/*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2014 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * 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@
*/
-/*
-Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
-HISTORY
- 1998-7-13 Godfrey van der Linden(gvdl)
- Created.
-*/
+#define IOKIT_ENABLE_SHARED_PTR
+
+#include <ptrauth.h>
#include <IOKit/IOInterruptEventSource.h>
+#include <IOKit/IOKitDebug.h>
#include <IOKit/IOLib.h>
#include <IOKit/IOService.h>
#include <IOKit/IOInterrupts.h>
#include <IOKit/IOTimeStamp.h>
#include <IOKit/IOWorkLoop.h>
+#include <IOKit/IOInterruptAccountingPrivate.h>
+#include <libkern/Block_private.h>
+
+#if IOKITSTATS
-#if KDEBUG
+#define IOStatisticsInitializeCounter() \
+do { \
+ IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsInterruptEventSourceCounter); \
+} while (0)
-#define IOTimeTypeStampS(t) \
-do { \
- IOTimeStampStart(IODBG_INTES(t), \
- (unsigned int) this, (unsigned int) owner); \
-} while(0)
+#define IOStatisticsCheckForWork() \
+do { \
+ IOStatistics::countInterruptCheckForWork(IOEventSource::reserved->counter); \
+} while (0)
-#define IOTimeTypeStampE(t) \
-do { \
- IOTimeStampEnd(IODBG_INTES(t), \
- (unsigned int) this, (unsigned int) owner); \
-} while(0)
+#define IOStatisticsInterrupt() \
+do { \
+ IOStatistics::countInterrupt(IOEventSource::reserved->counter); \
+} while (0)
-#define IOTimeStampLatency() \
-do { \
- IOTimeStampEnd(IODBG_INTES(IOINTES_LAT), \
- (unsigned int) this, (unsigned int) owner); \
-} while(0)
+#else
-#else /* !KDEBUG */
-#define IOTimeTypeStampS(t)
-#define IOTimeTypeStampE(t)
-#define IOTimeStampLatency()
-#endif /* KDEBUG */
+#define IOStatisticsInitializeCounter()
+#define IOStatisticsCheckForWork()
+#define IOStatisticsInterrupt()
+
+#endif // IOKITSTATS
#define super IOEventSource
OSMetaClassDefineReservedUnused(IOInterruptEventSource, 6);
OSMetaClassDefineReservedUnused(IOInterruptEventSource, 7);
-bool IOInterruptEventSource::init(OSObject *inOwner,
- Action inAction,
- IOService *inProvider,
- int inIntIndex)
+bool
+IOInterruptEventSource::init(OSObject *inOwner,
+ Action inAction,
+ IOService *inProvider,
+ int inIntIndex)
{
- bool res = true;
+ bool res = true;
+
+ if (!super::init(inOwner, (IOEventSourceAction) inAction)) {
+ return false;
+ }
+
+ reserved = IONew(ExpansionData, 1);
+
+ if (!reserved) {
+ return false;
+ }
+
+ bzero(reserved, sizeof(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 = IONew(IOInterruptAccountingData, 1);
+
+ if (!reserved->statistics) {
+ /*
+ * We rely on the free() routine to clean up after us if init fails
+ * midway.
