@@ -837,8 +837,6 @@ static int qcom_iommu_device_probe(struct platform_device *pdev)
goto err_pm_disable;
}
- bus_set_iommu(&platform_bus_type, &qcom_iommu_ops);
-
if (qcom_iommu->local_base) {
pm_runtime_get_sync(dev);
writel_relaxed(0xffffffff, qcom_iommu->local_base + SMMU_INTR_SEL_NS);
@@ -856,8 +854,6 @@ static int qcom_iommu_device_remove(struct platform_device *pdev)
{
struct qcom_iommu_dev *qcom_iommu = platform_get_drvdata(pdev);
- bus_set_iommu(&platform_bus_type, NULL);
-
pm_runtime_force_suspend(&pdev->dev);
platform_set_drvdata(pdev, NULL);
iommu_device_sysfs_remove(&qcom_iommu->iommu);
@@ -476,11 +476,7 @@ int __init pamu_domain_init(void)
if (ret) {
iommu_device_sysfs_remove(&pamu_iommu);
pr_err("Can't register iommu device\n");
- return ret;
}
- bus_set_iommu(&platform_bus_type, &fsl_pamu_ops);
- bus_set_iommu(&pci_bus_type, &fsl_pamu_ops);
-
return ret;
}
@@ -3890,7 +3890,6 @@ static int __init probe_acpi_namespace_devices(void)
continue;
}
- pn->dev->bus->iommu_ops = &intel_iommu_ops;
ret = iommu_probe_device(pn->dev);
if (ret)
break;
@@ -4023,7 +4022,6 @@ int __init intel_iommu_init(void)
}
up_read(&dmar_global_lock);
- bus_set_iommu(&pci_bus_type, &intel_iommu_ops);
if (si_domain && !hw_pass_through)
register_memory_notifier(&intel_iommu_memory_nb);
@@ -1827,30 +1827,6 @@ int bus_iommu_probe(struct bus_type *bus)
return ret;
}
-/**
- * bus_set_iommu - set iommu-callbacks for the bus
- * @bus: bus.
- * @ops: the callbacks provided by the iommu-driver
- *
- * This function is called by an iommu driver to set the iommu methods
- * used for a particular bus. Drivers for devices on that bus can use
- * the iommu-api after these ops are registered.
- * This special function is needed because IOMMUs are usually devices on
- * the bus itself, so the iommu drivers are not initialized when the bus
- * is set up. With this function the iommu-driver can set the iommu-ops
- * afterwards.
- */
-int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops)
-{
- if (bus->iommu_ops && ops && bus->iommu_ops != ops)
- return -EBUSY;
-
- bus->iommu_ops = ops;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(bus_set_iommu);
-
bool iommu_present(struct bus_type *bus)
{
return bus->iommu_ops != NULL;
@@ -792,8 +792,6 @@ static int msm_iommu_probe(struct platform_device *pdev)
goto fail;
}
- bus_set_iommu(&platform_bus_type, &msm_iommu_ops);
-
pr_info("device mapped at %p, irq %d with %d ctx banks\n",
iommu->base, iommu->irq, iommu->ncb);
@@ -1300,8 +1300,6 @@ static int rk_iommu_probe(struct platform_device *pdev)
if (!dma_dev)
dma_dev = &pdev->dev;
- bus_set_iommu(&platform_bus_type, &rk_iommu_ops);
-
pm_runtime_enable(dev);
for (i = 0; i < iommu->num_irq; i++) {
@@ -390,9 +390,3 @@ static const struct iommu_ops s390_iommu_ops = {
.free = s390_domain_free,
}
};
-
-static int __init s390_iommu_init(void)
-{
- return bus_set_iommu(&pci_bus_type, &s390_iommu_ops);
-}
-subsys_initcall(s390_iommu_init);
@@ -496,9 +496,6 @@ static int sprd_iommu_probe(struct platform_device *pdev)
if (ret)
goto remove_sysfs;
- if (!iommu_present(&platform_bus_type))
- bus_set_iommu(&platform_bus_type, &sprd_iommu_ops);
-
ret = sprd_iommu_clk_enable(sdev);
if (ret)
goto unregister_iommu;
@@ -534,8 +531,6 @@ static int sprd_iommu_remove(struct platform_device *pdev)
iommu_group_put(sdev->group);
sdev->group = NULL;
- bus_set_iommu(&platform_bus_type, NULL);
-
platform_set_drvdata(pdev, NULL);
iommu_device_sysfs_remove(&sdev->iommu);
iommu_device_unregister(&sdev->iommu);
@@ -965,8 +965,6 @@ static int sun50i_iommu_probe(struct platform_device *pdev)
if (ret < 0)
goto err_unregister;
- bus_set_iommu(&platform_bus_type, &sun50i_iommu_ops);
-
return 0;
err_unregister:
@@ -416,7 +416,6 @@ static inline const struct iommu_ops *dev_iommu_ops(struct device *dev)
return dev->iommu->iommu_dev->ops;
}
-extern int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops);
extern int bus_iommu_probe(struct bus_type *bus);
extern bool iommu_present(struct bus_type *bus);
extern bool device_iommu_capable(struct device *dev, enum iommu_cap cap);