Re: [PATCH v20 00/11] arm64/perf: Enable branch stack sampling

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On Sat, Mar 1, 2025 at 1:05 AM Will Deacon <will@xxxxxxxxxx> wrote:
>
> On Tue, 18 Feb 2025 14:39:55 -0600, Rob Herring (Arm) wrote:
> > This series enables perf branch stack sampling support on arm64 via a
> > v9.2 arch feature called Branch Record Buffer Extension (BRBE). Details
> > on BRBE can be found in the Arm ARM[1] chapter D18.
> >
> > I've picked up this series from Anshuman. v19 and v20 versions have been
> > reworked quite a bit by Mark and myself. The bulk of those changes are
> > in patch 11.
> >
> > [...]
>
> Applied cleanups to will (for-next/perf), thanks!
>
> [01/11] perf: arm_pmuv3: Call kvm_vcpu_pmu_resync_el0() before enabling counters
>         https://git.kernel.org/will/c/04bd15c4cbc3
> [02/11] perf: arm_pmu: Don't disable counter in armpmu_add()
>         https://git.kernel.org/will/c/dcca27bc1ecc
> [03/11] perf: arm_pmuv3: Don't disable counter in armv8pmu_enable_event()
>         https://git.kernel.org/will/c/4b0567ad0be5
> [04/11] perf: arm_v7_pmu: Drop obvious comments for enabling/disabling counters and interrupts
>         https://git.kernel.org/will/c/7a5387748215
> [05/11] perf: arm_v7_pmu: Don't disable counter in (armv7|krait_|scorpion_)pmu_enable_event()
>         https://git.kernel.org/will/c/7bf1001e0d91
> [06/11] perf: apple_m1: Don't disable counter in m1_pmu_enable_event()
>         https://git.kernel.org/will/c/c2e793da59fc
> [07/11] perf: arm_pmu: Move PMUv3-specific data
>         https://git.kernel.org/will/c/dc4d58a752ea

I don't know if you looked at the thread on patch 11 and said "long
discussion, I'll assume a new version is coming. Next!" because that's
what I would do. In this case though, there's not any changes.

Rob





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