Add bus_dmamap_load_ma() function to load map with the array of

vm_pages.  Provide trivial implementation which forwards the load to
_bus_dmamap_load_phys() page by page.  Right now all architectures use
bus_dmamap_load_ma_triv().

Tested by:	pho (as part of the functional patch)
Sponsored by:	The FreeBSD Foundation
MFC after:	1 month

1 files changed, 11 insertions, 0 deletions

diff --git a/sys/ia64/ia64/busdma_machdep.c b/sys/ia64/ia64/busdma_machdep.c
index 770f29f..206fc6e 100644
--- a/sys/ia64/ia64/busdma_machdep.c
+++ b/sys/ia64/ia64/busdma_machdep.c
@@ -658,6 +658,17 @@ _bus_dmamap_load_phys(bus_dma_tag_t dmat, bus_dmamap_t map,
 	 */
 	return (buflen != 0 ? EFBIG : 0); /* XXX better return value here? */
 }
+
+int
+_bus_dmamap_load_ma(bus_dma_tag_t dmat, bus_dmamap_t map,
+    struct vm_page **ma, bus_size_t tlen, int ma_offs, int flags,
+    bus_dma_segment_t *segs, int *segp)
+{
+
+	return (bus_dmamap_load_ma_triv(dmat, map, ma, tlen, ma_offs, flags,
+	    segs, segp));
+}
+
 /*
  * Utility function to load a linear buffer.  segp contains
  * the starting segment on entrace, and the ending segment on exit.