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/linux/kernel/dma/
A Dswiotlb.c443 static inline unsigned long get_max_slots(unsigned long boundary_mask) in get_max_slots() argument
445 if (boundary_mask == ~0UL) in get_max_slots()
447 return nr_slots(boundary_mask + 1); in get_max_slots()
465 unsigned long boundary_mask = dma_get_seg_boundary(dev); in swiotlb_find_slots() local
467 phys_to_dma_unencrypted(dev, mem->start) & boundary_mask; in swiotlb_find_slots()
468 unsigned long max_slots = get_max_slots(boundary_mask); in swiotlb_find_slots()

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