#ifndef __ASM_HARDIRQ_H #define __ASM_HARDIRQ_H #include #include #include typedef struct { unsigned int __softirq_pending; } ____cacheline_aligned irq_cpustat_t; #include /* Standard mappings for irq_cpustat_t above */ #define HARDIRQ_BITS 8 /* * 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 irq_enter() (preempt_count() += HARDIRQ_OFFSET) #ifndef CONFIG_SMP extern asmlinkage void __do_softirq(void); #define irq_exit() \ do { \ preempt_count() -= IRQ_EXIT_OFFSET; \ if (!in_interrupt() && local_softirq_pending()) \ __do_softirq(); \ preempt_enable_no_resched(); \ } while (0) #endif #endif /* __ASM_HARDIRQ_H */