1 /* softirq.h: 32-bit Sparc soft IRQ support.
2  *
3  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
4  * Copyright (C) 1998-99 Anton Blanchard (anton@progsoc.uts.edu.au)
5  */
6 
7 #ifndef __SPARC_SOFTIRQ_H
8 #define __SPARC_SOFTIRQ_H
9 
10 #include <linux/threads.h>	/* For NR_CPUS */
11 
12 #include <asm/atomic.h>
13 #include <asm/smp.h>
14 #include <asm/hardirq.h>
15 
16 #define local_bh_disable()	(local_bh_count(smp_processor_id())++)
17 #define __local_bh_enable()	(local_bh_count(smp_processor_id())--)
18 #define local_bh_enable()			  \
19 do { if (!--local_bh_count(smp_processor_id()) && \
20 	 softirq_pending(smp_processor_id())) {   \
21 		do_softirq();			  \
22 		__sti();			  \
23      }						  \
24 } while (0)
25 #define in_softirq() (local_bh_count(smp_processor_id()) != 0)
26 
27 #endif	/* __SPARC_SOFTIRQ_H */
28