void (*sync_single_for_cpu)(struct device *dev,
dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction);
- void (*sync_single_for_device)(struct device *dev,
- dma_addr_t dma_handle, size_t size,
- enum dma_data_direction direction);
void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
int nelems,
enum dma_data_direction direction);
- void (*sync_sg_for_device)(struct device *dev, struct scatterlist *sg,
- int nelems,
- enum dma_data_direction direction);
};
extern const struct dma_ops *dma_ops;
size_t size,
enum dma_data_direction direction)
{
- dma_ops->sync_single_for_device(dev, dma_handle, size, direction);
+ /* No flushing needed to sync cpu writes to the device. */
}
+static inline void dma_sync_single_range_for_cpu(struct device *dev,
+ dma_addr_t dma_handle,
+ unsigned long offset,
+ size_t size,
+ enum dma_data_direction direction)
+{
+ dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
+}
+
+static inline void dma_sync_single_range_for_device(struct device *dev,
+ dma_addr_t dma_handle,
+ unsigned long offset,
+ size_t size,
+ enum dma_data_direction direction)
+{
+ /* No flushing needed to sync cpu writes to the device. */
+}
+
+
static inline void dma_sync_sg_for_cpu(struct device *dev,
struct scatterlist *sg, int nelems,
enum dma_data_direction direction)
struct scatterlist *sg, int nelems,
enum dma_data_direction direction)
{
- dma_ops->sync_sg_for_device(dev, sg, nelems, direction);
+ /* No flushing needed to sync cpu writes to the device. */
}
static inline int dma_mapping_error(dma_addr_t dma_addr)