Adding gem5 source to svn.
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
This commit is contained in:
friemel
267
simulators/gem5/src/cpu/simple_thread.cc
Normal file
267
simulators/gem5/src/cpu/simple_thread.cc
Normal file
@ -0,0 +1,267 @@
|
||||
/*
|
||||
* Copyright (c) 2001-2006 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: Steve Reinhardt
|
||||
* Nathan Binkert
|
||||
* Lisa Hsu
|
||||
* Kevin Lim
|
||||
*/
|
||||
|
||||
#include <string>
|
||||
|
||||
#include "arch/isa_traits.hh"
|
||||
#include "arch/kernel_stats.hh"
|
||||
#include "arch/stacktrace.hh"
|
||||
#include "arch/utility.hh"
|
||||
#include "base/callback.hh"
|
||||
#include "base/cprintf.hh"
|
||||
#include "base/output.hh"
|
||||
#include "base/trace.hh"
|
||||
#include "config/the_isa.hh"
|
||||
#include "cpu/base.hh"
|
||||
#include "cpu/profile.hh"
|
||||
#include "cpu/quiesce_event.hh"
|
||||
#include "cpu/simple_thread.hh"
|
||||
#include "cpu/thread_context.hh"
|
||||
#include "mem/fs_translating_port_proxy.hh"
|
||||
#include "mem/se_translating_port_proxy.hh"
|
||||
#include "params/BaseCPU.hh"
|
||||
#include "sim/full_system.hh"
|
||||
#include "sim/process.hh"
|
||||
#include "sim/serialize.hh"
|
||||
#include "sim/sim_exit.hh"
|
||||
#include "sim/system.hh"
|
||||
|
||||
using namespace std;
|
||||
|
||||
// constructor
|
||||
SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys,
|
||||
Process *_process, TheISA::TLB *_itb,
|
||||
TheISA::TLB *_dtb)
|
||||
: ThreadState(_cpu, _thread_num, _process), system(_sys), itb(_itb),
|
||||
dtb(_dtb), decoder(NULL)
|
||||
{
|
||||
clearArchRegs();
|
||||
tc = new ProxyThreadContext<SimpleThread>(this);
|
||||
}
|
||||
SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys,
|
||||
TheISA::TLB *_itb, TheISA::TLB *_dtb,
|
||||
bool use_kernel_stats)
|
||||
: ThreadState(_cpu, _thread_num, NULL), system(_sys), itb(_itb), dtb(_dtb),
|
||||
decoder(NULL)
|
||||
{
|
||||
tc = new ProxyThreadContext<SimpleThread>(this);
|
||||
|
||||
quiesceEvent = new EndQuiesceEvent(tc);
|
||||
|
||||
clearArchRegs();
|
||||
|
||||
if (baseCpu->params()->profile) {
|
||||
profile = new FunctionProfile(system->kernelSymtab);
|
||||
Callback *cb =
|
||||
new MakeCallback<SimpleThread,
|
||||
&SimpleThread::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;
|
||||
|
||||
if (use_kernel_stats)
|
||||
kernelStats = new TheISA::Kernel::Statistics(system);
|
||||
}
|
||||
|
||||
SimpleThread::SimpleThread()
|
||||
: ThreadState(NULL, -1, NULL), decoder(NULL)
|
||||
{
|
||||
tc = new ProxyThreadContext<SimpleThread>(this);
|
||||
}
|
||||
|
||||
SimpleThread::~SimpleThread()
|
||||
{
|
||||
delete tc;
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::takeOverFrom(ThreadContext *oldContext)
|
||||
{
|
||||
// some things should already be set up
|
||||
if (FullSystem)
|
||||
assert(system == oldContext->getSystemPtr());
|
||||
assert(process == oldContext->getProcessPtr());
|
||||
|
||||
copyState(oldContext);
|
||||
if (FullSystem) {
|
||||
EndQuiesceEvent *quiesce = oldContext->getQuiesceEvent();
|
||||
if (quiesce) {
|
||||
// Point the quiesce event's TC at this TC so that it wakes up
|
||||
// the proper CPU.
