1 #ifndef _ALPHA_SOFTIRQ_H
2 #define _ALPHA_SOFTIRQ_H
3 
4 #include <linux/stddef.h>
5 #include <asm/atomic.h>
6 #include <asm/hardirq.h>
7 
cpu_bh_disable(int cpu)8 extern inline void cpu_bh_disable(int cpu)
9 {
10 	local_bh_count(cpu)++;
11 	barrier();
12 }
13 
__cpu_bh_enable(int cpu)14 extern inline void __cpu_bh_enable(int cpu)
15 {
16 	barrier();
17 	local_bh_count(cpu)--;
18 }
19 
20 #define __local_bh_enable()	__cpu_bh_enable(smp_processor_id())
21 #define local_bh_disable()	cpu_bh_disable(smp_processor_id())
22 
23 #define local_bh_enable()					\
24 do {								\
25 	int cpu;						\
26 								\
27 	barrier();						\
28 	cpu = smp_processor_id();				\
29 	if (!--local_bh_count(cpu) && softirq_pending(cpu))	\
30 		do_softirq();					\
31 } while (0)
32 
33 #define in_softirq() (local_bh_count(smp_processor_id()) != 0)
34 
35 #endif /* _ALPHA_SOFTIRQ_H */
36