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=-2.2 required=3.0 tests=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 A6D18C4CECE for ; Mon, 14 Oct 2019 15:02:00 +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 7485C2133F for ; Mon, 14 Oct 2019 15:02:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7485C2133F 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 225A326CC; Mon, 14 Oct 2019 15:02:00 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id EA44A26C7 for ; Mon, 14 Oct 2019 15:01:57 +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 CA827831 for ; Mon, 14 Oct 2019 15:01:56 +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 EDF51337; Mon, 14 Oct 2019 08:01:55 -0700 (PDT) Received: from [10.1.32.128] (e121487-lin.cambridge.arm.com [10.1.32.128]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 91D953F68E; Mon, 14 Oct 2019 08:01:54 -0700 (PDT) Subject: Re: [BUG] dma-ranges, reserved memory regions, dma_alloc_coherent: possible bug? To: Robin Murphy , Daniele Alessandrelli , Christoph Hellwig , Marek Szyprowski References: From: Vladimir Murzin Message-ID: Date: Mon, 14 Oct 2019 16:01:52 +0100 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: Content-Language: en-US Cc: iommu@lists.linux-foundation.org, alexandre.torgue@st.com, 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 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org T24gMTAvMTQvMTkgMjo1NCBQTSwgUm9iaW4gTXVycGh5IHdyb3RlOgo+IE9uIDEzLzEwLzIwMTkg MTU6MjgsIERhbmllbGUgQWxlc3NhbmRyZWxsaSB3cm90ZToKPj4gSGksCj4+Cj4+IEl0IGxvb2tz 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