2 #define TRACE_SYSTEM irq
4 #if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
7 #include <linux/tracepoint.h>
10 struct softirq_action
;
12 #define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq }
13 #define show_softirq_name(val) \
14 __print_symbolic(val, \
16 softirq_name(TIMER), \
17 softirq_name(NET_TX), \
18 softirq_name(NET_RX), \
19 softirq_name(BLOCK), \
20 softirq_name(BLOCK_IOPOLL), \
21 softirq_name(TASKLET), \
22 softirq_name(SCHED), \
23 softirq_name(HRTIMER), \
27 * irq_handler_entry - called immediately before the irq action handler
29 * @action: pointer to struct irqaction
31 * The struct irqaction pointed to by @action contains various
32 * information about the handler, including the device name,
33 * @action->name, and the device id, @action->dev_id. When used in
34 * conjunction with the irq_handler_exit tracepoint, we can figure
35 * out irq handler latencies.
37 TRACE_EVENT(irq_handler_entry
,
39 TP_PROTO(int irq
, struct irqaction
*action
),
45 __string( name
, action
->name
)
50 __assign_str(name
, action
->name
);
53 TP_printk("irq=%d name=%s", __entry
->irq
, __get_str(name
))
57 * irq_handler_exit - called immediately after the irq action handler returns
59 * @action: pointer to struct irqaction
62 * If the @ret value is set to IRQ_HANDLED, then we know that the corresponding
63 * @action->handler scuccessully handled this irq. Otherwise, the irq might be
64 * a shared irq line, or the irq was not handled successfully. Can be used in
65 * conjunction with the irq_handler_entry to understand irq handler latencies.
67 TRACE_EVENT(irq_handler_exit
,
69 TP_PROTO(int irq
, struct irqaction
*action
, int ret
),
71 TP_ARGS(irq
, action
, ret
),
83 TP_printk("irq=%d ret=%s",
84 __entry
->irq
, __entry
->ret
? "handled" : "unhandled")
87 DECLARE_EVENT_CLASS(softirq
,
89 TP_PROTO(unsigned int vec_nr
),
94 __field( unsigned int, vec
)
98 __entry
->vec
= vec_nr
;
101 TP_printk("vec=%u [action=%s]", __entry
->vec
,
102 show_softirq_name(__entry
->vec
))
106 * softirq_entry - called immediately before the softirq handler
107 * @vec_nr: softirq vector number
109 * When used in combination with the softirq_exit tracepoint
110 * we can determine the softirq handler runtine.
112 DEFINE_EVENT(softirq
, softirq_entry
,
114 TP_PROTO(unsigned int vec_nr
),
120 * softirq_exit - called immediately after the softirq handler returns
121 * @vec_nr: softirq vector number
123 * When used in combination with the softirq_entry tracepoint
124 * we can determine the softirq handler runtine.
126 DEFINE_EVENT(softirq
, softirq_exit
,
128 TP_PROTO(unsigned int vec_nr
),
134 * softirq_raise - called immediately when a softirq is raised
135 * @vec_nr: softirq vector number
137 * When used in combination with the softirq_entry tracepoint
138 * we can determine the softirq raise to run latency.
140 DEFINE_EVENT(softirq
, softirq_raise
,
142 TP_PROTO(unsigned int vec_nr
),
147 #endif /* _TRACE_IRQ_H */
149 /* This part must be outside protection */
150 #include <trace/define_trace.h>
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