changeset d4090f0cab30 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=d4090f0cab30
description:
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.
diffstat:
src/cpu/testers/traffic_gen/traffic_gen.cc | 16 ++++++++++++----
1 files changed, 12 insertions(+), 4 deletions(-)
diffs (26 lines):
diff -r 0d0be755dda8 -r d4090f0cab30 src/cpu/testers/traffic_gen/traffic_gen.cc
--- a/src/cpu/testers/traffic_gen/traffic_gen.cc Sun Aug 10 05:38:59
2014 -0400
+++ b/src/cpu/testers/traffic_gen/traffic_gen.cc Sun Aug 10 05:39:04
2014 -0400
@@ -187,10 +187,18 @@
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());
}
}
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