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06d54f00f3
There are only two sw_msi implementations in the entire system, thus it's not very necessary to have an sw_msi pointer. Instead, check domain->cookie_type to call the two sw_msi implementations directly from the core code. Link: https://patch.msgid.link/r/7ded87c871afcbaac665b71354de0a335087bf0f.1742871535.git.nicolinc@nvidia.com Suggested-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2014-2015 ARM Ltd.
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*/
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#ifndef __DMA_IOMMU_H
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#define __DMA_IOMMU_H
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#include <linux/iommu.h>
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#ifdef CONFIG_IOMMU_DMA
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void iommu_setup_dma_ops(struct device *dev);
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int iommu_get_dma_cookie(struct iommu_domain *domain);
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void iommu_put_dma_cookie(struct iommu_domain *domain);
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void iommu_put_msi_cookie(struct iommu_domain *domain);
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int iommu_dma_init_fq(struct iommu_domain *domain);
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void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
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int iommu_dma_sw_msi(struct iommu_domain *domain, struct msi_desc *desc,
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phys_addr_t msi_addr);
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extern bool iommu_dma_forcedac;
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#else /* CONFIG_IOMMU_DMA */
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static inline void iommu_setup_dma_ops(struct device *dev)
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{
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}
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static inline int iommu_dma_init_fq(struct iommu_domain *domain)
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{
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return -EINVAL;
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}
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static inline int iommu_get_dma_cookie(struct iommu_domain *domain)
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{
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return -ENODEV;
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}
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static inline void iommu_put_dma_cookie(struct iommu_domain *domain)
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{
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}
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static inline void iommu_put_msi_cookie(struct iommu_domain *domain)
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{
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}
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static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
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{
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}
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static inline int iommu_dma_sw_msi(struct iommu_domain *domain,
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struct msi_desc *desc, phys_addr_t msi_addr)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_IOMMU_DMA */
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#endif /* __DMA_IOMMU_H */
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