[KERNEL] [CM13/14.1/LINEAGE - AOSP] // [13.12.16]decipher // UPDATED

[SuperSimian]

disclaimer

-- 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 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 simply laugh at you.
*/

I'm not a developer, I'm only contributing to the community with MY custom kernel, hope you enjoy it.

decipher_kernel​

Introduction
Based on stock CM 12.1 kernel and modified for a more IN CONTROL user experience, Kernel includes many features and upgrades not found in stock, Stability is the number one priority. Now, CM13 is supported (it's still the same as CM12 kernel, with new upgrades). Simple-CM kernel will be discontinued (it will remain in OP), decipher kernel is a lot more stable, especially MPB.

Main features

Hotplugs:

• IntelliPlug 4.0
• Bricked hotplug
• MSM Hotplug
• AutoSMP

Governors:

• Yankactive
• Impulse
• IntelliActive
• IntelliDemand
• ZZMoove
• BioShock
• + all CM defaults

IO Schedulers:

• bfq
• sio
• zen
• tripndroid
• + all CM defaults

Other Features

• Advanced TCP congestions
• Sound Control
• Frandom
• KCAL control
• Adreno idler
• Dynamic Fsync toggle
• Kernel mode: NEON
• SElinux mode: Permissive
• KEXEC support
• Enable headset in high performance
• Powersuspend modes
• GPU UC/OC

Simple-CM​

Introduction
Ok, so here it is, this is probably the closest to stock CM kernel, I've included only the most essential features, this means no extra CPU governors/IO schedulers/Hotplugs. So it's basically stable CM stock kernel with a few added features to have a little more control. You can see github to view the changes.

For those who are considered about battery life; this will give you same battery as stock CM and it's ok for two reasons:
1. Under clocking to save power is useless below 787200.
Remember when on stock kitkat your default "low" frequency was 787200? well it was for a reason.
2. Frequency's below 787200 consume the same power as 787200. The same goes for frequency's above 787200, so ideally we would get optimal performance with just using 2 frequencys, 787200 and 1190400..


Main features

Hotplugs:

• mpdecision

Governors:

• all CM defaults

IO Schedulers:

• all CM defaults

Other Features

• UBER toolchain GCC 4.9.4
• KCAL control
• GPU UC/OC
• KEXEC support
• Permissive

Install Instructions​

• download latest version of the zip
• reboot recovery
• make sure you are on stock CM kernel before flashing for the first time, if not then proceed to wipe system partition and flash CM/AOSP ROM.
• install ANY VERSION OF DECIPHER kernels
• if upgrading, proceed to flash normal way.
• wiping dalvik is not necessary in any case.

Downloads

GOOGLE DRIVE​

Thanks To/Credits

* CyanogenMod
* osm0sis
* savoca
* faux123
* neobuddy89
* ZaneZam
* Zakee94
* Flashhhh
* arter97
* Hurtsky
* mrg666
* many more

XDA:DevDB Information
decipher_kernel, Kernel for the Moto G 2014

Contributors
-decipher-
Source Code: https://github.com/decipher90

Kernel Special Features: MSM Hotplug, Bricked Hotplug, Awesome Governors, IO schedulers, KCAL control, Neon mode, Sound control.

Version Information
Status: Stable
Current Stable Version: [CM13][13.12.16]
Stable Release Date: 2016-12-13

Created 2015-07-31
Last Updated 2017-01-29

 

[SuperSimian]

Latest Change-logs

13.12.16:
[CM14.1][13.12.16]decipher // MPB

• merge CM changes
• Major tweak script changes
• bioshock lag fix attempt #1

Older Change-logs

16.11.16:
[CM13][CM14.1][16.11.16]decipher // MPB

• merge CM changes
• minor installer script changes
• VM improvements

06/11/16:
[CM13][2016-11-06]decipher // MPB

• merge CM changes
• minor script changes for MPB

24/10/16:
[CM13][031016]decipher // MPB

• merge CM changes

03/10/16:
[CM13][031016]decipher // MPB

• installer script changes
• back to msm mpdesicion hotplug as default
• disable slice idle for BFQ and CFQ (this parameter is meant for rotational storage)
• silence some logs
• Linux patch-3.4.100 (skipped a few, LOL)
• Added Auto SMP hotplug driver to both kernel versions (might be removed from MPB later)

