1 /* SPDX-License-Identifier: GPL-2.0 */
2 #undef TRACE_SYSTEM
3 #define TRACE_SYSTEM pagemap
4 
5 #if !defined(_TRACE_PAGEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define _TRACE_PAGEMAP_H
7 
8 #include <linux/tracepoint.h>
9 #include <linux/mm.h>
10 
11 #define	PAGEMAP_MAPPED		0x0001u
12 #define PAGEMAP_ANONYMOUS	0x0002u
13 #define PAGEMAP_FILE		0x0004u
14 #define PAGEMAP_SWAPCACHE	0x0008u
15 #define PAGEMAP_SWAPBACKED	0x0010u
16 #define PAGEMAP_MAPPEDDISK	0x0020u
17 #define PAGEMAP_BUFFERS		0x0040u
18 
19 #define trace_pagemap_flags(folio) ( \
20 	(folio_test_anon(folio)		? PAGEMAP_ANONYMOUS  : PAGEMAP_FILE) | \
21 	(folio_mapped(folio)		? PAGEMAP_MAPPED     : 0) | \
22 	(folio_test_swapcache(folio)	? PAGEMAP_SWAPCACHE  : 0) | \
23 	(folio_test_swapbacked(folio)	? PAGEMAP_SWAPBACKED : 0) | \
24 	(folio_test_mappedtodisk(folio)	? PAGEMAP_MAPPEDDISK : 0) | \
25 	(folio_test_private(folio)	? PAGEMAP_BUFFERS    : 0) \
26 	)
27 
28 TRACE_EVENT(mm_lru_insertion,
29 
30 	TP_PROTO(struct folio *folio),
31 
32 	TP_ARGS(folio),
33 
34 	TP_STRUCT__entry(
35 		__field(struct folio *,	folio	)
36 		__field(unsigned long,	pfn	)
37 		__field(enum lru_list,	lru	)
38 		__field(unsigned long,	flags	)
39 	),
40 
41 	TP_fast_assign(
42 		__entry->folio	= folio;
43 		__entry->pfn	= folio_pfn(folio);
44 		__entry->lru	= folio_lru_list(folio);
45 		__entry->flags	= trace_pagemap_flags(folio);
46 	),
47 
48 	/* Flag format is based on page-types.c formatting for pagemap */
49 	TP_printk("folio=%p pfn=0x%lx lru=%d flags=%s%s%s%s%s%s",
50 			__entry->folio,
51 			__entry->pfn,
52 			__entry->lru,
53 			__entry->flags & PAGEMAP_MAPPED		? "M" : " ",
54 			__entry->flags & PAGEMAP_ANONYMOUS	? "a" : "f",
55 			__entry->flags & PAGEMAP_SWAPCACHE	? "s" : " ",
56 			__entry->flags & PAGEMAP_SWAPBACKED	? "b" : " ",
57 			__entry->flags & PAGEMAP_MAPPEDDISK	? "d" : " ",
58 			__entry->flags & PAGEMAP_BUFFERS	? "B" : " ")
59 );
60 
61 TRACE_EVENT(mm_lru_activate,
62 
63 	TP_PROTO(struct folio *folio),
64 
65 	TP_ARGS(folio),
66 
67 	TP_STRUCT__entry(
68 		__field(struct folio *,	folio	)
69 		__field(unsigned long,	pfn	)
70 	),
71 
72 	TP_fast_assign(
73 		__entry->folio	= folio;
74 		__entry->pfn	= folio_pfn(folio);
75 	),
76 
77 	TP_printk("folio=%p pfn=0x%lx", __entry->folio, __entry->pfn)
78 );
79 
80 #endif /* _TRACE_PAGEMAP_H */
81 
82 /* This part must be outside protection */
83 #include <trace/define_trace.h>
84