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Rev 6588 Rev 6936
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 * Returns -EBUSY if no_wait is true and the buffer is busy.
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 * Returns -EBUSY if no_wait is true and the buffer is busy.
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 * Returns -ERESTARTSYS if interrupted by a signal.
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 * Returns -ERESTARTSYS if interrupted by a signal.
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 */
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 */
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extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
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extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
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		       bool interruptible, bool no_wait);
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		       bool interruptible, bool no_wait);
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/**
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 * ttm_bo_mem_compat - Check if proposed placement is compatible with a bo
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 *
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 * @placement:  Return immediately if buffer is busy.
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 * @mem:  The struct ttm_mem_reg indicating the region where the bo resides
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 * @new_flags: Describes compatible placement found
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 *
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 * Returns true if the placement is compatible
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 */
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extern bool ttm_bo_mem_compat(struct ttm_placement *placement,
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			      struct ttm_mem_reg *mem,
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			      uint32_t *new_flags);
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/**
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/**
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 * ttm_bo_validate
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 * ttm_bo_validate
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 *
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 *
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 * @bo: The buffer object.
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 * @bo: The buffer object.
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 * @placement: Proposed placement for the buffer object.
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 * @placement: Proposed placement for the buffer object.
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 * and is usually called just immediately after the bo has been reserved to
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 * and is usually called just immediately after the bo has been reserved to
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 * avoid recursive reservation from lru lists.
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 * avoid recursive reservation from lru lists.
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 */
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 */
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extern int ttm_bo_del_from_lru(struct ttm_buffer_object *bo);
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extern int ttm_bo_del_from_lru(struct ttm_buffer_object *bo);
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/**
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 * ttm_bo_move_to_lru_tail
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 *
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 * @bo: The buffer object.
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 *
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 * Move this BO to the tail of all lru lists used to lookup and reserve an
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 * object. This function must be called with struct ttm_bo_global::lru_lock
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 * held, and is used to make a BO less likely to be considered for eviction.
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 */
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extern void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo);
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/**
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/**
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 * ttm_bo_lock_delayed_workqueue
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 * ttm_bo_lock_delayed_workqueue