diff options
Diffstat (limited to 'include/linux/interrupt.h')
| -rw-r--r-- | include/linux/interrupt.h | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 58ff4e74b2f3..be3c484b5242 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -8,9 +8,14 @@ #include <linux/preempt.h> #include <linux/cpumask.h> #include <linux/irqreturn.h> +#include <linux/irqnr.h> #include <linux/hardirq.h> #include <linux/sched.h> #include <linux/irqflags.h> +#include <linux/smp.h> +#include <linux/percpu.h> +#include <linux/irqnr.h> + #include <asm/atomic.h> #include <asm/ptrace.h> #include <asm/system.h> @@ -248,10 +253,9 @@ enum BLOCK_SOFTIRQ, TASKLET_SOFTIRQ, SCHED_SOFTIRQ, -#ifdef CONFIG_HIGH_RES_TIMERS - HRTIMER_SOFTIRQ, -#endif RCU_SOFTIRQ, /* Preferable RCU should always be the last softirq */ + + NR_SOFTIRQS }; /* softirq mask and active fields moved to irq_cpustat_t in @@ -271,6 +275,25 @@ extern void softirq_init(void); extern void raise_softirq_irqoff(unsigned int nr); extern void raise_softirq(unsigned int nr); +/* This is the worklist that queues up per-cpu softirq work. + * + * send_remote_sendirq() adds work to these lists, and + * the softirq handler itself dequeues from them. The queues + * are protected by disabling local cpu interrupts and they must + * only be accessed by the local cpu that they are for. + */ +DECLARE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list); + +/* Try to send a softirq to a remote cpu. If this cannot be done, the + * work will be queued to the local cpu. + */ +extern void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq); + +/* Like send_remote_softirq(), but the caller must disable local cpu interrupts + * and compute the current cpu, passed in as 'this_cpu'. + */ +extern void __send_remote_softirq(struct call_single_data *cp, int cpu, + int this_cpu, int softirq); /* Tasklets --- multithreaded analogue of BHs. |
