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Commit 432cb528 authored by Ram Chandrasekar's avatar Ram Chandrasekar Committed by Kyle Yan
Browse files

drivers: thermal: Add ftrace events for LMH DCVSh mitigation 



LMH DCVSh driver receives interrupt from hardware whenever there is a
new mitigation frequency decision is made in hardware.

Add ftrace event to print the hardware mitigation frequency value from
driver.

Change-Id: Ib357ee3c3a461613bfd1268ec8f98973c2982c10
Signed-off-by: default avatarRam Chandrasekar <rkumbako@codeaurora.org>
parent 8f2bc230

drivers/thermal/msm_lmh_dcvs.c

+5 −0
Original line number Diff line number Diff line
@@ -32,6 +32,10 @@ 


#include "thermal_core.h"



#define CREATE_TRACE_POINTS

#define LMH_DCVS_TRACE

#include <trace/trace_thermal.h>



#define MSM_LIMITS_DCVSH		0x10

#define MSM_LIMITS_NODE_DCVS		0x44435653
@@ -97,6 +101,7 @@ static uint32_t msm_lmh_mitigation_notify(struct msm_lmh_dcvs_hw *hw) 
	val = readl_relaxed(hw->osm_hw_reg);

	dcvsh_get_frequency(val, max_limit);

	sched_update_cpu_freq_min_max(&hw->core_map, 0, max_limit);

	trace_lmh_dcvs_freq(cpumask_first(&hw->core_map), max_limit);



	return max_limit;

}

include/trace/trace_thermal.h

+32 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.

 * Copyright (c) 2014-2016, The Linux Foundation. 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 version 2 and
@@ -112,6 +112,37 @@ TRACE_EVENT(lmh_debug_data, 
	)

);



#elif defined(LMH_DCVS_TRACE)

DECLARE_EVENT_CLASS(msm_lmh_dcvs_print,



	TP_PROTO(int cpu, long max_freq),



	TP_ARGS(

		cpu, max_freq

	),



	TP_STRUCT__entry(

		__field(int, cpu)

		__field(long, max_freq)

	),



	TP_fast_assign(

		__entry->cpu = cpu;

		__entry->max_freq = max_freq;

	),



	TP_printk(

		"cpu:%d max frequency:%ld",

		__entry->cpu, __entry->max_freq

	)

);



DEFINE_EVENT(msm_lmh_dcvs_print, lmh_dcvs_freq,



	TP_PROTO(int cpu, long max_freq),



	TP_ARGS(cpu, max_freq)

);



#elif defined(TRACE_MSM_THERMAL)