[META] 3D acceleration support for LG100/LG110 (LS7A2000 GPU)

[xen0n]

No description provided.

[xry111]

Due to some reasons it's highly unlikely the vendor would be able to publish an open-source driver even if its engineers will to do all the work.

Caution

And if you plan to join the effort reverse-engineering the old-world or new-world closed-source driver: please don't search online or ask others for those reasons. You may be tainted simply by knowing the reasons. YOU ARE WARNED.

edited by xen0n: make the alert really stand out

[MingcongBai]

Preliminary new-world LoongGPU driver package under internal testing, see test results.

[MingcongBai]

Well they just released the driver package out of nowhere this morning...

Kernel components (DKMS):

• https://pkg.loongnix.cn/loongnix/25/pool/main/l/loonggpu-kernel-dkms/

Userspace components (OpenGL, DDX, etc.):

• https://pkg.loongnix.cn/loongnix/25/pool/main/l/loong-gpucomp/
• https://pkg.loongnix.cn/loongnix/25/pool/main/l/loonggl/
• https://pkg.loongnix.cn/loongnix/25/pool/main/l/loonggpu-driver/
• https://pkg.loongnix.cn/loongnix/25/pool/main/l/loonggpu-settings/
• https://pkg.loongnix.cn/loongnix/25/pool/main/x/xserver-xorg-video-loonggpu/

Firmware:

• https://pkg.loongnix.cn/loongnix/25/pool/main/f/firmware-loongson-graphics/

[xry111]

Note that the license of loonggpu-driver explicitly forbids reverse engineering.

[phorcys]

cat /usr/share/doc/loonggpu-driver/copyrigh

Note that the license of loonggpu-driver explicitly forbids reverse engineering.
...
2.1.3 Limitations.
.
No Reverse Engineering. Customer may not reverse engineer, decompile, or disassemble the SOFTWARE, nor attempt in any other manner to obtain the source code.
...

[xry111]

Related to #6. But for reverse engineers: remember that you may be tainted simply by opening the references in #6.

[xen0n]

Looking at the copyright notice of loonggpu-kernel-dkms version 1.0.1-alpha-lnd25.5:

[snip]
License: LOONGGPU-graphics-drivers
[snip]
 2.1.3  Limitations.
 .
 No Reverse Engineering.  Customer may not reverse engineer, decompile, or disassemble the SOFTWARE, nor attempt in any other manner to obtain the source code.
 .
 No Separation of Components.  The SOFTWARE is licensed as a single product.  Its component parts may not be separated for use on more than one computer, nor otherwise used separately from the other parts.
 .
 No Rental.  Customer may not rent or lease the SOFTWARE to someone else.
[snip]

Note the "No Separation of Components" part -- this is a leftover from an earlier revision of NVIDIA blob driver EULA that predated the GSP models, which for NVIDIA prohibited the free drivers from re-using the firmware blob distributed with the blob driver, which is problematic because the firmware cannot be built in a legally unencumbered way. NVIDIA has fixed the EULA wording in May 2023 to allow for extraction of separate components from the commercial driver.

For Loongson, it's public info that the LoongGPU needs firmware to work (see the firmware-loongson-graphics package in Loongnix 25 repo), but the LoongGPU driver EULA currently lacks the separate-component permission. We need Loongson legal dept's help in order to be able to legally re-use the LoongGPU firmware at all.

[xen0n]

Update: yesterday evening Loongson maintainers said they "will look into it" regarding the "no separation of components" clause.