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Diffstat (limited to 'arch/sparc64/kernel/iommu_common.h')
-rw-r--r--arch/sparc64/kernel/iommu_common.h18
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h
index 0713bd58499c..f3575a614fa2 100644
--- a/arch/sparc64/kernel/iommu_common.h
+++ b/arch/sparc64/kernel/iommu_common.h
@@ -12,6 +12,7 @@
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <linux/device.h>
+#include <linux/iommu-helper.h>
#include <asm/iommu.h>
#include <asm/scatterlist.h>
@@ -45,17 +46,16 @@ static inline unsigned long iommu_num_pages(unsigned long vaddr,
return npages;
}
-static inline unsigned long calc_npages(struct scatterlist *sglist, int nelems)
+static inline int is_span_boundary(unsigned long entry,
+ unsigned long shift,
+ unsigned long boundary_size,
+ struct scatterlist *outs,
+ struct scatterlist *sg)
{
- unsigned long i, npages = 0;
- struct scatterlist *sg;
+ unsigned long paddr = SG_ENT_PHYS_ADDRESS(outs);
+ int nr = iommu_num_pages(paddr, outs->dma_length + sg->length);
- for_each_sg(sglist, sg, nelems, i) {
- unsigned long paddr = SG_ENT_PHYS_ADDRESS(sg);
- npages += iommu_num_pages(paddr, sg->length);
- }
-
- return npages;
+ return iommu_is_span_boundary(entry, nr, shift, boundary_size);
}
extern unsigned long iommu_range_alloc(struct device *dev,