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From:   Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
To:     <linux-remoteproc@vger.kernel.org>
CC:     Bjorn Andersson <andersson@kernel.org>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        <linux-kernel@vger.kernel.org>,
        Trilok Soni <quic_tsoni@quicinc.com>,
        Satya Durga Srinivasu Prabhala <quic_satyap@quicinc.com>,
        Rajendra Nayak <quic_rjendra@quicinc.com>,
        "Elliot Berman" <quic_eberman@quicinc.com>,
        Guru Das Srinagesh <quic_gurus@quicinc.com>,
        Sibi Sankar <quic_sibis@quicinc.com>,
        Melody Olvera <quic_molvera@quicinc.com>,
        Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
Subject: [PATCH v3 1/2] remoteproc: Introduce traces for remoteproc events
Date:   Wed, 10 May 2023 11:05:03 -0700
Message-ID: <5c7c2657d12808e211942d71ad79e3846f4e70bb.1683741283.git.quic_gokukris@quicinc.com>
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Adding Traces for the following remoteproc events:
	rproc_subdev_event,
	rproc_interrupt_event,
	rproc_load_event,
	rproc_start_event,
	rproc_stop_event

Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@quicinc.com>
---
 drivers/remoteproc/Makefile           |   1 +
 drivers/remoteproc/qcom_tracepoints.c |  12 +++
 include/trace/events/rproc_qcom.h     | 128 ++++++++++++++++++++++++++
 3 files changed, 141 insertions(+)
 create mode 100644 drivers/remoteproc/qcom_tracepoints.c
 create mode 100644 include/trace/events/rproc_qcom.h

diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index 91314a9b43ce..3399fcaba39b 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -10,6 +10,7 @@ remoteproc-y				+= remoteproc_debugfs.o
 remoteproc-y				+= remoteproc_sysfs.o
 remoteproc-y				+= remoteproc_virtio.o
 remoteproc-y				+= remoteproc_elf_loader.o
+remoteproc-y				+= qcom_tracepoints.o
 obj-$(CONFIG_REMOTEPROC_CDEV)		+= remoteproc_cdev.o
 obj-$(CONFIG_IMX_REMOTEPROC)		+= imx_rproc.o
 obj-$(CONFIG_IMX_DSP_REMOTEPROC)	+= imx_dsp_rproc.o
diff --git a/drivers/remoteproc/qcom_tracepoints.c b/drivers/remoteproc/qcom_tracepoints.c
new file mode 100644
index 000000000000..1b587ef54aa7
--- /dev/null
+++ b/drivers/remoteproc/qcom_tracepoints.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/rproc_qcom.h>
+EXPORT_TRACEPOINT_SYMBOL(rproc_load_event);
+EXPORT_TRACEPOINT_SYMBOL(rproc_start_event);
+EXPORT_TRACEPOINT_SYMBOL(rproc_stop_event);
+EXPORT_TRACEPOINT_SYMBOL(rproc_interrupt_event);
+EXPORT_TRACEPOINT_SYMBOL(rproc_subdev_event);
diff --git a/include/trace/events/rproc_qcom.h b/include/trace/events/rproc_qcom.h
new file mode 100644
index 000000000000..48ad26ce18a3
--- /dev/null
+++ b/include/trace/events/rproc_qcom.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM rproc_qcom
+
+#if !defined(_TRACE_RPROC_QCOM_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_RPROC_QCOM_H
+#include <linux/tracepoint.h>
+#include <linux/remoteproc.h>
+
+/*
+ * Tracepoints for remoteproc and subdevice events
+ */
+TRACE_EVENT(rproc_load_event,
+
+	TP_PROTO(struct rproc *rproc, int ret),
+
+	TP_ARGS(rproc, ret),
+
+	TP_STRUCT__entry(
+		__string(name, rproc->name)
+		__string(firmware, rproc->firmware)
+		__field(int, ret)
+	),
+
+	TP_fast_assign(
+		__assign_str(name, rproc->name);
+		__assign_str(firmware, rproc->firmware);
+		__entry->ret = ret;
+	),
+
+	TP_printk("%s loading firmware %s returned %d",
+			__get_str(name), __get_str(firmware),
+			__entry->ret)
+);
+
+TRACE_EVENT(rproc_start_event,
+
+	TP_PROTO(struct rproc *rproc, int ret),
+
+	TP_ARGS(rproc, ret),
+
+	TP_STRUCT__entry(
+		__string(name, rproc->name)
+		__field(int, ret)
+	),
+
+	TP_fast_assign(
+		__assign_str(name, rproc->name);
+		__entry->ret = ret;
+	),
+
+	TP_printk("%s %d", __get_str(name), __entry->ret)
+);
+
+TRACE_EVENT(rproc_stop_event,
+
+	TP_PROTO(struct rproc *rproc, char *crash_msg),
+
+	TP_ARGS(rproc, crash_msg),
+
+	TP_STRUCT__entry(
+		__string(name, rproc->name)
+		__string(crash_msg, crash_msg)
+	),
+
+	TP_fast_assign(
+		__assign_str(name, rproc->name);
+		__assign_str(crash_msg, crash_msg)
+	),
+
+	TP_printk("%s %s", __get_str(name), __get_str(crash_msg))
+);
+
+TRACE_EVENT(rproc_interrupt_event,
+
+	TP_PROTO(struct rproc *rproc, const char *event,
+			 const char *msg),
+
+	TP_ARGS(rproc, event, msg),
+
+	TP_STRUCT__entry(
+		__string(name, rproc->name)
+		__string(event, event)
+		__string(msg, msg)
+	),
+
+	TP_fast_assign(
+		__assign_str(name, rproc->name);
+		__assign_str(event, event);
+		__assign_str(msg, msg);
+	),
+
+	TP_printk("%s %s returned %s", __get_str(name),
+			 __get_str(event), __get_str(msg))
+);
+
+TRACE_EVENT(rproc_subdev_event,
+
+	TP_PROTO(const char *rproc, const char *subdev,
+			const char *event, int ret),
+
+	TP_ARGS(rproc, subdev, event, ret),
+
+	TP_STRUCT__entry(
+		__string(rproc, rproc)
+		__string(subdev, subdev)
+		__string(event, event)
+		__field(int, ret)
+	),
+
+	TP_fast_assign(
+		__assign_str(rproc, rproc);
+		__assign_str(subdev, subdev);
+		__assign_str(event, event);
+		__entry->ret = ret;
+	),
+
+	TP_printk("%s %s %s %d", __get_str(rproc), __get_str(subdev),
+			__get_str(event), __entry->ret)
+);
+#endif /* _TRACE_RPROC_QCOM_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
2.40.1