Loading...
iokit/Kernel/IOInterruptEventSource.cpp xnu-12377.101.15 xnu-2422.1.72
--- xnu/xnu-12377.101.15/iokit/Kernel/IOInterruptEventSource.cpp
+++ xnu/xnu-2422.1.72/iokit/Kernel/IOInterruptEventSource.cpp
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 1998-2014 Apple Inc. All rights reserved.
+ * Copyright (c) 1998-2010 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
- *
+ * 
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
@@ -22,13 +22,10 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
- *
+ * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
-#define IOKIT_ENABLE_SHARED_PTR
-
-#include <ptrauth.h>
 #include <IOKit/IOInterruptEventSource.h>
 #include <IOKit/IOKitDebug.h>
 #include <IOKit/IOLib.h>
@@ -36,8 +33,6 @@
 #include <IOKit/IOInterrupts.h>
 #include <IOKit/IOTimeStamp.h>
 #include <IOKit/IOWorkLoop.h>
-#include <IOKit/IOInterruptAccountingPrivate.h>
-#include <libkern/Block_private.h>
 
 #if IOKITSTATS
 
@@ -76,465 +71,229 @@
 OSMetaClassDefineReservedUnused(IOInterruptEventSource, 6);
 OSMetaClassDefineReservedUnused(IOInterruptEventSource, 7);
 
-bool
-IOInterruptEventSource::init(OSObject *inOwner,
-    Action inAction,
-    IOService *inProvider,
-    int inIntIndex)
-{
-	bool res = true;
-
-	if (inIntIndex < 0) {
-		return false;
+bool IOInterruptEventSource::init(OSObject *inOwner,
+				  Action inAction,
+				  IOService *inProvider,
+				  int inIntIndex)
+{
+    bool res = true;
+
+    if ( !super::init(inOwner, (IOEventSourceAction) inAction) )
+        return false;
+
+    provider = inProvider;
+    producerCount = consumerCount = 0;
+    autoDisable = explicitDisable = false;
+    intIndex = ~inIntIndex;
+
+    // Assumes inOwner holds a reference(retain) on the provider
+    if (inProvider) {
+        res = (kIOReturnSuccess == registerInterruptHandler(inProvider, inIntIndex));
+	if (res)
+	    intIndex = inIntIndex;
+    }
+
+    IOStatisticsInitializeCounter();
+
+    return res;
+}
+
+IOReturn IOInterruptEventSource::registerInterruptHandler(IOService *inProvider,
+				  int inIntIndex)
+{
+    IOReturn ret;
+    int intType;
+    IOInterruptAction intHandler;
+
+    ret = inProvider->getInterruptType(inIntIndex, &intType);
+    if (kIOReturnSuccess != ret)
+	return (ret);
+
+    autoDisable = (intType == kIOInterruptTypeLevel);
+    if (autoDisable) {
+	intHandler = OSMemberFunctionCast(IOInterruptAction,
+	    this, &IOInterruptEventSource::disableInterruptOccurred);
+    }
+    else
+	intHandler = OSMemberFunctionCast(IOInterruptAction,
+	    this, &IOInterruptEventSource::normalInterruptOccurred);
+
+    ret = provider->registerInterrupt(inIntIndex, this, intHandler);
+
+    return (ret);
+}
+
+IOInterruptEventSource *
+IOInterruptEventSource::interruptEventSource(OSObject *inOwner,
+					     Action inAction,
+					     IOService *inProvider,
+					     int inIntIndex)
+{
+    IOInterruptEventSource *me = new IOInterruptEventSource;
+
+    if (me && !me->init(inOwner, inAction, inProvider, inIntIndex)) {
+        me->release();
+        return 0;
+    }
+
+    return me;
+}
+
+void IOInterruptEventSource::free()
+{
+    if (provider && intIndex >= 0)
+        provider->unregisterInterrupt(intIndex);
+
+    super::free();
+}
+
+void IOInterruptEventSource::enable()
+{
+    if (provider && intIndex >= 0) {
+        provider->enableInterrupt(intIndex);
+        explicitDisable = false;
+        enabled = true;
+    }
+}
+
+void IOInterruptEventSource::disable()
+{
+    if (provider && intIndex >= 0) {
+        provider->disableInterrupt(intIndex);
+        explicitDisable = true;
+        enabled = false;
+    }
+}
+
+void IOInterruptEventSource::setWorkLoop(IOWorkLoop *inWorkLoop)
+{
+    if (inWorkLoop) super::setWorkLoop(inWorkLoop);
+
+    if (provider) {
+	if (!inWorkLoop) {
+	    if (intIndex >= 0) {
+		provider->unregisterInterrupt(intIndex);