+ */
+ return false;
+ }
+
+ bzero(reserved->statistics, sizeof(IOInterruptAccountingData));
+
+ reserved->statistics->owner = this;
+ }
+
+ res = (kIOReturnSuccess == registerInterruptHandler(inProvider, inIntIndex));
+
+ if (res) {
+ intIndex = inIntIndex;
+ }
+ }
+
+ IOStatisticsInitializeCounter();
+
+ return res;
+}
- if ( !super::init(inOwner, (IOEventSourceAction) inAction) )
- return false;
+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;
+}
- provider = inProvider;
- producerCount = consumerCount = 0;
- autoDisable = explicitDisable = false;
- intIndex = -1;
+void
+IOInterruptEventSource::unregisterInterruptHandler(IOService *inProvider,
+ int inIntIndex)
+{
+ if (reserved->statistics) {
+ interruptAccountingDataRemoveFromList(reserved->statistics);
+ provider->removeInterruptStatistics(reserved->statistics->interruptIndex);
+ }
- // Assumes inOwner holds a reference(retain) on the provider
- if (inProvider) {
- int intType;
+ provider->unregisterInterrupt(inIntIndex);
+}
- res = (kIOReturnSuccess
- == inProvider->getInterruptType(inIntIndex, &intType));
- if (res) {
- IOInterruptAction intHandler;
- autoDisable = (intType == kIOInterruptTypeLevel);
- if (autoDisable) {
- intHandler = OSMemberFunctionCast(IOInterruptAction,
- this, &IOInterruptEventSource::disableInterruptOccurred);
- }
- else
- intHandler = OSMemberFunctionCast(IOInterruptAction,
- this, &IOInterruptEventSource::normalInterruptOccurred);
+OSSharedPtr<IOInterruptEventSource>
+IOInterruptEventSource::interruptEventSource(OSObject *inOwner,
+ Action inAction,
+ IOService *inProvider,
+ int inIntIndex)
+{
+ OSSharedPtr<IOInterruptEventSource> me = OSMakeShared<IOInterruptEventSource>();
- res = (kIOReturnSuccess == inProvider->registerInterrupt
- (inIntIndex, this, intHandler));
- if (res)
- intIndex = inIntIndex;
- }
- }
+ if (me && !me->init(inOwner, inAction, inProvider, inIntIndex)) {
+ return nullptr;
+ }
- return res;
+ return me;
}
-IOInterruptEventSource *
+OSSharedPtr<IOInterruptEventSource>
IOInterruptEventSource::interruptEventSource(OSObject *inOwner,
- Action inAction,
- IOService *inProvider,
- int inIntIndex)
+ 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()
{
- IOInterruptEventSource *me = new IOInterruptEventSource;
+ if (provider && intIndex >= 0) {
+ unregisterInterruptHandler(provider, intIndex);
+ }
- if (me && !me->init(inOwner, inAction, inProvider, inIntIndex)) {
- me->release();
- return 0;
- }
+ if (reserved) {
+ if (reserved->statistics) {
+ IODelete(reserved->statistics, IOInterruptAccountingData, 1);
+ }
- return me;
+ IODelete(reserved, ExpansionData, 1);
+ }
+
+ super::free();
}
-void IOInterruptEventSource::free()
+void
+IOInterruptEventSource::enable()
{
- if (provider && intIndex != -1)
- provider->unregisterInterrupt(intIndex);
+ if (provider && intIndex >= 0) {
+ provider->enableInterrupt(intIndex);
+ explicitDisable = false;
+ enabled = true;
+ }
+}
- super::free();
+void
+IOInterruptEventSource::disable()
+{
+ if (provider && intIndex >= 0) {
+ provider->disableInterrupt(intIndex);
+ explicitDisable = true;
+ enabled = false;
+ }
}
-void IOInterruptEventSource::enable()
+void
+IOInterruptEventSource::setWorkLoop(IOWorkLoop *inWorkLoop)
{
- if (provider && intIndex != -1) {
- provider->enableInterrupt(intIndex);
- explicitDisable = false;
- }
+ 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);
+ }
}
-void IOInterruptEventSource::disable()
+const IOService *
+IOInterruptEventSource::getProvider() const
{
- if (provider && intIndex != -1) {
- provider->disableInterrupt(intIndex);
- explicitDisable = true;
- }
+ return provider;
}
-const IOService *IOInterruptEventSource::getProvider() const
+int
+IOInterruptEventSource::getIntIndex() const
{
- return provider;
+ return intIndex;
}
-int IOInterruptEventSource::getIntIndex() const
+bool
+IOInterruptEventSource::getAutoDisable() const
{
- return intIndex;
+ return autoDisable;
}
