PERFORCE change 108129 for review

[Olivier Houchard]

http://perforce.freebsd.org/chv.cgi?CH=108129

Change 108129 by cognet at cognet on 2006/10/19 23:10:33

	Use BUS_DMA_COHERENT to get the descriptor memory uncached.

Affected files ...

.. //depot/projects/arm/src/sys/dev/ath/if_ath.c#19 edit

Differences ...

==== //depot/projects/arm/src/sys/dev/ath/if_ath.c#19 (text+ko) ====

@@ -2508,7 +2508,8 @@
 	}
 
 	error = bus_dmamem_alloc(dd->dd_dmat, (void**) &dd->dd_desc,
-				 BUS_DMA_NOWAIT, &dd->dd_dmamap);
+				 BUS_DMA_NOWAIT | BUS_DMAMEM_COHERENT, 
+				 &dd->dd_dmamap);
 	if (error != 0) {
 		if_printf(ifp, "unable to alloc memory for %u %s descriptors, "
 			"error %u\n", nbuf * ndesc, dd->dd_name, error);