From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750743AbWGFSRo (ORCPT ); Thu, 6 Jul 2006 14:17:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750810AbWGFSRo (ORCPT ); Thu, 6 Jul 2006 14:17:44 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:2732 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S1750743AbWGFSRn (ORCPT ); Thu, 6 Jul 2006 14:17:43 -0400 Subject: Re: + edac-new-opteron-athlon64-memory-controller-driver.patch added to -mm tree From: Alan Cox To: Andi Kleen Cc: "Eric W. Biederman" , Doug Thompson , akpm@osdl.org, mm-commits@vger.kernel.org, norsk5@xmission.com, linux-kernel@vger.kernel.org In-Reply-To: <20060706180826.GA95795@muc.de> References: <20060704092358.GA13805@muc.de> <1152007787.28597.20.camel@localhost.localdomain> <20060704113441.GA26023@muc.de> <1152137302.6533.28.camel@localhost.localdomain> <20060705220425.GB83806@muc.de> <20060706130153.GA66955@muc.de> <20060706165159.GB66955@muc.de> <20060706180826.GA95795@muc.de> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Thu, 06 Jul 2006 19:34:58 +0100 Message-Id: <1152210898.13734.12.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.2 (2.6.2-1.fc5.5) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Ar Iau, 2006-07-06 am 20:08 +0200, ysgrifennodd Andi Kleen: > > No. There is a status report that tells you which pieces of hardware > > your memory controller sees. It is just a simple list. > > Ok but that could be also done easily in user space that reads > PCI config space. No need for a complicated kernel driver at all. The same is true of writing a file system and disk driver so I'm a bit confused why you think poking around in PCI space from user space is an argument or given how often such stuff breaks and how messy it gets (eg X) that we want to encourage it