Okitavera Kernel For Xiaomi Mi 9 SE

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Version 8.4    Download

Changelog

This is the final version for Android Pie (AOSP and MIUI)

• Merge Linux stable update v4.9.197
• Fix USB tethering data stall issues on RNDIS (Windows)
• Re-enable HBTP for better PowerHAL compatibility across Pie ROMs
• Remove boeffla_wl_blocker completely without ruining deep-sleep stats
• Disable unused CPRH Regulator
• Disable ARM arch timer virtual counter access for userspace
• Drop cgroup's memory controller for smaller overheads

Version 8.3-r3   

Changelog

• Merge Linux stable update v4.9.196
• Add accounting stats for the android sys process
• Add bias schedtune boosted tasks sched feature
• Add hold functionality to schedtune CPU boost
• Add toggle for disabling newly added USB devices
• Improve code style of qpnp-haptics's dt parser
• Improve code style of Dynamic SchedTune Boost
• Reset back to cubic for default TCP congestion
• Drop blu_schedutil CPU governor
• Drop Input-Assisted SchedTune Boost (we'll rely on PowerHAL instead)
• Fix unbalanced mutex on MSM IPA
• Fix unbalanced mutex on compress_offload stream state
• Block IPA Resource Manager it from creating wakelocks
• Remove duplicate zstd test vector
• kernel/fork: nuke duplicate mem and ids allocation
• vhost: change vring ioctl args to be unsigned int
• qcacld-3.0: check peer availability before use
• Properly restore cached ratelimits on schedutil init
• Disable Qualcomm minidump support
• Remove experimental KVM support (not working yet)
• Kill showmem notifier framework driver (again)
• Silent debugfs warning on kgsl
• Add GPU driver memory consumption in vmstat
• Add ION heap-pool allocation stat into vmstat
• Cleanup devfreq-boost remnant
• Remove spammy process migration and IRQ hotplug messages warning

Version 8.2   

Changelog

• Disable auditing completely
• Enable memory resource controller for cgroups
• Nuke compat vDSO32 since it doesn't compatible with 4.9-q anymore
• Let fod_status attributes managed by the ROM (just in case)
• drop unused changes on lmk and irq affinity
• Reduce down ratelimit to 5000

Version 8.1   

Changelog

• Merge updates from CAF tag 'LA.UM.7.8.r1-07100-SDM710.0'
• Add dynamic PLL sysclk for grus's CS35L41
• Enable KVM with EL2 Level
• Re-init fod_status for MIUI compatibility
• Cleanup cpu_input_boost's remnants
• Cleanup unnecessary power logging

Version 8.0   

Changelog

• Updated to linux-stable v4.9.194
• Merged Google kernel/common android-4.9-q
• fw-api: Merge branch wlan-api.lnx.1.0.r9-rel (LA.UM.8.8.r1-05100-SDM710.0)
• qca-wifi-host-cmn: Merge branch 'wlan-cmn.driver.lnx.2.0.3.r7-rel' (LA.UM.8.8.r1-05100-SDM710.0)
• qcacld-3.0: Merge branch 'wlan-cld3.driver.lnx.2.0.3.r7-rel' (LA.UM.8.8.r1-05100-SDM710.0)
• Fix qcacld's lost_link_info_cb compilation when control path stats is disabled
• Drop Xiaomi last-touch event recorder
• Kill CAF showmem notifier framework driver
• Enable Pressure Stalk Information
• Restore auditing support for proper vts testing
• Nuke unnecessary errata workarounds
• Reset energy model back to CAF for lesser consumption at high freq

Version 7.7   

Changelog

• Updated to linux-stable v4.9.193
• Enable minidump support
• Allow CPU to drop to the lowest freq
• Re-align cluster cost data to match the cpu cost data
• Reset in-display fingerprint status when loading firmware config
• Assemble asm codes with gcc 9 (ARM/32)

Version 7.6   

Changelog

• Updated to linux-stable v4.9.192
• Initial release of Input-Assisted SchedTune Boost
• Boost SchedTune on App Transition
• Remove deprecated Kerneltoast's CPU Input and Devfreq Boost
• Make iowait_boost optional in schedutil
• Fix idempotency issues on sched_boost value
• Fix frequency request issues when last raw_freq is invalid
• Allow tuning on group_idle per io cgroup for CFQ
• Expose cpu time information to userspace for further energy checking
• Reduce cpu time bottleneck by exclude invalid frequencies
• Support recording cpu frequency transitions on fast switch path

Version 7.5   

Changelog

• Initial support for 32-bit vDSO
• Remove hardcoded vm.dirty_expire_centisecs
• Check touch interval before input-boosting
• Drop redundant stune boosting calls on cpu-input-boosts
• Tune disk-caching for better performance
• Align idle-timeout for idlestate to match screen-timeout
• Remove hardcoded top-app stune boost
• Increase the cgroup limit to 6
• Optimize cpu boosting mechanism on cgroups
• Nuke devfreq boost on zygote-forks scene
• Increase the boost time for zygote-forking

