[KERNEL][Snapdragon][4G/5G] PrimeKernel

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Senior Member
Dec 22, 2011
There is a telegram group called "S20 FE (Snapdragon) Prime Kernel".
I can't remember how I joined this group. And I cannot provide any link to this group.

I think, I found the link to the Prime Kernel Telegram group inside this group: https://t.me/S20FeModding


Mar 19, 2022

I was trying to build the Samsung open source kernel but it requires Snapdragons LLVM 10.0 compiler which I am not able to download. So I am trying to build the Prime Kernel. I downloaded the LLVM 13.0 kernel but I cannot seem to build it either. Can some one help with more details on kernel build ?


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    Hi guys! v3.1 is up!
  • 8

    v3.1 (June 7, 2022)

    • Based on G781BXXS4FVD9
    • Reverted Linux upstream since I can't thoroughly test this kernel and for better stability
    • Compiled with latest clang from clearlinux (Clang 13)
    • Removed dynamic allocation from several subsystems to speed them up
    • Removed more logging and debugging from several drivers on their hot code paths
    • Micro-optimizations for scheduler and workqueues
    • Sped-up pm qos by using atomic operations
    • Tweaked cpusets for better battery life and thermals
    • Improved audio driver a bit
    • Affined GPU and display IRQs to big cluster for better performance
    • Used optimized energy model and cpu frequencies
    • Undervolted GPU a bit
    • Code quality fixes for better overall stability
    • Compiled with O3 optimization
    • More under-the-hood optimizations

    v2.0 (December 16, 2021)
    • Upstreamed to Linux 4.19.219
    • Converted some subsystems to use power efficient workqueues
    • Removed logging from various drivers
    • Removed F2FS additional tracings

    v2.0-rc1 (December 1, 2021)
    • Display driver optimizations
    • Used BBR as default TCP congestion algorithm
    • Enabled BPF_JIT to improve network performance
    • Implemented optimized spinning loop
    • Updated to G780GXXU3AUI3 source drop
    • Speed up mremap
    • Removed msm_performance CPU boosting
    • Implemented optimized PM QoS for UFS
    • Changed zRAM compression algorithm to lz4
    • Disabled EAS_PREFER_IDLE for better power efficiency

    v1.0 (Nov. 8, 2021)
    • Based on Samsung G780GXXU3AUH5 source drop
    • Disabled knox and Samsung security stuffs
    • Changed timer tick to 100Hz for better throughput and power consumption
    • Optimized GPU wakeup
    • Removed use of dynamic allocation from several subsystems
    • Disabled binder debugging
    • Optimized UFS irq handling
    • Updated lz4 compression used by zswap
    • Disabled input booster
    #include <std_disclaimer.h>
    * Your warranty is now void.
    * I am not responsible for bricked devices, dead SD cards,
    * thermonuclear war, or you getting fired because the alarm app failed. Please
    * do some research if you have any concerns about features included in this ROM/Kernel
    * before flashing it! YOU are choosing to make these modifications, and if
    * you point the finger at me for messing up your device, I will laugh at you.

    Disclaimer: I haven't tested out any builds but there are testers on our Telegram group. Be sure to backup your boot partition before flashing.
    Many thanks to the testers. It wouldn't have been possible for me to release this if it weren't for them

    -rc builds may or may not be stable and need more testing

    • Based on latest Samsung open source drop​
    • Compiled with the latest Clang from Google (Clang 12) clearlinux (Clang 13)​
    • Assuming you have a custom recovery installed, simply download and flash the kernel zip. This kernel uses Anykernel 3 so no need to reflash magisk(if you use magisk) after installing it.
    Join our Telegram group to get access to early releases: Prime Kernel Telegram group

    Kernel source code:
    v2.0-rc1 is up!
    Please make the same kernel for android 12
    They didnt release a new source drop yet