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=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 B7AABC433FF for ; Tue, 30 Jul 2019 16:43:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8DC4220693 for ; Tue, 30 Jul 2019 16:43:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="HOl2oflI"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="giQuwOOg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728736AbfG3Qno (ORCPT ); Tue, 30 Jul 2019 12:43:44 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:58870 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726751AbfG3Qno (ORCPT ); Tue, 30 Jul 2019 12:43:44 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id B501560850; Tue, 30 Jul 2019 16:43:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1564505022; bh=nzlx+WA8YpyPWGC852+7ZM1qfO8l79oxasafpFjso+c=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=HOl2oflInJUHQq2PZ68pCYQNQYdFCO+4JJDpEmNEvs49i4kZiqV10RlrLP2bhZs8c S8a2q/z0w9eWP1x6/KjBQtyEkYlMei1S6kRHUYDaKQ7lDM1zr0kp+CsX7VLlMzCuJg D1DVLX47+Yjxz05bcWdpCbU3/E19t0Csq//tIpEg= Received: from [10.79.43.230] (blr-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sibis@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 915F3602BC; Tue, 30 Jul 2019 16:43:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1564505021; bh=nzlx+WA8YpyPWGC852+7ZM1qfO8l79oxasafpFjso+c=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=giQuwOOght+bx4P3Ia3F/fMlV8ERnpI8PRUC20JNo8qJIr0KXTBoby48qa2lmfAL3 /sjUn3+QJrx6sOjCwtrE0B9gbngmM9FIWZ+mHQU8Mw+UTzw7yW8VPEn4fp4sp6F6Sr ozzHq2Z2qC/0vcVOmmA1Kz7Ad2G+XJ/GhSIGQFoo= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 915F3602BC Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=sibis@codeaurora.org Subject: Re: [PATCH v4 0/3] Introduce Bandwidth OPPs for interconnects To: Saravana Kannan Cc: Viresh Kumar , Georgi Djakov , Rob Herring , Mark Rutland , Viresh Kumar , Nishanth Menon , Stephen Boyd , "Rafael J. Wysocki" , Vincent Guittot , "Sweeney, Sean" , David Dai , adharmap@codeaurora.org, Rajendra Nayak , Bjorn Andersson , Evan Green , Android Kernel Team , Linux PM , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , LKML References: <20190726231558.175130-1-saravanak@google.com> <20190729093545.kvnqxjkyx4nogddk@vireshk-i7> <20190730024640.xk27jgdfl2j6ucx7@vireshk-i7> <361effba-4433-24d9-243c-201af39214cc@codeaurora.org> From: Sibi Sankar Message-ID: Date: Tue, 30 Jul 2019 22:13:34 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/30/19 11:23 AM, Saravana Kannan wrote: > On Mon, Jul 29, 2019 at 10:28 PM Sibi Sankar wrote: >> >> Hey Viresh, >> >> On 7/30/19 8:16 AM, Viresh Kumar wrote: >>> On 29-07-19, 13:16, Saravana Kannan wrote: >>>> Sibi might be working on doing that for the SDM845 CPUfreq driver. >>>> Georgi could also change his GPU driver use case to use this BW OPP >>>> table and required-opps. >>>> >>>> The problem is that people don't want to start using this until we >>>> decide on the DT representation. So it's like a chicken and egg >>>> situation. >>> >>> Yeah, I agree to that. >>> >>> @Georgi and @Sibi: This is your chance to speak up about the proposal >>> from Saravana and if you find anything wrong with them. And specially >>> that it is mostly about interconnects here, I would like to have an >>> explicit Ack from Georgi on this. >>> >>> And if you guys are all okay about this then please at least commit >>> that you will convert your stuff based on this in coming days. >> >> I've been using both Saravana's and Georgi's series for a while >> now to scale DDR and L3 on SDM845. There is currently no consensus >> as to where the votes are to be actuated from, hence couldn't post >> anything out. >> >> DCVS based on Saravana's series + passive governor: >> https://github.com/QuinAsura/linux/tree/lnext-072619-SK-series > > Thanks Sibi! You might want to convert your patches so that until the > passive governor is ready, you just look up the required opps and vote > for BW directly from the cpufreq driver. Once devfreq governor is > ready, you can switch to it. Sure I'll do that. > > -Saravana > >> >> DCVS based on Georgi's series: (I had already posted this out) >> https://github.com/QuinAsura/linux/tree/lnext-072619-GJ-series >> >> -- >> Qualcomm Innovation Center, Inc. >> Qualcomm Innovation Center, Inc, is a member of Code Aurora Forum, >> a Linux Foundation Collaborative Project -- Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc, is a member of Code Aurora Forum, a Linux Foundation Collaborative Project