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Mon, 23 Mar 2026 18:29:57 -0700 Received: from build-bwicaksono-noble-20251018.internal (10.127.8.11) by mail.nvidia.com (10.126.190.180) with Microsoft SMTP Server id 15.2.2562.20 via Frontend Transport; Mon, 23 Mar 2026 18:29:56 -0700 From: Besar Wicaksono To: , , , , CC: , , , , , , , , , , , , , , , , Besar Wicaksono Subject: [PATCH v3 0/8] perf: add NVIDIA Tegra410 Uncore PMU support Date: Tue, 24 Mar 2026 01:29:44 +0000 Message-ID: <20260324012952.1923296-1-bwicaksono@nvidia.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B076:EE_|CH1PR12MB9695:EE_ X-MS-Office365-Filtering-Correlation-Id: 0efa4fde-2d9b-4456-d608-08de8944e204 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|36860700016|7416014|1800799024|13003099007|56012099003|18002099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: +GFo499wKIFdV0Z4Q4iSwV98+BBAGyOo91rzAkh8ZhxT9lvoBZzJyjitwmoPBBZ3/MVZ6BG1BA0YbDJZqJrA2xq118asSyPv4AAL6w4iEjK3gMAN3SL2EoN8z+O3KXaCERthxo4nFsiqd8xPqeIZdwmuJyDcpZ9NtLaDeUp+0t+SU6p2CNZtOfbr5wTFwXECKSLJUdLr6ILZHDHOs3Br9yiv0DJnA++KzhoO7yfuEtrrGTtvshTX7j3VQIj1xAbNCerFxKPzvvnwd5c3do+vJhOCDvu7d3mpFwMXxwPeq2iEbXmRNwKrlLV8pCY6BJxCm8+oGdtdYtZUYcnzciRMDiG+tG6+RPKw7aLt/7pWGiZSbMjnOIDBOnfiV4+xck4y0lwt68iHETRtRITwwv1lWJiJds0Dn0lL3DbIxdWwJmPeLIeh1O4p4tFZJbjRxub0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Mar 2026 01:30:07.4191 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0efa4fde-2d9b-4456-d608-08de8944e204 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B076.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH1PR12MB9695 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 v2: * Addressed comment on arm_cspmu_acpi_dev_get buffer initialization and matching CONFIG_* guard. * Addressed comment on nvidia_cspmu attribute table and match-entry style, validation scoping, and ACPI+ARM64 around instance-id lookup. * Addressed comment on PCIe documentation (fabric placement and cycles event). * Rework CMEM latency PMU (separate broadcast MMIO, CMEM_LAT_* macro names, event_init and formatting). * Rework C2C PMU sysfs using static attribute groups and nv_c2c_pmu_data in ACPI match data; drop dynamic group allocation, is_visible, and ACPI_PTR. v2: https://lore.kernel.org/all/20260218145809.1622856-1-bwicaksono@nvidia.com/T/#t 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. v1: https://lore.kernel.org/all/20260126181155.2776097-1-bwicaksono@nvidia.com/T/#t Thanks to Ilkka, Krzysztof, Jon, and Jonathan Cameron for the comments. 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 | 522 ++++++++ arch/arm64/configs/defconfig | 2 + drivers/perf/Kconfig | 14 + drivers/perf/Makefile | 2 + drivers/perf/arm_cspmu/arm_cspmu.c | 19 +- drivers/perf/arm_cspmu/arm_cspmu.h | 17 +- drivers/perf/arm_cspmu/nvidia_cspmu.c | 618 +++++++++- drivers/perf/nvidia_t410_c2c_pmu.c | 1051 +++++++++++++++++ drivers/perf/nvidia_t410_cmem_latency_pmu.c | 736 ++++++++++++ 11 files changed, 2979 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