[PATCH v3] perf: arm_spe: Relax period restriction

[Leo Yan]

On Fri, Jun 27, 2025 at 05:30:28PM +0100, Leo Yan wrote:
> The minimum interval specified the PMSIDR_EL1.Interval field is a
> hardware recommendation. However, this value is set by hardware designer
> before the production. It is not actual hardware limitation but tools
> currently have no way to test shorter periods.
> 
> This change relaxes the limitation by allowing any non-zero periods,
> with simplifying code with clamp_t().

Hi Will,

Would you mind checking if this small patch is okay to pick up?

Thanks,
Leo