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From: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [PATCH 2.6.21-rt7] PowerPC: fix clockevents for classic CPUs
Date: Thu, 24 May 2007 21:10:15 +0200
To: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: linuxppc-dev@ozlabs.org, mingo@elte.hu, tglx@linutronix.de,
	linux-kernel@vger.kernel.org
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>  	 * We must write a positive value to the decrementer to clear
> -	 * the interrupt on the IBM 970 CPU series.  In periodic mode,
> -	 * this happens when the decrementer gets reloaded later, but
> -	 * in one-shot mode, we have to do it here since an event handler
> -	 * may skip loading the new value...
> +	 * the interrupt on POWER4+ compatible CPUs.

No, it is *not* only on POWER4+ compatible CPUs.  Sigh.


Segher