simple_thread.cc revision 9428
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 628820Sgblack@eecs.umich.eduSimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys, 638820Sgblack@eecs.umich.edu Process *_process, TheISA::TLB *_itb, 649384SAndreas.Sandberg@arm.com TheISA::TLB *_dtb, TheISA::ISA *_isa) 659384SAndreas.Sandberg@arm.com : ThreadState(_cpu, _thread_num, _process), isa(_isa), system(_sys), 669384SAndreas.Sandberg@arm.com itb(_itb), dtb(_dtb) 678766Sgblack@eecs.umich.edu{ 688766Sgblack@eecs.umich.edu clearArchRegs(); 698766Sgblack@eecs.umich.edu tc = new ProxyThreadContext<SimpleThread>(this); 708766Sgblack@eecs.umich.edu} 719377Sgblack@eecs.umich.edu 722683Sktlim@umich.eduSimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys, 736022Sgblack@eecs.umich.edu TheISA::TLB *_itb, TheISA::TLB *_dtb, 749384SAndreas.Sandberg@arm.com TheISA::ISA *_isa, bool use_kernel_stats) 759384SAndreas.Sandberg@arm.com : ThreadState(_cpu, _thread_num, NULL), isa(_isa), system(_sys), itb(_itb), 769384SAndreas.Sandberg@arm.com dtb(_dtb) 772SN/A{ 782683Sktlim@umich.edu tc = new ProxyThreadContext<SimpleThread>(this); 792190SN/A 802680SN/A quiesceEvent = new EndQuiesceEvent(tc); 812290SN/A 826316Sgblack@eecs.umich.edu clearArchRegs(); 831917SN/A 848735Sandreas.hanson@arm.com if (baseCpu->params()->profile) { 851982SN/A profile = new FunctionProfile(system->kernelSymtab); 861917SN/A Callback *cb = 872683Sktlim@umich.edu new MakeCallback<SimpleThread, 882683Sktlim@umich.edu &SimpleThread::dumpFuncProfile>(this); 891917SN/A registerExitCallback(cb); 901917SN/A } 911917SN/A 921917SN/A // let's fill with a dummy node for now so we don't get a segfault 931917SN/A // on the first cycle when there's no node available. 941917SN/A static ProfileNode dummyNode; 951917SN/A profileNode = &dummyNode; 961917SN/A profilePC = 3; 972521SN/A 985482Snate@binkert.org if (use_kernel_stats) 993548Sgblack@eecs.umich.edu kernelStats = new TheISA::Kernel::Statistics(system); 1002SN/A} 1012862Sktlim@umich.edu 1022683Sktlim@umich.eduSimpleThread::~SimpleThread() 1031070SN/A{ 1042680SN/A delete tc; 1051070SN/A} 1061070SN/A 1071917SN/Avoid 1082683Sktlim@umich.eduSimpleThread::takeOverFrom(ThreadContext *oldContext) 109180SN/A{ 110180SN/A // some things should already be set up 1118793Sgblack@eecs.umich.edu if (FullSystem) 1128793Sgblack@eecs.umich.edu assert(system == oldContext->getSystemPtr()); 1132235SN/A assert(process == oldContext->getProcessPtr()); 114180SN/A 1152862Sktlim@umich.edu copyState(oldContext); 1168793Sgblack@eecs.umich.edu if (FullSystem) { 1178793Sgblack@eecs.umich.edu EndQuiesceEvent *quiesce = oldContext->getQuiesceEvent(); 1188793Sgblack@eecs.umich.edu if (quiesce) { 1198793Sgblack@eecs.umich.edu // Point the quiesce event's TC at this TC so that it wakes up 1208793Sgblack@eecs.umich.edu // the proper CPU. 1218793Sgblack@eecs.umich.edu quiesce->tc = tc; 1228793Sgblack@eecs.umich.edu } 1238793Sgblack@eecs.umich.edu if (quiesceEvent) { 1248793Sgblack@eecs.umich.edu quiesceEvent->tc = tc; 1258793Sgblack@eecs.umich.edu } 1268793Sgblack@eecs.umich.edu 1278793Sgblack@eecs.umich.edu TheISA::Kernel::Statistics *stats = oldContext->getKernelStats(); 1288793Sgblack@eecs.umich.edu if (stats) { 1298793Sgblack@eecs.umich.edu kernelStats = stats; 1308793Sgblack@eecs.umich.edu } 1312313SN/A } 132180SN/A 133180SN/A storeCondFailures = 0; 134180SN/A 1356029Ssteve.reinhardt@amd.com oldContext->setStatus(ThreadContext::Halted); 136180SN/A} 137180SN/A 1382SN/Avoid 1392864Sktlim@umich.eduSimpleThread::copyTC(ThreadContext *context) 1402864Sktlim@umich.edu{ 1412864Sktlim@umich.edu copyState(context); 1422864Sktlim@umich.edu 1438793Sgblack@eecs.umich.edu if (FullSystem) { 