From: Andi Kleen <andi@firstfloor.org>
To: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Jesse Barnes <jesse.barnes@intel.com>,
Andi Kleen <andi@firstfloor.org>,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
Justin Piszcz <jpiszcz@lucidpixels.com>,
Yinghai Lu <yhlu.kernel@gmail.com>
Subject: Re: [PATCH] trim memory not covered by WB MTRRs
Date: Tue, 26 Jun 2007 17:03:48 +0200 [thread overview]
Message-ID: <20070626150348.GB7877@one.firstfloor.org> (raw)
In-Reply-To: <200706252030.52611.jbarnes@virtuousgeek.org>
On Mon, Jun 25, 2007 at 08:30:52PM -0700, Jesse Barnes wrote:
> Oh, and FYI I've seen new systems with a default mapping type of WB, with a
> few uncached holes for MMIO. That means PAT will be absolutely required on
> those systems if we want to use WC for the framebuffer or other memory.
Why? As long as there are still MTRRs free you could use them for
WC even in this setup.
-Andi
next prev parent reply other threads:[~2007-06-26 15:03 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-25 21:34 [PATCH] trim memory not covered by WB MTRRs Jesse Barnes
2007-06-25 21:45 ` Justin Piszcz
2007-06-25 22:01 ` Andrew Morton
2007-06-25 22:05 ` Jesse Barnes
2007-06-25 22:29 ` Justin Piszcz
2007-06-25 23:34 ` Andi Kleen
2007-06-25 23:36 ` Jesse Barnes
2007-06-26 0:54 ` Eric W. Biederman
2007-06-26 3:29 ` Jesse Barnes
2007-06-26 3:30 ` Jesse Barnes
2007-06-26 15:03 ` Andi Kleen [this message]
2007-06-26 15:07 ` Jesse Barnes
2007-06-26 15:18 ` Jesse Barnes
2007-06-26 15:39 ` Andi Kleen
2007-06-26 15:54 ` Yinghai Lu
2007-06-26 16:06 ` Eric W. Biederman
2007-06-26 17:38 ` Andi Kleen
2007-06-26 18:55 ` Yinghai Lu
2007-06-26 15:02 ` Andi Kleen
2007-06-26 15:38 ` Jesse Barnes
2007-06-27 10:44 ` Pim Zandbergen
2007-06-27 11:22 ` Andi Kleen
2007-06-27 11:40 ` Pim Zandbergen
2007-06-27 11:44 ` Justin Piszcz
2007-06-27 14:22 ` Mauro Giachero
2007-06-27 15:04 ` Jesse Barnes
2007-06-27 16:00 ` Pim Zandbergen
2007-06-27 16:07 ` Jesse Barnes
2007-06-27 16:22 ` Jesse Barnes
2007-06-27 17:02 ` Pim Zandbergen
2007-06-27 17:06 ` Jesse Barnes
2007-06-27 17:17 ` Pim Zandbergen
2007-07-05 12:12 ` Pavel Machek
2007-07-05 12:16 ` Justin Piszcz
[not found] <8tyOc-8f0-17@gated-at.bofh.it>
2007-06-13 6:52 ` Bodo Eggert
2007-06-13 16:19 ` Dave Jones
[not found] <fa.i7vJP3lxWAlyOLjcsqOWPKlixD8@ifi.uio.no>
[not found] ` <fa.3ijVoClbWNHWrMhDABWjNPxp+wo@ifi.uio.no>
[not found] ` <fa.ZqgSvRGj/scOmd0AwnU6e21Gcwc@ifi.uio.no>
[not found] ` <fa.oNsjw768fkDpx3oef91fjAQs1Iw@ifi.uio.no>
[not found] ` <fa.x8ZCt4n0yXI1llhRq4wfjNfqK4w@ifi.uio.no>
2007-06-08 1:57 ` Robert Hancock
-- strict thread matches above, loose matches on Subject: below --
