diff options
Diffstat (limited to 'src/mem/cache/cache_impl.hh')
-rw-r--r-- | src/mem/cache/cache_impl.hh | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh index 056f6033f..5c6ab0950 100644 --- a/src/mem/cache/cache_impl.hh +++ b/src/mem/cache/cache_impl.hh @@ -570,8 +570,10 @@ Cache<TagStore,Coherence>::access(PacketPtr &pkt) } } while (!writebacks.empty()) { - missQueue->doWriteback(writebacks.front()); + PacketPtr wbPkt = writebacks.front(); + missQueue->doWriteback(wbPkt); writebacks.pop_front(); + delete wbPkt; } DPRINTF(Cache, "%s %x %s\n", pkt->cmdString(), pkt->getAddr(), @@ -581,12 +583,7 @@ Cache<TagStore,Coherence>::access(PacketPtr &pkt) // Hit hits[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/]++; // clear dirty bit if write through - if (pkt->needsResponse()) - respond(pkt, curTick+lat); - if (pkt->cmd == MemCmd::Writeback) { - //Signal that you can kill the pkt/req - pkt->flags |= SATISFIED; - } + respond(pkt, curTick+lat); return true; } @@ -604,14 +601,14 @@ Cache<TagStore,Coherence>::access(PacketPtr &pkt) if (pkt->flags & SATISFIED) { // happens when a store conditional fails because it missed // the cache completely - if (pkt->needsResponse()) - respond(pkt, curTick+lat); + respond(pkt, curTick+lat); } else { missQueue->handleMiss(pkt, size, curTick + hitLatency); } - if (pkt->cmd == MemCmd::Writeback) { + if (!pkt->needsResponse()) { //Need to clean up the packet on a writeback miss, but leave the request + //for the next level. delete pkt; } @@ -721,8 +718,10 @@ Cache<TagStore,Coherence>::handleResponse(PacketPtr &pkt) blk = handleFill(blk, (MSHR*)pkt->senderState, new_state, writebacks, pkt); while (!writebacks.empty()) { - missQueue->doWriteback(writebacks.front()); - writebacks.pop_front(); + PacketPtr wbPkt = writebacks.front(); + missQueue->doWriteback(wbPkt); + writebacks.pop_front(); + delete wbPkt; } } missQueue->handleResponse(pkt, curTick + hitLatency); @@ -1040,8 +1039,10 @@ return 0; // There was a cache hit. // Handle writebacks if needed while (!writebacks.empty()){ - memSidePort->sendAtomic(writebacks.front()); + PacketPtr wbPkt = writebacks.front(); + memSidePort->sendAtomic(wbPkt); writebacks.pop_front(); + delete wbPkt; } hits[pkt->cmdToIndex()][0/*pkt->req->getThreadNum()*/]++; |