simple_thread.cc revision 10319
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" 5310319SAndreas.Sandberg@ARM.com#include "sim/faults.hh" 548793Sgblack@eecs.umich.edu#include "sim/full_system.hh" 558777Sgblack@eecs.umich.edu#include "sim/process.hh" 561070SN/A#include "sim/serialize.hh" 571917SN/A#include "sim/sim_exit.hh" 582519SN/A#include "sim/system.hh" 592SN/A 602SN/Ausing namespace std; 612SN/A 622SN/A// constructor 638820Sgblack@eecs.umich.eduSimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys, 648820Sgblack@eecs.umich.edu Process *_process, TheISA::TLB *_itb, 659384SAndreas.Sandberg@arm.com TheISA::TLB *_dtb, TheISA::ISA *_isa) 669384SAndreas.Sandberg@arm.com : ThreadState(_cpu, _thread_num, _process), isa(_isa), system(_sys), 679384SAndreas.Sandberg@arm.com itb(_itb), dtb(_dtb) 688766Sgblack@eecs.umich.edu{ 698766Sgblack@eecs.umich.edu clearArchRegs(); 708766Sgblack@eecs.umich.edu tc = new ProxyThreadContext<SimpleThread>(this); 718766Sgblack@eecs.umich.edu} 729377Sgblack@eecs.umich.edu 732683Sktlim@umich.eduSimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys, 746022Sgblack@eecs.umich.edu TheISA::TLB *_itb, TheISA::TLB *_dtb, 759384SAndreas.Sandberg@arm.com TheISA::ISA *_isa, bool use_kernel_stats) 769384SAndreas.Sandberg@arm.com : ThreadState(_cpu, _thread_num, NULL), isa(_isa), system(_sys), itb(_itb), 779384SAndreas.Sandberg@arm.com dtb(_dtb) 782SN/A{ 792683Sktlim@umich.edu tc = new ProxyThreadContext<SimpleThread>(this); 802190SN/A 812680SN/A quiesceEvent = new EndQuiesceEvent(tc); 822290SN/A 836316Sgblack@eecs.umich.edu clearArchRegs(); 841917SN/A 858735Sandreas.hanson@arm.com if (baseCpu->params()->profile) { 861982SN/A profile = new FunctionProfile(system->kernelSymtab); 871917SN/A Callback *cb = 882683Sktlim@umich.edu new MakeCallback<SimpleThread, 892683Sktlim@umich.edu &SimpleThread::dumpFuncProfile>(this); 901917SN/A registerExitCallback(cb); 911917SN/A } 921917SN/A 931917SN/A // let's fill with a dummy node for now so we don't get a segfault 941917SN/A // on the first cycle when there's no node available. 951917SN/A static ProfileNode dummyNode; 961917SN/A profileNode = &dummyNode; 971917SN/A profilePC = 3; 982521SN/A 995482Snate@binkert.org if (use_kernel_stats) 1003548Sgblack@eecs.umich.edu kernelStats = new TheISA::Kernel::Statistics(system); 1012SN/A} 1022862Sktlim@umich.edu 1032683Sktlim@umich.eduSimpleThread::~SimpleThread() 1041070SN/A{ 1052680SN/A delete tc; 1061070SN/A} 1071070SN/A 1081917SN/Avoid 1092683Sktlim@umich.eduSimpleThread::takeOverFrom(ThreadContext *oldContext) 110180SN/A{ 1119441SAndreas.Sandberg@ARM.com ::takeOverFrom(*tc, *oldContext); 1129478Snilay@cs.wisc.edu decoder.takeOverFrom(oldContext->getDecoderPtr()); 113180SN/A 1149441SAndreas.Sandberg@ARM.com kernelStats = oldContext->getKernelStats(); 1159441SAndreas.Sandberg@ARM.com funcExeInst = oldContext->readFuncExeInst(); 116180SN/A storeCondFailures = 0; 1172864Sktlim@umich.edu} 1182864Sktlim@umich.edu 1192864Sktlim@umich.eduvoid 1202862Sktlim@umich.eduSimpleThread::copyState(ThreadContext *oldContext) 1212862Sktlim@umich.edu{ 1222862Sktlim@umich.edu // copy over functional state 1232862Sktlim@umich.edu _status = oldContext->status(); 1242862Sktlim@umich.edu copyArchRegs(oldContext); 1258793Sgblack@eecs.umich.edu if (FullSystem) 1268793Sgblack@eecs.umich.edu funcExeInst = oldContext->readFuncExeInst(); 1275714Shsul@eecs.umich.edu 1285715Shsul@eecs.umich.edu _threadId = oldContext->threadId(); 1295714Shsul@eecs.umich.edu _contextId = oldContext->contextId(); 1302862Sktlim@umich.edu} 