include/asm-ia64/irq.h

   1 #ifndef _ASM_IA64_IRQ_H
   2 #define _ASM_IA64_IRQ_H
   3
   4 /*
   5  * Copyright (C) 1999-2000, 2002 Hewlett-Packard Co
   6  *      David Mosberger-Tang <davidm@hpl.hp.com>
   7  *      Stephane Eranian <eranian@hpl.hp.com>
   8  *
   9  * 11/24/98     S.Eranian       updated TIMER_IRQ and irq_canonicalize
  10  * 01/20/99     S.Eranian       added keyboard interrupt
  11  * 02/29/00     D.Mosberger     moved most things into hw_irq.h
  12  */
  13
  14 #include <linux/types.h>
  15 #include <linux/cpumask.h>
  16
  17 #define NR_VECTORS      256
  18
  19 #if (NR_VECTORS + 32 * NR_CPUS) < 1024
  20 #define NR_IRQS (NR_VECTORS + 32 * NR_CPUS)
  21 #else
  22 #define NR_IRQS 1024
  23 #endif
  24
  25 static __inline__ int
  26 irq_canonicalize (int irq)
  27 {
  28         /*
  29          * We do the legacy thing here of pretending that irqs < 16
  30          * are 8259 irqs.  This really shouldn't be necessary at all,
  31          * but we keep it here as serial.c still uses it...
  32          */
  33         return ((irq == 2) ? 9 : irq);
  34 }
  35
  36 extern void set_irq_affinity_info (unsigned int irq, int dest, int redir);
  37 bool is_affinity_mask_valid(cpumask_t cpumask);
  38
  39 #define is_affinity_mask_valid is_affinity_mask_valid
  40
  41 #endif /* _ASM_IA64_IRQ_H */