Overclock kernel

[NewbieOrange]

[Jay-9527]

你好，那个您可否方便发布一下安装方法？

[Jay-9527]

Hello, can you release the installation method conveniently?

[Jay-9527]

Because I found it didn't work when I installed it, I wrote the image on the MAC system.

[pulpoff]

It would be very nice if 5.12.19 kernel sources were released, as it is the only kernel that runs at 2.2Ghz on GT King.
I am interested in porting the freq changes to 5.15 tree to make it run much faster.
Thanks.

[pulpoff]

]

root@King:~# inxi -C
CPU: Info: 6-Core (2-Die) model: N/A variant-1: cortex-a53 variant-2: cortex-a73 bits: 64 type: MCP MCM
Speed: 1800 MHz min/max: 100/1992:1908 MHz Core speeds (MHz): 1: 1704 2: 1704 3: 1800 4: 1800 5: 1800 6: 1800

[pulpoff]

It seems there's a new tool and update here 👍 https://github.com/ophub/amlogic-s9xxx-armbian/tree/main/compile-kernel

I am trying to follow these steps to create a kernel now..

old amlogic-armbian tree 👍
amlogic-s9xxx build extract-kernel.sh LICENSE make README.cn.md README.md

new tree 👍
build-armbian compile-kernel LICENSE README.cn.md README.md rebuild recompile

Seems like kernel was compiled 👍
[SUCCESS] The modules is installed successfully.
[STEPS] Install headers ...
INSTALL /usr/local/include
[SUCCESS] The headers is installed successfully.
[STEPS] Install new image ...
sh ./arch/arm64/boot/install.sh 5.15.4-meson64-beta
arch/arm64/boot/Image System.map "/boot"
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 5.15.4-meson64-beta /boot/vmlinuz-5.15.4-meson64-beta
run-parts: executing /etc/kernel/postinst.d/dkms 5.15.4-meson64-beta /boot/vmlinuz-5.15.4-meson64-beta

• dkms: running auto installation service for kernel 5.15.4-meson64-beta
  Kernel preparation unnecessary for this kernel. Skipping...

Building module:
cleaning build area...
make -j8 KERNELRELEASE=5.15.4-meson64-beta -C /lib/modules/5.15.4-meson64-beta/build M=/var/lib/dkms/virtualbox/6.1.26/build...(bad exit status: 2)
ERROR (dkms apport): kernel package linux-headers-5.15.4-meson64-beta is not supported
Error! Bad return status for module build on kernel: 5.15.4-meson64-beta (x86_64)
Consult /var/lib/dkms/virtualbox/6.1.26/build/make.log for more information.
[ OK ]
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 5.15.4-meson64-beta /boot/vmlinuz-5.15.4-meson64-beta
update-initramfs: Generating /boot/initrd.img-5.15.4-meson64-beta
I: The initramfs will attempt to resume from /dev/dm-2
I: (/dev/mapper/vgubuntu-swap_1)
I: Set the RESUME variable to override this.
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 5.15.4-meson64-beta /boot/vmlinuz-5.15.4-meson64-beta
run-parts: executing /etc/kernel/postinst.d/update-notifier 5.15.4-meson64-beta /boot/vmlinuz-5.15.4-meson64-beta
run-parts: executing /etc/kernel/postinst.d/xx-update-initrd-links 5.15.4-meson64-beta /boot/vmlinuz-5.15.4-meson64-beta
I: /boot/initrd.img.old is now a symlink to initrd.img-5.14.0-19.2-liquorix-amd64
I: /boot/initrd.img is now a symlink to initrd.img-5.15.4-meson64-beta
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 5.15.4-meson64-beta /boot/vmlinuz-5.15.4-meson64-beta
Sourcing file /etc/default/grub' Sourcing file /etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.15.4-meson64-beta
Found initrd image: /boot/initrd.img-5.15.4-meson64-beta
Found linux image: /boot/vmlinuz-5.14.0-19.2-liquorix-amd64
Found initrd image: /boot/initrd.img-5.14.0-19.2-liquorix-amd64
Found linux image: /boot/vmlinuz-5.14.0-18.1-liquorix-amd64
Found initrd image: /boot/initrd.img-5.14.0-18.1-liquorix-amd64
done
[SUCCESS] The new image is installed successfully.
[STEPS] Find the uInitrd file.
[WARNING] The uInitrd file does not exist, jump over (2).
[STEPS] Packing the linux-5.15.4 related 3 files ...
[WARNING] Use the backup uInitrd file instead.
'/usr/src/amlogic-s9xxx-armbian-main/compile-kernel/tools/uInitrd/uInitrd-5.15.3' -> 'uInitrd-5.15.4-meson64-beta'
[SUCCESS] The [ boot-5.15.4-meson64-beta.tar.gz ] file is packaged.
[SUCCESS] The [ dtb-allwinner-5.15.4-meson64-beta.tar.gz ] file is packaged.
[SUCCESS] The [ dtb-amlogic-5.15.4-meson64-beta.tar.gz ] file is packaged.
[SUCCESS] The [ dtb-rockchip-5.15.4-meson64-beta.tar.gz ] file is packaged.
[SUCCESS] The [ modules-5.15.4-meson64-beta.tar.gz ] file is packaged.
[SUCCESS] The [ header-5.15.4-meson64-beta.tar.gz ] file is packaged.
[INFO] Kernel series files are stored in [ /usr/src/amlogic-s9xxx-armbian-main/compile-kernel/output ].
[STEPS] Clear the space and update-grub.
[SUCCESS] Space cleared successfully.
[SUCCESS] All processes have been completed.

