From patchwork Mon Mar 2 19:13:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Guido_G=C3=BCnther?= X-Patchwork-Id: 11416189 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 4A0DE14B4 for ; Mon, 2 Mar 2020 19:13:56 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 3231120842 for ; Mon, 2 Mar 2020 19:13:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3231120842 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sigxcpu.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BA0006E804; Mon, 2 Mar 2020 19:13:45 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from honk.sigxcpu.org (honk.sigxcpu.org [24.134.29.49]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3C0766E7EA; Mon, 2 Mar 2020 19:13:44 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by honk.sigxcpu.org (Postfix) with ESMTP id ED0D5FB04; Mon, 2 Mar 2020 20:13:42 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at honk.sigxcpu.org Received: from honk.sigxcpu.org ([127.0.0.1]) by localhost (honk.sigxcpu.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OoMrX3WfUypl; Mon, 2 Mar 2020 20:13:41 +0100 (CET) Received: by bogon.sigxcpu.org (Postfix, from userid 1000) id B2AE54048F; Mon, 2 Mar 2020 20:13:36 +0100 (CET) From: =?utf-8?q?Guido_G=C3=BCnther?= To: Lucas Stach , Russell King , Christian Gmeiner , David Airlie , Daniel Vetter , etnaviv@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 5/5] drm/etnaviv: Warn when GPU doesn't idle fast enough Date: Mon, 2 Mar 2020 20:13:36 +0100 Message-Id: X-Mailer: git-send-email 2.23.0 In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" If the GPU isn't idle after signalling pm_runtime_mark_last_busy() plus waiting for the autosuspend delay there's likely something wrong with the way we check idleness so warn about that. Signed-off-by: Guido Günther --- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index da24e433f82a..4fd16b8f8a7a 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1824,8 +1824,11 @@ static int etnaviv_gpu_rpm_suspend(struct device *dev) mask = gpu->idle_mask & ~(VIVS_HI_IDLE_STATE_FE | VIVS_HI_IDLE_STATE_MC); idle = gpu_read(gpu, VIVS_HI_IDLE_STATE) & mask; - if (idle != mask) + if (idle != mask) { + dev_warn_ratelimited(dev, "GPU not yet idle, mask: 0x%08x\n", + idle); return -EBUSY; + } return etnaviv_gpu_hw_suspend(gpu); }