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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _ASM_DMA_MAPPING_H
- #define _ASM_DMA_MAPPING_H
- #include <linux/scatterlist.h>
- #include <asm/dma-coherence.h>
- #include <asm/cache.h>
- #ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
- #include <dma-coherence.h>
- #endif
- extern const struct dma_map_ops mips_default_dma_map_ops;
- extern const struct dma_map_ops mips_swiotlb_ops;
- static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
- {
- #ifdef CONFIG_SWIOTLB
- return &mips_swiotlb_ops;
- #elif defined(CONFIG_MIPS_DMA_DEFAULT)
- return &mips_default_dma_map_ops;
- #else
- return NULL;
- #endif
- }
- #define arch_setup_dma_ops arch_setup_dma_ops
- static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
- u64 size, const struct iommu_ops *iommu,
- bool coherent)
- {
- #ifdef CONFIG_DMA_PERDEV_COHERENT
- dev->archdata.dma_coherent = coherent;
- #endif
- }
- #endif /* _ASM_DMA_MAPPING_H */
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