root@King:/usr/src/5.15.4# ls
boot-5.15.4-meson64-beta.tar.gz dtb-amlogic-5.15.4-meson64-beta.tar.gz header-5.15.4-meson64-beta.tar.gz
dtb-allwinner-5.15.4-meson64-beta.tar.gz dtb-rockchip-5.15.4-meson64-beta.tar.gz modules-5.15.4-meson64-beta.tar.gz
root@King:/usr/src/5.15.4# armbian-up 5.15.4
Start update the armbian kernel.
Kernel version: 5.15.4
Start downloading the kernel from github.com ...
Update using [ boot-5.15.4-meson64-beta.tar.gz ] files. Please wait a moment ...
Try to using this files to update the kernel:
boot: boot-5.15.4-meson64-beta.tar.gz
dtb: dtb-amlogic-5.15.4-meson64-beta.tar.gz
modules: modules-5.15.4-meson64-beta.tar.gz
flippy_version: 5.15.4-meson64-beta
kernel_version: 5.15.4
K510: 1
Unpack [ 5.15.4-meson64-beta ] related files ...
02.01 Unpack [ boot-5.15.4-meson64-beta.tar.gz ] complete.
02.02 Unpack [ dtb-amlogic-5.15.4-meson64-beta.tar.gz ] complete.
02.03 Unpack [ modules-5.15.4-meson64-beta.tar.gz ] complete.
Successfully updated, automatic restarting...

$ uname -a
Linux King 5.15.4-meson64-beta #1 SMP PREEMPT Mon Nov 22 01:18:15 CET 2021 aarch64 aarch64 aarch64 GNU/Linux

[ophub]

When cross-compiling the Armbian kernel in a system such as Ubuntu under the environment of x86_64, the uInitrd file cannot be generated. When the kernel file is packaged, the file of the same kernel series in the repository will be automatically used instead. At present, cross-compilation in the x86_64 environment cannot completely replace the kernel compilation in the real Armbian environment, and the produced kernel is unstable.

Compile under the armbian system of your box. After the compilation is completed, the newly compiled kernel file will be cleaned up without changing the current system.

[pulpoff]

I found the freq table here 👍
root@mac:/usr/src/amlogic-s9xxx-armbian-main/compile-kernel/kernel/linux-5.15.4# pico arch/arm64/boot/dts/amlogic/meson-g12b-s922x.dtsi

the missing freqs are added with patch from here
armbian/build@d0831a7

[pulpoff]

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*

• Copyright (c) 2019 BayLibre, SAS
• Author: Neil Armstrong narmstrong@baylibre.com
  */

#include "meson-g12b.dtsi"

/ {
cpu_opp_table_0: opp-table-0 {
compatible = "operating-points-v2";
opp-shared;

	opp-100000000 {
		opp-hz = /bits/ 64 <100000000>;
		opp-microvolt = <731000>;
	};

	opp-250000000 {
		opp-hz = /bits/ 64 <250000000>;
		opp-microvolt = <731000>;
	};

	opp-500000000 {
		opp-hz = /bits/ 64 <500000000>;
		opp-microvolt = <731000>;
	};

	opp-667000000 {
		opp-hz = /bits/ 64 <667000000>;
		opp-microvolt = <731000>;
	};

	opp-1000000000 {
		opp-hz = /bits/ 64 <1000000000>;
		opp-microvolt = <731000>;
	};

