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Diffstat (limited to 'include/linux/dma-iommu.h')
-rw-r--r--include/linux/dma-iommu.h112
1 files changed, 0 insertions, 112 deletions
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
deleted file mode 100644
index e760dc5d1fa8..000000000000
--- a/include/linux/dma-iommu.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (C) 2014-2015 ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef __DMA_IOMMU_H
-#define __DMA_IOMMU_H
-
-#ifdef __KERNEL__
-#include <linux/types.h>
-#include <asm/errno.h>
-
-#ifdef CONFIG_IOMMU_DMA
-#include <linux/dma-mapping.h>
-#include <linux/iommu.h>
-#include <linux/msi.h>
-
-int iommu_dma_init(void);
-
-/* 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 */
-int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
- u64 size, struct device *dev);
-
-/* General helpers for DMA-API <-> IOMMU-API interaction */
-int dma_info_to_prot(enum dma_data_direction dir, bool coherent,
- unsigned long attrs);
-
-/*
- * These implement the bulk of the relevant DMA mapping callbacks, but require
- * the arch code to take care of attributes and cache maintenance
- */
-struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp,
- unsigned long attrs, int prot, dma_addr_t *handle,
- void (*flush_page)(struct device *, const void *, phys_addr_t));
-void iommu_dma_free(struct device *dev, struct page **pages, size_t size,
- dma_addr_t *handle);
-
-int iommu_dma_mmap(struct page **pages, size_t size, struct vm_area_struct *vma);
-
-dma_addr_t iommu_dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size, int prot);
-int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, int prot);
-
-/*
- * Arch code with no special attribute handling may use these
- * directly as DMA mapping callbacks for simplicity
- */
-void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
- enum dma_data_direction dir, unsigned long attrs);
-void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction dir, unsigned long attrs);
-dma_addr_t iommu_dma_map_resource(struct device *dev, phys_addr_t phys,
- size_t size, enum dma_data_direction dir, unsigned long attrs);
-void iommu_dma_unmap_resource(struct device *dev, dma_addr_t handle,
- size_t size, enum dma_data_direction dir, unsigned long attrs);
-
-/* The DMA API isn't _quite_ the whole story, though... */
-void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg);
-void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
-
-#else
-
-struct iommu_domain;
-struct msi_msg;
-struct device;
-
-static inline int iommu_dma_init(void)
-{
- return 0;
-}
-
-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 void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg)
-{
-}
-
-static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
-{
-}
-
-#endif /* CONFIG_IOMMU_DMA */
-#endif /* __KERNEL__ */
-#endif /* __DMA_IOMMU_H */