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#include <linux/pci.h>
15
16struct device;
17
18DECLARE_EVENT_CLASS(iommu_group_event,
19
20	TP_PROTO(int group_id, struct device *dev),
21
22	TP_ARGS(group_id, dev),
23
24	TP_STRUCT__entry(
25		__field(int, gid)
26		__string(device, dev_name(dev))
27	),
28
29	TP_fast_assign(
30		__entry->gid = group_id;
31		__assign_str(device, dev_name(dev));
32	),
33
34	TP_printk("IOMMU: groupID=%d device=%s",
35			__entry->gid, __get_str(device)
36	)
37);
38
39DEFINE_EVENT(iommu_group_event, add_device_to_group,
40
41	TP_PROTO(int group_id, struct device *dev),
42
43	TP_ARGS(group_id, dev)
44
45);
46
47DEFINE_EVENT(iommu_group_event, remove_device_from_group,
48
49	TP_PROTO(int group_id, struct device *dev),
50
51	TP_ARGS(group_id, dev)
52);
53
54DECLARE_EVENT_CLASS(iommu_device_event,
55
56	TP_PROTO(struct device *dev),
57
58	TP_ARGS(dev),
59
60	TP_STRUCT__entry(
61		__string(device, dev_name(dev))
62	),
63
64	TP_fast_assign(
65		__assign_str(device, dev_name(dev));
66	),
67
68	TP_printk("IOMMU: device=%s", __get_str(device)
69	)
70);
71
72DEFINE_EVENT(iommu_device_event, attach_device_to_domain,
73
74	TP_PROTO(struct device *dev),
75
76	TP_ARGS(dev)
77);
78
79DEFINE_EVENT(iommu_device_event, detach_device_from_domain,
80
81	TP_PROTO(struct device *dev),
82
83	TP_ARGS(dev)
84);
85
86TRACE_EVENT(map,
87
88	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
89
90	TP_ARGS(iova, paddr, size),
91
92	TP_STRUCT__entry(
93		__field(u64, iova)
94		__field(u64, paddr)
95		__field(size_t, size)
96	),
97
98	TP_fast_assign(
99		__entry->iova = iova;
100		__entry->paddr = paddr;
101		__entry->size = size;
102	),
103
104	TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=%zu",
105			__entry->iova, __entry->paddr, __entry->size
106	)
107);
108
109TRACE_EVENT(unmap,
110
111	TP_PROTO(unsigned long iova, size_t size, size_t unmapped_size),
112
113	TP_ARGS(iova, size, unmapped_size),
114
115	TP_STRUCT__entry(
116		__field(u64, iova)
117		__field(size_t, size)
118		__field(size_t, unmapped_size)
119	),
120
121	TP_fast_assign(
122		__entry->iova = iova;
123		__entry->size = size;
124		__entry->unmapped_size = unmapped_size;
125	),
126
127	TP_printk("IOMMU: iova=0x%016llx size=%zu unmapped_size=%zu",
128			__entry->iova, __entry->size, __entry->unmapped_size
129	)
130);
131
132DECLARE_EVENT_CLASS(iommu_error,
133
134	TP_PROTO(struct device *dev, unsigned long iova, int flags),
135
136	TP_ARGS(dev, iova, flags),
137
138	TP_STRUCT__entry(
139		__string(device, dev_name(dev))
140		__string(driver, dev_driver_string(dev))
141		__field(u64, iova)
142		__field(int, flags)
143	),
144
145	TP_fast_assign(
146		__assign_str(device, dev_name(dev));
147		__assign_str(driver, dev_driver_string(dev));
148		__entry->iova = iova;
149		__entry->flags = flags;
150	),
151
152	TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
153			__get_str(driver), __get_str(device),
154			__entry->iova, __entry->flags
155	)
156);
157
158DEFINE_EVENT(iommu_error, io_page_fault,
159
160	TP_PROTO(struct device *dev, unsigned long iova, int flags),
161
162	TP_ARGS(dev, iova, flags)
163);
164#endif /* _TRACE_IOMMU_H */
165
166/* This part must be outside protection */
167#include <trace/define_trace.h>
168