| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_HARDIRQ_H | 
 | 2 | #define __ASM_HARDIRQ_H | 
 | 3 |  | 
 | 4 | #include <linux/config.h> | 
 | 5 | #include <linux/cache.h> | 
 | 6 | #include <linux/threads.h> | 
| Alexey Dobriyan | 19f03f7 | 2006-02-01 03:06:16 -0800 | [diff] [blame^] | 7 | #include <asm/irq.h> | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 |  | 
 | 9 | typedef struct { | 
 | 10 | 	unsigned int __softirq_pending; | 
 | 11 | } ____cacheline_aligned irq_cpustat_t; | 
 | 12 |  | 
 | 13 | #include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */ | 
 | 14 |  | 
 | 15 | #define HARDIRQ_BITS	8 | 
 | 16 |  | 
 | 17 | /* | 
 | 18 |  * The hardirq mask has to be large enough to have space | 
 | 19 |  * for potentially all IRQ sources in the system nesting | 
 | 20 |  * on a single CPU: | 
 | 21 |  */ | 
 | 22 | #if (1 << HARDIRQ_BITS) < NR_IRQS | 
 | 23 | # error HARDIRQ_BITS is too low! | 
 | 24 | #endif | 
 | 25 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #ifndef CONFIG_SMP | 
 | 27 |  | 
 | 28 | extern asmlinkage void __do_softirq(void); | 
 | 29 |  | 
 | 30 | #define irq_exit()                                                      \ | 
 | 31 |         do {                                                            \ | 
 | 32 |                 preempt_count() -= IRQ_EXIT_OFFSET;                     \ | 
 | 33 |                 if (!in_interrupt() && local_softirq_pending())         \ | 
 | 34 |                         __do_softirq();                                 \ | 
 | 35 |                 preempt_enable_no_resched();                            \ | 
 | 36 |         } while (0) | 
 | 37 | #endif | 
 | 38 |  | 
 | 39 |  | 
 | 40 | #endif /* __ASM_HARDIRQ_H */ |