kernel/linux.git/drivers/memory/tegra/tegra20.c, branch v6.6.141

memory: Explicitly include correct DT includes

2023-07-25T20:09:37+00:00

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20230714174717.4059518-1-robh@kernel.org Signed-off-by: Krzysztof Kozlowski

memory: tegra: Parameterize interrupt handler

2021-06-03T19:49:41+00:00

Tegra20 requires a slightly different interrupt handler than Tegra30 and later, so parameterize the handler, so that each SoC implementation can provide its own. Signed-off-by: Thierry Reding Link: https://lore.kernel.org/r/20210602163302.120041-8-thierry.reding@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: tegra: Make per-SoC setup more generic

2021-06-03T19:49:41+00:00

The current per-SoC setup code runs at a fairly arbitrary point during probe, thereby making it less flexible for other SoC generations. Move the call around slightly (after only the very basic, common setup that applies to all SoC generations has been performed), which will allow it to be used for other implementations. Signed-off-by: Thierry Reding Link: https://lore.kernel.org/r/20210602163302.120041-6-thierry.reding@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: tegra: Push suspend/resume into SoC drivers

2021-06-03T19:49:41+00:00

Continuing the scheme of unification, push suspend/resume callbacks into per-SoC driver so that they can be properly parameterized. Signed-off-by: Thierry Reding Link: https://lore.kernel.org/r/20210602163302.120041-5-thierry.reding@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: tegra: Introduce struct tegra_mc_ops

2021-06-03T19:49:40+00:00

Subsequent patches will introduce further callbacks, so create a new struct tegra_mc_ops to collect all of them in a single place. Move the existing ->init() callback into the new structure. Signed-off-by: Thierry Reding Link: https://lore.kernel.org/r/20210602163302.120041-4-thierry.reding@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: tegra20: Protect debug code with a lock

2021-04-01T17:58:22+00:00

Simultaneous accesses to MC_STAT h/w shouldn't be allowed since one collection process stomps on another. There is no good reason for polling stats in parallel in practice, nevertheless let's add a protection lock, just for consistency. Signed-off-by: Dmitry Osipenko Link: https://lore.kernel.org/r/20210323210446.24867-2-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: tegra20: Correct comment to MC_STAT registers writes

2021-04-01T17:58:22+00:00

The code was changed multiple times and the comment to MC_STAT registers writes became slightly outdated. The MC_STAT programming now isn't hardcoded to the "bandwidth" mode, let's clarify this in the comment. Signed-off-by: Dmitry Osipenko Link: https://lore.kernel.org/r/20210323210446.24867-1-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: tegra20: Add debug statistics

2021-04-01T17:58:22+00:00

Add debug statistics collection support. The statistics is available via debugfs in '/sys/kernel/debug/mc/stats', it shows percent of memory controller utilization for each memory client. This information is intended to help with debugging of memory performance issues, it already was proven to be useful by helping to improve memory bandwidth management of the display driver. Signed-off-by: Dmitry Osipenko Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210319130933.23261-1-digetx@gmail.com

memory: tegra20: Support interconnect framework

2020-11-26T17:50:36+00:00

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. Signed-off-by: Dmitry Osipenko Link: https://lore.kernel.org/r/20201104164923.21238-36-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55+00:00

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman