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