LXR linux/arch/h8300/include/asm/irqflags.h

   1#ifndef _H8300_IRQFLAGS_H
   2#define _H8300_IRQFLAGS_H
   3
   4static 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
  11static inline void arch_local_irq_disable(void)
  12{
  13        asm volatile ("orc  #0x80,ccr" : : : "memory");
  14}
  15
  16static inline void arch_local_irq_enable(void)
  17{
  18        asm volatile ("andc #0x7f,ccr" : : : "memory");
  19}
  20
  21static 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
  28static inline void arch_local_irq_restore(unsigned long flags)
  29{
  30        asm volatile ("ldc %w0,ccr" : : "r" (flags) : "memory");
  31}
  32
  33static inline bool arch_irqs_disabled_flags(unsigned long flags)
  34{
  35        return (flags & 0x80) == 0x80;
  36}
  37
  38static inline bool arch_irqs_disabled(void)
  39{
  40        return arch_irqs_disabled_flags(arch_local_save_flags());
  41}
  42
  43#endif /* _H8300_IRQFLAGS_H */
  44