388 lines
7.0 KiB
Bash
388 lines
7.0 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# protect against multiple inclusion
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if [ $FILE_MAIN ]; then
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return 0
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else
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FILE_MAIN=DONE
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fi
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source basic.sh
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source tbench.sh
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source gitsource.sh
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# amd-pstate-ut only run on x86/x86_64 AMD systems.
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ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
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VENDOR=$(cat /proc/cpuinfo | grep -m 1 'vendor_id' | awk '{print $NF}')
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msg="Skip all tests:"
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FUNC=all
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OUTFILE=selftest
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OUTFILE_TBENCH="$OUTFILE.tbench"
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OUTFILE_GIT="$OUTFILE.gitsource"
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SYSFS=
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CPUROOT=
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CPUFREQROOT=
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MAKE_CPUS=
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TIME_LIMIT=100
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PROCESS_NUM=128
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LOOP_TIMES=3
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TRACER_INTERVAL=10
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CURRENT_TEST=amd-pstate
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COMPARATIVE_TEST=
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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all_scaling_names=("acpi-cpufreq" "amd-pstate")
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# Get current cpufreq scaling driver name
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scaling_name()
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{
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if [ "$COMPARATIVE_TEST" = "" ]; then
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echo "$CURRENT_TEST"
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else
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echo "$COMPARATIVE_TEST"
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fi
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}
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# Counts CPUs with cpufreq directories
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count_cpus()
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{
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count=0;
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for cpu in `ls $CPUROOT | grep "cpu[0-9].*"`; do
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if [ -d $CPUROOT/$cpu/cpufreq ]; then
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let count=count+1;
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fi
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done
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echo $count;
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}
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# $1: policy
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find_current_governor()
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{
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cat $CPUFREQROOT/$1/scaling_governor
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}
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backup_governor()
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{
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policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
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for policy in $policies; do
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cur_gov=$(find_current_governor $policy)
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echo "$policy $cur_gov" >> $OUTFILE.backup_governor.log
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done
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printf "Governor $cur_gov backup done.\n"
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}
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restore_governor()
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{
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i=0;
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policies=$(awk '{print $1}' $OUTFILE.backup_governor.log)
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for policy in $policies; do
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let i++;
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governor=$(sed -n ''$i'p' $OUTFILE.backup_governor.log | awk '{print $2}')
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# switch governor
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echo $governor > $CPUFREQROOT/$policy/scaling_governor
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done
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printf "Governor restored to $governor.\n"
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}
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# $1: governor
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switch_governor()
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{
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policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
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for policy in $policies; do
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filepath=$CPUFREQROOT/$policy/scaling_available_governors
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# Exit if cpu isn't managed by cpufreq core
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if [ ! -f $filepath ]; then
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return;
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fi
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echo $1 > $CPUFREQROOT/$policy/scaling_governor
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done
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printf "Switched governor to $1.\n"
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}
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# All amd-pstate tests
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amd_pstate_all()
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{
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printf "\n=============================================\n"
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printf "***** Running AMD P-state Sanity Tests *****\n"
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printf "=============================================\n\n"
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count=$(count_cpus)
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if [ $count = 0 ]; then
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printf "No cpu is managed by cpufreq core, exiting\n"
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exit;
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else
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printf "AMD P-state manages: $count CPUs\n"
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fi
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# unit test for amd-pstate kernel driver
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amd_pstate_basic
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# tbench
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amd_pstate_tbench
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# gitsource
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amd_pstate_gitsource
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}
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help()
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{
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printf "Usage: $0 [OPTION...]
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[-h <help>]
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[-o <output-file-for-dump>]
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[-c <all: All testing,
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basic: Basic testing,
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tbench: Tbench testing,
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gitsource: Gitsource testing.>]
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[-t <tbench time limit>]
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[-p <tbench process number>]
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[-l <loop times for tbench>]
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[-i <amd tracer interval>]
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[-m <comparative test: acpi-cpufreq>]
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\n"
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exit 2
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}
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parse_arguments()
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{
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while getopts ho:c:t:p:l:i:m: arg
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do
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case $arg in
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h) # --help
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help
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;;
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c) # --func_type (Function to perform: basic, tbench, gitsource (default: all))
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FUNC=$OPTARG
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;;
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o) # --output-file (Output file to store dumps)
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OUTFILE=$OPTARG
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;;
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t) # --tbench-time-limit
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TIME_LIMIT=$OPTARG
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;;
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p) # --tbench-process-number
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PROCESS_NUM=$OPTARG
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;;
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l) # --tbench/gitsource-loop-times
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LOOP_TIMES=$OPTARG
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;;
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i) # --amd-tracer-interval
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TRACER_INTERVAL=$OPTARG
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;;
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m) # --comparative-test
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COMPARATIVE_TEST=$OPTARG
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;;
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*)
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help
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;;
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esac
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done
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}
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command_perf()
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{
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if ! command -v perf > /dev/null; then
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echo $msg please install perf. >&2
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exit $ksft_skip
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fi
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}
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command_tbench()
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{
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if ! command -v tbench > /dev/null; then
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if apt policy dbench > /dev/null 2>&1; then
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echo $msg apt install dbench >&2
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exit $ksft_skip
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elif yum list available | grep dbench > /dev/null 2>&1; then
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echo $msg yum install dbench >&2
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exit $ksft_skip
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fi
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fi
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if ! command -v tbench > /dev/null; then
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echo $msg please install tbench. >&2
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exit $ksft_skip
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fi
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}
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prerequisite()
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{
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if ! echo "$ARCH" | grep -q x86; then
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echo "$0 # Skipped: Test can only run on x86 architectures."
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exit $ksft_skip
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fi
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if ! echo "$VENDOR" | grep -iq amd; then
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echo "$0 # Skipped: Test can only run on AMD CPU."
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echo "$0 # Current cpu vendor is $VENDOR."
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exit $ksft_skip
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fi
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scaling_driver=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_driver)
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if [ "$COMPARATIVE_TEST" = "" ]; then
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if [ "$scaling_driver" != "$CURRENT_TEST" ]; then
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echo "$0 # Skipped: Test can only run on $CURRENT_TEST driver or run comparative test."
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echo "$0 # Please set X86_AMD_PSTATE enabled or run comparative test."
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echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
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exit $ksft_skip
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fi
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else
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case "$FUNC" in
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"tbench" | "gitsource")
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if [ "$scaling_driver" != "$COMPARATIVE_TEST" ]; then
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echo "$0 # Skipped: Comparison test can only run on $COMPARISON_TEST driver."
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echo "$0 # Current cpufreq scaling drvier is $scaling_driver."
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exit $ksft_skip
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fi
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;;
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*)
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echo "$0 # Skipped: Comparison test are only for tbench or gitsource."
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echo "$0 # Current comparative test is for $FUNC."
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exit $ksft_skip
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;;
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esac
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fi
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if [ ! -w /dev ]; then
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echo $msg please run this as root >&2
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exit $ksft_skip
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fi
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case "$FUNC" in
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"all")
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command_perf
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command_tbench
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;;
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"tbench")
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command_perf
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command_tbench
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;;
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"gitsource")
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command_perf
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;;
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esac
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SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
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if [ ! -d "$SYSFS" ]; then
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echo $msg sysfs is not mounted >&2
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exit 2
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fi
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CPUROOT=$SYSFS/devices/system/cpu
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CPUFREQROOT="$CPUROOT/cpufreq"
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if ! ls $CPUROOT/cpu* > /dev/null 2>&1; then
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echo $msg cpus not available in sysfs >&2
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exit 2
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fi
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if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then
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echo $msg cpufreq directory not available in sysfs >&2
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exit 2
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fi
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}
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do_test()
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{
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# Check if CPUs are managed by cpufreq or not
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count=$(count_cpus)
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MAKE_CPUS=$((count*2))
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if [ $count = 0 ]; then
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echo "No cpu is managed by cpufreq core, exiting"
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exit 2;
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fi
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case "$FUNC" in
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"all")
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amd_pstate_all
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;;
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"basic")
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amd_pstate_basic
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;;
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"tbench")
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amd_pstate_tbench
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;;
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"gitsource")
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amd_pstate_gitsource
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;;
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*)
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echo "Invalid [-f] function type"
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help
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;;
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esac
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}
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# clear dumps
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pre_clear_dumps()
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{
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case "$FUNC" in
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"all")
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rm -rf $OUTFILE.log
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rm -rf $OUTFILE.backup_governor.log
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rm -rf *.png
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;;
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"tbench")
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rm -rf $OUTFILE.log
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rm -rf $OUTFILE.backup_governor.log
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rm -rf tbench_*.png
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;;
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"gitsource")
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rm -rf $OUTFILE.log
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rm -rf $OUTFILE.backup_governor.log
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rm -rf gitsource_*.png
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;;
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*)
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;;
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esac
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}
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post_clear_dumps()
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{
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rm -rf $OUTFILE.log
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rm -rf $OUTFILE.backup_governor.log
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}
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# Parse arguments
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parse_arguments $@
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# Make sure all requirements are met
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prerequisite
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# Run requested functions
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pre_clear_dumps
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do_test | tee -a $OUTFILE.log
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post_clear_dumps
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