From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 21 Feb 2014 18:38:34 +0100 (CET) Received: from localhost.localdomain ([127.0.0.1]:42260 "EHLO linux-mips.org" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S6822287AbaBURib2qCMR (ORCPT ); Fri, 21 Feb 2014 18:38:31 +0100 Received: from scotty.linux-mips.net (localhost.localdomain [127.0.0.1]) by scotty.linux-mips.net (8.14.7/8.14.4) with ESMTP id s1LHcTfY019020; Fri, 21 Feb 2014 18:38:29 +0100 Received: (from ralf@localhost) by scotty.linux-mips.net (8.14.7/8.14.7/Submit) id s1LHcToI019019; Fri, 21 Feb 2014 18:38:29 +0100 Date: Fri, 21 Feb 2014 18:38:29 +0100 From: Ralf Baechle To: Markos Chandras Cc: linux-mips@linux-mips.org, Paul Burton Subject: Re: [PATCH 3/5] MIPS: Set page size to 16KB for malta SMP defconfigs Message-ID: <20140221173829.GI19285@linux-mips.org> References: <1392904828-12969-1-git-send-email-markos.chandras@imgtec.com> <1392904828-12969-4-git-send-email-markos.chandras@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1392904828-12969-4-git-send-email-markos.chandras@imgtec.com> User-Agent: Mutt/1.5.21 (2010-09-15) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 39366 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On Thu, Feb 20, 2014 at 02:00:26PM +0000, Markos Chandras wrote: > From: Paul Burton > > For Malta defconfigs which may run on an SMP configuration without > hardware cache anti-aliasing, a 16KB page size is a safer default. > Most notably at the moment it will avoid cache aliasing issues for > multicore proAptiv systems. You're aware that this may cause binary compatibility issues with old userland? So far the defaults were chosen to maximise compatibility over performance. Ralf