drivers/gpu/drm/msm/msm_debugfs.c

   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
  24 static 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
  37 static 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
  53 static int msm_mm_show(struct drm_device *dev, struct seq_file *m)
  54 {
  55         struct drm_printer p = drm_seq_file_printer(m);
  56
  57         drm_mm_print(&dev->vma_offset_manager->vm_addr_space_mm, &p);
  58
  59         return 0;
  60 }
  61
  62 static int msm_fb_show(struct drm_device *dev, struct seq_file *m)
  63 {
  64         struct msm_drm_private *priv = dev->dev_private;
  65         struct drm_framebuffer *fb, *fbdev_fb = NULL;
  66
  67         if (priv->fbdev) {
  68                 seq_printf(m, "fbcon ");
  69                 fbdev_fb = priv->fbdev->fb;
  70                 msm_framebuffer_describe(fbdev_fb, m);
  71         }
  72
  73         mutex_lock(&dev->mode_config.fb_lock);
  74         list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
  75                 if (fb == fbdev_fb)
  76                         continue;
  77
  78                 seq_printf(m, "user ");
  79                 msm_framebuffer_describe(fb, m);
  80         }
  81         mutex_unlock(&dev->mode_config.fb_lock);
  82
  83         return 0;
  84 }
  85
  86 static int show_locked(struct seq_file *m, void *arg)
  87 {
  88         struct drm_info_node *node = (struct drm_info_node *) m->private;
  89         struct drm_device *dev = node->minor->dev;
  90         int (*show)(struct drm_device *dev, struct seq_file *m) =
  91                         node->info_ent->data;
  92         int ret;
  93
  94         ret = mutex_lock_interruptible(&dev->struct_mutex);
  95         if (ret)
  96                 return ret;
  97
  98         ret = show(dev, m);
  99
 100         mutex_unlock(&dev->struct_mutex);
 101
 102         return ret;
 103 }
 104
 105 static struct drm_info_list msm_debugfs_list[] = {
 106                 {"gpu", show_locked, 0, msm_gpu_show},
 107                 {"gem", show_locked, 0, msm_gem_show},
 108                 { "mm", show_locked, 0, msm_mm_show },
 109                 { "fb", show_locked, 0, msm_fb_show },
 110 };
 111
 112 static int late_init_minor(struct drm_minor *minor)
 113 {
 114         int ret;
 115
 116         if (!minor)
 117                 return 0;
 118
 119         ret = msm_rd_debugfs_init(minor);
 120         if (ret) {
 121                 dev_err(minor->dev->dev, "could not install rd debugfs\n");
 122                 return ret;
 123         }
 124
 125         ret = msm_perf_debugfs_init(minor);
 126         if (ret) {
 127                 dev_err(minor->dev->dev, "could not install perf debugfs\n");
 128                 return ret;
 129         }
 130
 131         return 0;
 132 }
 133
 134 int msm_debugfs_late_init(struct drm_device *dev)
 135 {
 136         int ret;
 137         ret = late_init_minor(dev->primary);
 138         if (ret)
 139                 return ret;
 140         ret = late_init_minor(dev->render);
 141         if (ret)
 142                 return ret;
 143         ret = late_init_minor(dev->control);
 144         return ret;
 145 }
 146
 147 int msm_debugfs_init(struct drm_minor *minor)
 148 {
 149         struct drm_device *dev = minor->dev;
 150         struct msm_drm_private *priv = dev->dev_private;
 151         int ret;
 152
 153         ret = drm_debugfs_create_files(msm_debugfs_list,
 154                         ARRAY_SIZE(msm_debugfs_list),
 155                         minor->debugfs_root, minor);
 156
 157         if (ret) {
 158                 dev_err(dev->dev, "could not install msm_debugfs_list\n");
 159                 return ret;
 160         }
 161
 162         if (priv->kms->funcs->debugfs_init)
 163                 ret = priv->kms->funcs->debugfs_init(priv->kms, minor);
 164
 165         return ret;
 166 }
 167
 168 void msm_debugfs_cleanup(struct drm_minor *minor)
 169 {
 170         struct drm_device *dev = minor->dev;
 171         struct msm_drm_private *priv = dev->dev_private;
 172
 173         if (!priv)
 174                 return;
 175
 176         if (priv->kms->funcs->debugfs_cleanup)
 177                 priv->kms->funcs->debugfs_cleanup(priv->kms, minor);
 178
 179         msm_rd_debugfs_cleanup(minor);
 180         msm_perf_debugfs_cleanup(minor);
 181 }
 182 #endif
 183