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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 unsigned long last_shrink_freed;
112
113static int
114shrink_get(void *data, u64 *val)
115{
116 *val = last_shrink_freed;
117
118 return 0;
119}
120
121static int
122shrink_set(void *data, u64 val)
123{
124 struct drm_device *dev = data;
125
126 last_shrink_freed = msm_gem_shrinker_shrink(dev, val);
127
128 return 0;
129}
130
131DEFINE_SIMPLE_ATTRIBUTE(shrink_fops,
132 shrink_get, shrink_set,
133 "0x%08llx\n");
134
135
136static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
137{
138 struct msm_drm_private *priv = dev->dev_private;
139 int ret;
140
141 ret = mutex_lock_interruptible(&priv->obj_lock);
142 if (ret)
143 return ret;
144
145 msm_gem_describe_objects(&priv->objects, m);
146
147 mutex_unlock(&priv->obj_lock);
148
149 return 0;
150}
151
152static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
153{
154 struct drm_printer p = drm_seq_file_printer(m);
155
156 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
157
158 return 0;
159}
160
161static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
162{
163 struct msm_drm_private *priv = dev->dev_private;
164 struct drm_framebuffer *fb, *fbdev_fb = NULL;
165
166 if (priv->fbdev) {
167 seq_printf(m, "fbcon ");
168 fbdev_fb = priv->fbdev->fb;
169 msm_framebuffer_describe(fbdev_fb, m);
170 }
171
172 mutex_lock(&dev->mode_config.fb_lock);
173 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
174 if (fb == fbdev_fb)
175 continue;
176
177 seq_printf(m, "user ");
178 msm_framebuffer_describe(fb, m);
179 }
180 mutex_unlock(&dev->mode_config.fb_lock);
181
182 return 0;
183}
184
185static int show_locked(struct seq_file *m, void *arg)
186{
187 struct drm_info_node *node = (struct drm_info_node *) m->private;
188 struct drm_device *dev = node->minor->dev;
189 int (*show)(struct drm_device *dev, struct seq_file *m) =
190 node->info_ent->data;
191 int ret;
192
193 ret = mutex_lock_interruptible(&dev->struct_mutex);
194 if (ret)
195 return ret;
196
197 ret = show(dev, m);
198
199 mutex_unlock(&dev->struct_mutex);
200
201 return ret;
202}
203
204static struct drm_info_list msm_debugfs_list[] = {
205 {"gem", show_locked, 0, msm_gem_show},
206 { "mm", show_locked, 0, msm_mm_show },
207 { "fb", show_locked, 0, msm_fb_show },
208};
209
210static int late_init_minor(struct drm_minor *minor)
211{
212 int ret;
213
214 if (!minor)
215 return 0;
216
217 ret = msm_rd_debugfs_init(minor);
218 if (ret) {
219 DRM_DEV_ERROR(minor->dev->dev, "could not install rd debugfs\n");
220 return ret;
221 }
222
223 ret = msm_perf_debugfs_init(minor);
224 if (ret) {
225 DRM_DEV_ERROR(minor->dev->dev, "could not install perf debugfs\n");
226 return ret;
227 }
228
229 return 0;
230}
231
232int msm_debugfs_late_init(struct drm_device *dev)
233{
234 int ret;
235 ret = late_init_minor(dev->primary);
236 if (ret)
237 return ret;
238 ret = late_init_minor(dev->render);
239 return ret;
240}
241
242void msm_debugfs_init(struct drm_minor *minor)
243{
244 struct drm_device *dev = minor->dev;
245 struct msm_drm_private *priv = dev->dev_private;
246
247 drm_debugfs_create_files(msm_debugfs_list,
248 ARRAY_SIZE(msm_debugfs_list),
249 minor->debugfs_root, minor);
250
251 debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root,
252 dev, &msm_gpu_fops);
253
254 debugfs_create_u32("hangcheck_period_ms", 0600, minor->debugfs_root,
255 &priv->hangcheck_period);
256
257 debugfs_create_file("shrink", S_IRWXU, minor->debugfs_root,
258 dev, &shrink_fops);
259
260 if (priv->kms && priv->kms->funcs->debugfs_init)
261 priv->kms->funcs->debugfs_init(priv->kms, minor);
262}
263#endif
264
265
