1/*
2 * drivers/gpu/drm/omapdrm/omap_debugfs.c
3 *
4 * Copyright (C) 2011 Texas Instruments
5 * Author: Rob Clark <rob.clark@linaro.org>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program.  If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include "omap_drv.h"
21#include "omap_dmm_tiler.h"
22
23#include "drm_fb_helper.h"
24
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	return drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm);
52}
53
54static int fb_show(struct seq_file *m, void *arg)
55{
56	struct drm_info_node *node = (struct drm_info_node *) m->private;
57	struct drm_device *dev = node->minor->dev;
58	struct omap_drm_private *priv = dev->dev_private;
59	struct drm_framebuffer *fb;
60
61	seq_printf(m, "fbcon ");
62	omap_framebuffer_describe(priv->fbdev->fb, m);
63
64	mutex_lock(&dev->mode_config.fb_lock);
65	list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
66		if (fb == priv->fbdev->fb)
67			continue;
68
69		seq_printf(m, "user ");
70		omap_framebuffer_describe(fb, m);
71	}
72	mutex_unlock(&dev->mode_config.fb_lock);
73
74	return 0;
75}
76
77/* list of debufs files that are applicable to all devices */
78static struct drm_info_list omap_debugfs_list[] = {
79	{"gem", gem_show, 0},
80	{"mm", mm_show, 0},
81	{"fb", fb_show, 0},
82};
83
84/* list of debugfs files that are specific to devices with dmm/tiler */
85static struct drm_info_list omap_dmm_debugfs_list[] = {
86	{"tiler_map", tiler_map_show, 0},
87};
88
89int omap_debugfs_init(struct drm_minor *minor)
90{
91	struct drm_device *dev = minor->dev;
92	int ret;
93
94	ret = drm_debugfs_create_files(omap_debugfs_list,
95			ARRAY_SIZE(omap_debugfs_list),
96			minor->debugfs_root, minor);
97
98	if (ret) {
99		dev_err(dev->dev, "could not install omap_debugfs_list\n");
100		return ret;
101	}
102
103	if (dmm_is_available())
104		ret = drm_debugfs_create_files(omap_dmm_debugfs_list,
105				ARRAY_SIZE(omap_dmm_debugfs_list),
106				minor->debugfs_root, minor);
107
108	if (ret) {
109		dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n");
110		return ret;
111	}
112
113	return ret;
114}
115
116void omap_debugfs_cleanup(struct drm_minor *minor)
117{
118	drm_debugfs_remove_files(omap_debugfs_list,
119			ARRAY_SIZE(omap_debugfs_list), minor);
120	if (dmm_is_available())
121		drm_debugfs_remove_files(omap_dmm_debugfs_list,
122				ARRAY_SIZE(omap_dmm_debugfs_list), minor);
123}
124
125#endif
126