1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LIBPERF_INTERNAL_XYARRAY_H
3 #define __LIBPERF_INTERNAL_XYARRAY_H
4 
5 #include <linux/compiler.h>
6 #include <sys/types.h>
7 
8 struct xyarray {
9 	size_t row_size;
10 	size_t entry_size;
11 	size_t entries;
12 	size_t max_x;
13 	size_t max_y;
14 	char contents[] __aligned(8);
15 };
16 
17 struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
18 void xyarray__delete(struct xyarray *xy);
19 void xyarray__reset(struct xyarray *xy);
20 
21 static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
22 {
23 	return &xy->contents[x * xy->row_size + y * xy->entry_size];
24 }
25 
26 static inline int xyarray__max_y(struct xyarray *xy)
27 {
28 	return xy->max_y;
29 }
30 
31 static inline int xyarray__max_x(struct xyarray *xy)
32 {
33 	return xy->max_x;
34 }
35 
36 #endif /* __LIBPERF_INTERNAL_XYARRAY_H */
37