Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp318805pxu; Fri, 4 Dec 2020 04:13:43 -0800 (PST) X-Google-Smtp-Source: ABdhPJzSHjlzSqRq5KeW6MwkoXNmFSewFF146CBCJ0i67CVYlUFgRiUtM6prYDzJBXJtTW/d4g8l X-Received: by 2002:a50:9eae:: with SMTP id a43mr7129996edf.109.1607084023107; Fri, 04 Dec 2020 04:13:43 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1607084023; cv=none; d=google.com; s=arc-20160816; b=0+Zlp6ndkVWb/HAErTQzctej3Lhg+i5IkIzLfxATFw9YeGeiJ/HApAowjIn4afksjM Ahh8DusPG8+R8PP0U58eR71Rw4XhZKF8ZYSGBsTRZb+klGbx79Z+yVAizr/GHQp4EUNM 8RwO3gBCBJUkhCyJaJPQaTS3Q3YSuadSKXHaLJgSzl4cqHvyllEKUwFfiaXE9EP7ZYOs mtZnbOP8EYhm/DoMECuIhZzI4rSusrDVJunnUuO9cpF40VD/myqSZDKxgkSb+QwyP6s3 fW+hlzdKNWnMtFtSO1IynmeNv6xL5ne+a74KQ1E1s2YV6oDx1MRg16GW4Gytvhb6mJhv 96og== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=WBXs+7kTNUClx3BUaZmuaWW4j+mM3zbKPmxSBegZ9TI=; b=D2crmWlaEQ+iTJHYJkia0MQzR83wXdjpIAHThx5pUOpr4OftNxc4mvBLFH9OyEOzLf 947Y+KRdD98gBzIbWA8pFK893OBNri3KxayWk5rOu0akH/NyR0pj5FOWUSGv0gym7h5v zNB0YCz6VZQKPtpjLDi3u8KNNmaYiZrb59AbqS1Kb0OXSfCHlI10a5vEFl8aiAg8QeA3 Db98f+9NohXsczDjCWzOUqT5iuFItEcfqn2NcHHAyCsfiLHruJ87s8WEyem5+rgkJQgK hv97ezg2YxEHzoolhoQiMmXzvyeHbzoRfJAQ/ecT6cv6cJSgqD28NUduG+ZRTyDYtS5s 0WfQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id d8si2528523edm.404.2020.12.04.04.13.20; Fri, 04 Dec 2020 04:13:43 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729960AbgLDMKy (ORCPT + 99 others); Fri, 4 Dec 2020 07:10:54 -0500 Received: from elvis.franken.de ([193.175.24.41]:48099 "EHLO elvis.franken.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728666AbgLDMKy (ORCPT ); Fri, 4 Dec 2020 07:10:54 -0500 Received: from uucp (helo=alpha) by elvis.franken.de with local-bsmtp (Exim 3.36 #1) id 1kl9ud-0005Nb-03; Fri, 04 Dec 2020 13:10:11 +0100 Received: by alpha.franken.de (Postfix, from userid 1000) id 21ACDC02E5; Fri, 4 Dec 2020 13:08:37 +0100 (CET) Date: Fri, 4 Dec 2020 13:08:37 +0100 From: Thomas Bogendoerfer To: Wei Li Cc: Paul Burton , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, yangyingliang@huawei.com, guohanjun@huawei.com Subject: Re: [PATCH] MIPS: SMP-CPS: Add support for irq migration when CPU offline Message-ID: <20201204120837.GD10011@alpha.franken.de> References: <20201203065443.11263-1-liwei391@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201203065443.11263-1-liwei391@huawei.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 03, 2020 at 02:54:43PM +0800, Wei Li wrote: > Currently we won't migrate irqs when offline CPUs, which has been > implemented on most architectures. That will lead to some devices work > incorrectly if the bound cores are offline. > > While that can be easily supported by enabling GENERIC_IRQ_MIGRATION. > But i don't pretty known the reason it was not supported on all MIPS > platforms. > > This patch add the support for irq migration on MIPS CPS platform, and > it's tested on the interAptiv processor. > > Signed-off-by: Wei Li > --- > arch/mips/Kconfig | 1 + > arch/mips/kernel/smp-cps.c | 2 ++ > 2 files changed, 3 insertions(+) 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 ]