Re: [PATCH 0/4] drm/amdgpu: Use amdgpu by default on SI and CIK dedicated GPUs (v2)

["Christian König" <christian.koenig@amd.com>]

On 11/14/25 13:07, Timur Kristóf wrote:
> Changed in v2 of the patch series:
> Updated documentation in Kconfig file.
> 
> Now that the DC analog connector support and VCE1 support
> landed, amdgpu is at feature parity with the old radeon
> driver on SI and CIK dedicated GPUs.
> 
> Let's enable amdgpu by default on SI and CIK dedicated GPUs.
> 
> Why?
> 
> Compared to the old radeon driver, amdgpu offers better
> performance, more display features through DC,
> as well as support for Vulkan 1.3 through RADV.
> (Note, although the hardware is 10 years old, the R9 290
> still appears in the Steam hardware survey for Linux
> at a modest 0.25%.)
> 
> What can these GPUs actually do on amdgpu?
> 
> Hawaii (eg. R9 390X) can even play modern games such as
> Baldur's Gate 3 or Cyberpunk 2077 and gives a decent user
> experience considering the age of the hardware.
> Tahiti and Pitcairn can play some modern games, albeit
> at lower resolutions and lower frame rates. They are
> mainly held back by a low amount of VRAM (2~3 GiB).
> The other SI and CIK "gaming" GPUs are mainly useful
> for playing games from their era (the mid-2010s)
> or less demanding games in general.
> 
> CIK dedicated GPUs are the following:
> 
> Hawaii (2013~2015):
>   Radeon R9 290 and 390 series
> Bonaire (2013~2016):
>   Radeon HD 7790/8870
>   Radeon R7 260/360/450, RX 455
>   FirePro W5100
>   various mobile GPUs
> 
> SI dedicated GPUs are the following:
> 
> Tahiti (2012~2014):
>   Radeon HD 7870 XT, 7950, 7970, 7990, 8950, 8970, 8990
>   Radeon R9 280, 280X
>   FirePro W8000, W9000, D500, D700, S9000, S9050, S10000
> Pitcairn (2012~2015):
>   Radeon HD 7850, 7870, 7970M, 8870, 8970M
>   Radeon R9 265, 270/370 series, M290X, M390
>   FirePro W5000, W7000, D300, R5000, S7000
> Cape Verde (2012~2016):
>   Radeon HD 7730, 7750, 7770, 8730, 8760
>   Radeon R7 250E, 250X, 350, 450
>   FirePro W600, W4100, M4000, M6000
> Oland (2013~2019):
>   Radeon HD 8570, 8670
>   Radeon R5 240, 250, 330, 340, 350, 430, 520, 610
>   FirePro W2100
>   various mobile GPUs
> Hainan (2013~2016):
>   various mobile GPUs

Reviewed-by: Christian König <christian.koenig@amd.com> for the entire series.

I think Alex already merged the CIK switch, but that should be trivial to resolve.

Thanks,
Christian.

> 
> Timur Kristóf (4):
>   drm/radeon: Refactor how SI and CIK support is determined
>   drm/amdgpu: Refactor how SI and CIK support is determined
>   drm/amdgpu: Use amdgpu by default on CIK dedicated GPUs (v2)
>   drm/amdgpu: Use amdgpu by default on SI dedicated GPUs (v2)
> 
>  drivers/gpu/drm/amd/amdgpu/Kconfig      |  24 ++--
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 160 ++++++++++++++----------
>  drivers/gpu/drm/radeon/radeon_drv.c     |  81 +++++++-----
>  3 files changed, 162 insertions(+), 103 deletions(-)
>