See dram_ctrl.cc for an example: https://gem5.googlesource.com/public/gem5/+/master/src/mem/dram_ctrl.cc
Jason On Mon, Jan 29, 2018 at 10:38 PM Saivarun R <rsvaru...@gmail.com> wrote: > Hi Jason, > > Thank you for you reply. > What you are suggesting is to model the Dram Cache similar to a memory > object, say main memory which takes requests of 64 bytes but stores at a > different granularity. Can you direct me as to where do I need to look for > this change?? > > Also is making cacheline size local to each cache is difficult to update?? > Please share your views as to which one would be a better option to go > ahead. > > Thank you > Varun > > On Tue, Jan 30, 2018 at 2:39 AM, Jason Lowe-Power <ja...@lowepower.com> > wrote: > >> Hi Vaurn, >> >> Three quick answers: >> 1. Currently, the cache line size in gem5 is global to the system. So you >> can't have a different line size in some caches than others. >> 2. You could probably modify the code to increase the maximum cache block >> size. I'm not sure why it's 128 bytes... >> 3. What I would do is *not* use the cache line size parameter for the >> DRAM cache, but make your own new parameter. Basically treat the the DRAM >> cache as a memory object that accepts 64 byte requests but stores data with >> a different line size. >> >> Hope this helps. >> >> Jason >> >> ----------- >> Jason Lowe-Power >> Assistant Professor, Computer Science Department >> University of California, Davis >> 3049 Kemper Hall >> https://faculty.engineering.ucdavis.edu/lowepower/ >> >> >> On Mon, Jan 29, 2018 at 6:43 AM Saivarun R <rsvaru...@gmail.com> wrote: >> >>> Hi everyone, >>> >>> I'm trying to simulate a *DRAM caches*, in gem5, which are primarily >>> modeled as page-based caches in the research community. But the gem5 >>> simulator only supports a maximum of *128 bytes* as the size of the >>> cacheline. I've seen the previous mailing lists in search of the answer, >>> but found nothing that would help me. >>> >>> What is the best solution regarding this issue?? >>> >>> Thank you in advance :-) >>> Varun >>> _______________________________________________ >>> gem5-users mailing list >>> gem5-users@gem5.org >>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> >> >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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