diff options
Diffstat (limited to 'src/mem/coherent_bus.cc')
| -rw-r--r-- | src/mem/coherent_bus.cc | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/mem/coherent_bus.cc b/src/mem/coherent_bus.cc index 20597bc3a..756d4c05c 100644 --- a/src/mem/coherent_bus.cc +++ b/src/mem/coherent_bus.cc @@ -92,6 +92,7 @@ CoherentBus::CoherentBus(const CoherentBusParams *p) slavePorts.push_back(bp); respLayers.push_back(new RespLayer(*bp, *this, csprintf(".respLayer%d", i))); + snoopRespPorts.push_back(new SnoopRespPort(*bp, *this)); } clearPortCache(); @@ -105,6 +106,8 @@ CoherentBus::~CoherentBus() delete *l; for (auto l = snoopLayers.begin(); l != snoopLayers.end(); ++l) delete *l; + for (auto p = snoopRespPorts.begin(); p != snoopRespPorts.end(); ++p) + delete *p; } void @@ -338,6 +341,14 @@ CoherentBus::recvTimingSnoopResp(PacketPtr pkt, PortID slave_port_id) src_port->name(), pkt->cmdString(), pkt->getAddr()); return false; } + } else { + // get the master port that mirrors this slave port internally + MasterPort* snoop_port = snoopRespPorts[slave_port_id]; + if (!respLayers[dest_port_id]->tryTiming(snoop_port)) { + DPRINTF(CoherentBus, "recvTimingSnoopResp: src %s %s 0x%x BUSY\n", + snoop_port->name(), pkt->cmdString(), pkt->getAddr()); + return false; + } } DPRINTF(CoherentBus, "recvTimingSnoopResp: src %s %s 0x%x\n", @@ -393,6 +404,8 @@ CoherentBus::recvTimingSnoopResp(PacketPtr pkt, PortID slave_port_id) // currently it is illegal to block responses... can lead // to deadlock assert(success); + + respLayers[dest_port_id]->succeededTiming(packetFinishTime); } // stats updates |