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Mon, 12 Jun 2023 22:03:47 GMT Received: from hu-gokukris-sd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Mon, 12 Jun 2023 15:03:46 -0700 From: Gokul krishna Krishnakumar To: , , CC: Andy Gross , Bjorn Andersson , Konrad Dybcio , , Trilok Soni , Satya Durga Srinivasu Prabhala , Rajendra Nayak , "Elliot Berman" , Guru Das Srinagesh , Sibi Sankar , Melody Olvera , Gokul krishna Krishnakumar Subject: [PATCH v5 1/2] remoteproc: Introduce traces for remoteproc events Date: Mon, 12 Jun 2023 15:03:25 -0700 Message-ID: X-Mailer: git-send-email 2.40.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: PNTvKuSHknbAwIMCNfed_eg8Ihrdszl8 X-Proofpoint-ORIG-GUID: PNTvKuSHknbAwIMCNfed_eg8Ihrdszl8 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.176.26 definitions=2023-06-12_16,2023-06-12_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 spamscore=0 suspectscore=0 mlxlogscore=999 mlxscore=0 adultscore=0 malwarescore=0 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2305260000 definitions=main-2306120189 Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org 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 --- drivers/remoteproc/Kconfig | 9 ++ drivers/remoteproc/Makefile | 1 + drivers/remoteproc/remoteproc_tracepoints.c | 14 ++ include/trace/events/remoteproc_tracepoints.h | 152 ++++++++++++++++++ 4 files changed, 176 insertions(+) create mode 100644 drivers/remoteproc/remoteproc_tracepoints.c create mode 100644 include/trace/events/remoteproc_tracepoints.h diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index a850e9f486dd..4bc4e42a8a36 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -365,6 +365,15 @@ config XLNX_R5_REMOTEPROC It's safe to say N if not interested in using RPU r5f cores. +config REMOTEPROC_TRACEPOINTS + bool "Support for Remote Processor subsystem traces" + help + Say y to add traces to remoteproc events of interest such as + the start/stop/crash events in a remote-processor and also + sub-device stop/start events and there errors. These traces + can be useful while debugging errors with subsystem restart + and draw an estimate on how long each event takes to run. + endif # REMOTEPROC endmenu diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile index 91314a9b43ce..7045cde5ca76 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 +obj-$(CONFIG_REMOTEPROC_TRACEPOINTS) += remoteproc_tracepoints.o obj-$(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/remoteproc_tracepoints.c b/drivers/remoteproc/remoteproc_tracepoints.c new file mode 100644 index 000000000000..cafebda02f8b --- /dev/null +++ b/drivers/remoteproc/remoteproc_tracepoints.c @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#define CREATE_TRACE_POINTS +#include + +EXPORT_TRACEPOINT_SYMBOL_GPL(rproc_load_segment_event); +EXPORT_TRACEPOINT_SYMBOL_GPL(rproc_attach_event); +EXPORT_TRACEPOINT_SYMBOL_GPL(rproc_start_event); +EXPORT_TRACEPOINT_SYMBOL_GPL(rproc_stop_event); +EXPORT_TRACEPOINT_SYMBOL_GPL(rproc_interrupt_event); +EXPORT_TRACEPOINT_SYMBOL_GPL(rproc_subdev_event); diff --git a/include/trace/events/remoteproc_tracepoints.h b/include/trace/events/remoteproc_tracepoints.h new file mode 100644 index 000000000000..4d12d463cb39 --- /dev/null +++ b/include/trace/events/remoteproc_tracepoints.h @@ -0,0 +1,152 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM remoteproc_tracepoints + +#if !defined(_TRACE_REMOTEPROC_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_REMOTEPROC_H +#include +#include + +/* + * Tracepoints for remoteproc and subdevice events + */ +TRACE_EVENT(rproc_load_segment_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_attach_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 attaching returned %d", + __get_str(name), + __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, const 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("rproc:%s subdev:%s event:%s ret:%d", + __get_str(rproc), __get_str(subdev), + __get_str(event), __entry->ret) +); +#endif /* _TRACE_REMOTEPROC_H */ + +/* This part must be outside protection */ +#include