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perf: arm_cspmu: Add support for ARM CoreSight PMU driver Add support for ARM CoreSight PMU driver framework and interfaces. The driver provides generic implementation to operate uncore PMU based on ARM CoreSight PMU architecture. The driver also provides interface to get vendor/implementation specific information, for example event attributes and formating. The specification used in this implementation can be found below: * ACPI Arm Performance Monitoring Unit table: https://developer.arm.com/documentation/den0117/latest * ARM Coresight PMU architecture: https://developer.arm.com/documentation/ihi0091/latest Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Link: https://lore.kernel.org/r/20221111222330.48602-2-bwicaksono@nvidia.com Signed-off-by: Will Deacon <will@kernel.org>
2022-11-11 16:23:28 -06:00
# SPDX-License-Identifier: GPL-2.0
#
perf: arm_cspmu: Separate Arm and vendor module Arm Coresight PMU driver consists of main standard code and vendor backend code. Both are currently built as a single module. This patch adds vendor registration API to separate the two to keep things modular. The main driver requests each known backend module during initialization and defer device binding process. The backend module then registers an init callback to the main driver and continue the device driver binding process. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-and-tested-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Link: https://lore.kernel.org/r/20230821231608.50911-1-bwicaksono@nvidia.com Signed-off-by: Will Deacon <will@kernel.org>
2023-08-21 18:16:08 -05:00
# Copyright (c) 2022-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
perf: arm_cspmu: Add support for ARM CoreSight PMU driver Add support for ARM CoreSight PMU driver framework and interfaces. The driver provides generic implementation to operate uncore PMU based on ARM CoreSight PMU architecture. The driver also provides interface to get vendor/implementation specific information, for example event attributes and formating. The specification used in this implementation can be found below: * ACPI Arm Performance Monitoring Unit table: https://developer.arm.com/documentation/den0117/latest * ARM Coresight PMU architecture: https://developer.arm.com/documentation/ihi0091/latest Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Link: https://lore.kernel.org/r/20221111222330.48602-2-bwicaksono@nvidia.com Signed-off-by: Will Deacon <will@kernel.org>
2022-11-11 16:23:28 -06:00
config ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU
tristate "ARM Coresight Architecture PMU"
perf/arm_cspmu: Clean up ACPI dependency Build-wise, the ACPI dependency consists of only a couple of things which could probably stand being factored out into ACPI helpers anyway. However for the immediate concern of working towards Devicetree support here, it's easy enough to make a few tweaks to contain the affected code locally, such that we can relax the Kconfig dependency. Reviewed-and-Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/9d126711c7498b199b3e6f5cf48ca60ffb9df54c.1685983270.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>
2023-06-05 18:01:33 +01:00
depends on ARM64 || COMPILE_TEST
perf: arm_cspmu: Add support for ARM CoreSight PMU driver Add support for ARM CoreSight PMU driver framework and interfaces. The driver provides generic implementation to operate uncore PMU based on ARM CoreSight PMU architecture. The driver also provides interface to get vendor/implementation specific information, for example event attributes and formating. The specification used in this implementation can be found below: * ACPI Arm Performance Monitoring Unit table: https://developer.arm.com/documentation/den0117/latest * ARM Coresight PMU architecture: https://developer.arm.com/documentation/ihi0091/latest Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Link: https://lore.kernel.org/r/20221111222330.48602-2-bwicaksono@nvidia.com Signed-off-by: Will Deacon <will@kernel.org>
2022-11-11 16:23:28 -06:00
help
Provides support for performance monitoring unit (PMU) devices
based on ARM CoreSight PMU architecture. Note that this PMU
architecture does not have relationship with the ARM CoreSight
Self-Hosted Tracing.
perf: arm_cspmu: Separate Arm and vendor module Arm Coresight PMU driver consists of main standard code and vendor backend code. Both are currently built as a single module. This patch adds vendor registration API to separate the two to keep things modular. The main driver requests each known backend module during initialization and defer device binding process. The backend module then registers an init callback to the main driver and continue the device driver binding process. Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-and-tested-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Link: https://lore.kernel.org/r/20230821231608.50911-1-bwicaksono@nvidia.com Signed-off-by: Will Deacon <will@kernel.org>
2023-08-21 18:16:08 -05:00
config NVIDIA_CORESIGHT_PMU_ARCH_SYSTEM_PMU
tristate "NVIDIA Coresight Architecture PMU"
depends on ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU
help
Provides NVIDIA specific attributes for performance monitoring unit
(PMU) devices based on ARM CoreSight PMU architecture.
perf: arm_cspmu: ampere_cspmu: Add support for Ampere SoC PMU Ampere SoC PMU follows CoreSight PMU architecture. It uses implementation specific registers to filter events rather than PMEVFILTnR registers. Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Link: https://lore.kernel.org/r/20230913233941.9814-5-ilkka@os.amperecomputing.com [will: Include linux/io.h in ampere_cspmu.c for writel()] Signed-off-by: Will Deacon <will@kernel.org>
2023-09-13 16:39:41 -07:00
config AMPERE_CORESIGHT_PMU_ARCH_SYSTEM_PMU
tristate "Ampere Coresight Architecture PMU"
depends on ARM_CORESIGHT_PMU_ARCH_SYSTEM_PMU
help
Provides Ampere specific attributes for performance monitoring unit
(PMU) devices based on ARM CoreSight PMU architecture.
In the first phase, the driver enables support on MCU PMU used in
AmpereOne SoC family.
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