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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
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 int ret;
51
52 ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex);
53 if (ret)
54 return ret;
55
56 gpu->funcs->gpu_state_put(show_priv->state);
57 mutex_unlock(&show_priv->dev->struct_mutex);
58
59 kfree(show_priv);
60
61 return single_release(inode, file);
62}
63
64static int msm_gpu_open(struct inode *inode, struct file *file)
65{
66 struct drm_device *dev = inode->i_private;
67 struct msm_drm_private *priv = dev->dev_private;
68 struct msm_gpu *gpu = priv->gpu;
69 struct msm_gpu_show_priv *show_priv;
70 int ret;
71
72 if (!gpu || !gpu->funcs->gpu_state_get)
73 return -ENODEV;
74
75 show_priv = kmalloc(sizeof(*show_priv), GFP_KERNEL);
76 if (!show_priv)
77 return -ENOMEM;
78
79 ret = mutex_lock_interruptible(&dev->struct_mutex);
80 if (ret)
81 goto free_priv;
82
83 pm_runtime_get_sync(&gpu->pdev->dev);
84 show_priv->state = gpu->funcs->gpu_state_get(gpu);
85 pm_runtime_put_sync(&gpu->pdev->dev);
86
87 mutex_unlock(&dev->struct_mutex);
88
89 if (IS_ERR(show_priv->state)) {
90 ret = PTR_ERR(show_priv->state);
91 goto free_priv;
92 }
93
94 show_priv->dev = dev;
95
96 ret = single_open(file, msm_gpu_show, show_priv);
97 if (ret)
98 goto free_priv;
99
100 return 0;
101
102free_priv:
103 kfree(show_priv);
104 return ret;
105}
106
107static const struct file_operations msm_gpu_fops = {
108 .owner = THIS_MODULE,
109 .open = msm_gpu_open,
110 .read = seq_read,
111 .llseek = seq_lseek,
112 .release = msm_gpu_release,
113};
114
115static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
116{
117 struct msm_drm_private *priv = dev->dev_private;
118 struct msm_gpu *gpu = priv->gpu;
119
120 if (gpu) {
121 seq_printf(m, "Active Objects (%s):\n", gpu->name);
122 msm_gem_describe_objects(&gpu->active_list, m);
123 }
124
125 seq_printf(m, "Inactive Objects:\n");
126 msm_gem_describe_objects(&priv->inactive_list, m);
127
128 return 0;
129}
130
131static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
132{
133 struct drm_printer p = drm_seq_file_printer(m);
134
135 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
136
137 return 0;
138}
139
140static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
141{
142 struct msm_drm_private *priv = dev->dev_private;
143 struct drm_framebuffer *fb, *fbdev_fb = NULL;
144
145 if (priv->fbdev) {
146 seq_printf(m, "fbcon ");
147 fbdev_fb = priv->fbdev->fb;
148 msm_framebuffer_describe(fbdev_fb, m);
149 }
150
151 mutex_lock(&dev->mode_config.fb_lock);
152 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
153 if (fb == fbdev_fb)
154 continue;
155
156 seq_printf(m, "user ");
157 msm_framebuffer_describe(fb, m);
158 }
159 mutex_unlock(&dev->mode_config.fb_lock);
160
161 return 0;
162}
163
164static int show_locked(struct seq_file *m, void *arg)
165{
166 struct drm_info_node *node = (struct drm_info_node *) m->private;
167 struct drm_device *dev = node->minor->dev;
168 int (*show)(struct drm_device *dev, struct seq_file *m) =
169 node->info_ent->data;
170 int ret;
171
172 ret = mutex_lock_interruptible(&dev->struct_mutex);
173 if (ret)
174 return ret;
175
176 ret = show(dev, m);
177
178 mutex_unlock(&dev->struct_mutex);
179
180 return ret;
181}
182
183static struct drm_info_list msm_debugfs_list[] = {
184 {"gem", show_locked, 0, msm_gem_show},
185 { "mm", show_locked, 0, msm_mm_show },
186 { "fb", show_locked, 0, msm_fb_show },
187};
188
189static int late_init_minor(struct drm_minor *minor)
190{
191 int ret;
192
193 if (!minor)
194 return 0;
195
196 ret = msm_rd_debugfs_init(minor);
197 if (ret) {
198 DRM_DEV_ERROR(minor->dev->dev, "could not install rd debugfs\n");
199 return ret;
200 }
201
202 ret = msm_perf_debugfs_init(minor);
203 if (ret) {
204 DRM_DEV_ERROR(minor->dev->dev, "could not install perf debugfs\n");
205 return ret;
206 }
207
208 return 0;
209}
210
211int msm_debugfs_late_init(struct drm_device *dev)
212{
213 int ret;
214 ret = late_init_minor(dev->primary);
215 if (ret)
216 return ret;
217 ret = late_init_minor(dev->render);
218 return ret;
219}
220
221int msm_debugfs_init(struct drm_minor *minor)
222{
223 struct drm_device *dev = minor->dev;
224 struct msm_drm_private *priv = dev->dev_private;
225 int ret;
226
227 ret = drm_debugfs_create_files(msm_debugfs_list,
228 ARRAY_SIZE(msm_debugfs_list),
229 minor->debugfs_root, minor);
230
231 if (ret) {
232 DRM_DEV_ERROR(dev->dev, "could not install msm_debugfs_list\n");
233 return ret;
234 }
235
236 debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root,
237 dev, &msm_gpu_fops);
238
239 if (priv->kms && priv->kms->funcs->debugfs_init) {
240 ret = priv->kms->funcs->debugfs_init(priv->kms, minor);
241 if (ret)
242 return ret;
243 }
244
245 return ret;
246}
247#endif
248
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