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