1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_BLOCK_RANGE_H
3#define __PERF_BLOCK_RANGE_H
4
5#include <stdbool.h>
6#include <linux/rbtree.h>
7#include <linux/types.h>
8
9struct symbol;
10
11/*
12 * struct block_range - non-overlapping parts of basic blocks
13 * @node:	treenode
14 * @start:	inclusive start of range
15 * @end:	inclusive end of range
16 * @is_target:	@start is a jump target
17 * @is_branch:	@end is a branch instruction
18 * @coverage:	number of blocks that cover this range
19 * @taken:	number of times the branch is taken (requires @is_branch)
20 * @pred:	number of times the taken branch was predicted
21 */
22struct block_range {
23	struct rb_node node;
24
25	struct symbol *sym;
26
27	u64 start;
28	u64 end;
29
30	int is_target, is_branch;
31
32	u64 coverage;
33	u64 entry;
34	u64 taken;
35	u64 pred;
36};
37
38static inline struct block_range *block_range__next(struct block_range *br)
39{
40	struct rb_node *n = rb_next(&br->node);
41	if (!n)
42		return NULL;
43	return rb_entry(n, struct block_range, node);
44}
45
46struct block_range_iter {
47	struct block_range *start;
48	struct block_range *end;
49};
50
51static inline struct block_range *block_range_iter(struct block_range_iter *iter)
52{
53	return iter->start;
54}
55
56static inline bool block_range_iter__next(struct block_range_iter *iter)
57{
58	if (iter->start == iter->end)
59		return false;
60
61	iter->start = block_range__next(iter->start);
62	return true;
63}
64
65static inline bool block_range_iter__valid(struct block_range_iter *iter)
66{
67	if (!iter->start || !iter->end)
68		return false;
69	return true;
70}
71
72extern struct block_range *block_range__find(u64 addr);
73extern struct block_range_iter block_range__create(u64 start, u64 end);
74extern double block_range__coverage(struct block_range *br);
75
76#endif /* __PERF_BLOCK_RANGE_H */
77