[PATCH] x86_64: implement dma_sync_single_range_for_{cpu,device}
Re-implement dma_sync_single_range_for_{cpu,device} for x86_64 using
swiotlb_sync_single_range_for_{cpu,device}.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/include/asm-x86_64/dma-mapping.h b/include/asm-x86_64/dma-mapping.h
index e784fdc..45ca88c 100644
--- a/include/asm-x86_64/dma-mapping.h
+++ b/include/asm-x86_64/dma-mapping.h
@@ -85,10 +85,33 @@
flush_write_buffers();
}
-#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \
- dma_sync_single_for_cpu(dev, dma_handle, size, dir)
-#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \
- dma_sync_single_for_device(dev, dma_handle, size, dir)
+static inline void dma_sync_single_range_for_cpu(struct device *hwdev,
+ dma_addr_t dma_handle,
+ unsigned long offset,
+ size_t size, int direction)
+{
+ if (direction == DMA_NONE)
+ out_of_line_bug();
+
+ if (swiotlb)
+ return swiotlb_sync_single_range_for_cpu(hwdev,dma_handle,offset,size,direction);
+
+ flush_write_buffers();
+}
+
+static inline void dma_sync_single_range_for_device(struct device *hwdev,
+ dma_addr_t dma_handle,
+ unsigned long offset,
+ size_t size, int direction)
+{
+ if (direction == DMA_NONE)
+ out_of_line_bug();
+
+ if (swiotlb)
+ return swiotlb_sync_single_range_for_device(hwdev,dma_handle,offset,size,direction);
+
+ flush_write_buffers();
+}
static inline void dma_sync_sg_for_cpu(struct device *hwdev,
struct scatterlist *sg,