On Mon, Jun 21, 2021 at 07:19:15AM +0300, Dmitry Osipenko wrote: > 07.06.2021 01:40, Dmitry Osipenko пишет: > > 01.06.2021 07:21, 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: > >> > >> v18: - Moved total peak bandwidth from CRTC state to plane state and removed > >> dummy plane bandwidth state initialization from T186+ plane hub. This > >> was suggested by Thierry Reding to v17. > >> > >> - I haven't done anything about the cursor's plane bandwidth which > >> doesn't contribute to overlapping bandwidths for a small sized > >> window because it works okay as-is. > > > > Thierry, will you take these patches for 5.14? > > > > The display controller does _NOT_WORK_ properly without bandwidth > management. That's surprising. So either it has never worked before (which I think I'd know) or something has caused this regression recently. In the latter case we need to identify what that was and revert (or fix) it. > Can we get this patch into 5.14? What is the problem? There was not enough time to review and test this, so I didn't feel comfortable picking it up so close to the -rc6 cut-off. I plan to pick this up early in the v5.14 release cycle and target v5.15. Thierry
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