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 | |