On Nov 18, 2007 5:50 PM, Shoaib Akram <[EMAIL PROTECTED]> wrote:
> I have a question regarding the recvtiming() function in bus.cc. Please refer
> to the following code snippet:
>
> if (dest == Packet::Broadcast) {
> port = findPort(pkt->getAddr(), pkt->getSrc());
> if (timingSnoop(pkt, port ? port : interfaces[pkt->getSrc()])) {
> bool success;
>
> pkt->flags |= SNOOP_COMMIT;
> success = timingSnoop(pkt, port ? port : .....
It looks like you're using an old version... you should upgrade to
2.0b4. The bus code is somewhat cleaned up. In particular there's no
SNOOP_COMMIT flag anymore.
>
> Does the destination field in packet is set to Broadcast each time a cache
> miss occurs?
Yes.
> If not, under what scenario is the destination of packet a Broadcast. Looks
> like timingsnoop() is being called on events other than a cache miss !
Can you give some examples?
> Also, any ideas how I can track the information that the current packet needs
> to occupy the bus because of an earlier cache miss.
Can you be more specific? Packets are already delayed if necessary
due to earlier bus traffic; that's what tickNextIdle is all about.
Steve
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