| 1 |
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| 2 | #undef TRACE_SYSTEM
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| 3 | #define TRACE_SYSTEM tlb
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| 4 |
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| 5 | #if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)
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| 6 | #define _TRACE_TLB_H
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| 7 |
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| 8 | #include <linux/mm_types.h>
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| 9 | #include <linux/tracepoint.h>
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| 10 |
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| 11 | #define TLB_FLUSH_REASON \
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| 12 | EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \
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| 13 | EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \
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| 14 | EM( TLB_LOCAL_SHOOTDOWN, "local shootdown" ) \
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| 15 | EM( TLB_LOCAL_MM_SHOOTDOWN, "local MM shootdown" ) \
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| 16 | EM( TLB_REMOTE_SEND_IPI, "remote IPI send" ) \
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| 17 | EMe( TLB_REMOTE_WRONG_CPU, "remote wrong CPU" )
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| 18 |
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| 19 | |
| 20 | * First define the enums in TLB_FLUSH_REASON to be exported to userspace
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| 21 | * via TRACE_DEFINE_ENUM().
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| 22 |
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| 23 | #undef EM
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| 24 | #undef EMe
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| 25 | #define EM(a,b) TRACE_DEFINE_ENUM(a);
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| 26 | #define EMe(a,b) TRACE_DEFINE_ENUM(a);
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| 27 |
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| 28 | TLB_FLUSH_REASON
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| 29 |
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| 30 | |
| 31 | * Now redefine the EM() and EMe() macros to map the enums to the strings
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| 32 | * that will be printed in the output.
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| 33 |
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| 34 | #undef EM
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| 35 | #undef EMe
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| 36 | #define EM(a,b) { a, b },
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| 37 | #define EMe(a,b) { a, b }
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| 38 |
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| 39 | TRACE_EVENT(tlb_flush,
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| 40 |
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| 41 | TP_PROTO(int reason, unsigned long pages),
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| 42 | TP_ARGS(reason, pages),
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| 43 |
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| 44 | TP_STRUCT__entry(
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| 45 | __field( int, reason)
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| 46 | __field(unsigned long, pages)
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| 47 | ),
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| 48 |
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| 49 | TP_fast_assign(
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| 50 | __entry->reason = reason;
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| 51 | __entry->pages = pages;
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| 52 | ),
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| 53 |
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| 54 | TP_printk("pages:%ld reason:%s (%d)",
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| 55 | __entry->pages,
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| 56 | __print_symbolic(__entry->reason, TLB_FLUSH_REASON),
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| 57 | __entry->reason)
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| 58 | );
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| 59 |
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| 60 | #endif
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| 61 |
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| 62 |
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| 63 | #include <trace/define_trace.h>
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