|
||||
quiesce->tc = tc;
|
||||
}
|
||||
if (quiesceEvent) {
|
||||
quiesceEvent->tc = tc;
|
||||
}
|
||||
|
||||
TheISA::Kernel::Statistics *stats = oldContext->getKernelStats();
|
||||
if (stats) {
|
||||
kernelStats = stats;
|
||||
}
|
||||
}
|
||||
|
||||
storeCondFailures = 0;
|
||||
|
||||
oldContext->setStatus(ThreadContext::Halted);
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::copyTC(ThreadContext *context)
|
||||
{
|
||||
copyState(context);
|
||||
|
||||
if (FullSystem) {
|
||||
EndQuiesceEvent *quiesce = context->getQuiesceEvent();
|
||||
if (quiesce) {
|
||||
quiesceEvent = quiesce;
|
||||
}
|
||||
TheISA::Kernel::Statistics *stats = context->getKernelStats();
|
||||
if (stats) {
|
||||
kernelStats = stats;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::copyState(ThreadContext *oldContext)
|
||||
{
|
||||
// copy over functional state
|
||||
_status = oldContext->status();
|
||||
copyArchRegs(oldContext);
|
||||
if (FullSystem)
|
||||
funcExeInst = oldContext->readFuncExeInst();
|
||||
|
||||
_threadId = oldContext->threadId();
|
||||
_contextId = oldContext->contextId();
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::serialize(ostream &os)
|
||||
{
|
||||
ThreadState::serialize(os);
|
||||
SERIALIZE_ARRAY(floatRegs.i, TheISA::NumFloatRegs);
|
||||
SERIALIZE_ARRAY(intRegs, TheISA::NumIntRegs);
|
||||
_pcState.serialize(os);
|
||||
// thread_num and cpu_id are deterministic from the config
|
||||
|
||||
//
|
||||
// Now must serialize all the ISA dependent state
|
||||
//
|
||||
isa.serialize(baseCpu, os);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
SimpleThread::unserialize(Checkpoint *cp, const std::string §ion)
|
||||
{
|
||||
ThreadState::unserialize(cp, section);
|
||||
UNSERIALIZE_ARRAY(floatRegs.i, TheISA::NumFloatRegs);
|
||||
UNSERIALIZE_ARRAY(intRegs, TheISA::NumIntRegs);
|
||||
_pcState.unserialize(cp, section);
|
||||
// thread_num and cpu_id are deterministic from the config
|
||||
|
||||
//
|
||||
// Now must unserialize all the ISA dependent state
|
||||
//
|
||||
isa.unserialize(baseCpu, cp, section);
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::dumpFuncProfile()
|
||||
{
|
||||
std::ostream *os = simout.create(csprintf("profile.%s.dat",
|
||||
baseCpu->name()));
|
||||
profile->dump(tc, *os);
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::activate(int delay)
|
||||
{
|
||||
if (status() == ThreadContext::Active)
|
||||
return;
|
||||
|
||||
lastActivate = curTick();
|
||||
|
||||
// if (status() == ThreadContext::Unallocated) {
|
||||
// cpu->activateWhenReady(_threadId);
|
||||
// return;
|
||||
// }
|
||||
|
||||
_status = ThreadContext::Active;
|
||||
|
||||
// status() == Suspended
|
||||
baseCpu->activateContext(_threadId, delay);
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::suspend()
|
||||
{
|
||||
if (status() == ThreadContext::Suspended)
|
||||
return;
|
||||
|
||||
lastActivate = curTick();
|
||||
lastSuspend = curTick();
|
||||
_status = ThreadContext::Suspended;
|
||||
baseCpu->suspendContext(_threadId);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
SimpleThread::halt()
|
||||
{
|
||||
if (status() == ThreadContext::Halted)
|
||||
return;
|
||||
|
||||
_status = ThreadContext::Halted;
|
||||
baseCpu->haltContext(_threadId);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
SimpleThread::regStats(const string &name)
|
||||
{
|
||||
if (FullSystem && kernelStats)
|
||||
kernelStats->regStats(name + ".kern");
|
||||
}
|
||||
|
||||
void
|
||||
SimpleThread::copyArchRegs(ThreadContext *src_tc)
|
||||
{
|
||||
TheISA::copyRegs(src_tc, tc);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user