X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..c18c124eaa464aaaa5549e99e5a70fc9cbb50944:/iokit/Kernel/IOFilterInterruptEventSource.cpp diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp index 0869ec7de..83b6ed6e0 100644 --- a/iokit/Kernel/IOFilterInterruptEventSource.cpp +++ b/iokit/Kernel/IOFilterInterruptEventSource.cpp @@ -1,61 +1,56 @@ /* - * 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 + +#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 @@ -74,9 +69,9 @@ 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) + Action inAction, + IOService *inProvider, + int inIntIndex) { return false; } @@ -95,7 +90,7 @@ IOFilterInterruptEventSource::init(OSObject *inOwner, Action inAction, Filter inFilterAction, IOService *inProvider, - int inIntIndex = 0) + int inIntIndex) { if ( !super::init(inOwner, inAction, inProvider, inIntIndex) ) return false; @@ -104,6 +99,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner, return false; filterAction = inFilterAction; + + IOStatisticsInitializeCounter(); + return true; } @@ -112,13 +110,13 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource Action inAction, Filter inFilterAction, IOService *inProvider, - int inIntIndex = 0) + int inIntIndex) { IOFilterInterruptEventSource *me = new IOFilterInterruptEventSource; if (me && !me->init(inOwner, inAction, inFilterAction, inProvider, inIntIndex)) { - me->free(); + me->release(); return 0; } @@ -127,13 +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); + } @@ -149,39 +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); }