linux-kernel - Re: [PATCH] RFC: nomadik: expand timesource to 63 bits

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Message-ID: <alpine.LFD.2.00.1011121130350.2900@localhost6.localdomain6>
Date:	Fri, 12 Nov 2010 11:31:18 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Linus Walleij <linus.walleij@...ricsson.com>
cc:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>,
	john stultz <johnstul@...ibm.com>,
	Rabin VINCENT <rabin.vincent@...ricsson.com>,
	Nicolas Pitre <nico@...xnic.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Colin Cross <ccross@...gle.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] RFC: nomadik: expand timesource to 63 bits

On Fri, 12 Nov 2010, Linus Walleij wrote:

> Uwe Kleine-König wrote:
> 
> > Instead of implementing sched_clock for each architecture seperatly,
> > wouldn't it be nice to have a generic sched_clock that uses the
> > architecture's clocksource?  I tried to implement that some time ago,
> > but tglx shoot it down because of locking problems.
> 
> I was and still am a big fan of this approach, I am willing to help
> testing it if you want to dust off this patch set...

sched_clock is not necessarily the same as the current clocksource.

Thanks,

	tglx