+		intIndex = ~intIndex;
+	    }
+	} else if ((intIndex < 0) && (kIOReturnSuccess == registerInterruptHandler(provider, ~intIndex))) {
+	    intIndex = ~intIndex;
 	}
-
-	if (!super::init(inOwner, (IOEventSourceAction) inAction)) {
-		return false;
+    }
+
+    if (!inWorkLoop) super::setWorkLoop(inWorkLoop);
+}
+
+const IOService *IOInterruptEventSource::getProvider() const
+{
+    return provider;
+}
+
+int IOInterruptEventSource::getIntIndex() const
+{
+    return intIndex;
+}
+
+bool IOInterruptEventSource::getAutoDisable() const
+{
+    return autoDisable;
+}
+
+bool IOInterruptEventSource::checkForWork()
+{
+    unsigned int cacheProdCount = producerCount;
+    int numInts = cacheProdCount - consumerCount;
+    IOInterruptEventAction intAction = (IOInterruptEventAction) action;
+	bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+	
+    IOStatisticsCheckForWork();
+	
+	if ( numInts > 0 )
+	{
+		if (trace)
+			IOTimeStampStartConstant(IODBG_INTES(IOINTES_ACTION),
+						 VM_KERNEL_UNSLIDE(intAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+		
+		// Call the handler
+		(*intAction)(owner, this, numInts);
+		
+		if (trace)
+			IOTimeStampEndConstant(IODBG_INTES(IOINTES_ACTION),
+					       VM_KERNEL_UNSLIDE(intAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+		
+		consumerCount = cacheProdCount;
+		if (autoDisable && !explicitDisable)
+			enable();
 	}
-
-	reserved = IOMallocType(ExpansionData);
-
-	provider = inProvider;
-	producerCount = consumerCount = 0;
-	autoDisable = explicitDisable = false;
-	intIndex = ~inIntIndex;
-
-	// Assumes inOwner holds a reference(retain) on the provider
-	if (inProvider) {
-		if (IA_ANY_STATISTICS_ENABLED) {
-			/*
-			 * We only treat this as an "interrupt" if it has a provider; if it does,
-			 * set up the objects necessary to track interrupt statistics.  Interrupt
-			 * event sources without providers are most likely being used as simple
-			 * event source in order to poke at workloops and kick off work.
-			 *
-			 * We also avoid try to avoid interrupt accounting overhead if none of
-			 * the statistics are enabled.
-			 */
-			reserved->statistics = IOMallocType(IOInterruptAccountingData);
-
-			reserved->statistics->owner = this;
-		}
-
-		res = (kIOReturnSuccess == registerInterruptHandler(inProvider, inIntIndex));
-
-		if (res) {
-			intIndex = inIntIndex;
-		}
+	
+	else if ( numInts < 0 )
+	{
+		if (trace)
+			IOTimeStampStartConstant(IODBG_INTES(IOINTES_ACTION),
+						 VM_KERNEL_UNSLIDE(intAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+		
+		// Call the handler
+		(*intAction)(owner, this, -numInts);
+		
+		if (trace)
+			IOTimeStampEndConstant(IODBG_INTES(IOINTES_ACTION),
+					       VM_KERNEL_UNSLIDE(intAction), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+		
+		consumerCount = cacheProdCount;
+		if (autoDisable && !explicitDisable)
+			enable();
 	}
-
-	IOStatisticsInitializeCounter();
-
-	return res;
-}
-
-IOReturn
-IOInterruptEventSource::registerInterruptHandler(IOService *inProvider,
-    int inIntIndex)
-{
-	IOReturn ret;
-	int intType;
-	IOInterruptAction intHandler;
-
-	ret = inProvider->getInterruptType(inIntIndex, &intType);
-	if (kIOReturnSuccess != ret) {
-		return ret;
-	}
-
-	autoDisable = (intType == kIOInterruptTypeLevel);
-	if (autoDisable) {
-		intHandler = OSMemberFunctionCast(IOInterruptAction,
-		    this, &IOInterruptEventSource::disableInterruptOccurred);
-	} else {
-		intHandler = OSMemberFunctionCast(IOInterruptAction,
-		    this, &IOInterruptEventSource::normalInterruptOccurred);
-	}
-
-	ret = provider->registerInterrupt(inIntIndex, this, intHandler);
-
-	/*
-	 * Add statistics to the provider.  The setWorkLoop convention should ensure
-	 * that we always go down the unregister path before we register (outside of
-	 * init()), so we don't have to worry that we will invoke addInterruptStatistics
-	 * erroneously.
