simple_thread.cc revision 8809
12SN/A/* 22188SN/A * Copyright (c) 2001-2006 The Regents of The University of Michigan 32SN/A * All rights reserved. 42SN/A * 52SN/A * Redistribution and use in source and binary forms, with or without 62SN/A * modification, are permitted provided that the following conditions are 72SN/A * met: redistributions of source code must retain the above copyright 82SN/A * notice, this list of conditions and the following disclaimer; 92SN/A * redistributions in binary form must reproduce the above copyright 102SN/A * notice, this list of conditions and the following disclaimer in the 112SN/A * documentation and/or other materials provided with the distribution; 122SN/A * neither the name of the copyright holders nor the names of its 132SN/A * contributors may be used to endorse or promote products derived from 142SN/A * this software without specific prior written permission. 152SN/A * 162SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665SN/A * 282665SN/A * Authors: Steve Reinhardt 292665SN/A * Nathan Binkert 302665SN/A * Lisa Hsu 312665SN/A * Kevin Lim 322SN/A */ 332SN/A 342SN/A#include <string> 352SN/A 362465SN/A#include "arch/isa_traits.hh" 373565Sgblack@eecs.umich.edu#include "arch/kernel_stats.hh" 385529Snate@binkert.org#include "arch/stacktrace.hh" 398777Sgblack@eecs.umich.edu#include "arch/utility.hh" 401917SN/A#include "base/callback.hh" 411070SN/A#include "base/cprintf.hh" 421917SN/A#include "base/output.hh" 432188SN/A#include "base/trace.hh" 448777Sgblack@eecs.umich.edu#include "config/the_isa.hh" 458777Sgblack@eecs.umich.edu#include "cpu/base.hh" 461917SN/A#include "cpu/profile.hh" 472290SN/A#include "cpu/quiesce_event.hh" 488777Sgblack@eecs.umich.edu#include "cpu/simple_thread.hh" 498777Sgblack@eecs.umich.edu#include "cpu/thread_context.hh" 508706Sandreas.hansson@arm.com#include "mem/fs_translating_port_proxy.hh" 518799Sgblack@eecs.umich.edu#include "mem/se_translating_port_proxy.hh" 528809Sgblack@eecs.umich.edu#include "params/BaseCPU.hh" 538793Sgblack@eecs.umich.edu#include "sim/full_system.hh" 548777Sgblack@eecs.umich.edu#include "sim/process.hh" 551070SN/A#include "sim/serialize.hh" 561917SN/A#include "sim/sim_exit.hh" 572519SN/A#include "sim/system.hh" 582SN/A 592SN/Ausing namespace std; 602SN/A 612SN/A// constructor 628766Sgblack@eecs.umich.eduSimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, Process *_process, 638766Sgblack@eecs.umich.edu TheISA::TLB *_itb, TheISA::TLB *_dtb) 648809Sgblack@eecs.umich.edu : ThreadState(_cpu, _thread_num, _process), itb(_itb), dtb(_dtb) 658766Sgblack@eecs.umich.edu{ 668766Sgblack@eecs.umich.edu clearArchRegs(); 678766Sgblack@eecs.umich.edu tc = new ProxyThreadContext<SimpleThread>(this); 688766Sgblack@eecs.umich.edu} 692683Sktlim@umich.eduSimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys, 706022Sgblack@eecs.umich.edu TheISA::TLB *_itb, TheISA::TLB *_dtb, 712683Sktlim@umich.edu bool use_kernel_stats) 728809Sgblack@eecs.umich.edu : ThreadState(_cpu, _thread_num, NULL), system(_sys), itb(_itb), dtb(_dtb) 732SN/A{ 742683Sktlim@umich.edu tc = new ProxyThreadContext<SimpleThread>(this); 752190SN/A 762680SN/A quiesceEvent = new EndQuiesceEvent(tc); 772290SN/A 786316Sgblack@eecs.umich.edu clearArchRegs(); 791917SN/A 808735Sandreas.hanson@arm.com if (baseCpu->params()->profile) { 811982SN/A profile = new FunctionProfile(system->kernelSymtab); 821917SN/A Callback *cb = 832683Sktlim@umich.edu new MakeCallback<SimpleThread, 842683Sktlim@umich.edu &SimpleThread::dumpFuncProfile>(this); 851917SN/A registerExitCallback(cb); 861917SN/A } 871917SN/A 881917SN/A // let's fill with a dummy node for now so we don't get a segfault 891917SN/A // on the first cycle when there's no node available. 