ttm_dma_tt
size += ttm_round_pot(sizeof(struct ttm_dma_tt));
extern int ttm_dma_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
extern void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma);
extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
struct ttm_dma_tt *ttm_dma,
int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev)
void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev)
int ttm_dma_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma)
static void ttm_dma_tt_alloc_page_directory(struct ttm_dma_tt *ttm)