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
86DECLARE_EVENT_CLASS(iommu_map_unmap,
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(int, 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=0x%x",
105			__entry->iova, __entry->paddr, __entry->size
106	)
107);
108
109DEFINE_EVENT(iommu_map_unmap, map,
110
111	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
112
113	TP_ARGS(iova, paddr, size)
114);
115
116DEFINE_EVENT_PRINT(iommu_map_unmap, unmap,
117
118	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
119
120	TP_ARGS(iova, paddr, size),
121
122	TP_printk("IOMMU: iova=0x%016llx size=0x%x",
123			__entry->iova, __entry->size
124	)
125);
126
127DECLARE_EVENT_CLASS(iommu_error,
128
129	TP_PROTO(struct device *dev, unsigned long iova, int flags),
130
131	TP_ARGS(dev, iova, flags),
132
133	TP_STRUCT__entry(
134		__string(device, dev_name(dev))
135		__string(driver, dev_driver_string(dev))
136		__field(u64, iova)
137		__field(int, flags)
138	),
139
140	TP_fast_assign(
141		__assign_str(device, dev_name(dev));
142		__assign_str(driver, dev_driver_string(dev));
143		__entry->iova = iova;
144		__entry->flags = flags;
145	),
146
147	TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
148			__get_str(driver), __get_str(device),
149			__entry->iova, __entry->flags
150	)
151);
152
153DEFINE_EVENT(iommu_error, io_page_fault,
154
155	TP_PROTO(struct device *dev, unsigned long iova, int flags),
156
157	TP_ARGS(dev, iova, flags)
158);
159#endif /* _TRACE_IOMMU_H */
160
161/* This part must be outside protection */
162#include <trace/define_trace.h>
163