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Date: Mon, 10 Apr 2006 17:53:39 +0530
From: Srivatsa Vaddagiri <vatsa@in.ibm.com>
To: Kumar Gala <galak@kernel.crashing.org>
Subject: Re: [PATCH 2/4] tickless idle cpu: Skip ticks when CPU is idle
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On Fri, Apr 07, 2006 at 09:16:58AM -0500, Kumar Gala wrote:
> >+config NO_IDLE_HZ
> >+	depends on EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_MAPLE)
> >+	bool "Switch off timer ticks on idle CPUs"
> >+	help
> >+	  Switches the HZ timer interrupts off when a CPU is idle.
> >+
> 
> any reason not to provide this for all 6xx class processors?

I think the same patch would work mostly for 6xx cpus as well. I however
dont think have any hardware to test it. If I am not mistaken, to
support 6xx CPUs, only ppc6xx_idle needs to be modified to call stop_hz_timer 
before going into power-save mode?


-- 
Regards,
vatsa