1/*
  2 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
  3 * Author: Rob Clark <rob.clark@linaro.org>
  4 *
  5 * This program is free software; you can redistribute it and/or modify it
  6 * under the terms of the GNU General Public License version 2 as published by
  7 * the Free Software Foundation.
  8 *
  9 * This program is distributed in the hope that it will be useful, but WITHOUT
 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 12 * more details.
 13 *
 14 * You should have received a copy of the GNU General Public License along with
 15 * this program.  If not, see <http://www.gnu.org/licenses/>.
 16 */
 17
 18#include <linux/seq_file.h>
 19
 20#include <drm/drm_crtc.h>
 21#include <drm/drm_fb_helper.h>
 22
 23#include "omap_drv.h"
 24#include "omap_dmm_tiler.h"
 25
 26#ifdef CONFIG_DEBUG_FS
 27
 28static int gem_show(struct seq_file *m, void *arg)
 29{
 30	struct drm_info_node *node = (struct drm_info_node *) m->private;
 31	struct drm_device *dev = node->minor->dev;
 32	struct omap_drm_private *priv = dev->dev_private;
 33	int ret;
 34
 35	ret = mutex_lock_interruptible(&dev->struct_mutex);
 36	if (ret)
 37		return ret;
 38
 39	seq_printf(m, "All Objects:\n");
 40	omap_gem_describe_objects(&priv->obj_list, m);
 41
 42	mutex_unlock(&dev->struct_mutex);
 43
 44	return 0;
 45}
 46
 47static int mm_show(struct seq_file *m, void *arg)
 48{
 49	struct drm_info_node *node = (struct drm_info_node *) m->private;
 50	struct drm_device *dev = node->minor->dev;
 51	struct drm_printer p = drm_seq_file_printer(m);
 52
 53	drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
 54
 55	return 0;
 56}
 57
 58#ifdef CONFIG_DRM_FBDEV_EMULATION
 59static int fb_show(struct seq_file *m, void *arg)
 60{
 61	struct drm_info_node *node = (struct drm_info_node *) m->private;
 62	struct drm_device *dev = node->minor->dev;
 63	struct omap_drm_private *priv = dev->dev_private;
 64	struct drm_framebuffer *fb;
 65
 66	seq_printf(m, "fbcon ");
 67	omap_framebuffer_describe(priv->fbdev->fb, m);
 68
 69	mutex_lock(&dev->mode_config.fb_lock);
 70	list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
 71		if (fb == priv->fbdev->fb)
 72			continue;
 73
 74		seq_printf(m, "user ");
 75		omap_framebuffer_describe(fb, m);
 76	}
 77	mutex_unlock(&dev->mode_config.fb_lock);
 78
 79	return 0;
 80}
 81#endif
 82
 83/* list of debufs files that are applicable to all devices */
 84static struct drm_info_list omap_debugfs_list[] = {
 85	{"gem", gem_show, 0},
 86	{"mm", mm_show, 0},
 87#ifdef CONFIG_DRM_FBDEV_EMULATION
 88	{"fb", fb_show, 0},
 89#endif
 90};
 91
 92/* list of debugfs files that are specific to devices with dmm/tiler */
 93static struct drm_info_list omap_dmm_debugfs_list[] = {
 94	{"tiler_map", tiler_map_show, 0},
 95};
 96
 97int omap_debugfs_init(struct drm_minor *minor)
 98{
 99	struct drm_device *dev = minor->dev;
100	int ret;
101
102	ret = drm_debugfs_create_files(omap_debugfs_list,
103			ARRAY_SIZE(omap_debugfs_list),
104			minor->debugfs_root, minor);
105
106	if (ret) {
107		dev_err(dev->dev, "could not install omap_debugfs_list\n");
108		return ret;
109	}
110
111	if (dmm_is_available())
112		ret = drm_debugfs_create_files(omap_dmm_debugfs_list,
113				ARRAY_SIZE(omap_dmm_debugfs_list),
114				minor->debugfs_root, minor);
115
116	if (ret) {
117		dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n");
118		return ret;
119	}
120
121	return ret;
122}
123
124#endif