09/09/16:
[CM13][240816]decipher // MPB

• merge CM kernel updates
• bioshock as default governor
• Intelliplug as default Hotplugging driver
• Installer script completely tweaks the kernel for a balanced profile

24/08/16:
[CM13][240816]decipher // MPB

• merge CM changes
• updated default configuration files as per CM.
• yankactive is now more battery friendly
• Installer script sets yankactive as default gov (for now)

12/08/16:
[CM13][120816]decipher // MPB

• merge CM changes
• New script sets 787200 Hz as the default frequency.
• Reduced Bricked hotplug start delay + fewer checks + Idle frequency is now 787200
• tuned Intelliplug hysteresis value for better battery.

02/08/16:
[CM13][020816]decipher // MPB

• merge CM changes

22/06/16:
[CM13][220616]decipher // MPB

• toolchain updated
• compiled from scratch
• merge CM changes

11/06/16:
[CM13][110616]decipher // MPB

• merge CM changes

23/05/16:
[CM13][230516]decipher // MPB

• fix low volume issue introduced in last update

21/05/16:
[CM13][210516]decipher // MPB

• merge CM changes

10/05/16:
[CM13][100516]decipher // MPB

• merge CM changes

30/04/16:
[CM13][300416]decipher // MPB

• Update toolchains
• Update defconfigs
• merge CM changes

03/04/16:
[CM13][030416]decipher // MPB

• merge CM changes

26/03/16:
[CM13][260316]decipher

• merge CM changes

20/03/16:
[CM13][200316]decipher

• merge CM changes
• vibrator tweaks

B]04/03/16: [/B]
[CM13][040316]decipher

• UBER TC updates

14/02/16:
[CM13][140216]decipher

• incorporate new drivers for /drivers/staging/prima (wlan and WiFi)
• merge cm changes

10/02/16:
[CM13][100216]decipher

• updated defconfigs
• TripNdroid IO is back
• simple GPU algorithm (off by default)
• headphone_pa_gain added to sound Control (only tunable with Faux sound APP)

01/02/16:
[CM13][010216]decipher

• updated defconfigs
• merge latest CM changes

11/01/16:
[CM13][110116]decipher

• completely Rebuilt FROM SCRATCH (again)
• debloated the kernel
• update to latest CM sources (7 pages of 35 commits per page of updates)

29/12/2015:
[CM13][291215]decipher

• completely Rebuilt FROM SCRATCH
• Overhauled the custom defconfigs > applied Google recommended settings..
• update to latest CM sources
• tons of futex updates
• Fix high load average from uninterruptible waits
• Add current consumption values used by cpufreq_stats
• VM fixes and updates
• ARM updates
• bring back old CPU governors.
• selinux fixes and updates
• TONS of enhancements and upgrades

23/12/2015:
[CM13][231215]decipher

• Linux kernel version 3.4.42
• merge CM13 updates to 22/12/15
• Wiimote is now supported (thanks CM)
• Enable CONFIG_UID_CPUTIME
• The latest doze feature should now be supported (thanks Luk and luca)
• ARM updates
• TONS of enhancements and upgrades (not kidding)

21/12/2015:
[211215]decipher

• ARM updates
• miscellaneous enhancements and upgrades

30/11/2015:
[301115]decipher

• merge CM changes
• remove KSM (kernel same page merging)
• miscellaneous enhancements and upgrades

20/11/2015:
[201115]decipher

• Linux version 3.4.110
• many enhancements to cpu and mach-msm code
• implement USB fast charge
• many ARM updates
• miscellaneous enhancements and upgrades