1312862Sktlim@umich.edu 1322862Sktlim@umich.eduvoid 1332683Sktlim@umich.eduSimpleThread::serialize(ostream &os) 134217SN/A{ 1352862Sktlim@umich.edu ThreadState::serialize(os); 1369428SAndreas.Sandberg@ARM.com ::serialize(*tc, os); 137217SN/A} 138217SN/A 139217SN/A 140217SN/Avoid 1412683Sktlim@umich.eduSimpleThread::unserialize(Checkpoint *cp, const std::string §ion) 142217SN/A{ 1432862Sktlim@umich.edu ThreadState::unserialize(cp, section); 1449428SAndreas.Sandberg@ARM.com ::unserialize(*tc, cp, section); 145217SN/A} 146217SN/A 1472683Sktlim@umich.eduvoid 1489461Snilay@cs.wisc.eduSimpleThread::startup() 1499461Snilay@cs.wisc.edu{ 1509461Snilay@cs.wisc.edu isa->startup(tc); 1519461Snilay@cs.wisc.edu} 1529461Snilay@cs.wisc.edu 1539461Snilay@cs.wisc.eduvoid 1542683Sktlim@umich.eduSimpleThread::dumpFuncProfile() 1552683Sktlim@umich.edu{ 1568735Sandreas.hanson@arm.com std::ostream *os = simout.create(csprintf("profile.%s.dat", 1578735Sandreas.hanson@arm.com baseCpu->name())); 1582683Sktlim@umich.edu profile->dump(tc, *os); 1592683Sktlim@umich.edu} 160217SN/A 161217SN/Avoid 1629180Sandreas.hansson@arm.comSimpleThread::activate(Cycles delay) 1632SN/A{ 1642680SN/A if (status() == ThreadContext::Active) 1652SN/A return; 1662SN/A 1677823Ssteve.reinhardt@amd.com lastActivate = curTick(); 1682188SN/A 1694400Srdreslin@umich.edu// if (status() == ThreadContext::Unallocated) { 1705715Shsul@eecs.umich.edu// cpu->activateWhenReady(_threadId); 1715543Ssaidi@eecs.umich.edu// return; 1724400Srdreslin@umich.edu// } 1732290SN/A 1742680SN/A _status = ThreadContext::Active; 1752290SN/A 1762290SN/A // status() == Suspended 1778735Sandreas.hanson@arm.com baseCpu->activateContext(_threadId, delay); 178393SN/A} 179393SN/A 180393SN/Avoid 1812683Sktlim@umich.eduSimpleThread::suspend() 182393SN/A{ 1832680SN/A if (status() == ThreadContext::Suspended) 184393SN/A return; 185393SN/A 1867823Ssteve.reinhardt@amd.com lastActivate = curTick(); 1877823Ssteve.reinhardt@amd.com lastSuspend = curTick(); 1882680SN/A _status = ThreadContext::Suspended; 1898735Sandreas.hanson@arm.com baseCpu->suspendContext(_threadId); 1902SN/A} 1912SN/A 192393SN/A 193393SN/Avoid 1942683Sktlim@umich.eduSimpleThread::halt() 195393SN/A{ 1962680SN/A if (status() == ThreadContext::Halted) 197393SN/A return; 198393SN/A 1992680SN/A _status = ThreadContext::Halted; 2008735Sandreas.hanson@arm.com baseCpu->haltContext(_threadId); 201393SN/A} 202393SN/A 203393SN/A 204393SN/Avoid 2052683Sktlim@umich.eduSimpleThread::regStats(const string &name) 2062SN/A{ 2078793Sgblack@eecs.umich.edu if (FullSystem && kernelStats) 2082341SN/A kernelStats->regStats(name + ".kern"); 2092SN/A} 210716SN/A 211716SN/Avoid 2122683Sktlim@umich.eduSimpleThread::copyArchRegs(ThreadContext *src_tc) 2132190SN/A{ 2142680SN/A TheISA::copyRegs(src_tc, tc); 2152190SN/A} 2162190SN/A 21710319SAndreas.Sandberg@ARM.com// The following methods are defined in src/arch/alpha/ev5.cc for 21810319SAndreas.Sandberg@ARM.com// Alpha. 21910319SAndreas.Sandberg@ARM.com#if THE_ISA != ALPHA_ISA 22010319SAndreas.Sandberg@ARM.comFault 22110319SAndreas.Sandberg@ARM.comSimpleThread::hwrei() 22210319SAndreas.Sandberg@ARM.com{ 22310319SAndreas.Sandberg@ARM.com return NoFault; 22410319SAndreas.Sandberg@ARM.com} 22510319SAndreas.Sandberg@ARM.com 22610319SAndreas.Sandberg@ARM.combool 22710319SAndreas.Sandberg@ARM.comSimpleThread::simPalCheck(int palFunc) 22810319SAndreas.Sandberg@ARM.com{ 22910319SAndreas.Sandberg@ARM.com return true; 23010319SAndreas.Sandberg@ARM.com} 23110319SAndreas.Sandberg@ARM.com#endif 232