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 * @priv_flags: Flags describing buffer object internal state.

 * @priv_flags: Flags describing buffer object internal state.

 * @vma_node: Address space manager node.

 * @vma_node: Address space manager node.

 * @offset: The current GPU offset, which can have different meanings

 * @offset: The current GPU offset, which can have different meanings

 * depending on the memory type. For SYSTEM type memory, it should be 0.

 * depending on the memory type. For SYSTEM type memory, it should be 0.

 * @cur_placement: Hint of current placement.

 * @cur_placement: Hint of current placement.

 *

 *

 * Base class for TTM buffer object, that deals with data placement and CPU

 * Base class for TTM buffer object, that deals with data placement and CPU

 * mappings. GPU mappings are really up to the driver, but for simpler GPUs

 * mappings. GPU mappings are really up to the driver, but for simpler GPUs

 * the driver can usually use the placement offset @offset directly as the

 * the driver can usually use the placement offset @offset directly as the

 * GPU virtual address. For drivers implementing multiple

 * GPU virtual address. For drivers implementing multiple

	struct sg_table *sg;

	struct sg_table *sg;

	struct reservation_object *resv;

	struct reservation_object ttm_resv;

	struct reservation_object ttm_resv;

	struct mutex wu_mutex;

};

};

extern ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,

extern ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,

			 const char __user *wbuf, char __user *rbuf,

			 const char __user *wbuf, char __user *rbuf,

			 size_t count, loff_t *f_pos, bool write);

			 size_t count, loff_t *f_pos, bool write);

extern int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo);