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> 157