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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 A80B3C433DB for ; Mon, 1 Mar 2021 15:04:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 64E5264DAF for ; Mon, 1 Mar 2021 15:04:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236874AbhCAPEN (ORCPT ); Mon, 1 Mar 2021 10:04:13 -0500 Received: from elvis.franken.de ([193.175.24.41]:33727 "EHLO elvis.franken.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236879AbhCAPEA (ORCPT ); Mon, 1 Mar 2021 10:04:00 -0500 Received: from uucp (helo=alpha) by elvis.franken.de with local-bsmtp (Exim 3.36 #1) id 1lGk4s-00041h-02; Mon, 01 Mar 2021 16:03:18 +0100 Received: by alpha.franken.de (Postfix, from userid 1000) id C01C2C03C2; Mon, 1 Mar 2021 15:50:46 +0100 (CET) Date: Mon, 1 Mar 2021 15:50:46 +0100 From: Thomas Bogendoerfer To: =?iso-8859-1?Q?=C1lvaro_Fern=E1ndez?= Rojas Cc: jonas.gorski@gmail.com, Florian Fainelli , Thomas Gleixner , Marc Zyngier , bcm-kernel-feedback-list@broadcom.com, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] mips: smp-bmips: fix CPU mappings Message-ID: <20210301145046.GE11261@alpha.franken.de> References: <20210223124817.26486-1-noltari@gmail.com> <20210224073336.32265-1-noltari@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20210224073336.32265-1-noltari@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On Wed, Feb 24, 2021 at 08:33:36AM +0100, Álvaro Fernández Rojas wrote: > When booting bmips with SMP enabled on a BCM6358 running on CPU #1 instead of > CPU #0, the current CPU mapping code produces the following: > - smp_processor_id(): 0 > - cpu_logical_map(0): 1 > - cpu_number_map(0): 1 > > This is because SMP isn't supported on BCM6358 since it has a shared TLB, so > it is disabled and max_cpus is decreased from 2 to 1. > > Signed-off-by: Álvaro Fernández Rojas > Reviewed-by: Florian Fainelli > --- > v2: Fix duplicated line > > arch/mips/kernel/smp-bmips.c | 27 +++++++++++++++++---------- > 1 file changed, 17 insertions(+), 10 deletions(-) applied to mips-next. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]