hardirq.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:1k
- #ifndef __ASM_HARDIRQ_H
- #define __ASM_HARDIRQ_H
- #include <linux/config.h>
- #include <linux/cache.h>
- #include <linux/threads.h>
- #include <asm/irq.h>
- typedef struct {
- unsigned int __softirq_pending;
- } ____cacheline_aligned irq_cpustat_t;
- #include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
- #if NR_IRQS > 256
- #define HARDIRQ_BITS 9
- #else
- #define HARDIRQ_BITS 8
- #endif
- /*
- * The hardirq mask has to be large enough to have space
- * for potentially all IRQ sources in the system nesting
- * on a single CPU:
- */
- #if (1 << HARDIRQ_BITS) < NR_IRQS
- # error HARDIRQ_BITS is too low!
- #endif
- #define __ARCH_IRQ_EXIT_IRQS_DISABLED 1
- #endif /* __ASM_HARDIRQ_H */