include/asm-alpha/softirq.h

   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
   8 extern inline void cpu_bh_disable(int cpu)
   9 {
  10         local_bh_count(cpu)++;
  11         barrier();
  12 }
  13
  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 */