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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 7CFC3C2D0EA for ; Wed, 8 Apr 2020 15:00:38 +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 4E6D0206C0 for ; Wed, 8 Apr 2020 15:00:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DwByE+eE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E6D0206C0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject: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=kIOdKRTbwKokZxBViAwq2xToQJYk2BrDUPZgVEGBpUs=; b=DwByE+eE1agdd0 4AK8Ju6wRN/wNdy3uozFjyxZk7KKzIw7CkShXTm+9Gch9zWyqBUy8ZIXxKM4nP6uo/Uyq+mAJGuKF ocQHw+DKp+8tnPAgGsl498CvNgm0pRvelKamfHAmH7bvckgcPxPuY7ZUtC8qks/k2a20JNfZ83RHA TIp7YezbmcuIOLolJjgp01QvCs1NFO28DPsiBbCnckMj8t0XtgkOqjq/2ttW5zyZnwlJJ0JcGfqfI zh7CzLRL8AS/kP4Xl2+9cA7OLOSULgyAwhbcclPBmyRn3SmctIxf0beVyk7Nelj7VMafSmpBExUpU ZDHwxm79EvGiilrnI7nw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jMCBr-0005y2-WC; Wed, 08 Apr 2020 15:00:32 +0000 Received: from 8bytes.org ([2a01:238:4383:600:38bc:a715:4b6d:a889] helo=theia.8bytes.org) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jMCBe-0004nr-N2; Wed, 08 Apr 2020 15:00:22 +0000 Received: by theia.8bytes.org (Postfix, from userid 1000) id 7190D387; Wed, 8 Apr 2020 17:00:16 +0200 (CEST) Date: Wed, 8 Apr 2020 17:00:15 +0200 From: Joerg Roedel To: Marek Szyprowski Subject: Re: [RFC PATCH 31/34] iommu/exynos: Create iommu_device in struct exynos_iommu_owner Message-ID: <20200408150014.GM3103@8bytes.org> References: <20200407183742.4344-1-joro@8bytes.org> <20200407183742.4344-32-joro@8bytes.org> <449e7f16-e719-9617-ec92-63b82c0bc33f@samsung.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200408_080020_014371_E80C1FD7 X-CRM114-Status: GOOD ( 10.12 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Heiko Stuebner , Bjorn Andersson , linux-tegra@vger.kernel.org, Thierry Reding , Will Deacon , Jean-Philippe Brucker , linux-samsung-soc@vger.kernel.org, Rob Clark , Krzysztof Kozlowski , Jonathan Hunter , linux-rockchip@lists.infradead.org, Andy Gross , Joerg Roedel , linux-s390@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-mediatek@lists.infradead.org, Matthias Brugger , virtualization@lists.linux-foundation.org, Gerald Schaefer , David Woodhouse , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Kukjin Kim , Robin Murphy , Lu Baolu Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Hi Marek, On Wed, Apr 08, 2020 at 04:23:05PM +0200, Marek Szyprowski wrote: > I need a place to initialize properly all the structures for the given > master (IOMMU client device, the one which performs DMA operations). That could be in the probe_device() call-back, no? > I tried to move all the initialization from xlate() to device_probe(), > but such approach doesn't work. device_probe() is exynos_sysmmu_probe(), then yes, this is called before any of the xlate() calls are made. Would it work to keep the iommu_device structures in the sysmmus and also create them for the owners? This isn't really a nice solution but should work the the IOMMU driver until there is a better way to fix this. Regards, Joerg _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek