Received: by 2002:a25:683:0:0:0:0:0 with SMTP id 125csp383962ybg; Wed, 3 Jun 2020 03:20:57 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyVMAuVC6R1npCTeTYMNxz1QPNJW/N1xY346rYJ2YzdH1bcQPQ2j5DNhXSCmp2o0J/RHz/6 X-Received: by 2002:a17:906:a398:: with SMTP id k24mr6675722ejz.220.1591179657163; Wed, 03 Jun 2020 03:20:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1591179657; cv=none; d=google.com; s=arc-20160816; b=km1wYQWR0Jjbycpf76CFOvq2/cyzZC1spQAUHf9R0QWiIOh9XTx8gp3qjO5WmbofKo 59JLcy5wcZnFdjteLRi/cZ/wTWVn8/t/OwfZD5aHEk8QqIAP6YMUQqVDxINpt5tFNGK4 C/WUAw58eOK5XZCr3n8EpnxfBI9dlOGHdlRP4JHkc5Le3MGQqN5ar8e+MYINMJVtUCJ0 JUHzZHNkpFO6u/g2dznzFitJ/FIBCE9T+f7aO6V6LItQHep0rJl6pS4FTHovE7KFPR4s gGExdmT0YIkYbsuAEa+xJzwKMzCr6QNeP73mWibNb6ydPYZDtVrDlqbD3XhgdLMPQ6wS tFNA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-transfer-encoding:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=eaVYOjs54+N7BZpFUZyY4RgnMrW9q93ZFtt2u7pMJsw=; b=kmRcXLALxUi6sar8EMy6YHG82NbIjQBUzSBdI3zZAPsJGiMnYDiC65keS5zDKqc39M XAPWyRQj9ueeEQAfY/+dJgA0pwZrMhVpBUGjhay5Riv8YFILO0S0L0qycHJqHtx9jUV1 zhhbHAvLlCAVpO0CnyKojeyxWkUvYgavdnMFE5cWtGoHFCR4VWOGRPaQ6imCz3nPmGrX TZYiH+9Uj4EbUqmvMgXObnBZeqLm2RTn8NNuKymqAb3ov4obsDUptJgLInCyK5OjJmKE tzIeyaDFDavlnt7SZkvM/yFEKJJQjUXcUvRhYQTk9+rLYp8mhCj3Bp02EEovMH/bw+IE czQg== 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 d4si881542ejw.326.2020.06.03.03.20.33; Wed, 03 Jun 2020 03:20:57 -0700 (PDT) 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 S1726718AbgFCKR7 (ORCPT + 99 others); Wed, 3 Jun 2020 06:17:59 -0400 Received: from foss.arm.com ([217.140.110.172]:59584 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726393AbgFCKR6 (ORCPT ); Wed, 3 Jun 2020 06:17:58 -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 E101131B; Wed, 3 Jun 2020 03:17:57 -0700 (PDT) Received: from bogus (unknown [10.37.12.118]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 59CE13F305; Wed, 3 Jun 2020 03:17:56 -0700 (PDT) Date: Wed, 3 Jun 2020 11:17:53 +0100 From: Sudeep Holla To: Viresh Kumar Cc: Xiongfeng Wang , rjw@rjwysocki.net, guohanjun@huawei.com, ionela.voinescu@arm.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Sudeep Holla Subject: Re: [Question]: about 'cpuinfo_cur_freq' shown in sysfs when the CPU is in idle state Message-ID: <20200603101753.GC7259@bogus> References: <20200603075200.hbyofgcyiwocl565@vireshk-i7> <20200603100727.GB7259@bogus> <20200603101010.alijrfmte2c6xv5c@vireshk-i7> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20200603101010.alijrfmte2c6xv5c@vireshk-i7> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 03, 2020 at 03:40:10PM +0530, Viresh Kumar wrote: > On 03-06-20, 11:07, Sudeep Holla wrote: > > But I have another question. If we can detect that CPPC on some platforms > > rely on CPU registers(I assume FFH registers here and not system/io/... > > type of GAS registers), can we set dvfs_on_any_cpu(can't recall exact > > flag name) to false if not already done to prevent such issues. Or I am > > talking non-sense as it may be applicable only for _set operation and > > Yes, non-sense :) > Thanks for confirming ????. -- Regards, Sudeep