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1/*
2 * Copyright (C) 2013-2016 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifdef CONFIG_DEBUG_FS
19#include "msm_drv.h"
20#include "msm_gpu.h"
21#include "msm_kms.h"
22#include "msm_debugfs.h"
23
24static int msm_gpu_show(struct drm_device *dev, struct seq_file *m)
25{
26 struct msm_drm_private *priv = dev->dev_private;
27 struct msm_gpu *gpu = priv->gpu;
28
29 if (gpu) {
30 seq_printf(m, "%s Status:\n", gpu->name);
31 gpu->funcs->show(gpu, m);
32 }
33
34 return 0;
35}
36
37static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
38{
39 struct msm_drm_private *priv = dev->dev_private;
40 struct msm_gpu *gpu = priv->gpu;
41
42 if (gpu) {
43 seq_printf(m, "Active Objects (%s):\n", gpu->name);
44 msm_gem_describe_objects(&gpu->active_list, m);
45 }
46
47 seq_printf(m, "Inactive Objects:\n");
48 msm_gem_describe_objects(&priv->inactive_list, m);
49
50 return 0;
51}
52
53static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
54{
55 return drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm);
56}
57
58static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
59{
60 struct msm_drm_private *priv = dev->dev_private;
61 struct drm_framebuffer *fb, *fbdev_fb = NULL;
62
63 if (priv->fbdev) {
64 seq_printf(m, "fbcon ");
65 fbdev_fb = priv->fbdev->fb;
66 msm_framebuffer_describe(fbdev_fb, m);
67 }
68
69 mutex_lock(&dev->mode_config.fb_lock);
70 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
71 if (fb == fbdev_fb)
72 continue;
73
74 seq_printf(m, "user ");
75 msm_framebuffer_describe(fb, m);
76 }
77 mutex_unlock(&dev->mode_config.fb_lock);
78
79 return 0;
80}
81
82static int show_locked(struct seq_file *m, void *arg)
83{
84 struct drm_info_node *node = (struct drm_info_node *) m->private;
85 struct drm_device *dev = node->minor->dev;
86 int (*show)(struct drm_device *dev, struct seq_file *m) =
87 node->info_ent->data;
88 int ret;
89
90 ret = mutex_lock_interruptible(&dev->struct_mutex);
91 if (ret)
92 return ret;
93
94 ret = show(dev, m);
95
96 mutex_unlock(&dev->struct_mutex);
97
98 return ret;
99}
100
101static struct drm_info_list msm_debugfs_list[] = {
102 {"gpu", show_locked, 0, msm_gpu_show},
103 {"gem", show_locked, 0, msm_gem_show},
104 { "mm", show_locked, 0, msm_mm_show },
105 { "fb", show_locked, 0, msm_fb_show },
106};
107
108static int late_init_minor(struct drm_minor *minor)
109{
110 int ret;
111
112 if (!minor)
113 return 0;
114
115 ret = msm_rd_debugfs_init(minor);
116 if (ret) {
117 dev_err(minor->dev->dev, "could not install rd debugfs\n");
118 return ret;
119 }
120
121 ret = msm_perf_debugfs_init(minor);
122 if (ret) {
123 dev_err(minor->dev->dev, "could not install perf debugfs\n");
124 return ret;
125 }
126
127 return 0;
128}
129
130int msm_debugfs_late_init(struct drm_device *dev)
131{
132 int ret;
133 ret = late_init_minor(dev->primary);
134 if (ret)
135 return ret;
136 ret = late_init_minor(dev->render);
137 if (ret)
138 return ret;
139 ret = late_init_minor(dev->control);
140 return ret;
141}
142
143int msm_debugfs_init(struct drm_minor *minor)
144{
145 struct drm_device *dev = minor->dev;
146 struct msm_drm_private *priv = dev->dev_private;
147 int ret;
148
149 ret = drm_debugfs_create_files(msm_debugfs_list,
150 ARRAY_SIZE(msm_debugfs_list),
151 minor->debugfs_root, minor);
152
153 if (ret) {
154 dev_err(dev->dev, "could not install msm_debugfs_list\n");
155 return ret;
156 }
157
158 if (priv->kms->funcs->debugfs_init)
159 ret = priv->kms->funcs->debugfs_init(priv->kms, minor);
160
161 return ret;
162}
163
164void msm_debugfs_cleanup(struct drm_minor *minor)
165{
166 struct drm_device *dev = minor->dev;
167 struct msm_drm_private *priv = dev->dev_private;
168
169 drm_debugfs_remove_files(msm_debugfs_list,
170 ARRAY_SIZE(msm_debugfs_list), minor);
171 if (!priv)
172 return;
173
174 if (priv->kms->funcs->debugfs_cleanup)
175 priv->kms->funcs->debugfs_cleanup(priv->kms, minor);
176
177 msm_rd_debugfs_cleanup(minor);
178 msm_perf_debugfs_cleanup(minor);
