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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, 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 8146DC433DB for ; Thu, 28 Jan 2021 07:57:52 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 5765164DD6 for ; Thu, 28 Jan 2021 07:57:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5765164DD6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id A15C586C0F; Thu, 28 Jan 2021 07:57:50 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LAlvwVeD1Pw0; Thu, 28 Jan 2021 07:57:49 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id 8E25D86C0E; Thu, 28 Jan 2021 07:57:49 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 63308C0FA7; Thu, 28 Jan 2021 07:57:49 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 3BF24C013A for ; Thu, 28 Jan 2021 07:57:47 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 23B792DE25 for ; Thu, 28 Jan 2021 07:57:47 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4NM6toMLs7ns for ; Thu, 28 Jan 2021 07:57:45 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by silver.osuosl.org (Postfix) with ESMTPS id A1E5220009 for ; Thu, 28 Jan 2021 07:57:45 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 18E2068C4E; Thu, 28 Jan 2021 08:57:38 +0100 (CET) Date: Thu, 28 Jan 2021 08:57:37 +0100 From: ". Christoph Hellwig" To: Ricardo Ribalda Subject: Re: [PATCH v3 5/6] media: uvcvideo: Use dma_alloc_noncontiguos API Message-ID: <20210128075737.GA28741@lst.de> References: <20201208071320.GA1667627@google.com> <20201209111639.GB22806@lst.de> <20210111083614.GA27589@lst.de> <20210126170659.GA9104@lst.de> <20210127155608.GA20272@lst.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Cc: Sergey Senozhatsky , Sergey Senozhatsky , Linux Doc Mailing List , Linux Kernel Mailing List , IOMMU DRIVERS , Linux Media Mailing List , Mauro Carvalho Chehab , Robin Murphy , ". Christoph Hellwig" X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 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="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Wed, Jan 27, 2021 at 10:35:02PM +0100, Ricardo Ribalda wrote: > I have used the current API here: > > https://git.kernel.org/pub/scm/linux/kernel/git/ribalda/linux.git/log/?h=uvc-noncontiguous > > And I think the result is very clean. Great work! > > I have tested it in X86 and in arm64, with similar performance as the > previous patchset. > > Maybe you want to cherry pick that commit into your series I can also > send the patch to the list for review if you prefer so. > > At least in 5.11 rc5 I the same dmadev worked in arm64 and x86. Given that Sergey mentioned the v4l patchset needs more work I'll use your commit as the example for sending out my series. Thanks for all the work! _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu