| /* 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_dma_map_ops; |
| |
| static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) |
| { |
| return mips_dma_map_ops; |
| } |
| |
| static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) |
| { |
| if (!dev->dma_mask) |
| return false; |
| |
| return addr + size <= *dev->dma_mask; |
| } |
| |
| static inline void dma_mark_clean(void *addr, size_t size) {} |
| |
| extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |
| enum dma_data_direction direction); |
| |
| #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 */ |
