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=-12.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,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 A17B8C433E0 for ; Wed, 17 Mar 2021 09:15:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7958D64F18 for ; Wed, 17 Mar 2021 09:15:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231270AbhCQJPC (ORCPT ); Wed, 17 Mar 2021 05:15:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231139AbhCQJOv (ORCPT ); Wed, 17 Mar 2021 05:14:51 -0400 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A006C061760 for ; Wed, 17 Mar 2021 02:14:50 -0700 (PDT) Received: by mail-wm1-x334.google.com with SMTP id g8so1016348wmd.4 for ; Wed, 17 Mar 2021 02:14:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=3+HI/szBQ5FOTyD8Qug4Foc8OSZhCyYiT6v5FkPNKc8=; b=jeHJzjXWMszguZe7MoOivSMUVkwfy3EYx2A2MqbLsl+1PdJgoyYc39we0KfZe9tKxS uwGsA6QFEQ7TiQt6NbHQGhxkUUgppZ2JuMnVlI4uCaBRl70txyvrEaCzfhNFgK4TEFiQ 4Ccbhy8TcLH41EQrKS8+0/IXvGx3xYDg2X9W7kQ5Cy3J4F235hwbNN3ac6cIEVMD+oKL hZGoTZFsvK7FY1tNpOoyBQEY+INJv2SITH6y13iP0cxAIiayHxD4ZJePbKi5AOw1crIw /0cz7nCmI1Ldm4OkCutFVGSOqfGnR9TohqECuM6vK2SGyrbuKzKLiQHEmjhaKu4Z6p71 ADUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=3+HI/szBQ5FOTyD8Qug4Foc8OSZhCyYiT6v5FkPNKc8=; b=Kw9Kp81Dzp1RHrXyI89PX6DJhvgZfEGltZL3GBu/DfetM7g8gJHuBvnFqnN8P+a/Vv 3cz1OFuuAArLKGjmlyxiPS6UY5h9tQS54KP+tgcvu3UVPwssg/bp4eBWrjysEz8o5r9n 9CS2DmbNRHKMvPdfcMwcVlviwVD3ODG8FiX/3ejIUI0d4XgJB4RiVlByTNbT06QslLA+ VBscMEIDOJlOEZYs0oMrFblRZ04tvqmc/7bl6lyIirLMQgPBMC3Mc4QkqZHMsW90XCWU KNQ6x5hOZNDEgwdHHjFdAHjWXs928s7Vylk4exIVzvwCM+VrJD9x+43Alk3EmJ64pHx0 /4wA== X-Gm-Message-State: AOAM533UlVMzo3xpmourZPxbzbUw8NBzxZ1F2jnBASTdsxCyIphxXE2e Wdal4qtuO5OpSmUashkcJWFNaA== X-Google-Smtp-Source: ABdhPJwV4NfelpdpRCyF9uOCtCgelxHcUPbS1hKlsP3rXiknagWHrC5091KByav6fHAr2xdUa6cLag== X-Received: by 2002:a05:600c:4844:: with SMTP id j4mr2685735wmo.179.1615972489089; Wed, 17 Mar 2021 02:14:49 -0700 (PDT) Received: from ?IPv6:2a01:e34:ed2f:f020:94c7:f1f0:53fd:90e4? ([2a01:e34:ed2f:f020:94c7:f1f0:53fd:90e4]) by smtp.googlemail.com with ESMTPSA id l4sm24546688wrt.60.2021.03.17.02.14.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 17 Mar 2021 02:14:48 -0700 (PDT) Subject: Re: [PATCH 1/2] csky: Enable generic clockevent broadcast To: guoren@kernel.org, arnd@arndb.de Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren , Thomas Gleixner References: <20210307022446.63732-1-guoren@kernel.org> From: Daniel Lezcano Message-ID: <4e57c0f2-c718-01c1-032a-8e4934496b17@linaro.org> Date: Wed, 17 Mar 2021 10:14:47 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210307022446.63732-1-guoren@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On 07/03/2021 03:24, guoren@kernel.org wrote: > From: Guo Ren > > When percpu-timers are stopped by deep power saving mode, we need > system timer help to broadcast IPI_TIMER. > > This is first introduced by broken x86 hardware, where the local apic > timer stops in C3 state. But many other architectures(powerpc, mips, > arm, hexagon, openrisc, sh) have supported the infrastructure to > deal with Power Management issues. > > Signed-off-by: Guo Ren > Cc: Arnd Bergmann > Cc: Thomas Gleixner > Cc: Daniel Lezcano > --- Acked-by: Daniel Lezcano -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog