[PATCH v3] perf: arm_spe: Relax period restriction

Will Deacon will at kernel.org
Tue Jul 8 11:02:58 PDT 2025


On Fri, 27 Jun 2025 17:30:28 +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().
> 
> [...]

Applied to will (for-next/perf), thanks!

[1/1] perf: arm_spe: Relax period restriction
      https://git.kernel.org/will/c/ba2ff3e1b640

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev



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