1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * iommu trace points
4 *
5 * Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
6 *
7 */
8#undef TRACE_SYSTEM
9#define TRACE_SYSTEM iommu
10
11#if !defined(_TRACE_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ)
12#define _TRACE_IOMMU_H
13
14#include <linux/tracepoint.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
79TRACE_EVENT(map,
80
81	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
82
83	TP_ARGS(iova, paddr, size),
84
85	TP_STRUCT__entry(
86		__field(u64, iova)
87		__field(u64, paddr)
88		__field(size_t, size)
89	),
90
91	TP_fast_assign(
92		__entry->iova = iova;
93		__entry->paddr = paddr;
94		__entry->size = size;
95	),
96
97	TP_printk("IOMMU: iova=0x%016llx - 0x%016llx paddr=0x%016llx size=%zu",
98		  __entry->iova, __entry->iova + __entry->size, __entry->paddr,
99		  __entry->size
100	)
101);
102
103TRACE_EVENT(unmap,
104
105	TP_PROTO(unsigned long iova, size_t size, size_t unmapped_size),
106
107	TP_ARGS(iova, size, unmapped_size),
108
109	TP_STRUCT__entry(
110		__field(u64, iova)
111		__field(size_t, size)
112		__field(size_t, unmapped_size)
113	),
114
115	TP_fast_assign(
116		__entry->iova = iova;
117		__entry->size = size;
118		__entry->unmapped_size = unmapped_size;
119	),
120
121	TP_printk("IOMMU: iova=0x%016llx - 0x%016llx size=%zu unmapped_size=%zu",
122		  __entry->iova, __entry->iova + __entry->size,
123		  __entry->size, __entry->unmapped_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