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From: Joerg Roedel <joro@8bytes.org>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Kukjin Kim <kgene@kernel.org>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	David Woodhouse <dwmw2@infradead.org>,
	Lu Baolu <baolu.lu@linux.intel.com>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Rob Clark <robdclark@gmail.com>, Heiko Stuebner <heiko@sntech.de>,
	Gerald Schaefer <gerald.schaefer@de.ibm.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Jean-Philippe Brucker <jean-philippe@linaro.org>
Cc: linux-s390@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	linux-rockchip@lists.infradead.org,
	iommu@lists.linux-foundation.org, Joerg Roedel <jroedel@suse.de>,
	linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org
Subject: [PATCH v2 30/33] iommu/exynos: Use first SYSMMU in controllers list for IOMMU core
Date: Tue, 14 Apr 2020 15:15:39 +0200	[thread overview]
Message-ID: <20200414131542.25608-31-joro@8bytes.org> (raw)
In-Reply-To: <20200414131542.25608-1-joro@8bytes.org>

From: Joerg Roedel <jroedel@suse.de>

On Exynos platforms there can be more than one SYSMMU (IOMMU) for one
DMA master device. Since the IOMMU core code expects only one hardware
IOMMU, use the first SYSMMU in the list.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 drivers/iommu/exynos-iommu.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 186ff5cc975c..09cdd163560a 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1261,6 +1261,11 @@ static int exynos_iommu_add_device(struct device *dev)
 	}
 	iommu_group_put(group);
 
+	/* There is always at least one entry, see exynos_iommu_of_xlate() */
+	data = list_first_entry(&owner->controllers,
+				struct sysmmu_drvdata, owner_node);
+	iommu_device_link(&data->iommu, dev);
+
 	return 0;
 }
 
@@ -1286,6 +1291,11 @@ static void exynos_iommu_remove_device(struct device *dev)
 
 	list_for_each_entry(data, &owner->controllers, owner_node)
 		device_link_del(data->link);
+
+	/* There is always at least one entry, see exynos_iommu_of_xlate() */
+	data = list_first_entry(&owner->controllers,
+				struct sysmmu_drvdata, owner_node);
+	iommu_device_unlink(&data->iommu, dev);
 }
 
 static int exynos_iommu_of_xlate(struct device *dev,
-- 
2.17.1

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  parent reply	other threads:[~2020-04-14 13:17 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200414131600eucas1p16f1ff6aedb780eb795a770dc08e5dec5@eucas1p1.samsung.com>
2020-04-14 13:15 ` [PATCH v2 00/33] iommu: Move iommu_group setup to IOMMU core code Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 01/33] iommu: Move default domain allocation to separate function Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 02/33] iommu: Add def_domain_type() callback in iommu_ops Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 03/33] iommu/amd: Implement iommu_ops->def_domain_type call-back Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 04/33] iommu/vt-d: Wire up iommu_ops->def_domain_type Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 05/33] iommu/amd: Remove dma_mask check from check_device() Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 06/33] iommu/amd: Return -ENODEV in add_device when device is not handled by IOMMU Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 07/33] iommu: Add probe_device() and remove_device() call-backs Joerg Roedel
2020-04-15  6:36     ` Lu Baolu
2020-04-15 12:31       ` Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 08/33] iommu: Move default domain allocation to iommu_probe_device() Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 09/33] iommu: Keep a list of allocated groups in __iommu_probe_device() Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 10/33] iommu: Move new probe_device path to separate function Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 11/33] iommu: Split off default domain allocation from group assignment Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 12/33] iommu: Move iommu_group_create_direct_mappings() out of iommu_group_add_device() Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 13/33] iommu: Export bus_iommu_probe() and make is safe for re-probing Joerg Roedel
2020-04-15  6:10     ` Lu Baolu
2020-04-15 12:29       ` Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 14/33] iommu/amd: Remove dev_data->passthrough Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 15/33] iommu/amd: Convert to probe/release_device() call-backs Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 16/33] iommu/vt-d: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 17/33] iommu/arm-smmu: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 18/33] iommu/pamu: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 19/33] iommu/s390: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 20/33] iommu/virtio: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 21/33] iommu/msm: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 22/33] iommu/mediatek: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 23/33] iommu/mediatek-v1 " Joerg Roedel
2020-05-15  7:44     ` Yong Wu
2020-05-15 10:07       ` Joerg Roedel
2020-05-18  6:51         ` Yong Wu
2020-05-18 13:55           ` Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 24/33] iommu/qcom: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 25/33] iommu/rockchip: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 26/33] iommu/tegra: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 27/33] iommu/renesas: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 28/33] iommu/omap: Remove orphan_dev tracking Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 29/33] iommu/omap: Convert to probe/release_device() call-backs Joerg Roedel
2020-04-14 13:15   ` Joerg Roedel [this message]
2020-04-14 13:15   ` [PATCH v2 31/33] iommu/exynos: " Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 32/33] iommu: Remove add_device()/remove_device() code-paths Joerg Roedel
2020-04-14 13:15   ` [PATCH v2 33/33] iommu: Unexport iommu_group_get_for_dev() Joerg Roedel
2020-04-16 11:48   ` [PATCH v2 00/33] iommu: Move iommu_group setup to IOMMU core code Marek Szyprowski
2020-04-17  1:03   ` Daniel Drake
2020-04-17  1:14     ` Derrick, Jonathan
2020-04-18 12:44       ` joro
2020-05-29 22:16   ` Jerry Snitselaar
2020-06-01 10:42     ` Jerry Snitselaar
2020-06-01 13:17       ` Jerry Snitselaar
2020-06-01 23:20         ` Lu Baolu
2020-06-01 23:16       ` Lu Baolu
2020-06-02  0:02         ` Jerry Snitselaar
2020-06-02 14:23           ` Joerg Roedel
2020-06-02 16:38             ` Jerry Snitselaar
2020-06-02 21:17               ` Jerry Snitselaar

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