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Re: [UPDATED PATCH] IP28 support

To: peter fuerst <>
Subject: Re: [UPDATED PATCH] IP28 support
From: Ralf Baechle <>
Date: Thu, 6 Dec 2007 11:41:03 +0000
Cc: Thomas Bogendoerfer <>, Kumba <>,
In-reply-to: <Pine.LNX.4.21.0712051841520.1354@Opal.Peter>
Original-recipient: rfc822;
References: <> <Pine.LNX.4.21.0712051841520.1354@Opal.Peter>
User-agent: Mutt/1.5.17 (2007-11-01)
On Wed, Dec 05, 2007 at 08:49:53PM +0100, peter fuerst wrote:

> > there seems to be a missing understanding, why the cache
> > barriers are needed. I guess the patch could be improved
> > by pointing directly to the errata section of the R10k
> > user manual. Or even better copy the text out of the user
> > manual. That should make clear why this patch is needed.
> Better copy, i guess. (Assuming copying whole paragraphs is still proper
> citation ;-) Along with the initial patch (.../2006-03.msg00090.html) as
> well as in the last letter so far (.../2006-05/msg01446.html) i pointed
> to the corresponding chapter in the R10k User's Manual and to the entry
> in the NetBSD eMail archive. In the last letter i tried to augment these
> by a summarizing explanation, but it seems i'm not very good at that...

I'm not sure how far "fair use" of the R10000 manual text can be stretched.
But afair Bill Earl ( posted a reasonable explanation which
also for the purposes of the gcc manual is much easier to understand.


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