xref: /openbmc/linux/arch/ia64/include/asm/irq.h (revision 55fd7e02)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_IA64_IRQ_H
3 #define _ASM_IA64_IRQ_H
4 
5 /*
6  * Copyright (C) 1999-2000, 2002 Hewlett-Packard Co
7  *	David Mosberger-Tang <davidm@hpl.hp.com>
8  *	Stephane Eranian <eranian@hpl.hp.com>
9  *
10  * 11/24/98	S.Eranian 	updated TIMER_IRQ and irq_canonicalize
11  * 01/20/99	S.Eranian	added keyboard interrupt
12  * 02/29/00     D.Mosberger	moved most things into hw_irq.h
13  */
14 
15 #include <linux/types.h>
16 #include <linux/cpumask.h>
17 #include <generated/nr-irqs.h>
18 
19 static __inline__ int
20 irq_canonicalize (int irq)
21 {
22 	/*
23 	 * We do the legacy thing here of pretending that irqs < 16
24 	 * are 8259 irqs.  This really shouldn't be necessary at all,
25 	 * but we keep it here as serial.c still uses it...
26 	 */
27 	return ((irq == 2) ? 9 : irq);
28 }
29 
30 extern void set_irq_affinity_info (unsigned int irq, int dest, int redir);
31 
32 int create_irq(void);
33 void destroy_irq(unsigned int irq);
34 
35 #endif /* _ASM_IA64_IRQ_H */
36