184 lines
6.2 KiB
Bash
184 lines
6.2 KiB
Bash
#=============================================================================
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# Copyright (c) 2019-2022 Qualcomm Technologies, Inc.
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# All Rights Reserved.
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# Confidential and Proprietary - Qualcomm Technologies, Inc.
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#
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# Copyright (c) 2009-2012, 2014-2019, 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 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 and < 2GB devices .
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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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function configure_read_ahead_kb_values() {
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MemTotalStr=`cat /proc/meminfo | grep MemTotal`
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MemTotal=${MemTotalStr:16:8}
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dmpts=$(ls /sys/block/*/queue/read_ahead_kb | grep -e dm -e mmc -e sd)
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# dmpts holds below read_ahead_kb nodes if exists:
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# /sys/block/dm-0/queue/read_ahead_kb to /sys/block/dm-10/queue/read_ahead_kb
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# /sys/block/sda/queue/read_ahead_kb to /sys/block/sdh/queue/read_ahead_kb
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# Set 128 for <= 4GB &
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# set 512 for >= 5GB targets.
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if [ $MemTotal -le 4194304 ]; then
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ra_kb=128
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else
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ra_kb=512
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fi
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if [ -f /sys/block/mmcblk0/bdi/read_ahead_kb ]; then
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echo $ra_kb > /sys/block/mmcblk0/bdi/read_ahead_kb
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fi
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if [ -f /sys/block/mmcblk0rpmb/bdi/read_ahead_kb ]; then
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echo $ra_kb > /sys/block/mmcblk0rpmb/bdi/read_ahead_kb
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fi
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for dm in $dmpts; do
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if [ `cat $(dirname $dm)/../removable` -eq 0 ]; then
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echo $ra_kb > $dm
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fi
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done
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}
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function configure_memory_parameters() {
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# Set Memory parameters.
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#
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# Set per_process_reclaim tuning parameters
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# All targets will use vmpressure range 50-70,
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# All targets will use 512 pages swap size.
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#
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# Set Low memory killer minfree parameters
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# 32 bit Non-Go, all memory configurations will use 15K series
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# 32 bit Go, all memory configurations will use uLMK + Memcg
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# 64 bit will use Google default LMK series.
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#
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# Set ALMK parameters (usually above the highest minfree values)
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# vmpressure_file_min threshold is always set slightly higher
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# than LMK minfree's last bin value for all targets. It is calculated as
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# vmpressure_file_min = (last bin - second last bin ) + last bin
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#
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# Set allocstall_threshold to 0 for all targets.
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#
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configure_zram_parameters
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configure_read_ahead_kb_values
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echo 100 > /proc/sys/vm/swappiness
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# Disable periodic kcompactd wakeups. We do not use THP, so having many
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# huge pages is not as necessary.
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echo 0 > /proc/sys/vm/compaction_proactiveness
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# With THP enabled, the kernel greatly increases min_free_kbytes over its
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# default value. Disable THP to prevent resetting of min_free_kbytes
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# value during online/offline pages.
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if [ -f /sys/kernel/mm/transparent_hugepage/enabled ]; then
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echo never > /sys/kernel/mm/transparent_hugepage/enabled
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fi
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MemTotalStr=`cat /proc/meminfo | grep MemTotal`
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MemTotal=${MemTotalStr:16:8}
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let RamSizeGB="( $MemTotal / 1048576 ) + 1"
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# Set the min_free_kbytes to standard kernel value
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if [ $RamSizeGB -ge 8 ]; then
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echo 11584 > /proc/sys/vm/min_free_kbytes
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elif [ $RamSizeGB -ge 4 ]; then
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echo 8192 > /proc/sys/vm/min_free_kbytes
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elif [ $RamSizeGB -ge 2 ]; then
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echo 5792 > /proc/sys/vm/min_free_kbytes
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else
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echo 4096 > /proc/sys/vm/min_free_kbytes
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fi
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}
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configure_memory_parameters
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if [ -f /sys/devices/soc0/chip_family ]; then
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chipfamily=`cat /sys/devices/soc0/chip_family`
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fi
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case "$chipfamily" in
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"0x74")
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/vendor/bin/sh /vendor/bin/init.kernel.post_boot-taro.sh
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;;
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"0x7B"|"0x7b")
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/vendor/bin/sh /vendor/bin/init.kernel.post_boot-diwali.sh
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;;
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"0x82")
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/vendor/bin/sh /vendor/bin/init.kernel.post_boot-cape.sh
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;;
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*)
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echo "***WARNING***: Invalid chip family\n\t No postboot settings applied!!\n"
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;;
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esac
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