Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/power/cpupower/utils/helpers/bitmask.h
26299 views
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__ */

35


36