1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/iommu/iommu-priv.h b/drivers/iommu/iommu-priv.h
new file mode 100644
index 000000000000..c95394cd03a7
--- /dev/null
+++ b/drivers/iommu/iommu-priv.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES.
+ */
+#ifndef __LINUX_IOMMU_PRIV_H
+#define __LINUX_IOMMU_PRIV_H
+
+#include <linux/iommu.h>
+#include <linux/msi.h>
+
+static inline const struct iommu_ops *dev_iommu_ops(struct device *dev)
+{
+	/*
+	 * Assume that valid ops must be installed if iommu_probe_device()
+	 * has succeeded. The device ops are essentially for internal use
+	 * within the IOMMU subsystem itself, so we should be able to trust
+	 * ourselves not to misuse the helper.
+	 */
+	return dev->iommu->iommu_dev->ops;
+}
+
+void dev_iommu_free(struct device *dev);
+
+const struct iommu_ops *iommu_ops_from_fwnode(const struct fwnode_handle *fwnode);
+
+static inline const struct iommu_ops *iommu_fwspec_ops(struct iommu_fwspec *fwspec)
+{
+	return iommu_ops_from_fwnode(fwspec ? fwspec->iommu_fwnode : NULL);
+}
+
+void iommu_fwspec_free(struct device *dev);
+
+int iommu_device_register_bus(struct iommu_device *iommu,
+			      const struct iommu_ops *ops,
+			      const struct bus_type *bus,
+			      struct notifier_block *nb);
+void iommu_device_unregister_bus(struct iommu_device *iommu,
+				 const struct bus_type *bus,
+				 struct notifier_block *nb);
+
+int iommu_mock_device_add(struct device *dev, struct iommu_device *iommu);
+
+struct iommu_attach_handle *iommu_attach_handle_get(struct iommu_group *group,
+						    ioasid_t pasid,
+						    unsigned int type);
+int iommu_attach_group_handle(struct iommu_domain *domain,
+			      struct iommu_group *group,
+			      struct iommu_attach_handle *handle);
+void iommu_detach_group_handle(struct iommu_domain *domain,
+			       struct iommu_group *group);
+int iommu_replace_group_handle(struct iommu_group *group,
+			       struct iommu_domain *new_domain,
+			       struct iommu_attach_handle *handle);
+
+#if IS_ENABLED(CONFIG_IOMMUFD_DRIVER_CORE) && IS_ENABLED(CONFIG_IRQ_MSI_IOMMU)
+int iommufd_sw_msi(struct iommu_domain *domain, struct msi_desc *desc,
+		   phys_addr_t msi_addr);
+#else /* !CONFIG_IOMMUFD_DRIVER_CORE || !CONFIG_IRQ_MSI_IOMMU */
+static inline int iommufd_sw_msi(struct iommu_domain *domain,
+				 struct msi_desc *desc, phys_addr_t msi_addr)
+{
+	return -EOPNOTSUPP;
+}
+#endif /* CONFIG_IOMMUFD_DRIVER_CORE && CONFIG_IRQ_MSI_IOMMU */
+
+int iommu_replace_device_pasid(struct iommu_domain *domain,
+			       struct device *dev, ioasid_t pasid,
+			       struct iommu_attach_handle *handle);
+#endif /* __LINUX_IOMMU_PRIV_H */