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From: Oleg Keri <okerixx@gmail.com>
To: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Ananthu C V <ananthu.cv@oss.qualcomm.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Beata Michalska <beata.michalska@arm.com>,
	Sudeep Holla <sudeep.holla@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 2/2] arch_topology: use the boost frequencies for capacity_freq_ref
Date: Thu, 17 Sep 2026 17:38:47 +0200	[thread overview]
Message-ID: <178965952769.2757.5034972953349001664@gmail.com> (raw)
In-Reply-To: <bddc9273-fe02-4984-bfe9-5078e9e6e111@arm.com>

Hi Dietmar,

On Thu, Sep 17, 2026, Dietmar Eggemann wrote:
> Ah, you want to fix this for 'frequency table' drivers.
>
> IMHO,
> https://lore.kernel.org/r/20260908-schedutil-boost-frequency-handling-v2-0-25312a713699@oss.qualcomm.com
> is trying the same at the moment.

Thanks, I had missed that series. Please drop my 2/2 in favour of it.

Patch 1/2 here is still needed, and becomes a prerequisite for his series
on this SoC: with the reference at 4723200 kHz from boot,
arch_freq_get_on_cpu() wraps and cpuinfo_avg_freq reads about 524283 kHz
unless the multiply stays in 64 bits.

I will test his series on the Yoga Slim 7x Gen 11 and reply there.

Thanks,
Oleg

      reply	other threads:[~2026-09-17 15:39 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-17 12:51 [PATCH v4 0/2] arm64/cpufreq: report and track frequencies above 4.19 GHz Oleg Keri
2026-09-17 12:51 ` [PATCH v4 1/2] arm64: topology: fix arch_freq_get_on_cpu() overflow " Oleg Keri
2026-09-17 15:32   ` Peter Zijlstra
2026-09-17 15:55     ` Dietmar Eggemann
2026-09-17 16:24       ` Peter Zijlstra
2026-09-17 12:51 ` [PATCH v4 2/2] arch_topology: use the boost frequencies for capacity_freq_ref Oleg Keri
2026-09-17 14:34   ` Dietmar Eggemann
2026-09-17 15:38     ` Oleg Keri [this message]

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