Subject: Re: What does rmo/tce stand for in powerpc?

From: Nishanth Aravamudan <[email-masked]>
Date: Tue, 1 Nov 2011 10:25:31 -0700

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

-- 
Nishanth Aravamudan <[email-masked]>
IBM Linux Technology Center