From:   Will Deacon <will@kernel.org>
To:     Mark Rutland <mark.rutland@arm.com>,
        linux-arm-kernel@lists.infradead.org
Cc:     catalin.marinas@arm.com, kernel-team@android.com,
        Will Deacon <will@kernel.org>, peterz@infradead.org,
        ravi.bangoria@amd.com, j@jannau.net, ecurtin@redhat.com,
        lina@asahilina.net, asahi@lists.linux.dev,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] arm_pmu: fix fallout from context handling rewrite
Date:   Thu, 16 Feb 2023 22:14:29 +0000
Message-Id: <167658263371.3504721.1571106036263387483.b4-ty@kernel.org>
In-Reply-To: <20230216141240.3833272-1-mark.rutland@arm.com>
References: <20230216141240.3833272-1-mark.rutland@arm.com>
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On Thu, 16 Feb 2023 14:12:37 +0000, Mark Rutland wrote:
> Janne reports [1] that perf has been broken on Apple M1 as of commit:
> 
>   bd27568117664b8b ("perf: Rewrite core context handling")
> 
> This is due to changes to pmu::filter_match() and
> arm_pmu::filter_match(), which have been renamed and had their polarity
> inverted, but the conversion was inconsistent, and so in some cases we
> return the opposite result relative to what we had intended. This
> results in consistently losing events on Apple M1.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/2] arm_pmu: fix event CPU filtering
      https://git.kernel.org/arm64/c/61d038627343
[2/2] arm64: perf: reject CHAIN events at creation time
      https://git.kernel.org/arm64/c/853e2dac25c1

Cheers,
-- 
Will

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