From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754638AbdBFQLk (ORCPT ); Mon, 6 Feb 2017 11:11:40 -0500 Received: from 8bytes.org ([81.169.241.247]:41202 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754478AbdBFQKn (ORCPT ); Mon, 6 Feb 2017 11:10:43 -0500 From: Joerg Roedel To: Will Deacon , Robin Murphy , Lorenzo Pieralisi , Alex Williamson , David Woodhouse Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Joerg Roedel , Marek Szyprowski , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH 09/10] iommu/exynos: Make use of iommu_device_register interface Date: Mon, 6 Feb 2017 17:10:28 +0100 Message-Id: <1486397429-29327-10-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1486397429-29327-1-git-send-email-joro@8bytes.org> References: <1486397429-29327-1-git-send-email-joro@8bytes.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel Register Exynos IOMMUs to the IOMMU core and make them visible in sysfs. This patch does not add the links between IOMMUs and translated devices yet. Cc: Marek Szyprowski Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/exynos-iommu.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 57ba0d3..90f0f52 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -276,6 +276,8 @@ struct sysmmu_drvdata { struct list_head owner_node; /* node for owner controllers list */ phys_addr_t pgtable; /* assigned page table structure */ unsigned int version; /* our version */ + + struct iommu_device iommu; /* IOMMU core handle */ }; static struct exynos_iommu_domain *to_exynos_domain(struct iommu_domain *dom) @@ -556,6 +558,7 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct sysmmu_drvdata *data; struct resource *res; + resource_size_t ioaddr; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) @@ -565,6 +568,7 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev) data->sfrbase = devm_ioremap_resource(dev, res); if (IS_ERR(data->sfrbase)) return PTR_ERR(data->sfrbase); + ioaddr = res->start; irq = platform_get_irq(pdev, 0); if (irq <= 0) { @@ -611,6 +615,18 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev) data->sysmmu = dev; spin_lock_init(&data->lock); + ret = iommu_device_sysfs_add(&data->iommu, &pdev->dev, NULL, + "sysmmu.%pa", &ioaddr); + if (ret) + return ret; + + data->iommu.ops = &exynos_iommu_ops; + data->iommu.fwnode = &dev->of_node->fwnode; + + ret = iommu_device_register(&data->iommu); + if (ret) + return ret; + platform_set_drvdata(pdev, data); __sysmmu_get_version(data); -- 1.9.1