# 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 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 && 64BIT) 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 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 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_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 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 && ARM64 && ACPI && NUMA 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 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. source "drivers/perf/hisilicon/Kconfig" endmenu