linux-kernel - Re: [patch] make pit clocksource continuous

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Message-ID: <46474975.1080204@aknet.ru>
Date:	Sun, 13 May 2007 21:23:01 +0400
From:	Stas Sergeev <stsp@...et.ru>
To:	tglx@...utronix.de
CC:	Linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: [patch] make pit clocksource continuous

Hello.

Thomas Gleixner wrote:
>> Does this mean that on even an older
>> boards (without acpi at all) the hrtimers
>> won't work?
> Not if PIT is the only clocksource available.
So you mean it can work without both the
pm_timer and hpet? Sorry for bothering you
too much, but I am trying to use the hrtimers
in my driver module, so I'd like to know all
the corner-cases.

How can I test that situation when the hrtimers
work only with PIT? Apparently disabling the
pm_timer and hpet in config doesn't help testing
it at all, since it simply refuses to work then.

Should I use hrtimer_get_res() to see if the
hrtimers are available, or is there any better way?

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