svn commit: r233421 - head/sys/sparc64/pci

[Marius Strobl]

Author: marius
Date: Sat Mar 24 13:11:58 2012
New Revision: 233421
URL: http://svn.freebsd.org/changeset/base/233421

Log:
  Given that this is a host-PCI-Express bridge driver, create the parent
  DMA tag with a 4 GB boundary as required by PCI-Express. With r232403 in
  place this actually is redundant. However, the host-PCI-Express bridge
  driver is the more appropriate place for implementing this restriction.
  
  MFC after:	3 days

Modified:
  head/sys/sparc64/pci/fire.c

Modified: head/sys/sparc64/pci/fire.c
==============================================================================
--- head/sys/sparc64/pci/fire.c	Sat Mar 24 10:19:40 2012	(r233420)
+++ head/sys/sparc64/pci/fire.c	Sat Mar 24 13:11:58 2012	(r233421)
@@ -764,7 +764,7 @@ fire_attach(device_t dev)
 	if (sc->sc_pci_cfgt == NULL)
 		panic("%s: could not allocate PCI configuration space tag",
 		    __func__);
-	if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0,
+	if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0x100000000,
 	    sc->sc_is.is_pmaxaddr, ~0, NULL, NULL, sc->sc_is.is_pmaxaddr,
 	    0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_pci_dmat) != 0)
 		panic("%s: could not create PCI DMA tag", __func__);