On Wed, 08 Nov 2006 11:19:40 -0700
[email protected] (Eric W. Biederman) wrote:
> Andrew Morton <[email protected]> writes:
>
> > On Fri, 3 Nov 2006 21:27:35 -0800
> > "Yinghai Lu" <[email protected]> wrote:
> >
> >> For co-prcessor with mem installed, the ram will be treated to pref mem.
> >
> > What is "pref mem"?
>
> Memory mapped base address registers can be either normal or for prefetchable
> sections of memory mapped I/O. Frequently all prefetchable bars are 64bit.
> The prefetchable bars are also frequently ask for the largest amounts of
> memory. So it is easy and worthwhile to place all prefetchable bars about 4G.
>
> The "pref mem" short hand comes from a the LinuxBIOS print statements that
> report every bar value and what kind of bar it is, during boot up.
>
Ah. Prefetchable. Thanks.
I've basically given up in exhaustion on that patch. Maybe when I have a
burst of extra energy I'll go back and take the time to understand it,
or maybe when Greg comes back he'll save me.
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