[linux-nvidia-6.17] Backport support for T410 PMU #295
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This reverts commit 93c54a5 so that it can be replaced by the upstream equivalents. Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Add cpu part and model macro definitions for NVIDIA Olympus core. Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com> Signed-off-by: Will Deacon <will@kernel.org> (cherry picked from commit e185c8a) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Add the part number and MIDR for NVIDIA Olympus. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-by: Leo Yan <leo.yan@arm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> (cherry picked from commit d5e4c71) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Add NVIDIA Olympus MIDR to neoverse_spe range list. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-by: Leo Yan <leo.yan@arm.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> (backported from commit d852b83) [mochs: Minor context cleanup due to absence of "perf arm_spe: Add CPU variants supporting common data source packet"] Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
The documentation in nvidia-pmu.rst contains PMUs specific to NVIDIA Tegra241 SoC. Rename the file for this specific SoC to have better distinction with other NVIDIA SoC. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Adds Unified Coherent Fabric PMU support in Tegra410 SOC. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Add interface to get ACPI device associated with the PMU. This ACPI device may contain additional properties not covered by the standard properties. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Adds PCIE PMU support in Tegra410 SOC. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Adds PCIE-TGT PMU support in Tegra410 SOC. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Adds CPU Memory (CMEM) Latency PMU support in Tegra410 SOC. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Adds NVIDIA C2C PMU support in Tegra410 SOC. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Enable driver for NVIDIA TEGRA410 CMEM Latency and C2C PMU device. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
… events Add JSON files for NVIDIA Tegra410 Olympus core PMU events. Also updated the common-and-microarch.json. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> (backported from https://lore.kernel.org/all/20260127225909.3296202-1-bwicaksono@nvidia.com/) Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
…EGRA410_CMEM_LATENCY_PMU
Set the following kconfigs to enable these PMUs on T410:
CONFIG_NVIDIA_TEGRA410_C2C_PMU=m
CONFIG_NVIDIA_TEGRA410_CMEM_LATENCY_PMU=m
Signed-off-by: Matthew R. Ochs <mochs@nvidia.com>
Collaborator
|
there is a comment for this patch[PATCH 6/8] perf: add NVIDIA Tegra410 CPU Memory Latency PMU at llkml about compile errors. Should we wait for besar to respond? |
Collaborator
Author
That is a random config bot. I think that failure is because the Kconfigs for these new PMUs don't have a depends on ACPI - if you look at the config from the bot it doesn't have ACPI support. Our platform requires ACPI, so we won't hit this failure. So we could wait for a v2, but I don't think this is really a blocker for getting this merged. We'll have to refresh the series to whatever the final merged version is anyway at some point. |
clsotog
approved these changes
Jan 28, 2026
Collaborator
clsotog
left a comment
clsotog
left a comment
There was a problem hiding this comment.
Acked-by: Carol L Soto <csoto@nvidia.com>
Collaborator
|
|
jamieNguyenNVIDIA
approved these changes
Jan 28, 2026
Collaborator
Author
|
PR submitted to Canonical. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
5 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR backports the following two series from LKML to support the T410 PMU:
[PATCH 0/8] perf: add NVIDIA Tegra410 Uncore PMU support
[PATCH] perf vendor events arm64: Add Tegra410 Olympus PMU events
Included is a Config patch to enable the modules provided in the PMU series.
The patch also reverts the NVIDIA:SAUCE patch that added the NVIDIA Olympus definitions and picks the upstream counterpart. This was done to allow the pick of these two upstream patches (also included in this PR) that are a pre-requisite for the T410 series:
Tested the following:
Each test verified:
LP: https://bugs.launchpad.net/ubuntu/+source/linux-nvidia/+bug/2139315