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=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 164A2C31E40 for ; Fri, 9 Aug 2019 09:35:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E12FD20C01 for ; Fri, 9 Aug 2019 09:35:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cogentembedded-com.20150623.gappssmtp.com header.i=@cogentembedded-com.20150623.gappssmtp.com header.b="VcVeBlNE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406202AbfHIJfT (ORCPT ); Fri, 9 Aug 2019 05:35:19 -0400 Received: from mail-lf1-f65.google.com ([209.85.167.65]:43377 "EHLO mail-lf1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406161AbfHIJfT (ORCPT ); Fri, 9 Aug 2019 05:35:19 -0400 Received: by mail-lf1-f65.google.com with SMTP id c19so69069512lfm.10 for ; Fri, 09 Aug 2019 02:35:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cogentembedded-com.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=ZhZIKbPy1ojcvmbIo8mwd7oy4V33VIdwk5j1j74WW9w=; b=VcVeBlNEjS4wa/wbZ2Jy74bbWsbslezZzRDF5L5UlZPXuFgueVv76Apfbc48KCG7go O+JybRtPA55YOzc+rFrImDZn5Uzf4Iypjkw1Q2Jrzsy02VozkkgOmiMWFsyG/90IeJID s7g3Gev/hUXSaIrCTrM7IhGUouQ5uAYJrQU3W3SKx3qZhdrx3pME6i2VY+znRnPsMDZ6 IqCV+5+rqLIKHOuF9OdviK0y/AZ3VputL3vLRILFoF8nj2+pSMBc+S3cQ85tH9TO2N3S m8AsLb+p6B1SXzPU1ej0Ppenwk9xbIlPPfP789O8926HVT26h04IVIjFQkPvwouSfOGR RQ1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=ZhZIKbPy1ojcvmbIo8mwd7oy4V33VIdwk5j1j74WW9w=; b=ZjqE6N/95o1dt9sf4GYFZqBViKAmr0Y0zHqnoJfEYJzXeH6A5TeOUoT7sIyp3q7cpT OqFSNhfD/0/p6rTlrz/e9Qp6OLquwyu1Qgfu9VoUOrR2Z4W/mTu1LzKaHgRdh/blk5zp 943PLM7FnpgGelrks+4QRf+v+7QtQvCBeJAduHUSzxLtAydy/gsRBpL7PGqvEtO1S1hK q4np4cKBuM04xMY9jYGtdYi7ZI/ulG1N6Ko2nilzHdy0EmcmLPhumTq5p/mUzD8WRnUi BglwNsnZlaN93bJaDW7SW+e/1oYjgV/TiZmGfJo/GEreJhmPF0Pte3X6R3ADQp2uWZ3F ADzQ== X-Gm-Message-State: APjAAAVNtftRgqrFPKjQ7IdPNcV8Hx5m2Xd1BhKrJZx7OO/H8XG1FKJF dm3OsTfJIMJ75FMpRxe7XlO7Qo/tOEIfMw== X-Google-Smtp-Source: APXvYqzlq7k/M37b+stHUNm1aCq6nUomyYeuBENCXNdKlF0iST4RYWqRChfyDEB29cAPzX6iW+LIMA== X-Received: by 2002:ac2:5981:: with SMTP id w1mr12123067lfn.85.1565343316741; Fri, 09 Aug 2019 02:35:16 -0700 (PDT) Received: from ?IPv6:2a00:1fa0:44bf:fcca:cd2a:e5bf:7de5:cd? ([2a00:1fa0:44bf:fcca:cd2a:e5bf:7de5:cd]) by smtp.gmail.com with ESMTPSA id t21sm19110864ljg.60.2019.08.09.02.35.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 09 Aug 2019 02:35:15 -0700 (PDT) Subject: Re: [PATCH 6/8] arm-nommu: call dma_mmap_from_dev_coherent directly To: Christoph Hellwig , iommu@lists.linux-foundation.org, Marek Szyprowski Cc: Vladimir Murzin , Takashi Iwai , Helge Deller , Robin Murphy , Michal Simek , linux-arm-kernel@lists.infradead.org, linux-m68k@lists.linux-m68k.org, linux-parisc@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, linux-kernel@vger.kernel.org References: <20190808160005.10325-1-hch@lst.de> <20190808160005.10325-7-hch@lst.de> From: Sergei Shtylyov Message-ID: <247fabce-5284-8140-c492-fe49e1683ca6@cogentembedded.com> Date: Fri, 9 Aug 2019 12:35:00 +0300 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190808160005.10325-7-hch@lst.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08.08.2019 19:00, Christoph Hellwig wrote: > Ther is no need to go through dma_common_mmap for the arm-nommu There. :-) > dma mmap implementation as the only possible memory not handled above > could be that from the per-device coherent pool. > > Signed-off-by: Christoph Hellwig [...] MBR, Sergei