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dev_iommu_ops() is essentially only used in iommu subsystem, so move to a private header to avoid being abused by other drivers. Link: https://lore.kernel.org/r/20230818101033.4100-2-yi.l.liu@intel.com Suggested-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
31 lines
969 B
C
31 lines
969 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES.
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*/
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#ifndef __LINUX_IOMMU_PRIV_H
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#define __LINUX_IOMMU_PRIV_H
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#include <linux/iommu.h>
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static inline const struct iommu_ops *dev_iommu_ops(struct device *dev)
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{
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/*
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* Assume that valid ops must be installed if iommu_probe_device()
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* has succeeded. The device ops are essentially for internal use
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* within the IOMMU subsystem itself, so we should be able to trust
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* ourselves not to misuse the helper.
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*/
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return dev->iommu->iommu_dev->ops;
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}
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int iommu_group_replace_domain(struct iommu_group *group,
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struct iommu_domain *new_domain);
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int iommu_device_register_bus(struct iommu_device *iommu,
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const struct iommu_ops *ops, struct bus_type *bus,
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struct notifier_block *nb);
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void iommu_device_unregister_bus(struct iommu_device *iommu,
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struct bus_type *bus,
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struct notifier_block *nb);
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#endif /* __LINUX_IOMMU_PRIV_H */
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