	opp-1200000000 {
		opp-hz = /bits/ 64 <1200000000>;
		opp-microvolt = <731000>;
	};

	opp-1398000000 {
		opp-hz = /bits/ 64 <1398000000>;
		opp-microvolt = <761000>;
	};

	opp-1512000000 {
		opp-hz = /bits/ 64 <1512000000>;
		opp-microvolt = <791000>;
	};

	opp-1608000000 {
		opp-hz = /bits/ 64 <1608000000>;
		opp-microvolt = <831000>;
	};

	opp-1704000000 {
		opp-hz = /bits/ 64 <1704000000>;
		opp-microvolt = <861000>;
	};

	opp-1896000000 {
		opp-hz = /bits/ 64 <1896000000>;
		opp-microvolt = <981000>;
	};

	opp-1992000000 {
		opp-hz = /bits/ 64 <1992000000>;
		opp-microvolt = <1001000>;
	};

	opp-1908000000 {
		opp-hz = /bits/ 64 <1908000000>;
		opp-microvolt = <1030000>;
	};
	opp-2016000000 {
		opp-hz = /bits/ 64 <2016000000>;
		opp-microvolt = <1040000>;
	};
};

cpub_opp_table_1: opp-table-1 {
	compatible = "operating-points-v2";
	opp-shared;

	opp-100000000 {
		opp-hz = /bits/ 64 <100000000>;
		opp-microvolt = <751000>;
	};

	opp-250000000 {
		opp-hz = /bits/ 64 <250000000>;
		opp-microvolt = <751000>;
	};

	opp-500000000 {
		opp-hz = /bits/ 64 <500000000>;
		opp-microvolt = <751000>;
	};

	opp-667000000 {
		opp-hz = /bits/ 64 <667000000>;
		opp-microvolt = <751000>;
	};

	opp-1000000000 {
		opp-hz = /bits/ 64 <1000000000>;
		opp-microvolt = <771000>;
	};

	opp-1200000000 {
		opp-hz = /bits/ 64 <1200000000>;
		opp-microvolt = <771000>;
	};

	opp-1398000000 {
		opp-hz = /bits/ 64 <1398000000>;
		opp-microvolt = <791000>;
	};

	opp-1512000000 {
		opp-hz = /bits/ 64 <1512000000>;
		opp-microvolt = <821000>;
	};

	opp-1608000000 {
		opp-hz = /bits/ 64 <1608000000>;
		opp-microvolt = <861000>;
	};

	opp-1704000000 {
		opp-hz = /bits/ 64 <1704000000>;
		opp-microvolt = <891000>;
	};

	opp-1800000000 {
		opp-hz = /bits/ 64 <1800000000>;
		opp-microvolt = <981000>;
	};

	opp-1908000000 {
		opp-hz = /bits/ 64 <1908000000>;
		opp-microvolt = <1022000>;
	};

            opp-2016000000 {
                    opp-hz = /bits/ 64 <2016000000>;
                    opp-microvolt = <911000>;
            };

            opp-2108000000 {
                    opp-hz = /bits/ 64 <2108000000>;
                    opp-microvolt = <951000>;
            };

            opp-2208000000 {
                    opp-hz = /bits/ 64 <2208000000>;
                    opp-microvolt = <1011000>;
            };
            opp-2304000000 {
                    opp-hz = /bits/ 64 <2304000000>;
                    opp-microvolt = <1030000>;
            };
            opp-2400000000 {
                    opp-hz = /bits/ 64 <2400000000>;
                    opp-microvolt = <1040000>;
            };

};

};

[ophub]

Try to adjust and compile.

[pulpoff]

Well, it worked


!

[pulpoff]

https://browser.geekbench.com/v5/cpu/11129236

and before the modification:
https://browser.geekbench.com/v5/cpu/11128646

[ophub]

You can write a tutorial about your modification plan, and everyone can refer to it.

You can customize the signature of the compiled kernel. If you want to share it, you can publish it. I will put it in the kernel library for friends who need it.

[pulpoff]

i have uploaded the kernel here : https://vp5.net/king/

I also enabled 2.4Ghz support and 2Ghz on A53 cores, but I guess the -oc dtb file does not support those yet.

[pulpoff]

uname -a
Linux King 5.14.21-pulp #5 ZEN SMP PREEMPT Mon Nov 22 04:40:39 CET 2021 aarch64 aarch64 aarch64 GNU/Linux

I compiled latest ZEN kernel with Freq patches, you can get it from
https://vp5.net/king

/