Ionela Voinescu writes: > The activity monitors extension is an optional extension introduced > by the ARMv8.4 CPU architecture. This implements basic support for > version 1 of the activity monitors architecture, AMUv1. > > This support includes: > - Extension detection on each CPU (boot, secondary, hotplugged) > - Register interface for AMU aarch64 registers > - amu=[0/1/on/off/y/n] kernel parameter to disable detection and > counter access at runtime > > Signed-off-by: Ionela Voinescu <ionela.voinescu@xxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Cc: Will Deacon <will@xxxxxxxxxx> > Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx> > Cc: Marc Zyngier <maz@xxxxxxxxxx> > Cc: Mark Rutland <mark.rutland@xxxxxxx> Reviewed-by: Valentin Schneider <valentin.schneider@xxxxxxx>
