101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM arm-ipi
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#if !defined(_TRACE_ARM_IPI_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_ARM_IPI_H
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#include <linux/tracepoint.h>
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#define show_arm_ipi_name(val) \
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__print_symbolic(val, \
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{ 0, "IPI_WAKEUP" }, \
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{ 1, "IPI_TIMER" }, \
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{ 2, "IPI_RESCHEDULE" }, \
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{ 3, "IPI_CALL_FUNC" }, \
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{ 4, "IPI_CALL_FUNC_SINGLE" }, \
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{ 5, "IPI_CPU_STOP" }, \
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{ 6, "IPI_COMPLETION" }, \
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{ 7, "IPI_CPU_BACKTRACE" })
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DECLARE_EVENT_CLASS(arm_ipi,
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TP_PROTO(unsigned int ipi_nr),
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TP_ARGS(ipi_nr),
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TP_STRUCT__entry(
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__field( unsigned int, ipi )
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),
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TP_fast_assign(
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__entry->ipi = ipi_nr;
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),
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TP_printk("ipi=%u [action=%s]", __entry->ipi,
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show_arm_ipi_name(__entry->ipi))
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);
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/**
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* arm_ipi_entry - called in the arm-generic ipi handler immediately before
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* entering ipi-type handler
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* @ipi_nr: ipi number
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*
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* When used in combination with the arm_ipi_exit tracepoint
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* we can determine the ipi handler runtine.
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*/
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DEFINE_EVENT(arm_ipi, arm_ipi_entry,
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TP_PROTO(unsigned int ipi_nr),
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TP_ARGS(ipi_nr)
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);
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/**
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* arm_ipi_exit - called in the arm-generic ipi handler immediately
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* after the ipi-type handler returns
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* @ipi_nr: ipi number
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*
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* When used in combination with the arm_ipi_entry tracepoint
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* we can determine the ipi handler runtine.
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*/
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DEFINE_EVENT(arm_ipi, arm_ipi_exit,
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TP_PROTO(unsigned int ipi_nr),
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TP_ARGS(ipi_nr)
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);
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/**
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* arm_ipi_send - called as the ipi target mask is built, immediately
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* before the register is written
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* @ipi_nr: ipi number
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* @dest: cpu to send to
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*
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* When used in combination with the arm_ipi_entry tracepoint
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* we can determine the ipi raise to run latency.
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*/
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TRACE_EVENT(arm_ipi_send,
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TP_PROTO(unsigned int ipi_nr, int dest),
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TP_ARGS(ipi_nr, dest),
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TP_STRUCT__entry(
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__field( unsigned int, ipi )
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__field( int , dest )
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),
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TP_fast_assign(
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__entry->ipi = ipi_nr;
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__entry->dest = dest;
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),
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TP_printk("dest=%d ipi=%u [action=%s]", __entry->dest,
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__entry->ipi, show_arm_ipi_name(__entry->ipi))
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);
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#endif /* _TRACE_ARM_IPI_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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