From patchwork Fri Aug 22 03:11:51 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 4760801 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 [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 478EAC033D for ; Fri, 22 Aug 2014 03:13:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8880220155 for ; Fri, 22 Aug 2014 03:13:38 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id A179A20173 for ; Fri, 22 Aug 2014 03:13:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CAA4A6E874; Thu, 21 Aug 2014 20:13:33 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id C012A6E85A for ; Thu, 21 Aug 2014 20:13:24 -0700 (PDT) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP; 21 Aug 2014 20:05:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="375575886" Received: from unknown (HELO ironside.intel.com) ([10.255.12.192]) by FMSMGA003.fm.intel.com with ESMTP; 21 Aug 2014 20:09:24 -0700 From: Ben Widawsky To: Intel GFX Date: Thu, 21 Aug 2014 20:11:51 -0700 Message-Id: <1408677155-1840-29-git-send-email-benjamin.widawsky@intel.com> X-Mailer: git-send-email 2.0.4 In-Reply-To: <1408677155-1840-1-git-send-email-benjamin.widawsky@intel.com> References: <1408677155-1840-1-git-send-email-benjamin.widawsky@intel.com> Cc: Ben Widawsky , Ben Widawsky Subject: [Intel-gfx] [PATCH 28/68] drm/i915: clean up PPGTT init error path 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=-4.9 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 The old code (I'm having trouble finding the commit) had a reason for doing things when there was an error, and would continue on, thus the !ret. For the newer code however, this looks completely silly. Follow the normal idiom of if (ret) return ret. Also, put the pde wiring in the gen specific init, now that GEN8 exists. Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_gem_gtt.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 46140e8..151ec39 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -1174,6 +1174,8 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) ppgtt->pd_offset = ppgtt->node.start / PAGE_SIZE * sizeof(gen6_gtt_pte_t); + gen6_write_pdes(ppgtt); + ppgtt->base.clear_range(&ppgtt->base, 0, ppgtt->base.total, true); DRM_DEBUG_DRIVER("Allocated pde space (%ldM) at GTT entry: %lx\n", @@ -1198,20 +1200,14 @@ int i915_gem_init_ppgtt(struct drm_device *dev, struct i915_hw_ppgtt *ppgtt) else BUG(); - if (!ret) { - struct drm_i915_private *dev_priv = dev->dev_private; - kref_init(&ppgtt->ref); - drm_mm_init(&ppgtt->base.mm, ppgtt->base.start, - ppgtt->base.total); - i915_init_vm(dev_priv, &ppgtt->base); - if (INTEL_INFO(dev)->gen < 8) { - gen6_write_pdes(ppgtt); - DRM_DEBUG("Adding PPGTT at offset %x\n", - ppgtt->pd_offset << 10); - } - } + if (ret) + return ret; - return ret; + kref_init(&ppgtt->ref); + drm_mm_init(&ppgtt->base.mm, ppgtt->base.start, ppgtt->base.total); + i915_init_vm(dev_priv, &ppgtt->base); + + return 0; } static void