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-rw-r--r--arch/sparc64/kernel/iommu_common.h19
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h
index 4b5cafa2877a..41992371c932 100644
--- a/arch/sparc64/kernel/iommu_common.h
+++ b/arch/sparc64/kernel/iommu_common.h
@@ -55,22 +55,3 @@ static inline unsigned long calc_npages(struct scatterlist *sglist, int nelems)
55 55
56 return npages; 56 return npages;
57} 57}
58
59/* You are _strongly_ advised to enable the following debugging code
60 * any time you make changes to the sg code below, run it for a while
61 * with filesystems mounted read-only before buying the farm... -DaveM
62 */
63#undef VERIFY_SG
64
65#ifdef VERIFY_SG
66extern void verify_sglist(struct scatterlist *sg, int nents, iopte_t *iopte, int npages);
67#endif
68
69/* Two addresses are "virtually contiguous" if and only if:
70 * 1) They are equal, or...
71 * 2) They are both on a page boundary
72 */
73#define VCONTIG(__X, __Y) (((__X) == (__Y)) || \
74 (((__X) | (__Y)) << (64UL - PAGE_SHIFT)) == 0UL)
75
76extern unsigned long prepare_sg(struct device *dev, struct scatterlist *sg, int nents);