Re: [PATCH v5 4/6] perf: hisi: Add support for HiSilicon SoC HHA PMU driver

From: Mark Rutland
Date: Tue Oct 17 2017 - 11:18:34 EST


On Tue, Aug 22, 2017 at 04:07:55PM +0800, Shaokun Zhang wrote:
> L3 cache coherence is maintained by Hydra Home Agent (HHA) in HiSilicon
> SoC. This patch adds support for HHA PMU driver, Each HHA has own
> control, counter and interrupt registers and is an separate PMU. For
> each HHA PMU, it has 16-programable counters and each counter is
> free-running. Interrupt is supported to handle counter (48-bits)
> overflow.

My comments here are the same as for the L3C PMU driver.

Thanks,
Mark.