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From: Andrew Morton <akpm@linux-foundation.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: andreas.herrmann3@amd.com, mingo@elte.hu, hpa@zytor.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: enable hpet=force for AMD SB400
Date: Fri, 9 May 2008 16:55:01 -0700	[thread overview]
Message-ID: <20080509165501.a0fdb29d.akpm@linux-foundation.org> (raw)
In-Reply-To: <alpine.LFD.1.10.0805100140490.3197@apollo.tec.linutronix.de>

On Sat, 10 May 2008 01:42:30 +0200 (CEST)
Thomas Gleixner <tglx@linutronix.de> wrote:

> On Fri, 9 May 2008, Andrew Morton wrote:
> > On Fri, 9 May 2008 11:49:11 +0200
> > Andreas Herrmann <andreas.herrmann3@amd.com> wrote:
> > 
> > > x86: enable hpet=force for ATI SB400
> > 
> > Sigh.
> > 
> > > Add quirk to allow forced usage of HPET on ATI SB400.
> > > I stumbled over machines where HPET is enabled but not reported
> > > by BIOS.
> > 
> > Is there no way in which we can probe for or identify this condition,
> > rather than hoping that the user will find out about this boot option?
> 
> I'd love to have a sane solution for that, but looking at the rate of
> HPET wreckage since we increased the usage of HPET I'm happy to have
> this as an opt in thingy.
> 

Well we don't have to auto-enable the hpet.  Simply adding a loud "you
should try the hpet=force option" printk would help a lot of people.


  reply	other threads:[~2008-05-09 23:55 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-09  9:49 [PATCH] x86: enable hpet=force for AMD SB400 Andreas Herrmann
2008-05-09 23:37 ` Andrew Morton
2008-05-09 23:42   ` Thomas Gleixner
2008-05-09 23:55     ` Andrew Morton [this message]
2008-05-10  0:02       ` Thomas Gleixner
2008-05-10 20:40       ` Thomas Gleixner
2008-05-11  3:02       ` Alistair John Strachan
2008-05-11  9:03         ` Thomas Gleixner
2008-06-24 16:00           ` Andreas Herrmann
2008-07-04 18:55           ` Andreas Herrmann

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