From: Arjan van de Ven <arjan@linux.intel.com>
To: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Thomas Schlichter <thomas.schlichter@web.de>,
linux-kernel@vger.kernel.org,
Thomas Hellstrom <thellstrom@vmware.com>
Subject: Re: [RFC Patch] use MTRR for write combining if PAT is not available
Date: Sun, 11 Oct 2009 11:54:50 -0700 [thread overview]
Message-ID: <4AD229FA.7020104@linux.intel.com> (raw)
In-Reply-To: <20091011185114.GB18578@khazad-dum.debian.net>
Henrique de Moraes Holschuh wrote:
> On Fri, 09 Oct 2009, Arjan van de Ven wrote:
>>> I've found a problem with X.org not setting up MTRR for the
>>> framebuffer memory. After I investigated I think this is not a
>>> X.org problem, but a kernel issue.
>> is there any CPU left that does not support PAT ?
>
> A few million of them. Like every Centrino laptop out there, unless the
> kernel blacklist for PAT on Intel CPUs is wrong.
afaik it is extremely conservative right now. FAR too much so.
next prev parent reply other threads:[~2009-10-11 18:55 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-10 1:22 [RFC Patch] use MTRR for write combining if PAT is not available Thomas Schlichter
2009-10-10 4:24 ` Arjan van de Ven
2009-10-10 8:31 ` Thomas Schlichter
2009-10-10 15:45 ` Arjan van de Ven
2009-10-10 17:50 ` Roland Dreier
2009-10-11 7:40 ` Ingo Molnar
2009-10-11 9:56 ` Thomas Schlichter
2009-10-11 18:51 ` Henrique de Moraes Holschuh
2009-10-11 18:54 ` Arjan van de Ven [this message]
2009-10-11 20:19 ` Henrique de Moraes Holschuh
2009-10-12 18:09 ` Robert Hancock
[not found] <200910122032.52168.thomas.schlichter@web.de>
2009-10-12 19:16 ` Thomas Hellstrom
2009-10-12 19:45 ` Thomas Schlichter
[not found] ` <1255378684.2063.5.camel@gaiman.anholt.net>
2009-10-13 21:05 ` Thomas Schlichter
-- strict thread matches above, loose matches on Subject: below --
2009-10-13 7:34 Jan Beulich
2009-10-13 21:29 ` Thomas Schlichter
2009-10-14 8:13 ` Jan Beulich
2009-10-14 19:14 ` Thomas Schlichter
2009-10-15 7:48 ` Jan Beulich
2009-10-17 19:48 ` Thomas Schlichter
2009-10-19 9:16 ` Jan Beulich
2009-10-19 13:44 ` Suresh Siddha
2009-10-19 13:54 ` Ingo Molnar
2009-10-19 13:36 ` Konrad Rzeszutek Wilk
2009-10-19 14:47 Thomas Schlichter
2009-10-20 19:54 ` Thomas Schlichter
2009-10-21 11:57 ` Ingo Molnar
2009-10-19 14:59 Thomas Schlichter
2009-10-19 15:31 ` Ingo Molnar
2009-10-19 21:49 ` Suresh Siddha
2009-10-20 20:35 ` Thomas Schlichter
2009-10-20 21:59 ` Suresh Siddha
2009-10-21 11:52 ` Ingo Molnar
2009-10-19 15:07 Thomas Schlichter
2009-10-19 15:10 Thomas Schlichter
2009-10-19 15:28 ` Ingo Molnar
2009-10-21 13:45 Thomas Schlichter
2009-10-21 14:11 ` Jan Beulich
2009-10-21 17:35 ` Ingo Molnar
2009-10-21 20:01 ` Thomas Schlichter
2009-10-22 9:53 ` Suresh Siddha
2009-10-22 15:34 ` Eric Anholt
2009-10-22 21:47 ` Suresh Siddha
2009-10-22 23:10 ` Jesse Barnes
2009-10-23 0:11 ` Suresh Siddha
2009-10-23 1:53 ` Eric Anholt
2009-10-23 4:31 ` Jesse Barnes
2009-10-23 4:58 ` Suresh Siddha
2009-10-23 7:24 ` Thomas Schlichter
2009-10-23 14:24 ` Suresh Siddha
2009-10-23 14:37 ` Ingo Molnar
2009-10-23 4:33 ` Suresh Siddha
2009-10-21 14:38 Thomas Schlichter
2009-10-21 15:14 ` Jan Beulich
2009-10-22 12:08 Thomas Schlichter
2009-10-22 12:14 ` H. Peter Anvin
2009-10-22 13:26 ` Suresh Siddha
2009-10-22 13:35 ` Suresh Siddha
2009-10-22 14:27 Thomas Schlichter
2009-10-22 14:41 Thomas Schlichter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4AD229FA.7020104@linux.intel.com \
--to=arjan@linux.intel.com \
--cc=hmh@hmh.eng.br \
--cc=linux-kernel@vger.kernel.org \
--cc=thellstrom@vmware.com \
--cc=thomas.schlichter@web.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.