[RFC][PATCH] initial port of fixmap over from x86 for ppc32

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Apr 8 09:51:32 EST 2008


On Mon, 2008-04-07 at 11:20 -0500, Scott Wood wrote:
> 
> Another possible use is a BAT/TLB1 mapping for SoC registers (or
> anything
> else on the board which is frequently accessed), which can be reused
> by
> ioremap() to avoid wasting normal TLB entries, and to facilitate early
> debugging.

As far as the above is concerned, I'm not too fan of fixed virtual
addresses. I'd rather dynamically assign it. But we can do it.

Ben.





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