include/asm-sh/irq.h

   1 #ifndef __ASM_SH_IRQ_H
   2 #define __ASM_SH_IRQ_H
   3
   4 #include <asm/machvec.h>
   5
   6 /*
   7  * A sane default based on a reasonable vector table size, platforms are
   8  * advised to cap this at the hard limit that they're interested in
   9  * through the machvec.
  10  */
  11 #define NR_IRQS 256
  12
  13 /*
  14  * Convert back and forth between INTEVT and IRQ values.
  15  */
  16 #ifdef CONFIG_CPU_HAS_INTEVT
  17 #define evt2irq(evt)            (((evt) >> 5) - 16)
  18 #define irq2evt(irq)            (((irq) + 16) << 5)
  19 #else
  20 #define evt2irq(evt)            (evt)
  21 #define irq2evt(irq)            (irq)
  22 #endif
  23
  24 /*
  25  * Simple Mask Register Support
  26  */
  27 extern void make_maskreg_irq(unsigned int irq);
  28 extern unsigned short *irq_mask_register;
  29
  30 /*
  31  * PINT IRQs
  32  */
  33 void init_IRQ_pint(void);
  34 void make_imask_irq(unsigned int irq);
  35
  36 static inline int generic_irq_demux(int irq)
  37 {
  38         return irq;
  39 }
  40
  41 #define irq_canonicalize(irq)   (irq)
  42 #define irq_demux(irq)          sh_mv.mv_irq_demux(irq)
  43
  44 #ifdef CONFIG_4KSTACKS
  45 extern void irq_ctx_init(int cpu);
  46 extern void irq_ctx_exit(int cpu);
  47 # define __ARCH_HAS_DO_SOFTIRQ
  48 #else
  49 # define irq_ctx_init(cpu) do { } while (0)
  50 # define irq_ctx_exit(cpu) do { } while (0)
  51 #endif
  52
  53 #endif /* __ASM_SH_IRQ_H */