aboutsummaryrefslogtreecommitdiff
path: root/include/linux/interrupt.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/interrupt.h')
-rw-r--r--include/linux/interrupt.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 54b3623434e..f58a0cf8929 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -8,9 +8,12 @@
#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 <asm/atomic.h>
#include <asm/ptrace.h>
#include <asm/system.h>
@@ -273,6 +276,25 @@ 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.