[src/trunk]: src/sys/dev/pci Use the 64-bit PCI DMA tag if avalable.

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/031ba1ea14f1
branches:  trunk
changeset: 745386:031ba1ea14f1
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sun Mar 01 05:39:05 2020 +0000

description:
Use the 64-bit PCI DMA tag if avalable.

diffstat:

 sys/dev/pci/if_cas.c |  10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diffs (31 lines):

diff -r 53b0785147a8 -r 031ba1ea14f1 sys/dev/pci/if_cas.c
--- a/sys/dev/pci/if_cas.c      Sun Mar 01 03:21:54 2020 +0000
+++ b/sys/dev/pci/if_cas.c      Sun Mar 01 05:39:05 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_cas.c,v 1.40 2020/02/07 00:04:28 thorpej Exp $      */
+/*     $NetBSD: if_cas.c,v 1.41 2020/03/01 05:39:05 thorpej Exp $      */
 /*     $OpenBSD: if_cas.c,v 1.29 2009/11/29 16:19:38 kettenis Exp $    */
 
 /*
@@ -44,7 +44,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_cas.c,v 1.40 2020/02/07 00:04:28 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_cas.c,v 1.41 2020/03/01 05:39:05 thorpej Exp $");
 
 #ifndef _MODULE
 #include "opt_inet.h"
@@ -411,7 +411,11 @@
        sc->sc_dev = self;
        pci_aprint_devinfo(pa, NULL);
        sc->sc_rev = PCI_REVISION(pa->pa_class);
-       sc->sc_dmatag = pa->pa_dmat;
+
+       if (pci_dma64_available(pa))
+               sc->sc_dmatag = pa->pa_dmat64;
+       else
+               sc->sc_dmatag = pa->pa_dmat;
 
        sc->sc_variant = CAS_UNKNOWN;
        for (i = 0; cas_pci_devlist[i].cpd_vendor != 0; i++) {