void StridePrefetcher::pushUp(MemRequest *mreq)
/* push up {{{1 */
{
if(mreq->isHomeNode()) {
buff->fillLine(mreq->getAddr());
mreq->destroy();
return;
}
learnMiss(paddr);
busReadAck(mreq);
}
void StridePrefetcher::read(MemRequest *mreq)
{
uint paddr = mreq->getPAddr() & defaultMask;
bLine *l = buff->readLine(paddr);
if(l) { //hit
LOG("SP: hit on %08lx", paddr);
hit.inc();
mreq->goUpAbs(nextBuffSlot() + hitDelay);
learnHit(paddr);
return;
}
penFetchSet::iterator it = pendingFetches.find(paddr);
if(it != pendingFetches.end()) { // half-miss
LOG("SP: half-miss on %08lx", paddr);
halfMiss.inc();
penReqMapper::iterator itR = pendingRequests.find(paddr);
if (itR == pendingRequests.end()) {
pendingRequests[paddr] = activeMemReqPool.out();
itR = pendingRequests.find(paddr);
}
I(itR != pendingRequests.end());
(*itR).second->push(mreq);
learnHit(paddr); // half-miss is a hit from the learning point of view
return;
}
LOG("SP:miss on %08lx", paddr);
miss.inc();
learnMiss(paddr);
mreq->goDownAbs(nextBuffSlot() + missDelay, lowerLevel[0]);
}
void StridePrefetcher::ifMiss(MemRequest *mreq)
/* push up {{{1 */
{
AddrType paddr = mreq->getAddr() & defaultMask;
learnMiss(paddr); //NOTE LEARN MISS
}