901917SN/A static ProfileNode dummyNode; 911917SN/A profileNode = &dummyNode; 921917SN/A profilePC = 3; 932521SN/A 945482Snate@binkert.org if (use_kernel_stats) 953548Sgblack@eecs.umich.edu kernelStats = new TheISA::Kernel::Statistics(system); 962SN/A} 972862Sktlim@umich.edu 982864Sktlim@umich.eduSimpleThread::SimpleThread() 996331Sgblack@eecs.umich.edu : ThreadState(NULL, -1, NULL) 1002190SN/A{ 1012683Sktlim@umich.edu tc = new ProxyThreadContext<SimpleThread>(this); 1022190SN/A} 1032190SN/A 1042683Sktlim@umich.eduSimpleThread::~SimpleThread() 1051070SN/A{ 1062680SN/A delete tc; 1071070SN/A} 1081070SN/A 1091917SN/Avoid 1102683Sktlim@umich.eduSimpleThread::takeOverFrom(ThreadContext *oldContext) 111180SN/A{ 112180SN/A // some things should already be set up 1138793Sgblack@eecs.umich.edu if (FullSystem) 1148793Sgblack@eecs.umich.edu assert(system == oldContext->getSystemPtr()); 1152235SN/A assert(process == oldContext->getProcessPtr()); 116180SN/A 1172862Sktlim@umich.edu copyState(oldContext); 1188793Sgblack@eecs.umich.edu if (FullSystem) { 1198793Sgblack@eecs.umich.edu EndQuiesceEvent *quiesce = oldContext->getQuiesceEvent(); 1208793Sgblack@eecs.umich.edu if (quiesce) { 1218793Sgblack@eecs.umich.edu // Point the quiesce event's TC at this TC so that it wakes up 1228793Sgblack@eecs.umich.edu // the proper CPU. 1238793Sgblack@eecs.umich.edu quiesce->tc = tc; 1248793Sgblack@eecs.umich.edu } 1258793Sgblack@eecs.umich.edu if (quiesceEvent) { 1268793Sgblack@eecs.umich.edu quiesceEvent->tc = tc; 1278793Sgblack@eecs.umich.edu } 1288793Sgblack@eecs.umich.edu 1298793Sgblack@eecs.umich.edu TheISA::Kernel::Statistics *stats = oldContext->getKernelStats(); 1308793Sgblack@eecs.umich.edu if (stats) { 1318793Sgblack@eecs.umich.edu kernelStats = stats; 1328793Sgblack@eecs.umich.edu } 1332313SN/A } 134180SN/A 135180SN/A storeCondFailures = 0; 136180SN/A 1376029Ssteve.reinhardt@amd.com oldContext->setStatus(ThreadContext::Halted); 138180SN/A} 139180SN/A 1402SN/Avoid 1412864Sktlim@umich.eduSimpleThread::copyTC(ThreadContext *context) 1422864Sktlim@umich.edu{ 1432864Sktlim@umich.edu copyState(context); 1442864Sktlim@umich.edu 1458793Sgblack@eecs.umich.edu if (FullSystem) { 1468793Sgblack@eecs.umich.edu EndQuiesceEvent *quiesce = context->getQuiesceEvent(); 1478793Sgblack@eecs.umich.edu if (quiesce) { 1488793Sgblack@eecs.umich.edu quiesceEvent = quiesce; 1498793Sgblack@eecs.umich.edu } 1508793Sgblack@eecs.umich.edu TheISA::Kernel::Statistics *stats = context->getKernelStats(); 1518793Sgblack@eecs.umich.edu if (stats) { 1528793Sgblack@eecs.umich.edu kernelStats = stats; 1538793Sgblack@eecs.umich.edu } 1542864Sktlim@umich.edu } 1552864Sktlim@umich.edu} 1562864Sktlim@umich.edu 1572864Sktlim@umich.eduvoid 1582862Sktlim@umich.eduSimpleThread::copyState(ThreadContext *oldContext) 1592862Sktlim@umich.edu{ 1602862Sktlim@umich.edu // copy over functional state 1612862Sktlim@umich.edu _status = oldContext->status(); 1622862Sktlim@umich.edu copyArchRegs(oldContext); 1638793Sgblack@eecs.umich.edu if (FullSystem) 1648793Sgblack@eecs.umich.edu funcExeInst = oldContext->readFuncExeInst(); 1655714Shsul@eecs.umich.edu 1665715Shsul@eecs.umich.edu _threadId = oldContext->threadId(); 1675714Shsul@eecs.umich.edu _contextId = oldContext->contextId(); 1682862Sktlim@umich.edu} 1692862Sktlim@umich.edu 