RISC-V legacy PMU implementation
modulename: riscv_pmu_legacy.ko
configname: CONFIG_RISCV_PMU_LEGACY
Linux Kernel Configuration
└─>Device Drivers
└─>Performance monitor support
└─>RISC-V legacy PMU implementation
In linux kernel since version 5.2 (release Date: 2019-07-07)
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.
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.