sparc32: Implement more generic dma_*() interfaces.

These dispatch to either PCI or SBUS routines based upon
the device bus type.

This will allow us to let SBUS drivers call these routines.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/sparc/kernel/dma.h b/arch/sparc/kernel/dma.h
new file mode 100644
index 000000000000..f8d8951adb53
--- /dev/null
+++ b/arch/sparc/kernel/dma.h
@@ -0,0 +1,14 @@
+void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp);
+void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba);
+dma_addr_t sbus_map_single(struct device *dev, void *va,
+			   size_t len, int direction);
+void sbus_unmap_single(struct device *dev, dma_addr_t ba,
+		       size_t n, int direction);
+int sbus_map_sg(struct device *dev, struct scatterlist *sg,
+		int n, int direction);
+void sbus_unmap_sg(struct device *dev, struct scatterlist *sg,
+		   int n, int direction);
+void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba,
+				  size_t size, int direction);
+void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba,
+				     size_t size, int direction);