linux-kernel - Re: [PATCH V2] drivers: perf: arm_pmuv3: Read PMMIR

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Message-Id: <169772970439.4092128.7487260663443173139.b4-ty@kernel.org>
Date:   Thu, 19 Oct 2023 16:45:58 +0100
From:   Will Deacon <will@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org,
        Anshuman Khandual <anshuman.khandual@....com>
Cc:     catalin.marinas@....com, kernel-team@...roid.com,
        Will Deacon <will@...nel.org>,
        James Clark <james.clark@....com>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] drivers: perf: arm_pmuv3: Read PMMIR_EL1 unconditionally

On Fri, 13 Oct 2023 08:13:54 +0530, Anshuman Khandual wrote:
> Currently the PMUv3 driver only reads PMMIR_EL1 if the PMU implements
> FEAT_PMUv3p4 and the STALL_SLOT event, but the check for STALL_SLOT event
> isn't necessary and can be removed.
> 
> The check for STALL_SLOT event was introduced with the read of PMMIR_EL1 in
> commit f5be3a61fdb5dd11 ("arm64: perf: Add support caps under sysfs")
> 
> [...]

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

[1/1] drivers: perf: arm_pmuv3: Read PMMIR_EL1 unconditionally
      https://git.kernel.org/will/c/58f8fc57b1d3

Cheers,
-- 
Will

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