thread_state.hh revision 8777:dd43f1c9fa0a
112391Sjason@lowepower.com/*
212391Sjason@lowepower.com * Copyright (c) 2006 The Regents of The University of Michigan
312391Sjason@lowepower.com * All rights reserved.
412391Sjason@lowepower.com *
512391Sjason@lowepower.com * Redistribution and use in source and binary forms, with or without
612391Sjason@lowepower.com * modification, are permitted provided that the following conditions are
712391Sjason@lowepower.com * met: redistributions of source code must retain the above copyright
812391Sjason@lowepower.com * notice, this list of conditions and the following disclaimer;
912391Sjason@lowepower.com * redistributions in binary form must reproduce the above copyright
1012391Sjason@lowepower.com * notice, this list of conditions and the following disclaimer in the
1112391Sjason@lowepower.com * documentation and/or other materials provided with the distribution;
1212391Sjason@lowepower.com * neither the name of the copyright holders nor the names of its
1312391Sjason@lowepower.com * contributors may be used to endorse or promote products derived from
1412391Sjason@lowepower.com * this software without specific prior written permission.
1512391Sjason@lowepower.com *
1612391Sjason@lowepower.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1712391Sjason@lowepower.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1812391Sjason@lowepower.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1912391Sjason@lowepower.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
2012391Sjason@lowepower.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
2112391Sjason@lowepower.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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2512391Sjason@lowepower.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
2612391Sjason@lowepower.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2712391Sjason@lowepower.com *
2812391Sjason@lowepower.com * Authors: Kevin Lim
2912391Sjason@lowepower.com */
3012391Sjason@lowepower.com
3112391Sjason@lowepower.com#ifndef __CPU_O3_THREAD_STATE_HH__
3212391Sjason@lowepower.com#define __CPU_O3_THREAD_STATE_HH__
3312391Sjason@lowepower.com
3412391Sjason@lowepower.com#include "base/callback.hh"
3512391Sjason@lowepower.com#include "base/output.hh"
3612391Sjason@lowepower.com#include "cpu/thread_context.hh"
3712391Sjason@lowepower.com#include "cpu/thread_state.hh"
3812391Sjason@lowepower.com#include "sim/sim_exit.hh"
3912391Sjason@lowepower.com
4012391Sjason@lowepower.comclass EndQuiesceEvent;
4112391Sjason@lowepower.comclass Event;
4212391Sjason@lowepower.comclass FunctionalMemory;
4312391Sjason@lowepower.comclass FunctionProfile;
4412391Sjason@lowepower.comclass Process;
4512391Sjason@lowepower.comclass ProfileNode;
4612391Sjason@lowepower.com
4712391Sjason@lowepower.com/**
4812391Sjason@lowepower.com * Class that has various thread state, such as the status, the
4912391Sjason@lowepower.com * current instruction being processed, whether or not the thread has
5012391Sjason@lowepower.com * a trap pending or is being externally updated, the ThreadContext
5112391Sjason@lowepower.com * pointer, etc.  It also handles anything related to a specific
5212391Sjason@lowepower.com * thread's process, such as syscalls and checking valid addresses.
5312391Sjason@lowepower.com */
5412391Sjason@lowepower.comtemplate <class Impl>
5512391Sjason@lowepower.comstruct O3ThreadState : public ThreadState {
5612391Sjason@lowepower.com    typedef ThreadContext::Status Status;
5712391Sjason@lowepower.com    typedef typename Impl::O3CPU O3CPU;
5812391Sjason@lowepower.com
5912391Sjason@lowepower.com  private:
6012391Sjason@lowepower.com    /** Pointer to the CPU. */
6112391Sjason@lowepower.com    O3CPU *cpu;
6212391Sjason@lowepower.com  public:
6312391Sjason@lowepower.com    /** Whether or not the thread is currently in syscall mode, and
6412391Sjason@lowepower.com     * thus able to be externally updated without squashing.
6512391Sjason@lowepower.com     */
6612391Sjason@lowepower.com    bool inSyscall;
6712391Sjason@lowepower.com
6812391Sjason@lowepower.com    /** Whether or not the thread is currently waiting on a trap, and
6912391Sjason@lowepower.com     * thus able to be externally updated without squashing.
7012391Sjason@lowepower.com     */
7112391Sjason@lowepower.com    bool trapPending;
7212391Sjason@lowepower.com
7312391Sjason@lowepower.com    O3ThreadState(O3CPU *_cpu, int _thread_num, Process *_process)
7412391Sjason@lowepower.com        : ThreadState(_cpu, _thread_num, _process),
7512391Sjason@lowepower.com          cpu(_cpu), inSyscall(0), trapPending(0)
7612391Sjason@lowepower.com    {
7712391Sjason@lowepower.com#if FULL_SYSTEM
7812391Sjason@lowepower.com        if (cpu->params()->profile) {
7912391Sjason@lowepower.com            profile = new FunctionProfile(cpu->params()->system->kernelSymtab);
8012391Sjason@lowepower.com            Callback *cb =
8112391Sjason@lowepower.com                new MakeCallback<O3ThreadState,
8212391Sjason@lowepower.com                &O3ThreadState::dumpFuncProfile>(this);
8312391Sjason@lowepower.com            registerExitCallback(cb);
8412391Sjason@lowepower.com        }
8512391Sjason@lowepower.com
8612391Sjason@lowepower.com        // let's fill with a dummy node for now so we don't get a segfault
8712391Sjason@lowepower.com        // on the first cycle when there's no node available.
8812391Sjason@lowepower.com        static ProfileNode dummyNode;
8912391Sjason@lowepower.com        profileNode = &dummyNode;
9012391Sjason@lowepower.com        profilePC = 3;
9112391Sjason@lowepower.com#endif
9212391Sjason@lowepower.com    }
9312391Sjason@lowepower.com
9412391Sjason@lowepower.com    /** Pointer to the ThreadContext of this thread. */
9512391Sjason@lowepower.com    ThreadContext *tc;
9612391Sjason@lowepower.com
9712391Sjason@lowepower.com    /** Returns a pointer to the TC of this thread. */
9812391Sjason@lowepower.com    ThreadContext *getTC() { return tc; }
9912391Sjason@lowepower.com
10012391Sjason@lowepower.com    /** Handles the syscall. */
10112391Sjason@lowepower.com    void syscall(int64_t callnum) { process->syscall(callnum, tc); }
10212391Sjason@lowepower.com
10312391Sjason@lowepower.com    void dumpFuncProfile()
10412391Sjason@lowepower.com    {
10512391Sjason@lowepower.com        std::ostream *os = simout.create(csprintf("profile.%s.dat", cpu->name()));
10612391Sjason@lowepower.com        profile->dump(tc, *os);
10712391Sjason@lowepower.com    }
10812391Sjason@lowepower.com};
109
110#endif // __CPU_O3_THREAD_STATE_HH__
111