cpuevent.hh revision 8229
12651Ssaidi@eecs.umich.edu/* 22651Ssaidi@eecs.umich.edu * Copyright (c) 2006 The Regents of The University of Michigan 32651Ssaidi@eecs.umich.edu * All rights reserved. 42651Ssaidi@eecs.umich.edu * 52651Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 62651Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 72651Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 82651Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 92651Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 102651Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 112651Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 122651Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 132651Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 142651Ssaidi@eecs.umich.edu * this software without specific prior written permission. 152651Ssaidi@eecs.umich.edu * 162651Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172651Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182651Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192651Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202651Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212651Ssaidi@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222651Ssaidi@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232651Ssaidi@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242651Ssaidi@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252651Ssaidi@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262651Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272651Ssaidi@eecs.umich.edu * 282651Ssaidi@eecs.umich.edu * Authors: Ali Saidi 292651Ssaidi@eecs.umich.edu */ 302651Ssaidi@eecs.umich.edu 312651Ssaidi@eecs.umich.edu#ifndef __CPU_CPUEVENT_HH__ 322651Ssaidi@eecs.umich.edu#define __CPU_CPUEVENT_HH__ 332651Ssaidi@eecs.umich.edu 342651Ssaidi@eecs.umich.edu#include <vector> 358229Snate@binkert.org 362651Ssaidi@eecs.umich.edu#include "sim/eventq.hh" 372651Ssaidi@eecs.umich.edu 382680Sktlim@umich.educlass ThreadContext; 392651Ssaidi@eecs.umich.edu 403886Sbinkertn@umich.edu/** 413886Sbinkertn@umich.edu * This class creates a global list of events that need a pointer to a 423886Sbinkertn@umich.edu * thread context. When a switchover takes place the events can be 433886Sbinkertn@umich.edu * migrated to the new thread context, otherwise you could have a wake 443886Sbinkertn@umich.edu * timer interrupt go off on a switched out cpu or other unfortunate 453886Sbinkertn@umich.edu * events. This object MUST be dynamically allocated to avoid it being 463886Sbinkertn@umich.edu * deleted after a cpu switch happens. 473886Sbinkertn@umich.edu */ 482651Ssaidi@eecs.umich.educlass CpuEvent : public Event 492651Ssaidi@eecs.umich.edu{ 503530Sgblack@eecs.umich.edu protected: 512651Ssaidi@eecs.umich.edu /** type of global list of cpu events. */ 522651Ssaidi@eecs.umich.edu typedef std::vector<CpuEvent *> CpuEventList; 532651Ssaidi@eecs.umich.edu 542651Ssaidi@eecs.umich.edu /** Static list of cpu events that is searched every time a cpu switch 552651Ssaidi@eecs.umich.edu * happens. */ 562651Ssaidi@eecs.umich.edu static CpuEventList cpuEventList; 572651Ssaidi@eecs.umich.edu 582680Sktlim@umich.edu /** The thread context that is switched to the new cpus. */ 592680Sktlim@umich.edu ThreadContext *tc; 602651Ssaidi@eecs.umich.edu 612651Ssaidi@eecs.umich.edu public: 625606Snate@binkert.org CpuEvent(ThreadContext *_tc, Priority p = Default_Pri) 635606Snate@binkert.org : Event(p), tc(_tc) 642651Ssaidi@eecs.umich.edu { cpuEventList.push_back(this); } 652651Ssaidi@eecs.umich.edu 662651Ssaidi@eecs.umich.edu /** delete the cpu event from the global list. */ 672651Ssaidi@eecs.umich.edu ~CpuEvent(); 682651Ssaidi@eecs.umich.edu 692680Sktlim@umich.edu /** Update all events switching old tc to new tc. 702680Sktlim@umich.edu * @param oldTc the old thread context we are switching from 712680Sktlim@umich.edu * @param newTc the new thread context we are switching to. 722651Ssaidi@eecs.umich.edu */ 732680Sktlim@umich.edu static void replaceThreadContext(ThreadContext *oldTc, 742680Sktlim@umich.edu ThreadContext *newTc); 754000Ssaidi@eecs.umich.edu ThreadContext* getTC() { return tc; } 762651Ssaidi@eecs.umich.edu}; 772651Ssaidi@eecs.umich.edu 782680Sktlim@umich.edutemplate <class T, void (T::* F)(ThreadContext *tc)> 792651Ssaidi@eecs.umich.educlass CpuEventWrapper : public CpuEvent 802651Ssaidi@eecs.umich.edu{ 812651Ssaidi@eecs.umich.edu private: 822651Ssaidi@eecs.umich.edu T *object; 832651Ssaidi@eecs.umich.edu 842651Ssaidi@eecs.umich.edu public: 855606Snate@binkert.org CpuEventWrapper(T *obj, ThreadContext *_tc, Priority p = Default_Pri) 865606Snate@binkert.org : CpuEvent(_tc, p), object(obj) 872651Ssaidi@eecs.umich.edu { } 882680Sktlim@umich.edu void process() { (object->*F)(tc); } 892651Ssaidi@eecs.umich.edu}; 902651Ssaidi@eecs.umich.edu 912651Ssaidi@eecs.umich.edu#endif // __CPU_CPUEVENT_HH__ 922651Ssaidi@eecs.umich.edu 93