12/11/2015:
[121115]simple-CM

• merge CM changes

[121115]decipher

• merge CM changes
• ARM updates
• silent some log
• VM updates
• power: Disable IRQ wake-up when disabling the IRQ

31/10/2015:
[151031]simple-CM

• merge CM changes

[151031]decipher

• merge CM changes
• various CPU and GPU improvements
• disable smartmax/ Intellimm CPU govs
• disable VR IO scheduler (ZEN is an improved version of VR)
• Miscellaneous upgrades/fixes

22/10/2015:
[151022]simple-CM

• update install scripts not nuking the new powerhal binary

[151022]decipher

• update install scripts not nuking the new powerhal binary
• bring back headphone_pa_gain
• disabled advanced TCP congestion except westwood
• disabled userspace/ondemand/conservative CPU governors

17/10/2015:
[151017]simple-CM

• Miscellaneous upgrades

[151017]decipher

• implement BioShock CPU governor
• tune bricked hotplug once more
• tune some CPU govs responsiveness (intellidemand/intellimm/zzmoove)
• set default profile (8) zzperf for zzmoove
• sound control: remove headphone_pa_gain (was not working)
• Miscellaneous upgrades

10/10/2015:
[151010]simple-CM

• Introduce NEW VERSION (simple-CM) details here.
• UBER toolchain GCC 4.9.4
• KCAL control
• GPU UC/OC
• KEXEC support
• Permissive

[151010]decipher

• merge CM changes
• tune bricked hotplug to be more aggressive
• tune some CPU governors
• VM upgrades

04/10/2015:
[151004]decipher_v7

• Merge CM changes
• switch to UBER toolchain GCC 4.9.4
• Bring back MSM hotplug (should not cause those extremely rare reboots now)
• many ARM updates
• Switch to -O3 flag (more optimizations in compilation)
• implement RWSEM algorithm (experimental, may go away)
• implement unaligned memory access capability for ARM
• plus many more updates (check git)

[151004]simple_v6

• ALL decipher_v7 updates (except MSM hotplug)

30/9/2015:
decipher_simple_v5.1 + decipher_kernel_v6.1

• bump to Linux kernel v3.4.109
• entropy tweaks

18/9/2015:
decipher_simple_v5

• merge CM changes
• new and improved BFQ IO
• removed smartmax CPU gov (improved interactive is better)
• removed SIO + ZEN (no longer necessary)
• removed Intelliplug 4.0 (bricked hotplug can easily replace it)
• as simple as it gets

decipher_kernel_v6

• merged CM changes
• new and improved BFQ IO

13/9/2015:
decipher_simple_v4

• completely based on decipher_kernel now (many updates)
• rebuilt from scratch

7/9/2015:
decipher_kernel_v5.3

• stability improvements
• disable simple_GPU (adreno idler is better)
• disable Intellithermal (default thermal engine is more stable, intellithermal can cause some problems with frequency's)

1/9/2015:
decipher_simple_v3.2 + decipher_kernel_v5.2

• merge CM changes
• implement adreno_idler by arter97

23/8/2015:
decipher_simple_v3.1 + decipher_kernel_v5.1

• 
  merge CM changes (many)

16/8/2015:
decipher_simple_v3

• switch toolchain to Linaro 5.1 optimized for cortex-a7 CPU
• replace Intelliactive with newest ZZMoove 1.0 beta8 for SNAPDRAGON (tested)

decipher_kernel_v5

• switch toolchain to Linaro 5.1 optimized for cortex-a7 CPU
• add newest ZZMoove 1.0 beta8 for SNAPDRAGON (tested)

