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From: John Baldwin <jhb@FreeBSD.org>
Date: Wed, 7 Mar 2012 18:52:46 +0000 (UTC)
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Subject: svn commit: r232668 - head/sys/dev/aac
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Author: jhb
Date: Wed Mar  7 18:52:46 2012
New Revision: 232668
URL: http://svn.freebsd.org/changeset/base/232668

Log:
  Use bus_get_dma_tag() to inherit the PCI bus' 4G boundary constraint.
  
  Tested by:	emaste

Modified:
  head/sys/dev/aac/aac_pci.c

Modified: head/sys/dev/aac/aac_pci.c
==============================================================================
--- head/sys/dev/aac/aac_pci.c	Wed Mar  7 18:50:33 2012	(r232667)
+++ head/sys/dev/aac/aac_pci.c	Wed Mar  7 18:52:46 2012	(r232668)
@@ -402,7 +402,7 @@ aac_pci_attach(device_t dev)
 	 *
 	 * Note that some of these controllers are 64-bit capable.
 	 */
-	if (bus_dma_tag_create(NULL, 			/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(sc->aac_dev), /* parent */
 			       PAGE_SIZE, 0,		/* algnmnt, boundary */
 			       BUS_SPACE_MAXADDR,	/* lowaddr */
 			       BUS_SPACE_MAXADDR, 	/* highaddr */