[PATCH] perf/arm-cmn: Stop claiming entire iomem region

[Will Deacon]

On Thu, 19 Feb 2026 17:27:53 +0000, Robin Murphy wrote:
> So far, the PMU has been the only thing of interest in the vast mass
> of CMN registers, so we've gotten away with simply claiming the entire
> iomem region. However, now that we can support other features like MPAM
> controllers for the system caches, the PMU driver needs to stop being
> selfish and learn to share. Similarly to arm-ni, requesting just the
> DTC node(s) should suffice for staking our exclusive claim to the PMU
> features, as requesting hundreds of tiny regions for all the individual
> pmu_event_sel registers is definitely not worth the considerable bother.
> 
> [...]

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

[1/1] perf/arm-cmn: Stop claiming entire iomem region
      https://git.kernel.org/will/c/5394396ff548

Cheers,
-- 
Will

https://fixes.arm64.dev
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