From: Robin Murphy <robin.murphy@arm.com> To: joro@8bytes.org Cc: will@kernel.org, iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, baolu.lu@linux.intel.com, suravee.suthikulpanit@amd.com, vasant.hegde@amd.com, mjrosato@linux.ibm.com, gerald.schaefer@linux.ibm.com, schnelle@linux.ibm.com, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 11/15] iommu/mtk: Clean up bus_set_iommu() Date: Tue, 5 Jul 2022 18:08:34 +0100 [thread overview] Message-ID: <2a8ae79721a36c7b8960ce2ecb19ef5e202e36c2.1657034828.git.robin.murphy@arm.com> (raw) In-Reply-To: <cover.1657034827.git.robin.murphy@arm.com> Stop calling bus_set_iommu() since it's now unnecessary, and simplify the probe failure paths accordingly. Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- v3: Rebase around recent probe/remove changes drivers/iommu/mtk_iommu.c | 24 +----------------------- drivers/iommu/mtk_iommu_v1.c | 13 +------------ 2 files changed, 2 insertions(+), 35 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index bb9dd92c9898..1a0780b65961 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -1239,30 +1239,13 @@ static int mtk_iommu_probe(struct platform_device *pdev) data->hw_list = &data->hw_list_head; } - if (!iommu_present(&platform_bus_type)) { - ret = bus_set_iommu(&platform_bus_type, &mtk_iommu_ops); - if (ret) - goto out_list_del; - } - if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) { ret = component_master_add_with_match(dev, &mtk_iommu_com_ops, match); if (ret) - goto out_bus_set_null; - } else if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_INFRA) && - MTK_IOMMU_HAS_FLAG(data->plat_data, IFA_IOMMU_PCIE_SUPPORT)) { -#ifdef CONFIG_PCI - if (!iommu_present(&pci_bus_type)) { - ret = bus_set_iommu(&pci_bus_type, &mtk_iommu_ops); - if (ret) /* PCIe fail don't affect platform_bus. */ - goto out_list_del; - } -#endif + goto out_list_del; } return ret; -out_bus_set_null: - bus_set_iommu(&platform_bus_type, NULL); out_list_del: list_del(&data->list); iommu_device_unregister(&data->iommu); @@ -1290,11 +1273,6 @@ static int mtk_iommu_remove(struct platform_device *pdev) if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) { device_link_remove(data->smicomm_dev, &pdev->dev); component_master_del(&pdev->dev, &mtk_iommu_com_ops); - } else if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_INFRA) && - MTK_IOMMU_HAS_FLAG(data->plat_data, IFA_IOMMU_PCIE_SUPPORT)) { -#ifdef CONFIG_PCI - bus_set_iommu(&pci_bus_type, NULL); -#endif } pm_runtime_disable(&pdev->dev); for (i = 0; i < data->plat_data->banks_num; i++) { diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index e1cb51b9866c..e60e8890e45d 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -696,19 +696,11 @@ static int mtk_iommu_v1_probe(struct platform_device *pdev) if (ret) goto out_sysfs_remove; - if (!iommu_present(&platform_bus_type)) { - ret = bus_set_iommu(&platform_bus_type, &mtk_iommu_v1_ops); - if (ret) - goto out_dev_unreg; - } - ret = component_master_add_with_match(dev, &mtk_iommu_v1_com_ops, match); if (ret) - goto out_bus_set_null; + goto out_dev_unreg; return ret; -out_bus_set_null: - bus_set_iommu(&platform_bus_type, NULL); out_dev_unreg: iommu_device_unregister(&data->iommu); out_sysfs_remove: @@ -723,9 +715,6 @@ static int mtk_iommu_v1_remove(struct platform_device *pdev) iommu_device_sysfs_remove(&data->iommu); iommu_device_unregister(&data->iommu); - if (iommu_present(&platform_bus_type)) - bus_set_iommu(&platform_bus_type, NULL); - clk_disable_unprepare(data->bclk); devm_free_irq(&pdev->dev, data->irq, data); component_master_del(&pdev->dev, &mtk_iommu_v1_com_ops); -- 2.36.1.dirty
