X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..c6bf4f310a33a9262d455ea4d3f0630b1255e3fe:/iokit/Kernel/IOFilterInterruptEventSource.cpp
diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp
index 0869ec7de..5e3371a10 100644
--- a/iokit/Kernel/IOFilterInterruptEventSource.cpp
+++ b/iokit/Kernel/IOFilterInterruptEventSource.cpp
@@ -1,66 +1,62 @@
/*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2010 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) 1999 Apple Computer, Inc. All rights reserved.
-HISTORY
- 1999-4-15 Godfrey van der Linden(gvdl)
- Created.
-*/
#include <IOKit/IOFilterInterruptEventSource.h>
#include <IOKit/IOService.h>
+#include <IOKit/IOKitDebug.h>
#include <IOKit/IOTimeStamp.h>
#include <IOKit/IOWorkLoop.h>
+#include <IOKit/IOInterruptAccountingPrivate.h>
+#include <libkern/Block.h>
+
+#if IOKITSTATS
-#if KDEBUG
+#define IOStatisticsInitializeCounter() \
+do { \
+ IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsFilterInterruptEventSourceCounter); \
+} while (0)
-#define IOTimeTypeStampS(t) \
-do { \
- IOTimeStampStart(IODBG_INTES(t), \
- (unsigned int) this, (unsigned int) owner); \
-} while(0)
+#define IOStatisticsInterrupt() \
+do { \
+ IOStatistics::countInterrupt(IOEventSource::reserved->counter); \
+} while (0)
-#define IOTimeTypeStampE(t) \
-do { \
- IOTimeStampEnd(IODBG_INTES(t), \
- (unsigned int) this, (unsigned int) owner); \
-} while(0)
+#else
-#define IOTimeStampLatency() \
-do { \
- IOTimeStampEnd(IODBG_INTES(IOINTES_LAT), \
- (unsigned int) this, (unsigned int) owner); \
-} while(0)
+#define IOStatisticsInitializeCounter()
+#define IOStatisticsInterrupt()
-#else /* !KDEBUG */
-#define IOTimeTypeStampS(t)
-#define IOTimeTypeStampE(t)
-#define IOTimeStampLatency()
-#endif /* KDEBUG */
+#endif /* IOKITSTATS */
#define super IOInterruptEventSource
OSDefineMetaClassAndStructors
- (IOFilterInterruptEventSource, IOInterruptEventSource)
+(IOFilterInterruptEventSource, IOInterruptEventSource)
OSMetaClassDefineReservedUnused(IOFilterInterruptEventSource, 0);
OSMetaClassDefineReservedUnused(IOFilterInterruptEventSource, 1);
OSMetaClassDefineReservedUnused(IOFilterInterruptEventSource, 2);
@@ -73,115 +69,245 @@ OSMetaClassDefineReservedUnused(IOFilterInterruptEventSource, 7);
/*
* Implement the call throughs for the private protection conversion
*/
-bool IOFilterInterruptEventSource::init(OSObject *inOwner,
- Action inAction = 0,
- IOService *inProvider = 0,
- int inIntIndex = 0)
+bool
+IOFilterInterruptEventSource::init(OSObject *inOwner,
+ Action inAction,
+ IOService *inProvider,
+ int inIntIndex)
{
- return false;
+ return false;
}
IOInterruptEventSource *
IOFilterInterruptEventSource::interruptEventSource(OSObject *inOwner,
- Action inAction,
- IOService *inProvider,
- int inIntIndex)
+ Action inAction,
+ IOService *inProvider,
+ int inIntIndex)
{
- return 0;
+ return NULL;
}
bool
IOFilterInterruptEventSource::init(OSObject *inOwner,
- Action inAction,
- Filter inFilterAction,
- IOService *inProvider,
- int inIntIndex = 0)
+ Action inAction,
+ Filter inFilterAction,
+ IOService *inProvider,
+ int inIntIndex)
{
- if ( !super::init(inOwner, inAction, inProvider, inIntIndex) )
- return false;
+ if (!super::init(inOwner, inAction, inProvider, inIntIndex)) {
+ return false;
+ }
- if (!inFilterAction)
- return false;
+ if (!inFilterAction) {
+ return false;
+ }
- filterAction = inFilterAction;
- return true;
-}
+ filterAction = inFilterAction;
-IOFilterInterruptEventSource *IOFilterInterruptEventSource
