mirror of https://gitee.com/openkylin/linux.git
157 lines
4.9 KiB
C
157 lines
4.9 KiB
C
/*
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* Copyright(c) 2015 - 2018 Intel Corporation.
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* BSD LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#if !defined(__HFI1_TRACE_EXTRA_H) || defined(TRACE_HEADER_MULTI_READ)
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#define __HFI1_TRACE_EXTRA_H
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#include <linux/tracepoint.h>
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#include <linux/trace_seq.h>
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#include "hfi.h"
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/*
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* Note:
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* This produces a REALLY ugly trace in the console output when the string is
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* too long.
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM hfi1_dbg
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#define MAX_MSG_LEN 512
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DECLARE_EVENT_CLASS(hfi1_trace_template,
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TP_PROTO(const char *function, struct va_format *vaf),
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TP_ARGS(function, vaf),
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TP_STRUCT__entry(__string(function, function)
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__dynamic_array(char, msg, MAX_MSG_LEN)
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),
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TP_fast_assign(__assign_str(function, function);
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WARN_ON_ONCE(vsnprintf
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(__get_dynamic_array(msg),
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MAX_MSG_LEN, vaf->fmt,
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*vaf->va) >=
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MAX_MSG_LEN);
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),
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TP_printk("(%s) %s",
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__get_str(function),
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__get_str(msg))
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);
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/*
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* It may be nice to macroize the __hfi1_trace but the va_* stuff requires an
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* actual function to work and can not be in a macro.
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*/
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#define __hfi1_trace_def(lvl) \
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void __printf(2, 3) __hfi1_trace_##lvl(const char *funct, char *fmt, ...); \
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\
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DEFINE_EVENT(hfi1_trace_template, hfi1_ ##lvl, \
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TP_PROTO(const char *function, struct va_format *vaf), \
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TP_ARGS(function, vaf))
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#define __hfi1_trace_fn(lvl) \
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void __printf(2, 3) __hfi1_trace_##lvl(const char *func, char *fmt, ...)\
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{ \
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struct va_format vaf = { \
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.fmt = fmt, \
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}; \
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va_list args; \
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\
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va_start(args, fmt); \
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vaf.va = &args; \
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trace_hfi1_ ##lvl(func, &vaf); \
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va_end(args); \
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return; \
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}
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/*
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* To create a new trace level simply define it below and as a __hfi1_trace_fn
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* in trace.c. This will create all the hooks for calling
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* hfi1_cdbg(LVL, fmt, ...); as well as take care of all
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* the debugfs stuff.
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*/
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__hfi1_trace_def(AFFINITY);
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__hfi1_trace_def(PKT);
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__hfi1_trace_def(PROC);
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__hfi1_trace_def(SDMA);
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__hfi1_trace_def(LINKVERB);
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__hfi1_trace_def(DEBUG);
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__hfi1_trace_def(SNOOP);
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__hfi1_trace_def(CNTR);
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__hfi1_trace_def(PIO);
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__hfi1_trace_def(DC8051);
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__hfi1_trace_def(FIRMWARE);
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__hfi1_trace_def(RCVCTRL);
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__hfi1_trace_def(TID);
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__hfi1_trace_def(MMU);
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__hfi1_trace_def(IOCTL);
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#define hfi1_cdbg(which, fmt, ...) \
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__hfi1_trace_##which(__func__, fmt, ##__VA_ARGS__)
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#define hfi1_dbg(fmt, ...) \
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hfi1_cdbg(DEBUG, fmt, ##__VA_ARGS__)
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/*
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* Define HFI1_EARLY_DBG at compile time or here to enable early trace
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* messages. Do not check in an enablement for this.
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*/
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#ifdef HFI1_EARLY_DBG
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#define hfi1_dbg_early(fmt, ...) \
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trace_printk(fmt, ##__VA_ARGS__)
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#else
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#define hfi1_dbg_early(fmt, ...)
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#endif
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#endif /* __HFI1_TRACE_EXTRA_H */
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#undef TRACE_INCLUDE_PATH
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_PATH .
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#define TRACE_INCLUDE_FILE trace_dbg
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#include <trace/define_trace.h>
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