[src/trunk]: src/sys/dev/pci Use BUS_SPACE_MAP_PREFETCHABLE when mapping the ...

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

details:   https://anonhg.NetBSD.org/src/rev/1c9c2ea99929
branches:  trunk
changeset: 761885:1c9c2ea99929
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Thu Feb 10 10:23:20 2011 +0000

description:
Use BUS_SPACE_MAP_PREFETCHABLE when mapping the framebuffer.

diffstat:

 sys/dev/pci/genfb_pci.c |  12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)

diffs (40 lines):

diff -r 136d8488ae66 -r 1c9c2ea99929 sys/dev/pci/genfb_pci.c
--- a/sys/dev/pci/genfb_pci.c   Thu Feb 10 10:21:40 2011 +0000
+++ b/sys/dev/pci/genfb_pci.c   Thu Feb 10 10:23:20 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: genfb_pci.c,v 1.28 2011/02/09 13:19:53 jmcneill Exp $ */
+/*     $NetBSD: genfb_pci.c,v 1.29 2011/02/10 10:23:20 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2007 Michael Lorenz
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: genfb_pci.c,v 1.28 2011/02/09 13:19:53 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: genfb_pci.c,v 1.29 2011/02/10 10:23:20 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -132,8 +132,9 @@
        }
 
        if (bus_space_map(sc->sc_memt, sc->sc_gen.sc_fboffset,
-           sc->sc_gen.sc_fbsize, BUS_SPACE_MAP_LINEAR, &sc->sc_memh) != 0) {
-
+           sc->sc_gen.sc_fbsize,
+           BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE,
+           &sc->sc_memh) != 0) {
                aprint_error_dev(self, "unable to map the framebuffer\n");
                return;
        }
@@ -244,7 +245,8 @@
            (sc->sc_want_wsfb == 1)) {
 
                return bus_space_mmap(sc->sc_memt, sc->sc_gen.sc_fboffset,
-                  offset, prot, BUS_SPACE_MAP_LINEAR);
+                  offset, prot,
+                  BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE);
        }
 
        /*