From patchwork Mon Nov 2 07:52:31 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhenyu Wang X-Patchwork-Id: 56945 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nA27qlRV012406 for ; Mon, 2 Nov 2009 07:52:47 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 248079EB39; Sun, 1 Nov 2009 23:52:46 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from azsmga102.ch.intel.com (mga12.intel.com [143.182.124.36]) by gabe.freedesktop.org (Postfix) with ESMTP id 5ECE79E7B3 for ; Sun, 1 Nov 2009 23:52:42 -0800 (PST) Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga102.ch.intel.com with ESMTP; 01 Nov 2009 23:52:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.44,665,1249282800"; d="scan'208";a="206374236" Received: from debian-i915.sh.intel.com (HELO localhost.localdomain) ([10.239.36.64]) by azsmga001.ch.intel.com with ESMTP; 01 Nov 2009 23:52:41 -0800 From: Zhenyu Wang To: eric@anholt.net Date: Mon, 2 Nov 2009 15:52:31 +0800 Message-Id: <1257148351-28657-4-git-send-email-zhenyuw@linux.intel.com> X-Mailer: git-send-email 1.6.5.2 In-Reply-To: <1257148351-28657-3-git-send-email-zhenyuw@linux.intel.com> References: <1257148351-28657-1-git-send-email-zhenyuw@linux.intel.com> <1257148351-28657-2-git-send-email-zhenyuw@linux.intel.com> <1257148351-28657-3-git-send-email-zhenyuw@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Subject: [Intel-gfx] [PATCH 3/3] drm/i915: disable MSI on Ironlake temporarily X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index bc679ff..58f7bda 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1460,8 +1460,11 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) * According to chipset errata, on the 965GM, MSI interrupts may * be lost or delayed, but we use them anyways to avoid * stuck interrupts on some machines. + * + * MSI looks unstable on Ironlake, until we find out the reason, disable + * it for now. */ - if (!IS_I945G(dev) && !IS_I945GM(dev)) + if (!IS_I945G(dev) && !IS_I945GM(dev) && !IS_IGDNG(dev)) pci_enable_msi(dev->pdev); spin_lock_init(&dev_priv->user_irq_lock);