From 47313601c1e4640b65d3974b7e06b9d7c7707742 Mon Sep 17 00:00:00 2001 From: Andreas Hansson Date: Sun, 10 Aug 2014 05:39:04 -0400 Subject: [PATCH] cpu: Ensure the traffic generator suppresses non-memory packets This patch adds a check to ensure that packets which are not going to a memory range are suppressed in the traffic generator. Thus, if a trace is collected in full-system, the packets destined for devices are not played back. --- src/cpu/testers/traffic_gen/traffic_gen.cc | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/src/cpu/testers/traffic_gen/traffic_gen.cc b/src/cpu/testers/traffic_gen/traffic_gen.cc index d53c9b000..c1ce0d6d4 100644 --- a/src/cpu/testers/traffic_gen/traffic_gen.cc +++ b/src/cpu/testers/traffic_gen/traffic_gen.cc @@ -187,10 +187,18 @@ TrafficGen::update() assert(curTick() >= nextPacketTick); // get the next packet and try to send it PacketPtr pkt = states[currState]->getNextPacket(); - numPackets++; - if (!port.sendTimingReq(pkt)) { - retryPkt = pkt; - retryPktTick = curTick(); + + // suppress packets that are not destined for a memory, such as + // device accesses that could be part of a trace + if (system->isMemAddr(pkt->getAddr())) { + numPackets++; + if (!port.sendTimingReq(pkt)) { + retryPkt = pkt; + retryPktTick = curTick(); + } + } else { + DPRINTF(TrafficGen, "Suppressed packet %s 0x%x\n", + pkt->cmdString(), pkt->getAddr()); } } -- 2.30.2