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kernel/linux-rt-4.4.41/arch/sh/include/asm/irq.h 1.64 KB
5113f6f70   김현기   kernel add
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  #ifndef __ASM_SH_IRQ_H
  #define __ASM_SH_IRQ_H
  
  #include <linux/cpumask.h>
  #include <asm/machvec.h>
  
  /*
   * Only legacy non-sparseirq platforms have to set a reasonably sane
   * value here. sparseirq platforms allocate their irq_descs on the fly,
   * so will expand automatically based on the number of registered IRQs.
   */
  #ifdef CONFIG_SPARSE_IRQ
  # define NR_IRQS		8
  #else
  # define NR_IRQS		512
  #endif
  
  /*
   * This is a special IRQ number for indicating that no IRQ has been
   * triggered and to simply ignore the IRQ dispatch. This is a special
   * case that can happen with IRQ auto-distribution when multiple CPUs
   * are woken up and signalled in parallel.
   */
  #define NO_IRQ_IGNORE		((unsigned int)-1)
  
  /*
   * Simple Mask Register Support
   */
  extern void make_maskreg_irq(unsigned int irq);
  extern unsigned short *irq_mask_register;
  
  /*
   * PINT IRQs
   */
  void init_IRQ_pint(void);
  void make_imask_irq(unsigned int irq);
  
  static inline int generic_irq_demux(int irq)
  {
  	return irq;
  }
  
  #define irq_demux(irq)		sh_mv.mv_irq_demux(irq)
  
  void init_IRQ(void);
  void migrate_irqs(void);
  
  asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
  
  #ifdef CONFIG_IRQSTACKS
  extern void irq_ctx_init(int cpu);
  extern void irq_ctx_exit(int cpu);
  # define __ARCH_HAS_DO_SOFTIRQ
  #else
  # define irq_ctx_init(cpu) do { } while (0)
  # define irq_ctx_exit(cpu) do { } while (0)
  #endif
  
  #ifdef CONFIG_INTC_BALANCING
  extern unsigned int irq_lookup(unsigned int irq);
  extern void irq_finish(unsigned int irq);
  #else
  #define irq_lookup(irq)		(irq)
  #define irq_finish(irq)		do { } while (0)
  #endif
  
  #include <asm-generic/irq.h>
  #ifdef CONFIG_CPU_SH5
  #include <cpu/irq.h>
  #endif
  
  #endif /* __ASM_SH_IRQ_H */