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Diffstat (limited to 'include/linux/dma-iommu.h')
-rw-r--r-- | include/linux/dma-iommu.h | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h deleted file mode 100644 index 24607dc3c2ac..000000000000 --- a/include/linux/dma-iommu.h +++ /dev/null @@ -1,93 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2014-2015 ARM Ltd. - */ -#ifndef __DMA_IOMMU_H -#define __DMA_IOMMU_H - -#include <linux/errno.h> -#include <linux/types.h> - -#ifdef CONFIG_IOMMU_DMA -#include <linux/dma-mapping.h> -#include <linux/iommu.h> -#include <linux/msi.h> - -/* Domain management interface for IOMMU drivers */ -int iommu_get_dma_cookie(struct iommu_domain *domain); -int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base); -void iommu_put_dma_cookie(struct iommu_domain *domain); - -/* Setup call for arch DMA mapping code */ -void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 dma_limit); -int iommu_dma_init_fq(struct iommu_domain *domain); - -/* The DMA API isn't _quite_ the whole story, though... */ -/* - * iommu_dma_prepare_msi() - Map the MSI page in the IOMMU device - * - * The MSI page will be stored in @desc. - * - * Return: 0 on success otherwise an error describing the failure. - */ -int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr); - -/* Update the MSI message if required. */ -void iommu_dma_compose_msi_msg(struct msi_desc *desc, - struct msi_msg *msg); - -void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); - -void iommu_dma_free_cpu_cached_iovas(unsigned int cpu, - struct iommu_domain *domain); - -extern bool iommu_dma_forcedac; - -#else /* CONFIG_IOMMU_DMA */ - -struct iommu_domain; -struct msi_desc; -struct msi_msg; -struct device; - -static inline void iommu_setup_dma_ops(struct device *dev, u64 dma_base, - u64 dma_limit) -{ -} - -static inline int iommu_dma_init_fq(struct iommu_domain *domain) -{ - return -EINVAL; -} - -static inline int iommu_get_dma_cookie(struct iommu_domain *domain) -{ - return -ENODEV; -} - -static inline int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base) -{ - return -ENODEV; -} - -static inline void iommu_put_dma_cookie(struct iommu_domain *domain) -{ -} - -static inline int iommu_dma_prepare_msi(struct msi_desc *desc, - phys_addr_t msi_addr) -{ - return 0; -} - -static inline void iommu_dma_compose_msi_msg(struct msi_desc *desc, - struct msi_msg *msg) -{ -} - -static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list) -{ -} - -#endif /* CONFIG_IOMMU_DMA */ -#endif /* __DMA_IOMMU_H */ |