xref: /openbmc/linux/include/linux/btree-128.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 extern struct btree_geo btree_geo128;
3 
4 struct btree_head128 { struct btree_head h; };
5 
btree_init_mempool128(struct btree_head128 * head,mempool_t * mempool)6 static inline void btree_init_mempool128(struct btree_head128 *head,
7 					 mempool_t *mempool)
8 {
9 	btree_init_mempool(&head->h, mempool);
10 }
11 
btree_init128(struct btree_head128 * head)12 static inline int btree_init128(struct btree_head128 *head)
13 {
14 	return btree_init(&head->h);
15 }
16 
btree_destroy128(struct btree_head128 * head)17 static inline void btree_destroy128(struct btree_head128 *head)
18 {
19 	btree_destroy(&head->h);
20 }
21 
btree_lookup128(struct btree_head128 * head,u64 k1,u64 k2)22 static inline void *btree_lookup128(struct btree_head128 *head, u64 k1, u64 k2)
23 {
24 	u64 key[2] = {k1, k2};
25 	return btree_lookup(&head->h, &btree_geo128, (unsigned long *)&key);
26 }
27 
btree_get_prev128(struct btree_head128 * head,u64 * k1,u64 * k2)28 static inline void *btree_get_prev128(struct btree_head128 *head,
29 				      u64 *k1, u64 *k2)
30 {
31 	u64 key[2] = {*k1, *k2};
32 	void *val;
33 
34 	val = btree_get_prev(&head->h, &btree_geo128,
35 			     (unsigned long *)&key);
36 	*k1 = key[0];
37 	*k2 = key[1];
38 	return val;
39 }
40 
btree_insert128(struct btree_head128 * head,u64 k1,u64 k2,void * val,gfp_t gfp)41 static inline int btree_insert128(struct btree_head128 *head, u64 k1, u64 k2,
42 				  void *val, gfp_t gfp)
43 {
44 	u64 key[2] = {k1, k2};
45 	return btree_insert(&head->h, &btree_geo128,
46 			    (unsigned long *)&key, val, gfp);
47 }
48 
btree_update128(struct btree_head128 * head,u64 k1,u64 k2,void * val)49 static inline int btree_update128(struct btree_head128 *head, u64 k1, u64 k2,
50 				  void *val)
51 {
52 	u64 key[2] = {k1, k2};
53 	return btree_update(&head->h, &btree_geo128,
54 			    (unsigned long *)&key, val);
55 }
56 
btree_remove128(struct btree_head128 * head,u64 k1,u64 k2)57 static inline void *btree_remove128(struct btree_head128 *head, u64 k1, u64 k2)
58 {
59 	u64 key[2] = {k1, k2};
60 	return btree_remove(&head->h, &btree_geo128, (unsigned long *)&key);
61 }
62 
btree_last128(struct btree_head128 * head,u64 * k1,u64 * k2)63 static inline void *btree_last128(struct btree_head128 *head, u64 *k1, u64 *k2)
64 {
65 	u64 key[2];
66 	void *val;
67 
68 	val = btree_last(&head->h, &btree_geo128, (unsigned long *)&key[0]);
69 	if (val) {
70 		*k1 = key[0];
71 		*k2 = key[1];
72 	}
73 
74 	return val;
75 }
76 
btree_merge128(struct btree_head128 * target,struct btree_head128 * victim,gfp_t gfp)77 static inline int btree_merge128(struct btree_head128 *target,
78 				 struct btree_head128 *victim,
79 				 gfp_t gfp)
80 {
81 	return btree_merge(&target->h, &victim->h, &btree_geo128, gfp);
82 }
83 
84 void visitor128(void *elem, unsigned long opaque, unsigned long *__key,
85 		size_t index, void *__func);
86 
87 typedef void (*visitor128_t)(void *elem, unsigned long opaque,
88 			     u64 key1, u64 key2, size_t index);
89 
btree_visitor128(struct btree_head128 * head,unsigned long opaque,visitor128_t func2)90 static inline size_t btree_visitor128(struct btree_head128 *head,
91 				      unsigned long opaque,
92 				      visitor128_t func2)
93 {
94 	return btree_visitor(&head->h, &btree_geo128, opaque,
95 			     visitor128, func2);
96 }
97 
btree_grim_visitor128(struct btree_head128 * head,unsigned long opaque,visitor128_t func2)98 static inline size_t btree_grim_visitor128(struct btree_head128 *head,
99 					   unsigned long opaque,
100 					   visitor128_t func2)
101 {
102 	return btree_grim_visitor(&head->h, &btree_geo128, opaque,
103 				  visitor128, func2);
104 }
105 
106 #define btree_for_each_safe128(head, k1, k2, val)	\
107 	for (val = btree_last128(head, &k1, &k2);	\
108 	     val;					\
109 	     val = btree_get_prev128(head, &k1, &k2))
110 
111