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- extern int iommu_is_span_boundary(unsigned int index, unsigned int nr,
- unsigned long shift,
- unsigned long boundary_size);
- extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
- unsigned long start, unsigned int nr,
- unsigned long shift,
- unsigned long boundary_size,
- unsigned long align_mask);
- extern void iommu_area_free(unsigned long *map, unsigned long start,
- unsigned int nr);
- extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len);
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