What does rmo/tce stand for in powerpc?

[Ryan Wang]

2011/11/3 Scott Wood <scottwood at freescale.com>

> On 11/02/2011 06:17 AM, Ryan Wang wrote:
> >
> >
> > 2011/11/2 Nishanth Aravamudan <nacc at us.ibm.com <mailto:nacc at us.ibm.com>>
> >
> >     Hi Ryan,
> >
> >     On 01.11.2011 [14:25:43 +0800], Ryan Wang wrote:
> >     > Hi,
> >     >
> >     > In kernel source comments, I saw the words:
> >     > ''
> >     >
> >     > alloc_top is set to the top of RMO, eventually shrink down if the
> >     > <http://lxr.linux.no/linux+*/arch/powerpc/kernel/prom_init.c#L972
> >     <http://lxr.linux.no/linux+*/arch/powerpc/kernel/prom_init.c#L972
> >>TCEs
> >     > overlap
> >     >
> >     > ''
> >     >
> >     > I wonder what does RMO mean, and TCE?
> >
> >     RMO = Real Mode Offset -- deprecated in terms of Real Mode Area in
> PAPR.
> >
> >     TCE = Translation Control Entry
> >
> >     You should be able to find descriptions of both in PAPR.
> >
> >
> > Thanks Nish!
> >
> > But I searched <Power.orgTM Standard for Embedded Power ArchitectureTM
> > Platform Requirements> and failed to found the concept RMO or Real Mode
> > Offset.
> >
> > Will you please give me some hints to the docs？Thanks,
>
> ePAPR and PAPR are not the same thing.
>
> It looks like PAPR is only available to power.org members.
>

Got it. Thanks, Nish.


>
> -Scott
>
>
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