mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 18:38:46 +07:00
975b820b68
In some cases the clock parent would be set NULL when doing re-parent,
it will cause a NULL pointer accessing if clk_set trace event is
enabled.
This patch sets the parent as "none" if the input parameter is NULL.
Fixes: dfc202ead3 (clk: Add tracepoints for hardware operations)
Signed-off-by: Cai Li <cai.li@spreadtrum.com>
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
199 lines
3.7 KiB
C
199 lines
3.7 KiB
C
/*
|
|
* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* 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.
|
|
*/
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM clk
|
|
|
|
#if !defined(_TRACE_CLK_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_CLK_H
|
|
|
|
#include <linux/tracepoint.h>
|
|
|
|
struct clk_core;
|
|
|
|
DECLARE_EVENT_CLASS(clk,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core),
|
|
|
|
TP_STRUCT__entry(
|
|
__string( name, core->name )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__assign_str(name, core->name);
|
|
),
|
|
|
|
TP_printk("%s", __get_str(name))
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_enable,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_enable_complete,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_disable,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_disable_complete,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_prepare,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_prepare_complete,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_unprepare,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DEFINE_EVENT(clk, clk_unprepare_complete,
|
|
|
|
TP_PROTO(struct clk_core *core),
|
|
|
|
TP_ARGS(core)
|
|
);
|
|
|
|
DECLARE_EVENT_CLASS(clk_rate,
|
|
|
|
TP_PROTO(struct clk_core *core, unsigned long rate),
|
|
|
|
TP_ARGS(core, rate),
|
|
|
|
TP_STRUCT__entry(
|
|
__string( name, core->name )
|
|
__field(unsigned long, rate )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__assign_str(name, core->name);
|
|
__entry->rate = rate;
|
|
),
|
|
|
|
TP_printk("%s %lu", __get_str(name), (unsigned long)__entry->rate)
|
|
);
|
|
|
|
DEFINE_EVENT(clk_rate, clk_set_rate,
|
|
|
|
TP_PROTO(struct clk_core *core, unsigned long rate),
|
|
|
|
TP_ARGS(core, rate)
|
|
);
|
|
|
|
DEFINE_EVENT(clk_rate, clk_set_rate_complete,
|
|
|
|
TP_PROTO(struct clk_core *core, unsigned long rate),
|
|
|
|
TP_ARGS(core, rate)
|
|
);
|
|
|
|
DECLARE_EVENT_CLASS(clk_parent,
|
|
|
|
TP_PROTO(struct clk_core *core, struct clk_core *parent),
|
|
|
|
TP_ARGS(core, parent),
|
|
|
|
TP_STRUCT__entry(
|
|
__string( name, core->name )
|
|
__string( pname, parent ? parent->name : "none" )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__assign_str(name, core->name);
|
|
__assign_str(pname, parent ? parent->name : "none");
|
|
),
|
|
|
|
TP_printk("%s %s", __get_str(name), __get_str(pname))
|
|
);
|
|
|
|
DEFINE_EVENT(clk_parent, clk_set_parent,
|
|
|
|
TP_PROTO(struct clk_core *core, struct clk_core *parent),
|
|
|
|
TP_ARGS(core, parent)
|
|
);
|
|
|
|
DEFINE_EVENT(clk_parent, clk_set_parent_complete,
|
|
|
|
TP_PROTO(struct clk_core *core, struct clk_core *parent),
|
|
|
|
TP_ARGS(core, parent)
|
|
);
|
|
|
|
DECLARE_EVENT_CLASS(clk_phase,
|
|
|
|
TP_PROTO(struct clk_core *core, int phase),
|
|
|
|
TP_ARGS(core, phase),
|
|
|
|
TP_STRUCT__entry(
|
|
__string( name, core->name )
|
|
__field( int, phase )
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__assign_str(name, core->name);
|
|
__entry->phase = phase;
|
|
),
|
|
|
|
TP_printk("%s %d", __get_str(name), (int)__entry->phase)
|
|
);
|
|
|
|
DEFINE_EVENT(clk_phase, clk_set_phase,
|
|
|
|
TP_PROTO(struct clk_core *core, int phase),
|
|
|
|
TP_ARGS(core, phase)
|
|
);
|
|
|
|
DEFINE_EVENT(clk_phase, clk_set_phase_complete,
|
|
|
|
TP_PROTO(struct clk_core *core, int phase),
|
|
|
|
TP_ARGS(core, phase)
|
|
);
|
|
|
|
#endif /* _TRACE_CLK_H */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|