[PATCH v14 0/2] Add memory bandwidth management to NVIDIA Tegra DRM driver

Dmitry Osipenko digetx at gmail.com
Thu Mar 11 17:09:28 UTC 2021


11.03.2021 20:06, Dmitry Osipenko пишет:
> This series adds memory bandwidth management to the NVIDIA Tegra DRM driver,
> which is done using interconnect framework. It fixes display corruption that
> happens due to insufficient memory bandwidth.
> 
> Changelog:
> 
> v14: - Made improvements that were suggested by Michał Mirosław to v13:
> 
>        - Changed 'unsigned int' to 'bool'.
>        - Renamed functions which calculate bandwidth state.
>        - Reworked comment in the code that explains why downscaled plane
>          require higher bandwidth.
>        - Added round-up to bandwidth calculation.
>        - Added sanity checks of the plane index and fixed out-of-bounds
>          access which happened on T124 due to the cursor plane index.
> 
> v13: - No code changes. Patches missed v5.12, re-sending them for v5.13.
> 
> Dmitry Osipenko (2):
>   drm/tegra: dc: Support memory bandwidth management
>   drm/tegra: dc: Extend debug stats with total number of events
> 
>  drivers/gpu/drm/tegra/Kconfig |   1 +
>  drivers/gpu/drm/tegra/dc.c    | 362 ++++++++++++++++++++++++++++++++++
>  drivers/gpu/drm/tegra/dc.h    |  19 ++
>  drivers/gpu/drm/tegra/drm.c   |  14 ++
>  drivers/gpu/drm/tegra/hub.c   |   3 +
>  drivers/gpu/drm/tegra/plane.c | 127 ++++++++++++
>  drivers/gpu/drm/tegra/plane.h |  15 ++
>  7 files changed, 541 insertions(+)
> 

Michał, please let me know if v14 looks good to you. I'll appreciate
yours r-b, thanks in advance.


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