From patchwork Sat May 25 19:26:38 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 2613911 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id 94B213FD4E for ; Sat, 25 May 2013 19:26:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5C443E5D0D for ; Sat, 25 May 2013 12:26:28 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from shiva.localdomain (unknown [209.20.75.48]) by gabe.freedesktop.org (Postfix) with ESMTP id BA515E5DFE for ; Sat, 25 May 2013 12:24:36 -0700 (PDT) Received: by shiva.localdomain (Postfix, from userid 1005) id F15AB88754; Sat, 25 May 2013 19:24:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on shiva.chad-versace.us X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00, URIBL_BLOCKED autolearn=unavailable version=3.3.2 Received: from lundgren.kumite (c-24-21-100-90.hsd1.or.comcast.net [24.21.100.90]) by shiva.localdomain (Postfix) with ESMTPSA id 1CA408874D; Sat, 25 May 2013 19:24:29 +0000 (UTC) From: Ben Widawsky To: Intel GFX Date: Sat, 25 May 2013 12:26:38 -0700 Message-Id: <1369510028-3343-5-git-send-email-ben@bwidawsk.net> X-Mailer: git-send-email 1.8.2.3 In-Reply-To: <1369510028-3343-1-git-send-email-ben@bwidawsk.net> References: <1369510028-3343-1-git-send-email-ben@bwidawsk.net> Cc: Ben Widawsky Subject: [Intel-gfx] [PATCH 04/34] drm/i915: context debug messages X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 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+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Add some debug messages to help figure out what goes wrong on context initialization. Later in the PPGTT series, I ended up having a lot of failures after reset. In many cases it was extra difficult to debug because I hadn't even realized that contexts failed to reinitialize after reset (again an artifact of some later patches). This fairly benign patch does help debug some potential issues which arise later. Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_gem_context.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 64cb190..39bcc08 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -156,7 +156,8 @@ create_hw_context(struct drm_device *dev, if (INTEL_INFO(dev)->gen >= 7) { ret = i915_gem_object_set_cache_level(ctx->obj, I915_CACHE_LLC_MLC); - if (ret) + /* Failure shouldn't ever happen this early */ + if (WARN_ON(ret)) goto err_out; } @@ -214,12 +215,16 @@ static int create_default_context(struct drm_i915_private *dev_priv) */ dev_priv->ring[RCS].default_context = ctx; ret = i915_gem_object_pin(ctx->obj, CONTEXT_ALIGN, false, false); - if (ret) + if (ret) { + DRM_DEBUG_DRIVER("Couldn't pin %d\n", ret); goto err_destroy; + } ret = do_switch(ctx); - if (ret) + if (ret) { + DRM_DEBUG_DRIVER("Switch failed %d\n", ret); goto err_unpin; + } DRM_DEBUG_DRIVER("Default HW context loaded\n"); return 0; @@ -237,6 +242,7 @@ void i915_gem_context_init(struct drm_device *dev) if (!HAS_HW_CONTEXTS(dev)) { dev_priv->hw_contexts_disabled = true; + DRM_DEBUG_DRIVER("Disabling HW Contexts; old hardware\n"); return; } @@ -249,11 +255,13 @@ void i915_gem_context_init(struct drm_device *dev) if (dev_priv->hw_context_size > (1<<20)) { dev_priv->hw_contexts_disabled = true; + DRM_DEBUG_DRIVER("Disabling HW Contexts; invalid size\n"); return; } if (create_default_context(dev_priv)) { dev_priv->hw_contexts_disabled = true; + DRM_DEBUG_DRIVER("Disabling HW Contexts; create failed\n"); return; }