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Date: Thu, 21 Jul 2022 13:02:31 -0500
From: Nathan Fontenot <nafonten@....com>
To: Meng Li <li.meng@....com>, Shuah Khan <skhan@...uxfoundation.org>,
Huang Rui <ray.huang@....com>, linux-pm@...r.kernel.org
Cc: "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
Nathan Fontenot <nathan.fontenot@....com>,
Deepak Sharma <deepak.sharma@....com>,
Alex Deucher <alexander.deucher@....com>,
Mario Limonciello <mario.limonciello@....com>,
Jinzhou Su <Jinzhou.Su@....com>,
Perry Yuan <Perry.Yuan@....com>,
Xiaojian Du <Xiaojian.Du@....com>,
Viresh Kumar <viresh.kumar@...aro.org>,
Borislav Petkov <bp@...en8.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V1 1/4] selftests: amd-pstate: Modify amd-pstate-ut.sh to
basic.sh.
On 7/6/22 02:36, Meng Li wrote:
> Modify amd-pstate-ut.sh to basic.sh.
> The purpose of this modification is to facilitate the subsequent
> addition of gitsource, tbench and other tests.
>
> Signed-off-by: Meng Li <li.meng@....com>
> ---
> tools/testing/selftests/amd-pstate/Makefile | 3 +-
> .../selftests/amd-pstate/amd-pstate-ut.sh | 55 --------
> tools/testing/selftests/amd-pstate/basic.sh | 38 +++++
> tools/testing/selftests/amd-pstate/main.sh | 131 ++++++++++++++++++
> tools/testing/selftests/amd-pstate/run.sh | 15 ++
> 5 files changed, 186 insertions(+), 56 deletions(-)
> delete mode 100755 tools/testing/selftests/amd-pstate/amd-pstate-ut.sh
> create mode 100755 tools/testing/selftests/amd-pstate/basic.sh
> create mode 100755 tools/testing/selftests/amd-pstate/main.sh
> create mode 100755 tools/testing/selftests/amd-pstate/run.sh
>
> diff --git a/tools/testing/selftests/amd-pstate/Makefile b/tools/testing/selftests/amd-pstate/Makefile
> index 199867f44b32..167ab51ec290 100644
> --- a/tools/testing/selftests/amd-pstate/Makefile
> +++ b/tools/testing/selftests/amd-pstate/Makefile
> @@ -4,6 +4,7 @@
> # No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
> all:
>
> -TEST_PROGS := amd-pstate-ut.sh
> +TEST_PROGS := run.sh
> +TEST_FILES := main.sh basic.sh
>
> include ../lib.mk
> diff --git a/tools/testing/selftests/amd-pstate/amd-pstate-ut.sh b/tools/testing/selftests/amd-pstate/amd-pstate-ut.sh
> deleted file mode 100755
> index 273364650285..000000000000
> --- a/tools/testing/selftests/amd-pstate/amd-pstate-ut.sh
> +++ /dev/null
> @@ -1,55 +0,0 @@
> -#!/bin/sh
> -# SPDX-License-Identifier: GPL-2.0
> -
> -# amd-pstate-ut is a test module for testing the amd-pstate driver.
> -# It can only run on x86 architectures and current cpufreq driver
> -# must be amd-pstate.
> -# (1) It can help all users to verify their processor support
> -# (SBIOS/Firmware or Hardware).
> -# (2) Kernel can have a basic function test to avoid the kernel
> -# regression during the update.
> -# (3) We can introduce more functional or performance tests to align
> -# the result together, it will benefit power and performance scale optimization.
> -
> -# Kselftest framework requirement - SKIP code is 4.
> -ksft_skip=4
> -
> -# amd-pstate-ut only run on x86/x86_64 AMD systems.
> -ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
> -VENDOR=$(cat /proc/cpuinfo | grep -m 1 'vendor_id' | awk '{print $NF}')
> -
> -if ! echo "$ARCH" | grep -q x86; then
> - echo "$0 # Skipped: Test can only run on x86 architectures."
> - exit $ksft_skip
> -fi
> -
> -if ! echo "$VENDOR" | grep -iq amd; then
> - echo "$0 # Skipped: Test can only run on AMD CPU."
> - echo "$0 # Current cpu vendor is $VENDOR."
> - exit $ksft_skip
> -fi
> -
> -scaling_driver=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_driver)
> -if [ "$scaling_driver" != "amd-pstate" ]; then
> - echo "$0 # Skipped: Test can only run on amd-pstate driver."
> - echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
> - exit $ksft_skip
> -fi
> -
> -msg="Skip all tests:"
> -if [ ! -w /dev ]; then
> - echo $msg please run this as root >&2
> - exit $ksft_skip
> -fi
> -
> -if ! /sbin/modprobe -q -n amd-pstate-ut; then
> - echo "amd-pstate-ut: module amd-pstate-ut is not found [SKIP]"
> - exit $ksft_skip
> -fi
> -if /sbin/modprobe -q amd-pstate-ut; then
> - /sbin/modprobe -q -r amd-pstate-ut
> - echo "amd-pstate-ut: ok"
> -else
> - echo "amd-pstate-ut: [FAIL]"
> - exit 1
> -fi
> diff --git a/tools/testing/selftests/amd-pstate/basic.sh b/tools/testing/selftests/amd-pstate/basic.sh
> new file mode 100755
> index 000000000000..e4c43193e4a3
> --- /dev/null
> +++ b/tools/testing/selftests/amd-pstate/basic.sh
> @@ -0,0 +1,38 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: GPL-2.0
> +
> +# amd-pstate-ut is a test module for testing the amd-pstate driver.
> +# It can only run on x86 architectures and current cpufreq driver
> +# must be amd-pstate.
> +# (1) It can help all users to verify their processor support
> +# (SBIOS/Firmware or Hardware).
> +# (2) Kernel can have a basic function test to avoid the kernel
> +# regression during the update.
> +# (3) We can introduce more functional or performance tests to align
> +# the result together, it will benefit power and performance scale optimization.
> +
> +# protect against multiple inclusion
> +if [ $FILE_BASIC ]; then
> + return 0
> +else
> + FILE_BASIC=DONE
> +fi
> +
> +amd_pstate_basic()
> +{
> + printf "\n---------------------------------------------\n"
> + printf "*** Running AMD P-state ut ***"
> + printf "\n---------------------------------------------\n"
> +
> + if ! /sbin/modprobe -q -n amd-pstate-ut; then
> + echo "amd-pstate-ut: module amd-pstate-ut is not found [SKIP]"
> + exit $ksft_skip
> + fi
> + if /sbin/modprobe -q amd-pstate-ut; then
> + /sbin/modprobe -q -r amd-pstate-ut
> + echo "amd-pstate-basic: ok"
> + else
> + echo "amd-pstate-basic: [FAIL]"
> + exit 1
> + fi
> +}
> diff --git a/tools/testing/selftests/amd-pstate/main.sh b/tools/testing/selftests/amd-pstate/main.sh
> new file mode 100755
> index 000000000000..1c28b5d7b4c5
> --- /dev/null
> +++ b/tools/testing/selftests/amd-pstate/main.sh
> @@ -0,0 +1,131 @@
> +#!/bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +
> +# protect against multiple inclusion
> +if [ $FILE_MAIN ]; then
> + return 0
> +else
> + FILE_MAIN=DONE
> +fi
> +
> +source basic.sh
> +
> +# amd-pstate-ut only run on x86/x86_64 AMD systems.
> +ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
> +VENDOR=$(cat /proc/cpuinfo | grep -m 1 'vendor_id' | awk '{print $NF}')
> +
> +FUNC=all
> +OUTFILE=selftest
> +
> +# Kselftest framework requirement - SKIP code is 4.
> +ksft_skip=4
> +
> +# All amd-pstate tests
> +amd_pstate_all()
> +{
> + printf "\n=============================================\n"
> + printf "***** Running AMD P-state Sanity Tests *****\n"
> + printf "=============================================\n\n"
> +
> + # unit test for amd-pstate kernel driver
> + amd_pstate_basic
> +}
> +
> +helpme()
> +{
> + printf "Usage: $0 [OPTION...]
> + [-h <help>]
> + [-o <output-file-for-dump>]
> + [-c <all: All testing,
> + basic: Basic testing.>]
> + \n"
> + exit 2
> +}
> +
> +parse_arguments()
> +{
> + while getopts ho:c: arg
> + do
> + case $arg in
> + h) # --help
> + helpme
> + ;;
> +
> + c) # --func_type (Function to perform: basic (default: all))
> + FUNC=$OPTARG
> + ;;
> +
> + o) # --output-file (Output file to store dumps)
> + OUTFILE=$OPTARG
> + ;;
> +
> + \?)
> + helpme
> + ;;
> + esac
> + done
> +}
> +
> +prerequisite()
> +{
> + if ! echo "$ARCH" | grep -q x86; then
> + echo "$0 # Skipped: Test can only run on x86 architectures."
> + exit $ksft_skip
> + fi
> +
> + if ! echo "$VENDOR" | grep -iq amd; then
> + echo "$0 # Skipped: Test can only run on AMD CPU."
> + echo "$0 # Current cpu vendor is $VENDOR."
> + exit $ksft_skip
> + fi
> +
> + scaling_driver=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_driver)
> + if [ "$scaling_driver" != "amd-pstate" ]; then
> + echo "$0 # Skipped: Test can only run on amd-pstate driver."
> + echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
> + exit $ksft_skip
> + fi
> +
> + msg="Skip all tests:"
> + if [ ! -w /dev ]; then
> + echo $msg please run this as root >&2
> + exit $ksft_skip
> + fi
> +}
> +
> +do_test()
> +{
> + case "$FUNC" in
> + "all")
> + amd_pstate_all
> + ;;
> +
> + "basic")
> + amd_pstate_basic
> + ;;
> +
> + *)
> + echo "Invalid [-f] function type"
> + helpme
> + ;;
> + esac
> +}
> +
> +# clear dumps
> +pre_clear_dumps()
> +{
> + case "$FUNC" in
> + "all")
> + rm -rf $OUTFILE*
> + ;;
> +
> + "basic")
> + ;;
> +
> + esac
Small nit. You have two different indentation styles for your case statements, do_test
and pre_clear_dumps vs parse_arguments. Would be nice to stick to a single style.
> +}
> +
> +post_clear_dumps()
> +{
> + rm -rf $OUTFILE.log
> +}
> diff --git a/tools/testing/selftests/amd-pstate/run.sh b/tools/testing/selftests/amd-pstate/run.sh
> new file mode 100755
> index 000000000000..247e80bfee44
> --- /dev/null
> +++ b/tools/testing/selftests/amd-pstate/run.sh
> @@ -0,0 +1,15 @@
> +#!/bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +
> +source main.sh
> +
> +# Parse arguments
> +parse_arguments $@
> +
> +# Make sure all requirements are met
> +prerequisite
> +
> +# Run requested functions
> +pre_clear_dumps
> +do_test | tee -a $OUTFILE.log
> +post_clear_dumps
run.sh seems like it's just a wrapper for main.sh, can these two files be merged into a single file?
-Nathan
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