From patchwork Thu Jan 21 19:37:47 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gordon X-Patchwork-Id: 8084651 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D6313BEEE5 for ; Thu, 21 Jan 2016 19:38:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1A0F920394 for ; Thu, 21 Jan 2016 19:38:09 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 3122E20320 for ; Thu, 21 Jan 2016 19:38:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 675596EB4B; Thu, 21 Jan 2016 11:38:06 -0800 (PST) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id E4B6B6EB53 for ; Thu, 21 Jan 2016 11:37:56 -0800 (PST) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP; 21 Jan 2016 11:37:57 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,326,1449561600"; d="scan'208";a="638001008" Received: from dsgordon-linux2.isw.intel.com ([10.102.226.88]) by FMSMGA003.fm.intel.com with ESMTP; 21 Jan 2016 11:37:55 -0800 From: Dave Gordon To: intel-gfx@lists.freedesktop.org Date: Thu, 21 Jan 2016 19:37:47 +0000 Message-Id: <1453405067-32890-5-git-send-email-david.s.gordon@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1453405067-32890-1-git-send-email-david.s.gordon@intel.com> References: <1453405067-32890-1-git-send-email-david.s.gordon@intel.com> Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [PATCH 4/4] drm/i915: tidy up initialisation failure paths (GEM & LRC) X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 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=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 1. add call to i915_gem_context_fini() to deallocate the default context(s) if the call to init_rings() fails, so that we don't leak the context in that situation. 2. remove useless code in intel_logical_ring_cleanup(), presumably copypasted from legacy ringbuffer version at creation. Signed-off-by: Dave Gordon --- drivers/gpu/drm/i915/i915_gem.c | 5 ++++- drivers/gpu/drm/i915/intel_lrc.c | 10 ++-------- 2 files changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 799a53a..041e0e1 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4986,8 +4986,11 @@ int i915_gem_init(struct drm_device *dev) goto out_unlock; ret = dev_priv->gt.init_rings(dev); - if (ret) + if (ret) { + i915_gem_context_fini(dev); + /* XXX: anything else to be undone here? */ goto out_unlock; + } ret = i915_gem_init_hw(dev); if (ret == -EIO) { diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 3914120..c9b0917 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1972,17 +1972,11 @@ static int gen8_init_rcs_context(struct drm_i915_gem_request *req) */ void intel_logical_ring_cleanup(struct intel_engine_cs *ring) { - struct drm_i915_private *dev_priv; - if (!intel_ring_initialized(ring)) return; - dev_priv = ring->dev->dev_private; - - if (ring->buffer) { - intel_logical_ring_stop(ring); - WARN_ON((I915_READ_MODE(ring) & MODE_IDLE) == 0); - } + /* should not be set in LRC mode */ + WARN_ON(ring->buffer); if (ring->cleanup) ring->cleanup(ring);