From patchwork Tue Jan 14 07:15:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Boichat X-Patchwork-Id: 11331369 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8469413BD for ; Tue, 14 Jan 2020 07:17:17 +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 4D750207FD for ; Tue, 14 Jan 2020 07:17:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DvmgGqya"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="kpku5Ruy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D750207FD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.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:MIME-Version:References:In-Reply-To: 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: List-Owner; bh=hI/23uvAC+2QJgtELa/PMCJ9cUfo7PK0pe2/vzHGh0k=; b=DvmgGqyaIINchU hcX2dW9biXBNANzNALBn6n4flKw30dQFm6oUOf2xOSVvrlW53xqhwmDXNRWBzwo5qsgGov031qnrv kpmCQE7IuIPgL2iyqXJ99m2YN19XRF88JVnVo+Xpmjw/vbnPaxM9CeIfHGwotZOXEko6M6PJ0kAOq KIk93iufu1JRG32X1IMDeG6xEQxGC6yxsIbmaH9PHCFOMh/zRGNBc4yTwdKZhWOlOOCKji3pkYvJp 4b1XuX6B8KBYaB5yCOB0nSKJDYv7a2o48ILv+mGddecfHsodi3z2tR1cJbPW8VJXphctUyBuXoEgL EGOCYXwuRWT5zvYB0GUA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1irGRu-0004mb-Jr; Tue, 14 Jan 2020 07:17:14 +0000 Received: from mail-pl1-x644.google.com ([2607:f8b0:4864:20::644]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1irGR0-0003vI-9x for linux-mediatek@lists.infradead.org; Tue, 14 Jan 2020 07:16:20 +0000 Received: by mail-pl1-x644.google.com with SMTP id s21so4869724plr.7 for ; Mon, 13 Jan 2020 23:16:18 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=+Qk1FvG6eeViNWsiravQSfAZxl3lDcu4afmru4xzZG0=; b=kpku5RuywKMHl5ZcaerHmBR3blXr+BKVtuWbEftoijf6zbjlLpjhN91tXw35Fo58dn xTXhTbMh5ix0EZTaVErnFQDR5hNTEemNwcK4X3OpJEuhr2I/Ckiq0N4cHg4yN3NpUKzq PjDj62n+MeAuKGo/riGAaYYSsB4yZ3/JVkYBk= 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=+Qk1FvG6eeViNWsiravQSfAZxl3lDcu4afmru4xzZG0=; b=LcrQAb5C34+vOtabiPV0xpXzPsV9mHYFX5+OiFMXJQvUX18gA38+pVO2amdxiWC/JR J1A3ub5k5vvFxYhKisZoG4ywPTMh74BxBn2AZyQCEkk13QR4Xtzdk9pKXb6LWh59Uf6D BG0eZEz+OWsj/AmQwHCOVVEKPW2rQZBGDjRy4dA0IBfloGNqnDD9uSexUpnRWMSA/KBs rdV1uVwbgQyuIX5yvuIJb4o6YDsQj5hxWyfp8TAVxSkBPWA2dxguXxEuKldCE/2mavUp zOdbGQS8BUUVtMiArHvWZqnYLdZMBrA7Gi1cGw6QUO7BIrHim3HxrPnU6jJNp1dw2Ur5 MM0Q== X-Gm-Message-State: APjAAAXInYyIRESsHXao6DTiyl8HLYbtHQMz2AOlOpc7lJqMO2SNTxni OQ25S689k8bLKcR180Xuo5rcbg== X-Google-Smtp-Source: APXvYqwYrMUv22o8QtZJHQxG4oSCOtehemcl4VrfqOdRaxZdRTf/JyTGWfmUwepbFJQPUttZYQitFg== X-Received: by 2002:a17:90a:3244:: with SMTP id k62mr27867920pjb.43.1578986177409; Mon, 13 Jan 2020 23:16:17 -0800 (PST) Received: from drinkcat2.tpe.corp.google.com ([2401:fa00:1:b:d8b7:33af:adcb:b648]) by smtp.gmail.com with ESMTPSA id b4sm17092976pfd.18.2020.01.13.23.16.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jan 2020 23:16:16 -0800 (PST) From: Nicolas Boichat To: Rob Herring Subject: [PATCH v3 3/7] drm/panfrost: Improve error reporting in panfrost_gpu_power_on Date: Tue, 14 Jan 2020 15:15:58 +0800 Message-Id: <20200114071602.47627-4-drinkcat@chromium.org> X-Mailer: git-send-email 2.25.0.rc1.283.g88dfdc4193-goog In-Reply-To: <20200114071602.47627-1-drinkcat@chromium.org> References: <20200114071602.47627-1-drinkcat@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200113_231618_437399_10D95F85 X-CRM114-Status: UNSURE ( 9.12 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:644 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Tomeu Vizoso , David Airlie , linux-kernel@vger.kernel.org, Liam Girdwood , dri-devel@lists.freedesktop.org, Steven Price , Mark Brown , linux-mediatek@lists.infradead.org, Alyssa Rosenzweig , Daniel Vetter , hsinyi@chromium.org, Matthias Brugger , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org It is useful to know which component cannot be powered on. Signed-off-by: Nicolas Boichat Reviewed-by: Steven Price Reviewed-by: Alyssa Rosenzweig --- Was useful when trying to probe Bifrost GPU, to understand what issue we are facing. v3: - Rebased on https://patchwork.kernel.org/patch/11325689/ drivers/gpu/drm/panfrost/panfrost_gpu.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c index 460fc190de6e815..856f2fd1fa8ed27 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c @@ -308,17 +308,20 @@ void panfrost_gpu_power_on(struct panfrost_device *pfdev) gpu_write(pfdev, L2_PWRON_LO, pfdev->features.l2_present); ret = readl_relaxed_poll_timeout(pfdev->iomem + L2_READY_LO, val, val == pfdev->features.l2_present, 100, 1000); + if (ret) + dev_err(pfdev->dev, "error powering up gpu L2"); gpu_write(pfdev, SHADER_PWRON_LO, pfdev->features.shader_present); - ret |= readl_relaxed_poll_timeout(pfdev->iomem + SHADER_READY_LO, + ret = readl_relaxed_poll_timeout(pfdev->iomem + SHADER_READY_LO, val, val == pfdev->features.shader_present, 100, 1000); + if (ret) + dev_err(pfdev->dev, "error powering up gpu shader"); gpu_write(pfdev, TILER_PWRON_LO, pfdev->features.tiler_present); - ret |= readl_relaxed_poll_timeout(pfdev->iomem + TILER_READY_LO, + ret = readl_relaxed_poll_timeout(pfdev->iomem + TILER_READY_LO, val, val == pfdev->features.tiler_present, 100, 1000); - if (ret) - dev_err(pfdev->dev, "error powering up gpu"); + dev_err(pfdev->dev, "error powering up gpu tiler"); } void panfrost_gpu_power_off(struct panfrost_device *pfdev)