ARC: dma: pass_phys() not sg_virt() to cache ops

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 4b428a4..d6b30f6 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -170,7 +170,7 @@
 	struct scatterlist *sg;
 
 	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
+		_dma_cache_sync(sg_phys(sg), sg->length, dir);
 }
 
 static void arc_dma_sync_sg_for_device(struct device *dev,
@@ -181,7 +181,7 @@
 	struct scatterlist *sg;
 
 	for_each_sg(sglist, sg, nelems, i)
-		_dma_cache_sync((unsigned int)sg_virt(sg), sg->length, dir);
+		_dma_cache_sync(sg_phys(sg), sg->length, dir);
 }
 
 static int arc_dma_supported(struct device *dev, u64 dma_mask)