From patchwork Wed Oct 19 21:46:18 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Navare, Manasi" X-Patchwork-Id: 9385643 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D1F8960487 for ; Thu, 20 Oct 2016 00:32:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C52A42871F for ; Thu, 20 Oct 2016 00:32:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B97F829002; Thu, 20 Oct 2016 00:32:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 604CD2871F for ; Thu, 20 Oct 2016 00:32:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D325989CA0; Thu, 20 Oct 2016 00:32:35 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id B09DD6E9F2; Wed, 19 Oct 2016 21:45:24 +0000 (UTC) Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP; 19 Oct 2016 14:45:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,516,1473145200"; d="scan'208";a="21832194" Received: from manasi-otcmedia.jf.intel.com ([10.7.199.175]) by orsmga004.jf.intel.com with ESMTP; 19 Oct 2016 14:45:23 -0700 From: Manasi Navare To: intel-gfx@lists.freedesktop.org Subject: [PATCH RFC 2/8] drm: Define a work struct for scheduling a uevent for modeset retry Date: Wed, 19 Oct 2016 14:46:18 -0700 Message-Id: <1476913584-16948-3-git-send-email-manasi.d.navare@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1476913584-16948-1-git-send-email-manasi.d.navare@intel.com> References: <1476913584-16948-1-git-send-email-manasi.d.navare@intel.com> X-Mailman-Approved-At: Thu, 20 Oct 2016 00:31:33 +0000 Cc: Manasi Navare , dri-devel@lists.freedesktop.org, daniel.vetter@intel.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP This work struct will be used to schedule a uevent on a separate thread. This will be scheduled after a link train failure during modeset to indicate a modeset retry request. It will get executed after the current modeset is complete and all locks are released. This was required to avoid deadlock. Cc: dri-devel@lists.freedesktop.org Cc: Jani Nikula Cc: Daniel Vetter Cc: Ville Syrjala Signed-off-by: Manasi Navare --- include/drm/drm_connector.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index d499466..9218a24 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -687,6 +687,11 @@ struct drm_connector { * in case of link train failure during current modeset */ bool link_train_retry; + + /* Work struct to schedule a uevent on link train failure for + * DisplayPort. + */ + struct work_struct i915_modeset_retry_work; }; #define obj_to_connector(x) container_of(x, struct drm_connector, base)