diff options
Diffstat (limited to 'src/mem/cache/cache_impl.hh')
-rw-r--r-- | src/mem/cache/cache_impl.hh | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh index 9bb72e85c..176d9159a 100644 --- a/src/mem/cache/cache_impl.hh +++ b/src/mem/cache/cache_impl.hh @@ -536,7 +536,7 @@ Cache<TagStore,Buffering,Coherence>::probe(PacketPtr &pkt, bool update, if (!update && (pkt->isWrite() || (otherSidePort == cpuSidePort))) { // Still need to change data in all locations. - otherSidePort->sendFunctional(pkt); + otherSidePort->checkAndSendFunctional(pkt); if (pkt->isRead() && pkt->result == Packet::Success) return 0; } @@ -560,30 +560,33 @@ Cache<TagStore,Buffering,Coherence>::probe(PacketPtr &pkt, bool update, missQueue->findWrites(blk_addr, writes); if (!update) { + bool notDone = !(pkt->flags & SATISFIED); //Hit in cache (was a block) // Check for data in MSHR and writebuffer. if (mshr) { MSHR::TargetList *targets = mshr->getTargetList(); MSHR::TargetList::iterator i = targets->begin(); MSHR::TargetList::iterator end = targets->end(); - for (; i != end; ++i) { + for (; i != end && notDone; ++i) { PacketPtr target = *i; // If the target contains data, and it overlaps the // probed request, need to update data if (target->intersect(pkt)) { - fixPacket(pkt, target); + DPRINTF(Cache, "Functional %s access to blk_addr %x intersects a MSHR\n", + blk_addr); + notDone = fixPacket(pkt, target); } } } - for (int i = 0; i < writes.size(); ++i) { + for (int i = 0; i < writes.size() && notDone; ++i) { PacketPtr write = writes[i]->pkt; if (write->intersect(pkt)) { - fixPacket(pkt, write); + DPRINTF(Cache, "Functional %s access to blk_addr %x intersects a writeback\n", + pkt->cmdString(), blk_addr); + notDone = fixPacket(pkt, write); } } - if (pkt->isRead() - && pkt->result != Packet::Success - && otherSidePort == memSidePort) { - otherSidePort->sendFunctional(pkt); + if (notDone && otherSidePort == memSidePort) { + otherSidePort->checkAndSendFunctional(pkt); assert(pkt->result == Packet::Success); } return 0; |