sCPULatencyHolderName[delayType]));
+ }
+
// Must be safe to call from locked context
if (delayType == kCpuDelayBusStall)
{
{
ml_set_maxintdelay(ns);
}
+ sCPULatencyHolder[delayType]->setValue(holder ? holder->getRegistryEntryID() : 0);
+ sCPULatencySet [delayType]->setValue(ns);
OSArray * handlers = sCpuLatencyHandlers[delayType];
IOService * target;
return interruptController->unregisterInterrupt(this, source);
}
+IOReturn IOService::addInterruptStatistics(IOInterruptAccountingData * statistics, int source)
+{
+ IOReportLegend * legend = NULL;
+ IOInterruptAccountingData * oldValue = NULL;
+ IOInterruptAccountingReporter * newArray = NULL;
+ char subgroupName[64];
+ int newArraySize = 0;
+ int i = 0;
+
+ if (source < 0) {
+ return kIOReturnBadArgument;
+ }
+
+ /*
+ * We support statistics on a maximum of 256 interrupts per nub; if a nub
+ * has more than 256 interrupt specifiers associated with it, and tries
+ * to register a high interrupt index with interrupt accounting, panic.
+ * Having more than 256 interrupts associated with a single nub is
+ * probably a sign that something fishy is going on.
+ */
+ if (source > IA_INDEX_MAX) {
+ panic("addInterruptStatistics called for an excessively large index (%d)", source);
+ }
+
+ /*
+ * TODO: This is ugly (wrapping a lock around an allocation). I'm only
+ * leaving it as is because the likelihood of contention where we are
+ * actually growing the array is minimal (we would realistically need
+ * to be starting a driver for the first time, with an IOReporting
+ * client already in place). Nonetheless, cleanup that can be done
+ * to adhere to best practices; it'll make the code more complicated,
+ * unfortunately.
+ */
+ IOLockLock(reserved->interruptStatisticsLock);
+
+ /*
+ * Lazily allocate the statistics array.
+ */
+ if (!reserved->interruptStatisticsArray) {
+ reserved->interruptStatisticsArray = IONew(IOInterruptAccountingReporter, 1);
+ assert(reserved->interruptStatisticsArray);
+ reserved->interruptStatisticsArrayCount = 1;
+ bzero(reserved->interruptStatisticsArray, sizeof(*reserved->interruptStatisticsArray));
+ }
+
+ if (source >= reserved->interruptStatisticsArrayCount) {
+ /*
+ * We're still within the range of supported indices, but we are out
+ * of space in the current array. Do a nasty realloc (because
+ * IORealloc isn't a thing) here. We'll double the size with each
+ * reallocation.
+ *
+ * Yes, the "next power of 2" could be more efficient; but this will
+ * be invoked incredibly rarely. Who cares.
+ */
+ newArraySize = (reserved->interruptStatisticsArrayCount << 1);
+
+ while (newArraySize <= source)
+ newArraySize = (newArraySize << 1);
+ newArray = IONew(IOInterruptAccountingReporter, newArraySize);
+
+ assert(newArray);
+
+ /*
+ * TODO: This even zeroes the memory it is about to overwrite.
+ * Shameful; fix it. Not particularly high impact, however.
+ */
+ bzero(newArray, newArraySize * sizeof(*newArray));
+ memcpy(newArray, reserved->interruptStatisticsArray, reserved->interruptStatisticsArrayCount * sizeof(*newArray));
+ IODelete(reserved->interruptStatisticsArray, IOInterruptAccountingReporter, reserved->interruptStatisticsArrayCount);
+ reserved->interruptStatisticsArray = newArray;
+ reserved->interruptStatisticsArrayCount = newArraySize;
+ }
+
+ if (!reserved->interruptStatisticsArray[source].reporter) {
+ /*
+ * We don't have a reporter associated with this index yet, so we
+ * need to create one.
