drm/tegra: Add list of framebuffers to debugfs (e450fcc6) · Commits · 戴 / test

drivers/gpu/drm/tegra/drm.c

+44 −0

Original line number	Diff line number	Diff line
		@@ -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,

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