Message-ID: <4778052E.8000808@zytor.com>
Date: Sun, 30 Dec 2007 12:53:02 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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CC: Ingo Molnar <mingo@elte.hu>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Rene Herman <rene.herman@keyaccess.nl>, dpreed@reed.com,
       Islam Amer <pharon@gmail.com>, Pavel Machek <pavel@ucw.cz>,
       Ingo Molnar <mingo@redhat.com>, Andi Kleen <andi@firstfloor.org>,
       Thomas Gleixner <tglx@linutronix.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override
References: <9FXbU-3M4-11@gated-at.bofh.it> <9G2Om-4hg-1@gated-at.bofh.it> <9G7O3-3O2-7@gated-at.bofh.it> <9G8qN-4TX-13@gated-at.bofh.it> <E1J92JB-00013N-P3@be1.7eggert.dyndns.org>
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Bodo Eggert wrote:
> 
> I've never seen code which would do that, and it was not suggested by any
> tutorial I ever saw. I'd expect any machine to break on all kinds of software
> if it required this. The only thing I remember being warned about is writing
> the index and the data register at the same time using outw, because that
> would write both registers at the same time on 16-bit-cards.
> 

And we use that, and have been for 15 years.  I haven't seen any screams 
of pain about it.

	-hpa
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