Re: x86, ARM, PARISC, PPC, MIPS and Sparc folks please run this

From: Matt Porter
Date: Mon Sep 01 2003 - 21:17:47 EST


On Mon, Sep 01, 2003 at 10:22:02AM -0700, Roland Dreier wrote:
> Matt> PPC440GX, non cache coherent, L1 icache is VTPI, L1 dcache
> Matt> is PTPI
>
> Jamie> The cache looks very coherent to me.
>
> Matt (like me) is probably just used to thinking of the IBM PPC 440
> chips as non-coherent because they are not cache coherent with respect
> to external bus masters (eg they don't snoop the PCI bus). Of course,
> this is a different type of coherency from what you are measuring.

Exactly. After reading some other subthreads I see the other version of
"cache coherency" that Jamie is interested in.

-Matt
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