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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_IA64_DMA_MAPPING_H #define _ASM_IA64_DMA_MAPPING_H /* * Copyright (C) 2003-2004 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> */ #include <asm/machvec.h> #include <linux/scatterlist.h> #include <asm/swiotlb.h> #include <linux/dma-debug.h> #define ARCH_HAS_DMA_GET_REQUIRED_MASK extern const struct dma_map_ops *dma_ops; extern struct ia64_machine_vector ia64_mv; extern void set_iommu_machvec(void); extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t, enum dma_data_direction); extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int, enum dma_data_direction); static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) { return platform_dma_get_ops(NULL); } static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { if (!dev->dma_mask) return 0; return addr + size - 1 <= *dev->dma_mask; } static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) { return paddr; } static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) { return daddr; } #endif /* _ASM_IA64_DMA_MAPPING_H */