diff options
Diffstat (limited to 'src/mem/cache/cache_impl.hh')
| -rw-r--r-- | src/mem/cache/cache_impl.hh | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh index c3c1c0881..5c12075cd 100644 --- a/src/mem/cache/cache_impl.hh +++ b/src/mem/cache/cache_impl.hh @@ -287,13 +287,17 @@ template<class TagStore, class Buffering, class Coherence> void Cache<TagStore,Buffering,Coherence>::sendResult(PacketPtr &pkt, MSHR* mshr, bool success) { - if (success) { + if (success && !(pkt->flags & NACKED_LINE)) { missQueue->markInService(pkt, mshr); //Temp Hack for UPGRADES if (pkt->cmd == Packet::UpgradeReq) { + pkt->flags &= ~CACHE_LINE_FILL; handleResponse(pkt); } } else if (pkt && !pkt->req->isUncacheable()) { + pkt->flags &= ~NACKED_LINE; + pkt->flags &= ~SATISFIED; + pkt->flags &= ~SNOOP_COMMIT; missQueue->restoreOrigCmd(pkt); } } @@ -305,8 +309,9 @@ Cache<TagStore,Buffering,Coherence>::handleResponse(Packet * &pkt) BlkType *blk = NULL; if (pkt->senderState) { if (pkt->result == Packet::Nacked) { - pkt->reinitFromRequest(); - panic("Unimplemented NACK of packet\n"); + //pkt->reinitFromRequest(); + warn("NACKs from devices not connected to the same bus not implemented\n"); + return; } if (pkt->result == Packet::BadAddress) { //Make the response a Bad address and send it @@ -397,7 +402,8 @@ Cache<TagStore,Buffering,Coherence>::snoop(Packet * &pkt) assert(!(pkt->flags & SATISFIED)); pkt->flags |= SATISFIED; pkt->flags |= NACKED_LINE; - respondToSnoop(pkt, curTick + hitLatency); + warn("NACKs from devices not connected to the same bus not implemented\n"); + //respondToSnoop(pkt, curTick + hitLatency); return; } else { |