[PATCH v3 00/10] perf: arm64: Support for Hisilicon SoC Hardware event counters

Mark Rutland mark.rutland at arm.com
Tue Jan 10 09:43:11 PST 2017


On Mon, Jan 02, 2017 at 01:47:52AM -0500, Anurup M wrote:
> ToDo:
> 1) The counter overflow handling is currently unsupported in this
>    patch series.

>From a quick scan of the patches, I see mention of an interrupt in a
comment the driver, but there's noething in the DT binding.

Is there an overflow interrupt at all?

Or do you need to implement polling to avoid overflow?

This is a prerequisite for merging the driver.


More information about the linux-arm-kernel mailing list