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Date: Wed, 10 Sep 2003 18:44:14 -0700
From: Andrew Morton <akpm@osdl.org>
To: Andi Kleen <ak@suse.de>
Cc: richard.brunner@amd.com, linux-kernel@vger.kernel.org, torvalds@osdl.org
Subject: Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata
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Andi Kleen <ak@suse.de> wrote:
>
>  +static int is_prefetch(struct pt_regs *regs, unsigned long addr)

Can we make this code go away if the configured CPU is, say, Intel?
(I couldn't find a sane CONFIG_ setting to use for this).

It might be vaguely interesting to add a user-visible counter for this
event? If someone somehow comes up with an application which hits the fault
frequently they will take a big performance hit.