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DateSat, 10 May 2008 02:02:51 +0200 (CEST)
FromThomas Gleixner <>
SubjectRe: [PATCH] x86: enable hpet=force for AMD SB400
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On Fri, 9 May 2008, Andrew Morton wrote:
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.

Fair enough. I look into that.

Thanks,
tglx




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