| Message ID | 20201228154920.18846-1-digetx@gmail.com |
|---|---|
| Headers | show |
| Series | Introduce memory interconnect for NVIDIA Tegra SoCs | expand |
On Mon, Dec 28, 2020 at 06:49:18PM +0300, Dmitry Osipenko wrote: > Now Internal and External memory controllers are memory interconnection > providers. This allows us to use interconnect API for tuning of memory > configuration. EMC driver now supports OPPs and DVFS. > > Tested-by: Nicolas Chauvet <kwizart@gmail.com> > Acked-by: Georgi Djakov <georgi.djakov@linaro.org> > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > drivers/memory/tegra/Kconfig | 1 + > drivers/memory/tegra/tegra124-emc.c | 320 +++++++++++++++++++++++++++- > drivers/memory/tegra/tegra124.c | 82 ++++++- > 3 files changed, 391 insertions(+), 12 deletions(-) Thanks, applied. Best regards, Krzysztof
28.12.2020 18:49, Dmitry Osipenko пишет: > 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 Controller drivers provide facility for memory bandwidth > management via interconnect API. Let's wire up the interconnect API > support to the DC driver in order to fix the distorted display output > on T30 Ouya, T124 TK1 and other Tegra devices. > > Tested-by: Peter Geis <pgwipeout@gmail.com> > Tested-by: Nicolas Chauvet <kwizart@gmail.com> > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- Thierry, I'm looking forward to yours review. Only DRM patches are left unmerged yet in this series.
Add interconnect support to Tegra124 EMC and display controller drivers. Changelog: v12: - This is a re-send of the remaining v11 patches [1] that didn't make into v5.11 kernel. No code changes. [1] https://lore.kernel.org/lkml/20201203192439.16177-1-digetx@gmail.com/ Dmitry Osipenko (5): memory: tegra124-emc: Make driver modular memory: tegra124-emc: Continue probing if timings are missing in device-tree memory: tegra124: Support interconnect framework drm/tegra: dc: Support memory bandwidth management drm/tegra: dc: Extend debug stats with total number of events drivers/clk/tegra/Kconfig | 3 + drivers/clk/tegra/Makefile | 2 +- drivers/clk/tegra/clk-tegra124-emc.c | 41 ++- drivers/clk/tegra/clk-tegra124.c | 26 +- drivers/clk/tegra/clk.h | 18 +- drivers/gpu/drm/tegra/Kconfig | 1 + drivers/gpu/drm/tegra/dc.c | 359 +++++++++++++++++++++++++ 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 | 121 +++++++++ drivers/gpu/drm/tegra/plane.h | 15 ++ drivers/memory/tegra/Kconfig | 4 +- drivers/memory/tegra/tegra124-emc.c | 377 ++++++++++++++++++++++++--- drivers/memory/tegra/tegra124.c | 82 +++++- include/linux/clk/tegra.h | 8 + include/soc/tegra/emc.h | 16 -- 17 files changed, 1038 insertions(+), 71 deletions(-) delete mode 100644 include/soc/tegra/emc.h