| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 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__ */ |