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1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM irq
4
5#if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_IRQ_H
7
8#include <linux/tracepoint.h>
9
10struct irqaction;
11struct softirq_action;
12
13#define SOFTIRQ_NAME_LIST \
14 softirq_name(HI) \
15 softirq_name(TIMER) \
16 softirq_name(NET_TX) \
17 softirq_name(NET_RX) \
18 softirq_name(BLOCK) \
19 softirq_name(IRQ_POLL) \
20 softirq_name(TASKLET) \
21 softirq_name(SCHED) \
22 softirq_name(HRTIMER) \
23 softirq_name_end(RCU)
24
25#undef softirq_name
26#undef softirq_name_end
27
28#define softirq_name(sirq) TRACE_DEFINE_ENUM(sirq##_SOFTIRQ);
29#define softirq_name_end(sirq) TRACE_DEFINE_ENUM(sirq##_SOFTIRQ);
30
31SOFTIRQ_NAME_LIST
32
33#undef softirq_name
34#undef softirq_name_end
35
36#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq },
37#define softirq_name_end(sirq) { sirq##_SOFTIRQ, #sirq }
38
39#define show_softirq_name(val) \
40 __print_symbolic(val, SOFTIRQ_NAME_LIST)
41
42/**
43 * irq_handler_entry - called immediately before the irq action handler
44 * @irq: irq number
45 * @action: pointer to struct irqaction
46 *
47 * The struct irqaction pointed to by @action contains various
48 * information about the handler, including the device name,
49 * @action->name, and the device id, @action->dev_id. When used in
50 * conjunction with the irq_handler_exit tracepoint, we can figure
51 * out irq handler latencies.
52 */
53TRACE_EVENT(irq_handler_entry,
54
55 TP_PROTO(int irq, struct irqaction *action),
56
57 TP_ARGS(irq, action),
58
59 TP_STRUCT__entry(
60 __field( int, irq )
61 __string( name, action->name )
62 ),
63
64 TP_fast_assign(
65 __entry->irq = irq;
66 __assign_str(name, action->name);
67 ),
68
69 TP_printk("irq=%d name=%s", __entry->irq, __get_str(name))
70);
71
72/**
73 * irq_handler_exit - called immediately after the irq action handler returns
74 * @irq: irq number
75 * @action: pointer to struct irqaction
76 * @ret: return value
77 *
78 * If the @ret value is set to IRQ_HANDLED, then we know that the corresponding
79 * @action->handler successfully handled this irq. Otherwise, the irq might be
80 * a shared irq line, or the irq was not handled successfully. Can be used in
81 * conjunction with the irq_handler_entry to understand irq handler latencies.
82 */
83TRACE_EVENT(irq_handler_exit,
84
85 TP_PROTO(int irq, struct irqaction *action, int ret),
86
87 TP_ARGS(irq, action, ret),
88
89 TP_STRUCT__entry(
90 __field( int, irq )
91 __field( int, ret )
92 ),
93
94 TP_fast_assign(
95 __entry->irq = irq;
96 __entry->ret = ret;
97 ),
98
99 TP_printk("irq=%d ret=%s",
100 __entry->irq, __entry->ret ? "handled" : "unhandled")
101);
102
103DECLARE_EVENT_CLASS(softirq,
104
105 TP_PROTO(unsigned int vec_nr),
106
107 TP_ARGS(vec_nr),
108
109 TP_STRUCT__entry(
110 __field( unsigned int, vec )
111 ),
112
113 TP_fast_assign(
114 __entry->vec = vec_nr;
115 ),
116
117 TP_printk("vec=%u [action=%s]", __entry->vec,
118 show_softirq_name(__entry->vec))
119);
120
121/**
122 * softirq_entry - called immediately before the softirq handler
123 * @vec_nr: softirq vector number
124 *
125 * When used in combination with the softirq_exit tracepoint
126 * we can determine the softirq handler routine.
127 */
128DEFINE_EVENT(softirq, softirq_entry,
129
130 TP_PROTO(unsigned int vec_nr),
131
132 TP_ARGS(vec_nr)
133);
134
135/**
136 * softirq_exit - called immediately after the softirq handler returns
137 * @vec_nr: softirq vector number
138 *
139 * When used in combination with the softirq_entry tracepoint
140 * we can determine the softirq handler routine.
