From 28e54cf75557ca1c55ea7d21aac8c95c2c910676 Mon Sep 17 00:00:00 2001
From: Divyanand Rangu <drangu@codeaurora.org>
Date: Tue, 31 Mar 2020 19:35:33 +0530
Subject: [PATCH] post_boot: updating post_boot for <=2 GB devices

Removing the check of 1GB RAM while enabling
low_ram target specific configurations to enable them
for 2GB RAM targets as well.
Updating ZRAM size to 75% of RAM for <2GB devices

Change-Id: I8d5341a4397cd20f2c59e7396801fcbea7fe5b73
---
 rootdir/bin/init.qcom.post_boot.sh | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/rootdir/bin/init.qcom.post_boot.sh b/rootdir/bin/init.qcom.post_boot.sh
index deb53dc7..9147696e 100644
--- a/rootdir/bin/init.qcom.post_boot.sh
+++ b/rootdir/bin/init.qcom.post_boot.sh
@@ -546,12 +546,19 @@ function configure_zram_parameters() {
     # Zram disk - 75% for Go devices.
     # For 512MB Go device, size = 384MB, set same for Non-Go.
     # For 1GB Go device, size = 768MB, set same for Non-Go.
-    # For >=2GB Non-Go devices, size = 50% of RAM size. Limit the size to 4GB.
+    # For 2GB Go device, size = 1536MB, set same for Non-Go.
+    # For >2GB Non-Go devices, size = 50% of RAM size. Limit the size to 4GB.
     # And enable lz4 zram compression for Go targets.
 
     RamSizeGB=`echo "($MemTotal / 1048576 ) + 1" | bc`
-    zRamSizeBytes=`echo "$RamSizeGB * 1024 * 1024 * 1024 / 2" | bc`
-    zRamSizeMB=`echo "$RamSizeGB * 1024 / 2" | bc`
+    if [ $RamSizeGB -le 2 ]; then
+        zRamSizeBytes=`echo "$RamSizeGB * 1024 * 1024 * 1024 * 3 / 4" | bc`
+        zRamSizeMB=`echo "$RamSizeGB * 1024 * 3 / 4" | bc`
+    else
+        zRamSizeBytes=`echo "$RamSizeGB * 1024 * 1024 * 1024 / 2" | bc`
+        zRamSizeMB=`echo "$RamSizeGB * 1024 / 2" | bc`
+    fi
+
     # use MB avoid 32 bit overflow
     if [ $zRamSizeMB -gt 4096 ]; then
         zRamSizeBytes=4294967296
@@ -565,13 +572,7 @@ function configure_zram_parameters() {
         if [ -f /sys/block/zram0/use_dedup ]; then
             echo 1 > /sys/block/zram0/use_dedup
         fi
-        if [ $MemTotal -le 524288 ]; then
-            echo 402653184 > /sys/block/zram0/disksize
-        elif [ $MemTotal -le 1048576 ]; then
-            echo 805306368 > /sys/block/zram0/disksize
-        else
-            echo $zRamSizeBytes > /sys/block/zram0/disksize
-        fi
+        echo $zRamSizeBytes > /sys/block/zram0/disksize
 
         # ZRAM may use more memory than it saves if SLAB_STORE_USER
         # debug option is enabled.
@@ -671,11 +672,9 @@ if [ "$ProductName" == "msmnile" ] || [ "$ProductName" == "kona" ] || [ "$Produc
       echo 100 > /proc/sys/vm/swappiness
 else
     arch_type=`uname -m`
-    MemTotalStr=`cat /proc/meminfo | grep MemTotal`
-    MemTotal=${MemTotalStr:16:8}
 
     # Set parameters for 32-bit Go targets.
-    if [ $MemTotal -le 1048576 ] && [ "$low_ram" == "true" ]; then
+    if [ "$low_ram" == "true" ]; then
         # Disable KLMK, ALMK, PPR & Core Control for Go devices
         echo 0 > /sys/module/lowmemorykiller/parameters/enable_lmk
         echo 0 > /sys/module/lowmemorykiller/parameters/enable_adaptive_lmk