softirq.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:1k
源码类别:

嵌入式Linux

开发平台:

Unix_Linux

  1. #ifndef __ASM_SOFTIRQ_H
  2. #define __ASM_SOFTIRQ_H
  3. #include <asm/atomic.h>
  4. #include <asm/hardirq.h>
  5. #define __cpu_bh_enable(cpu) 
  6. do { barrier(); local_bh_count(cpu)--; } while (0)
  7. #define cpu_bh_disable(cpu) 
  8. do { local_bh_count(cpu)++; barrier(); } while (0)
  9. #define local_bh_disable() cpu_bh_disable(smp_processor_id())
  10. #define __local_bh_enable() __cpu_bh_enable(smp_processor_id())
  11. #define in_softirq() (local_bh_count(smp_processor_id()) != 0)
  12. #define local_bh_enable()
  13. do {
  14. unsigned int *ptr = &local_bh_count(smp_processor_id());
  15. if (!--*ptr && ptr[-2])
  16. __asm__("bl%? __do_softirq": : : "lr");/* out of line */
  17. } while (0)
  18. #endif /* __ASM_SOFTIRQ_H */