hosts/monolith/amdgpu.nix

@@ -27,13 +27,6 @@ in
     wantedBy = [ "multi-user.target" ];
   };
 
-  hardware.amdgpu = {
-    overdrive = {
-      enable = true;
-      ppfeaturemask = "0xffffffff";
-    };
-  };
-
   hardware.graphics.enable32Bit = true;
 
   hardware.graphics.extraPackages = with pkgs; [

scripts/amd-fan-control

@@ -2,144 +2,85 @@
 
 set -e
 
+DEVICE="$1" # eg: /sys/class/drm/card1/device
+HWMON=$(echo "$DEVICE"/hwmon/hwmon*)
+
+exit() {
+    echo "Setting controll to auto" >&2
+    echo 2 > "$HWMON/pwm1_enable"
+}
+
+trap exit EXIT INT
+
 bail() {
     echo "Error: $@" >&2
     echo "Exiting..." >&2
     exit 1
 }
 
-map_range() {
+if ! [ -d "$HWMON" ]; then
-    VALUE="$1"
+    bail "Invalid HWMON"
-    MIN_INPUT="$2"
+fi
-    MAX_INPUT="$3"
-    INPUT_RANGE=$(( $MAX_INPUT - $MIN_INPUT ))
-    MIN_OUTPUT="$4"
-    MAX_OUTPUT="$5"
-    OUTPUT_RANGE=$(( $MAX_OUTPUT - $MIN_OUTPUT ))
 
-    echo $(( ($VALUE - $MIN_INPUT) * $OUTPUT_RANGE / $INPUT_RANGE  + $MIN_OUTPUT ))
+TEMP_INPUT="$HWMON/temp2_input"
-}
 
-clamp() {
+if ! [ -f $TEMP_INPUT ]; then
-    VALUE="$1"
+    bail "Invalid TEMP_INPUT"
+fi
 
-    MIN="$2"
+TEMP_MIN="$2"
-    MAX="$3"
+TEMP_MAX="$3"
 
-    VALUE=$VALUE
+if [ -z "$TEMP_MIN" ];then
-    if [ "$VALUE" -gt $MAX ]; then
+  bail "No minimum temperature provided"
-        VALUE=$MAX
+fi
-    elif [ "$VALUE" -lt $MIN ]; then
-        VALUE=$MIN
-    fi
 
-    echo $VALUE
+if [ -z "$TEMP_MAX" ];then
-}
+  bail "No maximum temperature provided"
+fi
 
-cleanup() {
+PWM_MIN_PCT="$4"
-    echo "Setting controll to auto" >&2
+PWM_MAX_PCT="$5"
-    if test -f "$HWMON/pwm1_enable"; then
-        echo 2 > "$HWMON/pwm1_enable"
-    fi
-}
-trap cleanup EXIT INT
 
-usage() {
+if [ -z "$PWM_MIN_PCT" ];then
-    echo "Usage: $0 <device> <min-temp> <max-temp> <min-fan> <max-fan>" >&2
+  bail "No minimum fan speed % not provided"
-    echo "Example: $0 /sys/class/drm/card1/device 60 100 10 80" >&2
+fi
-    exit 1
-}
 
-parse_cli() {
+if [ -z "$PWM_MAX_PCT" ];then
-    if test -n "$AMDGPU_FAN_CRONTROL_DEBUG"; then
+  bail "No maximum fan speed % not provided"
-        echo parse_cli "$@" >&2
+fi
-    fi
 
-    DEVICE="$1" # eg: /sys/class/drm/card1/device
+PWM_MIN="$(( $PWM_MIN_PCT * 255 / 100))"
-    HWMON=$(echo "$DEVICE"/hwmon/hwmon*)
+PWM_MAX="$(( $PWM_MAX_PCT * 255 / 100))"
-    TEMP_INPUT="$HWMON/temp2_input"
 
-    TEMP_MIN="$2"
+echo "Running..." >&2
-    TEMP_MAX="$3"
 
-    PWM_MIN_PCT="$4"
+echo "TEMP_MIN=$TEMP_MIN°C"
-    PWM_MAX_PCT="$5"
+echo "TEMP_MAX=$TEMP_MAX°C"
-}
+echo "FAN_MIN=$PWM_MIN_PCT%"
+echo "FAN_MAX=$PWM_MAX_PCT%"
 
-validate_variables() {
+echo 1 > "$HWMON/pwm1_enable"
-    if ! [ -d "$HWMON" ]; then
-        bail "Invalid drm-device: '$HWMON' is not a directory"
-    fi
 
