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(+)