summaryrefslogtreecommitdiff
path: root/drivers/thunderbolt/trace.h
blob: 6d0776514d12e19342441b6b3bb17c99c1200170 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Thunderbolt tracing support
 *
 * Copyright (C) 2024, Intel Corporation
 * Author: Mika Westerberg <mika.westerberg@linux.intel.com>
 *	   Gil Fine <gil.fine@intel.com>
 */

#undef TRACE_SYSTEM
#define TRACE_SYSTEM thunderbolt

#if !defined(TB_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define TB_TRACE_H_

#include <linux/trace_seq.h>
#include <linux/tracepoint.h>

#include "tb_msgs.h"

#define tb_cfg_type_name(type)		{ type, #type }
#define show_type_name(val)					\
	__print_symbolic(val,					\
		tb_cfg_type_name(TB_CFG_PKG_READ),		\
		tb_cfg_type_name(TB_CFG_PKG_WRITE),		\
		tb_cfg_type_name(TB_CFG_PKG_ERROR),		\
		tb_cfg_type_name(TB_CFG_PKG_NOTIFY_ACK),	\
		tb_cfg_type_name(TB_CFG_PKG_EVENT),		\
		tb_cfg_type_name(TB_CFG_PKG_XDOMAIN_REQ),	\
		tb_cfg_type_name(TB_CFG_PKG_XDOMAIN_RESP),	\
		tb_cfg_type_name(TB_CFG_PKG_OVERRIDE),		\
		tb_cfg_type_name(TB_CFG_PKG_RESET),		\
		tb_cfg_type_name(TB_CFG_PKG_ICM_EVENT),		\
		tb_cfg_type_name(TB_CFG_PKG_ICM_CMD),		\
		tb_cfg_type_name(TB_CFG_PKG_ICM_RESP))

#ifndef TB_TRACE_HELPERS
#define TB_TRACE_HELPERS
static inline const char *show_data_read_write(struct trace_seq *p,
					       const u32 *data)
{
	const struct cfg_read_pkg *msg = (const struct cfg_read_pkg *)data;
	const char *ret = trace_seq_buffer_ptr(p);

	trace_seq_printf(p, "offset=%#x, len=%u, port=%d, config=%#x, seq=%d, ",
			 msg->addr.offset, msg->addr.length, msg->addr.port,
			 msg->addr.space, msg->addr.seq);

	return ret;
}

static inline const char *show_data_error(struct trace_seq *p, const u32 *data)
{
	const struct cfg_error_pkg *msg = (const struct cfg_error_pkg *)data;
	const char *ret = trace_seq_buffer_ptr(p);

	trace_seq_printf(p, "error=%#x, port=%d, plug=%#x, ", msg->error,
			 msg->port, msg->pg);

	return ret;
}

static inline const char *show_data_event(struct trace_seq *p, const u32 *data)
{
	const struct cfg_event_pkg *msg = (const struct cfg_event_pkg *)data;
	const char *ret = trace_seq_buffer_ptr(p);

	trace_seq_printf(p, "port=%d, unplug=%#x, ", msg->port, msg->unplug);

	return ret;
}

static inline const char *show_route(struct trace_seq *p, const u32 *data)
{
	const struct tb_cfg_header *header = (const struct tb_cfg_header *)data;
	const char *ret = trace_seq_buffer_ptr(p);

	trace_seq_printf(p, "route=%llx, ", tb_cfg_get_route(header));

	return ret;
}

static inline const char *show_data(struct trace_seq *p, u8 type,
				    const u32 *data, u32 length)
{
	const char *ret = trace_seq_buffer_ptr(p);
	const char *prefix = "";
	int i;

	switch (type) {
	case TB_CFG_PKG_READ:
	case TB_CFG_PKG_WRITE:
		show_route(p, data);
		show_data_read_write(p, data);
		break;

	case TB_CFG_PKG_ERROR:
		show_route(p, data);
		show_data_error(p, data);
		break;

	case TB_CFG_PKG_EVENT:
		show_route(p, data);
		show_data_event(p, data);
		break;

	case TB_CFG_PKG_ICM_EVENT:
	case TB_CFG_PKG_ICM_CMD:
	case TB_CFG_PKG_ICM_RESP:
		/* ICM messages always target the host router */
		trace_seq_puts(p, "route=0, ");
		break;

	default:
		show_route(p, data);
		break;
	}

	trace_seq_printf(p, "data=[");
	for (i = 0; i < length; i++) {
		trace_seq_printf(p, "%s0x%08x", prefix, data[i]);
		prefix = ", ";
	}
	trace_seq_printf(p, "]");
	trace_seq_putc(p, 0);

	return ret;
}
#endif

DECLARE_EVENT_CLASS(tb_raw,
	TP_PROTO(int index, u8 type, const void *data, size_t size),
	TP_ARGS(index, type, data, size),
	TP_STRUCT__entry(
		__field(int, index)
		__field(u8, type)
		__field(size_t, size)
		__dynamic_array(u32, data, size / 4)
	),
	TP_fast_assign(
		__entry->index = index;
		__entry->type = type;
		__entry->size = size / 4;
		memcpy(__get_dynamic_array(data), data, size);
	),
	TP_printk("type=%s, size=%zd, domain=%d, %s",
		  show_type_name(__entry->type), __entry->size, __entry->index,
		  show_data(p, __entry->type, __get_dynamic_array(data),
			    __entry->size)
	)
);

DEFINE_EVENT(tb_raw, tb_tx,
	TP_PROTO(int index, u8 type, const void *data, size_t size),
	TP_ARGS(index, type, data, size)
);

DEFINE_EVENT(tb_raw, tb_event,
	TP_PROTO(int index, u8 type, const void *data, size_t size),
	TP_ARGS(index, type, data, size)
);

TRACE_EVENT(tb_rx,
	TP_PROTO(int index, u8 type, const void *data, size_t size, bool dropped),
	TP_ARGS(index, type, data, size, dropped),
	TP_STRUCT__entry(
		__field(int, index)
		__field(u8, type)
		__field(size_t, size)
		__dynamic_array(u32, data, size / 4)
		__field(bool, dropped)
	),
	TP_fast_assign(
		__entry->index = index;
		__entry->type = type;
		__entry->size = size / 4;
		memcpy(__get_dynamic_array(data), data, size);
		__entry->dropped = dropped;
	),
	TP_printk("type=%s, dropped=%u, size=%zd, domain=%d, %s",
		  show_type_name(__entry->type), __entry->dropped,
		  __entry->size, __entry->index,
		  show_data(p, __entry->type, __get_dynamic_array(data),
			    __entry->size)
	)
);

#endif /* TB_TRACE_H_ */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace

/* This part must be outside protection */
#include <trace/define_trace.h>