From patchwork Fri Feb 7 05:26:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Boichat X-Patchwork-Id: 1234737 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256 header.s=google header.b=iHfAblZm; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48DP1h5dn7z9sSN for ; Fri, 7 Feb 2020 16:27:04 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726451AbgBGF0v (ORCPT ); Fri, 7 Feb 2020 00:26:51 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:42966 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725837AbgBGF0u (ORCPT ); Fri, 7 Feb 2020 00:26:50 -0500 Received: by mail-pl1-f195.google.com with SMTP id e8so515119plt.9 for ; Thu, 06 Feb 2020 21:26:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/zB9xLJSCEmcEROv88A82DPGekOIdz0Re4N4EUvv7YQ=; b=iHfAblZm+66QNJpVWC8jKplx2ZNZqjZfzjQmcBKuD+0bxVGGTQ5lOzM36vtl1ggI/y BOf4sQDqdKsGpwT3fK2xC4db5Y6c9+OsKKLAZoyvCpfNiMc7AWpgFmE6LjIs8qtiPXfQ m1bMLy5a60UKdJJA50YccQmyGqBD0HQibNMpk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=/zB9xLJSCEmcEROv88A82DPGekOIdz0Re4N4EUvv7YQ=; b=aobqvzUplwVlNhU/gJQ6BXcGmV87ARoGjxYajkqE2QMhlyMfwCrjz4fulv+Ef0Ua5v O6COZ9sqWM4YVTACbQcC4E7efe4zcDO2n/NfKGjIzW3FTadKpNQH/lHbNjP18uYQFZaR pA9MJ26HWf9y9pPww7zzWsjWzbV6CjQIgHXDaSXeFed+7I+7l5huP+Upw11xmo+beOM/ 2fMlcU/qjQZ96bwlWR0fztLZRpIJsi0yGDkIn8JvU3QFWqKmX76lp33aPvdAwQwUIbJG 4zP1wQO5rrQa6OakioVvintw/27zDR9bgJpm53N2nlnH985bUYGLJJGt7DshBadC8pp1 yakw== X-Gm-Message-State: APjAAAWUCXP7bLVsKg4Iu5chMxtdJnjkStEe6OaoH3sTjvy6Dkgu+SL2 r8LBbC9D3cp17cpskIgJOZs8Bw== X-Google-Smtp-Source: APXvYqwDhczmXZwMAxUZru60y6Afvx+soks2DBAlo9PuHeMARGx+nULMRNQyK00qlg2Fi3ADU5IOrQ== X-Received: by 2002:a17:90a:a48a:: with SMTP id z10mr1822467pjp.52.1581053208716; Thu, 06 Feb 2020 21:26:48 -0800 (PST) Received: from drinkcat2.tpe.corp.google.com ([2401:fa00:1:b:d8b7:33af:adcb:b648]) by smtp.gmail.com with ESMTPSA id i66sm1174485pfg.85.2020.02.06.21.26.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Feb 2020 21:26:47 -0800 (PST) From: Nicolas Boichat To: Rob Herring Cc: David Airlie , Daniel Vetter , Mark Rutland , Matthias Brugger , Tomeu Vizoso , Steven Price , Alyssa Rosenzweig , Liam Girdwood , Mark Brown , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, hsinyi@chromium.org, ulf.hansson@linaro.org Subject: [PATCH v4 0/7] Add dts for mt8183 GPU (and misc panfrost patches) Date: Fri, 7 Feb 2020 13:26:20 +0800 Message-Id: <20200207052627.130118-1-drinkcat@chromium.org> X-Mailer: git-send-email 2.25.0.341.g760bfbb309-goog MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi! Follow-up on the v3: https://patchwork.kernel.org/cover/11331343/. The main purpose of this series is to upstream the dts change and the binding document, but I wanted to see how far I could probe the GPU, to check that the binding is indeed correct. The rest of the patches are RFC/work-in-progress, but I think some of them could already be picked up. So this is tested on MT8183 with a chromeos-4.19 kernel, and a ton of backports to get the latest panfrost driver (I should probably try on linux-next at some point but this was the path of least resistance). I tested it as a module as it's more challenging (originally probing would work built-in, on boot, but not as a module, as I didn't have the power domain changes, and all power domains are on by default during boot). Probing logs looks like this, currently. They look sane. [ 501.319728] panfrost 13040000.gpu: clock rate = 511999970 [ 501.320041] panfrost 13040000.gpu: Linked as a consumer to regulator.14 [ 501.320102] panfrost 13040000.gpu: Linked as a consumer to regulator.31 [ 501.320651] panfrost 13040000.gpu: Linked as a consumer to genpd:0:13040000.gpu [ 501.320954] panfrost 13040000.gpu: Linked as a consumer to genpd:1:13040000.gpu [ 501.321062] panfrost 13040000.gpu: Linked as a consumer to genpd:2:13040000.gpu [ 501.321734] panfrost 13040000.gpu: mali-g72 id 0x6221 major 0x0 minor 0x3 status 0x0 [ 501.321741] panfrost 13040000.gpu: features: 00000000,13de77ff, issues: 00000000,00000400 [ 501.321747] panfrost 13040000.gpu: Features: L2:0x07120206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xff JS:0x7 [ 501.321752] panfrost 13040000.gpu: shader_present=0x7 l2_present=0x1 [ 501.324951] [drm] Initialized panfrost 1.1.0 20180908 for 13040000.gpu on minor 2 Some more changes are still required to get devfreq working, and of course I do not have a userspace driver to test this with. I believe at least patches 1, 2, and 3 can be merged. 4 and 5 are mostly useful in conjunction with 6 and 7 (which are not ready yet), so I'll let maintainers decide. Thanks! Nicolas Boichat (7): dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 arm64: dts: mt8183: Add node for the Mali GPU drm/panfrost: Improve error reporting in panfrost_gpu_power_on drm/panfrost: Add support for multiple regulators drm/panfrost: Add support for multiple power domains RFC: drm/panfrost: Add mt8183-mali compatible string RFC: drm/panfrost: devfreq: Add support for 2 regulators .../bindings/gpu/arm,mali-bifrost.yaml | 25 ++++ arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 7 + arch/arm64/boot/dts/mediatek/mt8183.dtsi | 105 +++++++++++++++ drivers/gpu/drm/panfrost/panfrost_devfreq.c | 17 +++ drivers/gpu/drm/panfrost/panfrost_device.c | 123 +++++++++++++++--- drivers/gpu/drm/panfrost/panfrost_device.h | 27 +++- drivers/gpu/drm/panfrost/panfrost_drv.c | 41 ++++-- drivers/gpu/drm/panfrost/panfrost_gpu.c | 11 +- 8 files changed, 326 insertions(+), 30 deletions(-) Reviewed-by: Ulf Hansson Reviewed-by: Steven Price Reviewed-by: Steven Price Reviewed-by: Matthias Brugger