Received: by 2002:ac0:a5a6:0:0:0:0:0 with SMTP id m35-v6csp4149273imm; Mon, 17 Sep 2018 08:57:06 -0700 (PDT) X-Google-Smtp-Source: ANB0VdbV0wwzfzYZ+QwgJXTj1s3kowDxBM+e1fnhs+r4ahnCCaCDzGANjrrgPUcQak1GVJJt+XfM X-Received: by 2002:a17:902:a715:: with SMTP id w21-v6mr25499965plq.61.1537199825953; Mon, 17 Sep 2018 08:57:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1537199825; cv=none; d=google.com; s=arc-20160816; b=tuoNFVXA7SmSgPkvH4lt7xacrmpllT/TlgsghQ9VWe2jtmawClJMiy46Ek3PJ8CASi WUxRuSly+j+G6VqgGoMp7Z/vW5v2ft6/xO68g6H16DfW39y40ldKeiCPkFvOarovqcWC 2TKHDky7gRzGWmjHsXDwfaOzuFuOLrNeb11ek7V8/vlMYyKIDp5sjWqPu+Uh3nWiW/0F w+bYw1pNWbTr22ZXithZ2kGSwa9kNNkBeIbA5CAXMYBdmA2vKPmOQmQA1Ij7mmfYtq+0 M4HIJptNxWRDpNhfVa/ercYyfxBHLbBRPpwfsgLECTAQx0OCmemVEF24vnyfmerM1dWi nQpQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=fvzl9H3xPJzLzHnnsDcqJvOeljahJanEEgDBqdLYdMQ=; b=YQs4pmqLR3Yu3Jr+dgZNnkwcfj+PSnNxh+krvrk4A3r86t984zgFMzvpt8uWD2tIOL Dn622uRMID3Vbh5SXQ1j7GM0WLrDRO7T2K8A2EYQdLY42RMeSU9QM/9ALhsJO322CaOf p6FwindtgBGKh8A/U8A3SpUhTNzZO0IkSIjb21BsWc4y5Uuk4r0J3oba28njKWmhloe8 JOFPP/68nzGpXuMmiuGV3zVRSOYR0n/1XcwzlEyE9Jbmmo4CdO4DGpf+47rpqine1T5k IH1sKFo6aPpmaz4s8TobndZZKwk+bj0ZgizDORC6Vu1Vo0gC40KnAQci8Dgv1N1o9/W3 EpOw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@brainfault-org.20150623.gappssmtp.com header.s=20150623 header.b="0UPs1kc/"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id d7-v6si15803736plo.253.2018.09.17.08.56.50; Mon, 17 Sep 2018 08:57:05 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@brainfault-org.20150623.gappssmtp.com header.s=20150623 header.b="0UPs1kc/"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728726AbeIQVWl (ORCPT + 99 others); Mon, 17 Sep 2018 17:22:41 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:43600 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728379AbeIQVWl (ORCPT ); Mon, 17 Sep 2018 17:22:41 -0400 Received: by mail-wr1-f66.google.com with SMTP id k5-v6so17858640wre.10 for ; Mon, 17 Sep 2018 08:54:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brainfault-org.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=fvzl9H3xPJzLzHnnsDcqJvOeljahJanEEgDBqdLYdMQ=; b=0UPs1kc/PQYzgjvW9LT+kfCQ5VTmt8ce38+s6EvyhgZeKWTH4dAnO6Mlv6Hzvr4fuk 7Iv1REzp8Sw7xlHvHSu4COR1hjYWDwtQliqlAQNUDOVwrATv3PmHd52knT2thuLsACVV 2MsdUts7o9E8btx1028IIjJczn3O/Q2jVfpAArDhPTLsgwzn5YtDoEprT9iAYyrdLfz8 LFr701cNM1XoIjHpG7xCn+0KhXmGdUchOyg6Yt/7wU4ayFvccxSzr/8pjKSndjTsFrsl YE3hkDlIdGDoABw4Q2fTgDv7UTS4hioSs00ETm941IGhwlH8dNiYTcuZwvSDZu818IJW EH9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=fvzl9H3xPJzLzHnnsDcqJvOeljahJanEEgDBqdLYdMQ=; b=hirdrEdM+hXlAQNIywfLF5OrZgLACB+t74lLczsELo2Ui76HCuZUeRZsCyu2LQbSBv IXwK3Q8ddSV+5kQhpVjV58PLFTzLdvV68SKDbHHCVI/QQ7tnsoTpdyTho7X6HP5TZsRm CRgFKicinfoJ9/7JYO6iNwByOjcI9R+duGxcp0EpoPY1F68NKnyWpyR7zWghff5QVLKv /d9S294EPLBNkOlQi+DG/QfxgNUL/XAQlMgPximyh9udXFCkk0ZalyHPZVn43nVYFL2l SncBeqkvL4RVyQWlkSwiHTZhJiOzbweRnR6cmahemCeTQvAdwuGweqkxBxNykJ6rSjEL VACA== X-Gm-Message-State: APzg51DsMJ/S9b34d1KmOKuxfM2IRbEttTy6eTF51OXGX5B6dUk/a48X VfgEL2KRh62f2rcixBjYI1N8WUbWJgm2tJhwExeYZQ== X-Received: by 2002:adf:f5c9:: with SMTP id k9-v6mr20055039wrp.59.1537199683131; Mon, 17 Sep 2018 08:54:43 -0700 (PDT) MIME-Version: 1.0 References: <1536962096-233842-1-git-send-email-atish.patra@wdc.com> <1536962096-233842-4-git-send-email-atish.patra@wdc.com> <20180917143550.GC15588@infradead.org> <20180917150149.GA25348@infradead.org> In-Reply-To: From: Anup Patel Date: Mon, 17 Sep 2018 21:24:31 +0530 Message-ID: Subject: Re: [RFC 3/3] RISC-V: Remove per cpu clocksource To: Thomas Gleixner Cc: Christoph Hellwig , Atish Patra , Palmer Dabbelt , linux-riscv@lists.infradead.org, Mark Rutland , robh@kernel.org, Damien Le Moal , Marc Zyngier , "linux-kernel@vger.kernel.org List" Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 17, 2018 at 8:35 PM Thomas Gleixner wrote: > > On Mon, 17 Sep 2018, Christoph Hellwig wrote: > > > Just for the record, this would be the first (architected) timer ever which > > > just works. I'm having a hard time to believe this, but I'd certainly > > > welcome it. > > > > And that would be the contact with reality. > > I've dealt with the reality of timers for a long time .... I think the problem is we don't have separate DT node for RISC-V timer. Instead, we have been probing timer for each CPU DT node. Ideally, we should have one DT node for RISC-V timer and the DT should should also describe the local interrupts to be used for RISC-V timer. Regards, Anup