cpufreq: add CPU Scaling adjustment tool

package/lean/cpufreq/Makefile

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+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (C) 2024 ImmortalWrt.org
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=cpufreq
+PKG_RELEASE:=1
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/cpufreq
+  TITLE:=CPU Frequency Scaling adjustment tool
+  DEPENDS:=@(arm||aarch64)
+  PKGARCH:=all
+endef
+
+define Build/Compile
+endef
+
+define Package/cpufreq/install
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) $(CURDIR)/files/cpufreq.config $(1)/etc/config/cpufreq
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) $(CURDIR)/files/cpufreq.init $(1)/etc/init.d/cpufreq
+	$(INSTALL_DIR) $(1)/etc/uci-defaults
+	$(INSTALL_BIN) $(CURDIR)/files/cpufreq.uci $(1)/etc/uci-defaults/10-cpufreq
+endef
+
+$(eval $(call BuildPackage,cpufreq))

package/lean/cpufreq/files/cpufreq.config

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+
+config settings 'cpufreq'
+
+config settings 'global'
+

package/lean/cpufreq/files/cpufreq.init

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+#!/bin/sh /etc/rc.common
+
+START=15
+USE_PROCD=1
+
+NAME="cpufreq"
+CPUFREQ_PATH="/sys/devices/system/cpu/cpufreq"
+
+extra_command "get_policies" "Get CPU scaling governors and frequencies"
+
+get_policies() {
+	json_init
+	for policy in $(ls -d "$CPUFREQ_PATH"/policy[0-9]* 2>"/dev/null"); do
+		[ -s "$policy/scaling_available_frequencies" ] || continue
+		json_add_object "$(basename "$policy")"
+		json_add_string "index" "$(basename "$policy" | grep -Eo "[0-9]*$")"
+		json_add_string "cpus" "$(cat "$policy/affected_cpus")"
+		json_add_array "freqs"
+		for freq in $(cat "$policy/scaling_available_frequencies"); do
+			json_add_string "" "$freq"
+		done
+		json_close_array
+		json_add_array "governors"
+		for governor in $(cat "$policy/scaling_available_governors"); do
+			json_add_string "" "$governor"
+		done
+		json_close_array
+		json_close_object
+	done
+	json_dump
+}
+
+write_cpufreq_config() {
+	local value
+	config_get value "$NAME" "$1"
+	[ -z "$value" ] || echo -n "$value" > "$2"
+}
+
+start_service() {
+	config_load "$NAME"
+
+	for i in $(ls -d "$CPUFREQ_PATH"/policy[0-9]* 2>"/dev/null" | grep -Eo "[0-9]*$")
+	do
+		[ -z "$(config_get "$NAME" "governor$i")" ] && return
+
+		write_cpufreq_config "governor$i" "$CPUFREQ_PATH/policy$i/scaling_governor"
+		write_cpufreq_config "minfreq$i" "$CPUFREQ_PATH/policy$i/scaling_min_freq"
+		write_cpufreq_config "maxfreq$i" "$CPUFREQ_PATH/policy$i/scaling_max_freq"
+		if [ "$(config_get "$NAME" "governor$i")" = "ondemand" ]; then
+			write_cpufreq_config "sdfactor$i" "$CPUFREQ_PATH/ondemand/sampling_down_factor"
+			write_cpufreq_config "upthreshold$i" "$CPUFREQ_PATH/ondemand/up_threshold"
+		fi
+	done
+}
+
+service_triggers() {
+	procd_add_reload_trigger "$NAME"
+}

package/lean/cpufreq/files/cpufreq.uci

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+#!/bin/sh
+
+uci_write_config() {
+	uci -q set "cpufreq.cpufreq.governor$1"="$2"
+	uci -q set "cpufreq.cpufreq.minfreq$1"="$3"
+	uci -q set "cpufreq.cpufreq.maxfreq$1"="$4"
+	[ -n "$5" ] && uci -q set "cpufreq.cpufreq.sdfactor$1"="$5"
+	[ -n "$6" ] && uci -q set "cpufreq.cpufreq.upthreshold$1"="$6"
+	uci -q commit cpufreq
+}
+
+[ "$(uci -q get cpufreq.global.set)" -eq "1" ] && exit 0
+
+CPU_FREQS="$(cat '/sys/devices/system/cpu/cpufreq/policy0/scaling_available_frequencies')"
+CPU_MIN_FREQ="$(cat '/sys/devices/system/cpu/cpufreq/policy0/scaling_min_freq')"
+CPU_MAX_FREQ="$(cat '/sys/devices/system/cpu/cpufreq/policy0/scaling_max_freq')"
+CPU_POLICYS="$(find '/sys/devices/system/cpu/cpufreq/policy'* -maxdepth 0 | grep -Eo '[0-9]+')"
+
+source "/etc/openwrt_release"
+case "$DISTRIB_TARGET" in
+	"bcm27xx/bcm2710"|\
+	"bcm27xx/bcm2711")
+		uci_write_config 0 ondemand 600000 "$CPU_MAX_FREQ" 10 50
+		;;
+	"ipq40xx/generic")
+		uci_write_config 0 performance 200000 "$CPU_MAX_FREQ"
+		;;
+	"ipq806x/generic")
+		uci_write_config 0 performance 600000 "$CPU_MAX_FREQ"
+		# IPQ8064/5
+		echo "$CPU_POLICYS" | grep -q "1" && uci_write_config 1 performance 600000 1200000
+		;;
+	"mediatek/mt7622")
+		uci_write_config 0 ondemand 600000 1350000 10 50
+		;;
+	"qualcommax/ipq60xx"|\
+	"qualcommax/ipq807x")
+		uci_write_config 0 schedutil "$CPU_MIN_FREQ" "$CPU_MAX_FREQ"
+		;;
+	"rockchip/armv8")
+		if echo "$CPU_POLICYS" | grep -q "6"; then
+			# RK3588/S
+			uci_write_config 0 schedutil 1008000 1800000
+			uci_write_config 4 schedutil 816000 2208000
+			uci_write_config 6 schedutil 816000 2208000
+		elif echo "$CPU_POLICYS" | grep -q "4"; then
+			# RK3399
+			uci_write_config 0 schedutil 600000 1608000
+			uci_write_config 4 schedutil 600000 2016000
+		else
+			if ! echo "$CPU_FREQS" | grep -q "1992000"; then
+				# RK3328
+				CPU_MAX_FREQ="1512000"
+			fi
+			uci_write_config 0 schedutil 816000 "$CPU_MAX_FREQ"
+		fi
+		;;
+	"sunxi/cortexa53")
+		if echo "$CPU_FREQS" | grep -q "1800000"; then
+			# H6
+			uci_write_config 0 schedutil "888000" "$CPU_MAX_FREQ"
+		elif echo "$CPU_FREQS" | grep -q "1512000"; then
+			# H616/8
+			uci_write_config 0 schedutil "936000" "1512000"
+		elif echo "$CPU_FREQS" | grep -q "1296000"; then
+			# H5
+			uci_write_config 0 ondemand "$CPU_MIN_FREQ" "1296000" 10 50
+		else
+			# A64
+			uci_write_config 0 ondemand "$CPU_MIN_FREQ" "$CPU_MAX_FREQ" 10 50
+		fi
+		;;
+esac
+
+exit 0