-::filterInterruptEventSource(OSObject *inOwner,
- Action inAction,
- Filter inFilterAction,
- IOService *inProvider,
- int inIntIndex = 0)
-{
- IOFilterInterruptEventSource *me = new IOFilterInterruptEventSource;
+ IOStatisticsInitializeCounter();
- if (me
- && !me->init(inOwner, inAction, inFilterAction, inProvider, inIntIndex)) {
- me->free();
- return 0;
- }
-
- return me;
+ return true;
}
-void IOFilterInterruptEventSource::signalInterrupt()
+IOFilterInterruptEventSource *
+IOFilterInterruptEventSource
+::filterInterruptEventSource(OSObject *inOwner,
+ Action inAction,
+ Filter inFilterAction,
+ IOService *inProvider,
+ int inIntIndex)
{
-IOTimeStampLatency();
+ IOFilterInterruptEventSource *me = new IOFilterInterruptEventSource;
- producerCount++;
+ if (me
+ && !me->init(inOwner, inAction, inFilterAction, inProvider, inIntIndex)) {
+ me->release();
+ return NULL;
+ }
-IOTimeTypeStampS(IOINTES_SEMA);
- signalWorkAvailable();
-IOTimeTypeStampE(IOINTES_SEMA);
+ return me;
}
-IOFilterInterruptEventSource::Filter
-IOFilterInterruptEventSource::getFilterAction() const
+IOFilterInterruptEventSource *
+IOFilterInterruptEventSource
+::filterInterruptEventSource(OSObject *inOwner,
+ IOService *inProvider,
+ int inIntIndex,
+ ActionBlock inAction,
+ FilterBlock inFilterAction)
{
- return filterAction;
+ IOFilterInterruptEventSource *me = new IOFilterInterruptEventSource;
+
+ FilterBlock filter = Block_copy(inFilterAction);
+ if (!filter) {
+ OSSafeReleaseNULL(me);
+ return NULL;
+ }
+
+ if (me
+ && !me->init(inOwner, (Action) NULL, (Filter) filter, inProvider, inIntIndex)) {
+ me->release();
+ Block_release(filter);
+ return NULL;
+ }
+ me->flags |= kFilterBlock;
+ me->setActionBlock((IOEventSource::ActionBlock) inAction);
+
+ return me;
}
+void
+IOFilterInterruptEventSource::free( void )
+{
+ if ((kFilterBlock & flags) && filterActionBlock) {
+ Block_release(filterActionBlock);
+ }
+ super::free();
+}
-void IOFilterInterruptEventSource::normalInterruptOccurred
- (void */*refcon*/, IOService */*prov*/, int /*source*/)
+void
+IOFilterInterruptEventSource::signalInterrupt()
{
- bool filterRes;
+ bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
-IOTimeTypeStampS(IOINTES_INTCTXT);
+ IOStatisticsInterrupt();
+ producerCount++;
-IOTimeTypeStampS(IOINTES_INTFLTR);
- IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
- (unsigned int) filterAction, (unsigned int) owner);
- filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
+ if (trace) {
+ IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
+ }
- if (filterRes)
- signalInterrupt();
+ signalWorkAvailable();
-IOTimeTypeStampE(IOINTES_INTCTXT);
+ if (trace) {
+ IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner));
+ }
}
-void IOFilterInterruptEventSource::disableInterruptOccurred
- (void */*refcon*/, IOService *prov, int source)
-{
- bool filterRes;
-IOTimeTypeStampS(IOINTES_INTCTXT);
+IOFilterInterruptEventSource::Filter
+IOFilterInterruptEventSource::getFilterAction() const
+{
+ if (kFilterBlock & flags) {
+ return NULL;
+ }
+ return filterAction;
+}
-IOTimeTypeStampS(IOINTES_INTFLTR);
- IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
- (unsigned int) filterAction, (unsigned int) owner);
- filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
+IOFilterInterruptEventSource::FilterBlock
+IOFilterInterruptEventSource::getFilterActionBlock() const
+{
+ if (kFilterBlock & flags) {
+ return filterActionBlock;
+ }
+ return NULL;
