diff options
Diffstat (limited to 'src/mem/packet_queue.cc')
| -rw-r--r-- | src/mem/packet_queue.cc | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/mem/packet_queue.cc b/src/mem/packet_queue.cc index 428f8c13f..e9fe72ead 100644 --- a/src/mem/packet_queue.cc +++ b/src/mem/packet_queue.cc @@ -168,13 +168,19 @@ PacketQueue::scheduleSend(Tick time) { // the next ready time is either determined by the next deferred packet, // or in the cache through the MSHR ready time - Tick nextReady = std::min(deferredPacketReadyTime(), time); + Tick nextReady = std::max(std::min(deferredPacketReadyTime(), time), + curTick() + 1); if (nextReady != MaxTick) { // if the sendTiming caused someone else to call our // recvTiming we could already have an event scheduled, check - if (!sendEvent.scheduled()) - em.schedule(&sendEvent, std::max(nextReady, curTick() + 1)); + if (!sendEvent.scheduled()) { + em.schedule(&sendEvent, nextReady); + } else if (nextReady < sendEvent.when()) { + // if the new time is earlier than when the event + // currently is scheduled, move it forward + em.reschedule(&sendEvent, nextReady); + } } else { // no more to send, so if we're draining, we may be done if (drainManager && transmitList.empty() && !sendEvent.scheduled()) { |