#include <linux/spinlock.h>
#include <linux/reservation.h>
+#define TTM_MAX_BO_PRIORITY 16U
+
struct ttm_backend_func {
/**
* struct ttm_backend_func member bind
* Protected by the global->lru_lock.
*/
- struct list_head lru;
+ struct list_head lru[TTM_MAX_BO_PRIORITY];
/*
* Protected by @move_lock.
int (*verify_access)(struct ttm_buffer_object *bo,
struct file *filp);
- /* hook to notify driver about a driver move so it
- * can do tiling things */
+ /**
+ * Hook to notify driver about a driver move so it
+ * can do tiling things and book-keeping.
+ *
+ * @evict: whether this move is evicting the buffer from the graphics
+ * address space
+ */
void (*move_notify)(struct ttm_buffer_object *bo,
+ bool evict,
struct ttm_mem_reg *new_mem);
/* notify the driver we are taking a fault on this BO
* and have reserved it */
struct ttm_mem_reg *mem);
void (*io_mem_free)(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem);
-
- /**
- * Optional driver callback for when BO is removed from the LRU.
- * Called with LRU lock held immediately before the removal.
- */
- void (*lru_removal)(struct ttm_buffer_object *bo);
-
- /**
- * Return the list_head after which a BO should be inserted in the LRU.
- */
- struct list_head *(*lru_tail)(struct ttm_buffer_object *bo);
- struct list_head *(*swap_lru_tail)(struct ttm_buffer_object *bo);
};
/**
/**
* Protected by the lru_lock.
*/
- struct list_head swap_lru;
+ struct list_head swap_lru[TTM_MAX_BO_PRIORITY];
/**
* Internal protection.
extern void ttm_bo_del_sub_from_lru(struct ttm_buffer_object *bo);
extern void ttm_bo_add_to_lru(struct ttm_buffer_object *bo);
-struct list_head *ttm_bo_default_lru_tail(struct ttm_buffer_object *bo);
-struct list_head *ttm_bo_default_swap_lru_tail(struct ttm_buffer_object *bo);
-
/**
* __ttm_bo_reserve:
*