[src/trunk]: src/sys/dev/ic Use bus_space_mmap in sti_mmap. This makes X on ...

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

details:   https://anonhg.NetBSD.org/src/rev/3abb33394857
branches:  trunk
changeset: 1019325:3abb33394857
user:      skrll <skrll%NetBSD.org@localhost>
date:      Sun Mar 07 10:02:33 2021 +0000

description:
Use bus_space_mmap in sti_mmap.  This makes X on sti for my B160L nearly
work (the colour map is somewhat wrong), but at least the machine doesn't
wedge.

diffstat:

 sys/dev/ic/sti.c |  16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diffs (47 lines):

diff -r 19a5ff569475 -r 3abb33394857 sys/dev/ic/sti.c
--- a/sys/dev/ic/sti.c  Sun Mar 07 10:01:08 2021 +0000
+++ b/sys/dev/ic/sti.c  Sun Mar 07 10:02:33 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sti.c,v 1.26 2021/03/04 20:30:39 skrll Exp $   */
+/*     $NetBSD: sti.c,v 1.27 2021/03/07 10:02:33 skrll Exp $   */
 
 /*     $OpenBSD: sti.c,v 1.61 2009/09/05 14:09:35 miod Exp $   */
 
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sti.c,v 1.26 2021/03/04 20:30:39 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sti.c,v 1.27 2021/03/07 10:02:33 skrll Exp $");
 
 #include "wsdisplay.h"
 
@@ -1171,9 +1171,7 @@
 sti_mmap(void *v, void *vs, off_t offset, int prot)
 {
        struct sti_screen *scr = (struct sti_screen *)v;
-#if 0
        struct sti_rom *rom = scr->scr_rom;
-#endif
        paddr_t pa;
 
        if ((offset & PAGE_MASK) != 0)
@@ -1182,12 +1180,14 @@
        if (offset < 0 || offset >= scr->fblen)
                return -1;
 
-#if 0 /* XXX not all platforms provide bus_space_mmap() yet */
+       if (scr->scr_wsmode != WSDISPLAYIO_MODE_DUMBFB)
+               return -1;
+
        pa = bus_space_mmap(rom->memt, scr->fbaddr, offset, prot,
            BUS_SPACE_MAP_LINEAR);
-#else
-       pa = scr->fbaddr + offset;
-#endif
+
+       if (pa == -1)
+               pa = scr->fbaddr + offset;
 
        return pa;
 }