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/*
* Copyright (c) 2006 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Kevin Lim
*/
#ifndef __CPU_OZONE_THREAD_STATE_HH__
#define __CPU_OZONE_THREAD_STATE_HH__
#include "sim/faults.hh"
#include "arch/types.hh"
#include "arch/regfile.hh"
#include "base/callback.hh"
#include "base/output.hh"
#include "cpu/thread_context.hh"
#include "cpu/thread_state.hh"
#include "sim/process.hh"
#include "sim/sim_exit.hh"
class Event;
//class Process;
#if FULL_SYSTEM
class EndQuiesceEvent;
class FunctionProfile;
class ProfileNode;
#else
class Process;
class FunctionalMemory;
#endif
// Maybe this ozone thread state should only really have committed state?
// I need to think about why I'm using this and what it's useful for. Clearly
// has benefits for SMT; basically serves same use as SimpleThread.
// Makes the ExecContext proxy easier. Gives organization/central access point
// to state of a thread that can be accessed normally (i.e. not in-flight
// stuff within a OoO processor). Does this need an TC proxy within it?
template <class Impl>
struct OzoneThreadState : public ThreadState {
typedef typename ThreadContext::Status Status;
typedef typename Impl::CPUType CPUType;
typedef TheISA::MiscReg MiscReg;
#if FULL_SYSTEM
OzoneThreadState(CPUType *_cpu, int _thread_num)
: ThreadState(-1, _thread_num),
intrflag(0), cpu(_cpu), inSyscall(0), trapPending(0)
{
if (cpu->params->profile) {
profile = new FunctionProfile(cpu->params->system->kernelSymtab);
Callback *cb =
new MakeCallback<OzoneThreadState,
&OzoneThreadState::dumpFuncProfile>(this);
registerExitCallback(cb);
}
// let's fill with a dummy node for now so we don't get a segfault
// on the first cycle when there's no node available.
static ProfileNode dummyNode;
profileNode = &dummyNode;
profilePC = 3;
miscRegFile.clear();
}
#else
OzoneThreadState(CPUType *_cpu, int _thread_num, Process *_process,
int _asid, MemObject *mem)
: ThreadState(-1, _thread_num, _process, _asid, mem),
cpu(_cpu), inSyscall(0), trapPending(0)
{
miscRegFile.clear();
}
#endif
RenameTable<Impl> renameTable;
Addr PC;
Addr nextPC;
TheISA::MiscRegFile miscRegFile;
int intrflag;
typename Impl::CPUType *cpu;
bool inSyscall;
bool trapPending;
ThreadContext *tc;
ThreadContext *getTC() { return tc; }
MiscReg readMiscReg(int misc_reg)
{
return miscRegFile.readReg(misc_reg);
}
MiscReg readMiscRegWithEffect(int misc_reg, Fault &fault)
{
return miscRegFile.readRegWithEffect(misc_reg, fault, tc);
}
Fault setMiscReg(int misc_reg, const MiscReg &val)
{
return miscRegFile.setReg(misc_reg, val);
}
Fault setMiscRegWithEffect(int misc_reg, const MiscReg &val)
{
return miscRegFile.setRegWithEffect(misc_reg, val, tc);
}
uint64_t readPC()
{ return PC; }
void setPC(uint64_t val)
{ PC = val; }
uint64_t readNextPC()
{ return nextPC; }
void setNextPC(uint64_t val)
{ nextPC = val; }
#if FULL_SYSTEM
void dumpFuncProfile()
{
std::ostream *os = simout.create(csprintf("profile.%s.dat", cpu->name()));
profile->dump(tc, *os);
}
#endif
};
#endif // __CPU_OZONE_THREAD_STATE_HH__
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