[PATCH v4 0/5] memory: tegra: Support EMC dfs on Tegra186/Tegra194

Aaron Kling via B4 Relay posted 5 patches 3 months, 1 week ago
drivers/memory/tegra/tegra186-emc.c      | 132 ++++++++++++++++++++++++++++++-
drivers/memory/tegra/tegra186.c          |  48 +++++++++++
drivers/memory/tegra/tegra194.c          |  59 +++++++++++++-
include/dt-bindings/memory/tegra186-mc.h |   4 +
include/dt-bindings/memory/tegra194-mc.h |   6 ++
5 files changed, 246 insertions(+), 3 deletions(-)
[PATCH v4 0/5] memory: tegra: Support EMC dfs on Tegra186/Tegra194
Posted by Aaron Kling via B4 Relay 3 months, 1 week ago
This series borrows the concept used on Tegra234 to scale EMC based on
CPU frequency and applies it to Tegra186 and Tegra194. Except that the
bpmp on those archs does not support bandwidth manager, so the scaling
iteself is handled similar to how Tegra124 currently works.

Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
---
Changes in v4:
- Rebase on next-20251027
- Track naming convention changes on patch 3
- Link to v3: https://lore.kernel.org/r/20251021-tegra186-icc-p2-v3-0-1a50b526dd40@gmail.com

Changes in v3:
- Split series
- Link to v2: https://lore.kernel.org/r/20250909-tegra186-icc-v2-0-09413724e781@gmail.com

Changes in v2:
- Use opp scoped free in patch 3
- Cleanup as requested in patch 3
- Move patch 3 to the start of the series to keep subsystems grouped
- Link to v1: https://lore.kernel.org/r/20250831-tegra186-icc-v1-0-607ddc53b507@gmail.com

---
Aaron Kling (5):
      dt-bindings: memory: tegra186-mc: Add dummy client IDs for Tegra186
      dt-bindings: memory: tegra194-mc: Add dummy client IDs for Tegra194
      memory: tegra186-emc: Support non-bpmp icc scaling
      memory: tegra186: Support icc scaling
      memory: tegra194: Support icc scaling

 drivers/memory/tegra/tegra186-emc.c      | 132 ++++++++++++++++++++++++++++++-
 drivers/memory/tegra/tegra186.c          |  48 +++++++++++
 drivers/memory/tegra/tegra194.c          |  59 +++++++++++++-
 include/dt-bindings/memory/tegra186-mc.h |   4 +
 include/dt-bindings/memory/tegra194-mc.h |   6 ++
 5 files changed, 246 insertions(+), 3 deletions(-)
---
base-commit: 8fec172c82c2b5f6f8e47ab837c1dc91ee3d1b87
change-id: 20251021-tegra186-icc-p2-864fd8625699

Best regards,
-- 
Aaron Kling <webgeek1234@gmail.com>
Re: [PATCH v4 0/5] memory: tegra: Support EMC dfs on Tegra186/Tegra194
Posted by Krzysztof Kozlowski 3 months, 1 week ago
On Mon, 27 Oct 2025 13:55:14 -0500, Aaron Kling wrote:
> This series borrows the concept used on Tegra234 to scale EMC based on
> CPU frequency and applies it to Tegra186 and Tegra194. Except that the
> bpmp on those archs does not support bandwidth manager, so the scaling
> iteself is handled similar to how Tegra124 currently works.
> 
> 

Applied, thanks!

[1/5] dt-bindings: memory: tegra186-mc: Add dummy client IDs for Tegra186
      https://git.kernel.org/krzk/linux-mem-ctrl/c/c15b28b1b3befb7ebf1c01c42623c3cede4cf9d1
[2/5] dt-bindings: memory: tegra194-mc: Add dummy client IDs for Tegra194
      https://git.kernel.org/krzk/linux-mem-ctrl/c/2aad3b30a7df710ff281d12a81bf84aa4bd98500
[3/5] memory: tegra186-emc: Support non-bpmp icc scaling
      https://git.kernel.org/krzk/linux-mem-ctrl/c/1004666bc437e234910c660f9d03a71ad44c027a
[4/5] memory: tegra186: Support icc scaling
      https://git.kernel.org/krzk/linux-mem-ctrl/c/dd6814eefbe524e433e1dbc25229c9338cb50027
[5/5] memory: tegra194: Support icc scaling
      https://git.kernel.org/krzk/linux-mem-ctrl/c/c9e39dd13ad6650b46ff3288ed33130a8bc771f8

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>