X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/378393581903b274cb7a4d18e0d978071a6b592d..e8c3f78193f1895ea514044358b93b1add9322f3:/iokit/Kernel/IOFilterInterruptEventSource.cpp diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp index eb818ccec..f3c61367b 100644 --- a/iokit/Kernel/IOFilterInterruptEventSource.cpp +++ b/iokit/Kernel/IOFilterInterruptEventSource.cpp @@ -1,61 +1,57 @@ /* - * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 1998-2010 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_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 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. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * 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. + * 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_LICENSE_HEADER_END@ + * @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 #include +#include #include #include +#include +#include + +#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 @@ -104,6 +100,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner, return false; filterAction = inFilterAction; + + IOStatisticsInitializeCounter(); + return true; } @@ -125,63 +124,152 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource return me; } -void IOFilterInterruptEventSource::signalInterrupt() + +IOFilterInterruptEventSource *IOFilterInterruptEventSource +::filterInterruptEventSource(OSObject *inOwner, + IOService *inProvider, + int inIntIndex, + ActionBlock inAction, + FilterBlock inFilterAction) { -IOTimeStampLatency(); + IOFilterInterruptEventSource *me = new IOFilterInterruptEventSource; - producerCount++; + FilterBlock filter = Block_copy(inFilterAction); + if (!filter) return 0; + + if (me + && !me->init(inOwner, (Action) NULL, (Filter) filter, inProvider, inIntIndex)) { + me->release(); + Block_release(filter); + return 0; + } + me->flags |= kFilterBlock; + me->setActionBlock((IOEventSource::ActionBlock) inAction); + + return me; +} + + +void IOFilterInterruptEventSource::free( void ) +{ + if ((kFilterBlock & flags) && filterActionBlock) Block_release(filterActionBlock); + + super::free(); +} -IOTimeTypeStampS(IOINTES_SEMA); +void IOFilterInterruptEventSource::signalInterrupt() +{ + bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false; + + IOStatisticsInterrupt(); + producerCount++; + + if (trace) + IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner)); + signalWorkAvailable(); -IOTimeTypeStampE(IOINTES_SEMA); + + if (trace) + IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), VM_KERNEL_ADDRHIDE(this), VM_KERNEL_ADDRHIDE(owner)); + } IOFilterInterruptEventSource::Filter IOFilterInterruptEventSource::getFilterAction() const { + if (kFilterBlock & flags) return NULL; return filterAction; } - - +IOFilterInterruptEventSource::FilterBlock +IOFilterInterruptEventSource::getFilterActionBlock() const +{ + if (kFilterBlock & flags) return filterActionBlock; + return (NULL); +} void IOFilterInterruptEventSource::normalInterruptOccurred (void */*refcon*/, IOService */*prov*/, int /*source*/) { - bool filterRes; - -IOTimeTypeStampS(IOINTES_INTCTXT); - -IOTimeTypeStampS(IOINTES_INTFLTR); - IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER), - (unsigned int) filterAction, (unsigned int) owner); - filterRes = (*filterAction)(owner, this); -IOTimeTypeStampE(IOINTES_INTFLTR); - + 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)) { + startTime = mach_absolute_time(); + } + } + + // 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(); - -IOTimeTypeStampE(IOINTES_INTCTXT); } void IOFilterInterruptEventSource::disableInterruptOccurred (void */*refcon*/, IOService *prov, int source) { - bool filterRes; - -IOTimeTypeStampS(IOINTES_INTCTXT); - -IOTimeTypeStampS(IOINTES_INTFLTR); - IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER), - (unsigned int) filterAction, (unsigned int) owner); - filterRes = (*filterAction)(owner, this); -IOTimeTypeStampE(IOINTES_INTFLTR); + 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)) { + startTime = mach_absolute_time(); + } + } + + // 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(); } -IOTimeTypeStampE(IOINTES_INTCTXT); }