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
   6 extern int get_signals(void);
   7 extern int set_signals(int enable);
   8 extern void block_signals(void);
   9 extern void unblock_signals(void);
  10
  11 static inline unsigned long arch_local_save_flags(void)
  12 {
  13         return get_signals();
  14 }
  15
  16 static inline void arch_local_irq_restore(unsigned long flags)
  17 {
  18         set_signals(flags);
  19 }
  20
  21 static inline void arch_local_irq_enable(void)
  22 {
  23         unblock_signals();
  24 }
  25
  26 static inline void arch_local_irq_disable(void)
  27 {
  28         block_signals();
  29 }
  30
  31 static 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
  39 static inline bool arch_irqs_disabled(void)
  40 {
  41         return arch_local_save_flags() == 0;
  42 }
  43
  44 extern 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