-	 */
-	if ((ret == kIOReturnSuccess) && (reserved->statistics)) {
-		/*
-		 * Stash the normal index value, for the sake of debugging.
-		 */
-		reserved->statistics->interruptIndex = inIntIndex;
-
-		/*
-		 * We need to hook the interrupt information up to the provider so that it
-		 * can find the statistics for this interrupt when desired.  The provider is
-		 * responsible for maintaining the reporter for a particular interrupt, and
-		 * needs a handle on the statistics so that it can request that the reporter
-		 * be updated as needed.  Errors are considered "soft" for the moment (it
-		 * will either panic, or fail in a way such that we can still service the
-		 * interrupt).
-		 */
-		provider->addInterruptStatistics(reserved->statistics, inIntIndex);
-
-		/*
-		 * Add the statistics object to the global list of statistics objects; this
-		 * is an aid to debugging (we can trivially find statistics for all eligible
-		 * interrupts, and dump them; potentially helpful if the system is wedged
-		 * due to interrupt activity).
-		 */
-		interruptAccountingDataAddToList(reserved->statistics);
-	}
-
-	return ret;
-}
-
-void
-IOInterruptEventSource::unregisterInterruptHandler(IOService *inProvider,
-    int inIntIndex)
-{
-	if (reserved->statistics) {
-		interruptAccountingDataRemoveFromList(reserved->statistics);
-		provider->removeInterruptStatistics(reserved->statistics->interruptIndex);
-	}
-
-	provider->unregisterInterrupt(inIntIndex);
-}
-
-
-OSSharedPtr<IOInterruptEventSource>
-IOInterruptEventSource::interruptEventSource(OSObject *inOwner,
-    Action inAction,
-    IOService *inProvider,
-    int inIntIndex)
-{
-	OSSharedPtr<IOInterruptEventSource> me = OSMakeShared<IOInterruptEventSource>();
-
-	if (me && !me->init(inOwner, inAction, inProvider, inIntIndex)) {
-		return nullptr;
-	}
-
-	return me;
-}
-
-OSSharedPtr<IOInterruptEventSource>
-IOInterruptEventSource::interruptEventSource(OSObject *inOwner,
-    IOService *inProvider,
-    int inIntIndex,
-    ActionBlock inAction)
-{
-	OSSharedPtr<IOInterruptEventSource> ies;
-	ies = IOInterruptEventSource::interruptEventSource(inOwner, (Action) NULL, inProvider, inIntIndex);
-	if (ies) {
-		ies->setActionBlock((IOEventSource::ActionBlock) inAction);
-	}
-
-	return ies;
-}
-
-void
-IOInterruptEventSource::free()
-{
-	if (provider && intIndex >= 0) {
-		unregisterInterruptHandler(provider, intIndex);
-	}
-
-	if (reserved) {
-		if (reserved->statistics) {
-			IOFreeType(reserved->statistics, IOInterruptAccountingData);
-		}
-
-		IOFreeType(reserved, ExpansionData);
-	}
-
-	super::free();
-}
-
-void
-IOInterruptEventSource::enable()
-{
-	if (provider && intIndex >= 0) {
-		provider->enableInterrupt(intIndex);
-		explicitDisable = false;
-		enabled = true;
-	}
-}
-
-void
-IOInterruptEventSource::disable()
-{
-	if (provider && intIndex >= 0) {
-		provider->disableInterrupt(intIndex);
-		explicitDisable = true;
-		enabled = false;
-	}
-}
-
-void
-IOInterruptEventSource::setWorkLoop(IOWorkLoop *inWorkLoop)
-{
-	if (inWorkLoop) {
-		super::setWorkLoop(inWorkLoop);
-	}
-
-	if (provider) {
-		if (!inWorkLoop) {
-			if (intIndex >= 0) {
-				/*
-				 * It isn't necessarily safe to wait until free() to unregister the interrupt;
-				 * our provider may disappear.
