v2.4.8 -> v2.4.8.1
[opensuse:kernel.git] / include / asm-s390x / softirq.h
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
30 #define local_bh_enable()                                               \
31 do {                                                                    \
32         unsigned int *ptr = &local_bh_count(smp_processor_id());        \
33         barrier();                                                      \
34         if (!--*ptr)                                                    \
35                 if (softirq_pending(smp_processor_id()))                \
36                         do_softirq();                                   \
37 } while (0)
38
39 #define __cpu_raise_softirq(cpu, nr) (softirq_pending(cpu) |= (1<<nr))
40
41 #endif  /* __ASM_SOFTIRQ_H */
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