From patchwork Wed Feb 13 16:05:06 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Reding X-Patchwork-Id: 220192 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 2B0CC2C0294 for ; Thu, 14 Feb 2013 03:05:21 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934186Ab3BMQFU (ORCPT ); Wed, 13 Feb 2013 11:05:20 -0500 Received: from moutng.kundenserver.de ([212.227.126.171]:62310 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759877Ab3BMQFT (ORCPT ); Wed, 13 Feb 2013 11:05:19 -0500 Received: from mailbox.adnet.avionic-design.de (mailbox.avionic-design.de [109.75.18.3]) by mrelayeu.kundenserver.de (node=mreu2) with ESMTP (Nemesis) id 0LrXNx-1V3ln42Vtl-013tYl; Wed, 13 Feb 2013 17:05:15 +0100 Received: from localhost (localhost [127.0.0.1]) by mailbox.adnet.avionic-design.de (Postfix) with ESMTP id E8E7128B029D; Wed, 13 Feb 2013 17:05:14 +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 H2OYnTbNIvTt; Wed, 13 Feb 2013 17:05:13 +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 16BBA28B02A6; Wed, 13 Feb 2013 17:05:07 +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 13DA0100894; Wed, 13 Feb 2013 17:05:04 +0100 (CET) From: Thierry Reding To: Dave Airlie Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org Subject: [PATCH v3 7/7] drm/tegra: Add list of framebuffers to debugfs Date: Wed, 13 Feb 2013 17:05:06 +0100 Message-Id: <1360771506-17849-8-git-send-email-thierry.reding@avionic-design.de> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1360771506-17849-1-git-send-email-thierry.reding@avionic-design.de> References: <1360771506-17849-1-git-send-email-thierry.reding@avionic-design.de> X-Provags-ID: V02:K0:sPx5MJguj8zjvpbmd7zmWKtJM8V3eLoQpE+ShdXjeeV 2Ph++GAOr6+4vAeqLff8gpdbWCgMT0uWI6Utx0GZuADxdFB5Gd GoYjOYXO/X4a4ccCvkA8i1ytTtH1Z3fGJbzUVPlCWPnfPZlDVk T3fAu4eUueAE9Ve+M2h4DNk0BCTp1RLGFKxC1/4he62ZLo811c EyH04DHHa0fT/PPdewofe5yoBVkCVlRjb742pu20x3P2eC/yNQ 59VGEAMAjLGdlNWTj1NBDxmEqfZxuTCa2dW/LftAv1v19AzTDL u3FxuIYbbofI6p7s5SIkSIJxYf/IKgmGAD57NrDcYiZ4gwIahK HwCFMGiWIi1GODzyM5bqzQCJqx5mVpiOyT0opHtCdppAQv4oLg TyV0qFU/YucLVMmwAhfwIuOzNxFfzwx/2gpzcP+EZ8s1xfr1gP 5yeio 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 edaf9c0..9d452df 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -142,6 +142,45 @@ 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, @@ -154,6 +193,11 @@ 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,