thread_state.hh revision 8777
12329SN/A/* 22329SN/A * Copyright (c) 2006 The Regents of The University of Michigan 32329SN/A * All rights reserved. 42329SN/A * 52329SN/A * Redistribution and use in source and binary forms, with or without 62329SN/A * modification, are permitted provided that the following conditions are 72329SN/A * met: redistributions of source code must retain the above copyright 82329SN/A * notice, this list of conditions and the following disclaimer; 92329SN/A * redistributions in binary form must reproduce the above copyright 102329SN/A * notice, this list of conditions and the following disclaimer in the 112329SN/A * documentation and/or other materials provided with the distribution; 122329SN/A * neither the name of the copyright holders nor the names of its 132329SN/A * contributors may be used to endorse or promote products derived from 142329SN/A * this software without specific prior written permission. 152329SN/A * 162329SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172329SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 182329SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 192329SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 202329SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212329SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222329SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 232329SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 242329SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 252329SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 262329SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272689Sktlim@umich.edu * 282689Sktlim@umich.edu * Authors: Kevin Lim 292329SN/A */ 302292SN/A 312292SN/A#ifndef __CPU_O3_THREAD_STATE_HH__ 322292SN/A#define __CPU_O3_THREAD_STATE_HH__ 332292SN/A 342362SN/A#include "base/callback.hh" 352362SN/A#include "base/output.hh" 362680Sktlim@umich.edu#include "cpu/thread_context.hh" 372292SN/A#include "cpu/thread_state.hh" 382362SN/A#include "sim/sim_exit.hh" 392292SN/A 408777Sgblack@eecs.umich.educlass EndQuiesceEvent; 412292SN/Aclass Event; 428777Sgblack@eecs.umich.educlass FunctionalMemory; 438777Sgblack@eecs.umich.educlass FunctionProfile; 442292SN/Aclass Process; 452292SN/Aclass ProfileNode; 462292SN/A 472329SN/A/** 482329SN/A * Class that has various thread state, such as the status, the 492329SN/A * current instruction being processed, whether or not the thread has 502680Sktlim@umich.edu * a trap pending or is being externally updated, the ThreadContext 512680Sktlim@umich.edu * pointer, etc. It also handles anything related to a specific 522329SN/A * thread's process, such as syscalls and checking valid addresses. 532329SN/A */ 542292SN/Atemplate <class Impl> 552292SN/Astruct O3ThreadState : public ThreadState { 562680Sktlim@umich.edu typedef ThreadContext::Status Status; 572733Sktlim@umich.edu typedef typename Impl::O3CPU O3CPU; 582292SN/A 592292SN/A private: 602348SN/A /** Pointer to the CPU. */ 612733Sktlim@umich.edu O3CPU *cpu; 622292SN/A public: 632348SN/A /** Whether or not the thread is currently in syscall mode, and 642348SN/A * thus able to be externally updated without squashing. 652348SN/A */ 662292SN/A bool inSyscall; 672292SN/A 682348SN/A /** Whether or not the thread is currently waiting on a trap, and 692348SN/A * thus able to be externally updated without squashing. 702348SN/A */ 712292SN/A bool trapPending; 722292SN/A 738766Sgblack@eecs.umich.edu O3ThreadState(O3CPU *_cpu, int _thread_num, Process *_process) 748766Sgblack@eecs.umich.edu : ThreadState(_cpu, _thread_num, _process), 752362SN/A cpu(_cpu), inSyscall(0), trapPending(0) 762362SN/A { 778766Sgblack@eecs.umich.edu#if FULL_SYSTEM 785529Snate@binkert.org if (cpu->params()->profile) { 795529Snate@binkert.org profile = new FunctionProfile(cpu->params()->system->kernelSymtab); 802362SN/A Callback *cb = 812362SN/A new MakeCallback<O3ThreadState, 822362SN/A &O3ThreadState::dumpFuncProfile>(this); 832362SN/A registerExitCallback(cb); 842362SN/A } 852362SN/A 862362SN/A // let's fill with a dummy node for now so we don't get a segfault 872362SN/A // on the first cycle when there's no node available. 882362SN/A static ProfileNode dummyNode; 892362SN/A profileNode = &dummyNode; 902362SN/A profilePC = 3; 918766Sgblack@eecs.umich.edu#endif 922362SN/A } 932292SN/A 942680Sktlim@umich.edu /** Pointer to the ThreadContext of this thread. */ 952680Sktlim@umich.edu ThreadContext *tc; 962292SN/A 972680Sktlim@umich.edu /** Returns a pointer to the TC of this thread. */ 982680Sktlim@umich.edu ThreadContext *getTC() { return tc; } 992292SN/A 1002348SN/A /** Handles the syscall. */ 1012680Sktlim@umich.edu void syscall(int64_t callnum) { process->syscall(callnum, tc); } 1022362SN/A 1032362SN/A void dumpFuncProfile() 1042362SN/A { 1052362SN/A std::ostream *os = simout.create(csprintf("profile.%s.dat", cpu->name())); 1063126Sktlim@umich.edu profile->dump(tc, *os); 1072362SN/A } 1082292SN/A}; 1092292SN/A 1102292SN/A#endif // __CPU_O3_THREAD_STATE_HH__ 111