// Called when dinst finished execution. Look for dependent to wakeUp
void DepWindow::executed(DInst *dinst) {
// MSG("execute [0x%x] @%lld",dinst, globalClock);
I(!dinst->hasDeps());
//dinst->dump("Clearing2:");
dinst->clearRATEntry();
if (!dinst->hasPending())
return;
// NEVER HERE FOR in-order cores
I(dinst->getCluster());
I(srcCluster == dinst->getCluster());
// Only until reaches last. The instructions that are from another processor
// should be added again to the dependence chain so that MemRequest::ack can
// awake them (other processor instructions)
const DInst *stopAtDst = 0;
I(dinst->isIssued());
while (dinst->hasPending()) {
if (stopAtDst == dinst->getFirstPending())
break;
DInst *dstReady = dinst->getNextPending();
I(dstReady);
#if 0
if (!dstReady->isIssued()) {
I(dinst->getInst()->isStore());
I(!dstReady->hasDeps());
continue;
}
#endif
I(!dstReady->isExecuted());
if (!dstReady->hasDeps()) {
// Check dstRes because dstReady may not be issued
I(dstReady->getCluster());
const Cluster *dstCluster = dstReady->getCluster();
I(dstCluster);
Time_t when = wakeUpPort->nextSlot(dinst->getStatsFlag());
if (dstCluster != srcCluster) {
wrForwardBus.inc(dinst->getStatsFlag());
when += InterClusterLat;
}
dstReady->setWakeUpTime(when);
preSelect(dstReady);
}
}
}
void DInst::awakeRemoteInstructions()
{
while (hasPending()) {
DInst *dstReady = getNextPending();
I(inst->isStore());
I( dstReady->inst->isLoad());
I(!dstReady->isExecuted());
I( dstReady->hasDepsAtRetire());
I( dstReady->isSrc2Ready()); // LDSTBuffer queue in src2, free by now
dstReady->clearDepsAtRetire();
if (dstReady->isIssued() && !dstReady->hasDeps()) {
Resource *dstRes = dstReady->getResource();
// Coherence would add the latency because the cache line must be brought
// again (in theory it must be local to dinst processor and marked dirty
I(dstRes); // since isIssued it should have a resource
dstRes->simTime(dstReady);
}
}
}
// Called when dinst finished execution. Look for dependent to wakeUp
void DepWindow::executed(DInst *dinst) {
// MSG("execute [0x%x] @%lld",dinst, globalClock);
I(!dinst->hasDeps());
dinst->markExecuted();
dinst->clearRATEntry();
if (!dinst->hasPending())
return;
// NEVER HERE FOR in-order cores
I(dinst->getCluster());
I(srcCluster == dinst->getCluster());
I(dinst->isIssued());
while (dinst->hasPending()) {
DInst *dstReady = dinst->getNextPending();
I(dstReady);
I(!dstReady->isExecuted());
if (!dstReady->hasDeps()) {
// Check dstRes because dstReady may not be issued
I(dstReady->getCluster());
const Cluster *dstCluster = dstReady->getCluster();
I(dstCluster);
if (dstCluster != srcCluster) {
wrForwardBus.inc(dinst->getStatsFlag());
dinst->markInterCluster();
}
preSelect(dstReady);
}
}
}
void DInst::killSilently()
{
I(getPendEvent()==0);
I(getResource()==0);
#ifdef SESC_BAAD
if (fetch2Time == 0) {
fetch1QSize--;
}else if (renameTime == 0) {
fetch2QSize--;
}else if (issueTime == 0) {
issueQSize--;
}else if (schedTime == 0) {
schedQSize--;
}else if (exeTime == 0) {
exeQSize--;
}else{
retireQSize--;
}
#endif
markIssued();
markExecuted();
if( getFetch() ) {
getFetch()->unBlockFetch();
IS(setFetch(0));
}
if (getInst()->isStore())
LDSTBuffer::storeLocallyPerformed(this);
while (hasPending()) {
DInst *dstReady = getNextPending();
if (!dstReady->isIssued()) {
// Accross processor dependence
if (dstReady->hasDepsAtRetire())
dstReady->clearDepsAtRetire();
I(!dstReady->hasDeps());
continue;
}
if (dstReady->isExecuted()) {
// The instruction got executed even though it has dependences. This is
// because the instruction got silently killed (killSilently)
if (!dstReady->hasDeps())
dstReady->scrap();
continue;
}
if (!dstReady->hasDeps()) {
I(dstReady->isIssued());
I(!dstReady->isExecuted());
Resource *dstRes = dstReady->getResource();
I(dstRes);
dstRes->simTime(dstReady);
}
}
#ifdef TASKSCALAR
notifyDataDepViolation(DataDepViolationAtRetire);
if (lvid) { // maybe got killSilently
lvid = 0;
lvidVersion->decOutsReqs();
lvidVersion->garbageCollect();
IS(lvidVersion=0);
}
I(lvidVersion==0);
#endif
I(!getFetch());
if (hasDeps())
return;
I(nDeps == 0); // No deps src
#if (defined TLS)
I(!myEpoch);
#endif
I(!getFetch());
#if (defined MIPS_EMUL)
context->delDInst();
context=0;
#endif
dInstPool.in(this);
}
