arch/h8300/include/asm/irqflags.h

   1 #ifndef _H8300_IRQFLAGS_H
   2 #define _H8300_IRQFLAGS_H
   3
   4 static inline unsigned long arch_local_save_flags(void)
   5 {
   6         unsigned long flags;
   7         asm volatile ("stc ccr,%w0" : "=r" (flags));
   8         return flags;
   9 }
  10
  11 static inline void arch_local_irq_disable(void)
  12 {
  13         asm volatile ("orc  #0x80,ccr" : : : "memory");
  14 }
  15
  16 static inline void arch_local_irq_enable(void)
  17 {
  18         asm volatile ("andc #0x7f,ccr" : : : "memory");
  19 }
  20
  21 static inline unsigned long arch_local_irq_save(void)
  22 {
  23         unsigned long flags = arch_local_save_flags();
  24         arch_local_irq_disable();
  25         return flags;
  26 }
  27
  28 static inline void arch_local_irq_restore(unsigned long flags)
  29 {
  30         asm volatile ("ldc %w0,ccr" : : "r" (flags) : "memory");
  31 }
  32
  33 static inline bool arch_irqs_disabled_flags(unsigned long flags)
  34 {
  35         return (flags & 0x80) == 0x80;
  36 }
  37
  38 static inline bool arch_irqs_disabled(void)
  39 {
  40         return arch_irqs_disabled_flags(arch_local_save_flags());
  41 }
  42
  43 #endif /* _H8300_IRQFLAGS_H */