1448793Sgblack@eecs.umich.edu EndQuiesceEvent *quiesce = context->getQuiesceEvent(); 1458793Sgblack@eecs.umich.edu if (quiesce) { 1468793Sgblack@eecs.umich.edu quiesceEvent = quiesce; 1478793Sgblack@eecs.umich.edu } 1488793Sgblack@eecs.umich.edu TheISA::Kernel::Statistics *stats = context->getKernelStats(); 1498793Sgblack@eecs.umich.edu if (stats) { 1508793Sgblack@eecs.umich.edu kernelStats = stats; 1518793Sgblack@eecs.umich.edu } 1522864Sktlim@umich.edu } 1532864Sktlim@umich.edu} 1542864Sktlim@umich.edu 1552864Sktlim@umich.eduvoid 1562862Sktlim@umich.eduSimpleThread::copyState(ThreadContext *oldContext) 1572862Sktlim@umich.edu{ 1582862Sktlim@umich.edu // copy over functional state 1592862Sktlim@umich.edu _status = oldContext->status(); 1602862Sktlim@umich.edu copyArchRegs(oldContext); 1618793Sgblack@eecs.umich.edu if (FullSystem) 1628793Sgblack@eecs.umich.edu funcExeInst = oldContext->readFuncExeInst(); 1635714Shsul@eecs.umich.edu 1645715Shsul@eecs.umich.edu _threadId = oldContext->threadId(); 1655714Shsul@eecs.umich.edu _contextId = oldContext->contextId(); 1662862Sktlim@umich.edu} 1672862Sktlim@umich.edu 1682862Sktlim@umich.eduvoid 1692683Sktlim@umich.eduSimpleThread::serialize(ostream &os) 170217SN/A{ 1712862Sktlim@umich.edu ThreadState::serialize(os); 1729428SAndreas.Sandberg@ARM.com ::serialize(*tc, os); 173217SN/A} 174217SN/A 175217SN/A 176217SN/Avoid 1772683Sktlim@umich.eduSimpleThread::unserialize(Checkpoint *cp, const std::string §ion) 178217SN/A{ 1792862Sktlim@umich.edu ThreadState::unserialize(cp, section); 1809428SAndreas.Sandberg@ARM.com ::unserialize(*tc, cp, section); 181217SN/A} 182217SN/A 1832683Sktlim@umich.eduvoid 1842683Sktlim@umich.eduSimpleThread::dumpFuncProfile() 1852683Sktlim@umich.edu{ 1868735Sandreas.hanson@arm.com std::ostream *os = simout.create(csprintf("profile.%s.dat", 1878735Sandreas.hanson@arm.com baseCpu->name())); 1882683Sktlim@umich.edu profile->dump(tc, *os); 1892683Sktlim@umich.edu} 190217SN/A 191217SN/Avoid 1929180Sandreas.hansson@arm.comSimpleThread::activate(Cycles delay) 1932SN/A{ 1942680SN/A if (status() == ThreadContext::Active) 1952SN/A return; 1962SN/A 1977823Ssteve.reinhardt@amd.com lastActivate = curTick(); 1982188SN/A 1994400Srdreslin@umich.edu// if (status() == ThreadContext::Unallocated) { 2005715Shsul@eecs.umich.edu// cpu->activateWhenReady(_threadId); 2015543Ssaidi@eecs.umich.edu// return; 2024400Srdreslin@umich.edu// } 2032290SN/A 2042680SN/A _status = ThreadContext::Active; 2052290SN/A 2062290SN/A // status() == Suspended 2078735Sandreas.hanson@arm.com baseCpu->activateContext(_threadId, delay); 208393SN/A} 209393SN/A 210393SN/Avoid 2112683Sktlim@umich.eduSimpleThread::suspend() 212393SN/A{ 2132680SN/A if (status() == ThreadContext::Suspended) 214393SN/A return; 215393SN/A 2167823Ssteve.reinhardt@amd.com lastActivate = curTick(); 2177823Ssteve.reinhardt@amd.com lastSuspend = curTick(); 2182680SN/A _status = ThreadContext::Suspended; 2198735Sandreas.hanson@arm.com baseCpu->suspendContext(_threadId); 2202SN/A} 2212SN/A 222393SN/A 223393SN/Avoid 2242683Sktlim@umich.eduSimpleThread::halt() 225393SN/A{ 2262680SN/A if (status() == ThreadContext::Halted) 227393SN/A return; 228393SN/A 2292680SN/A _status = ThreadContext::Halted; 2308735Sandreas.hanson@arm.com baseCpu->haltContext(_threadId); 231393SN/A} 232393SN/A 233393SN/A 234393SN/Avoid 2352683Sktlim@umich.eduSimpleThread::regStats(const string &name) 2362SN/A{ 2378793Sgblack@eecs.umich.edu if (FullSystem && kernelStats) 2382341SN/A kernelStats->regStats(name + ".kern"); 2392SN/A} 240716SN/A 241716SN/Avoid 2422683Sktlim@umich.eduSimpleThread::copyArchRegs(ThreadContext *src_tc) 2432190SN/A{ 2442680SN/A TheISA::copyRegs(src_tc, tc); 2452190SN/A} 2462190SN/A 247