-				 */
-				unregisterInterruptHandler(provider, intIndex);
-				intIndex = ~intIndex;
-			}
-		} else if ((intIndex < 0) && (kIOReturnSuccess == registerInterruptHandler(provider, ~intIndex))) {
-			intIndex = ~intIndex;
-		}
-	}
-
-	if (!inWorkLoop) {
-		super::setWorkLoop(inWorkLoop);
-	}
-}
-
-const IOService *
-IOInterruptEventSource::getProvider() const
-{
-	return provider;
-}
-
-int
-IOInterruptEventSource::getIntIndex() const
-{
-	return intIndex;
-}
-
-bool
-IOInterruptEventSource::getAutoDisable() const
-{
-	return autoDisable;
-}
-
-bool
-IOInterruptEventSource::checkForWork()
-{
-	uint64_t startSystemTime = 0;
-	uint64_t endSystemTime = 0;
-	uint64_t startCPUTime = 0;
-	uint64_t endCPUTime = 0;
-	unsigned int cacheProdCount = producerCount;
-	int numInts = cacheProdCount - consumerCount;
-	IOEventSource::Action intAction = action;
-	ActionBlock intActionBlock = (ActionBlock) actionBlock;
-	void *address;
+	
+    return false;
+}
+
+void IOInterruptEventSource::normalInterruptOccurred
+    (void */*refcon*/, IOService */*prov*/, int /*source*/)
+{
 	bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
-
-	if (kActionBlock & flags) {
-		address = ptrauth_nop_cast(void *, _Block_get_invoke_fn((struct Block_layout *)intActionBlock));
-	} else {
-		address = ptrauth_nop_cast(void *, intAction);
-	}
-
-	IOStatisticsCheckForWork();
-
-	if (numInts > 0) {
-		if (trace) {
-			IOTimeStampStartConstant(IODBG_INTES(IOINTES_ACTION),
-			    VM_KERNEL_ADDRHIDE(address),
-			    VM_KERNEL_ADDRHIDE(owner),
-			    VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
-		}
-
-		if (reserved->statistics) {
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelSystemTimeIndex)) {
-				startSystemTime = mach_absolute_time();
-			}
-
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelCPUTimeIndex)) {
-				startCPUTime = thread_get_runtime_self();
-			}
-		}
-
-		// Call the handler
-		if (kActionBlock & flags) {
-			(intActionBlock)(this, numInts);
-		} else {
-			((IOInterruptEventAction)intAction)(owner, this, numInts);
-		}
-
-		if (reserved->statistics) {
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelCountIndex)) {
-				IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingSecondLevelCountIndex], 1);
-			}
-
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelCPUTimeIndex)) {
-				endCPUTime = thread_get_runtime_self();
-				IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingSecondLevelCPUTimeIndex], endCPUTime - startCPUTime);
-			}
-
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelSystemTimeIndex)) {
-				endSystemTime = mach_absolute_time();
-				IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingSecondLevelSystemTimeIndex], endSystemTime - startSystemTime);
-			}
-		}
-
-		if (trace) {
-			IOTimeStampEndConstant(IODBG_INTES(IOINTES_ACTION),
-			    VM_KERNEL_ADDRHIDE(address),
-			    VM_KERNEL_ADDRHIDE(owner),
-			    VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
-		}
-
-		consumerCount = cacheProdCount;
-		if (autoDisable && !explicitDisable) {
-			enable();
-		}
-	} else if (numInts < 0) {
-		if (trace) {
-			IOTimeStampStartConstant(IODBG_INTES(IOINTES_ACTION),
-			    VM_KERNEL_ADDRHIDE(address),
-			    VM_KERNEL_ADDRHIDE(owner),
-			    VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
-		}
-
-		if (reserved->statistics) {
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelSystemTimeIndex)) {
-				startSystemTime = mach_absolute_time();
-			}
-
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelCPUTimeIndex)) {
-				startCPUTime = thread_get_runtime_self();
-			}
-		}
-
-		// Call the handler
-		if (kActionBlock & flags) {
-			(intActionBlock)(this, numInts);
-		} else {
-			((IOInterruptEventAction)intAction)(owner, this, numInts);
-		}
-
-		if (reserved->statistics) {
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelSystemTimeIndex)) {
-				endSystemTime = mach_absolute_time();
-				IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingSecondLevelSystemTimeIndex], endSystemTime - startSystemTime);
