Linux Kernel  3.7.1
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irq.h
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1 /*
2  * include/asm-xtensa/irq.h
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License. See the file "COPYING" in the main directory of this archive
6  * for more details.
7  *
8  * Copyright (C) 2001 - 2005 Tensilica Inc.
9  */
10 
11 #ifndef _XTENSA_IRQ_H
12 #define _XTENSA_IRQ_H
13 
14 #include <linux/init.h>
15 #include <platform/hardware.h>
16 #include <variant/core.h>
17 
18 #ifdef CONFIG_VARIANT_IRQ_SWITCH
19 #include <variant/irq.h>
20 #else
21 static inline void variant_irq_enable(unsigned int irq) { }
22 static inline void variant_irq_disable(unsigned int irq) { }
23 #endif
24 
25 #ifndef VARIANT_NR_IRQS
26 # define VARIANT_NR_IRQS 0
27 #endif
28 #ifndef PLATFORM_NR_IRQS
29 # define PLATFORM_NR_IRQS 0
30 #endif
31 #define XTENSA_NR_IRQS XCHAL_NUM_INTERRUPTS
32 #define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS)
33 
34 #if VARIANT_NR_IRQS == 0
35 static inline void variant_init_irq(void) { }
36 #else
37 void variant_init_irq(void) __init;
38 #endif
39 
40 static __inline__ int irq_canonicalize(int irq)
41 {
42  return (irq);
43 }
44 
45 struct irqaction;
46 
47 #endif /* _XTENSA_IRQ_H */