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1/*
2 * include/asm-s390/hardirq.h
3 *
4 * S390 version
5 * Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
6 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
7 * Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
8 *
9 * Derived from "include/asm-i386/hardirq.h"
10 */
11
12#ifndef __ASM_HARDIRQ_H
13#define __ASM_HARDIRQ_H
14
15#include <linux/threads.h>
16#include <linux/sched.h>
17#include <linux/cache.h>
18#include <linux/interrupt.h>
19#include <asm/lowcore.h>
20
21/* irq_cpustat_t is unused currently, but could be converted
22 * into a percpu variable instead of storing softirq_pending
23 * on the lowcore */
24typedef struct {
25 unsigned int __softirq_pending;
26} irq_cpustat_t;
27
28#define local_softirq_pending() (S390_lowcore.softirq_pending)
29
30#define __ARCH_IRQ_STAT
31#define __ARCH_HAS_DO_SOFTIRQ
32
33#define HARDIRQ_BITS 8
34
35void clock_comparator_work(void);
36
37static inline unsigned long long local_tick_disable(void)
38{
39 unsigned long long old;
40
41 old = S390_lowcore.clock_comparator;
42 S390_lowcore.clock_comparator = -1ULL;
43 return old;
44}
45
46static inline void local_tick_enable(unsigned long long comp)
47{
48 S390_lowcore.clock_comparator = comp;
49}
50
51#endif /* __ASM_HARDIRQ_H */