2007-06-07 22:30 Jesse Barnes
2007-06-07 22:50 ` Justin Piszcz
2007-06-07 22:53 ` Justin Piszcz
2007-06-07 23:00 ` Justin Piszcz
2007-06-08 8:20 ` Justin Piszcz
2007-06-12 14:50 ` Pavel Machek
2007-06-12 15:29 ` Jesse Barnes
2007-06-12 15:48 ` Andi Kleen
2007-06-12 21:30 ` Pavel Machek
2007-06-12 21:31 ` Justin Piszcz
2007-06-12 21:38 ` Ray Lee
2007-06-12 21:55 ` Pavel Machek
2007-06-13 0:25 ` Ray Lee
2007-06-13 8:22 ` Pavel Machek
2007-06-14 19:38 ` Pim Zandbergen
2007-06-14 20:26 ` Justin Piszcz
2007-06-14 21:18 ` Jesse Barnes
2007-06-14 21:21 ` Justin Piszcz
2007-06-14 21:26 ` Jesse Barnes
2007-06-15 10:21 ` Pim Zandbergen
2007-06-15 16:20 ` Jesse Barnes
2007-06-21 14:24 ` Pim Zandbergen
2007-06-21 14:28 ` Justin Piszcz
2007-06-25 16:31 ` Pim Zandbergen
2007-06-25 16:34 ` Justin Piszcz
2007-06-15 10:17 ` Pim Zandbergen
2007-06-15 10:34 ` Justin Piszcz
2007-06-15 17:28 ` Jesse Barnes
2007-06-20 13:55 ` Pim Zandbergen
2007-06-21 19:40 ` Yinghai Lu
2007-06-21 19:56 ` Jesse Barnes
2007-06-06 19:29 Jesse Barnes
2007-06-06 20:26 ` Justin Piszcz
2007-06-06 20:28 ` Jesse Barnes
2007-06-06 20:31 ` Jesse Barnes
2007-06-06 20:37 ` Justin Piszcz
2007-06-06 20:50 ` Jesse Barnes
2007-06-06 21:26 ` Justin Piszcz
2007-06-06 21:53 ` Justin Piszcz
2007-06-06 22:03 ` Justin Piszcz
2007-06-06 22:05 ` Jesse Barnes
2007-06-06 22:07 ` Justin Piszcz
2007-06-06 22:13 ` Justin Piszcz
2007-06-06 22:24 ` Jesse Barnes
2007-06-06 22:26 ` Justin Piszcz
2007-06-06 22:28 ` Jesse Barnes
2007-06-06 22:31 ` Justin Piszcz
2007-06-06 22:35 ` Justin Piszcz
2007-06-06 22:37 ` Randy Dunlap
2007-06-06 22:46 ` Justin Piszcz
2007-06-06 22:54 ` Justin Piszcz
2007-06-06 23:11 ` Randy Dunlap
2007-06-06 23:15 ` Justin Piszcz
2007-06-06 23:34 ` Jesse Barnes
2007-06-07 8:10 ` Justin Piszcz
2007-06-06 22:39 ` Justin Piszcz
2007-06-06 22:57 ` Justin Piszcz
2007-06-06 23:20 ` Jesse Barnes
2007-06-06 23:24 ` Justin Piszcz
2007-06-06 23:27 ` Jesse Barnes
2007-06-07 8:51 ` Andi Kleen
2007-06-07 8:53 ` Justin Piszcz
2007-06-07 9:55 ` Satyam Sharma
2007-06-07 17:33 ` Jesse Barnes
2007-06-07 7:45 ` Eric W. Biederman
2007-06-07 17:30 ` Jesse Barnes
2007-06-08 23:13 ` Eric W. Biederman
2007-06-12 15:39 ` Jesse Barnes
2007-06-07 8:16 ` Andi Kleen
2007-06-07 17:35 ` Jesse Barnes
2007-06-07 17:40 ` Justin Piszcz
2007-06-07 14:41 ` Pavel Machek
2007-06-08 0:20 ` Andrew Morton
2007-06-08 1:33 ` Jesse Barnes
2007-06-08 21:15 ` Andrew Morton
2007-06-08 21:28 ` Jesse Barnes
2007-06-13 1:11 ` Eric W. Biederman
2007-06-13 2:29 ` Jesse Barnes
2007-06-13 22:19 ` Eric W. Biederman
2007-06-20 11:22 ` Helge Hafting
2007-06-20 14:37 ` Andi Kleen
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