linux-kernel - Re: [PATCH] arm64: topology: Do not warn on missing AMU in cpuhp_topology

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Message-ID: <176908072212.2053791.7954554866629671060.b4-ty@kernel.org>
Date: Thu, 22 Jan 2026 16:59:41 +0000
From: Will Deacon <will@...nel.org>
To: Lifeng Zheng <zhenglifeng1@...wei.com>,
	Beata Michalska <beata.michalska@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Geert Uytterhoeven <geert+renesas@...der.be>
Cc: kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: topology: Do not warn on missing AMU in cpuhp_topology_online()

On Thu, 15 Jan 2026 09:51:45 +0100, Geert Uytterhoeven wrote:
> When CONFIG_CPUMASK_OFFSTACK is not enabled, and resuming from s2ram on
> Renesas R-Car H3 (big.LITTLE 4x Cortex-A57 + 4x Cortex-A53), during
> enabling of the first little core, a warning message is printed:
> 
>     AMU: CPU[4] doesn't support AMU counters
> 
> This confuses users, as during boot amu_fie_setup() does not print such
> a message, unless debugging is enabled (freq_counters_valid() prints
> "CPU%d: counters are not supported.\n" at debug level in that case).
> 
> [...]

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

[1/1] arm64: topology: Do not warn on missing AMU in cpuhp_topology_online()
      https://git.kernel.org/arm64/c/747d5b6735ca

Cheers,
-- 
Will

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