thread_state.cc revision 3280
1/* 2 * Copyright (c) 2006 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Kevin Lim 29 */ 30 31#include "base/output.hh" 32#include "cpu/profile.hh" 33#include "cpu/thread_state.hh" 34#include "sim/serialize.hh" 35 36#if FULL_SYSTEM 37#include "cpu/quiesce_event.hh" 38#include "kern/kernel_stats.hh" 39#endif 40 41#if FULL_SYSTEM 42ThreadState::ThreadState(int _cpuId, int _tid) 43 : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0), 44 profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL), 45 microPC(0), nextMicroPC(1), funcExeInst(0), storeCondFailures(0) 46#else 47ThreadState::ThreadState(int _cpuId, int _tid, Process *_process, 48 short _asid, MemObject *mem) 49 : cpuId(_cpuId), tid(_tid), lastActivate(0), lastSuspend(0), 50 process(_process), asid(_asid), 51 microPC(0), nextMicroPC(1), funcExeInst(0), storeCondFailures(0) 52#endif 53{ 54 numInst = 0; 55 numLoad = 0; 56} 57 58void 59ThreadState::serialize(std::ostream &os) 60{ 61 SERIALIZE_ENUM(_status); 62 // thread_num and cpu_id are deterministic from the config 63 SERIALIZE_SCALAR(funcExeInst); 64 SERIALIZE_SCALAR(inst); 65 66#if FULL_SYSTEM 67 Tick quiesceEndTick = 0; 68 if (quiesceEvent->scheduled()) 69 quiesceEndTick = quiesceEvent->when(); 70 SERIALIZE_SCALAR(quiesceEndTick); 71 if (kernelStats) 72 kernelStats->serialize(os); 73#endif 74} 75 76void 77ThreadState::unserialize(Checkpoint *cp, const std::string §ion) 78{ 79 80 UNSERIALIZE_ENUM(_status); 81 // thread_num and cpu_id are deterministic from the config 82 UNSERIALIZE_SCALAR(funcExeInst); 83 UNSERIALIZE_SCALAR(inst); 84 85#if FULL_SYSTEM 86 Tick quiesceEndTick; 87 UNSERIALIZE_SCALAR(quiesceEndTick); 88 if (quiesceEndTick) 89 quiesceEvent->schedule(quiesceEndTick); 90 if (kernelStats) 91 kernelStats->unserialize(cp, section); 92#endif 93} 94 95#if FULL_SYSTEM 96 97void 98ThreadState::profileClear() 99{ 100 if (profile) 101 profile->clear(); 102} 103 104void 105ThreadState::profileSample() 106{ 107 if (profile) 108 profile->sample(profileNode, profilePC); 109} 110 111#endif 112