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cpu: Ensure the traffic generator suppresses non-memory packets

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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.
This commit is contained in:
Andreas Hansson 2014-08-10 05:39:04 -04:00
parent d45ab59c29
commit 47313601c1
1 changed files with 12 additions and 4 deletions
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16
src/cpu/testers/traffic_gen/traffic_gen.cc
View file

@ -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());
}
}