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2022-03-08drivers/perf: Add Apple icestorm/firestorm CPU PMU driverMarc Zyngier
Add a new, weird and wonderful driver for the equally weird Apple PMU HW. Although the PMU itself is functional, we don't know much about the events yet, so this can be considered as yet another random number generator... Nonetheless, it can reliably count at least cycles and instructions in the usually wonky big-little way. For anything else, it of course supports raw event numbers. Signed-off-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Will Deacon <will@kernel.org>
2022-02-07irqchip/apple-aic: Move PMU-specific registers to their own include fileMarc Zyngier
As we are about to have a PMU driver, move the PMU bits from the AIC driver into a common include file. Reviewed-by: Hector Martin <marcan@marcan.st> Signed-off-by: Marc Zyngier <maz@kernel.org>