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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 83124C2D0E2 for ; Thu, 24 Sep 2020 09:52:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2FCB12396E for ; Thu, 24 Sep 2020 09:52:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727375AbgIXJwu (ORCPT ); Thu, 24 Sep 2020 05:52:50 -0400 Received: from foss.arm.com ([217.140.110.172]:40392 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726380AbgIXJwt (ORCPT ); Thu, 24 Sep 2020 05:52:49 -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 1CB2D113E; Thu, 24 Sep 2020 02:52:49 -0700 (PDT) Received: from ubuntu.arm.com (unknown [10.57.15.115]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 201213F73B; Thu, 24 Sep 2020 02:52:46 -0700 (PDT) From: Nicola Mazzucato To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, sudeep.holla@arm.com, rjw@rjwysocki.net, vireshk@kernel.org, robh+dt@kernel.org, daniel.lezcano@linaro.org Cc: morten.rasmussen@arm.com, chris.redpath@arm.com, nicola.mazzucato@arm.com Subject: [PATCH v2 0/2] CPUFreq: Add support for cpu performance dependencies Date: Thu, 24 Sep 2020 10:53:45 +0100 Message-Id: <20200924095347.32148-1-nicola.mazzucato@arm.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Rob, Rafael, Viresh, Daniel and Sudeep, I am proposing the addition of performance dependencies in cpufreq core and one if its drivers (the implementation/approach is RFC). This is to support systems where exposed cpu performance controls are more fine-grained that the platform's ability to scale cpus independently. In this V2 posting of the proposed dt-binding to support this, I have included an outline of how this information can be stored and passed onto relevant OSPM frameworks. Please see each patch for detailed information. [v2] * Fix errors when running make dt_binding_check * Improve commit message description for the dt-binding * Add RFC for implementation in cpufreq-core and one of its drivers. Nicola Mazzucato (2): dt-bindings: arm: Add devicetree binding for cpu-performance-dependencies [RFC] CPUFreq: Add support for cpu-perf-dependencies .../bindings/arm/cpu-perf-dependencies.yaml | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/cpu-perf-dependencies.yaml -- 2.27.0 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=-8.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 F3B30C2D0E2 for ; Thu, 24 Sep 2020 09:54:22 +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 6D41623977 for ; Thu, 24 Sep 2020 09:54:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="W6T2VVyT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6D41623977 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.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:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=f8BDSnzam83NaNLReGlb/3CMOq06leBkiFuCAOxDiyk=; b=W6T2VVyT2E/5Jxltknfya8XCi6 uDQKfDGBYE8qQI2ZQxcSdSjSiwORTP7H2H/Ny/RwkwJkb2YI22tugZd6lE6rnyencswrwNiSB/mR+ D3iA4HIEdGBicoINgIomO+h/LHP2decTBsk+7pkrc1iPPZPkQouBWT0ZE4iwegiusDaJuGA8cp+x2 1anjytu3lqFDsBN2wH7xSmBw/ZvIJrW2pKSl9K1pHilqUsaE8QRnB5Xum1acTh16KRZiSwKAg1PnD K5ZaBei3yamG7KM2RpnCdSNMKQIYyPy6WPj9inZ0qDvU90vaxvzVqauwxKZgydCyEb8VXkrT6diG+ cyJI1qTQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kLNvq-0000Xf-Nj; Thu, 24 Sep 2020 09:52:54 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kLNvn-0000WE-Jt for linux-arm-kernel@lists.infradead.org; Thu, 24 Sep 2020 09:52:52 +0000 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 1CB2D113E; Thu, 24 Sep 2020 02:52:49 -0700 (PDT) Received: from ubuntu.arm.com (unknown [10.57.15.115]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 201213F73B; Thu, 24 Sep 2020 02:52:46 -0700 (PDT) From: Nicola Mazzucato To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, sudeep.holla@arm.com, rjw@rjwysocki.net, vireshk@kernel.org, robh+dt@kernel.org, daniel.lezcano@linaro.org Subject: [PATCH v2 0/2] CPUFreq: Add support for cpu performance dependencies Date: Thu, 24 Sep 2020 10:53:45 +0100 Message-Id: <20200924095347.32148-1-nicola.mazzucato@arm.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200924_055251_765043_0AF4DB61 X-CRM114-Status: GOOD ( 11.81 ) 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: chris.redpath@arm.com, morten.rasmussen@arm.com, nicola.mazzucato@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 Hi Rob, Rafael, Viresh, Daniel and Sudeep, I am proposing the addition of performance dependencies in cpufreq core and one if its drivers (the implementation/approach is RFC). This is to support systems where exposed cpu performance controls are more fine-grained that the platform's ability to scale cpus independently. In this V2 posting of the proposed dt-binding to support this, I have included an outline of how this information can be stored and passed onto relevant OSPM frameworks. Please see each patch for detailed information. [v2] * Fix errors when running make dt_binding_check * Improve commit message description for the dt-binding * Add RFC for implementation in cpufreq-core and one of its drivers. Nicola Mazzucato (2): dt-bindings: arm: Add devicetree binding for cpu-performance-dependencies [RFC] CPUFreq: Add support for cpu-perf-dependencies .../bindings/arm/cpu-perf-dependencies.yaml | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/cpu-perf-dependencies.yaml -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel