LXR linux/arch/um/include/asm/system.h

   1#ifndef __UM_SYSTEM_GENERIC_H
   2#define __UM_SYSTEM_GENERIC_H
   3
   4#include "sysdep/system.h"
   5
   6extern int get_signals(void);
   7extern int set_signals(int enable);
   8extern void block_signals(void);
   9extern void unblock_signals(void);
  10
  11static inline unsigned long arch_local_save_flags(void)
  12{
  13        return get_signals();
  14}
  15
  16static inline void arch_local_irq_restore(unsigned long flags)
  17{
  18        set_signals(flags);
  19}
  20
  21static inline void arch_local_irq_enable(void)
  22{
  23        unblock_signals();
  24}
  25
  26static inline void arch_local_irq_disable(void)
  27{
  28        block_signals();
  29}
  30
  31static inline unsigned long arch_local_irq_save(void)
  32{
  33        unsigned long flags;
  34        flags = arch_local_save_flags();
  35        arch_local_irq_disable();
  36        return flags;
  37}
  38
  39static inline bool arch_irqs_disabled(void)
  40{
  41        return arch_local_save_flags() == 0;
  42}
  43
  44extern void *_switch_to(void *prev, void *next, void *last);
  45#define switch_to(prev, next, last) prev = _switch_to(prev, next, last)
  46
  47#endif
  48