void BankedMSHR<Addr_t, Cache_t>::addEntry(Addr_t paddr, CallbackBase *c,
CallbackBase *ovflwc, MemOperation mo)
{
if(!overflow.empty()) {
toOverflow(paddr, c, ovflwc, mo);
return;
}
if(mshrBank[calcBankIndex(paddr)]->canAcceptRequest(paddr, mo)) {
nOutsReqs++;
mshrBank[calcBankIndex(paddr)]->addEntry(paddr, c, ovflwc, mo);
I(!mshrBank[calcBankIndex(paddr)]->isOverflowing());
return;
}
toOverflow(paddr, c, ovflwc, mo);
}
void SingleMSHR<Addr_t, Cache_t>::addEntry(Addr_t paddr, CallbackBase *c,
CallbackBase *ovflwc, MemOperation mo)
{
MSHRit it = ms.find(calcLineAddr(paddr));
I(ovflwc); // for single MSHR, overflow handler REQUIRED!
if(!overflow.empty()) {
toOverflow(paddr, c, ovflwc, mo);
return;
}
if(it == ms.end()) {// we must be overflowing because the issue did not happen
toOverflow(paddr, c, ovflwc, mo);
return;
}
I(it != ms.end());
if((*it).second.addRequest(paddr, c, mo)) {
// ok, the addrequest succeeded, the request was added
avgQueueSize.sample((*it).second.getPendingReqs() - 1);
nOutsReqs++;
#ifdef MSHR_BASICOCCSTATS
if(mo == MemRead)
occStats->incRdReqs();
#endif
// there was no overflow, so the callback needs to be destroyed
ovflwc->destroy();
// check to see if we have filled up the subentries
checkSubEntries(paddr, mo);
//MSG("[%llu] nFullRd=%d nFullWr=%d a:%lu",globalClock,
// nFullReadEntries,nFullWriteEntries, calcLineAddr(paddr));
return;
} else {
// too many oustanding requests to the same line already. send to overflow
toOverflow(paddr, c, ovflwc, mo);
return;
}
}
