Hi Jonathan, You can put the bridge wherever you would like. For MMIO things, you can put it after the point of coherence, which is where we usually put the "I/O crossbar."
You can poke around in configs/examples and util/systemc for some examples. Cheers, Jason On Wed, Apr 26, 2023 at 4:30 PM Jonathan Kang <mos...@meta.com> wrote: > Thanks! > > > > Would you have an example of how to instantiate this bridge? Also, I > imagine this bridge is right after the CPU I and D side ports and before > any membus that Gem5 has internally right? > > > > *From: *Jason Lowe-Power <ja...@lowepower.com> > *Date: *Wednesday, April 26, 2023 at 4:27 PM > *To: *The gem5 Users mailing list <gem5-users@gem5.org> > *Cc: *Jonathan Kang <mos...@meta.com> > *Subject: *Re: [gem5-users] Full System + external memory > > Hi Jonathan, Absolutely! You can set up a "bridge" which will take a > subset of addresses and route to a different gem5 port. If you can convert > from the port interface to the AXI, then it should "just work". Note that > there > > Hi Jonathan, > > > > Absolutely! You can set up a "bridge" which will take a subset of > addresses and route to a different gem5 port. If you can convert from the > port interface to the AXI, then it should "just work". Note that there are > also already bindings to SystemC/TLM in gem5 as well that could serve as > good examples. > > > > Cheers, > > Jason > > > > On Wed, Apr 26, 2023 at 11:44 AM Jonathan Kang via gem5-users < > gem5-users@gem5.org> wrote: > > I’m looking to integrate a Gem5 full system model with some of our > internal IP. The IP and memory (caches) will be memory mapped. So I’d like > it if the Gem5 full system could handle some parts of the system (file IO, > system calls) but route requests to certain memory address regions to an > external port (I’ve taken care of the conversion from Gem5 port to AXI > SystemC). Is this possible? > > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-le...@gem5.org > >
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