1/*
2 *  include/asm-s390/softirq.h
3 *
4 *  S390 version
5 *
6 *  Derived from "include/asm-i386/softirq.h"
7 */
8
9#ifndef __ASM_SOFTIRQ_H
10#define __ASM_SOFTIRQ_H
11
12#ifndef __LINUX_SMP_H
13#include <linux/smp.h>
14#endif
15
16#include <asm/atomic.h>
17#include <asm/hardirq.h>
18#include <asm/lowcore.h>
19
20#define __cpu_bh_enable(cpu) \
21                do { barrier(); local_bh_count(cpu)--; } while (0)
22#define cpu_bh_disable(cpu) \
23                do { local_bh_count(cpu)++; barrier(); } while (0)
24
25#define local_bh_disable()      cpu_bh_disable(smp_processor_id())
26#define __local_bh_enable()     __cpu_bh_enable(smp_processor_id())
27
28#define in_softirq() (local_bh_count(smp_processor_id()) != 0)
29
30extern void do_call_softirq(void);
31
32#define local_bh_enable()			          	        \
33do {							                \
34        unsigned int *ptr = &local_bh_count(smp_processor_id());        \
35        barrier();                                                      \
36        if (!--*ptr)							\
37		if (softirq_pending(smp_processor_id()))		\
38			/* Use the async. stack for softirq */		\
39			do_call_softirq();				\
40} while (0)
41
42#endif	/* __ASM_SOFTIRQ_H */
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