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From: "H. Peter Anvin" <hpa@zytor.com>
To: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
	Gabriel C <nix.or.die@googlemail.com>,
	Mika Fischer <mika.fischer@zoopnet.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v2
Date: Thu, 01 May 2008 14:33:32 -0700	[thread overview]
Message-ID: <481A372C.5080808@zytor.com> (raw)
In-Reply-To: <86802c440805011431i88dec8aiadcb143b5f7648b@mail.gmail.com>

Yinghai Lu wrote:
>>  Overall, I'm feeling there is something really completely wrong if this
>> needs manual tunables of any sort.
> 
> the problem is BIOS set MTRR like BIG WB - SOME SAMLL UC to spare mtrr regs.
> 
> but later X server driver want to set some range to WC. that already
> is fallen in UC...

That's not the point.  I understand you want to flatten the layout.  The 
point is: why do you need manual tunables for the algorithm to do the 
right thing?

	-hpa

  reply	other threads:[~2008-05-01 21:34 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-28  6:37 [PATCH] x86: mtrr cleanup for converting continuous to discrete layout Yinghai Lu
2008-04-28  9:06 ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v2 Yinghai Lu
2008-04-28 13:08   ` Ingo Molnar
2008-04-28 13:49     ` Arjan van de Ven
2008-04-28 15:28       ` Mika Fischer
2008-04-28  5:50         ` Arjan van de Ven
2008-04-28 16:01         ` Gabriel C
2008-04-28 16:28           ` Mika Fischer
2008-04-28 19:44   ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v3 Yinghai Lu
2008-04-28 20:15     ` Ingo Molnar
2008-04-28 20:18       ` Yinghai Lu
2008-04-28 20:29         ` Ingo Molnar
2008-04-28 20:16     ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v4 Yinghai Lu
2008-04-28 22:05       ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v5 Yinghai Lu
2008-04-28 22:36         ` Randy Dunlap
2008-04-28 22:47           ` Yinghai Lu
2008-04-29  2:42         ` Andrew Morton
2008-04-29  3:01           ` Yinghai Lu
     [not found]         ` <200804290157.30651.yhlu.kernel@gmail.com>
2008-04-29  8:59           ` [PATCH 2/2] x86: fix trimming e820 with MTRR holes Yinghai Lu
2008-04-29 11:35             ` Ingo Molnar
2008-04-29 17:18               ` Yinghai Lu
2008-04-29 17:20                 ` Yinghai Lu
2008-04-30  3:25             ` [PATCH] x86: fix trimming e820 with MTRR holes. - fix Yinghai Lu
2008-04-30 12:09               ` Ingo Molnar
2008-04-29  9:00         ` [PATCH 1/2] x86: mtrr cleanup for converting continuous to discrete layout v7 Yinghai Lu
2008-04-29  9:47           ` Gabriel C
2008-04-29 10:30             ` Yinghai Lu
2008-04-29 10:56               ` Yinghai Lu
2008-04-29 11:26                 ` Ingo Molnar
2008-04-29 11:51                 ` Gabriel C
2008-04-29 17:11                   ` Yinghai Lu
2008-04-29 20:25                     ` Gabriel C
2008-04-29 21:49                       ` Yinghai Lu
2008-04-29 23:56                         ` Gabriel C
2008-04-30  0:06                           ` Gabriel C
2008-04-30  0:38                             ` Yinghai Lu
2008-04-30  1:02                               ` Gabriel C
2008-04-30  3:00                                 ` Yinghai Lu
2008-04-30  3:29                                   ` Yinghai Lu
2008-04-30  4:12                                     ` Gabriel C
2008-04-30  4:25                                       ` Yinghai Lu
2008-04-30 12:04                                         ` Gabriel C
2008-04-30 16:26                                           ` Yinghai Lu
2008-04-30  0:13                           ` Yinghai Lu
2008-04-29 10:52           ` [PATCH 1/2] x86: mtrr cleanup for converting continuous to discrete layout v8 Yinghai Lu
2008-04-29 13:07             ` Ingo Molnar
2008-04-29 17:25               ` Yinghai Lu
2008-04-29 20:46             ` Randy Dunlap
2008-04-29 21:54               ` Yinghai Lu
2008-04-30  3:25             ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v8 - fix Yinghai Lu
2008-04-30 12:09               ` Ingo Molnar
2008-05-01  8:00               ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect Yinghai Lu
2008-05-01 11:45                 ` Gabriel C
2008-05-02  0:06                   ` Yinghai Lu
2008-05-02  0:29                     ` Gabriel C
2008-05-02  0:35                       ` Yinghai Lu
2008-05-02  1:18                         ` Gabriel C
2008-05-02  1:55                           ` Yinghai Lu
2008-05-01 12:09                 ` Mika Fischer
2008-05-01 16:35                   ` Yinghai Lu
2008-05-01 16:59                     ` Mika Fischer
2008-05-01 17:40                       ` Yinghai Lu
2008-05-01 15:09                 ` Randy Dunlap
2008-05-01 16:38                   ` Yinghai Lu
2008-05-01 18:57                 ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v2 Yinghai Lu
2008-05-01 19:42                   ` H. Peter Anvin
2008-05-01 21:02                     ` Yinghai Lu
2008-05-01 21:10                       ` H. Peter Anvin
2008-05-01 21:20                         ` Yinghai Lu
2008-05-01 21:26                           ` H. Peter Anvin
2008-05-01 21:31                             ` Yinghai Lu
2008-05-01 21:33                               ` H. Peter Anvin [this message]
2008-05-01 21:44                                 ` Yinghai Lu
2008-05-01 21:49                                   ` H. Peter Anvin
2008-05-01 22:52                                     ` Yinghai Lu
2008-05-01 22:57                                       ` H. Peter Anvin
2008-05-01 23:10                                         ` Yinghai Lu
2008-05-02  0:52                   ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v3 Yinghai Lu
2008-05-02  9:40                     ` [PATCH] x86: mtrr cleanup for converting continuous to discrete - auto detect v4 Yinghai Lu
2008-04-29 19:00         ` [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v5 Eric W. Biederman
2008-04-29 20:04           ` Yinghai Lu
2008-04-29 20:29             ` Eric W. Biederman
2008-04-29 21:57               ` Yinghai Lu
2008-04-29 22:09                 ` Ingo Molnar
2008-04-29 22:18                   ` Yinghai Lu
2008-04-29 22:14                 ` Eric W. Biederman
2008-04-29 22:54                   ` Thomas Gleixner
2008-04-30  1:16                     ` Eric W. Biederman
2008-04-30  9:57                       ` Alan Cox

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