Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932239AbWIIOpm (ORCPT ); Sat, 9 Sep 2006 10:45:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932231AbWIIOpl (ORCPT ); Sat, 9 Sep 2006 10:45:41 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:46002 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S932233AbWIIOp3 (ORCPT ); Sat, 9 Sep 2006 10:45:29 -0400 Subject: Re: Opinion on ordering of writel vs. stores to RAM From: Alan Cox To: Linus Torvalds Cc: Paul Mackerras , linux-kernel@vger.kernel.org, benh@kernel.crashing.org, akpm@osdl.org, segher@kernel.crashing.org, davem@davemloft.net In-Reply-To: References: <17666.8433.533221.866510@cargo.ozlabs.ibm.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Sat, 09 Sep 2006 16:08:10 +0100 Message-Id: <1157814490.6877.26.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 Content-Length: 463 Lines: 13 Ar Gwe, 2006-09-08 am 19:42 -0700, ysgrifennodd Linus Torvalds: > It shouldn't. It's too expensive. Well it does because way back when you said it should 8) __writel/__readl were the ones allowed to be un-ordered. - 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/