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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);
static inline void
dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir)
{
flush_write_buffers();
}
extern struct device fallback_dev;
extern int panic_on_overflow;
#endif /* _X8664_DMA_MAPPING_H */
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