screen->base.channel->user_private = nv50;
nv50_init_surface_functions(nv50);
nv50_init_state_functions(nv50);
nv50_init_query_functions(nv50);
screen->base.channel->user_private = nv50;
nv50_init_surface_functions(nv50);
nv50_init_state_functions(nv50);
nv50_init_query_functions(nv50);