where is this kernel from?

[lattice0]

Hello, where does this kernel comes from?

https://github.com/MiCode/Xiaomi_Kernel_OpenSource/commits/lime-q-oss

is very old and cannot be built, I applied some patches but still some needs to be done. However, that's the official one. I wanted to know where did you get this from and why/how it's much more updated

Thank you!

[lattice0]

May you kindly help me figuring out what I'm doing wrong? Because my kernel won't boot.

I'm trying to compile this kernel https://github.com/MiCode/Xiaomi_Kernel_OpenSource/tree/lime-q-oss for my Poco M3

I did:

export ARCH=arm64 && export SUBARCH=arm64
export CROSS_COMPILE=/opt/aosp_prebuilts/aarch64-linux-android-4.9/bin/aarch64-linux-android-
export DTC_EXT="/opt/google_misc/misc/linux-x86/dtc/dtc"
make ARCH=arm64 CC=clang CLANG_TRIPLE=aarch64-linux-gnu- vendor/citrus-perf_defconfig
make ARCH=arm64 CC=clang CLANG_TRIPLE=aarch64-linux-gnu- EXTRA_CFLAGS="-I $PWD/techpack/display/pll/ -I $PWD/techpack/camera/drivers/cam_sensor_module/cam_cci/  -I $PWD/techpack/camera/drivers/cam_req_mgr -DSDCARDFS_VERSION= -I $PWD/" -j$(nproc --all) 2>&1 | tee kernel.log

and unpacked/repacked boot.img with

unpackbootimg -i boot.img -o boot_img_unpacked

mkbootimg --kernel "$SCRIPT_DIR/devices/$DEVICE/kernel/k/arch/arm64/boot/Image.gz" \
    --ramdisk boot.img-ramdisk \
    --dtb boot.img-dtb \
    --cmdline "$(< boot.img-cmdline)" \
    --base "$(< boot.img-base)" \
    --kernel_offset "$(< boot.img-kernel_offset)" \
    --ramdisk_offset "$(< boot.img-ramdisk_offset)" \
    --tags_offset "$(< boot.img-tags_offset)" \
    --dtb_offset "$(< boot.img-dtb_offset)" \
    --os_version "$(< boot.img-os_version)" \
    --os_patch_level "$(< boot.img-os_patch_level)" \
    --pagesize "$(< boot.img-pagesize)" \
    --header_version "$(< boot.img-header_version)" \
    --hashtype "$(< boot.img-hashtype)" \
    --board "$(< boot.img-board)" \
    -o ../boot.img

but it won't boot. I get stuck on the Poco M3 screen. I tried unpacking/repacking the original boot.img with the original kernel just to see if I was repacking wrong but it worked, so my repack is working.

I think the issue might be with dtbo inside the kernel, because my compiled kernel has 28mb vs 32mb from the original one. It's worth noting that the original one is for Android 11 and the one I compiled is for Android 10 but I doubt this is the problem because both are 4.19.x and usually one kernel works over 2 Android versions.

I also tried adding CONFIG_BUILD_ARM64_DT_OVERLAY=y to

vendor/citrus-perf_defconfig but it also won't boot.