diff options
Diffstat (limited to 'include/trace/events/irq.h')
| -rw-r--r-- | include/trace/events/irq.h | 56 |
1 files changed, 32 insertions, 24 deletions
diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h index 0e4cfb694fe7..1c09820df585 100644 --- a/include/trace/events/irq.h +++ b/include/trace/events/irq.h | |||
| @@ -5,7 +5,9 @@ | |||
| 5 | #define _TRACE_IRQ_H | 5 | #define _TRACE_IRQ_H |
| 6 | 6 | ||
| 7 | #include <linux/tracepoint.h> | 7 | #include <linux/tracepoint.h> |
| 8 | #include <linux/interrupt.h> | 8 | |
| 9 | struct irqaction; | ||
| 10 | struct softirq_action; | ||
| 9 | 11 | ||
| 10 | #define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq } | 12 | #define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq } |
| 11 | #define show_softirq_name(val) \ | 13 | #define show_softirq_name(val) \ |
| @@ -84,56 +86,62 @@ TRACE_EVENT(irq_handler_exit, | |||
| 84 | 86 | ||
| 85 | DECLARE_EVENT_CLASS(softirq, | 87 | DECLARE_EVENT_CLASS(softirq, |
| 86 | 88 | ||
| 87 | TP_PROTO(struct softirq_action *h, struct softirq_action *vec), | 89 | TP_PROTO(unsigned int vec_nr), |
| 88 | 90 | ||
| 89 | TP_ARGS(h, vec), | 91 | TP_ARGS(vec_nr), |
| 90 | 92 | ||
| 91 | TP_STRUCT__entry( | 93 | TP_STRUCT__entry( |
| 92 | __field( int, vec ) | 94 | __field( unsigned int, vec ) |
| 93 | ), | 95 | ), |
| 94 | 96 | ||
| 95 | TP_fast_assign( | 97 | TP_fast_assign( |
| 96 | __entry->vec = (int)(h - vec); | 98 | __entry->vec = vec_nr; |
| 97 | ), | 99 | ), |
| 98 | 100 | ||
| 99 | TP_printk("vec=%d [action=%s]", __entry->vec, | 101 | TP_printk("vec=%u [action=%s]", __entry->vec, |
| 100 | show_softirq_name(__entry->vec)) | 102 | show_softirq_name(__entry->vec)) |
| 101 | ); | 103 | ); |
| 102 | 104 | ||
| 103 | /** | 105 | /** |
| 104 | * softirq_entry - called immediately before the softirq handler | 106 | * softirq_entry - called immediately before the softirq handler |
| 105 | * @h: pointer to struct softirq_action | 107 | * @vec_nr: softirq vector number |
| 106 | * @vec: pointer to first struct softirq_action in softirq_vec array | ||
| 107 | * | 108 | * |
| 108 | * The @h parameter, contains a pointer to the struct softirq_action | 109 | * When used in combination with the softirq_exit tracepoint |
| 109 | * which has a pointer to the action handler that is called. By subtracting | 110 | * we can determine the softirq handler runtine. |
| 110 | * the @vec pointer from the @h pointer, we can determine the softirq | ||
| 111 | * number. Also, when used in combination with the softirq_exit tracepoint | ||
| 112 | * we can determine the softirq latency. | ||
| 113 | */ | 111 | */ |
| 114 | DEFINE_EVENT(softirq, softirq_entry, | 112 | DEFINE_EVENT(softirq, softirq_entry, |
| 115 | 113 | ||
| 116 | TP_PROTO(struct softirq_action *h, struct softirq_action *vec), | 114 | TP_PROTO(unsigned int vec_nr), |
| 117 | 115 | ||
| 118 | TP_ARGS(h, vec) | 116 | TP_ARGS(vec_nr) |
| 119 | ); | 117 | ); |
| 120 | 118 | ||
| 121 | /** | 119 | /** |
| 122 | * softirq_exit - called immediately after the softirq handler returns | 120 | * softirq_exit - called immediately after the softirq handler returns |
| 123 | * @h: pointer to struct softirq_action | 121 | * @vec_nr: softirq vector number |
| 124 | * @vec: pointer to first struct softirq_action in softirq_vec array | ||
| 125 | * | 122 | * |
| 126 | * The @h parameter contains a pointer to the struct softirq_action | 123 | * When used in combination with the softirq_entry tracepoint |
| 127 | * that has handled the softirq. By subtracting the @vec pointer from | 124 | * we can determine the softirq handler runtine. |
| 128 | * the @h pointer, we can determine the softirq number. Also, when used in | ||
| 129 | * combination with the softirq_entry tracepoint we can determine the softirq | ||
| 130 | * latency. | ||
| 131 | */ | 125 | */ |
| 132 | DEFINE_EVENT(softirq, softirq_exit, | 126 | DEFINE_EVENT(softirq, softirq_exit, |
| 133 | 127 | ||
| 134 | TP_PROTO(struct softirq_action *h, struct softirq_action *vec), | 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 | */ | ||
| 140 | DEFINE_EVENT(softirq, softirq_raise, | ||
| 141 | |||
| 142 | TP_PROTO(unsigned int vec_nr), | ||
| 135 | 143 | ||
| 136 | TP_ARGS(h, vec) | 144 | TP_ARGS(vec_nr) |
| 137 | ); | 145 | ); |
| 138 | 146 | ||
| 139 | #endif /* _TRACE_IRQ_H */ | 147 | #endif /* _TRACE_IRQ_H */ |
