dc* (Data Cache) instructions in mem*() and *_page() functions not used on 8xx

[Joakim Tjernlund]

It's me again

No response so far. Trying again.

     Jocke
>
> Hi again
>
> I trying to understand how the different mem*() and *_page() functions in arch/ppc/kernel/misc.S
> and arch/ppc/lib/string.S works wrt data cache.
>
> I found that on 8xx these are not used. Why? Are there 8xx variants that can't handle them?
> Do 860 work with these?
>
> Also, why is not dcbtst(write a cache line) used
> in the different copy functions, copy_page()for example, instead of the COPY_16_BYTES macro?
>
>   Jocke


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