10/8/2015:
decipher_simple_v2.1
add KEXEC support
9/8/2015:
decipher_simple_v2

• enable kernel mode:NEON
• Headset in high performance
• audio optimizations
• ARM Cortex-A7 optimizations

decipher_kernel_v4

• ARM Cortex-A7 optimizations
• merged CM changes

7/8/2015:
decipher_simple_v1 initial release
3/8/2015:
Add IntelliActive governor (tested)
Add IntelliDemand governor (tuned+tested)
Remove MSM hotplug (causing random reboots if wrong values were tampered with)
Add IntelliPlug 4.0 by faux123
1/8/2015:
Enable KEXEC support
Tripndroid IO scheduler
Optimized zen IO scheduler for android
Fixed battery draining even in deep sleep (former CM bug)
Merged CM changes
31/7/2015:
initial release v1

FAQ

• what's the difference in this kernel?
  decipher_kernel will focus mainly on stability, before each update the kernel undergoes heavy testing to ensure the least errors possible, this means that features may come and go if they're potentially unstable.
• Why no CPU underclocking?
  CPU underclocking tries to save power by reducing the cycles a CPU undergoes in one second (Hz) It's not available in decipher_kernel for one reason: Lower frequencys like 192MHz or 96MHz use the same voltage as 300MHz, so there is no apparent power saving.
• Why no CPU overclocking?
  Implementing this feature in the source code can (and has) be done, nevertheless REAL overclocking is not possible due to hardware level limitations.
• Can't flash the kernel? or kernel doesn't apply when flashing?
  Try placing the .zip file in the root of internal storage and flash from there, also rename the zip file to something that includes no special characters or spaces ( example: kernel.zip ), some users have reported this solves this issue. If you're getting an error executing updater binary, just wipe system and flash again. As a last resort, try wiping System partition and reflash ROM.

 

[SuperSimian]

Tuning The Settings​

Use kernel adiutor to tune the settings.
Iv'e included a few profiles oriented to: performance, battery, balanced.

Expand to see Profiles

My personal Settings

CPU governor: interactive
muticore power saving: off
CPU boost: off
Input boost: off

CPU hotplug: intelliplug
hysteresis: 8
touch boost: ON
max freq screen off: 787
threshold:350

GPU governor: msm-adreno-tz
max_freq: 533
adreno idler: on (defaults)

IO scheduler: bfq (both)
read_ahead: 512 (Internal)
read_ahead: 2048 (external 32GB class 10)

Virtual memory:
dirty ratio: 20
dirty bacground ratio: 10
dirty expire centicecs :200
dirty writeback centices: 500
min free kbytes: 4096
swappiness: 60
vfs cache pressure: 100
laptopmode: 2
minfree extra kb: 10800
swap: 250

Balanced

CPU governor: zzmoove
profile: zzrelax (11) or yankactive
muticore power saving: off
CPU boost: off
Input boost: off

CPU hotplug: MSM MPdecision (defaults)
or
IntelliPlug: Balanced
hysteresis: 8 - 12

GPU governor: msm-adreno-tz
max_freq: 533
adreno idler: on (defaults)

IO scheduler: bfq (int) & noop (ext)
read_ahead: 128 (Internal)
read_ahead: 2048 (external 32GB)

Virtual memory: defaults

Performance

CPU governor: bioshock
muticore power saving: off
CPU boost: on
touch boost: off

CPU hotplug: MSM MPdecision
idle freq: 384000
or
IntelliPlug performance
hysteresis value: 8

GPU governor: msm_adreno-tz
max_freq: 533
adreno idler: on (defaults)

IO scheduler: bfq (int) & deadline (ext)
read_ahead: 128 (Internal)
read_ahead: 2048 (external 32GB)

Virtual memory: defaults

Battery

CPU governor: zzmoove
profile: ybat (2) or ybatext (3) or zzrelax(11) <-- recommended
muticore power saving: agressive
CPU boost: off
Input boost: off

CPU hotplug: MSM MPdecision
max cores online: 2
or
IntelliPlug: Eco conservative
Hysteresis: 8 - 12

GPU governor: powersave
max_freq: 320

IO scheduler: fiops(internal) noop (external)
read_ahead: 512 (both)

Virtual memory (important settings)
dirty ratio: 80
dirty bacground ratio: 65
dirty expire centicecs :1500
dirty writeback centices: 3500
min free kbytes: 4096
swappiness: 100
vfs cache pressure: 40

These virtual memory settings are not for all users, it depends on how much multitasking you have going on on your phone, if you face some lag in any heavy app like FB just revert these VM changes and stick with the default ones altho they are a little bit more power hungry.

