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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 D5DD8CA9EBC for ; Mon, 28 Oct 2019 10:59:08 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 A7D5720873 for ; Mon, 28 Oct 2019 10:59:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A7D5720873 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 6CEC710BD; Mon, 28 Oct 2019 10:59:08 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id A29E010B9 for ; Mon, 28 Oct 2019 10:59:07 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id EAD9514D for ; Mon, 28 Oct 2019 10:59:06 +0000 (UTC) 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 588041F1; Mon, 28 Oct 2019 03:59:06 -0700 (PDT) Received: from [10.1.31.199] (e121487-lin.cambridge.arm.com [10.1.31.199]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C3A1F3F71E; Mon, 28 Oct 2019 03:59:04 -0700 (PDT) Subject: Re: [BUG] dma-ranges, reserved memory regions, dma_alloc_coherent: possible bug? To: Alexandre Torgue , Robin Murphy , Daniele Alessandrelli , Christoph Hellwig , Marek Szyprowski References: <417fa080-08f9-9f35-687b-c0b82a61628d@arm.com> <376133e3-25f2-ffe7-ef9f-4613388b2bf7@arm.com> <84747008-85e9-e71a-b9ad-cefcc6c0f661@st.com> <3305c91e-e630-b7fd-4c6f-598583504d67@arm.com> <6b024e69-f612-6850-8a04-9b3049549092@st.com> From: Vladimir Murzin Message-ID: <2153b504-8c98-6c43-6ae3-9fb355d88417@arm.com> Date: Mon, 28 Oct 2019 10:59:03 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <6b024e69-f612-6850-8a04-9b3049549092@st.com> Content-Language: en-US Cc: iommu@lists.linux-foundation.org, Arnd Bergmann X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 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