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 BFE12C433EF for ; Tue, 19 Jul 2022 11:41:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=wDm1AU7vpbXahWOZ8rSc+cJQ92cpQ+eXYcJ6s0rL7hI=; b=KCf7UMFgm3BSi4 5T4O32lngm1SZeRw7wSGyep9X0buOVC1mzpwDB6ahhNRL49Bps21Sp8GynylEMxsR1GX8I3dX0Mn9 1iRpYaSbqvdK6yZh6tWxr00/HRlKldiJCJSKI4aXl1wMM1nR66NouOZG8rU3L3tYGxOK1jGkveSdO Zndn1Y/y8jAYZyamh8bTO3jeA/2G0D+Yb5QQlyu6RRCP3bciNSbh4K7nlRLI1HVCuYrzWjZGWz3Mi JSen5s6iknfETQ2MjWruxt39Jlp5Nz/P9bHtztL0OdCk1jj0VbcTya0XlpUavAot3pMHKN8akgEJj sM1d8MiUz7DQWy7MVpJw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oDlbR-008N43-8l; Tue, 19 Jul 2022 11:41:25 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oDlbH-008MvJ-3n; Tue, 19 Jul 2022 11:41:16 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id C1F12CE1A32; Tue, 19 Jul 2022 11:41:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2822BC341C6; Tue, 19 Jul 2022 11:41:06 +0000 (UTC) Date: Tue, 19 Jul 2022 12:41:02 +0100 From: Catalin Marinas To: Conor Dooley Cc: Paul Walmsley , Palmer Dabbelt , Palmer Dabbelt , Albert Ou , Sudeep Holla , Will Deacon , Greg Kroah-Hartman , "Rafael J . Wysocki" , Daire McNamara , Conor Dooley , Niklas Cassel , Damien Le Moal , Geert Uytterhoeven , Zong Li , Emil Renner Berthing , Jonas Hahnfeld , Guo Ren , Anup Patel , Atish Patra , Heiko Stuebner , Philipp Tomsich , Rob Herring , Marc Zyngier , Viresh Kumar , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Brice Goglin Subject: Re: [PATCH v4 1/2] arm64: topology: move store_cpu_topology() to shared code Message-ID: References: <20220715175155.3567243-1-mail@conchuod.ie> <20220715175155.3567243-2-mail@conchuod.ie> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220715175155.3567243-2-mail@conchuod.ie> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220719_044115_385716_899091DF X-CRM114-Status: GOOD ( 16.24 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Fri, Jul 15, 2022 at 06:51:55PM +0100, Conor Dooley wrote: > From: Conor Dooley > > arm64's method of defining a default cpu topology requires only minimal > changes to apply to RISC-V also. The current arm64 implementation exits > early in a uniprocessor configuration by reading MPIDR & claiming that > uniprocessor can rely on the default values. > > This is appears to be a hangover from prior to '3102bc0e6ac7 ("arm64: > topology: Stop using MPIDR for topology information")', because the > current code just assigns default values for multiprocessor systems. > > With the MPIDR references removed, store_cpu_topolgy() can be moved to > the common arch_topology code. > > CC: stable@vger.kernel.org I'd quantify how far back you want this to go. IIUC based on the Fixes tag in the other patch, it should stop at 5.4. If you send a pull request instead and have a fixed commit id, you could add it as a prerequisite on the following patch without a cc stable here. Either way: Acked-by: Catalin Marinas _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv