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Commit e18cd565 authored by Jonathan Wicks's avatar Jonathan Wicks
Browse files

msm: kgsl: Add a trace event for the GPU clock 



If requested, trace the GPU time to ensure
a useful mapping regardless of the chosen
trace clock.

Change-Id: I76a893975de9a278c8178f935991191354f29e2f
Signed-off-by: default avatarJonathan Wicks <jwicks@codeaurora.org>
parent 03f28c16

drivers/gpu/msm/adreno_ringbuffer.c

+6 −1
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include "adreno_iommu.h"

#include "adreno_pm4types.h"

#include "adreno_ringbuffer.h"

#include "adreno_trace.h"



#include "a3xx_reg.h"

#include "adreno_a5xx.h"
@@ -58,6 +59,7 @@ static void _cff_write_ringbuffer(struct adreno_ringbuffer *rb) 
}



static void adreno_get_submit_time(struct adreno_device *adreno_dev,

		struct adreno_ringbuffer *rb,

		struct adreno_submit_time *time)

{

	unsigned long flags;
@@ -87,6 +89,9 @@ static void adreno_get_submit_time(struct adreno_device *adreno_dev, 
	} else

		time->ticks = 0;



	/* Trace the GPU time to create a mapping to ftrace time */

	trace_adreno_cmdbatch_sync(rb->drawctxt_active, time->ticks);



	/* Get the kernel clock for time since boot */

	time->ktime = local_clock();
@@ -128,7 +133,7 @@ void adreno_ringbuffer_submit(struct adreno_ringbuffer *rb, 
	_cff_write_ringbuffer(rb);



	if (time != NULL)

		adreno_get_submit_time(adreno_dev, time);

		adreno_get_submit_time(adreno_dev, rb, time);



	adreno_ringbuffer_wptr(adreno_dev, rb);

}

drivers/gpu/msm/adreno_trace.h

+24 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.

/* Copyright (c) 2013-2017, 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
@@ -148,6 +148,29 @@ TRACE_EVENT(adreno_cmdbatch_retired, 
	)

);



TRACE_EVENT(adreno_cmdbatch_sync,

	TP_PROTO(struct adreno_context *drawctxt,

		uint64_t ticks),

	TP_ARGS(drawctxt, ticks),

	TP_STRUCT__entry(

		__field(unsigned int, id)

		__field(unsigned int, timestamp)

		__field(uint64_t, ticks)

		__field(int, prio)

	),

	TP_fast_assign(

		__entry->id = drawctxt->base.id;

		__entry->timestamp = drawctxt->timestamp;

		__entry->ticks = ticks;

		__entry->prio = drawctxt->base.priority;

	),

	TP_printk(

		"ctx=%u ctx_prio=%d ts=%u ticks=%lld",

			__entry->id, __entry->prio, __entry->timestamp,

			__entry->ticks

	)

);



TRACE_EVENT(adreno_cmdbatch_fault,

	TP_PROTO(struct kgsl_drawobj_cmd *cmdobj, unsigned int fault),

	TP_ARGS(cmdobj, fault),