AGP_USER_MEMORY
case AGP_USER_MEMORY:
AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY;
AGP_USER_MEMORY : AGP_USER_CACHED_MEMORY;
mem = agp_allocate_memory(agp_be->bridge, ttm->num_pages, AGP_USER_MEMORY);
mem->type = (cached) ? AGP_USER_CACHED_MEMORY : AGP_USER_MEMORY;