From: "H. Peter Anvin" <hpa@zytor.com>
To: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Brice Goglin <brice.goglin@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
dri-devel@lists.freedesktop.org
Subject: Re: MTRR use in drivers
Date: Sun, 23 Jun 2013 15:10:36 -0700 [thread overview]
Message-ID: <51C7725C.5090801@zytor.com> (raw)
In-Reply-To: <20130623215649.GA1288@khazad-dum.debian.net>
On 06/23/2013 02:56 PM, Henrique de Moraes Holschuh wrote:
>
> And as far as I could find from Intel's not-that-complete public
> "specification updates", we are applying the errata workaround to a few more
> processors than strictly required, but since I have no idea how to write a
> test case, I can't whitelist the 3rd-gen Pentium M on my T43, nor can I get
> ThinkPad owners to test it for us on 1st and 2nd-gen Pentium M and report
> back.
>
Which specific erratum are you referring to, here? The "WC becomes UC"
erratum? I don't think there is a sane testcase for it since it needs a
very complicated setup to trigger.
-hpa
WARNING: multiple messages have this Message-ID (diff)
From: "H. Peter Anvin" <hpa@zytor.com>
To: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: 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
Subject: Re: MTRR use in drivers
Date: Sun, 23 Jun 2013 15:10:36 -0700 [thread overview]
Message-ID: <51C7725C.5090801@zytor.com> (raw)
In-Reply-To: <20130623215649.GA1288@khazad-dum.debian.net>
On 06/23/2013 02:56 PM, Henrique de Moraes Holschuh wrote:
>
> And as far as I could find from Intel's not-that-complete public
> "specification updates", we are applying the errata workaround to a few more
> processors than strictly required, but since I have no idea how to write a
> test case, I can't whitelist the 3rd-gen Pentium M on my T43, nor can I get
> ThinkPad owners to test it for us on 1st and 2nd-gen Pentium M and report
> back.
>
Which specific erratum are you referring to, here? The "WC becomes UC"
erratum? I don't think there is a sane testcase for it since it needs a
very complicated setup to trigger.
-hpa
next prev parent reply other threads:[~2013-06-23 22:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-21 5:00 MTRR use in drivers H. Peter Anvin
2013-06-23 6:35 ` Brice Goglin
2013-06-23 14:07 ` H. Peter Anvin
2013-06-23 14:07 ` H. Peter Anvin
2013-06-23 19:29 ` Henrique de Moraes Holschuh
2013-06-23 20:02 ` H. Peter Anvin
2013-06-23 20:30 ` Dave Airlie
2013-06-23 20:38 ` H. Peter Anvin
2013-06-23 20:54 ` Dave Airlie
2013-06-23 20:58 ` H. Peter Anvin
2013-06-23 21:27 ` Dave Airlie
2013-06-23 21:27 ` Dave Airlie
2013-06-23 23:09 ` Andy Lutomirski
2013-06-23 21:56 ` Henrique de Moraes Holschuh
2013-06-23 22:10 ` H. Peter Anvin [this message]
2013-06-23 22:10 ` H. Peter Anvin
2013-06-24 0:02 ` Henrique de Moraes Holschuh
2013-06-24 0:31 ` H. Peter Anvin
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