Date: Tue, 30 Sep 2003 14:39:36 +0100
From: Jamie Lokier <jamie@shareable.org>
To: Dave Jones <davej@redhat.com>, akpm@osdl.org, torvalds@osdl.org,
       linux-kernel@vger.kernel.org, richard.brunner@amd.com
Subject: Re: [PATCH] Mutilated form of Andi Kleen's AMD prefetch errata patch
Message-ID: <20030930133936.GA28876@mail.shareable.org>
References: <20030930073814.GA26649@mail.jlokier.co.uk> <20030930132211.GA23333@redhat.com>
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Dave Jones wrote:
> This looks to be completely gratuitous. Why disable it when we have the
> ability to work around it ?

Because some people expressed a wish to have kernels that don't
contain the workaround code, be they P4-optimised or 486-optimised
kernels.  After all we have kernels that don't contain the F00F
workaround too.  I'm not pushing this patch as is, it's for
considering the pros and cons.

CONFIG_X86_PREFETCH_WORKAROUND makes more makes more sense with the
recently available "split every x86 CPU into individually selectable
options" patch, and, on reflection, that's probably where it belongs.

-- Jamie
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