-    if ! [ -f "$TEMP_INPUT" ]; then
+PREV=0
-        bail "Error: Could not find hotspot temperature at '$TEMP_INPUT'"
-    fi
 
-    if [ -z "$TEMP_MIN" -o -z "$TEMP_MAX" -o -z "$PWM_MIN_PCT" -o -z "$PWM_MAX_PCT" ];then
+while true; do
-        usage
-    fi
-}
-
-setup() {
-    PWM_MIN=$(map_range $PWM_MIN_PCT 0 100 0 255)
-    PWM_MAX=$(map_range $PWM_MAX_PCT 0 100 0 255)
-
-    echo "Running..." >&2
-
-    if test -n "$AMDGPU_FAN_CRONTROL_DEBUG"; then
-        echo "TEMP_MIN=$TEMP_MIN°C" >&2
-        echo "TEMP_MAX=$TEMP_MAX°C" >&2
-        echo "FAN_MIN=$PWM_MIN_PCT% (PWM=$PWM_MIN)" >&2
-        echo "FAN_MAX=$PWM_MAX_PCT% (PWM=$PWM_MAX)" >&2
-    fi
-
-    # Set fan control mode to manual, this will be reverted in the cleanup trap
-    echo 1 > "$HWMON/pwm1_enable"
-
-    PREV_PWM=0
-}
-
-main_loop() {
     TEMPERATURE_RAW=$(cat "$TEMP_INPUT")
-    TEMPERATURE="$(( $TEMPERATURE_RAW / 1000 ))" # 60_000 = 60°C
+    TEMPERATURE="$(( $TEMPERATURE_RAW / 1000 ))"
+    # Remap from a number between 60_000..90_000 to 0..255
+    PWM=$(( ($TEMPERATURE - $TEMP_MIN) * $PWM_MAX / ($TEMP_MAX - $TEMP_MIN) ))
 
-    # Calculate the fan speed we would want to reach given infinite time
+    if [ "$PWM" -gt $PWM_MAX ]; then
-    TARGET_PWM=$(map_range $TEMPERATURE $TEMP_MIN $TEMP_MAX $PWM_MIN $PWM_MAX)
+        PWM=$PWM_MAX
-
+    elif [ "$PWM" -lt $PWM_MIN ]; then
-    # Calculate an appropriate amount to "walk" in the direction of target fan speed
+        PWM=$PWM_MIN
-    DIFFERENCE=$(( $TARGET_PWM - $PREV_PWM ))
-    ADJUSTMENT=$(( $DIFFERENCE * 20 / 100 ))
-
-    NEXT_PWM=$(( $PREV_PWM + $ADJUSTMENT ))
-
-    NEXT_PWM=$(clamp $NEXT_PWM $PWM_MIN $PWM_MAX)
-    NEXT_PWM_PCT=$(map_range $NEXT_PWM 0 255 0 100 )
-
-    if test -n "$AMDGPU_FAN_CRONTROL_DEBUG"; then
-        for var in \
-            "Temperature=$TEMPERATURE°C" \
-            "Fan speed=$NEXT_PWM_PCT%" \
-        ; do
-            echo -en "$var\t"
-        done
-        echo
     fi
 
-    # Apply the new fan speed
+    AVG="$(( ($PWM * 20 + $PREV * 80) / 100 ))"
-    echo "$NEXT_PWM" > "$HWMON/pwm1"
 
-    # Wait for next iteratino
+    echo "$AVG"
-    PREV_PWM="$NEXT_PWM"
+
+    echo "$AVG" > "$HWMON/pwm1"
+    PREV="$AVG"
     sleep .1s
-}
+done
-
-main() {
-    parse_cli "$@"
-    validate_variables
-    setup
-    while true; do
-        main_loop
-    done
-}
-
-main "$@"

system/gaming.nix

@@ -60,6 +60,12 @@
       };
     };
 
-    programs.corectrl.enable = true;
+    programs.corectrl = {
+      enable = true;
+      gpuOverclock = {
+        enable = true;
+        ppfeaturemask = "0xffffffff";
+      };
+    };
   };
 }

user/home.nix

@@ -44,7 +44,7 @@
     ./gnome.nix
     ./thunar.nix
     ./xdg-dirs.nix
-    inputs.nix-index-database.homeModules.nix-index
+    inputs.nix-index-database.hmModules.nix-index
     ../settings
     ./powerplay-led-idle.nix
     ./rm-target.nix