mirror of
https://github.com/torvalds/linux
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99b5726b44
This has no use anymore, delete it all. Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Link: https://lore.kernel.org/r/20230322200803.869130-8-jacob.jun.pan@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* SVA library for IOMMU drivers
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*/
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#ifndef _IOMMU_SVA_H
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#define _IOMMU_SVA_H
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#include <linux/mm_types.h>
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/* I/O Page fault */
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struct device;
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struct iommu_fault;
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struct iopf_queue;
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#ifdef CONFIG_IOMMU_SVA
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int iommu_queue_iopf(struct iommu_fault *fault, void *cookie);
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int iopf_queue_add_device(struct iopf_queue *queue, struct device *dev);
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int iopf_queue_remove_device(struct iopf_queue *queue,
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struct device *dev);
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int iopf_queue_flush_dev(struct device *dev);
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struct iopf_queue *iopf_queue_alloc(const char *name);
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void iopf_queue_free(struct iopf_queue *queue);
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int iopf_queue_discard_partial(struct iopf_queue *queue);
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enum iommu_page_response_code
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iommu_sva_handle_iopf(struct iommu_fault *fault, void *data);
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#else /* CONFIG_IOMMU_SVA */
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static inline int iommu_queue_iopf(struct iommu_fault *fault, void *cookie)
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{
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return -ENODEV;
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}
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static inline int iopf_queue_add_device(struct iopf_queue *queue,
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struct device *dev)
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{
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return -ENODEV;
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}
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static inline int iopf_queue_remove_device(struct iopf_queue *queue,
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struct device *dev)
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{
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return -ENODEV;
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}
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static inline int iopf_queue_flush_dev(struct device *dev)
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{
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return -ENODEV;
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}
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static inline struct iopf_queue *iopf_queue_alloc(const char *name)
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{
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return NULL;
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}
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static inline void iopf_queue_free(struct iopf_queue *queue)
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{
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}
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static inline int iopf_queue_discard_partial(struct iopf_queue *queue)
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{
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return -ENODEV;
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}
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static inline enum iommu_page_response_code
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iommu_sva_handle_iopf(struct iommu_fault *fault, void *data)
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{
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return IOMMU_PAGE_RESP_INVALID;
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}
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#endif /* CONFIG_IOMMU_SVA */
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#endif /* _IOMMU_SVA_H */
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