[src/trunk]: src/sys/arch/sparc64/dev mmap() memory-ish regions with BUS_SPAC...

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

details:   https://anonhg.NetBSD.org/src/rev/3f8649a761c6
branches:  trunk
changeset: 818867:3f8649a761c6
user:      macallan <macallan%NetBSD.org@localhost>
date:      Fri Nov 04 16:35:32 2016 +0000

description:
mmap() memory-ish regions with BUS_SPACE_MAP_PREFETCHABLE

diffstat:

 sys/arch/sparc64/dev/ffb.c |  46 ++++++++++++++++++++++++----------------------
 1 files changed, 24 insertions(+), 22 deletions(-)

diffs (88 lines):

diff -r 56360e2b6fc6 -r 3f8649a761c6 sys/arch/sparc64/dev/ffb.c
--- a/sys/arch/sparc64/dev/ffb.c        Fri Nov 04 15:31:45 2016 +0000
+++ b/sys/arch/sparc64/dev/ffb.c        Fri Nov 04 16:35:32 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ffb.c,v 1.57 2016/07/07 06:55:38 msaitoh Exp $ */
+/*     $NetBSD: ffb.c,v 1.58 2016/11/04 16:35:32 macallan Exp $        */
 /*     $OpenBSD: creator.c,v 1.20 2002/07/30 19:48:15 jason Exp $      */
 
 /*
@@ -33,7 +33,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ffb.c,v 1.57 2016/07/07 06:55:38 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ffb.c,v 1.58 2016/11/04 16:35:32 macallan Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -468,6 +468,8 @@
                                    (sc->sc_locked == 0)) {
                                        ffb_ras_init(sc);
                                        vcons_redraw_screen(ms);
+                               } else {
+                                       ffb_ras_wait(sc);
                                }
                        }
                }               
@@ -591,7 +593,7 @@
                if (off >= 0 && off < sc->sc_sizes[FFB_REG_DFB24])
                        return (bus_space_mmap(sc->sc_bt,
                            sc->sc_addrs[FFB_REG_DFB24], off, prot,
-                           BUS_SPACE_MAP_LINEAR));
+                           BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE));
                break;
 #endif
        }
@@ -914,24 +916,24 @@
         * our copy of the firmware data as arguments for the real
         * mapping.
         */
-       static struct { unsigned long voff; int reg; } map[] = {
-               { 0x00000000, FFB_REG_SFB8R },
-               { 0x00400000, FFB_REG_SFB8G },
-               { 0x00800000, FFB_REG_SFB8B },
-               { 0x00c00000, FFB_REG_SFB8X },
-               { 0x01000000, FFB_REG_SFB32 },
-               { 0x02000000, FFB_REG_SFB64  },
-               { 0x04000000, FFB_REG_FBC },
-               { 0x04004000, FFB_REG_DFB8R },
-               { 0x04404000, FFB_REG_DFB8G },
-               { 0x04804000, FFB_REG_DFB8B },
-               { 0x04c04000, FFB_REG_DFB8X },
-               { 0x05004000, FFB_REG_DFB24 },
-               { 0x06004000, FFB_REG_DFB32 },
-               { 0x07004000, FFB_REG_DFB422A },
-               { 0x0bc06000, FFB_REG_DAC },
-               { 0x0bc08000, FFB_REG_PROM },
-               { 0x0bc18000, 0 }
+       static struct { unsigned long voff; int reg; long flags; } map[] = {
+               { 0x00000000, FFB_REG_SFB8R, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x00400000, FFB_REG_SFB8G, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x00800000, FFB_REG_SFB8B, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x00c00000, FFB_REG_SFB8X, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x01000000, FFB_REG_SFB32, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x02000000, FFB_REG_SFB64, BUS_SPACE_MAP_PREFETCHABLE  },
+               { 0x04000000, FFB_REG_FBC, 0 },
+               { 0x04004000, FFB_REG_DFB8R, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x04404000, FFB_REG_DFB8G, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x04804000, FFB_REG_DFB8B, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x04c04000, FFB_REG_DFB8X, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x05004000, FFB_REG_DFB24, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x06004000, FFB_REG_DFB32, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x07004000, FFB_REG_DFB422A, BUS_SPACE_MAP_PREFETCHABLE },
+               { 0x0bc06000, FFB_REG_DAC, 0 },
+               { 0x0bc08000, FFB_REG_PROM, 0 },
+               { 0x0bc18000, 0, 0 }
        };
 
        /* special value "FFB_EXP_VOFF" - not backed by any "reg" entry */
@@ -962,7 +964,7 @@
                                o = off - map[i].voff;
                                return bus_space_mmap(sc->sc_bt, 
                                    sc->sc_addrs[reg], o, prot, 
-                                   BUS_SPACE_MAP_LINEAR);
+                                   BUS_SPACE_MAP_LINEAR | map[i].flags);
                        }
                }
        }