From: Daniel Walker <dwalker@fifo99.com>
To: Johannes Weiner <jw@emlix.com>
Cc: Chris Zankel <chris@zankel.net>,
linux-kernel@vger.kernel.org,
Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [patch 3/3] xtensa: ccount clocksource
Date: Tue, 03 Mar 2009 09:55:45 -0800 [thread overview]
Message-ID: <1236102945.5937.1.camel@desktop> (raw)
In-Reply-To: <E1LeXJ1-00071v-Dy@mailer.emlix.com>
On Tue, 2009-03-03 at 16:30 +0100, Johannes Weiner wrote:
> @ -29,6 +30,19 @@ unsigned long ccount_per_jiffy; /* per
> unsigned long nsec_per_ccount; /* nsec per ccount increment
> */
> #endif
>
> +static cycle_t ccount_read(void)
> +{
> + return (cycle_t)get_ccount();
> +}
> +
> +static struct clocksource ccount_clocksource = {
> + .name = "ccount",
> + .rating = 200,
> + .read = ccount_read,
> + .mask = CLOCKSOURCE_MASK(32),
> + .mult = NSEC_PER_CCOUNT,
> +};
You don't want to use the shift field?
Daniel
next prev parent reply other threads:[~2009-03-03 17:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-03 15:30 [patch 0/3] xtensa generic time Johannes Weiner
2009-03-03 15:30 ` [patch 1/3] xtensa: use generic sched_clock() Johannes Weiner
2009-03-03 15:30 ` [patch 2/3] xtensa: remove platform rtc hooks Johannes Weiner
2009-03-03 15:30 ` [patch 3/3] xtensa: ccount clocksource Johannes Weiner
2009-03-03 17:55 ` Daniel Walker [this message]
2009-03-03 19:54 ` Johannes Weiner
2009-03-03 21:36 ` Daniel Walker
2009-03-04 20:26 ` Johannes Weiner
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