In this thread you may find my customized kernel 3.4.x for Lollipop rom (CM 12.0 and derivatives) that use ION+PMEM ADSP memory allocations.
Of course, your feedback, as always, are welcome and certainly valuable.
The main features are the following:
- Kernel 3.4.x
- Kernel based on more updated kk_2.7-stable branch of CAF (Code Aurora Forum)
- Sources synched with cm-12.0 repo branch of DevCon Team
- Built with my custom Linaro 4.9.3-2014.12 toolchain optimized for Cortex-A8
- Built with Cortex-A8 and NEON VFP optimization flags (both kernel and modules)
- Built with -O3 optimization flag (both kernel and modules)
- CPU overclockable up to 1824 MHz
- CPU frequencies undervolted (UV version) or extremely undervolted (EXUV version)
- CPU voltage control VDD sys interface (click for more details)
- Dynamic memory allocation of MM ION heap through CMA (Contiguous Memory Allocator)
- Dynamic memory allocation of PMEM ADSP heap through CMA (Contiguous Memory Allocator)
- 396MB, 406MB or 416MB of free RAM
- Init.d support
- Fast Charge support (default disabled, click for more details)
- Battery Life eXtender support (default disabled, click for more details)
- Ram Console support (click for more details)
- TRIM support
- USB OTG support (if also implemented on rom side)
- Lowered display panel voltage
- Lowered vibetonz voltage
- Lowered wifi voltage
- Lowered swappiness (60 -> 45)
- Increased CPU frequency during boot
- Optimized AES and SHA1 routines for ARM cpu architecture
- Fixed 100% battery notification after charger unplug
- Increased audio volume on board side
- Con Kolivas' CK3 Tweaks
- Optimized SLUB memory allocator
- Optimized ARM RWSEM (read/write semaphore) algorithm
- Optimized asynchronous I/O latency on solid state disks
- Disabled Gentle Fair Sleepers for better UI performance
- CIFS support on boot
- Memory compaction
- Dynamic compression of clean pagecache pages
- Dynamic FSync v1.2 (click for more details)
- Dynamic dirty page writebacks (click for more details)
- VM tweaks for performance and less battery consumption
- Revised LowMemoryKiller parameters for better performance (click for more details)
- Timer slack controller (click for more details)
- Dynamic management of the minimal timer slack value during suspend/resume (click for more details)
- LowMemoryKiller management of not killable processes (click for more details)
- exFAT support
- Additional TCP Congestion algorithms
- Updated ZRam, ZSMalloc, ZCache built-in modules
Available CPU governors:
- Adaptive
- BrazilianWax
- Conservative
- Hyper
- Intellidemand
- Interactive
- InteractiveX
- LionHeart
- LulzActive
- OnDemand (default)
- OnDemandX
- Performance
- Powersave
- SmartAssV2
Available I/O schedulers:
- BFQ
- CFQ
- Deadline
- Fiops
- Noop
- ROW
- SIO (default)
- V(R)
Kernel Downloads for Lollipop ION+PMEM ADSP:
K^Kernel LP-5.0 Mediafire Folder
- v1.0 -
for CM 12.0
and the other roms based on CM 12.0
Note: You must use the CWM recovery with new partition assignments you may find inside CM 12.0 thread by arco68.
- v1.0 -
for CM 12.0
and the other roms based on CM 12.0
Note: You must use the CWM recovery with new partition assignments you may find inside CM 12.0 thread by arco68.
Howto install the kernel:
1) Download the preferred kernel zip file to sdcard or external sdcard
2) Reboot to recovery mode
3) Flash the kernel zip file
4) Wipe cache and dalvik cache if you're coming from another kernel
5) Reboot the system[/B]
Kernel sources (on GitHub):
Useful info:
- Special features and sysfs settings
- Frequently asked questions
Tables:
Changelog:
Code:
31/12/2014 - K^Kernel 3.4 v1.0 for Lollipop ION+PMEM ADSP
- Kernel 3.4.105
- Built with my latest custom Linaro 4.9.3-2014.12 toolchain optimized for Cortex-A8
- ariesve: Set SELinux to be permissive (credits to Christopher83)
- defconfig: Set selinux permissive (credits to arco68)
- defconfig: Enable CONFIG_NETFILTER_XT_TARGET_IDLETIMER (credits to arco68)
- defconfig: Regenerate (credits to arco68)
- ext4: Add support for FIDTRIM, a best-effort ioctl for deep discard trim (credits to JP Abgrall)
- broadcom_wlan: Modify country code source (credits to arco68)
- net: ipv6: autoconf routes into per-device tables (credits to Lorenzo Colitti)
- netfilter: nf_conntrack: decrement global counter after object release (credits to Pablo Neira Ayuso)
- net: ipv6: Add a sysctl to make optimistic addresses useful candidates (credits to Erik Kline)
- Enable NEED_NETDEV for vendor command support. (credits to Subhani Shaik)
- cfg80211: ignore supported rates for nonexistant bands on scan (credits to Felix Fietkau)
- crypto: msm: check potential integer overflow (credits to William Clark)
- defconfig: Enable generic USB audio driver (credits to tobigun)
- i2c: chips: fsa9480: Add support for charging in USB-OTG mode (credits to tobigun)
- defconfig: Update custom defconfigs (credits to Christopher83)
- defconfig: Disable Frandom module (credits to Christopher83)
- i2c: chips: fsa9480: Add write-permission for USB-OTG charger type (credits to tobigun)
- Staging: android: binder: More offset validation. (credits to Arve Hjonnevag)
- fs: f2fs: Initial import from https://kernel.googlesource.com (credits to arco68)
- defconfig: Enable F2FS filesystem (credits to arco68)Credits and Thanks to:
arco68, CastagnaIT and Ivendor for their awesome work and their kernel sources
Ezekeel, Doomlord, Faux123, Stratosk, Tegrak, ErasmuX, Imoseyon, Blefish, mikeioannina, Madridii and other devs I'm surely missing
CyanogenMod, Kernel.org, Code Aurora Forum, Google, Linaro GCC developers
XDA:DevDB Information
[GT-I8150][ION] K^Kernel 3.4 for LP 5.0 ION+PMEM ADSP, Kernel for the Samsung Galaxy W I8150
Contributors
Christopher83
Source Code: https://github.com/Christopher83/sam...0/tree/cm-12.0
Kernel Special Features: Customized kernel 3.4.x for LP 5.0 rom (CM 12.0 and derivatives) with ION memory allocations
Version Information
Status: Stable
Current Stable Version: v1.0
Stable Release Date: 2014-12-31
Created 2014-12-31
Last Updated 2014-12-31
Written by dd
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