130 lines
5.6 KiB
Django/Jinja
130 lines
5.6 KiB
Django/Jinja
#!/bin/bash
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{{ ansible_managed | comment }}
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# This is the script for 'amdgpu' profiles, (re)setting clock/power/voltage tunables
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#
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# AMDGPU driver/sysfs references:
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# https://01.org/linuxgraphics/gfx-docs/drm/gpu/amdgpu.html
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# https://docs.kernel.org/gpu/amdgpu/thermal.html
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#
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# Variables shown below named '$TUNED_...' are given values by '/etc/tuned/amdgpu-profile-vars.conf'
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#
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# determine the connected GPU using the DRM subsystem. FIXME: assumes one card, make configurable
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CARD=$(/usr/bin/grep -ls ^connected /sys/class/drm/*/status | /usr/bin/grep -o 'card[0-9]' | /usr/bin/sort | /usr/bin/uniq | /usr/bin/sort -h | /usr/bin/tail -1)
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function get_hwmon_dir() {
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CARD_DIR="/sys/class/drm/${1}/device/"
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for CANDIDATE in "${CARD_DIR}"/hwmon/hwmon*; do
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if [[ -f "${CANDIDATE}"/power1_cap ]]; then
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# found a valid hwmon dir
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echo "${CANDIDATE}"
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fi
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done
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}
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# determine the hwmon directory
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HWMON_DIR=$(get_hwmon_dir "${CARD}")
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# read all of the power profiles, used to get the IDs for assignment later
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PROFILE_MODES=$(< /sys/class/drm/"${CARD}"/device/pp_power_profile_mode)
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# get power capability; later used determine limits
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read -r -d '' POWER_CAP < "$HWMON_DIR"/power1_cap_max
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function amdgpu_profile_reset() {
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# set control mode back to auto
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# attempts to dynamically set optimal power profile for (load) conditions
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echo 'auto' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
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# reset any existing profile clock changes
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echo 'r' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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# adjust power limit using multiplier against board capability
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POWER_LIM_DEFAULT=$(/usr/bin/awk -v m="$POWER_CAP" -v n="${TUNED_tuned_amdgpu_power_multi_def}" 'BEGIN {printf "%.0f", (m*n)}')
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echo "$POWER_LIM_DEFAULT" | tee "${HWMON_DIR}/power1_cap"
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# extract the power-saving profile ID number
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PROF_DEFAULT_NUM=$(/usr/bin/awk '$0 ~ /BOOTUP_DEFAULT.*:/ {print $1}' <<< "$PROFILE_MODES")
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# reset power/clock heuristics to power-saving
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echo "${PROF_DEFAULT_NUM}" | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode
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# delay before returning - have mercy, may be followed with other profile function calls
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sleep 0.5
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}
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function amdgpu_profile_overclock() {
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echo "s 0 ${TUNED_tuned_amdgpu_clock_min}" | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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echo "s 1 ${TUNED_tuned_amdgpu_clock_max}" | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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echo "m 1 ${TUNED_tuned_amdgpu_memclock_static}" | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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# under/over-voltage is considered optional or less likely to be defined, checked before use
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if [[ -n ${TUNED_tuned_amdgpu_mv_offset} ]]; then
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echo "vo ${TUNED_tuned_amdgpu_mv_offset}" | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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fi
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# commit the changes
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echo 'c' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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# force GPU core and memory into highest clocks (fix flickering and poor power management)
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# set manual control mode
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# allows control via 'pp_dpm_mclk', 'pp_dpm_sclk', 'pp_dpm_pcie', 'pp_dpm_fclk', and 'pp_power_profile_mode' files
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echo 'manual' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
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# adjust power limit using multiplier against board capability
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POWER_LIM_OC=$(/usr/bin/awk -v m="$POWER_CAP" -v n="${TUNED_tuned_amdgpu_power_multi_oc}" 'BEGIN {printf "%.0f", (m*n)}')
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echo "$POWER_LIM_OC" | tee "${HWMON_DIR}/power1_cap"
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# avoid display flickering, force OC'd memory to highest clock
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echo '3' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_mclk
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# extract the VR power profile ID number
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PROF_VR_NUM=$(/usr/bin/awk '$0 ~ /VR.*:/ {print $1}' <<< "$PROFILE_MODES")
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# force 'overclocked' profile to 'VR' power/clock heuristics
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# latency/frame timing seemed favorable with relatively-close minimum clocks
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echo "${PROF_VR_NUM}" | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode
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# delay before returning - have mercy, may be followed with other profile function calls
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sleep 0.5
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}
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function amdgpu_profile_help() {
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echo "Usage: $0 {reset|overclock|peak}"
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exit 1
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}
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# Check if an argument was provided
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if [ -z "$1" ]; then
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amdgpu_profile_help
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fi
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# 'tuned' has trouble running scripts with args - treats '/path/to/script.sh arg1' as one complete item
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# so, based on the active profile - run the right function
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read -r -d '' TUNED_PROFILE < /etc/tuned/active_profile
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case "$TUNED_PROFILE" in
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*-amdgpu-default)
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amdgpu_profile_reset
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;;
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*-amdgpu-overclock)
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amdgpu_profile_reset
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amdgpu_profile_overclock
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;;
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*-amdgpu-peak)
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# do everything the other profiles do... then set each clock table to their peak
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amdgpu_profile_reset
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amdgpu_profile_overclock
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echo '1' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_sclk
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echo '3' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_mclk
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echo '2' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_fclk
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echo '2' | tee /sys/class/drm/"${CARD}"/device/pp_dpm_socclk
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# if I understand correctly, 'power_dpm_force_performance_level' at 'profile_peak' achieves similar... but precludes some control
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;;
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*)
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amdgpu_profile_help
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;;
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esac
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