Update for Petalinux 2020.1

[p00chie]

Hi ikwzm,

is there any chance you could update the repo for the petalinux 2020.1 ?
Unfortunately i cannot install
dpkg --install zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga_0.1.2-0_arm64.deb
Since petalinux changed to a 5.4.0 kernel.

root@localhost:/home/wachsm/ik/ZynqMP-FPGA-Xserver-master# dpkg -i zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga_0.1.2-0_arm64.deb
Selecting previously unselected package zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga.
(Reading database ... 84092 files and directories currently installed.)
Preparing to unpack zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga_0.1.2-0_arm64.deb ...
Unpacking zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga (0.1.2-0) ...
dpkg: dependency problems prevent configuration of zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga:
 zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga depends on linux-image-4.19.0-xlnx-v2019.2-zynqmp-fpga; however:
  Package linux-image-4.19.0-xlnx-v2019.2-zynqmp-fpga is not installed.

dpkg: error processing package zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 zynqmp-gpu-4.19.0-xlnx-v2019.2-zynqmp-fpga

I could support you with any source you might need from petalinux 2020.1

Regards 👍

[ikwzm]

Thank you for the issue.

Unfortunately, the Mali Driver provided in this repository does not support Linux Kernel 5.4.
The source code for the Mali Driver used in this repository could not be built for Linux Kernel 5.4.

Also, since Lima (Open Source Mali Driver) has been introduced to the mainline from Linux Kernel 5.2, this repository is not supported for Linux Kernel 5.4.

I hope you will understand this.

[ikwzm]

I made zynqmp-gpu-kmod-dpkg compatible with Linux Kernel 5.4 as a trial.
There are no official plans for a release, but give it a try.

Note that zynqmp-gpu-kmod-dpkg provides an environment for making Debian packages.
The Debian Package itself is not included.

shell$ git clone --recursive --depth=1 -b v0.1.3-rc.1 git://github.com/ikwzm/zynqmp-gpu-kmod-dpkg
shell$ cd zynqmp-gpu-kmod-dpkg

[p00chie]

Hi ikwzm,
just to clarify what i am using:

• i am using the petalinux kernel 5.4 with bsp settings for the zcu106
• the rootfs is a base ubuntu 20.04
  what i did:
• i added the uio kernel module and i can successfully communicate with my fpga subsystem
• i could build the mali.ko driver:
  • apt-get install linux-headers-5.4.0-42-generic
  • link usr/lib/modules/5.4.0-42-generic/build/ to usr/lib/modules/5.4.0/
  • edit arm.c --> there was some bogus with the mali_read_phys function
  • build mali.ko
• unfortunately to install the packet there was an error:
  dpkg: dependency problems prevent configuration of zynqmp-gpu-5.4.0:
  zynqmp-gpu-5.4.0 depends on linux-image-5.4.0; however:
  Package linux-image-5.4.0 is not installed.
  I think i could edit the control.template to fix this dep.

But in the end i got my mali.ko and it could be loaded.
I can see it with cat /proc/interrupts
There are also some mali.ko files from the petalinux build that i can use too. They seem to work too. So i the end i don't have to build the kernel object?

The next step would be to test the mali gpu with your repo:
https://github.com/ikwzm/ZynqMP-FPGA-Xserver

[p00chie]

After loading the correct kernel module and using:

 export DISPLAY=:0.0
 /usr/bin/Xorg -depth 16&

from ug1209
i could start the tricube appilcation and saw the correct output :)
a cat /proc/interrupts gave the the validation:
20: 62733 0 0 0 GICv2 164 Level Mali_GP_MMU, Mali_GP, Mali_PP0_MMU, Mali_PP0, Mali_PP1_MMU, Mali_PP1
and still counting interrupts.
Now i have to figure out what is actually needed to reproduce this ...