Hi Joel, As it turns out, clock domains and power domains are also hierarchies, just like our SimObject (or even better, MemObjects), however, they are not the same hierarchy as what we have at the moment. In other words, they slice the object hierarchy (for lack of a better terminology), into an orthogonal hierarchy. I very much agree that this makes life complicated, and I am open for suggestions around how to better express this. A prime example of this is all the platform devices.
Let me know what you think would make life easier and we take it from there. Andreas On 13/09/2013 11:37, "Joel Hestness" <[email protected]> wrote: >Hey guys, > I've been trying to update to the latest gem5 for gem5-gpu, and I'm >getting all kinds of warnings about clock domains because of the way they >are handled currently. In particular, clock domains are attached as >children of the SimObjects that represent a part of the processor's >functionality (e.g. cpu cores have a child clock domain), but often in >system configuration files, you need to hang onto the clock domain by >attaching as a child of, say, the system that you're instantiating. This >leads to warnings that the clock domain already has a parent (both >SimObjects and the system). > > This seems really backwards to me. I think that clock domains should be >managed by the top-level system, and other components in the system should >be added as children of the clock domains, especially since we've also >introduced derived clocks, which make the whole object hierarchy even >messier when they are children of SimObjects and the parent clock domain. > > Is there a particular reason why this was inverted? If not, I think we >should aim to make clock domains the parents of all the processor >component >SimObjects. > > Thanks, > Joel > >-- > Joel Hestness > PhD Student, Computer Architecture > Dept. of Computer Science, University of Wisconsin - Madison > http://pages.cs.wisc.edu/~hestness/ >_______________________________________________ >gem5-dev mailing list >[email protected] >http://m5sim.org/mailman/listinfo/gem5-dev > -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782 _______________________________________________ gem5-dev mailing list [email protected] http://m5sim.org/mailman/listinfo/gem5-dev