141 */
142DEFINE_EVENT(softirq, softirq_exit,
143
144 TP_PROTO(unsigned int vec_nr),
145
146 TP_ARGS(vec_nr)
147);
148
149/**
150 * softirq_raise - called immediately when a softirq is raised
151 * @vec_nr: softirq vector number
152 *
153 * When used in combination with the softirq_entry tracepoint
154 * we can determine the softirq raise to run latency.
155 */
156DEFINE_EVENT(softirq, softirq_raise,
157
158 TP_PROTO(unsigned int vec_nr),
159
160 TP_ARGS(vec_nr)
161);
162
163#endif /* _TRACE_IRQ_H */
164
165/* This part must be outside protection */
166#include <trace/define_trace.h>
1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM irq
3
4#if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_IRQ_H
6
7#include <linux/tracepoint.h>
8
9struct irqaction;
10struct softirq_action;
11
12#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq }
13#define show_softirq_name(val) \
14 __print_symbolic(val, \
15 softirq_name(HI), \
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), \
24 softirq_name(RCU))
25
26/**
27 * irq_handler_entry - called immediately before the irq action handler
28 * @irq: irq number
29 * @action: pointer to struct irqaction
30 *
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.
36 */
37TRACE_EVENT(irq_handler_entry,
38
39 TP_PROTO(int irq, struct irqaction *action),
40
41 TP_ARGS(irq, action),
42
43 TP_STRUCT__entry(
44 __field( int, irq )
45 __string( name, action->name )
46 ),
47
48 TP_fast_assign(
49 __entry->irq = irq;
50 __assign_str(name, action->name);
51 ),
52
53 TP_printk("irq=%d name=%s", __entry->irq, __get_str(name))
54);
55
56/**
57 * irq_handler_exit - called immediately after the irq action handler returns
58 * @irq: irq number
59 * @action: pointer to struct irqaction
60 * @ret: return value
61 *
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.
66 */
67TRACE_EVENT(irq_handler_exit,
68
69 TP_PROTO(int irq, struct irqaction *action, int ret),
70
71 TP_ARGS(irq, action, ret),
72
73 TP_STRUCT__entry(
74 __field( int, irq )
75 __field( int, ret )
76 ),
77
78 TP_fast_assign(
79 __entry->irq = irq;
80 __entry->ret = ret;
81 ),
82
83 TP_printk("irq=%d ret=%s",
84 __entry->irq, __entry->ret ? "handled" : "unhandled")
85);
86
87DECLARE_EVENT_CLASS(softirq,
88
89 TP_PROTO(unsigned int vec_nr),
90
91 TP_ARGS(vec_nr),
92
93 TP_STRUCT__entry(
94 __field( unsigned int, vec )
95 ),
96
97 TP_fast_assign(
98 __entry->vec = vec_nr;
99 ),
100
101 TP_printk("vec=%u [action=%s]", __entry->vec,
102 show_softirq_name(__entry->vec))
103);
104
105/**
106 * softirq_entry - called immediately before the softirq handler
107 * @vec_nr: softirq vector number
108 *
109 * When used in combination with the softirq_exit tracepoint
110 * we can determine the softirq handler runtine.
111 */
112DEFINE_EVENT(softirq, softirq_entry,
113
114 TP_PROTO(unsigned int vec_nr),
115
116 TP_ARGS(vec_nr)
117);
118
119/**
120 * softirq_exit - called immediately after the softirq handler returns
121 * @vec_nr: softirq vector number
122 *
123 * When used in combination with the softirq_entry tracepoint
124 * we can determine the softirq handler runtine.
125 */
126DEFINE_EVENT(softirq, softirq_exit,
127
128 TP_PROTO(unsigned int vec_nr),
129
130 TP_ARGS(vec_nr)
131);
132
133/**
134 * softirq_raise - called immediately when a softirq is raised
135 * @vec_nr: softirq vector number
136 *
137 * When used in combination with the softirq_entry tracepoint
138 * we can determine the softirq raise to run latency.
139 */
140DEFINE_EVENT(softirq, softirq_raise,
141
142 TP_PROTO(unsigned int vec_nr),
143
144 TP_ARGS(vec_nr)
145);
146
147#endif /* _TRACE_IRQ_H */
148
149/* This part must be outside protection */
150#include <trace/define_trace.h>