1 /* SPDX-License-Identifier: GPL-2.0 */
2 #undef TRACE_SYSTEM
3 #define TRACE_SYSTEM tlb
4
5 #if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define _TRACE_TLB_H
7
8 #include <linux/mm_types.h>
9 #include <linux/tracepoint.h>
10
11 #define TLB_FLUSH_REASON \
12 EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \
13 EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \
14 EM( TLB_LOCAL_SHOOTDOWN, "local shootdown" ) \
15 EM( TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" ) \
16 EMe( TLB_REMOTE_SEND_IPI, "remote ipi send" )
17
18 /*
19 * First define the enums in TLB_FLUSH_REASON to be exported to userspace
20 * via TRACE_DEFINE_ENUM().
21 */
22 #undef EM
23 #undef EMe
24 #define EM(a,b) TRACE_DEFINE_ENUM(a);
25 #define EMe(a,b) TRACE_DEFINE_ENUM(a);
26
27 TLB_FLUSH_REASON
28
29 /*
30 * Now redefine the EM() and EMe() macros to map the enums to the strings
31 * that will be printed in the output.
32 */
33 #undef EM
34 #undef EMe
35 #define EM(a,b) { a, b },
36 #define EMe(a,b) { a, b }
37
38 TRACE_EVENT(tlb_flush,
39
40 TP_PROTO(int reason, unsigned long pages),
41 TP_ARGS(reason, pages),
42
43 TP_STRUCT__entry(
44 __field( int, reason)
45 __field(unsigned long, pages)
46 ),
47
48 TP_fast_assign(
49 __entry->reason = reason;
50 __entry->pages = pages;
51 ),
52
53 TP_printk("pages:%ld reason:%s (%d)",
54 __entry->pages,
55 __print_symbolic(__entry->reason, TLB_FLUSH_REASON),
56 __entry->reason)
57 );
58
59 #endif /* _TRACE_TLB_H */
60
61 /* This part must be outside protection */
62 #include <trace/define_trace.h>
63
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