[I/OAT]: DMA memcpy subsystem

Provides an API for offloading memory copies to DMA devices

Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/Makefile b/drivers/Makefile
index 447d8e6..3c51703 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -74,3 +74,4 @@
 obj-y				+= firmware/
 obj-$(CONFIG_CRYPTO)		+= crypto/
 obj-$(CONFIG_SUPERH)		+= sh/
+obj-$(CONFIG_DMA_ENGINE)	+= dma/