Version 7.4   

Changelog

• Updated to linux-stable v4.9.191
• Add idle state sysfs node (for custom ROM that need it on their libperfmgr)
• Drop unused duplicate boosting on wake up scenarios

Version 7.3   

Changelog

• Updated to linux-stable v4.9.190
• Merge latest blu_schedutil updates from engstk (blu_spark kernel)
• Reset CFQ to default io scheduler
• Re-apply aligned cost-data from the legacy kernel

Version 7.2   

Changelog

• Merge update from CAF (TAG: LA.UM.7.8.r1-06900-SDM710.0)
• re-Introduce Exposure Adjustment (DC Dimming on crDroid)

Version 7.1   

Changelog

• qcacld: Merge branch 'wlan-cld3.driver.lnx.2.0.3.r6-rel'
• qcacmn: Merge branch 'wlan-cmn.driver.lnx.2.0.3.r6-rel'
• fw-api: Merge branch 'wlan-api.lnx.1.0.r8-rel'
• Follows google recommended kernel timing (better ui/ux performance)
• Fix goodix_ts driver timing conversions
• Keep boosting time a little-bit longer on wakeup scenarios
• Properly set up/down ratelimit on schedutil
• Remove unnecessary registers monitoring on charging driver
• Reduce non-critical logs on goodix_ts and smb-lib
• Completely disable unused edl mode
• Disable more debugging
• Disable auditing infrastructure support
• Disable delay for backlight update

Version 7.0-r2   

Changelog

• Rebased to CAF kernel.lnx.4.9.r14 with Linux Stable 4.9.189 merged in
• Reworked Xiaomi patchset with cleaned up unused MIUI-things and non-grus patches.
• Migrate camera driver to CAF (thanks to @krasCGQ)

R2 Changelog

• Add High-Brightness-Mode status for LineageOS's LiveDisplay
  (Fix "phone is starting"-loop issues on XenonHD)

Version 6.1   

Changelog

• Merge Upstream Linux 4.9.189
• Merge CAF tag LA.UM.7.8.r1-06700-SDM710.0 (audio and wlan modules)
• Revert several AOSP Q beta cgroups changes
• Reduce unused debugging on goodix_ts even more
• Security enhancement: disable coresight and don't export debug symbols
• Re-enable support for any type of ramdisk (fix bootlove issues on non-miui system)

Version 6.0-r2   

Changelog

• Merge Latest CAF Tag LA.UM.7.8.r1-06600-SDM710.0
• Greatly reduce zRAM limit to 1GB to prevent nonsense xiaomi tweaks
• Bring several cgroups patches from aosp's kernel/common
• Fix SoC not keeping full after charging overnight
• Disable I/O stats collections on queue's flag to get better latency
• Optimize ext4's fsync for non-rotational drives
  [builder-related changes]
• Fix clang's warning when building camera modules
• Silent several warning from dt compiler

R2 Changelog

• Enable several QTI's needed components for Non-MIUI system

Version 5.6   

Changelog

• Merge Upstream Linux v4.9.188
• Bring several cpufreq and scheduler improvement from aosp's kernel/common
• Bring zstd compression from aosp's kernel/common (lz4 are still used by default for zRAM, so experiment yourself)
• Set maximum zRAM creation limits to 2GB (Xiaomi use 2.6GB by default, so that's why I limit that to 1.5GB before)
• Also bring the lzo-rle compression from mainline (yes, I'm still with lz4)
• Fix SchedTune-boosted tasks being migrated to little-cluster (thanks to @RenderBroken)
• Let SchedTune's top-app boost value to be adjusted by user (たぶんｗｗｗ)
• Drop unused selftest from goodix_ts driver (even the QC Test are still working, so...)
• Reduce cpu idle overheads caused by event logging (thanks to @kdrag0n)
• Reduce unnecessary logging and overheads on wlan module (thanks to @arter97)

Version 5.5-r2   

Changelog

• Merge CAF tags to LA.UM.7.8.r1-06500-SDM710.0 (audio-kernel and Wi-Fi modules are updated too)
• Uses a new installer called bootwitch. Open-source too (with GPLv3)
• Add up/down freq transition rate-limits for schedutil.
• Fix energy compute when a cluster is only a cpu core in multi-cluster system.
• Fix massive cpufreq_times memory leaks
• Update LZ4 from upstream kernel/common/ (now our zRAM is even faster than before 🚀 🚀)

R2 Changelog

• Fix invalid WiFi signal after merging latest CAF Tags for WiFi driver

Version 5.4   

Changelog

• Add K-lapse v5.0
• Reduce unused debugging on the audio-kernel even more
• Remove Adrenoboost mechanism

Version 5.3   

Changelog

• Fix double tap to wake on non-MIUI ROM
• Add missing US Proximity Driver from kowalski-kernel
• Reduce some unused logging on audio-dsp
  [builder related changes]
• Remove my build script from the kernel tree

Version 5.2   

Changelog

• Merge Upstream Linux v4.9.186
• Fix several performance regression on camera caused by some caf patches
• NEON accelerated XOR implementation (performance improvement)
• Force disable trace_printk() usage (reduce unused debug logging)
• Disable Adreno Driver Logging
• Disable DRM drivers keep track of fence names by default (reduce CPU bottleneck)
• Remove Display P3 params being sets when initializing dsi_panel (caused by pyxis's missmerged)
• Remove exposure adjustment (sorry Havoc users)
  [builder related changes]
• speed up to 40-50% of build process when hitting techpack/audio/

