Andrew Turner f3ad8ea007 Add DMA sync operations around accessing the dwmmc descriptor ring. Even
with it maps as cache-coherent we still need to call bus_dmamap_sync.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
2016-05-13 15:15:54 +00:00
..
2016-05-03 03:41:25 +00:00