linux-kernel - Re: [PATCH 1/3] x86: Add UV watchlist bios call

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Message-ID: <20081022143452.GA201004@sgi.com>
Date:	Wed, 22 Oct 2008 09:34:53 -0500
From:	Russ Anderson <rja@....com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	tglx@...utronix.de, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/3] x86: Add UV watchlist bios call

On Wed, Oct 22, 2008 at 08:20:43AM +0200, Ingo Molnar wrote:
> 
> * Russ Anderson <rja@....com> wrote:
> 
> > Add UV bios calls to allocate and free watchlists.
> 
> hm, what is a watchlist?

It is a hardware feature in the SGI UV hardware, used as part
of the GRU message queue support.

It is used by drivers/misc/sgi-xp/xpc_uv.c.  Dean Nelson submitted
a patch yesterday that uses the watchlist bios call.

http://marc.info/?l=linux-kernel&m=122462426019304&w=2

Thanks,
-- 
Russ Anderson, OS RAS/Partitioning Project Lead  
SGI - Silicon Graphics Inc          rja@....com
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