release/src-rt-6.x.4708/linux/linux-2.6.36/arch/s390/include/asm/hardirq.h

   1 /*
   2  *  include/asm-s390/hardirq.h
   3  *
   4  *  S390 version
   5  *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
   6  *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
   7  *               Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
   8  *
   9  *  Derived from "include/asm-i386/hardirq.h"
  10  */
  11
  12 #ifndef __ASM_HARDIRQ_H
  13 #define __ASM_HARDIRQ_H
  14
  15 #include <linux/threads.h>
  16 #include <linux/sched.h>
  17 #include <linux/cache.h>
  18 #include <linux/interrupt.h>
  19 #include <asm/lowcore.h>
  20
  21 #define local_softirq_pending() (S390_lowcore.softirq_pending)
  22
  23 #define __ARCH_IRQ_STAT
  24 #define __ARCH_HAS_DO_SOFTIRQ
  25
  26 #define HARDIRQ_BITS    8
  27
  28 void clock_comparator_work(void);
  29
  30 static inline unsigned long long local_tick_disable(void)
  31 {
  32         unsigned long long old;
  33
  34         old = S390_lowcore.clock_comparator;
  35         S390_lowcore.clock_comparator = -1ULL;
  36         return old;
  37 }
  38
  39 static inline void local_tick_enable(unsigned long long comp)
  40 {
  41         S390_lowcore.clock_comparator = comp;
  42 }
  43
  44 #endif /* __ASM_HARDIRQ_H */