+ */
+ /*
+ * TODO: Some statistics do in fact have common units (time); should this be
+ * split into separate reporters to communicate this?
+ */
+ reserved->interruptStatisticsArray[source].reporter = IOSimpleReporter::with(this, kIOReportCategoryPower, kIOReportUnitNone);
+
+ /*
+ * Each statistic is given an identifier based on the interrupt index (which
+ * should be unique relative to any single nub) and the statistic involved.
+ * We should now have a sane (small and positive) index, so start
+ * constructing the channels for statistics.
+ */
+ for (i = 0; i < IA_NUM_INTERRUPT_ACCOUNTING_STATISTICS; i++) {
+ /*
+ * TODO: Currently, this does not add channels for disabled statistics.
+ * Will this be confusing for clients? If so, we should just add the
+ * channels; we can avoid updating the channels even if they exist.
+ */
+ if (IA_GET_STATISTIC_ENABLED(i))
+ reserved->interruptStatisticsArray[source].reporter->addChannel(IA_GET_CHANNEL_ID(source, i), kInterruptAccountingStatisticNameArray[i]);
+ }
+
+ /*
+ * We now need to add the legend for this reporter to the registry.
+ */
+ legend = IOReportLegend::with(OSDynamicCast(OSArray, getProperty(kIOReportLegendKey)));
+
+ /*
+ * Note that while we compose the subgroup name, we do not need to
+ * manage its lifecycle (the reporter will handle this).
+ */
+ snprintf(subgroupName, sizeof(subgroupName), "%s %d", getName(), source);
+ subgroupName[sizeof(subgroupName) - 1] = 0;
+ legend->addReporterLegend(reserved->interruptStatisticsArray[source].reporter, kInterruptAccountingGroupName, subgroupName);
+ setProperty(kIOReportLegendKey, legend->getLegend());
+ legend->release();
+
+ /*
+ * TODO: Is this a good idea? Probably not; my assumption is it opts
+ * all entities who register interrupts into public disclosure of all
+ * IOReporting channels. Unfortunately, this appears to be as fine
+ * grain as it gets.
+ */
+ setProperty(kIOReportLegendPublicKey, true);
+ }
+
+ /*
+ * Don't stomp existing entries. If we are about to, panic; this
+ * probably means we failed to tear down our old interrupt source
+ * correctly.
+ */
+ oldValue = reserved->interruptStatisticsArray[source].statistics;
+
+ if (oldValue) {
+ panic("addInterruptStatistics call for index %d would have clobbered existing statistics", source);
+ }
+
+ reserved->interruptStatisticsArray[source].statistics = statistics;
+
+ /*
+ * Inherit the reporter values for each statistic. The target may
+ * be torn down as part of the runtime of the service (especially
+ * for sleep/wake), so we inherit in order to avoid having values
+ * reset for no apparent reason. Our statistics are ultimately
+ * tied to the index and the sevice, not to an individual target,
+ * so we should maintain them accordingly.
+ */
+ interruptAccountingDataInheritChannels(reserved->interruptStatisticsArray[source].statistics, reserved->interruptStatisticsArray[source].reporter);
+
+ IOLockUnlock(reserved->interruptStatisticsLock);
+
+ return kIOReturnSuccess;
+}
+
+IOReturn IOService::removeInterruptStatistics(int source)
+{
+ IOInterruptAccountingData * value = NULL;
+
+ if (source < 0) {
+ return kIOReturnBadArgument;
+ }
+
+ IOLockLock(reserved->interruptStatisticsLock);
+
+ /*
+ * We dynamically grow the statistics array, so an excessively
+ * large index value has NEVER been registered. This either
+ * means our cap on the array size is too small (unlikely), or
+ * that we have been passed a corrupt index (this must be passed
+ * the plain index into the interrupt specifier list).
