110 lines
5.2 KiB
Django/Jinja
110 lines
5.2 KiB
Django/Jinja
#!/bin/bash
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# script for tuned AMDGPU clock control
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# configures GPU power/clock characteristics
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# clocks/power in 3D are dynamic based on need/usage
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#
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# for 'amdgpu-default' tuned profiles, this will reset the characteristics to default
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# for others this will apply overclocking settings -- leaving clock choices to the associated power profile (eg: VR)
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#
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# rendered by Ansible with environment-appropriate values:
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# card #, eg: card0
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# path to discovered sysfs device files (power/clock/voltage control)
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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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{# done this way to avoid issues with the card number possibly shifting after playbook run #}
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# dynamically determine the connected GPU using the DRM subsystem
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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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# enable THP; profile enables the 'vm.compaction_proactiveness' sysctl
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# improves allocation latency
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echo 'always' | tee /sys/kernel/mm/transparent_hugepage/enabled
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{# begin the templated script for 'default' profiles to reset state #}
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{% if 'default' in profile_name %}
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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={{ gpu_power_multi.default }} '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_POWER_SAVING_NUM=$(/usr/bin/awk '$0 ~ /POWER_SAVING.*:/ {print $1}' <<< "$PROFILE_MODES")
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# reset power/clock heuristics to power-saving
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echo "${PROF_POWER_SAVING_NUM}" | tee /sys/class/drm/"${CARD}"/device/pp_power_profile_mode
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{% else %}
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{# begin the templated script for 'overclocked' AMD GPU profiles based on the existing tuned profiles #}
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# set the minimum GPU clock - for best performance, this should be near the maximum
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# RX6000 series power management *sucks*
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echo 's 0 {{ gpu_clock_min }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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# set the maximum GPU clock
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echo 's 1 {{ gpu_clock_max }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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# set the GPU *memory* clock
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# normally this would appear disregarded, memory clocked at the minimum allowed by the overdrive (OD) range
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# it follows the core clock; if both 0/1 profiles for _it_ are high enough, the memory will follow
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echo 'm 1 {{ gpumem_clock_static }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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{% if gpu_mv_offset is defined %}
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# offset GPU voltage {{ gpu_mv_offset }}mV
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echo 'vo {{ gpu_mv_offset }}' | tee /sys/class/drm/"${CARD}"/device/pp_od_clk_voltage
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{% endif %}
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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={{ gpu_power_multi.overclock }} 'BEGIN {printf "%.0f", (m*n)}')
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echo "$POWER_LIM_OC" | tee "${HWMON_DIR}/power1_cap"
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# pp_dpm_*clk settings are unintuitive, giving profiles that may be used
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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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# 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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# note 4/8/2023: instead of 'manual'... try dealing with broken power management, force clocks to high
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# ref: https://gitlab.freedesktop.org/drm/amd/-/issues/1500
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# followup: doesn't work that well in practice, still flaky on clocks/frame times
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#echo 'high' | tee /sys/class/drm/"${CARD}"/device/power_dpm_force_performance_level
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{% endif %}
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