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+.\" -*- nroff -*-
+.TH TAPSET::IRQ 3stap "" "IBM"
+.SH NAME
+tapset::irq \- Systemtap probes for IRQ, workqueue,etc
+
+.\" macros
+.de SAMPLE
+.br
+.RS
+.nf
+.nh
+..
+.de ESAMPLE
+.hy
+.fi
+.RE
+..
+
+.SH DESCRIPTION
+
+Probe points for probing irq handler execution, softirqs, workqueues,etc
+
+.P
+.TP
+.B workqueue.create
+probes creation of a new workqueue
+
+.B Arguments:
+
+.I wq_thread
+   task_struct of the workqueue thread.
+
+.I cpu
+   cpu for which the worker thread is created.
+
+.P
+.TP
+.B workqueue.insert
+probes queuing of work on a workqueue.
+
+.B Arguments:
+
+.I wq_thread
+   task_struct of the workqueue thread.
+
+.I work
+   work_struct* being executed.
+
+.I work_func
+   pointer to handler func.
+
+.P
+.TP
+.B workqueue.execute
+probes execution of deferred work.
+
+.B Arguments:
+
+.I wq_thread
+   task_struct of the workqueue thread.
+
+.I work
+   work_struct* being executed.
+
+.I work_func
+   pointer to handler func.
+
+.P
+.TP
+.B workqueue.destroy
+probes destruction of each worker thread of each cpu for a workqueue.
+
+.B Arguments:
+
+.I wq_thread
+  task_struct of the workqueue thread.
+
+.P
+.TP
+.B irq_handler.entry
+Fires prior to execution of interrupt handler.
+
+.B Arguments:
+
+.I irq
+   irq number
+
+.I action
+   struct irqaction* for this interrupt number
+
+.I handler
+   interrupt handler function
+
+.I flags
+   flags for this irq.
+
+.I flags_str
+   A formatted string of flags.
+
+.I dev_name
+   name of device
+
+.I dev_id
+   cookie to identify device
+
+.I next_irqaction
+   pointer to next irqaction for shared interrupts
+
+.I dir
+   pointer to the /proc/irq/NN/name entry
+
+.I thread_fn
+   interrupt handler function for threaded interrupts
+
+.I thread
+   thread pointer for threaded interrupts
+
+.I thread_flags
+   flags related to thread
+
+.P
+.TP
+.B irq_handler.exit
+Fires post execution of interrupt handler.
+
+.B Arguments:
+
+.I irq
+   irq number
+
+.I action
+   struct irqaction* for this interrupt number
+
+.I ret
+   return value from interrupt handler that just executed.
+
+.I handler
+   interrupt handler function
+
+.I flags
+   flags for this irq.
+
+.I flags_str
+   A formatted string of flags.
+
+.I dev_name
+   name of device
+
+.I dev_id
+   cookie to identify device
+
+.I next_irqaction
+   pointer to next irqaction for shared interrupts
+
+.I dir
+   pointer to the /proc/irq/NN/name entry
+
+.I thread_fn
+   interrupt handler function for threaded interrupts
+
+.I thread
+   thread pointer for threaded interrupts
+
+.I thread_flags
+   flags related to thread
+
+.P
+.TP
+.B softirq.entry
+triggered just before executing handler for a pending softirq
+
+.B Arguments:
+
+.I h
+   struct softirq* for current pending softirq.
+
+.I vec
+   softirq_action vector
+
+.I action
+   pointer to softirq handler just about to execute.
+
+.P
+.TP
+.B softirq.exit
+triggered just after executing handler for a pending softirq
+
+.B Arguments:
+
+.I h
+   struct softirq* for just executed softirq.
+
+.I vec
+   softirq_action vector
+
+.I action
+   pointer to softirq handler that just finished execution.
+
+.SH SEE ALSO
+.IR stap (1),
+.IR stapprobes (3stap)