2 * Copyright (C) 2013-2016 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
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.
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
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/>.
18 #ifdef CONFIG_DEBUG_FS
19 #include <linux/debugfs.h>
23 #include "msm_debugfs.h"
25 struct msm_gpu_show_priv {
26 struct msm_gpu_state *state;
27 struct drm_device *dev;
30 static int msm_gpu_show(struct seq_file *m, void *arg)
32 struct drm_printer p = drm_seq_file_printer(m);
33 struct msm_gpu_show_priv *show_priv = m->private;
34 struct msm_drm_private *priv = show_priv->dev->dev_private;
35 struct msm_gpu *gpu = priv->gpu;
38 ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex);
42 drm_printf(&p, "%s Status:\n", gpu->name);
43 gpu->funcs->show(gpu, show_priv->state, &p);
45 mutex_unlock(&show_priv->dev->struct_mutex);
50 static int msm_gpu_release(struct inode *inode, struct file *file)
52 struct seq_file *m = file->private_data;
53 struct msm_gpu_show_priv *show_priv = m->private;
54 struct msm_drm_private *priv = show_priv->dev->dev_private;
55 struct msm_gpu *gpu = priv->gpu;
57 mutex_lock(&show_priv->dev->struct_mutex);
58 gpu->funcs->gpu_state_put(show_priv->state);
59 mutex_unlock(&show_priv->dev->struct_mutex);
63 return single_release(inode, file);
66 static int msm_gpu_open(struct inode *inode, struct file *file)
68 struct drm_device *dev = inode->i_private;
69 struct msm_drm_private *priv = dev->dev_private;
70 struct msm_gpu *gpu = priv->gpu;
71 struct msm_gpu_show_priv *show_priv;
77 show_priv = kmalloc(sizeof(*show_priv), GFP_KERNEL);
81 ret = mutex_lock_interruptible(&dev->struct_mutex);
85 pm_runtime_get_sync(&gpu->pdev->dev);
87 show_priv->state = gpu->funcs->gpu_state_get(gpu);
88 pm_runtime_put_sync(&gpu->pdev->dev);
90 mutex_unlock(&dev->struct_mutex);
92 if (IS_ERR(show_priv->state)) {
93 ret = PTR_ERR(show_priv->state);
99 ret = single_open(file, msm_gpu_show, show_priv);
110 static const struct file_operations msm_gpu_fops = {
111 .owner = THIS_MODULE,
112 .open = msm_gpu_open,
115 .release = msm_gpu_release,
118 static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
120 struct msm_drm_private *priv = dev->dev_private;
121 struct msm_gpu *gpu = priv->gpu;
124 seq_printf(m, "Active Objects (%s):\n", gpu->name);
125 msm_gem_describe_objects(&gpu->active_list, m);
128 seq_printf(m, "Inactive Objects:\n");
129 msm_gem_describe_objects(&priv->inactive_list, m);
134 static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
136 struct drm_printer p = drm_seq_file_printer(m);
138 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
143 static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
145 struct msm_drm_private *priv = dev->dev_private;
146 struct drm_framebuffer *fb, *fbdev_fb = NULL;
149 seq_printf(m, "fbcon ");
150 fbdev_fb = priv->fbdev->fb;
151 msm_framebuffer_describe(fbdev_fb, m);
154 mutex_lock(&dev->mode_config.fb_lock);
155 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
159 seq_printf(m, "user ");
160 msm_framebuffer_describe(fb, m);
162 mutex_unlock(&dev->mode_config.fb_lock);
167 static int show_locked(struct seq_file *m, void *arg)
169 struct drm_info_node *node = (struct drm_info_node *) m->private;
170 struct drm_device *dev = node->minor->dev;
171 int (*show)(struct drm_device *dev, struct seq_file *m) =
172 node->info_ent->data;
175 ret = mutex_lock_interruptible(&dev->struct_mutex);
181 mutex_unlock(&dev->struct_mutex);
186 static struct drm_info_list msm_debugfs_list[] = {
187 {"gem", show_locked, 0, msm_gem_show},
188 { "mm", show_locked, 0, msm_mm_show },
189 { "fb", show_locked, 0, msm_fb_show },
192 static int late_init_minor(struct drm_minor *minor)
199 ret = msm_rd_debugfs_init(minor);
201 dev_err(minor->dev->dev, "could not install rd debugfs\n");
205 ret = msm_perf_debugfs_init(minor);
207 dev_err(minor->dev->dev, "could not install perf debugfs\n");
214 int msm_debugfs_late_init(struct drm_device *dev)
217 ret = late_init_minor(dev->primary);
220 ret = late_init_minor(dev->render);
224 int msm_debugfs_init(struct drm_minor *minor)
226 struct drm_device *dev = minor->dev;
227 struct msm_drm_private *priv = dev->dev_private;
230 ret = drm_debugfs_create_files(msm_debugfs_list,
231 ARRAY_SIZE(msm_debugfs_list),
232 minor->debugfs_root, minor);
235 dev_err(dev->dev, "could not install msm_debugfs_list\n");
239 debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root,
242 if (priv->kms->funcs->debugfs_init) {
243 ret = priv->kms->funcs->debugfs_init(priv->kms, minor);