include/linux/zbud.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ZBUD_H_
   3 #define _ZBUD_H_
   4
   5 #include <linux/types.h>
   6
   7 struct zbud_pool;
   8
   9 struct zbud_ops {
  10         int (*evict)(struct zbud_pool *pool, unsigned long handle);
  11 };
  12
  13 struct zbud_pool *zbud_create_pool(gfp_t gfp, const struct zbud_ops *ops);
  14 void zbud_destroy_pool(struct zbud_pool *pool);
  15 int zbud_alloc(struct zbud_pool *pool, size_t size, gfp_t gfp,
  16         unsigned long *handle);
  17 void zbud_free(struct zbud_pool *pool, unsigned long handle);
  18 int zbud_reclaim_page(struct zbud_pool *pool, unsigned int retries);
  19 void *zbud_map(struct zbud_pool *pool, unsigned long handle);
  20 void zbud_unmap(struct zbud_pool *pool, unsigned long handle);
  21 u64 zbud_get_pool_size(struct zbud_pool *pool);
  22
  23 #endif /* _ZBUD_H_ */