# SPDX-License-Identifier: GPL-2.0-only # # Performance Monitor Drivers # menu "Performance monitor support" depends on PERF_EVENTS config ARM_CCI_PMU tristate "ARM CCI PMU driver" depends on (ARM && CPU_V7) || ARM64 select ARM_CCI help Support for PMU events monitoring on the ARM CCI (Cache Coherent Interconnect) family of products. If compiled as a module, it will be called arm-cci. config ARM_CCI400_PMU bool "support CCI-400" default y depends on ARM_CCI_PMU select ARM_CCI400_COMMON help CCI-400 provides 4 independent event counters counting events related to the connected slave/master interfaces, plus a cycle counter. config ARM_CCI5xx_PMU bool "support CCI-500/CCI-550" default y depends on ARM_CCI_PMU help CCI-500/CCI-550 both provide 8 independent event counters, which can count events pertaining to the slave/master interfaces as well as the internal events to the CCI. config ARM_CCN tristate "ARM CCN driver support" depends on ARM || ARM64 || COMPILE_TEST help PMU (perf) driver supporting the ARM CCN (Cache Coherent Network) interconnect. config ARM_CMN tristate "Arm CMN-600 PMU support" depends on ARM64 || COMPILE_TEST help Support for PMU events monitoring on the Arm CMN-600 Coherent Mesh Network interconnect. config ARM_PMU depends on ARM || ARM64 bool "ARM PMU framework" default y help Say y if you want to use CPU performance monitors on ARM-based systems. config RISCV_PMU depends on RISCV bool "RISC-V PMU framework" default y help Say y if you want to use CPU performance monitors on RISCV-based systems. This provides the core PMU framework that abstracts common PMU functionalities in a core library so that different PMU drivers can reuse it. config RISCV_PMU_LEGACY depends on RISCV_PMU bool "RISC-V legacy PMU implementation" default y help Say y if you want to use the legacy CPU performance monitor implementation on RISC-V based systems. This only allows counting of cycle/instruction counter and doesn't support counter overflow, or programmable counters. It will be removed in future. config RISCV_PMU_SBI depends on RISCV_PMU && RISCV_SBI bool "RISC-V PMU based on SBI PMU extension" default y help Say y if you want to use the CPU performance monitor using SBI PMU extension on RISC-V based systems. This option provides full perf feature support i.e. counter overflow, privilege mode filtering, counter configuration. config ARM_PMU_ACPI depends on ARM_PMU && ACPI def_bool y config ARM_SMMU_V3_PMU tristate "ARM SMMUv3 Performance Monitors Extension" depends on (ARM64 && ACPI) || (COMPILE_TEST && 64BIT) depends on GENERIC_MSI_IRQ help Provides support for the ARM SMMUv3 Performance Monitor Counter Groups (PMCG), which provide monitoring of transactions passing through the SMMU and allow the resulting information to be filtered based on the Stream ID of the corresponding master. config ARM_PMUV3 depends on HW_PERF_EVENTS && ((ARM && CPU_V7) || ARM64) bool "ARM PMUv3 support" if !ARM64 default ARM64 help Say y if you want to use the ARM performance monitor unit (PMU) version 3. The PMUv3 is the CPU performance monitors on ARMv8 (aarch32 and aarch64) systems that implement the PMUv3 architecture. config ARM_DSU_PMU tristate "ARM DynamIQ Shared Unit (DSU) PMU" depends on ARM64 help Provides support for performance monitor unit in ARM DynamIQ Shared Unit (DSU). The DSU integrates one or more cores with an L3 memory system, control logic. The PMU allows counting various events related to DSU. config FSL_IMX8_DDR_PMU tristate "Freescale i.MX8 DDR perf monitor" depends on ARCH_MXC || COMPILE_TEST help Provides support for the DDR performance monitor in i.MX8, which can give information about memory throughput and other related events. config QCOM_L2_PMU bool "Qualcomm Technologies L2-cache PMU" depends on ARCH_QCOM && ARM64 && ACPI select QCOM_KRYO_L2_ACCESSORS help Provides support for the L2 cache performance monitor unit (PMU) in Qualcomm Technologies processors. Adds the L2 cache PMU into the perf events subsystem for monitoring L2 cache events. config QCOM_L3_PMU bool "Qualcomm Technologies L3-cache PMU" depends on ARCH_QCOM && ARM64 && ACPI select QCOM_IRQ_COMBINER help Provides support for the L3 cache performance monitor unit (PMU) in Qualcomm Technologies processors. Adds the L3 cache PMU into the perf events subsystem for monitoring L3 cache events. config THUNDERX2_PMU tristate "Cavium ThunderX2 SoC PMU UNCORE" depends on ARCH_THUNDER2 || COMPILE_TEST depends on NUMA && ACPI default m help Provides support for ThunderX2 UNCORE events. The SoC has PMU support in its L3 cache controller (L3C) and in the DDR4 Memory Controller (DMC). config XGENE_PMU depends on ARCH_XGENE || (COMPILE_TEST && 64BIT) bool "APM X-Gene SoC PMU" default n help Say y if you want to use APM X-Gene SoC performance monitors. config ARM_SPE_PMU tristate "Enable support for the ARMv8.2 Statistical Profiling Extension" depends on ARM64 help Enable perf support for the ARMv8.2 Statistical Profiling Extension, which provides periodic sampling of operations in the CPU pipeline and reports this via the perf AUX interface. config ARM_DMC620_PMU tristate "Enable PMU support for the ARM DMC-620 memory controller" depends on (ARM64 && ACPI) || COMPILE_TEST help Support for PMU events monitoring on the ARM DMC-620 memory controller. config MARVELL_CN10K_TAD_PMU tristate "Marvell CN10K LLC-TAD PMU" depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) help Provides support for Last-Level cache Tag-and-data Units (LLC-TAD) performance monitors on CN10K family silicons. config APPLE_M1_CPU_PMU bool "Apple M1 CPU PMU support" depends on ARM_PMU && ARCH_APPLE help Provides support for the non-architectural CPU PMUs present on the Apple M1 SoCs and derivatives. config ALIBABA_UNCORE_DRW_PMU tristate "Alibaba T-Head Yitian 710 DDR Sub-system Driveway PMU driver" depends on (ARM64 && ACPI) || COMPILE_TEST help Support for Driveway PMU events monitoring on Yitian 710 DDR Sub-system. source "drivers/perf/hisilicon/Kconfig" config MARVELL_CN10K_DDR_PMU tristate "Enable MARVELL CN10K DRAM Subsystem(DSS) PMU Support" depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) help Enable perf support for Marvell DDR Performance monitoring event on CN10K platform. source "drivers/perf/arm_cspmu/Kconfig" source "drivers/perf/amlogic/Kconfig" config CXL_PMU tristate "CXL Performance Monitoring Unit" depends on CXL_BUS help Support performance monitoring as defined in CXL rev 3.0 section 13.2: Performance Monitoring. CXL components may have one or more CXL Performance Monitoring Units (CPMUs). Say 'y/m' to enable a driver that will attach to performance monitoring units and provide standard perf based interfaces. If unsure say 'm'. endmenu