+}
- if (filterRes) {
- prov->disableInterrupt(source); /* disable the interrupt */
+void
+IOFilterInterruptEventSource::normalInterruptOccurred
+(void */*refcon*/, IOService */*prov*/, int /*source*/)
+{
+ bool filterRes;
+ uint64_t startTime = 0;
+ uint64_t endTime = 0;
+ bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+
+ if (trace) {
+ IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+ VM_KERNEL_UNSLIDE(filterAction), VM_KERNEL_ADDRHIDE(owner), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
+ }
+
+ if (IOInterruptEventSource::reserved->statistics) {
+ if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)
+ || IOInterruptEventSource::reserved->statistics->enablePrimaryTimestamp) {
+ startTime = mach_absolute_time();
+ }
+ if (IOInterruptEventSource::reserved->statistics->enablePrimaryTimestamp) {
+ IOInterruptEventSource::reserved->statistics->primaryTimestamp = startTime;
+ }
+ }
+
+ // Call the filter.
+ if (kFilterBlock & flags) {
+ filterRes = (filterActionBlock)(this);
+ } else {
+ filterRes = (*filterAction)(owner, this);
+ }
+
+ if (IOInterruptEventSource::reserved->statistics) {
+ if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelCountIndex)) {
+ IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelCountIndex], 1);
+ }
+
+ if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) {
+ endTime = mach_absolute_time();
+ IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelTimeIndex], endTime - startTime);
+ }
+ }
+
+ if (trace) {
+ IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+ VM_KERNEL_ADDRHIDE(filterAction), VM_KERNEL_ADDRHIDE(owner),
+ VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
+ }
+
+ if (filterRes) {
+ signalInterrupt();
+ }
+}
- signalInterrupt();
- }
-IOTimeTypeStampE(IOINTES_INTCTXT);
+void
+IOFilterInterruptEventSource::disableInterruptOccurred
+(void */*refcon*/, IOService *prov, int source)
+{
+ bool filterRes;
+ uint64_t startTime = 0;
+ uint64_t endTime = 0;
+ bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+
+ if (trace) {
+ IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+ VM_KERNEL_UNSLIDE(filterAction), VM_KERNEL_ADDRHIDE(owner), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
+ }
+
+ if (IOInterruptEventSource::reserved->statistics) {
+ if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)
+ || IOInterruptEventSource::reserved->statistics->enablePrimaryTimestamp) {
+ startTime = mach_absolute_time();
+ }
+ if (IOInterruptEventSource::reserved->statistics->enablePrimaryTimestamp) {
+ IOInterruptEventSource::reserved->statistics->primaryTimestamp = startTime;
+ }
+ }
+
+ // Call the filter.
+ if (kFilterBlock & flags) {
+ filterRes = (filterActionBlock)(this);
+ } else {
+ filterRes = (*filterAction)(owner, this);
+ }
+
+ if (IOInterruptEventSource::reserved->statistics) {
+ if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelCountIndex)) {
+ IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelCountIndex], 1);
+ }
+
+ if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) {
+ endTime = mach_absolute_time();
+ IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelTimeIndex], endTime - startTime);
+ }
+ }
+
+ if (trace) {
+ IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+ VM_KERNEL_UNSLIDE(filterAction), VM_KERNEL_ADDRHIDE(owner), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(workLoop));
+ }
+
+ if (filterRes) {
+ prov->disableInterrupt(source); /* disable the interrupt */
+ signalInterrupt();
+ }
}