WARNING: multiple messages have this Message-ID (diff)
From: Robin Murphy <robin.murphy@arm.com> To: joro@8bytes.org Cc: will@kernel.org, iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, baolu.lu@linux.intel.com, suravee.suthikulpanit@amd.com, vasant.hegde@amd.com, mjrosato@linux.ibm.com, gerald.schaefer@linux.ibm.com, schnelle@linux.ibm.com, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 11/15] iommu/mtk: Clean up bus_set_iommu() Date: Tue, 5 Jul 2022 18:08:34 +0100 [thread overview] Message-ID: <2a8ae79721a36c7b8960ce2ecb19ef5e202e36c2.1657034828.git.robin.murphy@arm.com> (raw) In-Reply-To: <cover.1657034827.git.robin.murphy@arm.com> Stop calling bus_set_iommu() since it's now unnecessary, and simplify the probe failure paths accordingly. Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- v3: Rebase around recent probe/remove changes drivers/iommu/mtk_iommu.c | 24 +----------------------- drivers/iommu/mtk_iommu_v1.c | 13 +------------ 2 files changed, 2 insertions(+), 35 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index bb9dd92c9898..1a0780b65961 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -1239,30 +1239,13 @@ static int mtk_iommu_probe(struct platform_device *pdev) data->hw_list = &data->hw_list_head; } - if (!iommu_present(&platform_bus_type)) { - ret = bus_set_iommu(&platform_bus_type, &mtk_iommu_ops); - if (ret) - goto out_list_del; - } - if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) { ret = component_master_add_with_match(dev, &mtk_iommu_com_ops, match); if (ret) - goto out_bus_set_null; - } else if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_INFRA) && - MTK_IOMMU_HAS_FLAG(data->plat_data, IFA_IOMMU_PCIE_SUPPORT)) { -#ifdef CONFIG_PCI - if (!iommu_present(&pci_bus_type)) { - ret = bus_set_iommu(&pci_bus_type, &mtk_iommu_ops); - if (ret) /* PCIe fail don't affect platform_bus. */ - goto out_list_del; - } -#endif + goto out_list_del; } return ret; -out_bus_set_null: - bus_set_iommu(&platform_bus_type, NULL); out_list_del: list_del(&data->list); iommu_device_unregister(&data->iommu); @@ -1290,11 +1273,6 @@ static int mtk_iommu_remove(struct platform_device *pdev) if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) { device_link_remove(data->smicomm_dev, &pdev->dev); component_master_del(&pdev->dev, &mtk_iommu_com_ops); - } else if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_INFRA) && - MTK_IOMMU_HAS_FLAG(data->plat_data, IFA_IOMMU_PCIE_SUPPORT)) { -#ifdef CONFIG_PCI - bus_set_iommu(&pci_bus_type, NULL); -#endif } pm_runtime_disable(&pdev->dev); for (i = 0; i < data->plat_data->banks_num; i++) { diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index e1cb51b9866c..e60e8890e45d 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -696,19 +696,11 @@ static int mtk_iommu_v1_probe(struct platform_device *pdev) if (ret) goto out_sysfs_remove; - if (!iommu_present(&platform_bus_type)) { - ret = bus_set_iommu(&platform_bus_type, &mtk_iommu_v1_ops); - if (ret) - goto out_dev_unreg; - } - ret = component_master_add_with_match(dev, &mtk_iommu_v1_com_ops, match); if (ret) - goto out_bus_set_null; + goto out_dev_unreg; return ret; -out_bus_set_null: - bus_set_iommu(&platform_bus_type, NULL); out_dev_unreg: iommu_device_unregister(&data->iommu); out_sysfs_remove: @@ -723,9 +715,6 @@ static int mtk_iommu_v1_remove(struct platform_device *pdev) iommu_device_sysfs_remove(&data->iommu); iommu_device_unregister(&data->iommu); - if (iommu_present(&platform_bus_type)) - bus_set_iommu(&platform_bus_type, NULL); - clk_disable_unprepare(data->bclk); devm_free_irq(&pdev->dev, data->irq, data); component_master_del(&pdev->dev, &mtk_iommu_v1_com_ops); -- 2.36.1.dirty _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-07-05 17:09 UTC|newest] Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-07-05 17:08 [PATCH v3 00/15] iommu: Retire bus_set_iommu() Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 01/15] iommu/vt-d: Handle race between registration and device probe Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-06 1:39 ` Baolu Lu 2022-07-06 1:39 ` Baolu Lu 2022-07-07 6:51 ` Tian, Kevin 2022-07-07 6:51 ` Tian, Kevin 2022-07-08 7:52 ` Baolu Lu 2022-07-08 7:52 ` Baolu Lu 2022-07-15 12:37 ` Robin Murphy 2022-07-15 12:37 ` Robin Murphy 2022-07-19 0:06 ` Lu Baolu 2022-07-19 0:06 ` Lu Baolu 2022-07-05 17:08 ` [PATCH v3 02/15] iommu/amd: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 03/15] iommu: Always register bus notifiers Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-06 1:53 ` Baolu Lu 2022-07-06 1:53 ` Baolu Lu 2022-07-06 13:43 ` Robin Murphy 2022-07-06 13:43 ` Robin Murphy 2022-07-07 0:20 ` Baolu Lu 2022-07-07 0:20 ` Baolu Lu 2022-07-07 6:34 ` Tian, Kevin 2022-07-07 6:34 ` Tian, Kevin 2022-07-07 9:38 ` Robin Murphy 2022-07-07 9:38 ` Robin Murphy 2022-07-07 6:31 ` Tian, Kevin 2022-07-07 6:31 ` Tian, Kevin 2022-07-07 9:58 ` Robin Murphy 2022-07-07 9:58 ` Robin Murphy 2022-07-08 5:50 ` Tian, Kevin 2022-07-08 5:50 ` Tian, Kevin 2022-07-05 17:08 ` [PATCH v3 04/15] iommu: Move bus setup to IOMMU device registration Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-06 2:35 ` Baolu Lu 2022-07-06 2:35 ` Baolu Lu 2022-07-06 14:37 ` Robin Murphy 2022-07-06 14:37 ` Robin Murphy 2022-07-07 1:19 ` Baolu Lu 2022-07-07 1:19 ` Baolu Lu 2022-07-07 6:51 ` Tian, Kevin 2022-07-07 6:51 ` Tian, Kevin 2022-07-07 10:58 ` Robin Murphy 2022-07-07 10:58 ` Robin Murphy 2022-07-08 5:52 ` Tian, Kevin 2022-07-08 5:52 ` Tian, Kevin 2022-07-05 17:08 ` [PATCH v3 05/15] iommu/amd: Clean up bus_set_iommu() Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 06/15] iommu/arm-smmu: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 07/15] iommu/arm-smmu-v3: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 08/15] iommu/dart: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 09/15] iommu/exynos: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 10/15] iommu/ipmmu-vmsa: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` Robin Murphy [this message] 2022-07-05 17:08 ` [PATCH v3 11/15] iommu/mtk: " Robin Murphy 2022-07-05 17:08 ` [PATCH v3 12/15] iommu/omap: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 13/15] iommu/tegra-smmu: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 14/15] iommu/virtio: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-05 17:08 ` [PATCH v3 15/15] iommu: " Robin Murphy 2022-07-05 17:08 ` Robin Murphy 2022-07-07 7:45 ` Tian, Kevin 2022-07-07 7:45 ` Tian, Kevin 2022-07-07 12:49 ` Matthew Rosato 2022-07-07 12:49 ` Matthew Rosato 2022-07-07 12:54 ` Matthew Rosato 2022-07-07 12:54 ` Matthew Rosato 2022-07-07 14:58 ` Robin Murphy 2022-07-07 14:58 ` Robin Murphy 2022-07-07 16:42 ` Matthew Rosato 2022-07-07 16:42 ` Matthew Rosato 2022-07-08 8:14 ` [PATCH] iommu/s390: fail probe for non-pci device Niklas Schnelle 2022-07-08 8:14 ` Niklas Schnelle 2022-07-08 8:17 ` [PATCH v3 00/15] iommu: Retire bus_set_iommu() Niklas Schnelle 2022-07-08 8:17 ` Niklas Schnelle 2022-07-15 13:12 ` Robin Murphy 2022-07-15 13:12 ` Robin Murphy 2022-07-21 7:17 ` Tian, Kevin 2022-07-21 7:17 ` Tian, Kevin
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