mem/cache/base.cc

59 #include "mem/cache/mshr.hh"
241 BaseCache::handleTimingReqMiss(PacketPtr pkt, MSHR *mshr, CacheBlk *blk,
250     if (mshr) {
285                 mshr->allocateTarget(pkt, forward_time, order++,
287                 if (mshr->getNumTargets() == numTarget) {
288                     noTargetMSHR = mshr;
290                     // need to be careful with this... if this mshr isn't
293                     // mshrQueue.moveToFront(mshr);
433     MSHR *mshr = dynamic_cast<MSHR*>(pkt->popSenderState());
434     assert(mshr);
436     if (mshr == noTargetMSHR) {
443     QueueEntry::Target *initial_tgt = mshr->getTarget();
459     bool is_fill = !mshr->isForward &&
461          mshr->wasWholeLineWrite);
463     // make sure that if the mshr was due to a whole line write then
465     assert(!mshr->wasWholeLineWrite || pkt->isInvalidate());
473         const bool allocate = (writeAllocator && mshr->wasWholeLineWrite) ?
474             writeAllocator->allocate() : mshr->allocOnFill();
489         mshr->promoteReadable();
496         mshr->promoteWritable();
499     serviceMSHRTargets(mshr, pkt, blk);
501     if (mshr->promoteDeferredTargets()) {
507         mshrQueue.markPending(mshr);
510         // while we deallocate an mshr from the queue we still have to
514         mshrQueue.deallocate(mshr);
629     MSHR *mshr = mshrQueue.findMatch(blk_addr, is_secure);
649                       (mshr && mshr->inService && mshr->isPendingModified()));
1046         // create and mark as in service the mshr for the downstream
1115             // MSHR. As of now assume a mshr queue search takes as long as
1718 BaseCache::sendMSHRQueuePacket(MSHR* mshr)
1720     assert(mshr);
1723     PacketPtr tgt_pkt = mshr->getTarget()->pkt;
1732         if (!mshr->isWholeLineWrite()) {
1736             if (writeAllocator->delay(mshr->blkAddr)) {
1740                 mshrQueue.delay(mshr, delay);
1746             writeAllocator->resetDelay(mshr->blkAddr);
1750     CacheBlk *blk = tags->findBlock(mshr->blkAddr, mshr->isSecure);
1754     PacketPtr pkt = createMissPacket(tgt_pkt, blk, mshr->needsWritable(),
1755                                      mshr->isWholeLineWrite());
1757     mshr->isForward = (pkt == nullptr);
1759     if (mshr->isForward) {
1769     pkt->pushSenderState(mshr);
1800         markInService(mshr, pending_modified_resp);
2329             .desc("mshr miss rate for " + cstr + " accesses")
2342         .desc("mshr miss rate for demand accesses")
2352         .desc("mshr miss rate for overall accesses")
2367             .desc("average " + cstr + " mshr miss latency")
2381         .desc("average overall mshr miss latency")
2391         .desc("average overall mshr miss latency")
2406             .desc("average " + cstr + " mshr uncacheable latency")
2420         .desc("average overall mshr uncacheable latency")