Commit e1083a03 authored by Meng Li's avatar Meng Li Committed by Shuah Khan
Browse files

selftests: amd-pstate: Add test trigger for amd-pstate driver 



Add amd-pstate test trigger in kselftest, it will load/unload
amd-pstate-ut module to test some cases etc.

Signed-off-by: default avatarMeng Li <li.meng@amd.com>
Acked-by: default avatarHuang Rui <ray.huang@amd.com>
Reviewed-by: default avatarShuah Khan <skhan@linuxfoundation.org>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 14eb1c96

tools/testing/selftests/Makefile

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# SPDX-License-Identifier: GPL-2.0

TARGETS += alsa

TARGETS += amd-pstate

TARGETS += arm64

TARGETS += bpf

TARGETS += breakpoints

tools/testing/selftests/amd-pstate/Makefile

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# SPDX-License-Identifier: GPL-2.0-only

# Makefile for amd-pstate/ function selftests



# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"

all:



TEST_PROGS := amd-pstate-ut.sh



include ../lib.mk

tools/testing/selftests/amd-pstate/amd-pstate-ut.sh

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#!/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

tools/testing/selftests/amd-pstate/config

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CONFIG_X86_AMD_PSTATE_UT=m