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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 326EBECE587 for ; Tue, 1 Oct 2019 14:34:27 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 EE21E2070B for ; Tue, 1 Oct 2019 14:34:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="RJVb7KUm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EE21E2070B 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+infradead-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=bombadil.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:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=irZK/s1y3RxT2m5PVldnwAoqWJBlmDGo3JKs28O0UWM=; b=RJVb7KUmcpuDhK gp5z0H4BNVmZGKTTyZwnMhMjIYTGkANlFlxiO+yQbksfqznE8hfb4WUdVTWTg3y6YS15wq+1GiRhh UY2lR0WJ/ZQcrHL+xFwTfzPi/WInHt3MsGfcfA2l0Qz7TPDL7t25pex6N3qmWDcRireHTJ8A8ZT0c YA3zmtTntkM41aT742cDx8uHA1dRFWlCvXSSjTw3aAZ4jDmBe6E1t1Y3uEU2NF0dVrKd+beqG23OJ MOkin+cQGNFtPg8I/YLL2OlbqbITbwl5H8PLZDcESCitGC2mWrAQ5PGCdnXMgoU8f0HTnjstFrwMa YzNuG+ziqP3O0sHvL7Xw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iFJEM-0005Vh-LV; Tue, 01 Oct 2019 14:34:22 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iFJEI-0005QL-Ry for linux-arm-kernel@lists.infradead.org; Tue, 01 Oct 2019 14:34:20 +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 70B7D1000; Tue, 1 Oct 2019 07:34:16 -0700 (PDT) Received: from bogus (e107155-lin.cambridge.arm.com [10.1.196.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1DF583F71A; Tue, 1 Oct 2019 07:34:15 -0700 (PDT) Date: Tue, 1 Oct 2019 15:34:07 +0100 From: Sudeep Holla To: Robin Murphy Subject: Re: [PATCH 1/2] arm64: dts: juno: add GPU subsystem Message-ID: <20191001143350.GA404@bogus> References: <88dc6386929b3dcd7a65ba8063628c62b66b330c.1569856049.git.robin.murphy@arm.com> <20191001085954.GA10443@bogus> <2a3b2fe1-b08a-bc21-6f3b-4a595b51463c@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2a3b2fe1-b08a-bc21-6f3b-4a595b51463c@arm.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191001_073418_950753_9D20BDB8 X-CRM114-Status: GOOD ( 19.29 ) 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: Rob Herring , Lorenzo Pieralisi , Tomeu Vizoso , devicetree@vger.kernel.org, Liviu Dudau , dri-devel , Steven Price , Sudeep Holla , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Oct 01, 2019 at 01:45:30PM +0100, Robin Murphy wrote: > On 01/10/2019 09:59, Sudeep Holla wrote: > > On Mon, Sep 30, 2019 at 12:46:33PM -0500, Rob Herring wrote: > > > On Mon, Sep 30, 2019 at 10:25 AM Robin Murphy wrote: > > > > > > > > Since we now have bindings for Mali Midgard GPUs, let's use them to > > > > describe Juno's GPU subsystem, if only because we can. Juno sports a > > > > Mali-T624 integrated behind an MMU-400 (as a gesture towards > > > > virtualisation), in their own dedicated power domain with DVFS > > > > controlled by the SCP. > > > > > > > > CC: Liviu Dudau > > > > CC: Sudeep Holla > > > > CC: Lorenzo Pieralisi > > > > Signed-off-by: Robin Murphy > > > > --- > > > > .../bindings/gpu/arm,mali-midgard.yaml | 5 +++- > > > > arch/arm64/boot/dts/arm/juno-base.dtsi | 27 +++++++++++++++++++ > > > > 2 files changed, 31 insertions(+), 1 deletion(-) > > > > > > Reviewed-by: Rob Herring > > > > If you plan to take it along with driver change, > > > > Acked-by: Sudeep Holla > > > > If not, please let us know. I can take it for v5.5 > > The driver change is debatable and not strictly necessary, so it probably > makes more sense to take this one through the VExpress tree on its own. I > wouldn't suggest flipping the status to "enabled" just yet, but it seems Sure, make sense. > worth putting the basic description in place as a jumping-off point for > folks to hack on (e.g. it's another 'interesting' case for devfreq OPP > stuff). IIUC, the devfreq support in panfrost driver should work fine with SCPI as it has clock provider for GPU DVFS. With SCMI, we don't want to hook to clock framework, but I am yet to come up with a sane generic way to add SCMI devfreq and integrate it with the panfrost devfreq. -- Regards, Sudeep _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel