1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2013-2016 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
8 #include <linux/debugfs.h>
12 #include "msm_debugfs.h"
14 struct msm_gpu_show_priv {
15 struct msm_gpu_state *state;
16 struct drm_device *dev;
19 static int msm_gpu_show(struct seq_file *m, void *arg)
21 struct drm_printer p = drm_seq_file_printer(m);
22 struct msm_gpu_show_priv *show_priv = m->private;
23 struct msm_drm_private *priv = show_priv->dev->dev_private;
24 struct msm_gpu *gpu = priv->gpu;
27 ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex);
31 drm_printf(&p, "%s Status:\n", gpu->name);
32 gpu->funcs->show(gpu, show_priv->state, &p);
34 mutex_unlock(&show_priv->dev->struct_mutex);
39 static int msm_gpu_release(struct inode *inode, struct file *file)
41 struct seq_file *m = file->private_data;
42 struct msm_gpu_show_priv *show_priv = m->private;
43 struct msm_drm_private *priv = show_priv->dev->dev_private;
44 struct msm_gpu *gpu = priv->gpu;
47 ret = mutex_lock_interruptible(&show_priv->dev->struct_mutex);
51 gpu->funcs->gpu_state_put(show_priv->state);
52 mutex_unlock(&show_priv->dev->struct_mutex);
56 return single_release(inode, file);
59 static int msm_gpu_open(struct inode *inode, struct file *file)
61 struct drm_device *dev = inode->i_private;
62 struct msm_drm_private *priv = dev->dev_private;
63 struct msm_gpu *gpu = priv->gpu;
64 struct msm_gpu_show_priv *show_priv;
67 if (!gpu || !gpu->funcs->gpu_state_get)
70 show_priv = kmalloc(sizeof(*show_priv), GFP_KERNEL);
74 ret = mutex_lock_interruptible(&dev->struct_mutex);
78 pm_runtime_get_sync(&gpu->pdev->dev);
79 show_priv->state = gpu->funcs->gpu_state_get(gpu);
80 pm_runtime_put_sync(&gpu->pdev->dev);
82 mutex_unlock(&dev->struct_mutex);
84 if (IS_ERR(show_priv->state)) {
85 ret = PTR_ERR(show_priv->state);
91 ret = single_open(file, msm_gpu_show, show_priv);
102 static const struct file_operations msm_gpu_fops = {
103 .owner = THIS_MODULE,
104 .open = msm_gpu_open,
107 .release = msm_gpu_release,
110 static int msm_gem_show(struct drm_device *dev, struct seq_file *m)
112 struct msm_drm_private *priv = dev->dev_private;
113 struct msm_gpu *gpu = priv->gpu;
116 seq_printf(m, "Active Objects (%s):\n", gpu->name);
117 msm_gem_describe_objects(&gpu->active_list, m);
120 seq_printf(m, "Inactive Objects:\n");
121 msm_gem_describe_objects(&priv->inactive_list, m);
126 static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
128 struct drm_printer p = drm_seq_file_printer(m);
130 drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
135 static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
137 struct msm_drm_private *priv = dev->dev_private;
138 struct drm_framebuffer *fb, *fbdev_fb = NULL;
141 seq_printf(m, "fbcon ");
142 fbdev_fb = priv->fbdev->fb;
143 msm_framebuffer_describe(fbdev_fb, m);
146 mutex_lock(&dev->mode_config.fb_lock);
147 list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
151 seq_printf(m, "user ");
152 msm_framebuffer_describe(fb, m);
154 mutex_unlock(&dev->mode_config.fb_lock);
159 static int show_locked(struct seq_file *m, void *arg)
161 struct drm_info_node *node = (struct drm_info_node *) m->private;
162 struct drm_device *dev = node->minor->dev;
163 int (*show)(struct drm_device *dev, struct seq_file *m) =
164 node->info_ent->data;
167 ret = mutex_lock_interruptible(&dev->struct_mutex);
173 mutex_unlock(&dev->struct_mutex);
178 static struct drm_info_list msm_debugfs_list[] = {
179 {"gem", show_locked, 0, msm_gem_show},
180 { "mm", show_locked, 0, msm_mm_show },
181 { "fb", show_locked, 0, msm_fb_show },
184 static int late_init_minor(struct drm_minor *minor)
191 ret = msm_rd_debugfs_init(minor);
193 DRM_DEV_ERROR(minor->dev->dev, "could not install rd debugfs\n");
197 ret = msm_perf_debugfs_init(minor);
199 DRM_DEV_ERROR(minor->dev->dev, "could not install perf debugfs\n");
206 int msm_debugfs_late_init(struct drm_device *dev)
209 ret = late_init_minor(dev->primary);
212 ret = late_init_minor(dev->render);
216 int msm_debugfs_init(struct drm_minor *minor)
218 struct drm_device *dev = minor->dev;
219 struct msm_drm_private *priv = dev->dev_private;
222 ret = drm_debugfs_create_files(msm_debugfs_list,
223 ARRAY_SIZE(msm_debugfs_list),
224 minor->debugfs_root, minor);
227 DRM_DEV_ERROR(dev->dev, "could not install msm_debugfs_list\n");
231 debugfs_create_file("gpu", S_IRUSR, minor->debugfs_root,
234 if (priv->kms && priv->kms->funcs->debugfs_init) {
235 ret = priv->kms->funcs->debugfs_init(priv->kms, minor);