tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * iommu trace points
3 *
4 * Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
5 *
6 */
7#undef TRACE_SYSTEM
8#define TRACE_SYSTEM iommu
9
10#if !defined(_TRACE_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ)
11#define _TRACE_IOMMU_H
12
13#include <linux/tracepoint.h>
14
15struct device;
16
17DECLARE_EVENT_CLASS(iommu_group_event,
18
19 TP_PROTO(int group_id, struct device *dev),
20
21 TP_ARGS(group_id, dev),
22
23 TP_STRUCT__entry(
24 __field(int, gid)
25 __string(device, dev_name(dev))
26 ),
27
28 TP_fast_assign(
29 __entry->gid = group_id;
30 __assign_str(device, dev_name(dev));
31 ),
32
33 TP_printk("IOMMU: groupID=%d device=%s",
34 __entry->gid, __get_str(device)
35 )
36);
37
38DEFINE_EVENT(iommu_group_event, add_device_to_group,
39
40 TP_PROTO(int group_id, struct device *dev),
41
42 TP_ARGS(group_id, dev)
43
44);
45
46DEFINE_EVENT(iommu_group_event, remove_device_from_group,
47
48 TP_PROTO(int group_id, struct device *dev),
49
50 TP_ARGS(group_id, dev)
51);
52
53DECLARE_EVENT_CLASS(iommu_device_event,
54
55 TP_PROTO(struct device *dev),
56
57 TP_ARGS(dev),
58
59 TP_STRUCT__entry(
60 __string(device, dev_name(dev))
61 ),
62
63 TP_fast_assign(
64 __assign_str(device, dev_name(dev));
65 ),
66
67 TP_printk("IOMMU: device=%s", __get_str(device)
68 )
69);
70
71DEFINE_EVENT(iommu_device_event, attach_device_to_domain,
72
73 TP_PROTO(struct device *dev),
74
75 TP_ARGS(dev)
76);
77
78DEFINE_EVENT(iommu_device_event, detach_device_from_domain,
79
80 TP_PROTO(struct device *dev),
81
82 TP_ARGS(dev)
83);
84
85TRACE_EVENT(map,
86
87 TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
88
89 TP_ARGS(iova, paddr, size),
90
91 TP_STRUCT__entry(
92 __field(u64, iova)
93 __field(u64, paddr)
94 __field(size_t, size)
95 ),
96
97 TP_fast_assign(
98 __entry->iova = iova;
99 __entry->paddr = paddr;
100 __entry->size = size;
101 ),
102
103 TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=%zu",
104 __entry->iova, __entry->paddr, __entry->size
105 )
106);
107
108TRACE_EVENT(unmap,
109
110 TP_PROTO(unsigned long iova, size_t size, size_t unmapped_size),
111
112 TP_ARGS(iova, size, unmapped_size),
113
114 TP_STRUCT__entry(
115 __field(u64, iova)
116 __field(size_t, size)
117 __field(size_t, unmapped_size)
118 ),
119
120 TP_fast_assign(
121 __entry->iova = iova;
122 __entry->size = size;
123 __entry->unmapped_size = unmapped_size;
124 ),
125
126 TP_printk("IOMMU: iova=0x%016llx size=%zu unmapped_size=%zu",
127 __entry->iova, __entry->size, __entry->unmapped_size
128 )
129);
130
131DECLARE_EVENT_CLASS(iommu_error,
132
133 TP_PROTO(struct device *dev, unsigned long iova, int flags),
134
135 TP_ARGS(dev, iova, flags),
136
137 TP_STRUCT__entry(
138 __string(device, dev_name(dev))
139 __string(driver, dev_driver_string(dev))
140 __field(u64, iova)
141 __field(int, flags)
142 ),
143
144 TP_fast_assign(
145 __assign_str(device, dev_name(dev));
146 __assign_str(driver, dev_driver_string(dev));
147 __entry->iova = iova;
148 __entry->flags = flags;
149 ),
150
151 TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
152 __get_str(driver), __get_str(device),
153 __entry->iova, __entry->flags
154 )
155);
156
157DEFINE_EVENT(iommu_error, io_page_fault,
158
159 TP_PROTO(struct device *dev, unsigned long iova, int flags),
160
161 TP_ARGS(dev, iova, flags)
162);
163#endif /* _TRACE_IOMMU_H */
164
165/* This part must be outside protection */
166#include <trace/define_trace.h>