X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8ad349bb6ed4a0be06e34c92be0d98b92e078db4..c18c124eaa464aaaa5549e99e5a70fc9cbb50944:/iokit/Kernel/IOFilterInterruptEventSource.cpp diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp index 130a5d443..83b6ed6e0 100644 --- a/iokit/Kernel/IOFilterInterruptEventSource.cpp +++ b/iokit/Kernel/IOFilterInterruptEventSource.cpp @@ -1,69 +1,56 @@ /* - * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 1998-2010 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ + * @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, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and + * 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and * limitations under the License. - * - * @APPLE_LICENSE_OSREFERENCE_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 + +#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 @@ -112,6 +99,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner, return false; filterAction = inFilterAction; + + IOStatisticsInitializeCounter(); + return true; } @@ -135,13 +125,19 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource void IOFilterInterruptEventSource::signalInterrupt() { -IOTimeStampLatency(); - + bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false; + + IOStatisticsInterrupt(); producerCount++; - -IOTimeTypeStampS(IOINTES_SEMA); + + if (trace) + IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner); + signalWorkAvailable(); -IOTimeTypeStampE(IOINTES_SEMA); + + if (trace) + IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner); + } @@ -157,39 +153,81 @@ IOFilterInterruptEventSource::getFilterAction() const 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); + 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), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop); + + if (IOInterruptEventSource::reserved->statistics) { + if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) { + startTime = mach_absolute_time(); + } + } + + // Call the filter. filterRes = (*filterAction)(owner, this); -IOTimeTypeStampE(IOINTES_INTFLTR); + 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), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop); + if (filterRes) signalInterrupt(); - -IOTimeTypeStampE(IOINTES_INTCTXT); } void IOFilterInterruptEventSource::disableInterruptOccurred (void */*refcon*/, IOService *prov, int source) { - bool filterRes; + 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), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop); + + if (IOInterruptEventSource::reserved->statistics) { + if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelTimeIndex)) { + startTime = mach_absolute_time(); + } + } + + // Call the filter. + filterRes = (*filterAction)(owner, this); -IOTimeTypeStampS(IOINTES_INTCTXT); + if (IOInterruptEventSource::reserved->statistics) { + if (IA_GET_STATISTIC_ENABLED(kInterruptAccountingFirstLevelCountIndex)) { + IA_ADD_VALUE(&IOInterruptEventSource::reserved->statistics->interruptStatistics[kInterruptAccountingFirstLevelCountIndex], 1); + } -IOTimeTypeStampS(IOINTES_INTFLTR); - IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER), - (unsigned int) filterAction, (unsigned int) owner); - filterRes = (*filterAction)(owner, this); -IOTimeTypeStampE(IOINTES_INTFLTR); + 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), (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop); + if (filterRes) { prov->disableInterrupt(source); /* disable the interrupt */ - signalInterrupt(); } -IOTimeTypeStampE(IOINTES_INTCTXT); }