From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA30FC282EC for ; Fri, 14 Mar 2025 18:42:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=MjzUYO+f0dEIfn0NqOku+3fnvEFXy2J1drD8gdq2Qzg=; b=wOhrYVYCC7lDXY0e+jWbg+pkVN x6ycRS/iz3J1Vg5AtgtRNWSINR5Gx1jvaYSEuVLOwPTZJO58onX66WPi7NFzOEC2qtYjfWzc6V5AP 3wJb1usuJy8FkV56a5yW8bcox1PEtUn9awFYsUW9UkdAthb6ylFwy2ZWHPcVkq1raptHogPMbQni1 sJya0OjD9b5kwNyIMh87ecUo7S5LSENM3oYLMWg6cYnv/Mm9OQX/R2aEDU6A7r5QyUxLncb8uo+KR Re1dkRJBk83Sm7DtGzlnSGkXkx/XUjaiyZm9uGSqbEIjUjXQbz4TLEexJzo9+4Yy65HQXsbEUb5kR EN/N37Kg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tt9zd-0000000F3Ca-1oYc; Fri, 14 Mar 2025 18:42:49 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tt9v5-0000000F2od-3ohy for linux-arm-kernel@lists.infradead.org; Fri, 14 Mar 2025 18:38:09 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 555155C4C5C; Fri, 14 Mar 2025 18:35:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6A66AC4CEE3; Fri, 14 Mar 2025 18:38:02 +0000 (UTC) From: Catalin Marinas To: will@kernel.org, sudeep.holla@arm.com, tglx@linutronix.de, peterz@infradead.org, mpe@ellerman.id.au, linux-arm-kernel@lists.infradead.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, pierre.gondois@arm.com, dietmar.eggemann@arm.com, Yicong Yang Cc: linuxppc-dev@lists.ozlabs.org, x86@kernel.org, linux-kernel@vger.kernel.org, morten.rasmussen@arm.com, msuchanek@suse.de, gregkh@linuxfoundation.org, rafael@kernel.org, jonathan.cameron@huawei.com, prime.zeng@hisilicon.com, linuxarm@huawei.com, yangyicong@hisilicon.com, xuwei5@huawei.com, guohanjun@huawei.com, sshegde@linux.ibm.com Subject: Re: [PATCH v12 0/4] Support SMT control on arm64 Date: Fri, 14 Mar 2025 18:37:59 +0000 Message-Id: <174197746840.735682.9575626401918508908.b4-ty@arm.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250311075143.61078-1-yangyicong@huawei.com> References: <20250311075143.61078-1-yangyicong@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250314_113808_001601_37EA4742 X-CRM114-Status: UNSURE ( 6.88 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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