Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
hardirq.h
Go to the documentation of this file.
1 #ifdef __KERNEL__
2 #ifndef __ASM_HARDIRQ_H
3 #define __ASM_HARDIRQ_H
4 
5 #include <asm/irq.h>
6 
7 #if NR_IRQS > 256
8 #define HARDIRQ_BITS 9
9 #else
10 #define HARDIRQ_BITS 8
11 #endif
12 
13 /*
14  * The hardirq mask has to be large enough to have
15  * space for potentially all IRQ sources in the system
16  * nesting on a single CPU:
17  */
18 #if (1 << HARDIRQ_BITS) < NR_IRQS
19 # error HARDIRQ_BITS is too low!
20 #endif
21 
22 #include <asm-generic/hardirq.h>
23 
24 #endif /* __ASM_HARDIRQ_H */
25 #endif /* __KERNEL__ */