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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 7BEBAC83009 for ; Wed, 29 Apr 2020 13:39:32 +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 3254F206D6 for ; Wed, 29 Apr 2020 13:39:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Eua+welq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3254F206D6 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=psk5MJpYUgq5XyRzpgPnzEplU3i7JqI0nUUHbDiAfhw=; b=Eua+welqsXWravrLjCo7UDQXmq c2MNDvDKDNbSP5fdQGcprFqq7/GgNS2q9k3BrFGqiWilgaTZRrLE7JNhbb9OJRB3ELeru+ODAH/v0 5uaWiH9ZZOPk7H2OQKakXjCdV8NiZ6XAgtuZ8i38XEQBimSDnskcblvoyo7FNN+2OnwpMgH2xKVMD EHzGnJRsw0NBjHXPUnl4vEiSHGWz5+Typqtg39N4+tNNAB6zqcOHcvh4EWm63t1HuneLjVVsoC+us Zmug/1F/L7wS584S83wTTQBu+9hZT2C+RRUvMWZZy4tAznZjrjV8h5g8OCgUbMRXCLbMTiM1YaRk3 mgnBikUw==; 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 1jTmvq-0008Uw-I4; Wed, 29 Apr 2020 13:39:22 +0000 Received: from 8bytes.org ([81.169.241.247] helo=theia.8bytes.org) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jTmuQ-0006O8-A6; Wed, 29 Apr 2020 13:37:59 +0000 Received: by theia.8bytes.org (Postfix, from userid 1000) id 7A310F07; Wed, 29 Apr 2020 15:37:40 +0200 (CEST) From: Joerg Roedel To: Joerg Roedel , Will Deacon , Robin Murphy , Marek Szyprowski , Kukjin Kim , Krzysztof Kozlowski , David Woodhouse , Lu Baolu , Andy Gross , Bjorn Andersson , Matthias Brugger , Rob Clark , Heiko Stuebner , Gerald Schaefer , Thierry Reding , Jonathan Hunter , Jean-Philippe Brucker Subject: [PATCH v3 27/34] iommu/renesas: Convert to probe/release_device() call-backs Date: Wed, 29 Apr 2020 15:37:05 +0200 Message-Id: <20200429133712.31431-28-joro@8bytes.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200429133712.31431-1-joro@8bytes.org> References: <20200429133712.31431-1-joro@8bytes.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200429_063754_578174_1B3B8D66 X-CRM114-Status: GOOD ( 17.70 ) 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: linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Drake , linux-rockchip@lists.infradead.org, iommu@lists.linux-foundation.org, Joerg Roedel , linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org, virtualization@lists.linux-foundation.org, jonathan.derrick@intel.com MIME-Version: 1.0 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 From: Joerg Roedel Convert the Renesas IOMMU driver to use the probe_device() and release_device() call-backs of iommu_ops, so that the iommu core code does the group and sysfs setup. Signed-off-by: Joerg Roedel --- drivers/iommu/ipmmu-vmsa.c | 60 +++++++++++++------------------------- 1 file changed, 20 insertions(+), 40 deletions(-) diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 310cf09feea3..fb7e702dee23 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -805,24 +805,8 @@ static int ipmmu_of_xlate(struct device *dev, static int ipmmu_init_arm_mapping(struct device *dev) { struct ipmmu_vmsa_device *mmu = to_ipmmu(dev); - struct iommu_group *group; int ret; - /* Create a device group and add the device to it. */ - group = iommu_group_alloc(); - if (IS_ERR(group)) { - dev_err(dev, "Failed to allocate IOMMU group\n"); - return PTR_ERR(group); - } - - ret = iommu_group_add_device(group, dev); - iommu_group_put(group); - - if (ret < 0) { - dev_err(dev, "Failed to add device to IPMMU group\n"); - return ret; - } - /* * Create the ARM mapping, used by the ARM DMA mapping core to allocate * VAs. This will allocate a corresponding IOMMU domain. @@ -856,48 +840,39 @@ static int ipmmu_init_arm_mapping(struct device *dev) return 0; error: - iommu_group_remove_device(dev); if (mmu->mapping) arm_iommu_release_mapping(mmu->mapping); return ret; } -static int ipmmu_add_device(struct device *dev) +static struct iommu_device *ipmmu_probe_device(struct device *dev) { struct ipmmu_vmsa_device *mmu = to_ipmmu(dev); - struct iommu_group *group; - int ret; /* * Only let through devices that have been verified in xlate() */ if (!mmu) - return -ENODEV; + return ERR_PTR(-ENODEV); - if (IS_ENABLED(CONFIG_ARM) && !IS_ENABLED(CONFIG_IOMMU_DMA)) { - ret = ipmmu_init_arm_mapping(dev); - if (ret) - return ret; - } else { - group = iommu_group_get_for_dev(dev); - if (IS_ERR(group)) - return PTR_ERR(group); + return &mmu->iommu; +} - iommu_group_put(group); - } +static void ipmmu_probe_finalize(struct device *dev) +{ + int ret = 0; - iommu_device_link(&mmu->iommu, dev); - return 0; + if (IS_ENABLED(CONFIG_ARM) && !IS_ENABLED(CONFIG_IOMMU_DMA)) + ret = ipmmu_init_arm_mapping(dev); + + if (ret) + dev_err(dev, "Can't create IOMMU mapping - DMA-OPS will not work\n"); } -static void ipmmu_remove_device(struct device *dev) +static void ipmmu_release_device(struct device *dev) { - struct ipmmu_vmsa_device *mmu = to_ipmmu(dev); - - iommu_device_unlink(&mmu->iommu, dev); arm_iommu_detach_device(dev); - iommu_group_remove_device(dev); } static struct iommu_group *ipmmu_find_group(struct device *dev) @@ -925,9 +900,14 @@ static const struct iommu_ops ipmmu_ops = { .flush_iotlb_all = ipmmu_flush_iotlb_all, .iotlb_sync = ipmmu_iotlb_sync, .iova_to_phys = ipmmu_iova_to_phys, - .add_device = ipmmu_add_device, - .remove_device = ipmmu_remove_device, + .probe_device = ipmmu_probe_device, + .release_device = ipmmu_release_device, + .probe_finalize = ipmmu_probe_finalize, +#if defined(CONFIG_ARM) && !defined(CONFIG_IOMMU_DMA) + .device_group = generic_device_group, +#else .device_group = ipmmu_find_group, +#endif .pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K, .of_xlate = ipmmu_of_xlate, }; -- 2.17.1 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek