Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
4 * Author: Rob Clark <rob.clark@linaro.org>
5 */
6
7#include <linux/seq_file.h>
8
9#include <drm/drm_crtc.h>
10#include <drm/drm_debugfs.h>
11#include <drm/drm_file.h>
12#include <drm/drm_fb_helper.h>
13
14#include "omap_drv.h"
15#include "omap_dmm_tiler.h"
16
17#ifdef CONFIG_DEBUG_FS
18
19static int gem_show(struct seq_file *m, void *arg)
20{
21 struct drm_info_node *node = (struct drm_info_node *) m->private;
22 struct drm_device *dev = node->minor->dev;
23 struct omap_drm_private *priv = dev->dev_private;
24
25 seq_printf(m, "All Objects:\n");
26 mutex_lock(&priv->list_lock);
27 omap_gem_describe_objects(&priv->obj_list, m);
28 mutex_unlock(&priv->list_lock);
29
30 return 0;
31}
32
33static int mm_show(struct seq_file *m, void *arg)
34{
35 struct drm_info_node *node = (struct drm_info_node *) m->private;
36 struct drm_device *dev = node->minor->dev;
37 struct drm_printer p = drm_seq_file_printer(m);
38
39 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
40
41 return 0;
42}
43
44#ifdef CONFIG_DRM_FBDEV_EMULATION
45static int fb_show(struct seq_file *m, void *arg)
46{
47 struct drm_info_node *node = (struct drm_info_node *) m->private;
48 struct drm_device *dev = node->minor->dev;
49 struct omap_drm_private *priv = dev->dev_private;
50 struct drm_framebuffer *fb;
51
52 seq_printf(m, "fbcon ");
53 omap_framebuffer_describe(priv->fbdev->fb, m);
54
55 mutex_lock(&dev->mode_config.fb_lock);
56 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
57 if (fb == priv->fbdev->fb)
58 continue;
59
60 seq_printf(m, "user ");
61 omap_framebuffer_describe(fb, m);
62 }
63 mutex_unlock(&dev->mode_config.fb_lock);
64
65 return 0;
66}
67#endif
68
69/* list of debufs files that are applicable to all devices */
70static struct drm_info_list omap_debugfs_list[] = {
71 {"gem", gem_show, 0},
72 {"mm", mm_show, 0},
73#ifdef CONFIG_DRM_FBDEV_EMULATION
74 {"fb", fb_show, 0},
75#endif
76};
77
78/* list of debugfs files that are specific to devices with dmm/tiler */
79static struct drm_info_list omap_dmm_debugfs_list[] = {
80 {"tiler_map", tiler_map_show, 0},
81};
82
83int omap_debugfs_init(struct drm_minor *minor)
84{
85 struct drm_device *dev = minor->dev;
86 int ret;
87
88 ret = drm_debugfs_create_files(omap_debugfs_list,
89 ARRAY_SIZE(omap_debugfs_list),
90 minor->debugfs_root, minor);
91
92 if (ret) {
93 dev_err(dev->dev, "could not install omap_debugfs_list\n");
94 return ret;
95 }
96
97 if (dmm_is_available())
98 ret = drm_debugfs_create_files(omap_dmm_debugfs_list,
99 ARRAY_SIZE(omap_dmm_debugfs_list),
100 minor->debugfs_root, minor);
101
102 if (ret) {
103 dev_err(dev->dev, "could not install omap_dmm_debugfs_list\n");
104 return ret;
105 }
106
107 return ret;
108}
109
110#endif