* What does rmo/tce stand for in powerpc?
@ 2011-11-01 6:25 Ryan Wang
2011-11-01 17:25 ` Nishanth Aravamudan
0 siblings, 1 reply; 6+ messages in thread
From: Ryan Wang @ 2011-11-01 6:25 UTC (permalink / raw)
To: linuxppc-dev
[-- Attachment #1: Type: text/plain, Size: 250 bytes --]
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?
thanks,
[-- Attachment #2: Type: text/html, Size: 484 bytes --]
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: What does rmo/tce stand for in powerpc?
2011-11-01 6:25 What does rmo/tce stand for in powerpc? Ryan Wang
@ 2011-11-01 17:25 ` Nishanth Aravamudan
2011-11-02 11:17 ` Ryan Wang
0 siblings, 1 reply; 6+ messages in thread
From: Nishanth Aravamudan @ 2011-11-01 17:25 UTC (permalink / raw)
To: Ryan Wang; +Cc: linuxppc-dev
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 <nacc@us.ibm.com>
IBM Linux Technology Center
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: What does rmo/tce stand for in powerpc?
2011-11-01 17:25 ` Nishanth Aravamudan
@ 2011-11-02 11:17 ` Ryan Wang
2011-11-02 18:30 ` Nishanth Aravamudan
2011-11-02 19:19 ` Scott Wood
0 siblings, 2 replies; 6+ messages in thread
From: Ryan Wang @ 2011-11-02 11:17 UTC (permalink / raw)
To: Nishanth Aravamudan; +Cc: linuxppc-dev
[-- Attachment #1: Type: text/plain, Size: 944 bytes --]
2011/11/2 Nishanth Aravamudan <nacc@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,
>
> Thanks,
> Nish
>
> --
> Nishanth Aravamudan <nacc@us.ibm.com>
> IBM Linux Technology Center
>
>
[-- Attachment #2: Type: text/html, Size: 1706 bytes --]
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: What does rmo/tce stand for in powerpc?
2011-11-02 11:17 ` Ryan Wang
@ 2011-11-02 18:30 ` Nishanth Aravamudan
2011-11-02 19:19 ` Scott Wood
1 sibling, 0 replies; 6+ messages in thread
From: Nishanth Aravamudan @ 2011-11-02 18:30 UTC (permalink / raw)
To: Ryan Wang; +Cc: linuxppc-dev
On 02.11.2011 [19:17:20 +0800], Ryan Wang wrote:
> 2011/11/2 Nishanth Aravamudan <nacc@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@us.ibm.com>
IBM Linux Technology Center
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: What does rmo/tce stand for in powerpc?
2011-11-02 11:17 ` Ryan Wang
2011-11-02 18:30 ` Nishanth Aravamudan
@ 2011-11-02 19:19 ` Scott Wood
2011-11-03 1:05 ` Ryan Wang
1 sibling, 1 reply; 6+ messages in thread
From: Scott Wood @ 2011-11-02 19:19 UTC (permalink / raw)
To: Ryan Wang; +Cc: Nishanth Aravamudan, linuxppc-dev
On 11/02/2011 06:17 AM, Ryan Wang wrote:
>=20
>=20
> 2011/11/2 Nishanth Aravamudan <nacc@us.ibm.com <mailto:nacc@us.ibm.com>=
>
>=20
> Hi Ryan,
>=20
> 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?
>=20
> RMO =3D Real Mode Offset -- deprecated in terms of Real Mode Area i=
n PAPR.
>=20
> TCE =3D Translation Control Entry
>=20
> You should be able to find descriptions of both in PAPR.
>=20
>=20
> Thanks Nish!
>=20
> But I searched <Power.orgTM Standard for Embedded Power ArchitectureTM
> Platform Requirements> and failed to found the concept RMO or Real Mode
> Offset.
>=20
> Will you please give me some hints to the docs=EF=BC=9FThanks,
ePAPR and PAPR are not the same thing.
It looks like PAPR is only available to power.org members.
-Scott
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: What does rmo/tce stand for in powerpc?
2011-11-02 19:19 ` Scott Wood
@ 2011-11-03 1:05 ` Ryan Wang
0 siblings, 0 replies; 6+ messages in thread
From: Ryan Wang @ 2011-11-03 1:05 UTC (permalink / raw)
To: Scott Wood; +Cc: Nishanth Aravamudan, linuxppc-dev
[-- Attachment #1: Type: text/plain, Size: 1350 bytes --]
2011/11/3 Scott Wood <scottwood@freescale.com>
> On 11/02/2011 06:17 AM, Ryan Wang wrote:
> >
> >
> > 2011/11/2 Nishanth Aravamudan <nacc@us.ibm.com <mailto:nacc@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
>
>
[-- Attachment #2: Type: text/html, Size: 2580 bytes --]
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-11-03 1:05 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-11-01 6:25 What does rmo/tce stand for in powerpc? Ryan Wang
2011-11-01 17:25 ` Nishanth Aravamudan
2011-11-02 11:17 ` Ryan Wang
2011-11-02 18:30 ` Nishanth Aravamudan
2011-11-02 19:19 ` Scott Wood
2011-11-03 1:05 ` Ryan Wang
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).