b6586d49a7
Signed-off-by: Deokgyu Yang <secugyu@gmail.com> Change-Id: I4018655b8df1a338efb91c0f8178ec58c987c367
110 lines
4.2 KiB
Bash
Executable file
110 lines
4.2 KiB
Bash
Executable file
#! /vendor/bin/sh
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# Copyright (c) 2012-2013, 2016-2018, The Linux Foundation. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of The Linux Foundation nor
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# the names of its contributors may be used to endorse or promote
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# products derived from this software without specific prior written
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# permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Function from LineageOS/android_device_oneplus_oneplus3
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function configure_zram_parameters() {
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MemTotalStr=`cat /proc/meminfo | grep MemTotal`
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MemTotal=${MemTotalStr:16:8}
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low_ram=`getprop ro.config.low_ram`
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# Zram disk - 75% for Go devices.
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# For 512MB Go device, size = 384MB, set same for Non-Go.
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# For 1GB Go device, size = 768MB, set same for Non-Go.
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# For 2GB Go device, size = 1536MB, set same for Non-Go.
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# For >2GB Non-Go devices, size = 50% of RAM size. Limit the size to 4GB.
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# And enable lz4 zram compression for Go targets.
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let RamSizeGB="( $MemTotal / 1048576 ) + 1"
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diskSizeUnit=M
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if [ $RamSizeGB -le 2 ]; then
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let zRamSizeMB="( $RamSizeGB * 1024 ) * 3 / 4"
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else
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let zRamSizeMB="( $RamSizeGB * 1024 ) / 2"
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fi
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# use MB avoid 32 bit overflow
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if [ $zRamSizeMB -gt 4096 ]; then
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let zRamSizeMB=4096
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fi
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if [ "$low_ram" == "true" ]; then
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echo lz4 > /sys/block/zram0/comp_algorithm
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fi
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if [ -f /sys/block/zram0/disksize ]; then
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if [ -f /sys/block/zram0/use_dedup ]; then
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echo 1 > /sys/block/zram0/use_dedup
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fi
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echo "$zRamSizeMB""$diskSizeUnit" > /sys/block/zram0/disksize
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# ZRAM may use more memory than it saves if SLAB_STORE_USER
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# debug option is enabled.
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if [ -e /sys/kernel/slab/zs_handle ]; then
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echo 0 > /sys/kernel/slab/zs_handle/store_user
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fi
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if [ -e /sys/kernel/slab/zspage ]; then
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echo 0 > /sys/kernel/slab/zspage/store_user
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fi
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mkswap /dev/block/zram0
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swapon /dev/block/zram0 -p 32758
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fi
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}
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# Let kernel know our image version/variant/crm_version
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if [ -f /sys/devices/soc0/select_image ]; then
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image_version="10:"
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image_version+=`getprop ro.build.id`
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image_version+=":"
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image_version+=`getprop ro.build.version.incremental`
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image_variant=`getprop ro.product.name`
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image_variant+="-"
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image_variant+=`getprop ro.build.type`
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oem_version=`getprop ro.build.version.codename`
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echo 10 > /sys/devices/soc0/select_image
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echo $image_version > /sys/devices/soc0/image_version
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echo $image_variant > /sys/devices/soc0/image_variant
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echo $oem_version > /sys/devices/soc0/image_crm_version
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fi
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# Change console log level as per console config property
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console_config=`getprop persist.console.silent.config`
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case "$console_config" in
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"1")
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echo "Enable console config to $console_config"
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echo 0 > /proc/sys/kernel/printk
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;;
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*)
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echo "Enable console config to $console_config"
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;;
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esac
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# Enable ZRAM
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configure_zram_parameters
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