diff mbox series

selftest: remoteproc: Add basic test for start/stop sequence

Message ID 20240920175842.388781-1-quic_wasimn@quicinc.com (mailing list archive)
State New
Headers show
Series selftest: remoteproc: Add basic test for start/stop sequence | expand

Commit Message

Wasim Nazir Sept. 20, 2024, 5:58 p.m. UTC
Add new basic remoteproc test that check start/stop
sequence of all subsystems available.

--
2.46.1

Comments

Bjorn Andersson Sept. 25, 2024, 12:53 a.m. UTC | #1
On Fri, Sep 20, 2024 at 11:28:42PM GMT, Wasim Nazir wrote:
> Add new basic remoteproc test that check start/stop
> sequence of all subsystems available.
> 

Please describe your test scenario more than just "check start/stop
sequence".

Signed-off-by...

> diff --git a/MAINTAINERS b/MAINTAINERS
> index e062b5328341..aff76edc4242 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -18225,6 +18225,7 @@ F:	Documentation/staging/remoteproc.rst
>  F:	drivers/remoteproc/
>  F:	include/linux/remoteproc.h
>  F:	include/linux/remoteproc/
> +F:	tools/testing/selftests/remoteproc/
> 
>  REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM
>  M:	Bjorn Andersson <andersson@kernel.org>
> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
> index 697f13bbbc32..31db0311efdc 100644
> --- a/tools/testing/selftests/Makefile
> +++ b/tools/testing/selftests/Makefile
> @@ -68,6 +68,7 @@ TARGETS += proc
>  TARGETS += pstore
>  TARGETS += ptrace
>  TARGETS += openat2
> +TARGETS += remoteproc
>  TARGETS += resctrl
>  TARGETS += riscv
>  TARGETS += rlimits
> diff --git a/tools/testing/selftests/remoteproc/Makefile b/tools/testing/selftests/remoteproc/Makefile
> new file mode 100644
> index 000000000000..a84b3934fd36
> --- /dev/null
> +++ b/tools/testing/selftests/remoteproc/Makefile
> @@ -0,0 +1,4 @@
> +# SPDX-License-Identifier: GPL-2.0
> +TEST_PROGS := remoteproc_test.sh
> +
> +include ../lib.mk
> diff --git a/tools/testing/selftests/remoteproc/config b/tools/testing/selftests/remoteproc/config
> new file mode 100644
> index 000000000000..a5c237d2f3b4
> --- /dev/null
> +++ b/tools/testing/selftests/remoteproc/config
> @@ -0,0 +1 @@
> +CONFIG_REMOTEPROC=y
> diff --git a/tools/testing/selftests/remoteproc/remoteproc_test.sh b/tools/testing/selftests/remoteproc/remoteproc_test.sh
> new file mode 100644
> index 000000000000..88c8f15d8406
> --- /dev/null
> +++ b/tools/testing/selftests/remoteproc/remoteproc_test.sh
> @@ -0,0 +1,165 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
> +#
> +
> +DIR="$(dirname $(readlink -f "$0"))"
> +
> +KTAP_HELPERS="${DIR}/../kselftest/ktap_helpers.sh"
> +if [ -e "$KTAP_HELPERS" ]; then
> +    source "$KTAP_HELPERS"
> +else
> +    echo -n "1..0 # SKIP $KTAP_HELPERS file not found"
> +	exit 4
> +fi
> +
> +RPROC_SYS=/sys/class/remoteproc
> +RPROC_SEQ_SLEEP=5
> +rproc_ss_files=
> +num_tests=0
> +test_err=0
> +
> +check_error() {
> +	if [ $? -ne 0 ]; then
> +		test_err=$((test_err+1))
> +		ktap_print_msg "$@"
> +	fi
> +}
> +
> +rproc_seq_test_ss_one() {
> +	ss=$1

"ss" or "subsystem" are Qualcomm terms, please use "remoteproc instance"
instead.

> +	rproc=${RPROC_SYS}/$ss
> +	rproc_name=$(cat $rproc/name)
> +	rproc_state=$(cat $rproc/state)
> +	rproc_ssr=$(cat $rproc/recovery)
> +	ktap_print_msg "Testing rproc sequence for $rproc_name"
> +
> +	# Reset test_err value
> +	test_err=0
> +	if [ "$rproc_ssr" != "enabled" ]; then
> +		echo enabled > $rproc/recovery
> +		check_error "$rproc_name SSR-enabled failed"

Same with "SSR", you can express this with standard terms.

