linux-kernel - Re: [patch] x86: unify/rewrite SMP TSC sync code

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Message-Id: <1164476473.3147.59.camel@laptopd505.fenrus.org>
Date:	Sat, 25 Nov 2006 18:41:13 +0100
From:	Arjan van de Ven <arjan@...radead.org>
To:	Wink Saville <wink@...ille.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Andi Kleen <ak@...e.de>,
	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [patch] x86: unify/rewrite SMP TSC sync code


> Actually, we need to ask the CPU/System makers to provide a system wide
> timer that is independent of the given CPU. I would expect it quite simple

they exist. They're called pmtimer and hpet.
pmtimer is port io. hpet is memory mapped io.




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