-bool IOInterruptEventSource::getAutoDisable() const
+bool
+IOInterruptEventSource::checkForWork()
{
- return autoDisable;
+ 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;
+ 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(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();
+ }
+ }
+
+ return false;
}
-bool IOInterruptEventSource::checkForWork()
+void
+IOInterruptEventSource::normalInterruptOccurred
+(void */*refcon*/, IOService */*prov*/, int /*source*/)
{
- unsigned int cacheProdCount = producerCount;
- int numInts = cacheProdCount - consumerCount;
- IOInterruptEventAction intAction = (IOInterruptEventAction) action;
+ bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+
+ IOStatisticsInterrupt();
+ producerCount++;
- if (numInts > 0) {
+ if (trace) {
+ IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
+ }
- IOTimeStampLatency();
- IOTimeTypeStampS(IOINTES_CLIENT);
- IOTimeStampConstant(IODBG_INTES(IOINTES_ACTION),
- (unsigned int) intAction, (unsigned int) owner);
- (*intAction)(owner, this, numInts);
- IOTimeTypeStampE(IOINTES_CLIENT);
+ 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);
+ }
+ }
- consumerCount = cacheProdCount;
- if (autoDisable && !explicitDisable)
- enable();
- }
- else if (numInts < 0) {
- IOTimeStampLatency();
- IOTimeTypeStampS(IOINTES_CLIENT);
- IOTimeStampConstant(IODBG_INTES(IOINTES_ACTION),
- (unsigned int) intAction, (unsigned int) owner);
- (*intAction)(owner, this, -numInts);
- IOTimeTypeStampE(IOINTES_CLIENT);
-
- consumerCount = cacheProdCount;
- if (autoDisable && !explicitDisable)
- enable();
- }
+ signalWorkAvailable();
- return false;
+ if (trace) {
+ IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
+ }
}
-void IOInterruptEventSource::normalInterruptOccurred
- (void */*refcon*/, IOService */*prov*/, int /*source*/)
+void
+IOInterruptEventSource::disableInterruptOccurred
+(void */*refcon*/, IOService *prov, int source)
{
-IOTimeTypeStampS(IOINTES_INTCTXT);
-IOTimeStampLatency();
+ bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
- producerCount++;
+ prov->disableInterrupt(source); /* disable the interrupt */
-IOTimeTypeStampS(IOINTES_SEMA);
- signalWorkAvailable();
-IOTimeTypeStampE(IOINTES_SEMA);
+ IOStatisticsInterrupt();
+ producerCount++;
-IOTimeTypeStampE(IOINTES_INTCTXT);
-}
+ if (trace) {
+ IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
+ }
-void IOInterruptEventSource::disableInterruptOccurred
- (void */*refcon*/, IOService *prov, int source)
-{
-IOTimeTypeStampS(IOINTES_INTCTXT);
-IOTimeStampLatency();
+ 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);
+ }
+ }
- prov->disableInterrupt(source); /* disable the interrupt */
+ signalWorkAvailable();
- producerCount++;
+ if (trace) {
+ IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
+ }
+}
-IOTimeTypeStampS(IOINTES_SEMA);
- signalWorkAvailable();
-IOTimeTypeStampE(IOINTES_SEMA);
+void
+IOInterruptEventSource::interruptOccurred
+(void *_refcon, IOService *prov, int source)
+{
+ if (autoDisable && prov) {
+ disableInterruptOccurred(_refcon, prov, source);
+ } else {
+ normalInterruptOccurred(_refcon, prov, source);
+ }
+}
-IOTimeTypeStampE(IOINTES_INTCTXT);
+IOReturn
+IOInterruptEventSource::warmCPU
+(uint64_t abstime)
+{
+ return ml_interrupt_prewarm(abstime);
+}
+
+void
+IOInterruptEventSource::enablePrimaryInterruptTimestamp(bool enable)
+{
+ if (reserved->statistics) {
+ reserved->statistics->enablePrimaryTimestamp = enable;
+ }
}
-void IOInterruptEventSource::interruptOccurred
- (void *refcon, IOService *prov, int source)
+uint64_t
+IOInterruptEventSource::getPrimaryInterruptTimestamp()
{
- if (autoDisable && prov)
- disableInterruptOccurred(refcon, prov, source);
- else
- normalInterruptOccurred(refcon, prov, source);
+ if (reserved->statistics && reserved->statistics->enablePrimaryTimestamp) {
+ return reserved->statistics->primaryTimestamp;
+ }
+ return -1ULL;
}
projects / apple / xnu.git / blobdiff