From 884a19ba6eed71315627784b33812c48c7fd9d6d Mon Sep 17 00:00:00 2001
From: Louis Popi <theh2o64@gmail.com>
Date: Mon, 20 Feb 2017 09:47:23 +0100
Subject: msm8916-common: Use CAF Memory configuration script

Change-Id: I9f38d9176c646f7951203f626b82dfbd251ed3b9
---
 product/init.mk                        |  1 +
 rootdir/Android.mk                     |  7 +++
 rootdir/etc/init.qcom.mem.sh           | 84 ++++++++++++++++++++++++++++++++++
 rootdir/etc/init.qcom.power_msm8916.rc |  2 +
 rootdir/etc/init.qcom.power_msm8939.rc |  9 +---
 rootdir/etc/init.qcom.rc               |  4 ++
 6 files changed, 100 insertions(+), 7 deletions(-)
 create mode 100755 rootdir/etc/init.qcom.mem.sh

diff --git a/product/init.mk b/product/init.mk
index 069c202..f3744ec 100644
--- a/product/init.mk
+++ b/product/init.mk
@@ -1,6 +1,7 @@
 # Init scripts
 PRODUCT_PACKAGES += \
     init.qcom.rc \
+    init.qcom.mem.sh \
     init.qcom.power.rc \
     init.qcom.ssr.rc \
     init.recovery.qcom.rc \
diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index 8cd0b4f..922e6e1 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -9,6 +9,13 @@ LOCAL_MODULE_CLASS := ETC
 LOCAL_SRC_FILES    := etc/init.qcom.bt.sh
 include $(BUILD_PREBUILT)
 
+include $(CLEAR_VARS)
+LOCAL_MODULE       := init.qcom.mem.sh
+LOCAL_MODULE_TAGS  := optional eng
+LOCAL_MODULE_CLASS := ETC
+LOCAL_SRC_FILES    := etc/init.qcom.mem.sh
+include $(BUILD_PREBUILT)
+
 # Init scripts
 
