Date: Wed, 12 Dec 2007 23:00:30 +0000
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: David Newall <david@davidnewall.com>
Cc: Rene Herman <rene.herman@keyaccess.nl>, Paul Rolland <rol@as2917.net>,
       "H. Peter Anvin" <hpa@zytor.com>, Krzysztof Halasa <khc@pm.waw.pl>,
       Pavel Machek <pavel@ucw.cz>, Andi Kleen <andi@firstfloor.org>,
       "David P. Reed" <dpreed@reed.com>, linux-kernel@vger.kernel.org,
       Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
       rol@witbe.net
Subject: Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64
 with MCP51 laptops
Message-ID: <20071212230030.00511c3f@the-village.bc.nu>
In-Reply-To: <47605E4B.6050904@davidnewall.com>
References: <475879CD.9080006@reed.com>
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	<475DE37F.20706@davidnewall.com>
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> Yes, it's now clear that all of this is so.  Regrettably, it's used in 
> dozens of drivers, most having nothing to do with an ISA/LPC bus.
> 
> If it really is specific to the ISA architecture, then it should only be 
> used in architecture specific code.

ISA/LPC is not architecture specific. In fact ISA/LPC bus components get
everywhere because the PC market drives the cost per unit for those
components down to nearly nothing.
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