linux-kernel - Re: [PATCH v12 0/4] Support SMT control on arm64

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Message-Id: <174197746840.735682.9575626401918508908.b4-ty@arm.com>
Date: Fri, 14 Mar 2025 18:37:59 +0000
From: Catalin Marinas <catalin.marinas@....com>
To: will@...nel.org,
	sudeep.holla@....com,
	tglx@...utronix.de,
	peterz@...radead.org,
	mpe@...erman.id.au,
	linux-arm-kernel@...ts.infradead.org,
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	bp@...en8.de,
	dave.hansen@...ux.intel.com,
	pierre.gondois@....com,
	dietmar.eggemann@....com,
	Yicong Yang <yangyicong@...wei.com>
Cc: linuxppc-dev@...ts.ozlabs.org,
	x86@...nel.org,
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	morten.rasmussen@....com,
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	sshegde@...ux.ibm.com
Subject: Re: [PATCH v12 0/4] Support SMT control on arm64

On Tue, 11 Mar 2025 15:51:39 +0800, Yicong Yang wrote:
> The core CPU control framework supports runtime SMT control which
> is not yet supported on arm64. Besides the general vulnerabilities
> concerns we want this runtime control on our arm64 server for:
> 
> - better single CPU performance in some cases
> - saving overall power consumption
> 
> [...]

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

[1/4] cpu/SMT: Provide a default topology_is_primary_thread()
      https://git.kernel.org/arm64/c/4b455f59945a
[2/4] arch_topology: Support SMT control for OF based system
      https://git.kernel.org/arm64/c/5deb9c789ae4
[3/4] arm64: topology: Support SMT control on ACPI based system
      https://git.kernel.org/arm64/c/e6b18ebfaf63
[4/4] arm64: Kconfig: Enable HOTPLUG_SMT
      https://git.kernel.org/arm64/c/eed4583bcf9a

-- 
Catalin