thread_state.cc revision 9101:d39368c6f502
113038Sgabeblack@google.com/* 213038Sgabeblack@google.com * Copyright (c) 2006 The Regents of The University of Michigan 313038Sgabeblack@google.com * All rights reserved. 413038Sgabeblack@google.com * 513038Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 613038Sgabeblack@google.com * modification, are permitted provided that the following conditions are 713038Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 813038Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 913038Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1013038Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1113038Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1213038Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1313038Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1413038Sgabeblack@google.com * this software without specific prior written permission. 1513038Sgabeblack@google.com * 1613038Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1713038Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1813038Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1913038Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2013038Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2113038Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2213038Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2313038Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2413038Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2513038Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2613038Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2713038Sgabeblack@google.com * 2813038Sgabeblack@google.com * Authors: Kevin Lim 2913038Sgabeblack@google.com */ 3013038Sgabeblack@google.com 3113038Sgabeblack@google.com#include "arch/kernel_stats.hh" 3213038Sgabeblack@google.com#include "base/output.hh" 3313038Sgabeblack@google.com#include "cpu/base.hh" 3413038Sgabeblack@google.com#include "cpu/profile.hh" 3513038Sgabeblack@google.com#include "cpu/quiesce_event.hh" 3613038Sgabeblack@google.com#include "cpu/thread_state.hh" 3713038Sgabeblack@google.com#include "mem/fs_translating_port_proxy.hh" 3813038Sgabeblack@google.com#include "mem/port.hh" 3913038Sgabeblack@google.com#include "mem/port_proxy.hh" 4013323Sgabeblack@google.com#include "mem/se_translating_port_proxy.hh" 4113323Sgabeblack@google.com#include "sim/full_system.hh" 4213038Sgabeblack@google.com#include "sim/serialize.hh" 4313038Sgabeblack@google.com#include "sim/system.hh" 4413038Sgabeblack@google.com 4513038Sgabeblack@google.comThreadState::ThreadState(BaseCPU *cpu, ThreadID _tid, Process *_process) 4613038Sgabeblack@google.com : numInst(0), numOp(0), numLoad(0), _status(ThreadContext::Halted), 4713038Sgabeblack@google.com baseCpu(cpu), _threadId(_tid), lastActivate(0), lastSuspend(0), 4813038Sgabeblack@google.com profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL), 4913323Sgabeblack@google.com kernelStats(NULL), process(_process), physProxy(NULL), virtProxy(NULL), 5013323Sgabeblack@google.com proxy(NULL), funcExeInst(0), storeCondFailures(0) 5113038Sgabeblack@google.com{ 5213038Sgabeblack@google.com} 5313038Sgabeblack@google.com 5413038Sgabeblack@google.comThreadState::~ThreadState() 5513038Sgabeblack@google.com{ 5613038Sgabeblack@google.com if (physProxy != NULL) 5713038Sgabeblack@google.com delete physProxy; 5813038Sgabeblack@google.com if (virtProxy != NULL) 59 delete virtProxy; 60 if (proxy != NULL) 61 delete proxy; 62} 63 64void 65ThreadState::serialize(std::ostream &os) 66{ 67 SERIALIZE_ENUM(_status); 68 // thread_num and cpu_id are deterministic from the config 69 SERIALIZE_SCALAR(funcExeInst); 70 71 if (!FullSystem) 72 return; 73 74 Tick quiesceEndTick = 0; 75 if (quiesceEvent->scheduled()) 76 quiesceEndTick = quiesceEvent->when(); 77 SERIALIZE_SCALAR(quiesceEndTick); 78 if (kernelStats) 79 kernelStats->serialize(os); 80} 81 82void 83ThreadState::unserialize(Checkpoint *cp, const std::string §ion) 84{ 85 86 UNSERIALIZE_ENUM(_status); 87 // thread_num and cpu_id are deterministic from the config 88 UNSERIALIZE_SCALAR(funcExeInst); 89 90 if (!FullSystem) 91 return; 92 93 Tick quiesceEndTick; 94 UNSERIALIZE_SCALAR(quiesceEndTick); 95 if (quiesceEndTick) 96 baseCpu->schedule(quiesceEvent, quiesceEndTick); 97 if (kernelStats) 98 kernelStats->unserialize(cp, section); 99} 100 101void 102ThreadState::initMemProxies(ThreadContext *tc) 103{ 104 // The port proxies only refer to the data port on the CPU side 105 // and can safely be done at init() time even if the CPU is not 106 // connected, i.e. when restoring from a checkpoint and later 107 // switching the CPU in. 108 if (FullSystem) { 109 assert(physProxy == NULL); 110 // This cannot be done in the constructor as the thread state 111 // itself is created in the base cpu constructor and the 112 // getDataPort is a virtual function 113 physProxy = new PortProxy(baseCpu->getDataPort()); 114 115 assert(virtProxy == NULL); 116 virtProxy = new FSTranslatingPortProxy(tc); 117 } else { 118 assert(proxy == NULL); 119 proxy = new SETranslatingPortProxy(baseCpu->getDataPort(), 120 process, 121 SETranslatingPortProxy::NextPage); 122 } 123} 124 125PortProxy & 126ThreadState::getPhysProxy() 127{ 128 assert(FullSystem); 129 assert(physProxy != NULL); 130 return *physProxy; 131} 132 133FSTranslatingPortProxy & 134ThreadState::getVirtProxy() 135{ 136 assert(FullSystem); 137 assert(virtProxy != NULL); 138 return *virtProxy; 139} 140 141SETranslatingPortProxy & 142ThreadState::getMemProxy() 143{ 144 assert(!FullSystem); 145 assert(proxy != NULL); 146 return *proxy; 147} 148 149void 150ThreadState::profileClear() 151{ 152 if (profile) 153 profile->clear(); 154} 155 156void 157ThreadState::profileSample() 158{ 159 if (profile) 160 profile->sample(profileNode, profilePC); 161} 162