1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _ZBUD_H_ 3*4882a593Smuzhiyun #define _ZBUD_H_ 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/types.h> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun struct zbud_pool; 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun struct zbud_ops { 10*4882a593Smuzhiyun int (*evict)(struct zbud_pool *pool, unsigned long handle); 11*4882a593Smuzhiyun }; 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun struct zbud_pool *zbud_create_pool(gfp_t gfp, const struct zbud_ops *ops); 14*4882a593Smuzhiyun void zbud_destroy_pool(struct zbud_pool *pool); 15*4882a593Smuzhiyun int zbud_alloc(struct zbud_pool *pool, size_t size, gfp_t gfp, 16*4882a593Smuzhiyun unsigned long *handle); 17*4882a593Smuzhiyun void zbud_free(struct zbud_pool *pool, unsigned long handle); 18*4882a593Smuzhiyun int zbud_reclaim_page(struct zbud_pool *pool, unsigned int retries); 19*4882a593Smuzhiyun void *zbud_map(struct zbud_pool *pool, unsigned long handle); 20*4882a593Smuzhiyun void zbud_unmap(struct zbud_pool *pool, unsigned long handle); 21*4882a593Smuzhiyun u64 zbud_get_pool_size(struct zbud_pool *pool); 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #endif /* _ZBUD_H_ */ 24