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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
7fe2f639 DB |
2 | #ifndef __CPUPOWER_BITMASK__ |
3 | #define __CPUPOWER_BITMASK__ | |
4 | ||
5 | /* Taken over from libbitmask, a project initiated from sgi: | |
6 | * Url: http://oss.sgi.com/projects/cpusets/ | |
7 | * Unfortunately it's not very widespread, therefore relevant parts are | |
8 | * pasted here. | |
9 | */ | |
10 | ||
11 | struct bitmask { | |
12 | unsigned int size; | |
13 | unsigned long *maskp; | |
14 | }; | |
15 | ||
16 | struct bitmask *bitmask_alloc(unsigned int n); | |
17 | void bitmask_free(struct bitmask *bmp); | |
18 | ||
19 | struct bitmask *bitmask_setbit(struct bitmask *bmp, unsigned int i); | |
20 | struct bitmask *bitmask_setall(struct bitmask *bmp); | |
21 | struct bitmask *bitmask_clearall(struct bitmask *bmp); | |
22 | ||
23 | unsigned int bitmask_first(const struct bitmask *bmp); | |
24 | unsigned int bitmask_next(const struct bitmask *bmp, unsigned int i); | |
25 | unsigned int bitmask_last(const struct bitmask *bmp); | |
26 | int bitmask_isallclear(const struct bitmask *bmp); | |
27 | int bitmask_isbitset(const struct bitmask *bmp, unsigned int i); | |
28 | ||
29 | int bitmask_parselist(const char *buf, struct bitmask *bmp); | |
30 | int bitmask_displaylist(char *buf, int len, const struct bitmask *bmp); | |
31 | ||
32 | ||
33 | ||
34 | #endif /*__CPUPOWER_BITMASK__ */ |