From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755301AbcAORxf (ORCPT ); Fri, 15 Jan 2016 12:53:35 -0500 Received: from mx2.suse.de ([195.135.220.15]:34472 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755208AbcAORx2 (ORCPT ); Fri, 15 Jan 2016 12:53:28 -0500 Subject: Re: [PATCH] dell-wmi: Stop storing pointers to DMI tables From: Jean Delvare To: Andy Lutomirski Cc: Pali =?ISO-8859-1?Q?Roh=E1r?= , Andy Lutomirski , platform-driver-x86@vger.kernel.org, linux-kernel , stable In-Reply-To: References: <119170b95d373bc943eb4f16818239bac9fa6c59.1451832667.git.luto@kernel.org> <20160112142538.GB11560@pali> <20160115142719.36eea015@endymion.delvare> Content-Type: text/plain; charset="UTF-8" Organization: Suse Linux Date: Fri, 15 Jan 2016 18:53:25 +0100 Message-ID: <1452880405.4941.0.camel@chaos.site> Mime-Version: 1.0 X-Mailer: Evolution 2.28.2 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andy, Le Friday 15 January 2016 à 08:27 -0800, Andy Lutomirski a écrit : > FWIW, especially if we consider mapping it persistently, maybe we > should use ioremap_prot and map it both cached and ro. > > Actually, switching to a cached mapping regardless of persistence > could noticeably help boot times. UC accesses are very, very slow. Sorry if it is obvious for everybody else, but what does "UC accesses" mean? -- Jean Delvare SUSE L3 Support