+ */
+ if (source >= reserved->interruptStatisticsArrayCount) {
+ panic("removeInterruptStatistics called for index %d, which was never registered", source);
+ }
+
+ assert(reserved->interruptStatisticsArray);
+
+ /*
+ * If there is no existing entry, we are most likely trying to
+ * free an interrupt owner twice, or we have corrupted the
+ * index value.
+ */
+ value = reserved->interruptStatisticsArray[source].statistics;
+
+ if (!value) {
+ panic("removeInterruptStatistics called for empty index %d", source);
+ }
+
+ /*
+ * We update the statistics, so that any delta with the reporter
+ * state is not lost.
+ */
+ interruptAccountingDataUpdateChannels(reserved->interruptStatisticsArray[source].statistics, reserved->interruptStatisticsArray[source].reporter);
+ reserved->interruptStatisticsArray[source].statistics = NULL;
+ IOLockUnlock(reserved->interruptStatisticsLock);
+
+ return kIOReturnSuccess;
+}
+
IOReturn IOService::getInterruptType(int source, int *interruptType)
{
IOInterruptController *interruptController;
}
}
+ IOLockLock(reserved->interruptStatisticsLock);
+
+ /* The array count is signed (because the interrupt indices are signed), hence the cast */
+ for (cnt = 0; cnt < (unsigned) reserved->interruptStatisticsArrayCount; cnt++) {
+ if (reserved->interruptStatisticsArray[cnt].reporter) {
+ /*
+ * If the reporter is currently associated with the statistics
+ * for an event source, we may need to update the reporter.
+ */
+ if (reserved->interruptStatisticsArray[cnt].statistics)
+ interruptAccountingDataUpdateChannels(reserved->interruptStatisticsArray[cnt].statistics, reserved->interruptStatisticsArray[cnt].reporter);
+
+ reserved->interruptStatisticsArray[cnt].reporter->configureReport(channelList, action, result, destination);
+ }
+ }
+
+ IOLockUnlock(reserved->interruptStatisticsLock);
+
return kIOReturnSuccess;
}
}
}
+ IOLockLock(reserved->interruptStatisticsLock);
+
+ /* The array count is signed (because the interrupt indices are signed), hence the cast */
+ for (cnt = 0; cnt < (unsigned) reserved->interruptStatisticsArrayCount; cnt++) {
+ if (reserved->interruptStatisticsArray[cnt].reporter) {
+ /*
+ * If the reporter is currently associated with the statistics
+ * for an event source, we need to update the reporter.
+ */
+ if (reserved->interruptStatisticsArray[cnt].statistics)
+ interruptAccountingDataUpdateChannels(reserved->interruptStatisticsArray[cnt].statistics, reserved->interruptStatisticsArray[cnt].reporter);
+
+ reserved->interruptStatisticsArray[cnt].reporter->updateReport(channelList, action, result, destination);
+ }
+ }
+
+ IOLockUnlock(reserved->interruptStatisticsLock);
+
return kIOReturnSuccess;
}
+uint64_t IOService::getAuthorizationID( void )
+{
+ return reserved->authorizationID;
+}
+
+IOReturn IOService::setAuthorizationID( uint64_t authorizationID )
+{
+ OSObject * entitlement;
+ IOReturn status;
+
+ entitlement = IOUserClient::copyClientEntitlement( current_task( ), "com.apple.private.iokit.IOServiceSetAuthorizationID" );
+
+ if ( entitlement )
+ {
+ if ( entitlement == kOSBooleanTrue )
+ {
+ reserved->authorizationID = authorizationID;
+
+ status = kIOReturnSuccess;
+ }
+ else
+ {
+ status = kIOReturnNotPrivileged;
+ }
+
+ entitlement->release( );
+ }
+ else
+ {
+ status = kIOReturnNotPrivileged;
+ }
+
+ return status;
+}
+
#if __LP64__
OSMetaClassDefineReservedUsed(IOService, 0);
OSMetaClassDefineReservedUsed(IOService, 1);
projects / apple / xnu.git / blobdiff