initial commit

ryzenadj.nix

@@ -0,0 +1,181 @@
+# RyzenAdj power tuning configuration
+# Provides power-tuning script for Minisforum V3 SE power profile management
+{ pkgs, ... }:
+
+let
+  # Power profiles (values in mW for power, °C for temp)
+  profiles = {
+    saver = {
+      stapm = 15000;
+      fast = 18000;
+      slow = 16000;
+      temp = 80;
+    };
+    balanced = {
+      stapm = 22500;
+      fast = 30000;
+      slow = 25000;
+      temp = 90;
+    };
+    performance = {
+      stapm = 30000;
+      fast = 40000;
+      slow = 35000;
+      temp = 100;
+    };
+    compile = {
+      stapm = 40000;
+      fast = 50000;
+      slow = 45000;
+      temp = 100;
+    };
+  };
+
+  configFile = pkgs.writeText "power-tuning-config.json" (builtins.toJSON profiles);
+
+  power-tuning = pkgs.writeShellScriptBin "power-tuning" ''
+    CONFIG_FILE="${configFile}"
+    COMPILE_FLAG="/tmp/.power-tuning-compile-mode"
+
+    # Read a profile from config
+    get_profile() {
+        local profile="$1"
+        ${pkgs.jq}/bin/jq -r ".$profile" "$CONFIG_FILE"
+    }
+
+    # Apply ryzenadj settings
+    apply_settings() {
+        local profile="$1"
+        local settings
+        settings=$(get_profile "$profile")
+
+        if [[ "$settings" == "null" ]]; then
+            echo "Error: Profile '$profile' not found in config"
+            return 1
+        fi
+
+        local stapm fast slow temp
+        stapm=$(echo "$settings" | ${pkgs.jq}/bin/jq -r '.stapm')
+        fast=$(echo "$settings" | ${pkgs.jq}/bin/jq -r '.fast')
+        slow=$(echo "$settings" | ${pkgs.jq}/bin/jq -r '.slow')
+        temp=$(echo "$settings" | ${pkgs.jq}/bin/jq -r '.temp')
+
+        echo "Applying $profile: STAPM=''${stapm}mW Fast=''${fast}mW Slow=''${slow}mW Temp=''${temp}°C"
+
+        ${pkgs.ryzenadj}/bin/ryzenadj \
+            --stapm-limit="$stapm" \
+            --fast-limit="$fast" \
+            --slow-limit="$slow" \
+            --tctl-temp="$temp" \
+            2>&1
+    }
+
+    # Get current power profile from power-profiles-daemon
+    get_current_ppd_profile() {
+        local profile
+        profile=$(${pkgs.power-profiles-daemon}/bin/powerprofilesctl get 2>/dev/null)
+
+        case "$profile" in
+            "power-saver") echo "saver" ;;
+            "balanced") echo "balanced" ;;
+            "performance") echo "performance" ;;
+            *) echo "balanced" ;;
+        esac
+    }
+
+    # Check if compile mode is active
+    is_compile_mode() {
+        [[ -f "$COMPILE_FLAG" ]]
+    }
+
+    # Main command handling
+    case "''${1:-apply}" in
+        apply)
+            if is_compile_mode; then
+                echo "Compile mode active, using compile profile"
+                apply_settings "compile"
+            else
+                profile=$(get_current_ppd_profile)
+                echo "Current PPD profile: $profile"
+                apply_settings "$profile"
+            fi
+            ;;
+
+        compile-on)
+            touch "$COMPILE_FLAG"
+            echo "Compile mode enabled"
+            apply_settings "compile"
+            ;;
+
+        compile-off)
+            rm -f "$COMPILE_FLAG"
+            echo "Compile mode disabled"
+            profile=$(get_current_ppd_profile)
+            apply_settings "$profile"
+            ;;
+
+        status)
+            echo "=== Power Tuning Status ==="
+            echo "Config file: $CONFIG_FILE"
+            echo "PPD Profile: $(${pkgs.power-profiles-daemon}/bin/powerprofilesctl get 2>/dev/null || echo 'unknown')"
+            echo "Compile mode: $(is_compile_mode && echo 'ON' || echo 'OFF')"
+            echo ""
+            echo "Current presets:"
+            ${pkgs.jq}/bin/jq '.' "$CONFIG_FILE"
+            ;;
+
+        *)
+            echo "Usage: power-tuning {apply|compile-on|compile-off|status}"
+            exit 1
+            ;;
+    esac
+  '';
+in
+{
+  # Kernel module for SMU access
+  hardware.cpu.amd.ryzen-smu.enable = true;
+
+  # Permissions for ryzenadj to access SMU
+  systemd.tmpfiles.rules = [
+    "z /sys/kernel/ryzen_smu_drv/smn 0660 root wheel -"
+    "z /sys/kernel/ryzen_smu_drv/smu_args 0660 root wheel -"
+    "z /sys/kernel/ryzen_smu_drv/mp1_smu_cmd 0660 root wheel -"
+    "z /sys/kernel/ryzen_smu_drv/rsmu_cmd 0660 root wheel -"
+  ];
+
+  environment.systemPackages = [
+    power-tuning
+    pkgs.ryzenadj
+  ];
+
+  # Apply power tuning on boot and when power profile changes
+  systemd.services.power-tuning = {
+    description = "Apply RyzenAdj power tuning";
+    wantedBy = [ "multi-user.target" ];
+    after = [ "power-profiles-daemon.service" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${power-tuning}/bin/power-tuning apply";
+    };
+  };
+
+  # Re-apply when power profile changes
+  systemd.services.power-tuning-on-profile-change = {
+    description = "Apply RyzenAdj on power profile change";
+    after = [ "power-profiles-daemon.service" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${power-tuning}/bin/power-tuning apply";
+    };
+  };
+
+  # Path trigger to watch for profile changes
+  systemd.paths.power-tuning-watch = {
+    description = "Watch for power profile changes";
+    wantedBy = [ "multi-user.target" ];
+    pathConfig = {
+      PathChanged = "/sys/firmware/acpi/platform_profile";
+      Unit = "power-tuning-on-profile-change.service";
+    };
+  };
+}