[WALLEYE][8.1][4.4.109][BFQ] mKernel R5

[msdx321]

README!!!
I'm in China right now, so won't show up at XDA very frequently. If you encounter any bugs, please leave an issue on GitHub
Introduction
This is a personal kernel for Pixel 2 aka walleye. The central goal for it is to provide overall performance improve without any more power consumption than stock kernel. It also allow you to modify the device in your own style, such as charge control.

Important
I'm not responsible for any damage caused by this kernel. Since I'm not even a XDA recognized developer, this kernel might be potentially harmful to your device.

Featrues

• Catch up the latest Linux upstream
• Catch up the latest EAS
• BFQ added
• CRNG random driver (from linux-mainline, 10x+ faster)
• Wakelock control
• AC Charging current control (current up to 3200mah)
• Tunable USB fast charge
• Some more TCP algorithms (westwood as default)
• Use power efficient workqueues for several subsystems
• Force SElinux in Permissive mode
• SafetyNet patch included
• GPU underclocked (180MHz)
• Compiled by clang 5.0
• Be able to *see* CPU voltage table
• Some misc improve
• HBM mode support
• Adreno Boost support
• WireGuard support
• KCAL control
• Wakeup Gestures (From EXKernel)

Some guides
Kernel Manager
Personally recommend EX Kernel Manager and KernelAdiutor
AC Charging current control
Google implement a feature to adjust charging current based on battery voltage and temperature, if you want to turn it off, use command

echo N > /sys/module/htc_battery/parameters/enable_ibat_adjust

Turn it on by

echo Y > /sys/module/htc_battery/parameters/enable_ibat_adjust

They also capped the max current to 2700ma, if you want to change it, use those two command

echo Y > /sys/module/htc_battery/parameters/enable_custom_fcc_ma

echo *the value you want* > /sys/module/htc_battery/parameters/custom_fcc_ma

Haptic strength control
Stock driver supports haptic strength control through altering the voltage like this. (Default value is 165)

echo *the value you want*> /sys/bus/i2c/devices/i2c-6/6-005a/od_clamp

Gonna map this to the common node so we can use kernel manager like EXKM to control

Changelog
R5:
[*]Linux 4.4.109 code merged
[*]Catch up to Jan's update
[*]Misc changes
R4:

• Wakeup Gestures (Kang from EXKernel)
• Linux 4.4.107 code merged

R3:

• Compile with polly
• Fix usb audio
• Pick some opt commits from freak97
• Linux 4.4.105 code merged

R2.1:

• KCAL control added
• Fix a derp

R2:

• mr1 release code merged
• Revert to stock binder
• WireGuard support added
• Linux 4.4.104 code merged

R1.1:

• Fix a bug happen when you flash the kernel with magisk at the same time (if still can't boot when flash together, try flash separately)
• mr1 preview code merged
• Switch to clang 5

Commits

Download
Google Drive

Install
The kernel is packed with AnyKernel2, so just flash the zip file in TWRP
You can extract the zImage and dtbo.img out and manually flash them if you want

Kernel Source
https://github.com/msdx321/android_kernel_google_wahoo

Credits and Thanks
Too many to list, please check my github commits for credits
Special thanks to @nathanchance for his notes about update to linux-stable (quite useful, encourage anyone who want to compile his own kernel read this)

Bug Report
Leave an issue on my github repo or send me an email

 

[msdx321]

Reserved

 

[gvsukids]

Install same as others using magisk to modify boot.img?

Sent from my [device_name] using XDA-Developers Legacy app

 

[msdx321]

Install same as others using magisk to modify boot.img?

Sent from my [device_name] using XDA-Developers Legacy app

It's packed with AnyKernel2 so boot into TWRP and flash it

 

[razrlover]

The more the merrier,??

 

[joetheshmo]

What's the reasoning for selinux permissive? V4A?

Sent from my Pixel 2 using Tapatalk

 

[msdx321]

What's the reasoning for selinux permissive? V4A?

Sent from my Pixel 2 using Tapatalk

Just a personal flavor, some features rely on permissive such reading GPU loads

 

[Ashray_Vk]

Hey,

Plans to add any sort of audio control ?

 

[nathanchance]

About time!

 

[msdx321]

Hey,

Plans to add any sort of audio control ?

Working on haptic and audio control right now

 

[msdx321]

About time!

:highfive: :highfive: :highfive:

 

[slyr114]

Do I flash the zimage like a boot image? What should I make it? Also I don't see the dtbo image. Or should I just flash twrp at this point?

I just booted into twrp so nevermind haha. Thanks works great so far!

 

[msdx321]

Do I flash the zimage like a boot image? What should I make it? Also I don't see the dtbo image. Or should I just flash twrp at this point?

I just booted into twrp so nevermind haha. Thanks works great so far!

The zip file is twrp flashable, you can also extract the zimage out and using fastboot manually flash it. For dtbo, R2 doesn't have one since R2 kernel doesn't need it. R2.1 has a dtbo image and need it.

 

[Ashray_Vk]

I know it may sound weird, but my headphones aren't getting detected, any logs I can get for that?

 

[SeaMax]

Headphone usb Adapter not working

I habe the same Problem, my headphone Adapter wont work, even in save Mode. Maybe it's magisk though or 8.1 and not the kernel. I will Flash Stock kernel with safetynet fix later or timorrow and report back.

Edit: Just flashed the "Flash" Kernel and can report Headphone adapter works again. I'll just stick to flash kernel, because i'm lazy.

 

[blaze9090]

Will this kernel work with taimen too?

 

[msdx321]

I know it may sound weird, but my headphones aren't getting detected, any logs I can get for that?

I habe the same Problem, my headphone Adapter wont work, even in save Mode. Maybe it's magisk though or 8.1 and not the kernel. I will Flash Stock kernel with safetynet fix later or timorrow and report back.

Edit: Just flashed the "Flash" Kernel and can report Headphone adapter works again. I'll just stick to flash kernel, because i'm lazy.

Sorry guys, it's a bug and has been fixed.:crying:

 

[Ashray_Vk]

Sorry guys, it's a bug and has been fixed.:crying:

Thanks for notifying , is that fix upcoming in the next update ?

 

[Ashray_Vk]

Thanks for notifying , is that fix upcoming in the next update ?

Sorry, just noticed the R3. Testing it out

 

[razrlover]

Sorry, just noticed the R3. Testing it out

How's it going?