For now this allows consolidating the powerpc code. In the long run
we should grow a generic implementation of dma_get_required_mask that
returns the dma mask required to avoid bounce buffering.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
kernel/dma/swiotlb.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 904541055792..1bb420244753 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -1084,5 +1084,9 @@ const struct dma_map_ops swiotlb_dma_ops = {
.map_page = swiotlb_map_page,
.unmap_page = swiotlb_unmap_page,
.dma_supported = dma_direct_supported,
+#ifdef swiotlb_get_required_mask
+ .get_required_mask = swiotlb_get_required_mask,
+#endif
+
};
EXPORT_SYMBOL(swiotlb_dma_ops);
--
2.18.0
--
To unsubscribe from this list: send the line "unsubscribe linux-ia64" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|