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1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
2/*
3* Copyright(c) 2015 - 2018 Intel Corporation.
4*/
5
6#if !defined(__HFI1_TRACE_EXTRA_H) || defined(TRACE_HEADER_MULTI_READ)
7#define __HFI1_TRACE_EXTRA_H
8
9#include <linux/tracepoint.h>
10#include <linux/trace_seq.h>
11
12#include "hfi.h"
13
14/*
15 * Note:
16 * This produces a REALLY ugly trace in the console output when the string is
17 * too long.
18 */
19
20#undef TRACE_SYSTEM
21#define TRACE_SYSTEM hfi1_dbg
22
23#define MAX_MSG_LEN 512
24
25#pragma GCC diagnostic push
26#ifndef __clang__
27#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
28#endif
29
30DECLARE_EVENT_CLASS(hfi1_trace_template,
31 TP_PROTO(const char *function, struct va_format *vaf),
32 TP_ARGS(function, vaf),
33 TP_STRUCT__entry(__string(function, function)
34 __vstring(msg, vaf->fmt, vaf->va)
35 ),
36 TP_fast_assign(__assign_str(function, function);
37 __assign_vstr(msg, vaf->fmt, vaf->va);
38 ),
39 TP_printk("(%s) %s",
40 __get_str(function),
41 __get_str(msg))
42);
43
44#pragma GCC diagnostic pop
45
46/*
47 * It may be nice to macroize the __hfi1_trace but the va_* stuff requires an
48 * actual function to work and can not be in a macro.
49 */
50#define __hfi1_trace_def(lvl) \
51void __printf(2, 3) __hfi1_trace_##lvl(const char *funct, char *fmt, ...); \
52 \
53DEFINE_EVENT(hfi1_trace_template, hfi1_ ##lvl, \
54 TP_PROTO(const char *function, struct va_format *vaf), \
55 TP_ARGS(function, vaf))
56
57#define __hfi1_trace_fn(lvl) \
58void __printf(2, 3) __hfi1_trace_##lvl(const char *func, char *fmt, ...)\
59{ \
60 struct va_format vaf = { \
61 .fmt = fmt, \
62 }; \
63 va_list args; \
64 \
65 va_start(args, fmt); \
66 vaf.va = &args; \
67 trace_hfi1_ ##lvl(func, &vaf); \
68 va_end(args); \
69 return; \
70}
71
72/*
73 * To create a new trace level simply define it below and as a __hfi1_trace_fn
74 * in trace.c. This will create all the hooks for calling
75 * hfi1_cdbg(LVL, fmt, ...); as well as take care of all
76 * the debugfs stuff.
77 */
78__hfi1_trace_def(AFFINITY);
79__hfi1_trace_def(PKT);
80__hfi1_trace_def(PROC);
81__hfi1_trace_def(SDMA);
82__hfi1_trace_def(LINKVERB);
83__hfi1_trace_def(DEBUG);
84__hfi1_trace_def(SNOOP);
85__hfi1_trace_def(CNTR);
86__hfi1_trace_def(PIO);
87__hfi1_trace_def(DC8051);
88__hfi1_trace_def(FIRMWARE);
89__hfi1_trace_def(RCVCTRL);
90__hfi1_trace_def(TID);
91__hfi1_trace_def(MMU);
92__hfi1_trace_def(IOCTL);
93
94#define hfi1_cdbg(which, fmt, ...) \
95 __hfi1_trace_##which(__func__, fmt, ##__VA_ARGS__)
96
97#define hfi1_dbg(fmt, ...) \
98 hfi1_cdbg(DEBUG, fmt, ##__VA_ARGS__)
99
100/*
101 * Define HFI1_EARLY_DBG at compile time or here to enable early trace
102 * messages. Do not check in an enablement for this.
103 */
104
105#ifdef HFI1_EARLY_DBG
106#define hfi1_dbg_early(fmt, ...) \
107 trace_printk(fmt, ##__VA_ARGS__)
108#else
109#define hfi1_dbg_early(fmt, ...)
110#endif
111
112#endif /* __HFI1_TRACE_EXTRA_H */
113
114#undef TRACE_INCLUDE_PATH
115#undef TRACE_INCLUDE_FILE
116#define TRACE_INCLUDE_PATH .
117#define TRACE_INCLUDE_FILE trace_dbg
118#include <trace/define_trace.h>
1/*
2* Copyright(c) 2015 - 2018 Intel Corporation.
3*
4* This file is provided under a dual BSD/GPLv2 license. When using or
5* redistributing this file, you may do so under either license.
6*
7* GPL LICENSE SUMMARY
8*
9* This program is free software; you can redistribute it and/or modify
10* it under the terms of version 2 of the GNU General Public License as
11* published by the Free Software Foundation.
12*
13* This program is distributed in the hope that it will be useful, but
14* WITHOUT ANY WARRANTY; without even the implied warranty of
15* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16* General Public License for more details.
