[PATCH v15 0/2] Add memory bandwidth management to NVIDIA Tegra DRM driver

[Dmitry Osipenko <digetx@gmail.com>]

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:

v15: - Corrected tegra_plane_icc_names[] NULL-check that was partially lost
       by accident in v14 after unsuccessful rebase.

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(+)

-- 
2.29.2