1702862Sktlim@umich.eduvoid 1712683Sktlim@umich.eduSimpleThread::serialize(ostream &os) 172217SN/A{ 1732862Sktlim@umich.edu ThreadState::serialize(os); 1746315Sgblack@eecs.umich.edu SERIALIZE_ARRAY(floatRegs.i, TheISA::NumFloatRegs); 1756316Sgblack@eecs.umich.edu SERIALIZE_ARRAY(intRegs, TheISA::NumIntRegs); 1767720Sgblack@eecs.umich.edu _pcState.serialize(os); 177223SN/A // thread_num and cpu_id are deterministic from the config 1786677SBrad.Beckmann@amd.com 1796677SBrad.Beckmann@amd.com // 1806677SBrad.Beckmann@amd.com // Now must serialize all the ISA dependent state 1816677SBrad.Beckmann@amd.com // 1828735Sandreas.hanson@arm.com isa.serialize(baseCpu, os); 183217SN/A} 184217SN/A 185217SN/A 186217SN/Avoid 1872683Sktlim@umich.eduSimpleThread::unserialize(Checkpoint *cp, const std::string §ion) 188217SN/A{ 1892862Sktlim@umich.edu ThreadState::unserialize(cp, section); 1906315Sgblack@eecs.umich.edu UNSERIALIZE_ARRAY(floatRegs.i, TheISA::NumFloatRegs); 1916316Sgblack@eecs.umich.edu UNSERIALIZE_ARRAY(intRegs, TheISA::NumIntRegs); 1927720Sgblack@eecs.umich.edu _pcState.unserialize(cp, section); 193223SN/A // thread_num and cpu_id are deterministic from the config 1946677SBrad.Beckmann@amd.com 1956677SBrad.Beckmann@amd.com // 1966677SBrad.Beckmann@amd.com // Now must unserialize all the ISA dependent state 1976677SBrad.Beckmann@amd.com // 1988735Sandreas.hanson@arm.com isa.unserialize(baseCpu, cp, section); 199217SN/A} 200217SN/A 2012683Sktlim@umich.eduvoid 2022683Sktlim@umich.eduSimpleThread::dumpFuncProfile() 2032683Sktlim@umich.edu{ 2048735Sandreas.hanson@arm.com std::ostream *os = simout.create(csprintf("profile.%s.dat", 2058735Sandreas.hanson@arm.com baseCpu->name())); 2062683Sktlim@umich.edu profile->dump(tc, *os); 2072683Sktlim@umich.edu} 208217SN/A 209217SN/Avoid 2102683Sktlim@umich.eduSimpleThread::activate(int delay) 2112SN/A{ 2122680SN/A if (status() == ThreadContext::Active) 2132SN/A return; 2142SN/A 2157823Ssteve.reinhardt@amd.com lastActivate = curTick(); 2162188SN/A 2174400Srdreslin@umich.edu// if (status() == ThreadContext::Unallocated) { 2185715Shsul@eecs.umich.edu// cpu->activateWhenReady(_threadId); 2195543Ssaidi@eecs.umich.edu// return; 2204400Srdreslin@umich.edu// } 2212290SN/A 2222680SN/A _status = ThreadContext::Active; 2232290SN/A 2242290SN/A // status() == Suspended 2258735Sandreas.hanson@arm.com baseCpu->activateContext(_threadId, delay); 226393SN/A} 227393SN/A 228393SN/Avoid 2292683Sktlim@umich.eduSimpleThread::suspend() 230393SN/A{ 2312680SN/A if (status() == ThreadContext::Suspended) 232393SN/A return; 233393SN/A 2347823Ssteve.reinhardt@amd.com lastActivate = curTick(); 2357823Ssteve.reinhardt@amd.com lastSuspend = curTick(); 2362680SN/A _status = ThreadContext::Suspended; 2378735Sandreas.hanson@arm.com baseCpu->suspendContext(_threadId); 2382SN/A} 2392SN/A 240393SN/A 241393SN/Avoid 2422683Sktlim@umich.eduSimpleThread::halt() 243393SN/A{ 2442680SN/A if (status() == ThreadContext::Halted) 245393SN/A return; 246393SN/A 2472680SN/A _status = ThreadContext::Halted; 2488735Sandreas.hanson@arm.com baseCpu->haltContext(_threadId); 249393SN/A} 250393SN/A 251393SN/A 252393SN/Avoid 2532683Sktlim@umich.eduSimpleThread::regStats(const string &name) 2542SN/A{ 2558793Sgblack@eecs.umich.edu if (FullSystem && kernelStats) 2562341SN/A kernelStats->regStats(name + ".kern"); 2572SN/A} 258716SN/A 259716SN/Avoid 2602683Sktlim@umich.eduSimpleThread::copyArchRegs(ThreadContext *src_tc) 2612190SN/A{ 2622680SN/A TheISA::copyRegs(src_tc, tc); 2632190SN/A} 2642190SN/A 265