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

["Timur Kristóf" <timur.kristof@gmail.com>]

On Fri, 2025-11-14 at 09:38 -0500, Alex Deucher wrote:
> I had already applied the CIK series, so I rebased this series and
> applied the documentation update and the SI patch.
> 
> Thanks,
> 
> Alex

Perfect, thank you!


> 
> On Fri, Nov 14, 2025 at 7:16 AM Christian König
> <christian.koenig@amd.com> wrote:
> > 
> > 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(-)
> > > 
> >