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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 05CFEC433E1 for ; Thu, 13 Aug 2020 22:27:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C672120774 for ; Thu, 13 Aug 2020 22:27:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726597AbgHMW1P (ORCPT ); Thu, 13 Aug 2020 18:27:15 -0400 Received: from foss.arm.com ([217.140.110.172]:57480 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726467AbgHMW1P (ORCPT ); Thu, 13 Aug 2020 18:27:15 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A0E5E1063; Thu, 13 Aug 2020 15:27:14 -0700 (PDT) Received: from e113632-lin (e113632-lin.cambridge.arm.com [10.1.194.46]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6BD903F22E; Thu, 13 Aug 2020 15:27:13 -0700 (PDT) References: <20200812125300.11889-1-valentin.schneider@arm.com> <20200812125300.11889-3-valentin.schneider@arm.com> <20200813191614.GB2337490@gmail.com> User-agent: mu4e 0.9.17; emacs 26.3 From: Valentin Schneider To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Russell King , Dietmar Eggemann , peterz@infradead.org, vincent.guittot@linaro.org, morten.rasmussen@arm.com, Quentin Perret Subject: Re: [PATCH v5 02/17] ARM: Revert back to default scheduler topology. In-reply-to: <20200813191614.GB2337490@gmail.com> Date: Thu, 13 Aug 2020 23:27:05 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 13/08/20 20:16, Ingo Molnar wrote: > * Valentin Schneider wrote: > >> The ARM-specific GMC level is meant to be built using the thread sibling >> mask, but no devicetree in arch/arm/boot/dts uses the 'thread' cpu-map >> binding. With SD_SHARE_POWERDOMAIN gone, this topology level can be >> removed, at which point ARM no longer benefits from having a custom defined >> topology table. >> >> Delete the GMC topology level by making ARM use the default scheduler >> topology table. This essentially reverts commit >> >> fb2aa85564f4 ("sched, ARM: Create a dedicated scheduler topology table") >> >> Cc: Russell King >> Suggested-by: Dietmar Eggemann >> Reviewed-by: Dietmar Eggemann >> Signed-off-by: Valentin Schneider > > Minor changelog nit, it's helpful to add this final sentence: > > No change in functionality is expected. > > ( If indeed no change in functionality is expected. ;-) > Right, that's indeed the case here given the GMC domain would always be degenerated anyway. > Thanks, > > Ingo