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=-7.0 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 2F8FCC433DF for ; Tue, 4 Aug 2020 17:20:52 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 07728206C0 for ; Tue, 4 Aug 2020 17:20:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="qhxGPY2W"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="NBHUSzIG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 07728206C0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=qpk8nwBsNWfRof06b8xTMW6TEFzYZ6b5HSfEhUC2fqg=; b=qhxGPY2WYXDkKGIuXaOvWOsth EYcjhM2mRDxrrmkMy9sT3gI1ZWZLvy3oRyK1/9u9q4wUIgfxDvvDTQYZVXDjb5zFold4+/4YpMEYg agit99FTqI4Pp16b6/nh+Bzb6WYYMh8ImGoqOfrfVwGcOXsP/dNEDNRy1HLCGEZ6+8eH1vgW5+GFH YNcbfsLAyQQhYheQ0J228qudBPf0uGzWhR/5dxsVFvQpMCN0EORmHRqaBYNxQqpq9aaMTMyFCAar8 ZosDGElAtO9+SVHx18Ou8gRa7GGhx/OxvAbZGr54I99vaIwW+umTEUsmOplAVt0Omg8bgnf9/8GPL DpEVyVm3w==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k30bA-0000Pu-MX; Tue, 04 Aug 2020 17:19:36 +0000 Received: from mail-pj1-x1043.google.com ([2607:f8b0:4864:20::1043]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k30b8-0000PB-Us for linux-arm-kernel@lists.infradead.org; Tue, 04 Aug 2020 17:19:35 +0000 Received: by mail-pj1-x1043.google.com with SMTP id c6so2695380pje.1 for ; Tue, 04 Aug 2020 10:19:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=4w/Ljx5lsCqOPOdBCcxxVX9P69TJXsiTDGuIgF1vcBw=; b=NBHUSzIGKhb6NUmUeOIXUxLVmH9RkXdBf4yyBesE29jjXSZC4EoHgbkSfudGxL+wNI MRZaF2kq8vT4L2Kmv55+ABK9N+mD2kVf2h/4FnxTwFdbgBkIZeVhmYxSnz5XiVeEoA7p y91ohIP+q5denOE2vALGF5Jod/piN+3PbCz5GT9tl+DeoAOxvbTFClCuRXd6l+LQN+Hl w7/enjTq4MSYjz4pzYl8tLn/MIcfeBNwt3JwdE8ByERQo6zqaVf0DiwA/UrCGJsTSSZA bnqW1wHbTzTFYkZvP2dmA5wClDZObwFcrkOvquM4Sw8TgktR5+5g6WkwL29Xr9FxHMGc O4Fw== 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=4w/Ljx5lsCqOPOdBCcxxVX9P69TJXsiTDGuIgF1vcBw=; b=l8xvK1wjd2KqBIevqf663OKCGLCf3+E/gDLNUhL95eNSxS+6GKlQGWvDdFoDo6LUHy fZxHEHHcrczjUvWgOJyDQPvvgoMHZvh78IGz0pEnpuD+gg4BA0c+Err5gBzAsbz+ZIfr 19zuFNFXOgcv9nLTQJC1+XsFiYmU1hXPI8QxU0Ss0P+2ZPmwLLYxJqXZZno8LugFW/mt sGceBau6PepCThG6fvCjcUulBbVMYHPogkLL2L68SewG6ZsHXpyqkHkbb7QTpxsgbHYp dRV/m/qHXciHOfspT7/NyFRCcvMdOPj2DBm9K+kMvRARS8VraksDcZu42NkUrk3KBUkY CukA== X-Gm-Message-State: AOAM531Ryv1Q9nChGpJm17AJ1HLMuFLllFA/K4PZJggZ7zP2irYun4YO EfOgAWW1pR/f9k+5YZ3jit4= X-Google-Smtp-Source: ABdhPJxsvhyOma8LtgCrM0D2bxYl6kyeZUCw326WO0i/Vc+Ad8kORjOw/NSgm/IxSsxY/xCZ221Dyg== X-Received: by 2002:a17:902:b58f:: with SMTP id a15mr20346433pls.87.1596561571391; Tue, 04 Aug 2020 10:19:31 -0700 (PDT) Received: from [10.230.30.107] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id na14sm2843191pjb.6.2020.08.04.10.19.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 04 Aug 2020 10:19:30 -0700 (PDT) Subject: Re: [PATCH 0/4] CPUFreq statistics retrieved by drivers To: Sudeep Holla , Lukasz Luba References: <20200729151208.27737-1-lukasz.luba@arm.com> <20200730085333.qubrsv7ufqninihd@vireshk-mac-ubuntu> <20200730091014.GA13158@bogus> <3b3a56e9-29ec-958f-fb3b-c689a9389d2f@arm.com> <20200731155650.GC14529@bogus> From: Florian Fainelli Message-ID: Date: Tue, 4 Aug 2020 10:19:23 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Firefox/68.0 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200731155650.GC14529@bogus> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200804_131935_031761_05E5AF06 X-CRM114-Status: GOOD ( 19.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-pm@vger.kernel.org, Viresh Kumar , rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, cristian.marussi@arm.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 7/31/2020 8:56 AM, Sudeep Holla wrote: > On Thu, Jul 30, 2020 at 10:36:51AM +0100, Lukasz Luba wrote: >> >> In this case I think we would have to create debugfs. >> Sudeep do you think these debugfs should be exposed from the protocol >> layer: >> drivers/firmware/arm_scmi/perf.c > > I prefer above over cpufreq as we can support for all the devices not > just cpus which avoids adding similar support elsewhere(mostly devfreq) > >> or maybe from the cpufreq scmi driver? I would probably be safer to have >> it in the cpufreq driver because we have scmi_handle there. >> > > Cristian was thinking if we can consolidate all such debugfs under one > device may be and that should eliminate your handle restriction. I would > like to see how that works out in implementation but I don't have any > better suggestion ATM. debugfs is not enabled in production kernels, and especially not with Android kernels, so sticking those in sysfs like the existing cpufreq subsystem statistics may be a better choice. -- Florian _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel