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dfc202ead3
It's useful to have tracepoints around operations that change the
hardware state so that we can debug clock hardware performance
and operations. Four basic types of events are supported: on/off
events for enable, disable, prepare, unprepare that only record
an event and a clock name, rate changing events for
clk_set_{min_,max_}rate{_range}(), phase changing events for
clk_set_phase() and parent changing events for clk_set_parent().
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
199 lines
3.7 KiB
C
199 lines
3.7 KiB
C
/*
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* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM clk
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#if !defined(_TRACE_CLK_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_CLK_H
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#include <linux/tracepoint.h>
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struct clk_core;
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DECLARE_EVENT_CLASS(clk,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core),
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TP_STRUCT__entry(
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__string( name, core->name )
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),
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TP_fast_assign(
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__assign_str(name, core->name);
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),
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TP_printk("%s", __get_str(name))
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);
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DEFINE_EVENT(clk, clk_enable,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DEFINE_EVENT(clk, clk_enable_complete,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DEFINE_EVENT(clk, clk_disable,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DEFINE_EVENT(clk, clk_disable_complete,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DEFINE_EVENT(clk, clk_prepare,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DEFINE_EVENT(clk, clk_prepare_complete,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DEFINE_EVENT(clk, clk_unprepare,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DEFINE_EVENT(clk, clk_unprepare_complete,
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TP_PROTO(struct clk_core *core),
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TP_ARGS(core)
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);
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DECLARE_EVENT_CLASS(clk_rate,
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TP_PROTO(struct clk_core *core, unsigned long rate),
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TP_ARGS(core, rate),
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TP_STRUCT__entry(
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__string( name, core->name )
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__field(unsigned long, rate )
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),
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TP_fast_assign(
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__assign_str(name, core->name);
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__entry->rate = rate;
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),
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TP_printk("%s %lu", __get_str(name), (unsigned long)__entry->rate)
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);
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DEFINE_EVENT(clk_rate, clk_set_rate,
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TP_PROTO(struct clk_core *core, unsigned long rate),
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TP_ARGS(core, rate)
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);
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DEFINE_EVENT(clk_rate, clk_set_rate_complete,
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TP_PROTO(struct clk_core *core, unsigned long rate),
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TP_ARGS(core, rate)
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);
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DECLARE_EVENT_CLASS(clk_parent,
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TP_PROTO(struct clk_core *core, struct clk_core *parent),
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TP_ARGS(core, parent),
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TP_STRUCT__entry(
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__string( name, core->name )
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__string( pname, parent->name )
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),
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TP_fast_assign(
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__assign_str(name, core->name);
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__assign_str(pname, parent->name);
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),
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TP_printk("%s %s", __get_str(name), __get_str(pname))
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);
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DEFINE_EVENT(clk_parent, clk_set_parent,
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TP_PROTO(struct clk_core *core, struct clk_core *parent),
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TP_ARGS(core, parent)
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);
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DEFINE_EVENT(clk_parent, clk_set_parent_complete,
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TP_PROTO(struct clk_core *core, struct clk_core *parent),
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TP_ARGS(core, parent)
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);
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DECLARE_EVENT_CLASS(clk_phase,
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TP_PROTO(struct clk_core *core, int phase),
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TP_ARGS(core, phase),
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TP_STRUCT__entry(
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__string( name, core->name )
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__field( int, phase )
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),
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TP_fast_assign(
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__assign_str(name, core->name);
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__entry->phase = phase;
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),
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TP_printk("%s %d", __get_str(name), (int)__entry->phase)
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);
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DEFINE_EVENT(clk_phase, clk_set_phase,
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TP_PROTO(struct clk_core *core, int phase),
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TP_ARGS(core, phase)
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);
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DEFINE_EVENT(clk_phase, clk_set_phase_complete,
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TP_PROTO(struct clk_core *core, int phase),
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TP_ARGS(core, phase)
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);
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#endif /* _TRACE_CLK_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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