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- #ifndef _X8664_DMA_MAPPING_H
- #define _X8664_DMA_MAPPING_H 1
- extern dma_addr_t bad_dma_address;
- extern int iommu_merge;
- static inline int dma_mapping_error(dma_addr_t dma_addr)
- {
- if (dma_ops->mapping_error)
- return dma_ops->mapping_error(dma_addr);
- return (dma_addr == bad_dma_address);
- }
- extern int dma_supported(struct device *hwdev, u64 mask);
- /* same for gart, swiotlb, and nommu */
- static inline int dma_get_cache_alignment(void)
- {
- return boot_cpu_data.x86_clflush_size;
- }
- #define dma_is_consistent(d, h) 1
- extern int dma_set_mask(struct device *dev, u64 mask);
- extern struct device fallback_dev;
- extern int panic_on_overflow;
- #endif /* _X8664_DMA_MAPPING_H */
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