Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755768AbXLNPYU (ORCPT ); Fri, 14 Dec 2007 10:24:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753124AbXLNPYL (ORCPT ); Fri, 14 Dec 2007 10:24:11 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:34166 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752894AbXLNPYJ (ORCPT ); Fri, 14 Dec 2007 10:24:09 -0500 Date: Fri, 14 Dec 2007 15:16:20 +0000 From: Alan Cox To: "David P. Reed" Cc: David Newall , Rene Herman , Paul Rolland , "H. Peter Anvin" , Krzysztof Halasa , Pavel Machek , Andi Kleen , linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar , rol@witbe.net Subject: Re: RFC: outb 0x80 in inb_p, outb_p harmful on some modern AMD64 with MCP51 laptops Message-ID: <20071214151620.3469115a@the-village.bc.nu> In-Reply-To: <4761E169.4020407@reed.com> References: <475879CD.9080006@reed.com> <20071207160439.71b7f46a@the-village.bc.nu> <20071209125458.GB4381@ucw.cz> <20071209165908.GA15910@one.firstfloor.org> <20071209212513.GC24284@elf.ucw.cz> <475CBDD7.5050602@keyaccess.nl> <475DE37F.20706@davidnewall.com> <475DE6F4.80702@zytor.com> <475DEB23.1000304@davidnewall.com> <20071211084059.3d03e11d@tux.DEF.witbe.net> <475E5D4B.8020101@keyaccess.nl> <475E7DC2.4060509@davidnewall.com> <475E8D91.20201@keyaccess.nl> <475E95A3.3070801@davidnewall.com> <20071211142552.2ae6ea9a@the-village.bc.nu> <47605E4B.6050904@davidnewall.com> <20071212230030.00511c3f@the-village.bc.nu> <47612FF9.8060402@reed.com> <20071213132112.66d59aa2@the-village.bc.nu> <4761E169.4020407@reed.com> X-Mailer: Claws Mail 2.10.0 (GTK+ 2.10.14; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 553 Lines: 13 On Thu, 13 Dec 2007 20:50:33 -0500 "David P. Reed" wrote: > Simulating 1 microsecond delays (assuming LPC meets that goal for 0x80) > is "absolutely correct" for devices provided on PCI-X running on 3 GHz > or greater machines? Yes - the LPC bus clock doesn't change for the CPU clock. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/