mbox series

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

Message ID 20210311170606.7543-1-digetx@gmail.com (mailing list archive)
Headers show
Series Add memory bandwidth management to NVIDIA Tegra DRM driver | expand

Message

Dmitry Osipenko March 11, 2021, 5:06 p.m. UTC
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(+)

Comments

Dmitry Osipenko March 11, 2021, 5:09 p.m. UTC | #1
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.