From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031244AbXDJRbK (ORCPT ); Tue, 10 Apr 2007 13:31:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031242AbXDJRbJ (ORCPT ); Tue, 10 Apr 2007 13:31:09 -0400 Received: from outbound-dub.frontbridge.com ([213.199.154.16]:6959 "EHLO outbound3-dub-R.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031210AbXDJRbH (ORCPT ); Tue, 10 Apr 2007 13:31:07 -0400 X-BigFish: VP X-Server-Uuid: 5FC0E2DF-CD44-48CD-883A-0ED95B391E89 Date: Tue, 10 Apr 2007 19:31:10 +0200 From: "Andreas Herrmann" To: linux-kernel@vger.kernel.org, "Andi Kleen" Subject: Re: [PATCH] x86_64: prevent auto select of mwait_idle for AMD CPUs Message-ID: <20070410173110.GB12476@alberich.amd.com> References: <20070410172425.GE24680@alberich.amd.com> MIME-Version: 1.0 In-Reply-To: <20070410172425.GE24680@alberich.amd.com> User-Agent: mutt-ng/devel-r804 (Linux) X-OriginalArrivalTime: 10 Apr 2007 17:30:41.0523 (UTC) FILETIME=[F6424430:01C77B95] X-WSS-ID: 6A05164F3283679603-01-01 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Actually I have also written patches to clear the MWAIT flag for AMD CPUs. But after re-reading of specs (also Intel's specs) I preferred to keep the MWAIT flag but to introduce a MWAIT_NO_CSTATE flag. I think this is the cleaner solution. Regards, Andreas