179}
180#endif
181
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2013-2016 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
5 */
6
7#ifdef CONFIG_DEBUG_FS
8
9#include <linux/debugfs.h>
10#include <linux/fault-inject.h>
11
12#include <drm/drm_debugfs.h>
13#include <drm/drm_file.h>
14#include <drm/drm_framebuffer.h>
15
16#include "msm_drv.h"
17#include "msm_gpu.h"
18#include "msm_kms.h"
19#include "msm_debugfs.h"
20#include "disp/msm_disp_snapshot.h"
21
22/*
23 * GPU Snapshot:
24 */
25
26struct msm_gpu_show_priv {
27 struct msm_gpu_state *state;
28 struct drm_device *dev;
29};
30
31static int msm_gpu_show(struct seq_file *m, void *arg)
32{
33 struct drm_printer p = drm_seq_file_printer(m);
34 struct msm_gpu_show_priv *show_priv = m->private;
35 struct msm_drm_private *priv = show_priv->dev->dev_private;
36 struct msm_gpu *gpu = priv->gpu;
37 int ret;
38
39 ret = mutex_lock_interruptible(&gpu->lock);
40 if (ret)
41 return ret;
42
43 drm_printf(&p, "%s Status:\n", gpu->name);
44 gpu->funcs->show(gpu, show_priv->state, &p);
45
46 mutex_unlock(&gpu->lock);
47
48 return 0;
49}
50
51static int msm_gpu_release(struct inode *inode, struct file *file)
52{
53 struct seq_file *m = file->private_data;
54 struct msm_gpu_show_priv *show_priv = m->private;
55 struct msm_drm_private *priv = show_priv->dev->dev_private;
56 struct msm_gpu *gpu = priv->gpu;
57
58 mutex_lock(&gpu->lock);
59 gpu->funcs->gpu_state_put(show_priv->state);
60 mutex_unlock(&gpu->lock);
61
62 kfree(show_priv);
63
64 return single_release(inode, file);
65}
66
67static int msm_gpu_open(struct inode *inode, struct file *file)
68{
69 struct drm_device *dev = inode->i_private;
70 struct msm_drm_private *priv = dev->dev_private;
71 struct msm_gpu *gpu = priv->gpu;
72 struct msm_gpu_show_priv *show_priv;
73 int ret;
74
75 if (!gpu || !gpu->funcs->gpu_state_get)
76 return -ENODEV;
77
78 show_priv = kmalloc(sizeof(*show_priv), GFP_KERNEL);
79 if (!show_priv)
80 return -ENOMEM;
81
82 ret = mutex_lock_interruptible(&gpu->lock);
83 if (ret)
84 goto free_priv;
85
86 pm_runtime_get_sync(&gpu->pdev->dev);
87 msm_gpu_hw_init(gpu);
88 show_priv->state = gpu->funcs->gpu_state_get(gpu);
89 pm_runtime_put_sync(&gpu->pdev->dev);
90
91 mutex_unlock(&gpu->lock);
92
93 if (IS_ERR(show_priv->state)) {
94 ret = PTR_ERR(show_priv->state);
95 goto free_priv;
96 }
97
98 show_priv->dev = dev;
99
100 ret = single_open(file, msm_gpu_show, show_priv);
101 if (ret)
102 goto free_priv;
103
104 return 0;
105
106free_priv:
107 kfree(show_priv);
108 return ret;
109}
110
111static const struct file_operations msm_gpu_fops = {
112 .owner = THIS_MODULE,
113 .open = msm_gpu_open,
114 .read = seq_read,
115 .llseek = seq_lseek,
116 .release = msm_gpu_release,
117};
118
119/*
120 * Display Snapshot:
121 */
122
123static int msm_kms_show(struct seq_file *m, void *arg)
124{
125 struct drm_printer p = drm_seq_file_printer(m);
126 struct msm_disp_state *state = m->private;
127
128 msm_disp_state_print(state, &p);
129
130 return 0;
131}
132
133static int msm_kms_release(struct inode *inode, struct file *file)
134{
135 struct seq_file *m = file->private_data;
136 struct msm_disp_state *state = m->private;
137
138 msm_disp_state_free(state);
139
140 return single_release(inode, file);
141}
142
143static int msm_kms_open(struct inode *inode, struct file *file)
144{
145 struct drm_device *dev = inode->i_private;
146 struct msm_drm_private *priv = dev->dev_private;
147 struct msm_disp_state *state;
148 int ret;
149
150 if (!priv->kms)
151 return -ENODEV;
152
153 ret = mutex_lock_interruptible(&priv->kms->dump_mutex);
154 if (ret)
155 return ret;
156
157 state = msm_disp_snapshot_state_sync(priv->kms);
158
159 mutex_unlock(&priv->kms->dump_mutex);
160
161 if (IS_ERR(state)) {
162 return PTR_ERR(state);
163 }
164
165 ret = single_open(file, msm_kms_show, state);
166 if (ret) {
167 msm_disp_state_free(state);
168 return ret;
169 }
170
171 return 0;
172}
173
174static const struct file_operations msm_kms_fops = {
