2008-09-12 10:42:33 +00:00
|
|
|
static inline unsigned long iommu_device_max_index(unsigned long size,
|
|
|
|
unsigned long offset,
|
|
|
|
u64 dma_mask)
|
|
|
|
{
|
|
|
|
if (size + offset > dma_mask)
|
|
|
|
return dma_mask - offset + 1;
|
|
|
|
else
|
|
|
|
return size;
|
|
|
|
}
|
|
|
|
|
2008-03-04 22:29:27 +00:00
|
|
|
extern int iommu_is_span_boundary(unsigned int index, unsigned int nr,
|
|
|
|
unsigned long shift,
|
|
|
|
unsigned long boundary_size);
|
2008-09-22 13:35:07 +00:00
|
|
|
extern void iommu_area_reserve(unsigned long *map, unsigned long i, int len);
|
2008-02-05 06:28:07 +00:00
|
|
|
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);
|