 include $(CLEAR_VARS)
diff --git a/rootdir/etc/init.qcom.mem.sh b/rootdir/etc/init.qcom.mem.sh
new file mode 100755
index 0000000..743e599
--- /dev/null
+++ b/rootdir/etc/init.qcom.mem.sh
@@ -0,0 +1,84 @@
+#!/system/bin/sh
+# Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of The Linux Foundation nor
+#       the names of its contributors may be used to endorse or promote
+#       products derived from this software without specific prior written
+#       permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+# Set Memory paremeters.
+#
+# Set per_process_reclaim tuning parameters
+# 2GB 64-bit will have aggressive settings when compared to 1GB 32-bit
+# 1GB and less will use vmpressure range 50-70, 2GB will use 10-70
+# 1GB and less will use 512 pages swap size, 2GB will use 1024
+#
+# Set Low memory killer minfree parameters
+# 32 bit all memory configurations will use 15K series
+# 64 bit all memory configurations will use 18K series
+#
+# Set ALMK parameters (usually above the highest minfree values)
+# 32 bit will have 53K & 64 bit will have 81K
+#
+
+arch_type=`uname -m`
+MemTotalStr=`cat /proc/meminfo | grep MemTotal`
+MemTotal=${MemTotalStr:16:8}
+MEMORY_THRESHOLD=1048576
+IsLowMemory=MemTotal<MEMORY_THRESHOLD ? 1 : 0
+
+# Read adj series and set adj threshold for PPR and ALMK.
+# This is required since adj values change from framework to framework.
+adj_series=`cat /sys/module/lowmemorykiller/parameters/adj`
+adj_1="${adj_series#*,}"
+set_almk_ppr_adj="${adj_1%%,*}"
+
+# PPR and ALMK should not act on HOME adj and below.
+# Normalized ADJ for HOME is 6. Hence multiply by 6
+# ADJ score represented as INT in LMK params, actual score can be in decimal
+# Hence add 6 considering a worst case of 0.9 conversion to INT (0.9*6).
+set_almk_ppr_adj=$(((set_almk_ppr_adj * 6) + 6))
+echo $set_almk_ppr_adj > /sys/module/lowmemorykiller/parameters/adj_max_shift
+echo $set_almk_ppr_adj > /sys/module/process_reclaim/parameters/min_score_adj
+
+echo 1 > /sys/module/process_reclaim/parameters/enable_process_reclaim
+echo 70 > /sys/module/process_reclaim/parameters/pressure_max
+echo 30 > /sys/module/process_reclaim/parameters/swap_opt_eff
+echo 1 > /sys/module/lowmemorykiller/parameters/enable_adaptive_lmk
+
+if [ "$arch_type" == "aarch64" ] && [ $MemTotal -gt 1048576 ]; then
+    echo 10 > /sys/module/process_reclaim/parameters/pressure_min
+    echo 1024 > /sys/module/process_reclaim/parameters/per_swap_size
+    echo "18432,23040,27648,32256,55296,80640" > /sys/module/lowmemorykiller/parameters/minfree
+    echo 81250 > /sys/module/lowmemorykiller/parameters/vmpressure_file_min
+elif [ "$arch_type" == "aarch64" ] && [ $MemTotal -lt 1048576 ]; then
+    echo 50 > /sys/module/process_reclaim/parameters/pressure_min
+    echo 512 > /sys/module/process_reclaim/parameters/per_swap_size
+    echo "18432,23040,27648,32256,55296,80640" > /sys/module/lowmemorykiller/parameters/minfree
+    echo 81250 > /sys/module/lowmemorykiller/parameters/vmpressure_file_min
+else
+    echo 50 > /sys/module/process_reclaim/parameters/pressure_min
+    echo 512 > /sys/module/process_reclaim/parameters/per_swap_size
+    echo "15360,19200,23040,26880,34415,43737" > /sys/module/lowmemorykiller/parameters/minfree
+    echo 53059 > /sys/module/lowmemorykiller/parameters/vmpressure_file_min
+fi
diff --git a/rootdir/etc/init.qcom.power_msm8916.rc b/rootdir/etc/init.qcom.power_msm8916.rc
index f7bb26c..7f4e287 100644
--- a/rootdir/etc/init.qcom.power_msm8916.rc
+++ b/rootdir/etc/init.qcom.power_msm8916.rc
@@ -1,4 +1,6 @@
 on enable-low-power
+    start qcom-mem
+
     # HMP scheduler load tracking settings
     write /proc/sys/kernel/sched_window_stats_policy 3
     write /proc/sys/kernel/sched_ravg_hist_size 3
diff --git a/rootdir/etc/init.qcom.power_msm8939.rc b/rootdir/etc/init.qcom.power_msm8939.rc
index e79610d..1f4a424 100644
--- a/rootdir/etc/init.qcom.power_msm8939.rc
+++ b/rootdir/etc/init.qcom.power_msm8939.rc
@@ -1,4 +1,6 @@
 on enable-low-power
+    start qcom-mem
+
     write /proc/sys/kernel/sched_boost 1
 
     # RPS mask
@@ -76,13 +78,6 @@ on enable-low-power
     write /dev/cpuset/system-background/cpus 4-6
     write /dev/cpuset/top-app/cpus 0-7
 
-    # Per-process reclaim
-    write /sys/module/process_reclaim/parameters/enable_process_reclaim 1
-    write /sys/module/process_reclaim/parameters/pressure_min 10
-    write /sys/module/process_reclaim/parameters/per_swap_size 1024
-    write /sys/module/process_reclaim/parameters/pressure_max 70
-    write /sys/module/process_reclaim/parameters/swap_opt_eff 30
-
     rm /data/system/perfd/default_values
     start perfd
 
diff --git a/rootdir/etc/init.qcom.rc b/rootdir/etc/init.qcom.rc
index ef1ede8..800ca37 100644
--- a/rootdir/etc/init.qcom.rc
+++ b/rootdir/etc/init.qcom.rc
@@ -477,3 +477,7 @@ service wcnss-service /system/bin/wcnss_service
     user system
     group system wifi radio
     oneshot
+
+service qcom-mem /system/bin/sh /system/etc/init.qcom.mem.sh
+    disabled
+    oneshot
-- 
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