From patchwork Wed Oct 26 23:25:52 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Navare, Manasi" X-Patchwork-Id: 9398791 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 0518860234 for ; Thu, 27 Oct 2016 00:55:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C352429E60 for ; Thu, 27 Oct 2016 00:55:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B803C29E62; Thu, 27 Oct 2016 00:55:51 +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 7A14929E60 for ; Thu, 27 Oct 2016 00:55:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8F3E26E98A; Thu, 27 Oct 2016 00:55:14 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5CF456E962; Wed, 26 Oct 2016 23:25:50 +0000 (UTC) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP; 26 Oct 2016 16:25:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,551,1473145200"; d="scan'208";a="894421038" Received: from manasi-otcmedia.jf.intel.com ([10.7.199.175]) by orsmga003.jf.intel.com with ESMTP; 26 Oct 2016 16:25:49 -0700 From: Manasi Navare To: intel-gfx@lists.freedesktop.org Subject: [PATCH 1/7] drm: Define a work struct for scheduling a uevent for modeset retry Date: Wed, 26 Oct 2016 16:25:52 -0700 Message-Id: <1477524358-16563-1-git-send-email-manasi.d.navare@intel.com> X-Mailer: git-send-email 1.9.1 X-Mailman-Approved-At: Thu, 27 Oct 2016 00:55:07 +0000 Cc: Manasi Navare , Daniel Vetter , dri-devel@lists.freedesktop.org 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. v2: * Create a generic work func not i915 specific (Daniel Vetter) 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 ac9d7d8..fc9d475 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -682,6 +682,11 @@ struct drm_connector { uint8_t num_h_tile, num_v_tile; uint8_t tile_h_loc, tile_v_loc; uint16_t tile_h_size, tile_v_size; + + /* Work struct to schedule a uevent on link train failure for + * DisplayPort. + */ + struct work_struct modeset_retry_work; }; #define obj_to_connector(x) container_of(x, struct drm_connector, base)