Why do we need "recovery" enabled in order to perform start/stop or
stop/start testing? Doesn't recovery only affect the crash code path?

> +	fi
> +
> +	if [ "$rproc_state" != "running" ]; then

I'd like to see your arguments in the commit message, or a comment here,
of why you do either start/stop or stop/start - instead of e.g. make
sure they are all stopped and then start/stop them in the test.


PS. Please use check go/upstream and adopt b4.

Regards,
Bjorn

> +		echo start > "$rproc/state"
> +		check_error "$rproc_name state-start failed"
> +
> +		sleep ${RPROC_SEQ_SLEEP}
> +
> +		echo stop > "$rproc/state"
> +		check_error "$rproc_name state-stop failed"
> +	else
> +		echo stop > "$rproc/state"
> +		check_error "$rproc_name state-stop failed"
> +
> +		sleep ${RPROC_SEQ_SLEEP}
> +
> +		echo start > "$rproc/state"
> +		check_error "$rproc_name state-start failed"
> +	fi
> +
> +	if [ $test_err -ne 0 ]; then
> +		ktap_test_fail "$rproc_name"
> +	else
> +		ktap_test_pass "$rproc_name"
> +	fi
> +}
diff mbox series

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index e062b5328341..aff76edc4242 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18225,6 +18225,7 @@  F:	Documentation/staging/remoteproc.rst
 F:	drivers/remoteproc/
 F:	include/linux/remoteproc.h
 F:	include/linux/remoteproc/
+F:	tools/testing/selftests/remoteproc/

 REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM
 M:	Bjorn Andersson <andersson@kernel.org>
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 697f13bbbc32..31db0311efdc 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -68,6 +68,7 @@  TARGETS += proc
 TARGETS += pstore
 TARGETS += ptrace
 TARGETS += openat2
+TARGETS += remoteproc
 TARGETS += resctrl
 TARGETS += riscv
 TARGETS += rlimits
diff --git a/tools/testing/selftests/remoteproc/Makefile b/tools/testing/selftests/remoteproc/Makefile
new file mode 100644
index 000000000000..a84b3934fd36
--- /dev/null
+++ b/tools/testing/selftests/remoteproc/Makefile
@@ -0,0 +1,4 @@ 
+# SPDX-License-Identifier: GPL-2.0
+TEST_PROGS := remoteproc_test.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/remoteproc/config b/tools/testing/selftests/remoteproc/config
new file mode 100644
index 000000000000..a5c237d2f3b4
--- /dev/null
+++ b/tools/testing/selftests/remoteproc/config
@@ -0,0 +1 @@ 
+CONFIG_REMOTEPROC=y
diff --git a/tools/testing/selftests/remoteproc/remoteproc_test.sh b/tools/testing/selftests/remoteproc/remoteproc_test.sh
new file mode 100644
index 000000000000..88c8f15d8406
--- /dev/null
+++ b/tools/testing/selftests/remoteproc/remoteproc_test.sh
@@ -0,0 +1,165 @@ 
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+#
+
+DIR="$(dirname $(readlink -f "$0"))"
+
+KTAP_HELPERS="${DIR}/../kselftest/ktap_helpers.sh"
+if [ -e "$KTAP_HELPERS" ]; then
+    source "$KTAP_HELPERS"
+else
+    echo -n "1..0 # SKIP $KTAP_HELPERS file not found"
+	exit 4
+fi
+
+RPROC_SYS=/sys/class/remoteproc
+RPROC_SEQ_SLEEP=5
+rproc_ss_files=
+num_tests=0
+test_err=0
+
+check_error() {
+	if [ $? -ne 0 ]; then
+		test_err=$((test_err+1))
+		ktap_print_msg "$@"
+	fi
+}
+
+rproc_seq_test_ss_one() {
+	ss=$1
+	rproc=${RPROC_SYS}/$ss
+	rproc_name=$(cat $rproc/name)
+	rproc_state=$(cat $rproc/state)
+	rproc_ssr=$(cat $rproc/recovery)
+	ktap_print_msg "Testing rproc sequence for $rproc_name"
+
+	# Reset test_err value
+	test_err=0
+	if [ "$rproc_ssr" != "enabled" ]; then
+		echo enabled > $rproc/recovery
+		check_error "$rproc_name SSR-enabled failed"
+	fi
+
+	if [ "$rproc_state" != "running" ]; then
+		echo start > "$rproc/state"
+		check_error "$rproc_name state-start failed"
+
+		sleep ${RPROC_SEQ_SLEEP}
+
+		echo stop > "$rproc/state"
+		check_error "$rproc_name state-stop failed"
+	else
+		echo stop > "$rproc/state"
+		check_error "$rproc_name state-stop failed"
+
+		sleep ${RPROC_SEQ_SLEEP}
+
+		echo start > "$rproc/state"
+		check_error "$rproc_name state-start failed"
+	fi
+
+	if [ $test_err -ne 0 ]; then
+		ktap_test_fail "$rproc_name"
+	else
+		ktap_test_pass "$rproc_name"
+	fi
+}
+
+rproc_seq_test_all_ss() {
+	# Declare an array to save initial states of each ss
+	org_ss_to_state=""
+
+	# Reset test_err value
+	test_err=0
+
+	for ss in ${rproc_ss_files}; do
+		rproc=${RPROC_SYS}/$ss
+		rproc_name=$(cat $rproc/name)
+		rproc_ssr=$(cat $rproc/recovery)
+
+		# Enable SSR-recovery support
+		if [ "$rproc_ssr" != "enabled" ]; then
+			echo enabled > $rproc/recovery
+			check_error "$rproc_name SSR-enabled failed"
+		fi
+	done
+
+	for ss in ${rproc_ss_files}; do
+		rproc=${RPROC_SYS}/$ss
+		rproc_name=$(cat $rproc/name)
+		rproc_state=$(cat $rproc/state)
+
+		# Save initial states for each ss
+		org_ss_to_state="$org_ss_to_state $rproc_state"
+
+		# Initiate start/stop sequence
+		if [ "$rproc_state" != "running" ]; then
+			echo start > "$rproc/state"
+			check_error "$rproc_name state-start failed"
+		else
+			echo stop > "$rproc/state"
+			check_error "$rproc_name state-stop failed"
+		fi
+		sleep ${RPROC_SEQ_SLEEP}
+	done
+
+	index=1
+	for ss in ${rproc_ss_files}; do
+		rproc=${RPROC_SYS}/$ss
+		rproc_name=$(cat $rproc/name)
+		rproc_state=$(cat $rproc/state)
+
+		ss_state=$(echo $org_ss_to_state | cut -d' ' -f$index)
+		# Terminate start/stop sequence
+		if [ "$ss_state" != "running" ]; then
+			echo stop > "$rproc/state"
+			check_error "$rproc_name state-stop failed"
+		else
+			echo start > "$rproc/state"
+			check_error "$rproc_name state-start failed"
+		fi
+		index=$((index+1))
+		sleep ${RPROC_SEQ_SLEEP}
+	done
+
+	if [ $test_err -ne 0 ]; then
+		ktap_test_fail "for any of $rproc_ss_files"
+	else
+		ktap_test_pass "for all $rproc_ss_files"
+	fi
+}
+
+ktap_print_header
+
+if [[ ! -d "${RPROC_SYS}" ]]; then
+	ktap_skip_all "${RPROC_SYS} doesn't exist."
+	exit "${KSFT_SKIP}"
+fi
+
+rproc_ss_files=$(find ${RPROC_SYS}/remoteproc* -maxdepth 1 -exec basename {} \;)
+num_tests=$(echo ${rproc_ss_files} | wc -w)
+if [[ "${num_tests}" -eq 0 ]]; then
+	ktap_skip_all "${RPROC_SYS}/remoteproc* doesn't exist."
+	exit "${KSFT_SKIP}"
+fi
+
+# Total tests will be:
+# 1) Seq tests for each subsystem sequencially
+# 2) Seq tests for all subsystems concurrently
+num_tests=$((num_tests+1))
+
+ktap_set_plan "${num_tests}"
+
+# Test 1
+ktap_print_msg "Testing rproc up/down sequence for each subsystem sequencially"
+for ss in ${rproc_ss_files}; do
+	rproc_seq_test_ss_one $ss
+done
+
+# Test 2
+ktap_print_msg "Testing rproc up/down sequence for all subsystems concurrently"
+rproc_seq_test_all_ss
+
+ktap_finished