linux-kernel - Include ASPEED ast-drm 1.15.1 video driver in kernel tree

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Message-ID: <194c4656963debcf074d87e89ab1a829@3xo.fr>
Date: Wed, 12 Feb 2025 19:58:50 +0100
From: Nicolas Baranger <nicolas.baranger@....fr>
To: dri-devel@...ts.freedesktop.org
Cc: Tzimmermann <tzimmermann@...e.de>, airlied@...hat.com, Jocelyn Falempe
 <jfalempe@...hat.com>, Maarten Lankhorst
 <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 linux-kernel@...r.kernel.org
Subject: Include ASPEED ast-drm 1.15.1 video driver in kernel tree

Dear maintener

I did include ast-drm driver version 1.15.1 (in replacement of version 
0.1.0) on the new mainline kernel too (6.14.0-rc2) and I issue a new 
dkms patch 

Last DKMS patch had been sucessfully tested on mainline.
And last ast.ko version 1.15.1 included in linux tree had also been 
sucessfully tested 

Online directory is updated with :
- new DKMS patch
- new DKMS srouces
- new DKMS debian package
- new tarball of mainline included ast_new ported in kernel tree
- new kernel debian package (mainline with ast_new)


NB: online directory is here: 
https://xba.soartist.net/ast-drm_nba_20250211/

Please let me know what I should do to see this change in linux-next

Thanks for help

Kind regards
Nicolas Baranger


Le 2025-02-11 19:15, Nicolas Baranger a écrit :

> Dear maintener
> 
> For my own usage, I did make work the ASPEED ast-drm 1.15.1 video 
> driver on mainline kernel (6.13.0 + 6.13.1).
> 
> ASPEED video driver is availiable here:
> https://www.aspeedtech.com/file/support/Linux_DRM_1.15.1_4.tar.gz
> 
> But it only work for LTS kernel
> So I modify the DKMS package and I build a new Debian DKMS package with 
> the adapted  source.
> My patch can be find here :
> https://xba.soartist.net/ast-drm_nba_20250211/nba-dkms/astdiff.patch
> See the README:
> https://xba.soartist.net/ast-drm_nba_20250211/nba-dkms/README
> 
> Using this new 'ast 1.15.1' driver, performance are amazing compared to 
> the 'ast' driver include in kernel tree, specially when using a 
> discrete GPU and offloading VULKAN / 3D on it but using AST VGA card as 
> the main video card and as the main and only video output (the discrete 
> GPU is used only for offloading 3D or for cuda/opencl)
> 
> So to make things easier, I include the new 'ast 1.15.1' driver in 
> kernel tree as AST_NEW : linux-6.13.1-ast/drivers/gpu/drm/ast_new'
> It's working fine as you can see on this video :
> https://xba.soartist.net/ast-drm_nba_20250211/vulcan_nvidia_prime_render_offload_on_ast_vga_card.webm
> 
> I upload all the work I've done here :
> https://xba.soartist.net/ast-drm_nba_20250211/
> 
> See the global README :
> https://xba.soartist.net/ast-drm_nba_20250211/README
> 
> and the README in nba-kernel sub-directory :
> https://xba.soartist.net/ast-drm_nba_20250211/nba-kernel/README
> 
> I'm not a developer so please let me know if I made the things the 
> right way and if this new 'ast 1.15.1' driver can be ported to 
> linux-next or linux-? ?
> If you need more explanations, do not hesitate to contact me, I would 
> be happy to help
> 
> Kind regards
> Nicolas Baranger