Version 5.1   

Changelog

• Introduce brightness_clone interface for backlight driver (Fix several brightness issues especially with DC dimming)
• Synchronize Xiaomi TouchFeature updates (Needed by MIUI - sensor and gamemode)
• Synchronize Goodix Panel driver with Xiaomi updates
• and other display-related (doze and dimming) patches that also ported from Mi A3
  [builder related changes]
• Update dtc to upstream dtc-v1.4.6-9

Version 5.0   

Changelog

• Introduce exposure adjustment driver a.k.a PWM Flicker-free for non MIUI ROM
• Add sdfat from https://github.com/cryptomilk/kernel-sdfat
• Removed fsync control (Dangerous, can leads to memory corruptions)
• Several SELinux changes to reduce overhead
• Disable qcacld-3.0's qcom_rx_wakelock (Reduce wakeup times)
• Disable RCU boost and expedited grace periods after init (Reduce idle drain and CPU utils, increase boot time)
• Suppress verbose output during boot (Reduce boot time and logging)
• Disable memcg kernel and socket accounting (Reduce kmem caches overhead)
• Reduce early wakeups before vsync events (Reduce power consumption)
• Panel and FOD delay-after-sleep correction
• Revert backlight resend mechanism (fix 100ms dropped backlight on MIUI 10.3.3.0)
• Cleanup unused ramoops cmdline, driver and input boost value on defconfig
  [builder related changes]
• Set Optimization level 3 by default when clang is detected as toolchain
• Update dtc to upstream AOSP 1.4.4 (No need to get the prebuilts/misc/dtc anymore)

Version 4.5   

Changelog

• Upstream kernel to 4.9.185 (android-linux-stable)
• Allow enforcing deepest cluster idle state selection
• Use power efficient workqueues on the vmstat and audio-kernel
• Hardcode dirty_expire_centisecs to 30s (https://android-review.googlesource.com/c/platform/system/core/+/938362)
• Add IPA_RM12 and IPA_WS to the default block list (thanks to @pengus77 for more wakelock block list)
• Updated Goodix GT9886 firmware from MIUI Dev
• Cleaned-up unused touchscreen driver

Version 4.1   

Changelog

• Fix short-peaking issue on the speaker Sound Control

Version 4.0   

Changelog

• Add Sound Control for our Speaker
• Fix overlapped call and notification values on haptic control
• Cleanup debug bloat on Wi-Fi driver as much as possible
• Cleanup some unused xiaomi changes on driver departments (camera and fragmention)
• Removed schedutil_pixel (blu_schedutil and default schedutil is more than enough)
• Adjust Dynamic Stune Boost default to 10%
• Turned-down Performance cluster to 748MHz
• Keeping boosted freq that based on touch input a litte bit longer
• Enable workqueue power saving by default

Version 3.5   

Changelog

• Fix unavailable Fingerprint-on-Display on MIUI Developer
• Added Headphone Sound control
• Completely reduce GPU timeout

Version 3.0   

Changelog

• Remove xiaomi's memory management and restore it to the default Linux/CAF changes (zram, vmalloc, lmk).
• Remove unused xiaomi's package runtime info, manual watchdog invocation and other minor changes.
• Now this kernel uses compiled dtbo.img from the source code itself, thanks to @faust93 for the patch.
• Merged Qualcomm Atheros WLAN modules (LA.UM.7.8.r4-01000-SDM710.0).
• More tweaks on the CPU big cluster battery costs.
• Reduced the GPU idle timeout for earlier low-power state.

Version 2.5   

Changelog

• Updated to the new osmosis's AnyKernel3 (faster installation process)
• Load initramfs dynamically based on the ramdisk states (no need to magisk hexpatch anymore to preserve the Magisk)
• Add another CPU Governor : blu_schedutil. (Blu_schedutil is an EAS cpu governor from BluSpark kernel that focusing on battery life)
• Lower deboost freq on little CPUs
• UFS Tweaks : Remove unnecessary deep idle states and better pm_qos restrictions to save more battery
• Disable unused debugging
• Disable conservative, userspace, and ondemand cpu governor

Version 2.0   

Changelog

• Merge "nathanchance/android-kernel-clang/tree/msm-4.9-pie" (Now this kernel is compiled with aosp clang)
• Add CAF audio-kernel with Xiaomi's patchset and some fixes from Flex1911, (hope) it fixes proximity problems on some custom MIUI ROMs.
• Add schedutil CPU Governor from Pixel devices (rebranded as schedutil_pixel)

Version 1.5   

Changelog

• Merge Latest CAF tag LA.UM.7.8.r4-01000-SDM710.0
• Enable iptables TTL modification target
• Add more input boost patchsets for snappier app launch
• Memory optimization with lz4 zram and sigkill reaper
• Add accessible vibration adjustment and kcal color control

Version 1.0   

Changelog

• Initial Release