From patchwork Tue Dec 9 16:04:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Kuoppala X-Patchwork-Id: 5463811 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 8CA93BEEA8 for ; Tue, 9 Dec 2014 16:03:34 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C0FBF2015E for ; Tue, 9 Dec 2014 16:03:33 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id E1DE82015A for ; Tue, 9 Dec 2014 16:03:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 49D8E6EC95; Tue, 9 Dec 2014 08:03:32 -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 7261E6EC95 for ; Tue, 9 Dec 2014 08:03:31 -0800 (PST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 09 Dec 2014 08:01:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,545,1413270000"; d="scan'208";a="651005520" Received: from rosetta.fi.intel.com (HELO rosetta) ([10.237.72.102]) by orsmga002.jf.intel.com with ESMTP; 09 Dec 2014 08:01:04 -0800 Received: by rosetta (Postfix, from userid 1000) id 83DD880052; Tue, 9 Dec 2014 18:04:38 +0200 (EET) From: Mika Kuoppala To: intel-gfx@lists.freedesktop.org Date: Tue, 9 Dec 2014 18:04:31 +0200 Message-Id: <1418141074-10214-1-git-send-email-mika.kuoppala@intel.com> X-Mailer: git-send-email 1.9.1 Cc: miku@iki.fi Subject: [Intel-gfx] [PATCH 1/4] drm/i915: Add gpu hw state capture helper 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, T_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 In the following commits, we want to capture the hw state also without any errors. Carve out the helper out from error capture parts. Signed-off-by: Mika Kuoppala --- drivers/gpu/drm/i915/i915_gpu_error.c | 41 +++++++++++++++++++++++------------ 1 file changed, 27 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index c4536e1..dcea1fa 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -1265,28 +1265,17 @@ static void i915_capture_gen_state(struct drm_i915_private *dev_priv, error->suspend_count = dev_priv->suspend_count; } -/** - * i915_capture_error_state - capture an error record for later analysis - * @dev: drm device - * - * Should be called when an error is detected (either a hang or an error - * interrupt) to capture error state from the time of the error. Fills - * out a structure which becomes available in debugfs for user level tools - * to pick up. - */ -void i915_capture_error_state(struct drm_device *dev, bool wedged, - const char *error_msg) +static struct drm_i915_error_state * +__i915_capture_gpu_state(struct drm_device *dev) { - static bool warned; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_error_state *error; - unsigned long flags; /* Account for pipe specific data like PIPE*STAT */ error = kzalloc(sizeof(*error), GFP_ATOMIC); if (!error) { DRM_DEBUG_DRIVER("out of memory, not capturing error state\n"); - return; + return NULL; } kref_init(&error->ref); @@ -1302,6 +1291,30 @@ void i915_capture_error_state(struct drm_device *dev, bool wedged, error->overlay = intel_overlay_capture_error_state(dev); error->display = intel_display_capture_error_state(dev); + return error; +} + +/** + * i915_capture_error_state - capture an error record for later analysis + * @dev: drm device + * + * Should be called when an error is detected (either a hang or an error + * interrupt) to capture error state from the time of the error. Fills + * out a structure which becomes available in debugfs for user level tools + * to pick up. + */ +void i915_capture_error_state(struct drm_device *dev, bool wedged, + const char *error_msg) +{ + static bool warned; + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_error_state *error; + unsigned long flags; + + error = __i915_capture_gpu_state(dev); + if (error == NULL) + return; + i915_error_capture_msg(dev, error, wedged, error_msg); DRM_INFO("%s\n", error->error_msg);