Date: Tue, 13 Sep 2005 07:53:03 -0700 (PDT)
From: Zwane Mwaikambo <zwane@arm.linux.org.uk>
To: Andi Kleen <ak@muc.de>
cc: Ashok Raj <ashok.raj@intel.com>, Andrew Morton <akpm@osdl.org>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [patch 13/14] x86_64: Use common functions in cluster and physflat
 mode
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On Tue, 13 Sep 2005, Andi Kleen wrote:

> > We should probably remove the !HOTPLUG case and just use the mask version
> > for all cases <=8 CPUS, use physflat or the cluster mode for >8cpus as 
> > the case may be, instead of defaulting to sequence_IPI which seems
> > a little overkill for the intended purpose.
> 
> Or just always use physflat and remove the logical flat case? 
> That seems cleanest to me. Any objections? 

My objection is the number of APIC writes required to issue IPIs to a 
group of processors, however i do understand that it would help 
maintainability and testing coverage if we reduce the number of operating 
modes, are you proposing physflat for _everything_ ?

Thanks,
	Zwane

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