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Date: Mon, 24 Jun 2013 06:54:07 +1000
Message-ID: <CAPM=9tyf18k+WYE7HwuJi2hefFYPyAYp6vVRvfgfprSYjapE-g@mail.gmail.com>
Subject: Re: MTRR use in drivers
From: Dave Airlie <airlied@gmail.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
        Brice Goglin <brice.goglin@gmail.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        David Airlie <airlied@linux.ie>, dri-devel@lists.freedesktop.org,
        Andy Lutomirski <luto@amacapital.net>
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>> breaking old boxes just because, is just going to get reverted when I
>> get the first regression report that you broke old boxes.
>>
>
> Not "just because", but *if* the choice is between breaking old boxes
> and breaking new boxes I'll take the latter.
>

But Linus won't so your choice doesn't matter.

>> Andy Lutomirski just submitted a bunch of patches to clean up the DRM
>> usage of mtrrs, they are in drm-next, afaik we no longer add them on
>> PAT systems.
>
> Fantastic news.  No issue, then, and no need to break anything.

Granted I haven't tested Andy's patches on my AGP boxes, and I intend to,
if they do cause any regressions he'll be working them out :-)

Dave.
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