include/linux/iommu-helper.h

   1 extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
   2                                       unsigned long start, unsigned int nr,
   3                                       unsigned long shift,
   4                                       unsigned long boundary_size,
   5                                       unsigned long align_mask);
   6 extern void iommu_area_free(unsigned long *map, unsigned long start,
   7                             unsigned int nr);