1 files changed, 83 insertions, 0 deletions
diff --git a/sys/dev/pci/drm/drm_memory.c b/sys/dev/pci/drm/drm_memory.c
index c727da1202b..44714ca310b 100644
--- a/sys/dev/pci/drm/drm_memory.c
+++ b/sys/dev/pci/drm/drm_memory.c
@@ -174,3 +174,86 @@ drm_mtrr_del(int __unused handle, unsigned long offset, size_t size, int flags)
 	return 0;
 #endif
 }
+
+u_int8_t
+drm_read8(drm_local_map_t *map, unsigned long offset)
+{
+	u_int8_t *ptr;
+
+	switch (map->type) {
+	case _DRM_SCATTER_GATHER:
+		ptr = map->handle + offset;
+		return  (*ptr);
+		
+	default:
+		return (bus_space_read_1(map->bst, map->bsh, offset));
+	}
+}
+
+u_int16_t
+drm_read16(drm_local_map_t *map, unsigned long offset)
+{
+	u_int16_t *ptr;
+	switch (map->type) {
+	case _DRM_SCATTER_GATHER:
+		ptr = map->handle + offset;
+		return  (*ptr);
+	default:
+		return (bus_space_read_2(map->bst, map->bsh, offset));
+	}
+}
+
+u_int32_t
+drm_read32(drm_local_map_t *map, unsigned long offset)
+{
+	u_int32_t *ptr;
+	switch (map->type) {
+	case _DRM_SCATTER_GATHER:
+		ptr = map->handle + offset;
+		return  (*ptr);
+	default:
+		return (bus_space_read_4(map->bst, map->bsh, offset));
+	}
+}
+
+void
+drm_write8(drm_local_map_t *map, unsigned long offset, u_int8_t val)
+{
+	u_int8_t *ptr;
+	switch (map->type) {
+	case _DRM_SCATTER_GATHER:
+		ptr = map->handle + offset;
+		*ptr = val;
+		break;
+	default:
+		bus_space_write_1(map->bst, map->bsh, offset, val);
+	}
+}
+
+void
+drm_write16(drm_local_map_t *map, unsigned long offset, u_int16_t val)
+{
+	u_int16_t *ptr;
+	switch (map->type) {
+	case _DRM_SCATTER_GATHER:
+		ptr = map->handle + offset;
+		*ptr = val;
+		break;
+	default:
+		bus_space_write_2(map->bst, map->bsh, offset, val);
+	}
+}
+
+void
+drm_write32(drm_local_map_t *map, unsigned long offset, u_int32_t val)
+{
+	u_int32_t *ptr;
+	switch (map->type) {
+	case _DRM_SCATTER_GATHER:
+		ptr = map->handle + offset;
+		*ptr = val;
+		break;
+	default:
+		bus_space_write_4(map->bst, map->bsh, offset, val);
+	}
+}