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ASoC: SOF: Intel: add HDA interrupt source tracing

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The Intel HDaudio controller relies on a single interrupt line which
wire-ORs multiple interrupt sources, such as stream, IPC, SoundWire and
wakes. This patch adds the ability to trace each event occurrence.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Noah Klayman <noah.klayman@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220919122108.43764-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Noah Klayman 2022-09-19 14:21:03 +02:00 committed by Mark Brown
parent fa6e73d691
commit baedc6300b
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
2 changed files with 49 additions and 4 deletions
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34
include/trace/events/sof_intel.h Normal file
View file

@ -0,0 +1,34 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright(c) 2022 Intel Corporation. All rights reserved.
*
* Author: Noah Klayman <noah.klayman@intel.com>
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM sof_intel
#if !defined(_TRACE_SOF_INTEL_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SOF_INTEL_H
#include <linux/tracepoint.h>
#include "../../../sound/soc/sof/sof-audio.h"
TRACE_EVENT(sof_intel_hda_irq,
TP_PROTO(struct snd_sof_dev *sdev, char *source),
TP_ARGS(sdev, source),
TP_STRUCT__entry(
__string(device_name, dev_name(sdev->dev))
__string(source, source)
),
TP_fast_assign(
__assign_str(device_name, dev_name(sdev->dev));
__assign_str(source, source);
),
TP_printk("device_name=%s source=%s",
__get_str(device_name), __get_str(source))
);
#endif /* _TRACE_SOF_INTEL_H */
/* This part must be outside protection */
#include <trace/define_trace.h>

19
sound/soc/sof/intel/hda.c
View file

@ -31,6 +31,9 @@
#include "../ops.h"
#include "hda.h"
#define CREATE_TRACE_POINTS
#include <trace/events/sof_intel.h>
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
#include <sound/soc-acpi-intel-match.h>
#endif
@ -938,17 +941,25 @@ static irqreturn_t hda_dsp_interrupt_thread(int irq, void *context)
struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
/* deal with streams and controller first */
if (hda_dsp_check_stream_irq(sdev))
if (hda_dsp_check_stream_irq(sdev)) {
trace_sof_intel_hda_irq(sdev, "stream");
hda_dsp_stream_threaded_handler(irq, sdev);
}
if (hda_check_ipc_irq(sdev))
if (hda_check_ipc_irq(sdev)) {
trace_sof_intel_hda_irq(sdev, "ipc");
sof_ops(sdev)->irq_thread(irq, sdev);
}
if (hda_dsp_check_sdw_irq(sdev))
if (hda_dsp_check_sdw_irq(sdev)) {
trace_sof_intel_hda_irq(sdev, "sdw");
hda_dsp_sdw_thread(irq, hdev->sdw);
}
if (hda_sdw_check_wakeen_irq(sdev))
if (hda_sdw_check_wakeen_irq(sdev)) {
trace_sof_intel_hda_irq(sdev, "wakeen");
hda_sdw_process_wakeen(sdev);
}
hda_check_for_state_change(sdev);