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kernel/linux-rt-4.4.41/arch/sparc/include/asm/irqflags_32.h 1019 Bytes
5113f6f70   김현기   kernel add
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  /*
   * include/asm/irqflags.h
   *
   * IRQ flags handling
   *
   * This file gets included from lowlevel asm headers too, to provide
   * wrapped versions of the local_irq_*() APIs, based on the
   * arch_local_irq_*() functions from the lowlevel headers.
   */
  #ifndef _ASM_IRQFLAGS_H
  #define _ASM_IRQFLAGS_H
  
  #ifndef __ASSEMBLY__
  
  #include <linux/types.h>
  #include <asm/psr.h>
  
  void arch_local_irq_restore(unsigned long);
  unsigned long arch_local_irq_save(void);
  void arch_local_irq_enable(void);
  
  static inline notrace unsigned long arch_local_save_flags(void)
  {
  	unsigned long flags;
  
  	asm volatile("rd        %%psr, %0" : "=r" (flags));
  	return flags;
  }
  
  static inline notrace void arch_local_irq_disable(void)
  {
  	arch_local_irq_save();
  }
  
  static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
  {
  	return (flags & PSR_PIL) != 0;
  }
  
  static inline notrace bool arch_irqs_disabled(void)
  {
  	return arch_irqs_disabled_flags(arch_local_save_flags());
  }
  
  #endif /* (__ASSEMBLY__) */
  
  #endif /* !(_ASM_IRQFLAGS_H) */