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-rw-r--r--include/os/posix/log.c95
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1/*
2 * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22
23#include <nvgpu/log.h>
24#include <nvgpu/types.h>
25
26#include <nvgpu/gk20a.h>
27
28/*
29 * Define a length for log buffers. This is the buffer that the 'fmt, ...' part
30 * of __nvgpu_do_log_print() prints into.
31 */
32#define LOG_BUFFER_LENGTH 160
33
34/*
35 * Keep this roughly the same as the kernel log format.
36 */
37#define LOG_FMT "nvgpu: %s %33s:%-4d [%-4s] %s\n"
38
39u64 nvgpu_dbg_mask = NVGPU_DEFAULT_DBG_MASK;
40
41static const char *log_types[] = {
42 "ERR",
43 "WRN",
44 "DBG",
45 "INFO",
46};
47
48static inline const char *nvgpu_log_name(struct gk20a *g)
49{
50 return "gpu.USS";
51}
52
53static void __nvgpu_really_print_log(const char *gpu_name,
54 const char *func_name, int line,
55 enum nvgpu_log_type type, const char *log)
56{
57 const char *name = gpu_name ? gpu_name : "";
58 const char *log_type = log_types[type];
59
60 printf(LOG_FMT, name, func_name, line, log_type, log);
61}
62
63__attribute__((format (printf, 5, 6)))
64void __nvgpu_log_msg(struct gk20a *g, const char *func_name, int line,
65 enum nvgpu_log_type type, const char *fmt, ...)
66{
67 char log[LOG_BUFFER_LENGTH];
68 va_list args;
69
70 va_start(args, fmt);
71 vsnprintf(log, LOG_BUFFER_LENGTH, fmt, args);
72 va_end(args);
73
74 __nvgpu_really_print_log(nvgpu_log_name(g),
75 func_name, line, type, log);
76}
77
78__attribute__((format (printf, 5, 6)))
79void __nvgpu_log_dbg(struct gk20a *g, u64 log_mask,
80 const char *func_name, int line,
81 const char *fmt, ...)
82{
83 char log[LOG_BUFFER_LENGTH];
84 va_list args;
85
86 if ((log_mask & g->log_mask) == 0)
87 return;
88
89 va_start(args, fmt);
90 vsnprintf(log, LOG_BUFFER_LENGTH, fmt, args);
91 va_end(args);
92
93 __nvgpu_really_print_log(nvgpu_log_name(g),
94 func_name, line, NVGPU_DEBUG, log);
95}