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=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 9DA07C4338F for ; Wed, 11 Aug 2021 14:57:12 +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 4070560FC0 for ; Wed, 11 Aug 2021 14:57:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4070560FC0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0KpqAfoBbJIF4WXfnmM+sGYkLnRDYaqmaFXESienTwc=; b=F+bQEteYFdV+BM CGBXm2WER6B8V/RN22N+Qj5oIV4cCv0KnlP1z5Oe2MaQ8/LG8F+w5M+nTALOuwXrd7gzPYuJ8MDa6 WrXEvE3If6wzapXFthDnle/XFKp0qydOHD2NrN9rEsItIyHi7qLiI4SXBSMLKEDDpD2N6yP0q0Qr2 Jl8p94l7LA/BZ66TFGzEzrqzrsRkq4RCBUfJ39Az88HzvvFntAG1Bu2vPrp0971syfywTQHNIKgcq rE9F14mr3FVnmPn4y3EhvyTBeEgsvGfe1hesRIXRHMg+loF9Eg8hYchOdA9zshRG26xX0SKUneLKw Kp6Pwo3s6LVF0cBB3uqQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDpdb-007UTL-M5; Wed, 11 Aug 2021 14:55:23 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDpdX-007USk-AX for linux-arm-kernel@lists.infradead.org; Wed, 11 Aug 2021 14:55:20 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C12CD1063; Wed, 11 Aug 2021 07:55:15 -0700 (PDT) Received: from lpieralisi (e121166-lin.cambridge.arm.com [10.1.196.255]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3901A3F718; Wed, 11 Aug 2021 07:55:14 -0700 (PDT) Date: Wed, 11 Aug 2021 15:55:08 +0100 From: Lorenzo Pieralisi To: Christoph Hellwig Cc: Ard Biesheuvel , Linux Kernel Mailing List , "Rafael J. Wysocki" , ACPI Devel Maling List , Linux ARM , Veronika kabatova , Robin Murphy , Will Deacon , Hanjun Guo , Sudeep Holla , Catalin Marinas Subject: Re: [PATCH v2 1/3] ACPI: osl: Add __force attribute in acpi_os_map_iomem() cast Message-ID: <20210811145508.GA3650@lpieralisi> References: <20210726100026.12538-1-lorenzo.pieralisi@arm.com> <20210802152359.12623-2-lorenzo.pieralisi@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210811_075519_436914_53843E21 X-CRM114-Status: GOOD ( 15.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Aug 11, 2021 at 03:08:24PM +0100, Christoph Hellwig wrote: > On Wed, Aug 11, 2021 at 12:40:28PM +0200, Ard Biesheuvel wrote: > > The whole problem we are solving here is that ACPI, being based on > > x86, conflates MMIO mappings with memory mappings, and has been using > > the same underlying infrastructure for either. > > So let's fix that problem instead of papering over it. Patch (3) in this series is a fix - I would ask whether it makes sense to merge patches (2-3) now and think about reworking the current ACPI IO/MEM mapping API later, it can be an invasive change for a fix, assuming we agree on how to rework the ACPI IO/MEM mapping API. Lorenzo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel