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|
#!/bin/sh
# Test GPU related features
#
# Tested parameters:
# * INTEL_GPU_MIN_FREQ_ON_AC/BAT
# * INTEL_GPU_MAX_FREQ_ON_AC/BAT
# * INTEL_GPU_BOOST_FREQ_ON_AC/BAT
# * RADEON_DPM_PERF_LEVEL_ON_AC/BAT
# * AMDGPU_ABM_LEVEL_ON_AC/BAT
#
# Supported GPU drivers:
# * i915
# * amdgpu
#
# Copyright (c) 2025 Thomas Koch <linrunner at gmx.net> and others.
# SPDX-License-Identifier: GPL-2.0-or-later
# --- Constants
readonly TESTLIB="./test-func"
readonly TLP="tlp"
readonly SUDO="sudo"
readonly GPUGLOB='/sys/class/drm/card[0-9]'
# --- Functions
check_intel_gpu_freq () {
# apply Intel gpu min/max/boost frequencies
# global param: $_gpu_base, $_testcnt, $_failcnt
# retval: $_testcnt++, $_failcnt++
local min min_save="" max max_save boost boost_save
local psfx psfsq sc=0
local rc=0 errcnt=0
printf_msg "check_intel_gpu_freq {{{\n"
# determine test sequence for parameter suffix _AC/BAT, active power source goes first
if on_ac; then
psfsq="AC BAT"
else
psfsq="BAT AC"
fi
for psfx in $psfsq; do
sc=$((sc + 1))
if [ $sc -eq 1 ]; then
# --- test settings profile for active power source
# /sys/class/drm/card1/gt_min_freq_mhz = 100 [MHz]
# /sys/class/drm/card1/gt_max_freq_mhz = 1300 [MHz]
# /sys/class/drm/card1/gt_boost_freq_mhz = 1300 [MHz]
# /sys/class/drm/card1/gt_RPn_freq_mhz = 100 [MHz] (GPU min)
# /sys/class/drm/card1/gt_RP0_freq_mhz = 1300 [MHz] (GPU max)
# save initial frequencies
min_save="$(read_sysf "${_gpu_base}/gt_min_freq_mhz")"
max_save="$(read_sysf "${_gpu_base}/gt_max_freq_mhz")"
boost_save="$(read_sysf "${_gpu_base}/gt_boost_freq_mhz")"
printf_msg " initial: min/%s max/%s boost/%s\n" "$min_save" "$max_save" "$boost_save"
printf_msg " %s(active):" "$psfx"
# increase min, decrease max/boost frequency
min=$((min_save + 100))
max=$((max_save - 200))
boost=$((boost_save - 100))
case "$psfx" in
AC) ${SUDO} ${TLP} start -- INTEL_GPU_MIN_FREQ_ON_AC="$min" INTEL_GPU_MIN_FREQ_ON_BAT="" \
INTEL_GPU_MAX_FREQ_ON_AC="$max" INTEL_GPU_MAX_FREQ_ON_BAT="" \
INTEL_GPU_BOOST_FREQ_ON_AC="$boost" INTEL_GPU_BOOST_FREQ_ON_BAT="" > /dev/null 2>&1 ;;
BAT) ${SUDO} ${TLP} start -- INTEL_GPU_MIN_FREQ_ON_BAT="$min" INTEL_GPU_MIN_FREQ_ON_AC="" \
INTEL_GPU_MAX_FREQ_ON_BAT="$max" INTEL_GPU_MAX_FREQ_ON_AC="" \
INTEL_GPU_BOOST_FREQ_ON_AC="$boost" INTEL_GPU_BOOST_FREQ_ON_BAT="" > /dev/null 2>&1 ;;
esac
# expect change
compare_sysf "$min" "${_gpu_base}/gt_min_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " min/%s=ok" "$min"
else
printf_msg " min/%s=err(%s)" "$min" "$rc"
errcnt=$((errcnt + 1))
fi
compare_sysf "$max" "${_gpu_base}/gt_max_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " max/%s=ok" "$max"
else
printf_msg " max/%s=err(%s)" "$max" "$rc"
errcnt=$((errcnt + 1))
fi
compare_sysf "$boost" "${_gpu_base}/gt_boost_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " boost/%s=ok" "$boost"
else
printf_msg " boost/%s=err(%s)" "$boost" "$rc"
errcnt=$((errcnt + 1))
fi
# revert to initial frequencies
case "$psfx" in
AC) ${SUDO} ${TLP} start -- INTEL_GPU_MIN_FREQ_ON_AC="$min_save" INTEL_GPU_MIN_FREQ_ON_BAT="" \
INTEL_GPU_MAX_FREQ_ON_AC="$max_save" INTEL_GPU_MAX_FREQ_ON_BAT="" \
INTEL_GPU_BOOST_FREQ_ON_AC="$boost_save" INTEL_GPU_BOOST_FREQ_ON_BAT="" > /dev/null 2>&1 ;;
BAT) ${SUDO} ${TLP} start -- INTEL_GPU_MIN_FREQ_ON_BAT="$min_save" INTEL_GPU_MIN_FREQ_ON_AC="" \
INTEL_GPU_MAX_FREQ_ON_BAT="$max_save" INTEL_GPU_MAX_FREQ_ON_AC="" \
INTEL_GPU_BOOST_FREQ_ON_AC="$boost_save" INTEL_GPU_BOOST_FREQ_ON_BAT="" > /dev/null 2>&1 ;;
esac
# expect initial frequencies
compare_sysf "$min_save" "${_gpu_base}/gt_min_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " min/%s=ok" "$min_save"
else
printf_msg " min/%s=err(%s)" "$min_save" "$rc"
errcnt=$((errcnt + 1))
fi
compare_sysf "$max_save" "${_gpu_base}/gt_max_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " max/%s=ok" "$max_save"
else
printf_msg " max/%s=err(%s)" "$max_save" "$rc"
errcnt=$((errcnt + 1))
fi
compare_sysf "$boost_save" "${_gpu_base}/gt_boost_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " boost/%s=ok" "$boost_save"
else
printf_msg " boost/%s=err(%s)" "$boost_save" "$rc"
errcnt=$((errcnt + 1))
fi
else
# --- test settings profile for inactive power source
printf_msg "\n %s(inactive):" "$psfx"
# try increased min, decreased max frequency again (from above)
case "$psfx" in
AC) ${SUDO} ${TLP} start -- INTEL_GPU_MIN_FREQ_ON_AC="$min" INTEL_GPU_MIN_FREQ_ON_BAT="" \
INTEL_GPU_MAX_FREQ_ON_AC="$max" INTEL_GPU_MAX_FREQ_ON_BAT="" \
INTEL_GPU_BOOST_FREQ_ON_AC="$boost" INTEL_GPU_BOOST_FREQ_ON_BAT="" > /dev/null 2>&1 ;;
BAT) ${SUDO} ${TLP} start -- INTEL_GPU_MIN_FREQ_ON_BAT="$min" INTEL_GPU_MIN_FREQ_ON_AC="" \
INTEL_GPU_MAX_FREQ_ON_BAT="$max" INTEL_GPU_MAX_FREQ_ON_AC="" \
INTEL_GPU_BOOST_FREQ_ON_AC="$boost" INTEL_GPU_BOOST_FREQ_ON_BAT="" > /dev/null 2>&1 ;;
esac
# do not expect change
compare_sysf "$min_save" "${_gpu_base}/gt_min_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " min/%s=ignored(ok)" "$min_save"
else
printf_msg " min/%s=err(%s)" "$min_save" "$rc"
errcnt=$((errcnt + 1))
fi
compare_sysf "$max_save" "${_gpu_base}/gt_max_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " max/%s=ignored(ok)" "$max_save"
else
printf_msg " max/%s=err(%s)" "$max_save" "$rc"
errcnt=$((errcnt + 1))
fi
compare_sysf "$boost_save" "${_gpu_base}/gt_boost_freq_mhz"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " boost/%s=ignored(ok)" "$boost_save"
else
printf_msg " boost/%s=err(%s)" "$boost_save" "$rc"
errcnt=$((errcnt + 1))
fi
# print resulting frequencies
printf_msg "\n result: min/%s max/%s boost/%s\n" \
"$(read_sysf "${_gpu_base}/gt_min_freq_mhz")" "$(read_sysf "${_gpu_base}/gt_max_freq_mhz")" \
"$(read_sysf "${_gpu_base}/gt_boost_freq_mhz")"
fi
done # psfx
# print summary
printf_msg "}}} errcnt=%s\n\n" "$errcnt"
_testcnt=$((_testcnt + 1))
[ "$errcnt" -gt 0 ] && _failcnt=$((_failcnt + 1))
return $errcnt
}
check_amd_gpu_dpm_level () {
# apply AMD gpu dpm level
# global param: $_gpu_base, $_testcnt, $_failcnt
# retval: $_testcnt++, $_failcnt++
local dpm dpm_save dpm_seq dpm_cur
local psfx psfsq sc=0
local rc=0 errcnt=0
printf_msg "check_amd_gpu_dpm_level {{{\n"
# determine test sequence for parameter suffix _AC/BAT, active power source goes first
if on_ac; then
psfsq="AC BAT"
else
psfsq="BAT AC"
fi
for psfx in $psfsq; do
sc=$((sc + 1))
if [ $sc -eq 1 ]; then
# --- test settings profile for active power source
# save initial dpm level
dpm_save="$(read_sysf "${_gpu_base}/device/power_dpm_force_performance_level")"
printf_msg " initial: %s\n" "$dpm_save"
printf_msg " %s(active):" "$psfx"
# iterate dpm levels supported by the driver, return to initial level
case "$dpm_save" in
auto) dpm_seq="low high auto" ;;
low) dpm_seq="high auto low" ;;
high) dpm_seq="auto low high" ;;
esac
for dpm in $dpm_seq; do
case "$psfx" in
AC) ${SUDO} ${TLP} start -- RADEON_DPM_PERF_LEVEL_ON_AC="$dpm" RADEON_DPM_PERF_LEVEL_ON_BAT="" > /dev/null 2>&1 ;;
BAT) ${SUDO} ${TLP} start -- RADEON_DPM_PERF_LEVEL_ON_BAT="$dpm" RADEON_DPM_PERF_LEVEL_ON_AC="" > /dev/null 2>&1 ;;
esac
# expect change
compare_sysf "$dpm" "${_gpu_base}/device/power_dpm_force_performance_level"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " %s=ok" "$dpm"
else
printf_msg " %s=%s" "$dpm" "$rc"
errcnt=$((errcnt + 1))
fi
done # pol
else
# --- test settings profile for inactive power source
printf_msg "\n %s(inactive):" "$psfx"
# save current dpm level
dpm_cur="$(read_sysf "${_gpu_base}/device/power_dpm_force_performance_level")"
# try different dpm level
case "$dpm_cur" in
auto) dpm="low" ;;
low) dpm="high" ;;
high) dpm="auto" ;;
esac
case "$psfx" in
AC) ${SUDO} ${TLP} start -- RADEON_DPM_PERF_LEVEL_ON_AC="$dpm" RADEON_DPM_PERF_LEVEL_ON_BAT="" > /dev/null 2>&1 ;;
BAT) ${SUDO} ${TLP} start -- RADEON_DPM_PERF_LEVEL_ON_BAT="$dpm" RADEON_DPM_PERF_LEVEL_ON_AC="" > /dev/null 2>&1 ;;
esac
# do not expect change
compare_sysf "$dpm_cur" "${_gpu_base}/device/power_dpm_force_performance_level"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " %s=ignored(ok)" "$dpm"
else
printf_msg " %s=err(%s)" "$dpm" "$rc"
errcnt=$((errcnt + 1))
fi
# print resulting dpm level
printf_msg "\n result: %s\n" "$(read_sysf "${_gpu_base}/device/power_dpm_force_performance_level")"
fi
done # psfx
printf_msg "}}} errcnt=%s\n\n" "$errcnt"
_testcnt=$((_testcnt + 1))
[ "$errcnt" -gt 0 ] && _failcnt=$((_failcnt + 1))
return $errcnt
}
check_amd_gpu_abm_level () {
# apply AMD gpu dpm level
# global param: $_gpu_base, $_testcnt, $_failcnt
# retval: $_testcnt++, $_failcnt++
local abm abm_save abm_seq abm_cur abm_sysf
local psfx psfsq sc=0
local rc=0 errcnt=0
printf_msg "check_amd_gpu_abm_level {{{\n"
abm_sysf="${_gpu_base}/${_gpu_base##/*/}-eDP-1/amdgpu/panel_power_savings"
if [ ! -f "$abm_sysf" ]; then
printf_msg " Error: sysfile %s not present.\n" "$abm_sysf"
_testcnt=$((_testcnt + 1))
_failcnt=$((_failcnt + 1))
printf_msg "}}} errcnt=%s\n\n" "1"
return 1
fi
# determine test sequence for parameter suffix _AC/BAT, active power source goes first
if on_ac; then
psfsq="AC BAT"
else
psfsq="BAT AC"
fi
for psfx in $psfsq; do
sc=$((sc + 1))
if [ $sc -eq 1 ]; then
# --- test settings profile for active power source
# save initial abm level
abm_save="$(read_sysf "$abm_sysf")"
printf_msg " initial: %s\n" "$abm_save"
printf_msg " %s(active):" "$psfx"
# iterate abm levels supported by the driver, return to initial level
case "$abm_save" in
0) abm_seq="1 2 3 4 0" ;;
1) abm_seq="2 3 4 0 1" ;;
2) abm_seq="3 4 0 1 2" ;;
3) abm_seq="4 0 1 2 3" ;;
esac
for abm in $abm_seq; do
case "$psfx" in
AC) ${SUDO} ${TLP} start -- AMDGPU_ABM_LEVEL_ON_AC="$abm" AMDGPU_ABM_LEVEL_ON_BAT="" > /dev/null 2>&1 ;;
BAT) ${SUDO} ${TLP} start -- AMDGPU_ABM_LEVEL_ON_BAT="$abm" AMDGPU_ABM_LEVEL_ON_AC="" > /dev/null 2>&1 ;;
esac
# expect change
compare_sysf "$abm" "$abm_sysf"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " %s=ok" "$abm"
else
printf_msg " %s=%s" "$abm" "$rc"
errcnt=$((errcnt + 1))
fi
done # pol
else
# --- test settings profile for inactive power source
printf_msg "\n %s(inactive):" "$psfx"
# save current abm level
abm_cur="$(read_sysf "$abm_sysf")"
# try different abm level
case "$abm_cur" in
0) abm="1" ;;
1) abm="2" ;;
2) abm="3" ;;
3) abm="4" ;;
esac
case "$psfx" in
AC) ${SUDO} ${TLP} start -- AMDGPU_ABM_LEVEL_ON_AC="$abm" AMDGPU_ABM_LEVEL_ON_BAT="" > /dev/null 2>&1 ;;
BAT) ${SUDO} ${TLP} start -- AMDGPU_ABM_LEVEL_ON_BAT="$abm" AMDGPU_ABM_LEVEL_ON_AC="" > /dev/null 2>&1 ;;
esac
# do not expect change
compare_sysf "$abm_cur" "$abm_sysf"
rc=$?
if [ "$rc" -eq 0 ]; then
printf_msg " %s=ignored(ok)" "$abm"
else
printf_msg " %s=err(%s)" "$abm" "$rc"
errcnt=$((errcnt + 1))
fi
# print resulting abm level
printf_msg "\n result: %s\n" "$(read_sysf "$abm_sysf")"
fi
done # psfx
printf_msg "}}} errcnt=%s\n\n" "$errcnt"
_testcnt=$((_testcnt + 1))
[ "$errcnt" -gt 0 ] && _failcnt=$((_failcnt + 1))
return $errcnt
}
# --- MAIN
# source library
# shellcheck disable=SC1090
. $TESTLIB || {
printf "Error: missing library %s\n" "${TESTLIB}" 1>&2
exit 70
}
# check prerequisites and initialize
check_tlp
start_report
# shellcheck disable=SC2034
_basename="${0##*/}"
# shellcheck disable=SC2034
_logfile="$(date -Iseconds)_${_basename%.*}.log"
_testcnt=0
_failcnt=0
report_test "$_basename"
# --- Iterate GPUs
for _gpu_base in $GPUGLOB; do
[ -d "$_gpu_base" ] || break
# determine gpu driver
_gpu_driver="$(readlink "${_gpu_base}/device/driver")"
_gpu_driver="${_gpu_driver##*/}"
printf_msg "+++ gpu: %s --- driver: %s\n\n" "$_gpu_base" "$_gpu_driver"
# checks
case "$_gpu_driver" in
i915)
check_intel_gpu_freq
;;
amdgpu)
check_amd_gpu_dpm_level
check_amd_gpu_abm_level
;;
*)
printf "%s has no test coverage. Skipped.\n" "$_gpu_driver"
;;
esac
done # gpud
report_result "$_testcnt" "$_failcnt"
print_report
# --- Exit
exit $_failcnt
|
