[src/trunk]: src/sys/external/bsd/drm/dist/bsd-core map the framebuffer and a...

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

details:   https://anonhg.NetBSD.org/src/rev/928e53059ce2
branches:  trunk
changeset: 762093:928e53059ce2
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Tue Feb 15 14:24:23 2011 +0000

description:
map the framebuffer and agp with BUS_SPACE_MAP_PREFETCHABLE

diffstat:

 sys/external/bsd/drm/dist/bsd-core/drm_memory.c |  3 ++-
 sys/external/bsd/drm/dist/bsd-core/drm_vm.c     |  6 +++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diffs (37 lines):

diff -r 060d20001f1a -r 928e53059ce2 sys/external/bsd/drm/dist/bsd-core/drm_memory.c
--- a/sys/external/bsd/drm/dist/bsd-core/drm_memory.c   Tue Feb 15 14:01:52 2011 +0000
+++ b/sys/external/bsd/drm/dist/bsd-core/drm_memory.c   Tue Feb 15 14:24:23 2011 +0000
@@ -197,7 +197,8 @@
                        dev->agp_map_data[i].mapped++;
                        dev->agp_map_data[i].base = map->offset;
                        dev->agp_map_data[i].size = map->size;
-                       dev->agp_map_data[i].flags = BUS_SPACE_MAP_LINEAR;
+                       dev->agp_map_data[i].flags = BUS_SPACE_MAP_LINEAR |
+                           BUS_SPACE_MAP_PREFETCHABLE;
                        dev->agp_map_data[i].maptype = PCI_MAPREG_TYPE_MEM;
                        map->fullmap = &(dev->agp_map_data[i]);
                        map->mapsize = dev->agp_map_data[i].size;
diff -r 060d20001f1a -r 928e53059ce2 sys/external/bsd/drm/dist/bsd-core/drm_vm.c
--- a/sys/external/bsd/drm/dist/bsd-core/drm_vm.c       Tue Feb 15 14:01:52 2011 +0000
+++ b/sys/external/bsd/drm/dist/bsd-core/drm_vm.c       Tue Feb 15 14:24:23 2011 +0000
@@ -45,6 +45,7 @@
 #elif   defined(__NetBSD__)
        paddr_t phys;
        unsigned long map_offs;
+       int flags = 0;
 #endif
 
 #if defined(__FreeBSD__)
@@ -135,8 +136,11 @@
        case _DRM_REGISTERS:
        case _DRM_AGP:
 #if    defined(__NetBSD__)
+               flags = BUS_SPACE_MAP_LINEAR;
+               if (type == _DRM_FRAME_BUFFER || type == _DRM_AGP)
+                       flags |= BUS_SPACE_MAP_PREFETCHABLE;
                phys = bus_space_mmap(dev->pa.pa_memt, map->offset,
-                               offset - map->offset, prot, BUS_SPACE_MAP_LINEAR);
+                               offset - map->offset, prot, flags);
                if (phys == -1) {
                        DRM_ERROR("bus_space_mmap for %" PRIx64 " failed\n", offset);
                        return -1;