| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef __CPUPOWER_BITMASK__ |
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| 3 | #define __CPUPOWER_BITMASK__ |
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| 4 | |
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| 5 | /* Taken over from libbitmask, a project initiated from sgi: |
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| 6 | * Url: http://oss.sgi.com/projects/cpusets/ |
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| 7 | * Unfortunately it's not very widespread, therefore relevant parts are |
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| 8 | * pasted here. |
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| 9 | */ |
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| 10 | |
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| 11 | struct bitmask { |
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| 12 | unsigned int size; |
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| 13 | unsigned long *maskp; |
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| 14 | }; |
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| 15 | |
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| 16 | struct bitmask *bitmask_alloc(unsigned int n); |
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| 17 | void bitmask_free(struct bitmask *bmp); |
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| 18 | |
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| 19 | struct bitmask *bitmask_setbit(struct bitmask *bmp, unsigned int i); |
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| 20 | struct bitmask *bitmask_setall(struct bitmask *bmp); |
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| 21 | struct bitmask *bitmask_clearall(struct bitmask *bmp); |
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| 22 | |
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| 23 | unsigned int bitmask_first(const struct bitmask *bmp); |
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| 24 | unsigned int bitmask_next(const struct bitmask *bmp, unsigned int i); |
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| 25 | unsigned int bitmask_last(const struct bitmask *bmp); |
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| 26 | int bitmask_isallclear(const struct bitmask *bmp); |
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| 27 | int bitmask_isbitset(const struct bitmask *bmp, unsigned int i); |
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| 28 | |
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| 29 | int bitmask_parselist(const char *buf, struct bitmask *bmp); |
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| 30 | int bitmask_displaylist(char *buf, int len, const struct bitmask *bmp); |
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| 31 | |
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| 32 | |
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| 33 | |
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| 34 | #endif /*__CPUPOWER_BITMASK__ */ |
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| 35 | |
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