175 .owner = THIS_MODULE,
176 .open = msm_kms_open,
177 .read = seq_read,
178 .llseek = seq_lseek,
179 .release = msm_kms_release,
180};
181
182/*
183 * Other debugfs:
184 */
185
186static unsigned long last_shrink_freed;
187
188static int
189shrink_get(void *data, u64 *val)
190{
191 *val = last_shrink_freed;
192
193 return 0;
194}
195
196static int
197shrink_set(void *data, u64 val)
198{
199 struct drm_device *dev = data;
200
201 last_shrink_freed = msm_gem_shrinker_shrink(dev, val);
202
203 return 0;
204}
205
206DEFINE_DEBUGFS_ATTRIBUTE(shrink_fops,
207 shrink_get, shrink_set,
208 "0x%08llx\n");
209
210
211static int msm_gem_show(struct seq_file *m, void *arg)
212{
213 struct drm_info_node *node = (struct drm_info_node *) m->private;
214 struct drm_device *dev = node->minor->dev;
215 struct msm_drm_private *priv = dev->dev_private;
216 int ret;
217
218 ret = mutex_lock_interruptible(&priv->obj_lock);
219 if (ret)
220 return ret;
221
222 msm_gem_describe_objects(&priv->objects, m);
223
224 mutex_unlock(&priv->obj_lock);
225
226 return 0;
227}
228
229static int msm_mm_show(struct seq_file *m, void *arg)
230{
231 struct drm_info_node *node = (struct drm_info_node *) m->private;
232 struct drm_device *dev = node->minor->dev;
233 struct drm_printer p = drm_seq_file_printer(m);
234
235 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
236
237 return 0;
238}
239
240static int msm_fb_show(struct seq_file *m, void *arg)
241{
242 struct drm_info_node *node = (struct drm_info_node *) m->private;
243 struct drm_device *dev = node->minor->dev;
244 struct msm_drm_private *priv = dev->dev_private;
245 struct drm_framebuffer *fb, *fbdev_fb = NULL;
246
247 if (priv->fbdev) {
248 seq_printf(m, "fbcon ");
249 fbdev_fb = priv->fbdev->fb;
250 msm_framebuffer_describe(fbdev_fb, m);
251 }
252
253 mutex_lock(&dev->mode_config.fb_lock);
254 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
255 if (fb == fbdev_fb)
256 continue;
257
258 seq_printf(m, "user ");
259 msm_framebuffer_describe(fb, m);
260 }
261 mutex_unlock(&dev->mode_config.fb_lock);
262
263 return 0;
264}
265
266static struct drm_info_list msm_debugfs_list[] = {
267 {"gem", msm_gem_show},
268 { "mm", msm_mm_show },
269 { "fb", msm_fb_show },
270};
271
272static int late_init_minor(struct drm_minor *minor)
273{
274 int ret;
275
276 if (!minor)
277 return 0;
278
279 ret = msm_rd_debugfs_init(minor);
280 if (ret) {
281 DRM_DEV_ERROR(minor->dev->dev, "could not install rd debugfs\n");
282 return ret;
283 }
284
285 ret = msm_perf_debugfs_init(minor);
286 if (ret) {
287 DRM_DEV_ERROR(minor->dev->dev, "could not install perf debugfs\n");
288 return ret;
289 }
290
291 return 0;
292}
293
294int msm_debugfs_late_init(struct drm_device *dev)
295{
296 int ret;
297 ret = late_init_minor(dev->primary);
298 if (ret)
299 return ret;
300 ret = late_init_minor(dev->render);
301 return ret;
302}
303
304void msm_debugfs_init(struct drm_minor *minor)
305{
306 struct drm_device *dev = minor->dev;
307 struct msm_drm_private *priv = dev->dev_private;
308
309 drm_debugfs_create_files(msm_debugfs_list,
310 ARRAY_SIZE(msm_debugfs_list),
311 minor->debugfs_root, minor);
312
313 debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root,
314 dev, &msm_gpu_fops);
315
316 debugfs_create_file("kms", S_IRUSR, minor->debugfs_root,
317 dev, &msm_kms_fops);
318
319 debugfs_create_u32("hangcheck_period_ms", 0600, minor->debugfs_root,
320 &priv->hangcheck_period);
321
322 debugfs_create_bool("disable_err_irq", 0600, minor->debugfs_root,
323 &priv->disable_err_irq);
324
325 debugfs_create_file("shrink", S_IRWXU, minor->debugfs_root,
326 dev, &shrink_fops);
327
328 if (priv->kms && priv->kms->funcs->debugfs_init)
329 priv->kms->funcs->debugfs_init(priv->kms, minor);
330
331#ifdef CONFIG_FAULT_INJECTION
332 fault_create_debugfs_attr("fail_gem_alloc", minor->debugfs_root,
333 &fail_gem_alloc);
334 fault_create_debugfs_attr("fail_gem_iova", minor->debugfs_root,
335 &fail_gem_iova);
336#endif
337}
338#endif
339