17*
18* BSD LICENSE
19*
20* Redistribution and use in source and binary forms, with or without
21* modification, are permitted provided that the following conditions
22* are met:
23*
24* - Redistributions of source code must retain the above copyright
25* notice, this list of conditions and the following disclaimer.
26* - Redistributions in binary form must reproduce the above copyright
27* notice, this list of conditions and the following disclaimer in
28* the documentation and/or other materials provided with the
29* distribution.
30* - Neither the name of Intel Corporation nor the names of its
31* contributors may be used to endorse or promote products derived
32* from this software without specific prior written permission.
33*
34* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
35* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
36* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
37* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
38* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
39* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
40* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
41* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
42* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
43* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
44* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45*
46*/
47#if !defined(__HFI1_TRACE_EXTRA_H) || defined(TRACE_HEADER_MULTI_READ)
48#define __HFI1_TRACE_EXTRA_H
49
50#include <linux/tracepoint.h>
51#include <linux/trace_seq.h>
52
53#include "hfi.h"
54
55/*
56 * Note:
57 * This produces a REALLY ugly trace in the console output when the string is
58 * too long.
59 */
60
61#undef TRACE_SYSTEM
62#define TRACE_SYSTEM hfi1_dbg
63
64#define MAX_MSG_LEN 512
65
66DECLARE_EVENT_CLASS(hfi1_trace_template,
67 TP_PROTO(const char *function, struct va_format *vaf),
68 TP_ARGS(function, vaf),
69 TP_STRUCT__entry(__string(function, function)
70 __dynamic_array(char, msg, MAX_MSG_LEN)
71 ),
72 TP_fast_assign(__assign_str(function, function);
73 WARN_ON_ONCE(vsnprintf
74 (__get_dynamic_array(msg),
75 MAX_MSG_LEN, vaf->fmt,
76 *vaf->va) >=
77 MAX_MSG_LEN);
78 ),
79 TP_printk("(%s) %s",
80 __get_str(function),
81 __get_str(msg))
82);
83
84/*
85 * It may be nice to macroize the __hfi1_trace but the va_* stuff requires an
86 * actual function to work and can not be in a macro.
87 */
88#define __hfi1_trace_def(lvl) \
89void __printf(2, 3) __hfi1_trace_##lvl(const char *funct, char *fmt, ...); \
90 \
91DEFINE_EVENT(hfi1_trace_template, hfi1_ ##lvl, \
92 TP_PROTO(const char *function, struct va_format *vaf), \
93 TP_ARGS(function, vaf))
94
95#define __hfi1_trace_fn(lvl) \
96void __printf(2, 3) __hfi1_trace_##lvl(const char *func, char *fmt, ...)\
97{ \
98 struct va_format vaf = { \
99 .fmt = fmt, \
100 }; \
101 va_list args; \
102 \
103 va_start(args, fmt); \
104 vaf.va = &args; \
105 trace_hfi1_ ##lvl(func, &vaf); \
106 va_end(args); \
107 return; \
108}
109
110/*
111 * To create a new trace level simply define it below and as a __hfi1_trace_fn
112 * in trace.c. This will create all the hooks for calling
113 * hfi1_cdbg(LVL, fmt, ...); as well as take care of all
114 * the debugfs stuff.
115 */
116__hfi1_trace_def(AFFINITY);
117__hfi1_trace_def(PKT);
118__hfi1_trace_def(PROC);
119__hfi1_trace_def(SDMA);
120__hfi1_trace_def(LINKVERB);
121__hfi1_trace_def(DEBUG);
122__hfi1_trace_def(SNOOP);
123__hfi1_trace_def(CNTR);
124__hfi1_trace_def(PIO);
125__hfi1_trace_def(DC8051);
126__hfi1_trace_def(FIRMWARE);
127__hfi1_trace_def(RCVCTRL);
128__hfi1_trace_def(TID);
129__hfi1_trace_def(MMU);
130__hfi1_trace_def(IOCTL);
131
132#define hfi1_cdbg(which, fmt, ...) \
133 __hfi1_trace_##which(__func__, fmt, ##__VA_ARGS__)
134
135#define hfi1_dbg(fmt, ...) \
136 hfi1_cdbg(DEBUG, fmt, ##__VA_ARGS__)
137
138/*
139 * Define HFI1_EARLY_DBG at compile time or here to enable early trace
140 * messages. Do not check in an enablement for this.
141 */
142
143#ifdef HFI1_EARLY_DBG
144#define hfi1_dbg_early(fmt, ...) \
145 trace_printk(fmt, ##__VA_ARGS__)
146#else
147#define hfi1_dbg_early(fmt, ...)
148#endif
149
150#endif /* __HFI1_TRACE_EXTRA_H */
151
152#undef TRACE_INCLUDE_PATH
153#undef TRACE_INCLUDE_FILE
154#define TRACE_INCLUDE_PATH .
155#define TRACE_INCLUDE_FILE trace_dbg
156#include <trace/define_trace.h>