include/trace/events/meson_atrace.h

/*
 * include/trace/events/meson_atrace.h
 *
 * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 */

/*
 * This file enables ftrace logging in a way that
 * atrace/systrace would understand
 * without any custom javascript change in chromium-trace
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM meson_atrace

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

#include <linux/tracepoint.h>


#define KERNEL_ATRACE_COUNTER 0
#define KERNEL_ATRACE_BEGIN 1
#define KERNEL_ATRACE_END 2

#define print_flags_header(flags) __print_flags(flags, "",	\
	{ (1UL << KERNEL_ATRACE_COUNTER),	"C" },		\
	{ (1UL << KERNEL_ATRACE_BEGIN),		"B" },		\
	{ (1UL << KERNEL_ATRACE_END),		"E" })


#define print_flags_delim(flags) __print_flags(flags, "",	\
	{ (1UL << KERNEL_ATRACE_COUNTER),	"|1|" },		\
	{ (1UL << KERNEL_ATRACE_BEGIN),		"|1|" },		\
	{ (1UL << KERNEL_ATRACE_END),		"" })

TRACE_EVENT(tracing_mark_write,

	TP_PROTO(const char *name, unsigned int flags, unsigned int value),

	TP_ARGS(name, flags, value),

	TP_STRUCT__entry(
		__string(name, name)
		__field(unsigned int, flags)
		__field(unsigned int, value)
	),

	TP_fast_assign(
		__assign_str(name, name);
		__entry->flags = flags;
		__entry->value = value;
	),

	TP_printk("%s%s%s|%u", print_flags_header(__entry->flags),
		print_flags_delim(__entry->flags),
		__get_str(name), __entry->value)
);
#ifdef CONFIG_AMLOGIC_DEBUG_ATRACE
#define ATRACE_COUNTER(name, value) \
	trace_tracing_mark_write(name, (1 << KERNEL_ATRACE_COUNTER), value)
#define ATRACE_BEGIN(name) \
	trace_tracing_mark_write(name, (1 << KERNEL_ATRACE_BEGIN), 0)
#define ATRACE_END(name) \
	trace_tracing_mark_write("", (1 << KERNEL_ATRACE_END), 1)
#else
#define ATRACE_COUNTER(name, value)
#define ATRACE_BEGIN(name)
#define ATRACE_END(name)
#endif

#endif /* _TRACE_MESON_BASE_H */

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