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6
7#ifdef CONFIG_DEBUG_FS
8
9#include <linux/debugfs.h>
10
11#include <drm/drm_debugfs.h>
12#include <drm/drm_file.h>
13
14#include "msm_drv.h"
15#include "msm_gpu.h"
16#include "msm_kms.h"
17#include "msm_debugfs.h"
18
19struct msm_gpu_show_priv {
20 struct msm_gpu_state *state;
21 struct drm_device *dev;
22};
23
24static int msm_gpu_show(struct seq_file *m, void *arg)
25{
26 struct drm_printer p = drm_seq_file_printer(m);
27 struct msm_gpu_show_priv *show_priv = m->private;
28 struct msm_drm_private *priv = show_priv->dev->dev_private;
29 struct msm_gpu *gpu = priv->gpu;
30 int ret;
31
32 ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex);
33 if (ret)
34 return ret;
35
36 drm_printf(&p, "%s Status:\n", gpu->name);
37 gpu->funcs->show(gpu, show_priv->state, &p);
38
39 mutex_unlock(&show_priv->dev->struct_mutex);
40
41 return 0;
42}
43
44static int msm_gpu_release(struct inode *inode, struct file *file)
45{
46 struct seq_file *m = file->private_data;
47 struct msm_gpu_show_priv *show_priv = m->private;
48 struct msm_drm_private *priv = show_priv->dev->dev_private;
49 struct msm_gpu *gpu = priv->gpu;
50
51 mutex_lock(&show_priv->dev->struct_mutex);
52 gpu->funcs->gpu_state_put(show_priv->state);
53 mutex_unlock(&show_priv->dev->struct_mutex);
54
55 kfree(show_priv);
56
57 return single_release(inode, file);
58}
59
60static int msm_gpu_open(struct inode *inode, struct file *file)
61{
62 struct drm_device *dev = inode->i_private;
63 struct msm_drm_private *priv = dev->dev_private;
64 struct msm_gpu *gpu = priv->gpu;
65 struct msm_gpu_show_priv *show_priv;
66 int ret;
67
68 if (!gpu || !gpu->funcs->gpu_state_get)
69 return -ENODEV;
70
71 show_priv = kmalloc(sizeof(*show_priv), GFP_KERNEL);
72 if (!show_priv)
73 return -ENOMEM;
74
75 ret = mutex_lock_interruptible(&dev->struct_mutex);
76 if (ret)
77 goto free_priv;
78
79 pm_runtime_get_sync(&gpu->pdev->dev);
80 show_priv->state = gpu->funcs->gpu_state_get(gpu);
81 pm_runtime_put_sync(&gpu->pdev->dev);
82
83 mutex_unlock(&dev->struct_mutex);
84
85 if (IS_ERR(show_priv->state)) {
86 ret = PTR_ERR(show_priv->state);
87 goto free_priv;
88 }
89
90 show_priv->dev = dev;
91
92 ret = single_open(file, msm_gpu_show, show_priv);
93 if (ret)
94 goto free_priv;
95
96 return 0;
97
98free_priv:
99 kfree(show_priv);
100 return ret;
101}
102
103static const struct file_operations msm_gpu_fops = {
104 .owner = THIS_MODULE,
105 .open = msm_gpu_open,
106 .read = seq_read,
107 .llseek = seq_lseek,
108 .release = msm_gpu_release,
109};
110
111static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
112{
113 struct msm_drm_private *priv = dev->dev_private;
114 struct msm_gpu *gpu = priv->gpu;
115 int ret;
116
117 ret = mutex_lock_interruptible(&priv->mm_lock);
118 if (ret)
119 return ret;
120
121 if (gpu) {
122 seq_printf(m, "Active Objects (%s):\n", gpu->name);
123 msm_gem_describe_objects(&gpu->active_list, m);
124 }
125
126 seq_printf(m, "Inactive Objects:\n");
127 msm_gem_describe_objects(&priv->inactive_dontneed, m);
128 msm_gem_describe_objects(&priv->inactive_willneed, m);
129
130 mutex_unlock(&priv->mm_lock);
131
132 return 0;
133}
134
135static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
136{
137 struct drm_printer p = drm_seq_file_printer(m);
138
139 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
140
141 return 0;
142}
143
144static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
145{
146 struct msm_drm_private *priv = dev->dev_private;
147 struct drm_framebuffer *fb, *fbdev_fb = NULL;
148
149 if (priv->fbdev) {
150 seq_printf(m, "fbcon ");
151 fbdev_fb = priv->fbdev->fb;
152 msm_framebuffer_describe(fbdev_fb, m);
153 }
154
155 mutex_lock(&dev->mode_config.fb_lock);
156 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
157 if (fb == fbdev_fb)
158 continue;
159
160 seq_printf(m, "user ");
161 msm_framebuffer_describe(fb, m);
162 }
163 mutex_unlock(&dev->mode_config.fb_lock);
164
165 return 0;
166}
167
168static int show_locked(struct seq_file *m, void *arg)
169{
170 struct drm_info_node *node = (struct drm_info_node *) m->private;
171 struct drm_device *dev = node->minor->dev;
172 int (*show)(struct drm_device *dev, struct seq_file *m) =
173 node->info_ent->data;
174 int ret;
175
176 ret = mutex_lock_interruptible(&dev->struct_mutex);
177 if (ret)
178 return ret;
179
180 ret = show(dev, m);
181
182 mutex_unlock(&dev->struct_mutex);
183
184 return ret;
185}
186
187static struct drm_info_list msm_debugfs_list[] = {
188 {"gem", show_locked, 0, msm_gem_show},
189 { "mm", show_locked, 0, msm_mm_show },
190 { "fb", show_locked, 0, msm_fb_show },
191};
192
193static int late_init_minor(struct drm_minor *minor)
194{
195 int ret;
196
197 if (!minor)
198 return 0;
199
200 ret = msm_rd_debugfs_init(minor);
201 if (ret) {
202 DRM_DEV_ERROR(minor->dev->dev, "could not install rd debugfs\n");
203 return ret;
204 }
205
206 ret = msm_perf_debugfs_init(minor);
207 if (ret) {
208 DRM_DEV_ERROR(minor->dev->dev, "could not install perf debugfs\n");
209 return ret;
210 }
211
212 return 0;
213}
214
215int msm_debugfs_late_init(struct drm_device *dev)
216{
217 int ret;
218 ret = late_init_minor(dev->primary);
219 if (ret)
220 return ret;
221 ret = late_init_minor(dev->render);
222 return ret;
223}
224
225void msm_debugfs_init(struct drm_minor *minor)
226{
227 struct drm_device *dev = minor->dev;
228 struct msm_drm_private *priv = dev->dev_private;
229
230 drm_debugfs_create_files(msm_debugfs_list,
231 ARRAY_SIZE(msm_debugfs_list),
232 minor->debugfs_root, minor);
233
234 debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root,
235 dev, &msm_gpu_fops);
236
237 if (priv->kms && priv->kms->funcs->debugfs_init)
238 priv->kms->funcs->debugfs_init(priv->kms, minor);
239}
240#endif
241
242
