What does rmo/tce stand for in powerpc?
Nishanth Aravamudan
nacc at us.ibm.com
Thu Nov 3 05:30:55 EST 2011
On 02.11.2011 [19:17:20 +0800], Ryan Wang wrote:
> 2011/11/2 Nishanth Aravamudan <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>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,
Section 14.1.1 Real Mode Accesses in PAPR 2.4
Thanks,
Nish
--
Nishanth Aravamudan <nacc at us.ibm.com>
IBM Linux Technology Center
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