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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 E342DC433DF for ; Mon, 18 May 2020 13:42:44 +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 B30AB207FB for ; Mon, 18 May 2020 13:42:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="e9gVsHL9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B30AB207FB 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-arm-kernel-bounces+infradead-linux-arm-kernel=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=cH9jzIxKscwV+PJllSpZuZHtwpMR2xE/KkEM53P03sM=; b=e9gVsHL9yF/K/c QR3JsOk6egUtnBbFCsrjdSkUoPEc56G9zT/0NisG5+F3sV+n3NrGpR5D/MTYZire7bEK57yFxicVK s2utqti86UzYiio/8vpm1LwIuLJ9JXJJr2/qvlSSPFNud/CZ3ep7lKqVDCp8PFyQvLA+wzhkfgqW0 YkVRIMeAd2bBu2h8ma48Yk3Aaxo+Qd0Dzuz1TDxPwp0g8kWV1eKPjxECW8KrQhRUTFX6eTIpLh/gX uGz05eBKhmxv+cGSNt5rWzBsLxNtfvKIzapidNOUhuv5g3drQSswTqAmYOS7NpAUOfEQFoskkT7Ub 1K24Q4WO48pAPS718PaQ==; 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 1jag2W-0006Zk-CN; Mon, 18 May 2020 13:42:44 +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 1jag2T-0006Y1-Hg; Mon, 18 May 2020 13:42:43 +0000 Received: by theia.8bytes.org (Postfix, from userid 1000) id 336D3386; Mon, 18 May 2020 15:42:31 +0200 (CEST) Date: Mon, 18 May 2020 15:42:29 +0200 From: Joerg Roedel To: Yong Wu Subject: Re: [PATCH] iommu/mediatek-v1: Add def_domain_type Message-ID: <20200518134229.GD18353@8bytes.org> References: <1589530123-30240-1-git-send-email-yong.wu@mediatek.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1589530123-30240-1-git-send-email-yong.wu@mediatek.com> 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-20200518_064241_730534_5050681F X-CRM114-Status: GOOD ( 11.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: youlin.pei@mediatek.com, anan.sun@mediatek.com, srv_heupstream@mediatek.com, Will Deacon , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, Matthias Brugger , Robin Murphy , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 15, 2020 at 04:08:43PM +0800, Yong Wu wrote: > The MediaTek V1 IOMMU is arm32 whose default domain type is > IOMMU_DOMAIN_UNMANAGED. Add this to satisfy the bus_iommu_probe to > enter "probe_finalize". > > The iommu framework will create a iommu domain for each a device. > But all the devices share a iommu domain here, thus we skip all the > other domains in the "attach_device" except the domain we create > internally with arm_iommu_create_mapping. > > Also a minor change: in the attach_device, "data" always is not null. > Remove "if (!data) return". > > Signed-off-by: Yong Wu > --- > a. rebase on linux-next. > b. After this patch and fixed the mutex issue(locally I only move > mutex_unlock(&group->mutex) before __iommu_group_dma_attach(group)), > the mtk_iommu_v1.c could work normally. > --- > drivers/iommu/mtk_iommu_v1.c | 16 +++++++++++----- > 1 file changed, 11 insertions(+), 5 deletions(-) Applied, thanks. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel