| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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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 | /* |
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| 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 | /* |
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| 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 /* _TRACE_TLB_H */ |
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| 61 | |
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| 62 | /* This part must be outside protection */ |
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| 63 | #include <trace/define_trace.h> |
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| 64 | |
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