[Cbe-oss-dev] [PATCH 3/6] cell: add hardcoded spu vicinity information for CBPW

Arnd Bergmann arnd at arndb.de
Tue Feb 13 05:18:59 EST 2007


On Monday 12 February 2007 18:48, André Detsch wrote:
> > I'm not really sure how to handle SystemSim. Does it even simulate
> > different access patterns based on the location of the SPU? If not,
> > we should not try to fake anything here. If anything, it should
> > be up to the simulation to create the vicinity properties for
> > the simulated hardware, based on user decisions.
> 
> I was using SystemSim for testing, but I don't think it simulates 
> different access patterns based on SPU location. I don't see much 
> problem on having affinity. Should the 'of_flat_dt_is_compatible(root, 
> "IBM,CPBW-SystemSim")' condition be removed from the code then?

Yes, I'd prefer that. I'm not sure who in the systemsim team maintains
the device tree, but I guess it would be good if they could add
the optional vicinity properties there.

	Arnd <><



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