arch/sh/include/asm/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 #define NR_IRQS_LEGACY          8       /* Legacy external IRQ0-7 */
  13
  14 /*
  15  * Convert back and forth between INTEVT and IRQ values.
  16  */
  17 #ifdef CONFIG_CPU_HAS_INTEVT
  18 #define evt2irq(evt)            (((evt) >> 5) - 16)
  19 #define irq2evt(irq)            (((irq) + 16) << 5)
  20 #else
  21 #define evt2irq(evt)            (evt)
  22 #define irq2evt(irq)            (irq)
  23 #endif
  24
  25 /*
  26  * Simple Mask Register Support
  27  */
  28 extern void make_maskreg_irq(unsigned int irq);
  29 extern unsigned short *irq_mask_register;
  30
  31 /*
  32  * PINT IRQs
  33  */
  34 void init_IRQ_pint(void);
  35 void make_imask_irq(unsigned int irq);
  36
  37 static inline int generic_irq_demux(int irq)
  38 {
  39         return irq;
  40 }
  41
  42 #define irq_demux(irq)          sh_mv.mv_irq_demux(irq)
  43
  44 void init_IRQ(void);
  45 asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
  46
  47 #ifdef CONFIG_IRQSTACKS
  48 extern void irq_ctx_init(int cpu);
  49 extern void irq_ctx_exit(int cpu);
  50 # define __ARCH_HAS_DO_SOFTIRQ
  51 #else
  52 # define irq_ctx_init(cpu) do { } while (0)
  53 # define irq_ctx_exit(cpu) do { } while (0)
  54 #endif
  55
  56 #include <asm-generic/irq.h>
  57 #ifdef CONFIG_CPU_SH5
  58 #include <cpu/irq.h>
  59 #endif
  60
  61 #endif /* __ASM_SH_IRQ_H */