From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBFD8C43381 for ; Mon, 18 Feb 2019 07:06:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AE258218AD for ; Mon, 18 Feb 2019 07:06:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="aFUjVT0/"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=piap.pl header.i=@piap.pl header.b="L4cGp+KE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AE258218AD Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=piap.pl Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:In-Reply-To: Date:References:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=XYRD0f6APjKJ/8bIC3RRn0MTXD5qIsuD1g/3bR/sYzk=; b=aFUjVT0/TZbys6 fp6F9+xFr7or5YOT9cR69cJyO9ck5RiyarNKRYqb68qp5LpNldHbUrnS0FSro5NEii3iroUouGjza nthBmqfgcvwEpd5o1ILQ4yDA1LpbcY2afB4HKrsEuqAb7JVaI7vSpdt6kDWzkqjMaejqTILEoSh8o MVPiVU/6t2jdHPLOsVZn/MfVl/sMojs39a6kzN0pw2D72LXY4p2Hb+sQZIFawu3PQjnCtwQzYkY6f beA9/hkTo+C2VRc9QYFXzno2kRE1WLpzhpxiCFfhdaDWIUwBGWdKEewa5FgVh4KYzuZaTKF809Ca6 XL3l5tmL5c6KgqpKks8w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gvd0Q-0000xX-8R; Mon, 18 Feb 2019 07:06:22 +0000 Received: from ni.piap.pl ([195.187.100.4]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gvd0M-0000x3-Er for linux-arm-kernel@lists.infradead.org; Mon, 18 Feb 2019 07:06:20 +0000 Received: from t19.piap.pl (OSB1819.piap.pl [10.0.9.19]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ni.piap.pl (Postfix) with ESMTPSA id C173644044D; Mon, 18 Feb 2019 08:06:08 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 ni.piap.pl C173644044D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=piap.pl; s=mail; t=1550473569; bh=u2QX6DdHcVeGxsUzVmNUTal/UllzCHE0QcfmhEalglg=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=L4cGp+KEocWcAuZpSgAO2LfIU2u6/vjsuAFgJmbubxhTvZ5CFUYDrNt/0G4lZZCBm i0zhnGUitBppKDnOR8bU4pgnWTm5RHWWBcWRuOrKGXGPWSWvRVmkM+6VvhdJ2Uv2A+ U2tKwpJBUQZebWdbmcBOSfKm0sJ71R/k/oTxilJw= From: khalasa@piap.pl (Krzysztof =?utf-8?Q?Ha=C5=82asa?=) To: Marc Zyngier Subject: Re: [PATCH 04/17 v1] irqchip: Add driver for IXP4xx References: <20190203214205.13594-1-linus.walleij@linaro.org> <20190203214205.13594-5-linus.walleij@linaro.org> <20190211221156.10036ad8@why.wild-wind.fr.eu.org> Date: Mon, 18 Feb 2019 08:06:07 +0100 In-Reply-To: <20190211221156.10036ad8@why.wild-wind.fr.eu.org> (Marc Zyngier's message of "Mon, 11 Feb 2019 22:11:56 +0000") Message-ID: MIME-Version: 1.0 X-KLMS-Rule-ID: 1 X-KLMS-Message-Action: clean X-KLMS-AntiSpam-Lua-Profiles: 135812 [Feb 18 2019] X-KLMS-AntiSpam-Version: 5.8.6.0 X-KLMS-AntiSpam-Envelope-From: khalasa@piap.pl X-KLMS-AntiSpam-Rate: 0 X-KLMS-AntiSpam-Status: not_detected X-KLMS-AntiSpam-Method: none X-KLMS-AntiSpam-Info: LuaCore: 234 234 6084fb9491110ca2901942eb14874f7e6341a62a, {Tracking_DKIM, one}, {Tracking_marketers, sender}, {Tracking_ sender_matches_from}, {Tracking_subj_double_letters}, Auth:dkim=pass header.d=piap.pl X-KLMS-AntiSpam-Interceptor-Info: scan successful X-KLMS-AntiPhishing: Clean, 2019/02/15 09:48:34 X-KLMS-AntiVirus: Kaspersky Security 8.0 for Linux Mail Server, version 8.0.1.721, bases: 2019/02/18 02:09:00 #9581995 X-KLMS-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190217_230618_827533_FF012E6E X-CRM114-Status: UNSURE ( 8.58 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jason Cooper , Arnd Bergmann , Linus Walleij , Olof Johansson , Thomas Gleixner , Imre Kaloz , Tim Harvey , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Marc Zyngier writes: > It's spelled BE32! ;-) I vaguely remember doing some of that on vulcan, > but that's a decade ago, and I've paged it out... ;-) Right. It's also called value-preserving (where the "value" must 32-bit and aligned on 32-bit boundary) or (double) word invariant. Since most of these accesses are natural 32-bit registers and (almost) none are ASCII/byte-style, it makes sense. IIRC the PCI has its own rules, though. -- Krzysztof Halasa Industrial Research Institute for Automation and Measurements PIAP Al. Jerozolimskie 202, 02-486 Warsaw, Poland _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel