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Linux Cross Reference
Linux/include/asm-ia64/irq.h

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~ 
  1 #ifndef _ASM_IA64_IRQ_H
  2 #define _ASM_IA64_IRQ_H
  3 
  4 /*
  5  * Copyright (C) 1999-2000 Hewlett-Packard Co
  6  * Copyright (C) 1998-2000 David Mosberger-Tang <davidm@hpl.hp.com>
  7  * Copyright (C) 1998 Stephane Eranian <eranian@hpl.hp.com>
  8  *
  9  * 11/24/98     S.Eranian       updated TIMER_IRQ and irq_cannonicalize
 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 #define NR_IRQS         256
 15 
 16 static __inline__ int
 17 irq_cannonicalize (int irq)
 18 {
 19         /*
 20          * We do the legacy thing here of pretending that irqs < 16
 21          * are 8259 irqs.  This really shouldn't be necessary at all,
 22          * but we keep it here as serial.c still uses it...
 23          */
 24         return ((irq == 2) ? 9 : irq);
 25 }
 26 
 27 extern void disable_irq (unsigned int);
 28 extern void disable_irq_nosync (unsigned int);
 29 extern void enable_irq (unsigned int);
 30 
 31 #endif /* _ASM_IA64_IRQ_H */
 32
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