linux-kernel - Re: [PATCH] x86: Disable HPET MSI on ATI SB700/SB800

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Message-ID: <4B61A2F1.4090605@compro.net>
Date:	Thu, 28 Jan 2010 09:45:05 -0500
From:	Mark Hounschell <markh@...pro.net>
To:	Borislav Petkov <borislav.petkov@....com>
CC:	Andreas Herrmann <andreas.herrmann3@....com>, dmarkh@....rr.com,
	Yuhong Bao <yuhongbao_386@...mail.com>,
	venkatesh.pallipadi@...el.com, andi@...stfloor.org,
	Linus Torvalds <torvalds@...ux-foundation.org>, alain@...ff.lu,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: Disable HPET MSI on ATI SB700/SB800

On 01/28/2010 08:41 AM, Borislav Petkov wrote:
> On Thu, Jan 28, 2010 at 08:25:23AM -0500, Mark Hounschell wrote:
>> On 01/28/2010 04:17 AM, Mark Hounschell wrote:
>>> On 01/25/2010 12:10 PM, Andreas Herrmann wrote:
>>>> On Fri, Jan 22, 2010 at 11:21:06PM -0800, Yuhong Bao wrote:
>>>>>
>>>>>> HPET MSI on platforms with ATI SB700/SB800 as they seem to have some
>>>>>> side-effects on floppy DMA. Do not use HPET MSI on such platforms.
>>>>
>>>> Argh, will see what information I can find about this problem ...
>>>>
>>>>> I think somebody from AMD should review the situation.Clearly
>>>>   something is happening inside their southbridge.CCing Andreas
>>>>   Herrmann from AMD.
>>>>
>>>> I have the feeling that this problem should rather be fixed with a DMI
>>>> quirk instead of disabling HPET MSI for the entire chipset.
>>>>
>>>> Was the latest available BIOS installed on the affected system?
>>>>
>>>
>>> You mean "systems" of different manufactures?  I will check today. Due to
>>> mis configured filters I didn't see this until today. Sorry.
>>>
>>> Mark
>>>
>>
>> My BIOS were below rev on all my affected boards but updating did not help
>> with the problem.
> 
> Hi,
> 
> can you post the BIOS vendors of the boards along with the respective
> BIOS versions?
> 
> Thanks.
> 

DFI  DK-790FXB-M3H5 MB using AWARD bios D7SDA09.BIN (10/09/2009)
BIOSTAR TA790GXB A2+ using AMI bios 78DDA928.BST  (09/28/09)

Regards
Mark
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