From patchwork Thu Feb 21 14:36:01 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Reding X-Patchwork-Id: 222302 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 7326D2C0084 for ; Fri, 22 Feb 2013 01:36:28 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753844Ab3BUOgZ (ORCPT ); Thu, 21 Feb 2013 09:36:25 -0500 Received: from moutng.kundenserver.de ([212.227.126.171]:60804 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753773Ab3BUOgY (ORCPT ); Thu, 21 Feb 2013 09:36:24 -0500 Received: from mailbox.adnet.avionic-design.de (mailbox.avionic-design.de [109.75.18.3]) by mrelayeu.kundenserver.de (node=mreu3) with ESMTP (Nemesis) id 0MICba-1U96Hw1AWk-003rxi; Thu, 21 Feb 2013 15:36:22 +0100 Received: from localhost (localhost [127.0.0.1]) by mailbox.adnet.avionic-design.de (Postfix) with ESMTP id 810442A28162; Thu, 21 Feb 2013 15:36:21 +0100 (CET) X-Virus-Scanned: amavisd-new at avionic-design.de Received: from mailbox.adnet.avionic-design.de ([127.0.0.1]) by localhost (mailbox.avionic-design.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id NxnY62UqUzQG; Thu, 21 Feb 2013 15:36:20 +0100 (CET) Received: from mailman.adnet.avionic-design.de (mailman.adnet.avionic-design.de [172.20.31.172]) by mailbox.adnet.avionic-design.de (Postfix) with ESMTP id D6A382A2823E; Thu, 21 Feb 2013 15:36:02 +0100 (CET) Received: from localhost (avionic-0098.adnet.avionic-design.de [172.20.31.233]) by mailman.adnet.avionic-design.de (Postfix) with ESMTP id 63F72100936; Thu, 21 Feb 2013 15:35:58 +0100 (CET) From: Thierry Reding To: Dave Airlie Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org Subject: [PATCH v4 9/9] drm/tegra: Add list of framebuffers to debugfs Date: Thu, 21 Feb 2013 15:36:01 +0100 Message-Id: <1361457361-13838-10-git-send-email-thierry.reding@avionic-design.de> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1361457361-13838-1-git-send-email-thierry.reding@avionic-design.de> References: <1361457361-13838-1-git-send-email-thierry.reding@avionic-design.de> X-Provags-ID: V02:K0:aIaW9JkbQMbWsEpBdInS6kgcw1P55wf6HObQ6wFM23Q xLexvv95ZnPWrgFE3bwABK/GISo0aEn5stiVUEt5xLDDLbFhpz zRPDIjn4qqPRxNsPpP/QPzePBhOlUOvFq6X9LKzzsQA9NCblQI D2e6YAB88qNmCLpzsDRMpL0JgbDUqYDtCGhvxsFl4sQNtV4L9b hJi1stGOTJz9TQ3r/gxFNmY6j/w0W+tJpriVyfc9H51pWucqLo uRp7C1+6XPF5ZocvyDhTgsAADFfgliGyz9q8iEpr4iWO/UqFuF Yefuryi9oTqGxPTicwbbFttYwwm6zTawZTqBzBLa6/IvqBQF2p UKfio5bcyt7Vag7NaZf1Tp0zNSHJCEZgLbD+u0kLihAue2wEL3 ce4mR2SWcFCnTqmsJMch4ZnKVGs+stpiIOEY1lRbIliW1mXEag LGymJ Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org This list is most useful to inspect whether framebuffer reference counting works as expected. The code is loosely based on the i915 implementation. Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/drm.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 97485af..181a370 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -143,6 +143,45 @@ static void tegra_drm_preclose(struct drm_device *drm, struct drm_file *file) tegra_dc_cancel_page_flip(crtc, file); } +#ifdef CONFIG_DEBUG_FS +static int tegra_debugfs_framebuffers(struct seq_file *s, void *data) +{ + struct drm_info_node *node = (struct drm_info_node *)s->private; + struct drm_device *drm = node->minor->dev; + struct drm_framebuffer *fb; + + mutex_lock(&drm->mode_config.fb_lock); + + list_for_each_entry(fb, &drm->mode_config.fb_list, head) { + seq_printf(s, "%3d: user size: %d x %d, depth %d, %d bpp, refcount %d\n", + fb->base.id, fb->width, fb->height, fb->depth, + fb->bits_per_pixel, + atomic_read(&fb->refcount.refcount)); + } + + mutex_unlock(&drm->mode_config.fb_lock); + + return 0; +} + +static struct drm_info_list tegra_debugfs_list[] = { + { "framebuffers", tegra_debugfs_framebuffers, 0 }, +}; + +static int tegra_debugfs_init(struct drm_minor *minor) +{ + return drm_debugfs_create_files(tegra_debugfs_list, + ARRAY_SIZE(tegra_debugfs_list), + minor->debugfs_root, minor); +} + +static void tegra_debugfs_cleanup(struct drm_minor *minor) +{ + drm_debugfs_remove_files(tegra_debugfs_list, + ARRAY_SIZE(tegra_debugfs_list), minor); +} +#endif + struct drm_driver tegra_drm_driver = { .driver_features = DRIVER_BUS_PLATFORM | DRIVER_MODESET | DRIVER_GEM, .load = tegra_drm_load, @@ -155,6 +194,11 @@ struct drm_driver tegra_drm_driver = { .enable_vblank = tegra_drm_enable_vblank, .disable_vblank = tegra_drm_disable_vblank, +#if defined(CONFIG_DEBUG_FS) + .debugfs_init = tegra_debugfs_init, + .debugfs_cleanup = tegra_debugfs_cleanup, +#endif + .gem_free_object = drm_gem_cma_free_object, .gem_vm_ops = &drm_gem_cma_vm_ops, .dumb_create = drm_gem_cma_dumb_create,