Re: [microblaze-uclinux] Microblaze SMP

[Paul Hartke <phartke@xxxxxxxxxxxx>]

Hi Andy,

Thanks for the info.  I still think that some sort of hardware coherency
mechanism is the main limit to useful SMP support on an FPGA.  Lots of SMP
linux kernel work already exists out there.  While it will take some work
to get it up and running on Microblaze uclinux, that's not the major
challenge.

Paul

Quoting Abot Botbot <dejanigma@xxxxxxxxxxx>:
> Hey all,
>
>    I found the man on campus working on SMP and microblaze. I directed
> him
> at the forum and hopefully he will register and post soon. From my
> discussion with him yesterday it seems that his design would not nearly
> have
> the functionality needed to run linux yet. At the moment he has two
> microblaze running on one OPB bus, but they run different software and
> operate differnet peripherals. Clearly not an SMP system yet, but that
> may
> be one of his project goals. I discussed the issue of cache coherency and
> transparency of the SMP to the rest of the toolchain, as I know those are
> big issues for getting a working SMP uCLinux box. He didn't immediately
> seem
> to have ideas about how to attack these problems. I'll keep you posted if
> I
> get any more info and hopefully he will come here himself and you can ask
> him things directly.
>
> Thanks,
> Andy
>
> PS: Does anyone know of a pure Microblaze thread? I don't yet have a good
> feedback community for my more rudimentary Microblaze issues, and they
> certainly arent on the topic of uCLinux.
>
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