1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM vmalloc
4
5#if !defined(_TRACE_VMALLOC_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_VMALLOC_H
7
8#include <linux/tracepoint.h>
9
10/**
11 * alloc_vmap_area - called when a new vmap allocation occurs
12 * @addr:	an allocated address
13 * @size:	a requested size
14 * @align:	a requested alignment
15 * @vstart:	a requested start range
16 * @vend:	a requested end range
17 * @failed:	an allocation failed or not
18 *
19 * This event is used for a debug purpose, it can give an extra
20 * information for a developer about how often it occurs and which
21 * parameters are passed for further validation.
22 */
23TRACE_EVENT(alloc_vmap_area,
24
25	TP_PROTO(unsigned long addr, unsigned long size, unsigned long align,
26		unsigned long vstart, unsigned long vend, int failed),
27
28	TP_ARGS(addr, size, align, vstart, vend, failed),
29
30	TP_STRUCT__entry(
31		__field(unsigned long, addr)
32		__field(unsigned long, size)
33		__field(unsigned long, align)
34		__field(unsigned long, vstart)
35		__field(unsigned long, vend)
36		__field(int, failed)
37	),
38
39	TP_fast_assign(
40		__entry->addr = addr;
41		__entry->size = size;
42		__entry->align = align;
43		__entry->vstart = vstart;
44		__entry->vend = vend;
45		__entry->failed = failed;
46	),
47
48	TP_printk("va_start: %lu size=%lu align=%lu vstart=0x%lx vend=0x%lx failed=%d",
49		__entry->addr, __entry->size, __entry->align,
50		__entry->vstart, __entry->vend, __entry->failed)
51);
52
53/**
54 * purge_vmap_area_lazy - called when vmap areas were lazily freed
55 * @start:		purging start address
56 * @end:		purging end address
57 * @npurged:	numbed of purged vmap areas
58 *
59 * This event is used for a debug purpose. It gives some
60 * indication about start:end range and how many objects
61 * are released.
62 */
63TRACE_EVENT(purge_vmap_area_lazy,
64
65	TP_PROTO(unsigned long start, unsigned long end,
66		unsigned int npurged),
67
68	TP_ARGS(start, end, npurged),
69
70	TP_STRUCT__entry(
71		__field(unsigned long, start)
72		__field(unsigned long, end)
73		__field(unsigned int, npurged)
74	),
75
76	TP_fast_assign(
77		__entry->start = start;
78		__entry->end = end;
79		__entry->npurged = npurged;
80	),
81
82	TP_printk("start=0x%lx end=0x%lx num_purged=%u",
83		__entry->start, __entry->end, __entry->npurged)
84);
85
86/**
87 * free_vmap_area_noflush - called when a vmap area is freed
88 * @va_start:		a start address of VA
89 * @nr_lazy:		number of current lazy pages
90 * @nr_lazy_max:	number of maximum lazy pages
91 *
92 * This event is used for a debug purpose. It gives some
93 * indication about a VA that is released, number of current
94 * outstanding areas and a maximum allowed threshold before
95 * dropping all of them.
96 */
97TRACE_EVENT(free_vmap_area_noflush,
98
99	TP_PROTO(unsigned long va_start, unsigned long nr_lazy,
100		unsigned long nr_lazy_max),
101
102	TP_ARGS(va_start, nr_lazy, nr_lazy_max),
103
104	TP_STRUCT__entry(
105		__field(unsigned long, va_start)
106		__field(unsigned long, nr_lazy)
107		__field(unsigned long, nr_lazy_max)
108	),
109
110	TP_fast_assign(
111		__entry->va_start = va_start;
112		__entry->nr_lazy = nr_lazy;
113		__entry->nr_lazy_max = nr_lazy_max;
114	),
115
116	TP_printk("va_start=0x%lx nr_lazy=%lu nr_lazy_max=%lu",
117		__entry->va_start, __entry->nr_lazy, __entry->nr_lazy_max)
118);
119
120#endif /*  _TRACE_VMALLOC_H */
121
122/* This part must be outside protection */
123#include <trace/define_trace.h>
124