Explanation: dirty ratio is a value in percent that determines the max amount of system memory that can be filled with dirty pages untill they need to be writen to disk, when this limit is reached, system begins writing to disk (this is what may cause sligh lags) the value is high (80) because we don't want to write to disk very often, swappiness also plays an important role here, it is also set to high (100) to make the kernel swap agressively when dirty background ratio (60) is met. Then comes vfs cache pressure and it is set to low (30) this is also a percentage value and controls the tendency of the kernel to reclaim the memory which is used for caching (we don't want this to often). The centicec values are only timers for wrting actions. The min free kbytes value is the minimum memory the kernel will keep free at all times.

Iv'e written this for better understanding, you can visit this link for a more tecnical explanation.

 

[pinkerini]

Is there any plans to make SELinux permissive?

 

[SuperSimian]

Is there any plans to make SELinux permissive?

it's already permissive
see https://github.com/decipher90/decipher_K/commits/cm12.1-Z

 

[pinkerini]

it's already permissive
see https://github.com/decipher90/decipher_K/commits/cm12.1-Z

Oh my bad. Because I didn't saw it in the description I assumed it wasn't, thanks.

 

[wifestealer]

Does it Work on cm based ROM?

 

[SuperSimian]

Does it Work on cm based ROM?

yes, I think I'll give out more info on OP hehe.

 

[wifestealer]

yes, I think I'll give out more info on OP hehe.

Thank you that's why I asked

 

[reeeju]

Wow..another kernel...looks promising......gonna try fr sure..... @decipher
Thanx fr ur kernel tunings?

 

[reeeju]

Flashed with pa 5.1

 

[wifestealer]

Flashed with pa 5.1

I'm too on pa 5.1 but I haven't flashed this one. I'll do it soon

 

[reeeju]

I'm too on pa 5.1 but I haven't flashed this one. I'll do it soon

Lol..okay but I changed my ROM just now....now on sarath's EU phoria latest build....
Gonna flash this kernel and .........to be continue?


Just flashed with euphoria......and followed balanced settings from op above......

 

[SuperSimian]

If you encounter unexpected behaviour please report back politely, I will do my best to fix any problems.

 

[Vatsal]

How about adding kexec?
Running it with tesla, going good for now

 

[reeeju]

If you encounter unexpected behaviour please report back politely, I will do my best to fix any problems.

@decipher
Battery draining is fast in even screen off situation......
I hav attached a ss below

 

[SuperSimian]

@decipher
Battery draining is fast in even screen off situation......
I hav attached a ss below

thank's for reporting, it's fixed in v2.
BTW, you mentioned the wrong user xD

 

[SuperSimian]

UPDATE v2
1/8/2015:
Enable KEXEC support
Tripndroid IO scheduler
Optimized zen IO scheduler for android
Fixed battery draining even in deep sleep (former CM bug)
Merged CM changes

 

[reeeju]

UPDATE v2
1/8/2015:
Enable KEXEC support
Tripndroid IO scheduler
Optimized zen IO scheduler for android
Fixed battery draining even in deep sleep (former CM bug)
Merged CM changes

Nice.....happy to see quick fix....downloading...will report later

Just flashed v2....will test fr 24 hours and telling u later

 

[Aulin86]

hi, i want try this kernel, but i can't install

i use the Euphoria rom unofficial, i try to install the kernel with twrp, but when i go to check the kernel is the same of Euphoria, don't change, i try to wipe system partition and flash the rom, but nothing

how can i resolve? thx!