xref: /openbmc/linux/lib/cpumask.c (revision 9ac8d3fb)
1 #include <linux/kernel.h>
2 #include <linux/bitops.h>
3 #include <linux/cpumask.h>
4 #include <linux/module.h>
5 
6 int __first_cpu(const cpumask_t *srcp)
7 {
8 	return min_t(int, NR_CPUS, find_first_bit(srcp->bits, NR_CPUS));
9 }
10 EXPORT_SYMBOL(__first_cpu);
11 
12 int __next_cpu(int n, const cpumask_t *srcp)
13 {
14 	return min_t(int, NR_CPUS, find_next_bit(srcp->bits, NR_CPUS, n+1));
15 }
16 EXPORT_SYMBOL(__next_cpu);
17 
18 #if NR_CPUS > 64
19 int __next_cpu_nr(int n, const cpumask_t *srcp)
20 {
21 	return min_t(int, nr_cpu_ids,
22 				find_next_bit(srcp->bits, nr_cpu_ids, n+1));
23 }
24 EXPORT_SYMBOL(__next_cpu_nr);
25 #endif
26 
27 int __any_online_cpu(const cpumask_t *mask)
28 {
29 	int cpu;
30 
31 	for_each_cpu_mask(cpu, *mask) {
32 		if (cpu_online(cpu))
33 			break;
34 	}
35 	return cpu;
36 }
37 EXPORT_SYMBOL(__any_online_cpu);
38