[PATCH 00/10] SI power management fixes (v3)

[Alex Deucher]

On Thu, Aug 28, 2025 at 11:11 AM Timur Kristóf <timur.kristof at gmail.com> wrote:
>
> This series fixes some power management issues on SI,
> addressing the feedback I got for the previous versions.
>
> Additionally, the following improvements were made:
>
> There is now a patch that increases the SMC timeout.
> This gets rid of some errors that happened when
> switching between power states. Apparently the SMC can
> sometimes take a long time.
>
> Also removed one of the ad-hoc fixes from si_dpm because
> it didn't actually address anything, and edited that
> patch to focus on just solving the flickering on Oland.
>
> And edited the si_upload_smc_data patch yet again to
> program the soft registers to zero when there are no
> displays connected.
>
> Timur Kristóf (10):
>   drm/amdgpu: Power up UVD 3 for FW validation (v2)
>   drm/amd/pm: Disable ULV even if unsupported (v3)
>   drm/amd/pm: Increase SMC timeout on SI and warn (v3)
>   drm/amd/pm: Fix si_upload_smc_data (v3)
>   drm/amd/pm: Adjust si_upload_smc_data register programming (v3)
>   drm/amd/pm: Treat zero vblank time as too short in si_dpm (v3)
>   drm/amd/pm: Disable MCLK switching with non-DC at 120 Hz+ (v2)
>   drm/amd/pm: Disable SCLK switching on Oland with high pixel clocks
>     (v3)
>   drm/amd/pm: Remove wm_low and wm_high fields from amdgpu_crtc (v2)
>   drm/amd/pm: Print VCE clocks too in si_dpm (v3)

Series is:
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
And applied.

Thanks!

Alex

>
>  drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h     |  2 -
>  drivers/gpu/drm/amd/amdgpu/dce_v10_0.c       |  3 +-
>  drivers/gpu/drm/amd/amdgpu/dce_v11_0.c       |  3 +-
>  drivers/gpu/drm/amd/amdgpu/dce_v6_0.c        |  1 -
>  drivers/gpu/drm/amd/amdgpu/dce_v8_0.c        |  3 +-
>  drivers/gpu/drm/amd/amdgpu/uvd_v3_1.c        | 29 +++++-
>  drivers/gpu/drm/amd/pm/amdgpu_dpm_internal.c |  7 ++
>  drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c   | 93 ++++++++++++++------
>  drivers/gpu/drm/amd/pm/legacy-dpm/si_smc.c   | 26 +++++-
>  9 files changed, 125 insertions(+), 42 deletions(-)
>
> --
> 2.51.0
>