struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags);
struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,
struct combination *drv_get_combination(struct driver *drv, uint32_t format, uint64_t use_flags);
struct bo *drv_bo_new(struct driver *drv, uint32_t width, uint32_t height, uint32_t format,