svn commit: r215343 - user/nwhitehorn/ps3/powerpc/ps3

[Nathan Whitehorn]

Author: nwhitehorn
Date: Mon Nov 15 18:49:42 2010
New Revision: 215343
URL: http://svn.freebsd.org/changeset/base/215343

Log:
  Storage bus devices on the PS3 do not appear to require (or allow) use
  of the I/O MMU.

Modified:
  user/nwhitehorn/ps3/powerpc/ps3/ps3bus.c

Modified: user/nwhitehorn/ps3/powerpc/ps3/ps3bus.c
==============================================================================
--- user/nwhitehorn/ps3/powerpc/ps3/ps3bus.c	Mon Nov 15 17:48:13 2010	(r215342)
+++ user/nwhitehorn/ps3/powerpc/ps3/ps3bus.c	Mon Nov 15 18:49:42 2010	(r215343)
@@ -473,6 +473,9 @@ ps3bus_get_dma_tag(device_t dev, device_
 	struct ps3bus_softc *sc = device_get_softc(dev);
 	int i, err, flags;
 
+	if (dinfo->bustype != PS3_BUSTYPE_SYSBUS)
+		return (bus_get_dma_tag(dev));
+
 	mtx_lock(&dinfo->iommu_mtx);
 	if (dinfo->dma_tag != NULL) {
 		mtx_unlock(&dinfo->iommu_mtx);