From c2233cdc98139d48da71a94eaecd4da4eebcfe15 Mon Sep 17 00:00:00 2001
From: AuxXxilium <info@auxxxilium.tech>
Date: Fri, 11 Oct 2024 23:30:35 +0200
Subject: [PATCH] cpufreqscaling: add back

Signed-off-by: AuxXxilium <info@auxxxilium.tech>
---
 cpufreqscaling/all/usr/sbin/scaling.sh | 49 ++++++++++++++++++++++++++
 cpufreqscaling/install.sh              | 47 ++++++++++++++++++++++++
 cpufreqscaling/manifest.yml            | 20 +++++++++++
 3 files changed, 116 insertions(+)
 create mode 100755 cpufreqscaling/all/usr/sbin/scaling.sh
 create mode 100755 cpufreqscaling/install.sh
 create mode 100644 cpufreqscaling/manifest.yml

diff --git a/cpufreqscaling/all/usr/sbin/scaling.sh b/cpufreqscaling/all/usr/sbin/scaling.sh
new file mode 100755
index 0000000..df747a6
--- /dev/null
+++ b/cpufreqscaling/all/usr/sbin/scaling.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2023 AuxXxilium <https://github.com/AuxXxilium>
+#
+# This is free software, licensed under the MIT License.
+# See /LICENSE for more information.
+#
+
+# Make things safer
+set -euo pipefail
+
+# Get cpu cores count minus 1, to allow maping from 0
+cpucorecount=$(cat /proc/cpuinfo | grep processor | wc -l)
+cpucorecount=$((cpucorecount - 1))
+error=0
+
+# Load the correct cpufreq module
+if [ "${1}" = "ondemand" ] || [ "${1}" = "conservative" ]; then
+  if [ -f "/usr/lib/modules/cpufreq_${1}.ko" ]; then
+    modprobe cpufreq_${1}
+    echo "CPUFreqScaling: cpufreq_${1} loaded"
+  else
+    echo "CPUFreqScaling: cpufreq_${1} not found"
+    error=1
+    break
+  fi
+fi
+# Deamonize the main function...
+for i in $(seq 0 ${cpucorecount}); do
+  governor=$(cat /sys/devices/system/cpu/cpu${i}/cpufreq/scaling_governor)
+  # Set correct cpufreq governor to allow frequency scaling
+  if [ "${governor}" != "${1}" ]; then
+    echo "${1}" >/sys/devices/system/cpu/cpu${i}/cpufreq/scaling_governor
+  fi
+done
+sleep 10
+# Check if the governor is set correctly
+for i in $(seq 0 ${cpucorecount}); do
+  governor=$(cat /sys/devices/system/cpu/cpu${i}/cpufreq/scaling_governor)
+  if [ "${governor}" = "${1}" ]; then
+    echo "CPUFreqScaling: Governor set to ${1}"
+  else
+    echo "CPUFreqScaling: Failed to set governor to ${1}"
+    error=1
+    break
+  fi
+done
+[ ${error} -eq 1 ] && exit 1
+exit 0
\ No newline at end of file
diff --git a/cpufreqscaling/install.sh b/cpufreqscaling/install.sh
new file mode 100755
index 0000000..81da22b
--- /dev/null
+++ b/cpufreqscaling/install.sh
@@ -0,0 +1,47 @@
+#!/usr/bin/env ash
+#
+# Copyright (C) 2023 AuxXxilium <https://github.com/AuxXxilium>
+#
+# This is free software, licensed under the MIT License.
+# See /LICENSE for more information.
+#
+
+if [ "${1}" = "late" ]; then
+  echo "Installing cpufreqscalingscaling - ${1}"
+  mkdir -p "/tmpRoot/usr/arc/addons/"
+  cp -vf "${0}" "/tmpRoot/usr/arc/addons/"
+
+  cp -vf /usr/sbin/scaling.sh /tmpRoot/usr/sbin/scaling.sh
+  [ ! -f "/tmpRoot/usr/bin/echo" ] && cp -vf /usr/bin/echo /tmpRoot/usr/bin/echo || true
+  cp -f /usr/lib/modules/acpi_cpufreq.ko /tmpRoot/usr/lib/modules/acpi_cpufreq.ko
+  [ "${2}" != "schedutil" ] && cp -vf /usr/lib/modules/cpufreq_${2}.ko /tmpRoot/usr/lib/modules/cpufreq_${2}.ko && modprobe cpufreq_${2} || true
+  mkdir -p "/tmpRoot/usr/lib/systemd/system"
+  DEST="/tmpRoot/usr/lib/systemd/system/cpufreqscaling.service"
+  cat <<EOF >${DEST}
+[Unit]
+Description=Enable CPU Freq scaling
+DefaultDependencies=no
+IgnoreOnIsolate=true
+After=multi-user.target
+After=udevrules.service
+
+[Service]
+User=root
+Type=simple
+Restart=on-failure
+RestartSec=10
+ExecStart=/usr/sbin/scaling.sh ${2}
+
+[Install]
+WantedBy=multi-user.target
+EOF
+    mkdir -vp /tmpRoot/usr/lib/systemd/system/multi-user.target.wants
+    ln -vsf /usr/lib/systemd/system/cpufreqscaling.service /tmpRoot/usr/lib/systemd/system/multi-user.target.wants/cpufreqscaling.service
+elif [ "${1}" = "uninstall" ]; then
+  echo "Installing cpufreqscalingscaling - ${1}"
+
+  rm -f "/tmpRoot/usr/lib/systemd/system/multi-user.target.wants/cpufreqscaling.service"
+  rm -f "/tmpRoot/usr/lib/systemd/system/cpufreqscaling.service"
+
+  rm -f /tmpRoot/usr/sbin/scaling.sh
+fi
\ No newline at end of file
diff --git a/cpufreqscaling/manifest.yml b/cpufreqscaling/manifest.yml
new file mode 100644
index 0000000..393eb81
--- /dev/null
+++ b/cpufreqscaling/manifest.yml
@@ -0,0 +1,20 @@
+version: 1
+name: cpufreqscaling
+description: "Enable CPU Freqscaling for DSM - Modify in Arc DSM Options"
+system: false
+beta: false
+target: system
+all:
+  install-script: "install.sh"
+  copy: "all"
+apollolake: true
+broadwell: true
+broadwellnk: true
+broadwellnkv2: true
+broadwellntbap: true
+denverton: true
+geminilake: true
+purley: true
+v1000: true
+r1000: true
+epyc7002: true
\ No newline at end of file