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1/*
2 * include/asm-s390/cpu.h
3 *
4 * Copyright IBM Corp. 2007
5 * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
6 */
7
8#ifndef _ASM_S390_CPU_H_
9#define _ASM_S390_CPU_H_
10
11#include <linux/types.h>
12#include <linux/percpu.h>
13#include <linux/spinlock.h>
14
15struct s390_idle_data {
16 spinlock_t lock;
17 unsigned int in_idle;
18 unsigned long long idle_count;
19 unsigned long long idle_enter;
20 unsigned long long idle_time;
21};
22
23DECLARE_PER_CPU(struct s390_idle_data, s390_idle);
24
25void s390_idle_leave(void);
26
27static inline void s390_idle_check(void)
28{
29 if ((&__get_cpu_var(s390_idle))->in_idle)
30 s390_idle_leave();
31}
32
33#endif /* _ASM_S390_CPU_H_ */