From: Thomas Schlichter <thomas.schlichter@web.de>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jan Beulich <JBeulich@novell.com>,
Suresh Siddha <suresh.b.siddha@intel.com>,
arjan@linux.intel.com, dri-devel@lists.sourceforge.net,
hancockrwd@gmail.com, hmh@hmh.eng.br, hpa@zytor.com,
jbarnes@virtuousgeek.org, jeremy.fitzhardinge@citrix.com,
linux-kernel@vger.kernel.org, mingo@redhat.com,
tglx@linutronix.de, thellstrom@vmware.com, tj@kernel.org,
venkatesh.pallipadi@intel.com, x86@kernel.org,
yinghai@kernel.org
Subject: Re: [RFC Patch] use MTRR for write combining if PAT is not available
Date: Tue, 20 Oct 2009 22:35:12 +0200 [thread overview]
Message-ID: <200910202235.12277.thomas.schlichter@web.de> (raw)
In-Reply-To: <20091019153134.GA18198@elte.hu>
Ingo Molnar wrote:
> * Thomas Schlichter <thomas.schlichter@web.de> wrote:
> > > or Perhaps just try to add mtrr only for the pci mmap case like the
> > > 4th patch in this series..
> >
> > I'd prefer this! ;-)
>
> Hm, we could perhaps do that - but i think we should only do that on
> systems that have PAT disabled.
The patch I sent should do exactly that.
> Which brings up the question of how to properly QA such a narrow segment
> of the market. Maybe disabling CONFIG_X86_PAT should enable that logic
> too.
When CONFIG_X86_PAT is disabled, pat_enabled is 0, and thus my new code should
be active. Or do I miss something?
What do you think about the latest version of my patch series I just sent?
Kind regards,
Thomas
next prev parent reply other threads:[~2009-10-20 20:35 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-19 14:59 [RFC Patch] use MTRR for write combining if PAT is not available Thomas Schlichter
2009-10-19 15:31 ` Ingo Molnar
2009-10-19 21:49 ` Suresh Siddha
2009-10-20 20:35 ` Thomas Schlichter [this message]
2009-10-20 21:59 ` Suresh Siddha
2009-10-21 11:52 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2009-10-22 14:41 Thomas Schlichter
2009-10-22 14:27 Thomas Schlichter
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
2009-10-21 14:38 Thomas Schlichter
2009-10-21 15:14 ` Jan Beulich
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
2009-10-19 15:10 Thomas Schlichter
2009-10-19 15:28 ` Ingo Molnar
2009-10-19 15:07 Thomas Schlichter
2009-10-19 14:47 Thomas Schlichter
2009-10-20 19:54 ` Thomas Schlichter
2009-10-21 11:57 ` Ingo Molnar
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
[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
2009-10-10 1:22 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
2009-10-11 20:19 ` Henrique de Moraes Holschuh
2009-10-12 18:09 ` Robert Hancock
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