Thread (18 messages) 18 messages, 2 authors, 2026-03-05
STALE97d
Revisions (3)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]

[PATCH v2 0/8] perf: add NVIDIA Tegra410 Uncore PMU support

From: Besar Wicaksono <hidden>
Date: 2026-02-18 14:58:44
Also in: linux-tegra, lkml

This series adds driver support for the following Uncore PMUs in
NVIDIA Tegra410 SoC:
  - Unified Coherence Fabric (UCF)
  - PCIE
  - PCIE-TGT
  - CPU Memory (CMEM) Latency
  - NVLink-C2C
  - NV-CLink
  - NV-DLink

Changes from v1:
  * Add more clarity on the commit message.
  * Fix build error reported by kernel test robot on PATCH 6/8.
    * It was missing ACPI dependency on Kconfig for the CPU Memory
      Latency PMU.
  * Apply code formatting suggestions from Ilkka.
  * Added Reviewed-by from Ilkka.
Thanks to Ilkka, Krzysztof, and Jon for the comments.
v1: https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/T/#t (local)

Thanks,
Besar

Besar Wicaksono (8):
  perf/arm_cspmu: nvidia: Rename doc to Tegra241
  perf/arm_cspmu: nvidia: Add Tegra410 UCF PMU
  perf/arm_cspmu: Add arm_cspmu_acpi_dev_get
  perf/arm_cspmu: nvidia: Add Tegra410 PCIE PMU
  perf/arm_cspmu: nvidia: Add Tegra410 PCIE-TGT PMU
  perf: add NVIDIA Tegra410 CPU Memory Latency PMU
  perf: add NVIDIA Tegra410 C2C PMU
  arm64: defconfig: Enable NVIDIA TEGRA410 PMU

 Documentation/admin-guide/perf/index.rst      |    3 +-
 ...nvidia-pmu.rst => nvidia-tegra241-pmu.rst} |    8 +-
 .../admin-guide/perf/nvidia-tegra410-pmu.rst  |  520 ++++++++
 arch/arm64/configs/defconfig                  |    2 +
 drivers/perf/Kconfig                          |   14 +
 drivers/perf/Makefile                         |    2 +
 drivers/perf/arm_cspmu/arm_cspmu.c            |   22 +-
 drivers/perf/arm_cspmu/arm_cspmu.h            |   17 +-
 drivers/perf/arm_cspmu/nvidia_cspmu.c         |  624 +++++++++-
 drivers/perf/nvidia_t410_c2c_pmu.c            | 1062 +++++++++++++++++
 drivers/perf/nvidia_t410_cmem_latency_pmu.c   |  727 +++++++++++
 11 files changed, 2988 insertions(+), 13 deletions(-)
 rename Documentation/admin-guide/perf/{nvidia-pmu.rst => nvidia-tegra241-pmu.rst} (98%)
 create mode 100644 Documentation/admin-guide/perf/nvidia-tegra410-pmu.rst
 create mode 100644 drivers/perf/nvidia_t410_c2c_pmu.c
 create mode 100644 drivers/perf/nvidia_t410_cmem_latency_pmu.c

-- 
2.43.0

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