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Commit 3e8b5fe2 authored by Shashank Babu Chinta Venkata's avatar Shashank Babu Chinta Venkata
Browse files

msm: clk: qcom: add traces to DSI pll 



Add traces to vco prepare to log locking time
for 10nm DSI pll.

Change-Id: I45e1d147789db05ac251128554ca4dde83c1a793
Signed-off-by: default avatarShashank Babu Chinta Venkata <sbchin@codeaurora.org>
parent b3227c4f

drivers/clk/qcom/mdss/mdss-dsi-pll-10nm.c

+9 −2
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2018, 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
@@ -20,6 +20,8 @@ 
#include "mdss-dsi-pll.h"

#include "mdss-pll.h"

#include <dt-bindings/clock/mdss-10nm-pll-clk.h>

#define CREATE_TRACE_POINTS

#include "mdss_pll_trace.h"



#define VCO_DELAY_USEC 1
@@ -790,8 +792,13 @@ static int vco_10nm_prepare(struct clk_hw *hw) 
		MDSS_PLL_REG_W(pll->pll_base, PLL_PLL_OUTDIV_RATE,

					pll->cached_outdiv);

	}



	MDSS_PLL_ATRACE_BEGIN("pll_lock");

	trace_mdss_pll_lock_start((u64)pll->vco_cached_rate,

			pll->vco_current_rate,

			pll->cached_cfg0, pll->cached_cfg1,

			pll->cached_outdiv, pll->resource_ref_cnt);

	rc = dsi_pll_enable(vco);

	MDSS_PLL_ATRACE_END("pll_lock");

	if (rc) {

		mdss_pll_resource_enable(pll, false);

		pr_err("pll(%d) enable failed, rc=%d\n", pll->index, rc);

drivers/clk/qcom/mdss/mdss_pll_trace.h

0 → 100644
+116 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2018, 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

 * only version 2 as published by the Free Software Foundation.

 *

 * 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.

 */



#if !defined(_MDSS_PLL_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)

#define _MDSS_PLL_TRACE_H_



#include <linux/stringify.h>

#include <linux/types.h>

#include <linux/tracepoint.h>



#undef TRACE_SYSTEM

#define TRACE_SYSTEM mdss_pll

#undef TRACE_INCLUDE_FILE

#define TRACE_INCLUDE_FILE mdss_pll_trace





TRACE_EVENT(mdss_pll_lock_start,

	TP_PROTO(

			u64 vco_cached_rate,

			s64 vco_current_rate,

			u32 cached_cfg0,

			u32 cached_cfg1,

			u32 cached_outdiv,

			u32 resource_ref_cnt),

	TP_ARGS(

			vco_cached_rate,

			vco_current_rate,

			cached_cfg0,

			cached_cfg1,

			cached_outdiv,

			resource_ref_cnt),

	TP_STRUCT__entry(

			__field(u64, vco_cached_rate)

			__field(s64, vco_current_rate)

			__field(u32, cached_cfg0)

			__field(u32, cached_cfg1)

			__field(u32, cached_outdiv)

			__field(u32, resource_ref_cnt)



	),

	TP_fast_assign(

			__entry->vco_cached_rate = vco_cached_rate;

			__entry->vco_current_rate = vco_current_rate;

			__entry->cached_cfg0 = cached_cfg0;

			__entry->cached_cfg1 = cached_cfg1;

			__entry->cached_outdiv = cached_outdiv;

			__entry->resource_ref_cnt = resource_ref_cnt;

	),

	 TP_printk(

		"vco_cached_rate=%llu vco_current_rate=%lld cached_cfg0=%d cached_cfg1=%d cached_outdiv=%d resource_ref_cnt=%d",

			__entry->vco_cached_rate,

			__entry->vco_current_rate,

			__entry->cached_cfg0,

			__entry->cached_cfg1,

			__entry->cached_outdiv,

			__entry->resource_ref_cnt)

);



TRACE_EVENT(pll_tracing_mark_write,

	TP_PROTO(int pid, const char *name, bool trace_begin),

	TP_ARGS(pid, name, trace_begin),

	TP_STRUCT__entry(

			__field(int, pid)

			__string(trace_name, name)

			__field(bool, trace_begin)

	),

	TP_fast_assign(

			__entry->pid = pid;

			__assign_str(trace_name, name);

			__entry->trace_begin = trace_begin;

	),

	TP_printk("%s|%d|%s", __entry->trace_begin ? "B" : "E",

		__entry->pid, __get_str(trace_name))

)



TRACE_EVENT(mdss_pll_trace_counter,

	TP_PROTO(int pid, char *name, int value),

	TP_ARGS(pid, name, value),

	TP_STRUCT__entry(

			__field(int, pid)

			__string(counter_name, name)

			__field(int, value)

	),

	TP_fast_assign(

			__entry->pid = current->tgid;

			__assign_str(counter_name, name);

			__entry->value = value;

	),

	TP_printk("%d|%s|%d", __entry->pid,

			__get_str(counter_name), __entry->value)

)



#define MDSS_PLL_ATRACE_END(name) trace_pll_tracing_mark_write(current->tgid,\

		name, 0)

#define MDSS_PLL_ATRACE_BEGIN(name) trace_pll_tracing_mark_write(current->tgid,\

		name, 1)

#define MDSS_PLL_ATRACE_FUNC() MDSS_PLL_ATRACE_BEGIN(__func__)

#define MDSS_PLL_ATRACE_INT(name, value) \

	trace_mdss_pll_trace_counter(current->tgid, name, value)





#endif /* _MDSS_PLL_TRACE_H_ */



/* This part must be outside protection */

#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#include <trace/define_trace.h>