Re: [PATCH v14 1/2] drm/tegra: dc: Support memory bandwidth management

2021-03-11 Thread Dmitry Osipenko
11.03.2021 20:06, Dmitry Osipenko пишет: > +static const char * const tegra_plane_icc_names[TEGRA_DC_LEGACY_PLANES_NUM] > = { > + "wina", "winb", "winc", "", "", "", "cursor", > +}; > + > +int tegra_plane_interconnect_init(struct tegra_plane *plane) > +{ > + const char *icc_name = tegra_pl

[PATCH v14 1/2] drm/tegra: dc: Support memory bandwidth management

2021-03-11 Thread Dmitry Osipenko
Display controller (DC) performs isochronous memory transfers, and thus, has a requirement for a minimum memory bandwidth that shall be fulfilled, otherwise framebuffer data can't be fetched fast enough and this results in a DC's data-FIFO underflow that follows by a visual corruption. The Memory