From patchwork Wed Oct 1 15:11:30 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 5013321 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C65F69F32B for ; Wed, 1 Oct 2014 16:39:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 07D4E20263 for ; Wed, 1 Oct 2014 16:39:36 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 106F420260 for ; Wed, 1 Oct 2014 16:39:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C99F46E2DE; Wed, 1 Oct 2014 09:39:29 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-wg0-f43.google.com (mail-wg0-f43.google.com [74.125.82.43]) by gabe.freedesktop.org (Postfix) with ESMTP id DB0676E2AD for ; Wed, 1 Oct 2014 09:39:27 -0700 (PDT) Received: by mail-wg0-f43.google.com with SMTP id k14so1112347wgh.2 for ; Wed, 01 Oct 2014 09:39:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id; bh=tIs148ICxOjQtAFqur+JCEqBs7Eszc5rLA3KoIs1XF0=; b=XzkJyHKyLKVbS2ZuuNd1w5l+tTZ4HikIoPfJytGlKpZ8IQcP1yL/iQaKglWfQ+FDw/ xaY1OJ5XpJjhjAIoVo3jP6iMHxyhupXBWwGfxFUSno/Kpuz5teuWTwWpsVLoLbPtVEMt MxCGHEjYi1AGzKuaqm8lU0zyXa4wlinGMuXds= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=tIs148ICxOjQtAFqur+JCEqBs7Eszc5rLA3KoIs1XF0=; b=JEFIKyx85DhXfamj5JPe/8IGT3+euNtE0DPxNUddsITFosjxX7RoB30GH0ML525jxD zsM9vbQnQ60j4hANJUsgPGSpkgHgR1GAPljlhJK6+BJdravn9FjNyMChLcOn2JBddN2A VQEV8WcTycwhfWIHcX3MUsLcU9j7j5PCuXqXpyuVsTFXuvk64qGjVQwajcA8xm2Jlbpz OgQG3Hk4U1rMuhy49jBiuCjaP/nHwFklvTVMnMHUteq/U3sAAulcmoCWesiz6liLJ5Gy Cx3L+TqWrXgP0H9KgXLd/T0+3tvKOlXIRYSOiUpYUi0tHlTM2MvQjlQQYBE3CIBnxrXR SrlA== X-Gm-Message-State: ALoCoQk+gxrcjrBgXsRebzfwB9YZkYBHBzE0Gago+HrraRgT8FMKAjPe2gKUNNISFyzq77zATr/P X-Received: by 10.194.81.101 with SMTP id z5mr64272862wjx.17.1412181566656; Wed, 01 Oct 2014 09:39:26 -0700 (PDT) Received: from wespe.ffwll.local (84-73-67-144.dclient.hispeed.ch. [84.73.67.144]) by mx.google.com with ESMTPSA id q2sm2400506wiy.23.2014.10.01.09.39.24 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 01 Oct 2014 09:39:25 -0700 (PDT) From: Daniel Vetter To: Intel Graphics Development Date: Wed, 1 Oct 2014 17:11:30 +0200 Message-Id: <1412176290-2992-1-git-send-email-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 1.9.3 Cc: Daniel Vetter , DRI Development , Daniel Vetter Subject: [Intel-gfx] [PATCH] drm/irq: Even more debug output for drm_wait_one_vblank X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We have a bit of fun with vblank waits not working correctly right away after enabling a crtc, so let's add more debug output to figure what's going on. References: https://bugs.freedesktop.org/show_bug.cgi?id=84162 Signed-off-by: Daniel Vetter --- drivers/gpu/drm/drm_irq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 5ef03c216a27..5b5c32a08a45 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -1086,7 +1086,9 @@ void drm_wait_one_vblank(struct drm_device *dev, int crtc) last != drm_vblank_count(dev, crtc), msecs_to_jiffies(100)); - WARN(ret == 0, "vblank wait timed out on crtc %i\n", crtc); + WARN(ret == 0, + "vblank wait timed out on crtc %i, last: %u, current %u\n", + crtc, last, drm_vblank_count(dev, crtc)); drm_vblank_put(dev, crtc); }