Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
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 EM( TLB_REMOTE_SEND_IPI, "remote IPI send" ) \
17 EMe( TLB_REMOTE_WRONG_CPU, "remote wrong CPU" )
18
19/*
20 * First define the enums in TLB_FLUSH_REASON to be exported to userspace
21 * via TRACE_DEFINE_ENUM().
22 */
23#undef EM
24#undef EMe
25#define EM(a,b) TRACE_DEFINE_ENUM(a);
26#define EMe(a,b) TRACE_DEFINE_ENUM(a);
27
28TLB_FLUSH_REASON
29
30/*
31 * Now redefine the EM() and EMe() macros to map the enums to the strings
32 * that will be printed in the output.
33 */
34#undef EM
35#undef EMe
36#define EM(a,b) { a, b },
37#define EMe(a,b) { a, b }
38
39TRACE_EVENT(tlb_flush,
40
41 TP_PROTO(int reason, unsigned long pages),
42 TP_ARGS(reason, pages),
43
44 TP_STRUCT__entry(
45 __field( int, reason)
46 __field(unsigned long, pages)
47 ),
48
49 TP_fast_assign(
50 __entry->reason = reason;
51 __entry->pages = pages;
52 ),
53
54 TP_printk("pages:%ld reason:%s (%d)",
55 __entry->pages,
56 __print_symbolic(__entry->reason, TLB_FLUSH_REASON),
57 __entry->reason)
58);
59
60#endif /* _TRACE_TLB_H */
61
62/* This part must be outside protection */
63#include <trace/define_trace.h>