WINE Staging have removed CUDA support ?

[aug]

Thanks for reading my topic.
Host Ubuntu 20.04.6 GF600 driver 470. In an WINE Staging previous version had nvcuda files in WINE directory. I not remember what is the previous version.
Here Wine Staging 8.7 not run cuda and not any nvcuda files in WINE directory.
In host OS CUDA run correctly.

CUDA support was removed in WINE Staging ? If not was removed because not any nvcuda.dll in WINE directory ?

Thanks for your reply.

[jkfloris]

The nvidia dll patches have been disabled since Wine staging 7.22.
You can add these yourself by using this installer.

[aug]

@jkfloris

All good with you ?
You help very much in WINE forums =)
Thanks for sharing the information about CUDA files removed from WINE.
That action was because anything related with Nvidia license ?

Have an nice week.

[jkfloris]

I also found the reason on the winehq-devel mailing list:

The basic, is that the nvcuda and the other nv dll's need to be
converted to the unix function call syntax.
Considering, the first patch that implement the nvcuda has around 245
functions, that is a huge amount of effort (Time) to change over.

We are still trying to workout, if we will convert it over. This dll
and the other nv* at present, are never going to be upstreamed (at this
stage).

There has been some talk that these nv*/amd_ags* dlls should be external
project(s) and be maintained there. These are vendor specific DLL's
after all, so windows doesn't have them by default. So technically wine
shouldn't either. There is already a project for nvapi but that wont
help in this case.

On the other side of things, some games and applications expect them to
be there in certain scenarios. There is a balance that need to be
found, which is the hard part.

[aug]

Thanks for sharing the information above.