-			}
-
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelCPUTimeIndex)) {
-				endCPUTime = thread_get_runtime_self();
-				IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingSecondLevelCPUTimeIndex], endCPUTime - startCPUTime);
-			}
-
-			if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingSecondLevelCountIndex)) {
-				IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingSecondLevelCountIndex], 1);
-			}
-		}
-
-		if (trace) {
-			IOTimeStampEndConstant(IODBG_INTES(IOINTES_ACTION),
-			    VM_KERNEL_ADDRHIDE(address),
-			    VM_KERNEL_ADDRHIDE(owner),
-			    VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
-		}
-
-		consumerCount = cacheProdCount;
-		if (autoDisable && !explicitDisable) {
-			enable();
-		}
-	}
-
-	return false;
-}
-
-void
-IOInterruptEventSource::normalInterruptOccurred
-(void */*refcon*/, IOService */*prov*/, int /*source*/)
+	
+    IOStatisticsInterrupt();
+    producerCount++;
+	
+	if (trace)
+	    IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+	
+    signalWorkAvailable();
+	
+	if (trace)
+	    IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+}
+
+void IOInterruptEventSource::disableInterruptOccurred
+    (void */*refcon*/, IOService *prov, int source)
 {
 	bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
-
-	IOStatisticsInterrupt();
-	producerCount++;
-
-	if (trace) {
-		IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
-	}
-
-	if (reserved->statistics) {
-		if (reserved->statistics->enablePrimaryTimestamp) {
-			reserved->statistics->primaryTimestamp = mach_absolute_time();
-		}
-		if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelCountIndex)) {
-			IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelCountIndex], 1);
-		}
-	}
-
-	signalWorkAvailable();
-
-	if (trace) {
-		IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
-	}
-}
-
-void
-IOInterruptEventSource::disableInterruptOccurred
-(void */*refcon*/, IOService *prov, int source)
-{
-	bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
-
-	prov->disableInterrupt(source); /* disable the interrupt */
-
-	IOStatisticsInterrupt();
-	producerCount++;
-
-	if (trace) {
-		IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
-	}
-
-	if (reserved->statistics) {
-		if (reserved->statistics->enablePrimaryTimestamp) {
-			reserved->statistics->primaryTimestamp = mach_absolute_time();
-		}
-		if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelCountIndex)) {
-			IA_ADD_VALUE(&reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelCountIndex], 1);
-		}
-	}
-
-	signalWorkAvailable();
-
-	if (trace) {
-		IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
-	}
-}
-
-void
-IOInterruptEventSource::interruptOccurred
-(void *_refcon, IOService *prov, int source)
-{
-	if (autoDisable && prov) {
-		disableInterruptOccurred(_refcon, prov, source);
-	} else {
-		normalInterruptOccurred(_refcon, prov, source);
-	}
-}
-
-IOReturn
-IOInterruptEventSource::warmCPU
-(uint64_t abstime)
-{
+	
+    prov->disableInterrupt(source);	/* disable the interrupt */
+	
+    IOStatisticsInterrupt();
+    producerCount++;
+	
+	if (trace)
+	    IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+    
+    signalWorkAvailable();
+	
+	if (trace)
+	    IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+}
+
+void IOInterruptEventSource::interruptOccurred
+    (void *refcon, IOService *prov, int source)
+{
+    if (autoDisable && prov)
+        disableInterruptOccurred(refcon, prov, source);
+    else
+        normalInterruptOccurred(refcon, prov, source);
+}
+
+IOReturn IOInterruptEventSource::warmCPU
+    (uint64_t abstime)
+{
+
 	return ml_interrupt_prewarm(abstime);
 }
-
-void
-IOInterruptEventSource::enablePrimaryInterruptTimestamp(bool enable)
-{
-	if (reserved->statistics) {
-		reserved->statistics->enablePrimaryTimestamp = enable;
-	}
-}
-
-uint64_t
-IOInterruptEventSource::getPrimaryInterruptTimestamp()
-{
-	if (reserved->statistics && reserved->statistics->enablePrimaryTimestamp) {
-		return reserved->statistics->primaryTimestamp;
-	}
-	return -1ULL;
-}