include/asm-sparc64/softirq.h

   1 /* softirq.h: 64-bit Sparc soft IRQ support.
   2  *
   3  * Copyright (C) 1997, 1998 David S. Miller (davem@caip.rutgers.edu)
   4  */
   5
   6 #ifndef __SPARC64_SOFTIRQ_H
   7 #define __SPARC64_SOFTIRQ_H
   8
   9 #include <linux/config.h>
  10 #include <asm/atomic.h>
  11 #include <asm/hardirq.h>
  12 #include <asm/system.h>         /* for membar() */
  13
  14 #ifndef CONFIG_SMP
  15 extern unsigned int __local_bh_count;
  16 #define local_bh_count(cpu)     __local_bh_count
  17 #else
  18 #define local_bh_count(cpu)     (cpu_data[cpu].bh_count)
  19 #endif
  20
  21 #define local_bh_disable()      (local_bh_count(smp_processor_id())++)
  22 #define local_bh_enable()       (local_bh_count(smp_processor_id())--)
  23
  24 #define in_softirq() (local_bh_count(smp_processor_id()) != 0)
  25
  26 #endif /* !(__SPARC64_SOFTIRQ_H) */